CN113747491A - Interference reporting method and user equipment - Google Patents

Interference reporting method and user equipment Download PDF

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CN113747491A
CN113747491A CN202110988146.1A CN202110988146A CN113747491A CN 113747491 A CN113747491 A CN 113747491A CN 202110988146 A CN202110988146 A CN 202110988146A CN 113747491 A CN113747491 A CN 113747491A
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slots
slot
value
interference measurement
period
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武传国
谭定富
是元吉
唐兵
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Shanghai Qingkun Information Technology Co Ltd
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Shanghai Qingkun Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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 embodiment of the application provides an interference reporting method, wherein UE obtains an interference measurement metric value I of each slot of N continuous slot slotsnAnd obtaining the mean value E of the interference measurement metric values of the N slots, wherein N is a slot index value,
Figure DDA0003231423820000011
n is more than or equal to 1; acquiring K slots of the N slots, wherein the K slots comprise a kth slot, the interference measurement metric value of the kth slot is greater than (a × E), the kth slot is any one of the K slots, K is less than or equal to N, and a is a constant value greater than 1; determining M slots in the K slots, wherein the index values of the M slots take a period P as an interval, and M is more than or equal to 1 and less than or equal toK, P is more than or equal to 2; and reporting the period P and the offset Q to a base station, so that the base station performs evasive operation during scheduling according to the interference condition reported by the UE, and the robustness of wireless communication is ensured.

Description

Interference reporting method and user equipment
Technical Field
The present application relates to the field of communications technologies, and in particular, to an interference reporting method and a user equipment.
Background
With the development of wireless communication technology, the application of wireless networks is more and more extensive, and wireless access technology is continuously evolving. For example, the fourth Generation (4G) communication technology has evolved to the fifth Generation (5G) communication technology, or New Radio (NR) communication technology, and is beginning to be commercialized.
Interference in wireless communication includes both intra-system interference and external interference, including both irregular interference and regular interference.
For irregular Interference, a User Equipment (UE) may employ Interference Rejection Combining (IRC) or other techniques to suppress the Interference. Due to the irregularity of the interference, the interference suppression algorithm is also complex, and the consumed resources are also many.
For regular interference, since the interference regularity is repeatable, it is necessary to deeply study how to reduce the algorithm complexity and ensure the system performance of wireless communication based on the interference regularity.
Disclosure of Invention
In view of this, the present application provides an interference reporting method and a UE, so as to ensure robustness of wireless communication.
In one implementation, the present application provides an interference reporting method, where a UE obtains an interference measurement metric value I of each slot of N consecutive slot slotsnAnd obtaining the mean value E of the interference measurement metric values of the N slots, wherein N is a slot index value,
Figure BDA0003231423800000011
acquiring K slots of the N slots, wherein the K slots comprise a kth slot, the interference measurement metric value of the kth slot is greater than (a × E), the kth slot is any one of the K slots, K is less than or equal to N, and a is a constant value greater than 1; determining M slots of the K slots, wherein the index values of the M slots are equal toThe period P is interval, wherein M is more than or equal to 1 and less than or equal to K, and P is more than or equal to 2; and reporting the period P and the offset Q to a base station so that the base station performs evasive operation during scheduling according to the interference condition reported by the UE.
Optionally, the UE reports the period P and the offset Q as uplink control information UCI to the base station, and may report periodically or non-periodically.
Optionally, the UE obtains the interference measurement metric value I of each slot of the N consecutive slot slots based on one or more of a synchronization signal and a physical broadcast channel block SSB, a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a demodulation reference signal DMRS, or a channel state information reference signal CSI-RSn。
Optionally, the average value is an arithmetic average value, a geometric average value, or a weighted average value of the interference measurement metric values of the N slots.
In another implementation, the present application further provides a user equipment including a unit for implementing the above interference reporting method, where each step may be implemented by an independent unit, or all or part of the units may be integrated together. These units may be logic units, stored in the form of software or hardware, for example, in a memory in the form of a program, which is called by a processor to implement the functions of the respective units; as another example, the instructions may be implemented in hardware circuitry, such as may be implemented by logic gates.
In one example, the present application provides a user equipment comprising: a processing unit and a transmitting unit. The processing unit is configured to obtain an interference measurement metric value I of each slot of the N consecutive slot slotsnAnd obtaining the mean value E of the interference measurement metric values of the N slots, wherein N is a slot index value,
Figure BDA0003231423800000021
acquiring K slots of the N slots, wherein the K slots comprise a kth slot, the interference measurement metric value of the kth slot is greater than (a × E), the kth slot is any one of the K slots, K is less than or equal to N, and a is a constant value greater than 1; determiningThe index values of M slots in the K slots take a period P as an interval, wherein M is more than or equal to 1 and less than or equal to K, and P is more than or equal to 2; determining an offset Q, wherein the offset Q is an index value of any slot of the M slots and a modulus value of the period P; the sending unit is configured to report the period P and the offset Q to a base station.
Optionally, the sending unit is configured to report the period P and the offset Q to a base station as UCI, and optionally, may report the period P and the offset Q to the base station periodically or non-periodically.
Optionally, the processing unit is configured to obtain an interference measurement metric value I of each slot of the N consecutive slot slots based on one or more of a synchronization signal and a physical broadcast channel block SSB, a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a demodulation reference signal DMRS, or a channel state information reference signal CSI-RSn。
Optionally, the processing unit is configured to obtain an arithmetic average value, a geometric average value, or a weighted average value of the interference measurement metric values of the N slots.
In another example, the present application further provides a user equipment, including a processor, configured to invoke a program stored in a memory to implement the above method for interference reporting.
In yet another implementation, the present application further provides a storage medium having program codes stored therein, which when called by a processor, cause the processor to implement the above method for interference reporting.
By the method, the period and the offset of the slot meeting the conditions are determined for the interference measurement metric values of the continuous slots and reported to the base station, so that the base station performs evasive operation during scheduling according to the interference condition reported by the UE, and the robustness of communication is ensured.
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The following description of specific embodiments of the present application will be made with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic diagram of an interference reporting method according to an embodiment of the present application;
fig. 3 is a flowchart of an interference reporting method according to an embodiment of the present application;
fig. 4 is a schematic diagram of a user equipment according to an embodiment of the present application;
fig. 5 is a schematic diagram of another user equipment according to an embodiment of the present application.
Detailed Description
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the present application, and that for a person skilled in the art, other drawings and other embodiments can be obtained from these drawings without inventive effort. For the sake of simplicity, the drawings only schematically show the parts relevant to the present application, and they do not represent the actual structure as a product.
Please refer to fig. 1, which is a schematic diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system includes AN Access Network (AN) 110 and a Core Network (Core Network, CN)120, and a User Equipment (UE) 130 accesses to a wireless Network through the AN 110 and communicates with other networks, such as a Data Network (Data Network), through the CN 120.
The AN may also be referred to as a Radio Access Network (RAN), and the device on the AN side may be referred to as AN device or a RAN device, and may also be referred to as a base station. The names of the different communication systems are different, for example, in a Long Term Evolution (LTE) system, the communication system may be referred to as an evolved Node B (eNB), and in a 5G system, the communication system may be referred to as a next generation Node B (gnb). AN apparatus may also be a Centralized Unit (CU), a Distributed Unit (DU), or include a CU and a DU.
The method and the device can report the interference based on the regularity of the interference, and can ensure the robustness of wireless communication.
The scheme of the embodiment of the application is described below with reference to the attached drawings.
Please refer to fig. 2, which is a schematic diagram of an interference reporting method according to an embodiment of the present application. As shown in fig. 2, the method is performed by a UE, and includes the following steps:
s210: obtaining an interference measurement metric value I of each slot of N continuous slots (slots)nAnd obtaining the mean value E of the interference measurement metric values of the N slots.
The UE may select N slots consecutively according to system requirements or settings.
It can be understood that the UE may obtain the interference measurement metric value I/I for each slot of the N slots based on one or more of a Synchronization Signal and a Physical Broadcast Channel Block (SSB) or a Physical Downlink Control Channel (PDCCH) or a Physical Downlink Shared Channel (PDSCH) or a Demodulation Reference Signal (DMRS) or a Channel State Information Reference Signal (CSI-RS)n. The embodiment of the invention does not limit the specific method for interference measurement.
UE obtains interference measurement metric value I of each slot of the continuous N slotsnBased on the interference measurement metric value I of each slotnThe UE may calculate a mean E of the interference measurement metric values of the N slots, where N is a slot index value,
Figure BDA0003231423800000051
optionally, the average value is an arithmetic average value of the interference measurement metric values of the N slots.
Optionally, the average value is a geometric average value or a weighted average value of the interference measurement metric values of the N slots.
S220: and acquiring K slots in the N slots, wherein the K slots comprise a kth slot, the interference measurement metric value of the kth slot is greater than (a × E), and the kth slot is any one of the K slots.
Measuring the interference value I of each slotnComparing with (a E), a is a constant value greater than 1, if In>And (a) E, selecting the slot, traversing the N slots, and determining that the interference measurement metric values of K slots meet the condition, wherein K is less than or equal to N.
The K slots include a kth slot, the interference measurement metric value of the kth slot is greater than (a × E), and the kth slot is any one of the K slots.
S230: and determining M slots in the K slots, wherein the index values of the M slots take a period P as an interval.
Optionally, M is a preset value, and may be set or changed based on system requirements.
Optionally, the period P is an interval of the index values of the slots, optionally, the period P may be a preset value, or may also be based on the actually obtained index values of the K slots, the K slots are traversed according to different index intervals, and when the M slots can be obtained, the index interval is taken as the period P.
S240: and reporting the period P and the offset Q to a base station.
With the period P as an index interval, there are M slots among the K slots.
The offset Q is an index value of any one of the M slots and a modulus value of the period P.
And the UE reports the acquired period P and the offset Q to the base station. And the base station performs evasion operation during scheduling according to the interference condition reported by the UE so as to ensure the robustness of wireless communication.
Optionally, the UE reports the period P and the offset Q to the base station as uplink control information UCI.
Optionally, the UE may report the UCI periodically or aperiodically.
By the method, the period and the offset of the slot meeting the conditions are determined for the interference measurement metric values of the continuous slots and reported to the base station, so that the base station performs evasive operation during scheduling according to the interference condition reported by the UE, and the robustness of communication is ensured.
To further illustrate aspects of embodiments of the present application, reference is made to FIG. 3 for a detailed description. It should be noted that, in the embodiment shown in fig. 3, the same or similar contents as those in the embodiment shown in fig. 2 may refer to the detailed description in the embodiment shown in fig. 2, and are not repeated in the following.
Please refer to fig. 3, which is a flowchart illustrating an interference reporting method according to an embodiment of the present application. As shown in fig. 3:
selecting N continuous slots and obtaining an interference measurement metric value I of each slotnWherein
Figure BDA0003231423800000061
Denotes the slot index and N denotes the number of slot counts.
For example: selecting continuous 16 slots and obtaining an interference measurement metric value I of each slotnAs shown in table 1 below, where N is 16; and is
Figure BDA0003231423800000062
Table 1: interference measurement metric value I of slotn
Figure BDA0003231423800000063
Figure BDA0003231423800000071
And calculating the average value E of the interference measurement metric values of N slots.
For arithmetic mean, the calculation is as follows:
Figure BDA0003231423800000072
according to I of the above tablenAnd E is calculated to be 9.6.
Optionally, the average value may also be a geometric average value or a weighted average value, and the like, based on different requirements, and the embodiment of the present invention is not particularly limited.
Measuring the interference of each slot in N slots by a metric value InComparing with (a E), wherein a is>1, and recording that I is satisfiedn>And (a) the slot index set corresponding to (a × E) is marked as G.
Assuming that a is 1.1, it can be obtained that I is satisfiedn>The slot index set corresponding to (a × E) is as follows:
G＝{1，5，6,11}
note that a is only a reference value, and a may be set to other positive values.
The period and offset of the interference is found based on the set G.
At least M interferences with the same interval are searched in the slot index set G, where M is a positive value > 1, and M is assumed to be 3 in this embodiment.
The basic method of finding the period and offset of the interference in the set G is as follows:
(a) in the set G, traversing at intervals of 2, and finding that M is not 3 index values meeting the condition;
(b) in the set G, traversing at intervals of 3, and finding that M is not 3 index values meeting the condition;
(c) in the set G, traversing at intervals of 4, and finding that M is not 3 index values meeting the condition;
(d) in the set G, traversing is performed at 5 intervals, and it is found that M ═ 3 index values satisfying the condition can be found, and the 3 index values are 1,6, and 11, respectively.
Obtaining a period P of 5 and an offset Q of 1 according to the index value set {1,6,11} meeting the condition, wherein P corresponds to the interval of adjacent numbers in the set {1,6,11 }; q is obtained by taking the modulus of the period P from any value in the set {1,6,11} (note: 1mod 5 ═ 1; 6mod 5 ═ 1; 11mod 5 ═ 1).
And the UE reports the interference period and the offset as UCI to the base station. And the base station performs corresponding avoidance operation during scheduling according to the interference condition reported by the UE, so that the communication robustness is ensured. The embodiment of the invention does not limit the scheduling avoidance of the base station.
The UE combines the period P-5 and the offset Q-1 into UCI and reports to the base station on an uplink channel (PUSCH channel or PUCCH channel).
In one implementable manner, the message format may be defined as follows:
Figure BDA0003231423800000081
Figure BDA0003231423800000091
based on the same inventive concept, the embodiment of the present application further provides a user equipment UE, configured to execute the method in the foregoing method embodiment.
In an implementation, please refer to fig. 4, which is a schematic diagram of a UE according to an embodiment of the present disclosure. As shown in fig. 4, the UE400 includes a processing unit 410 and a transmitting unit 420.
A processing unit for obtaining an interference measurement metric value I of each slot of the N continuous slot slotsnAnd obtaining the mean value E of the interference measurement metric values of the N slots, wherein N is a slot index value,
Figure BDA0003231423800000092
acquiring K slots of the N slots, wherein the K slots comprise a kth slot, the interference measurement metric value of the kth slot is greater than (a × E), the kth slot is any one of the K slots, K is less than or equal to N, and a is a constant value greater than 1; determining M slots in the K slots, wherein the index values of the M slots take a period P as an interval, M is more than or equal to 1 and less than or equal to K, and P is more than or equal to 2; and determining an offset Q, wherein the offset Q is an index value of any slot of the M slots and a modulus value of the period P.
And a sending unit, configured to report the period P and the offset Q to a base station. And the base station performs evasive scheduling processing and the like based on the information reported by the UE, so that the robustness of wireless communication is ensured.
Optionally, the sending unit is configured to report the period P and the offset Q to a base station as UCI, and optionally, may report the period P and the offset Q to the base station periodically or non-periodically.
Optionally, the processing unit is configured to obtain an interference measurement metric value I of each slot of the N consecutive slot slots based on one or more of the block SSB, the PDCCH, the PDSCH, the DMRS, and the CSI-RSn。
Optionally, the processing unit is configured to obtain an arithmetic mean value of the interference measurement metric values of the N slots.
Optionally, the processing unit is configured to obtain a geometric average value or a weighted average value of the interference measurement metric values of the N slots.
Details of the operations performed by the units may refer to the method embodiments shown in fig. 2 and fig. 3, and are not described herein again.
The division of each unit of the above communication device is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be realized in the form of software called by processor; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling by a processor through software, and part of the units can be realized in the form of hardware.
For example, the functions of the above units may be stored in a memory in the form of program codes, which are scheduled by a processor to implement the functions of the above units. The Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, the above units may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, in combination with the above two methods, part of the functions is implemented in the form of a scheduler code of the processor, and part of the functions is implemented in the form of a hardware integrated circuit. And when the above functions are integrated together, the functions can be realized in the form of a system-on-a-chip (SOC).
In another implementation, please refer to fig. 5, which is a schematic diagram of another UE provided in the embodiment of the present application. As shown in fig. 5, the UE500 includes a radio frequency device 510 and a baseband device 520. In the downlink direction, the radio frequency apparatus 510 receives data transmitted by the AN device through AN antenna, and transmits the data transmitted by the AN device to the baseband apparatus 520 for processing. In the uplink direction, the baseband apparatus 520 processes data generated by the UE and transmits the processed data to the AN device through the rf apparatus 510 and the antenna. The baseband device 520 includes an interface 521, a processor 522 and a memory 523. The interface 521 is used for communicating with the radio frequency device 510, the memory 523 is used for storing program codes for implementing the above UE-executed methods, and the processor 522 is used for calling the program codes to implement the above UE-executed methods.
In yet another implementation, the present application further provides a UE, which includes a processor, configured to invoke a program stored in a memory, so as to implement the method for reporting interference.
Based on the same inventive concept, embodiments of the present application further provide a program product, such as a computer-readable storage medium, where the computer-readable storage medium includes a program code, and when the program code is called by a processor, the processor is enabled to implement the above method for reporting interference.
Those skilled in the art will understand that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the above program may be stored in a computer readable storage medium, where the program codes are called by a processor, and the processor is configured to execute the method executed by the UE in the above method embodiments. The embodiment of the present application does not limit the form and number of the memory and the processor, for example, the memory may be a CPU or other processor capable of calling a program, and the memory may be various media capable of storing program codes, such as a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims (10)

1. A method for interference reporting, the method comprising:
user Equipment (UE) acquires interference measurement metric value I of each slot of continuous N slot slotsnAnd obtaining the mean value E of the interference measurement metric values of the N slots, wherein N is a slot index value,
Figure FDA0003231423790000011
the UE acquires K slots in the N slots, wherein the K slots comprise a kth slot, the interference measurement metric value of the kth slot is greater than (a × E), the kth slot is any one of the K slots, K is less than or equal to N, and a is a constant value greater than 1;
the UE determines M slots in the K slots, wherein the index values of the M slots take a period P as an interval, M is more than or equal to 1 and less than or equal to K, and P is more than or equal to 2;
and the UE reports the period P and an offset Q to a base station, wherein the offset Q is an index value of any slot of the M slots and a modulus value of the period P.
2. The method of claim 1, wherein the UE obtains interference measurement metric values I for each of N consecutive slot slotsnThe method comprises the following steps:
the UE obtains an interference measurement metric value I of each slot of the continuous N slot slots based on one or more of a synchronization signal and a physical broadcast channel block SSB or a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH or a demodulation reference signal DMRS or a channel state information reference signal CSI-RSn。
3. The method of claim 1, wherein obtaining the mean E of the interference measurement metric values of the N slots comprises:
and acquiring an arithmetic average value, a geometric average value or a weighted average value of the interference measurement metric values of the N slots.
4. The method according to any one of claims 1 to 3, wherein the reporting, by the UE, the periodicity P and the offset Q to a base station comprises:
and the UE reports the period P and the offset Q to a base station as uplink control information UCI.
5. The method of claim 4, wherein reporting, by the UE, the period P and the offset Q to a base station as uplink control information UCI comprises:
and the UE reports the period P and the offset Q to the base station as UCI periods or non-periods.
6. A User Equipment (UE), the UE comprising:
a processing unit for obtaining an interference measurement metric value I of each slot of the N continuous slot slotsnAnd obtaining the mean value E of the interference measurement metric values of the N slots, wherein N is a slot index value,
Figure FDA0003231423790000021
the processing unit is further configured to obtain K slots of the N slots, where the K slots include a kth slot, a metric value of interference measurement of the kth slot is greater than (a × E), the kth slot is any one of the K slots, where K is not greater than N, and a is a constant value greater than 1;
the processing unit is further configured to determine M slots of the K slots, where index values of the M slots are spaced by a period P, where M is greater than or equal to 1 and less than or equal to K, and P is greater than or equal to 2;
the processing unit is further configured to determine an offset Q, where the offset Q is an index value of any slot of the M slots and a modulus value of the period P;
and the sending unit is used for reporting the period P and the offset Q to a base station.
7. The UE according to claim 6, wherein the processing unit is configured to obtain the interference measurement metric value I for each slot of the N consecutive slot slots based on one or more of a synchronization signal and a physical broadcast channel block SSB or a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH or a demodulation reference signal DMRS or a channel state information reference signal CSI-RSn。
8. The UE of claim 6, wherein the processing unit is configured to obtain an arithmetic average or a geometric average or a weighted average of the interference measurement metric values for the N slots.
9. The UE according to any one of claims 6 to 8, wherein the sending unit is configured to report the period P and the offset Q to a base station as uplink control information UCI.
10. The UE of claim 9, wherein the sending unit is configured to report the period P and the offset Q to the base station as UCI periods or aperiodic reports to the base station.
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