CN111556578A - Remote interference management method, base station, electronic device and readable storage medium - Google Patents

Remote interference management method, base station, electronic device and readable storage medium Download PDF

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Publication number
CN111556578A
CN111556578A CN201910115007.0A CN201910115007A CN111556578A CN 111556578 A CN111556578 A CN 111556578A CN 201910115007 A CN201910115007 A CN 201910115007A CN 111556578 A CN111556578 A CN 111556578A
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interference management
remote interference
base station
reference signal
management reference
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喻斌
钱辰
熊琦
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Beijing Samsung Telecom R&D Center
Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Priority to US17/430,154 priority Critical patent/US20220150012A1/en
Priority to PCT/KR2020/001921 priority patent/WO2020166946A1/en
Priority to EP20755258.9A priority patent/EP3921960A4/en
Priority to KR1020217029322A priority patent/KR20210116699A/en
Publication of CN111556578A publication Critical patent/CN111556578A/en
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    • 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
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a remote interference management method, a base station, an electronic device and a readable storage medium. The method comprises the following steps: determining a mapping relation between a base station set identifier and a remote interference management reference signal according to the received configuration information; sending a remote interference management reference signal according to the allocated base station set identification and the mapping relation; and/or detecting a remote interference management reference signal, determining base station set identification information through the detected remote interference management reference signal according to the mapping relation, and reporting the determined base station set identification information.

Description

Remote interference management method, base station, electronic device and readable storage medium
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a remote interference management method, a base station, an electronic device, and a readable storage medium.
Background
A wireless communication system that uses the same frequency resource for uplink and downlink communication includes a Time Division Duplex (TDD) system and a co-frequency simultaneous full Duplex system, and there is a phenomenon that an atmospheric waveguide (atmospheric waveguide) causes Interference (Remote Interference) in a Remote base station. Atmospheric waveguiding is a physical phenomenon that typically occurs under certain weather conditions, and rarefaction of the earth's atmospheric layer height causes a reduction in the refraction factor, thereby causing a bending of the signal towards the earth's surface. Such as a change of season, or winter in coastal areas, atmospheric wave guides often occur. In such an environment, the radio signal may encounter little attenuation and thus propagate far beyond the normal radiation propagation range, which may cause strong interference between base stations far apart in a system using the same frequency for uplink and downlink communication, and seriously affect the network performance. An effective Remote Interference Management (RIM) method is needed to assist the network in reducing or avoiding Remote Interference and guarantee network performance.
In general, in a TDD communication system, such as a TDD system protocol established by The 3rd generation partnership Project (3 GPP), there is a Gap time interval (Gap) to avoid that downlink transmission of a base station seriously interferes with uplink reception. But when atmospheric waveguiding occurs, very large gaps may need to be deployed to achieve this. If a larger Gap is always configured, the frequency spectrum utilization rate is low, and if a smaller Gap is configured, serious far-end base station interference is generated when an atmospheric waveguide occurs. In view of this phenomenon, 3GPP initiated corresponding research and proposed various remote interference management frameworks, as described in 3GPP technical report TS38.866, one core issue of remote interference management is how to detect an interfering base station (aggregate gNB) generating remote interference, implement measures for reducing interference to the interfered base station (Victim gNB), and, when finding that the atmospheric waveguide remote interference phenomenon disappears, how to restore the base station to normal network operation without the atmospheric waveguide, so as to improve network performance and efficiency.
Therefore, in order to solve the above core problems and provide sufficient flexibility of Remote Interference Management to ensure performance and effectiveness of Remote Interference Management, a flexible Management mechanism is needed to configure communication resources of various Remote Interference Management Reference signals (RIM-RS) in Remote Interference Management.
Disclosure of Invention
The application provides a remote interference management method, a base station, an electronic device and a readable storage medium, which are used for providing flexible and uniform management configuration of a remote interference management reference signal.
In a first aspect, the present application provides a method for remote interference management, including: the base station determines the mapping relation between the base station set identification and the remote interference management reference signal according to the received configuration information;
the base station sends a remote interference management reference signal according to the allocated base station set identifier and a mapping relation; and/or
And the base station detects the remote interference management reference signal, determines the identification information of the base station set according to the mapping relation and the detected remote interference management reference signal, and reports the determined identification information of the base station set.
In a second aspect, the present application provides a base station, comprising: a determination module, a sending module and/or a detection module,
the determining module is used for determining the mapping relation between the base station set identification and the remote interference management reference signal according to the received configuration information;
the sending module is used for sending the remote interference management reference signal according to the allocated base station set identifier and the mapping relation;
the detection module is used for detecting the remote interference management reference signal, determining the identification information of the base station set according to the mapping relation and the detected remote interference management reference signal, and reporting the determined identification information of the base station set.
In a third aspect, the present application provides an electronic device comprising:
a processor and a memory, the memory storing at least one instruction, at least one program, set of codes, or set of instructions, the at least one instruction, the at least one program, set of codes, or set of instructions being loaded and executed by the processor to implement the method as set forth in the first aspect of the application.
In a fourth aspect, the present application provides a computer readable storage medium for storing a computer instruction, program, code set or instruction set which, when run on a computer, causes the computer to perform a method as set forth in the first aspect of the present application.
According to the remote interference management method, the base station, the electronic device and the readable storage medium, the mapping relation between the base station set identifier and the remote interference management reference signal is determined according to the received configuration information, and then the remote interference management reference signal is sent and/or detected based on the mapping relation, so that signaling interaction information is simplified, and the communication indication flexibility of the remote interference management reference signals with multiple functions is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.
Fig. 1 is a schematic diagram of a remote interference management architecture according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a remote interference management method according to an embodiment of the present application;
fig. 3a is a first schematic diagram of information fields in a base station set identifier according to an embodiment of the present disclosure;
fig. 3b is a schematic diagram two of each information field in the base station set identifier according to the embodiment of the present application;
fig. 4 is a first schematic diagram illustrating a mapping relationship between a base station set identifier and a RIM-RS according to an embodiment of the present application;
fig. 5 is a second schematic diagram of a mapping relationship between a base station set identifier and a RIM-RS according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
As will be understood by those skilled in the art, a "base station" or "base station apparatus" as used herein includes both apparatus for a wireless signal receiver, which includes only wireless signal receivers without transmit capability, and apparatus for receiving and transmitting hardware, which includes apparatus for receiving and transmitting hardware capable of two-way communication over a two-way communication link.
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
First, a remote interference management architecture related to the present application is described, as shown in fig. 1, the operation of the architecture is as follows:
1. the atmospheric wave guide phenomenon occurs so that remote interference occurs.
2. The method comprises the steps that the Victim base station suffers interference with atmospheric waveguide interference characteristics and starts to send RIM-RS1, and RIM-RS1 is used for assisting an aggreessor base station to find out that the interference is caused to the vicctim base station and detecting the influence of the interference on the uplink resources caused by the vicctim base station; and detecting the RIM-RS1 by the aggresorbase station.
3. Once the RIM-RS1 is detected, the aggregator base station starts to take remote interference reduction measures and sends RIM-RS2 to inform the Victim base station whether remote interference caused by an atmospheric waveguide still exists, wherein the interference reduction measures may include Gap with large time domain configuration, antenna downward inclination angle adjustment in spatial domain, transmission power reduction in power domain, frequency domain staggering and other measures.
4. The Victim base station can turn on RIM-RS2 detection in step 2, continue sending RIM-RS1 as long as RIM-RS2 is detected, and stop sending RIM-RS1 if no RIM-RS2 is detected and the interference has fallen back to a certain level.
5. The aggreessor base station continues to take interference reduction measures until no RIM-RS1 is detected, and then the aggreessor base station can resume the previous settings.
To solve the problems in the prior art, the present application provides a flexible and unified remote interference management reference signal configuration and a corresponding remote interference management configuration indication method, which can be applied to the remote interference management architecture, where the remote interference management architecture is one of interference management architectures in 3GPP technical report TS38.866, and the present application provides a flexible and unified remote interference management reference signal configuration and a corresponding remote interference management configuration indication method, which can also be applied to other interference management architectures in 3GPP technical report TS 38.866. The scheme of the application can simplify the configuration signaling interaction information and provide the configuration/communication indication flexibility of the remote interference management reference signals with various functions.
An embodiment of the present application provides a remote interference management method, as shown in fig. 2, the method includes:
step S201: the base station determines the mapping relation between the base station set identification and the remote interference management reference signal according to the received configuration information;
step S202: the base station sends a remote interference management reference signal according to the allocated base station set identifier and a mapping relation;
step S203: and the base station detects the remote interference management reference signal, determines the identification information of the base station set according to the mapping relation and the detected remote interference management reference signal, and reports the determined identification information of the base station set.
In this embodiment of the present application, the base station may receive configuration information configured by an Operation Administration and Maintenance (OAM) unit of the network, and further, in step S201, determine a mapping relationship between a base station set identifier and a remote interference management reference signal according to the configuration information, so as to simplify signaling interaction. Therefore, the network can carry out effective configuration of RIM-RS resources through the gNB ID/gNB set ID, and meanwhile, the base station can acquire corresponding gNB ID/gNB set ID information through the detected RIM-RS, so that interference management is facilitated.
The base station set identifier specifically includes a base station identifier (gbb ID) and a base station set identifier (gbb set ID), when only one base station exists in the base station set, the gbb set ID is the gbb ID, that is, the gbb ID is a special case of the gbb set ID when only one base station exists, and for convenience of description, in the embodiment of the present application, the gbb set ID of the base station set is used for description in a unified manner.
Further, the base station executes step S202 and/or step S203 according to the mapping relationship;
it should be noted that the sequence of step S202 and step S203 can be changed, for example, RIM-RS1 is detected before RIM-RS2 is sent. In practical applications, for different base stations, each base station may perform the interaction of step S202 and/or step S203 to complete the remote interference management.
Specifically, the base station may receive a gNB set ID (S) with a predetermined bit length (for convenience of description, hereinafter referred to as L bit length) assigned by the OAM, and then in step S202, the base station may transmit a RIM-RS when the transmission trigger condition is satisfied according to the gNB set ID and a mapping relationship between the gNB set ID and the RIM-RS, until receiving the transmission stop information.
In step S203, the base station may perform RIM-RS detection according to the configuration of OAM, and obtain and report corresponding information from the detected RIM-RS according to the mapping relationship between the gNB set ID and the RIM-RS, specifically, derive the gNBset ID information and report the information to OAM. In practical application, OAM may configure one or more detection time windows, and the base station may report the detected information of the gNB set ID after performing RIM-RS detection within the detection time window.
According to the remote interference management method provided by the embodiment of the application, the mapping relation between the base station set identifier and the remote interference management reference signal is determined according to the received configuration information, and then the remote interference management reference signal is sent and/or detected based on the mapping relation, so that the signaling interaction information is simplified, and the configuration/communication indication flexibility of the remote interference management reference signal with multiple functions is improved.
In the embodiment of the application, in order to better cope with remote interference caused by an atmospheric waveguide, a TDD network may configure, for remote interference management, the following types of remote interference management reference signals:
(1) remote interference management reference signal for far base station interference detection (also known as "far base station interference detection" RIM-RS1)
(2) Remote interference management reference signals for near base station interference detection (also known as "near base station interference detection" RIM-RS1)
Wherein, RIM-RS1 of the 'near base station interference detection' and RIM-RS1 of the 'far base station interference detection' are respectively used for the interference detection of near/far base stations; specifically, the RIM-RS1 of the far base station interference detection and the RIM-RS1 of the near base station interference detection correspond to the relative distances of the two RIM-RSs with respect to a certain time reference point, the relative distance is large for the far base station interference detection, the relative distance is small for the near base station interference detection, and the near/far attribute of the RIM-RS can be implicitly judged through the relative distance in the actual configuration without being indicated in a display mode.
(3) Remote interference management reference signal for indicating whether remote interference still exists (also referred to as "RIM-RS 2 for detecting whether remote interference still exists")
The RIM-RS2 is used for the aggregate gNB (interfering base station) to inform the Victim gNB (interfered base station) whether remote interference caused by the atmospheric waveguide is still present.
In addition, two types of remote interference management reference signals can be configured as follows:
(1) remote interference management reference signals indicating insufficient interference reduction (Not enough interference reduction) (also known as RIM-RS1 indicating "insufficient interference reduction")
The RIM-RS1 is used for Victim gbb transmission when subjected to interference with atmospheric waveguide interference characteristics.
(2) Remote interference management reference signals indicating that interference reduction is sufficient (Enough reduction) (also referred to as indicating "interference reduction sufficient" RIM-RS1)
The RIM-RS1 is used for Victim gbb transmissions when interference is found to be reduced to an acceptable level.
The embodiment of the present application provides a feasible implementation manner, and the configuration information of the OAM configuration includes, but is not limited to, at least one of the following:
(1) pattern period P of downlink and uplink
Specifically, a single downlink/uplink pattern period (DL-UL pattern period) or a cascaded downlink/uplink pattern period (concatenated DL-UL pattern period).
Wherein, the single downlink and uplink period P contains M P1 DL-UL switching point (DL-UL switching point), and a single DL-UL pattern period P is the oneA period length of a DL-UL switching period (also referred to as a DL-UL switching period).
Cascading descending and ascending pattern period P is from MPMore than or equal to 2 descending and ascending patterns are cascaded and contain MPA down/up conversion point, and the cascade down/up pattern period P is MPConversion period p corresponding to each of the down and up patternsnIs a sum of
Figure BDA0001969819780000071
(2) Transmission period (also referred to as RIM-RS transmission period) T of remote interference management reference signal
The RIM-RS transmission period T is a single downlink and uplink pattern period P or an integral multiple of the cascade downlink and uplink pattern period P, namely T is N × P, and each RIM-RS transmission period T contains
Figure BDA0001969819780000072
(N，MpInteger) of RIM-RS transmission occasions, i.e., each down-uplink transition period is one RIM-RS transmission occasion.
(3) Time slot allocation information of each type of remote interference management reference signal in a transmission period of the remote interference management reference signal
I.e., RIM-RS1 and RIM-RS2, allocate information for the time period within RIM-RS transmission period T.
Specifically, the time slot allocation information of each type of remote interference management reference signal in the transmission cycle of the remote interference management reference signal is as follows: the sending period T of the remote interference management reference signal comprises two time periods, wherein the former time period is the time period T of the remote interference management reference signal used for interference detection1The latter time period is a remote interference management reference signal time period T for indicating whether remote interference still exists2Wherein T ═ T1+T2。
As an example, the time period allocation information may include: the transmission period T is divided into two periods, the former period being a RIM-RS1 period,the latter time period is the RIM-RS2 time period. Then, the time period allocation information may be used in accordance with T, respectively1＝N1× P and T2＝N2× P, wherein T1Time period includes
Figure BDA0001969819780000081
Individual RIM-RS transmission timing, T2Time period includes
Figure BDA0001969819780000082
And the time periods are divided by taking P as a unit, namely the time periods are integral multiples of P.
Alternatively, the time period allocation information may be directly configured to: n is a radical of1×MpThe sending time of each RIM-RS is the previous time period for RIM-RS 1; and N2×MpThe RIM-RS transmission time interval is used for RIM-RS2, and is divided into unit of RIM-RS transmission time interval, which is integral multiple of RIM-RS transmission time interval.
It can be understood that MpThe case of 1 is also applicable to the above two modes.
The RIM-RS sending period T is segmented front and back, and RIM-RS1 and RIM-RS2 are sent respectively, so that the functions of the RIM-RS sending period T are guaranteed, the waiting time is reduced, and meanwhile, the configuration signaling can be simplified.
(4) Repetition number R of each type of remote interference management reference signalx
Namely RIM-RS1 of 'near base station interference detection', RIM-RS1 of 'far base station interference detection' and RIM-RS2x，x＝{a，b，c}。
Specifically, the repetition number R of RIM-RS1 of' near base station interference detectionaRepetition number R of RIM-RS1 of' far base station interference detectionbAnd the number of repetitions R of RIM-RS2cThe remote interference management reference signals may be configured separately or uniformly, that is, the repetition times of the respective types of remote interference management reference signals may be configured to be the same or different.
In one possible implementation, the remote interference for interference detection of a remote base stationThe number of repetitions of the management reference signal is the same as that of the remote interference management reference signal for near base station interference detection, that is, the number of repetitions of RIM-RS1 for "far base station interference detection" and the number of repetitions of RIM-RS1 for "near base station interference detection" may be configured to be the same, and then it may be directly indicated that the number of repetitions of RIM-RS1 is R ═ Ra+Rb。
(5) Remote interference management reference signal frequency domain resource number Nf
Namely the number N of RIM-RS frequency domain resourcesf。
(6) Set of sequences available on each remote interference management reference signal transmission occasion
Each RIM-RS transmission opportunity contains NsThe set of available sequences of RIM-RS of the available sequences, including whether the sequence domain is configured with two RIM-RS1 indicates "sufficient interference reduction" and insufficient interference reduction ", respectively, i.e. whether the sequence domain is configured with RIM-RS1 indicating" insufficient interference reduction "and" sufficient interference reduction "RIM-RS 1. When RIM-RS1 indicating "insufficient interference reduction" and RIM-RS1 "sufficient interference reduction" are configured, NsHalf of the set of available sequences of RIM-RS is used to indicate "insufficient interference reduction" RIM-RS1 and half is used to indicate "sufficient interference reduction" RIM-RS 1. N is a radical ofsThe set of RIM-RS available sequences of the available sequences can all be used for RIM-RS 2.
In this embodiment of the present application, the configuration information of the OAM configuration may further include: remote interference management reference signal is transmitted symbol position within the RIM-RS transmission time.
The OAM also configures a specific RIM-RS to be located at a specific symbol-level position within the uplink and downlink switching period. That is, the sending time of the RIM-RS is time domain location information at the level of the downlink/uplink conversion period, and in the downlink/uplink conversion period, the OAM may configure a reference time point of the RIM-RS symbol level sending time.
For example, the reference time point is a downlink transmission boundary in a downlink/uplink pattern switching period, the downlink transmission boundary may be configured by referring to TDD-UL-DL-Config Common configuration information in 3GPP TS38.331 document, and then configuring the RIM-RS symbol level transmission start point to be the second symbol relative to the reference time point.
For example, the RIM-RS occupies 2 OFDM symbols, and if a downlink transmission boundary is configured to be a reference time point at a boundary of a last downlink slot (slot) in the downlink and uplink pattern, and a slot has 14 symbols, the start position of the RIM-RS may be configured to be 0 th to 12 th symbols of the slot at the reference time point; if the downlink reference time point is configured as the last downlink symbol in the downlink and uplink pattern, the transmission symbol position of the RIM-RS may be configured as the first 2 symbols of the downlink reference time point, and is consistent with the boundary of the reference time point (boundary alignment).
Further, the base station may determine a Mapping relationship between the gNB set ID and the RIM-RS with the length of L bits in the network according to the above configuration information, which may also be referred to as a Mapping Rule (Mapping Rule) or a unified Mapping Rule.
The embodiment of the present application provides a feasible implementation manner for step S202, which specifically includes:
step S2021: the base station acquires the remote interference management reference signal resource information in the sending period corresponding to the base station set identification according to the base station set identification and the mapping relation;
that is, the base station can obtain corresponding RIM-RS resource information, such as sequence domain information, time domain information and frequency domain information { I } of the RIM-RS resource configuration according to the determined mapping rule between the RIM-RS resource information and the gNB set ID of the RIM-RS in the transmission period T and the base station can obtain the corresponding RIM-RS resource information according to the configured gNB set IDf、Io、Is}。
In the remote interference management, the base station may be notified to receive a gbb set ID with an L bit length configured by OAM, and the base station may automatically acquire corresponding RIM-RS resource information through the gbb set ID.
Step S2022: and the base station transmits the remote interference management reference signal on the resource corresponding to the remote interference management reference signal resource information according to the transmission period.
Specifically, when the transmission trigger condition is satisfied, RIM-RS transmission is performed on the corresponding resource with the transmission period T as a period until the transmission stop information is received, for example, transmission is performed at the corresponding RIM-RS time and frequency domain position.
Similarly, in step S203 in the embodiment of the present application, the base station passes through the detected RIM-RS information { I }f、Io、IsAnd acquiring corresponding gNB set ID information with L bit length, and reporting.
In this embodiment of the present application, a feasible implementation manner is provided for step S2021, and specifically, according to an indication of at least one of the following information fields included in the base station set identifier, the base station acquires remote interference management reference signal resource information in one RIM-RS transmission cycle corresponding to the base station set identifier according to the mapping relationship, that is, the mapping rule is to acquire RIM-RS resources in the RIM-RS transmission cycle T configured by OAM corresponding to the gNB set ID through an indication of the following information field included in the gNB set ID with an L bit length:
(1) sequence indication information field
For example is l1Bit-long sequence indication information fields, specifically:
Figure BDA0001969819780000111
wherein,
Figure BDA0001969819780000114
the log is the logarithm operation; the first1The bit value corresponding to the bit indicates the RIM-RS sequence index that the base station should transmit at each RIM-RS transmission occasion corresponding to the gNBset ID.
As described above, in the embodiment of the present application, two RIM-RS1 of the OAM configurable sequence field indicate "interference reduction is sufficient" or "interference reduction is not sufficient", respectively.
When two RIM-RSs 1 of the OAM unconfigured sequence field indicate "sufficient interference reduction" or "insufficient interference reduction", respectively, a bit value corresponding to a bit of the sequence indication information field corresponds to an index of each available sequence in the available sequence set, for indicating each available sequence of the base station corresponding to the base station set identification on the corresponding remote interference management reference signal transmission occasion.
Namely, it is
Figure BDA0001969819780000112
The bit value corresponding to the bit is NsThe index of one of a set of available sequences, e.g. I, of available sequencess＝{0，1，…，Ns-1} indicating one sequence that the base station can use at the corresponding RIM-RS transmission occasion for the gNB set ID.
When two RIM-RSs 1 of the base station OAM unconfigured sequence field indicate "sufficient interference reduction" or "insufficient interference reduction", respectively, or when the sequences transmitted by the RIM-RS transmission occasions are used for RIM-RS2, the bit values of the sequence indication information field correspond to the indices of the sequences used at the respective RIM-RS transmission occasions, corresponding to the gNB set ID, in the available sequence set.
When two RIM-RS1 of the sequence field configured by OAM indicate "sufficient interference reduction" or "insufficient interference reduction", respectively, the bit value corresponding to the bit of the sequence indication information field corresponds to the sequence index of each available sequence in the available sequence set, wherein half of the sequence indexes corresponding to the available sequence set are used for indicating the remote interference management reference signal of "insufficient interference reduction" and the other half of the sequence indexes are used for indicating the remote interference management reference signal of "sufficient interference reduction". By way of example, NsThe first half of the set of available sequences for RIM-RS of the available sequences is used to indicate "insufficient interference reduction" RIM-RS1, and the second half is used to indicate "sufficient interference reduction" RIM-RS1, and vice versa. I.e. when the sequence index in the available sequence corresponding to the bit value is in the first half of the sequence, i.e. corresponds to
Figure BDA0001969819780000113
When the sequence for instructing the base station corresponding to the base station set identifier to transmit on the corresponding remote interference management reference signal transmission occasion is used for instructing the "interference reduction insufficient" RIM-RS1, and the bit valueWhen the sequence index in the corresponding available sequence is in the second half of the sequence, i.e. corresponds to
Figure BDA0001969819780000121
Figure BDA0001969819780000122
The sequence used to indicate the base station to which the base station set identity corresponds to transmit on the respective remote interference management reference signal transmission occasion is used to indicate an "interference reduction sufficient" RIM-RS1, and vice versa. At this time, RIM-RS1 resources indicating "sufficient interference reduction" or "insufficient interference reduction" may be configured separately for a certain base station by configuring two gNB setids.
Alternatively, when two RIM-RS1 of the sequence field configured by OAM indicate "sufficient interference reduction" or "insufficient interference reduction", respectively, the bit value corresponding to the bit of the sequence indication information field corresponds to the index of each pair of available sequences in the available sequence set for instructing the base station set to identify each pair of available sequences indicating "sufficient interference reduction" or "insufficient interference reduction", respectively, i.e. l1In (1)
Figure BDA0001969819780000123
The bit corresponds to a bit value of NsAn index of a pair of sequences in a set of available sequences, e.g.
Figure BDA0001969819780000124
Indicating a pair of sequences that the base station can use at the respective RIM-RS transmission occasion for which the gNB set ID corresponds, respectively indicating "sufficient interference reduction" or "insufficient interference reduction", while the OAM configures which sequence of each pair of sequences is used to indicate "sufficient interference reduction", which is used to indicate "insufficient interference reduction", and l1Is left in
Figure BDA0001969819780000125
The status grant reservation is not used.
(2) Time indication information field
For example is l2A time indication information field of a long bit, specifically:
Figure BDA0001969819780000126
wherein, the2The bit value corresponding to the bit indicates the time domain position of each RIM-RS transmission opportunity in the RIM-RS transmission period T corresponding to the gNB set ID.
In another way, if a larger total bit overhead can be provided, specifically:
Figure BDA0001969819780000127
further segmentation is as follows:
Figure BDA0001969819780000128
and
Figure BDA0001969819780000129
the mapping rules are the same for the time domain indications of RIM-RS1 and RIM-RS2, respectively.
Specifically, in one possible implementation, the time indication information field corresponds to each remote interference management reference signal transmission opportunity within the transmission period for which the time domain position number is performed.
Simply put, within a period T, a RIM-RS is transmitted
Figure BDA0001969819780000131
(N，MpInteger) RIM-RS transmission occasions, time domain sequential numbering, e.g. IoIs {0, 1, …, N × Mp-1}. Then, l2Bit-long time indication information field
Figure BDA0001969819780000132
A status value (Code Point or Code State) may indicate that gNB set ID is paired withShould be continuous Ra+RbTime domain position number of the first sending opportunity in RIM-RS1 sending opportunities in RIM-RS sending period T
Figure BDA0001969819780000133
Figure BDA0001969819780000134
Is 12Bit long time information field front
Figure BDA0001969819780000135
Decimal values corresponding to binary states
Figure BDA0001969819780000136
Figure BDA0001969819780000137
One of, i.e. front
Figure BDA0001969819780000138
The state values indicate the RIM-RS1 time period T1The corresponding transmission opportunity number in the table. And l2 bits long time indication information field
Figure BDA0001969819780000139
Each state value may indicate a consecutive R to which the gNB set ID correspondscTime domain position number of the first sending opportunity in RIM-RS2 sending opportunities in RIM-RS sending period T
Figure BDA00019698197800001310
Figure BDA00019698197800001311
Is 12Decimal value corresponding to binary state of time information field with length of bit
Figure BDA00019698197800001312
Figure BDA00019698197800001313
One of them is that the first one is,after that
Figure BDA00019698197800001314
The state values indicate the RIM-RS2 time period T2The corresponding transmission opportunity number in the table.
Alternatively, in another possible implementation manner, the time indication information field corresponds to each remote interference management reference signal transmission opportunity in a transmission cycle in which time domain numbering is performed according to the time segment allocation information.
Briefly, RIM-RS transmission timing in a RIM-RS transmission period T is according to T1Time period and T2Time periods are respectively numbered in time domain, T1Comprises
Figure BDA00019698197800001315
Sending opportunity, number of RIM-RS1
Figure BDA00019698197800001316
Is {0, 1, …, N1×Mp-1}，T2Time period includes
Figure BDA00019698197800001317
Sending opportunity, number of RIM-RS2
Figure BDA00019698197800001318
Is {0, 1, …, N2×Mp-1}. Then l2Bit-long time indication information field
Figure BDA00019698197800001319
Each state value may indicate a consecutive R to which the gNB set ID correspondsa+RbTime domain position number of the first sending opportunity in RIM-RS1 sending opportunities in RIM-RS sending period T
Figure BDA0001969819780000141
Figure BDA0001969819780000142
Is 12Bit long time information field front
Figure BDA0001969819780000143
Decimal values corresponding to binary states
Figure BDA0001969819780000144
One of them. And l2 bit long time indication information field
Figure BDA0001969819780000145
The individual status values indicate consecutive R's to which the gNB set ID correspondscTime domain position number of first sending opportunity in RIM-RS2 sending opportunities in period T
Figure BDA0001969819780000146
Figure BDA0001969819780000147
Is 12Decimal value corresponding to binary state in bit time information field
Figure BDA0001969819780000148
Figure BDA0001969819780000149
One of them.
In this embodiment of the present application, no matter which time domain numbering rule is adopted, the time indication information fields of the base station set identifiers corresponding to the remote interference management reference signals of each type respectively correspond to the sending timings of the remote interference management reference signals of each type in the sending period. Briefly, when a base station needs to configure RIM-RS1 and RIM-RS2 at the same time, two gNB set IDs can be allocated to notify the base station of its RIM-RS1 and RIM-RS2 configuration information, respectively, e.g., the transmission timing indicated by the status value of the time indication information field of one gNB set ID is in the RIM-RS1 period T1Within another gNBset ID, the transmission opportunity indicated by the state value of the time indication information field is in RIM-RS2 time period T2This distinguishes between RIM-RS transmission occasions for the two gNB set IDs for RIM-RS1 and RIM-RS2, respectively.
(3) Frequency domain indication information field
For example is l3Bit-long frequency domain indication information field, specifically:
Figure BDA00019698197800001410
wherein, the3The bit value corresponding to the bit indicates which frequency domain transmission position configured for OAM the RIM-RS to be transmitted by the base station at each RIM-RS transmission opportunity corresponds to the gNB set ID.
In the embodiment of the present application, the frequency domain indication information field corresponds to an index of a frequency domain position identified by the base station set. Illustratively, OAM configuration NfIndividual frequency domain position and numbering according to frequency domain position,/3The bit-long frequency domain indication information field indicates the frequency domain position index corresponding to the gNB setID, e.g., If＝{0，1，…，Nf-1, in practical application, may be NfWhen 1, the frequency domain indication information field is default.
In this embodiment of the present application, the position of each information field corresponding to L bits may be predefined, for example, each information field corresponds to a position in a bit identified by the base station set according to any one of the following orders:
(1) the sequence indication information field, the time indication information field and the frequency domain indication information field are mapped in sequence from the lowest bit of the base station set identifier. That is, as shown in FIG. 3a, each information field is mapped to L in order from the Least Significant Bit (LSB) of the L bits gNB set ID1Bit-long sequence indicator information field, l2Bit-long time indication information field and l3The bit-long frequency domain indicates an information domain.
(2) And mapping a sequence indication information domain, a time indication information domain and a frequency domain indication information domain in sequence from the highest bit of the base station set identifier. That is, as shown in FIG. 3b, the information fields are sequentially mapped from the Most Significant Bit (MSB) of the L bits gNB set ID to L1Bit-long sequence indicator information field, l2Bit-long time indication information field and l3The bit-long frequency domain indicates an information domain.
(3) Those skilled in the art will appreciate that fig. 3a and 3b are merely examples and should not be construed as limiting the present application. In practice, suitable variations based on these examples are also applicable to the present application and are therefore to be included within the scope of the present application, for example, the mutual order of the information fields may be predefined in any combination.
In the embodiment, the TDD network configures RIM-RS1 and RIM-RS2 for remote interference management, but does not configure two reference signals, namely RIM-RS1 for "far base station interference detection" and RIM-RS1 for "near base station interference detection", and only configures one RIM-RS1 transmission position, that is, near/far function RIM-RS is not distinguished, as described below with reference to fig. 4.
The OAM configuration information is as follows:
(1) the network configuration adopts a single downlink and uplink pattern period, and the configured single downlink and uplink pattern period P is 10ms (ms is millisecond).
(2) The length of the network configuration RIM-RS transmission period T includes 8192 uplink and downlink pattern periods, i.e., M is included in a single uplink and downlink pattern period P of T-N × P-81920 ms.P1 dl/ul transition point, then the RIM-RS transmission period T contains
Figure BDA0001969819780000151
And sending the RIM-RS.
(3) Network configuration RIM-RS sending period T front T1＝N1× P61440 ms time period for RIM-RS1, remaining T2＝N2× P20480 ms time period for RIM-RS2, then T16144 RIM-RS1 sending opportunities at the time end, T22048 RIM-RS2 sending opportunities are arranged at the time end, the downlink and uplink pattern conversion period is one sending opportunity every 10ms, and 8192 sending opportunity sequence numbers I in the RIM-RS sending period ToIs the number {0 ~ 8191 }.
(4) The network configures the sending symbol position of RIM-RS as the last two downlink symbols in the downlink and uplink pattern conversion period.
(5) Network configuration 'near base station interference detection' RIM-RS1 repetition times RaOf 2 and RIM-RS2Number of repetitions RcSince the "far base station interference detection" RIM-RS1 is not configured, the number of repetitions R is 2bAnd (4) default.
(6) Number N of RIM-RS frequency domain resourcesf＝1。
(7) Each RIM-RS transmission opportunity has NsA RIM-RS available sequence set of 8 available sequences, the 8 available sequences in the available sequence set being ordered. The OAM configured sequence domain RIM-RS1 may indicate "interference reduction sufficient" or "interference reduction insufficient" functionality, the sequences of the available sequence set are divided into two parts, the first half of the sequences in the sequence set are used as RIM-RS1 indicating "interference reduction insufficient", i.e. the first 4 sequences, and the other half are used as RIM-RS1 indicating "interference reduction sufficient", i.e. the last 4 sequences.
Based on the above information, the base station may determine that the gNB set ID is configured with L ═ 15 bits, and the mapping rule between the 15-bit gNBset ID and the RIM-RS configuration resource is:
the sequence indication information field is as long as
Figure BDA0001969819780000161
A bit. These 3 bits are the lowest 3 bits of the 15 bits of the gNB set ID, as shown in fig. 4. These 3-bit values indicate the indices corresponding to the set of 8 available sequences of the configuration. When the sequences transmitted by the RIM-RS transmission opportunity are used for RIM-RS1, the first 4 sequences, i.e., IsThe last 4 sequences of RIM-RS1, i.e., I, that can be used as "interference reduction not sufficient", are 0, 1, 2, 3}sThe {4, 5, 6, 7} is used as the "interference reduction sufficient" RIM-RS 1. The base station can judge whether the RIM-RS1 resource is used for indicating that the interference reduction is not enough or the interference reduction is enough through the fact that the sequence corresponding to the gNB set ID is positioned in the first 4 sequences or the last 4 sequences in the available sequence set. When the sequences transmitted by the RIM-RS transmission opportunity are used for RIM-RS2, the 3-bit value indicates one sequence index, i.e., I, in the set of 8 available sequencess＝{0，1，…，7}。
The length of the time indication information field is
Figure BDA0001969819780000162
A bit. These 12 bits are the upper 12 bits of the 15 bits of the gNB set ID, as shown in fig. 4. 12 bits ahead
Figure BDA0001969819780000163
The status values indicate the number of the first transmission opportunity in the RIM-RS transmission period T in 2 consecutive RIM-RS1 transmission opportunities (repetition number is 2) corresponding to the gNB set ID
Figure BDA0001969819780000164
Figure BDA0001969819780000165
Is 12One of decimal values {0, 1, …, 3071} corresponding to the first 3072 binary states of the bit-long time information field, such as 000000000000, this state value indicates that the transmission timing is at the 0 and 1 positions. The same as others
Figure BDA0001969819780000171
The state value indicates the number of the first of 2 consecutive RIM-RS2 transmission occasions corresponding to the gNB set ID within the RIM-RS transmission period T
Figure BDA0001969819780000172
Figure BDA0001969819780000173
Is 12The bit-long time information field binary state corresponds to one of the decimal values 3072, 3073, …, 4095.
The length of the frequency domain indication information domain is
Figure BDA0001969819780000174
There is only one frequency domain position, no bit information is needed, and default.
From the above example, according to the determined mapping rule, the base station can obtain the RIM-RS resource information corresponding to the gNB setID, such as time domain, frequency domain, and sequence domain information, etc., through the gNB set ID, and can obtain whether the RIM-RS configuration is used for RIM-RS1 or RIM-RS2 through the time indication information domain status value in the gNB set ID. Similarly, the gNB Set ID can be reversely deduced through the detected time domain, frequency domain and sequence domain information of the RIM-RS, so that the report of the gNB Set ID is realized. As can also be seen from fig. 4, the OAM may configure a specific RIM-RS at a specific symbol level position in the uplink and downlink conversion period, where the symbol level position may be configured, but may not affect the mapping rule configured by the gNB set ID and the RIM-RS, that is, the network OAM may separately bind the RIM-RS symbol position with the gNB set ID in each downlink and uplink pattern conversion period, and the RIM-RS in fig. 4 occupies the last two downlink symbol positions in the downlink and uplink pattern conversion period and may not affect the mapping relationship between the gNB set ID and the RIM-RS resource configuration.
In the present embodiment, the TDD network configures RIM-RS1 and RIM-RS2 for remote interference management, and the same base station configures "far base station interference detection" RIM-RS1 and "near base station interference detection" RIM-RS1, that is, configures two RIM-RS1 transmission positions to distinguish near/far functions. The OAM configuration information is as follows:
(1) the network configuration adopts a cascading downlink and uplink pattern period, and the configured cascading downlink and uplink pattern period P is 10ms (ms is millisecond). Cascading descending and ascending pattern period P is from MP2 descending and ascending patterns are cascaded, and each of the 2 descending and ascending patterns has 2 descending and ascending conversion points and a conversion period pnAre all 5ms, i.e.
Figure BDA0001969819780000181
(2) The length of the network configuration RIM-RS transmission period T is 32768 cascaded uplink and downlink pattern periods, namely T-N × P-327680 ms. cascaded uplink and downlink pattern periods P contain MP2 dl/ul transition points, then the RIM-RS transmission period T contains
Figure BDA0001969819780000182
And sending the RIM-RS.
(3) Network configuration RIM-RS sending period T front T1＝N1× P245760 ms time period for RIM-RS1, remaining T2＝N2× P81920 msThe time segment is used for RIM-RS2, then T1The time period includes N1×Mp49152 RIM-RS transmission occasions, T2The time period includes N2×Mp16384 RIM-RS transmission occasions, each 10ms cascaded downlink and uplink pattern has two RIM-RS transmission occasions, and 65536 transmission occasion sequence numbers I in the period ToIs {0 ~ 65535} number.
(4) The network configures the sending symbol positions of RIM-RS in the last two downlink symbols in the conversion period of a downlink and uplink pattern 1 and the last two symbols of the last complete downlink time slot in the conversion period of a downlink and uplink pattern 2 in the cascade downlink and uplink patterns;
(5) network configuration 'near base station interference detection' RIM-RS1 repetition times R a1, RIM-RS1 repetition times R of "far base station interference detectionbNumber of repetitions R of 1 and RIM-RS2c2; the repetition number of the RIM-RS2 is 2, that is, two RIM-RS2 are transmitted twice at two RIM-RS transmission occasions corresponding to two consecutive downlink and uplink switching periods in the cascaded downlink and uplink pattern.
(6) Number N of RIM-RS frequency domain resourcesf2. Two common frequency domain reference starting point positions are configured, all base stations know how the RIM-RS maps to the frequency domain, and the common reference starting points are numbered 0 and 1.
(7) Each RIM-RS transmission opportunity has NsA RIM-RS available sequence set of 8 available sequences, the 8 available sequences in the available sequence set being ordered. The RIM-RS1 of the OAM unconfigured sequence field may indicate an "interference reduction sufficient" or "interference reduction insufficient" function.
Based on the above information, the base station may determine that the gNB set ID is configured with L ═ 19 bits, and the mapping rule between the 19-bit gNBset ID and the RIM-RS configuration resource is:
the sequence indication information field is as long as
Figure BDA0001969819780000183
A bit. These 3 bits are the lowest 3 bits of the 19-bit gNB set ID, indicating the index of one of the configured 8 available sequence sets, as shown in fig. 5. Sequences transmitted when RIM-RS transmission opportunitiesFor RIM-RS1 or RIM-RS2, a 3-bit value indicates a sequence index of 8 available sequences, i.e., Is＝{0，1，…，7}。
The length of the time indication information field is
Figure BDA0001969819780000191
A bit. These 15 bits are the 4 th to 18 th bits from the lowest bit of the 19-bit gNB set ID, as shown in fig. 5. 15 bits before
Figure BDA0001969819780000192
The state values indicate the number of the first transmission opportunity in the RIM-RS transmission period T in the continuous 2 RIM-RS1 transmission opportunities (one time of the transmission opportunity is RIM-RS1 of 'near base station interference detection' and the other time of the transmission opportunity is RIM-RS1 of 'far base station interference detection') corresponding to the gNB set ID
Figure BDA0001969819780000193
Figure BDA0001969819780000194
Is 12One of the decimal values {0, 1, …, 24560 } corresponding to the first 24576 binary states of the bit-long time information field, for example, 000000000000000, indicates that the transmission timing is at the 0 th and 1 st positions. The same as others
Figure BDA0001969819780000195
The state value indicates the number of the first of 2 consecutive RIM-RS2 transmission occasions corresponding to the gNB set ID within the RIM-RS transmission period T
Figure BDA0001969819780000196
Figure BDA0001969819780000197
Is 12The bit-long time information domain binary state corresponds to one of the decimal values 24576, 24577, …, 32767.
The length of the frequency domain indication information domain is
Figure BDA0001969819780000198
The 19 th bit from the lowest bit of the 19-bit gNB set ID, i.e. the highest bit, and the 1-bit state value respectively corresponds to the index of the two configured frequency domain positions, i.e. the common frequency domain reference point number.
From the above example, according to the determined mapping rule, the base station can obtain the RIM-RS resource information corresponding to the gNB setID, such as time domain, frequency domain, and sequence domain information, etc., through the gNB set ID, and can obtain whether the RIM-RS configuration is used for RIM-RS1 or RIM-RS2 through the time indication information domain status value in the gNB set ID. Similarly, the gNB Set ID can be reversely deduced through the detected time domain, frequency domain and sequence domain information of the RIM-RS, so that the report of the gNB Set ID is realized. As can also be seen from fig. 5, the OAM may configure a specific RIM-RS at a specific symbol level position within the uplink and downlink switching period, which may be configured without affecting the mapping rules of the gNB set ID and RIM-RS configuration, i.e., the network OAM may separately unbundle the RIM-RS symbol position with the gNB set ID within each DL-UL pattern switching period, and the RIM-RS in fig. 5 is configured with two symbol level positions, which are respectively used for RIM-RS1 of "near base station interference detection" and RIM-RS1 of "far base station interference detection".
In the embodiment of the present application, regarding the RIM-RS sequence configuration, it can further include configuring N on each RIM-RS transmission opportunity in the following possible mannerssThe available sequences. Specifically, the initial state seed of the sequence in each transmission cycle changes according to time or transmission timing based on the initial state of the initial state seed.
In one possible implementation, the RIM-RS sequence is a Gold sequence. Initial state of Gold sequence
Figure BDA0001969819780000201
Configured by OAM. Wherein,
Figure BDA0001969819780000202
is n thsInitial state seed of each sequence.
In the embodiment of the application, the initial state seed is changed according to time based on the initial state, and the possible change modes are as follows:
and counting the periods of the descending and ascending patterns according to a preset change step length and the maximum change length of the initial state seeds, wherein the initial state seeds change according to the counting result and the initial state.
Specifically, the OAM configures a sequence initial state seed in one RIM-RS sending period
Figure BDA0001969819780000203
The initial state of (1), the initial state seed
Figure BDA0001969819780000204
And in a RIM-RS sending period, the single downlink and uplink pattern period P or the cascaded downlink and uplink pattern period P is changed according to OAM configuration. Specifically, a single downlink and uplink pattern period P or a cascade downlink and uplink pattern period P in the RIM-RS sending period is counted, and the P-th single downlink and uplink pattern period P or the cascade downlink and uplink pattern period P
Figure BDA0001969819780000205
Expressed as:
Figure BDA0001969819780000206
wherein, DeltacM is the maximum change length of the initial state of each sequence, which is configured for OAM or is a preset change step size, and can be determined by the interval between two adjacent initial states of the sequence.
Resetting sequence initial state to
Figure BDA0001969819780000207
And the counting of the single downlink and uplink pattern period P or the cascade downlink and uplink pattern period P is restarted.
For the case where the RIM-RS repetition times are configured, the sequence initial state seeds of different single downlink and uplink pattern periods P or the cascaded downlink and uplink pattern periods P may still be determined as above. In another embodiment, the following rule may be adopted for the counting of the downlink/uplink pattern periods: based on the repetition times of the remote interference management reference signal, if the remote interference management reference signal in the current downlink and uplink pattern period is still the remote interference management reference signal in the previous downlink and uplink pattern period, keeping the count of the downlink and uplink pattern period unchanged; otherwise, the count of the pattern periods of the downlink and uplink is incremented by one.
In short, if the RIM-RS in the current dl/ul pattern period is still repeating the RIM-RS in the previous dl/ul pattern period, the count p of the dl/ul pattern period remains unchanged, otherwise the count of the dl/ul pattern period p is incremented by one.
In the embodiment of the present application, the initial state seed is changed according to the sending opportunity based on the initial state, and possible changing manners are as follows:
counting the sending time of the remote interference management reference signal according to a preset change step length and the maximum change length of the initial state seed, wherein the initial state seed changes according to the counting result and the initial state.
Specifically, the OAM configures a sequence initial state seed in one RIM-RS sending period
Figure BDA0001969819780000211
The initial state of (1), the initial state seed
Figure BDA0001969819780000212
And the sending time is changed according to the RIM-RS sending time. Specifically, a first counter is defined to count RIM-RS transmission occasions in each RIM-RS transmission period, and the initial state seed of the nth RIM-RS transmission occasion
Figure BDA0001969819780000213
The calculation is as follows:
Figure BDA0001969819780000214
wherein, DeltacConfigured for OAM or preset change step length, M isThe maximum variation length of the initial state of each sequence can be determined by the interval between the initial states of two adjacent sequences.
Resetting sequence initial state to
Figure BDA0001969819780000215
And resumes counting RIM-RS transmission occasions.
For the case where duplicate RIM-RSs are configured, another initial state seed variation pattern is: defining a second counter, and counting the sending time of the remote interference management reference signal repeated by the remote interference management reference signal through a preset counter (namely the second counter) based on the repetition times of the remote interference management reference signal to obtain a second counting result; when the second counting result is zero, increasing one to the counting of the sending opportunity of the remote interference management reference signal; otherwise, the count of the remote interference management reference signal transmission occasions remains unchanged.
Briefly, the repetition of the RIM-RS transmission timing is counted in the range of 0 to RxX ∈ { a, b, c }, when the count is reset to 0, increment the first counter count by one, otherwise the first counter count is unchanged.
An embodiment of the present application further provides a base station, as shown in fig. 6, where the base station may include: a determination module 601, a sending module 602, and/or a detection module 603, wherein,
the determining module 601 is configured to determine a mapping relationship between a base station set identifier and a remote interference management reference signal according to the received configuration information;
the sending module 602 is configured to send a remote interference management reference signal according to the allocated base station set identifier and according to a mapping relationship;
the detection module 603 is configured to perform remote interference management reference signal detection, determine, according to the mapping relationship, base station set identification information according to the detected remote interference management reference signal, and report the determined base station set identification information.
In an alternative implementation, the configuration information includes at least one of:
a downlink and uplink pattern period;
a transmission period of a remote interference management reference signal;
time period allocation information of each type of remote interference management reference signal in a transmission cycle of the remote interference management reference signal;
the number of repetitions of each type of remote interference management reference signal;
managing the number of reference signal frequency domain resources by remote interference;
a set of available sequences on each remote interference management reference signal transmission opportunity.
In an alternative implementation, the type of the remote interference management reference signal includes at least one of:
a remote interference management reference signal for remote base station interference detection;
a remote interference management reference signal for near base station interference detection;
a remote interference management reference signal for indicating whether remote interference is still present.
In an alternative implementation, the number of repetitions of the remote interference management reference signal for far base station interference detection is the same as the number of repetitions of the remote interference management reference signal for near base station interference detection.
In an optional implementation manner, the time period allocation information of each type of remote interference management reference signal in the transmission cycle of the remote interference management reference signal is: the sending period T of the remote interference management reference signal comprises two time periods, wherein the former time period is the time period T of the remote interference management reference signal used for interference detection1The latter time period is a remote interference management reference signal time period T for indicating whether remote interference still exists2Wherein T ═ T1+T2。
In an optional implementation manner, the sending module 602 is specifically configured to obtain, according to the base station set identifier and according to a mapping relationship, remote interference management reference signal resource information in a sending period corresponding to the base station set identifier;
and the sending module 602 is specifically configured to send the remote interference management reference signal on a resource corresponding to the remote interference management reference signal resource information according to the sending period.
In an optional implementation manner, the sending module 602 is specifically configured to obtain, according to a mapping relationship and according to an indication of at least one of the following information fields included in the base station set identifier, remote interference management reference signal resource information in a sending period corresponding to the base station set identifier:
a sequence indication information field;
a time indication information field;
the frequency domain indicates an information domain.
In an alternative implementation, each information field corresponds to a position in a bit of the base station set identifier in any one of the following orders:
mapping a sequence indication information domain, a time indication information domain and a frequency domain indication information domain in sequence from the lowest bit of the base station set identifier;
and mapping a sequence indication information domain, a time indication information domain and a frequency domain indication information domain in sequence from the highest bit of the base station set identifier.
In an alternative implementation, the time indication information field corresponds to each remote interference management reference signal transmission opportunity within the transmission period for which the time domain position number is performed; or
The time indication information domain corresponds to each remote interference management reference signal sending opportunity in a sending period respectively carrying out time domain numbering according to the time segment distribution information; or
And the time indication information fields of the base station set identifications respectively corresponding to the remote interference management reference signals of the types correspond to the sending occasions of the remote interference management reference signals of the types in the sending period.
In an alternative implementation, a bit value corresponding to a bit of the sequence indication information field corresponds to an index of each available sequence in the available sequence set, and is used to indicate each available sequence of the base station corresponding to the base station set identifier on the corresponding remote interference management reference signal transmission opportunity.
In an alternative implementation, the type of the remote interference management reference signal further includes at least one of:
a remote interference management reference signal indicating insufficient interference reduction;
a remote interference management reference signal indicating that interference reduction is sufficient;
the bit value corresponding to the bit of the sequence indication information field corresponds to the sequence index of each available sequence in the available sequence set, wherein half of the sequence indexes corresponding to the available sequence set are used for indicating the remote interference management reference signals with insufficient interference reduction, and the other half of the sequence indexes are used for indicating the remote interference management reference signals with sufficient interference reduction;
or, a bit value corresponding to a bit of the sequence indication information field corresponds to an index of each pair of available sequences in the available sequence set, and is used for indicating each pair of available sequences, where a base station corresponding to the base station set identifier indicates "sufficient interference reduction" or "insufficient interference reduction" respectively, on a corresponding remote interference management reference signal transmission opportunity.
In an alternative implementation, the frequency domain indication information field corresponds to an index of a frequency domain position identified by the base station set.
In an alternative implementation, the initial state seed of the sequence in each transmission period is changed according to time or transmission timing based on the initial state of the initial state seed.
In an optional implementation manner, the initial state seed is changed according to time based on the initial state, and includes:
and counting the periods of the descending and ascending patterns according to a preset change step length and the maximum change length of the initial state seeds, wherein the initial state seeds change according to the counting result and the initial state.
In an optional implementation, counting the downlink and uplink pattern periods includes:
based on the repetition times of the remote interference management reference signal, if the remote interference management reference signal in the current downlink and uplink pattern period is still the remote interference management reference signal in the previous downlink and uplink pattern period, keeping the count of the downlink and uplink pattern period unchanged;
otherwise, the count of the pattern periods of the downlink and uplink is incremented by one.
In an optional implementation manner, the changing of the initial state seed according to the sending opportunity based on the initial state includes:
counting the sending time of the remote interference management reference signal according to a preset change step length and the maximum change length of the initial state seed, wherein the initial state seed changes according to the counting result and the initial state.
In an alternative implementation, counting remote interference management reference signal transmission occasions includes:
counting the sending time of the remote interference management reference signal repeated by the remote interference management reference signal through a preset counter based on the repetition times of the remote interference management reference signal to obtain a second counting result;
when the second counting result is zero, increasing one to the counting of the sending opportunity of the remote interference management reference signal;
otherwise, the count of the remote interference management reference signal transmission occasions remains unchanged.
It can be clearly understood by those skilled in the art that the base station provided in the embodiment of the present application has the same implementation principle and the same technical effect as those of the foregoing method embodiment, and for convenience and brevity of description, corresponding contents in the foregoing method embodiment may be referred to where this embodiment is not mentioned, and are not repeated herein.
An embodiment of the present application further provides an electronic device (for example, a terminal device), including: a processor and a memory, the memory storing at least one instruction, at least one program, set of codes or set of instructions, which is loaded and executed by the processor to implement the respective content of the aforementioned method embodiments.
Optionally, the electronic device may further comprise a transceiver. The processor is coupled to the transceiver, such as via a bus. It should be noted that the transceiver in practical application is not limited to one, and the structure of the electronic device does not constitute a limitation to the embodiments of the present application.
The processor may be a CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like.
A bus may include a path that transfers information between the above components. The bus may be a PCI bus or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory may be, but is not limited to, a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, an EEPROM, a CD-ROM or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, 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.
The embodiment of the present application also provides a computer-readable storage medium for storing computer instructions, which when run on a computer, enable the computer to execute the corresponding content in the foregoing method embodiments.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
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 (20)

1. A method for remote interference management, comprising:
the base station determines the mapping relation between the base station set identification and the remote interference management reference signal according to the received configuration information;
the base station sends a remote interference management reference signal according to the allocated base station set identifier and the mapping relation; and/or
And the base station detects the remote interference management reference signal, determines the identification information of the base station set according to the mapping relation and the detected remote interference management reference signal, and reports the determined identification information of the base station set.
2. The remote interference management method according to claim 1, wherein the configuration information comprises at least one of:
a downlink and uplink pattern period;
a transmission period of a remote interference management reference signal;
time period allocation information of each type of remote interference management reference signal in a transmission cycle of the remote interference management reference signal;
the number of repetitions of each type of remote interference management reference signal;
managing the number of reference signal frequency domain resources by remote interference;
a set of available sequences on each remote interference management reference signal transmission opportunity.
3. The remote interference management method according to claim 2, wherein the type of the remote interference management reference signal comprises at least one of:
a remote interference management reference signal for remote base station interference detection;
a remote interference management reference signal for near base station interference detection;
a remote interference management reference signal for indicating whether remote interference is still present.
4. The remote interference management method according to claim 3, wherein the number of repetitions of the remote interference management reference signal for far base station interference detection is the same as the number of repetitions of the remote interference management reference signal for near base station interference detection.
5. The method according to claim 3, wherein the time slot allocation information of each type of remote interference management reference signal in the transmission cycle of the remote interference management reference signal is:
the sending period T of the remote interference management reference signal comprises two time periods, wherein the former time period is the time period T of the remote interference management reference signal used for interference detection1The latter time period is a remote interference management reference signal time period T for indicating whether remote interference still exists2Wherein T ═ T1+T2。
6. The method according to any of claims 2-5, wherein the base station sends the remote interference management reference signal according to the mapping relationship according to the allocated base station set identifier, and comprising:
the base station acquires the remote interference management reference signal resource information in the sending period corresponding to the base station set identification according to the base station set identification and the mapping relation;
and the base station transmits the remote interference management reference signal on the resource corresponding to the remote interference management reference signal resource information according to the transmission period.
7. The remote interference management method according to claim 6, wherein the base station acquires, according to the mapping relationship and according to the base station set identifier, remote interference management reference signal resource information in the transmission period corresponding to the base station set identifier, and the method includes:
the base station acquires the remote interference management reference signal resource information in the sending period corresponding to the base station set identification according to the mapping relation and the indication of at least one of the following information domains contained in the base station set identification:
a sequence indication information field;
a time indication information field;
the frequency domain indicates an information domain.
8. The remote interference management method according to claim 7, wherein each information field corresponds to a position in the bits of the base station set identifier in any one of the following orders:
mapping a sequence indication information domain, a time indication information domain and a frequency domain indication information domain in sequence from the lowest bit of the base station set identifier;
and mapping a sequence indication information domain, a time indication information domain and a frequency domain indication information domain in sequence from the highest bit of the base station set identifier.
9. The remote interference management method according to claim 6 or 7,
the time indication information field corresponds to each remote interference management reference signal transmission opportunity in the transmission period for carrying out time domain position numbering; or
The time indication information domain corresponds to each remote interference management reference signal sending opportunity in the sending period which is respectively subjected to time domain numbering according to the time segment distribution information; or
And the time indication information fields of the base station set identifications respectively corresponding to the remote interference management reference signals of the types correspond to the sending occasions of the remote interference management reference signals of the types in the sending period.
10. The remote interference management method according to claim 6 or 7,
and the bit value corresponding to the bit of the sequence indication information field corresponds to the index of each available sequence in the available sequence set and is used for indicating each available sequence of the base station corresponding to the base station set identification on the corresponding remote interference management reference signal sending opportunity.
11. The remote interference management method according to claim 6 or 7, wherein the type of the remote interference management reference signal further comprises at least one of:
a remote interference management reference signal indicating insufficient interference reduction;
a remote interference management reference signal indicating that interference reduction is sufficient;
the bit value corresponding to the bit of the sequence indication information field corresponds to the sequence index of each available sequence in the available sequence set, wherein half of the sequence indexes corresponding to the available sequence set are used for indicating the remote interference management reference signals with insufficient interference reduction, and the other half of the sequence indexes are used for indicating the remote interference management reference signals with sufficient interference reduction;
or, a bit value corresponding to a bit of the sequence indication information field corresponds to an index of each pair of available sequences in the available sequence set, and is used for indicating each pair of available sequences, where a base station corresponding to the base station set identifier indicates "sufficient interference reduction" or "insufficient interference reduction" on a corresponding remote interference management reference signal transmission opportunity, respectively.
12. The remote interference management method according to claim 6 or 7, wherein the frequency domain indication information domain corresponds to an index of the frequency domain location identified by the base station set.
13. The method according to any of claims 2-12, wherein the initial state seed of the sequence in each of the transmission periods is changed according to time or transmission timing based on the initial state of the initial state seed.
14. The method of claim 13, wherein the initial state seed is changed over time based on the initial state, and wherein the method comprises:
and counting the periods of the downlink and uplink patterns according to a preset change step length and the maximum change length of the initial state seeds, wherein the initial state seeds change according to the counting result and the initial state.
15. The method of claim 14, wherein counting the dl/ul pattern periods comprises:
based on the repetition times of the remote interference management reference signal, if the remote interference management reference signal in the current downlink and uplink pattern period is still the remote interference management reference signal in the previous downlink and uplink pattern period, keeping the count of the downlink and uplink pattern period unchanged;
otherwise, the count of the descending and ascending pattern periods is increased by one.
16. The method of claim 13, wherein the initial state seed is changed according to a transmission timing based on the initial state, and the method comprises:
and counting the sending time of the remote interference management reference signal according to a preset change step length and the maximum change length of the initial state seed, wherein the initial state seed is changed according to the counting result and the initial state.
17. The method of claim 16, wherein counting the remote interference management reference signal transmission occasions comprises:
counting the sending time of the remote interference management reference signal repeated by the remote interference management reference signal through a preset counter based on the repetition times of the remote interference management reference signal to obtain a second counting result;
when the second counting result is zero, increasing one to the counting of the sending opportunity of the remote interference management reference signal;
otherwise, the counting of the remote interference management reference signal transmission occasions remains unchanged.
18. A base station, comprising: a determination module, a sending module and/or a detection module,
the determining module is used for determining the mapping relation between the base station set identification and the remote interference management reference signal according to the received configuration information;
the sending module is used for sending a remote interference management reference signal according to the allocated base station set identifier and the mapping relation;
the detection module is used for detecting the remote interference management reference signal, determining the identification information of the base station set according to the mapping relation and the detected remote interference management reference signal, and reporting the determined identification information of the base station set.
19. An electronic device, comprising: a processor and a memory, wherein the processor is capable of processing a plurality of data,
the memory stores at least one instruction, at least one program, set of codes, or set of instructions that is loaded and executed by the processor to implement the method of any of claims 1-17.
20. A computer-readable storage medium for storing a computer instruction, a program, a set of codes, or a set of instructions, which, when run on a computer, causes the computer to perform the method of any one of claims 1-17.
CN201910115007.0A 2019-02-11 2019-02-14 Remote interference management method, base station, electronic device and readable storage medium Pending CN111556578A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US17/430,154 US20220150012A1 (en) 2019-02-11 2020-02-11 Remote interference management method, gnb, electronic device, and readable storage medium
PCT/KR2020/001921 WO2020166946A1 (en) 2019-02-11 2020-02-11 Remote interference management method, gnb, electronic device, and readable storage medium
EP20755258.9A EP3921960A4 (en) 2019-02-11 2020-02-11 Remote interference management method, gnb, electronic device, and readable storage medium
KR1020217029322A KR20210116699A (en) 2019-02-11 2020-02-11 A method for remote interference management in a gNB, an electronic device and a readable storage medium.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910110433 2019-02-11
CN2019101104335 2019-02-11

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022052108A1 (en) * 2020-09-14 2022-03-17 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for remote interference detection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022052108A1 (en) * 2020-09-14 2022-03-17 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for remote interference detection

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