CN113438669B - Interference processing method, device and equipment - Google Patents

Interference processing method, device and equipment Download PDF

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CN113438669B
CN113438669B CN202110703720.4A CN202110703720A CN113438669B CN 113438669 B CN113438669 B CN 113438669B CN 202110703720 A CN202110703720 A CN 202110703720A CN 113438669 B CN113438669 B CN 113438669B
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pusch
time slot
interference
interfered
threshold
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CN113438669A (en
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刘英男
张涛
李福昌
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Abstract

The invention discloses an interference processing method, an interference processing device and interference processing equipment, relates to the technical field of communication, and is used for reducing cross link interference of a Physical Uplink Shared Channel (PUSCH). The method comprises the following steps: determining an interfered time slot interfered by a cross link from a plurality of uplink time slots; adjusting the configuration information of the PUSCH of the first User Equipment (UE) based on the interference value of the interfered time slot and a preset channel configuration parameter to obtain adjusted configuration information; the interfered time slot is used for allocating time slot resources to a PUSCH of the first UE; the configuration information comprises the power of the received power spectrum of the PUSCH and/or the Modulation and Coding Strategy (MCS) level of the PUSCH.

Description

Interference processing method, device and equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an interference processing method, apparatus, and device.
Background
In a Time Division Duplex (TDD) system, there are diversified network application scenarios. In order to adapt to diversified network application scenarios, different time-frequency resources need to be configured for access network devices in different network application scenarios. However, if time-frequency resources configured differently between two adjacent access network devices are used, severe cross interference between the adjacent access network devices may be caused.
At present, the method for processing the serious cross interference between the adjacent access network devices mainly comprises: physical isolation or closed interference slot method. However, physical isolation has a large scenario limitation in real-world implementation; the method for closing the interference time slot can limit the downlink capacity of the access network equipment covering the cell, and reduces the resource utilization rate.
Disclosure of Invention
The embodiment of the invention provides an interference processing method, an interference processing device and interference processing equipment, which are used for reducing cross link interference of a PUSCH (physical uplink shared channel).
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an interference processing method is provided, which is applied to an access network device, and includes: determining an interfered time slot interfered by a cross link from a plurality of uplink time slots; adjusting the configuration information of the PUSCH of the first User Equipment (UE) based on the interference value of the interfered time slot and a preset channel configuration parameter to obtain adjusted configuration information; the interfered time slot is used for allocating time slot resources to a PUSCH of the first UE; the configuration information comprises the power of the received power spectrum of the PUSCH and/or the modulation and coding strategy MCS level of the PUSCH.
In a second aspect, an interference processing apparatus is provided, which is applied to an access network device, and includes a determining unit and an adjusting unit; a determining unit, configured to determine an interfered timeslot interfered by a cross link from a plurality of uplink timeslots; an adjusting unit, configured to adjust configuration information of a PUSCH of a first user equipment UE based on an interference value of an interfered timeslot and a preset channel configuration parameter to obtain adjusted configuration information; the interfered time slot is used for allocating time slot resources to a PUSCH of the first UE; the configuration information comprises the power of the received power spectrum of the PUSCH and/or the Modulation and Coding Strategy (MCS) level of the PUSCH.
In a third aspect, there is provided a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the interference handling method of the first aspect.
In a fourth aspect, an access network device is provided, including: a processor and a memory. Wherein the memory is used for storing one or more programs, the one or more programs comprising computer executable instructions, and when the access network equipment runs, the processor executes the computer executable instructions stored by the memory to make the access network equipment execute the interference processing method according to the first aspect.
In a fifth aspect, a computer program product is provided comprising instructions which, when run on a computer, cause the computer to perform the interference handling method of the first aspect.
According to the interference processing method and device provided by the embodiment of the invention, under the condition that the interference time slot exists in the uplink time slot, the configuration information of the PUSCH scheduling performed by the UE in the occupied interference time slot can be adjusted according to the interference value of the interference time slot and the channel configuration parameter. For example, the transmission power of the received power spectrum of the PUSCH may be adjusted, or the MCS level of the PUSCH may be adjusted, so that the influence of the interference value of the interfered slot on the PUSCH can be relatively reduced.
Drawings
Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic diagram of a hardware structure of an access network device according to an embodiment of the present application;
fig. 3 is a schematic hardware structure diagram of another access network device according to an embodiment of the present application;
fig. 4 is a first flowchart illustrating an interference processing method according to an embodiment of the present disclosure;
fig. 5 is a second flowchart illustrating an interference processing method according to an embodiment of the present application;
fig. 6 is a third schematic flowchart of an interference processing method according to an embodiment of the present application;
fig. 7 is a fourth schematic flowchart of an interference processing method according to an embodiment of the present application;
fig. 8 is a fifth flowchart illustrating an interference processing method according to an embodiment of the present application;
fig. 9 is a sixth schematic flowchart of an interference processing method according to an embodiment of the present application;
fig. 10 is a seventh flowchart illustrating an interference processing method according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of an interference processing apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, "/" means "or" unless otherwise specified, for example, a/B may mean a or B. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Further, "at least one" or "a plurality" means two or more. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily limit the difference.
The interference processing method provided by the embodiment of the invention is suitable for the communication system 10. Fig. 1 shows one configuration of the communication system 10. As shown in fig. 1, the communication system 10 includes: an access network device 11 and a plurality of User Equipments (UEs) 12.
The plurality of user equipments 12 are located in a cell covered by the access network equipment 11, and the access network equipment 11 is communicatively connected to the plurality of user equipments 12 through a communication frequency band.
In practical applications, the access network device 11 may connect a plurality of user equipments.
It should be noted that fig. 1 is only an exemplary framework diagram, the number of nodes included in fig. 1 is not limited, and other nodes may be included besides the functional nodes shown in fig. 1, such as: core network devices, gateway devices, application servers, etc., without limitation.
The access network device 11 in the embodiment of the present invention is mainly used for implementing the functions of resource scheduling, radio resource management, radio access control, etc. of the user equipment. Specifically, the Access network device 11 may be an Access Point (AP), an evolved Node Base Station (eNB), or a Base Station in the fifth generation Communication technology (5 g) network, which is not limited in this embodiment of the present invention.
Alternatively, user device 12 in FIG. 1 may refer to a device that provides voice and/or data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. User equipment may communicate with one or more core networks via a Radio Access Network (RAN). The user equipment may be mobile user equipment such as mobile telephones (otherwise known as "cellular" telephones) and computers having mobile user equipment, or may be portable, pocket, hand-held, computer-included or vehicle-mounted mobile devices that exchange language and/or data with a radio access network, for example, cell phones, tablets, laptops, netbooks, personal Digital Assistants (PDAs).
The access network device 11 and the plurality of user equipment 12 in fig. 1 comprise elements comprised by the interference processing shown in fig. 2. The hardware structures of the access network device 11 and the plurality of user devices 12 in fig. 1 will be described below by taking the interference processing apparatus shown in fig. 2 as an example.
Fig. 2 shows a schematic diagram of a hardware structure of an access network device according to an embodiment of the present invention. As shown in fig. 2, the access network device includes a processor 21, a memory 22, a communication interface 23, and a bus 24. The processor 21, the memory 22 and the communication interface 23 may be connected by a bus 24.
The processor 21 is a control center of the access network device, and may be a single processor or a collective term for multiple processing elements. For example, the processor 21 may be a Central Processing Unit (CPU), or may be another general-purpose processor. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.
For one embodiment, processor 21 may include one or more CPUs, such as CPU 0 and CPU 1 shown in FIG. 2.
The memory 22 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
In a possible implementation, the memory 22 may exist separately from the processor 21, and the memory 22 may be connected to the processor 21 via a bus 24 for storing instructions or program code. The processor 21 can implement the interference processing method provided by the embodiment of the present invention when it calls and executes the instructions or program codes stored in the memory 22.
In another possible implementation, the memory 22 may also be integrated with the processor 21.
A communication interface 23 for connecting with other devices through a communication network. The communication network may be an ethernet network, a wireless access network, a Wireless Local Area Network (WLAN), or the like. The communication interface 23 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.
The bus 24 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 2, but it is not intended that there be only one bus or one type of bus.
It is to be noted that the structure shown in fig. 2 does not constitute a limitation of the access network device. In addition to the components shown in fig. 2, the access network equipment may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
Fig. 3 shows another hardware structure of the access network device in the embodiment of the present invention. As shown in fig. 3, the access network equipment may include a processor 31 and a communication interface 32. The processor 31 is coupled to a communication interface 32.
The function of the processor 31 may refer to the description of the processor 21 above. The processor 31 also has a memory function, and the function of the memory 22 can be referred to.
The communication interface 32 is used to provide data to the processor 31. The communication interface 32 may be an internal interface of the access network device, or may be an external interface (corresponding to the communication interface 23) of the access network device.
It is noted that the structure shown in fig. 2 (or fig. 3) does not constitute a limitation of the access network device, which may include more or less components than those shown in fig. 2 (or fig. 3), or some components in combination, or a different arrangement of components, in addition to those shown in fig. 2 (or fig. 3).
The interference processing method provided in the embodiment of the present invention may be applied to the access network device, and may also be applied to an interference processing apparatus in the access network device.
Fig. 4 is a flowchart illustrating an interference processing method according to an embodiment of the present invention. As shown in fig. 4, the interference processing method includes the following S401 to S402.
S401, the interference processing device determines an interfered time slot interfered by the cross link from a plurality of uplink time slots.
As a possible implementation manner, the interference processing apparatus obtains an interference value of each uplink timeslot in a plurality of uplink timeslots under the base station, and determines an interfered timeslot interfered by a cross link in the plurality of uplink timeslots according to the interference values of the plurality of uplink timeslots and a preset interference threshold.
In one design, as shown in fig. 5, S401 provided in the embodiment of the present invention may specifically include S4011 to S4012 described below.
S4011, the interference processing device obtains interference values of a plurality of uplink time slots.
The interference value of one uplink time slot is an average value of received noise power of the uplink time slot in a preset time period.
As a possible implementation manner, the interference processing apparatus obtains the received noise power of each uplink timeslot in a preset time period, and calculates an average value of the received noise powers of the uplink timeslots in the preset time period.
Illustratively, there are 20 timeslots in a system frame, of which 10 are uplink timeslots. For the ith uplink time slot in the 10 uplink time slots, the interference processing device obtains the received noise power of the n ith uplink time slots in n system frames in a preset time period, and calculates the average value of the received noise power of the n ith uplink time slots as the interference value of the ith uplink time slot.
The interference processing apparatus stores the received noise power of each timeslot in each system frame, which can be shown in table 1 below.
TABLE 1
Index name Acquisition time stamp Ith uplink time slot of s frame J th uplink time slot of s frame
Uplink received noise power (dBm) YY,MM,DD,HH,SS Psi Psj
And Psi is the received noise power of the ith uplink time slot in the s-th system frame, and Psj is the received noise power of the jth uplink time slot in the s-th system frame.
It should be noted that the acquisition time stamp in table 1 constitutes a preset time period for acquiring uplink received noise power.
S4012, the interference processing device determines the interfered time slot from the uplink time slots based on the obtained interference value and a preset interference threshold.
As a possible implementation manner, the interference processing apparatus determines, according to interference values of multiple uplink timeslots in the base station, an uplink timeslot whose interference value is greater than a preset interference threshold as an interfered timeslot.
Other possible implementation manners of this step may refer to the subsequent description of the embodiment of the present invention, and are not described herein again.
S402, the interference processing apparatus adjusts configuration information of a Physical Uplink Shared Channel (PUSCH) of the first user equipment UE based on an interference value of the interfered timeslot and a preset channel configuration parameter, so as to obtain the adjusted configuration information.
The interfered time slot is used for allocating time slot resources to a physical uplink shared channel of the first UE. The configuration information includes a power of a received power spectrum of the PUSCH, and/or a Modulation and Coding Scheme (MCS) level of the PUSCH.
As a possible implementation manner, the interference processing apparatus compares the magnitude of the interference value of the interfered timeslot with the magnitude of the threshold in the channel configuration parameter, determines the power offset of the received power spectrum of the PUSCH of the first UE by using different parameters in the channel configuration parameter under different conditions, and further adjusts the power of the received power spectrum of the PUSCH of the first UE according to the calculated power offset. Or, under the same condition, the interference processing apparatus may further calculate a down-regulation offset of the MCS of the PUSCH of the first UE according to the interference value of the interfered timeslot and a preset channel configuration parameter, and adjust the level of the MCS of the PUSCH of the first UE according to the calculated down-regulation offset.
It should be noted that the PUSCH may be used to carry a voice service initiated by a user through a UE.
The specific implementation manner of this step may refer to the following description of the embodiment of the present invention, and is not described herein again.
It can be understood that, after determining the adjusted configuration information of the PUSCH of the first UE, the interference processing apparatus broadcasts the adjusted configuration information of the PUSCH of the first UE to the first UE, so that the first UE sets the PUSCH of the first UE according to the adjusted configuration information of the PUSCH of the first UE.
Optionally, in order to determine the interfered timeslot according to the interference values of the multiple uplink timeslots, as shown in fig. 6, another implementation manner of S4012 is further provided in the embodiment of the present invention, which specifically includes the following S501 to S503.
S501, the interference processing device determines the difference value between the interference value of the first uplink time slot and the interference value of the second uplink time slot.
The first uplink time slot and the second uplink time slot are any one of a plurality of uplink time slots.
S502, the interference processing device judges whether the difference between the interference value of the first uplink time slot and the interference value of the second uplink time slot is larger than a first interference threshold value or not, and whether the interference value of the first uplink time slot is larger than a second interference threshold value or not.
Wherein the interference threshold comprises a first interference threshold and a second interference threshold.
It should be noted that both the first interference threshold and the second interference threshold may be set in the interference processing device by operation and maintenance personnel in advance.
S503, if the difference between the interference value of the first uplink timeslot and the interference value of the second uplink timeslot is greater than the first interference threshold and the interference value of the first uplink timeslot is greater than the second interference threshold, the interference processing device determines that the first uplink timeslot is an interfered timeslot.
Illustratively, the first uplink time slot is an ith uplink time slot in the multiple uplink time slots, and the second uplink time slot is a jth uplink time slot in the multiple uplink time slots. Wherein i and j are positive integers, i is less than or equal to N, j is less than or equal to N, and N is the number of the plurality of uplink time slots.
After the average value of the received noise power of the ith uplink time slot and the average value of the received noise power of the jth uplink time slot are determined, if the difference value between the average value of the received noise power of the ith uplink time slot and the average value of the received noise power of the jth uplink time slot is larger than a first interference threshold value and the average value of the received noise power of the ith uplink time slot is larger than a second interference threshold value, determining the ith uplink time slot as an interfered time slot interfered by a cross link, wherein the average value of the received noise power of the ith uplink time slot is an interference value of the interfered time slot.
In one design, as shown in fig. 7, the interference processing method provided in the embodiment of the present invention further includes following steps S601 to S602.
S601, the interference processing device determines a second UE of which the PUSCH occupies the non-interfered time slot from the UEs accessing the base station.
The non-interfered time slot comprises a plurality of uplink time slots except the interfered time slot. In the second UE, the time slot of the UE whose path loss is greater than the preset loss threshold is assigned with the priority, and the time slot of the UE whose path loss is greater than or equal to the loss threshold is assigned with the priority.
As a possible implementation manner, the interference processing apparatus determines path losses of all UEs accessing the base station, and divides all UEs accessing the base station into a third UE and a fourth UE based on a preset loss threshold.
And the path loss of the third UE is greater than a loss threshold, and the path loss of the fourth UE is less than or equal to a preset loss threshold.
It is understood that the third UE is a UE at the edge of the coverage of the base station and the fourth UE is a UE at the center of the coverage of the base station.
Further, the interference processing device determines an undisturbed time slot in the plurality of uplink time slots, and allocates a time slot resource of the undisturbed time slot to a PUSCH of the third UE.
In one case, after the interference processing apparatus allocates the timeslot resources of the non-interfered timeslot in the multiple uplink timeslots to the PUSCH of the third UE, if remaining timeslot resources still exist in the non-interfered timeslot, the interference processing apparatus allocates the remaining timeslot resources therein to the PUSCH of the fourth UE until the remaining timeslot resources are allocated, and by this time, the interference processing apparatus determines the UE, which is not allocated with the practice resources of the non-interfered timeslot, in the fourth UE as the second UE.
In another case, the interference processing apparatus allocates a timeslot resource of an undisturbed timeslot in the plurality of uplink timeslots to a PUSCH of the third UE, and if the timeslot resource of the undisturbed timeslot is not enough in the allocation process to be the PUSCH allocated to the third UE, the interference processing apparatus determines a UE, which is not allocated with the undisturbed timeslot resource, in the third UE, and the fourth UE as the second UE.
S602, the interference processing device determines that the UE except the second UE is the first UE in the UE accessing the base station.
In one design, as shown in fig. 8, S402 provided in the embodiment of the present invention specifically includes S4021 to S4022:
s4021, the interference processing device determines the residual time slot resources in the non-interfered time slots in the plurality of uplink time slots.
The non-interfered time slot comprises a plurality of uplink time slots except the interfered time slot.
As a possible implementation manner, the interference processing apparatus determines an undisturbed time slot in the plurality of uplink time slots, and determines a remaining time slot resource of the undisturbed time slot.
S4022, the interference processing device adjusts the configuration information of the PUSCH of the first user equipment UE based on the interference value of the interfered time slot and the preset channel configuration parameter under the condition that the non-interfered time slot has no residual time slot resource.
As a possible implementation manner, the interference processing apparatus adjusts the configuration information of the PUSCH of the first UE according to the interference value of the interfered timeslot and a parameter in the channel configuration parameter, when it is determined that no remaining timeslot resource exists in the non-interfered timeslot.
In another case, if the interference processing apparatuses determine that the remaining timeslot resources exist in the non-interfered timeslot, the first UE is determined again according to the implementation manner in S601 until the remaining timeslot resources do not exist in the non-interfered timeslot.
In one design, in the interference processing method provided in the embodiment of the present invention, when the configuration information is the power of the received power spectrum of the PUSCH, the channel configuration parameter includes a preset first threshold, a preset second threshold, a minimum power offset of the received power spectrum of the PUSCH of the first UE, a maximum power offset of the received power spectrum of the PUSCH of the first UE, and an initial power of the received power spectrum of the PUSCH of the first UE.
In this case, as shown in fig. 9, S402 provided in the embodiment of the present invention specifically includes the following S701 to S704.
S701, the interference processing device determines the size relation between the interference value of the interfered time slot and the first threshold value and the second threshold value.
S702, when the interference value of the interfered timeslot is between the first threshold and the second threshold, the interference processing apparatus determines a target power offset of the received power spectrum of the PUSCH of the first UE according to the interference value of the interfered timeslot, the first threshold, the second threshold, the minimum power offset, and the maximum power offset.
It should be noted that the first threshold, the second threshold, the minimum power offset, and the maximum power offset may be set in the interference processing device in advance by an operation and maintenance person. The second threshold is greater than the first threshold.
As a possible implementation manner, the target power offset of the received power spectrum of the PUSCH of the first UE satisfies the following formula one:
Figure BDA0003131289660000101
wherein, P c A target bias power of a received power spectrum of a PUSCH for the first UE. P cl For minimum power bias, P ch At maximum power offset, P SL Is a first threshold. P SH Is a second threshold. P i The interference value of the ith interfered time slot in the plurality of time slots.
In addition, the above P cl 、P ch 、P SH Are all preset by operators according to actual conditions. Exemplary, P cl May be 2dB. P ch May be 10dB. P SH May be-95 dBm.
S703, when the interference value of the interfered timeslot is greater than the second threshold, the interference processing apparatus determines the maximum power offset as a target power offset of the received power spectrum of the PUSCH of the first UE.
S704, the interference processing apparatus adjusts the initial power based on the target power offset to obtain a target power of an adjusted received power spectrum of the PUSCH of the first UE.
As a possible implementation manner, the interference processing apparatus determines a sum of the target power offset and the initial power as a target power of the PUSCH adjusted received power spectrum of the first UE.
It can be understood that, when the uplink timeslot of the interference processing apparatus receives stronger interference (i.e., the interference level is greater than the first threshold and less than or equal to the second threshold), the interference processing apparatus may reduce the interference by increasing the power of the received power spectrum of the PUSCH of the first UE, but the power of the received power spectrum of the PUSCH of the first UE cannot be increased without limitation, and if the power is increased continuously, other indicators (e.g., the network speed) may be affected. Therefore, the adjustment of the power of the received power spectrum of the PUSCH of the first UE needs to be within a certain range, and the adjusted power cannot exceed the maximum power of the received power spectrum of the PUSCH of the first UE.
In one design, in the interference processing method provided in the embodiment of the present invention, when the configuration information is an MCS level of a PUSCH, the channel configuration parameters include a preset third threshold, a preset fourth threshold, a minimum downward adjustment offset of the MCS level of the PUSCH of the first UE, a maximum downward adjustment offset of the MCS level of the PUSCH of the first UE, and an initial level of the MCS of the PUSCH of the first UE.
It should be noted that the third threshold, the fourth threshold, the minimum pull-down bias, and the maximum pull-down bias may be set in the interference processing device in advance by operation and maintenance personnel. The second threshold is greater than the first threshold.
In this case, as shown in fig. 10, S402 provided in the embodiment of the present invention may specifically include the following S801 to S804.
S801, the interference processing device determines the magnitude relation between the interference value of the interfered time slot and the third threshold value and the fourth threshold value.
Wherein the fourth threshold is greater than the third threshold.
It should be noted that the interference value of the interfered timeslot may be between the third threshold and the fourth threshold, or may be greater than the fourth threshold.
S802, when the interference value of the interfered timeslot is between the third threshold and the fourth threshold, the interference processing apparatus determines a target down-regulation offset of the MCS of the PUSCH of the first UE according to the interference value of the interfered timeslot, the third threshold, the fourth threshold, the minimum down-regulation offset, and the maximum down-regulation offset.
As a possible implementation manner, the target down-regulation offset of the MCS of the PUSCH of the first UE satisfies the following formula two:
Figure BDA0003131289660000111
Offset mcs the offset value is adjusted downward for a target of the MCS of the PUSCH of the first UE. M l Is the minimum turndown bias. M h Is the maximum turndown bias. P SM Is the third threshold. P SN Is the fourth threshold. []To round down.
In addition, M is as defined above l 、M h 、P SM 、P SN Are all preset by operation and maintenance personnel according to actual conditions. Exemplary, M l Can be 2,M h May be 30.P is SM Can be-95dBm SN May be-75 dBm.
S803, when the interference value of the interfered timeslot is greater than the fourth threshold, the interference processing apparatus determines that the maximum downward adjustment offset is the target downward adjustment offset of the MCS of the PUSCH of the first UE.
S804, the interference processing apparatus adjusts the initial level based on the target down-regulation offset to obtain a target level of an adjusted MCS of the PUSCH of the first UE.
As a possible implementation, the interference processing apparatus determines a difference between the initial level and the target down-regulation offset as a target level of the adjusted MCS of the PUSCH of the first UE.
It can be understood that, when the uplink timeslot receives stronger interference (the interference level is greater than the third threshold and less than or equal to the fourth threshold), the interference may be reduced by reducing the level of the modulation and coding scheme of the PUSCH of the first UE, and the reliability of the access network device is improved. However, the modulation and coding level of the PUSCH of the first UE cannot be adjusted down greatly, for example, if the modulation and coding level of the PUSCH of the first UE is adjusted down greatly, other indicators (e.g., the network speed) may be affected. Therefore, adjustment of the MCS level of the PUSCH of the first UE requires conservative adjustment, and the modulation and coding level of the PUSCH of the first UE after adjustment is at least 0.
In practical applications, as the interference value of the interfered timeslot increases, the interference processing apparatus may simultaneously adjust the target power of the received power spectrum of the PUSCH of the first UE and the MCS level of the PUSCH of the first UE, may first adjust the power of the received power spectrum of the PUSCH of the first UE, and then adjust the MCS level of the PUSCH of the first UE, and may first adjust the MCS level of the PUSCH of the first UE, and then adjust the power of the received power spectrum of the PUSCH of the first UE, which is not limited in the embodiment of the present invention.
The scheme provided by the embodiment of the invention is mainly introduced from the perspective of a method. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed in hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The embodiment of the present invention may perform functional module division on the access network device according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present invention is schematic, and is only one logic function division, and another division manner may be provided in actual implementation.
Fig. 11 is a schematic structural diagram of an interference processing apparatus according to an embodiment of the present invention. As shown in fig. 11, the interference processing apparatus 90 is configured to reduce cross-link interference of PUSCH, for example, to execute the interference processing method shown in fig. 4. The interference processing apparatus 90 is applied to an access network device of a base station, and includes a determining unit 901 and an adjusting unit 902.
A determining unit 901 is configured to determine an interfered timeslot interfered by a cross link from a plurality of uplink timeslots. For example, in conjunction with fig. 4, the determining unit 901 may be configured to perform S401.
An adjusting unit 902, configured to adjust configuration information of a PUSCH of a first user equipment UE based on an interference value of an interfered timeslot and a preset channel configuration parameter, so as to obtain adjusted configuration information. The interfered slot is used for allocating slot resources to a PUSCH of the first UE. The configuration information comprises the power of the received power spectrum of the PUSCH and/or the Modulation and Coding Strategy (MCS) level of the PUSCH. For example, in conjunction with fig. 4, the adjusting unit 902 may be configured to perform S402.
Optionally, as shown in fig. 11, the determining unit 901 provided in the embodiment of the present invention is specifically configured to:
the method comprises the steps of obtaining interference values of a plurality of uplink time slots, and determining interfered time slots from the uplink time slots based on the obtained interference values and a preset interference threshold. The interference value of an uplink time slot is an average value of the received noise power of the uplink time slot in a preset time period. For example, in connection with fig. 5, the determination unit 901 may be configured to perform S4011-S4012.
Optionally, as shown in fig. 11, the interference threshold provided in the embodiment of the present invention includes a first interference threshold and a second interference threshold. The determining unit 901 is specifically configured to:
and for the first uplink time slot and the second uplink time slot, if the difference between the interference value of the first uplink time slot and the interference value of the second uplink time slot is greater than a first interference threshold value and the interference value of the first uplink time slot is greater than a second interference threshold value, determining that the first uplink time slot is an interfered time slot. The first uplink time slot and the second uplink time slot are any one of a plurality of uplink time slots. For example, in conjunction with fig. 6, the determining unit 901 may be configured to execute S503.
Optionally, as shown in fig. 11, the determining unit 901 provided in the embodiment of the present invention is further configured to determine, from the UE accessing the base station, a second UE whose PUSCH occupies an undisturbed time slot. The non-interfered time slot comprises a plurality of uplink time slots except the interfered time slot. In the second UE, the time slot of the UE whose path loss is greater than the preset loss threshold is assigned with the priority, and the time slot of the UE whose path loss is greater than or equal to the loss threshold is assigned with the priority. For example, in conjunction with fig. 7, the determining unit 901 may be configured to perform S601.
The determining unit 901 is further configured to determine that, of the UEs accessing the base station, the UEs except the second UE are the first UE. For example, in conjunction with fig. 7, the determining unit 901 may be configured to perform S602.
Optionally, as shown in fig. 11, the determining unit 901 provided in the embodiment of the present invention is further configured to determine remaining timeslot resources in an undisturbed timeslot in a plurality of uplink timeslots. The non-interfered time slot comprises a plurality of uplink time slots except the interfered time slot. For example, in conjunction with fig. 8, the determination unit 901 may be configured to execute S4021.
The adjusting unit 902 is specifically configured to, when there is no remaining timeslot resource in the non-interfered timeslot, adjust the configuration information of the PUSCH of the first user equipment UE based on the interference value of the interfered timeslot and the preset channel configuration parameter. For example, in conjunction with fig. 8, the adjusting unit 902 may be configured to execute S4022.
Optionally, as shown in fig. 11, in the interference processing apparatus according to the embodiment of the present invention, when the configuration information is a power of a received power spectrum of a PUSCH, the channel configuration parameter includes a preset first threshold, a preset second threshold, a minimum power offset of the received power spectrum of the PUSCH of the first UE, a maximum power offset of the received power spectrum of the PUSCH of the first UE, and an initial power of the received power spectrum of the PUSCH of the first UE.
The adjusting unit 902 is specifically configured to:
and under the condition that the interference value of the interfered time slot is between the first threshold and the second threshold, determining a target power offset of a PUSCH (physical uplink shared channel) received power spectrum of the first UE according to the interference value of the interfered time slot, the first threshold, the second threshold, the minimum power offset and the maximum power offset. For example, in conjunction with fig. 9, the adjustment unit 902 may be configured to perform S702.
Adjusting the initial power based on the target power offset to obtain a power of an adjusted received power spectrum of the PUSCH of the first UE. For example, in conjunction with fig. 9, the adjustment unit 902 may be configured to perform S704.
Optionally, as shown in fig. 11, in the interference processing apparatus according to the embodiment of the present invention, when the configuration information is the MCS level of the PUSCH, the channel configuration parameters include a preset third threshold, a preset fourth threshold, a minimum downward offset of the MCS level of the PUSCH of the first UE, a maximum downward offset of the MCS level of the PUSCH of the first UE, and an initial level of the MCS of the PUSCH of the first UE.
The adjusting unit 902 is specifically configured to:
and under the condition that the interference value of the interfered time slot is between the third threshold and the fourth threshold, determining a target downward regulation offset of the MCS of the PUSCH of the first UE according to the interference value of the interfered time slot, the third threshold, the fourth threshold, the minimum downward regulation offset and the maximum downward regulation offset. For example, in conjunction with fig. 10, the adjusting unit 902 may be configured to perform S803.
Based on the target down-regulation offset, the initial level is adjusted to obtain a target level of an adjusted MCS of the PUSCH of the first UE. For example, in conjunction with fig. 10, the adjusting unit 902 may be configured to perform S804.
As an example, with reference to fig. 2, the functions implemented by the determining unit 901 and the adjusting unit 902 in the interference processing apparatus are the same as the functions of the processor of the access network device.
Through the above description of the embodiments, it is clear for a person skilled in the art that, for convenience and simplicity of description, only the division of the above functional units is illustrated. In practical applications, the above function allocation may be performed by different functional units according to requirements, that is, the internal structure of the device is divided into different functional units to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer executes the instructions, the computer executes each step in the method flow shown in the foregoing method embodiment.
Embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the interference handling method of the above method embodiments.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), read-Only Memory (ROM), erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, an optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium, in any suitable combination, or as appropriate in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Since the apparatus, the device, the computer-readable storage medium, and the computer program product in the embodiments of the present invention may be applied to the method described above, for technical effects that can be obtained by the apparatus, the computer-readable storage medium, and the computer program product, reference may also be made to the method embodiments described above, and details of the embodiments of the present invention are not repeated herein.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions within the technical scope of the present invention are intended to be covered by the scope of the present invention.

Claims (12)

1. An interference processing method applied to an access network device is characterized by comprising the following steps:
determining an interfered time slot interfered by a cross link from a plurality of uplink time slots;
adjusting configuration information of a Physical Uplink Shared Channel (PUSCH) of first User Equipment (UE) based on the interference value of the interfered time slot and a preset channel configuration parameter to obtain adjusted configuration information; the interfered time slot is used for allocating time slot resources to a PUSCH of the first UE; the configuration information comprises the power of a received power spectrum of the PUSCH and/or the modulation and coding strategy MCS level of the PUSCH;
when the configuration information is the power of the received power spectrum of the PUSCH, the channel configuration parameter includes a preset first threshold, a preset second threshold, a minimum power offset of the received power spectrum of the PUSCH of the first UE, a maximum power offset of the received power spectrum of the PUSCH of the first UE, and an initial power of the received power spectrum of the PUSCH of the first UE; the adjusting the configuration information of the PUSCH of the first user equipment UE based on the interference value of the interfered timeslot and a preset channel configuration parameter includes:
determining a target power offset of a received power spectrum of a PUSCH of the first UE according to the interference value of the interfered slot, the first threshold, the second threshold, the minimum power offset, and the maximum power offset if the interference value of the interfered slot is between the first threshold and the second threshold; the target power offset of the received power spectrum of the PUSCH of the first UE satisfies the following equation:
Figure FDA0003878702280000011
wherein, P c Target bias power, P, for received power spectrum of PUSCH of first UE cl For minimum power bias, P ch To maximum power offset, P SL Is a first threshold value, P SH Is a second threshold value, P i An interference value of an ith interfered time slot in the plurality of time slots;
adjusting the initial power based on the target power offset to obtain a power of an adjusted received power spectrum of a PUSCH of the first UE;
and/or the presence of a gas in the atmosphere,
when the configuration information is the MCS level of the PUSCH, the channel configuration parameters include a preset third threshold, a preset fourth threshold, a minimum down-regulation offset of the MCS level of the PUSCH of the first UE, a maximum down-regulation offset of the MCS level of the PUSCH of the first UE, and an initial level of the MCS of the PUSCH of the first UE; the adjusting the configuration information of the PUSCH of the first user equipment UE based on the interference value of the interfered timeslot and a preset channel configuration parameter includes:
determining a target down-regulation offset of the MCS of the PUSCH of the first UE according to the interference value of the interfered timeslot, the third threshold, the fourth threshold, the minimum down-regulation offset and the maximum down-regulation offset when the interference value of the interfered timeslot is between the third threshold and the fourth threshold; the target down-regulation offset of the MCS for the PUSCH of the first UE satisfies the following equation:
Figure FDA0003878702280000021
wherein, offset mcs Adjusting down an offset value, M, for a target of MCS for PUSCH of a first UE l To minimize turndown bias, M h For maximum turndown bias, P SM Is a third threshold value, P SN Is the fourth threshold value [ alpha ], [ alpha ]]Is a rounding-down operation;
adjusting the initial level based on the target down-regulation offset to obtain a target level of an adjusted MCS for a PUSCH of the first UE.
2. The interference processing method of claim 1, wherein the determining an interfered timeslot interfered with by a cross link from a plurality of uplink timeslots comprises:
acquiring interference values of the uplink time slots, and determining the interfered time slots from the uplink time slots based on the acquired interference values and a preset interference threshold; the interference value of one uplink time slot is the average value of the received noise power of the uplink time slot in a preset time period.
3. The interference processing method according to claim 2, wherein the interference threshold comprises a first interference threshold and a second interference threshold; the determining the interfered timeslot from the uplink timeslots based on the obtained interference value and a preset interference threshold includes:
for a first uplink time slot and a second uplink time slot, if the difference between the interference value of the first uplink time slot and the interference value of the second uplink time slot is greater than a first interference threshold value, and the interference value of the first uplink time slot is greater than a second interference threshold value, determining that the first uplink time slot is the interfered time slot; the first uplink timeslot and the second uplink timeslot are both any one of the plurality of uplink timeslots.
4. The interference processing method of claim 1, further comprising:
determining second UE with PUSCH occupying non-interfered time slot from UE accessed to the base station; the non-interfered time slot comprises an uplink time slot except the interfered time slot in the plurality of uplink time slots; in the second UE, the time slot allocation priority of the UE with the path loss larger than a preset loss threshold value is higher than the time slot allocation priority of the UE with the path loss smaller than or equal to the loss threshold value;
and determining that the UE except the second UE in the UE accessing the base station is the first UE.
5. The interference processing method according to claim 1, wherein the adjusting configuration information of a PUSCH of a first user equipment UE based on the interference value of the interfered timeslot and a preset channel configuration parameter includes:
determining the residual time slot resources in the non-interfered time slots in the plurality of uplink time slots; the non-interfered time slot comprises an uplink time slot except the interfered time slot in the plurality of uplink time slots;
and under the condition that no residual time slot resources exist in the non-interfered time slot, adjusting the configuration information of the PUSCH of the first User Equipment (UE) based on the interference value of the interfered time slot and preset channel configuration parameters.
6. An interference processing device is applied to access network equipment and is characterized by comprising a determining unit and an adjusting unit;
the determining unit is configured to determine an interfered timeslot interfered by a cross link from a plurality of uplink timeslots;
the adjusting unit is configured to adjust configuration information of a Physical Uplink Shared Channel (PUSCH) of the first User Equipment (UE) based on the interference value of the interfered timeslot and a preset channel configuration parameter, so as to obtain adjusted configuration information; the interfered time slot is used for allocating time slot resources to a PUSCH of the first UE; the configuration information comprises the power of a received power spectrum of the PUSCH and/or the modulation and coding strategy MCS level of the PUSCH;
when the configuration information is the power of the received power spectrum of the PUSCH, the channel configuration parameters include a preset first threshold, a preset second threshold, a minimum power offset of the received power spectrum of the PUSCH of the first UE, a maximum power offset of the received power spectrum of the PUSCH of the first UE, and an initial power of the received power spectrum of the PUSCH of the first UE;
the adjusting unit is specifically configured to:
determining a target power offset of a received power spectrum of a PUSCH of the first UE according to the interference value of the interfered timeslot, the first threshold, the second threshold, the minimum power offset, and the maximum power offset if the interference value of the interfered timeslot is between the first threshold and the second threshold;
adjusting the initial power based on the target power offset to obtain a power of an adjusted received power spectrum of a PUSCH of the first UE;
and/or the presence of a gas in the gas,
when the configuration information is the MCS level of the PUSCH, the channel configuration parameters include a preset third threshold, a preset fourth threshold, a minimum down-regulation offset of the MCS level of the PUSCH of the first UE, a maximum down-regulation offset of the MCS level of the PUSCH of the first UE, and an initial level of the MCS of the PUSCH of the first UE;
the adjusting unit is specifically configured to:
determining a target down-regulation offset of the MCS of the PUSCH of the first UE according to the interference value of the interfered timeslot, the third threshold, the fourth threshold, the minimum down-regulation offset and the maximum down-regulation offset when the interference value of the interfered timeslot is between the third threshold and the fourth threshold; the target down-regulation offset of the MCS for the PUSCH of the first UE satisfies the following equation:
Figure FDA0003878702280000041
wherein, offset mcs Adjusting down an offset value, M, for a target of MCS for PUSCH of a first UE l To minimize turndown bias, M h Is the maximum down-regulationOffset, P SM Is a third threshold value, P SN Is the fourth threshold value [ alpha ], [ alpha ]]Is a rounding-down operation;
adjusting the initial level based on the target down-regulation offset to obtain a target level of an adjusted MCS for a PUSCH of the first UE.
7. The interference processing apparatus according to claim 6, wherein the determining unit is specifically configured to:
acquiring interference values of the uplink time slots, and determining the interfered time slot from the uplink time slots based on the acquired interference values and a preset interference threshold; the interference value of one uplink time slot is the average value of the received noise power of the uplink time slot in a preset time period.
8. The interference processing apparatus of claim 7, wherein the interference threshold comprises a first interference threshold and a second interference threshold; the determining unit is specifically configured to:
for a first uplink time slot and a second uplink time slot, if the difference between the interference value of the first uplink time slot and the interference value of the second uplink time slot is greater than a first interference threshold value, and the interference value of the first uplink time slot is greater than a second interference threshold value, determining that the first uplink time slot is the interfered time slot; the first uplink time slot and the second uplink time slot are both any one of the plurality of uplink time slots.
9. The interference processing apparatus according to claim 6, wherein the determining unit is further configured to determine, from the UEs accessing the base station, a second UE whose PUSCH occupies an undisturbed time slot; the non-interfered time slot comprises an uplink time slot except the interfered time slot in the plurality of uplink time slots; in the second UE, the time slot allocation priority of the UE with the path loss larger than a preset loss threshold value is higher than the time slot allocation priority of the UE with the path loss smaller than or equal to the loss threshold value;
the determining unit is further configured to determine that, of the UEs accessing the base station, the UEs other than the second UE are the first UE.
10. The interference processing apparatus according to claim 6, wherein the determining unit is further configured to determine remaining timeslot resources in an undisturbed timeslot in the plurality of uplink timeslots; the non-interfered time slot comprises an uplink time slot except the interfered time slot in the plurality of uplink time slots;
the adjusting unit is specifically configured to adjust the configuration information of the PUSCH of the first user equipment UE based on the interference value of the interfered timeslot and a preset channel configuration parameter under the condition that no remaining timeslot resource exists in the non-interfered timeslot.
11. A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the interference processing method of any of claims 1-5.
12. An access network device, comprising: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs including computer executable instructions that, when executed by the access network device, cause the access network device to perform the interference handling method of any of claims 1-5.
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