CN112534865A

CN112534865A - Method, apparatus and computer readable medium for detecting waveguide interference sources

Info

Publication number: CN112534865A
Application number: CN201880096240.2A
Authority: CN
Inventors: 姚春海; 张元涛
Original assignee: Nokia Shanghai Bell Co Ltd; Nokia Networks Oy
Current assignee: Nokia Shanghai Bell Co Ltd; Nokia Oyj; Nokia Solutions and Networks Oy
Priority date: 2018-08-03
Filing date: 2018-08-03
Publication date: 2021-03-19
Also published as: WO2020024286A1

Abstract

Embodiments of the present disclosure provide a method, apparatus, and computer-readable medium for detecting a waveguide interferer. According to embodiments of the present disclosure, devices in the same group of devices may transmit the same Remote Interference Management (RIM) identification. The device may also send a device specific RIM identification. In this way, resources for waveguide signal transmission can be more efficiently utilized.

Description

Method, apparatus and computer readable medium for detecting waveguide interference sources

Technical Field

Embodiments of the present disclosure relate generally to communication technology and, more particularly, relate to a method, apparatus, and computer-readable medium for detecting waveguide interferers.

Background

In a communication system, such as a Time Division Duplex (TDD) mobile system, there may be some type of interference. For example, in a time division synchronous code division multiple access (TD-SCDMA) communication system and/or in a Long Term Evolution (LTE) TDD system, there may be a type of remote interference known as "atmospheric waveguide interference". Atmospheric waveguide (duct) interference may interfere with equipment over distances of 100km to 300 km. Atmospheric waveguide interference may occur in rainy weather or in atmospheric humid coastal areas. Further research into certain types of interference is still needed.

Disclosure of Invention

In general, embodiments of the present disclosure relate to a method and corresponding apparatus for detecting waveguide interferers.

In a first aspect, embodiments of the present disclosure provide a method for communication. The method comprises the following steps: at a first device in a first set of devices, a plurality of signals from a second set of devices is received. The method also includes detecting remote interference caused by a second set of devices based on the plurality of signals. The method also includes transmitting a waveguide signal to a second set of devices in response to the remote interference being detected. The waveguide signal is associated with a first identification of the first set of devices.

In a second aspect, embodiments of the present disclosure provide a method for communication. The method includes receiving, at a management device, information from a first device in a first set of devices about remote interference caused by a second set of devices. Remote interference is detected by the first device based on a plurality of signals from the second set of devices. The method further comprises the following steps: in response to receiving the information, a trigger is sent to the first device to send a waveguide signal to the second set of devices, the waveguide signal associated with a first identification of the first set of devices.

In a third aspect, embodiments of the present disclosure provide a first device for communication. The first device includes: at least one processor; and a memory coupled to the at least one processor, the memory having instructions stored therein that, when executed by the at least one processor, cause the first device to perform acts comprising: at a first device in a first set of devices, a plurality of signals from a second set of devices is received. The actions also include detecting remote interference caused by a second set of devices based on the plurality of signals. The actions also include transmitting a waveguide signal to a second set of devices in response to the remote interference being detected. The waveguide signal is associated with a first identification of the first set of devices.

In a fourth aspect, embodiments of the present disclosure provide a management device. The management apparatus includes: at least one processor; and a memory coupled to the at least one processor, the memory having instructions stored therein that, when executed by the at least one processor, cause the management device to perform acts comprising: at a management device, information is received from a first device in a first set of devices about remote interference caused by a second set of devices. Remote interference is detected by the first device based on a plurality of signals from the second set of devices. The actions further include, in response to receiving the information, sending a trigger to the first device to send a waveguide signal to the second set of devices, the waveguide signal associated with a first identification of the first set of devices.

In a fifth aspect, embodiments of the present disclosure provide an apparatus for communication. The apparatus comprises means for performing the method according to the first aspect.

In a sixth aspect, embodiments of the present disclosure provide an apparatus for communication. The apparatus comprises means for performing the method according to the second aspect.

In a seventh aspect, embodiments of the present disclosure provide a computer-readable medium. The computer-readable medium has stored thereon instructions which, when executed by at least one processing unit of the machine, cause the machine to carry out the method according to the first aspect.

In an eighth aspect, embodiments of the present disclosure provide a computer-readable medium. The computer-readable medium has stored thereon instructions which, when executed by at least one processing unit of the machine, cause the machine to carry out the method according to the second aspect.

Other features and advantages of embodiments of the present disclosure will also be apparent from the following description of specific embodiments, when read in conjunction with the accompanying drawings which illustrate, by way of example, the principles of embodiments of the disclosure.

Drawings

Embodiments of the present disclosure are presented by way of example, and their advantages are explained in more detail below with reference to the accompanying drawings, in which

Figure 1 shows a schematic diagram of remote interference in a communication system;

fig. 2 shows a schematic diagram of a communication system according to an embodiment of the present disclosure;

FIG. 3 shows a schematic diagram of the interaction between devices according to an embodiment of the present disclosure;

FIG. 4A shows a schematic diagram of an identification according to an embodiment of the present disclosure;

fig. 4B shows a schematic diagram of determining waveguide signal transmission based on identification according to an embodiment of the present disclosure;

fig. 4C shows a schematic diagram of sub-band allocation according to an embodiment of the present disclosure;

fig. 5 shows a schematic diagram of a pattern of remote interference in the time domain according to an embodiment of the present disclosure;

fig. 6 shows a schematic diagram of a repetition of signal transmission according to an embodiment of the present disclosure;

fig. 7 shows a flow diagram of a method implemented at a device for communication in accordance with an embodiment of the present disclosure;

FIG. 8 illustrates a flow chart of a method implemented at a management device in accordance with an embodiment of the disclosure; and

fig. 9 shows a schematic diagram of an apparatus according to an embodiment of the present disclosure.

Throughout the drawings, the same or similar reference numbers refer to the same or similar elements.

Detailed Description

The subject matter described herein will now be discussed with reference to several exemplary embodiments. It should be understood that these examples are discussed only for the purpose of enabling those skilled in the art to better understand and thereby implement the subject matter described herein, and are not meant to imply any limitation as to the scope of the subject matter.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" 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," "comprising," "includes" and/or "including," when used herein, 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 should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two functions or acts shown in succession may, in fact, be executed substantially concurrently, or the functions/acts may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

As used herein, the term "communication network" refers to a network that conforms to any suitable communication standard, such as Long Term Evolution (LTE), LTE-advanced (LTE-a), Wideband Code Division Multiple Access (WCDMA), High Speed Packet Access (HSPA), wireless fidelity (Wi-Fi), and the like. Further, communication between the terminal device and the network devices in the communication network may be performed according to any suitable generation communication protocol, including, but not limited to, first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, future fifth generation (5G) communication protocols, IEEE 802.11 protocols, and/or any other protocol currently known or to be developed in the future.

Embodiments of the present disclosure may be applied to various communication systems. Given the rapid development of communications, there will, of course, also be future types of communication techniques and systems that may embody the present disclosure. The scope of the present disclosure should not be limited to only the above-described systems.

The term "device" as used herein refers to any suitable device capable of communicating. For example, the term "device" may refer to a network device or a terminal device. The term "network device" includes, but is not limited to, a Base Station (BS), a gateway, a management entity, and other suitable devices in a communication system. The term "base station" or "BS" denotes a node B (NodeB or NB), evolved NodeB (eNodeB or eNB), NR NodeB (gNB), Remote Radio Unit (RRU), Radio Header (RH), Remote Radio Head (RRH), relay, low power node (e.g., femto, pico, router, etc.).

The term "terminal device" includes, but is not limited to, "User Equipment (UE)" and other suitable terminal devices capable of communicating with the network device. For example, the "terminal device" may refer to a terminal, a Mobile Terminal (MT), a Subscriber Station (SS), a portable subscriber station, a Mobile Station (MS), or an Access Terminal (AT).

The term "management device" as used herein refers to any device that manages devices for communication. For example, the management device may include, but is not limited to, an operations and maintenance center. The term "remote interference" as used herein refers to interference between two devices that are remote from each other. Remote interference may include, but is not limited to, atmospheric waveguide interference. The term "waveguide signal" as used herein may refer to any kind of signal that may be associated with remote interference.

As described above, there may be long-range interference in some communication systems. Fig. 1 shows a schematic diagram of remote interference in a communication system. As shown in FIG. 1, an aggressive network device 110-1 and a victim network device 110-2 may be separated by 100 Km. The symbols in the downlink transmission in the aggressive network device 110-1 may fall into the uplink reception of the victim network device 110-2. Due to the atmospheric conduit, the interference strength may be 20dB higher than the receiver noise. Then, the Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH) of victim network device 110-2 may be interfered by remote interference.

It is envisioned that long range interference problems may also occur on New Radio (NR) communication systems deployed on unpaired spectrum. At the RAN #80 conference, remote interference management studies on NR were conducted by new SI proposals R1-181430. The objectives of this SI are as follows:

research mechanisms for reducing the impact of remote base station interference in unpaired spectrum are focused on synchronized macro cells with semi-static DL/UL configuration in co-channel, including:

research mechanisms to improve network robustness and resolve severe remote base station interference, including potential UE-side enhancements;

research mechanisms for identifying which gnbs produce severe remote interference include the following:

a) the potential reference signal for the gNB is designed to identify that it generates severe inter-gNB interference for certain victim gnbs. The existing reference signal is the starting point for discussion.

b) The mechanism by which the gNB initiates and terminates reference signal transmission/detection.

Potential additional coordination between the gnbs is investigated to mitigate remote interference.

In TD-LTE networks, there is a conventional solution to address long-range interference. The solution is that if the victim network device detects waveguide interference, a Remote Interference Management (RIM) specific signal will be transmitted to detect other network devices. All network devices in the network may transmit RIM-specific signals in sequence. Finally, the victim network device may identify the aggressive network device. The aggressive network device may fall back to a secure special subframe configuration to reduce interference.

However, there are a large number of network devices in a communication network. The network device will wait a long time to transmit the RIM reference signal, and detection of an aggressive network device may also take a long time. As a result, the victim network device may continuously suffer from waveguide interference. Therefore, the conventional solution is ineffective. The situation may be worse if the conventional solution is applied to NR systems. Generally, NR systems operate at higher frequency bands. To compensate for the coverage loss, the number of network devices in the NR system may be greater than the number of network devices in the LTE system. Thus, if remote interference occurs, it needs to detect an aggressive network device very quickly.

To address at least in part the above and other potential problems, embodiments of the present disclosure provide a solution for detecting remote interferers. Some example embodiments of the present disclosure are now described below with reference to the accompanying drawings. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the disclosure extends beyond these limited embodiments.

Fig. 2 shows a schematic diagram of a communication system 200 in which embodiments of the present disclosure may be implemented. Communication system 200, which is part of a communication network, includes device 210-1, device 210-2, device 210-N (collectively referred to as a "first set of devices", where N is an integer), management device 230, devices 220-1, 220-2, device 220-M (collectively referred to as a "second set of devices", where M is an integer), and another management device 240. The managing device 230 manages the first group of devices 210 and the further managing device 240 manages the second group of devices 220. It should be noted that communication system 200 may also include other elements that are omitted for clarity. It is to be understood that the number of devices and management devices shown in fig. 2 is for descriptive purposes only and not for limiting purposes.

Communication system 200 may include any suitable number of devices and management devices. Remote interference may exist between the first set of devices 210 and the second set of devices 220. The first group of devices 210 may communicate with the managing device 230 and the second group of devices 220 may communicate with the managing device 240. The device 230 and the further managing device 240 may communicate with each other. As shown in fig. 2, the devices in the first group of devices 210 are managed by the same management device, i.e., management device 230. In other embodiments, the devices in the first set of devices 210 may be in the same centralized unit/distributed unit (CU/GU) architecture of the 5G system. In another embodiment, the devices in the first set of devices may be located in the same geographic area.

It should be noted that the first set of devices 210 and the second set of devices 220 may be interchanged. That is, if there is remote interference between the first set of devices 210 and the second set of devices 220, the first set of devices 210 may be "aggressive devices" to the second set of devices 220, and the second set of devices 220 may be "aggressive devices" to the first set of devices 210. For purposes of illustration only, embodiments of the present disclosure are described with reference to the first set of devices 210 being "victim devices" and the second set of devices being "aggressor devices".

Communications in communication system 200 may be implemented in accordance with any suitable communication protocol, including, but not limited to, first-generation (1G), second-generation (2G), third-generation (3G), fourth-generation (4G), and fifth-generation (5G), etc. cellular communication protocols, wireless local area network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE)802.11, and/or any other protocol currently known or developed in the future. Moreover, the communication may utilize any suitable wireless communication technology, including but not limited to: code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Frequency Division Duplex (FDD), Time Division Duplex (TDD), Multiple Input Multiple Output (MIMO), Orthogonal Frequency Division Multiple Access (OFDMA), and/or any other technique now known or later developed.

According to the embodiments of the present disclosure, the time for detecting a remote interference source can be reduced. The likelihood of detecting a remote interferer may also be increased. Resources for waveguide signal transmission can be more efficiently utilized.

Fig. 3 shows a schematic diagram of an interaction 300 between devices according to an embodiment of the present disclosure. For purposes of illustration only, the interaction 300 is described as being implemented between the device 210-1 in the first set of devices 210 (also referred to as a "first device"), the device 220-1 in the second set of devices 220 (also referred to as a "second device"), and the management device 230. It should be noted that the interaction 300 may be implemented between any other suitable devices. Embodiments of the present disclosure are not limited in this respect.

The devices in the first group of devices 210 have the same RIM identity (also referred to as a first identity). That is, device 210-1, device 210-2, and device 210-N have the same RIM identification. The management device 230 may assign 3010 a RIM identification to each device in the first device group 210. Fig. 4A is a schematic diagram of a RIM identification 400 according to an embodiment of the disclosure.

As shown in fig. 4A, the RIM identity 400 may comprise 20 bits. It should be noted that RIM identification 400 may include any suitable number of bits. The RIM identification 400 may determine information about the time, frequency, and code domains related to waveguide signal transmission, e.g., RIM sequence pattern information, resource identification, RIM signal transmission timing information, and the like.

The RIM sequence pattern information may include a sequence ID and a sequence pattern in a Physical Resource Block (PRB). The resource identification may include subband information and slot information. The overall system bandwidth is divided into several sub-bands, some of which are used for RIM signaling. The RIM signal transmission timing information may include a RIM signal repetition period and a RIM signal transmission periodicity, a slot index in a radio frame. For example, the RIM identifier 400 may include a sequence index 4010, a sequence pattern 4020, a resource identifier 4030, and a transmission timing indication 4040.

In some embodiments, the management device 230 may also assign a device-specific RIM identification to the first device 210-1. The device-specific RIM identification may have a similar structure to RIM identification 400 and may be longer or shorter than RIM identification 400. In some embodiments, there may be only one device in a group of devices. For example, the first set of devices 210 may include only the first device 210-1. The management device 230 may only assign the RIM identification 400 to the first device 210-1, and the RIM identification 400 may also be a device-specific RIM identification. In other embodiments, the management device 230 may only assign device-specific RIM identifications to the first device 210-1.

In some embodiments, the management device 230 may configure some parameters to the first set of devices 210. For example, management device 230 may configure RIM identification 400. The RIM identity 400 may be assigned per device or per cell or per group, and the number of bits in the RIM ID 400 may be configured according to the number of devices or cells in the network.

In an example embodiment, management device 230 may configure the RIM sequence index. The sequences in the candidate sequence set are configurable, the selected sequences having good auto-and cross-correlation properties.

In another embodiment, management device 230 may configure the RIM sequence mode. The pattern defines Resource Element (RE) positions occupied by RIM signals in a PRB.

Alternatively or additionally, the management device 230 may configure the RIM signal time domain location comprising the slot index/indices in the radio frame and the symbol index/indices used for RIM signal transmission before the guard period.

In an example embodiment, management device 230 may configure subcarrier spacing for RIM signaling

In an example embodiment, management device 230 may configure the RIM subband ID. The bandwidth of the sub-bands may be configurable or predefined in a standard. The number of sub-bands and associated band IDs that the RIM signals are transmitted on are configurable.

In an example embodiment, management device 230 may configure RIM transmission timing indications. The number of bits is configurable and is used to indicate the radio frame number of the RIM sequence transmission.

The RIM transmission timing indication may include the following parameters: (1) RIM signal transmission period: time when RIM signal is transmitted once in all devices/cells; (2) RIM signal repetition period: 10ms or 20 ms; (3) RIM signal repetition number: the number of repetitions in a repetition period; determined by the SCS and UL-DL transmission period. For example: not repeating within a repetition period means that the RIM signal can be transmitted in different beams within the repetition period or different eNB RIM signals can be multiplexed in the time domain. Two repetitions in the repetition period means less beam information, multiplexing more device transmissions in the time domain, which can improve the reliability of RIM sequence detection.

Referring back to fig. 3, the second device 220-1 transmits 3020 a plurality of signals to the first device 210-1. It should be noted that multiple signals may be transmitted from any of the devices in the second set of devices 220. The first device 210-1 detects 3030 remote interference based on the plurality of signals. The remote interference is caused by the second set of devices 220. Fig. 5 shows an example pattern in the time domain of remote interference. Specifically, after a guard period in the time domain, there is a regular "down" remote interference pattern in the OFDM symbol. More network devices may generate interference if the uplink symbols are closer to the guard period. For example, if the first device 210-1 detects a pattern in the plurality of signals as shown in fig. 5, the first device 210-1 may detect remote interference caused by the second set of devices. It should be noted that the schema shown in FIG. 5 is for illustration only and not for limitation.

In an example embodiment, the first device 210-1 may determine 3040 information about remote interference. For example, the first device 210-1 may determine a signal sequence of the remote interference. The first device 210-1 may also determine the sub-band in which the remote interference is transmitted. Alternatively or additionally, the first device 210-1 may determine a timing indication of the remote interference. If the plurality of signals are waveguide signals of the second set of devices 220, the first device 210-1 may determine a RIM identification (also referred to as a second identification) of the second set of devices 220.

In some embodiments, the first device 210-1 may send 3050 information about the remote interference to the managing device 230. In some embodiments, the first device 210-1 may send the RIM identification of the second set of devices 220 to the managing device 230. In other embodiments, first device 210-1 may also send the device-specific RIM identification of second device 220-1 to management device 230. In some embodiments, management device 230 may determine the RIM identification of the second set of devices 220 and/or the device-specific RIM identification based on information sent from the first device 210-1 regarding remote interference.

In some embodiments, if the managing device 230 receives information about remote interference, the managing device 230 may send 3060 a trigger to the first device. The first device 210-1 may determine 3070 resources for transmitting the waveguide signal based on the RIM identification 400. For example, the resource identification 4030 may specify a sub-band for transmitting waveguide signals.

As described above, the RIM identification 400 may determine time, frequency, and code domain information related to waveguide signal transmission. Fig. 4B is a schematic diagram of determining waveguide signal transmission based on RIM identification 400 according to an embodiment of the disclosure. The first device 210-1 may determine RIM signal transmission timing, subbands (in the field of resource ID, slot information is not considered here for simplicity), RIM sequence pattern, and sequence index.

The RIM sequence transmission timing can be determined based on formula (1).

RIM ID mod (2^14) ═ GPS ^ 100/2^14, where GPS is single (1)

Bit is second

The RIM subband may be determined based on equation (2).

X mod(2^2) (2)

The RIM sequence pattern may be determined based on equation (3).

Y mod(2^2) (3)

The RIM sequence index may be determined based on equation (4).

Floor(Y/2^2) (4)

Wherein X ═ Floor (gNB RIM ID/2^ 14); y ═ Floor (X/2^ 2).

Fig. 4C shows an example of determining the transmission of a waveguide signal based on the RIM identification 400. Fig. 4C shows subband assignment. Cell 1 (i.e., one device in a group of devices) supports a channel bandwidth of 100MHz, and cell 2 (i.e., another device in another group of devices) supports a channel bandwidth of 60 MHz; the two cells are from different regions and the allocated channel bandwidths are different. Each subband is 10MHz, subband 2, subband 3, subband 4, subband 5 are assigned for RIM signal transmission, and the index is relabeled as RIM subband index 0, RIM subband index 1, RIM subband index 2, RIM subband index 3.

The RIM ID may comprise 20 bits, which means that it can support more than one million devices (2^20 ^ 1048576). The RIM signal transmission timing indication includes 14 bits. The RIM signal repetition period is 10 ms. According to some UL-DL configurations, there may be 8 repetitions within 10 milliseconds, which increases the probability of RIM signal detection. There may also be no repetition, which supports 8 beams.

The RIM signaling periodicity is 2.73 seconds, which is derived from 2^ 14/100/60. The subband indication may comprise 2 bits, which means that a total of 4 subbands are allocated for RIM signaling, while the other subbands are muted.

The sequence mode indication may comprise 2 bits, which means four available modes. The sequence index may contain 2 bits, which means that 4 candidate sequences will be multiplexed together.

In some embodiments, to support more beams, e.g., 16 beams, the configuration may be as follows.

The RIM ID may comprise 20 bits, which means that it can support more than one million devices (2^20 ^ 1048576). The RIM signal transmission timing indication includes 14 bits. The RIM signal repetition period is 20 ms. There may be 2 repetitions providing additional 3 bits of information and 8 devices that can be multiplexed within 20 ms. There may also be no repetition, which supports 16 beams.

The RIM signaling periodicity was 5.46 seconds, which was derived from 2^ 15/100/60. The subband indication may comprise 2 bits, which means that a total of 4 subbands are allocated for RIM signaling, while the other subbands are muted.

The sequence mode indication may comprise 2 bits, which means four available modes. The sequence index may contain 2 bits, which means that 4 candidate sequences will be multiplexed together

The first device 210-1 may transmit RIM signals when the device-specific RIM ID mod (2^14) × 2 ═ GPS ^ 100/2^15, and may transmit RIM signals within 16 beams within 20 ms.

The first device 210-1 transmits 3080 the waveguide signal to the second set of devices 220. The first device 210-1 may send the waveguide signal directly to the second set of devices 220 without notifying the managing device 230 of information about the remote interference. In some embodiments, the first device 210-1 may transmit information about the remote interference after detecting the waveguide signal.

In some embodiments, the first device 210-1 may receive a trigger from the management device, as described above. If a trigger is received, the first device 210-1 may transmit a waveguide signal.

The waveguide signal may carry information of RIM identification 400. For example, as described above, the transmission resources may be determined based on the RIM identification 400. The first device may transmit 3090 another waveguide signal associated with the device-specific RIM identity (also referred to as the third identity) of the first device 210-1. The other waveguide signal may carry information of the device-specific RIM identification of the first device 210-1. The transmission resources for the other waveguide signal may be determined based on the device-specific RIM identification of the first device 210-1. The first device may also broadcast the waveguide signal.

In this way, remote interferers can be quickly detected. The efficiency of detecting an aggressive device is greatly improved. The number of devices in a device group is flexible. If the group of devices is identified as an interference source, the waveguide signal is transmitted by each device in the group of devices, and the other groups of devices cease waveguide signal transmission.

In some embodiments, the management device 230 may receive the third identification from other management devices, which means that the first device 210-1 may be a source of remote interference. The management device 230 may send 3100 a command to the first device 210-1 to reduce remote interference. The first device 210-1 may command a decrease 3110 in the signal strength of the downlink transmission to avoid remote interference to the second set of devices. Alternatively or additionally, the first device 210-1 may stop downlink transmissions on a particular resource. The resources may include time domain resources and/or frequency domain resources. For example, the first device 210-1 may mute some resources on the downlink.

Fig. 6 shows a schematic diagram of a repetition of signal transmission according to an embodiment of the present disclosure. The RIM repetition period is 10ms and the RIM signal is transmitted periodically.

Fig. 7 shows a flow diagram of a method implemented at a device for communication in accordance with an embodiment of the present disclosure. The method 700 may be implemented at the first device 210-1.

At block 710, the first device 210-1 receives a plurality of signals from the second set of devices 220.

At block 720, the first device 210-1 detects remote interference caused by the second set of devices 220 based on the plurality of signals.

At block 730, in response to the remote interference being detected, the first device 210-1 transmits a waveguide signal to the second set of devices, the waveguide signal being associated with the first identification 400 of the first set of devices 210. The first identification 400 of the first group of devices may be assigned by the managing device 230.

In some embodiments, the first device 210-1 may determine the resource based on the first identification. In some embodiments, the first device 210-1 may transmit the waveguide signal on the determined resource.

In an example embodiment, the first device 210-1 may determine information about remote interference and send the information to the management device 230.

In some embodiments, at least one of the following based on the plurality of signals may be considered as information about remote interference: a signal sequence of the remote interference, a sub-band of the remote interference, and a timing indication of the remote interference.

In some embodiments, the first device 210-1 may determine the second identification of the second set of devices 220 based on information about remote interference. In an example embodiment, the first device 210-1 may send the second identification to the managing device.

In some embodiments, the first device 210-1 may receive a trigger from the management device and transmit a waveguide signal to the second set of devices 220.

In another embodiment, the first device 210-1 may transmit another waveguide signal associated with the third identification of the first device to the second set of devices.

In other embodiments, the first device 210-1 may receive a command from the management device 230 to reduce remote interference.

In another embodiment, the first device 210-1 may reduce the signal strength of the downlink transmission on command to avoid remote interference to the second set of devices 220. Alternatively or additionally, the first device 210-1 may stop downlink transmission of a particular resource. The resources may include time domain resources and/or frequency domain resources.

In some embodiments, an apparatus (e.g., the first device 210-1) for performing the method 700 may include respective means for performing respective steps in the method 700. These components may be implemented in any suitable manner. For example, it may be implemented by a circuit or a software module.

In some embodiments, the apparatus comprises: means for receiving, at a first device in a first set of devices, a plurality of signals from a second set of devices; means for detecting remote interference caused by a second set of devices based on the plurality of signals; and means for transmitting a waveguide signal to the second set of devices in response to the remote disturbance being detected, the waveguide signal being associated with the first identification of the first set of devices.

In some embodiments, the means for transmitting the waveguide signal comprises: means for transmitting information about remote interference to a management device; and means for transmitting the waveguide signal in response to receiving a trigger from the management device.

In some embodiments, the apparatus further comprises: based on the plurality of signals, at least one of the following is taken as information on remote interference: a signal sequence of the remote interference, a sub-band of the remote interference, and a timing indication of the remote interference.

In some embodiments, the apparatus further comprises: means for determining a second identification of a second set of devices based on information about remote interference; and means for sending the second identification to the management device. .

In some embodiments, the means for transmitting the waveguide signal comprises: means for determining a resource based on the first identity; and means for transmitting the waveguide signal on the determined resource.

In some embodiments, the apparatus further comprises: means for transmitting, to the second set of devices, another waveguide signal associated with a third identification of the first device, the third identification being assigned by the management device.

In some embodiments, the apparatus further comprises: means for receiving a command from a management device to reduce remote interference, and the command comprises at least one of: reducing the signal strength of the downlink transmission to avoid remote interference to the second set of devices; and stopping downlink transmission on at least one of the time domain resources and the frequency domain resources.

Fig. 8 shows a flow diagram of a method 800 for communication, in accordance with an embodiment of the present disclosure. Method 800 may be implemented at management device 230.

At block 810, the management device 230 receives information from a first device 210-1 in the first set of devices 210 regarding remote interference caused by the second set of devices 220. The first device 210-1 detects remote interference based on the plurality of signals from the second set of devices 220.

At block 820, the management device 230 sends a trigger signal to the first device 210-1 to send the waveguide signal to the second set of devices in response to receiving the information. The waveguide signal is associated with a first identification 400 of the first set of devices 210.

In some embodiments, based on the plurality of signals, at least one of the following may be taken as the information on the remote interference: a signal sequence of the remote interference, a sub-band of the remote interference, and a timing indication of the remote interference.

In another embodiment, the managing device 230 receives the second identification of the second set of devices 220 from the first device 210-1. The second identification is determined based on information about remote interference.

In some embodiments, management device 230 may assign first identification 400 to first group device 210-1.

In other embodiments, the management device 230 may assign the third identification to the first device 210.

In some embodiments, the managing device 230 may receive the third identification of the first device 210 from another managing device 240. Another managing device 240 is associated with the second set of devices 220.

In another embodiment, the management device 230 may send a command to the first device 210-1 to reduce the signal strength of the downlink transmission.

In some embodiments, an apparatus (e.g., management device 230) for performing method 800 may include various means for performing the respective steps in method 800. These components may be implemented in any suitable manner. For example, it may be implemented by a circuit or a software module.

In some embodiments, the apparatus comprises: means for receiving, at a management device, information from a first device in a first set of devices about remote interference caused by a second set of devices, the remote interference detected by the first device based on a plurality of signals from the second set of devices; and means for sending, in response to receiving the information, a trigger to the first device to send a waveguide signal to the second set of devices, the waveguide signal associated with a first identification of the first set of devices.

In some embodiments, the apparatus further comprises: means for receiving, from the first device, a second identification of the second set of devices, the second identification determined based on the information about the remote interference.

In some embodiments, the apparatus further comprises: means for assigning a first identification to a first group of devices.

In some embodiments, the apparatus further comprises: means for assigning a third identification to the first device; means for receiving a third identification of the first device from another management device, the other management device associated with a second set of devices; and means for sending a command to the first device to reduce the signal strength of the downstream transmission.

Fig. 9 is a simplified block diagram of a device 900 suitable for implementing embodiments of the present disclosure. Device 900 may be implemented at device 210-1. Device 900 pages may be implemented at management device 230. As shown, device 900 includes one or more processors 910, one or more memories 920 coupled to processor(s) 910, one or more transmitters and/or receivers (TX/RX)740 coupled to processor 710.

The processor 910 may be of any type suitable to the local technology network, and may include one or more of general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs) and processors based on a multi-core processor architecture, as non-limiting examples. Device 900 may have multiple processors, such as application specific integrated circuit chips, that are time dependent from a clock synchronized with the main processor.

The memory 920 may be of any type suitable to the local technology network, and may be implemented using any suitable data storage technology, such as non-transitory computer-readable storage media, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples.

Memory 920 stores at least a portion of program 930. TX/RX 940 is used for bi-directional communication. TX/RX 940 has at least one antenna to facilitate communication, although in practice the access nodes referred to in this application may have multiple antennas. A communication interface may represent any interface necessary to communicate with other network elements.

The programs 930 are assumed to include program instructions that, when executed by the associated processor 910, enable the device 900 to operate in accordance with embodiments of the present disclosure, as discussed herein with reference to fig. 3-8. That is, embodiments of the present disclosure may be implemented by computer software executable by the processor 910 of the device 900, or by hardware, or by a combination of software and hardware.

While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any disclosure or of what may be claimed, but rather as descriptions of features specific to particular disclosures of particular implementations. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Furthermore, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.

Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. And (6) obtaining the result. In some cases, multitasking and parallel processing may be advantageous. Moreover, the separation of various system components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

Various modifications, adaptations, and other embodiments of the present disclosure may become apparent to those skilled in the relevant arts in view of the foregoing description, when read in conjunction with the accompanying drawings. Any and all modifications will still fall within the scope of the non-limiting and exemplary embodiments of this disclosure. Moreover, other embodiments of the present disclosure set forth herein will occur to those skilled in the art to which these embodiments of the present disclosure pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings.

Therefore, it is to be understood that the embodiments of the disclosure are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A method of communication, comprising:

receiving, at a first device in a first set of devices, a plurality of signals from a second set of devices;

detecting remote interference caused by the second set of devices based on the plurality of signals; and

in response to the remote interference being detected, transmitting a waveguide signal to the second set of devices, the waveguide signal associated with a first identification of the first set of devices.

2. The method of claim 1, wherein transmitting the waveguide signal comprises:

transmitting information about the remote interference to a management device; and

transmitting the waveguide signal in response to receiving a trigger from the management device.

3. The method of claim 2, further comprising: based on the plurality of signals, at least one of the following is taken as the information on the remote interference:

the signal sequence of the remote interferer is,

a sub-band of the remote interference, an

A timing indication of the remote interference.

4. The method of claim 3, further comprising:

determining a second identification of the second set of devices based on the information about the remote interference; and

and sending the second identifier to the management device.

5. The method of claim 1, wherein transmitting the waveguide signal comprises:

determining a resource based on the first identity; and

transmitting the waveguide signal on the determined resource.

6. The method of claim 1, further comprising:

transmitting another waveguide signal associated with a third identification of the first device to the second set of devices, the third identification assigned by the management device.

7. The method of claim 1, wherein the first identification is assigned by the management device.

8. The method of claim 1, further comprising:

receiving a command from the management device to reduce the remote interference, and the command includes at least one of:

reducing signal strength of downlink transmissions to avoid remote interference to the second set of devices; and

stopping the downlink transmission on at least one of a time domain resource and a frequency domain resource.

9. A method of communication, comprising:

receiving, at a management device, information from a first device in a first set of devices about remote interference caused by a second set of devices, the remote interference detected by the first device based on a plurality of signals from the second set of devices; and

in response to receiving the information, sending a trigger to the first device to send a waveguide signal to the second set of devices, the waveguide signal associated with a first identification of the first set of devices.

10. The method of claim 9, further comprising: based on the plurality of signals, at least one of the following is taken as the information on the remote interference:

the signal sequence of the remote interferer is,

a sub-band of the remote interference, an

A timing indication of the remote interference.

11. The method of claim 10, further comprising:

receiving, from the first device, a second identification of the second set of devices, the second identification determined based on the information about the remote interference.

12. The method of claim 9, further comprising:

assigning the first identification to the first group of devices.

13. The method of claim 9, further comprising:

assigning a third identification to the first device;

receiving the third identification of the first device from another management device, the other management device associated with the second set of devices; and

sending a command to the first device to reduce a signal strength of a downlink transmission.

14. A first device, comprising:

at least one processor; and

a memory coupled to the at least one processor having instructions stored therein that, when executed by the at least one processor, cause the first device to:

receiving, at the first device in a first set of devices, a plurality of signals from a second set of devices;

15. The first device of claim 14, wherein transmitting the waveguide signal comprises:

16. The first device of claim 15, further comprising: based on the plurality of signals, at least one of the following is taken as the information on the remote interference:

the signal sequence of the remote interferer is,

a sub-band of the remote interference, an

A timing indication of the remote interference.

17. The first device of claim 16, the instructions further causing the first device to:

and sending the second identifier to the management device.

18. The first device of claim 14, wherein transmitting the waveguide signal comprises:

determining a resource based on the first identity; and

transmitting the waveguide signal on the determined resource.

19. The first device of claim 14, the instructions further causing the first device to:

20. The first device of claim 14, wherein the first identification of the first set of devices is assigned by the managing device.

21. The first device of claim 14, the instructions further causing the first device to:

22. A management device, comprising:

at least one processor; and

a memory coupled to the at least one processor having instructions stored therein that, when executed by the at least one processor, cause the management device to:

receiving, at the management device, information from a first device in a first set of devices about remote interference caused by a second set of devices, the remote interference detected by the first device based on a plurality of signals from the second set of devices; and

23. The management device of claim 22, further comprising: based on the plurality of signals, at least one of the following is taken as the information on the remote interference:

the signal sequence of the remote interferer is,

a sub-band of the remote interference, an

A timing indication of the remote interference.

24. The management device of claim 22, the instructions further causing the management device to:

receiving, from the first device, a second identification of the second set of devices, the second identification determined based on the information regarding the remote interference.

25. The management device of claim 22, the instructions further causing the management device to:

assigning the first identification to the first group of devices.

26. The management device of claim 22, the instructions further causing the management device to:

assigning a third identification to the first device;

27. A computer-readable medium having instructions stored thereon, which, when executed by at least one processing unit of a machine, cause the machine to perform the method of any one of claims 1 to 8.

28. A computer-readable medium having instructions stored thereon, which, when executed by at least one processing unit of a machine, cause the machine to perform the method of any one of claims 9 to 13.

29. An apparatus for communication, comprising:

means for receiving, at a first device in a first set of devices, a plurality of signals from a second set of devices;

means for detecting remote interference caused by the second set of devices based on the plurality of signals; and

means for transmitting a waveguide signal to the second set of devices in response to the remote interference being detected, the waveguide signal being associated with a first identification of the first set of devices.

30. The apparatus of claim 29, wherein the means for transmitting the waveguide signal comprises:

means for transmitting information about the remote interference to a management device; and

means for transmitting the waveguide signal in response to receiving a trigger from the management device.

31. The apparatus of claim 30, further comprising: based on the plurality of signals, at least one of the following is taken as the information on the remote interference:

the signal sequence of the remote interferer is,

a sub-band of the remote interference, an

A timing indication of the remote interference.

32. The apparatus of claim 31, further comprising:

means for determining a second identification of the second set of devices based on the information about the remote interference; and

means for sending the second identification to the management device.

33. The apparatus of claim 29, wherein the means for transmitting the waveguide signal comprises:

means for determining a resource based on the first identification; and

means for transmitting the waveguide signal on the determined resource.

34. The apparatus of claim 29, further comprising:

means for transmitting, to the second set of devices, another waveguide signal associated with a third identification of the first device, the third identification assigned by the management device.

35. The apparatus of claim 29, wherein the first identification of the first set of devices is assigned by the managing device.

36. The apparatus of claim 29, further comprising:

means for receiving a command from the management device to reduce the remote interference, and the command comprises at least one of:

37. An apparatus for communication, comprising:

means for receiving, at a management device, information from a first device of a first set of devices about remote interference caused by a second set of devices, the remote interference detected by the first device based on a plurality of signals from the second set of devices; and

means for transmitting, in response to receiving the information, a trigger to the first device to transmit a waveguide signal to the second set of devices, the waveguide signal associated with a first identification of the first set of devices.

38. The apparatus of claim 37, further comprising: based on the plurality of signals, at least one of the following is taken as the information on the remote interference:

the signal sequence of the remote interferer is,

a sub-band of the remote interference, an

A timing indication of the remote interference.

39. The apparatus of claim 37, further comprising:

means for receiving, from the first device, a second identification of the second set of devices, the second identification determined based on the information regarding the remote interference.

40. The apparatus of claim 37, further comprising:

means for assigning the first identification to the first set of devices.

41. The apparatus of claim 37, further comprising:

means for assigning a third identification to the first device;

means for receiving the third identification of the first device from another management device associated with the second set of devices; and

means for sending a command to the first device to reduce a signal strength of a downlink transmission.