Active collaborative energy-saving method for 5G base station and backhaul equipment based on LLDP (Link Layer Distribution Protocol) extension protocol

Abstract

The invention belongs to the field of communication energy-saving optimization, and particularly relates to a 5G base station and backhaul equipment active collaborative energy-saving method based on an LLDP (link layer discovery protocol) extension, which comprises the following steps: establishing a base station and backhaul equipment active energy-saving state notification mechanism, constructing an active energy-saving collaborative state machine, discovering protocol LLDP extension based on a link layer, and defining an active notification protocol. The base station and the backhaul device work cooperatively and are switched between a normal working state and an energy-saving state, and the base station and the backhaul device respectively send an active energy-saving state notification and receive the active energy-saving state notification of the opposite side to perform synchronous optimization of the energy-saving state. According to the invention, synchronous conversion and energy-saving optimization of the energy-saving states of the base station and the backhaul device are realized, and the energy-saving cooperative capability is improved.

Description

Technical Field

[0001] The present invention belongs to the field of communication energy-saving optimization, and specifically relates to a 5G base station and backhaul device active collaborative energy-saving method based on the LLDP extended protocol. Background Art

[0002] Compared with 2G-4G technology, 5G technology uses more spectrum resources and gradually uses higher-frequency spectrum, which leads to increased energy consumption. 5G base stations have used a variety of methods to achieve intelligent energy saving, mainly through different degrees of dormancy of base stations to achieve energy saving effects. At the same time, as the transmission capacity of the backhaul equipment connected to the base station increases, the power consumption increases synchronously.

[0003] However, there is currently a lack of methods for 5G base stations and backhaul equipment to collaborate on energy saving. Since 5G base stations and backhaul equipment need to be built according to corresponding peak / average rates, when the 5G base station is in energy-saving mode, there is a lack of active energy-saving notification methods to notify the connected backhaul equipment, which results in the backhaul equipment not being able to work at the most appropriate energy consumption in a timely manner, causing the backhaul equipment to not work at the optimal energy consumption.

[0004] The energy saving scheme for individual base stations and backhaul networks is as follows: (1) Energy-saving solution for a single base station: A single base station dynamically sets the working state of the base station processing unit according to the number of connected users, and achieves energy saving by setting the currently unused processing units to sleep mode.

[0005] (2) Energy-saving solution for separate backhaul network: The separate backhaul network equipment sets the working state of the forwarding processing unit according to the currently monitored traffic state, and achieves energy saving by setting the currently unused traffic processing unit to sleep mode.

[0006] The above-mentioned individual energy-saving solutions do not have the ability of collaborative energy-saving. The communicating parties cannot actively inform each other of the energy-saving status, resulting in the energy-saving status not being synchronized in time. There is either a problem of unsynchronized and unoptimized energy-saving effects, or a problem of being unable to synchronize and recover in time after exiting the energy-saving mode.

[0007] Therefore, a method for active collaborative energy saving between 5G base stations and backhaul equipment is studied, which is used for 5G base stations and backhaul equipment to actively coordinate energy-saving states, thereby optimizing the energy consumption of the entire basic network. Summary of the invention

[0008] The technical problem of the present invention is that the prior art lacks a collaborative energy-saving method for base stations and backhaul equipment.

[0009] The purpose of the present invention is to address the above-mentioned problems and provide a 5G base station and backhaul device active collaborative energy-saving method based on the LLDP extended protocol, which realizes energy-saving collaborative optimization of the base station and backhaul device by constructing an active energy-saving status notification mechanism for the base station and backhaul device.

[0010] In order to achieve the above object, the technical solution provided by the present invention is: The active collaborative energy saving method of a 5G base station and a backhaul device based on the LLDP extended protocol includes the following steps: Step 1: Establishing an active energy-saving status notification mechanism for base stations and backhaul devices, the energy-saving status notification mechanism includes: (1) Define an active energy-saving status notification interface based on the Ethernet interface that interconnects the base station and the backhaul device; (2) The base station and the backhaul device respectively send out active energy-saving status notifications in a unidirectional manner to indicate whether the current working state is an energy-saving state and whether it is about to be converted to an energy-saving state; (3) The base station and the backhaul device respectively determine whether the other party's current energy consumption state is an energy-saving state and whether the energy consumption state to be converted is an energy-saving state based on the energy consumption state information in the active energy-saving state notification currently received from the other party; Step 2: Build an active energy-saving collaborative state machine; The state machine includes a normal working state and an energy-saving state; Step 3: Define the active notification protocol based on the Link Layer Discovery Protocol (LLDP) extension; Step 3.1: Select the reserved field of the Link Layer Discovery Protocol Data Unit (LLDPDU) to indicate the energy-saving negotiation capability of the base station and backhaul device; Step 3.2: Based on the type-length-value TLV in the link layer discovery protocol data unit, define and represent the current energy consumption state and next energy consumption state information of the base station and the backhaul device; Step 4: Based on the active energy-saving status notification mechanism of step 1 and the active notification protocol of step 3, the base station and the backhaul device work together and switch between the normal working state and the energy-saving state according to the state machine obtained in step 2. The base station and the backhaul device respectively send out active energy-saving status notifications and receive each other's active energy-saving status notifications, perform active energy-saving operations according to the energy consumption status, and complete the synchronous optimization of the energy-saving status.

[0011] Preferably, in step 2, the energy-saving state includes a sleep state and a partial energy-saving state; the partial energy-saving state determines the sleep degree according to the current communication traffic. Furthermore, in step 2, the state machine switches between the normal working state and the energy-saving state according to the number of users or the transmission capacity. When the number of users is small or the transmission capacity is small, the state machine switches to the energy-saving state.

[0012] Preferably, the active energy-saving collaborative state machine provides work log records to facilitate energy-saving state backtracking and troubleshooting.

[0013] Furthermore, when the active energy-saving cooperative state machine operates abnormally, an abnormal alarm is issued, so that measures can be taken in time to adjust the energy-saving state and ensure that the base station provides stable communication capabilities.

[0014] If one of the 5G base station and the backhaul device does not support active energy-saving negotiation capability notification, the party with active energy-saving negotiation capability uses an active negotiation proxy component to detect the other party's energy-saving status. The active negotiation proxy component determines the other party's energy-saving status by detecting the other party's traffic status and simulates the other party to send an active energy-saving status notification.

[0015] Preferably, in step 3.1, the reserved field of the link layer discovery protocol data unit is selected to represent the energy-saving negotiation capability of the 5G base station and backhaul device, and the existing TLV type is used for extension or a new TLV type is defined for LLDP extension.

[0016] Furthermore, the LLDP extended information content includes current energy consumption state information and next energy consumption state information.

[0017] The energy consumption status information may be a qualitative enumeration type status or a quantitative value type status, and is used to indicate the status information of energy consumption.

[0018] Preferably, step 4 specifically includes the following sub-steps: Step 4.1: The base station and the backhaul device receive each other's active energy-saving status notification; Step 4.2: judging whether the other party's current energy consumption state is an energy-saving state according to the other party's active energy-saving state notification; Step 4.3: judging whether the energy consumption state to be converted by the other party is an energy-saving state according to the active energy-saving state notification of the other party; Step 4.4: If the judgment results of step 4.2 and step 4.3 are both "yes" or the judgment results of step 4.2 and step 4.3 are both "no", then execute step 4.1 and continue to receive the other party's active energy-saving status notification; if the judgment result of step 4.2 is "no" and the judgment result of step 4.3 is "yes", then execute step 4.5; if the judgment result of step 4.2 is "yes" and the judgment result of step 4.3 is "no", then execute step 4.6; Step 4.5: Switch the energy-saving state synchronously, set the current state to the energy-saving state and issue an active energy-saving state notification, and execute step 4.1; Step 4.6: The energy consumption state is switched synchronously, the current energy consumption state is set to the normal working state and a notification is issued, and step 4.1 is executed.

[0019] Preferably, in step 4, the frequency of active energy-saving state notification is optimized according to the current energy consumption state and the energy consumption state to be switched. When no energy consumption state switching occurs, a low notification frequency is adopted, such as an active energy-saving state notification period of 5 seconds, to reduce the protocol processing overhead. When a state switching is about to occur, a high notification frequency is switched to, such as an active energy-saving state notification period of 100 milliseconds.

[0020] Preferably, in order to improve the reliability of energy-saving state notifications, three active energy-saving state notifications are sent continuously for the same energy consumption state, and the receiver considers that the energy consumption state has been switched if at least two of the three active energy-saving state notifications have state transitions.

[0021] Compared with the prior art, the beneficial effects of the present invention include: 1) The present invention constructs an active energy-saving status notification mechanism for base stations and backhaul devices, constructs an active energy-saving collaborative state machine, and defines an active notification protocol, thereby achieving synchronous conversion and energy-saving optimization of the energy-saving status of base stations and backhaul devices, and improving energy-saving collaborative capabilities.

[0022] 2) The present invention constructs an active energy-saving collaborative state machine. The base station and the backhaul device switch between normal working state and energy-saving state according to the number of users or the transmission capacity. When the number of users is small or the transmission capacity is small, the active energy-saving collaborative state machine switches to the energy-saving state and determines the sleep degree according to the current communication traffic. This can achieve energy saving while ensuring the communication capabilities of the base station and the backhaul device.

[0023] 3) The active energy-saving collaborative state machine of the present invention provides work log records, can trace back the energy-saving state, and is convenient for troubleshooting; the active energy-saving collaborative state machine can issue abnormal alarms under abnormal working conditions, which is convenient for taking timely measures to adjust the energy-saving state, and helps to ensure that the base station provides stable communication capabilities.

[0024] 4) The active negotiation proxy component provided by the present invention determines the energy-saving state of the other party by detecting the traffic state of the other party in communication, and can simulate the base station or backhaul device to issue an active energy-saving state notification. It is suitable for situations where one of the base station and the backhaul device does not support active energy-saving negotiation capability notification, which increases the applicability of the method of the present invention.

[0025] 5) The present invention is based on the extension of the link layer discovery protocol LLDP, defines an active notification protocol, uses the reserved field of the link layer discovery protocol data unit LLDPDU to indicate the energy-saving negotiation capability of the base station and the backhaul device, and uses the TLV data structure to define and indicate the current energy consumption state and the next energy consumption state of the base station and the backhaul device, thereby realizing the standardization of the active notification protocol, improving the versatility, flexibility and scalability, and helping to reduce the energy consumption of the entire communication network, improve network energy efficiency, reduce operating costs, and promote green communications.

[0026] 6) The active collaborative energy-saving notification system of the present invention can intelligently switch between normal working state and energy-saving state in real time according to the current energy consumption state of the base station and backhaul equipment and the energy consumption state to be converted through the collaborative state machine, thereby ensuring efficient utilization of energy while maintaining the performance of the communication network; the present invention realizes efficient management of energy consumption through the energy-saving collaborative mechanism, reduces network interruption or performance degradation caused by switching of equipment energy-saving states, thereby improving the user's network experience, is suitable for 5G communication, helps promote the sustainable development of the communication industry, and meets the current urgent needs for environmental protection and energy conservation and emission reduction.

[0027] 7) The present invention further enhances the energy-saving coordination between the base station and the backhaul device through the pre-notification of the energy-saving state. By notifying the other party in advance of the energy-saving state to be switched, sufficient time is provided for the other party's device to prepare and adjust, which can effectively avoid the degradation or interruption of the communication performance of the base station and the backhaul device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 It is a schematic diagram of an active energy-saving state notification mechanism of a base station and a backhaul device according to an embodiment of the present invention.

[0030] Figure 2 A schematic diagram of a process for synchronously optimizing energy-saving states of a base station and a backhaul device according to an embodiment of the present invention.

[0031] Figure 3 A schematic diagram of the link layer discovery protocol format.

[0032] Figure 4 The diagram is a schematic diagram of defining and expressing active energy-saving negotiation capability using LLDPDU in an embodiment of the present invention.

[0033] Figure 5 This is a schematic diagram of using an active negotiation agent component to perform active energy-saving status notification in Embodiment 2.

[0034] Figure 6 A schematic diagram of a TLV data format for active energy-saving state notification according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] Embodiment 1 like Figure 1 As shown, the active collaborative energy saving method of 5G base station and backhaul equipment based on LLDP extended protocol includes the following steps: Step 1: Establish an active energy-saving status notification mechanism for 5G base stations and backhaul devices, the energy-saving status notification mechanism includes: (1) Define an active energy-saving status notification interface based on the Ethernet interface between the base station and the backhaul device, such as Figure 1 As shown; (2) Using the 5G base station and backhaul equipment to send out active energy-saving status notifications in a unidirectional manner to indicate whether the current energy consumption state is an energy-saving state and whether it is about to be converted to an energy-saving state; (3) The 5G base station and the backhaul device respectively determine whether the other party's current working state is an energy-saving state and whether the working state to be converted is an energy-saving state based on the working state information in the active energy-saving state notification currently received from the other party; Step 2: Build an active energy-saving collaborative state machine; The state machine of the embodiment includes a normal working state and an energy saving state; The energy-saving state includes a sleep state and a partial energy-saving state; the partial energy-saving state determines the sleep degree according to the current communication traffic. The state machine of the embodiment switches between a normal working state and a power-saving state according to the number of users or the transmission capacity. When the number of users is small or the transmission capacity is small, the active power-saving coordination state machine switches to the power-saving state.

[0036] The active energy-saving collaborative state machine provides work log records to facilitate energy-saving status backtracking and troubleshooting.

[0037] When the active energy-saving collaborative state machine works abnormally, an abnormal alarm is issued, so that timely measures can be taken to adjust the energy-saving state and ensure that the base station provides stable communication capabilities.

[0038] Step 3: Based on the link layer discovery protocol LLDP extension, define the active notification protocol. The standard LLDP protocol format is as follows: Figure 3 shown.

[0039] Step 3.1: Select the reserved field of the link layer discovery protocol data unit LLDPDU to indicate the energy-saving negotiation capability of the 5G base station and backhaul device.

[0040] In the embodiment, the reserved field of the link layer discovery protocol data unit LLDPDU is selected to represent the energy-saving negotiation capability of the 5G base station and the backhaul device, and the TLV data structure used is {TLV=7, TLV Information string length=4, Chassis ID subtypes, System capabilities, Enabled capabilities}, wherein TLV=7 indicates that the TLV type is the 7th type, TLV Information string length=4 indicates that the character length is 4, Chassis ID subtypes indicates the type of the unique identifier of the device, System capabilities indicates the energy-saving negotiation capability, and Enabled capabilities indicates the enabled state, such as Figure 4 shown.

[0041] Step 3.2: Based on the type-length-value TLV in the link layer discovery protocol data unit, define and represent the current energy consumption state and next energy consumption state information of the 5G base station and backhaul device.

[0042] In the embodiment, the TLV data structure defining and representing the current energy consumption state and the next energy consumption state information of the 5G base station and the backhaul device is {TLV=Extended, TLV Information string, Subtype= Current EnergyState, Current Energy, Sub type= Next Energy State, Next Energy State}, wherein TLV=Extended indicates that the TLV type is an extended type, Subtype indicates a subtype, Current Energy indicates the current energy consumption state, and Next Energy State indicates the next energy consumption state, such as Figure 6 shown.

[0043] Step 4: Based on the active energy-saving state notification mechanism of step 1 and the active notification protocol of step 3, the 5G base station and the backhaul device work together, switch between the normal working state and the energy-saving state according to the state machine obtained in step 2, and perform synchronous optimization of the energy-saving state, such as Figure 2 shown.

[0044] Step 4.1: The base station and the backhaul device receive each other's active energy-saving status notification; Step 4.2: judging whether the other party's current energy consumption state is an energy-saving state according to the other party's active energy-saving state notification; Step 4.3: judging whether the energy consumption state to be converted by the other party is an energy-saving state according to the active energy-saving state notification of the other party; Step 4.4: If the judgment results of step 4.2 and step 4.3 are both "yes" or the judgment results of step 4.2 and step 4.3 are both "no", then execute step 4.1 and continue to receive the other party's active energy-saving status notification; if the judgment result of step 4.2 is "no" and the judgment result of step 4.3 is "yes", then execute step 4.5; if the judgment result of step 4.2 is "yes" and the judgment result of step 4.3 is "no", then execute step 4.6; Step 4.5: Switch the energy-saving state synchronously, set the current state to the energy-saving state and issue an active energy-saving state notification, and execute step 4.1; Step 4.6: The energy consumption state is switched synchronously, the current energy consumption state is set to the normal working state and a notification is issued, and step 4.1 is executed.

[0045] In an embodiment, the frequency of active energy-saving state notification is optimized according to the current energy consumption state and the energy consumption state to be switched. When no energy consumption state switching occurs for a period of time, a low notification frequency is adopted, such as an active energy-saving state notification period of 5 seconds, to reduce the protocol processing overhead. When a state switching is about to occur, it is switched to a high notification frequency, such as an active energy-saving state notification period of 100 milliseconds.

[0046] In order to improve the reliability of energy-saving state notifications, the same energy consumption state is sent three times in succession. The receiving party considers that the energy consumption state has been switched if at least two of the three active energy-saving state notifications have a state transition.

[0047] In an embodiment, the active energy-saving collaborative state machine uses an AI model such as LSTM to predict the communication traffic of the device, and then predict whether the device is about to switch to an energy-saving state.

[0048] Active collaborative energy-saving notification system, including the following modules: Collaborative state machine: The energy consumption state of the collaborative state machine includes normal working state and energy-saving state. The collaborative state machine switches between normal working state and energy-saving state in combination with the current energy consumption state of the other party output by the status notification receiving module and the energy consumption state to be converted, thereby realizing collaborative energy-saving optimization.

[0049] Active notification module: used for base stations and backhaul devices to issue active energy-saving status notifications; active energy-saving status notifications include the current energy consumption status and the energy consumption status to be converted.

[0050] Status notification receiving module: receives the other party's active energy-saving status notification or pre-notification, and performs data analysis on the active energy-saving status notification to obtain the other party's current energy consumption status and the energy consumption status to be converted, and sends the analysis results to the collaborative state machine.

[0051] Pre-notification module: used for base stations and backhaul devices to notify each other in advance of the energy-saving state to be switched. The pre-notification time interval is determined by negotiation between the two parties or set in a pre-set manner.

[0052] Embodiment 2 The difference from Example 1 is that one of the 5G base station and backhaul device in Example 2 does not support active energy-saving negotiation capability notification, and the party with active energy-saving negotiation capability adopts an active negotiation proxy component to detect the other party's energy-saving status. The active negotiation proxy component determines the other party's energy-saving status by detecting the other party's traffic status, and simulates the other party to send an active energy-saving status notification.

[0053] In the embodiment, the backhaul device does not have the active energy-saving negotiation capability. The 5G base station detects the service flow of the backhaul device through the active negotiation proxy component to determine the energy-saving state of the backhaul device, and simulates the backhaul device to issue an active energy-saving state notification, such as Figure 5 shown.

Claims

1. A 5G base station and backhaul device active collaborative energy saving method based on the LLDP extended protocol, characterized in that: The following steps are involved: Step 1: Establishing an active energy-saving status notification mechanism for base stations and backhaul devices, the energy-saving status notification mechanism includes: (1) Define an active energy-saving status notification interface based on the Ethernet interface that interconnects the base station and the backhaul device; (2) The base station and the backhaul device respectively send out active energy-saving status notifications in a unidirectional manner to indicate whether the current working state is an energy-saving state and whether it is about to be converted to an energy-saving state; (3) The base station and the backhaul device respectively determine whether the other party's current energy consumption state is an energy-saving state and whether the energy consumption state to be converted is an energy-saving state based on the energy consumption state information in the active energy-saving state notification currently received from the other party; Step 2: Build an active energy-saving collaborative state machine; The state machine includes a normal working state and an energy-saving state; Step 3: Define an active notification protocol based on the link layer discovery protocol LLDP extension; Step 4: Based on the active energy-saving status notification mechanism of step 1 and the active notification protocol of step 3, the base station and the backhaul device work together and switch between the normal working state and the energy-saving state according to the state machine obtained in step 2. The base station and the backhaul device respectively send out active energy-saving status notifications and receive each other's active energy-saving status notifications, perform active energy-saving operations according to the energy consumption status, and complete the synchronous optimization of the energy-saving status.

2. According to claim 1, the active collaborative energy saving method of 5G base station and backhaul device based on LLDP extended protocol is characterized in that: In step 1, the active energy-saving state notification mechanism also includes a pre-notification: the 5G base station and the backhaul device notify each other in advance of the energy-saving state to be switched, and the time interval of the pre-notification is determined by negotiation between the two parties or set in a preset manner.

3. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 1 or 2, characterized in that: In step 2, the energy-saving state includes a sleep state and a partial energy-saving state; the partial energy-saving state determines the sleep degree according to the current communication traffic.

4. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 3 is characterized in that: In step 2, the state machine switches between a normal working state and a power-saving state according to the number of users or the transmission capacity. When the number of users is small or the transmission capacity is small, the state machine switches to the power-saving state.

5. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 4 is characterized in that: In step 2, the active energy-saving collaborative state machine provides work log records to facilitate energy-saving status backtracking and troubleshooting; the active energy-saving collaborative state machine issues an abnormal alarm when it works abnormally, so as to facilitate timely measures to adjust the energy-saving status and ensure that the base station provides stable communication capabilities.

6. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 4 is characterized in that: The step 3 specifically includes the following sub-steps: Step 3.1: Select the reserved field of the link layer discovery protocol data unit to indicate the energy-saving negotiation capability of the 5G base station and backhaul device; Step 3.2: Based on the type-length-value TLV in the link layer discovery protocol data unit, define and represent the current energy consumption state and next energy consumption state information of the 5G base station and backhaul device.

7. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 6 is characterized in that: In step 3, if one of the 5G base station and the backhaul device does not support active energy-saving negotiation capability notification, the party with active energy-saving negotiation capability uses an active negotiation proxy component to detect the other party's energy-saving status. The active negotiation proxy component determines the other party's energy-saving status by detecting the other party's traffic status and simulates the other party to send an active energy-saving status notification.

8. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 6 or 7, characterized in that: In step 3.1, the reserved field of the link layer discovery protocol data unit is selected to represent the energy-saving negotiation capability of the 5G base station and backhaul device, and the existing TLV type is used for extension or a new TLV type is defined for LLDP extension; the information content of the LLDP extension includes the current energy consumption status information and the next energy consumption status information.

9. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 1 or 2 or 4 or 5 or 6 or 7, characterized in that: The step 4 specifically includes the following sub-steps: Step 4.1: The base station and the backhaul device receive each other's active energy-saving status notification; Step 4.2: judging whether the other party's current energy consumption state is an energy-saving state according to the other party's active energy-saving state notification; Step 4.3: judging whether the energy consumption state to be converted by the other party is an energy-saving state according to the active energy-saving state notification of the other party; Step 4.4: If the judgment results of step 4.2 and step 4.3 are both "yes" or the judgment results of step 4.2 and step 4.3 are both "no", then execute step 4.1 and continue to receive the other party's active energy-saving status notification; if the judgment result of step 4.2 is "no" and the judgment result of step 4.3 is "yes", then execute step 4.5; if the judgment result of step 4.2 is "yes" and the judgment result of step 4.3 is "no", then execute step 4.6; Step 4.5: Switch the energy-saving state synchronously, set the current state to the energy-saving state and issue an active energy-saving state notification, and execute step 4.1; Step 4.6: The energy consumption state is switched synchronously, the current energy consumption state is set to the normal working state and a notification is issued, and step 4.1 is executed.

10. The active collaborative energy saving method for 5G base stations and backhaul devices based on the LLDP extended protocol according to claim 9 is characterized in that: In step 4, the frequency of active energy-saving state notification is optimized according to the current energy consumption state and the energy consumption state to be switched. When the energy consumption state is not switched, a low notification frequency is used; when the energy consumption state is about to switch, a high notification frequency is switched.

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