Interference avoidance scheduling method, network equipment, terminal, device and storage medium

Abstract

The invention provides an interference avoidance scheduling method, network equipment, a terminal, a device and a storage medium, and the method comprises the steps that the network equipment determines the uplink interference state of each RRU in a multi-RRU cell based on the uplink IOT measurement result of the RRU, and / or determines the uplink interference state of each RRU in the multi-RRU cell based on the uplink IOT measurement result of the RRU; determining a downlink interfered state of each RRU in the multi-RRU cell based on a downlink rate related index of the terminal or a CSIIM interference value reported by the terminal; and performing interference avoidance scheduling based on the interfered state of each RRU. The problems of low resource utilization efficiency, limited cell capacity and the like caused by starting interference avoidance or interference randomization scheduling for the whole cell are avoided, and the resource utilization efficiency and the whole cell capacity can be effectively improved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to an interference avoidance scheduling method, network equipment, terminal, device and storage medium. Background Art

[0002] In indoor distributed systems or scenarios with high-speed user mobility, the coverage radius of each Remote Radio Unit (RRU) is relatively small. User mobility leads to frequent cell reselection and handover, severely impacting communication quality. A solution can be to expand cell coverage through cell merging. Cell merging uses optical fiber to transmit the baseband signals of RRUs installed at different base station sites, merging these physical cells into a single cell via the Building Baseband Unit (BBU), thereby expanding cell coverage. Cell merging offers the following benefits: reduced handovers, lowered call drop rates, and fewer neighboring cell conflicts. It allows for different physical cells to be accommodated within a single logical cell, allowing for selective adjustment of the network structure and more flexible network expansion and coverage.

[0003] Currently, in the uplink and downlink service scheduling of cell merging scenarios, interference avoidance scheduling is performed based on the interference situation of the entire cell. If the cell interference is high, the entire cell will initiate interference avoidance or interference randomization scheduling, which not only reduces resource utilization efficiency but also limits cell capacity. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present application provides an interference avoidance scheduling method, network equipment, terminal, device and storage medium.

[0005] In a first aspect, the present application provides an interference avoidance scheduling method, which is applied to a network device, including:

[0006] Determining the uplink interference status of each RRU in a multi-RRU cell based on an uplink interference noise (IOT) measurement result of a remote radio unit (RRU), and / or determining the downlink interference status of each RRU in a multi-RRU cell based on a downlink rate-related indicator of a terminal or a channel state information interference measurement (CSIIM) interference value reported by the terminal; wherein the downlink rate-related indicator includes a downlink throughput, a downlink modulation and coding scheme (MCS), or a channel quality indicator (CQI) reported by the terminal;

[0007] Interference avoidance scheduling is performed based on the interference status of each RRU.

[0008] In some embodiments, determining the uplink interference status of each RRU in a multi-RRU cell based on an uplink interference noise IOT measurement result of a remote radio unit (RRU) includes:

[0009] The uplink interference state of the RRU is determined based on the uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

[0010] In some embodiments, determining the uplink interference state of the RRU based on uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes:

[0011] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU;

[0012] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

[0013] In some embodiments, the method further comprises:

[0014] In the case where the RRU is an uplink high-interference RRU, the uplink high-interference frequency band and the uplink low-interference frequency band of the RRU are determined based on the uplink IOT measurement results of the RRU in each frequency domain segment;

[0015] The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

[0016] In some embodiments, determining the downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of the terminal or a channel state information interference measurement CSIIM interference value reported by the terminal includes:

[0017] Determine a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold;

[0018] The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU.

[0019] In some embodiments, determining the downlink interference state of the RRU based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU includes:

[0020] If the proportion of downlink high-interference terminals among uplink good-point terminals in the RRU in one or more consecutive statistical periods is greater than or equal to the fifth threshold, the RRU is determined to be a downlink high-interference RRU;

[0021] If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or multiple consecutive statistical periods is less than a fifth threshold, the RRU is determined to be a downlink low-interference RRU.

[0022] In some embodiments, the method further comprises:

[0023] In the case of a downlink high-interference RRU, the downlink high-interference frequency band and downlink low-interference frequency band of the RRU are determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU in each frequency domain segment;

[0024] Among them, the downlink high interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

[0025] In some embodiments, the method further comprises:

[0026] Send a set of CSIIM configuration information to the terminal;

[0027] A channel state information CSI report sent by a receiving terminal is received, where the CSI report includes a CSIIM interference value measured based on a set of CSIIM configuration information.

[0028] In some embodiments, the method further comprises:

[0029] Send N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell;

[0030] A CSI report or a CSIIM report sent by a terminal is received, where the CSI report or the CSIIM report includes a highest CSIIM interference value obtained by measurement based on N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0031] In some embodiments, the uplink good point terminal is any of the following:

[0032] For a first terminal, a measurement amount of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is an RRU with the largest measurement amount of an uplink signal sent by the first terminal among all RRUs to which the first terminal belongs; or

[0033] For the second terminal, the difference between the measurement amount of the uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and the measurement amount of the uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to the eighth threshold; the strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; or

[0034] The third terminal has an uplink rate-related indicator greater than or equal to a ninth threshold.

[0035] In some embodiments, performing interference avoidance scheduling based on the interference status of each RRU includes at least one of the following:

[0036] When a terminal under a high-interference RRU is scheduled, the low-interference frequency band of the high-interference RRU is selected as the scheduling resource for the scheduled terminal under the high-interference RRU;

[0037] Adjust the scheduling priority of the terminals under each RRU based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of their respective RRUs from small to large;

[0038] In scenarios where multiple terminals are reused, terminals under low-interference RRUs are given priority for pairing.

[0039] In a second aspect, the present application also provides an interference avoidance scheduling method, which is applied to a terminal, including:

[0040] Receive one or N sets of channel state information interference measurement (CSIIM) configuration information sent by a network device;

[0041] After measuring the CSIIM interference value based on the CSIIM configuration information, the CSIIM interference value is reported to the network device. The CSIIM interference value is used by the network device to determine the downlink interference status of each RRU in the multi-radio remote unit (RRU) cell and perform interference avoidance scheduling based on the interference status of each RRU.

[0042] N is equal to the number of RRUs in a multi-RRU cell.

[0043] In some embodiments, reporting the CSIIM interference value to the network device includes:

[0044] In the case of receiving a set of CSIIM configuration information sent by the network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or,

[0045] When receiving N sets of CSIIM configuration information sent by the network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0046] In a third aspect, the present application further provides a network device, including a memory, a transceiver, and a processor;

[0047] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0048] Determining the uplink interference status of each RRU in a multi-RRU cell based on an uplink interference noise (IOT) measurement result of a remote radio unit (RRU), and / or determining the downlink interference status of each RRU in a multi-RRU cell based on a downlink rate-related indicator of a terminal or a channel state information interference measurement (CSIIM) interference value reported by the terminal; wherein the downlink rate-related indicator includes a downlink throughput, a downlink modulation and coding scheme (MCS), or a channel quality indicator (CQI) reported by the terminal;

[0049] Interference avoidance scheduling is performed based on the interference status of each RRU.

[0050] In some embodiments, determining the uplink interference status of each RRU in a multi-RRU cell based on an uplink interference noise IOT measurement result of a remote radio unit (RRU) includes:

[0051] The uplink interference state of the RRU is determined based on the uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

[0052] In some embodiments, determining the uplink interference state of the RRU based on uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes:

[0053] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU;

[0054] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

[0055] In some embodiments, the operations further include:

[0056] In the case where the RRU is an uplink high-interference RRU, the uplink high-interference frequency band and the uplink low-interference frequency band of the RRU are determined based on the uplink IOT measurement results of the RRU in each frequency domain segment;

[0057] The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

[0058] In some embodiments, determining the downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of the terminal or a channel state information interference measurement CSIIM interference value reported by the terminal includes:

[0059] Determine a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold;

[0060] The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU.

[0061] In some embodiments, determining the downlink interference state of the RRU based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU includes:

[0062] If the proportion of downlink high-interference terminals among uplink good-point terminals in the RRU in one or more consecutive statistical periods is greater than or equal to the fifth threshold, the RRU is determined to be a downlink high-interference RRU;

[0063] If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or multiple consecutive statistical periods is less than a fifth threshold, the RRU is determined to be a downlink low-interference RRU.

[0064] In some embodiments, the operations further include:

[0065] In the case of a downlink high-interference RRU, the downlink high-interference frequency band and downlink low-interference frequency band of the RRU are determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU in each frequency domain segment;

[0066] Among them, the downlink high interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

[0067] In some embodiments, the operations further include:

[0068] Send a set of CSIIM configuration information to the terminal;

[0069] A channel state information CSI report sent by a receiving terminal is received, where the CSI report includes a CSIIM interference value measured based on a set of CSIIM configuration information.

[0070] In some embodiments, the operations further include:

[0071] Send N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell;

[0072] A CSI report or a CSIIM report sent by a terminal is received, where the CSI report or the CSIIM report includes a highest CSIIM interference value obtained by measurement based on N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0073] In some embodiments, the uplink good point terminal is any of the following:

[0074] For a first terminal, a measurement amount of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is an RRU with the largest measurement amount of an uplink signal sent by the first terminal among all RRUs to which the first terminal belongs; or

[0075] For the second terminal, the difference between the measurement amount of the uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and the measurement amount of the uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to the eighth threshold; the strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; or

[0076] The third terminal has an uplink rate-related indicator greater than or equal to a ninth threshold.

[0077] In some embodiments, performing interference avoidance scheduling based on the interference status of each RRU includes at least one of the following:

[0078] When a terminal under a high-interference RRU is scheduled, the low-interference frequency band of the high-interference RRU is selected as the scheduling resource for the scheduled terminal under the high-interference RRU;

[0079] Adjust the scheduling priority of the terminals under each RRU based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of their respective RRUs from small to large;

[0080] In scenarios where multiple terminals are reused, terminals under low-interference RRUs are given priority for pairing.

[0081] In a fourth aspect, the present application further provides a terminal, comprising a memory, a transceiver, and a processor;

[0082] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0083] Receive one or N sets of channel state information interference measurement (CSIIM) configuration information sent by a network device;

[0084] After measuring the CSIIM interference value based on the CSIIM configuration information, the CSIIM interference value is reported to the network device. The CSIIM interference value is used by the network device to determine the downlink interference status of each RRU in the multi-radio remote unit (RRU) cell and perform interference avoidance scheduling based on the interference status of each RRU.

[0085] N is equal to the number of RRUs in a multi-RRU cell.

[0086] In some embodiments, reporting the CSIIM interference value to the network device includes:

[0087] In the case of receiving a set of CSIIM configuration information sent by the network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or,

[0088] When receiving N sets of CSIIM configuration information sent by the network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0089] In a fifth aspect, the present application further provides an interference avoidance scheduling device, comprising:

[0090] a determination unit, configured to determine an uplink interference state of each RRU in a multi-RRU cell based on an uplink interference noise (IOT) measurement result of a remote radio unit (RRU), and / or determine a downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of a terminal or a channel state information interference measurement (CSIIM) interference value reported by the terminal; wherein the downlink rate-related indicator includes a downlink throughput, a downlink modulation and coding scheme (MCS), or a channel quality indicator (CQI) reported by the terminal;

[0091] The scheduling unit is used to perform interference avoidance scheduling based on the interference status of each RRU.

[0092] In some embodiments, determining the uplink interference state of each RRU in a multi-RRU cell based on an uplink interference noise IOT measurement result of a remote radio unit (RRU) includes:

[0093] The uplink interference state of the RRU is determined based on the uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

[0094] In some embodiments, determining the uplink interference state of the RRU based on uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes:

[0095] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU;

[0096] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

[0097] In some embodiments, the determining unit is further configured to:

[0098] In the case where the RRU is an uplink high-interference RRU, the uplink high-interference frequency band and the uplink low-interference frequency band of the RRU are determined based on the uplink IOT measurement results of the RRU in each frequency domain segment;

[0099] The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

[0100] In some embodiments, determining the downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of the terminal or a channel state information interference measurement CSIIM interference value reported by the terminal includes:

[0101] Determine a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold;

[0102] The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU.

[0103] In some embodiments, determining the downlink interference state of the RRU based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU includes:

[0104] If the proportion of downlink high-interference terminals among uplink good-point terminals in the RRU in one or more consecutive statistical periods is greater than or equal to the fifth threshold, the RRU is determined to be a downlink high-interference RRU;

[0105] If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or multiple consecutive statistical periods is less than a fifth threshold, the RRU is determined to be a downlink low-interference RRU.

[0106] In some embodiments, the determining unit is further configured to:

[0107] In the case of a downlink high-interference RRU, the downlink high-interference frequency band and downlink low-interference frequency band of the RRU are determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU in each frequency domain segment;

[0108] Among them, the downlink high interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

[0109] In some embodiments, the apparatus further comprises:

[0110] A first sending unit, configured to send a set of CSIIM configuration information to a terminal;

[0111] The first receiving unit is configured to receive a channel state information CSI report sent by a terminal, where the CSI report includes a CSIIM interference value measured based on a set of CSIIM configuration information.

[0112] In some embodiments, the apparatus further comprises:

[0113] The second sending unit is configured to send N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell;

[0114] The second receiving unit is configured to receive a CSI report or a CSIIM report sent by the terminal, where the CSI report or the CSIIM report includes a maximum CSIIM interference value measured based on N sets of CSIIM configuration information and CSIIM configuration information corresponding to the maximum CSIIM interference value.

[0115] In some embodiments, the uplink good point terminal is any of the following:

[0116] For a first terminal, a measurement amount of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is an RRU with the largest measurement amount of an uplink signal sent by the first terminal among all RRUs to which the first terminal belongs; or

[0117] For the second terminal, the difference between the measurement amount of the uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and the measurement amount of the uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to the eighth threshold; the strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; or

[0118] The third terminal has an uplink rate-related indicator greater than or equal to a ninth threshold.

[0119] In some embodiments, performing interference avoidance scheduling based on the interference status of each RRU includes at least one of the following:

[0120] When a terminal under a high-interference RRU is scheduled, the low-interference frequency band of the high-interference RRU is selected as the scheduling resource for the scheduled terminal under the high-interference RRU;

[0121] Adjust the scheduling priority of the terminals under each RRU based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of their respective RRUs from small to large;

[0122] In scenarios where multiple terminals are reused, terminals under low-interference RRUs are given priority for pairing.

[0123] In a sixth aspect, the present application further provides an interference avoidance scheduling device, including:

[0124] A third receiving unit is configured to receive one or N sets of channel state information interference measurement CSIIM configuration information sent by a network device;

[0125] A reporting unit is configured to measure a CSIIM interference value based on the CSIIM configuration information and report the CSIIM interference value to a network device. The CSIIM interference value is used by the network device to determine the downlink interference status of each RRU in a multi-radio remote unit (RRU) cell and perform interference avoidance scheduling based on the interference status of each RRU.

[0126] N is equal to the number of RRUs in a multi-RRU cell.

[0127] In some embodiments, reporting the CSIIM interference value to the network device includes:

[0128] In the case of receiving a set of CSIIM configuration information sent by the network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or,

[0129] When receiving N sets of CSIIM configuration information sent by the network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0130] In the seventh aspect, the present application also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the interference avoidance scheduling method described in the first aspect as described above, or execute the interference avoidance scheduling method described in the second aspect as described above.

[0131] In an eighth aspect, the present application also provides a communication device, in which a computer program is stored, and the computer program is used to enable the communication device to execute the interference avoidance scheduling method described in the first aspect above, or to execute the interference avoidance scheduling method described in the second aspect above.

[0132] In the ninth aspect, the present application also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the interference avoidance scheduling method described in the first aspect as described above, or execute the interference avoidance scheduling method described in the second aspect as described above.

[0133] In the tenth aspect, the present application also provides a chip product, in which a computer program is stored, and the computer program is used to enable the chip product to execute the interference avoidance scheduling method described in the first aspect above, or to execute the interference avoidance scheduling method described in the second aspect above.

[0134] The interference avoidance scheduling method, network equipment, terminal, apparatus and storage medium provided in the present application determine the uplink interference status of each RRU in a multi-RRU cell based on the uplink IOT measurement results of the RRU, and / or determine the downlink interference status of each RRU in a multi-RRU cell based on the downlink rate-related indicators of the terminal or the CSIIM interference value reported by the terminal, and then perform interference avoidance scheduling on the terminal according to the interference status of each RRU, thereby avoiding the problems of low resource utilization efficiency and limited cell capacity caused by initiating interference avoidance or interference randomization scheduling for the entire cell, and can effectively improve resource utilization efficiency and overall cell capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0135] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0136] Figure 1 This is a flow chart of the interference avoidance scheduling method provided in an embodiment of the present application;

[0137] Figure 2 An example diagram of multiple RRU cells provided in an embodiment of the present application;

[0138] Figure 3 This is a second flow chart of the interference avoidance scheduling method provided in an embodiment of the present application;

[0139] Figure 4 A schematic diagram of the structure of a network device provided in an embodiment of the present application;

[0140] Figure 5 A schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0141] Figure 6 This is a schematic diagram of the structure of the interference avoidance scheduling device provided in an embodiment of the present application;

[0142] Figure 7 This is the second structural diagram of the interference avoidance scheduling device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0143] In the embodiments of this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0144] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0145] In the embodiments of the present application, the terms "first," "second," and the like are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more.

[0146] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0147] In order to facilitate a clearer understanding of the technical solutions of the various embodiments of the present application, some technical contents related to the various embodiments of the present application are first introduced.

[0148] Cell merging is primarily used in small-antenna cells. Due to actual communication characteristics, most users can only be within the coverage of one or a few of the combined RRUs. If the number of combined RRUs is large, after a user sends an uplink signal, the base station identifies the RRU to which the user belongs based on the characteristics of the received signal and receives the user's uplink signal. The same applies to downlink signals. The base station can transmit downlink signals based on the identified RRU to which the user belongs. This not only saves energy, but also reduces cell interference and increases cell capacity.

[0149] Network coverage generally combines macrocellular coverage with indoor cell coverage. Macrocellular coverage is primarily used in outdoor scenarios, while indoor cell coverage is primarily used in indoor venues such as buildings. Inter-cell interference can occur in areas where macrocellular and indoor cell coverage overlap. For downlink, macrocellular coverage generally uses large-scale antenna beamforming technology, while indoor cell coverage has relatively low antenna beamforming gain.

[0150] In areas where macrocell coverage overlaps with indoor cell coverage, signals from users in the macrocell coverage area can significantly interfere with users in the indoor cell coverage area. However, not all indoor cell coverage areas are affected by macrocell interference. To maximize cell rates, differentiated scheduling is required for users in different interference scenarios.

[0151] However, existing solutions for uplink and downlink traffic scheduling for indoor cells do not consider the differentiated impact of macrocellular coverage. If cell interference is high, interference avoidance or interference randomization scheduling is initiated for the entire cell. This fails to adaptively select the appropriate solution based on the interference exposure of each user within the cell. Interference randomization involves staggering the frequency domain resources of each cell's physical resource blocks (PRBs) according to specific principles during resource allocation to randomize interference between co-frequency neighboring cells. For example, staggering them modulo 3 based on the cell identifier (ID) results in different PRB starting positions for adjacent co-frequency neighboring cells, minimizing interference between co-frequency neighboring cells.

[0152] The key to interference randomization is that when allocating resources, the starting position of the PRB is different. This means that if some users are large-data users and hope to use full-bandwidth scheduling, they will be limited by the interference randomization processing and cannot meet the resource allocation requirements, or interference randomization will also cause scheduling resource fragmentation, reducing resource utilization efficiency. Turning off interference randomization has no effect on avoiding normal co-channel interference, which has a greater impact and limits cell capacity. Therefore, this application optimizes this solution by identifying the interfered state of the RRU and performing adaptive interference avoidance scheduling to improve resource utilization efficiency and overall cell capacity.

[0153] Figure 1 One of the flow diagrams of the interference avoidance scheduling method provided in the embodiment of the present application is applied to a network device (eg, a base station), such as Figure 1 As shown, the method includes the following steps:

[0154] Step 100: Determine the uplink interference state of each RRU in the multi-RRU cell based on the uplink interference noise IOT measurement result of the radio remote unit RRU, and / or determine the downlink interference state of each RRU in the multi-RRU cell based on the downlink rate-related indicator of the terminal or the channel state information interference measurement CSIIM interference value reported by the terminal; wherein the downlink rate-related indicator includes the downlink throughput, the downlink modulation and coding scheme MCS, or the channel quality indication CQI reported by the terminal.

[0155] Step 101: Perform interference avoidance scheduling based on the interference status of each RRU.

[0156] Specifically, for a cell composed of multiple RRUs (for example, a coverage cell adopts a multi-RRU cell merging networking method, with a total of N (N greater than 1) RRUs for cell merging), different RRUs are subject to different interference from co-frequency neighboring cells due to their different locations; at the same time, since the distribution of co-frequency neighboring cell interference in the frequency domain is also different, the interference in different frequency bands is different. In order to better schedule users (or terminals), this application determines the interference status of each RRU in the cell and performs interference avoidance scheduling for users based on the interference status of each RRU.

[0157] In this application, the interference state of an RRU includes the uplink interference state of the RRU and / or the downlink interference state of the RRU. This concept remains consistent throughout the text and will not be repeated hereafter. Since the interference experienced by uplink and downlink traffic channels is different, the uplink interference state and downlink interference state of the RRU can be determined separately.

[0158] For the uplink, the uplink interference noise (Interference over Thermal, IOT) measurement result of the RRU can be used to determine the uplink interference status of each RRU.

[0159] For the downlink, the downlink interference status of each RRU can be determined based on the terminal's downlink rate-related indicators or the Channel State Information Interference Measure (CSIIM) interference value reported by the terminal. The downlink rate-related indicators include downlink throughput, downlink modulation and coding scheme (MCS), or channel quality indicator (CQI) reported by the terminal.

[0160] The interference avoidance scheduling method provided in the embodiment of the present application determines the uplink interference state of each RRU in a multi-RRU cell based on the uplink IOT measurement result of the RRU, and / or determines the downlink interference state of each RRU in a multi-RRU cell based on the downlink rate-related indicator of the terminal or the CSIIM interference value reported by the terminal, and then performs interference avoidance scheduling on the terminal according to the interference state of each RRU, thereby avoiding the problems of low resource utilization efficiency and limited cell capacity caused by initiating interference avoidance or interference randomization scheduling for the entire cell, and can effectively improve resource utilization efficiency and overall cell capacity.

[0161] In some embodiments, determining the uplink interference state of each RRU in a multi-RRU cell based on an uplink interference noise IOT measurement result of a remote radio unit (RRU) includes:

[0162] The uplink interference state of the RRU is determined based on the uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

[0163] Specifically, for uplink, the uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods can be used to determine the uplink interference status of the RRU.

[0164] The acquisition of the IOT measurement results of the RRU can refer to the existing technical solutions. Here is an example of an optional implementation method: First, based on the uplink signal receiving power strength of each user on each RRU, the actual RRU position of the user is determined. If the uplink signal receiving power strength of the user on the RRU to which it belongs is higher than the given threshold, it is considered that the user has receiving power on the RRU and is treated as a scheduled user, otherwise it is treated as an unscheduled user. Then, the specific measurement method of IOT is: determine whether the RRU has a scheduled user at a certain frequency domain resource at a certain moment; if there is a scheduled user, the total receiving power at that moment and the frequency domain resource is subtracted from the receiving power of the scheduled user to obtain the IOT measurement result of the RRU at that moment and the frequency domain resource; if there is no scheduled user, the total receiving power at that moment and the frequency domain resource is used as the IOT measurement result of the RRU at that moment and the frequency domain resource.

[0165] The uplink IOT measurement result over the full bandwidth refers to the overall value of the uplink IOT measurement result over the entire bandwidth of the RRU. The network device can collect statistics on the uplink IOT measurement results over the full bandwidth of an RRU over one or multiple consecutive statistical periods to determine the uplink interference status of the RRU.

[0166] For example, the frequency domain resources of the entire bandwidth of the RRU can be divided into X segments (for example, 100M bandwidth can be divided into 50 segments, each segment is 2M). Statistics are collected for the uplink IOT measurement results of N RRUs over a period of time T on the X frequency domain resources. n,t,x , where n∈[1,N], t∈[1,T], x∈[1,X], the IOT n,t,x is the IOT result measured by the nth RRU at the xth frequency domain resource segment at time t. Then, the uplink IOT measurement result of the nth RRU on the full bandwidth at time t is IOT n,t It can be the average value of the uplink IOT measurement results of the X segments, or the overall result obtained by similar statistical means. Further, in the statistical period of time T, the uplink IOT measurement result IOT of the nth RRU full bandwidth is calculated. n , IOT n For IoT n,tThe statistical value within the time T, such as the statistical value obtained by various statistical methods such as averaging, smoothing, or finding the maximum value. In addition, the uplink IOT measurement result IOT of the nth RRU on the xth frequency domain resource segment within the statistical period of time T can also be calculated. n,x , IOT n,x For IoT n,t,x Statistical values ​​within time T, such as those obtained by various statistical methods such as averaging, smoothing, or finding the maximum value.

[0167] In some embodiments, determining the uplink interference state of the RRU based on uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes:

[0168] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU;

[0169] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

[0170] Specifically, in the present application, each threshold can be flexibly set as needed and is not specifically limited. When determining whether an RRU is an uplink high-interference RRU or an uplink low-interference RRU, the uplink IOT measurement result of the RRU over the full bandwidth in one or more consecutive statistical periods is compared with the first threshold. If the uplink IOT measurement result of the RRU over the full bandwidth in one or more consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU; if the uplink IOT measurement result of the RRU over the full bandwidth in one or more consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

[0171] In some embodiments, to ensure identification accuracy, a method of switching the interference state after multiple identifications can also be combined. For example, the statistics of each statistical period T (uplink IOT measurement results over the full bandwidth) correspond to one identification, and Num (Num is greater than 1, and the value of Num can be set as needed) identifications are performed continuously. If the statistics of the RRU identified Num times are all greater than or equal to the first threshold, the RRU is classified as an uplink high-interference RRU; if the statistics of the RRU identified Num times are all lower than the first threshold, the RRU is classified as an uplink low-interference RRU; if the statistics of the RRU identified Num times are not all greater than or equal to the first threshold, and the statistics of the RRU identified Num times are not all lower than the first threshold, the interference state of the RRU remains unchanged from the previous state.

[0172] In some embodiments, considering that the co-frequency neighboring cell interference may change over time, the identification result of the RRU's interference status needs to be regularly maintained and updated, for example, it can be started every half an hour, or the start time can be selected according to actual conditions.

[0173] Figure 2 An example diagram of multiple RRU cells provided in an embodiment of the present application is shown in FIG. Figure 2 As shown in the figure, assuming that 16 RRUs (R1, R2, ..., R16) form a cell, the peripheral RRUs (R1, R2, R3, R4, R5, R9, R13, R14, R15, R16, R8, and R12) in the figure are adjacent to other co-frequency cells. Therefore, these peripheral RRUs will be subject to more severe interference from co-frequency neighboring cells and are more likely to be uplink high-interference RRUs. Table 1 below lists the uplink IOT measurement results over the full bandwidth after one minute of statistics for each RRU.

[0174] Table 1 Uplink IOT measurement results of each RRU

[0175] RRU index R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 IoT 20 18 17 21 16 3 5 15 17 2 4 14 20 19 18 15

[0176] Assuming that the first threshold TH1 = 10, after comparing the IOT (uplink IOT measurement result) of each RRU with TH1, the index set of uplink high interference RRUs is screened out as {R1, R2, R3, R4, R5, R8, R9, R12, R13, R14, R15, R16}, and the other RRUs are uplink low interference RRUs.

[0177] In some embodiments, the method further comprises:

[0178] In the case where the RRU is an uplink high-interference RRU, the uplink high-interference frequency band and the uplink low-interference frequency band of the RRU are determined based on the uplink IOT measurement results of the RRU in each frequency domain segment;

[0179] The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

[0180] For example, assuming that the nth RRU is an uplink high interference RRU, the uplink IOT measurement results of the RRU in each frequency domain segment can also be calculated. n,xCompare with the second threshold to determine the high-interference frequency domain location of the RRU, and schedule the resources at this location differently. This is because the scheduling of service channels is dynamic, and the interference from neighboring cells on each part of the frequency domain resources is also quite different. In order to accurately determine the interference on each frequency domain resource, or to determine which frequency band of the high-interference RRU is subject to relatively strong interference, it is necessary to further measure the uplink IOT results of the RRU in each frequency domain segment. n,x If the uplink IOT measurement result of the RRU on a certain frequency band is greater than or equal to the second threshold, the frequency band is considered to be an uplink high-interference frequency band of the RRU. If the uplink IOT measurement result is less than the second threshold, the frequency band is considered to be an uplink low-interference frequency band of the RRU.

[0181] In some embodiments, determining the downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of the terminal or a channel state information interference measurement CSIIM interference value reported by the terminal includes:

[0182] Determine a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold;

[0183] The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU.

[0184] Specifically, the downlink interference state of the RRU can be determined based on the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU.

[0185] In some embodiments, the uplink good point terminal is any of the following:

[0186] (1) For a first terminal, a measurement quantity of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is the RRU with the largest measurement quantity of the uplink signal sent by the first terminal among all RRUs to which the first terminal belongs.

[0187] For example, the uplink signal may be an uplink sounding reference signal (SRS) or a physical uplink shared channel (PUSCH). The measurement quantity may be a reference signal received power (RSRP) or a measured signal-to-noise ratio (SNR). The measurement quantity of the uplink signal sent by the terminal measured by the strongest RRU to which the terminal belongs is compared with a seventh threshold. If the measurement quantity is greater than or equal to the seventh threshold, the terminal is determined to be an uplink good point terminal.

[0188] (2) For the second terminal, the difference between the measurement amount of the uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and the measurement amount of the uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to the eighth threshold; the strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs.

[0189] In this application, the strongest RRU to which the terminal belongs refers to the RRU with the best signal quality of the uplink signal sent by the receiving terminal, and the second strongest RRU to which the terminal belongs refers to the RRU with the second best signal quality of the uplink signal sent by the receiving terminal. The signal quality of the uplink signal can be determined based on the measurement amount of the uplink signal sent by the terminal measured by the RRU.

[0190] Compare the difference between the measurement amount of the uplink signal sent by the terminal measured by the strongest RRU to which the terminal belongs and the measurement amount of the uplink signal sent by the terminal measured by the second strongest RRU to which the terminal belongs. If the difference between the two is greater than or equal to the eighth threshold, it can be determined that the terminal is an uplink good point terminal.

[0191] (3) A third terminal: an uplink rate-related indicator of the third terminal is greater than or equal to a ninth threshold.

[0192] For example, if the uplink throughput (PUSCH throughput) of a terminal is greater than or equal to a given throughput threshold, the terminal can be determined to be an uplink good point terminal. Alternatively, if the uplink MCS of a terminal is greater than or equal to a given MCS threshold, the terminal can be determined to be an uplink good point terminal.

[0193] After determining the uplink good point terminals, further statistics are collected on the downlink throughput, MCS or CQI of these uplink good point terminals on the corresponding scheduling resources. If these indicators of a terminal are lower than a given threshold, it is considered that the RRU where the terminal is located has strong downlink interference on the corresponding scheduling resources, and the terminal is a downlink high interference terminal.

[0194] In another embodiment, the downlink interference degree of the RRU where the terminal is located can also be judged by the CSIIM interference value reported by the terminal. For example, the CSIIM interference values ​​reported by the terminals with better uplink are counted. If the CSIIM interference value reported by a terminal is greater than or equal to a given threshold, it is considered that there is strong interference in the downlink of the RRU where the terminal is located, and the terminal is a downlink high interference terminal.

[0195] In some embodiments, determining the downlink interference state of the RRU based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU includes:

[0196] If the proportion of downlink high-interference terminals among uplink good-point terminals in the RRU in one or more consecutive statistical periods is greater than or equal to the fifth threshold, the RRU is determined to be a downlink high-interference RRU;

[0197] If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or multiple consecutive statistical periods is less than a fifth threshold, the RRU is determined to be a downlink low-interference RRU.

[0198] For example, for a certain RRU, statistics are collected over a period of time T for all uplink good-point terminals of the RRU (assuming there are k uplink good-point terminals in total). Among them, m terminals are downlink high-interference terminals. The interference statistical ratio of the RRU is m / k. If the ratio m / k is greater than or equal to a given threshold, the RRU is considered to be a downlink high-interference RRU. Otherwise, if the ratio m / k is less than the given threshold, the RRU is considered to be a downlink low-interference RRU.

[0199] Similar to the uplink, in some embodiments, to ensure identification accuracy, a method of switching the interference state after multiple identifications can also be combined. For example, an RRU is determined to be a downlink high-interference RRU only if it is identified as a downlink high-interference RRU for Num consecutive statistical periods (Num is greater than 1, and the value of Num can be set as needed). An RRU is determined to be a downlink low-interference RRU only if it is identified as a downlink low-interference RRU for Num consecutive statistical periods. If the RRU is not identified as a downlink high-interference RRU for Num consecutive statistical periods, nor is it identified as a downlink low-interference RRU for Num consecutive statistical periods, the interference state of the RRU remains unchanged from the previous state.

[0200] In some embodiments, the method further comprises:

[0201] In the case of a downlink high-interference RRU, the downlink high-interference frequency band and downlink low-interference frequency band of the RRU are determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU in each frequency domain segment;

[0202] Among them, the downlink high interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

[0203] For example, for a downlink high-interference RRU, the interference situation on each scheduling resource (or frequency domain segment) can be counted. Assuming that there are a uplink good-point terminals on the i-th scheduling resource, of which there are b downlink high-interference terminals, then the interference statistical ratio of the RRU on the i-th scheduling resource is b / a. If the statistical ratio b / a is greater than or equal to a given threshold, the i-th scheduling resource is considered to be the downlink high-interference scheduling resource of the RRU, that is, the downlink high-interference frequency band. Conversely, if the statistical ratio b / a is less than the given threshold, the i-th scheduling resource is considered to be the downlink low-interference scheduling resource of the RRU, that is, the downlink low-interference frequency band.

[0204] In some embodiments, the method further comprises:

[0205] Send a set of CSIIM configuration information to the terminal;

[0206] A channel state information (CSI) report sent by a terminal is received, where the CSI report includes a CSIIM interference value measured based on a set of CSIIM configuration information.

[0207] Specifically, the current CSI reporting standard does not include CSIIM interference value reporting. In this application, the network device can configure a set of CSIIM configuration information (CSIIM configuration resources) for each terminal. The terminal measures and obtains the CSIIM interference value based on the CSIIM configuration information and reports it to the network device. The reported CSIIM interference value can be a broadband (full bandwidth) CSIIM interference value or a subband CSIIM interference value. The reporting method can be configured as required.

[0208] When a set of CSIIM configuration information is configured for the terminal, the terminal can report the CSIIM interference value by adding CSIIM interference measurement information (i.e., CSIIM interference value) in the CSI report. The reporting of the CSIIM interference value may include reporting of the broadband CSIIM interference value and the subband CSIIM interference value.

[0209] An example of the interference measurement information added to the CSIIM in the CSI report is as follows:

[0210]

[0211]

[0212]

[0213] In some embodiments, the method further comprises:

[0214] Send N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell;

[0215] A CSI report or a CSIIM report sent by a terminal is received, where the CSI report or the CSIIM report includes a highest CSIIM interference value obtained by measurement based on N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0216] Specifically, in some implementations, the network device may configure each terminal with the same number of sets of CSIIM configuration information as the number of RRUs included in the cell. The terminal measures multiple CSIIM interference values ​​based on the configured multiple sets of CSIIM configuration information, selects the highest CSIIM interference value and reports it to the network device, and simultaneously reports the CSIIM configuration information corresponding to the highest CSIIM interference value (i.e., the highest CSIIM interference value is measured based on this set of CSIIM configuration information). The reported CSIIM interference value may be a broadband (full bandwidth) CSIIM interference value or a subband CSIIM interference value, and the reporting method may be configured as required.

[0217] When multiple sets of CSIIM configuration information are configured for the terminal, the terminal may report the CSIIM interference value by adding CSIIM interference measurement information (i.e., CSIIM interference value) to the CSI report, or may specifically report the CSIIM interference value by using a newly defined CSIIM report. The reporting of the CSIIM interference value may include reporting of the wideband CSIIM interference value and the subband CSIIM interference value.

[0218] In some implementations, if the CSIIM configuration information corresponding to the CSIIM interference value selected for reporting is also the CSIIM configuration information used to measure CQI, the CSIIM interference value may be reported via a CSI report. If the CSIIM configuration information corresponding to the CSIIM interference value selected for reporting is not necessarily the same as the CSIIM configuration information used to measure CQI, the CSIIM interference value may be specifically reported via a newly defined CSIIM report.

[0219] An example of specifically reporting CSIIM interference values ​​through the newly defined CSIIM report is as follows:

[0220]

[0221]

[0222]

[0223]

[0224] In some embodiments, performing interference avoidance scheduling based on the interference status of each RRU includes at least one of the following:

[0225] (1) When a terminal under a high-interference RRU is scheduled, the low-interference frequency band of the high-interference RRU is selected as the scheduling resource for the scheduled terminal under the high-interference RRU.

[0226] In the present application, when interference avoidance scheduling is performed, uplink service scheduling is performed based on the uplink interference state of the RRU (in this case, high-interference RRU refers to uplink high-interference RRU, low-interference RRU refers to uplink low-interference RRU, high-interference frequency band refers to uplink high-interference frequency band, and low-interference frequency band refers to uplink low-interference frequency band), and downlink service scheduling is performed based on the downlink interference state of the RRU (in this case, high-interference RRU refers to downlink high-interference RRU, low-interference RRU refers to downlink low-interference RRU, high-interference frequency band refers to downlink high-interference frequency band, and low-interference frequency band refers to downlink low-interference frequency band).

[0227] In some implementations, during the scheduling process, the network device may assign a scheduling priority to each terminal based on characteristics such as service type and data volume, and perform scheduling sorting according to the scheduling priority. After the terminal is scheduled, it is necessary to determine the scheduling resources of the terminal based on the interference situation on each frequency domain resource. For example, when a terminal under a high-interference RRU is scheduled, the low-interference frequency band of the high-interference RRU is selected (the method for determining the low-interference frequency band can be referred to the previous text and will not be repeated here) as the scheduling resource of the scheduled terminal under the high-interference RRU. That is, during the scheduling process, the frequency domain resources with relatively low interference are selected for scheduling. For low-interference RRUs, interference randomization scheduling can be disabled when scheduling terminals under the low-interference RRU.

[0228] (2) The scheduling priorities of the terminals under each RRU are adjusted based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of the RRU to which they belong from small to large.

[0229] For example, the interference weight may be an IOT measurement result, a CSIIM interference value, etc. In some implementations, a scheduling strategy for maximizing cell capacity is adopted. The network device may, based on the RRU information to which each terminal belongs, reversely add the interference weight of the RRU to which the terminal belongs to the scheduling priority, so that an RRU with a larger interference weight has a lower scheduling priority for its subordinate terminals, and an RRU with a smaller interference weight has a higher scheduling priority for its subordinate terminals, and the subordinate terminals may be scheduled first, thereby scheduling terminals under the low-interference RRU as much as possible and improving the overall cell capacity.

[0230] (3) For multi-terminal reuse scenarios, terminals under low-interference RRUs are given priority for pairing.

[0231] Multi-terminal multiplexing (or multi-user multiplexing) refers to scenarios where multiple terminals share the same communication resources (such as frequency, time, or spatial resources). During scheduling, users assigned to low-interference RRUs can be prioritized when pairing multiple users to reduce interference between multiple users. For users assigned to high-interference RRUs, more complex interference mitigation algorithms can be employed.

[0232] Figure 3 The second flow chart of the interference avoidance scheduling method provided in the embodiment of the present application is applied to a terminal, such as Figure 3 As shown, the method includes the following steps:

[0233] Step 300: Receive one or N sets of channel state information interference measurement (CSIIM) configuration information sent by a network device.

[0234] Step 301: After measuring the CSIIM interference value based on the CSIIM configuration information, the CSIIM interference value is reported to the network device. The CSIIM interference value is used by the network device to determine the downlink interference status of each RRU in a multi-radio remote unit (RRU) cell and perform interference avoidance scheduling based on the interference status of each RRU. N is equal to the number of RRUs in the multi-RRU cell.

[0235] In some embodiments, reporting the CSIIM interference value to the network device includes:

[0236] In the case of receiving a set of CSIIM configuration information sent by the network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or,

[0237] When receiving N sets of CSIIM configuration information sent by the network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0238] The methods provided in the various embodiments of this application are based on the same application concept, so the implementation of each method can refer to each other, and the repeated parts will not be repeated.

[0239] The methods and devices provided in the various embodiments of the present application are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0240] Figure 4 A schematic diagram of the structure of the network device provided in the embodiment of the present application is shown as follows: Figure 4 As shown, the network device includes a memory 420, a transceiver 410 and a processor 400; wherein the processor 400 and the memory 420 may also be physically arranged separately.

[0241] The memory 420 is used to store computer programs; the transceiver 410 is used to send and receive data under the control of the processor 400.

[0242] Specifically, the transceiver 410 is configured to receive and send data under the control of the processor 400 .

[0243] Among them, Figure 4 In the embodiment of the present invention, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 400 and memory represented by memory 420. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described in this application. The bus interface provides an interface. The transceiver 410 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0244] The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.

[0245] The processor 400 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0246] The processor 400 calls the computer program stored in the memory 420 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example: determining the uplink interference state of each RRU in the multi-RRU cell based on the uplink interference noise IOT measurement result of the radio remote unit RRU, and / or determining the downlink interference state of each RRU in the multi-RRU cell based on the downlink rate-related indicator of the terminal or the channel state information interference measurement CSIIM interference value reported by the terminal; wherein the downlink rate-related indicator includes the downlink throughput, the downlink modulation and coding scheme MCS or the channel quality indication CQI reported by the terminal; and performing interference avoidance scheduling based on the interference state of each RRU.

[0247] In some embodiments, determining the uplink interference status of each RRU in a multi-RRU cell based on an uplink interference noise IOT measurement result of a remote radio unit (RRU) includes:

[0248] The uplink interference state of the RRU is determined based on the uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

[0249] In some embodiments, determining the uplink interference state of the RRU based on uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes:

[0250] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU;

[0251] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

[0252] In some embodiments, the method further comprises:

[0253] In the case where the RRU is an uplink high-interference RRU, the uplink high-interference frequency band and the uplink low-interference frequency band of the RRU are determined based on the uplink IOT measurement results of the RRU in each frequency domain segment;

[0254] The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

[0255] In some embodiments, determining the downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of the terminal or a channel state information interference measurement CSIIM interference value reported by the terminal includes:

[0256] Determine a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold;

[0257] The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU.

[0258] In some embodiments, determining the downlink interference state of the RRU based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU includes:

[0259] If the proportion of downlink high-interference terminals among uplink good-point terminals in the RRU in one or more consecutive statistical periods is greater than or equal to the fifth threshold, the RRU is determined to be a downlink high-interference RRU;

[0260] If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or multiple consecutive statistical periods is less than a fifth threshold, the RRU is determined to be a downlink low-interference RRU.

[0261] In some embodiments, the method further comprises:

[0262] In the case of a downlink high-interference RRU, the downlink high-interference frequency band and downlink low-interference frequency band of the RRU are determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU in each frequency domain segment;

[0263] Among them, the downlink high interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

[0264] In some embodiments, the method further comprises:

[0265] Send a set of CSIIM configuration information to the terminal;

[0266] A channel state information CSI report sent by a receiving terminal is received, where the CSI report includes a CSIIM interference value measured based on a set of CSIIM configuration information.

[0267] In some embodiments, the method further comprises:

[0268] Send N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell;

[0269] A CSI report or a CSIIM report sent by a terminal is received, where the CSI report or the CSIIM report includes a highest CSIIM interference value obtained by measurement based on N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0270] In some embodiments, the uplink good point terminal is any of the following:

[0271] For a first terminal, a measurement amount of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is an RRU with the largest measurement amount of an uplink signal sent by the first terminal among all RRUs to which the first terminal belongs; or

[0272] For the second terminal, the difference between the measurement amount of the uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and the measurement amount of the uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to the eighth threshold; the strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; or

[0273] The third terminal has an uplink rate-related indicator greater than or equal to a ninth threshold.

[0274] In some embodiments, performing interference avoidance scheduling based on the interference status of each RRU includes at least one of the following:

[0275] When a terminal under a high-interference RRU is scheduled, the low-interference frequency band of the high-interference RRU is selected as the scheduling resource for the scheduled terminal under the high-interference RRU;

[0276] Adjust the scheduling priority of the terminals under each RRU based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of their respective RRUs from small to large;

[0277] In scenarios where multiple terminals are reused, terminals under low-interference RRUs are given priority for pairing.

[0278] Figure 5 A schematic diagram of the structure of the terminal provided in the embodiment of the present application is shown in FIG. Figure 5 As shown, the terminal includes a memory 520, a transceiver 510 and a processor 500; wherein the processor 500 and the memory 520 may also be physically arranged separately.

[0279] The memory 520 is used to store computer programs; the transceiver 510 is used to send and receive data under the control of the processor 500.

[0280] Specifically, the transceiver 510 is configured to receive and send data under the control of the processor 500 .

[0281] Among them, Figure 5 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 500 and memory represented by memory 520, which are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described in this application. The bus interface provides an interface. The transceiver 510 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and other transmission media. For different user devices, the user interface 530 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0282] The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.

[0283] The processor 500 may be a CPU, an ASIC, an FPGA, or a CPLD, and the processor may also adopt a multi-core architecture.

[0284] The processor 500 calls the computer program stored in the memory 520 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example: receiving one or N sets of channel state information interference measurement CSIIM configuration information sent by the network device; after measuring the CSIIM interference value based on the CSIIM configuration information, reporting the CSIIM interference value to the network device, the CSIIM interference value is used by the network device to determine the downlink interference status of each RRU in the multi-radio remote unit RRU cell, and perform interference avoidance scheduling based on the interference status of each RRU; N is equal to the number of RRUs in the multi-RRU cell.

[0285] In some embodiments, reporting the CSIIM interference value to the network device includes:

[0286] In the case of receiving a set of CSIIM configuration information sent by the network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or,

[0287] When receiving N sets of CSIIM configuration information sent by the network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0288] It should be noted here that the above-mentioned network equipment and terminal provided in the embodiments of the present application can implement all the method steps implemented in the above-mentioned method embodiments and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those in the method embodiments will not be described in detail here.

[0289] Figure 6 This is one of the structural diagrams of the interference avoidance scheduling device provided in the embodiment of the present application, such as Figure 6 As shown, the device includes:

[0290] The determining unit 600 is configured to determine the uplink interference state of each RRU in the multi-RRU cell based on the uplink interference noise (IOT) measurement result of the remote radio unit (RRU), and / or determine the downlink interference state of each RRU in the multi-RRU cell based on a downlink rate-related indicator of the terminal or a channel state information interference measurement (CSIIM) interference value reported by the terminal; wherein the downlink rate-related indicator includes a downlink throughput, a downlink modulation and coding scheme (MCS), or a channel quality indicator (CQI) reported by the terminal;

[0291] The scheduling unit 610 is configured to perform interference avoidance scheduling based on the interference status of each RRU.

[0292] In some embodiments, determining the uplink interference state of each RRU in a multi-RRU cell based on an uplink interference noise IOT measurement result of a remote radio unit (RRU) includes:

[0293] The uplink interference state of the RRU is determined based on the uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

[0294] In some embodiments, determining the uplink interference state of the RRU based on uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes:

[0295] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU;

[0296] If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

[0297] In some embodiments, the determining unit 600 is further configured to:

[0298] In the case where the RRU is an uplink high-interference RRU, the uplink high-interference frequency band and the uplink low-interference frequency band of the RRU are determined based on the uplink IOT measurement results of the RRU in each frequency domain segment;

[0299] The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

[0300] In some embodiments, determining the downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of the terminal or a channel state information interference measurement CSIIM interference value reported by the terminal includes:

[0301] Determine a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold;

[0302] The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU.

[0303] In some embodiments, determining the downlink interference state of the RRU based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU includes:

[0304] If the proportion of downlink high-interference terminals among uplink good-point terminals in the RRU in one or more consecutive statistical periods is greater than or equal to the fifth threshold, the RRU is determined to be a downlink high-interference RRU;

[0305] If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or multiple consecutive statistical periods is less than a fifth threshold, the RRU is determined to be a downlink low-interference RRU.

[0306] In some embodiments, the determining unit 600 is further configured to:

[0307] In the case of a downlink high-interference RRU, the downlink high-interference frequency band and downlink low-interference frequency band of the RRU are determined based on the proportion of downlink high-interference terminals among the uplink good-point terminals of the RRU in each frequency domain segment;

[0308] Among them, the downlink high interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is the frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

[0309] In some embodiments, the apparatus further comprises:

[0310] A first sending unit, configured to send a set of CSIIM configuration information to a terminal;

[0311] The first receiving unit is configured to receive a channel state information CSI report sent by a terminal, where the CSI report includes a CSIIM interference value measured based on a set of CSIIM configuration information.

[0312] In some embodiments, the apparatus further comprises:

[0313] The second sending unit is configured to send N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell;

[0314] The second receiving unit is configured to receive a CSI report or a CSIIM report sent by the terminal, where the CSI report or the CSIIM report includes a maximum CSIIM interference value measured based on N sets of CSIIM configuration information and CSIIM configuration information corresponding to the maximum CSIIM interference value.

[0315] In some embodiments, the uplink good point terminal is any of the following:

[0316] For a first terminal, a measurement amount of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is an RRU with the largest measurement amount of an uplink signal sent by the first terminal among all RRUs to which the first terminal belongs; or

[0317] For the second terminal, the difference between the measurement amount of the uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and the measurement amount of the uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to the eighth threshold; the strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all the RRUs to which the second terminal belongs; or

[0318] The third terminal has an uplink rate-related indicator greater than or equal to a ninth threshold.

[0319] In some embodiments, performing interference avoidance scheduling based on the interference status of each RRU includes at least one of the following:

[0320] When a terminal under a high-interference RRU is scheduled, the low-interference frequency band of the high-interference RRU is selected as the scheduling resource for the scheduled terminal under the high-interference RRU;

[0321] Adjust the scheduling priority of the terminals under each RRU based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of their respective RRUs from small to large;

[0322] In scenarios where multiple terminals are reused, terminals under low-interference RRUs are given priority for pairing.

[0323] Figure 7 The second structural diagram of the interference avoidance scheduling device provided in the embodiment of the present application is as follows Figure 7 As shown, the device includes:

[0324] The third receiving unit 700 is configured to receive one or N sets of channel state information interference measurement (CSIIM) configuration information sent by a network device;

[0325] A reporting unit 710 is configured to measure a CSIIM interference value based on the CSIIM configuration information and report the CSIIM interference value to a network device. The CSIIM interference value is used by the network device to determine the downlink interference status of each RRU in a multi-radio remote unit (RRU) cell and perform interference avoidance scheduling based on the interference status of each RRU.

[0326] N is equal to the number of RRUs in a multi-RRU cell.

[0327] In some embodiments, reporting the CSIIM interference value to the network device includes:

[0328] In the case of receiving a set of CSIIM configuration information sent by the network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or,

[0329] When receiving N sets of CSIIM configuration information sent by the network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

[0330] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0331] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0332] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0333] On the other hand, an embodiment of the present application further provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable a processor to execute the interference avoidance scheduling method provided by the above-mentioned embodiments on the network device side.

[0334] It should be noted here that the non-transient readable storage medium provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0335] On the other hand, an embodiment of the present application also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the interference avoidance scheduling method provided by the above-mentioned terminal-side embodiments.

[0336] It should be noted here that the non-transitory readable storage medium provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned terminal-side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0337] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NANDFLASH), solid-state drives (SSDs)), etc.

[0338] The technical solution provided in the embodiments of the present application can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, etc. These various systems include terminal devices and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0339] The terminal involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present application.

[0340] The network device involved in the embodiments of the present application may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named otherwise. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., and is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0341] Network devices and terminals can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO. It can also be diversity transmission, precoded transmission, or beamforming transmission.

[0342] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0343] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0344] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce an article of manufacture comprising an instruction device that implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0345] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0346] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. An interference avoidance scheduling method, characterized in that: Applicable to network equipment, including: Determining the uplink interference state of each RRU in the multi-RRU cell based on the uplink interference noise IOT measurement result of the remote radio unit RRU, and / or determining the downlink interference state of each RRU in the multi-RRU cell based on the downlink rate-related indicator of the terminal or the channel state information interference measurement CSIIM interference value reported by the terminal; wherein the downlink rate-related indicator includes downlink throughput, downlink modulation and coding scheme MCS, or channel quality indicator CQI reported by the terminal; Interference avoidance scheduling is performed based on the interference status of each RRU.

2. The interference avoidance scheduling method according to claim 1, characterized in that: The determining the uplink interference state of each RRU in the multi-RRU cell based on the uplink interference noise IOT measurement result of the remote radio unit RRU includes: The uplink interference state of the RRU is determined based on uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

3. The interference avoidance scheduling method according to claim 2, characterized in that: The determining the uplink interference state of the RRU based on the uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes: If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU; If the uplink IOT measurement result of the RRU on the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

4. The interference avoidance scheduling method according to claim 3, characterized in that: The method further comprises: In the case where the RRU is an uplink high-interference RRU, determining an uplink high-interference frequency band and an uplink low-interference frequency band of the RRU based on the uplink IOT measurement results of the RRU on each frequency domain segment; The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

5. The interference avoidance scheduling method according to claim 1, characterized in that: The determining of the downlink interference state of each RRU in the multi-RRU cell based on the downlink rate-related indicator of the terminal or the channel state information interference measurement CSIIM interference value reported by the terminal includes: Determining a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold; The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU.

6. The interference avoidance scheduling method according to claim 5, characterized in that: The determining of the downlink interference state of the RRU based on the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU includes: If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or more consecutive statistical periods is greater than or equal to a fifth threshold, the RRU is determined to be a downlink high-interference RRU; If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or more consecutive statistical periods is less than the fifth threshold, the RRU is determined to be a downlink low-interference RRU.

7. The interference avoidance scheduling method according to claim 6, characterized in that: The method further comprises: In the case where the RRU is a downlink high-interference RRU, determining a downlink high-interference frequency band and a downlink low-interference frequency band of the RRU based on a proportion of downlink high-interference terminals among uplink good-point terminals of the RRU in each frequency domain segment; Among them, the downlink high interference frequency band is a frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is a frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

8. The interference avoidance scheduling method according to any one of claims 5 to 7, characterized in that: The method further comprises: Send a set of CSIIM configuration information to the terminal; A channel state information (CSI) report is received from the terminal, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information.

9. The interference avoidance scheduling method according to any one of claims 5 to 7, characterized in that: The method further comprises: Sending N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell; A CSI report or a CSIIM report sent by the terminal is received, where the CSI report or the CSIIM report includes a highest CSIIM interference value obtained by measurement based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

10. The interference avoidance scheduling method according to any one of claims 5 to 7, characterized in that: The uplink good point terminal is any of the following: For a first terminal, a measurement amount of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is an RRU with the largest measurement amount of an uplink signal sent by the first terminal among all RRUs to which the first terminal belongs; or For a second terminal, a difference between a measurement amount of an uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and a measurement amount of an uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to an eighth threshold; The strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all RRUs to which the second terminal belongs; or A third terminal, wherein an uplink rate-related indicator of the third terminal is greater than or equal to a ninth threshold.

11. The interference avoidance scheduling method according to claim 3 or 6, characterized in that: The performing interference avoidance scheduling based on the interference state of each RRU includes at least one of the following: When a terminal under a high-interference RRU is scheduled, select a low-interference frequency band of the high-interference RRU as a scheduling resource for the scheduled terminal under the high-interference RRU; Adjusting the scheduling priorities of the terminals under each RRU based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of the RRU to which they belong from small to large; In scenarios where multiple terminals are reused, terminals under low-interference RRUs are given priority for pairing.

12. An interference avoidance scheduling method, characterized in that: Applied to terminals, including: Receive one or N sets of channel state information interference measurement (CSIIM) configuration information sent by a network device; After measuring a CSIIM interference value based on the CSIIM configuration information, reporting the CSIIM interference value to the network device, wherein the CSIIM interference value is used by the network device to determine a downlink interference state of each RRU in a multi-radio remote unit (RRU) cell, and perform interference avoidance scheduling based on the interference state of each RRU; The N is equal to the number of RRUs in the multi-RRU cell.

13. The interference avoidance scheduling method according to claim 12, characterized in that: The reporting the CSIIM interference value to the network device includes: In the case of receiving a set of CSIIM configuration information sent by a network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or In the case of receiving N sets of CSIIM configuration information sent by a network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

14. A network device, characterized in that: Including memory, transceiver, processor; a memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Determining the uplink interference state of each RRU in the multi-RRU cell based on the uplink interference noise IOT measurement result of the remote radio unit RRU, and / or determining the downlink interference state of each RRU in the multi-RRU cell based on the downlink rate-related indicator of the terminal or the channel state information interference measurement CSIIM interference value reported by the terminal; wherein the downlink rate-related indicator includes downlink throughput, downlink modulation and coding scheme MCS, or channel quality indicator CQI reported by the terminal; Interference avoidance scheduling is performed based on the interference status of each RRU.

15. The network device according to claim 14, wherein: The determining the uplink interference state of each RRU in the multi-RRU cell based on the uplink interference noise IOT measurement result of the remote radio unit RRU includes: The uplink interference state of the RRU is determined based on uplink IOT measurement results of the RRU over the full bandwidth in one or multiple consecutive statistical periods.

16. The network device according to claim 15, characterized in that The determining the uplink interference state of the RRU based on the uplink IOT measurement results of the RRU over the full bandwidth in one or more consecutive statistical periods includes: If the uplink IOT measurement result of the RRU over the full bandwidth in one or multiple consecutive statistical periods is greater than or equal to the first threshold, the RRU is determined to be an uplink high-interference RRU; If the uplink IOT measurement result of the RRU on the full bandwidth in one or multiple consecutive statistical periods is less than the first threshold, the RRU is determined to be an uplink low-interference RRU.

17. The network device according to claim 16, wherein: The operations further include: In the case where the RRU is an uplink high-interference RRU, determining an uplink high-interference frequency band and an uplink low-interference frequency band of the RRU based on the uplink IOT measurement results of the RRU on each frequency domain segment; The uplink high interference frequency band is a frequency domain segment in which the uplink IOT measurement result is greater than or equal to the second threshold, and the uplink low interference frequency band is a frequency domain segment in which the uplink IOT measurement result is less than the second threshold.

18. The network device according to claim 14, wherein: The determining of the downlink interference state of each RRU in the multi-RRU cell based on the downlink rate-related indicator of the terminal or the channel state information interference measurement CSIIM interference value reported by the terminal includes: Determining a downlink high-interference terminal based on a downlink rate-related indicator of the terminal or a CSIIM interference value reported by the terminal; wherein the downlink high-interference terminal is a terminal whose downlink rate-related indicator is less than a third threshold, or a terminal whose reported CSIIM interference value is greater than or equal to a fourth threshold; The downlink interference state of the RRU is determined based on the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU.

19. The network device according to claim 18, wherein: The determining of the downlink interference state of the RRU based on the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU includes: If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or more consecutive statistical periods is greater than or equal to a fifth threshold, the RRU is determined to be a downlink high-interference RRU; If the proportion of downlink high-interference terminals in the uplink good-point terminals of the RRU in one or more consecutive statistical periods is less than the fifth threshold, the RRU is determined to be a downlink low-interference RRU.

20. The network device according to claim 19, wherein: The operations further include: In the case where the RRU is a downlink high-interference RRU, determining a downlink high-interference frequency band and a downlink low-interference frequency band of the RRU based on a proportion of downlink high-interference terminals among uplink good-point terminals of the RRU in each frequency domain segment; Among them, the downlink high interference frequency band is a frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is greater than or equal to the sixth threshold, and the downlink low interference frequency band is a frequency domain segment in which the proportion of downlink high interference terminals among uplink good point terminals is less than the sixth threshold.

21. The network device according to any one of claims 18 to 20, characterized in that: The operations further include: Send a set of CSIIM configuration information to the terminal; A channel state information (CSI) report is received from the terminal, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information.

22. The network device according to any one of claims 18 to 20, characterized in that: The operations further include: Sending N sets of CSIIM configuration information to the terminal, where N is equal to the number of RRUs in the multi-RRU cell; A CSI report or a CSIIM report sent by the terminal is received, where the CSI report or the CSIIM report includes a highest CSIIM interference value obtained by measurement based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

23. The network device according to any one of claims 18 to 20, characterized in that: The uplink good point terminal is any of the following: For a first terminal, a measurement amount of an uplink signal sent by the first terminal measured by the strongest RRU to which the first terminal belongs is greater than or equal to a seventh threshold; the strongest RRU to which the first terminal belongs is an RRU with the largest measurement amount of an uplink signal sent by the first terminal among all RRUs to which the first terminal belongs; or For a second terminal, a difference between a measurement amount of an uplink signal sent by the second terminal measured by the strongest RRU to which the second terminal belongs and a measurement amount of an uplink signal sent by the second terminal measured by the second strongest RRU to which the second terminal belongs is greater than or equal to an eighth threshold; The strongest RRU to which the second terminal belongs is the RRU with the largest measurement amount of the uplink signal sent by the second terminal among all RRUs to which the second terminal belongs; the second strongest RRU to which the second terminal belongs is the RRU with the second largest measurement amount of the uplink signal sent by the second terminal among all RRUs to which the second terminal belongs; or A third terminal, wherein an uplink rate-related indicator of the third terminal is greater than or equal to a ninth threshold.

24. The network device according to claim 16 or 19, characterized in that: The performing interference avoidance scheduling based on the interference state of each RRU includes at least one of the following: When a terminal under a high-interference RRU is scheduled, select a low-interference frequency band of the high-interference RRU as a scheduling resource for the scheduled terminal under the high-interference RRU; Adjusting the scheduling priorities of the terminals under each RRU based on the interference weight of each RRU, so that after the adjustment, the terminals are scheduled in the order of the interference weight of the RRU to which they belong from small to large; In scenarios where multiple terminals are reused, terminals under low-interference RRUs are given priority for pairing.

25. A terminal, characterized in that: Including memory, transceiver, processor; A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receive one or N sets of channel state information interference measurement (CSIIM) configuration information sent by a network device; After measuring a CSIIM interference value based on the CSIIM configuration information, reporting the CSIIM interference value to the network device, wherein the CSIIM interference value is used by the network device to determine a downlink interference state of each RRU in a multi-radio remote unit (RRU) cell, and perform interference avoidance scheduling based on the interference state of each RRU; The N is equal to the number of RRUs in the multi-RRU cell.

26. The terminal according to claim 25, characterized in that The reporting the CSIIM interference value to the network device includes: In the case of receiving a set of CSIIM configuration information sent by a network device, sending a channel state information CSI report to the network device, where the CSI report includes a CSIIM interference value measured based on the set of CSIIM configuration information; or In the case of receiving N sets of CSIIM configuration information sent by a network device, a CSI report or a CSIIM report is sent to the network device, where the CSI report or the CSIIM report includes a highest CSIIM interference value measured based on the N sets of CSIIM configuration information and CSIIM configuration information corresponding to the highest CSIIM interference value.

27. An interference avoidance scheduling device, characterized in that: include: a determining unit, configured to determine an uplink interference state of each RRU in a multi-RRU cell based on an uplink interference noise (IOT) measurement result of a remote radio unit (RRU), and / or determine a downlink interference state of each RRU in a multi-RRU cell based on a downlink rate-related indicator of a terminal or a channel state information interference measurement (CSIIM) interference value reported by the terminal; wherein the downlink rate-related indicator includes a downlink throughput, a downlink modulation and coding scheme (MCS), or a channel quality indicator (CQI) reported by the terminal; The scheduling unit is configured to perform interference avoidance scheduling based on the interference status of each RRU.

28. An interference avoidance scheduling device, characterized in that: include: A third receiving unit is configured to receive one or N sets of channel state information interference measurement CSIIM configuration information sent by a network device; a reporting unit, configured to measure a CSIIM interference value based on the CSIIM configuration information and report the CSIIM interference value to the network device, wherein the CSIIM interference value is used by the network device to determine a downlink interference state of each RRU in a multi-radio remote unit (RRU) cell, and perform interference avoidance scheduling based on the interference state of each RRU; The N is equal to the number of RRUs in the multi-RRU cell.

29. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 11.

30. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 12 to 13.

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