Control method, apparatus, device, and storage medium

Abstract

A control method, device, equipment and storage medium are disclosed. The method comprises: obtaining resource configuration information of each orthogonal frequency division multiplexing (OFDM) symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol; determining resource utilization of each OFDM symbol by using the obtained resource configuration information of each OFDM symbol; generating control information by using the determined resource utilization of each OFDM symbol; aligning the control information and the OFDM symbol; and the aligned control information is used for controlling the opening and closing of a radio frequency device in the corresponding OFDM symbol.

Description

Technical Field

[0001] This invention relates to the field of wireless technology, and more particularly to a control method, apparatus, device, and storage medium. Background Technology

[0002] Currently, base stations use power detection to check for data transmission on downlink Orthogonal Frequency Division Multiplexing (OFDM) symbols. If no data is being transmitted on a downlink OFDM symbol, power amplifiers and other radio frequency (RF) devices are shut down to reduce static power consumption. However, power detection can only shut down downlink RF devices. Because the power of the received uplink OFDM signal is relatively low and is affected by noise and interference, uplink RF devices cannot be shut down using power detection. Summary of the Invention

[0003] In view of this, embodiments of the present invention aim to provide a control method, apparatus, device, and storage medium.

[0004] The technical solution of this invention is implemented as follows:

[0005] At least one embodiment of the present invention provides a control method, the method comprising:

[0006] Obtain the resource configuration information of each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol;

[0007] Using the acquired resource configuration information of each OFDM symbol, determine the resource utilization rate of each OFDM symbol; using the determined resource utilization rate of each OFDM symbol, generate control information.

[0008] The control information and each OFDM symbol are aligned; the aligned control information is used to control the on and off of the radio frequency devices in the corresponding OFDM symbol.

[0009] Furthermore, according to at least one embodiment of the present invention, the resource configuration information includes resource configuration information of each carrier corresponding to the corresponding OFDM symbol; the step of determining the resource utilization rate of each OFDM symbol using the acquired resource configuration information of each OFDM symbol includes:

[0010] For each OFDM symbol, the resource utilization rate of the corresponding OFDM symbol is determined by using the resource configuration information of each carrier corresponding to the corresponding OFDM symbol.

[0011] Furthermore, according to at least one embodiment of the present invention, generating control information using the determined resource utilization rates of each OFDM symbol includes:

[0012] For each OFDM symbol, when the resource utilization rate of the corresponding OFDM symbol is less than or equal to a first preset threshold, the corresponding OFDM symbol is designated as the first OFDM symbol; when the resource utilization rate of the corresponding OFDM symbol is greater than the first preset threshold, the corresponding OFDM symbol is designated as the second OFDM symbol.

[0013] Send a request message; the request message is used to request that the data carried by the first OFDM symbol be scheduled to the second OFDM symbol for transmission.

[0014] After scheduling the data carried by the first OFDM symbol to the second OFDM symbol for transmission, the updated resource configuration information of each OFDM symbol is obtained; and the resource utilization rate of each OFDM symbol is re-determined using the updated resource configuration information of each OFDM symbol.

[0015] Control information is generated using the redefined resource utilization rates of each OFDM symbol.

[0016] Furthermore, according to at least one embodiment of the present invention, generating control information using the re-determined resource utilization of each OFDM symbol includes:

[0017] For each OFDM symbol, if the resource utilization rate of the re-determined OFDM symbol is greater than the second preset threshold, then the preset first value is used as the control bit; if the resource utilization rate of the re-determined OFDM symbol is less than or equal to the second preset threshold, then the preset second value is used as the control bit.

[0018] Based on the control bits, control information is generated.

[0019] Furthermore, according to at least one embodiment of the present invention, the method further includes:

[0020] Obtain the first enable signal;

[0021] When the first enable signal is valid, the clock signal of the radio frequency device is controlled based on the control information to control the turning on and off of the radio frequency device.

[0022] Furthermore, according to at least one embodiment of the present invention, the method further includes:

[0023] Obtain the second enable signal;

[0024] When the second enable signal is valid, the power supply signal of the radio frequency device is controlled based on the control information to control the turning on and off of the radio frequency device.

[0025] This invention provides a control device, comprising:

[0026] The acquisition unit is used to acquire resource configuration information for each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol.

[0027] The generation unit is used to determine the resource utilization rate of each OFDM symbol by using the acquired resource configuration information of each OFDM symbol; and to generate control information by using the determined resource utilization rate of each OFDM symbol.

[0028] The alignment unit is used to align the control information and each OFDM symbol; the aligned control information is used to control the on and off of the radio frequency device in the corresponding OFDM symbol.

[0029] At least one embodiment of the present invention provides a network device, comprising:

[0030] A communication interface is used to obtain resource configuration information for each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol.

[0031] The processor is configured to determine the resource utilization rate of each OFDM symbol by using the acquired resource configuration information of each OFDM symbol; generate control information by using the determined resource utilization rate of each OFDM symbol; and align the control information with each OFDM symbol; the aligned control information is used to control the on and off of radio frequency devices in the corresponding OFDM symbol.

[0032] At least one embodiment of the present invention provides a network device, including a processor and a memory for storing a computer program capable of running on the processor.

[0033] Wherein, when the processor is used to run the computer program, it executes the steps of any of the methods described above on the network device side.

[0034] At least one embodiment of the present invention provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above methods.

[0035] The control method, apparatus, device, and storage medium provided in this invention acquire resource configuration information of each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol; using the acquired resource configuration information of each OFDM symbol, the resource utilization rate of each OFDM symbol is determined; using the determined resource utilization rate of each OFDM symbol, control information is generated; the control information and each OFDM symbol are aligned; the aligned control information is used to control the on / off state of radio frequency devices in the corresponding OFDM symbol. By adopting the technical solution provided in this invention, control information is generated based on the resource configuration information of each uplink OFDM symbol or downlink OFDM symbol. Thus, the control information can be used to control the shutdown of radio frequency devices in the uplink or downlink, solving the problem in related technologies where power detection cannot achieve the shutdown of uplink radio frequency devices. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the system architecture for applying the control method of this invention.

[0037] Figure 2 This is a schematic diagram illustrating the implementation flow of the control method according to an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the composition structure of the control device according to an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the specific composition and structure of the control device in an embodiment of the present invention. Figure 1 ;

[0040] Figure 5 This is a schematic diagram of the control information generated in an embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the specific composition and structure of the control device in an embodiment of the present invention. Figure 2 ;

[0042] Figure 7 This is a schematic diagram of the specific composition and structure of the control device in an embodiment of the present invention. Figure 3 ;

[0043] Figure 8 This is a schematic diagram of the specific composition and structure of the control device in an embodiment of the present invention. Figure 4 ;

[0044] Figure 9 This is a schematic diagram of the composition structure of a network device according to an embodiment of the present invention. Detailed Implementation

[0045] Before introducing the technical solutions of the embodiments of the present invention, the relevant technologies will be explained first.

[0046] In related technologies, in subframe shutdown technology, when the base station detects that there is no data transmission on some downlink OFDM symbols, it periodically shuts down radio frequency hardware such as power amplifiers to reduce static power consumption; when data scheduling is detected, the radio frequency hardware is restarted to restore normal operation. The time granularity of turning OFDM symbols off or on is at the microsecond (µs) level.

[0047] In related technologies, the downlink data detection mechanism is achieved through downlink power detection. When no downlink power transmission is detected, devices such as the transceiver and power amplifier (PA) are turned off. When downlink power transmission is detected, devices such as the transceiver and PA are turned on.

[0048] However, power detection can only turn off the downlink RF devices. Since the uplink received OFDM symbols are small signals and are affected by noise and interference, power detection cannot turn off the uplink RF devices.

[0049] Based on this, in this embodiment of the invention, resource configuration information of each OFDM symbol is obtained; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol; the resource utilization rate of each OFDM symbol is determined using the obtained resource configuration information of each OFDM symbol; control information is generated using the determined resource utilization rate of each OFDM symbol; the control information and each OFDM symbol are aligned; the aligned control information is used to control the on and off of radio frequency devices in the corresponding OFDM symbol.

[0050] Figure 1 This is a schematic diagram of the system architecture for the application of the control method in an embodiment of the present invention, as shown below. Figure 1 As shown, the system includes:

[0051] The baseband processing unit (BBU) is used to send resource configuration information of each OFDM symbol to the control device; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol.

[0052] A control device is used to acquire resource configuration information of each OFDM symbol transmitted by the BBU; determine the resource utilization rate of each OFDM symbol using the acquired resource configuration information; generate control information using the determined resource utilization rate of each OFDM symbol; align the control information with each OFDM symbol; and use the aligned control information to control the activation and deactivation of radio frequency devices in the active antenna processing unit (AAU) / radio remote unit (RRU) of the corresponding OFDM symbol.

[0053] It should be noted that the control device can be flexibly deployed in the BBU, or in the AAU / RRU; or the control device can be deployed independently, that is, the control device is added between the BBU and the AAU / RRU, and can control the on and off of some or all of the radio frequency devices in the AAU / RRU.

[0054] It should be noted that when the control device is deployed in the BBU, the resource configuration information of each OFDM symbol can be transmitted to the AAU / RRU through the interface between the BBU and the AAU / RRU, such as the Common Public Radio Interface (CPRI). The AAU / RRU then generates control information based on the resource configuration information of each OFDM symbol.

[0055] Figure 2 This is a schematic diagram illustrating the implementation flow of the control method according to an embodiment of the present invention, applied to a control device, such as... Figure 2 As shown, the method includes steps 201 to 203:

[0056] Step 201: Obtain the resource configuration information of each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol.

[0057] It is understood that the control device can obtain resource configuration information for each OFDM symbol from the BBU.

[0058] It is understood that the resource configuration information may refer to the resource configuration information of each carrier corresponding to the corresponding OFDM symbol.

[0059] Furthermore, the resource configuration information for each carrier corresponding to the corresponding OFDM symbol may include the bandwidth configuration of each carrier, the number of resource blocks (RBs) scheduled for each carrier, and so on.

[0060] Step 202: Using the acquired resource configuration information of each OFDM symbol, determine the resource utilization rate of each OFDM symbol; using the determined resource utilization rate of each OFDM symbol, generate control information.

[0061] In practical applications, the resource utilization rate of each OFDM symbol can be determined by using the resource configuration information of each carrier corresponding to each OFDM symbol.

[0062] Based on this, in one embodiment, the resource configuration information includes resource configuration information for each carrier corresponding to the corresponding OFDM symbol; determining the resource utilization rate of each OFDM symbol using the acquired resource configuration information of each OFDM symbol includes:

[0063] For each OFDM symbol, the resource utilization rate of the corresponding OFDM symbol is determined by using the resource configuration information of each carrier corresponding to the corresponding OFDM symbol.

[0064] It is understandable that the resource configuration information of each carrier corresponding to the corresponding OFDM symbol may include the bandwidth configuration of each carrier and the number of RBs scheduled for each carrier.

[0065] It is understood that the resource utilization rate may refer to the utilization rate of Physical Resource Blocks (PRBs).

[0066] It is understandable that the resource utilization rate of the corresponding OFDM symbol can be determined by using the resource configuration information of each carrier corresponding to the corresponding OFDM symbol. Specifically, this may include:

[0067] First, based on the bandwidth configuration of each carrier, calculate the total number of RBs for each carrier.

[0068] Specifically, the total number of RBs for each carrier is calculated according to formula (1), as follows:

[0069] The bandwidth of the carrier = subcarrier width × number of subcarriers per RB × number of RBs (1)

[0070] Here, the number of RBs represents the total number of RBs for the corresponding carrier. The subcarrier width and the number of subcarriers per RB can be pre-configured.

[0071] Second, sum the total number of RBs for each carrier to obtain the first value.

[0072] Third, sum the number of RBs scheduled for each carrier to obtain the second value.

[0073] Fourth, the second value and the first value are divided to obtain a ratio; the obtained ratio is used as the resource utilization rate of the corresponding OFDM symbol.

[0074] For example, suppose an OFDM symbol corresponds to three carriers, denoted as carrier 1, carrier 2, and carrier 3. Carrier 1 has a bandwidth of 10 kHz and 10 RBs are scheduled for it; carrier 2 has a bandwidth of 15 kHz and 10 RBs are scheduled for it; and carrier 3 has a bandwidth of 20 kHz and 10 RBs are scheduled for it.

[0075] Here, the process of calculating the resource utilization rate of OFDM symbols using the resource configuration information of three carriers specifically includes:

[0076] First, assuming that the bandwidth of carrier 1 is 10KHz, the total number of RBs of carrier 1 is 15; the bandwidth of carrier 2 is 15KHz, the total number of RBs of carrier 2 is 15; and the bandwidth of carrier 3 is 20KHz, the total number of RBs of carrier 3 is 15.

[0077] Second, sum the total number of RBs for carrier 1, carrier 2, and carrier 3, i.e., 15 + 15 + 15 = 45.

[0078] Third, sum the number of RBs scheduled for carrier 1, carrier 2, and carrier 3, i.e., 10 + 10 + 10 = 30.

[0079] Fourth, 30 / 45 = 66.7% is taken as the resource utilization rate of this OFDM symbol.

[0080] In practical applications, considering that if an OFDM symbol transmits and receives relatively little data, it does not need to remain active; that is, the OFDM symbol can be turned off. Conversely, if an OFDM symbol transmits and receives a large amount of data, it can remain active. Therefore, the need to schedule data carried by an OFDM symbol can be determined based on whether its resource utilization is less than or equal to a first preset threshold. When it is determined that data scheduling is necessary, the BBU can be notified to schedule data carried on OFDM symbols with lower resource utilization to OFDM symbols with higher resource utilization for transmission, and the updated resource configuration information for each OFDM symbol sent by the BBU can be obtained.

[0081] Based on this, in one embodiment, generating control information using the determined resource utilization rates of each OFDM symbol includes:

[0082] For each OFDM symbol, when the resource utilization rate of the corresponding OFDM symbol is less than or equal to a first preset threshold, the corresponding OFDM symbol is designated as the first OFDM symbol; when the resource utilization rate of the corresponding OFDM symbol is greater than the first preset threshold, the corresponding OFDM symbol is designated as the second OFDM symbol.

[0083] Send a request message; the request message is used to request that the data carried by the first OFDM symbol be scheduled to the second OFDM symbol for transmission.

[0084] After scheduling the data carried by the first OFDM symbol to the second OFDM symbol for transmission, the updated resource configuration information of each OFDM symbol is obtained; and the resource utilization rate of each OFDM symbol is re-determined using the updated resource configuration information of each OFDM symbol.

[0085] Control information is generated using the redefined resource utilization rates of each OFDM symbol.

[0086] It is understandable that determining whether an OFDM symbol is the first OFDM symbol can specifically include:

[0087] Determine whether the resource utilization rate of OFDM symbols is less than or equal to a first preset threshold;

[0088] When the resource utilization rate of an OFDM symbol is determined to be less than or equal to a first preset threshold, the corresponding OFDM symbol is designated as the first OFDM symbol; otherwise, the corresponding OFDM symbol is designated as the second OFDM symbol.

[0089] For example, assuming the first preset threshold is 30%, if the resource utilization rate of an OFDM symbol is 20%, since the resource utilization rate of the OFDM symbol is less than the first preset threshold, the OFDM symbol is determined to be the first OFDM symbol; if the resource utilization rate of an OFDM symbol is 40%, since the resource utilization rate of the OFDM symbol is greater than the first preset threshold, the OFDM symbol is determined to be the second OFDM symbol.

[0090] In other words, when it is determined that the resource utilization rate of an OFDM symbol is less than or equal to a first preset threshold, it can be determined that the data carried by the OFDM symbol needs to be scheduled to an OFDM symbol with a resource utilization rate greater than the first preset threshold for transmission.

[0091] Furthermore, when it is determined that the data carried by the first OFDM symbol needs to be scheduled to the corresponding second OFDM symbol for transmission, the BBU can be notified to implement data scheduling and obtain the updated resource configuration information of each OFDM symbol sent by the BBU.

[0092] It should be noted that the BBU implements data scheduling, which may specifically include:

[0093] First, from the multiple carriers corresponding to the second OFDM symbol, find the carrier that does not carry data.

[0094] Second, if the multiple carriers corresponding to the second OFDM symbol include carriers that do not carry data, then the data carried by the first OFDM symbol will be scheduled to be transmitted on the carriers in the second OFDM symbol that do not carry data.

[0095] Third, if the multiple carriers corresponding to the second OFDM symbol do not include carriers that do not carry data, then a carrier that can continue to carry data is found from the multiple carriers corresponding to the second OFDM symbol, and the data carried by the first OFDM symbol is scheduled to be transmitted on a carrier in the second OFDM symbol that can continue to carry data.

[0096] For example, suppose the first OFDM symbol corresponds to three carriers, denoted as carrier 1, carrier 2, and carrier 3, where carrier 1 has no data, carrier 2 has no data, and carrier 3 has 50% of the data; the second OFDM symbol corresponds to three carriers, denoted as carrier 1, carrier 2, and carrier 3, where carrier 1 has no data, carrier 2 has 40% of the data, and carrier 3 has 60% of the data. Then, the data carried on carrier 3 of the first OFDM symbol will be preferentially scheduled to carrier 1 of the second OFDM symbol for transmission. If carrier 1 of the second OFDM symbol cannot carry all the scheduled data, the data will be scheduled to carriers 1 and 2 of the second OFDM symbol for transmission. If carriers 1 and 2 of the second OFDM symbol cannot carry all the scheduled data, the data will be scheduled to carriers 1, 2, and 3 of the second OFDM symbol for transmission.

[0097] It should be noted that, for a first OFDM symbol, if a second OFDM symbol cannot carry all the data of the first OFDM symbol, then multiple second OFDM symbols are used to carry all the data of the first OFDM symbol.

[0098] In practical applications, after the data carried by the first OFDM symbol is scheduled for transmission to the second OFDM symbol, the resource utilization of the first OFDM symbol decreases because the number of RBs scheduled for each carrier corresponding to the first OFDM symbol decreases. If the reduced resource utilization is less than a second preset threshold, the first OFDM symbol is shut down. Similarly, after the data carried by the first OFDM symbol is scheduled for transmission to the second OFDM symbol, the resource utilization of the second OFDM symbol increases because the number of RBs scheduled for each carrier corresponding to the second OFDM symbol increases. If the increased resource utilization is greater than or equal to the second preset threshold, the second OFDM symbol is turned on.

[0099] Based on this, in one embodiment, generating control information using the redefined resource utilization rates of each OFDM symbol includes:

[0100] For each OFDM symbol, if the resource utilization rate of the re-determined OFDM symbol is greater than the second preset threshold, then the preset first value is used as the control bit; if the resource utilization rate of the re-determined OFDM symbol is less than or equal to the second preset threshold, then the preset second value is used as the control bit.

[0101] Based on the control bits, control information is generated.

[0102] It is understood that the preset first value can be 1, and the preset second value can be 0.

[0103] It should be noted that the control bits can also be determined based on the number of RBs scheduled for each carrier corresponding to the corresponding OFDM symbol.

[0104] Specifically, if the number of RBs scheduled for each carrier corresponding to the corresponding OFDM symbol is not all 0, then the first preset value is used as the control bit; if the number of RBs scheduled for each carrier corresponding to the corresponding OFDM symbol is all 0, then the second preset value is used as the control bit.

[0105] Step 203: Align the control information with each OFDM symbol; the aligned control information is used to control the on and off of the radio frequency devices in the corresponding OFDM symbol.

[0106] It is understood that the control information and the various OFDM symbols can be aligned in the time domain.

[0107] In practical applications, after aligning the control information and each OFDM symbol, the clock signal of the radio frequency device can be controlled through the control information to control the on and off of the radio frequency device.

[0108] Based on this, in one embodiment, the method further includes:

[0109] Obtain the first enable signal;

[0110] When the first enable signal is valid, the clock signal of the radio frequency device is controlled based on the control information to control the turning on and off of the radio frequency device.

[0111] It is understood that the clock signal of the radio frequency device can be turned on and off based on the control information, thereby realizing the turning on and off of the radio frequency device.

[0112] In practical applications, after aligning the control information and each OFDM symbol, the power supply signal of the radio frequency device can be controlled through the control information to control the on and off of the radio frequency device.

[0113] Based on this, in one embodiment, the method further includes:

[0114] Obtain the second enable signal;

[0115] When the second enable signal is valid, the power supply signal of the radio frequency device is controlled based on the control information to control the turning on and off of the radio frequency device.

[0116] It is understood that the power supply signal of the radio frequency device can be turned on and off based on the control information, thereby realizing the turning on and off of the radio frequency device.

[0117] In this embodiment of the invention, control information is generated based on the resource configuration information of each OFDM symbol, which has the following advantages:

[0118] (1) It can control the shutdown of OFDM symbols in both the uplink and downlink, which can solve the problem that the uplink OFDM symbols cannot be shut down by power detection in related technologies.

[0119] (2) The control information is used to control the shutdown of the radio frequency device, thereby realizing the shutdown of OFDM symbol. This can avoid the problem in the related technology that the device shutdown based on power detection can only shut down some devices after the power detection point and cannot shut down the devices before the detection point, i.e. the shutdown depth is limited, thereby improving the energy saving effect.

[0120] Figure 3 This is a schematic diagram of the composition structure of the control device according to an embodiment of the present invention, as shown below. Figure 3 As shown, the device includes:

[0121] The acquisition unit 31 is used to acquire the resource configuration information of each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol.

[0122] The generation unit 32 is used to determine the resource utilization rate of each OFDM symbol by using the acquired resource configuration information of each OFDM symbol; and to generate control information by using the determined resource utilization rate of each OFDM symbol.

[0123] Alignment unit 33 is used to align the control information and each OFDM symbol; the aligned control information is used to control the on and off of the radio frequency device in the corresponding OFDM symbol.

[0124] In one embodiment, the resource configuration information includes resource configuration information for each carrier corresponding to the corresponding OFDM symbol; the generation unit 31 is specifically used for:

[0125] For each OFDM symbol, the resource utilization rate of the corresponding OFDM symbol is determined by using the resource configuration information of each carrier corresponding to the corresponding OFDM symbol.

[0126] In one embodiment, the generated unit 32 is specifically used for:

[0127] For each OFDM symbol, when the resource utilization rate of the corresponding OFDM symbol is less than or equal to a first preset threshold, the corresponding OFDM symbol is designated as the first OFDM symbol; when the resource utilization rate of the corresponding OFDM symbol is greater than the first preset threshold, the corresponding OFDM symbol is designated as the second OFDM symbol.

[0128] Send a request message; the request message is used to request that the data carried by the first OFDM symbol be scheduled to the second OFDM symbol for transmission.

[0129] After scheduling the data carried by the first OFDM symbol to the second OFDM symbol for transmission, the updated resource configuration information of each OFDM symbol is obtained; and the resource utilization rate of each OFDM symbol is re-determined using the updated resource configuration information of each OFDM symbol.

[0130] Control information is generated using the redefined resource utilization rates of each OFDM symbol.

[0131] In one embodiment, the generation unit 32 is specifically used for:

[0132] For each OFDM symbol, if the resource utilization rate of the re-determined OFDM symbol is greater than the second preset threshold, then the preset first value is used as the control bit; if the resource utilization rate of the re-determined OFDM symbol is less than or equal to the second preset threshold, then the preset second value is used as the control bit.

[0133] Based on the control bits, control information is generated.

[0134] In one embodiment, the device further includes:

[0135] A first control unit is configured to acquire a first enable signal; when the first enable signal is valid, based on the control information, control the clock signal of the radio frequency device to control the on and off of the radio frequency device.

[0136] In one embodiment, the device further includes:

[0137] The second control unit is configured to acquire a second enable signal; when the second enable signal is valid, it controls the power supply signal of the radio frequency device based on the control information to control the on and off of the radio frequency device.

[0138] In practical applications, the acquisition unit 31 can be implemented by the communication interface in the control device; the generation unit 32, the alignment unit 33, the first control unit, and the second control unit can be implemented by the processor in the control device.

[0139] It should be noted that the control device provided in the above embodiments is only illustrated by the division of the above program modules. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the control device and control method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0140] The implementation process of the control method of the present invention is described below with reference to specific embodiments.

[0141] Figure 4 This is a schematic diagram of the specific composition and structure of the control device according to an embodiment of the present invention, as shown below. Figure 4 As shown, the device includes: a resource configuration information processing module (corresponding to acquisition unit 31), a control information generation module (corresponding to generation unit 32), and a time adjustment module (corresponding to alignment unit 33); wherein,

[0142] The resource configuration information processing module is used to obtain the source configuration information of each downlink OFDM symbol provided by the BBU.

[0143] The control information generation module is used to determine the resource utilization rate of each downlink OFDM symbol based on the resource configuration information of each downlink OFDM symbol provided by the BBU, and to determine whether the BBU needs to perform resource rescheduling and allocation based on the resource utilization rate of each downlink OFDM symbol. If resource rescheduling is required, the BBU will re-determine the resource configuration information of each downlink OFDM symbol based on the resource configuration information provided by the BBU after the resource rescheduling, recalculate the resource utilization rate of each downlink OFDM symbol using the re-determined resource configuration information, and generate control information using the recalculated resource utilization rate.

[0144] Specifically, the process of generating control information may include:

[0145] First, based on the resource configuration information of each carrier corresponding to each downlink OFDM symbol provided by the BBU, determine the resource utilization of each downlink OFDM symbol, that is, calculate the PRB utilization rate of each downlink OFDM symbol.

[0146] The resource configuration information for each carrier may include the bandwidth configuration and the RB resource configuration for each carrier, such as the number of RBs.

[0147] Second, for downlink OFDM symbols with PRB utilization less than or equal to the first preset threshold, the resource configuration information processing module notifies the BBU to reschedule.

[0148] Here, the rescheduling can refer to rescheduling data on downlink OFDM symbols with low PRB utilization to downlink OFDM symbols with high PRB utilization for centralized transmission.

[0149] Low PRB utilization rate can mean that the PRB utilization rate is less than or equal to the first preset threshold; high PRB utilization rate can mean that the PRB utilization rate is greater than the first preset threshold.

[0150] Third, update the PRB utilization rate based on the scheduling situation.

[0151] After the BBU performs rescheduling, the updated resource configuration information of each downlink OFDM symbol sent by the BBU is obtained; based on the updated resource configuration information of each downlink OFDM symbol, the PRB utilization rate of each downlink OFDM symbol is re-determined.

[0152] Fourth, based on the recalculated PRB utilization rate, control bits corresponding to each downlink OFDM symbol are generated, and control information is generated based on the control bits.

[0153] Figure 5This is a schematic diagram of the generated control information, such as... Figure 5 As shown, assuming the second preset threshold is 0, if the resource utilization rate of the first downlink OFDM symbol is greater than the second preset threshold (i.e., 0), meaning that the number of RBs scheduled for each carrier corresponding to the first downlink OFDM symbol is not all 0, then 1 is used as a control bit. If the resource utilization rate of the second downlink OFDM symbol is greater than 0, meaning that the number of RBs scheduled for each carrier corresponding to the second downlink OFDM symbol is not all 0, then 1 is used as a control bit. If the resource utilization rate of the third downlink OFDM symbol is greater than 0, meaning that the number of RBs scheduled for each carrier corresponding to the third downlink OFDM symbol is not all 0, then 1 is used as a control bit. If the resource utilization rate of the fourth downlink OFDM symbol is equal to 0, meaning that the number of RBs scheduled for each carrier corresponding to the fourth downlink OFDM symbol is all 0, then 0 is used as a control bit, and so on, the control bits for each downlink OFDM symbol are obtained. Based on these control bits, control information is generated.

[0154] The timing adjustment module is used to synchronize control information with each downlink OFDM symbol in the time domain, and accurately control the on and off of radio frequency devices in the AAU / RRU within the period of the corresponding downlink OFDM symbol.

[0155] Among them, the controllable devices in the AAU / RRU include digital intermediate frequency, downlink transceiver and PA, etc.; the controllable switching parts in the digital intermediate frequency include upconverters (DUC), crest factor reduction (CFR) and digital pre-distortion (DPD), etc.

[0156] Figure 6 This is a schematic diagram of the specific composition and structure of the control device according to an embodiment of the present invention, as shown below. Figure 6 As shown, the device includes: a resource configuration information processing module (corresponding to acquisition unit 31), a control information generation module (corresponding to generation unit 32), and a time adjustment module (corresponding to alignment unit 33); wherein,

[0157] The resource configuration information processing module is used to obtain the resource configuration information of each uplink OFDM symbol provided by the BBU.

[0158] The control information generation module is used to determine the resource utilization rate of each uplink OFDM symbol based on the resource configuration information of each uplink OFDM symbol provided by the BBU, and to determine whether the BBU needs to perform resource rescheduling and allocation based on the resource utilization rate of each uplink OFDM symbol. If resource rescheduling is required, the BBU will re-determine the resource configuration information of each uplink OFDM symbol based on the resource configuration information provided by the BBU after the resource rescheduling, recalculate the resource utilization rate of each uplink OFDM symbol using the re-determined resource configuration information, and generate control information using the recalculated resource utilization rate.

[0159] It should be noted that the process of generating control information based on the resource configuration information of each uplink OFDM symbol is similar to the process of generating control information based on the resource configuration information of each downlink OFDM symbol, and will not be described again here.

[0160] The time adjustment module is used to synchronize control information with each uplink OFDM symbol in the time domain, and accurately control the on and off of radio frequency devices in the AAU within the period of the corresponding uplink OFDM symbol.

[0161] It should be noted that the process of aligning control information with each uplink OFDM symbol is similar to the process of aligning control information with each downlink OFDM symbol, and will not be described in detail here.

[0162] It should be noted that during the process of generating the control information based on the resource configuration information of each OFDM symbol, if the RB of each carrier corresponding to a certain OFDM symbol is an RB occupied by the uplink random access channel (PRACH), then the control radio frequency device is normally open within that OFDM symbol.

[0163] It should be noted that the controllable devices in the AAU / RRU include digital intermediate frequency, uplink transceiver, and low noise amplifier, etc.; the controllable switching part of the digital intermediate frequency includes DDC.

[0164] Figure 7 This is a schematic diagram of the specific composition and structure of the control device according to an embodiment of the present invention, as shown below. Figure 7 As shown, the device includes: a resource configuration information processing module (corresponding to acquisition unit 31), a control information generation module (corresponding to generation unit 32), a time adjustment module (corresponding to alignment unit 33), and a controller (corresponding to the first control unit); wherein,

[0165] The resource configuration information processing module is used to obtain the source configuration information of each downlink OFDM symbol provided by the BBU.

[0166] The control information generation module is used to determine the resource utilization rate of each downlink OFDM symbol based on the resource configuration information of each downlink OFDM symbol provided by the BBU, and to determine whether to perform resource rescheduling and allocation based on the resource utilization rate of each downlink OFDM symbol. If resource rescheduling is required, the resource configuration information of each downlink OFDM symbol is re-determined after the resource rescheduling, and the resource utilization rate of each downlink OFDM symbol is recalculated using the re-determined resource configuration information; and control information is generated using the recalculated resource utilization rate.

[0167] The timing adjustment module is used to synchronize control information with each downlink OFDM symbol in the time domain, and accurately control the on and off of radio frequency devices in the AAU / RRU within the period of the corresponding downlink OFDM symbol.

[0168] The controller is used to switch the various functional modules on and off by turning off the clock.

[0169] Specifically, the controller receives a first enable signal, namely a digital intermediate frequency enable signal, and control information. When the digital intermediate frequency enable signal allows energy-saving shutdown, the control information takes effect to control the clock signals of each radio frequency device in the digital intermediate frequency of the AAU / RRU.

[0170] In other words, in the downlink, each radio frequency device in the digital intermediate frequency circuit shuts off its clock according to the control information, thereby enabling the devices to turn on and off to achieve energy saving.

[0171] It should be noted that in the uplink, the process by which each radio frequency device in the digital intermediate frequency circuit shuts off its clock according to the control information is similar to the implementation process in the downlink.

[0172] Figure 8 This is a schematic diagram of the specific composition and structure of the control device according to an embodiment of the present invention, as shown below. Figure 8 As shown, the device includes: a resource configuration information processing module (corresponding to acquisition unit 31), a control information generation module (corresponding to generation unit 32), a time adjustment module (corresponding to alignment unit 33), and a controller (corresponding to the second control unit); wherein,

[0173] The resource configuration information processing module is used to obtain the source configuration information of each downlink OFDM symbol provided by the BBU.

[0174] The control information generation module is used to determine the resource utilization rate of each downlink OFDM symbol based on the resource configuration information of each downlink OFDM symbol provided by the BBU, and to determine whether the BBU needs to perform resource rescheduling and allocation based on the resource utilization rate of each uplink / downlink OFDM symbol. If the BBU needs to perform resource rescheduling, after the BBU performs resource rescheduling, the module re-determines the resource configuration information of each downlink OFDM symbol based on the resource configuration information provided by the BBU, recalculates the resource utilization rate of each downlink OFDM symbol using the re-determined resource configuration information, and generates control information using the recalculated resource utilization rate.

[0175] The timing adjustment module is used to synchronize control information with each downlink OFDM symbol in the time domain, and accurately control the on and off of radio frequency devices in the AAU / RRU within the period of the corresponding downlink OFDM symbol.

[0176] A controller is used to switch the entire chip of an RF device on and off by turning off the power.

[0177] Specifically, the controller receives a second enable signal, namely a digital intermediate frequency enable signal, and control information. When the digital intermediate frequency enable signal allows energy-saving shutdown, the control information takes effect to control the power signals of each radio frequency device in the digital intermediate frequency of the AAU / RRU.

[0178] In other words, each radio frequency device in the digital intermediate frequency circuit shuts off its power according to the control information, thereby turning each part of the device on and off, reducing the power consumption of the digital intermediate frequency chip from the source and achieving energy saving.

[0179] It should be noted that in the uplink, the process by which each radio frequency device in the digital intermediate frequency circuit shuts down its power according to control information is similar to the implementation process in the downlink.

[0180] This invention also provides a network device, such as... Figure 9 As shown, it includes:

[0181] Communication interface 91 enables information exchange with other devices;

[0182] The processor 92, connected to the communication interface 91, is used to execute the methods provided by one or more technical solutions on the network device side when running a computer program. The computer program is stored in the memory 93.

[0183] It should be noted that the specific processing procedures of the processor 92 and the communication interface 91 are detailed in the method embodiment and will not be repeated here.

[0184] Of course, in practical applications, the various components in network device 90 are coupled together through bus system 94. It can be understood that bus system 94 is used to implement communication between these components. In addition to a data bus, bus system 94 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 9 The general labeled all buses as Bus System 94.

[0185] The memory 93 in this embodiment is used to store various types of data to support the operation of the network device 90. Examples of such data include any computer program used to operate on the network device 90.

[0186] The methods disclosed in the embodiments of this application can be applied to the processor 92, or implemented by the processor 92. The processor 92 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the processor 92. The processor 92 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 92 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the memory 93. The processor 92 reads the information in the memory 93 and completes the steps of the aforementioned method in combination with its hardware.

[0187] In an exemplary embodiment, the network device 90 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0188] It is understood that the memory (memory 93) in the embodiments of this application can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0189] In an exemplary embodiment, the present invention also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a memory that stores a computer program, which can be executed by the processor 92 of the network device 90 to complete the steps described in the aforementioned network device-side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0190] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0191] Furthermore, the technical solutions described in the embodiments of the present invention can be combined arbitrarily without conflict.

[0192] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A control method characterized by, The method comprises: obtaining resource configuration information of each orthogonal frequency division multiplexing (OFDM) symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol, and the resource configuration information comprises resource configuration information of each carrier corresponding to the corresponding OFDM symbol, and the resource configuration information of each carrier comprises bandwidth configuration of each carrier or a number of resource blocks scheduled by each carrier respectively; determining resource utilization of each OFDM symbol by using the obtained resource configuration information of each OFDM symbol; and generating control information by using the determined resource utilization of each OFDM symbol; aligning the control information with the OFDM symbol; and the aligned control information is used for controlling the opening and closing of a radio frequency device in the corresponding OFDM symbol. The method further comprises: after scheduling data carried by a corresponding OFDM symbol with resource utilization less than or equal to a first preset threshold to transmission in a corresponding OFDM symbol with resource utilization greater than the first preset threshold, obtaining updated resource configuration information of each OFDM symbol; and redetermining resource utilization of each OFDM symbol by using the updated resource configuration information of each OFDM symbol. The method further comprises:

2. The method of claim 1, wherein, generating control information by using the redetermined resource utilization of each OFDM symbol. The resource configuration information comprises resource configuration information of each carrier corresponding to the corresponding OFDM symbol; and the method further comprises:

3. The method according to claim 1 or 2, characterized in that, for each OFDM symbol, determining resource utilization of the corresponding OFDM symbol by using the resource configuration information of each carrier corresponding to the corresponding OFDM symbol. The method further comprises: for each OFDM symbol, when resource utilization of the corresponding OFDM symbol is less than or equal to a first preset threshold, taking the corresponding OFDM symbol as a first OFDM symbol; and when resource utilization of the corresponding OFDM symbol is greater than the first preset threshold, taking the corresponding OFDM symbol as a second OFDM symbol; 4. The method of claim 1, wherein, sending a request message; the request message is used for requesting scheduling data carried by the first OFDM symbol to transmission in the second OFDM symbol. The method further comprises: for each OFDM symbol, if redetermined resource utilization of the corresponding OFDM symbol is greater than a second preset threshold, taking a preset first value as a control bit; and if redetermined resource utilization of the corresponding OFDM symbol is less than or equal to the second preset threshold, taking a preset second value as the control bit.

5. The method of claim 1, wherein, generating control information based on the control bit. The method further comprises: obtaining a first enable signal; 6. The method of claim 1, wherein, in a case where the first enable signal is valid, controlling a clock signal of a radio frequency device based on the control information, so as to control the opening and closing of the radio frequency device. The method further comprises: obtaining a second enable signal; controlling a power signal of a radio frequency device based on the control information to control turning on and turning off of the radio frequency device when the second enable signal is valid.

7. A control device characterized by comprising: comprising: an obtaining unit, configured to obtain resource configuration information of each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol, and the resource configuration information comprises resource configuration information of each carrier corresponding to the corresponding OFDM symbol, and the resource configuration information of each carrier comprises bandwidth configuration of each carrier or a number of resource blocks scheduled by each carrier respectively; a generating unit, configured to determine resource utilization of each OFDM symbol by using the obtained resource configuration information of each OFDM symbol, and generate control information by using the determined resource utilization of each OFDM symbol; an aligning unit, configured to align the control information and the each OFDM symbol; the aligned control information is used for controlling turning on and turning off of a radio frequency device in the corresponding OFDM symbol; the generating unit generates the control information by using the determined resource utilization of each OFDM symbol, comprising: after scheduling data carried by the corresponding OFDM symbol with the resource utilization less than or equal to a first preset threshold to transmission of the corresponding OFDM symbol with the resource utilization greater than the first preset threshold, the generating unit obtains updated resource configuration information of each OFDM symbol, and re-determines resource utilization of each OFDM symbol by using the updated resource configuration information of each OFDM symbol, and generates the control information by using the re-determined resource utilization of each OFDM symbol.

8. A network device, comprising: comprising: a communication interface, configured to obtain resource configuration information of each OFDM symbol; the OFDM symbol is an uplink OFDM symbol or a downlink OFDM symbol, and the resource configuration information comprises resource configuration information of each carrier corresponding to the corresponding OFDM symbol, and the resource configuration information of each carrier comprises bandwidth configuration of each carrier or a number of resource blocks scheduled by each carrier respectively; a processor, configured to determine resource utilization of each OFDM symbol by using the obtained resource configuration information of each OFDM symbol, generate control information by using the determined resource utilization of each OFDM symbol, and align the control information and the each OFDM symbol; the aligned control information is used for controlling turning on and turning off of a radio frequency device in the corresponding OFDM symbol; the processor generates the control information by using the determined resource utilization of each OFDM symbol, comprising: after scheduling data carried by the corresponding OFDM symbol with the resource utilization less than or equal to a first preset threshold to transmission of the corresponding OFDM symbol with the resource utilization greater than the first preset threshold, the processor obtains updated resource configuration information of each OFDM symbol, and re-determines resource utilization of each OFDM symbol by using the updated resource configuration information of each OFDM symbol, and generates the control information by using the re-determined resource utilization of each OFDM symbol.

9. A network device, comprising: a processor and memory for storing a computer program capable of running on the processor, wherein the processor, when running the computer program, is arranged to perform the steps of the method of any one of claims 1 to 6.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, the computer program, when executed by the processor, implements the steps of the method of any one of claims 1 to 6.

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