Method performed by network side device in wireless communication network and network side device

Abstract

To provide a method executed by a network side device that achieves optimal power saving effects and a corresponding network side device and wireless communication method.SOLUTION: In a wireless communication network, a processing unit of a network side device determines a power saving level for the network side device based on a predicted traffic volume and a predetermined power saving level table. The power saving level table includes a plurality of power saving levels corresponding to a wireless transmission capability of the network side device and a combination of resources used by the network side device during wireless transmission. The combination of resources is a combination of at least two resources among the plurality of resources, and is determined based on a priority during a power saving operation of each of the at least two resources. A control unit of the network side device executes the power saving operation according to the determined power saving level.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to the field of wireless communication, and more particularly to a method performed by a network side device in a wireless communication network, and a corresponding network side device. [Background technology]

[0002] Wireless communication network systems have been widely deployed to provide various types of communication content, such as voice, video, grouped data, message transmission, broadcast, and the like. A typical wireless communication network system may employ multiple access technologies that can support communication with multiple communication devices by sharing available system resources (e.g., bandwidth, transmission power, and the like). Examples of such multiple access technologies include Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and Long Term Evolution (LTE). LTE / LTE-Advanced (LTE-Advanced) is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard released by 3GPP.

[0003] A wireless communication network system may include multiple network side devices, for example multiple base stations. Each base station may simultaneously support communication with multiple communication devices, which may be referred to as user equipment (UE). The UE may communicate with the base station via a downlink and an uplink. The downlink refers to the communication link from the base station to the UE, and the uplink refers to the communication link from the UE to the base station.

[0004] Since a base station needs to communicate with multiple UEs, it consumes a large amount of power. In the current carbon neutrality environment, reducing the power consumption of base stations is an urgent issue. Summary of the Invention

[0005] In response to the above problems, according to one aspect of the present disclosure, a network side device in a wireless communication network is provided, the network side device including: a processing unit that determines a power saving level for the network side device based on a predicted traffic volume and a predetermined power saving level table, the power saving level table including a plurality of power saving levels corresponding to a wireless transmission capability of the network side device and a combination of resources used by the network side device during wireless transmission, the combination of resources being a combination of at least two resources among a plurality of resources, the combination of resources being determined based on a priority during a power saving operation of each of the at least two resources; and a control unit configured to perform the power saving operation according to the determined power saving level.

[0006] According to one aspect of the present disclosure, there is provided a wireless communication method for use in a network side device, comprising: determining a power saving level for the network side device based on a predicted traffic volume and a predetermined power saving level table, the power saving level table including a plurality of power saving levels corresponding to a wireless transmission capability of the network side device and a combination of resources used by the network side device during wireless transmission, the combination of resources being a combination of at least two resources among a plurality of resources, the combination of resources being determined based on a priority during a power saving operation of each of the at least two resources; and performing the power saving operation in accordance with the determined power saving level.

[0007] According to the network side equipment and method according to the above aspect of the present disclosure, a power saving level for the network side equipment is accurately determined based on the predicted traffic volume and a predetermined more refined power saving level table, so that the network side equipment can accurately select the power saving level, and when operating according to the determined power saving level, it can turn off some resources of the component carrier instead of turning off the entire component carrier in order to reserve only the minimum resources for transmitting the required traffic volume, thereby achieving the best power saving effect.

[0008] The above and other objects, features and advantages of the present disclosure will become more apparent by describing the embodiments of the present disclosure in more detail with reference to the accompanying drawings. The accompanying drawings are used for a better understanding of the embodiments of the present disclosure, and are used to explain the present disclosure together with the embodiments of the present disclosure, and constitute a part of the specification and are not intended to limit the present disclosure. In the drawings, similar reference numerals generally represent the same parts or steps. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 shows a flowchart of a wireless communication method used in a network side device according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 shows a schematic diagram of a sequence for turning off resources according to an embodiment of the present disclosure. [Diagram 3] FIG. 3 shows a schematic diagram of a sequence for turning off resources according to an embodiment of the present disclosure. [Figure 4] FIG. 4 illustrates a block diagram of a network side device 400 in a wireless communication network according to an embodiment of the present disclosure. [Diagram 5] FIG. 5 is a block diagram illustrating an example of a hardware structure of a network side device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, exemplary embodiments according to the present disclosure are described in detail below with reference to the accompanying drawings, in which like reference numerals represent like elements throughout. It should be understood that the embodiments described in the present disclosure are merely illustrative and should not be construed as limiting the scope of the present disclosure.

[0011] Since a base station needs to communicate with a large number of UEs, a large amount of power is consumed in the base station. In order to save the power consumption in the base station, several power saving methods for the base station have been proposed. In these power saving methods, some or all of the carriers (e.g., in the case of Carrier Aggregation (CA), some or all of the Component Carriers (CCs)) need to be turned off at once. Such a turning-off method not only has a low power saving effect, but may also affect the user's network experience (e.g., when the traffic volume increases suddenly, the base station turns off the entire CC through a power saving operation).

[0012] In order to solve the above problems, the present disclosure provides a wireless communication method for a network side device such as a base station, in which, when a power saving operation is required, a more sophisticated power saving operation is performed by first turning off some resources in the CC, instead of turning off the entire CC, based on a more sophisticated energy saving (ES) level table. Hereinafter, the wireless communication method for a network side device provided by one embodiment of the present disclosure and the corresponding network side device will be described in detail with reference to the accompanying drawings.

[0013] FIG. 1 shows a flow chart of a wireless communication method used in a network side device according to an embodiment of the present disclosure. The method shown in FIG. 1 can be performed by the network side device. As an example, the network side device may be a base station. Alternatively, the network side device may be an Operation Administration and Maintenance (OAM) module or a Service Management and Orchestration (SMO) module outside the base station that interacts with the base station. If the network side device is the above-mentioned OAM or SMO module, the OAM or SMO module needs to transmit information about the power saving level obtained by performing the method provided by the present disclosure and resource information corresponding to the power saving level to the base station, etc., and the base station performs the corresponding power saving operation.

[0014] Referring to FIG. 1, in step S110, the network side device determines a power saving level for the network side device based on a predicted traffic volume and a predetermined power saving level table, the power saving level table including a plurality of power saving levels corresponding to a wireless transmission capability of the network side device and a combination of resources used by the network side device during wireless transmission, the combination of resources being a combination of at least two resources among a plurality of resources, and further, the combination of resources is determined based on a priority during power saving operation of each resource among the at least two resources.

[0015] In one example according to the present disclosure, the predicted traffic volume may be a traffic volume corresponding to a first future time period, thereby allowing for a better prediction of traffic volume for the future time period.

[0016] By way of example, the time period may be in hours or minutes. For example, the time period may be 1 hour or 2 hours. Alternatively, the time period may be 15 minutes or 30 minutes.

[0017] The first future time period may be a specific time period in the future to be predicted. For example, the first future time period may be the next time period immediately following the current time. For example, if the current time is 12:00, the first future time period may be from 13:00 to 14:00. As another example, the first future time period may be a time period a predetermined time period away from the current time, for example, if the current time is 12:00, the first future time period may be from 15:00 to 16:00, two hours later.

[0018] The traffic volume corresponding to the first future time slot may be a traffic volume obtained based on a conventional traffic volume prediction method. The network side device may obtain the obtained traffic volume in real time or at a preset time. The network side device may determine the traffic volume corresponding to the first future time slot as the predicted traffic volume.

[0019] The interference level in the first future time slot may be based on a signal to interference plus noise ratio (SINR) obtained when generated in the first future time slot. The interference level can be obtained via the network side equipment based on the UEs communicating therewith. When the network side equipment communicates with a plurality of UEs, the interference level may be determined based on the SINRs of the plurality of UEs, for example, by calculating the sum or average value of the SINRs of the UEs. The network side equipment can obtain the interference level in real time or at a preset time. The obtained interference level corresponds to a traffic volume corresponding to the first future time slot. The network side equipment can determine the traffic volume corresponding to the interference level as the predicted traffic volume.

[0020] In one example according to the present disclosure, the plurality of resources may include at least two of a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, and a component resource of a network side device. Thus, the method provided by the present invention can comprehensively consider all conventional resources to facilitate a better subsequent power saving operation. As an example, the time domain resource may include resources such as a subframe, a slot, a mini-slot, a symbol, etc. associated with a carrier. The frequency domain resource may include resources such as a portion of a carrier-related bandwidth (Band width, BW), a subband, a reference signal group, a subcarrier group, etc. The spatial domain resource may include resources such as a carrier-related antenna element, a transmit / receive unit (TxRU), a virtual antenna port, etc. The power domain resource may include resources required to adjust at least one of the maximum transmission power, power spectral density (PSD), etc. of one or more channels associated with a carrier, such as transmitted data (Data), control (Control), Reference Signal (RS), Synchronization Signal Block (SSB), etc. The component resource of the network side device may be a hardware or software component resource, such as a radio frequency module, a power amplifier module, a digital baseband module, etc., used when the network side device uses the time domain resource, the frequency domain resource, the spatial domain resource, or the power domain resource.

[0021] In one example according to the present disclosure, the combination of resources may be a combination of at least two of the above-mentioned time domain resources, frequency domain resources, spatial domain resources, power domain resources, and component resources of the network side equipment.

[0022] In one example according to the present disclosure, the priority is determined by at least one of a power consumption level, an energy efficiency, a coverage range, and a speed of turning off components of the network side device corresponding to each of the at least two resources corresponding to a second past time period, the second past time period being earlier than the first future time period. Thus, the method provided by the present disclosure can comprehensively determine a priority based on resource data of a past time period, thereby facilitating better power saving operations thereafter.

[0023] As an example, the second past time period may be a past time period that is earlier than the first future time period.

[0024] The power consumption level corresponding to each resource may be a power consumption level corresponding to a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, or a component resource of a network side device. The power consumption level corresponding to each resource may indicate the power that the network side device can save when the resource is turned off, that is, reflects the power consumption corresponding to the resource. The higher the priority of a resource with high power consumption, the higher the power consumption resource will be turned off first in the subsequent power saving operation. For example, the total power consumption including the time domain resource, the frequency domain resource, the spatial domain resource, and the power domain resource can be expressed by the following formula (1).

number

[0025] P 合計represents the total power consumption. 55 and A are the basic power consumption of the network side device, A is a positive number less than 1, and the specific value of A is usually related to the device manufacturer of the network side device. S a represents the power consumption coefficient corresponding to the spatial domain resource. S f represents the power consumption coefficient corresponding to the frequency domain resource. S p represents the power consumption coefficient corresponding to the power domain resource. From the above formula (1), it can be seen that the spatial domain resource has the highest priority, and the frequency domain resource and the power domain resource have equal priority. Considering that the power domain resource is related to the transmission power of the network side device, turning off the power domain resource may affect the coverage. Therefore, during actual operation, the off priorities of the spatial domain resource, the frequency domain resource, and the power domain resource are, from high to low, the spatial domain resource, the frequency domain resource, and the power domain resource, respectively.

[0026] The energy efficiency corresponding to each resource may be the energy efficiency corresponding to a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, or a component resource of a network side device. The energy efficiency corresponding to each resource indicates the energy required to transmit a certain amount of traffic and is recorded as Bit / energy. If the energy required to transmit the certain amount of traffic through the resource is low, it means that the energy efficiency corresponding to the resource is high, and vice versa. A resource corresponding to high energy efficiency has a low priority, and a resource corresponding to low energy efficiency has a high priority. During a subsequent power saving operation, a resource corresponding to low energy efficiency is preferentially turned off. Accordingly, when a resource is turned on, a resource corresponding to high energy efficiency is preferentially turned on.

[0027] The coverage range corresponding to each resource may be a coverage range corresponding to a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, or a component resource of a network side device. The coverage range corresponding to each resource may indicate that after the resource is turned off, the transmission rate of the UE within a predetermined range covered by the network side device can reach a certain level, or the reception power of the UE can reach a certain level. For example, after the power domain resource is turned off, the reception power of the UE within a predetermined range of 100 m covered by the base station may not reach the minimum level at which a signal can be received, and the priority corresponding to the power resource is low. In subsequent power saving operations, the power resource cannot be turned off preferentially. As another example, after the frequency domain resource is turned off, the reception power of the UE within a predetermined range of 100 m covered by the base station can still reach at least the minimum level at which a signal can be received, and the priority corresponding to the frequency domain resource is high. In subsequent power saving operations, the frequency domain resource can be turned off preferentially. The coverage range corresponding to each resource may also indicate the size of the carrier frequency corresponding to the resource. When the carrier frequency corresponding to the resource is high, the priority corresponding to the resource is high. When the carrier frequency corresponding to the resource is low, the priority corresponding to the resource is low. During the subsequent power saving operation, the resource with the high priority is turned off first.

[0028] The speed of turning off the component of the network side device corresponding to each resource may be the speed of turning off the component of the network side device corresponding to the time domain resource, the frequency domain resource, the spatial domain resource, the power domain resource, or the component resource of the network side device. The speed of turning off the component of the network side device corresponding to each resource can indicate the speed at which the network side device turns off the component corresponding to the time domain resource, the frequency domain resource, the spatial domain resource, the power domain resource, or the component resource of the network side device. When a specific service has a speed requirement, the priority of the resource corresponding to a fast turning off speed is high. During the subsequent power saving operation, the resource with the high priority is turned off preferentially.

[0029] The above priority examples will be explained in more detail in later examples and will not be repeated here.

[0030] In an example according to the present disclosure, the predetermined power saving level table may be one power saving level table predetermined from a plurality of power saving level tables based on a first future time slot. Thus, the method provided by the present disclosure can directly determine the power saving level table based on the first future time slot, which is convenient and simple. Moreover, determining the power saving level table based on the first future time slot actually means determining the power saving level table based on the traffic volume in the first future time slot.

[0031] In an example according to the present disclosure, the predetermined power saving level table may further be a power saving level table predetermined from a plurality of power saving level tables based on an interference level in a first future time period, so that the method provided by the present disclosure can jointly determine a more accurate power saving level table based on the first future time period and the interference level, thereby optimizing subsequent power saving operations.

[0032] As an example, a plurality of power saving level tables can be determined in advance, and a method for determining the plurality of power saving level tables will be described in detail later with examples, and will not be described again here.

[0033] Each of the multiple power saving level tables corresponds to a specific CC, and can indicate a total wireless transmission capability value of the CC, as shown in Table 1 below. When multiple CCs, for example two CCs, exist in the network side device, there may be a power saving level table corresponding to CC1 and a power saving level table corresponding to CC2. Table 1 below may be a power saving level table corresponding to CC1, and a wireless transmission capability value A1 corresponding to ES8 when transmitting data using all resources can indicate the total wireless transmission capability value of the CC1. [Table 1]

[0034] In Table 1, the ES level is divided into eight levels, ES1 to ES8. Alternatively, the ES level can be divided into any number of levels according to actual needs. port represents a virtual antenna port of the spatial domain resource. As can be seen from Table 1, the network side device has a total of two ports. BW represents a partial bandwidth of the frequency domain resource, and BW / 2 represents only retaining half of the partial bandwidth. P represents a resource corresponding to the PSD in the power domain resource. P / 2 represents only retaining half of the resource.

[0035] In Table 1, the power saving levels ES1 to ES8 may be in the order of ES1, ES2, ES3, ES4, ES5, ES6, ES7, and ES8 from high to low. The power saving level ES1 may indicate that the energy consumption in the network side device is the lowest. The power saving level ES8 may indicate that the energy consumption in the network side device is the highest. The power saving levels ES2 to ES7 may indicate that the energy consumption level in the network side device is between ES1 and ES8. Alternatively, other methods for indicating the level of energy consumption in the network side device may be designed.

[0036] The resources in Table 1 may indicate resources used by the network side device during wireless transmission, for example, at least two of a time domain resource, a frequency domain resource, a spatial domain resource, and a power domain resource.

[0037] The radio transmission capabilities in Table 1 may indicate the radio transmission capabilities of the network side equipment when using the corresponding resources. As an example, the transmission capabilities of the network side equipment may be a fitting capability value determined based on past data, such as a fitting value determined based on a function related to port, BW, P, and component resources. The function may be a maximum function, a cumulative distribution function (CDF), or the like. For example, the transmission capabilities of the network side equipment may be a maximum value, an average value, a weighted average value, or the like of the amount of data transmitted by the network side equipment in a past time period. For example, the transmission capabilities of the network side equipment may be a maximum value or a weighted average value of the amount of data transmitted by a CC per unit time in a past time period. As another example, the transmission capabilities of the network side equipment may be a product of an average value of the transmission rates of all UEs under a specific CC in a past time period and the bandwidth of the specific CC. As another example, the transmission capabilities of the network side equipment may be a maximum rate of a CC in a specific Modulation and Coding scheme (MCS) or rank number. As another example, the transmission capacity of the network side device may be the ratio of the amount of data actually transmitted to the resource usage rate. When calculating the wireless transmission capacity, noise in the acquired data can be removed, such as removing singular points.

[0038] As an example, the plurality of power-saving level tables may include a power-saving level table corresponding to each time of 24 hours in a day. In this case, a corresponding power-saving level table can be selected based on the first future time period. For example, if the first future time period is the time period 15:00 to 16:00, a power-saving level table corresponding to the time period 15:00 to 16:00 can be searched for from the plurality of power-saving level tables. If the network side device has a plurality of CCs, a plurality of power-saving level tables are found. For example, if the network side device has two CCs, a power-saving level table corresponding to CC1 in the time period 15:00 to 16:00 and a power-saving level table corresponding to CC2 are found.

[0039] As another example, each of the above power saving level tables may have a corresponding interference level range. In this case, a power saving level table may be determined based on the obtained interference level and the interference level range. For example, if the obtained interference level is within the interference level range corresponding to the power saving level table, the power saving level table may be determined as the predetermined power saving level table.

[0040] Continuing to refer to FIG. 1, in step S120, the network side device may perform a power saving operation according to the determined power saving level.

[0041] As an example, if there is only one CC in the network side device, then, for example, the determined power saving level table may be Table 1 above, and based on the predicted traffic volume and Table 1 above, it can be determined that the power saving level applied at the first time is ES4 in Table 1 above, and the network side device can perform a power saving operation based on ES4. Specifically, the resource combination corresponding to ES4 is 1port+BW+P, which means that half of the spatial domain resources corresponding to the CC are preferentially turned off, and there is no need to turn off the frequency domain and power domain resources corresponding to the CC. In this case, the network side device can randomly turn off half of the spatial domain resources, and preferentially turn off the spatial domain resources with no traffic volume. If there is still traffic volume in the spatial domain resources that should be turned off, the traffic volume can be introduced into other spatial domain resources that do not need to be turned off, and then the spatial domain resources that should be turned off can be turned off.

[0042] As another example, when there are multiple CCs in the network side device, for example, there are two CCs (i.e., CC1 and CC2), the above Table 1 corresponding to CC1 and the above Table 1 similar to the above Table 1 and corresponding to CC2 can be obtained. Assuming that the carrier frequency of CC2 is higher than that of CC1, the coverage range of CC1 is wider than that of CC2, and the coverage range is used as an index for determining the priority, and the resource with the small impact on the coverage is preferentially turned off. At this time, as shown in FIG. 2, the resource corresponding to CC2 is preferentially turned off (the method of turning off is the same as the previous example, and will not be repeated here), and then, after turning off the resource corresponding to CC2, if the requirement is still not met, the resource corresponding to CC1 can be subsequently turned off. In FIG. 2, CC1 and CC2 respectively indicate the combination of two resources. The order of turning off the resources is from top to bottom.

[0043] Selectively, as shown in Fig. 3, a part of resources corresponding to CC2 is turned off first, and then resources corresponding to CC1 are turned off. In Fig. 3, CC1 and CC2 respectively indicate two combinations of resources. The order of turning off the resources is from top to bottom.

[0044] The method provided by the present disclosure has been described in detail above in conjunction with Figures 1 to 3. In the above method provided by the present disclosure, a power saving level for a network side device is accurately determined based on a predicted traffic volume and a predetermined refined power saving level table, so that the network side device can accurately select a power saving level, and when operating according to the determined power saving level, it can turn off some resources of the CC instead of turning off the whole CC to reserve only the minimum resources for transmitting the required traffic volume, thereby achieving the best power saving effect.

[0045] Next, in order to better understand the above method provided by the present disclosure, some examples will be used to illustrate the multiple power saving level tables and priorities described above in conjunction with FIGS. 1-3.

[0046] First, an example will be given to explain how to determine a plurality of power saving level tables.

[0047] The plurality of power saving level tables can be determined based on historical traffic volume and corresponding resources.

[0048] For example, you can obtain the hourly traffic volume and corresponding resources for all past days, as shown in Table 2 below. [Table 2]

[0049] In Table 2, traffic volume 1 can represent the amount of traffic that the network side device can achieve by using the frequency domain resource BW associated with CC1, one port of the spatial domain resource, and the power domain resource P1 to communicate with the UE. SINR (7.5 dB) indicates the interference level at this time. Traffic volume 2 can represent the amount of traffic that the network side device can achieve by using the frequency domain resource BW / 2 associated with CC2, two ports of the spatial domain resource, and the power domain resource P2 to communicate with the UE. SINR (13.1 dB) indicates the interference level at this time. Similarly, the meaning of traffic volume N will not be repeated.

[0050] After obtaining the traffic volume for each hour of all past days and the corresponding resources, for example, a power saving level table corresponding to each hour to be used in the future can be created. For example, if a power saving level table corresponding to 12:00-13:00 noon to be used in the future is to be created, the traffic volume corresponding to 12:00-13:00 noon for all past days and the corresponding resources can be filtered from the traffic volume for each hour of all past days and the corresponding resources obtained above. Then, according to the resource turn-off priority described above with reference to Figs. 1-3, the table shown in Table 1 above can be obtained. Optionally, when the SINR is obtained, the interference level range corresponding to the above Table 1 can be determined by statistically analyzing the SINR. For example, the following Table 3 can be obtained. [Table 3]

[0051] By inputting the specific values ​​obtained in Table 3 above, for example, the following Tables 4 to 7 are obtained. [Table 4] [Table 5] [Table 6] [Table 7]

[0052] Even if the interference level is not taken into consideration, a power saving level table such as that shown in Table 1 above can be obtained for each time period. In this case, based on the first future time period, a predetermined power saving level table corresponding to the first future time period can be obtained.

[0053] Considering only the interference level, it is possible to determine a power saving level table corresponding to each interference level range. In this case, it is possible to determine a power saving level table based on the obtained interference level and the above interference level range. For example, if the obtained interference level is within the interference level range corresponding to the power saving level table, the power saving level table can be determined as the predetermined power saving level table. For example, if the interference level obtained by the network side device is 9.2 dB, it is possible to determine that Table 5 is the required predetermined power saving level table by comparing 9.2 dB with the interference level ranges of Tables 4 to 7 above.

[0054] When considering both the time period and the interference level, first, multiple power saving level tables (such as Tables 4 to 7 above) corresponding to the first future time period can be selected according to the time period (the above-mentioned first future time period), and then, the required predetermined power saving level table is determined from the multiple power saving level tables via the obtained interference level.

[0055] When the above power saving level tables 4 to 7 are specifically used, the matching method between the predicted traffic volume and the wireless transmission capabilities of tables 4 to 7 is bottom-up matching. For example, when using the above table 4, assuming that the predicted traffic volume is 5716, in table 4, when matching from bottom up, it matches with ES3, does not match continuously upward, and does not use ES4, ES6, or ES7, etc. In this way, the power saving effect can be optimized.

[0056] The method of determining the multiple power saving level tables has been described in detail above with reference to Tables 2 to 7. Next, an example of the priority order will be described.

[0057] Table 8 below shows time domain resources, frequency domain resources, spatial domain resources, power domain resources, or component resources of a network side device corresponding to a single CC. [Table 8]

[0058] In Table 8, the last row represents all resources that use that single CC.

[0059] Regarding the power consumption level, when half of the resources are turned off, the power consumption changes as follows: P5>P4>P3≒P2≒P1. In this case, the resource with the highest power consumption is turned off first, and the order of turning off the resources of the CC is spatial domain > power domain = frequency domain.

[0060] In the case of the coverage range, when half of the resources are turned off, the coverage range changes as follows: C1 = C2 > C4 > C3. In this case, the resources that do not affect the coverage are turned off preferentially, and the order of turning off the resources of the CC is time domain or frequency domain > spatial domain > power domain.

[0061] Regarding the speed of turning off the components, the magnitude of the speed of turning off is T4>T3=T2=T1. In this case, if speed is considered as a priority, the faster resource can be turned off first, that is, the order of turning off the resources of the CC is time domain, frequency domain or power domain > spatial domain.

[0062] Regarding the above power consumption levels, by substituting specific values ​​into the above formula (1), the power consumption levels calculated can be shown in Table 9 below. [Table 9]

[0063] In Table 9, for simplicity, the base power consumption (i.e., the value 55 in equation (1)) has not been added.

[0064] In Table 9, P2=225*s f *s p *(1-A) is when all spatial domain resources are used (i.e., s a = 1). When only the power consumption level of the frequency domain resource is considered, the power domain resource is fully used, i.e., s p = 1. Next, assuming A is equal to 0.4, the power level to turn off half the frequency range, as shown on the far right, is calculated to be 67.5.

[0065] P3=225*s f *s p *(1-A) is when all spatial domain resources are used (i.e., s a = 1). When only the power consumption level of the frequency domain resource is considered, the power domain resource is fully used, i.e., s f = 1. Next, assuming A is equal to 0.4, the power level that turns off half the power domain, as shown on the far right, is calculated to be 67.5.

[0066] P4=225*s a *(A+s f *s p *(1-A)) represents the power consumption level corresponding to the spatial domain resource. When considering only the power consumption level of the spatial domain resource, the power domain resource and the frequency domain resource are all used, i.e., s p =1 and s f = 1. Next, assuming A is equal to 0.4, the power level to turn off half of the spatial region, as shown on the far right, is calculated to be 112.5.

[0067] From the above calculation results, it can be seen that the power consumption level of spatial domain resources is the highest, and the power consumption levels of frequency domain resources and power domain resources are equivalent.

[0068] The wireless communication method used in the network side device provided by the present disclosure has been described above with reference to Figures 1 to 3. Hereinafter, the network side device in the wireless communication network provided by the present disclosure will be described with reference to Figure 4. The network side device 400 shown in Figure 4 corresponds to the wireless communication method used in the network side device described above with reference to Figures 1 to 3, and therefore, for the sake of simplicity, detailed description of the same content will be omitted here.

[0069] FIG. 4 illustrates a block diagram of a network side device 400 in a wireless communication network according to an embodiment of the present disclosure.

[0070] 4, the network side device 400 may include a processing unit 410 and a control unit 420. In this example, the network side device 400 is shown to include a processing unit 410 and a control unit 420. However, it should be understood that the network side device 400 may include other components. However, since these components are not related to the contents of the embodiments of the present disclosure, illustration and description thereof will be omitted here.

[0071] As an example, the network side device 400 may be a base station. Alternatively, the network side device 400 may be the above-mentioned OAM module or SMO module outside the base station that interacts with the base station. If the network side device is the above-mentioned OAM or SMO module, the OAM or SMO module needs to transmit information about the power saving level obtained by performing the method provided by the present disclosure and resource information corresponding to the power saving level to the base station, etc., and perform the corresponding power saving operation by the base station.

[0072] The processing unit 410 is configured to determine a power saving level for the network side device based on the predicted traffic volume and a predetermined power saving level table, the power saving level table including a plurality of power saving levels corresponding to wireless transmission capabilities of the network side device and combinations of resources used by the network side device during wireless transmission, the combination of resources being a combination of at least two resources among a plurality of resources, and the combination of resources being determined based on a priority during power saving operation of each of the at least two resources.

[0073] In one example according to the present disclosure, the predicted traffic volume may be a traffic volume corresponding to a first future time period, thereby allowing for a better prediction of the traffic volume in the future time period.

[0074] By way of example, the time period may be in hours or minutes. For example, the time period may be 1 hour or 2 hours. Alternatively, the time period may be 15 minutes or 30 minutes.

[0075] The first future time period may be a specific time period in the future to be predicted. For example, the first future time period may be the next time period immediately following the current time. For example, if the current time is 12:00, the first future time period may be from 13:00 to 14:00. As another example, the first future time period may be a time period a predetermined time period away from the current time, for example, if the current time is 12:00, the first future time period may be from 15:00 to 16:00, two hours later.

[0076] The traffic volume in the first future time slot may be a traffic volume obtained based on a conventional traffic volume prediction method. The network side device may obtain the obtained traffic volume in real time or at a preset time. The network side device may determine the traffic volume corresponding to the first future time slot as the predicted traffic volume.

[0077] The interference level in the first future time slot may be based on the SINR obtained when generated in the first future time slot. The interference level can be obtained via the network side equipment based on the UEs communicating therewith. When the network side equipment communicates with multiple UEs, the interference level may be determined based on the SINRs of each of the multiple UEs, for example, by calculating the sum or average value of the SINRs of each UE. The network side equipment can obtain the interference level in real time or at a preset time. The obtained interference level corresponds to a traffic volume in the first future time slot. The network side equipment can determine the traffic volume corresponding to the interference level as the predicted traffic volume.

[0078] In one example according to the present disclosure, the plurality of resources may include at least two of a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, and a component resource of a network side device, so that the device provided by the present invention can comprehensively consider all conventional resources to facilitate a better subsequent power saving operation. As an example, the time domain resource may include resources such as a carrier-related subframe, a slot, a mini-slot, a symbol, etc. The frequency domain resource may include resources such as a carrier-related bandwidth portion (BW), a subband, a reference signal group, a subcarrier group, etc. The spatial domain resource may include resources such as a carrier-related antenna element, a transmit / receive unit (TxRU), a virtual antenna port, etc. The power domain resource may include resources required to adjust at least one of the maximum transmission power, power spectral / spectrum density (PSD), etc. of one or more channels, such as transmitted data (Data), control (Control), Reference Signal (RS), Synchronization Signal Block (SSB), etc., associated with a carrier. The component resource of the network side equipment may be a hardware or software component resource, such as a radio frequency module, a power amplifier module, a digital baseband module, etc., used when the network side equipment uses the time domain resource, the frequency domain resource, the spatial domain resource, or the power domain resource.

[0079] In one example according to the present disclosure, the combination of resources may be a combination of at least two of the above-mentioned time domain resources, frequency domain resources, spatial domain resources, power domain resources, and component resources of the network side equipment.

[0080] In one example according to the present disclosure, the priority is determined by at least one of a power consumption level, an energy efficiency, a coverage range, and a speed of turning off components of the network side device corresponding to each of the at least two resources corresponding to a second past time period, the second past time period being earlier than the first future time period, thereby enabling the device provided by the present disclosure to comprehensively determine a priority based on resource data in a past time period, thereby facilitating better power saving operations thereafter.

[0081] As an example, the second past time period may be a past time period that is earlier than the first future time period.

[0082] The power consumption level corresponding to each resource may be a power consumption level corresponding to a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, or a component resource of the network side device. The power consumption level corresponding to each resource may indicate the power that the network side device can save when the resource is turned off, that is, reflects the power consumption corresponding to the resource. The higher the priority of the resource with high power consumption, the higher the power consumption will be turned off first in the subsequent power saving operation.

[0083] The energy efficiency corresponding to each resource may be the energy efficiency corresponding to a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, or a component resource of a network side device. The energy efficiency corresponding to each resource indicates the energy required to transmit a certain amount of traffic and is recorded as Bit / energy. If the energy required to transmit the certain amount of traffic through the resource is low, it means that the energy efficiency corresponding to the resource is high, and vice versa. A resource corresponding to high energy efficiency has a low priority, and a resource corresponding to low energy efficiency has a high priority. During a subsequent power saving operation, a resource corresponding to low energy efficiency is preferentially turned off. Accordingly, when a resource is turned on, a resource corresponding to high energy efficiency is preferentially turned on.

[0084] The coverage range corresponding to each resource may be a coverage range corresponding to a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, or a component resource of a network side device. The coverage range corresponding to each resource may indicate that after the resource is turned off, the transmission rate of the UE within a predetermined range covered by the network side device can reach a certain level, or the reception power of the UE can reach a certain level. For example, after turning off a power domain resource, the reception power of the UE within a predetermined range of 100 m covered by the base station may not reach the lowest level at which a signal can be received, and the priority corresponding to the power domain resource is low. In subsequent power saving operations, the power domain resource cannot be turned off preferentially. As another example, after turning off a frequency domain resource, the reception power of the UE within a predetermined range of 100 m covered by the base station can still reach the lowest level at which a signal can be received, and the priority corresponding to the frequency domain resource is high. In subsequent power saving operations, the frequency domain resource can be turned off preferentially. The coverage range corresponding to each resource may also indicate the magnitude of the carrier frequency corresponding to the resource. When the carrier frequency corresponding to the resource is high, the priority corresponding to the resource is high. When the carrier frequency corresponding to the resource is low, the priority corresponding to the resource is low. During the subsequent power saving operation, the resource with the high priority is turned off first.

[0085] The speed at which the network side device turns off the component corresponding to each resource may be the speed at which the network side device turns off the component corresponding to the time domain resource, the frequency domain resource, the spatial domain resource, the power domain resource, or the component resource of the network side device. The speed at which the network side device turns off the component corresponding to each resource can indicate the speed at which the network side device turns off the component corresponding to the time domain resource, the frequency domain resource, the spatial domain resource, the power domain resource, or the component resource of the network side device. When a specific service has a speed requirement, the resource with a faster turning off speed has a higher priority. During the subsequent power saving operation, the resource with a higher priority is turned off preferentially.

[0086] In an example according to the present disclosure, the predetermined power saving level table may be one power saving level table predetermined from a plurality of power saving level tables based on the first future time slot. In this way, the device provided by the present disclosure can directly determine the power saving level table based on the first future time slot, which is convenient and simple. Note that determining the power saving level table based on the first future time slot actually means determining the power saving level table based on the traffic volume in the first future time slot.

[0087] In an example according to the present disclosure, the predetermined power saving level table may be a power saving level table that is predetermined from a plurality of power saving level tables based on an interference level in a first future time period, so that the devices provided by the present disclosure can jointly determine a more accurate power saving level table based on the first future time period and the interference level, thereby optimizing subsequent power saving operations.

[0088] As an example, multiple power saving level tables can be pre-determined.

[0089] As shown in Table 1 above, each of the multiple power saving level tables corresponds to a specific CC and can indicate the total wireless transmission capability value of the CC. When there are multiple CCs, for example, two CCs, in the network side device, there may be a power saving level table corresponding to CC1 and a power saving level table corresponding to CC2. The above Table 1 may be a power saving level table corresponding to CC1, and when all resources are used to transmit data, the wireless transmission capability value A1 corresponding to ES8 can indicate the total wireless transmission capability value of the CC1.

[0090] In Table 1, the ES level is divided into eight levels, ES1 to ES8. Alternatively, the ES level can be divided into any number of levels according to actual needs. port represents the virtual antenna port of the spatial domain resource. As can be seen from Table 1, the network side device has a total of two ports. BW represents the partial bandwidth of the frequency domain resource, and BW / 2 represents only retaining half of the partial bandwidth. P represents the resource corresponding to the PSD in the power domain resource. P / 2 represents only retaining half of the resource.

[0091] In Table 1, the power saving levels ES1 to ES8 may be in the order of ES1, ES2, ES3, ES4, ES5, ES6, ES7, and ES8 from high to low. The power saving level ES1 may indicate that the energy consumption in the network side device is the lowest. The power saving level ES8 may indicate that the energy consumption in the network side device is the highest. The power saving levels ES2 to ES7 may indicate that the energy consumption level in the network side device is between ES1 and ES8. Alternatively, other methods for indicating the level of energy consumption in the network side device may be designed.

[0092] The resources in Table 1 may indicate resources used by the network side device during wireless transmission, for example, at least two of a time domain resource, a frequency domain resource, a spatial domain resource, and a power domain resource.

[0093] The radio transmission capabilities in Table 1 may indicate the radio transmission capabilities of the network side equipment when using the corresponding resources. As an example, the transmission capabilities of the network side equipment may be a fitting capability value determined based on past data, for example, a fitting value determined based on a function related to port, BW, P, and component resources. The function may be a maximum function, a cumulative distribution function (CDF), or the like. For example, the transmission capabilities of the network side equipment may be a maximum value, an average value, a weighted average value, or the like of the amount of data transmitted by the network side equipment in the past time period. For example, the transmission capabilities of the network side equipment may be a maximum value or a weighted average value of the amount of data transmitted by the CC per unit time in the past time period. As another example, the transmission capabilities of the network side equipment may be a product of an average value of the transmission rates of all UEs under a specific CC in the past time period and the bandwidth of the specific CC. As another example, the transmission capabilities of the network side equipment may be a maximum rate of a CC in a specific Modulation and Coding scheme (MCS) or rank number. As another example, the transmission capacity of the network side device may be the ratio of the amount of data actually transmitted to the resource usage rate. When calculating the wireless transmission capacity, noise in the acquired data may be removed, such as removing singular points.

[0094] As an example, the plurality of power-saving level tables may include a power-saving level table corresponding to each of the 24 hours of a day. In this case, a corresponding power-saving level table can be selected based on the first future time period. For example, if the first future time period is the time period 15:00 to 16:00, a power-saving level table corresponding to the time period 15:00 to 16:00 can be searched for from the plurality of power-saving level tables. If the network side device has a plurality of CCs, a plurality of power-saving level tables are found. For example, if the network side device has two CCs, a power-saving level table corresponding to CC1 for the time period 15:00 to 16:00 and a power-saving level table corresponding to CC2 are found.

[0095] As another example, each of the above power saving level tables may have a corresponding interference level range. In this case, a power saving level table may be determined based on the obtained interference level and the above interference level range. For example, if the obtained interference level is within the interference level range corresponding to the power saving level table, the power saving level table may be determined as the predetermined power saving level table.

[0096] Continuing to refer to FIG. 4, the controller 420 may be configured to perform a power saving operation according to the determined power saving level.

[0097] As an example, if there is only one CC in the network side device, then, for example, the determined power saving level table may be Table 1 above, and based on the predicted traffic volume and Table 1 above, it can be determined that the power saving level applied at the first time is ES4 in Table 1 above, and the network side device can perform a power saving operation based on ES4. Specifically, the resource combination corresponding to ES4 is 1port+BW+P, which means that half of the spatial domain resources corresponding to the CC are preferentially turned off, and there is no need to turn off the frequency domain and power domain resources corresponding to the CC. In this case, the network side device can randomly turn off half of the spatial domain resources, and preferentially turn off the spatial domain resources with no traffic volume. If there is still traffic volume in the spatial domain resources that should be turned off, the traffic volume can be introduced into other spatial domain resources that do not need to be turned off, and then the spatial domain resources that should be turned off can be turned off.

[0098] As another example, when there are multiple CCs in the network side device, for example, there are two CCs (i.e., CC1 and CC2), the above Table 1 corresponding to CC1 and the above Table 1 corresponding to CC2 can be obtained. Assuming that the carrier frequency of CC2 is higher than that of CC1, the coverage range of CC1 is wider than that of CC2, and the coverage range is used as an index for determining the priority, and the resource with the small impact on the coverage is preferentially turned off. At this time, as shown in the above FIG. 2, the resource corresponding to CC2 is preferentially turned off (the method of turning off is the same as the previous example, and will not be repeated here), and then, after turning off the resource corresponding to CC2, if the requirement is still not satisfied, the resource corresponding to CC1 can be subsequently turned off. In FIG. 2, CC1 and CC2 respectively indicate a combination of two resources. The order of turning off the resources is from top to bottom. Selectively, as shown in the above FIG. 3, a part of the resource corresponding to CC2 is turned off first, and then the resource corresponding to CC1 is turned off. In FIG. 3, CC1 and CC2 respectively indicate a combination of two resources. The order in which resources are turned off is from top to bottom.

[0099] The network side device provided by the present disclosure has been described in detail above with reference to the accompanying drawings. In the network side device provided by the present disclosure, a power saving level for the network side device is accurately determined based on a predicted traffic volume and a predetermined refined power saving level table, so that the network side device can accurately select a power saving level, and when operating according to the determined power saving level, it can turn off some resources of the CC instead of turning off the whole CC to reserve only the minimum resources for transmitting the required traffic volume, thereby achieving the best power saving effect.

[0100] (Hardware configuration) The block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. The method of realizing each functional block is not particularly limited. That is, each functional block may be realized by using one device that is physically or logically combined, or may be realized by using two or more devices that are physically or logically separated and directly or indirectly connected (for example, using wires, wirelessly, etc.). The functional blocks may be realized by combining the one device or multiple devices with software.

[0101] Functions include, but are not limited to, judgment, determination, judgement, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs the transmission function may be called a transmitting unit or a transmitter. In either case, as described above, the implementation method is not particularly limited.

[0102] For example, a base station, a user terminal, or the like in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 5 is a block diagram showing an example of a hardware configuration of a network side device according to an embodiment of the present disclosure. The network side device (for example, the network side device 4) may be physically configured as a computer device including a processor 501, a memory 502, a storage 503, a communication device 504, an input device 505, an output device 506, a bus 507, and the like.

[0103] In the following description, the term "apparatus" may be interpreted as a circuit, a device, a unit, etc. The hardware configuration of the network side equipment may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0104] Each function in the network side device is realized by loading a specific software (program) onto hardware such as a processor 501 and a memory 502, causing the processor 501 to perform calculations, control communications via a communication device 504, and control at least one of reading and writing data in the memory 502 and the storage 503.

[0105] The processor 501 controls the entire computer by running an operating system, for example. The processor 501 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, the control unit, processing unit, etc. of the network side device described above may be realized by the processor 501.

[0106] Moreover, the processor 501 reads out a program (program code), a software module, data, etc. from at least one of the storage 503 and the communication device 504 into the memory 502, and executes various processes according to the read out programs. As the program, a program that causes a computer to execute at least a part of the operations described in the above-mentioned embodiment is used. For example, the processing unit or control unit of the network side device may be realized by a control program stored in the memory 502 and operating in the processor 501, and other functional blocks may be realized in the same manner. Although it is shown that the above various processes are executed by one processor 501, they may be executed by two or more processors 501 simultaneously or sequentially. The processor 501 may be realized by one or more chips. Furthermore, the program may be transmitted from the network via an electric communication line.

[0107] The memory 502 is a computer-readable recording medium, and may be configured by at least one of, for example, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), and the like. The memory 502 may also be called a register, a cache, a main memory (primary storage device), and the like. The memory 502 can store an executable program (program code), a software module, and the like for implementing a wireless communication method according to an embodiment of the present disclosure.

[0108] The storage 503 is a computer-readable recording medium, and may be configured by at least one of an optical disk such as a CD-ROM (Compact Disc Read Only Memory), a hard disk drive, a flexible disk, an optical disk (e.g., a compact disk, a digital multifunction disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a Floppy (registered trademark) disk, and a magnetic stripe. The storage 503 may be called an auxiliary storage device. The above recording medium may be, for example, a database, a server, or other suitable medium including at least one of the memory 502 and the storage 503.

[0109] The communication device 504 is hardware (transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also called, for example, a network device, a network controller, a network card, a communication module, etc. The communication device 504 may be configured to include a high-frequency switch, a duplexer, a filter, and a frequency synthesizer to realize, for example, at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).

[0110] The input device 505 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an input from the outside. The output device 506 is an output device (e.g., a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that performs output to the outside. The input device 505 and the output device 506 may be integrated into one structure (e.g., a touch panel).

[0111] In addition, each device such as the processor 501 and the memory 502 is connected by a bus 507 for communicating information. The bus 507 may be configured using a single bus, or may be configured using different buses between the devices.

[0112] Furthermore, the network side device may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array), and some or all of the functional blocks may be realized using the hardware. For example, the processor 501 may be implemented using at least one of these pieces of hardware.

[0113] (Modification) In the present disclosure, the notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information may be performed by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination of these. In addition, the RRC signaling may be called an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0114] Each aspect / embodiment described in the present disclosure may be a mobile communication system (mobile broadband) system, such as LTE (Long Term Evolution), LTE-Advanced (LTE-A), SUPER3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer or a decimal number)), FRA (Future Radio Access), NR (new Radio), New radio access (NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), and the like. Broadband), IEEE802.11 (Wi-Fi (registered trademark)), IEEE802.16 (WiMAX (registered trademark), IEEE802.20, UWB (Ultra-wide Band), Bluetooth (registered trademark), other appropriate systems, and next-generation systems expanded, modified, created, and specified based on them. In addition, a combination of multiple systems (e.g., a combination of at least one of LTE and LTE-A and 5G, etc.) may be applied.

[0115] The order of the steps, sequences, flow charts, etc. of each aspect / embodiment described in this disclosure may be changed unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0116] In the present disclosure, a particular operation performed by a base station may be performed by its upper node in some cases. In a network including one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal may be performed by at least one of the base station and other network nodes other than the base station (e.g., Mobility Management Entity (MME), Serving-Gateway (S-GW), etc., but are not limited thereto). In the above example, a case where there is one other network node other than the base station is shown, but a combination of multiple other network nodes (e.g., MME and S-GW) may also be used.

[0117] Information, etc. (See the "Information, Signals" section) may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may also be input and output via multiple network nodes.

[0118] The input and output information may be stored in a specific location (e.g., memory) or may be managed using a management table. The input and output information may be overwritten, updated, or added. The output information may be deleted. The input information may be transmitted to another device.

[0119] The determination may be based on a value represented by a single bit (0 or 1), a boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).

[0120] Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched according to execution. In addition, notification of predetermined information (e.g., notification of "X") is not limited to explicit notification, and may be implicit (e.g., not notifying the predetermined information).

[0121] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modified and altered forms without departing from the spirit and scope of the invention defined based on the description of the claims. Therefore, the description of the present disclosure is intended to be illustrative and explanatory and does not have any limiting meaning on the present disclosure.

[0122] In this disclosure, software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0123] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if the software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included in the definition of transmission media.

[0124] The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0125] In addition, the terms described in this disclosure and the terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of the channel and the symbol may be a signal (signaling). Also, the signal may be a message. Also, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0126] As used in this disclosure, the terms "system" and "network" may be used interchangeably.

[0127] In addition, the information, parameters, etc. described in the present disclosure may be represented using absolute values, may be represented using relative values ​​from a predetermined value, or may be represented using other corresponding information. For example, a radio resource may be indicated by an index.

[0128] The names used for the above parameters are not limiting in any way. Furthermore, the formulas etc. using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not limiting in any way.

[0129] In this disclosure, terms such as "base station (BS)", "radio base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "carrier", "component carrier", etc. may be used interchangeably. A base station may also be referred to by terms such as a macro cell, a small cell, a femto cell, a pico cell, etc.

[0130] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the entire coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also be provided with communication services by a base station subsystem (e.g., a small base station for indoor use (Remote Radio Head (RRH)). Terms such as "cell" or "sector" refer to a part or the entire coverage area of ​​a base station and / or a base station subsystem that provides communication services in this coverage.

[0131] In this disclosure, terms such as "Mobile Station (MS)", "user terminal", "user equipment (UE)", "terminal", etc. may be used interchangeably.

[0132] A mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0133] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc. The moving object is a movable object, and the moving speed is arbitrary. Of course, the moving object may be stopped. The moving object may be, for example, a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, a loader, a bulldozer, a wheel loader, a dump truck, a forklift, a train, a bus, a tow truck, a rickshaw, a ship (ship and other watercraft), an aircraft, a rocket, an artificial satellite, a drone (registered trademark), a multirotor helicopter, a quadcopter (vertical take-off and landing) helicopter, a balloon, and an object mounted thereon, or is not limited to these. The moving object may be an autonomous moving object based on an operation command. This may be a transportation vehicle (e.g., a car, an airplane, etc.), an unmanned moving vehicle (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Furthermore, at least one of the base station and the mobile station further includes a device that does not necessarily move during a communication operation. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

[0134] Furthermore, the base station in the present disclosure may be read as a user terminal. For example, a structure in which communication between a base station and a user terminal is replaced with communication between a plurality of user terminals (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)) may be applied to each aspect / embodiment of the present disclosure. In this case, the user terminal 20 may be configured to have the functions of the above-mentioned base station 10. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, an uplink channel, a downlink channel, etc. may be read as a sidelink channel.

[0135] Similarly, the user terminal in the present disclosure may be interpreted as a base station. In this case, the base station 10 may be configured to have the functions of the user terminal 20 described above.

[0136] The term "determining" as used in this disclosure may encompass a wide variety of actions. For example, "determining" can include judging, calculating, computing, processing, deriving, investigating, looking, etc. "Decision" may be considered to mean "determining" such things as "looking up," "searching," "inquiring" (e.g., searching in a table, database, or other data structure), and "ascertaining." "Decision" may also be considered to mean "determining" such things as receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and accessing (e.g., accessing data in memory). "Decision" may also be considered to mean "determining" such things as resolving, selecting, choosing, establishing, and comparing. In other words, "decision" may also be considered to mean "deciding" to perform some kind of action. "Decision" may also be interpreted as "assuming," "expecting," "considering," and the like.

[0137] In this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, it is contemplated to use one or more wires, cables, printed electrical connections, as well as wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0138] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0139] Any reference to an element using a designation such as "first," "second," etc., used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some way.

[0140] In the present disclosure, the "units" in the structures of the above-mentioned devices can be replaced with "circuits," "devices," and the like.

[0141] When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Further, when used in this disclosure, the term "or" is not intended to be an exclusive or.

[0142] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present specification. The present disclosure can be implemented as modified and altered forms without departing from the spirit and scope of the present disclosure defined based on the description of the claims. Therefore, the description in the present specification is for illustrative purposes only and does not have any limiting meaning on the present disclosure.

Claims

1. A network side device in a wireless communication network, a processing unit that determines a power saving level for the network side device based on a predicted traffic volume and a predetermined power saving level table, the power saving level table including a plurality of power saving levels corresponding to a wireless transmission capability of the network side device and a combination of resources used by the network side device during wireless transmission, the combination of resources being a combination of at least two resources among a plurality of resources, and the combination of resources being determined based on a priority during a power saving operation of each of the at least two resources; A control unit that executes the power saving operation according to the determined power saving level.

2. The network side equipment according to claim 1 , wherein the plurality of resources include at least two of a time domain resource, a frequency domain resource, a spatial domain resource, a power domain resource, and a component resource of the network side equipment.

3. the predicted traffic volume corresponds to a first future time period; 2. The network side device according to claim 1, wherein the predetermined power saving level table is a power saving level table determined in advance from a plurality of power saving level tables based on the first future time period.

4. The network side device according to claim 3 , wherein the predetermined power saving level table is a power saving level table predetermined from the plurality of power saving level tables based on an interference level within the first future time period.

5. The priority is determined by at least one of a power consumption level, an energy efficiency, a coverage range, and a speed at which components of the network side device are turned off, corresponding to each of the at least two resources corresponding to a second past time period; 5. The network side device according to claim 1, wherein the second past time period is earlier than the first future time period.

6. A wireless communication method for use in a network side device, comprising: determining a power saving level for the network side device based on a predicted traffic volume and a predetermined power saving level table, the power saving level table including a plurality of power saving levels corresponding to a wireless transmission capability of the network side device and a combination of resources used by the network side device during wireless transmission, the combination of resources being a combination of at least two resources among a plurality of resources, and the combination of resources being determined based on a priority during a power saving operation of each of the at least two resources; and performing the power saving operation according to the determined power saving level.

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