CN113395778A - Electronic device, wireless communication method, and computer-readable storage medium - Google Patents

Electronic device, wireless communication method, and computer-readable storage medium Download PDF

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Publication number
CN113395778A
CN113395778A CN202010165599.XA CN202010165599A CN113395778A CN 113395778 A CN113395778 A CN 113395778A CN 202010165599 A CN202010165599 A CN 202010165599A CN 113395778 A CN113395778 A CN 113395778A
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China
Prior art keywords
interfered
user equipment
interference
network side
area
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CN202010165599.XA
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Chinese (zh)
Inventor
周明拓
刘敏
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Sony Corp
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Sony Corp
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Priority to CN202010165599.XA priority Critical patent/CN113395778A/en
Priority to CN202180010056.3A priority patent/CN114982353A/en
Priority to PCT/CN2021/078972 priority patent/WO2021179976A1/en
Publication of CN113395778A publication Critical patent/CN113395778A/en
Pending legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present disclosure relates to an electronic device, a wireless communication method, and a computer-readable storage medium. An electronic device according to the present disclosure includes processing circuitry configured to: determining an interfered area of user equipment, wherein the interfered area comprises an area interfered by uplink information sent by the user equipment; determining interfered network side equipment according to the interfered area of the user equipment; generating an interference impact information table, wherein the interference impact information table includes interference levels caused to the interfered network side device under the condition that the user equipment uses each resource; and sending the interference influence information table to the interfered network side equipment. Using an electronic device, a wireless communication method, and a computer-readable storage medium according to the present disclosure, interference coordination may be performed to reduce or avoid uplink interference in a wireless communication system including an NTN.

Description

Electronic device, wireless communication method, and computer-readable storage medium
Technical Field
Embodiments of the present disclosure relate generally to the field of wireless communications, and in particular, to electronic devices, wireless communication methods, and computer-readable storage media. More particularly, the present disclosure relates to an electronic device as a network side device in a wireless communication system, a wireless communication method performed by a network side device in a wireless communication system, and a computer-readable storage medium.
Background
Due to the wide service coverage capability, an NTN (Non-Terrestrial network) may provide a 5G service in an area that a 5G network of a TN (Terrestrial network) cannot cover. Therefore, an Integrated Satellite Terrestrial Network (ISTN) has been proposed, the basic feature of which is that the NTN shares the same frequency band with the TN. The ISTN can improve spectrum utilization and optimize scarce low-frequency spectrum resources. Since the NTN and TN use the same frequency band, interference between the two networks is inevitably caused.
For example, in uplink communication of the NTN, an NTN-UE (a user equipment in the NTN) sends information to an NTN-gNB (a network side equipment in the NTN), and a TN-gNB (a network side equipment in the TN) in the TN may receive uplink information from the TN-UE (a user equipment in the TN) at the same frequency, or other NTN-gnbs in the NTN may receive uplink information from other NTN-UEs at the same frequency, so the TN-gNB or other NTN-gnbs may receive information from the NTN-UE, which belongs to interference information for the TN-gNB or other NTN-gnbs.
Therefore, it is necessary to provide a technical solution to perform interference coordination to reduce or avoid uplink interference in a wireless communication system including an NTN.
Disclosure of Invention
This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
An object of the present disclosure is to provide an electronic device, a wireless communication method, and a computer-readable storage medium to perform interference coordination to reduce or avoid uplink interference in a wireless communication system including an NTN.
According to an aspect of the disclosure, there is provided an electronic device comprising processing circuitry configured to: determining an interfered area of user equipment, wherein the interfered area comprises an area interfered by uplink information sent by the user equipment; determining interfered network side equipment according to the interfered area of the user equipment; generating an interference impact information table, wherein the interference impact information table includes interference levels caused to the interfered network side device under the condition that the user equipment uses each resource; and sending the interference influence information table to the interfered network side equipment.
According to another aspect of the present disclosure, there is provided a wireless communication method including: determining an interfered area of user equipment, wherein the interfered area comprises an area interfered by uplink information sent by the user equipment; determining interfered network side equipment according to the interfered area of the user equipment; generating an interference impact information table, wherein the interference impact information table includes interference levels caused to the interfered network side device under the condition that the user equipment uses each resource; and sending the interference influence information table to the interfered network side equipment.
According to another aspect of the present disclosure, there is provided a computer-readable storage medium comprising executable computer instructions that, when executed by a computer, cause the computer to perform a wireless communication method according to the present disclosure.
With the electronic device, the wireless communication method, and the computer-readable storage medium according to the present disclosure, the electronic device may determine an interfered area of the user equipment and determine an interfered network-side device, thereby generating an interference impact information table including a level of interference caused to the interfered network-side device in a case where the user equipment uses respective resources. In this way, the interfered network side device can feed back the interference influence information table, so that the electronic device can perform interference coordination according to the interference influence information table, thereby reducing or avoiding interference caused by uplink information from the user equipment to other network side devices.
Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure. In the drawings:
FIG. 1 is a schematic diagram illustrating an application scenario according to an embodiment of the present disclosure;
fig. 2 is a block diagram illustrating an example of a configuration of an electronic device according to an embodiment of the present disclosure;
fig. 3 is a diagram illustrating an example of an interference impact information table according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating that a network-side device within an interfered area is interfered according to an embodiment of the present disclosure;
fig. 5 is a diagram illustrating an example of feedback information according to an embodiment of the present disclosure;
fig. 6 is a diagram illustrating an example of feedback information according to an embodiment of the present disclosure;
fig. 7 is a signaling flow diagram illustrating an interference coordination process according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram illustrating a scenario in which a ground station assists a non-ground network side device in performing an interference coordination process, in accordance with an embodiment of the present disclosure;
fig. 9 is a signaling flow diagram illustrating a non-terrestrial network-side device assisted by a ground station to perform an interference coordination procedure in accordance with an embodiment of the disclosure;
fig. 10 is a flowchart illustrating a wireless communication method performed by an electronic device according to an embodiment of the present disclosure;
fig. 11 is a block diagram showing a first example of a schematic configuration of an eNB (Evolved Node B); and
fig. 12 is a block diagram showing a second example of the schematic configuration of an eNB.
While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the description herein of specific embodiments is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the disclosure. It is noted that throughout the several views, corresponding reference numerals indicate corresponding parts.
Detailed Description
Examples of the present disclosure will now be described more fully with reference to the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses.
Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms, and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known structures, and well-known technologies are not described in detail.
The description will be made in the following order:
1. a description of a scene;
2. a configuration example of an electronic device;
3. a method embodiment;
4. application examples.
<1. description of the scene >
Fig. 1 is a schematic diagram illustrating an application scenario of the present disclosure. As shown in fig. 1, the NTN-gNB serves the NTN-UE1 and the NTN-UE2, and there are a plurality of TN-gnbs on the ground that serve the TN-UEs. In the case where the NTN-UE1 transmits uplink information to the NTN-gNB using beamforming techniques, a TN-gNB in the vicinity of the NTN-UE1 may receive uplink information from the TN-UE at the same frequency, and thus the TN-gNB may receive information from the NTN-UE1 that is interference information for the TN-gNB. Similarly, in the case where the NTN-UE2 transmits uplink information to the NTN-gNB using beamforming techniques, the TN-gNB in the vicinity of the NTN-UE2 may receive uplink information from the TN-UE at the same frequency, and thus the TN-gNB may receive information from the NTN-UE2 that is interference information for the TN-gNB.
The present disclosure is directed to a scenario in which an electronic device in a wireless communication system, a wireless communication method performed by the electronic device in the wireless communication system, and a computer-readable storage medium are proposed to perform interference coordination to reduce or avoid uplink interference in the wireless communication system including an NTN.
It is noted that although fig. 1 shows an example in which the TN-gNB is interfered by the uplink information in the NTN, not only the network side device in the TN, but also the network side device in the NTN may be interfered with. For example, a network-side device on a satellite device located in a low orbit or a medium orbit in the NTN may be interfered by uplink information from the NTN-UE1 or the NTN-UE2 to the NTN-gNB located on the satellite device as shown in fig. 1.
The wireless communication system according to the present disclosure may be a 5G NR (New Radio) communication system. Further, a wireless communication system according to the present disclosure may include an NTN. That is, a wireless communication system according to the present disclosure may include one or more non-terrestrial network-side devices and one or more user devices served by the non-terrestrial network-side devices. Preferably, a wireless communication system according to the present disclosure may include NTNs and TNs. That is, a wireless communication system according to the present disclosure may include one or more non-terrestrial network-side devices, one or more user devices served by the non-terrestrial network-side devices, and one or more user devices served by the terrestrial network-side devices.
The network side device according to the present disclosure may be any type of base station device, for example, eNB, or gNB (base station in 5 th generation communication system).
A terrestrial network-side device according to the present disclosure may be a network-side device located on the ground. A non-terrestrial network-side device according to the present disclosure may be a network-side device located on a satellite device. The satellite devices may include, for example, GEO (Geosynchronous Orbit) satellite devices, LEO (Low Earth Orbit) satellite devices, MEO (Medium Earth Orbit) satellite devices, HEO (High elliptic Orbit) satellite devices, and HAPS (High Altitude Platform) satellite devices.
In addition, the non-terrestrial network side device may be a transparent base station device, that is, the device only has functions of receiving and transmitting information, and does not have a data processing capability, and when the transparent base station device receives the information, the device must be forwarded to another device (for example, a processing device located on the ground) having a data processing capability to perform data processing. The base station device in the NTN may also be a non-transparent base station device, i.e. having data processing capability.
The user equipment according to the present disclosure may be a mobile terminal such as a smart phone, a tablet Personal Computer (PC), a notebook PC, a portable game terminal, a portable/cryptographic dog-type mobile router, and a digital camera device, or a vehicle-mounted terminal such as a car navigation apparatus. The user equipment may also be implemented as a terminal (also referred to as a Machine Type Communication (MTC) terminal) that performs machine-to-machine (M2M) communication. Further, the user equipment may be a wireless communication module (such as an integrated circuit module including a single chip) mounted on each of the above-described terminals.
<2. configuration example of electronic apparatus >
Fig. 2 is a block diagram illustrating an example of a configuration of an electronic apparatus 200 according to an embodiment of the present disclosure. The electronic device 200 may be a network side device in a wireless communication system. For example, the electronic device 200 may be a non-terrestrial network side device, and may also be a terrestrial network side device.
As shown in fig. 2, the electronic device 200 may include an area determination unit 210, an interfered device determination unit 220, a generation unit 230, and a communication unit 240.
Here, each unit of the electronic device 200 may be included in the processing circuit. The electronic device 200 may include one processing circuit or may include a plurality of processing circuits. Further, the processing circuitry may include various discrete functional units to perform various different functions and/or operations. It should be noted that these functional units may be physical entities or logical entities, and that units called differently may be implemented by the same physical entity.
According to an embodiment of the present disclosure, the area determination unit 210 may determine an interfered area of the user equipment. Here, the interfered area is for the user equipment. That is, the area determination unit 210 may determine an interfered area of any one user equipment for which the electronic device 200 provides a service. Here, the interfered area indicates an area which is interfered by uplink information transmitted by the user equipment.
According to the embodiment of the present disclosure, the interfered device determining unit 220 may determine an interfered network side device according to an interfered area of the user equipment.
According to an embodiment of the present disclosure, the generating unit 230 may generate an interference impact information table including a level of interference caused to the interfered network side device in a case where the user equipment uses the respective resources.
According to the embodiment of the present disclosure, the electronic device 200 may transmit the interference influence information table to the interfered network-side device through the communication unit 240.
As can be seen from this, according to the electronic device 200 of the embodiment of the present disclosure, the interfered area of the user equipment may be determined, and the network side device subjected to interference may be determined, so as to generate the interference influence information table. In this way, the interfered network side device can feed back the interference influence information table, so that the electronic device can perform interference coordination according to the interference influence information table, thereby reducing or avoiding interference caused by uplink information from the user equipment to other network side devices.
According to the embodiment of the disclosure, the interfered area of the user equipment represents an area interfered by uplink information transmitted by the user equipment. In other words, the interfered area indicates an area within a predetermined range around the ue, and when the network side device in the area receives the uplink signal using the same frequency domain resource as the ue, the network side device in the area may be interfered by the uplink information sent by the ue.
Further, the destination of the uplink information sent by the user equipment is the non-ground network side equipment. For example, in a case where the electronic device 200 is a non-terrestrial network side device that currently provides a service for the user equipment, the destination of the uplink information transmitted by the user equipment may be the electronic device 200. Alternatively, in the case that the electronic device 200 is a ground network side device currently providing service for the user equipment, the destination of the uplink information sent by the user equipment may be a non-ground network side device that is to provide service for the user equipment.
As shown in fig. 1, the region around the NTN-UE1 shown with an oval region represents the interfered region of the NTN-UE1, and the region around the NTN-UE2 shown with an oval region represents the interfered region of the NTN-UE 2.
According to an embodiment of the present disclosure, the region determining unit 210 may determine an interfered region of the user equipment according to the position, beam, and transmission power of the user equipment.
Specifically, the area determining unit 210 may determine the location of the interfered area of the user equipment according to the location of the user equipment, determine the direction of the interfered area relative to the location of the user equipment according to the beam direction in which the user equipment transmits the uplink information, and determine the size of the interfered area according to the transmission power in which the user equipment transmits the uplink information.
According to an embodiment of the present disclosure, the electronic device 200 may transmit request information to the user equipment through the communication unit 240 to request location information, beam radiation characteristic information, and transmission power information of the user equipment. Further, the electronic device 200 may receive, from the user equipment through the communication unit 240, the location information, the beam radiation characteristic information, and the transmission power information, which are transmitted by the user equipment in response to the request information.
According to an embodiment of the present disclosure, the electronic device 200 may determine a user equipment that needs to perform interference coordination. For example, the electronic device 200 may send request information to all user devices within its coverage area to perform interference coordination for all user devices. Alternatively, the electronic device 200 may transmit request information only to the user equipments in the area with relatively large interference to perform interference coordination for the part of the user equipments. Alternatively, since the user equipment is or will be served by the non-terrestrial network side device, and the motion of the non-terrestrial network side device has periodicity, the electronic device 200 may determine an area with relatively large interference based on the history information, and thus transmit the request information to the user equipment in the area with relatively large interference.
According to the embodiment of the present disclosure, the interfered area determined by the area determining unit 210 may be a two-dimensional area or a three-dimensional area. When the interfered area is a two-dimensional area, the area determining unit 210 may determine an area of a predetermined range around the user equipment located on the ground as the interfered area; when the interfered area is a three-dimensional area, the area determination unit 210 may determine an area located at a predetermined range around the user equipment in the three-dimensional space as the interfered area.
According to an embodiment of the present disclosure, after the interfered area of the user equipment is determined by the area determining unit 210 as described above, the interfered equipment determining unit 220 may determine a network side equipment in the interfered area as an interfered network side equipment.
According to an embodiment of the present disclosure, in a case that the interfered area is a two-dimensional area, the interfered device determining unit 220 may determine the ground network side device in the interfered area as the interfered network side device. That is, only the interference of the uplink information sent from the user equipment to the non-terrestrial network side equipment to the terrestrial network side equipment is considered. In the case that the interfered area is a three-dimensional area, the interfered device determining unit 220 may determine the ground network side device and the non-ground network side device in the interfered area as interfered network side devices. That is, not only the interference of the uplink information transmitted from the user equipment to the non-terrestrial network side device with the terrestrial network side device, but also the interference of the uplink information transmitted from the user equipment to the non-terrestrial network side device with other non-terrestrial network side devices are considered. For example, upstream information sent from the user equipment to the GEO may cause interference to the MEO or LEO.
According to an embodiment of the present disclosure, the interference impact information table generated by the generation unit 230 includes the level of interference caused to the interfered network side device in the case where the user equipment uses the respective resources. Preferably, the interference impact information table includes a mapping relationship between each of a plurality of resources used by the user equipment and a level of interference caused to the interfered network side device in a case where the user equipment uses the resource.
According to an embodiment of the present disclosure, the resources used by the user equipment include: time domain resources used by the user equipment, frequency domain resources used by the user equipment, and beams used by the user equipment. That is, the interference influence information table includes a plurality of mapping relationships, each of which represents a mapping relationship between a time domain resource used by the user equipment, a frequency domain resource used by the user equipment, a beam used by the user equipment, and a level of interference experienced by the interfered network-side device.
According to the embodiments of the present disclosure, the time domain resource used by the ue indicates the time (e.g., indicated by a time slot) when the ue transmits the uplink information, the frequency domain resource used by the ue indicates the frequency (e.g., indicated by BWP (BandWidth Part)) used by the ue when the ue transmits the uplink information, and the beam used by the ue indicates the spatial domain information (e.g., the beam direction and the beam width) used when the ue transmits the uplink information. That is, the level of interference experienced by the interfered network side device represents the level of interference caused to the network side device when the user equipment transmits uplink information using the frequency represented by the frequency domain resource and the beam represented by the beam at the time represented by the time domain resource.
Fig. 3 is a diagram illustrating an example of an interference influence information table according to an embodiment of the present disclosure. As shown in fig. 3, f represents a frequency domain resource used by the user equipment, s represents a beam used by the user equipment, t represents a time domain resource used by the user equipment, and IL (Interference Level) represents a Level of Interference experienced by the network side equipment. In fig. 3, f1, s1, t1 have a mapping relationship with IL1, f2, s2, t2 have a mapping relationship with IL2, and …, fN, sN, tN have a mapping relationship with ILN. That is, the level of interference received by the network side device when the user equipment transmits uplink information using f1, s1, and t1 is IL1, the level of interference received by the network side device when the user equipment transmits uplink information using f2, s2, and t2 is IL2 and …, and the level of interference received by the network side device when the user equipment transmits uplink information using fN, sN, and tN is ILN. It should be noted that 1, 2, …, and N in fig. 3 are only sequence numbers for distinguishing mapping relationships in the interference impact information table, and different sequence numbers may correspond to the same resource. For example, f1 and f2 may be the same frequency domain resource, or s1 and s2 may be the same beam, etc. That is, the electronic device 200 may determine the level of interference for different combinations of frequency domain resources, time domain resources, and beams.
According to an embodiment of the present disclosure, the level of interference may be represented by the transmission power of the user equipment, i.e., IL in fig. 3 represents the transmission power of the user equipment. That is, each mapping relationship represents a mapping relationship between time domain resources used by the user equipment, frequency domain resources used by the user equipment, beams used by the user equipment, and transmission power of the user equipment. In this case, the interference impact information table is not associated with the interfered network-side device, so the generating unit 230 may generate the same interference impact information table for all the interfered network-side devices.
According to the embodiment of the present disclosure, the interference level may also be represented by a value of interference experienced by the interfered network side device, that is, IL in fig. 3 represents a value of interference experienced by the interfered network side device. That is, each mapping relationship represents a mapping relationship between a time domain resource used by the user equipment, a frequency domain resource used by the user equipment, a beam used by the user equipment, and a value of interference experienced by the interfered network-side device. In this case, the interference influence information table is associated with the interfered network-side device, and therefore the generating unit 230 generates one interference influence information table for each interfered network-side device.
According to the embodiment of the present disclosure, the electronic device 200 may determine the level of interference corresponding to each combination of the frequency domain resource, the time domain resource, and the beam, thereby determining the interference impact information table. Specifically, the electronic device 200 may utilize a specific propagation model (including but not limited to a free space propagation model) to calculate a value of interference suffered by the interfered network-side device according to the location of the user equipment, the transmission power, the beam direction and width, and the location of the interfered network-side device. Here, the electronic device 200 may calculate the value of the interference according to any method known in the art, which is not limited by the present disclosure.
As described above, after the generation unit 230 generates the interference influence information table, the electronic device 200 may transmit the corresponding interference influence information table to each interfered network-side device through the communication unit 240.
According to the embodiment of the present disclosure, the electronic device 200 may further receive feedback information for the interference impact information table from the interfered network-side device through the communication unit 240.
According to an embodiment of the present disclosure, the feedback information may include a value of interference experienced by the interfered network side device in a case where the user equipment uses the respective resource. That is, the feedback information may include a mapping relationship between each of a plurality of resources used by the user equipment and a value of interference experienced by the interfered network-side device in a case where the user equipment uses the resource. According to the embodiment of the present disclosure, the value of interference suffered by the interfered network side device included in the feedback information takes into account the beam information of the interfered network side device, for example, including information such as beam direction and beam width.
Here, if the level of interference in the interference influence information table received by the interfered network-side device is represented by the transmission power of the user equipment, the interfered network-side device may determine the value of interference corresponding thereto for each set of frequency domain resources, time domain resources, and beams used by the user equipment, thereby determining the feedback information. Specifically, the interfered network-side device may utilize a specific propagation model (including but not limited to a free space propagation model) to calculate a value of interference suffered by the interfered network-side device according to the position, the transmission power, the beam direction and the width of the user equipment and the position, the beam direction and the width of the interfered network-side device. If the interference level in the interference impact information table received by the interfered network-side device is represented by the value of the interference experienced by the interfered network-side device, the interfered network-side device may further calculate the value of the interference experienced by the interfered network-side device on the basis of the value.
Fig. 4 is a schematic diagram illustrating that a network side device within an interfered area is interfered according to an embodiment of the disclosure. As shown in fig. 4, assume that the interfered area of the NTN-UE includes the gNB1 on the ground. If the gNB1 receives uplink information from the TN-UE using beam 1, it may be interfered with by the uplink information from the NTN-UE; if the gNB1 receives uplink information from TN-UE using beam 2, the gNB1 may not be interfered with by the uplink information from the NTN-UE because the receive beam of the gNB1 is in a different direction than the NTN-UE.
According to an embodiment of the present disclosure, as shown in fig. 4, the value of the interference experienced by the interfered network-side device is related to the beam used by the interfered network-side device. Here, since it is difficult for the electronic apparatus 200 to acquire the beam information of the interfered network-side apparatus, the level of interference in the interference influence information table generated by the electronic apparatus 200 does not take into account the beam information of the interfered network-side apparatus. According to the embodiment of the disclosure, each interfered network side device can calculate the value of the interference on the basis of the interference influence information table by further considering the beam information, so that the calculated value of the interference is more accurate.
As described above, according to the embodiment of the present disclosure, the feedback information received by the electronic device 200 may include a mapping relationship between each resource used by the user equipment and a value of interference experienced by the interfered network side device in a case where the user equipment uses the resource.
According to the embodiment of the present disclosure, each interfered network side device may also determine a tolerance level of the interfered network side device to interference under the condition that the user equipment uses each resource. For example, the interfered network side device may determine the tolerance level to the interference according to a relationship between a value of the interference experienced by the interfered network side device and an interference threshold. Here, the tolerance to the interference can be simply expressed by whether the interference can be tolerated or not. Specifically, in the case that the value of the received interference is greater than the interference threshold, the interfered network side device may determine that the interference cannot be tolerated; in the case where the value of the received interference is not greater than the interference threshold, the interfered network-side device may determine that the interference can be tolerated. In this way, the interfered network side device may sequentially determine the tolerance level of the interfered network side device to interference under the condition that the user equipment uses each resource.
According to an embodiment of the present disclosure, the interference threshold may be determined by the electronic device 200 and transmitted to the interfered network side device.
According to the embodiment of the present disclosure, the feedback information received by the electronic device 200 may include the tolerance level of the interfered network side device to interference in the case that the user equipment uses various resources. That is, the feedback information may include a mapping relationship between each resource used by the user equipment and a tolerance level of the interfered network side device to interference in a case where the user equipment uses the resource.
Fig. 5 is a diagram illustrating an example of feedback information according to an embodiment of the present disclosure. Fig. 5 shows an example in which the feedback information includes the tolerance level of the interfered network side device to interference in the case where the user equipment uses the respective resources. As shown in fig. 5, "yes/no" indicates whether the interfered network side device can tolerate the interference. If yes is indicated in yes/no corresponding to f1, s1 and t1, the fact indicates that the network side equipment can tolerate the interference from the user equipment when the user equipment transmits uplink information by using f1, s1 and t 1; if "no" is indicated in "yes/no" corresponding to f1, s1, and t1, it indicates that the network side device cannot tolerate interference from the user equipment when the user equipment transmits uplink information using f1, s1, and t 1.
Fig. 6 is a diagram illustrating an example of feedback information according to an embodiment of the present disclosure. Fig. 6 shows an example in which the feedback information includes values of interference experienced by the interfered network-side device in a case where the user equipment uses the respective resources. As shown in fig. 6, when the user equipment transmits uplink information using f1, s1, and t1, the value of interference received by the interfered network side equipment is interference value 1, when the user equipment transmits uplink information using f2, s2, and t2, the value of interference received by the interfered network side equipment is interference value 2 and …, and when the user equipment transmits uplink information using fN, sN, and tN, the value of interference received by the interfered network side equipment is interference value N.
As mentioned above, fig. 5 and 6 show two non-limiting examples of feedback information. According to the embodiment of the present disclosure, if the interfered network side device determines that the interference tolerance of the interfered network side device is tolerable under the condition that the user equipment uses each resource, the feedback information sent by the interfered network side device may be simpler, for example, only 1 bit indicates that the interfered network side device can tolerate the interference under the condition that the user equipment uses each resource. In this case, the electronic device 200 may not perform the interference coordination process.
According to an embodiment of the present disclosure, as shown in fig. 2, the electronic device 200 may further include a coordination unit 250 for coordinating interference from the user equipment according to the feedback information.
According to the embodiment of the present disclosure, if the feedback information includes the tolerance level of the interfered network side device to interference under the condition that the user equipment uses each resource, the coordinating unit 250 may directly obtain the tolerance level of the interfered network side device to interference under the condition that the user equipment uses each resource from the feedback information. If the feedback information includes the interference value received by the interfered network-side device when the user equipment uses each resource, the coordination unit 250 needs to determine, according to the feedback information, the tolerance level of the interfered network-side device to the interference when the user equipment uses each resource. Similarly, the coordinating unit 250 may determine the tolerance level of the interfered network-side device to the interference according to the relationship between the value of the interference experienced by the interfered network-side device and the interference threshold. Here, the tolerance to the interference can be simply expressed by whether the interference can be tolerated or not. Specifically, in the case that the value of the received interference is greater than the interference threshold, the coordination unit 250 may determine that the interfered network-side device cannot tolerate the interference; in the case that the value of the received interference is not greater than the interference threshold, the coordination unit 250 may determine that the interfered network-side device can tolerate the interference. In this way, the coordination unit 250 may sequentially determine the tolerance level of the interfered network side device to interference in the case that the user equipment uses each resource.
According to the embodiment of the present disclosure, in a case that the interfered network side device cannot tolerate the interfered interference, the coordinating unit 250 may adjust the resource used by the user equipment. That is, in the case that the user uses each resource, as long as there is a case that the interfered network side device cannot tolerate the interfered interference, the coordination unit 250 may adjust the resource used by the user device so as to perform the interference coordination procedure.
According to an embodiment of the present disclosure, the electronic device 200 may further transmit a result of the interference coordination to the user equipment through the communication unit 240. Optionally, if necessary, the electronic device 200 may further transmit the result of the interference coordination to the interfered network-side device through the communication unit 240.
According to the embodiment of the present disclosure, in a case that the interfered network side device cannot tolerate the interfered interference when the user equipment uses the specific time domain resource, the coordinating unit 250 may mute the user equipment on the specific time domain resource. For example, if the user equipment uses f1, s1, and t1, the interfered network side device can tolerate the received interference, and if the user equipment uses f2, s2, and t2, the interfered network side device cannot tolerate the received interference, where f1 and f2 represent the same frequency domain resource, s1 and s2 represent the same beam, and t1 and t2 represent different time domain resources, in which case, the coordination unit 250 may mute the user equipment at t2, thereby avoiding or reducing the interference caused to the interfered network side device. Further, the electronic device 200 may transmit adjustment information indicating that the user device is silent at t2 to the user device through the communication unit 240.
According to the embodiment of the present disclosure, in the case that the interfered network side device cannot tolerate the interfered interference when the user device uses the specific frequency domain resource, the coordination unit 250 may perform probabilistic frequency hopping so that the specific frequency domain resource is selected with a low probability. For example, if the user equipment uses f1, s1, t1, the interfered network side equipment can tolerate the interfered interference, and if the user equipment uses f2, s2, t2, the interfered network side equipment cannot tolerate the interfered interference, where f1 and f2 represent different frequency domain resources, s1 and s2 represent the same beam, and t1 and t2 represent the same time domain resource, the coordination unit 250 may perform probability hopping such that f2 is selected with a low probability, and f1 is selected with a high probability. In this way, the interference caused by the user equipment to the interfered network side equipment can be avoided or reduced substantially. Further, the electronic device 200 may transmit information of probability frequency hopping to the user device and the interfered network side device through the communication unit 240.
According to the embodiment of the disclosure, in the case that the interfered network side device cannot tolerate the interfered interference when the user equipment uses the specific beam, the beam used by the user equipment is adjusted to a beam other than the specific beam. For example, if the user equipment uses f1, s1, t1, the interfered network side equipment can tolerate the received interference, and if the user equipment uses f2, s2, t2, the interfered network side equipment cannot tolerate the received interference, where f1 and f2 represent the same frequency domain resource, s1 and s2 represent different beams, and t1 and t2 represent the same time domain resource, in which case the coordination unit 250 may perform dynamic beam planning on the communication between the user equipment and the interfered network side equipment, that is, adjust the beam used by the user equipment to a beam other than s 2. In this way, the interference caused by the user equipment to the interfered network side equipment can be avoided or reduced. Further, the electronic apparatus 200 may transmit adjustment information including the adjusted beam to the user equipment through the communication unit 240. Further, the adjustment information may further include a start time and an end time of the beam adjustment.
According to an embodiment of the present disclosure, there may be a case where frequency domain resources of a user equipment are bound with a beam. That is, the frequency domain resources of the user equipment have a correspondence with the beams. In this case, in the case of adjusting the frequency domain resource of the user equipment, the beam of the user equipment also needs to be adjusted; in case of adjusting the beam of the user equipment, the frequency domain resource of the user equipment also needs to be adjusted. That is, the user equipment needs to ensure that the frequency domain resources after adjustment also have a correspondence with the beams.
For example, the user device may be configured with 3 BWPs, BWP1, BWP2 and BWP3 respectively and 3 beams, beam 1, beam 2 and beam 3 respectively, where BWP1 is bound to beam 1, BWP2 is bound to beam 2 and BWP3 is bound to beam 3. That is, control and/or data channels operating in BWP1 are transmitted by beam 1 only, control and/or data channels operating in BWP2 are transmitted by beam 2 only, and control and/or data channels operating in BWP3 are transmitted by beam 3 only. In this case, if the user equipment receives the adjustment information to adjust BWP1 to BWP2, the user equipment needs to adjust beam 1 to beam 2 as well; if the user device receives the adjustment information to adjust beam 2 to beam 3, the user device needs to adjust BWP2 to BWP 3. For another example, the frequency domain resources used by three adjacent terrestrial cells are frequency band 1, frequency band 2 and frequency band 3, and the corresponding beams are beam 1, beam 2 and beam 3. That is, when the user equipment accesses a cell operating in band 1, the user equipment transmits and/or receives using beam 1, when the user equipment accesses a cell operating in band 2, the user equipment transmits and/or receives using beam 2, and when the user equipment accesses a cell operating in band 3, the user equipment transmits and/or receives using beam 3. In this case, if the user equipment receives the adjustment information for adjusting the frequency band 1 to the frequency band 2, the user equipment needs to adjust the beam 1 to the beam 2 as well; if the user equipment receives the adjustment information for adjusting beam 2 to beam 3, the user equipment needs to adjust band 2 to band 3.
As described above, the electronic device 200 may perform interference coordination according to the feedback information by sending the interference impact information table to the interfered network-side device and receiving the feedback information from the interfered network-side device, so as to reduce or avoid interference caused by the uplink information from the user equipment to the interfered network-side device. Such an electronic device 200 may be a non-terrestrial network-side device that is currently serving user equipment, such as a network-side device located on a satellite device. That is, the uplink information transmitted by the user equipment is the uplink information transmitted to the electronic device 200.
Fig. 7 is a signaling flow diagram illustrating an interference coordination process according to an embodiment of the present disclosure. In fig. 7, the NTN-gNB may be implemented by the electronic device 200, the NTN-UE is currently served by the NTN-gNB, and the interfered gNB may be another NTN-gNB or a TN-gnnb. As shown in fig. 7, in step S701, the NTN-gNB transmits request information to the NTN-UE to request information of the position, beam radiation characteristics, and transmission power of the NTN-UE. Next, in step S702, the NTN-UE transmits information such as its position, beam radiation characteristics, and transmission power to the NTN-gNB. Next, in step S703, the NTN-gNB determines an interfered area of the NTN-UE according to the position of the NTN-UE, the beam radiation characteristic, and the transmission power. Next, in step S704, the NTN-gNB determines an interfered gNB in the interfered area according to the interfered area of the NTN-UE. Next, in step S705, the NTN-gNB generates an interference impact information table, wherein the same interference impact information table may be generated for all interfered gnbs, or a different interference impact information table may be generated for each interfered gNB. Next, in step S706, the NTN-gNB transmits an interference impact information table to each interfered gNB. Next, in step S707, each interfered gNB generates feedback information. Next, in step S708, each interfered gNB sends feedback information to the NTN-gNB. Next, if the feedback information sent in step S708 indicates that the interfered gNB cannot tolerate interference, in step S709, the NTN-gNB performs interference coordination, e.g., adjusts resource information used by the NTN-UE, according to the received feedback information. Next, in step S710, the NTN-gNB transmits the result of the adjustment to the NTN-UE. Optionally, the NTN-gNB may also send the result of the adjustment to the interfered gNB. Furthermore, if the feedback information sent in step S708 indicates that there is no interference intolerant situation for the interfered gNB, the flow terminates, i.e., the NTN-gNB does not have to perform interference coordination. As shown in fig. 7, by transferring the interference impact information table between the gnbs, the interference of the uplink information from the NTN-UE can be effectively avoided or reduced.
According to the embodiment of the present disclosure, the electronic device 200 may also be a terrestrial network side device that currently provides a service for the user equipment. The ground network side device may be a ground base station device, or may be a ground station for providing service to the satellite device. In this case, the uplink information sent by the ue is the uplink information sent to the non-terrestrial network side device that is about to provide service for the ue.
According to the embodiment of the present disclosure, the electronic device 200, which is a ground network side device, may transmit the interference influence information table to each interfered network side device, and receive feedback information from the interfered network side device. Further, the electronic device 200 may transmit the received feedback information to the non-terrestrial network side device that is to provide a service for the user device through the communication unit 240. Next, the non-terrestrial network side device that is to provide service for the user equipment may perform interference coordination in advance according to the feedback information. In this disclosure, a manner in which the non-terrestrial network side device that is to provide service for the user equipment performs interference coordination may be the same as the manner in which the electronic device 200 performs interference coordination, and details are not repeated here.
Fig. 8 is a schematic diagram illustrating a scenario in which a ground station assists a non-ground network side device in performing an interference coordination process according to an embodiment of the disclosure. As shown in fig. 8, the non-terrestrial network side device is located at location 1 and has not yet provided service to the user equipment. The ground station may obtain feedback information by performing information interaction with the interfered gNB, and send the feedback information to the non-ground network side device at location 1. Next, the non-terrestrial network side device located at location 1 may perform an interference coordination procedure. When the non-terrestrial network side equipment moves from the position 1 to the position 2, the service is provided for the user equipment. That is, the interference coordination procedure is already performed when the non-terrestrial network side device provides service for the user equipment.
Fig. 9 is a signaling flow diagram illustrating a process for assisting a non-terrestrial network-side device by a ground station to perform interference coordination according to an embodiment of the disclosure. The ground station in fig. 9, which may be implemented by the electronic device 200, is currently serving the NTN-UE. As shown in fig. 9, in step S901, the ground station transmits request information to the NTN-UE to request information such as the position, beam radiation characteristics, and transmission power of the NTN-UE. Next, in step S902, the NTN-UE transmits information such as its position, beam radiation characteristics, and transmission power to the ground station. Next, in step S903, the ground station determines an interfered area of the NTN-UE according to the position of the NTN-UE, the beam radiation characteristic, and the transmission power. Next, in step S904, the ground station determines an interfered gNB in the interfered area according to the interfered area of the NTN-UE. Next, in step S905, the ground station generates an interference impact information table, where the same interference impact information table may be generated for all interfered gnbs, or a different interference impact information table may be generated for each interfered gNB. Next, in step S906, the ground station transmits an interference influence information table to each interfered gNB. Next, in step S907, each interfered gNB generates feedback information. Next, in step S908, each interfered gNB transmits feedback information to the ground station. Next, in step S909, the ground station transmits feedback information of each interfered gNB to the NTN-gNB that is to provide service for the NTN-UE. Next, if the feedback information sent in step S909 indicates that the interfered gNB cannot tolerate the interference, then in step S910, the NTN-gNB performs interference coordination, e.g., adjusts resource information used by the NTN-UE, according to the received feedback information. Next, in step S911, the NTN-gNB transmits the result of the adjustment to the NTN-UE. Optionally, the NTN-gNB may also send the result of the adjustment to the interfered gNB. Further, if the feedback information transmitted in step S909 indicates that there is no interference intolerant situation for the interfered gNB, the flow terminates, i.e., the NTN-gNB does not have to perform interference coordination. As shown in fig. 9, with the assistance of the ground station, the NTN-gNB that is about to provide service for the NTN-UE may perform an interference coordination procedure in advance, so as to effectively avoid or reduce interference of uplink information from the NTN-UE when the NTN-gNB provides service for the NTN-UE.
As described above, according to the embodiments of the present disclosure, in a case that a non-terrestrial network device does not provide a service for a user equipment yet, an interference coordination process may be performed in advance with assistance of a terrestrial network device, so that in a case that the non-terrestrial network device provides a service for the user equipment, interference caused by uplink information sent by the user equipment to the non-terrestrial network device on other network devices is avoided or reduced.
Therefore, according to the embodiment of the disclosure, the interference coordination process can be executed more accurately and effectively by interacting the interference influence information table and the corresponding feedback information between the network side devices, so that interference caused by uplink information from the user equipment to the non-ground network side device on other network side devices is reduced or avoided.
<3. method example >
Next, a wireless communication method performed by the electronic apparatus 200 as a network-side apparatus in the wireless communication system according to an embodiment of the present disclosure will be described in detail.
Fig. 10 is a flowchart illustrating a wireless communication method performed by the electronic apparatus 200 as a network-side apparatus in the wireless communication system according to an embodiment of the present disclosure.
As shown in fig. 10, in step S1010, an interfered area of the user equipment is determined, where the interfered area includes an area interfered by uplink information transmitted by the user equipment.
Next, in step S1020, the interfered network side device is determined according to the interfered area of the user equipment.
Next, in step S1030, an interference impact information table is generated, which includes levels of interference caused to the interfered network-side device in the case where the user equipment uses the respective resources.
Next, in step S1040, the interference influence information table is transmitted to the interfered network side device.
Preferably, the determining the interfered area of the user equipment in step S1010 includes: an interfered area of the user equipment is determined according to the position, beam and transmission power of the user equipment.
Preferably, the interfered area is a two-dimensional area or a three-dimensional area, when the interfered area is the two-dimensional area, the interfered network-side device includes a ground network-side device in the interfered area, and when the interfered area is the three-dimensional area, the interfered network-side device includes a ground network-side device and a non-ground network-side device in the interfered area.
Preferably, the resources used by the user equipment include: time domain resources used by the user equipment, frequency domain resources used by the user equipment, and beams used by the user equipment.
Preferably, the level of interference comprises a transmit power of the user equipment.
Preferably, the level of interference comprises a value of interference experienced by the interfered network side device.
Preferably, the wireless communication method further includes: receiving feedback information aiming at the interference influence information table from the interfered network side equipment, wherein the feedback information comprises the interference value suffered by the interfered network side equipment under the condition that the user equipment uses each resource, or the feedback information comprises the tolerance degree of the interfered network side equipment to the interference under the condition that the user equipment uses each resource.
Preferably, the wireless communication method further includes: according to the feedback information, determining the tolerance degree of the interfered network side equipment to the interference under the condition that the user equipment uses each resource; under the condition that the interfered network side equipment cannot tolerate the interfered interference, adjusting the resources used by the user equipment; and sending the adjusted result to the user equipment.
Preferably, the adjusting the resources used by the user equipment comprises: under the condition that the interfered network side equipment cannot tolerate the interfered interference when the user equipment uses the specific time domain resource, the user equipment is silenced on the specific time domain resource; performing probabilistic frequency hopping so that a particular frequency domain resource is selected with a low probability in case that the interfered network side device cannot tolerate the interfered interference when the user device uses the particular frequency domain resource; and in the case that the interfered network side device cannot tolerate the interfered interference when the user equipment uses the specific beam, adjusting the beam used by the user equipment to be a beam other than the specific beam.
Preferably, the electronic device is a non-terrestrial network-side device that provides services for the user equipment.
Preferably, the electronic device is a ground network side device that provides a service for the user equipment, and the wireless communication method further includes: and sending the feedback information to the non-ground network side equipment which is to provide service for the user equipment.
According to an embodiment of the present disclosure, the main body performing the above method may be the electronic device 200 according to an embodiment of the present disclosure, and thus all the embodiments described above with respect to the electronic device 200 are applicable thereto.
<4. application example >
The techniques of this disclosure can be applied to a variety of products.
For example, the network side device may be implemented as any type of base station device, such as a macro eNB and a small eNB, and may also be implemented as any type of gNB (base station in a 5G system). The small eNB may be an eNB that covers a cell smaller than a macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB. Alternatively, the base station may be implemented as any other type of base station, such as a NodeB and a Base Transceiver Station (BTS). The base station may include: a main body (also referred to as a base station apparatus) configured to control wireless communication; and one or more Remote Radio Heads (RRHs) disposed at a different place from the main body.
The user equipment may be implemented as a mobile terminal such as a smart phone, a tablet Personal Computer (PC), a notebook PC, a portable game terminal, a portable/cryptographic dog-type mobile router, and a digital camera, or a vehicle-mounted terminal such as a car navigation apparatus. The user equipment may also be implemented as a terminal (also referred to as a Machine Type Communication (MTC) terminal) that performs machine-to-machine (M2M) communication. Further, the user equipment may be a wireless communication module (such as an integrated circuit module including a single die) mounted on each of the user equipments described above.
< application example with respect to base station >
(first application example)
Fig. 11 is a block diagram illustrating a first example of a schematic configuration of an eNB to which the technology of the present disclosure may be applied. The eNB 1100 includes one or more antennas 1110 and a base station apparatus 1120. The base station apparatus 1120 and each antenna 1110 may be connected to each other via an RF cable.
Each of the antennas 1110 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna), and is used for the base station apparatus 1120 to transmit and receive wireless signals. As shown in fig. 11, eNB 1100 may include multiple antennas 1110. For example, the multiple antennas 1110 may be compatible with multiple frequency bands used by eNB 1100. Although fig. 11 shows an example in which eNB 1100 includes multiple antennas 1110, eNB 1100 may also include a single antenna 1110.
The base station apparatus 1120 comprises a controller 1121, a memory 1122, a network interface 1123, and a wireless communication interface 1125.
The controller 1121 may be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station apparatus 1120. For example, the controller 1121 generates a data packet from data in a signal processed by the wireless communication interface 1125 and transfers the generated packet via the network interface 1123. The controller 1121 may bundle data from a plurality of baseband processors to generate a bundle packet, and transfer the generated bundle packet. The controller 1121 may have a logic function of performing control as follows: such as radio resource control, radio bearer control, mobility management, admission control and scheduling. The control may be performed in connection with a nearby eNB or core network node. The memory 1122 includes a RAM and a ROM, and stores programs executed by the controller 1121 and various types of control data (such as a terminal list, transmission power data, and scheduling data).
Network interface 1123 is a communication interface for connecting base station apparatus 1120 to core network 1124. The controller 1121 may communicate with a core network node or another eNB via a network interface 1123. In this case, the eNB 1100 and a core network node or other enbs may be connected to each other through a logical interface, such as an S1 interface and an X2 interface. Network interface 1123 may also be a wired communication interface or a wireless communication interface for a wireless backhaul. If network interface 1123 is a wireless communication interface, network interface 1123 may use a higher frequency band for wireless communications than the frequency band used by wireless communication interface 1125.
Wireless communication interface 1125 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-advanced, and provides wireless connectivity via antenna 1110 to terminals located in the cell of eNB 1100. Wireless communication interface 1125 may generally include, for example, a baseband (BB) processor 1126 and RF circuitry 1127. BB processor 1126 may perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing of layers such as L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). In place of the controller 1121, the BB processor 1126 may have a part or all of the above-described logical functions. BB processor 1126 may be a memory storing a communication control program, or a module comprising a processor configured to execute programs and related circuitry. The update program may cause the function of BB processor 1126 to change. The module may be a card or blade that is inserted into a slot of the base station device 1120. Alternatively, the module may be a chip mounted on a card or blade. Meanwhile, the RF circuit 1127 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive a wireless signal via the antenna 1110.
As shown in fig. 11, wireless communication interface 1125 may include a plurality of BB processors 1126. For example, the plurality of BB processors 1126 may be compatible with multiple frequency bands used by eNB 1100. As shown in fig. 11, wireless communication interface 1125 may include a plurality of RF circuits 1127. For example, the plurality of RF circuits 1127 may be compatible with a plurality of antenna elements. Although fig. 11 shows an example in which wireless communication interface 1125 includes multiple BB processors 1126 and multiple RF circuits 1127, wireless communication interface 1125 may also include a single BB processor 1126 or a single RF circuit 1127.
(second application example)
Fig. 12 is a block diagram illustrating a second example of a schematic configuration of an eNB to which the technology of the present disclosure may be applied. eNB 1230 includes one or more antennas 1240, base station apparatus 1250, and RRH 1260. The RRH 1260 and each antenna 1240 may be connected to each other via an RF cable. The base station apparatus 1250 and the RRH 1260 may be connected to each other via a high-speed line such as a fiber optic cable.
Each of the antennas 1240 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the RRH 1260 to transmit and receive wireless signals. As shown in fig. 12, eNB 1230 may include multiple antennas 1240. For example, the multiple antennas 1240 may be compatible with multiple frequency bands used by the eNB 1230. Although fig. 12 shows an example in which eNB 1230 includes multiple antennas 1240, eNB 1230 may also include a single antenna 1240.
Base station device 1250 includes a controller 1251, memory 1252, a network interface 1253, a wireless communication interface 1255, and a connection interface 1257. The controller 1251, the memory 1252, and the network interface 1253 are the same as the controller 1121, the memory 1122, and the network interface 1123 described with reference to fig. 11.
Wireless communication interface 1255 supports any cellular communication scheme (such as LTE and LTE-advanced) and provides wireless communication via RRH 1260 and antenna 1240 to terminals located in a sector corresponding to RRH 1260. The wireless communication interface 1255 may generally include, for example, a BB processor 1256. The BB processor 1256 is the same as the BB processor 1126 described with reference to fig. 11, except that the BB processor 1256 is connected to the RF circuitry 1264 of the RRH 1260 via a connection interface 1257. As shown in fig. 12, wireless communication interface 1255 may include a plurality of BB processors 1256. For example, the plurality of BB processors 1256 may be compatible with the plurality of frequency bands used by the eNB 1230. Although fig. 12 shows an example in which the wireless communication interface 1255 includes a plurality of BB processors 1256, the wireless communication interface 1255 may include a single BB processor 1256.
Connection interface 1257 is an interface for connecting base station apparatus 1250 (wireless communication interface 1255) to RRH 1260. The connection interface 1257 may also be a communication module for communication in the above-described high-speed line that connects the base station apparatus 1250 (wireless communication interface 1255) to the RRH 1260.
RRH 1260 includes a connection interface 1261 and a wireless communication interface 1263.
Connection interface 1261 is an interface for connecting RRH 1260 (wireless communication interface 1263) to base station apparatus 1250. The connection interface 1261 may also be a communication module for communication in the above-described high-speed line.
Wireless communication interface 1263 transmits and receives wireless signals via antenna 1240. Wireless communication interface 1263 may generally include, for example, RF circuitry 1264. The RF circuitry 1264 may include, for example, mixers, filters, and amplifiers, and transmits and receives wireless signals via the antenna 1240. As shown in fig. 12, wireless communication interface 1263 may include a plurality of RF circuits 1264. For example, multiple RF circuits 1264 may support multiple antenna elements. Although fig. 12 illustrates an example in which wireless communication interface 1263 includes multiple RF circuits 1264, wireless communication interface 1263 may include a single RF circuit 1264.
In the eNB 1100 and the eNB 1230 shown in fig. 11 and 12, the area determination unit 210, the interfered device determination unit 220, the generation unit 230, and the coordination unit 250 described by using fig. 2 may be implemented by the controller 1121 and/or the controller 1251. At least a portion of the functionality can also be implemented by the controller 1121 and the controller 1251. For example, the controller 1121 and/or the controller 1251 may perform the functions of determining an interfered area of the user equipment, determining an interfered network side device, generating an interference impact information table, and performing interference coordination by executing instructions stored in a corresponding memory.
The preferred embodiments of the present disclosure are described above with reference to the drawings, but the present disclosure is of course not limited to the above examples. Various changes and modifications within the scope of the appended claims may be made by those skilled in the art, and it should be understood that these changes and modifications naturally will fall within the technical scope of the present disclosure.
For example, the units shown in the functional block diagrams in the figures as dashed boxes each indicate that the functional unit is optional in the corresponding apparatus, and the respective optional functional units may be combined in an appropriate manner to implement the required functions.
For example, a plurality of functions included in one unit may be implemented by separate devices in the above embodiments. Alternatively, a plurality of functions implemented by a plurality of units in the above embodiments may be implemented by separate devices, respectively. In addition, one of the above functions may be implemented by a plurality of units. Needless to say, such a configuration is included in the technical scope of the present disclosure.
In this specification, the steps described in the flowcharts include not only the processing performed in time series in the described order but also the processing performed in parallel or individually without necessarily being performed in time series. Further, even in the steps processed in time series, needless to say, the order can be changed as appropriate.
Further, the present disclosure may have a configuration as described below.
1. An electronic device comprising processing circuitry configured to:
determining an interfered area of user equipment, wherein the interfered area comprises an area interfered by uplink information sent by the user equipment;
determining interfered network side equipment according to the interfered area of the user equipment;
generating an interference impact information table, wherein the interference impact information table includes interference levels caused to the interfered network side device under the condition that the user equipment uses each resource; and
and sending the interference influence information table to the interfered network side equipment.
2. The electronic device of 1, wherein the processing circuitry is further configured to:
determining an interfered area of the user equipment according to the position, the beam and the transmission power of the user equipment.
3. The electronic device of claim 1, wherein the interfered area is a two-dimensional area or a three-dimensional area,
when the interfered area is a two-dimensional area, the interfered network side equipment comprises ground network side equipment in the interfered area,
when the interfered area is a three-dimensional area, the interfered network side equipment comprises ground network side equipment and non-ground network side equipment in the interfered area.
4. The electronic device of 1, wherein the resources used by the user equipment include: time domain resources used by the user equipment, frequency domain resources used by the user equipment, and beams used by the user equipment.
5. The electronic device of 1, wherein the level of interference comprises a transmit power of the user device.
6. The electronic device of 1, wherein the level of interference comprises a value of interference experienced by the interfered network-side device.
7. The electronic device of 1, wherein the processing circuitry is further configured to:
receiving feedback information aiming at the interference influence information table from the interfered network side equipment, wherein the feedback information comprises interference values suffered by the interfered network side equipment under the condition that the user equipment uses various resources, or the feedback information comprises the tolerance degree of the interfered network side equipment to the interference under the condition that the user equipment uses various resources.
8. The electronic device of claim 7, wherein the processing circuitry is further configured to:
determining the tolerance degree of the interfered network side equipment to interference under the condition that the user equipment uses each resource according to the feedback information;
adjusting the resource used by the user equipment under the condition that the interfered network side equipment cannot tolerate the interfered interference; and
and sending the adjusted result to the user equipment.
9. The electronic device of 8, wherein the processing circuitry is further configured to:
muting the user equipment on a specific time domain resource if the interfered network side equipment cannot tolerate the interfered interference when the user equipment uses the specific time domain resource;
performing probabilistic frequency hopping such that a particular frequency domain resource is selected with a low probability in case the interfered network side device cannot tolerate the interfered interference when the user device uses the particular frequency domain resource; and
and in the case that the interfered network side equipment cannot tolerate the interfered interference when the user equipment uses a specific beam, adjusting the beam used by the user equipment to be a beam other than the specific beam.
10. The electronic device of any of claims 1-9, wherein the electronic device is a non-terrestrial network-side device that serves the user device.
11. The electronic device of claim 7, wherein the electronic device is a terrestrial network-side device that provides services for the user device, and the processing circuitry is further configured to:
and sending the feedback information to the non-ground network side equipment which is to provide service for the user equipment.
12. A wireless communication method performed by an electronic device, comprising:
determining an interfered area of user equipment, wherein the interfered area comprises an area interfered by uplink information sent by the user equipment;
determining interfered network side equipment according to the interfered area of the user equipment;
generating an interference impact information table, wherein the interference impact information table includes interference levels caused to the interfered network side device under the condition that the user equipment uses each resource; and
and sending the interference influence information table to the interfered network side equipment.
13. The wireless communication method of claim 12, wherein determining the interfered area of the user equipment comprises:
determining an interfered area of the user equipment according to the position, the beam and the transmission power of the user equipment.
14. The wireless communication method of claim 12, wherein the interfered area is a two-dimensional area or a three-dimensional area,
when the interfered area is a two-dimensional area, the interfered network side equipment comprises ground network side equipment in the interfered area,
when the interfered area is a three-dimensional area, the interfered network side equipment comprises ground network side equipment and non-ground network side equipment in the interfered area.
15. The wireless communication method of claim 12, wherein the resources used by the user equipment comprise: time domain resources used by the user equipment, frequency domain resources used by the user equipment, and beams used by the user equipment.
16. The wireless communication method of claim 12, wherein the level of interference comprises a transmit power of the user equipment.
17. The wireless communication method of claim 12, wherein the level of interference comprises a value of interference experienced by the interfered network-side device.
18. The wireless communication method of claim 12, wherein the wireless communication method further comprises:
receiving feedback information aiming at the interference influence information table from the interfered network side equipment, wherein the feedback information comprises interference values suffered by the interfered network side equipment under the condition that the user equipment uses various resources, or the feedback information comprises the tolerance degree of the interfered network side equipment to the interference under the condition that the user equipment uses various resources.
19. The wireless communication method of claim 18, wherein the wireless communication method further comprises:
determining the tolerance degree of the interfered network side equipment to interference under the condition that the user equipment uses each resource according to the feedback information;
adjusting the resource used by the user equipment under the condition that the interfered network side equipment cannot tolerate the interfered interference; and
and sending the adjusted result to the user equipment.
20. The wireless communication method of claim 19, wherein adjusting the resources used by the user equipment comprises:
muting the user equipment on a specific time domain resource if the interfered network side equipment cannot tolerate the interfered interference when the user equipment uses the specific time domain resource;
performing probabilistic frequency hopping such that a particular frequency domain resource is selected with a low probability in case the interfered network side device cannot tolerate the interfered interference when the user device uses the particular frequency domain resource; and
and in the case that the interfered network side equipment cannot tolerate the interfered interference when the user equipment uses a specific beam, adjusting the beam used by the user equipment to be a beam other than the specific beam.
21. The wireless communication method of any of claims 12-20, wherein the electronic device is a non-terrestrial network-side device serving the user equipment.
22. The wireless communication method of claim 18, wherein the electronic device is a terrestrial network-side device serving the user equipment, and the wireless communication method further comprises:
and sending the feedback information to the non-ground network side equipment which is to provide service for the user equipment.
23. A computer readable storage medium comprising executable computer instructions that when executed by a computer cause the computer to perform a wireless communication method according to any one of claims 12-22.
Although the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, it should be understood that the above-described embodiments are merely illustrative of the present disclosure and do not constitute a limitation of the present disclosure. It will be apparent to those skilled in the art that various modifications and variations can be made in the above-described embodiments without departing from the spirit and scope of the disclosure. Accordingly, the scope of the disclosure is to be defined only by the claims appended hereto, and by their equivalents.

Claims (10)

1. An electronic device comprising processing circuitry configured to:
determining an interfered area of user equipment, wherein the interfered area comprises an area interfered by uplink information sent by the user equipment;
determining interfered network side equipment according to the interfered area of the user equipment;
generating an interference impact information table, wherein the interference impact information table includes interference levels caused to the interfered network side device under the condition that the user equipment uses each resource; and
and sending the interference influence information table to the interfered network side equipment.
2. The electronic device of claim 1, wherein the processing circuit is further configured to:
determining an interfered area of the user equipment according to the position, the beam and the transmission power of the user equipment.
3. The electronic device of claim 1, wherein the interfered area is a two-dimensional area or a three-dimensional area,
when the interfered area is a two-dimensional area, the interfered network side equipment comprises ground network side equipment in the interfered area,
when the interfered area is a three-dimensional area, the interfered network side equipment comprises ground network side equipment and non-ground network side equipment in the interfered area.
4. The electronic device of claim 1, wherein the resources used by the user device include: time domain resources used by the user equipment, frequency domain resources used by the user equipment, and beams used by the user equipment.
5. The electronic device of claim 1, wherein the level of interference comprises a transmit power of the user equipment.
6. The electronic device of claim 1, wherein the level of interference comprises a value of interference experienced by the interfered network-side device.
7. The electronic device of claim 1, wherein the processing circuit is further configured to:
receiving feedback information aiming at the interference influence information table from the interfered network side equipment, wherein the feedback information comprises interference values suffered by the interfered network side equipment under the condition that the user equipment uses various resources, or the feedback information comprises the tolerance degree of the interfered network side equipment to the interference under the condition that the user equipment uses various resources.
8. The electronic device of claim 7, wherein the processing circuit is further configured to:
determining the tolerance degree of the interfered network side equipment to interference under the condition that the user equipment uses each resource according to the feedback information;
adjusting the resource used by the user equipment under the condition that the interfered network side equipment cannot tolerate the interfered interference; and
and sending the adjusted result to the user equipment.
9. The electronic device of claim 8, wherein the processing circuit is further configured to:
muting the user equipment on a specific time domain resource if the interfered network side equipment cannot tolerate the interfered interference when the user equipment uses the specific time domain resource;
performing probabilistic frequency hopping such that a particular frequency domain resource is selected with a low probability in case the interfered network side device cannot tolerate the interfered interference when the user device uses the particular frequency domain resource; and
and in the case that the interfered network side equipment cannot tolerate the interfered interference when the user equipment uses a specific beam, adjusting the beam used by the user equipment to be a beam other than the specific beam.
10. The electronic device of any of claims 1-9, wherein the electronic device is a non-terrestrial network-side device that serves the user device.
CN202010165599.XA 2020-03-11 2020-03-11 Electronic device, wireless communication method, and computer-readable storage medium Pending CN113395778A (en)

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