CN113747561A

CN113747561A - Millimeter wave communication method and base station

Info

Publication number: CN113747561A
Application number: CN202110989890.3A
Authority: CN
Inventors: 武传国; 谭定富; 唐兵; 是元吉
Original assignee: Shanghai Qingkun Information Technology Co Ltd
Current assignee: Shanghai Qingkun Information Technology Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-12-03

Abstract

The embodiment of the application provides a millimeter wave communication method, which comprises the steps that a base station enters a rain attenuation mode according to the current rainfall intensity, the power adjustment amount and the scheduling adjustment granularity needed by service transmission between the base station and User Equipment (UE) are obtained based on the rainfall intensity interval where the current rainfall intensity is located, and the service transmission is carried out with the UE according to the power adjustment amount and the scheduling adjustment granularity, so that the communication quality in a rain attenuation scene is ensured, and the user experience is improved.

Description

Millimeter wave communication method and base station

Technical Field

The present application relates to the field of communications technologies, and in particular, to a millimeter wave communication method and a base station.

Background

With the development of wireless communication technology, the application of wireless networks is more and more extensive, and wireless access technology is continuously evolving. For example, the fourth Generation (4G) communication technology has evolved to the fifth Generation (5G) communication technology, or New Radio (NR) communication technology, and is beginning to be commercialized.

Compared with the prior wireless communication technology, the NR communication technology can support higher bandwidth and lower delay, thereby being capable of dealing with the service requirement of more complex scenes.

The NR communication technology includes sub-6G and above-6G (NR millimeter wave communication), where the frequency band corresponding to sub-6G is 6GHz, and the frequency band corresponding to above-6G is greater than 6GHz, and for a single central frequency point, sub-6G can support a maximum bandwidth of 100MHz, and above-6G can support a maximum bandwidth of 400MHz, so that, theoretically, above-6G can support a higher throughput requirement than sub-6G.

Although the NR above-6G can support a higher throughput requirement, since the operating frequency band belongs to the millimeter wave band and is easily affected by external environments such as rain attenuation, in practical applications, NR millimeter wave communication has a robustness problem, which affects user experience.

Disclosure of Invention

In view of this, the present application provides a method and a base station for millimeter wave communication, so as to improve robustness of millimeter wave communication and improve user experience.

In one implementation, the present application provides a millimeter wave communication method, where if the acquired current rainfall intensity exceeds a rain attenuation threshold, a base station enters a rain attenuation mode; according to the rainfall intensity interval where the current rainfall intensity is located, the base station acquires the power adjustment amount and/or the scheduling adjustment granularity required by the service transmission between the base station and the user equipment; and performing the service transmission with the UE according to the power adjustment amount and/or the scheduling adjustment granularity.

Optionally, for downlink service transmission, the power adjustment amount includes a CSI-RS power adjustment amount and/or a PDCCH power adjustment amount, the scheduling adjustment granularity includes a MCS (modulation coding scheme) order adjustment amount of a PDSCH (physical downlink shared channel), and the base station increases the CSI-RS power adjustment amount based on a normal power of the CSI-RS to send the CSI-RS to the UE; and the base station transmits the downlink service with the UE through the PDCCH and the PDSCH according to the CSI reported by the UE, wherein the transmission power of the PDCCH is that the PDCCH power adjustment amount is increased on the basis of the normal power of the PDCCH, and the MCS of the PDSCH is that the MCS order adjustment amount is reduced on the basis of the normal MCS of the PDSCH.

Optionally, the scheduling adjustment granularity further includes a control channel element CCE aggregation level adjustment amount of the PDCCH, and in the downlink service transmission, the base station increases the CCE aggregation level adjustment amount of the PDCCH based on a current aggregation level of the CCE of the PDCCH.

Optionally, for uplink service transmission, the power adjustment amount includes the UE uplink power control adjustment amount and/or a physical uplink control channel, PUCCH, power adjustment amount, and the scheduling adjustment granularity includes a modulation and coding scheme, MCS, order adjustment amount of a physical uplink shared channel, PUSCH, and the base station sends the power adjustment amount and the scheduling adjustment granularity to the UE, so that the UE increases normal uplink power by the uplink power control adjustment amount, increases normal PUCCH power by the PUCCH power adjustment amount, and decreases normal MCS order of the PUSCH by the MCS order adjustment amount, and then performs uplink service transmission with the base station.

Optionally, the power adjustment amount and the scheduling adjustment granularity may be reasonably combined based on system performance requirements.

In another implementation, the present application further provides a base station, which includes a unit for implementing the above millimeter wave communication method, where each step may be implemented by a separate unit, or all or part of the units may be integrated together. These units may be logic units, stored in the form of software or hardware, for example, in a memory in the form of a program, which is called by a processor to implement the functions of the respective units; as another example, the instructions may be implemented in hardware circuitry, such as may be implemented by logic gates.

In one example, the present application provides a base station comprising: an acquisition unit and a processing unit; the acquiring unit is used for acquiring the current rainfall intensity; the processing unit is configured to, if the current rainfall intensity exceeds a rainfall attenuation threshold, enter a rainfall attenuation mode by the base station; the processing unit is further configured to obtain a power adjustment amount and a scheduling adjustment granularity required by service transmission between the base station and the user equipment based on the rainfall intensity interval where the current rainfall intensity is located; and performing the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity.

In another example, the present application also provides a base station comprising a processor for invoking a program stored in a memory to implement the above millimeter wave communication method.

In yet another implementation, the present application further provides a storage medium having stored therein program code, which when invoked by a processor, causes the processor to implement the above method of millimeter wave communication.

By the method, the base station obtains the power adjustment amount and the scheduling adjustment granularity required by the service transmission between the base station and the user equipment based on the rainfall intensity interval where the current rainfall intensity is located, and performs the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity, so that the robustness of millimeter wave communication is improved, the communication quality in a rain fade scene is ensured, and the user experience is improved.

Drawings

The following description of specific embodiments of the present application will be made with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a millimeter wave communication method according to an embodiment of the present disclosure;

fig. 3 is a flowchart of a millimeter wave communication method according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a base station according to an embodiment of the present application;

fig. 5 is a schematic diagram of another base station according to an embodiment of the present application.

Detailed Description

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the present application, and that for a person skilled in the art, other drawings and other embodiments can be obtained from these drawings without inventive effort. For the sake of simplicity, the drawings only schematically show the parts relevant to the present application, and they do not represent the actual structure as a product.

Please refer to fig. 1, which is a schematic diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system includes AN Access Network (AN) 110 and a Core Network (CN) 120, and a User Equipment (UE) 130 accesses to a wireless Network through the AN 110 and communicates with other networks, such as a Data Network (Data Network), through the CN 120.

The AN may also be referred to as a Radio Access Network (RAN), and the device on the AN side may be referred to as AN device or a RAN device, and may also be referred to as a base station. The names of the different communication systems are different, for example, in a Long Term Evolution (LTE) system, the communication system may be referred to as an evolved Node B (eNB), and in a 5G system, the communication system may be referred to as a next generation Node B (gnb). AN apparatus may also be a Centralized Unit (CU), a Distributed Unit (DU), or include a CU and a DU.

The NR communication technology includes sub-6G and above-6G (NR millimeter wave communication), where the frequency band corresponding to sub-6G is 6GHz, and the frequency band corresponding to above-6G is greater than 6GHz, and for a single central frequency point, sub-6G can support a maximum bandwidth of 100MHz, and above-6G can support a maximum bandwidth of 400MHz, so that, theoretically, above-6G can support a higher throughput requirement than sub-6G. Although the NR above-6G can support a higher throughput requirement, since the operating frequency band belongs to the millimeter wave band and is easily affected by external environments such as rain attenuation, in practical applications, NR millimeter wave communication has a robustness problem, which affects user experience.

In the scheme of the invention, the base station acquires the power adjustment amount and the scheduling adjustment granularity required by the service transmission between the base station and the user equipment based on the rainfall intensity interval in which the current rainfall intensity is positioned, and performs the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity, so that the robustness of millimeter wave communication is improved, the communication quality in a rain fade scene is ensured, and the user experience is improved.

The scheme of the embodiment of the application is described below with reference to the attached drawings.

Please refer to fig. 2, which is a schematic diagram of a millimeter wave communication method according to an embodiment of the present disclosure. As shown in fig. 2, the method is performed by a base station, and includes the following steps:

s210: and acquiring the current rainfall intensity.

The base station may obtain the current rainfall intensity from a weather bureau or the base station may obtain the current rainfall intensity from a weather service provider.

S220: and if the current rainfall intensity exceeds the rain attenuation threshold, the base station enters a rain attenuation mode.

The rain attenuation threshold is set in advance according to the data statistical information and/or the system performance requirement, and it can be understood that the rain attenuation threshold can be adjusted or changed based on the system performance requirement and the like.

The current rainfall intensity exceeds the rain attenuation threshold, which indicates that the performance of millimeter wave communication is affected by rain attenuation. It will be appreciated that the above-described conventional mode is the default mode of operation of the base station.

Alternatively, the processing of the base station entering the rain attenuation mode may be omitted, that is, if the current rainfall intensity exceeds the rain attenuation threshold, the processing of S230 is directly performed.

S230: based on the rainfall intensity interval where the current rainfall intensity is located, the base station obtains a power adjustment amount and a scheduling adjustment granularity required by service transmission between the base station and User Equipment (UE).

The rainfall intensity may be divided into different levels, and the different levels correspond to different rainfall intervals (or rainfall intensity intervals).

Based on a plurality of pre-divided rainfall intensity intervals, the base station can know the rainfall intensity interval where the acquired current rainfall intensity is located.

The service transmission between the base station and the UE includes uplink service transmission, downlink service transmission, and the like.

Generally, for downlink service transmission, a base station sends a Channel State Information-Reference Signal (CSI-RS) to a UE at a certain power, and the UE performs CSI measurement based on the CSI-RS and reports a CSI measurement result to the base station. The UE can realize CSI information reporting in a periodic, non-periodic and semi-continuous mode. Specifically, the base station performs Downlink service transmission with the UE through a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) according to the CSI reported by the UE.

The power adjustment amount required for downlink traffic transmission includes, but is not limited to, CSI-RS power adjustment amount and/or PDCCH power adjustment amount, and the scheduling adjustment granularity includes, but is not limited to, MSC order adjustment amount of PDSCH.

Optionally, the scheduling adjustment granularity further includes a Control Channel Element (CCE) aggregation level adjustment amount of the PDCCH, and the base station increases the CCE aggregation level adjustment amount based on a current aggregation level of the CCE of the PDCCH.

In one implementable example, for NR, the CCE aggregation level of PDCCH comprises 1,2,4,8, 16. Assuming that the current aggregation level is 1, and the aggregation level is 2 after increasing level 1; assuming that the current aggregation level is 2, the aggregation level is 4 after increasing level 1, the aggregation level is 8 after increasing level 2, and the aggregation level is 16 after increasing level 3; assuming that the current aggregation level is 4, the aggregation level is 8 after increasing level 1; assuming that the current aggregation level is 8, the aggregation level is 16 after increasing level 1; assuming that the current aggregation level is 16, the upper limit of the aggregation level has been reached, and the actual aggregation level is still 16 regardless of the addition of several levels of aggregation levels.

Based on the method of the embodiment of the invention, for the downlink service, the base station can acquire the adjustment quantity of the CSI-RS power and/or the adjustment quantity of the PDCCH power and/or the adjustment quantity of the MSC order of the PDSCH and/or the adjustment quantity of the CCE aggregation level of the PDCCH, which are required by the downlink service, based on the rainfall intensity interval where the current rainfall intensity is located.

Generally, for Uplink traffic transmission, UE Uplink power Control, a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH) are involved, a power adjustment amount required for Uplink traffic transmission includes, but is not limited to, a UE Uplink power Control adjustment amount and/or a PUCCH power adjustment amount, and a scheduling adjustment granularity includes, but is not limited to, an MSC order adjustment amount of the PUSCH. It can be understood that, in the rain fade mode, the base station sends the acquired uplink service power adjustment amount and the scheduling adjustment granularity to the UE, so that the UE can use the uplink service power adjustment amount and the scheduling adjustment granularity.

Based on the method of the embodiment of the invention, for the uplink service, the base station can acquire the uplink power control adjustment quantity of the UE and/or the PUCCH power adjustment quantity and/or the MSC order adjustment quantity of the PUSCH, which are/is required when the uplink service is carried out, based on the rainfall intensity interval where the current rainfall intensity is located.

Optionally, the base station maintains a corresponding relationship table of the rainfall intensity interval, the power adjustment amount and the scheduling adjustment granularity in advance. And inquiring the corresponding relation table to obtain the power adjustment amount and the scheduling adjustment granularity required by service transmission based on the rainfall intensity interval in which the current rainfall intensity is positioned.

S240: and the base station transmits the service with the UE according to the power adjustment amount and the scheduling adjustment granularity.

For the conventional mode, the transmission power of the signal or channel required by service transmission and/or the MSC and/or CCE aggregation level have default values, which can meet the system performance requirements for normal operation. For a rain fade scene, due to millimeter wave communication, wireless signals are greatly attenuated.

For downlink services, a base station increases the CSI-RS power adjustment amount on the basis of the normal power of a CSI-RS to transmit the CSI-RS to a UE, and/or increases the PDCCH power adjustment amount on the basis of the normal power of the PDCCH to transmit the PDCCH, and/or reduces the MCS order adjustment amount on the basis of the normal MCS of the PDSCH to transmit the PDSCH, and/or adjusts the CCE aggregation level on the basis of the CCE aggregation level adjustment amount of the corresponding PDCCH.

For the uplink service, the UE increases the uplink power control adjustment amount for the normal uplink power and/or increases the PUCCH power adjustment amount for the normal uplink power and/or decreases the MCS order adjustment amount for the normal MCS order of the PUSCH according to the power adjustment amount and the scheduling adjustment granularity required by the received uplink service, and then performs uplink service transmission with the base station.

It is understood that the above normal power refers to a power value of a corresponding channel or signal of the base station in the normal mode.

By the method, the base station obtains the power adjustment amount and the scheduling adjustment granularity required by the service transmission between the base station and the UE based on the rainfall intensity interval where the current rainfall intensity is located, and performs the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity, so that the robustness of millimeter wave communication is improved, the communication quality in a rain fade scene is ensured, and the user experience is improved.

To further illustrate aspects of embodiments of the present application, reference is made to FIG. 3 for a detailed description. It should be noted that, in the embodiment shown in fig. 3, the same or similar contents as those in the embodiment shown in fig. 2 may refer to the detailed description in the embodiment shown in fig. 2, and are not repeated in the following.

Please refer to fig. 3, which is a flowchart illustrating a millimeter wave communication method according to an embodiment of the present disclosure.

In one practical way, the base station divides the rainfall intensity into different levels, as shown in table 1. It is to be understood that the divisions of table 1 do not limit the embodiments of the present invention.

Table 1: intensity of rainfall

Intensity of rainfall	Precipitation amount (unit: mm) converted to 24 hours
		Drizzling	<5
Light rain	5～10
		Medium rain	10～25
Heavy rain	25～50
		Heavy Rain	50～100
Heavy rainstorm	100～250
		Extra-large heavy rain	>250

The base station can directly acquire the current rainfall intensity from a weather bureau and can also support the indirect acquisition of the current rainfall intensity from other weather service providers.

The rainfall intensity P is converted to correspond to the rainfall converted to 24 hours, so that the unit of P can correspond to the table 1, and the table lookup is convenient.

And if the current rainfall intensity is judged to exceed the rainfall attenuation threshold, the base station enters a rainfall attenuation mode, and the power adjustment amount and the scheduling adjustment granularity required by the service transmission between the base station and the UE are obtained based on the rainfall intensity interval where the current rainfall intensity is located.

In one possible embodiment, the base station pre-maintains a power control strategy that is subject to rain fade, where the amount of power control adjustment for different channels and signals is shown in table 2 below, it being understood that table 2 below lists the amount of incremental adjustment compared to a normal scenario. In addition, it can be understood that table 2 below only lists examples of power adjustment for some channels and signals related to service transmission, and in practical cases, power adjustment for other channels and signals may also be supported.

Table 2: power regulation

In one possible embodiment, the base station pre-maintains the scheduling adjustment granularity affected by rain fade, wherein the scheduling adjustment granularity for different channels and/or signals is as shown in table 3 below, and it should be noted that table 3 below lists the incremental adjustment amount compared to the normal scenario. In addition, it should be noted that table 3 below only lists examples of scheduling adjustment for some channels and/or signals, and in practical cases, scheduling adjustment for other channels and/or signals may also be supported.

Table 3: scheduling adjustment granularity

Assuming that the current rainfall intensity is 28mm/24 hours, the current rainfall intensity is 'heavy rain' through table look-up 1, and if the rainfall attenuation threshold is 5mm/24 hours, the current rainfall intensity exceeds the rainfall attenuation threshold, for an uplink service or a downlink service, the base station obtains the power adjustment quantity of the signals and/or the channels required by service transmission through table 2 and performs corresponding power adjustment according to the current rainfall intensity, and obtains the scheduling adjustment granularity of the signals and/or the channels required by service transmission through table 3 and performs corresponding scheduling policy granularity adjustment and the like.

It should be understood that the above tables are only an example of the implementation, and do not specifically limit the embodiments of the present invention; the tables may be directly stored in the base station or stored in the network server, and are acquired by the base station in real time when needed, and the specific acquisition mode is not specifically limited in the embodiment of the present invention.

Therefore, by the method, the base station obtains the power adjustment amount and the scheduling adjustment granularity required by the service transmission between the base station and the UE based on the rainfall intensity interval where the current rainfall intensity is located, and performs the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity, so that the robustness of millimeter wave communication is improved, the communication quality in a rain fade scene is ensured, and the user experience is improved.

Based on the same inventive concept, the embodiment of the present application further provides a base station, configured to perform the method in the foregoing method embodiment.

In an implementation, please refer to fig. 4, which is a schematic diagram of a base station according to an embodiment of the present disclosure. As shown in fig. 4, the serving base station 400 includes an acquisition unit 410 and a processing unit 420.

An obtaining unit 410, configured to obtain a current rainfall intensity. Optionally, the current rainfall intensity is obtained from a weather bureau; or obtaining the current rainfall intensity from a weather service provider.

A processing unit 420, configured to enter a rain fade mode if the current rainfall intensity exceeds a rain fade threshold; the base station is further configured to obtain a power adjustment amount and a scheduling adjustment granularity required by service transmission between the base station and the user equipment based on the rainfall intensity interval where the current rainfall intensity is located; and performing the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity.

Optionally, the processing unit 420 is configured to obtain a CSI-RS power adjustment amount and/or a PDCCH power adjustment amount and/or a MCS order adjustment amount of the PDSCH, which are required by downlink service transmission, based on the rainfall intensity interval where the current rainfall intensity is located;

increasing the CSI-RS power adjustment amount on the basis of the normal power of the CSI-RS to send the CSI-RS to the UE; and performing downlink service transmission with the UE through the PDCCH and the PDSCH according to the CSI reported by the UE, wherein the sending power of the PDCCH is to increase the PDCCH power adjustment amount on the basis of the normal power of the PDCCH, and the MCS of the PDSCH is to reduce the MCS order adjustment amount on the basis of the normal MCS of the PDSCH.

Optionally, the processing unit 420 is further configured to obtain a CCE aggregation level adjustment amount of the PDCCH based on the rainfall intensity interval where the current rainfall intensity is located, and increase the CCE aggregation level adjustment amount of the PDCCH based on the current aggregation level of the CCE of the PDCCH in the downlink service transmission.

As can be understood, for the downlink service, based on the rainfall intensity interval where the current rainfall intensity is located, the processing unit 420 may obtain the quantity of CSI-RS power adjustment and/or the quantity of PDCCH power adjustment and/or the quantity of MSC order adjustment of PDSCH and/or the quantity of CCE aggregation level adjustment of PDCCH required when performing the downlink service.

Optionally, the processing unit is configured to obtain, based on the rainfall intensity interval where the current rainfall intensity is located, a UE uplink power control adjustment amount and/or a PUCCH power adjustment amount and/or an MCS order adjustment amount of a PUSCH required by the uplink service transmission.

The base station further includes a transceiver unit, configured to send the power adjustment amount and the scheduling adjustment granularity to the UE, so that the UE increases a normal uplink power by the uplink power control adjustment amount, increases a normal PUCCH power by the PUCCH power adjustment amount, decreases a normal MCS order of the PUSCH by the MCS order adjustment amount, and then performs uplink service transmission with the base station.

As can be understood, for the uplink service, the processing unit 320 obtains, based on the rainfall intensity interval where the current rainfall intensity is located, the MSC order adjustment amount including, but not limited to, the UE uplink power control adjustment amount and/or the PUCCH power adjustment amount and/or the PUSCH when performing the uplink service.

Optionally, the processing unit is configured to obtain, based on the rainfall intensity interval where the current rainfall intensity is located, a power adjustment amount and a scheduling adjustment granularity required for service transmission between the base station and the UE from a preset correspondence table between the rainfall intensity interval and the power adjustment amount and the scheduling adjustment granularity.

Details of the operations performed by the units may refer to the method embodiments shown in fig. 2 and fig. 3, and are not described herein again.

The division of each unit of the above communication device is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be realized in the form of software called by processor; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling by a processor through software, and part of the units can be realized in the form of hardware.

For example, the functions of the above units may be stored in a memory in the form of program codes, which are scheduled by a processor to implement the functions of the above units. The Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, the above units may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, in combination with the above two methods, part of the functions is implemented in the form of a scheduler code of the processor, and part of the functions is implemented in the form of a hardware integrated circuit. And when the above functions are integrated together, the functions can be realized in the form of a system-on-a-chip (SOC).

In another implementation, please refer to fig. 5, which is a schematic diagram of another base station provided in the embodiment of the present application. As shown in fig. 5, the serving base station 500 includes a processor 510 and a transceiver 520. In the downlink direction, the processor 510 generates data or signaling and transmits the same to the UE through the antenna using the transceiver 520. In the uplink direction, the processor 510 receives data of the UE through the antenna by using the transceiver 520 for processing. The serving base station 500 further comprises an interface 530 for communicating with a network server or a neighbouring base station.

In yet another implementation, the present application further provides a network base station, which includes a processor, configured to call a program stored in a memory, so as to implement the millimeter wave communication method.

Based on the same inventive concept, embodiments of the present application also provide a program product, such as a computer-readable storage medium, which includes program code, when called by a processor, causes the processor to implement the above millimeter wave communication method.

Those skilled in the art will understand that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the above program may be stored in a computer readable storage medium, where the program codes are called by a processor, and the processor is used to execute the method executed by the serving base station in the above method embodiments. The embodiment of the present application does not limit the form and number of the memory and the processor, for example, the memory may be a CPU or other processor capable of calling a program, and the memory may be various media capable of storing program codes, such as a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A method of millimeter wave communication, the method comprising:

the base station acquires the current rainfall intensity;

if the current rainfall intensity exceeds a rain attenuation threshold, the base station enters a rain attenuation mode;

based on the rainfall intensity interval where the current rainfall intensity is located, the base station acquires power adjustment amount and scheduling adjustment granularity required by service transmission between the base station and User Equipment (UE);

and the base station transmits the service with the UE according to the power adjustment amount and the scheduling adjustment granularity.

2. The method of claim 1, wherein the traffic transmission is a downlink traffic transmission, wherein the power adjustment comprises a CSI-RS power adjustment, a PDCCH power adjustment, and wherein the scheduling adjustment granularity comprises a MCS (modulation coding scheme) order adjustment of a PDSCH (physical downlink shared channel);

the base station performs the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity, including:

the base station increases the CSI-RS power adjustment amount on the basis of the normal power of the CSI-RS to send the CSI-RS to the UE, and the CSI-RS is used for CSI measurement and reporting of the UE;

and the base station transmits the downlink service with the UE through the PDCCH and the PDSCH according to the CSI reported by the UE, wherein the sending power of the PDCCH is to increase the PDCCH power adjustment amount on the basis of the normal power of the PDCCH, and the MCS of the PDSCH is to reduce the MCS order adjustment amount on the basis of the normal MCS of the PDSCH.

3. The method of claim 2, wherein the scheduling adjustment granularity further comprises a Control Channel Element (CCE) aggregation level adjustment amount of the PDCCH, and wherein the base station increases the CCE aggregation level adjustment amount of the PDCCH based on a current aggregation level of CCEs of the PDCCH in performing the downlink traffic transmission.

4. The method of claim 1, wherein the traffic transmission is an uplink traffic transmission, the power adjustment amount comprises an uplink power control adjustment amount of the UE, a Physical Uplink Control Channel (PUCCH) power adjustment amount, and the scheduling adjustment granularity comprises a Modulation and Coding Scheme (MCS) order adjustment amount of a Physical Uplink Shared Channel (PUSCH);

and the base station sends the power adjustment amount and the scheduling adjustment granularity to the UE so that the UE increases the normal uplink power by the uplink power control adjustment amount, increases the normal PUCCH power by the PUCCH power adjustment amount, reduces the normal MCS order of the PUSCH by the MCS order adjustment amount, and then performs uplink service transmission with the base station.

5. The method according to any one of claims 1 to 4, wherein the obtaining, by the base station, the power adjustment amount and the scheduling adjustment granularity required for the traffic transmission between the base station and the UE based on the rainfall intensity interval in which the current rainfall intensity is located includes:

and acquiring the power adjustment amount and the scheduling adjustment granularity required by the service transmission of the base station and the UE from a preset corresponding relation table of the rainfall intensity interval, the power adjustment amount and the scheduling adjustment granularity on the basis of the rainfall intensity interval where the current rainfall intensity is located.

6. The method of claim 1, wherein the base station obtaining the current rainfall intensity comprises:

the base station acquires the current rainfall intensity from a weather bureau; or

And the base station acquires the current rainfall intensity from a weather service provider.

7. A base station, characterized in that the base station comprises: an acquisition unit and a processing unit;

the acquisition unit is used for acquiring the current rainfall intensity;

the processing unit is configured to enter a rain fade mode by the base station if the current rainfall intensity exceeds a rain fade threshold;

the processing unit is further configured to obtain a power adjustment amount and a scheduling adjustment granularity required by service transmission between the base station and the user equipment UE based on the rainfall intensity interval where the current rainfall intensity is located;

the processing unit is further configured to perform the service transmission with the UE according to the power adjustment amount and the scheduling adjustment granularity.

8. The base station according to claim 7, wherein the processing unit is configured to obtain, based on the rainfall intensity interval where the current rainfall intensity is located, a channel state information reference signal CSI-RS power adjustment amount, a physical downlink control channel PDCCH power adjustment amount, and a modulation and coding scheme, MCS, order adjustment amount for a physical downlink shared channel, PDSCH, required for downlink service transmission between the base station and the user equipment UE;

increasing the CSI-RS power adjustment amount on the basis of the normal power of the CSI-RS to send the CSI-RS to the UE, wherein the CSI-RS is used for CSI measurement and reporting of the UE; and performing downlink service transmission with the UE through the PDCCH and the PDSCH according to the CSI reported by the UE, wherein the sending power of the PDCCH is to increase the PDCCH power adjustment amount on the basis of the normal power of the PDCCH, and the MCS of the PDSCH is to reduce the MCS order adjustment amount on the basis of the normal MCS of the PDSCH.

9. The base station of claim 8, wherein the processing unit is further configured to obtain a CCE aggregation level adjustment amount of the PDCCH based on a rainfall intensity interval in which the current rainfall intensity is located, and increase the CCE aggregation level adjustment amount of the PDCCH based on a current aggregation level of CCEs of the PDCCH in the downlink traffic transmission.

10. The base station according to claim 7, wherein the processing unit is configured to obtain, based on the rainfall intensity interval where the current rainfall intensity is located, the UE uplink power control adjustment amount and the physical uplink control channel PUCCH power adjustment amount required for uplink service transmission between the base station and the user equipment UE, and the modulation and coding scheme MCS order adjustment amount of the physical uplink shared channel PUSCH;

the base station further comprises a transceiver unit configured to: and sending the power adjustment amount and the scheduling adjustment granularity to the UE so that the UE increases the normal uplink power by the uplink power control adjustment amount, increases the normal PUCCH power by the PUCCH power adjustment amount, reduces the normal MCS order of the PUSCH by the MCS order adjustment amount, and then performs uplink service transmission with the base station.

11. The base station according to any one of claims 7 to 10, wherein the processing unit is configured to obtain, based on the rainfall intensity interval in which the current rainfall intensity is located, a power adjustment amount and a scheduling adjustment granularity required for service transmission between the base station and the UE from a preset correspondence table between the rainfall intensity interval and the power adjustment amount and the scheduling adjustment granularity.

12. The base station of claim 7, wherein the obtaining unit is configured to obtain the current rainfall intensity from a weather bureau; or

And acquiring the current rainfall intensity from a weather service provider.