CN113453366A - Interference elimination method and device, electronic equipment and computer readable storage medium - Google Patents

Interference elimination method and device, electronic equipment and computer readable storage medium Download PDF

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Publication number
CN113453366A
CN113453366A CN202110610911.6A CN202110610911A CN113453366A CN 113453366 A CN113453366 A CN 113453366A CN 202110610911 A CN202110610911 A CN 202110610911A CN 113453366 A CN113453366 A CN 113453366A
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communication
subsystem
communication subsystem
interference
real
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CN113453366B (en
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袁凯
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to PCT/CN2022/092247 priority patent/WO2022252947A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—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
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The embodiment of the application provides an interference elimination method and device, electronic equipment and a computer readable storage medium; the method comprises the following steps: acquiring working information of at least two communication subsystems; under the condition that the interference between the at least two communication subsystems is determined according to the working information, adopting a non-real-time message to control at least one communication subsystem of the at least two communication subsystems so as to adjust the working parameters of the at least one communication subsystem; determining communication quality information of at least two communication subsystems; and controlling at least one communication subsystem to adjust communication parameters thereof by using the real-time message under the condition that the interference between at least two communication subsystems is determined to exist based on the communication quality information. By the method and the device, the communication quality during communication between the communication subsystem and the external equipment can be improved.

Description

Interference elimination method and device, electronic equipment and computer readable storage medium
Technical Field
The present application relates to communications technologies, and in particular, to an interference cancellation method and apparatus, an electronic device, and a computer-readable storage medium.
Background
With the continuous evolution of communication technology, various wireless communication systems are integrated in communication devices such as mobile phones, for example: long Term Evolution (LTE), Wireless Local Area Network (WLAN), Bluetooth (BT), and other Wireless communication systems. When different wireless communication systems operate simultaneously, an In Device Coexistence (IDC) interference problem may occur between wireless communication systems disposed In adjacent frequency bands, thereby affecting communication between the communication systems and external devices.
In the related art, although there is a related art solution to solve the problem of in-device coexistence interference, the achieved effect is not good.
Disclosure of Invention
Embodiments of the present application provide an interference cancellation method and apparatus, an electronic device, and a computer-readable storage medium, which can reasonably and effectively cancel IDC interference between different communication subsystems, and improve communication quality when communication between the communication subsystems and an external device is performed.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the application provides an interference elimination method, which comprises the following steps: acquiring working information of at least two communication subsystems; under the condition that the interference between the at least two communication subsystems is determined according to the working information, adopting a non-real-time message to control at least one communication subsystem of the at least two communication subsystems so as to adjust the working parameters of the at least one communication subsystem; determining communication quality information of the at least two communication subsystems; and under the condition that the interference still exists between the at least two communication subsystems is determined based on the communication quality information, the at least one communication subsystem is controlled by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem.
An embodiment of the present application provides an interference cancellation apparatus, including: the acquisition module is used for acquiring the working information of at least two communication subsystems; the control module is used for controlling at least one communication subsystem of the at least two communication subsystems by adopting a non-real-time message to adjust the working parameters of the at least one communication subsystem under the condition that the interference between the at least two communication subsystems is determined according to the working information; determining communication quality information of the at least two communication subsystems; and the communication subsystem is used for controlling the at least one communication subsystem by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem under the condition that the interference still exists between the at least two communication subsystems based on the communication quality information.
An embodiment of the present application provides an electronic device, including:
a memory for storing executable instructions;
at least two communication subsystems for data communication with external devices;
the processor is used for acquiring the working information of the at least two communication subsystems when the executable instructions stored in the memory are executed;
under the condition that the interference between the at least two communication subsystems is determined according to the working information, adopting a non-real-time message to control at least one communication subsystem of the at least two communication subsystems so as to adjust the working parameters of the at least one communication subsystem;
determining communication quality information of the at least two communication subsystems;
and under the condition that the interference still exists between the at least two communication subsystems is determined based on the communication quality information, the at least one communication subsystem is controlled by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem.
An embodiment of the present application provides a computer-readable storage medium, which stores executable instructions for causing a processor to implement an interference cancellation method provided in an embodiment of the present application when the processor executes the executable instructions.
The embodiment of the application has the following beneficial effects: under the condition that interference exists between at least two communication subsystems, a non-real-time message is adopted to control at least one communication subsystem of the at least two communication subsystems to adjust working parameters of the communication subsystem to eliminate the non-real-time interference, and after the non-real-time interference is eliminated, communication quality information of the at least two communication subsystems is obtained; under the condition that the communication quality information determines that the at least two communication subsystems have interference, the real-time information is adopted to continuously control the at least one communication subsystem to adjust the communication parameters of the communication subsystem so as to further eliminate the real-time interference; therefore, the interference is eliminated by combining the two interference elimination modes, the interference between the communication subsystems can be reasonably and effectively reduced, and the communication quality during the communication between the communication subsystems and the external equipment is improved.
Drawings
Fig. 1 is a diagram of a plurality of communication subsystems in an exemplary UE provided by an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating interference generated between an exemplary Wi-Fi subsystem and an NR/LTE subsystem according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of frequency bands in which a plurality of communication subsystems in a UE operate according to an exemplary related art provided by an embodiment of the present application;
fig. 4 is a first schematic diagram for controlling the operating times of a Wi-Fi subsystem and an NR/LTE subsystem in a UE according to an exemplary fixed time-sharing operating mechanism provided in an embodiment of the present application;
fig. 5 is a schematic diagram illustrating an interference principle of a Wi-Fi subsystem on an NR/LTE subsystem after an exemplary Wi-Fi subsystem employs a high-performance filter according to an embodiment of the present application;
fig. 6 is a second schematic diagram for controlling the operating times of the Wi-Fi subsystem and the NR/LTE subsystem in the UE by using a fixed time-sharing operating mechanism according to an exemplary embodiment of the present application;
fig. 7 is an alternative flowchart of an interference cancellation method according to an embodiment of the present application;
fig. 8 is an alternative flowchart of an interference cancellation method according to an embodiment of the present application;
fig. 9 is an alternative flowchart of an interference cancellation method according to an embodiment of the present application;
fig. 10 is an alternative flowchart of an interference cancellation method according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of an electronic device in an actual application scenario according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of an interference cancellation apparatus according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the attached drawings, the described embodiments should not be considered as limiting the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
In the following description, references to the terms "first \ second \ third" are only to distinguish similar objects and do not denote a particular order, but rather the terms "first \ second \ third" are used to interchange specific orders or sequences, where appropriate, so as to enable the embodiments of the application described herein to be practiced in other than the order shown or described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the application.
Before further detailed description of the embodiments of the present application, terms and expressions referred to in the embodiments of the present application will be described, and the terms and expressions referred to in the embodiments of the present application will be used for the following explanation.
1) IDC interference: due to the increasing demand for data to connect to multiple wireless networks anytime and anywhere, modern devices are designed to support different Radio Access Technologies (RATs). These devices, such as mobile phones, tablets, and various other communication modules, are capable of supporting different cellular and non-cellular communication standards simultaneously; due to the small size of these devices, the transceiver modules of different wireless technologies are located close to each other. Thus, when these collocated radio transceivers operate simultaneously in the same or adjacent frequency bands, potential mutual interference is generated, which is referred to as in-device coexistence interference; IDC interference affects receiver sensitivity, thus degrading the quality of the desired signal or causing data loss;
2) NR: the cellular mobile terminal can be named as 5G, is a global 5G standard designed based on a New Radio (NR) of OFDM, and is also a very important cellular mobile technology foundation of the next generation;
3) LTE: referred to as 4G, Long Term Evolution (LTE), is a Long Term Evolution of The Universal Mobile Telecommunications System (UMTS) technology standard established by The 3rd Generation Partnership Project (3 GPP) organization;
4) WLAN: wireless Local Area Network (WLAN); the method is characterized in that computer equipment is interconnected by applying a wireless communication technology to form a network system which can communicate with each other and realize resource sharing; the wireless local area network is essentially characterized in that a computer is not connected with a network by using a communication cable any more, but is connected in a wireless mode, so that the construction of the network and the movement of a terminal are more flexible;
5) NFC: near Field Communication (NFC); the mobile payment system is an emerging technology, equipment (such as mobile phones) using an NFC technology can exchange data under the condition that the equipment is close to each other, is integrated and evolved from a non-contact Radio Frequency Identification (RFID) and interconnection and intercommunication technology, integrates functions of an induction type card reader, an induction type card and point-to-point communication on a single chip, and realizes applications such as mobile payment, electronic ticketing, entrance guard, mobile identity identification and anti-counterfeiting by using a mobile terminal;
6) GNSS: global Navigation Satellite System (GNSS); the space-based radio navigation positioning system can provide all-weather 3-dimensional coordinates and speed and time information for users at any place on the earth surface or in near-earth space;
7) LAA: Licensed-Assisted Access (LAA); the technology of the LTE network for the unlicensed frequency band;
8) BT: bluetooth (BT): is a network protocol program used for file sharing in a peer-to-peer network;
9) ZigBee: the wireless communication technology is a novel wireless communication technology and is suitable for a series of electronic component devices with short transmission range and low data transmission rate;
10) ISM band: is the Industrial, Scientific and Medical (ISM) frequency band; wherein, 2.4GHz is the common ISM frequency band of each country; wireless local area networks (IEEE 802.11b/IEEE 802.11g), Bluetooth, ZigBee and the like can work on a 2.4GHz frequency band.
At present, with the continuous evolution of communication technology, various wireless communication systems are integrated in communication devices such as mobile phones, for example: a new air interface communication subsystem (NR or 5G), a long term evolution technology subsystem (LTE or 4G), a wireless local area network subsystem (Wi-Fi or WLAN), a Bluetooth subsystem (BT), a near field communication subsystem (NFC), a Global Navigation Satellite Subsystem (GNSS), an authorized spectrum auxiliary access subsystem (LAA) and a Zigbee communication subsystem (Zigbee). IDC interference problems within a communication device can occur between wireless communication subsystems deployed in adjacent frequency bands when the different wireless communication subsystems are operating simultaneously. Illustratively, as shown in FIG. 1: user Equipment (UE) integrates NR, LTE, Wi-Fi, BT and GNSS communication subsystems. When the Wi-Fi subsystem and the NR subsystem work simultaneously, if working frequency points or frequency bands of the Wi-Fi subsystem and the NR/LTE subsystem are close, the transmission of the Wi-Fi will cause interference on the reception of the NR/LTE, otherwise, the transmission of the NR/LTE will also cause interference on the reception of the Wi-Fi; for example, in FIG. 1, IDC interference exists between Wi-Fi and NR/LTE, and IDC interference exists between GNSS and NR/LTE. When IDC interference exists between Wi-Fi and NR/LTE in fig. 1, as shown in fig. 2, after a transmission signal of Wi-Fi passes through a transmission filter, a spurious harmonic signal with higher power enters an NR/LTE reception signal at an adjacent frequency point, which may cause demodulation failure of the NR/LTE reception signal, resulting in that the NR/LTE cannot normally operate.
Fig. 3 is a diagram illustrating frequency bands in which various communication subsystems operate in the related art; as shown in fig. 3, 2.4G Wi-Fi and BT operate in ISM band (2400-2483.5 MHz), and are adjacent to NR/LTE Time-division duplex (TDD) band 40, Frequency-division duplex (FDD) band 7, TDD band 38, and TDD band 41. When different communication technologies of adjacent frequency bands work simultaneously, IDC interference is inevitably generated. With respect to fig. 1-3, in-device coexistence interference may be present in a user equipment in at least the following scenarios:
(1) the NR/LTE transmission signal on the TDD frequency band 40 causes IDC interference to the Wi-Fi or BT reception signal in the ISM frequency band;
(2) the NR/LTE transmission signal on the TDD frequency band 41 causes IDC interference to the Wi-Fi or BT reception signal in the ISM frequency band;
(3) the NR/LTE transmission signal on the TDD frequency band 38 causes IDC interference to the Wi-Fi or BT reception signal in the ISM frequency band;
(4) IDC interference is caused by a transmitting signal of NR/LTE on an FDD frequency band 7 to a receiving signal of Wi-Fi or BT in an ISM frequency band;
(5) IDC interference is caused by a Wi-Fi or BT transmitting signal in an ISM frequency band on an NR/LTE receiving signal in a TDD frequency band 40;
(6) IDC interference caused by Wi-Fi or BT transmission signals in ISM band on NR/LTE reception signals in TDD band 41
(7) IDC interference is caused by a Wi-Fi or BT transmission signal in an ISM frequency band on an NR/LTE reception signal on a TDD frequency band 38;
in addition, IDC interference also exists between the operating frequency band of 5GHz Wi-Fi (5.15 GHz-5.35 GHz, 5.725 GHz-5.825 GHz) and the frequency band n79 of NR (4.5 GHz-5 GHz), IDC interference also exists between the operating frequency band of GNSS (1.571 GHz-1.58 GHz, 1.598 GHz-1.606 GHz) and the frequency band 34 and the frequency band 39 of LTE, and the like, which are not listed herein.
For the IDC interference problem in the user equipment, two methods are adopted in the related art to solve the problem:
1. a high-performance filter is adopted; the transmitting end of the communication subsystem adopts a high-performance transmitting filter to reduce the stray harmonic power outside the transmitting bandwidth, and the receiving end adopts a high-performance receiving filter to further reduce the interference signal power inside the receiving bandwidth;
2. different wireless communication technologies adopt a fixed time-sharing working mechanism; for example, as shown in fig. 4, when IDC interference exists, Wi-Fi normally receives and transmits from time T1 to time T2, and NR stops working or stops transmitting to avoid IDC interference to Wi-Fi; from time T2 to time T3, the NR receives and transmits normally, and the Wi-Fi stops working or transmitting to avoid IDC interference on the NR; by analogy, Wi-Fi and NR operate at different times, thereby avoiding IDC interference with each other.
In the method 1, although the high-performance filter can reduce IDC interference, the IDC interference cancellation effect is limited, and particularly when the operating frequency points of different communication systems are close, the filter cannot provide enough suppression for IDC interference. For example, as shown in fig. 5, a high-performance transmit filter is used in a Wi-Fi transmitting end to reduce spurious harmonic power of a Wi-Fi transmitting signal, but some spurious harmonics still fall into an NR receiving signal, which may still cause some interference to NR receiving. That is, the method 1 has a poor effect of removing IDC interference.
For the method 2, although the communication subsystem does not have IDC interference in its respective working period and can work normally, in practical application, the UE needs to maintain real-time connection communication with the central office according to a communication technology protocol, and cannot receive or transmit at a fixed time completely and autonomously. For example, for LTE/NR communication technology, the scheduling of the UE is controlled by the base station, and if the reception or transmission of the LTE/NR is stopped within a period of time, the scheduling information within the period of time is lost, so that the performance of the LTE/NR is reduced, and the problem of network loss of the UE is likely to be caused. For example, as shown in FIG. 6: at time T2 to T3, the UE is in the NR receiving/transmitting period, and Wi-Fi cannot work normally; on the contrary, at the moment Tn to Tn +1, the UE is in the Wi-Fi receiving/transmitting time period, and the NR cannot work normally. That is, the method 2 cannot balance the IDC interference cancellation of the communication subsystem with the communication efficiency of the communication subsystem, and cannot reasonably cancel the IDC interference, so that the achieved effect is not good.
As can be seen from the above, the technical solutions for solving the IDC interference between the communication subsystems in the related art cannot reasonably and effectively eliminate the IDC interference between different communication subsystems.
Embodiments of the present application provide an interference cancellation method and apparatus, an electronic device, and a computer-readable storage medium, which can reasonably and effectively cancel interference between different communication subsystems, thereby improving communication quality when communication between the communication subsystems and an external device is performed.
The electronic device provided by the embodiment of the present application may be implemented as various types of user terminals, such as a notebook computer, a tablet computer, a desktop computer, a set-top box, a mobile device (e.g., a mobile phone, a portable music player, a personal digital assistant, a dedicated messaging device, and a portable game device), but is not limited thereto. The interference cancellation method provided by the embodiment of the present application will be described below.
Referring to fig. 7, fig. 7 is an alternative flowchart of an interference cancellation method provided in the embodiment of the present application, which will be described with reference to the steps shown in fig. 7.
S101, acquiring working information of at least two communication subsystems.
And S102, under the condition that the interference exists between at least two communication subsystems in the plurality of communication subsystems according to the working information, adopting a non-real-time message to control at least one communication subsystem in the at least two communication subsystems so as to adjust the working parameters of the at least one communication subsystem.
S103, determining the communication quality information of at least two communication subsystems.
In an embodiment of the present application, the working information may include a working frequency point, a communication power, and a data state (e.g., an idle state or a connected state, etc.) of each communication subsystem. Illustratively, when the at least two communication subsystems are the first communication subsystem and the second communication subsystem, the operation information of the at least two communication subsystems includes: the communication method comprises the steps of obtaining a first working frequency point of a first communication subsystem, a first communication power of the first communication subsystem and a data state of the first communication subsystem, and obtaining a second working frequency point of a second communication subsystem, a second communication power of the second communication subsystem and a data state of the second communication subsystem. Here, the data state of each communication subsystem may include a first data state or a second data state, where the first data state indicates that the communication subsystem is performing uplink transmission, and the second data state indicates that the communication subsystem is performing downlink reception; for example, the first data state may be an idle state and the second data state may be a connected state.
In the embodiment of the present application, if the operation information includes the operation parameter, when the at least two communication subsystems are exemplarily a first communication subsystem and a second communication subsystem, the operation information of the at least two communication subsystems includes a first operation parameter of the first communication subsystem and a second operation parameter of the second communication subsystem. In some embodiments of the present application, the working parameters may include working frequency points and communication power, and the first working parameter of the first communication subsystem includes: a first working frequency point and a first communication power; the second operating parameters of the second communication subsystem include: the second working frequency point and the second communication power. In other embodiments of the present application, the operating parameter may include an operating frequency point, and the first operating parameter of the first communication subsystem includes: a first working frequency point; the second operating parameters of the second communication subsystem include: and the second working frequency point. Two different cases of the content contained in the operating parameters will be described later in connection with different embodiments.
In the embodiment of the application, the electronic device can receive the working frequency point, the communication power and the data state sent by at least two communication subsystems of the electronic device through a controller of the electronic device so as to obtain the working frequency point, the communication power and the data state of at least two communication subsystems of the electronic device, and determine whether IDC interference exists between the at least two communication subsystems according to the working frequency point, the communication power and the data state of each communication subsystem; under the condition that IDC interference exists between the at least two communication subsystems, the non-real-time message is sent to at least one communication subsystem of the at least two communication subsystems to control the at least one communication subsystem to adjust the working frequency point or the communication power of the at least one communication subsystem, so that IDC interference elimination is realized; after controlling the at least one communication subsystem to adjust its working frequency point or communication power, the electronic device determines, through the at least two communication subsystems, communication quality information, such as communication quality parameters or communication states, of each communication subsystem in the at least two communication subsystems, respectively, and learns whether IDC interference still exists between the at least two communication subsystems after IDC interference cancellation is performed according to the communication quality information of the at least two communication subsystems, where the communication quality parameters may include at least one of a bit error rate and a signal-to-noise ratio; the communication state indicates whether the corresponding communication subsystem is in a normal communication state, for example, the communication state of the NR subsystem indicates whether the NR subsystem is in a normal communication state.
In some embodiments of the present application, the at least two communication subsystems may be any two communication subsystems of a BT subsystem, an LTE subsystem, an NR subsystem, a WLAN subsystem (Wi-Fi subsystem), an NFC subsystem, a GNSS subsystem, an LAA subsystem, and a Zigbee subsystem. It should be noted that the above list is only an exemplary illustration, and the embodiment of the present application does not limit the kind of the at least two communication subsystems.
It should be noted that, in the embodiment of the present application, the communication subsystem that the electronic device controls to adjust its operating parameter is a communication subsystem in a transmitting state of at least two communication subsystems, and the other communication subsystem of the at least two communication subsystems is a communication subsystem in a receiving state. Thus, by controlling the communication subsystem which transmits data outwards to adjust the working parameters of the communication subsystem, the interference of the signals transmitted by the communication subsystem which transmits data outwards to other communication subsystems in a receiving state can be reduced, and the IDC interference between the at least two communication subsystems can be reduced.
And S104, on the basis of the communication quality information, under the condition that the interference still exists between the at least two communication subsystems, adopting the real-time message to control the at least one communication subsystem so as to adjust the communication parameters of the communication subsystem.
In an embodiment of the application, the communication parameter represents the time of the uplink transmission, and the electronic device, in a case that it is determined that IDC interference still exists between the at least two communication subsystems, continues to control the at least one of the at least two communication subsystems to adjust the time of the uplink transmission of the communication subsystem itself, so as to continue to perform cancellation of IDC interference by continuing to control the at least one communication subsystem to adjust the time of the uplink transmission of the communication subsystem itself, thereby further cancellation of IDC interference is achieved. It should be noted that, in the embodiment of the present application, the communication subsystem that the electronic device controls to adjust the communication parameter is a communication subsystem in a transmitting state of the at least two communication subsystems.
In the embodiment of the application, under the condition that IDC interference exists between at least two communication subsystems, a non-real-time message is adopted to control at least one communication subsystem of the at least two communication subsystems to adjust working parameters of the communication subsystem so as to eliminate the non-real-time interference, and after the non-real-time interference is eliminated, the respective communication quality information of the at least two communication subsystems is obtained; under the condition that IDC interference still exists between the at least two communication subsystems according to the communication quality information, the real-time information is adopted to continuously control the at least one communication subsystem to adjust the communication parameters of the at least one communication subsystem so as to further eliminate the real-time interference; therefore, the IDC interference is eliminated by combining the two interference elimination modes, the IDC interference between the communication subsystems can be reasonably and effectively reduced, and the communication quality during communication between the communication subsystems and external equipment is improved.
It should be noted that, in the embodiment of the present application, when the IDC is not eliminated in real time, the communication subsystems send messages to the non-real time interface of the controller of the electronic device through the non-real time interface of the communication subsystems, so as to forward the messages to other communication subsystems through the non-real time interface of the controller; when the IDC is eliminated in real time, the communication subsystems are communicated directly through the real-time interfaces of the communication subsystems, and message forwarding is not needed through a non-real-time interface of a controller of the electronic equipment; in addition, compared with real-time IDC, non-real-time IDC has less influence on the communication effect of the communication subsystem, and compared with non-real-time IDC, real-time IDC has higher interference elimination efficiency.
In some embodiments of the present application, referring to fig. 8, fig. 8 is an optional flowchart of an interference cancellation method provided in the embodiments of the present application, and based on fig. 8, S102 in fig. 7 may be implemented by S201-S202, which will be described with reference to the steps shown in fig. 8.
S201, under the condition that the second communication subsystem generates interference on the first communication subsystem according to the first working parameter and the second working parameter, carrying the second working parameter in a first non-real-time message, and sending the first non-real-time message to the first communication subsystem; the at least two communication subsystems include at least: a first communication subsystem and a second communication subsystem; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the work information includes: a second operating parameter of the second communication subsystem; a first operating parameter of the first communication subsystem; the non-real-time messages include: a first non-real time message and a second non-real time message.
In the following description, the first communication subsystem is an NR subsystem, and the second communication subsystem is a Wi-Fi subsystem, where the operating parameter of the first communication subsystem is referred to as a first operating parameter, and the operating parameter of the second communication subsystem is referred to as a second operating parameter. It should be noted that the first communication subsystem may also be a Wi-Fi subsystem, and correspondingly, the second communication subsystem may also be an NR subsystem, or the first communication subsystem and the second communication subsystem may also be other communication subsystems, which is not limited in this embodiment of the present application.
In some embodiments of the present application, the second operating parameter includes a second operating frequency point and a second communication power. Under the condition that the electronic equipment determines that the Wi-Fi subsystem generates IDC interference on the NR subsystem, the electronic equipment can select the working frequency point and the communication power of the Wi-Fi subsystem from the previously acquired working information of the Wi-Fi subsystem, including the working frequency point, the communication power, the data state and the like, so as to obtain a second working frequency point and a second communication power, carry the second working frequency point and the second communication power in the first non-real-time message, and send the first non-real-time message to the NR subsystem.
It should be noted that, the electronic device may send the first non-real-time message to the NR subsystem through its own control layer. In some embodiments of the present application, a control layer of the electronic device is a controller, the controller is located in an application layer and is provided with a non-real-time interface, both a protocol layer or a platform layer of the at least two communication subsystems are provided with a non-real-time interface, and the electronic device implements information interaction with the at least two communication subsystems through the non-real-time interface of the control layer and the non-real-time interfaces in the protocol layer or the platform layer of the at least two communication subsystems. It should be noted that the electronic device carries the second working frequency point and the second communication power in the first non-real-time message through the controller, and sends the first non-real-time message to the non-real-time interface of the NR subsystem through the non-real-time interface of the controller.
In other embodiments of the present application, the first non-real-time message comprises: a first sub-message and a second sub-message; in the event that the electronic device determines through the controller that the Wi-Fi subsystem is causing interference to the NR subsystem, the control message can be sent to the non-real-time interface of the Wi-Fi subsystem through the controller, the Wi-Fi subsystem is controlled to inform the second working frequency point and the second communication power, the Wi-Fi subsystem carries the second working frequency point and the second communication power of the Wi-Fi subsystem in the first sub-message according to the control message, sending the information to a controller, analyzing a second working frequency point and a second communication power of the Wi-Fi subsystem from the first sub-message by the controller, and carrying the analyzed second working frequency point and the second communication power in a second sub-message, and sending the second sub-message to a non-real-time interface of the NR subsystem, so as to realize the sending of the second working frequency point and the second communication power of the Wi-Fi subsystem to the NR subsystem.
S202, determining the safe communication power of a second communication subsystem through the first communication subsystem based on a second working parameter and a downlink receiving parameter of the first communication subsystem, carrying the safe communication power in a second non-real-time message, and sending the second non-real-time message to the second communication subsystem to control the second communication subsystem, and adjusting the second working parameter based on the safe communication power; the safe communication power is communication power used by the second communication subsystem for normal uplink transmission and used for enabling the first communication subsystem to perform normal downlink reception.
Under the condition that the electronic equipment receives the second working frequency point and the second communication power of the Wi-Fi subsystem through the NR subsystem, the electronic equipment can determine that the Wi-Fi subsystem is used for normal uplink transmission according to the second working frequency point and the second communication power of the Wi-Fi subsystem and the downlink receiving parameters of the NR subsystem through the NR subsystem, does not influence the communication power of the NR subsystem for normal downlink receiving, and takes the communication power as the safe communication power of the Wi-Fi subsystem. In other words, the Wi-Fi subsystem can normally communicate with the first external device using the secure communication power without affecting the normal communication between the NR subsystem and the second external device.
In the embodiment of the application, the electronic device sends control information to the NR subsystem through a non-real time interface of the controller to control the NR subsystem to determine the safe communication power of the Wi-Fi subsystem according to a second working frequency point and a second communication power of the Wi-Fi subsystem and a downlink receiving parameter of the NR subsystem, after receiving the control information through the non-real time interface of the NR subsystem, the NR subsystem determines the safe communication power of the Wi-Fi subsystem according to the second working frequency point and the second communication power and the downlink receiving parameter of the NR subsystem, carries the safe communication power in a non-real time message, sends the non-real time message to the controller through the non-real time interface of the NR subsystem, and forwards the received non-real time message carrying the safe communication power to the non-real time interface of the Wi-Fi subsystem, thereby enabling the transmission of safe communication power to the Wi-Fi subsystem.
In some embodiments of the present application, the downlink receiving parameter of the NR subsystem may be the number of antennas used by the NR subsystem when performing communication, for example, 2 or 4 antennas, and a preset working parameter configuration table is stored in the NR subsystem, where the working parameter configuration table records a plurality of available working frequency points of the Wi-Fi subsystem, different communication powers corresponding to each of the available working frequency points, and an interference degree of each of the communication powers on the NR subsystem. The NR subsystem can select one communication power as the safe communication power of the Wi-Fi subsystem according to the number of antennas used when the NR subsystem carries out communication, the working frequency point of the Wi-Fi subsystem and the interference degree of different communication powers on the NR subsystem under the working frequency point of the Wi-Fi subsystem; for example, when the NR subsystem employs 2 antennas for communication, the communication power with the minimum interference to itself may be selected as the secure communication power of the Wi-Fi subsystem; when the NR subsystem uses 4 antennas for communication, a communication power with a small interference degree to itself may be selected as the secure communication power of the Wi-Fi subsystem.
In some embodiments, after S202 above, S203 may be further included:
s203, adjusting a second working parameter of the second communication subsystem based on the safe communication power through the second communication subsystem, thereby realizing the non-real-time interference elimination process.
In the embodiment of the application, when the Wi-Fi subsystem of the electronic device receives the secure communication power through the non-real-time interface of the electronic device, the electronic device can judge whether the communication power currently used by the Wi-Fi subsystem is higher than the secure communication power through the Wi-Fi subsystem, and directly adjust the communication power of the electronic device to the secure communication power or adjust the communication power of the electronic device to be lower than the secure communication power under the condition that the current communication power of the electronic device is higher than the secure communication power, so that the IDC non-real-time interference elimination process is realized.
In other embodiments of the present application, referring to fig. 9, fig. 9 is an optional flowchart of an interference cancellation method provided in the embodiments of the present application, and S102 in fig. 7 may also be implemented through S301 to S302, which will be described with reference to the steps shown in fig. 9.
S301, under the condition that the second communication subsystem generates interference on the first communication subsystem according to the first working parameter and the second working parameter, carrying the first working parameter in a third non-real-time message, and sending the third non-real-time message to the second communication subsystem; the at least two communication subsystems include at least: a first communication subsystem and a second communication subsystem; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the work information includes: a first operating parameter of the first communication subsystem; a second operating parameter of the second communication subsystem; the non-real-time messages include: a third non-real time message.
In some embodiments of the present application, the first operating parameter comprises a first operating frequency point and the second operating parameter comprises a second operating frequency point. Under the condition that the electronic equipment determines that the Wi-Fi subsystem generates interference on the NR subsystem through the controller, the controller can select the working frequency point of the NR subsystem from the previously acquired working information of the NR subsystem, including the working frequency point, the communication power, the data state and the like, so as to obtain a first working frequency point, carry the first working frequency point in a third non-real-time message, and send the third non-real-time message to a non-real-time interface of the Wi-Fi subsystem through the controller, so that the first working frequency point is sent to the Wi-Fi subsystem.
In other embodiments of the present application, the third non-real-time message comprises: a third sub-message and a fourth sub-message; under the condition that the electronic equipment determines that the Wi-Fi subsystem generates interference on the NR subsystem through the controller, the controller can send a control message to a non-real-time interface of the NR subsystem to control the NR subsystem to inform the first working frequency point, the NR subsystem carries the first working frequency point of the NR subsystem in a third sub-message and sends the third sub-message to the controller according to the control message, and the controller analyzes the first working frequency point from the third sub-message, carries the first working frequency point in a fourth sub-message and sends the fourth working frequency point to the non-real-time interface of the Wi-Fi subsystem, so that the first working frequency point of the NR subsystem is sent to the Wi-Fi subsystem.
S302, adjusting a second working parameter of the second communication subsystem through the second communication subsystem based on the first working parameter so as to eliminate interference.
After the Wi-Fi subsystem of the electronic equipment acquires the first working frequency point of the NR subsystem through the non-real-time interface of the Wi-Fi subsystem, the second working frequency point of the Wi-Fi subsystem can be adjusted according to the first working frequency point, so that the non-real-time IDC interference elimination process is realized.
In the embodiment of the application, the electronic device may determine, through the Wi-Fi subsystem, whether a difference between a second working frequency point of the electronic device and a first working frequency point of the NR subsystem is greater than or equal to a preset threshold value, so as to determine whether the second working frequency point is close to the first working frequency point of the NR subsystem, and adjust the second working frequency point of the Wi-Fi subsystem to the first working frequency point far away from the NR subsystem when it is determined that the second working frequency point is close to the first working frequency point of the NR subsystem, so as to implement a non-real-time IDC interference cancellation process.
In some embodiments of the application, the working parameter configuration table may also be stored in advance in the Wi-Fi subsystem, and then the electronic device may select one working frequency point, of which a difference value with the first working frequency point is greater than a preset threshold value, from a plurality of available working frequency points of the Wi-Fi subsystem recorded in the working parameter configuration table under the condition that it is determined by the Wi-Fi subsystem that the second working frequency point is close to the first working frequency point of the NR subsystem, and adjust the second working frequency point of the Wi-Fi subsystem to the working frequency point, so as to implement the non-real-time IDC interference cancellation process.
It should be noted that the preset threshold is used to determine whether the target operating frequency point is close to the first operating frequency point, and a numerical value of the preset threshold may be set according to actual needs, which is not limited in this embodiment of the present application.
In some embodiments of the present application, S302 may also be implemented through S3021 to S3023:
s3021, determining whether a target working frequency point exists in the second communication subsystem according to the first working frequency point through the second communication subsystem; when the second communication subsystem acts on the target working frequency point, no interference is generated on the first communication subsystem.
In some embodiments of the present application, the electronic device may determine, through the Wi-Fi subsystem, whether the Wi-Fi subsystem can operate at a target operating frequency that does not generate interference with the NR subsystem, based on the first operating frequency of the NR subsystem.
In some embodiments, the working parameter configuration table may be stored in advance in the Wi-Fi subsystem, and the electronic device may calculate, through the Wi-Fi subsystem, a difference between each available working frequency point of the Wi-Fi subsystem and a first working frequency point of the NR subsystem, which are recorded in the working parameter configuration table, and determine whether each obtained difference is greater than a preset threshold. Under the condition that each obtained difference value is smaller than a preset threshold value, determining that the Wi-Fi subsystem does not have a target working frequency point which does not generate interference on the NR subsystem, namely that the Wi-Fi subsystem cannot work at the target working frequency point which does not generate interference on the NR subsystem; and under the condition that one difference value is larger than a preset threshold value, determining that a target working frequency point which does not generate interference on the NR subsystem exists in the Wi-Fi subsystem, namely that the Wi-Fi subsystem can work at the target working frequency point which does not generate interference on the NR subsystem. For example, the working parameter configuration table may be stored in advance in the Wi-Fi subsystem, and three available working frequency points a1, a2, and A3 of the Wi-Fi subsystem are recorded in the working parameter configuration table, and the electronic device may calculate differences between the working frequency points a1, a2, and A3 and the first working frequency point B of the NR subsystem through the Wi-Fi subsystem, so as to correspondingly obtain a difference C1 between a1 and B, a difference C2 between a2 and B, and a difference C3 between A3 and B, and respectively determine whether each difference is greater than a preset threshold. Under the condition that C1, C2 and C3 are all smaller than a preset threshold value, determining that the Wi-Fi subsystem does not have a target working frequency point which does not generate interference on the NR subsystem; and under the condition that any one of C1, C2 and C3 is larger than a preset threshold value, determining that the Wi-Fi subsystem has a target working frequency point which does not generate interference on the NR subsystem.
And S3022, under the condition that the target working frequency point is determined, adjusting the second working frequency point to the target working frequency point, thereby realizing the non-real-time interference elimination process.
And when the electronic equipment determines that the Wi-Fi subsystem can work at the target working frequency point which does not generate interference on the NR subsystem through the Wi-Fi subsystem, the electronic equipment can adjust the second working frequency point of the Wi-Fi subsystem to the working frequency point, so that the non-real-time interference elimination process is realized.
S3023, under the condition that the target working frequency point is not determined, adopting safe communication power to realize a non-real-time interference elimination process; the safe communication power is a communication power used by the second communication subsystem for normal uplink transmission and used for enabling the first communication subsystem to perform normal downlink reception.
Under the condition that the electronic equipment determines that the Wi-Fi subsystem cannot work at a target working frequency point which does not generate interference on the NR subsystem through the Wi-Fi subsystem, the communication power of the Wi-Fi subsystem can be directly adjusted to be safe communication power, or the communication power of the Wi-Fi subsystem is adjusted to be lower than the safe communication power, so that the non-real-time interference elimination process is realized.
In some embodiments of the present application, in the above S201 or S301, determining that the second communication subsystem interferes with the first communication subsystem according to the first operating parameter and the second operating parameter may be implemented by S11:
s11, when it is determined that the difference between the first working frequency point and the second working frequency point is smaller than a preset difference, and when the first communication subsystem performs downlink receiving and the second communication subsystem performs uplink sending, it is determined that the second communication subsystem generates interference on the first communication subsystem; the first operating parameter includes: a first working frequency point; the second operating parameters include: and the second working frequency point.
In the embodiment of the application, the electronic device may determine a difference value between the first working frequency point and the second working frequency point according to the first working frequency point in the first working information of the first communication subsystem and the second working frequency point in the second working information of the second communication subsystem; according to the data state of the first communication subsystem and the data state of the second communication subsystem in the working information, whether the first communication subsystem and the second communication subsystem work simultaneously or not can be determined, and which communication subsystem is used for uplink transmission or downlink reception can be determined.
Here, the preset difference may be set according to an actual situation, for example, may be set according to a simulation result, and may also be set with reference to a theoretical value, and the like, which is not limited in this application.
In some embodiments of the present application, S11 may be implemented by: when the difference value between the first working frequency point and the second working frequency point is smaller than the preset difference value and the second communication subsystem is in the first data state and the first communication subsystem is in the second data state, determining that the second communication subsystem generates interference on the first communication subsystem; the first data state represents that the second communication subsystem is carrying out uplink transmission, and the second data state represents that the first communication subsystem is carrying out downlink receiving.
In the embodiment of the present application, for an LTE subsystem or an NR subsystem, a first data state is an idle state, and a second data state is a connected state; for other subsystems such as a Wi-Fi subsystem or a BT subsystem and the like, the first data state representation is transmitted in an uplink mode, and the second data state representation is received in a downlink mode.
For example, for the NR subsystem (or LET subsystem), when the NR subsystem is in an idle state, the NR subsystem is in a working state, and there is no uplink transmission, and only downlink reception; when the NR subsystem is in a connected state, the NR subsystem is in a working state, and there is both uplink transmission and downlink reception.
In the embodiment of the application, when the first and second communication subsystems are an LTE subsystem and an NR subsystem, and the first data state of the LTE subsystem is an idle state, and the second data state of the NR subsystem is a connected state, IDC interference exists between the LTE subsystem and the NR subsystem. When the first communication subsystem and the second communication subsystem are a Wi-Fi subsystem and a BT subsystem, the second data state of the Wi-Fi subsystem indicates that the Wi-Fi subsystem carries out downlink receiving, and the first data state of the BT subsystem indicates that the BT subsystem carries out uplink sending, IDC interference exists between the Wi-Fi subsystem and the BT subsystem. The principle is the same for other communication subsystems, and the details are not repeated here.
Here, for the case where IDC interference exists between the first and second communication subsystems, for example, when the first and second communication subsystems are a Wi-Fi subsystem and an LTE subsystem, for example, the working frequency bands of the Wi-Fi subsystem and the LTE subsystem are adjacent to each other, and the Wi-Fi subsystem is used for browsing a network, watching a movie, and other data services, and meanwhile, when the LTE subsystem is used for monitoring a possible incoming call, the Wi-Fi subsystem may interfere with the reception of incoming call information by the LTE subsystem, so that the LTE subsystem cannot receive the incoming call information. And, for example, in the case that the first and second communication subsystems are a BT subsystem and an NR subsystem, for example, the operating frequency bands of the BT subsystem and the NR subsystem are adjacent, and the BT subsystem is used for connecting a bluetooth headset or bluetooth sound equipment, and meanwhile, in the case that the NR subsystem is used for playing music on demand on internet, the BT subsystem and the NR subsystem interfere with each other, resulting in discontinuous music playing.
In some embodiments of the present application, determining that interference still exists between at least two communication subsystems based on the communication quality information in S104 of fig. 7 may be implemented by S401:
s401, determining that interference still exists between at least two communication subsystems under the condition that the communication quality parameter of at least any one communication subsystem in the at least two communication subsystems does not meet a preset condition based on the communication quality parameter of each communication subsystem in the at least two communication subsystems; the communication quality information includes: a communication quality parameter.
The communication quality parameter may be at least one of a bit error rate and a signal-to-noise ratio, the electronic device may be controlled by the controller, at least one of a bit error rate and a signal-to-noise ratio of the Wi-Fi subsystem and the NR subsystem may be obtained separately, to pass at least one of a bit error rate and a signal-to-noise ratio of each communication subsystem in the Wi-Fi subsystem and the NR subsystem, and corresponding communication threshold value to determine whether the Wi-Fi subsystem and the NR subsystem are in normal communication state, so that in a state where the Wi-Fi subsystem or the NR subsystem is not in normal communication, or, under the condition that the Wi-Fi subsystem and the NR subsystem are not in the normal communication state, determines that IDC interference still exists between the Wi-Fi subsystem and the NR subsystem, therefore, the Wi-Fi subsystem can be continuously controlled to adjust the communication parameters of the Wi-Fi subsystem by adopting the real-time message.
For example, in the case that the communication quality parameter includes a bit error rate, the electronic device may compare the bit error rate of each communication subsystem with a preset bit error rate threshold, and determine that IDC interference still exists between the Wi-Fi subsystem and the NR subsystem in the case that the bit error rate of one communication subsystem is greater than or equal to the bit error rate threshold. And, for example, in the case that the communication quality parameters include a bit error rate and a signal-to-noise ratio, the electronic device may compare the bit error rate of each communication subsystem with a preset bit error rate threshold, compare the signal-to-noise ratio of each communication subsystem with a preset signal-to-noise ratio threshold, and determine that IDC interference still exists between the Wi-Fi subsystem and the NR subsystem in the case that the bit error rate of one communication subsystem is greater than or equal to the bit error rate threshold and the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold; therefore, the accuracy of judging whether IDC interference still exists between the Wi-Fi subsystem and the NR subsystem can be improved.
In other embodiments of the present application, determining that interference still exists between at least two communication subsystems based on the communication quality information in S104 of fig. 7 may also be implemented by S501:
s501, determining that interference still exists between at least two communication subsystems under the condition that at least any one communication subsystem is not in a normal communication state in the at least two communication subsystems based on the communication state of each communication subsystem in the at least two communication subsystems; the communication quality information includes: a communication state; the communication state represents whether the corresponding communication subsystem is in a normal communication state.
The electronic equipment can respectively acquire the communication states of the Wi-Fi subsystem and the NR subsystem through the controller, and directly acquire whether the communication subsystems are in a normal communication state or not through the communication state of each communication subsystem, so that whether the communication subsystems which do not normally communicate exist in the Wi-Fi subsystem and the NR subsystem or not is directly determined, and IDC interference still exists between the Wi-Fi subsystem and the NR subsystem under the condition that one communication subsystem which does not normally communicate is determined from the Wi-Fi subsystem and the NR subsystem, so that the Wi-Fi subsystem can be continuously controlled to adjust own communication parameters by adopting real-time messages in the following process. Therefore, compared with the method that whether the communication subsystem is in a normal communication state or not is judged through the communication quality parameters, the method is more convenient and fast, and therefore the subsequent IDC interference elimination efficiency can be improved.
In some embodiments, referring to fig. 10, fig. 10 is an optional flowchart of an interference cancellation method provided in this embodiment, based on fig. 7, the step of controlling at least one communication subsystem to adjust a communication parameter thereof by using a real-time message in S104 may be implemented by S601-S602, and will be described with reference to the steps shown in fig. 10.
S601, determining high-priority downlink time slot information of a first communication subsystem in real time through the first communication subsystem, carrying the downlink time slot information in a real-time message, and sending the real-time message to a second communication subsystem; the at least two communication subsystems include at least: a first communication subsystem and a second communication subsystem.
Here, the high priority downlink slot information may include at least: paging information, downlink reception in the access process, system information of a cell, measurement information of high priority, and the like.
Under the condition that the electronic equipment determines that the in-equipment coexistence interference still exists between the Wi-Fi subsystem and the NR subsystem, the NR subsystem can be controlled to determine high-priority downlink time slot information such as paging information of the NR subsystem, downlink receiving in the access process, system information of a cell, high-priority measurement information and the like, so that the high-priority downlink time slot information of the NR subsystem is determined through the NR subsystem, and the determined high-priority downlink time slot information is carried in a real-time message through the NR subsystem and is sent to the Wi-Fi subsystem.
In the embodiment of the application, each communication subsystem of the electronic device is further provided with a real-time interface, and under the condition that the electronic device sends the control message to the NR subsystem through the non-real-time interface of the controller, the NR subsystem determines the downlink timeslot information with high priority according to the control message received by the non-real-time interface of the NR subsystem, and directly sends the downlink timeslot information with high priority to the real-time interface of the Wi-Fi subsystem through the real-time interface of the NR subsystem, so that the downlink timeslot information with high priority determined by the NR subsystem is sent to the Wi-Fi subsystem through the real-time message.
And S602, stopping uplink transmission in the time slot corresponding to the downlink time slot information through the second communication subsystem.
The electronic device can control the Wi-Fi subsystem to stop sending data to the first external device in a time period corresponding to the high-priority downlink time slot of the NR subsystem under the condition that the Wi-Fi subsystem receives the high-priority downlink time slot information of the NR subsystem through the controller, so that the Wi-Fi subsystem cannot cause interference to the NR subsystem in the time period corresponding to the high-priority downlink time slot information of the NR subsystem.
In some embodiments of the present application, after S602 of fig. 10, the following steps may also be performed:
and S603, retransmitting the uplink transmission by adopting a retransmission mode through the second communication subsystem.
Continuing with the above example, the electronic device may control, through the controller, the Wi-Fi subsystem to resume sending data to the first external device through the retransmission mechanism after the end of the high-priority downlink timeslot information of the NR subsystem.
In the embodiment of the present application, since the Wi-Fi subsystem may stop working in the time period corresponding to the high-priority downlink timeslot information of the NR subsystem, and may work normally in other time periods, compared to the method 2 in the related art, where different wireless communication technologies employ a fixed time-sharing working mechanism, the method reduces the limitation on the working time of the corresponding communication subsystem, thereby greatly improving the communication efficiency of the corresponding communication subsystem.
Next, an exemplary application of the embodiment of the present application in a practical application scenario will be described. For example, fig. 11 is a schematic structural diagram of an electronic device in the application scenario provided by the embodiment of the present disclosure; as shown in fig. 11, the electronic device includes: a wireless local area network subsystem (Wi-Fi subsystem), a Bluetooth subsystem (BT subsystem), a global navigation satellite subsystem (GNSS subsystem), a long term evolution technology subsystem (LTE subsystem) and a new air interface communication subsystem (NR subsystem); a controller (not shown) of the electronic equipment is arranged in the application layer, an interference processing master control module (software module) is arranged in the controller, and the controller is provided with a non-real-time interface; the BT subsystem, the Wi-Fi subsystem, the GNSS subsystem, the LTE subsystem and the NR subsystem are respectively provided with a real-time interface and a real-time interference processing module (software module), and the BT subsystem, the Wi-Fi subsystem, the LTE subsystem and the NR subsystem are also provided with a non-real-time interference processing module (software module) and a non-real-time interface; the non-real-time interface is used for transmitting non-real-time messages among all communication subsystems in the electronic equipment, such as working information, working parameters, communication parameters, safe communication power and the like; a real-time interface, configured to transmit real-time messages between communication subsystems in the electronic device, for example, a high-priority downlink timeslot; in the application scene, the first communication subsystem is an NR subsystem, and the second communication subsystem is a Wi-Fi subsystem; in this application scenario, the interference cancellation method includes:
s1, the controller acquires respective working information transmitted by the Wi-Fi subsystem and the NR subsystem through the non-real-time interface of the controller, wherein the working information comprises working frequency points, transmission power (communication power), data states (such as idle state and connection state), high-priority events (such as whether to trigger access) and the like;
s2, the controller determines that working frequency points of the Wi-Fi subsystem and the NR subsystem are adjacent according to the working information, and determines that IDC interference exists between the Wi-Fi subsystem and the NR subsystem under the condition that the NR subsystem receives data from second external equipment while the Wi-Fi subsystem sends data to first external equipment;
s3, the controller carries the second working parameter of the Wi-Fi subsystem in the received working information in a non-real-time message, sends the second working parameter to the NR subsystem, and sends a control message to the NR subsystem through a self non-real-time interface so as to control the NR subsystem to determine the safe transmitting power of the Wi-Fi subsystem;
s4, the NR subsystem determines the safe transmitting power of the Wi-Fi subsystem through an IDC non-real time interference processing module according to the control information received by the non-real time interface and the number of antennas used in self communication by adopting a table look-up mode, carries the safe transmitting power in the non-real time information, and sends the non-real time information to the non-real time interface of the controller by adopting the non-real time interface;
s5, the controller receives and analyzes the non-real-time message of the NR subsystem, carries the safe transmitting power of the Wi-Fi subsystem in the non-real-time message, and sends the non-real-time message to a non-real-time interface of the Wi-Fi subsystem through a self non-real-time interface;
s6, the controller carries the first working parameter of the NR subsystem in the working information obtained in S1 in a non-real-time message through a non-real-time interface of the controller, and sends the second non-real-time message to a non-real-time interface of the Wi-Fi subsystem through the non-real-time interface of the controller;
s7, the controller sends control information to the Wi-Fi subsystem through a non-real-time interface of the controller, and the controller controls the Wi-Fi subsystem to determine whether a target working frequency point with a difference value larger than a preset threshold value with a first working frequency point of the NR subsystem exists in a plurality of available working frequency points of the controller;
s8, the Wi-Fi subsystem adjusts the current transmitting power of the Wi-Fi subsystem to be lower than the safe transmitting power by the IDC non-real-time interference processing module of the Wi-Fi subsystem and by adopting a table look-up mode under the condition that the Wi-Fi subsystem determines the Wi-Fi subsystem and the target working frequency band does not exist;
s9, the Wi-Fi subsystem adjusts the second working frequency point to the target working frequency point by the IDC non-real time interference processing module of the Wi-Fi subsystem in a table look-up mode under the condition that the target working frequency point is determined to exist in the Wi-Fi subsystem;
s10, the controller adjusts the own emission power below the safe emission power in the Wi-Fi subsystem, or after the Wi-Fi subsystem works at the target working frequency point, respectively sends control messages to the NR subsystem and the Wi-Fi subsystem through the own non-real-time interface, and controls the NR subsystem and the Wi-Fi subsystem to determine the respective communication quality information (such as signal-to-noise ratio and/or bit error rate);
s11, the Wi-Fi subsystem acquires own communication quality information through an IDC non-real-time interference processing module of the Wi-Fi subsystem, and sends the acquired communication quality information to a non-real-time interface of the controller through a non-real-time interface of the Wi-Fi subsystem;
s12, the NR subsystem acquires own communication quality information through an IDC non-real-time interference processing module of the NR subsystem, and sends the acquired communication quality information to a non-real-time interface of the controller through a non-real-time interface of the NR subsystem;
s13, the controller compares the communication quality information of the Wi-Fi subsystem and the NR subsystem with a communication threshold value respectively;
s14, when the controller determines that the communication quality information of the NR subsystem does not meet a communication threshold, or the communication quality information of the Wi-Fi subsystem does not meet the communication threshold, or the communication quality information of both the Wi-Fi subsystem and the NR subsystem does not meet the communication threshold, the controller sends control information to the NR subsystem through a non-real-time interface of the controller, controls the NR subsystem to determine downlink time slot information (such as paging information, downlink receiving in an access process, system information of a cell, measurement information of a high priority and the like) of the controller, and controls the NR subsystem to send the downlink time slot information of the controller to the Wi-Fi subsystem;
s15, the NR subsystem determines the downlink time slot information of high priority by an IDC real-time interference processing module of the NR subsystem, and directly sends the determined downlink time slot information of high priority to a real-time interface of a Wi-Fi subsystem through a real-time interface of the NR subsystem;
s16, the controller sends a control message to the Wi-Fi subsystem through a non-real-time interface of the controller, controls the Wi-Fi subsystem to stop sending data to the first external equipment in a time slot corresponding to the high-priority downlink time slot information of the NR subsystem, and controls the Wi-Fi subsystem to send data to the first external equipment again through a retransmission mechanism after the time slot corresponding to the high-priority downlink time slot information of the NR subsystem;
and S17, the Wi-Fi subsystem stops sending data to the first external equipment in the time slot corresponding to the high-priority downlink time slot information of the NR subsystem through the IDC real-time interference processing module of the Wi-Fi subsystem, and resends the data to the first external equipment through a retransmission mechanism after the time slot corresponding to the high-priority downlink time slot information of the NR subsystem.
An interference cancellation apparatus is further provided in the embodiment of the present application, and fig. 12 is a schematic structural diagram of the interference cancellation apparatus provided in the embodiment of the present application. As shown in fig. 12, the interference cancellation apparatus 1 includes: an obtaining module 10, configured to obtain working information of at least two communication subsystems; a cancellation module 20, configured to control at least one of the at least two communication subsystems by using a non-real-time message to adjust an operating parameter of the at least one communication subsystem when it is determined that interference exists between the at least two communication subsystems according to the operating information; determining communication quality information of the at least two communication subsystems; and under the condition that the interference still exists between the at least two communication subsystems is determined based on the communication quality information, the at least one communication subsystem is controlled by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem.
In some embodiments of the present application, the at least two communication subsystems comprise at least: a first communication subsystem and a second communication subsystem; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the eliminating module 20 is further configured to determine, in real time, downlink timeslot information of a high priority of the first communication subsystem through the first communication subsystem, and send the downlink timeslot information to the second communication subsystem, where the downlink timeslot information is carried in the real-time message; and stopping uplink transmission in the time slot corresponding to the downlink time slot information through the second communication subsystem.
In some embodiments of the present application, the eliminating module 20 is further configured to, after the uplink transmission is stopped in the time slot corresponding to the downlink time slot information through the second communication subsystem, perform the uplink transmission again through the second communication subsystem in a retransmission manner.
In some embodiments of the present application, the at least two communication subsystems comprise at least: a first communication subsystem and a second communication subsystem; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the work information includes: a second operating parameter of the second communication subsystem; a first operating parameter of the first communication subsystem; the non-real-time message includes: a first non-real time message and a second non-real time message; the eliminating module 20 is further configured to carry the second working parameter in the first non-real-time message and send the second working parameter to the first communication subsystem when it is determined that the second communication subsystem interferes with the first communication subsystem according to the first working parameter and the second working parameter; determining, by the first communication subsystem, a secure communication power of the second communication subsystem based on the second operating parameter and a downlink receiving parameter of the first communication subsystem, carrying the secure communication power in the second non-real-time message, and sending the secure communication power to the second communication subsystem to control the second communication subsystem, and adjusting the second operating parameter based on the secure communication power; the safe communication power is a communication power used by the second communication subsystem for normal uplink transmission and used for enabling the first communication subsystem to perform normal downlink reception.
In some embodiments of the present application, the at least two communication subsystems comprise at least: a first communication subsystem and a second communication subsystem; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the work information includes: a first operating parameter of the first communication subsystem and a second operating parameter of the second communication subsystem; the non-real-time message further comprises: a third non-real time message; the eliminating module 20 is further configured to carry the first working parameter in the third non-real-time message and send the third non-real-time message to the second communication subsystem when it is determined that the second communication subsystem interferes with the first communication subsystem according to the first working parameter and the second working parameter; adjusting, by the second communication subsystem, the second operating parameter of the second communication subsystem itself based on the first operating parameter to cancel interference.
In some embodiments of the present application, the first operating parameter includes at least: a first working frequency point; the second operating parameters include at least: a second working frequency point and a second communication power; the eliminating module 20 is further configured to determine, by the second communication subsystem, whether a target working frequency point exists in the second communication subsystem according to the first working frequency point; when the second communication subsystem acts on the target working frequency point, no interference is generated on the first communication subsystem; under the condition that the target working frequency point is determined, the second working frequency point is adjusted to the target working frequency point, so that the non-real-time interference elimination process is realized; under the condition that the target working frequency point is not determined, adopting safe communication power to realize the non-real-time interference elimination process; the safe communication power is a communication power used by the second communication subsystem for normal uplink transmission and used for enabling the first communication subsystem to perform normal downlink reception.
In some embodiments of the present application, the operational information includes: the first operating parameter includes: a first working frequency point; the second operating parameter includes: a second working frequency point; the eliminating module 20 is further configured to determine that the second communication subsystem generates interference to the first communication subsystem when it is determined that the difference between the first working frequency point and the second working frequency point is smaller than a preset difference and the first communication subsystem performs downlink reception and the second communication subsystem performs uplink transmission.
In some embodiments of the present application, the eliminating module 20 is further configured to determine that the second communication subsystem generates interference to the first communication subsystem when it is determined that the difference between the first operating frequency point and the second operating frequency point is smaller than a preset difference, and when the second communication subsystem is in a first data state and the first communication subsystem is in a second data state; the first data state represents that the second communication subsystem is performing uplink transmission, and the second data state represents that the first communication subsystem is performing downlink reception.
In some embodiments of the present application, the communication quality information includes: a communication quality parameter; the eliminating module 20 is further configured to determine, based on the communication quality parameter of each of the at least two communication subsystems, that interference still exists between the at least two communication subsystems when it is determined that the communication quality parameter of at least any one of the at least two communication subsystems does not satisfy a preset condition.
In some embodiments of the present application, the communication quality information includes: a communication state; the eliminating module 20 is further configured to determine, based on the communication state of each of the at least two communication subsystems, that interference still exists between at least two communication subsystems when it is determined that at least any one of the at least two communication subsystems is not in a normal communication state.
In some embodiments of the present application, the at least two communication subsystems are at least any two of a bluetooth subsystem, an LTE subsystem, an NR subsystem, a wireless local area network subsystem, a near field communication subsystem, a global navigation satellite subsystem, an LAA subsystem, and a ZigBee subsystem.
In some embodiments of the present application, the downlink timeslot information includes at least one of: paging information, downlink reception in the access process, system information of a cell, and measurement information of high priority.
An electronic device is further provided in an embodiment of the present application, and fig. 13 is a schematic structural diagram of the electronic device provided in the embodiment of the present application; as shown in fig. 13, the electronic apparatus 2 includes: a memory 21, a controller 22, and a communication bus 23; at least two communication subsystems for communicating data with external devices (not shown); the memory 21 and the controller 22 are connected by a communication bus 23. A memory 21 for storing executable instructions that, when executed by the controller 22, retrieve operational information of at least two communication subsystems; under the condition that the interference exists between the at least two communication subsystems according to the working information, adopting a non-real-time message to control at least one communication subsystem of the at least two communication subsystems so as to adjust the working parameters of the at least one communication subsystem; determining communication quality information of the at least two communication subsystems; and under the condition that the interference still exists between the at least two communication subsystems is determined based on the communication quality information, the at least one communication subsystem is controlled by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem.
Embodiments of the present application provide a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and executes the computer instructions, so that the computer device executes the interference cancellation method described in the embodiment of the present application.
Embodiments of the present application provide a computer-readable storage medium having stored thereon executable instructions that, when executed by a processor, cause the processor to perform a method provided by embodiments of the present application, for example, the method as illustrated in fig. 7-10.
In some embodiments, the computer-readable storage medium may be memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash, magnetic surface memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories.
In some embodiments, executable instructions may be written in any form of programming language (including compiled or interpreted languages), in the form of programs, software modules, scripts or code, and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
By way of example, executable instructions may correspond, but do not necessarily have to correspond, to files in a file system, and may be stored in a portion of a file that holds other programs or data, such as in one or more scripts in a hypertext Markup Language (HTML) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub-programs, or portions of code).
By way of example, executable instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or distributed across multiple sites and interconnected by a communication network.
In summary, according to the embodiments of the present application, in-device coexistence interference between communication subsystems can be effectively reduced, so as to improve communication quality when communication between the communication subsystems and external devices is performed.
The above description is only an example of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present application are included in the protection scope of the present application.

Claims (15)

1. An interference cancellation method, comprising:
acquiring working information of at least two communication subsystems;
under the condition that the interference between the at least two communication subsystems is determined according to the working information, adopting a non-real-time message to control at least one communication subsystem of the at least two communication subsystems so as to adjust the working parameters of the at least one communication subsystem;
determining communication quality information of the at least two communication subsystems;
and under the condition that the interference still exists between the at least two communication subsystems is determined based on the communication quality information, the at least one communication subsystem is controlled by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem.
2. The interference cancellation method according to claim 1, wherein said at least two communication subsystems comprise at least: a first communication subsystem and a second communication subsystem; the communication parameters represent uplink sending time; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the controlling the at least one communication subsystem with real-time messages to adjust its communication parameters includes:
determining the high-priority downlink time slot information of the first communication subsystem in real time through the first communication subsystem, carrying the downlink time slot information in the real-time message, and sending the real-time message to the second communication subsystem;
and stopping uplink transmission in the time slot corresponding to the downlink time slot information through the second communication subsystem.
3. The interference cancellation method according to claim 2, wherein after the second communication subsystem stops uplink transmission in the timeslot corresponding to the downlink timeslot information, the method further includes:
and retransmitting the uplink transmission by adopting a retransmission mode through the second communication subsystem.
4. The interference cancellation method according to claim 1, wherein said at least two communication subsystems comprise at least: a first communication subsystem and a second communication subsystem; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the work information includes: a second operating parameter of the second communication subsystem; a first operating parameter of the first communication subsystem; the non-real-time message includes: a first non-real time message and a second non-real time message;
the controlling, by using a non-real-time message, at least one of the at least two communication subsystems to adjust an operating parameter of the at least one communication subsystem when it is determined that interference exists between the at least two communication subsystems according to the operating information includes:
carrying the second working parameter in the first non-real-time message and sending the second working parameter to the first communication subsystem under the condition that the second communication subsystem generates interference on the first communication subsystem according to the first working parameter and the second working parameter;
determining, by the first communication subsystem, a secure communication power of the second communication subsystem based on the second operating parameter and a downlink receiving parameter of the first communication subsystem, carrying the secure communication power in the second non-real-time message, and sending the secure communication power to the second communication subsystem to control the second communication subsystem, and adjusting the second operating parameter based on the secure communication power; the safe communication power is a communication power used by the second communication subsystem for normal uplink transmission and used for enabling the first communication subsystem to perform normal downlink reception.
5. The interference cancellation method according to claim 1, wherein said at least two communication subsystems comprise at least: a first communication subsystem and a second communication subsystem; the first communication subsystem is used for downlink receiving, and the second communication subsystem is used for uplink sending; the work information includes: a first operating parameter of the first communication subsystem and a second operating parameter of the second communication subsystem; the non-real-time message further comprises: a third non-real time message;
in the event that interference between the at least two communication subsystems is determined to exist based on the operational information, controlling at least one of the at least two communication subsystems with a non-real-time message to adjust operational parameters of the at least one communication subsystem, comprising:
carrying the first working parameter in the third non-real-time message and sending the first working parameter to the second communication subsystem under the condition that the second communication subsystem generates interference on the first communication subsystem according to the first working parameter and the second working parameter;
adjusting, by the second communication subsystem, the second operating parameter of the second communication subsystem based on the first operating parameter to cancel interference.
6. The interference cancellation method according to claim 5, wherein said first operating parameters include at least: a first working frequency point; the second operating parameters include at least: a second working frequency point and a second communication power;
adjusting, by the second communication subsystem, the second operating parameter of the second communication subsystem based on the first operating parameter to cancel interference, comprising:
determining whether a target working frequency point exists in the second communication subsystem according to the first working frequency point through the second communication subsystem; when the second communication subsystem acts on the target working frequency point, no interference is generated on the first communication subsystem;
under the condition that the target working frequency point is determined, the second working frequency point is adjusted to the target working frequency point, so that the non-real-time interference elimination process is realized;
under the condition that the target working frequency point is not determined, adopting safe communication power to realize the non-real-time interference elimination process; the safe communication power is a communication power used by the second communication subsystem for normal uplink transmission and used for enabling the first communication subsystem to perform normal downlink reception.
7. The interference cancellation method according to claim 4 or 5, wherein said first operating parameter comprises: a first working frequency point; the second operating parameter includes: a second working frequency point; the determining that the second communication subsystem interferes with the first communication subsystem according to the first operating parameter and the second operating parameter includes:
and when determining that the difference between the first working frequency point and the second working frequency point is smaller than a preset difference and the first communication subsystem performs downlink receiving and the second communication subsystem performs uplink sending, determining that the second communication subsystem generates interference on the first communication subsystem.
8. The method of claim 7, wherein the determining that the difference between the first operating frequency point and the second operating frequency point is smaller than a preset difference and the second communication subsystem generates interference to the first communication subsystem when the first communication subsystem performs downlink reception and the second communication subsystem performs uplink transmission includes:
when the difference value between the first working frequency point and the second working frequency point is smaller than a preset difference value and the second communication subsystem is in a first data state and the first communication subsystem is in a second data state, determining that the second communication subsystem generates interference on the first communication subsystem; the first data state represents that the second communication subsystem is performing uplink transmission, and the second data state represents that the first communication subsystem is performing downlink reception.
9. The interference cancellation method according to any one of claims 1-6 or 8, wherein said communication quality information comprises: a communication quality parameter; said determining that interference still exists between said at least two communication subsystems based on said communication quality information comprises:
and determining that the interference still exists between the at least two communication subsystems under the condition that the communication quality parameter of at least any one communication subsystem in the at least two communication subsystems does not meet a preset condition based on the communication quality parameter of each communication subsystem in the at least two communication subsystems.
10. The interference cancellation method according to any one of claims 1-6 or 8, wherein said communication quality information comprises: a communication state; the communication state represents whether the corresponding communication subsystem is in a normal communication state or not; said determining that interference still exists between said at least two communication subsystems based on said communication quality information comprises:
and determining that the at least two communication subsystems are still interfered under the condition that at least any one of the at least two communication subsystems is not in a normal communication state based on the communication state of each of the at least two communication subsystems.
11. The interference cancellation method according to any one of claims 1 to 6 or 8, wherein the at least two communication subsystems are at least any two of a bluetooth subsystem, an LTE subsystem, an NR subsystem, a wireless local area network subsystem, a near field communication subsystem, a global navigation satellite subsystem, a LAA subsystem and a ZigBee subsystem.
12. The interference cancellation method according to claim 2 or 3, wherein the downlink timeslot information includes at least one of: paging information, downlink reception in the access process, system information of a cell, and measurement information of high priority.
13. An interference cancellation apparatus, comprising:
the acquisition module is used for acquiring the working information of at least two communication subsystems;
a cancellation module, configured to control at least one of the at least two communication subsystems by using a non-real-time message to adjust an operating parameter of the at least one communication subsystem when it is determined that interference exists between the at least two communication subsystems according to the operating information; determining communication quality information of the at least two communication subsystems; and the communication subsystem is used for controlling the at least one communication subsystem by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem under the condition that the interference still exists between the at least two communication subsystems based on the communication quality information.
14. An electronic device, comprising:
a memory for storing executable instructions;
at least two communication subsystems for data communication with external devices;
the controller is used for acquiring the working information of the at least two communication subsystems when the executable instructions stored in the memory are executed;
under the condition that the interference between the at least two communication subsystems is determined according to the working information, adopting a non-real-time message to control at least one communication subsystem of the at least two communication subsystems so as to adjust the working parameters of the at least one communication subsystem;
determining communication quality information of the at least two communication subsystems;
and under the condition that the interference still exists between the at least two communication subsystems is determined based on the communication quality information, the at least one communication subsystem is controlled by adopting a real-time message to adjust the communication parameters of the at least one communication subsystem.
15. A computer-readable storage medium having stored thereon executable instructions for, when executed by a processor, implementing the method of any one of claims 1 to 12.
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