CN113098670B - Carrier configuration method, device, base station and computer readable storage medium - Google Patents
Carrier configuration method, device, base station and computer readable storage medium Download PDFInfo
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- CN113098670B CN113098670B CN201911335791.2A CN201911335791A CN113098670B CN 113098670 B CN113098670 B CN 113098670B CN 201911335791 A CN201911335791 A CN 201911335791A CN 113098670 B CN113098670 B CN 113098670B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
Abstract
The disclosure provides a carrier configuration method, a carrier configuration device, a base station and a computer readable storage medium, and relates to the technical field of wireless communication. The carrier configuration method comprises the following steps: a base station acquires an uplink demand rate and a downlink demand rate of a cell edge user; and the base station configures corresponding uplink carrier and downlink carrier for the cell edge user according to the uplink required rate and the downlink required rate of the cell edge user so that the cell edge user can send uplink data and downlink data. According to the method and the device, the base station can flexibly configure the carrier for the user terminal according to the uplink demand rate and the downlink demand rate of the user terminal, so that the user terminal can send data through different working modes, and the data sending rate requirements of the user terminal under different service scenes can be met.
Description
Technical Field
The present disclosure relates to the field of wireless communications technologies, and in particular, to a carrier configuration method, apparatus, base station, and computer-readable storage medium.
Background
NR (New Radio ) will use a higher frequency band than LTE (Long Term Evolution). NR will use the frequency band of 3.5GHz or even more than 6 GHz.
However, the radio coverage of NR with high frequency deployment will be much worse than that of LTE with low frequency deployment. When LTE and NR are deployed in a battle, uplink coverage will become the bottleneck of NR coverage.
For this reason, the 3GPP (3 rd Generation Partnership Project) standard introduces a SUL (Supplementary Uplink) carrier (referred to as a Supplementary Uplink carrier) to improve the Uplink coverage of the NR. The SUL carriers may be statically or dynamically shared by the LTE and NR, and the sharing mode may be FDM (Frequency-division multiplexing) or TDM (Time-division multiplexing).
Disclosure of Invention
The technical problem solved by the present disclosure is how to meet the data transmission rate requirements of the user terminal in different service scenarios.
According to an aspect of the embodiments of the present disclosure, there is provided a carrier configuration method, including: a base station acquires an uplink demand rate and a downlink demand rate of a cell edge user; the base station configures corresponding uplink carrier and downlink carrier for the cell edge user according to the uplink demand rate and the downlink demand rate of the cell edge user, so that the cell edge user can send uplink data and downlink data.
In some embodiments, the base station configures corresponding uplink carrier and downlink carrier for the cell edge user according to the uplink required rate and the downlink required rate of the cell edge user, so that the sending of the uplink data and the downlink data by the cell edge user includes: when the uplink demand rate of the cell edge user is smaller than a first threshold and the downlink demand rate is smaller than a second threshold, the base station configures a supplementary uplink carrier of the main cell for the cell edge user, so that the cell edge user sends uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and sends downlink data through the downlink carrier of the main cell.
In some embodiments, the base station configures corresponding uplink carrier and downlink carrier for the cell edge user according to the uplink required rate and the downlink required rate of the cell edge user, so that the sending of the uplink data and the downlink data by the cell edge user includes: when the uplink demand rate of the cell edge user is smaller than a first threshold value and the downlink demand rate of the cell edge user is not smaller than a second threshold value, the base station configures a supplementary uplink carrier of the primary cell and a downlink carrier of the secondary cell for the cell edge user, so that the cell edge user sends uplink data through the uplink carrier and the supplementary uplink carrier of the primary cell, and sends downlink data through the downlink carrier of the primary cell and the downlink carrier of the secondary cell in a carrier aggregation manner.
In some embodiments, the base station configures corresponding uplink carrier and downlink carrier for the cell edge user according to the uplink required rate and the downlink required rate of the cell edge user, so that the sending of the uplink data and the downlink data by the cell edge user includes: the base station configures uplink carriers of the secondary cell and downlink carriers of the secondary cell for cell edge users under the condition that the uplink demand rate of the cell edge users is not less than a first threshold and the downlink demand rate of the cell edge users is not less than a second threshold, so that the cell edge users send uplink data in a carrier aggregation mode through the uplink carriers of the primary cell and the uplink carriers of the secondary cell, and send downlink data in a carrier aggregation mode through the downlink carriers of the primary cell and the downlink carriers of the secondary cell.
In some embodiments, the obtaining, by the base station, the uplink required rate and the downlink required rate of the cell edge user includes: a base station acquires a service identifier of a cell edge user; and the base station determines the uplink demand rate and the downlink demand rate of the cell edge user according to the service identification of the cell edge user.
In some embodiments, the RSRP of the cell-edge user is less than the third threshold, or the SINR of the cell-edge user is less than the fourth threshold.
According to another aspect of the embodiments of the present disclosure, there is provided a base station including: a rate acquisition module configured to: acquiring an uplink demand rate and a downlink demand rate of cell edge users; a carrier configuration module configured to: and configuring corresponding uplink carrier waves and downlink carrier waves for the cell edge users according to the uplink demand rate and the downlink demand rate of the cell edge users so that the cell edge users can send uplink data and downlink data.
In some embodiments, the carrier configuration module is configured to: and under the condition that the uplink demand rate of the cell edge user is less than a first threshold and the downlink demand rate is less than a second threshold, configuring a supplementary uplink carrier of the main cell for the cell edge user so that the cell edge user can send uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and send downlink data through the downlink carrier of the main cell.
In some embodiments, the carrier configuration module is configured to: and under the conditions that the uplink demand rate of the cell edge user is smaller than a first threshold value and the downlink demand rate is not smaller than a second threshold value, configuring a supplementary uplink carrier of the primary cell and a downlink carrier of the secondary cell for the cell edge user so that the cell edge user can send uplink data through the uplink carrier and the supplementary uplink carrier of the primary cell and send downlink data through the downlink carrier of the primary cell and the downlink carrier of the secondary cell in a carrier aggregation mode.
In some embodiments, the carrier configuration module is configured to: under the condition that the uplink demand rate of the cell edge user is not less than a first threshold and the downlink demand rate is not less than a second threshold, configuring an uplink carrier of a secondary cell and a downlink carrier of the secondary cell for the cell edge user, so that the cell edge user sends uplink data in a carrier aggregation mode through the uplink carrier of the primary cell and the uplink carrier of the secondary cell, and sends downlink data in a carrier aggregation mode through the downlink carrier of the primary cell and the downlink carrier of the secondary cell.
In some embodiments, the rate acquisition module is configured to: acquiring a service identifier of a cell edge user; and determining the uplink demand rate and the downlink demand rate of the cell edge user according to the service identifier of the cell edge user.
In some embodiments, the RSRP of the cell-edge user is less than the third threshold, or the SINR of the cell-edge user is less than the fourth threshold.
According to another aspect of the embodiments of the present disclosure, there is provided a carrier configuration apparatus, including: a memory; and a processor coupled to the memory, the processor configured to perform the aforementioned carrier wave configuration method based on instructions stored in the memory.
According to still another aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium storing computer instructions, which when executed by a processor, implement the foregoing carrier wave configuration method.
According to the method and the device, the base station can flexibly configure the carrier for the user terminal according to the uplink demand rate and the downlink demand rate of the user terminal, so that the user terminal can send data through different working modes, and the data sending rate requirements of the user terminal under different service scenes can be met.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows a flow diagram of a carrier configuration method of some embodiments of the present disclosure.
Fig. 2 shows a schematic structural diagram of a base station of some embodiments of the present disclosure.
Fig. 3 shows a schematic structural diagram of a carrier configuration apparatus according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without inventive step, are intended to be within the scope of the present disclosure.
The inventor researches and discovers that the SUL technology has the following characteristics: one logical cell includes 1 DL (Downlink) carrier and 2 UL (Uplink) carriers, a user equipment cannot simultaneously transmit Uplink data on the 2 UL carriers, and the terminal can dynamically switch between the two UL carriers to transmit the Uplink data. The ue needs to listen to a UL grant (Uplink grant) containing a bit field indicating a UL carrier scheduled on a PUSCH (Physical Uplink Shared Channel). Because the SUL technology downlink is only configured with 1 carrier, the downlink rate is limited; the uplink is configured with only 1 carrier, and thus the uplink rate is limited.
The DL CA (Carrier aggregation) technology has the following characteristics: the downlink configuration contains two or more carriers and the uplink configuration has 1 carrier. The same logical cell includes 1 DL carrier and 1 UL carrier, and a plurality of downlink carriers correspond to the same uplink carrier. Since the DL CA technology uplink is configured with only 1 carrier, the uplink rate is limited.
The UL CA technology has the following characteristics: one logical cell contains 1 DL and 1 UL carrier, the user terminal supports sending uplink data on two UL carriers simultaneously, and the user terminal monitors downlink carriers of the two cells simultaneously and obtains UL grants respectively to determine the scheduled UL carriers on the PUSCH. Because the user terminal in the UL CA technology needs to support the function of sending uplink data on two UL carriers simultaneously, a single carrier cannot use high power of 26dBm, and meanwhile, the low frequency is used as the carrier frequency of the main cell, which may cause overload.
Some embodiments of the carrier configuration method of the present disclosure are described below in conjunction with fig. 1.
Fig. 1 shows a flow diagram of a carrier configuration method of some embodiments of the present disclosure. As shown in fig. 1, the present embodiment includes steps S101 to S102.
In step S101, the base station obtains an uplink required rate and a downlink required rate of a cell edge user.
The uplink coverage of the cell edge user is poor, so the RSRP (Reference Signal Receiving Power) or SINR (Signal to Interference plus Noise Ratio) of the cell edge user is small. The base station may first obtain the service identifier of the cell edge user, and then determine the uplink demand rate and the downlink demand rate of the cell edge user according to the service identifier of the cell edge user.
In step S102, the base station configures corresponding uplink carrier and downlink carrier for the cell edge user according to the uplink required rate and the downlink required rate of the cell edge user, so that the cell edge user sends uplink data and downlink data.
In this embodiment, in the case that there are multiple carriers in the system, the base station can flexibly configure carriers for the user terminal according to the uplink required rate and the downlink required rate of the user terminal, so that the user terminal sends data in different working modes, thereby meeting the data sending rate requirements of the user terminal in different service scenarios.
In some embodiments, the step S102 may specifically adopt the following three modes according to the difference between the uplink required rate and the downlink required rate of the cell edge user.
The first mode is as follows: SUL mode
And under the condition that the uplink demand rate of the cell edge user is less than a first threshold value and the downlink demand rate is less than a second threshold value, the base station configures a supplementary uplink carrier for the cell edge user. The base station configures a supplementary uplink carrier of the main cell for the cell edge user, so that the cell edge user sends uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and sends downlink data through the downlink carrier of the main cell.
In the first mode, the base station may configure a supplementary uplink carrier for a cell edge user with a low uplink and downlink demand rate, so as to improve uplink coverage of the cell edge user.
And a second mode: SUL + DL CA Pattern
Under the condition that the uplink demand rate of the cell edge user is smaller than a first threshold and the downlink demand rate is not smaller than a second threshold, the base station configures a supplementary uplink carrier of the primary cell and a downlink carrier of the secondary cell for the cell edge user, so that the cell edge user sends uplink data through the uplink carrier and the supplementary uplink carrier of the primary cell, and sends downlink data through the downlink carrier of the primary cell and the downlink carrier of the secondary cell in a carrier aggregation manner.
In the first mode, the base station may configure a supplementary uplink carrier and a downlink carrier of the secondary cell for the cell edge user with a higher downlink demand rate, so as to improve the uplink coverage of the cell edge user and improve the downlink data transmission rate of the cell edge user.
In some embodiments, in the SUL + DL CA mode, a cell with a high frequency carrier is used as a primary cell, so that an overload phenomenon of a low frequency carrier can be avoided.
And a third mode: DL CA + UL CA pattern
Under the condition that the uplink demand rate of the cell edge user is not less than a first threshold value and the downlink demand rate is not less than a second threshold value, the base station configures the uplink carrier of the secondary cell and the downlink carrier of the secondary cell for the cell edge user, so that the cell edge user sends uplink data in a carrier aggregation mode through the uplink carrier of the primary cell and the uplink carrier of the secondary cell, and sends downlink data in a carrier aggregation mode through the downlink carrier of the primary cell and the downlink carrier of the secondary cell.
In mode three, the base station may configure an uplink carrier of the secondary cell and a downlink carrier of the secondary cell for the cell edge user with a higher downlink demand rate, and simultaneously improve the uplink data transmission rate and the downlink data transmission rate of the cell edge user.
Those skilled in the art should understand that the different operation modes can be switched semi-statically or dynamically, wherein the semi-static switching can be controlled by high layer RRC (Radio Resource Control) signaling, and the dynamic switching can be controlled by Downlink Control Information DCI (Downlink Control Information).
Some embodiments of the disclosed base station are described below in conjunction with fig. 2.
Fig. 2 shows a schematic structural diagram of a base station of some embodiments of the present disclosure. As shown in fig. 2, the base station 20 in the present embodiment includes: a rate acquisition module 201 configured to: acquiring an uplink demand rate and a downlink demand rate of cell edge users; a carrier configuration module 202 configured to: and configuring corresponding uplink carrier waves and downlink carrier waves for the cell edge users according to the uplink demand rate and the downlink demand rate of the cell edge users so that the cell edge users can send uplink data and downlink data.
In some embodiments, the carrier configuration module 202 is configured to: and under the condition that the uplink demand rate of the cell edge user is less than a first threshold and the downlink demand rate is less than a second threshold, configuring a supplementary uplink carrier of the main cell for the cell edge user so that the cell edge user can send uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and send downlink data through the downlink carrier of the main cell.
In some embodiments, the carrier configuration module 202 is configured to: and under the condition that the uplink demand rate of the cell edge user is smaller than a first threshold and the downlink demand rate is not smaller than a second threshold, configuring a supplementary uplink carrier of the primary cell and a downlink carrier of the secondary cell for the cell edge user so that the cell edge user can send uplink data through the uplink carrier and the supplementary uplink carrier of the primary cell and send downlink data through the downlink carrier of the primary cell and the downlink carrier of the secondary cell in a carrier aggregation mode.
In some embodiments, the carrier configuration module 202 is configured to: under the condition that the uplink demand rate of the cell edge user is not less than a first threshold and the downlink demand rate is not less than a second threshold, configuring an uplink carrier of a secondary cell and a downlink carrier of the secondary cell for the cell edge user, so that the cell edge user sends uplink data in a carrier aggregation mode through the uplink carrier of the primary cell and the uplink carrier of the secondary cell, and sends downlink data in a carrier aggregation mode through the downlink carrier of the primary cell and the downlink carrier of the secondary cell.
In some embodiments, the rate acquisition module 201 is configured to: acquiring a service identifier of a cell edge user; and determining the uplink demand rate and the downlink demand rate of the cell edge user according to the service identifier of the cell edge user.
In some embodiments, the RSRP of the cell-edge user is less than the third threshold, or the SINR of the cell-edge user is less than the fourth threshold.
Some embodiments of the carrier configuration apparatus of the present disclosure are described below in conjunction with fig. 3.
Fig. 3 shows a schematic structural diagram of a carrier configuration apparatus according to some embodiments of the present disclosure. As shown in fig. 3, the carrier configuration apparatus 30 of this embodiment includes: a memory 310 and a processor 320 coupled to the memory 310, the processor 320 configured to perform the carrier wave configuration method in any of the foregoing embodiments based on instructions stored in the memory 310.
The carrier configuration apparatus 30 may further include an input-output interface 330, a network interface 340, a storage interface 350, and the like. These interfaces 330, 340, 350 and the memory 310 and the processor 320 may be connected, for example, by a bus 360. The input/output interface 330 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 340 provides a connection interface for various networking devices. The storage interface 350 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also includes a computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement a carrier configuration method in any of the foregoing embodiments.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, which is to be construed in any way as imposing limitations thereon, such as the appended claims, and all changes and equivalents that fall within the true spirit and scope of the present disclosure.
Claims (8)
1. A carrier configuration method, comprising:
a base station acquires an uplink demand rate and a downlink demand rate of a cell edge user;
the base station compares the uplink demand rate of the cell edge user with a first threshold value, and compares the downlink demand rate of the cell edge user with a second threshold value;
determining a service scenario according to a comparison result between an uplink demand rate of a cell edge user and a first threshold and a comparison result between a downlink demand rate of the cell edge user and a second threshold, and configuring an uplink carrier and a downlink carrier corresponding to the service scenario for the cell edge user so that the cell edge user sends uplink data and receives downlink data, including:
the base station configures a supplementary uplink carrier of a main cell for a cell edge user under the condition that the uplink demand rate of the cell edge user is smaller than a first threshold and the downlink demand rate is smaller than a second threshold, so that the cell edge user sends uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and receives downlink data through a downlink carrier of the main cell; and/or the presence of a gas in the gas,
under the condition that the uplink demand rate of a cell edge user is smaller than a first threshold value and the downlink demand rate is not smaller than a second threshold value, a base station configures a supplementary uplink carrier of a main cell and a downlink carrier of a secondary cell for the cell edge user so that the cell edge user can send uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and receive downlink data through the downlink carrier of the main cell and the downlink carrier of the secondary cell in a carrier aggregation mode; and/or the presence of a gas in the gas,
the base station configures uplink carriers of the secondary cell and downlink carriers of the secondary cell for cell edge users under the condition that the uplink demand rate of the cell edge users is not less than a first threshold and the downlink demand rate of the cell edge users is not less than a second threshold, so that the cell edge users can send uplink data in a carrier aggregation mode through the uplink carriers of the primary cell and the uplink carriers of the secondary cell, and receive downlink data in a carrier aggregation mode through the downlink carriers of the primary cell and the downlink carriers of the secondary cell.
2. The carrier configuration method according to claim 1, wherein the base station acquiring the uplink demand rate and the downlink demand rate of the cell edge user comprises:
a base station acquires a service identifier of a cell edge user;
and the base station determines the uplink demand rate and the downlink demand rate of the cell edge user according to the service identification of the cell edge user.
3. The carrier configuration method according to any of claims 1 to 2, wherein the RSRP of the cell-edge users is less than a third threshold, or the SINR of the cell-edge users is less than a fourth threshold.
4. A base station, comprising:
a rate acquisition module configured to: acquiring an uplink demand rate and a downlink demand rate of cell edge users;
a carrier configuration module configured to: comparing the uplink demand rate of the cell edge user with a first threshold value, and comparing the downlink demand rate of the cell edge user with a second threshold value;
determining a service scenario according to a comparison result between an uplink demand rate of a cell edge user and a first threshold and a comparison result between a downlink demand rate of the cell edge user and a second threshold, and configuring an uplink carrier and a downlink carrier corresponding to the service scenario for the cell edge user so that the cell edge user sends uplink data and receives downlink data, including:
configuring a supplementary uplink carrier of a main cell for cell edge users under the condition that the uplink demand rate of the cell edge users is smaller than a first threshold and the downlink demand rate is smaller than a second threshold, so that the cell edge users can send uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and receive downlink data through the downlink carrier of the main cell; and/or the presence of a gas in the gas,
under the condition that the uplink demand rate of the cell edge user is smaller than a first threshold value and the downlink demand rate is not smaller than a second threshold value, configuring a supplementary uplink carrier of a main cell and a downlink carrier of a secondary cell for the cell edge user so that the cell edge user can send uplink data through the uplink carrier and the supplementary uplink carrier of the main cell and receive downlink data through the downlink carrier of the main cell and the downlink carrier of the secondary cell in a carrier aggregation mode; and/or the presence of a gas in the gas,
under the condition that the uplink demand rate of the cell edge user is not less than a first threshold and the downlink demand rate is not less than a second threshold, configuring an uplink carrier of a secondary cell and a downlink carrier of the secondary cell for the cell edge user, so that the cell edge user sends uplink data in a carrier aggregation mode through the uplink carrier of the primary cell and the uplink carrier of the secondary cell, and receives downlink data in a carrier aggregation mode through the downlink carrier of the primary cell and the downlink carrier of the secondary cell.
5. The base station of claim 4, wherein the rate acquisition module is configured to:
acquiring a service identifier of a cell edge user;
and determining the uplink demand rate and the downlink demand rate of the cell edge user according to the service identifier of the cell edge user.
6. The base station of any of claims 4 to 5, wherein the RSRP of the cell edge user is less than a third threshold, or the SINR of the cell edge user is less than a fourth threshold.
7. A carrier configuration apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the carrier configuration method of any of claims 1-3 based on instructions stored in the memory.
8. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions which, when executed by a processor, implement the carrier configuration method of any of claims 1 to 3.
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| CN110557821A (en) * | 2018-06-04 | 2019-12-10 | 中国移动通信有限公司研究院 | Power control method, device, equipment and storage medium |
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| CN108370574A (en) * | 2017-10-30 | 2018-08-03 | 北京小米移动软件有限公司 | Accidental access method and device |
| CN110401970A (en) * | 2018-04-25 | 2019-11-01 | 中国移动通信有限公司研究院 | A kind of transmission method, base station and terminal |
| WO2019216697A1 (en) * | 2018-05-10 | 2019-11-14 | 주식회사 아이티엘 | Method for transmitting or receiving signal in nr system for unlicensed band and apparatus therefor |
| CN110557821A (en) * | 2018-06-04 | 2019-12-10 | 中国移动通信有限公司研究院 | Power control method, device, equipment and storage medium |
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