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

Abstract

A method for wireless communication at a network side device and a corresponding network side device wherein a processing unit of the network side device is configured to determine a power saving level for the network side device based on a predicted traffic and a predetermined power saving level table, wherein the power-saving grade table comprises a plurality of power-saving grades corresponding to the wireless transmission capability of the network side equipment and the resource combination used by the network side equipment during wireless transmission; wherein the resource combination is a combination of at least two resources in the plurality of resources and the resource combination is determined based on the priority of each resource in the at least two resources in the power saving operation; the control unit is configured to perform a power saving operation according to the determined power saving level. According to the method and the network side equipment provided by the invention, the network side equipment can accurately select a finer power-saving grade and can only reserve the minimum resource of the service volume required by transmission during power-saving operation, so that the optimal power-saving effect is achieved.

Description

Technical Field

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

[0002] Wireless communication network systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. Typical wireless communication network systems may employ multiple access technologies that can support communication with multiple communication devices by sharing available system resources (e.g., bandwidth, transmit power, etc.). 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 is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0003] A wireless communication network system may include multiple network-side devices, for example, multiple base stations. Each base station can simultaneously support communications 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, while the uplink refers to the communication link from the UE to the base station.

[0004] Since the base station needs to communicate with multiple UEs, a large amount of power is consumed at the base station. In the current carbon neutral environment, saving power consumption at the base station has become an urgent problem to be solved. 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, including: a processing unit, configured to determine a power saving level for the network side device based on predicted business volume and a predetermined power saving level table, wherein the power saving level table includes multiple power saving levels corresponding to the wireless transmission capability of the network side device and a resource combination used by the network side device during wireless transmission, wherein the resource combination is a combination of at least two resources out of a plurality of resources, and the resource combination is determined based on the priority of each of the at least two resources in the power saving operation; 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, a method for wireless communication at a network side device is provided, comprising: determining a power saving level for the network side device based on predicted traffic volume and a predetermined power saving level table, wherein the power saving level table includes multiple power saving levels corresponding to the wireless transmission capability of the network side device and combined resources used by the network side device during wireless transmission, wherein the resource combination is a combination of at least two resources out of a plurality of resources, and the resource combination is determined based on the priority of each of the at least two resources in the power saving operation; and performing the power saving operation according to the determined power saving level.

[0007] According to the network side equipment and method of the above-mentioned one aspect of the present disclosure, the power saving level for the network side equipment can be accurately determined based on the predicted business 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 accurately shut down part of the resources in the component carrier instead of shutting down the entire component carrier to retain only the minimum resources for transmitting the required business volume, thereby achieving the best power saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The above and other purposes, features and advantages of the present disclosure will become more apparent by describing the embodiments of the present disclosure in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0009] Figure 1 A flowchart of a method for wireless communication at a network-side device according to an embodiment of the present disclosure is shown.

[0010] Figure 2-Figure 3 A schematic diagram showing a shutdown sequence of resources according to an embodiment of the present disclosure is shown.

[0011] Figure 4 A block diagram of a network side device 400 in a wireless communication network according to an embodiment of the present disclosure is shown.

[0012] Figure 5 A block diagram showing an example of a hardware structure of a network side device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the present disclosure more obvious, the exemplary embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same elements from beginning to end. It should be understood that the embodiments described in the present disclosure are merely illustrative and should not be interpreted as limiting the scope of the present disclosure.

[0014] Since the base station needs to communicate with a large number of UEs, a large amount of electricity is consumed at the base station. In order to save power consumption at the base station, some power saving methods for base stations have been proposed. In these power saving methods, it is necessary to shut down some or all carriers at one time (for example, in the case of carrier aggregation (CA), shut down some component carriers (CC) or all CCs). This shutdown method not only has a poor power saving effect, but also may affect the user's network experience (for example, when the traffic volume increases sharply, the base station shuts down the entire CC due to power saving operations).

[0015] In order to solve the above problems, the present disclosure provides a method for wireless communication at a network side device such as a base station, and the method can be based on a more refined energy saving (ES) level table to perform a more refined energy saving operation by first shutting down some resources in a CC instead of shutting down the entire CC when energy saving operation is required. The method for wireless communication at a network side device provided by one aspect of the present disclosure and the corresponding network side device will be described in detail below with reference to the accompanying drawings.

[0016] Figure 1 A flowchart of a method for wireless communication at a network-side device according to an embodiment of the present disclosure is shown. Figure 1 The method shown can be performed by a network side device. As an example, the network side device can be a base station. Alternatively, the network side device can be an operation administration and maintenance (OAM) module or a service management and orchestration (SMO) module that interacts with the base station outside the base station. In the case where the network side device is the above-mentioned OAM or SMO module, the OAM or SMO module needs to transmit the information about the power saving level obtained by executing the method provided by the present disclosure and the resource information corresponding to the power saving level to, for example, the base station, so that the base station can perform corresponding power saving operations.

[0017] Reference Figure 1In step S110, the network side device can determine the power saving level for the network side device based on the predicted business volume and a predetermined power saving level table, wherein the power saving level table includes multiple power saving levels corresponding to the wireless transmission capability of the network side device and the combined resources used by the network side device during wireless transmission, wherein the resource combination is a combination of at least two resources out of the multiple resources, and the resource combination is determined based on the priority of each of the at least two resources in the power saving operation.

[0018] In an example according to the present disclosure, the predicted traffic volume may be the traffic volume corresponding to the first future period, so that the traffic volume of the future period may be better predicted.

[0019] As an example, the time period can be a time in hours or minutes. For example, the time period can be one hour or two hours. Alternatively, the time period can be 15 minutes or 30 minutes.

[0020] The first future time period may be a certain time period in the future to be predicted. For example, the first future time period may be the next time period next to 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. For another example, the first future time period may be a time period separated from the current time by a predetermined time period. For example, if the current time is 12:00, the first future time period may be from 15:00 to 16:00, which is 2 hours later.

[0021] The traffic volume corresponding to the first future period may be traffic volume obtained based on an existing 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 period as the predicted traffic volume.

[0022] The interference level in the first future time period may be based on the signal to interference plus noise ratio (SINR) obtained when the first future time period occurs. The interference level may be obtained by the network side device based on the UE communicating with it. In the case where the network side device communicates with multiple UEs, the interference level may be determined based on the SINR with each of the multiple UEs. For example, the SINR with each UE may be summed or averaged to determine the interference level. The network side device may obtain the interference level in real time or at a preset time. The obtained interference level corresponds to the traffic volume corresponding to the first future time period. The network side device may determine the traffic volume corresponding to the interference level as the predicted traffic volume.

[0023] In an example according to the present disclosure, the multiple resources may include at least two of the time domain resources, frequency domain resources, air domain resources, power domain resources, and component resources of the network side device, so that the method provided by the present invention can comprehensively consider all existing resources to facilitate better subsequent power saving operations. As an example, time domain resources may include subframes, slots, mini-slots, symbols and other resources related to the carrier. Frequency domain resources may include partial bandwidth (Bandwidth, BW), subbands, reference signal groups, subcarrier groups and other resources related to the carrier. Air domain resources may include antenna elements (Antenna element), transceiver units (TxRU), virtual antenna ports and other resources related to the carrier. The power domain resources 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 in the transmitted data (Data), control (control), reference signal (RS), synchronization signal block (SSB), etc., which are related to the carrier. The component resources of the network side device may be hardware or software component resources used by the network side device when using time domain resources, frequency domain resources, spatial domain resources or power domain resources, such as radio frequency modules, power amplifier modules, digital baseband modules, etc.

[0024] In an example according to the present disclosure, the resource combination 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 a network side device.

[0025] In an example according to the present disclosure, the priority can be determined based on at least one of the power consumption level, energy efficiency, coverage, and component shutdown speed of the network-side device corresponding to each of the at least two resources corresponding to the second past period, wherein the second past period is earlier than the first future period. This enables the method provided by the present disclosure to comprehensively determine the priority based on the resource data of the historical period, thereby facilitating better subsequent power saving operations.

[0026] As an example, the second past period may be a certain period in the past that is earlier than the first future period.

[0027] 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 amount of power that can be saved by the network side device when the resource is turned off, that is, it reflects the power consumption corresponding to the resource. The higher the priority of a resource with high power consumption, the higher the priority of the resource with high power consumption will be in the subsequent power saving operation. For example, the total power consumption including time domain resources, frequency domain resources, spatial domain resources, and power domain resources can be indicated by the following formula (1):

[0028] P 总 =55+225*s a *(A+s f *s p *(1-A)) (1)

[0029] Among them, P 总 Indicates the total power consumption. 55 and A constitute 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. a Indicates the power consumption coefficient corresponding to airspace resources. f Indicates the power consumption coefficient corresponding to the frequency domain resources. p Indicates the power consumption coefficient corresponding to the power domain resource. It can be seen from the above formula (1) that the priority of the air domain resource is the highest, and the priority of the frequency domain resource and the power domain resource is equal. Considering that the power domain resource involves the transmission power of the network side equipment, the shutdown of the power domain resource may affect the coverage. Therefore, in actual operation, the shutdown priority of air domain resources, frequency domain resources and power domain resources can be from high to low: air domain resources, frequency domain resources, power domain resources.

[0030] The energy efficiency corresponding to each resource may be the energy efficiency corresponding to the time domain resources, frequency domain resources, spatial domain resources, power domain resources or component resources of the network side device. The energy efficiency corresponding to each resource may indicate the energy required to transmit a certain amount of business, recorded as Bit / energy. If the energy required to transmit the certain amount of business through the resource is low, it means that the energy efficiency corresponding to the resource is high, otherwise it is low. Resources corresponding to high energy efficiency have a low priority, and resources corresponding to low energy efficiency have a high priority. In subsequent power-saving operations, resources corresponding to low energy efficiency are turned off first. Accordingly, when turning on resources, resources corresponding to high energy efficiency are turned on first.

[0031] 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 the predetermined range covered by the network side device can reach a certain level or the receiving power of the UE can reach a certain level. For example, after the power domain resource is turned off, the receiving power of the UE within the predetermined range of 100m covered by the base station may not be able to reach the minimum signal receivable level, then the priority corresponding to the power resource is low. In subsequent power saving operations, the power resource cannot be given priority to be turned off. For another example, after the frequency domain resource is turned off, the receiving power of the UE within the predetermined range of 100m covered by the base station can still at least reach the minimum signal receivable level, then the priority corresponding to the frequency domain resource is high. In subsequent power saving operations, the frequency domain resource can be given priority to be turned off. The coverage range corresponding to each resource can also indicate the size of the carrier frequency corresponding to the resource. If the carrier frequency corresponding to the resource is large, then the priority corresponding to the resource is high. If the carrier frequency corresponding to the resource is small, then the priority corresponding to the resource is low. In subsequent power saving operations, resources with higher priorities are shut down first.

[0032] The component shutdown speed of the network side device corresponding to each resource may be the component shutdown speed of the network side device corresponding to the time domain resource, frequency domain resource, spatial domain resource, power domain resource or component resource of the network side device. The component shutdown speed of the network side device corresponding to each resource may indicate the speed at which the network side device shuts down the component corresponding to the time domain resource, frequency domain resource, spatial domain resource, power domain resource or component resource of the network side device. When some services have speed requirements, the resources corresponding to the fast shutdown speed have a high priority. In subsequent power saving operations, resources with high priority are shut down first.

[0033] The above priority example will be described in detail later with the help of an example, and will not be elaborated here.

[0034] In the example according to the present disclosure, the predetermined power saving level table can be one of the power saving level tables predetermined from multiple power saving level tables based on the first future period. This allows the method provided by the present disclosure to directly determine the power saving level table based on the first future period, which is convenient and fast. In addition, determining the power saving level table based on the first future period is actually determining the power saving level table based on the traffic volume in the first future period.

[0035] In an example according to the present disclosure, the predetermined power saving level table may be further determined based on the interference level in the first future period, and one of the power saving level tables is predetermined from the multiple power saving level tables. This allows the method provided by the present disclosure to jointly determine a more accurate power saving level table based on the first future period and the interference level, thereby optimizing subsequent power saving operations.

[0036] As an example, a plurality of power saving level tables may be determined in advance. The manner of determining the plurality of power saving level tables will be described in detail with an example later, and will not be described in detail here.

[0037] 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, as shown in Table 1 below. In the case where there are multiple CCs in the network side device, for example, 2 CCs, 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, wherein the wireless transmission capability value A1 corresponding to ES8 when all resources are used to transmit data may indicate the total wireless transmission capability value of CC1.

[0038] ES Level Resource combination Wireless transmission capacity [kbps] ES8 {2port+BW+P} A1 ES7 {2port+BW+P / 2} A2 ES6 {2port+BW / 2+P} A3 ES5 {2port+BW / 2+P / 2} A4 ES4 {1port+BW+P} A5 ES3 {1port+BW+P / 2} A6 ES2 {1port+BW / 2+P} A7 ES1 {1port+BW / 2+P / 2} A8

[0039] Table 1: Power saving level table

[0040] In Table 1, the ES level is divided into 8 levels, namely ES1 to ES8. Alternatively, the ES level can also be divided into any number of levels according to actual needs. Port represents the virtual antenna port in the airspace resource. As can be seen from Table 1, there are a total of 2 ports in the network side device. BW represents a partial bandwidth in the frequency domain resource, and BW / 2 represents only half of the partial bandwidth is reserved. P represents the resource corresponding to PSD in the power domain resource, where P / 2 represents only half of the resource is reserved.

[0041] In Table 1, the power saving levels of ES1 to ES8 may be arranged from high to low as follows: ES1, ES2, ES3, ES4, ES5, ES6, ES7, ES8. Power saving level ES1 may indicate that the energy consumption at the network side device is the lowest. Power saving level ES8 may indicate that the energy consumption at the network side device is the highest. Power saving levels ES2-ES7 indicate that the energy consumption at the network side device is between ES1 and ES8. Alternatively, other ways of indicating the high and low energy consumption at the network side device may also be designed.

[0042] The resources in Table 1 may indicate resources used by the network side device during wireless transmission, for example, at least two of time domain resources, frequency domain resources, space domain resources, and power domain resources.

[0043] The wireless transmission capability in Table 1 may indicate the wireless transmission capability of the network side device when using the corresponding resources. As an example, the transmission capability of the network side device may be a fitting capability value determined based on historical data, such as a fitting value determined based on a function of port, BW, P and component resources, wherein the function may be a maximum function, a cumulative distribution function (CDF), etc. For example, the transmission capability of the network side device may be the maximum value, average value, weighted average value, etc. of the amount of data transmitted by the network side device in the past period of time. For example, the transmission capability of the network side device may be the maximum value or weighted average value of the amount of data transmitted by the CC per unit time in the past period of time. For another example, the transmission capability of the network side device may be the product of the mean of the transmission speeds of all UEs under a predetermined CC in the past period of time and the bandwidth of the predetermined CC. For another example, the transmission capability of the network side device may be the maximum rate of the CC under a predetermined modulation and coding scheme (MCS) or rank number. For another example, the transmission capability of the network side device may be the ratio of the actual amount of transmitted data to the resource utilization rate. When calculating the wireless transmission capacity, the acquired data may be subjected to denoising, for example, by removing singular points.

[0044] As an example, the multiple power saving level tables may include a power saving level table corresponding to each of the 24 hours in a day. In this case, the corresponding power saving level table can be selected based on the above-mentioned first future time period. For example, in the first future time period such as the above-mentioned time period 15:00 to 16:00, the power saving level table corresponding to the time period 15:00 to 16:00 can be searched in the multiple power saving level tables; when there are multiple CCs in the network side device, multiple power saving level tables can be found. For example, in the case where there are 2 CCs in the network side device, the power saving level table corresponding to CC1 and the power saving level table corresponding to CC2 corresponding to the time period 15:00 to 16:00 can be found.

[0045] As another example, each of the above power saving level tables may have an interference level range corresponding thereto. In this case, the power saving level table may be determined based on the obtained interference level and the above interference level range. For example, when the obtained interference level falls 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.

[0046] Continue to refer to Figure 1 In step S120, the network side device may perform a power saving operation according to the determined power saving level.

[0047] As an example, when there is only one CC in the network side device, the power saving level table determined at this time may be, for example, Table 1 above, and based on the predicted traffic volume and Table 1 above, it can be determined that the power saving level applied to the first moment is ES4 in Table 1 above, then the network side device can perform power saving operations based on ES4. Specifically, the resource combination corresponding to ES4 is 1port+BW+P, which means that half of the airspace resources corresponding to the CC are given priority, and the frequency domain resources and power domain resources corresponding to the CC do not need to be closed. In this case, the network side device can randomly shut down half of the airspace resources, and preferentially shut down the airspace resources through which no traffic passes. When there is still traffic traffic in the airspace resources to be closed, the airspace resources to be closed can be closed after directing the traffic traffic to other airspace resources that do not need to be closed.

[0048] 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 a table similar to 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 greater than that of CC2. With the coverage range as the indicator for priority judgment, resources with little impact on coverage are shut down first. At this time, the resources corresponding to CC2 can be shut down first (the shutdown method is similar to that of the previous example and will not be repeated here). Then, if the requirements cannot be met after shutting down the resources corresponding to CC2, the resources corresponding to CC1 can be shut down again, such as Figure 2 As shown. Figure 2 In FIG. 1 , CC1 and CC2 respectively represent two resource combinations. The resource shutdown sequence is from top to bottom.

[0049] Optionally, some resources corresponding to CC2 may be turned off first, and then some resources corresponding to CC1 may be turned off, such as Figure 3 As shown. Figure 3 In FIG. 1 , CC1 and CC2 respectively represent two resource combinations. The resource shutdown sequence is from top to bottom.

[0050] The above has been combined Figure 1-3 The method provided by the present disclosure is described in detail. Since the above method provided by the present disclosure can accurately determine the power saving level for the network side device based on the predicted business volume and a pre-determined more refined power saving level table, the network side device can accurately select the power saving level, and when operating according to the determined power saving level, it can accurately shut down part of the resources in the CC instead of shutting down the entire CC to retain only the minimum resources for transmitting the required business volume, thereby achieving the best power saving effect.

[0051] Next, we will use several examples to illustrate the above combination Figure 1-3The specific examples of multiple power saving level tables and priorities mentioned in the description are provided to better understand the above method provided by the present disclosure.

[0052] First, a method of determining a plurality of power saving level tables will be described by way of example.

[0053] The plurality of power saving level tables may be determined based on historical traffic volumes and corresponding resources.

[0054] For example, the business volume of each hour in all historical days and the corresponding resources can be obtained, as shown in Table 2 below.

[0055]

[0056] Table 2: Business volume and resources

[0057] In Table 2, traffic volume 1 may represent the traffic volume that the network side device can achieve by using the frequency domain resource BW related to CC1, 1 port of spatial domain resource, and P1 of power domain resource to communicate with the UE. SINR (7.5 dB) represents the interference level at this time. Traffic volume 2 may represent the traffic volume that the network side device can achieve by using the frequency domain resource BW / 2 related to CC2, 2 ports of spatial domain resource, and P2 of power domain resource to communicate with the UE. SINR (13.1 dB) represents the interference level at this time. Similarly, the meaning of traffic volume N is not repeated here.

[0058] After obtaining the traffic volume of each hour in all the historical days and the corresponding resources, it is possible to construct a power saving level table corresponding to each hour to be used in the future. For example, in the case of constructing a power saving level table corresponding to 12:00-13:00 noon to be used in the future, the traffic volume and the corresponding resources corresponding to 12:00-13:00 noon in all the historical days can be filtered out from the traffic volume of each hour in all the historical days and the corresponding resources obtained above. Then, according to the above combination Figure 1-3 The resource shutdown priority introduced can obtain a table as shown in the above Table 1. Optionally, when 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.

[0059]

[0060]

[0061] Table 3: Power saving level table

[0062] After filling in the specific values ​​obtained in Table 3 above, you can get the following Table 4-7, for example

[0063]

[0064] Table 4: Power saving level table

[0065]

[0066]

[0067] Table 5: Power saving level table

[0068]

[0069] Table 6: Power saving level table

[0070]

[0071] Table 7: Power saving level table

[0072] It should be noted that, without considering the interference level, a power saving level table as shown in Table 1 can be obtained for each hour. In this case, a predetermined power saving level table corresponding to the first future time period can be obtained based on the first future time period.

[0073] When only the interference level is considered, a power saving level table corresponding to each interference level range can be determined. In this case, the power saving level table can be determined based on the obtained interference level and the above interference level range. For example, when the obtained interference level falls 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 9.2dB, by comparing 9.2dB with the interference level range in Tables 4-7 above, it can be determined that Table 5 is the required predetermined power saving level table.

[0074] While considering both the time period and the interference level, multiple power saving level tables (such as Tables 4-7 above) corresponding to the first future time period can be selected according to the time period (such as the first future time period mentioned above), and then the required predetermined power saving level table can be determined from the multiple power saving level tables based on the obtained interference level.

[0075] When using the above power saving level table 4-7, the predicted traffic volume is matched with the wireless transmission capacity in table 4-7 from bottom to top. For example, when using the above table 4, assuming that the predicted traffic volume is 5716, in table 4, from bottom to top, it will match ES3, and will not continue to match up to use ES4, ES6 or ES7. In this way, the power saving effect can be optimized.

[0076] The above has described in detail the determination method of multiple power saving level tables in combination with Table 2 to Table 7. Next, an example of priority will be given.

[0077] Table 8 below shows the 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.

[0078]

[0079] Table 8: Resources corresponding to a single CC

[0080] In Table 8, the last row indicates that all resources using the single CC.

[0081] For the power consumption level, if half of the resources are turned off, the power consumption changes to: P5>P4>P3≈P2≈P1. In this case, the resources with high power consumption are turned off first, and the turn-off order of the resources under this CC is: air domain>power domain=frequency domain.

[0082] For coverage, if half of the resources are turned off, the size of the coverage is: C1 = C2 > C4 > C3. In this case, priority is given to turning off resources that do not affect coverage, and the order of turning off resources under the CC is: time domain or frequency domain > spatial domain > power domain.

[0083] Regarding the shutdown speed of the components, the shutdown speed is: T4>T3=T2=T1. In this case, if speed is given priority, the faster ones can be shut down first, that is, the shutdown order of the resources under the CC is: time domain or frequency domain or power domain>spatial domain.

[0084] For the above power consumption level, by substituting the specific value into the above formula (1), the calculated power consumption level can be shown in the following Table 9.

[0085] resource Power consumption level Turn off half of the resource power consumption Frequency Domain <![CDATA[P2=225*s f *s p *(1-A)]]> 225*0.5*1*0.6＝67.5 Power Domain <![CDATA[P3=225*s f *s p *(1-A)]]> 225*1*0.5*0.6＝67.5 airspace <![CDATA[P4=225*s a *(A+s f *s p *(1-A))]]> 225*0.5*(0.4+1*1*0.6)＝112.5

[0086] Table 9: Power consumption levels

[0087] In Table 9, for simplicity, the basic power consumption (ie, the value 55 in formula (1)) is not added.

[0088] In Table 9, P2 = 225*s f *s p *(1-A) indicates that all airspace resources are used (i.e., s a =1) The power consumption level of the time-frequency domain resources. When only the power consumption level of the frequency domain resources is considered, the power domain resources can be considered to be fully used, that is, s p = 1. Then, assuming that A is equal to 0.4, the power consumption level for shutting down half of the frequency domain is calculated to be 67.5 as shown on the far right.

[0089] P3=225*sf *s p *(1-A) indicates that all airspace resources are used (i.e., s a =1). When only considering the power consumption level of power domain resources, frequency domain resources can be considered to be fully used, that is, s f = 1. Then, assuming A is equal to 0.4, the power consumption level for shutting down half of the power domains is calculated to be 67.5 as shown on the far right.

[0090] P4=225*s a *(A+s f *s p *(1-A)) represents the power consumption level corresponding to the airspace resources. When only the power consumption level of airspace resources is considered, the power domain resources and frequency domain resources can be considered to be fully used, that is, s p =1 and s f = 1. Then, assuming that A is equal to 0.4, the power consumption level for closing half of the airspace is calculated to be 112.5 as shown on the far right.

[0091] It can be seen from the above calculation results that the power consumption level of air domain resources is the highest, and the power consumption levels of frequency domain resources and power domain resources are equal.

[0092] Combination of the above Figure 1-3 The present disclosure provides a method for wireless communication at a network side device. Figure 4 The network side device in the wireless communication network provided by the present disclosure is described. Figure 4 The network side device 400 shown is combined with the above Figure 1-3 The method described above for wireless communication at a network side device corresponds to the method described above, so for the sake of simplicity, a detailed description of the same content is omitted here.

[0093] Figure 4 A block diagram of a network side device 400 in a wireless communication network according to an embodiment of the present disclosure is shown.

[0094] Reference Figure 4 , the network side device 400 may include a processing unit 410 and a control unit 420. Although in this example, the network side device 400 is shown to include the processing unit 410 and the control unit 420. However, it should be understood that the network side device 400 may also include other components, however, since these components are irrelevant to the content of the embodiment of the present disclosure, their illustration and description are omitted here.

[0095] 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. In the case where the network side device is the above-mentioned OAM or SMO module, the OAM or SMO module needs to transmit the information about the power saving level obtained by executing the method provided by the present disclosure and the resource information corresponding to the power saving level to, for example, the base station, so that the base station performs the corresponding power saving operation.

[0096] The processing unit 410 can be configured to determine the power saving level for the network side device based on the predicted business volume and a predetermined power saving level table, wherein the power saving level table includes multiple power saving levels corresponding to the wireless transmission capability of the network side device and the combined resources used by the network side device during wireless transmission, wherein the resource combination is a combination of at least two resources out of the multiple resources, and the resource combination is determined based on the priority of each of the at least two resources in the power saving operation.

[0097] In an example according to the present disclosure, the predicted traffic volume may be the traffic volume corresponding to the first future period, so that the traffic volume of the future period may be better predicted.

[0098] As an example, the time period can be a time in hours or minutes. For example, the time period can be one hour or two hours. Alternatively, the time period can be 15 minutes or 30 minutes.

[0099] The first future time period may be a certain time period in the future to be predicted. For example, the first future time period may be the next time period next to 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. For another example, the first future time period may be a time period separated from the current time by a predetermined time period. For example, if the current time is 12:00, the first future time period may be from 15:00 to 16:00, which is 2 hours later.

[0100] The traffic volume in the first future period may be traffic volume obtained based on an existing 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 period as the predicted traffic volume.

[0101] The interference level in the first future time period may be based on the SINR obtained when the first future time period occurs. The interference level may be obtained by the network side device based on the UE communicating with it. In the case where the network side device communicates with multiple UEs, the interference level may be determined based on the SINR with each of the multiple UEs. For example, the SINR with each UE may be summed or averaged to determine the interference level. The network side device may obtain the interference level in real time or at a preset time. The obtained interference level corresponds to the traffic volume corresponding to the first future time period. The network side device may determine the traffic volume corresponding to the interference level as the predicted traffic volume.

[0102] In an example according to the present disclosure, the multiple resources may include at least two of the time domain resources, frequency domain resources, air domain resources, power domain resources, and component resources of the network side device, so that the device provided by the present invention can comprehensively consider all existing resources to facilitate better power saving operations in the future. As an example, time domain resources may include subframes, slots, mini-slots, symbols and other resources related to the carrier. Frequency domain resources may include partial bandwidth (Bandwidth, BW), subbands, reference signal groups, subcarrier groups and other resources related to the carrier. Air domain resources may include antenna elements (Antenna element), transceiver units (TxRU), virtual antenna ports and other resources related to the carrier. The power domain resources 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 in the transmitted data (Data), control (control), reference signal (RS), synchronization signal block (SSB), etc., which are related to the carrier. The component resources of the network side device may be hardware or software component resources used by the network side device when using time domain resources, frequency domain resources, spatial domain resources or power domain resources, such as radio frequency modules, power amplifier modules, digital baseband modules, etc.

[0103] In an example according to the present disclosure, the resource combination 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 a network side device.

[0104] In an example according to the present disclosure, the priority can be determined based on at least one of the power consumption level, energy efficiency, coverage, and component shutdown speed of the network-side device corresponding to each of the at least two resources corresponding to the second past period, wherein the second past period is earlier than the first future period. This enables the device provided by the present disclosure to comprehensively determine the priority based on the resource data of the historical period, thereby facilitating better subsequent power saving operations.

[0105] As an example, the second past period may be a certain period in the past that is earlier than the first future period.

[0106] 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 amount of power that can be saved by the network side device when the resource is turned off, that is, it reflects the power consumption corresponding to the resource. The higher the priority of a resource with high power consumption, the higher the priority of the resource with high power consumption. In subsequent power saving operations, the resource with high power consumption will be turned off first.

[0107] The energy efficiency corresponding to each resource may be the energy efficiency corresponding to the time domain resources, frequency domain resources, spatial domain resources, power domain resources or component resources of the network side device. The energy efficiency corresponding to each resource may indicate the energy required to transmit a certain amount of business, recorded as Bit / energy. If the energy required to transmit the certain amount of business through the resource is low, it means that the energy efficiency corresponding to the resource is high, otherwise it is low. Resources corresponding to high energy efficiency have a low priority, and resources corresponding to low energy efficiency have a high priority. In subsequent power-saving operations, resources corresponding to low energy efficiency are turned off first. Accordingly, when turning on resources, resources corresponding to high energy efficiency are turned on first.

[0108] 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 the predetermined range covered by the network side device can reach a certain level or the receiving power of the UE can reach a certain level. For example, after the power domain resource is turned off, the receiving power of the UE within the predetermined range of 100m covered by the base station may not be able to reach the minimum signal receivable level, then the priority corresponding to the power domain resource is low. In subsequent power saving operations, the power domain resource cannot be given priority to be turned off. For another example, after the frequency domain resource is turned off, the receiving power of the UE within the predetermined range of 100m covered by the base station can still at least reach the minimum signal receivable level, then the priority corresponding to the frequency domain resource is high. In subsequent power saving operations, the frequency domain resource can be given priority to be turned off. The coverage range corresponding to each resource can also indicate the size of the carrier frequency corresponding to the resource. If the carrier frequency corresponding to the resource is large, then the priority corresponding to the resource is high. If the carrier frequency corresponding to the resource is small, then the priority corresponding to the resource is low. In subsequent power saving operations, resources with higher priorities are shut down first.

[0109] The component shutdown speed of the network side device corresponding to each resource may be the component shutdown speed of the network side device corresponding to the time domain resource, frequency domain resource, spatial domain resource, power domain resource or component resource of the network side device. The component shutdown speed of the network side device corresponding to each resource may indicate the speed at which the network side device shuts down the component corresponding to the time domain resource, frequency domain resource, spatial domain resource, power domain resource or component resource of the network side device. When some services have speed requirements, the resources corresponding to the fast shutdown speed have a high priority. In subsequent power saving operations, resources with high priority are shut down first.

[0110] In the example according to the present disclosure, the predetermined power saving level table can be one of the power saving level tables predetermined from multiple power saving level tables based on the first future period. This allows the device provided by the present disclosure to directly determine the power saving level table based on the first future period, which is convenient and fast. In addition, determining the power saving level table based on the first future period is actually determining the power saving level table based on the traffic volume in the first future period.

[0111] In an example according to the present disclosure, the predetermined power saving level table may be further determined based on the interference level in the first future period, and one of the power saving level tables is predetermined from the multiple power saving level tables. This allows the device provided by the present disclosure to jointly determine a more accurate power saving level table based on the first future period and the interference level, so as to optimize subsequent power saving operations.

[0112] As an example, a plurality of power saving level tables may be determined in advance.

[0113] Each of the multiple power saving level tables corresponds to a specific CC and indicates a total wireless transmission capability value of the CC, as shown in Table 1 above. In the case where there are multiple CCs in the network side device, for example, 2 CCs, there may be a power saving level table corresponding to CC1 and a power saving level table corresponding to CC2. Table 1 above may be a power saving level table corresponding to CC1, wherein the wireless transmission capability value A1 corresponding to ES8 when all resources are used to transmit data may indicate the total wireless transmission capability value of CC1.

[0114] In Table 1, the ES level is divided into 8 levels, namely ES1 to ES8. Alternatively, the ES level can also be divided into any number of levels according to actual needs. Port represents the virtual antenna port in the airspace resource. As can be seen from Table 1, there are a total of 2 ports in the network side device. BW represents a partial bandwidth in the frequency domain resource, and BW / 2 represents only half of the partial bandwidth is reserved. P represents the resource corresponding to PSD in the power domain resource, where P / 2 represents only half of the resource is reserved.

[0115] In Table 1, the power saving levels of ES1 to ES8 may be arranged from high to low as follows: ES1, ES2, ES3, ES4, ES5, ES6, ES7, ES8. Power saving level ES1 may indicate that the energy consumption at the network side device is the lowest. Power saving level ES8 may indicate that the energy consumption at the network side device is the highest. Power saving levels ES2-ES7 indicate that the energy consumption at the network side device is between ES1 and ES8. Alternatively, other ways of indicating the high and low energy consumption at the network side device may also be designed.

[0116] The resources in Table 1 may indicate resources used by the network side device during wireless transmission, for example, at least two of time domain resources, frequency domain resources, space domain resources, and power domain resources.

[0117] The wireless transmission capability in Table 1 may indicate the wireless transmission capability of the network side device when using the corresponding resources. As an example, the transmission capability of the network side device may be a fitting capability value determined based on historical data, such as a fitting value determined based on a function of port, BW, P and component resources, wherein the function may be a maximum function, a cumulative distribution function (CDF), etc. For example, the transmission capability of the network side device may be the maximum value, average value, weighted average value, etc. of the amount of data transmitted by the network side device in the past period of time. For example, the transmission capability of the network side device may be the maximum value or weighted average value of the amount of data transmitted by the CC per unit time in the past period of time. For another example, the transmission capability of the network side device may be the product of the mean of the transmission speeds of all UEs under a predetermined CC in the past period of time and the bandwidth of the predetermined CC. For another example, the transmission capability of the network side device may be the maximum rate of the CC under a predetermined modulation and coding scheme (MCS) or rank number. For another example, the transmission capability of the network side device may be the ratio of the actual amount of transmitted data to the resource utilization rate. When calculating the wireless transmission capacity, the acquired data may be subjected to denoising, for example, by removing singular points.

[0118] As an example, the multiple power saving level tables may include a power saving level table corresponding to each of the 24 hours in a day. In this case, the corresponding power saving level table can be selected based on the above-mentioned first future time period. For example, in the first future time period such as the above-mentioned time period 15:00 to 16:00, the power saving level table corresponding to the time period 15:00 to 16:00 can be searched in the multiple power saving level tables; when there are multiple CCs in the network side device, multiple power saving level tables can be found. For example, in the case where there are 2 CCs in the network side device, the power saving level table corresponding to CC1 and the power saving level table corresponding to CC2 corresponding to the time period 15:00 to 16:00 can be found.

[0119] As another example, each of the above power saving level tables may have an interference level range corresponding thereto. In this case, the power saving level table may be determined based on the obtained interference level and the above interference level range. For example, when the obtained interference level falls 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.

[0120] Continue to refer to Figure 4 , the control unit 420 may be configured to perform a power saving operation according to the determined power saving level.

[0121] As an example, when there is only one CC in the network side device, the power saving level table determined at this time may be, for example, Table 1 above, and based on the predicted traffic volume and Table 1 above, it can be determined that the power saving level applied to the first moment is ES4 in Table 1 above, then the network side device can perform power saving operations based on ES4. Specifically, the resource combination corresponding to ES4 is 1port+BW+P, which means that half of the airspace resources corresponding to the CC are given priority, and the frequency domain resources and power domain resources corresponding to the CC do not need to be closed. In this case, the network side device can randomly shut down half of the airspace resources, and preferentially shut down the airspace resources through which no traffic passes. When there is still traffic traffic in the airspace resources to be closed, the airspace resources to be closed can be closed after directing the traffic traffic to other airspace resources that do not need to be closed.

[0122] 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 a table similar to 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 greater than the coverage range of CC2. The coverage range is used as an indicator for priority judgment, and resources with little impact on coverage are shut down first. At this time, the resources corresponding to CC2 can be shut down first (the shutdown method is similar to that of the previous example and will not be repeated here), and then if the requirements cannot be met after shutting down the resources corresponding to CC2, the resources corresponding to CC1 can be shut down again, as shown above. Figure 2 As shown. Figure 2 In FIG. 1 , CC1 and CC2 respectively show two resource combinations. The resource shutdown order is from top to bottom. Optionally, some resources corresponding to CC2 may be shut down first, and then some resources corresponding to CC1 may be shut down, as shown above. Figure 3 As shown. Figure 3 In FIG. 1 , CC1 and CC2 respectively represent two resource combinations. The resource shutdown sequence is from top to bottom.

[0123] The network side device provided by the present disclosure has been described in detail above in conjunction with the accompanying drawings. Since the network side device provided by the present disclosure can accurately determine the power saving level for the network side device based on the predicted traffic volume and a pre-determined more refined power saving level table, the network side device can accurately select the power saving level, and when operating according to the determined power saving level, it can accurately shut down part of the resources in the CC instead of shutting down the entire CC to retain only the minimum resources for transmitting the required traffic volume, thereby achieving the best power saving effect.

[0124] <Hardware Structure>

[0125] In addition, the block diagram used for the description of the above-mentioned embodiment represents a block of a functional unit. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented using a device that is physically or logically combined, or two or more devices that are physically or logically separated can be directly or indirectly (for example, using wired, wireless, etc.) connected and implemented using these multiple devices. The functional block can also be implemented by combining software in the above-mentioned one device or the above-mentioned multiple devices.

[0126] Functionally, although there are judgment, determination, judgment, calculation, calculation, processing, export, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, regard, broadcasting, notification, communication, forwarding, configuration, reconstruction (reconfiguring), allocation (allocating, mapping), assignment, etc., but it is not limited to this. For example, the functional block (structural unit) that enables the transmission function is called a transmitting unit or a transmitter. As mentioned above, the implementation method is not particularly limited.

[0127] For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 5 501, memory 502, storage 503, communication device 504, input device 505, output device 506, bus 507, etc.

[0128] In the following description, the term "device" can be replaced by circuit, equipment, unit, etc. The hardware configuration of the network side device may include one or more of the devices shown in the figure, or may exclude some of the devices.

[0129] Regarding each function in the network side device, it is achieved by reading specific software (program) into hardware such as the processor 501 and the memory 502, so that the processor 501 performs calculations and controls the communication based on the communication device 504, or controls at least one of the reading and writing of data in the memory 502 and the storage 503.

[0130] The processor 501 controls the entire computer by, for example, operating an operating system. The processor 501 may also be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, etc. For example, the control unit and the processing unit of the above-mentioned network side device may also be implemented by the processor 501.

[0131] In addition, the processor 501 reads the program (program code), software module, data, etc. from at least one of the storage 503 and the communication device 504 to the memory 502, and performs various processes according to them. As a program, a program that enables a computer to perform 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 can also be implemented by a control program that is stored in the memory 502 and operates in the processor 501, and the same can be implemented for other functional blocks. It is explained that the above-mentioned various processes are performed by one processor 501, but they can also be performed simultaneously or sequentially by more than two processors 501. The processor 501 can also be implemented by more than one chip. In addition, the program can also be sent from the network via an electrical communication line.

[0132] The memory 502 may also be a computer-readable recording medium, for example, composed of at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), etc. The memory 502 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 502 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0133] The storage 503 may also be a computer-readable recording medium, for example, composed of at least one of an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (for example, a card, a stick, a keydrive), a floppy (registered trademark) disk, a magnetic stripe, etc. The storage 503 may also be referred to as an auxiliary storage device. The above-mentioned recording medium may also be, for example, a database, a server, or other appropriate medium including at least one of the memory 502 and the storage 503.

[0134] The communication device 504 is hardware (transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, etc. The communication device 504 may also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex).

[0135] The input device 505 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 506 is an output device that performs output to the outside (e.g., a display, a speaker, an LED light, etc.). In addition, the input device 505 and the output device 506 may also be an integrated structure (e.g., a touch panel).

[0136] In addition, the processor 501, the memory 502 and other devices are connected via a bus 507 for communicating information. The bus 507 may be configured using a single bus or different buses between the devices.

[0137] In addition, the network side device may also 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 the like, and a part or all of each functional block may be implemented by the hardware. For example, the processor 501 may also be implemented using at least one of these hardware.

[0138] <Modification>

[0139] In addition, in the present disclosure, the notification of information is not limited to the method / implementation method described in the present disclosure, and other methods may also be used. For example, the notification of information may also be implemented through physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), high-level 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 combinations thereof. In addition, RRC signaling may also be referred to as RRC messages, such as RRC Connection Setup messages, RRC Connection Reconfiguration messages, and the like.

[0140] The various modes and embodiments described in the present disclosure may be applied to LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, 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)), 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), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), a system using other appropriate systems, and a next-generation system expanded, modified, created, and specified based on them. In addition, multiple systems may be combined (for example, a combination of at least one of LTE and LTE-A and 5G, etc.) for application.

[0141] The processing procedures, timings, flow charts, etc. of each method / implementation described in this disclosure may be reversed in order as long as there is no contradiction. For example, for the method described in this disclosure, various step elements are presented in an illustrative order, and are not limited to the specific order presented.

[0142] In the present disclosure, a specific operation is set to be performed by a base station, and sometimes it is also performed by its upper node (uppernode) depending on the situation. In a network composed of one or more network nodes (network nodes) having a base station, various operations performed for communication with a terminal can obviously be performed by at least one of the base station and other network nodes other than the base station (for example, consider MME or S-GW, etc., but not limited to this). In the above example, the case where there is one other network node other than the base station is illustrated, but it can also be a combination of multiple other network nodes (for example, MME and S-GW).

[0143] Information, etc. (※Refer to the item "information, signal") can be output from a higher layer (upper layer) (or a lower layer (lower layer)) to a lower layer (or higher layer). It can also be input and output via multiple network nodes.

[0144] The input and output information can be stored in a specific location (e.g., memory) or managed using a management table. The input and output information can be overwritten, updated, or added. The output information can also be deleted. The input information can also be sent to other devices.

[0145] The determination may be made by a value represented by 1 bit (0 or 1), a true or false value (Boolean value: true or false), or by comparison of numerical values ​​(for example, comparison with a specific value).

[0146] Each method / implementation method described in the present disclosure may be used alone or in combination, or may be switched during execution. In addition, notification of specific information (e.g., notification of "is X") is not limited to being performed explicitly, but may also be performed implicitly (e.g., not notifying the specific information).

[0147] The present disclosure has been described in detail above, but it is obvious 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 a modification and variation without departing from the gist and scope of the present invention as determined by the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustration and does not have any restrictive meaning on the present disclosure.

[0148] In this disclosure, whether software is referred to as software, firmware, middleware, microcode, hardware description language, or by other names, it should be broadly interpreted to mean instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0149] In addition, software, instructions, information, etc. may also be sent and received via a transmission medium. For example, in the case where the software is sent from a website, server, or other remote source using at least one of wired technology (coaxial cable, optical cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0150] Information, signals, etc. described in the present disclosure may also be represented using one of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. referred to throughout the above description may also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0151] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may also be replaced with terms having the same or similar meanings. For example, at least one of a channel and a code element may also be a signal (signaling). In addition, a signal may also be a message. In addition, a component carrier (CC) may also be referred to as a carrier frequency, a cell, a frequency carrier, etc.

[0152] As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0153] In addition, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values ​​relative to a specific value, or other corresponding information. For example, a wireless resource may also be indicated by an index.

[0154] The names used for the parameters described above are not intended to be limiting in any respect. Furthermore, the mathematical formulas, etc., using these parameters may differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any respect.

[0155] In the present disclosure, the terms "base station (BS)", "wireless 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" and the like are used interchangeably. Base stations are sometimes referred to as macro cells, small cells, femto cells, pico cells and the like.

[0156] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, 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 ​​at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0157] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (UE)”, and “terminal” can be used interchangeably.

[0158] A mobile station is also sometimes referred to by those skilled in the art as a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or several other appropriate terms.

[0159] At least one of the base station and the mobile station may also be referred to as a transmitting device, a receiving device, a communication device, etc. In addition, at least one of the base station and the mobile station may also be a device mounted on a mobile body, a mobile body, etc. The mobile body is an object that can move, and the moving speed is arbitrary. In addition, of course, it also includes the situation where the mobile body is stopped. The mobile body includes, for example, vehicles, transport vehicles, cars, motorcycles, bicycles, connected cars, shovels, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trailers, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, drones (registered trademark), multi-rotor helicopters (multicopters), quadcopters (vertical take-off and landing) helicopters (quadcopters), balloons, and objects carried on them, or not limited to these. In addition, the mobile body may also be a mobile body that drives autonomously based on operating instructions. It can be a means of transportation (e.g., a car, an airplane, etc.), a mobile body that moves in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may also be an IoT (Internet of Things) device such as a sensor.

[0160] In addition, the base station in the present disclosure can also be interpreted as a user terminal. For example, the various methods / implementations of the present disclosure can also be applied to a structure in which the communication between a base station and a user terminal is replaced by the communication between multiple user terminals (for example, it can also be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, it can also be set as a structure in which the user terminal has the functions of the above-mentioned base station. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can also be replaced by side channels.

[0161] Likewise, the user terminal in the present disclosure may also be interpreted as a base station. In this case, the base station may also have a structure having the functions of the above-mentioned user terminal.

[0162] The term "determine" used in the present disclosure sometimes includes a variety of operations. For example, "determine" may include judging, calculating, computing, processing, deriving, investigating, looking up (looking up, search, inquiry) (for example, a search in a table, database or other data structure), confirming (ascertaining) as being "determined", etc. In addition, "determine" may include receiving (for example, receiving information), transmitting (for example, transmitting information), input, output, accessing (for example, accessing data in a memory) as being "judged", "determined", etc. In addition, "judgment" and "decision" may include resolving, selecting, choosing, establishing, comparing, etc. as being "judged", "determined". That is, "judgment" and "decision" may include certain operations being considered as "judgment" and "decision". In addition, “judgment (decision)” can also be replaced by “assuming (assuming)”, “expecting (expecting)”, “considering (considering)” and the like.

[0163] In the present disclosure, terms such as "connected", "coupled", or all their variations mean all direct or indirect connections or combinations between two or more elements, and can include the situation where there is one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The combination or connection between elements can also be physical, logical, or a combination thereof. For example, "connect" can also be replaced by "access". In the case used in the present disclosure, it can be considered to use at least one of one or more wires, cables, and printed electrical connections, and as some non-limiting and non-inclusive examples, wavelengths having wireless frequency domains, microwave domains, and optical (both visible and invisible) domains are used.

[0164] The phrase “based on” used in the present disclosure does not mean “based only on” unless otherwise explicitly stated. In other words, the phrase “based on” means both “based only on” and “based at least on”.

[0165] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not fully define the amount or order of these elements. These terms can be used in this disclosure as a convenient method to distinguish between two or more elements. Thus, reference to a first and a second element does not mean that only two elements can be used, or that the first element must take precedence over the second element in some form.

[0166] In the present disclosure, the “unit” in the configuration of each of the above-mentioned devices may be replaced with a “circuit”, a “device”, or the like.

[0167] In the present disclosure, when the terms “include,” “including,” and variations thereof are used, these terms mean inclusiveness, similar to the term “comprising.” Furthermore, the term “or” used in the present disclosure does not mean exclusive or.

[0168] The present disclosure is described in detail above, but it is obvious to those skilled in the art that the present disclosure is not limited to the embodiments described in this specification. The present disclosure can be implemented as a modification and alteration without departing from the purpose and scope of the present disclosure as determined by the claims. Therefore, the description in this specification is for the purpose of illustration and does not have any restrictive meaning for the present disclosure.

Claims

1. A network side device in a wireless communication network, comprising: a processing unit 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, wherein 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 resource combination used by the network side device during wireless transmission, wherein the resource combination is a combination of at least two resources among a plurality of resources, and the resource combination is determined based on a priority of each resource of the at least two resources in a power saving operation; The control unit is configured to perform the power saving operation according to the determined power saving level.

2. The network side device according to claim 1, wherein: The multiple resources include at least two of time domain resources, frequency domain resources, space domain resources, power domain resources and component resources of a network side device.

3. The network side device according to claim 1, wherein: The predicted traffic volume is the traffic volume corresponding to the first future period; The predetermined power saving level table is a power saving level table predetermined from a plurality of power saving level tables based on the first future 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 among the plurality of power saving level tables further based on the interference level in the first future period.

5. The network side device according to any one of claims 1 to 4, wherein: The priority is determined based on at least one of the power consumption level, energy efficiency, coverage and component shutdown speed of the network side device corresponding to each of the at least two resources corresponding to a second past time period, wherein the second past time period is earlier than the first future time period.

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

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