CN107852619B

CN107852619B - Method and apparatus for adjusting energy loss of wireless network system

Info

Publication number: CN107852619B
Application number: CN201580081123.5A
Authority: CN
Inventors: 杨科文; 张洁涛; 庄宏成
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-07-30
Filing date: 2015-07-30
Publication date: 2020-02-14
Anticipated expiration: 2035-07-30
Also published as: CN107852619A; WO2017015948A1

Abstract

The embodiment of the invention provides a method and a device for adjusting energy loss of a wireless network system. The method comprises the steps of obtaining first access information, first backhaul information and first working state information of a first base station, obtaining second access information, second backhaul information and second working state information of a second base station, and determining a third access working state and a third backhaul working state of the first base station to enter according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information. The access information is information corresponding to user equipment accessing the base station, the backhaul information is information of a backhaul link between the base station and the backhaul link, and the working state information is used for indicating a current access working state and a backhaul working state of the base station. The embodiment of the invention determines the working state to be entered through the access information, the backhaul information and the working state information, so that the energy loss of the system can be adjusted.

Description

Method and apparatus for adjusting energy loss of wireless network system

Technical Field

The embodiment of the invention relates to the field of wireless network communication, in particular to a method and a device for adjusting energy loss of a wireless network system.

Background

With the increasing service demand in network communication systems, in order to increase the capacity of wireless network systems, intensive deployment of wireless access points becomes a development trend of wireless networks. Due to the mobility of users and the time varying nature of the traffic, the system capacity requirements of the network also change dynamically, and such changes will be more dynamic in dense networks.

When the system capacity requirement is small, for example, the cell load is zero or below a certain threshold, the dense deployment of wireless access points may result in a large loss of system energy in situations where the network usage efficiency is low.

In the conventional method, the access side of some wireless access points is turned off dynamically, and the user equipment served by the wireless access point with a smaller load is switched to other wireless access points, so as to realize energy saving.

However, the wireless access point needs to access the core network through the backhaul, and the backhaul energy consumption of the dense network is not negligible. How to effectively adjust the energy loss of a system and realize energy conservation while fully playing the use efficiency of a network is an urgent problem to be solved.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for adjusting energy loss of a wireless network system, which can adjust energy loss of the system while fully exerting network utilization efficiency.

In a first aspect, a method for adjusting energy consumption of a wireless network system is provided, including obtaining first access information, first backhaul information, and first operating state information of a first base station, and obtaining second access information, second backhaul information, and second operating state information of a second base station, where the first backhaul information is information of a backhaul link of the first base station, the first operating state information is used to indicate a current access operating state and a backhaul operating state of the first base station, the second backhaul information is information of a backhaul link of the second base station, the second operating state information is used to indicate a current access operating state and a backhaul operating state of the second base station, the first access information includes at least one of channel state information, traffic, and quality of service (QoS) corresponding to a user equipment accessing the first base station, the second access information comprises at least one of channel state information, traffic and QoS corresponding to user equipment accessing the second base station; and determining an access working state and a backhaul working state to be entered by the first base station according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information.

With reference to the first aspect, in an implementation manner of the first aspect, the first backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the first base station, and the second backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand of the second base station, where the traffic demand information includes at least one of backhaul traffic volume, backhaul traffic QoS, and backhaul routing information.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the access operating state is a normal access mode, a discontinuous transmission DTX access mode, or an OFF-OFF access mode, and the backhaul operating state is a normal backhaul mode, a DTX backhaul mode, or an OFF backhaul mode.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the acquiring second access information, second backhaul information, and second operating state information of a second base station includes: and receiving the second access information, the second backhaul information and the second working state information sent by the second base station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the method further includes: and sending third working state information to the second base station, wherein the third working state information is used for indicating an access working state and/or a backhaul working state to be entered by the first base station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the method further includes: and configuring user equipment accessed to the first base station according to the access working state and the backhaul working state to be entered by the first base station, and updating a route for backhaul through the first base station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the configuring, according to an access operating state and a backhaul operating state to be entered by the first base station, user equipment accessing the first base station, and updating a route for performing backhaul through the first base station includes: when the access working state to be entered by the first base station is the DTX access mode, configuring the user equipment accessed to the first base station into a Discontinuous Reception (DRX) mode or updating the configuration parameters of the DRX mode of the user equipment accessed to the first base station through air interface signaling; when the access working state to be entered by the first base station is the OFF access mode, switching the user equipment accessed to the first base station to be accessed to other base stations through air interface signaling; and when the backhaul working state to be entered by the first base station is the OFF backhaul mode, switching the service of realizing backhaul through the first base station to realize backhaul through other base stations.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining, according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information, an access operating state and a backhaul operating state of the first base station to enter includes: calculating the transmission time interval TTI number required by the first base station for transmitting the service according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information; and comparing the TTI number with a preset dormant time threshold value, and determining an access working state and a backhaul working state to be entered by the first base station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the method is performed by a controller, and the method further includes: and determining an access working state and a backhaul working state to be entered by the second base station according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the acquiring first access information, first backhaul information, and first operating state information of the first base station, and acquiring second access information, second backhaul information, and second operating state information of the second base station includes: receiving the first access information, the first backhaul information and the first working state information sent by the first base station; and receiving the second access information, the second backhaul information and the second working state information sent by the second base station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the controller is located at a serving gateway SGW, a mobility management entity MME, a software defined network SDN controller, or a base station.

In a second aspect, an apparatus for adjusting energy consumption of a wireless network system is provided, including: an obtaining unit, configured to obtain first access information, first backhaul information, and first working status information of a first base station, and obtain second access information, second backhaul information, and second working status information of a second base station, where the first backhaul information is information of a backhaul link of the first base station, the first working status information is used to indicate a current access working status and a backhaul working status of the first base station, the second backhaul information is information of a backhaul link of the second base station, the second working status information is used to indicate a current access working status and a backhaul working status of the second base station, the first access information includes at least one of channel status information, traffic, and quality of service (QoS) corresponding to a user equipment accessing the first base station, and the second access information includes channel status information, traffic, and quality of service (QoS) corresponding to a user equipment accessing the second base station, At least one of traffic and QoS; a first determining unit, configured to determine an access operating state and a backhaul operating state that the first base station is to enter according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information acquired by the acquiring unit.

With reference to the second aspect, in an implementation manner of the second aspect, the first backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the first base station, and the second backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the second base station, where the traffic demand information includes at least one of backhaul traffic volume, backhaul traffic QoS, and backhaul routing information.

With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the access operating state is a normal access mode, a discontinuous transmission DTX access mode, or an OFF-OFF access mode, and the backhaul operating state is a normal backhaul mode, a DTX backhaul mode, or an OFF backhaul mode.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the apparatus is the first base station, and the obtaining unit is specifically configured to receive the second access information, the second backhaul information, and the second operating state information sent by the second base station.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the apparatus further includes: a sending unit, configured to send third working state information to the second base station, where the third working state information is used to indicate an access working state and/or a backhaul working state that the first base station is to enter.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the apparatus further includes: a configuration unit, configured to configure a ue accessing the first base station according to an access working state and a backhaul working state that the first base station is to enter, and update a route that performs backhaul through the first base station.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the configuration unit is specifically configured to: when the access working state to be entered by the first base station is the DTX access mode, configuring the user equipment accessed to the first base station into a Discontinuous Reception (DRX) mode or updating the configuration parameters of the DRX mode of the user equipment accessed to the first base station through air interface signaling; when the access working state to be entered by the first base station is the OFF access mode, switching the user equipment accessed to the first base station to be accessed to other base stations through air interface signaling; and when the backhaul working state to be entered by the first base station is the OFF backhaul mode, switching the service of realizing backhaul through the first base station to realize backhaul through other base stations.

With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the first determining unit is specifically configured to calculate, according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information, a transmission time interval TTI number required by the first base station for transmitting the service, compare the TTI number with a preset dormancy duration threshold, and determine an access operating state and a backhaul operating state that the first base station is to enter.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the apparatus is a controller, and the apparatus further includes: a second determining unit, configured to determine an access operating state and a backhaul operating state that the second base station is to enter according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the obtaining unit is specifically configured to receive the first access information, the first backhaul information, and the first operating state information sent by the first base station, and receive the second access information, the second backhaul information, and the second operating state information sent by the second base station.

With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the controller is located in a serving gateway SGW, a mobility management entity MME, a software defined network SDN controller, or a base station.

According to the embodiment of the invention, the access working state and the return working state which are about to enter the base station are determined according to the access information of the user accessing each base station in at least two base stations, the return information of each base station and the current working state of each base station, so that the energy loss of the system can be adjusted while the network use efficiency is fully exerted.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a scenario of a communication system to which an embodiment of the present invention may be applied.

Fig. 2 is a schematic flow chart of a method of adjusting energy consumption of a wireless network system according to an embodiment of the present invention.

Fig. 3 is a schematic interaction diagram of a centralized implementation of a method of adjusting energy consumption of a wireless network system according to one embodiment of the invention.

Fig. 4 is a schematic interaction diagram of a distributed implementation of a method of adjusting energy consumption of a wireless network system according to one embodiment of the invention.

Fig. 5 is a schematic flow chart of a base station at each TTI in a wireless network system according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of an operation procedure of a base station in a wireless network system according to an embodiment of the present invention for determining that a current TTI of a corresponding module is in a normal mode.

Fig. 7 is a diagram illustrating an operation procedure of a base station in a wireless network system according to an embodiment of the present invention for determining that a current TTI of a corresponding module is in a DTX mode.

Fig. 8 is a diagram illustrating an operation procedure when a base station determines that a current TTI is in an OFF mode in a wireless network system according to an embodiment of the present invention.

Fig. 9 is a block diagram of an apparatus for adjusting energy loss of a wireless network system according to an embodiment of the present invention.

Fig. 10 is a block diagram of an apparatus for adjusting energy loss of a wireless network system according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

In the embodiment of the present invention, the description of the wireless access point is only given by taking a Base Station (BS) as an example, but the present invention is not limited thereto. It should be understood that the Base Station may be a Base Transceiver Station (BTS) in a Global System for mobile communications (GSM) System or a Code Division Multiple Access (CDMA) System, a Base Station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) System, or an Evolved Node B (ENB or e-NodeB) in a Long Term Evolution (LTE) System, and the present invention is not limited thereto.

User Equipment (UE) may be referred to as a Terminal (Terminal), a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), or the like, and the User Equipment may communicate with one or more core networks through a Radio Access Network (RAN). For example, the user equipment may be a mobile phone (or referred to as a "cellular" phone) or a computer with a mobile terminal, etc. As another example, the user equipment may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device that exchanges voice and/or data with the radio access network.

The communication system of fig. 1 comprises a first macro base station 101, a second macro base station 102, a core network 103, a first micro base station 104, a second micro base station 105, a third micro base station 106, a fourth micro base station 107, a first user equipment 108, a second user equipment 109, a third user equipment 110 and a fourth user equipment 111. The figure shows a wired backhaul with solid lines and a wireless backhaul with dashed lines. The first user equipment 108 and the second user equipment 109 access the network through the first macro base station 101, and the first macro base station 101 is directly connected with the core network 103 to realize backhaul. The third user equipment 110 accesses the network through the third micro base station 106, and the third micro base station 106 realizes backhaul to the core network through the second micro base station 105 and the first macro base station 101. The fourth user equipment 111 accesses the network through the fourth micro base station 107, and the fourth micro base station 107 may implement backhaul to the core network through the second macro base station 102. The fourth micro base station 107 may also implement backhaul to the core network through the second micro base station 105 and the first macro base station 101. Here, the first micro base station 104 does not access the user equipment nor is it on the backhaul route. The second micro base station 105 does not have access to the user equipment. The second macro base station 102 may implement backhaul for the fourth micro base station 107, but this is not essential.

The wireless access point needs to access the core network through the backhaul. Traditionally, the backhaul has been wired-based, but in future dense networks, not every access point can be equipped with a wired backhaul, considering cost, deployment constraints, etc. An access point without a wired backhaul needs to use a wireless backhaul, and is connected to an access point with a wired backhaul through a wireless single hop or multiple hops.

Backhaul energy consumption of dense networks is not negligible. In the multi-hop backhaul, in addition to backhaul transmission of access traffic of the cell, relay backhaul transmission is provided for other cells. If a cell has a low access load, even 0, but if it is located in a position where it can provide well for relaying services to other cells (e.g. closer to an access point or gateway with wired backhaul), it is advantageous from a network-wide point of view to turn off its access module and to continue to turn on its backhaul module.

A small cell in a Long Term Evolution (LTE) system Release 12 may implement fast on/off (on/off) at a subframe level. In addition, many services in the wireless network have delay tolerance characteristics, and the user experience cannot be influenced as long as the services are completed within a delay tolerance range.

For the base station access module connection, if the service delay requirement of the user equipment is not too high at a certain moment (including the delay sensitivity is higher than a certain threshold or non-delay sensitivity), at this time, the access module can be interrupted (or buffered) for a period of time, that is, the access of the base station can be dormant for a short time, and then the service is provided after the dormancy for a period of time, and the user equipment does not need to be handed over to other cells. For the user equipment connected with the new access module, if the base station dormancy time is not too long, the access influence is not great.

For the base station backhaul module, because the receiving module can consume less energy than the transmitting module, and for services with less requirement on transmission delay, the base station can only start the receiving module first, and buffer the received data for a period of time and then transmit the data in a centralized manner. When using multi-hop backhaul, to increase the flexibility of energy saving: the backhaul may be turned off frequently so that the base station sleeps for a short time or for a long time. Therefore, by creating more sleep opportunities for the base station, service transmission and network energy saving can be realized more flexibly.

Based on this, the embodiment of the present invention comprehensively considers the access module and the backhaul module. In this way, the access and the backhaul of the base station 104 in fig. 1 may be both closed, the access of the second micro base station 105 may be closed, and the access and the backhaul of the second macro base station 102 may be both closed, so as to achieve the purpose of saving energy and adjust energy consumption. The embodiment of the invention is based on the access module and the backhaul module in the thought, considers various information such as the current working state of the base station and the like, and then judges the working state to be entered by the base station.

The number of core networks, base stations, and user equipments in the communication system in the embodiment of the present invention is not limited, and the scenario fig. 1 and the embodiments described later in fig. 2 to fig. 10 are only exemplary illustrations.

The method includes 201 obtaining first access information, first backhaul information, and first operating state information of a first base station, and obtaining second access information, second backhaul information, and second operating state information of a second base station. The first access information comprises at least one of channel state information, traffic and quality of service (QoS) corresponding to user equipment accessing the first base station. The first backhaul information is information of a backhaul link of the first base station. The first operating state information is used for indicating the current access operating state and the backhaul operating state of the first base station. The second access information includes at least one of channel state information, traffic and QoS corresponding to the user equipment accessing the second base station. The second backhaul information is information of a backhaul link of the second base station. The second operating state information is used for indicating the current access operating state and the backhaul operating state of the second base station.

202, determining an access working state and a backhaul working state to be entered by the first base station according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information, and the second working state information.

According to the embodiment of the invention, the access working state and the return working state which are about to enter the base station are determined according to the access information of the user accessing each base station in at least two base stations, the return information of each base station and the current working state of each base station, so that the energy loss of the system can be reduced while the network use efficiency is fully exerted.

The access information may be information corresponding to a user equipment accessing the base station. Optionally, the first access information includes at least one of first channel state information, first traffic and first quality of Service (QoS) corresponding to a ue accessing the first base station, and the second access information includes at least one of second channel state information, second traffic and second QoS corresponding to a ue accessing the second base station.

Optionally, the first QoS includes at least one of a first service latency, a first transmission rate, and a first packet loss rate, and the second QoS includes at least one of a second service latency, a second transmission rate, and a second packet loss rate.

The first and second embodiments of the present invention are only used to distinguish information corresponding to different base stations. There may be one, two or more services for the same user equipment. The first service delay in the embodiment of the present invention is a service delay of at least one service of a user equipment accessing to the first base station. Similarly, the second service delay is a service delay of at least one service of the user equipment accessing the second base station.

The backhaul information is information of a backhaul link between the base station and a core network or other base stations. In the embodiment of the present invention, the backhaul information (i.e., the first backhaul information) of the first base station is information of a backhaul link of the first base station. The second backhaul information is information of a backhaul link of the second base station. Optionally, the first backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the first base station. The second backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand of the second base station. Wherein the traffic demand information includes at least one of backhaul traffic volume, backhaul traffic QoS, and backhaul routing information.

In an embodiment of the present invention, the operating state of the base station may be divided into three modes according to energy saving levels, for example, different energy consumption levels, transition durations, sleep durations, and the like: a normal mode, a Discontinuous Transmission (DTX) mode, and an OFF mode. Specifically, the access operation state may be a normal access mode, a DTX access mode, or an OFF access mode. The backhaul working state can be a normal backhaul mode, a DTX backhaul mode, and an OFF backhaul mode. Note that in the present invention, "operating state" and "operating mode" may be used interchangeably.

Optionally, as an embodiment, the access operation state may be a normal access mode, a DTX access mode, or an OFF access mode, and the backhaul operation state may be a normal backhaul mode, a DTX backhaul mode, or an OFF backhaul mode.

The three modes are described in detail below.

The normal mode may include that the transmitting unit and the receiving unit in the access module and the backhaul module both work normally and can transmit/receive data normally.

The DTX mode may also be referred to as a brief sleep mode, and sleep at a subframe level may be implemented. For the access module, the receiving unit during the DTX mode sleep period may operate normally or may be turned off, and the transmitting unit may turn off or transmit only a small number of necessary signals such as synchronization signals, discovery signals, and the like; for the access module, the transmitting unit may normally transmit data during DTX mode activation. While the base station is in DTX mode, there is no need to handover its serving users to other cells (here, handover due to link quality degradation may not be included). For the backhaul module, a receiving unit in the DTX mode (including a sleep period and an active period) may be turned on to receive signals or data transmitted by other nodes, or signals transmitted by a controller or an operation and Maintenance unit (OAM), and the like. The transmitting unit may turn off or transmit only a small amount of necessary signals such as a synchronization signal, a discovery signal, etc. during the DTX mode sleep period, and the transmitting unit may normally transmit data during the DTX mode active period. When the base station is in DTX backhaul mode, the backhaul route using the relay data of the base station does not need to be changed.

Alternatively, as an example, the period of the DTX mode may be a continuous sleep time followed by a continuous active time, as shown in table 1. Table 1 illustrates information of the DTX mode by taking the 3GPP TS36.423 format as an example.

In addition, the period of the DTX mode may be any pattern (pattern), that is, the sleep time is not necessarily continuous, and the active time is not necessarily continuous in one period. The period is represented in the form of a bitmap, the time granularity may be a Transmission Time Interval (TTI), and each bit may indicate whether a corresponding TTI is dormant or active, as shown in table 2. Table 2 illustrates information of the DTX mode by taking the 3GPP TS36.423 format as an example.

The Information Element (IE) or IE group name indication in table 1 and table 2 includes a DTX pattern (pattern). Presence may be used to indicate whether the IE or IE group must be present. The information element type and reference (IE type and reference) is used to indicate the IE type and value range. The semantic description (semantic description) is used to describe the semantics of an IE or IE group name.

The maximum continuous time length or the maximum time length in table 1 and table 2 may be a fixed value, and may be set in advance. For example, assuming that the period of DTX does not exceed 1 minute, the maximum continuous time period or the maximum time may be set to 60000 or more.

TABLE 1

TABLE 2

The OFF mode may also be referred to as a deep sleep mode, which may be a sleep on the order of minutes or hours. In general, both the receiving unit and the transmitting unit of the OFF mode may be turned OFF. For the backhaul module, considering that the energy consumption of the receiving module is low relative to the transmitting module, when energy saving is required, it may be prioritized to turn off the transmitting unit. Therefore, the receiver in the OFF mode can also be selectively turned on when the receiver has a small energy loss. Before the base station access module enters the OFF mode, the users served by the base station access module must be switched to other cells. Before the base station backhaul module enters the OFF mode, the backhaul route using the relay data of the base station needs to be updated, that is, other base stations cannot use the backhaul data of the base station.

Normally, the normal mode cannot go directly to the OFF mode, and a transition through the DTX mode is required. That is, when the normal mode is to enter the power saving mode, the DTX mode may be entered first. When the number of continuous periods of the DTX mode exceeds a certain preset value, it may be considered to switch the DTX mode to the OFF mode. Either the DTX mode or the OFF mode may be directly entered into the normal mode.

The operating state modes of both the access module and the backhaul module may be different, for example, when the access module is in an OFF mode, the backhaul module may be in a normal mode, a DTX mode, or an OFF mode. However, generally, when the access module is in the normal mode or the DTX mode, the backhaul should not enter the OFF mode, that is, for the same base station, if the access module does not enter the OFF mode, the backhaul module should not enter the OFF mode either.

The mode information of the operating state of the base station in the embodiment of the present invention may be defined as in table 3 below. The DTX pattern (pattern) in table 3 is a newly introduced Information Element (IE), and a possible embodiment is shown in table 1 or table 2.

In table 3, the OFF duration or OFF duration may be in the form of an Integer (Integer) or a predefined series of enumerated values. The range in which the OFF period can be set should be large enough to satisfy more flexible power saving operation.

The information element IE or IE group name in table 3 indicates the name of the IE or IE group. Here, the IE group is operation mode information (work mode information), and includes IEs including a start time (start time), an operation mode (work mode), a DTX pattern, and an OFF duration (duration). Presence may be used to indicate whether the IE or IE group must be present. The information element type and reference (IE type and reference) is used to indicate the IE type and value range. The semantic description (semantics description) is used to describe the semantics of an IE or IE group name.

When the "work mode" IE in table 3 is set to "DTX," a "DTX pattern" IE must exist. When the "work mode" IE in table 3 is set to "OFF", an "OFF duration (OFFduration)" IE must exist.

TABLE 3

It should be understood that the method of fig. 2 may be performed by the first base station, and may also be performed by the controller. When the method of fig. 2 is executed by the first base station, each base station may make a decision on the working state to be entered by itself according to its own access information, backhaul information, and current working state, and the received access information, backhaul information, and current working state of other base stations. When the method of fig. 2 is executed by the controller, the controller may make a decision on the operation state to be entered by all the base stations according to the access information, backhaul information and current operation state of all the base stations. When the controller makes a decision in a unified way, the controller stores the information of all the base stations, so that the decision result obtained by the decision of the base stations is more favorable for realizing energy conservation, but the realization complexity is relatively higher.

When the method of fig. 2 is executed by the first base station, the acquiring second access information, second backhaul information, and current second operating state information of the second base station in step 201 may include receiving the second access information, the second backhaul information, and the second operating state information sent by the second base station. That is, the second base station may transmit the second access information, the second backhaul information, and the second operating state information of the second base station to the first base station.

The mutual information (including the mutual access information, the backhaul information and the working state) between the base stations can be transmitted by modifying the messages in the existing protocol or introducing new messages to carry the mutual information. For example, in the LTE system, the base stations may exchange Information by modifying the existing X2AP message, such as introducing a new Information Element (IE), or introducing a new X2AP message.

Table 4 gives an example of information exchange by introducing a new X2 interface Application Protocol (X2 Application Protocol, X2AP) message, and gives a working MODE UPDATE (WORK MODE UPDATE) message, and the message format refers to 3GPP TS 36.423.

TABLE 4

In table 4, EACH IE/IE group has information on key level (criticality), in the table, "YES" indicates that the non-repeated IE has information on key level, "-" indicates that there is no criticality information, and "EACH IE/IE group has respective criticality information. The Criticality of the allocation (Assigned Criticality) may indicate the operation of the recipient when an unintelligible IE or set of IEs is received, with "ignore" and "reject" indicating rejection in table 4.

The operating mode information (Work mode info) in table 4 is a newly introduced IE group, one possible example is shown in table 3. Table 4 is designed based on that one base station may serve multiple cells, the operation mode change of each serving cell is not necessarily the same, and the operation mode change of access and backhaul of the same cell may be different. When the operation mode of the base station is changed and the neighbor base station is informed, the operation mode of only those cells of the neighbor base station in which the operation mode is changed can be informed. For the cell with the changed operation mode, it needs to indicate whether the mode of the operation state of the access module or the backhaul module is changed or both are changed.

It should be understood that a system may include a plurality of base stations, and in the embodiment of the present invention, the system includes two base stations as an example. When the number of the base stations in the system is multiple, the first base station can also acquire access information, backhaul information and current working state information of other base stations, and determine the working state to be entered according to the acquired access information, backhaul information and current working state information of all the base stations.

After the first base station decides to obtain the access working state and the backhaul working state to be entered by itself in step 202, third working state information may be sent to the second base station, where the third working state information is used to indicate the access working state and/or the backhaul working state to be entered by the first base station. Therefore, when the second base station decides the working state of the second base station, the changed working state of the first base station can be considered in time, and the control efficiency of energy loss can be further adjusted in time.

In an implementation manner of the embodiment of the present invention, the access and backhaul operating state information is sent to the second base station regardless of whether the access and backhaul operating states change. Another implementation manner of the embodiment of the present invention is that only the working state information of the module whose state is changed is sent, or the working state information of the module whose state is not changed is set to NULL (NULL), and when the second base station does not receive the working state information of the corresponding module, or the working state information of the corresponding module is received as NULL, the working state of the corresponding module of the first base station is considered to be unchanged.

After the first base station decides to obtain the access working state and the backhaul working state to be entered in step 202, the first base station may perform appropriate configuration on the ue accessing the first base station according to the access working state and the backhaul working state to be entered, and update the route for performing backhaul through the first base station.

For example, when the access working state to be entered by the first base station is a Discontinuous transmission DTX access mode, the ue accessing the first base station is configured to be a Discontinuous Reception (DRX) mode or a configuration parameter of the DRX mode of the ue accessing the first base station is updated through an air interface signaling. And when the access working state to be entered by the first base station is an OFF access mode, switching the user equipment accessed to the first base station to be accessed to other base stations through air interface signaling. And when the backhaul working state to be entered by the first base station is an OFF backhaul mode, switching the service for realizing the backhaul through the first base station to realize the backhaul through other base stations.

When the access working state to be entered by the base station is in the normal mode, the user equipment accessed to the base station can be configured into the DRX mode through air interface signaling. Wherein, the configuration parameters of the DRX mode of different user equipments may be different. Thus, by reconfiguring or updating the operating state mode of the UE, further energy saving can be achieved.

In an embodiment of the present invention, the step 202 of determining the access operating state and the backhaul operating state to be entered by the first base station according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information may include: and calculating the Transmission Time Interval (TTI) number required by the first base station for transmitting the service according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information, comparing the TTI with a preset dormancy duration threshold value, and determining an access working state and a backhaul working state which the first base station is to enter.

For example, the access operation state and the backhaul operation state to be entered by the first base station are collectively referred to as a third operation state herein. Presetting a first dormancy duration and a second dormancy duration, wherein the first dormancy duration is less than the second dormancy duration. When the calculated TTI number is less than or equal to the first dormancy duration, determining that the third working state is a normal mode; when the calculated TTI number is greater than the first dormancy duration and less than the second dormancy duration, determining that the third working state is a DTX mode; and when the calculated TTI number is greater than or equal to the second dormancy duration, determining that the third working state is an OFF mode. It should be understood that the third operating state corresponds to a module corresponding to the calculated TTI number, and when the TTI number is calculated for the access module, the access dormant time duration threshold value is also compared with the calculated TTI number, and the determined third operating state is the third access operating state. Similarly, when the number of TTIs is calculated for the backhaul module, the calculated TTI is compared with the sleep duration threshold of the backhaul, and the determined third operating state is the third backhaul operating state.

In general, a TTI refers to the smallest unit of scheduling time, e.g., a TTI in an LTE system may be 1 ms. In the embodiment of the present invention, the time required for meeting the service requirement is generally expressed by the number of TTIs.

When the method of fig. 2 is executed by a controller, the obtaining first access information, first backhaul information, and first operating state information of a first base station, and the obtaining second access information, second backhaul information, and second operating state information of a second base station in step 201 may include receiving the first access information, the first backhaul information, and the first operating state information sent by the first base station, and receiving the second access information, the second backhaul information, and the second operating state information sent by the second base station.

In one embodiment of the present invention, the controller may decide to obtain the operating status of any base station. For example, the controller may determine an access operating state and a backhaul operating state of the second base station to enter according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information.

When the number of the base stations in the system is multiple, the controller can also acquire the access information, the backhaul information and the current working state of other base stations, and determine the working state to be entered by each base station according to the access information, the backhaul information and the current working state of all the base stations.

The controller is a logical entity. Taking Long Term Evolution (LTE) system as an example, optionally, as an embodiment, the controller may be located in a Serving Gateway (SGW), a Mobility Management Entity (MME), a Software Defined Network (SDN) controller, or a base station.

When the controller is located in the SGW or MME, the controller may connect to the cell through the S1 interface. When the controller is located in the SDN controller, the controller may connect to the cell through a southbound interface. When the controller is located in some base stations, for example, macro base stations, the controller may be connected to other cells through an X2 interface.

Taking Universal Mobile Telecommunications System (UMTS) as an example, optionally, as an embodiment, the controller may be located in a Radio Network Controller (RNC) or a Serving GPRS Support Node (SGSN).

Since the controller has information of all nodes in the network, global optimization can be performed, and energy consumption of the whole network is minimized under the condition of meeting service requirements as much as possible. The network use efficiency is fully exerted, and simultaneously more base stations enter an energy-saving mode to realize system energy saving.

When the controller performs global optimization, an iterative manner may be adopted, that is, when a decision is made for one base station, the working state of another base station is assumed to be known, and the working state of the base station is determined with the goal of maximizing energy saving, and then the working state of the next base station is determined in a similar manner until the working states of all base stations are stable, and all base stations are notified of the respective working states to enter. The centralized implementation mode can simultaneously consider the influence of the working states of the base stations, and the decision-making result has better energy-saving effect than that of the distributed implementation mode.

When the controller performs global optimization on the access working state of the base station, the access link may include radio links of a plurality of user equipments (including radio links of user equipments in the cell and possibly radio links of user equipments handed over from other cells). The radio links of the multiple user equipments have heterogeneous characteristics, and the controller may estimate the access resource requirement (e.g., the number of transmission time intervals TTI) of the total cell according to the traffic requirement (e.g., the amount of traffic to be transmitted by each user equipment or the delay characteristics within a period T, where the amount of traffic may be based on base station statistics or predictions or user reports), the channel information of the user equipment, the buffer occupancy information (e.g., buffer capacity), and the backhaul status information of each user equipment. The controller may then determine from the total cell's access resource requirements whether a power saving mode is possible and further determine which power saving mode to enter (e.g., discontinuous transmission DTX mode or OFF mode) and its corresponding power saving mode parameter configuration.

The controller can judge which working state the base station access module is about to enter in the following mode. Presetting a dormancy time threshold 1 and a dormancy time threshold 2, and assuming that the dormancy time threshold 1 is less than the dormancy time threshold 2, if the controller obtains that the dormancy time of the base station access module is greater than the dormancy time threshold 1 but less than the dormancy time threshold 2 through decision, the base station can enter a discontinuous transmission DTX mode. If the sleeping time length is greater than or equal to the sleeping time length threshold 2 and the user equipment served by the base station can be switched to the adjacent cell, the base station access module can enter an OFF mode. If the controller obtains that the time length of the base station access module which can sleep is less than or equal to the sleep time length threshold 1 through the decision, the base station access module can enter a normal mode.

When the controller performs global optimization on the backhaul operating state of the base station, it may be assumed that the association relationship between the user equipment and the base station is already determined and the backhaul route of each base station is known. Assuming that the delay of other links is known in an end-to-end path (a simple method is to assume that the delay is equally divided among the links), the residual delay on the link can be estimated according to the maximum tolerated delay of the service, and t can be estimated according to the residual delay, the buffer amount, the link quality and the related information of other neighboring cells of all the services of the base station₀Within the time, the time t required for meeting all service time delay requirements of the base station₃Thereby obtaining the time t that can enter into the sleep₂Is t₀-t₃。

The controller can determine which operating state the base station backhaul module enters in the following manner. Presetting a dormancy time length threshold 3 and a dormancy time length threshold 4, and assuming that the dormancy time length threshold 3 is smaller than the dormancy time length threshold 4, if t₂Greater than the dormancy duration threshold 3 but less than the dormancy duration threshold 4, the controller may make a decision such that the base station backhaul module may enter a discontinuous transmission, DTX, mode. If t is₂And if the sleep duration is greater than or equal to the sleep duration threshold 4 and the neighboring base station can receive the original backhaul load of the base station, the controller can make a decision to enable the backhaul module of the base station to enter an OFF mode. If t is₂And if the time length is less than or equal to the dormancy time length threshold 3, the base station backhaul module can enter a normal mode.

Generally, the same node should not enter the OFF mode if its access does not. If a backhaul link enters DTX mode, the route of the backhaul link does not need to be updated. If a certain backhaul link enters the OFF mode, the base station using the backhaul link needs to re-find the backhaul route. The backhaul route also needs to be updated if the backhaul link goes from the OFF mode to the on mode.

As an embodiment of the present invention, the controller or the base station may determine the access operation state according to the access information. That is, backhaul information may not be considered in making the decision on access operation status, e.g., backhaul capability may be assumed to be unrestricted.

Embodiments of the present invention are described in more detail below with reference to specific examples. It should be noted that these examples are only for helping those skilled in the art to better understand the embodiments of the present invention, and do not limit the scope of the embodiments of the present invention.

The system for adjusting the wireless network in the embodiment of the invention comprises the UE1, the BS1, the controller, the BS2 and the UE 2. The UE1 accesses the BS1, and the UE2 accesses the BS 2. Here, the example is given only that the system includes two base stations and two user equipments, but the present invention is not limited thereto. At least two base stations and at least two user equipments may be comprised in the system.

301, the UE reports access information to the BS.

The UE may report the access information to the BS, e.g., the UE1 may send the access information of the UE1 to the BS1, and the UE2 may send the access information of the UE2 to the BS 2. The access information may include channel state information and uplink traffic demand information of a user equipment accessing a certain base station.

Taking the LTE system as an example, the Channel State Information (CSI) of the ue may be carried in a CQI (Channel Quality Indicator), a Rank Indication (RI), and a Precoding Matrix Indication (PMI) report. The service requirement information may include service information of a service that the link needs to transmit, for example, a service delay characteristic, a service amount, and the like of the service to be transmitted. Taking the LTE system as an example, for the uplink service, the traffic volume may be carried in a Buffer Status Report (BSR) of the UE, but a finer granularity may also be adopted. For an active UE, its serving base station stores its UE context information, which includes session and bearer information of the UE, where the bearer information includes service quality (QoS) requirement information of a service, and the QoS includes Packet Delay Budget (PDB), Packet loss Rate (PDB), and also includes a Guaranteed Rate requirement for a bearer with a Guaranteed Bit Rate (Guaranteed Bit Rate). The delay characteristic information of the service corresponds to the PDB information. For downlink service, the base station can obtain the service requirement information of the UE served by the base station from the core network or the base station, and does not need to report the service requirement information by the UE.

302, the BS reports the access information and the backhaul information to the controller.

After receiving the access information reported by the user equipment, the base station may combine the stored UE context information and the cached service information to generate processed access information, and report the processed access information and its own backhaul information to the controller.

The processed access information includes CSI information and service requirement information of the UE. Taking the LTE system as an example, the CSI information may refer to a CSI report for inter-evolved Node B Coordinated Multi Point (inter-eNB CoMP), where the CSI report is included in the resource status update message. When reporting the service requirement information to the controller, the base station may provide the service requirement information in the form of a single user requirement (per-user) or in the form of a total requirement (per-cell) of the whole cell. The information format may borrow the Buffer Status Report (BSR) of the UE, but may employ finer granularity.

The backhaul information may include backhaul buffer capacity and backhaul link capacity of the base station, etc. The backhaul buffer capacity may include a backhaul buffer maximum capacity, a backhaul buffer current occupancy, or a backhaul buffer remaining capacity. The backhaul link capacity is used to indicate a data transmission rate that the corresponding backhaul link can carry.

For example, the BS1 may transmit access information of the BS1 and backhaul information of the BS1 to the controller, and the BS2 may also transmit access information of the BS2 and backhaul information of the BS2 to the controller.

303, the controller determines the working state of each base station according to the access information reported by the BS, the backhaul information, and the working state information of the BS stored in the controller.

The controller can make a decision on the working state of each BS according to the access information reported by the BS, the backhaul information, and the working state information of the BS stored in the controller, and determine the working state to be entered by each BS. In other words, the controller may determine the next operation state to be entered by each base station. For example, the controller decides that the access side of the BS1 enters the OFF mode, the backhaul side enters the discontinuous DTX backhaul mode, the access side of the BS2 enters the discontinuous transmission DTX mode, and the backhaul side enters the discontinuous DTX backhaul mode.

Here, the BS operating state information stored by the controller is a BS initial operating state or an operating state of the BS obtained by a previous decision. The working state to be entered by each BS may be a working state to be entered by a BS obtained by re-decision considering the BS starting working state or the working state of each base station obtained by the previous decision and the current access and backhaul information.

304, the controller sends the decision result to the base station.

After obtaining the decision result in step 303, the controller sends the decision result corresponding to the decision result to each base station. The decision result may include an operating state to be entered by the base station and a time to enter the operating state, and the decision result information sent to the base station may be provided by using the message shown in table 4. When the working state to be entered by the base station is DTX, the decision result may include DTX configuration information, such as information shown in table 1 or table 2. When the operating state to be entered by the base station is OFF, the decision result may include a time duration for entering OFF. The time to enter the working state may include a transmission delay of the decision result, a processing delay of the base station for processing the decision result, a delay of the base station for performing the working state transition, and the like.

For example, the controller transmits to the BS1 that the access side of the BS1 is about to enter the OFF mode and the backhaul side is about to enter the discontinuous DTX backhaul mode, and transmits to the BS2 that the access side of the BS2 is about to enter the discontinuous transmission DTX mode and the backhaul side is about to enter the discontinuous DTX backhaul mode.

Optionally, the controller may also configure or update the backhaul routes of the base stations based on the decision result.

305, the base station may perform state configuration for the UE.

The base station may configure the accessed UE according to the working state in the decision result. For example, when the access side of the BS1 is about to enter the OFF access mode, the BS1 may send a handover command to the UE1, causing the UE1 to handover to other base stations.

In the embodiment of the invention, the base station configures the state of the UE so that the UE can selectively enter the starting mode or the energy-saving mode, thereby further realizing the energy saving of the system and adjusting the energy loss of the system while fully playing the service efficiency of the network.

And 306, the BS enters a corresponding working state according to the decision result.

The base station may enter a corresponding working state according to the decision result, where the working state includes an access working state and a backhaul working state. For example, if the access side of BS1 enters the normal access mode in the decision result, then BS1 enters the normal access mode at the time specified by the decision result in this step.

In the embodiment of the invention, the access working state/the return working state of each base station is determined to be in a normal mode, a DTX mode or an OFF mode according to the access information, the return information and the current working state of the user equipment accessed to each base station in at least two base stations, and part of the base stations are enabled to enter an energy-saving mode, so that the energy loss of a system can be adjusted while the network use efficiency is fully exerted.

In addition, a corresponding part of UE can be configured to enter an energy-saving mode by using the base station, and the energy loss of the system can be adjusted while the network use efficiency is fully exerted.

The system for adjusting the wireless network in the embodiment of the invention comprises the UE1, the BS1, the BS2 and the UE 2. The UE1 accesses the BS1, the UE2 accesses the BS2, and a wireless backhaul connection exists between the BS1 and the BS 2. Here, the example is given only that the system includes two base stations and two user equipments, but the present invention is not limited thereto. At least two base stations and at least two user equipments may be comprised in the system.

401, the UE reports the access information to the BS.

The UE may report access information to the serving BS. For example, the UE1 may send access information for the UE1 to the BS1, and the UE2 may send access information for the UE2 to the BS 2. The access information may include channel state information and uplink traffic demand information of a user equipment accessing a certain base station.

402, the access information, backhaul traffic demand information, own backhaul information and own current operating state information are interacted between the adjacent BSs.

After receiving the access information reported by the user equipment, the base station may combine the stored UE context information and the cached service information to generate processed access information and backhaul service requirement information, and report the processed access information, backhaul information of the base station and current working state information of the base station to the controller. The backhaul information may include backhaul buffer capacity, backhaul link capacity, backhaul traffic demand, etc. of a certain base station. The backhaul buffer capacity may include a backhaul buffer maximum capacity, a backhaul buffer current occupancy, or a backhaul buffer remaining capacity. The backhaul link capacity is used to indicate a data transmission rate that the corresponding backhaul link can carry.

For example, the BS1 may transmit the access information, backhaul traffic demand information, backhaul information processed by the BS1 and the current operating state of the BS1 itself to the BS 2. The BS2 may also send the access information, backhaul information processed by the BS2 and the current operating state of the BS2 itself to the BS 1.

The mutual information between the base stations can be transmitted by modifying the message in the existing protocol or introducing a new message to carry the mutual information. For example, in the LTE system, information interaction between base stations can be performed by modifying an existing X2AP message or introducing a new X2AP message. The backhaul buffer capacity and the backhaul link capacity may be provided by introducing a new X2AP message, or adding a new INFORMATION Element (IE) to an existing X2AP message, such as a LOAD INFORMATION message (LOAD INFORMATION) or a resource status UPDATE (resource status UPDATE) message.

The processed access information includes CSI information of the UE. Taking the LTE system as an example, the CSI information may adopt a CSI report for inter-evolved Node B Coordinated Multi Point (inter-eNB CoMP), where the CSI report is included in the resource status update message. Here, the backhaul traffic demand information is demand information of all the traffic that needs to backhaul through the base station, and the traffic includes access traffic of the base station itself and traffic of other base stations that backhaul through the base station, so that source/destination node indication information of the corresponding traffic or routing information of the traffic needs to be provided in addition to traffic volume and traffic QoS. When the base station interacts with the service requirement information, the service requirement information can be provided in the form of a single user requirement (per-user) or in the form of a total requirement (per-cell) of the whole cell. The information format may borrow the Buffer Status Report (BSR) of the UE, but may employ finer granularity.

The operating state information may be provided using the messages shown in table 4.

It should be noted that the information to be interacted with in step 402 may be carried in multiple messages. In addition, the information of step 402 may be sent by the base station actively (for example, when the corresponding value changes), or may be triggered by a request of the other base station.

403, each BS determines the working state to be entered by each self-BS according to the self-information and the information sent by other base stations.

Each base station can make a decision on the working state to be entered according to its own information (including its own access information, backhaul information and working state) and the access information, backhaul information and working state sent by other base stations. In other words, each base station can decide the working state to be entered in the next stage according to the information of the base station and the information of other base stations around the base station. For example, the BS1 can obtain through the decision that the access module of the BS1 enters the OFF access mode and the backhaul module enters the DTX backhaul mode. The BS2 can obtain through the decision that the access module of the BS2 enters the DTX mode and the backhaul module enters the DTX backhaul mode.

404, interacting decision results between adjacent base stations.

After obtaining the decision result in step 303, each base station sends the decision result to the neighboring base station, where the decision result may include the working state to be entered by the base station and the time when the base station enters the working state, and the decision result may be provided by using the message shown in table 4. When the working state to be entered by the base station is DTX, the decision result may include DTX configuration information, such as table 1 or table 2. When the operating state to be entered by the base station is OFF, the decision result may include a time duration to be entered into OFF. The time of entering the working state may include transmission delay of the decision result, processing delay of the base station for processing the decision result, delay of the base station for performing working state transition, and the like.

For example, the BS1 sends to the BS2 that the access side of BS1 is about to enter the OFF access mode and the backhaul side is about to enter the DTX backhaul mode. The BS2 sends to BS1 that the access side of BS2 is about to enter DTX mode and the backhaul side is about to enter DTX backhaul mode.

The base station may perform state configuration for the UE 405.

The base station may configure the UE to be accessed or the UE to be passed through the backhaul according to the working state to be entered in the decision result. For example, when the access side of the BS1 is about to enter the OFF access mode, the BS1 may send a handover command to the UE1, causing the UE1 to handover to other base stations.

And 406, the BS enters a corresponding working state according to the decision result.

In the embodiment of the invention, the access working state/backhaul working state to be entered by each base station is determined to be in a normal mode, a DTX mode or an OFF mode according to the access information, backhaul information and current working state of the user equipment accessing each base station in at least two base stations, and the access or backhaul of part of the base stations enters an energy-saving mode (including the DTX mode or the OFF mode), so that the energy loss of the system can be adjusted while the network use efficiency is fully exerted.

In addition, a corresponding part of UE can be configured to enter a proper energy-saving mode by using the base station, so that the energy loss of the system is adjusted while the network use efficiency is fully exerted.

Fig. 5 is a schematic flow chart of a base station at each TTI in a wireless network system according to an embodiment of the present invention. Similar considerations are applied to access and backhaul in the overall flow, but the TTI length may be different, the specific algorithm for determining whether to enter DTX/OFF may be different, and furthermore, DTX of access needs to be considered to match DRX of the user.

The base station can determine the TTI type of the current base station according to the transmission time interval in the timer and the counter, and the TTI type can be a normal TTI, a DTX sleep TTI, and an OFF sleep TTI. The normal TTI in the embodiment of the present invention refers to all cases where the base station can normally transmit data. For example, the normal TTI includes a TTI in which the operation state of the base station is in a normal mode, a TTI in which the operation state of the base station has been decided as an energy saving mode (DTX mode or OFF mode) but has not yet entered the energy saving mode, and an activated TTI after the energy saving mode (including the DTX mode and the OFF mode) is dormant.

501, the current TTI is determined.

The base station may determine the current TTI and then proceed to step 502.

502, the base station determines the working mode of the corresponding module of the current TTI according to the result of the last decision.

The base station may determine the operating mode of the corresponding module of the current TTI (including the current TTI being the access module and/or the backhaul module) according to the result of the last decision. Step 503 is then entered.

503, determine whether the current TTI is in normal mode.

If the current TTI is in normal mode, step 504 is entered. Otherwise, go to step 505.

The normal mode TTI operation flow is performed 504.

When the current TTI is determined to be in the normal mode in step 503, the normal TTI operation procedure may be executed, and then step 508 is performed.

The operation flow of the specific normal mode TTI will be detailed later in the description of fig. 6.

When the current TTI is not in DTX mode, step 503 is proceeded to step 505.

505, it is determined whether the current TTI is in DTX mode.

If the current TTI is in DTX mode, step 506 is entered. Otherwise, go to step 507.

A DTX mode TTI operation procedure is performed 506.

When the current TTI is determined to be in the DTX mode in step 505, the DTX mode TTI operation procedure may be executed, and then step 508 is performed.

The specific normal mode TTI operation flow will be detailed later in the description of fig. 7.

When the current TTI is not in DTX mode, step 505 is entered into step 507.

At 507, an OFF mode TTI operation flow is executed.

When the current TTI is not in the DTX mode in step 505, the OFF mode TTI operation procedure is executed, and then step 508 is performed.

The operation flow of the specific OFF mode TTI will be detailed later in the description of fig. 8.

508, next TTI.

The current TTI flow ends, the next TTI is entered, the next TTI is regarded as the current TTI in step 501, and all the above-described flows of fig. 5 are repeated.

601, start.

From here, the flow starts when the respective module (including the access module and/or the backhaul module) is in normal mode for the current TTI, and then proceeds to step 602.

And 602, scheduling the traffic transmission.

The basic principles for scheduling traffic for transmission include scheduling as much traffic as possible for transmission, some traffic may be buffered in advance (Pre-buffering), and scheduling traffic with urgent time requirements in priority. In addition, for the access module, scheduling may also be performed in combination with the ue status, for example, when the device is in the DRX state, traffic of the ue during DRX sleep is not scheduled.

The base station can more effectively utilize energy when working in a high-capacity area, so that the base station can schedule as much service as possible for transmission in principle when scheduling the service for transmission.

After the scheduled service completes transmission, the flow proceeds to step 603.

603, determining whether the decision is to enter the DTX mode.

If the base station has decided that the corresponding module will enter the DTX mode but has not entered, i.e. when the normal mode is transitioning to the DTX mode, then step 609 is entered and the process ends.

If the base station has decided that the corresponding module will not enter the DTX mode, the process proceeds to step 604 to determine whether the decision is to enter the OFF mode.

604, determine whether the decision is in the OFF mode.

If it is decided that the corresponding block will enter the OFF mode but has not yet entered, i.e., is in the transition from the DTX mode to the OFF mode, the process proceeds to step 609, and the process ends.

If the base station has decided that the corresponding module will not enter the OFF mode, the flow proceeds to step 606, and the total access resource requirement is continuously calculated according to the access information and the backhaul information.

And 606, calculating the total resource requirement according to the access information and the backhaul information.

For the access module, the base station may estimate the total cell resource requirement according to the access information (e.g., channel state information, traffic requirement information, buffer capacity of the UE accessing the base station) of the access module and the backhaul state information, for example, calculate the number of TTIs that the access module needs to transmit data.

The backhaul status information may be used to determine backhaul latency. Because the amount of the backhaul delay affects the delay that the access module can tolerate, and the amount of the backhaul delay depends on the state of the access module. One example is that the base station can record the time delays corresponding to different backhaul states and configurations by measuring (e.g., measuring round trip time by sending null packets, etc.).

For the backhaul module, the base station may estimate a total backhaul resource requirement, that is, calculate the number of TTIs for backhaul data transmission, according to relevant information of the backhaul module (e.g., traffic requirement information for implementing backhaul by the base station, backhaul buffer capacity, and backhaul link capacity) and a current operating state of the base station.

After the total resource requirement is calculated, the flow proceeds to step 607.

607, it is determined whether to enter DTX mode.

The base station may determine whether to enter the DTX mode according to the number of TTIs of the corresponding module requiring data transmission calculated in step 606 and a preset threshold of the corresponding module.

For example, a sleep duration threshold 1 and a sleep duration threshold 2 are preset, and it is assumed that the sleep duration threshold 1 is less than the sleep duration threshold 2. If the calculated TTI number is greater than or equal to the dormancy duration threshold 1 in step 606, the base station may enter a discontinuous transmission DTX mode, and the process proceeds to step 608. If the calculated TTI number of the base station in step 606 is less than the threshold 1 of the dormancy duration, the mode of the base station is still the normal mode when the DTX mode cannot be entered, and the base station does not need to change to enter other modes, and the process proceeds to step 609, and the process ends.

And 608, determining the time when the corresponding module enters the DTX mode, configuring DTX mode parameters, and informing the neighboring base station that N1 is initialized to 0.

The base station may need to determine the configuration of the DTX mode and the point of time to enter the mode and the parameters of the DTX mode, taking into account the operating state information of other base stations. For the parameters of the DTX mode, suitable values may be set, for example, the DTX modes of cells with relatively serious mutual interference are staggered in the time domain, so that interference between cells can be reasonably coordinated, and energy loss can be further adjusted.

In addition, when determining the configuration of the DTX mode and the time point of entering the DTX mode, the influence of the backhaul delay (for example, the transmission delay of the signaling message backhaul), the processing delay, and the like may be taken into consideration.

Before the base station access module or the backhaul module is switched from the normal mode to the DTX mode, the base station may send the changed parameters to other neighboring base stations, so that the changed parameters of the base station are considered when the other base stations make a decision on their own operating states. For the access module, the base station may also reconfigure the UE accessed by the base station, and if the reconfiguration causes the DRX configuration parameters of the UE to change, the UE should be notified of the changed configuration.

N1 represents the number of cycles of continuous DTX, and when N1 reaches a preset value N1 (an integer greater than or equal to 1), the base station may check whether the OFF mode can be entered.

Initialization N1 is now 0. The process then proceeds to step 609, where the process ends.

609, end.

The flow ends.

In one embodiment of the invention, the access is similar to the flow of the backhaul. The specific operations of access and backhaul may differ for steps 606-608, which are set forth in detail in the flow chart description section above. In addition, in implementation, the process after 606 may not need to be performed every TTI, and may be performed once every other period of time, which may reduce the complexity of the entire system.

701, begin.

From here, the flow starts when the corresponding module (including the access module and/or the backhaul module) is in DTX mode for the current TTI, and then proceeds to step 602.

And 702, judging whether the current TTI is the DTX dormancy TTI.

If the current TTI is determined to be DTX activated TTI, the process proceeds to step 703 to schedule service transmission.

If the current TTI is determined to be the DTX dormant TTI, the scheduling of the service for transmission is not required, and the process may directly enter step 704.

703, scheduling traffic transmission.

After the scheduled traffic completes transmission, the flow proceeds to step 704.

And 704, judging whether the DTX period is ended in the current TTI.

In the embodiment of the present invention, it is assumed that the decision of changing the DTX mode to the normal mode, the next DTX mode, and the OFF mode is performed at the end of one DTX mode period.

If the DTX period is not determined to end at the current TTI, the process proceeds to step 715, where the process ends. Otherwise, flow proceeds to step 705.

705，N1＝N1+1。

The value of the number of consecutive DTX mode periods N1 is incremented by 1 and the flow proceeds to step 706.

New resource requirements are calculated 706 based on the access and backhaul information.

After the total resource demand is calculated, the flow proceeds to step 707.

707, it is determined whether the DTX mode can be entered.

The base station may determine whether to enter the DTX mode according to the number of TTIs of the corresponding module requiring data transmission calculated in step 706 and a preset threshold of the corresponding module.

For example, a sleep duration threshold 1 and a sleep duration threshold 2 are preset, and it is assumed that the sleep duration threshold 1 is less than the sleep duration threshold 2. If the calculated TTI number is greater than or equal to the dormancy duration threshold 1 in step 706, the base station may enter a discontinuous transmission DTX mode, and the process proceeds to step 709. If the calculated TTI number is less than the dormancy duration threshold 1 in step 706, the base station cannot enter the DTX mode, and the base station enters the normal mode, and the process proceeds to step 708.

At 708, the time to enter the normal mode is determined, and the neighbor base station is notified, and N1 is initialized to 0.

When determining the time point to enter the normal mode, the operating state information of other base stations needs to be considered to avoid causing strong interference to other base stations or other base stations, for example, to avoid all base stations entering the normal mode at the same time, which causes sudden change of interference. Meanwhile, the influence of the backhaul delay (signaling message transmission delay), processing delay, and the like on the time point of entering the normal mode should be considered.

Since the normal mode is to be entered from the DTX mode, other neighboring base stations need to be informed, and at the same time, the DRX configuration for the user may also change, and the user needs to be informed. At this point, the number of consecutive DTX periods N1 needs to be reset to 0.

Thereafter, flow proceeds to block 715 where it ends.

709, judge if N1 > ═ N1 holds.

If it is determined that N1 ═ N1(N1 is a preset positive integer) does not hold, indicating that the OFF mode is not qualified, the flow proceeds to step 710, where it is determined whether to update the DTX mode configuration.

If N1 > - (N1) is true, the flow proceeds to step 713 to determine whether the OFF mode can be entered.

710, determining whether the DTX mode configuration needs to be updated according to the change of the resource requirement.

If the resource requirement change compared to the previous DTX mode decision is less than the preset value, it is determined that the current DTX mode configuration can be continuously used, and the flow proceeds to step 712. Otherwise, a new DTX mode configuration may be employed and the flow proceeds to step 711. There may be other ways to determine whether the DTX mode configuration needs to be updated, and only one of them is given in the embodiments of the present invention.

711, determine the new DTX mode configuration and time to enter the next DTX mode, and inform the neighboring base station that N1 is 0.

The configuration of the next DTX mode and the determination of the time point for entering the mode need to consider the operating state information of other base stations, and by setting an appropriate value, for example, the DTX modes of cells with relatively serious mutual interference are staggered in the time domain, an effect of reasonably coordinating inter-cell interference can be achieved, and energy consumption is further adjusted. Meanwhile, the influence of the backhaul delay (signaling message transmission delay), processing delay, etc. on the configuration of the next DTX mode and the point of time to enter the mode should be considered.

The base station is accessed or returned in a DTX mode, when the parameters of the DTX mode are changed, the base station sends the changed parameters to other adjacent base stations, so that the other base stations consider the changed parameters of the base station when deciding the working state of the other base stations. The base station can also reconfigure the UE accessed by the base station, and if the reconfiguration causes the DRX configuration parameter of the UE to be changed, the UE is informed of the changed configuration. At this point, the number of consecutive DTX periods N1 needs to be reset to 0.

Thereafter, flow proceeds to block 715 where it ends.

And 712, keeping the current DTX mode configuration.

If step 710 determines that the resource requirement variation is less than the predetermined value, the current DTX mode configuration may be maintained without informing other base stations. Flow proceeds to block 715 where it ends.

713, it is judged whether or not the OFF mode can be entered.

For example, a sleep duration threshold 1 and a sleep duration threshold 2 are preset, and it is assumed that the sleep duration threshold 1 is less than the sleep duration threshold 2. If the calculated TTI number is greater than or equal to the threshold of dormancy duration 2 in step 706, the BS may enter OFF mode and the process proceeds to step 714. There are exceptions, as previously mentioned, and in general, a backhaul should not go OFF if its access is not going OFF for a base station. If the calculated TTI number is less than the threshold 2 of the sleeping duration in step 706, the base station may not enter the OFF mode, but may continue to enter the DTX mode, and the process proceeds to step 710.

714, determine the time to enter the OFF mode, the duration of the sleep, and inform the neighboring base stations, while resetting N1.

The determination of the time point of entering the OFF mode should take into account the backhaul delay (signaling message transmission delay), processing delay, etc., in addition to the operating state information of other base stations. The continuous sleep period herein should include the time required for the transition from the OFF mode to the normal mode. After the OFF mode sleep is finished, the normal mode is directly entered.

For the access module, the served UE needs to be switched to a suitable neighbor cell. For the backhaul, the base station using the backhaul link needs to look for the backhaul route again.

Flow then proceeds to block 715 where flow ends.

715, and then the process is finished.

801, begin.

From here, the flow starts when the corresponding module (including the access module and/or the backhaul module) is in the OFF mode for the current TTI, and then proceeds to step 602.

802, determine whether a wake-up is received.

And judging whether the base station receives awakening after OFF dormancy. When the base station does not receive the wake-up, the flow proceeds to step 804. When the base station receives the wake-up, the flow proceeds to step 803.

The wake-up command may come from an Operation and Maintenance (OAM) unit or from a request from a neighboring base station.

803, informing the neighboring base stations that the corresponding module will enter the normal mode.

The normal mode includes a normal access mode and a normal backhaul mode, corresponding to wake-up in different modes. The time for entering the normal mode needs to consider the time for the relevant hardware to convert from OFF to the normal mode, and also needs to consider the time delay which can be consumed by informing the adjacent station, so as to ensure that the actual state of the base station is unified with the state of the base station obtained by other base stations.

The process then proceeds to step 806 where the process ends.

And 804, judging whether the dormancy is finished.

It is determined whether the expected sleep duration has been reached and if so, the corresponding module is ready to enter normal mode and flow proceeds to 805. Otherwise, the OFF mode is continued, step 806 is entered, and the process ends.

805, ready to enter normal mode.

The process then proceeds to step 806 where the process ends.

806, and end.

The method for adjusting the energy loss of the wireless network system according to the embodiment of the present invention is described in detail above with reference to fig. 2 to 8, and the apparatus for adjusting the energy loss of the wireless network system according to the embodiment of the present invention will be described below with reference to fig. 9 to 10.

Fig. 9 is a block diagram of an apparatus for adjusting energy loss of a wireless network system according to an embodiment of the present invention. The apparatus of fig. 9 may perform the respective methods of fig. 2-8. The apparatus 10 of fig. 9 includes an acquisition unit 11 and a first determination unit 12.

The obtaining unit 11 is configured to obtain first access information, first backhaul information, and first operating status information of a first base station, and obtain second access information, second backhaul information, and second operating status information of a second base station. The first access information comprises at least one of channel state information, traffic and quality of service (QoS) corresponding to user equipment accessing the first base station. The first backhaul information is link information of the first base station. The first operating state information is used to indicate information of a backhaul link between the first base station and the core network or the third base station. The second access information includes at least one of channel state information, traffic and QoS corresponding to the user equipment accessing the second base station. The second backhaul information is information of a backhaul link of the second base station. The second operating state information is used for indicating the current access operating state and the backhaul operating state of the second base station.

The first determining unit 12 is configured to determine an access working state and a backhaul working state that the first base station is to enter according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information, and the second working state information acquired by the acquiring unit.

Optionally, as an embodiment, the first backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the first base station. The second backhaul information includes at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand of the second base station. Wherein the traffic demand information includes at least one of backhaul traffic volume, backhaul traffic QoS, and backhaul routing information.

Optionally, as an embodiment, the access operation state is a normal access mode, a discontinuous transmission DTX access mode, or an OFF-OFF access mode, and the backhaul operation state is a normal backhaul mode, a DTX backhaul mode, or an OFF backhaul mode.

Optionally, as an embodiment, the apparatus is a first base station, and the obtaining unit is specifically configured to receive the second access information, the second backhaul information, and the second operating state information sent by the second base station.

Optionally, as an embodiment, the apparatus further includes a sending unit, where the sending unit is configured to send third operating state information to the second base station, where the third operating state information is used to indicate an access operating state and/or a backhaul operating state to be entered by the first base station.

Optionally, as an embodiment, the apparatus further includes a configuration unit, where the configuration unit is configured to configure, according to an access operating state and a backhaul operating state to be entered by the first base station, the user equipment accessing the first base station, and update a route for performing backhaul through the first base station.

Optionally, as an embodiment, the configuration unit is specifically configured to: when the access working state to be entered by the first base station is a DTX access mode, configuring the user equipment accessed to the first base station into a Discontinuous Reception (DRX) mode or updating the configuration parameters of the DRX mode of the user equipment accessed to the first base station through air interface signaling; when the access working state to be entered by the first base station is an OFF access mode, switching the user equipment accessed to the first base station to be accessed to other base stations through an air interface signaling; and when the backhaul working state to be entered by the first base station is an OFF backhaul mode, switching the service for realizing the backhaul through the first base station to realize the backhaul through other base stations.

Optionally, as an embodiment, the first determining unit is specifically configured to calculate, according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information, a transmission time interval TTI number required for transmission of a service of the first base station, compare the TTI number with a preset sleep duration threshold, and determine an access operating state and a backhaul operating state that the first base station is to enter.

Optionally, as an embodiment, the apparatus is a controller, and the apparatus further includes a second determining unit, where the second determining unit is configured to determine an access operating state and a backhaul operating state of the second base station to be entered according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information.

Optionally, as an embodiment, the obtaining unit is specifically configured to receive first access information, first backhaul information, and first operating state information sent by a first base station, and receive second access information, second backhaul information, and second operating state information sent by a second base station.

Optionally, as an embodiment, the controller is located in a serving gateway SGW, a mobility management entity MME, a software defined network SDN controller, or a base station.

The apparatus for adjusting energy loss of a wireless network system according to an embodiment of the present invention may correspond to the method for adjusting energy loss of a wireless network system according to an embodiment of the present invention, and each unit/module and the other operations and/or functions in the apparatus are respectively for implementing corresponding processes of the methods shown in fig. 2 to fig. 10, and are not described herein again for brevity.

Fig. 10 is a block diagram of an apparatus for adjusting energy loss of a wireless network system according to another embodiment of the present invention. The apparatus 20 of fig. 10 comprises a transmitter 21, a receiver 22, a processor 23 and a memory 24. Processor 23 controls the operation of apparatus 20 and may be used to process signals. Memory 24 may include both read-only memory and random access memory and provides instructions and data to processor 23. The various components of the device 20 are coupled together by a bus system 25, wherein the bus system 25 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 25 in the figures.

The method disclosed in the above embodiments of the present invention may be applied to the processor 23, or implemented by the processor 23. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 23. The processor 23 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 24, and the processor 23 reads the information in the memory 24 and completes the steps of the method in combination with the hardware thereof.

Specifically, the processor 23 may obtain first access information, first backhaul information, and first operating state information of the first base station, obtain second access information, second backhaul information, and second operating state information of the second base station, and determine a third access operating state and a third backhaul operating state to be entered by the first base station according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information. The first access information includes at least one of channel state information, traffic and quality of service (QoS) corresponding to a user equipment accessing the first base station. The first backhaul information is link information of the first base station. The first operating state information is used to indicate information of a backhaul link between the first base station and the core network or the third base station. The second access information includes at least one of channel state information, traffic and QoS corresponding to the user equipment accessing the second base station. The second backhaul information is information of a backhaul link of the second base station. The second operating state information is used for indicating the current access operating state and the backhaul operating state of the second base station.

Optionally, as an embodiment, the apparatus 20 is a first base station, and the receiver 22 may be configured to receive the second access information, the second backhaul information, and the second operating state information sent by a second base station.

Optionally, as an embodiment, the transmitter 21 may be configured to transmit third operating state information to the second base station, where the third operating state information is used to indicate an access operating state and/or a backhaul operating state to be entered by the first base station.

Optionally, as an embodiment, the processor 23 may be configured to configure a user equipment accessing the first base station according to an access operating status and a backhaul operating status to be entered by the first base station, and update a route backhaul by the first station.

Optionally, as an embodiment, the processor 23 may be configured to configure, when the access working state to be entered by the first base station is a DTX access mode, the ue accessing the first base station as a discontinuous reception DRX mode through an air interface signaling or update a configuration parameter of the DRX mode of the ue accessing the first base station; when the access working state to be entered by the first base station is an OFF access mode, switching the user equipment accessed to the first base station to be accessed to other base stations through an air interface signaling; and when the backhaul working state to be entered by the first base station is an OFF backhaul mode, switching the service for realizing the backhaul through the first base station to realize the backhaul through other base stations.

Optionally, as an embodiment, the processor 23 may be configured to calculate, according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information, a transmission time interval TTI number required for the first base station to transmit the service, compare the TTI number with a preset sleep duration threshold, and determine an access operating state and a backhaul operating state that the first base station is to enter.

Optionally, as an embodiment, the processor 23 may be configured to determine an access operating state and a backhaul operating state to be entered by the second base station according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information.

Optionally, as an embodiment, the receiver 22 may be configured to receive first access information, first backhaul information, and first operating status information sent by a first base station, and receive second access information, second backhaul information, and second operating status information sent by a second base station.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

It should be understood that in the present embodiment, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

In addition, the terms "system" and "network" are often used interchangeably herein. It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

It will be understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by a program to instruct relevant hardware, where the program may be stored in a computer-readable storage medium, and when executed, the program may include the contents of the foregoing embodiments of the MIP technology-based communication method according to the present invention. The storage medium referred to herein is, for example: ROM/RAM, magnetic disk, optical disk, etc.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method for adjusting energy consumption of a wireless network system, comprising:

the method includes the steps of obtaining first access information, first backhaul information and first working state information of a first base station, and obtaining second access information, second backhaul information and second working state information of a second base station, where the first backhaul information is information of a backhaul link of the first base station, the first working state information is used for indicating a current access working state and a backhaul working state of the first base station, the second backhaul information is information of a backhaul link of the second base station, the second working state information is used for indicating a current access working state and a backhaul working state of the second base station, the first access information includes at least one of channel state information, traffic and quality of service (QoS) corresponding to a user equipment accessing the first base station, and the second access information includes channel state information, traffic and QoS corresponding to a user equipment accessing the second base station, At least one of traffic and QoS;

and determining an access working state and a backhaul working state to be entered by the first base station according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information.

2. The method of claim 1, wherein the first backhaul information comprises at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the first base station, and the second backhaul information comprises at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the second base station, wherein the traffic demand information comprises at least one of backhaul traffic volume, backhaul traffic QoS, and backhaul routing information.

3. The method of claim 1 or 2, wherein the access operation state is a normal access mode, a Discontinuous Transmission (DTX) access mode or an OFF (OFF) access mode, and the backhaul operation state is a normal backhaul mode, a DTX backhaul mode or an OFF backhaul mode.

4. The method of claim 1 or 2, wherein the method is performed by the first base station, and wherein the obtaining second access information, second backhaul information, and second operating state information of the second base station comprises:

and receiving the second access information, the second backhaul information and the second working state information sent by the second base station.

5. The method of claim 4, wherein the method further comprises:

and sending third working state information to the second base station, wherein the third working state information is used for indicating an access working state and/or a backhaul working state to be entered by the first base station.

6. The method of claim 5, wherein the method further comprises:

and configuring user equipment accessed to the first base station according to the access working state and the backhaul working state to be entered by the first base station, and updating a route for backhaul through the first base station.

7. The method of claim 6, wherein the configuring user equipment accessing the first base station according to an access operating state and a backhaul operating state to be entered by the first base station and updating a route for backhaul through the first base station comprises:

when the access working state to be entered by the first base station is a DTX access mode, configuring the user equipment accessed to the first base station into a Discontinuous Reception (DRX) mode or updating the configuration parameters of the DRX mode of the user equipment accessed to the first base station through air interface signaling;

when the access working state to be entered by the first base station is an OFF access mode, switching the user equipment accessed to the first base station to be accessed to other base stations through air interface signaling;

and when the backhaul working state to be entered by the first base station is an OFF backhaul mode, switching the service of realizing backhaul through the first base station to realize backhaul through other base stations.

8. The method of any one of claims 5-7, wherein the determining the access operating state and backhaul operating state to enter for the first base station based on the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information comprises:

calculating the transmission time interval TTI number required by the first base station for transmitting the service according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information;

and comparing the TTI number with a preset dormant time threshold value, and determining an access working state and a backhaul working state to be entered by the first base station.

9. The method of claim 1 or 2, wherein the method is performed by a controller, the method further comprising:

and determining an access working state and a backhaul working state to be entered by the second base station according to the first access information, the first backhaul information, the first working state information, the second access information, the second backhaul information and the second working state information.

10. The method of claim 9, wherein the obtaining the first access information, the first backhaul information, and the first operating state information of the first base station, and the obtaining the second access information, the second backhaul information, and the second operating state information of the second base station comprises:

receiving the first access information, the first backhaul information and the first working state information sent by the first base station;

11. The method of claim 10, wherein the controller is located at a Serving Gateway (SGW), a Mobility Management Entity (MME), a Software Defined Network (SDN) controller, or a base station.

12. An apparatus for adjusting energy consumption of a wireless network system, comprising:

an obtaining unit, configured to obtain first access information, first backhaul information, and first working status information of a first base station, and obtain second access information, second backhaul information, and second working status information of a second base station, where the first backhaul information is information of a backhaul link of the first base station, the first working status information is used to indicate a current access working status and a backhaul working status of the first base station, the second backhaul information is information of a backhaul link of the second base station, the second working status information is used to indicate a current access working status and a backhaul working status of the second base station, the first access information includes at least one of channel status information, traffic, and quality of service (QoS) corresponding to a user equipment accessing the first base station, and the second access information includes channel status information, traffic, and quality of service (QoS) corresponding to a user equipment accessing the second base station, At least one of traffic and QoS;

a first determining unit, configured to determine an access operating state and a backhaul operating state that the first base station is to enter according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information acquired by the acquiring unit.

13. The apparatus of claim 12, wherein the first backhaul information comprises at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand information of the first base station, and the second backhaul information comprises at least one of backhaul buffer capacity, backhaul link capacity, and traffic demand of the second base station, wherein the traffic demand information comprises at least one of backhaul traffic volume, backhaul traffic QoS, and backhaul routing information.

14. The apparatus of claim 12 or 13, wherein the access operating state is a normal access mode, a Discontinuous Transmission (DTX) access mode, or an OFF access mode, and the backhaul operating state is a normal backhaul mode, a DTX backhaul mode, or an OFF backhaul mode.

15. The apparatus according to claim 12 or 13, wherein the apparatus is the first base station, and the obtaining unit is specifically configured to receive the second access information, the second backhaul information, and the second operating status information sent by the second base station.

16. The apparatus of claim 15, wherein the apparatus further comprises:

a sending unit, configured to send third working state information to the second base station, where the third working state information is used to indicate an access working state and/or a backhaul working state that the first base station is to enter.

17. The apparatus of claim 16, wherein the apparatus further comprises:

a configuration unit, configured to configure a ue accessing the first base station according to an access working state and a backhaul working state that the first base station is to enter, and update a route that performs backhaul through the first base station.

18. The apparatus as claimed in claim 17, wherein said configuration unit is specifically configured to: when the access working state to be entered by the first base station is a DTX access mode, configuring the user equipment accessed to the first base station into a Discontinuous Reception (DRX) mode or updating the configuration parameters of the DRX mode of the user equipment accessed to the first base station through air interface signaling; when the access working state to be entered by the first base station is an OFF access mode, switching the user equipment accessed to the first base station to be accessed to other base stations through air interface signaling; and when the backhaul working state to be entered by the first base station is an OFF backhaul mode, switching the service of realizing backhaul through the first base station to realize backhaul through other base stations.

19. The apparatus of any one of claims 16 to 18, wherein the first determining unit is specifically configured to calculate, according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information, a transmission time interval TTI number required for the first base station to transmit the service, compare the TTI number with a preset sleep duration threshold, and determine an access operating state and a backhaul operating state to be entered by the first base station.

20. The apparatus of claim 12 or 13, wherein the apparatus is a controller, the apparatus further comprising:

a second determining unit, configured to determine an access operating state and a backhaul operating state that the second base station is to enter according to the first access information, the first backhaul information, the first operating state information, the second access information, the second backhaul information, and the second operating state information.

21. The apparatus of claim 20, wherein the obtaining unit is specifically configured to receive the first access information, the first backhaul information, and the first operating status information sent by the first base station, and receive the second access information, the second backhaul information, and the second operating status information sent by the second base station.

22. The apparatus of claim 21, wherein the controller is located at a Serving Gateway (SGW), a Mobility Management Entity (MME), a Software Defined Network (SDN) controller, or a base station.