WO2013020379A1 - 节电方法及装置 - Google Patents

节电方法及装置 Download PDF

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Publication number
WO2013020379A1
WO2013020379A1 PCT/CN2012/071921 CN2012071921W WO2013020379A1 WO 2013020379 A1 WO2013020379 A1 WO 2013020379A1 CN 2012071921 W CN2012071921 W CN 2012071921W WO 2013020379 A1 WO2013020379 A1 WO 2013020379A1
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WO
WIPO (PCT)
Prior art keywords
sleep
indication
sta
window
network side
Prior art date
Application number
PCT/CN2012/071921
Other languages
English (en)
French (fr)
Inventor
鲍东山
姚惠娟
周玉宝
任旻
阎德升
Original Assignee
北京新岸线无线技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京新岸线无线技术有限公司 filed Critical 北京新岸线无线技术有限公司
Priority to KR1020147006226A priority Critical patent/KR20140068054A/ko
Priority to US14/237,609 priority patent/US20140313957A1/en
Priority to JP2014524253A priority patent/JP2014524691A/ja
Priority to EP12821942.5A priority patent/EP2744275A4/en
Priority to CN201280012514.8A priority patent/CN103583070A/zh
Publication of WO2013020379A1 publication Critical patent/WO2013020379A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the invention belongs to the technical field of communications, and in particular relates to a power saving method and device. Background technique
  • the STA (STA) in the wireless system can stay in the network for a long time after accessing the central access point (CAP) through the access procedure. Even if there is no service transmission, the STA needs to remain active and consume a lot of power. , wasted air interface resources. Summary of the invention
  • a power saving method comprising:
  • the STA When the STA receives the service indication sent by the network side or the STA has data to send to the central access point CAP on the network side, all the closed hardware units are turned on, and the STA ends the sleep mode.
  • the method further includes: sending a sleep request to the network side.
  • the sleep request carries the reported sleep parameter.
  • the dormant indication carries an authorized sleep parameter determined according to the reported sleep parameter.
  • the dormancy indication is determined by the network side according to one or more of the STA's current service conditions, system capacity, and system resources, and carries the authorized sleep parameters.
  • the sleep parameter is: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of a subsequent sleep window;
  • the listening window is spaced from the sleep window.
  • the sleep start time indicates a start time of the initial sleep window, and a frame number is used. Said.
  • the sleeping mode includes: turning off the one or more hardware units in each of the sleep windows, enabling a listening unit in each of the listening windows, and causing the STA to listen to the service indication. .
  • the service indication is sent by the network side in a recent listening window after the data sent by the CAP cache to the STA reaches a predetermined threshold.
  • the method further includes: after receiving the sleep indication correctly, sending an acknowledgement to the network side.
  • a power-saving terminal side device comprising:
  • a sleep indication receiving unit configured to receive a sleep indication sent by the network side
  • a sleep execution unit configured to: when the sleep indication receiving unit receives the sleep indication, turn off one or more hardware units in the STA, and cause the STA to enter a sleep mode;
  • the activation execution unit is configured to: when the STA receives the service indication sent by the network side, or when the STA sends data to the CAP on the network side, turn on all the hardware units that are closed in the STA, and enable the STA to end the sleep mode.
  • the apparatus further includes: a sleep request unit, configured to send a sleep request to the network side.
  • the dormancy request unit includes:
  • a sleep parameter determining subunit configured to determine a sleep parameter to be reported
  • the sleep request sending subunit is configured to send, to the network side, a dormancy request carrying the reported sleep parameter.
  • the dormancy indication receiving unit includes:
  • a sleep indication receiving subunit configured to receive a sleep indication sent by the network side
  • the sleep indication parsing subunit is configured to parse the authorized sleep parameter carried in the sleep indication.
  • the dormancy indication receiving unit includes:
  • a sleep indication receiving subunit configured to receive a sleep indication sent by the network side
  • the sleep indication parsing subunit is configured to parse the authorized sleep parameter carried in the sleep indication.
  • the sleep parameter is: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of a subsequent sleep window;
  • the listening window is spaced from the sleep window.
  • the sleep start time indicates a start time of the start sleep window, and is represented by a frame number.
  • the dormant execution unit includes:
  • a sleep execution subunit configured to turn off one or more hardware units in the STA in each of the sleep windows
  • a listening subunit configured to enable a listening unit in the STA in each of the listening windows, and enable the STA to listen to the service indication.
  • the apparatus further includes: an acknowledgment unit, configured to send an acknowledgment to the network side after the sleep indication receiving unit correctly receives the sleep indication.
  • a power-saving network side device comprising:
  • a sleep indication unit configured to send a sleep indication to the terminal side
  • the activation indication unit is configured to send a service indication to the terminal side.
  • the apparatus further comprises:
  • the sleep request receiving unit is configured to receive a sleep request sent by the terminal side.
  • the dormancy request receiving unit includes:
  • a sleep request receiving subunit configured to receive a sleep request sent by the terminal side
  • the sleep parameter parsing sub-unit is configured to parse the reported sleep parameter carried in the sleep request.
  • the dormancy indication unit includes:
  • a sleep parameter determining subunit configured to determine an authorized sleep parameter according to the reported sleep parameter
  • the sleep indication sending subunit is configured to send a sleep indication carrying the authorized sleep parameter to the terminal side.
  • the dormancy indication unit includes:
  • a parsing subunit configured to parse one or more items of a STA's current service status, system capacity, and system resources;
  • the sleep indication sending subunit is configured to send, to the terminal side, a sleep indication carrying the authorized sleep parameter according to the parsing result obtained by the parsing subunit.
  • the sleep parameter is: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of the sleep window;
  • the listening window is spaced from the sleep window.
  • the sleep start time indicates a start time of the start sleep window, and is represented by a frame number.
  • the activation indication unit includes:
  • a buffer status determining subunit configured to determine whether the data sent by the CAP buffer to the STA reaches a predetermined threshold
  • a service indication sending subunit configured to send the service indication to the terminal side in the latest listening window when the buffer status determining subunit determines that the data sent by the CAP buffer to the STA reaches a predetermined threshold.
  • the apparatus further includes: an acknowledgment receiving unit, configured to receive an acknowledgment sent after the terminal side correctly receives the sleep indication.
  • a method for power saving comprising:
  • the sleep request is sent, so that the receiving end receiving the sleep request sends a sleep indication indicating that the sleep mode is entered.
  • the sleep request carries the reported sleep parameter.
  • the sleep request is encapsulated in a sleep request frame.
  • a method for power saving comprising:
  • the sleep indication is sent, and the receiving end receiving the sleep indication is turned off by one or more hardware units to enter a sleep mode.
  • the dormant indication carries an authorized sleep parameter.
  • the sleep indication is a sleep response frame.
  • the sleep parameters are: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of the subsequent sleep window.
  • a method for power saving comprising:
  • the service indication is encapsulated in a downlink service indication frame.
  • one or more hardware units of the STA may be turned off according to the dormancy indication sent by the network side, when the STA receives the service indication on the network side or the STA sends data to the CAP on the network side.
  • all hardware units that have been turned off can be turned on, and the STA ends the sleep mode, thereby keeping the STA in a minimum power state in a certain period, thereby saving power and air interface resources.
  • FIG. 1 is a flow chart of a power saving method of the present invention
  • FIG. 2 is a flow chart of an electrical method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a frame body of a sleep request frame according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a frame body of a sleep response frame according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a frame body of a downlink service indication frame according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a power saving method according to Embodiment 2 of the present invention.
  • FIG. 7 is a flowchart of a power saving method according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a fourth power saving method according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of another power saving method according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural view of a terminal device for power saving according to the present invention.
  • FIG. 11 is a schematic structural diagram of a terminal side device with five power savings according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a network side device for saving power according to the present invention.
  • FIG. 13 is a schematic structural diagram of a network side device with six power savings according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a network side device with seven power savings according to an embodiment of the present invention. detailed description
  • FIG. 1 is a flowchart of a power saving method according to the present invention, where the process includes:
  • Step 11 Receive the sleep indication sent by the network side, turn off one or more hardware units inside the STA, and put the STA into the sleep mode.
  • One or more hardware units herein including but not limited to hardware components, circuits, integrated modules, and the like.
  • the STA After the STA enters the sleep mode, it cannot send and receive data, that is, it is in the minimum power state for a certain period.
  • Step 12 When the STA receives the service indication sent by the network side or the STA has data to send to the CAP on the network side, all the hardware units that have been turned off are turned on, and the STA ends the sleep mode. After the STA ends the sleep mode, it will enter the active mode, which can communicate normally and is in the full power state.
  • one or more hardware units of the STA may be shut down according to the dormancy indication sent by the network side, and when the STA receives the service indication on the network side or the STA sends data to the CAP on the network side, All hardware units that have been turned off are turned on, and the STA ends the sleep mode, thereby keeping the STA in a minimum power state in a certain period, thereby saving power and air interface resources.
  • one or more hardware units are turned off, and the STA will be in a state in which communication cannot be normally performed, which is a STA-level power saving, and the card is executed and the power saving effect is good.
  • the CAP After the STA enters the sleep mode, the CAP only needs to maintain the status information of the STA, for example, the STA is registered and enters a sleep state, thereby reducing the use of the air interface resource serving the STA.
  • the main body of the power saving method performed by the terminal side is a part of the STAs on the terminal side
  • the main body of the network side performing the power saving method is a network.
  • a part of the CAP on the side so the descriptions in the following alternative embodiments are mainly described by STA and CAP as the main body, but these alternative embodiments do not limit the main body of the terminal side performing the power saving method to be independent of the STA.
  • the part that performs the power saving method on the part, or the network side is the 'If' of the independent part other than the CAP.
  • the application scenario is an enhanced ultra-high speed wireless local area network (EUHT) system, and the EUHT adopts multi-channel transmission, multi-user multiple input multiple output (MU-MIMO), and the like.
  • EUHT also uses a centralized scheduling mechanism to avoid collisions and backoffs of air interfaces and to provide differentiated services for different services.
  • the EUHT system can provide at least 1.2 Gbps of throughput to meet current user requirements for wireless network data transmission rates.
  • the EUHT system here is only an example of an application scenario, and in fact the method of the present invention can also be applied to other wireless systems.
  • the STA triggers the sleep operation
  • the CAP triggers the activation operation as an example.
  • the STA can trigger a sleep operation when there is no uplink transmission for a period of time.
  • FIG. 2 is a flow chart of an electrical method according to an embodiment of the present invention, where the process includes:
  • Step 21 The STA sends a sleep request to the CAP.
  • the dormancy request encapsulation is implemented in a sleep request frame (SLP_REQ), which carries the reported sleep parameter.
  • SLP_REQ sleep request frame
  • the specific value of the sleep parameter reported by the STA can be selected from the system pre-configured values.
  • the sleep parameters reported above are specifically: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of a subsequent sleep window.
  • the sleep window and the listening window are set, and the size of the listening window is fixed.
  • a sleep window and a listening window are called a sleep cycle, and in each sleep cycle, the default sleep window is in front and the listening window is behind.
  • FIG. 3 is a schematic diagram of a frame structure of a sleep request frame according to Embodiment 1 of the present invention, where the number above indicates the number of bits that may be occupied by each field in the frame body of the sleep request frame.
  • the sleep start time field indicates the start time of the start sleep window requested by the STA, and is represented by a frame number.
  • the initial sleep window field indicates the size of the initial sleep window requested by the STA, in units of time.
  • the above listening window field indicates the size of the listening window requested by the STA, in units of time.
  • the subsequent sleep window change field indicates a change rule of the subsequent sleep window requested by the STA relative to the start sleep window, where the change rule may be multiplication, or may be based on a function relationship change or the like. Specifically, different values may be defined in the subsequent sleep window change field to indicate subsequent rest The sleep window changes to t regularity.
  • the size of the sleep window requested by the STA is fixed.
  • Step 22 The CAP sends a sleep indication to the STA.
  • the dormancy indication is implemented by a sleep response frame (SLP_RSP), which carries an authorized sleep parameter determined according to the reported sleep parameter.
  • SLP_RSP sleep response frame
  • the CAP can adjust the sleep parameter reported by the STA.
  • the CAP can adjust the sleep parameters reported by these STAs, so that these STAs enter the sleep mode with the same sleep parameters as possible, which is more beneficial to the management of the CAP.
  • the hibernation parameters of the above authorization are specifically: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of a subsequent sleep window.
  • FIG. 4 is a schematic diagram of a frame structure of a sleep response frame according to Embodiment 1 of the present invention, where the number above indicates the number of bits that may be occupied by each field in the frame body.
  • the sleep start time field above indicates the start time of the start sleep window allowed by the CAP, represented by a frame number.
  • the above starting sleep window field indicates the size of the initial sleep window allowed by the CAP, in units of time.
  • the above listening window field indicates the size of the listening window allowed by the CAP, in units of time.
  • the subsequent sleep window change field indicates the change rule of the subsequent sleep window allowed by the CAP relative to the start sleep window, and the change rule here may be multiplication, or may be based on a change in the function relationship. Specifically, different values may be defined in the subsequent sleep window change field to indicate the change rule of the subsequent sleep window.
  • the size of the sleep window allowed by the CAP is fixed.
  • the STA may return an acknowledgment to the CAP after correctly receiving the sleep response frame, where the acknowledgment may be a separate acknowledgment (ACK) or a group acknowledgment (GroupAck).
  • the embodiment of the present invention provides a group acknowledgement (GroupAck) mode, where the group acknowledgement frame includes a management control frame indicator bit, and further includes a bitmap corresponding to different service flows of the same user, where the STA may be in the above-mentioned management control frame indicator bit.
  • the indication indicating whether the sleep response frame is correctly received or not is filled in.
  • the STA may send the acknowledgement for the different service flow to the CAP together by using the bitmap in the group acknowledgement frame.
  • Step 23 The STA shuts down one or more hardware units inside itself and enters sleep mode.
  • the sleep mode includes: turning off one or more hardware units in the sleep window, and turning on the listening unit in the listening window to listen for the service indication sent by the CAP. Entering sleep as shown in Figure 2 indicates the sleep window.
  • the listening unit that is turned on here may be in a hardware unit that is turned off when entering sleep mode, or it may be a unit that is turned on only when a listening operation is required.
  • the listening unit may be a hardware component, a circuit, an integrated module, or the like including but not limited to implementing a listening function.
  • Step 24 The STA determines whether the service indication sent by the CAP is detected in the listening window. If yes, go to step 25, otherwise continue to maintain the sleep mode.
  • the CAP may first buffer the data to be sent.
  • the CAP sends a service indication to the STA in the latest listening window.
  • the CAP After the CAP reaches the preset threshold and sends a service indication to the STA, the CAP needs to wait.
  • the STA ends the sleep mode, and the CAP can continue to cache to be sent during this waiting period. STA data.
  • the service indication encapsulation is implemented in a downlink traffic indication frame (DTF_IND).
  • DTF_IND downlink traffic indication frame
  • FIG. 5 is a schematic structural diagram of a frame structure of a downlink service indication according to Embodiment 1 of the present invention, where the number above the figure indicates the number of bits that may be occupied by each field in the frame body.
  • the service indication (TI) field indicates whether the STA side has data of the STA. Specifically, a specific value may be defined in the service indication field to indicate whether there is data of the STA.
  • Step 25 The STA turns on all hardware units that have been turned off, and ends the sleep mode.
  • the activation mode shown in FIG. 2 means that the STA enters a normal working state, and the CAP can indicate the allocated downlink resources through the control channel (CCH), and send the cached data to the STAs in the cache order on the downlink resources, FIG. 2
  • the DATA shown in the figure refers to the STA receiving the data transmitted by the CAP.
  • the sleep operation is triggered by the STA, and the CAP trigger activation operation is taken as an example.
  • 6 is a flowchart of a power saving method according to Embodiment 2 of the present invention, where the process includes:
  • Step 61 The STA sends a sleep request to the CAP.
  • the dormancy request encapsulation is implemented in a dormancy request frame, where the reported sleep parameters are carried.
  • the sleep parameters reported above are specifically: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of a subsequent sleep window.
  • the frame structure of the sleep request frame in the second embodiment is the same as that in FIG.
  • the sleep window requested by the STA is a multiplication relationship.
  • other functional relationships can be set as long as the sleep window can be changed.
  • the subsequent sleep window is increased relative to the initial sleep window in order to reduce the number of times the STA listens for the service indication when there is no service data transmission, thereby further saving power.
  • the system can preset the upper limit value of the sleep window, and keep the fixed value when the sleep window increases to the upper limit value.
  • a sleep window and a listening window are called a sleep cycle, and in each sleep cycle, the default sleep window is in front and the listening window is behind.
  • Step 62 The CAP sends a sleep indication to the STA.
  • the dormancy indication encapsulation is implemented in the dormancy response frame, and the dormant parameter determined according to the reported sleep parameter is carried.
  • the above-mentioned authorized sleep parameters are specifically: a sleep start time, a start sleep window, a listening window, and a subsequent sleep window change information indicating a change rule of a subsequent sleep window.
  • the frame structure of the sleep response frame in the second embodiment is the same as that shown in FIG.
  • the size of the sleep window allowed by the CAP is a multiplication relationship.
  • the STA may feed back ACK or GroupAck to the CAP.
  • Step 63 The STA turns off one or more hardware units inside itself and enters the sleep mode.
  • Step 64 The STA determines whether the service indication sent by the CAP is detected in the listening window. If yes, go to step 65, otherwise continue to maintain the sleep mode.
  • the service indication encapsulation is implemented in a downlink service indication frame.
  • the frame structure of the downlink service indication frame in the second embodiment is the same as that shown in FIG.
  • the manner in which the CAP sends the service indication is the same as in the first embodiment.
  • Step 65 The STA turns on all the hardware units that have been turned off, and ends the sleep mode.
  • the activation mode shown in FIG. 6 means that the STA enters a normal working state, and the CAP can indicate the allocated downlink resources through the CCH, and send the cached data to the STAs in the cache order on the downlink resources, as shown in FIG. DATA means that the STA receives the data sent by the CAP.
  • the CAP can also perform data interaction with the CAP in addition to the cached data sent by the STA.
  • the CAP may indicate the allocated uplink and downlink resources through the CCH, and the STA may send data to the CAP by using the allocated uplink resource, and may receive the data sent by the CAP on the allocated downlink resource.
  • FIG. 7 is a flowchart of a three-power saving method according to an embodiment of the present invention, where the process includes:
  • Step 71 The STA sends a sleep request to the CAP.
  • the dormancy request encapsulation is implemented in a dormancy request frame, where the reported sleep parameters are carried.
  • the sleep parameters reported above are specifically: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of a subsequent sleep window.
  • the frame structure of the sleep request frame in the third embodiment is the same as that shown in FIG.
  • the size of the sleep window requested by the STA is fixed.
  • a sleep window and a listening window are called a sleep cycle, and in each sleep cycle, the default sleep window is first and the listening window is behind.
  • Step 72 The CAP sends a sleep indication to the STA.
  • the dormancy indication encapsulation is implemented in the dormancy response frame, and the dormant parameter determined according to the reported sleep parameter is carried.
  • the above-mentioned authorized sleep parameters are specifically: a sleep start time, a start sleep window, a listening window, and a subsequent sleep window change information indicating a change rule of a subsequent sleep window.
  • the frame structure of the sleep response frame in the third embodiment is the same as that shown in FIG.
  • the size of the sleep window allowed by the CAP is fixed.
  • the STA after receiving the sleep response frame correctly, the STA feeds back an ACK to the CAP or
  • Step 73 The STA turns off one or more hardware units inside itself and enters the sleep mode.
  • the STA may actively end the sleep mode and send a resource request to the CAP to request the uplink transmission resource required for the uplink data.
  • Step 75 The STA turns on all the hardware units that have been turned off, and ends the sleep mode.
  • the activation mode shown in FIG. 7 means that the STA enters a normal working state, and the STA may send a resource request to the CAP, requesting the CAP to allocate an uplink resource, and the CAP may indicate the allocated uplink resource through the CCH, and the STA may use the allocated uplink resource to The CAP sends data.
  • the DATA in Figure 7 indicates that the STA sends data to the CAP.
  • the STA ends the sleep mode when the data is sent by the STA. However, in the case that the STA has set the listening window, the STA will start the service indication sent by the CAP in the listening window. All hardware units are turned off, ending hibernation mode.
  • the CAP triggers the sleep operation and the STA triggers the activation as an example, and the CAP can actively request the STA to enter the sleep mode according to the working state of the STA.
  • FIG. 8 is a flowchart of a method for saving power according to an embodiment of the present invention, where the process includes:
  • Step 81 The CAP sends a sleep indication to the STA.
  • the CAP determines whether to send a dormancy indication according to one or more items of the STA's current service status, system capacity, and system resources. For example, if the CAP and the STA have no interaction of service data for a period of time, and the current system resources are very limited, the CAP can actively send a sleep indication to the STA and request it to enter the sleep mode.
  • the sleep indication in this step is implemented by a sleep response frame, which carries an authorized sleep parameter.
  • the authorized sleep parameters can be selected from the system pre-configured values, and other factors can be further considered. For example, if the CAP finds that multiple STAs currently need to enter the sleep mode, It is possible to select the same authorized sleep parameters for these STAs.
  • the frame structure of the sleep request frame in the fourth embodiment is the same as that in FIG.
  • the above-mentioned authorized sleep parameters are carried by the following fields: a sleep start time field, a start sleep window field, a listen window field, and a subsequent sleep window change field.
  • the sleep window allowed by the CAP is a multiplication relationship.
  • other functional relationships can be set as long as the change in the sleep window can be indicated.
  • the sleep window is increased to reduce the number of times the STA listens to the service indication when there is no service data transmission, thereby further saving power.
  • the system can preset the upper limit value of the sleep window, and the sleep window remains fixed after the sleep window is increased to the upper limit value.
  • a sleep window and a listening window are called a sleep cycle, and in each sleep cycle, the default sleep window is in front and the listening window is behind.
  • the STA After receiving the sleep request frame correctly, the STA returns an ACK or a GroupAck to the CAP.
  • Step 82 The STA turns off one or more hardware units inside itself and enters the sleep mode.
  • Step 83 The STA determines whether it has data to send to the CAP. If yes, go to step 84, otherwise continue to maintain the sleep mode.
  • Step 84 The STA turns on all the hardware units that have been turned off, and ends the sleep mode.
  • the activation mode shown in FIG. 8 means that the STA enters a normal working state, and the STA may send a resource request to the CAP to request to send the uplink data resource.
  • the CAP may allocate the uplink resource by using the CCH indication, and the STA may use the uplink resource to send the uplink resource to the CAP. data.
  • the DATA in Fig. 8 indicates that the STA transmits data to the CAP.
  • the STA ends the sleep mode when the data is sent by the STA. However, in the case that the STA has set the listening window, the STA will start the service indication sent by the CAP in the listening window. All hardware units are turned off, ending hibernation mode.
  • the STA can perform the data exchange with the CAP, and the CAP can use the CCH to indicate the allocated uplink and downlink resources, and then the STA can use the STA.
  • the allocated uplink resource sends data to the CAP, and receives the downlink data sent by the CAP in the allocated downlink resource.
  • the STA may not actively request to sleep, but wait for the sleep indication sent by the CAP to enter the sleep mode.
  • the STA may also request to sleep to the CAP.
  • the CAP triggers the sleep and the CAP triggers the activation as shown in FIG. 9.
  • the specific process is not described here.
  • the CAP when the CAP triggers the sleep, the CAP can resend the sleep indication until the set number of times is reached, if the CAP does not receive the ACK or GroupAck returned by the STA within the set number of frames after the sleep indication is sent, the CAP If this trigger fails to be hibernated, a new process of triggering sleep can be started. If the number of consecutive resends of the dormancy indication for the same STA exceeds the set number of times, the CAP considers that the STA is abnormal and deletes the STA from the active list.
  • the 10 is a terminal device for power saving according to the present invention, characterized in that the device comprises: a sleep execution unit 61, an activation execution unit 62, and a sleep indication receiving unit 63.
  • the sleep indication receiving unit 63 is configured to receive a sleep indication sent by the network side.
  • the sleep execution unit 61 is configured to: when the sleep indication receiving unit 63 receives the sleep indication sent by the network side, turn off one or more hardware units in the STA, and put the STA into the sleep mode.
  • the activation execution unit 62 is configured to: when the STA receives the service indication sent by the network side, or when the STA sends the data to the CAP on the network side, enable all the hardware units in the STA that are closed, and enable the STA End sleep mode.
  • the one or more hardware units in the STA are shut down according to the sleep indication on the network side, and the STA enters the sleep mode, and the STA receives the service indication sent by the network side.
  • the sleep mode can be ended in time, thereby keeping the STA in a minimum power state in a certain period, thereby saving power and air interface resources.
  • the terminal side device of the present invention may be located inside the STA, or may be a separate portion located on the terminal side and having a connection relationship with the STA.
  • FIG. 11 is a schematic structural diagram of a terminal device on the fifth power saving according to an embodiment of the present invention.
  • the device includes: a sleep execution unit 71, an activation execution unit 72, a sleep request unit 73, and a sleep indication receiving unit 74.
  • the sleep indication receiving unit 74 is configured to receive the sleep indication sent by the network side, and specifically includes: a sleep indication receiving subunit 741 and a sleep indication analysis subunit 742.
  • the sleep indication receiving subunit 741 is configured to receive a sleep indication sent by the network side.
  • the sleep indication parsing sub-unit 742 is configured to parse the authorized sleep parameter carried in the sleep indication.
  • the activation execution unit 72 is configured to: when the STA receives the service indication sent by the network side, or when the STA sends data to the CAP on the network side, turn on all the hardware units that have been turned off in the STA, and cause the STA to end the sleep mode.
  • the sleep request unit 73 is configured to send a sleep request to the network side, and specifically includes: a sleep parameter determination stator unit 731 and a sleep request transmission sub-unit 732.
  • the sleep parameter determination subunit 731 is used to determine the sleep parameter to be up to 4 ⁇ .
  • the sleep request sending sub-unit 732 is configured to send a sleep request carrying the reported sleep parameter to the network side.
  • the sleep start time the start sleep window
  • the listening window the subsequent sleep window change information indicating the change rule of the subsequent sleep window.
  • the sleep execution unit 71 includes: a sleep execution subunit 711 and a snoop subunit 712.
  • the sleep execution subunit 711 is configured to turn off one or more hardware units in the STA in each of the sleep windows.
  • the listening subunit 712 is configured to enable the listening unit in the STA in each listening window, and enable the STA to listen to the service indication sent by the network side.
  • the apparatus in FIG. 11 further includes: an acknowledgment unit, configured to send an ACK or a GroupAck to the network side after the sleep indication receiving unit 74 correctly receives the sleep indication.
  • an acknowledgment unit configured to send an ACK or a GroupAck to the network side after the sleep indication receiving unit 74 correctly receives the sleep indication.
  • FIG. 12 is a schematic structural diagram of a network side device for power saving according to the present invention.
  • the device includes: a sleep indication unit 81 and an activation indicating unit 82.
  • the sleep indication unit 81 is configured to send a sleep indication to the terminal side.
  • the activation indication unit 82 is configured to send a service indication to the terminal side.
  • the network side device of the node in the present invention can send a sleep indication to the terminal side, so that the STA on the terminal side enters the sleep mode, and can send a service indication to the terminal side, so that the STA on the terminal side ends the sleep mode.
  • the STA is placed in a minimum power state for a certain period of time, thereby saving power and air interface resources.
  • the network side device in the present invention may be located inside the CAP, or may be a separate part located on the network side and having a connection relationship with the CAP.
  • FIG. 13 is a schematic structural diagram of a network side device for saving power according to Embodiment 6 of the present invention.
  • the device includes: a sleep indication unit 91, an activation indication unit 92, and a sleep request receiving unit 93.
  • the sleep request receiving unit 93 is configured to receive the sleep request sent by the terminal side, and specifically includes: a sleep request receiving subunit 931 and a sleep request parsing subunit 932.
  • the sleep request receiving subunit 931 is configured to receive a sleep request sent by the terminal side.
  • the sleep request parsing sub-unit 932 is configured to parse the reported sleep parameter carried in the sleep request.
  • the sleep indication unit 91 includes: a sleep parameter determination subunit 911 and a sleep indication transmission subunit 912.
  • the sleep parameter determining subunit 911 is configured to determine an authorized sleep parameter according to the reported sleep parameter carried in the sleep request.
  • the specific method for determining the authorized sleep parameters herein is the same as that described in the previous text invention method.
  • the sleep indication sending subunit 912 is configured to send a sleep indication carrying the authorized sleep parameter to the terminal side.
  • the sleep start time the start sleep window
  • the listening window the subsequent sleep window change information indicating the change rule of the subsequent sleep window.
  • the activation instructing unit 92 is configured to send a service indication to the terminal side when the CAP has the service data transmitted to the STA, and specifically includes: a buffer status determining subunit 921 and a service indication sending subunit 922.
  • the buffer status determining sub-unit 921 is configured to determine whether the data sent by the CAP buffer to the STA reaches a predetermined threshold.
  • the service indication sending subunit 922 is configured to send a service indication to the network side in the latest listening window when the buffer status determining subunit 921 determines that the data sent by the CAP cache to the STA reaches a predetermined threshold.
  • the service indication transmitting subunit 922 acquires the authorized sleep parameter from the sleep parameter determining subunit 911, thereby obtaining specific information such as a listening window.
  • the apparatus shown in Figure 13 may further include: an acknowledgment receiving unit, configured to receive an ACK or a GroupAck sent after the terminal side correctly receives the sleep indication.
  • an acknowledgment receiving unit configured to receive an ACK or a GroupAck sent after the terminal side correctly receives the sleep indication.
  • FIG. 14 is a schematic structural diagram of a network side device with power saving according to an embodiment of the present invention.
  • the device includes: a sleep indication unit 101 and an activation indication unit 102.
  • the sleep indication unit 101 includes a parsing subunit 1011 and a sleep indication transmitting subunit 1012.
  • the parsing subunit 1011 is configured to parse one or more items of the STA's current service status, system capacity, and system resources.
  • the sleep indication sending subunit 1012 is configured to determine an authorized sleep parameter according to the parsing result obtained by the parsing subunit 1011, and send a sleep indication carrying the authorized sleep parameter to the terminal side.
  • the method for determining the authorized sleep parameters herein is the same as that described in the previous text invention method.
  • the sleep parameters of the above authorization are: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of the subsequent sleep window.
  • the activation instructing unit 102 is configured to send a service indication to the terminal side when the CAP has the service data transmitted to the STA, and specifically includes a buffer status determining subunit 1021 and a service indication sending subunit 1022.
  • the buffer status determining subunit 1021 is configured to determine whether the data sent by the CAP buffer to the STA is The preset threshold is reached.
  • the service indication sending sub-unit 1022 is configured to: when the buffer status determining sub-unit 1021 determines that the data sent by the CAP buffer to the STA reaches a predetermined threshold, send a service indication to the terminal side in a nearest listening window.
  • the service indication sending subunit 1022 obtains the authorized sleep parameter from the sleep indication transmitting unit 1012, thereby obtaining specific information such as a listening window.
  • the apparatus shown in Figure 14 may further include: an acknowledgment receiving unit, configured to receive an ACK or a GroupAck sent after the terminal side correctly receives the sleep indication.
  • the dormant indication transmitting subunit 1012 monitors the acknowledgment receiving unit within the set number of frames after sending the dormant indication, and may resend if the acknowledgment receiving unit does not receive the ACK or GroupAck sent by the terminal side.
  • the sleep indication is reached until the set number of times is reached. It is considered that the sleep triggering process fails, and a new sleep triggering process can be started. If the number of times the sleep indication transmitting subunit 1012 continuously transmits the sleep indication for the same STA exceeds the set number of times, the STA is considered to be abnormal, and the device that triggers the activity list management may delete the STA from the activity list.
  • the apparatus of the above sixth embodiment and the seventh embodiment may also be integrated in one apparatus, wherein all the components described in the sixth embodiment and the seventh embodiment will be included in the sleep indicating unit.
  • the present invention also provides three methods for power saving.
  • the first method for power saving provided by the present invention includes: generating a sleep request; and transmitting the sleep request, so that the receiving end receiving the sleep request sends a sleep indication indicating that the sleep mode is entered.
  • the sleep request carries the reported sleep parameter.
  • the sleep request is encapsulated in a sleep request frame.
  • the frame structure of the sleep request frame herein can be as shown in FIG.
  • a second method for power saving according to the present invention includes: generating a sleep indication; transmitting the sleep indication, causing a receiving end receiving the sleep indication to shut down one or more hardware units to enter a sleep mode.
  • the dormant indication carries an authorized sleep parameter.
  • the sleep indication is a sleep response frame.
  • the frame structure of the sleep response frame herein can be as shown in FIG.
  • the sleep parameters are: a sleep start time, a start sleep window, a listening window, and subsequent sleep window change information indicating a change rule of a subsequent sleep window.
  • the third method for saving power provided by the present invention includes: generating a service indication; sending the service indication, enabling the receiving end that receives the service indication to turn on all the closed hardware units, and ending the sleep mode.
  • the service indication is encapsulated in a downlink service indication frame.
  • the frame structure of the downlink service indication frame herein may be as shown in FIG. 5.

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Abstract

本发明公开了节电方法及装置，接收网络侧发送的休眠指示，关闭站点STA内部的一个或多个硬件单元、使STA进入休眠模式；在STA接收到网络侧发送的业务指示或STA有数据要向网络侧的中心接入点CAP发送时，开启已关闭的所有硬件单元、使STA结束休眠模式。应用本发明，可以在一定周期内使STA处于最小的功率状态，从而节省功率和空中接口资源。

Description

节电方法及装置 本申请要求申请日为 201 1年 8月 9 日， 申请号为 201110227591.2， 发明 名称为节电方法及装置的中国专利申请的优先权， 该在先申请的全部内容均已 在本申请中体现。
本申请要求申请日为 2012年 2月 7 日， 申请号为 201210026538.0， 发明 名称为节电方法及装置的中国专利申请的优先权， 该在先申请的全部内容均已 在本申请中体现。 技术领域
本发明属于通信技术领域， 尤其涉及节电方法及装置。 背景技术
在当前的移动互联网和物联网蓬勃发展的时代， 无线系统被越来越广泛 的应用， 音频、 视频、 网页、 恒定速率业务和可变速率业务等已经开始从有 线传输介质向无线传输介质转移。
无线系统中的站点 （ STA )在通过入网流程接入中心接入点 （ CAP )后， 可以长时间驻留在网络中， 即使当前没有业务传输， STA也需要保持激活状 态， 耗费了大量的功率， 浪费了空中接口资源。 发明内容
有鉴于此， 本发明的目的是提供节电方法及装置， 使 STA在一定周期之 内处于最小的功率状态， 从而节省功率和空中接口资源。
为了对披露的实施例的一些方面有一个基本的理解， 下面给出了筒单的 概括。 该概括部分不是泛泛评述， 也不是要确定关键 /重要组成元素或描绘 这些实施例的保护范围。 其唯一目的是用筒单的形式呈现一些概念， 以此作 为后面的评细说明的序言。
本发明的技术方案是这样实现的：
一种节电方法， 该方法包括：
接收网络侧发送的休眠指示， 关闭站点 STA 内部的一个或多个硬件单 元、 使 STA进入休眠模式；
在 STA接收到网络侧发送的业务指示或 STA有数据要向网络侧的中心 接入点 CAP发送时， 开启已关闭的所有硬件单元、 使 STA结束休眠模式。
一种实施例中， 该方法还包括： 向网络侧发送休眠请求。
可选的， 所述休眠请求中携带上报的休眠参数。
可选的， 所述休眠指示中携带根据所述上报的休眠参数确定的授权的休 眠参数。
一种实施例中，所述休眠指示由网络侧才艮据 STA的当前业务情况、 系统 容量和系统资源中的一项或几项确定、 并携带授权的休眠参数。
一种实施例中， 所述休眠参数是： 休眠开始时间、 起始休眠窗口、 侦听 窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变化信息；
所述侦听窗口与所述休眠窗口间隔设置。
可选的， 所述休眠开始时间指示所述起始休眠窗口的开始时刻， 用帧号 表示。
可选的， 所述休眠模式包括： 在每个所述休眠窗口中关闭所述一个或多 个硬件单元， 在每个所述侦听窗口中开启侦听单元、 使 STA侦听所述业务指 示。
可选的， 所述业务指示， 由网络侧在 CAP緩存发送给 STA的数据到达 预定门限后的最近的侦听窗口中发送。
一种实施例中， 该方法还包括： 在正确接收所述休眠指示后， 向网络侧 发送确认。
一种节电的终端侧装置， 该装置包括：
休眠指示接收单元， 用于接收网络侧发送的休眠指示；
休眠执行单元， 用于在所述休眠指示接收单元接收到所述休眠指示时， 关闭 STA中的一个或多个硬件单元、 使 STA进入休眠模式；
激活执行单元， 用于在 STA接收到网络侧发送的业务指示、 或 STA要 向网络侧的 CAP发送数据时， 开启 STA中已关闭的所有硬件单元、 使 STA 结束休眠模式。
一种实施例中， 该装置中还包括： 休眠请求单元， 用于向网络侧发送休 眠请求。
可选的， 所述休眠请求单元包括：
休眠参数确定子单元， 用于确定要上报的休眠参数；
休眠请求发送子单元， 用于向网络侧发送携带上报的休眠参数的休眠请 求。
可选的， 所述休眠指示接收单元包括：
休眠指示接收子单元， 用于接收网络侧发送的休眠指示；
休眠指示解析子单元， 用于解析所述休眠指示中携带的授权的休眠参 数。
一种实施例中， 所述休眠指示接收单元包括：
休眠指示接收子单元， 用于接收网络侧发送的休眠指示；
休眠指示解析子单元， 用于解析所述休眠指示中携带的授权的休眠参 数。
一种实施例中， 所述休眠参数是： 休眠开始时间、 起始休眠窗口、 侦听 窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变化信息；
所述侦听窗口与所述休眠窗口间隔设置。
可选的， 所述休眠开始时间指示所述起始休眠窗口的开始时刻， 用帧号 表示。
可选的， 所述休眠执行单元包括：
休眠执行子单元，用于在每个所述休眠窗口中关闭 STA中的一个或多个 硬件单元；
侦听子单元， 用于在每个所述侦听窗口中开启 STA 中的侦听单元、 使 STA侦听所述业务指示。
—种实施例中， 该装置还包括： 确认单元， 用于在所述休眠指示接收单 元正确接收所述休眠指示后， 向网络侧发送确认。
一种节电的网络侧装置， 该装置包括：
休眠指示单元， 用于向终端侧发送休眠指示；
激活指示单元， 用于向终端侧发送业务指示。
—种实施例中， 该装置还包括：
休眠请求接收单元， 用于接收终端侧发送的休眠请求。 可选的， 所述休眠请求接收单元包括：
休眠请求接收子单元， 用于接收终端侧发送的休眠请求；
休眠参数解析子单元， 用于解析所述休眠请求中携带的上报的休眠参 数。
可选的， 所述休眠指示单元包括：
休眠参数确定子单元， 用于根据所述上报的休眠参数， 确定授权的休眠 参数；
休眠指示发送子单元， 用于向终端侧发送携带授权的休眠参数的休眠指 示。
一种实施例中， 所述休眠指示单元包括：
解析子单元， 用于解析 STA的当前业务情况、 系统容量和系统资源中的 一项或几项；
休眠指示发送子单元， 用于根据解析子单元得出的解析结果， 向终端侧 发送携带授权的休眠参数的休眠指示。
一种实施例中， 所述休眠参数是： 休眠开始时间、 起始休眠窗口、 侦听 窗口、 及指示休眠窗口变化规律的后续休眠窗口变化信息；
所述侦听窗口与所述休眠窗口间隔设置。
可选的， 所述休眠开始时间指示所述起始休眠窗口的开始时刻， 用帧号 表示。
可选的， 所述激活指示单元包括：
緩存状态判定子单元， 用于判定 CAP緩存发送给 STA的数据是否达到 预定门限；
业务指示发送子单元， 用于在所述緩存状态判定子单元判定 CAP 緩存 发送给 STA的数据达到预定门限时，在最近的侦听窗口向终端侧发送所述业 务指示。
一种实施例中， 该装置还包括： 确认接收单元， 用于接收终端侧正确接 收所述休眠指示后发送的确认。
一种用于节电的方法， 该方法包括：
生成休眠请求；
发送所述休眠请求， 使接收休眠请求的接收端发送指示进入休眠模式的 休眠指示。
可选的， 所述休眠请求中携带上报的休眠参数。
可选的， 所述休眠请求封装在休眠请求帧中。
一种用于节电的方法， 该方法包括：
生成休眠指示；
发送所述休眠指示， 使接收所述休眠指示的接收端关闭一个或多个硬件 单元， 进入休眠模式。
可选的， 所述休眠指示中携带授权的休眠参数。
可选的， 所述休眠指示为休眠响应帧。
可选的， 所述休眠参数是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变化信息。
一种用于节电的方法， 该方法包括：
生成业务指示；
发送所述业务指示， 使接收所述业务指示的接收端开启已关闭的所有硬 件单元， 结束休眠模式。
可选的， 所述业务指示封装在下行业务指示帧中。 可见， 本发明的节电方法及装置中， 可以根据网络侧发送的休眠指示关 闭 STA的一个或多个硬件单元， 在 STA接收到网络侧的业务指示或 STA要 向网络侧的 CAP发送数据时， 可以开启已关闭的所有硬件单元、 使 STA结 束休眠模式， 由此在一定周期内使 STA处于最小的功率状态， 从而节省功率 和空中接口资源。
为了上述以及相关的目的， 一个或多个实施例包括后面将详细说明并在 权利要求中特别指出的特征。下面的说明以及附图评细说明某些示例性方面， 并且其指示的仅仅是各个实施例的原则可以利用的各种方式中的一些方式。 其它的益处和新颖性特征将随着下面的详细说明结合附图考虑而变得明显， 所公开的实施例是要包括所有这些方面以及它们的等同。 附图说明
图 1为本发明节电方法的流程图；
图 2为本发明实施例一节电方法的流程图；
图 3为本发明实施例一休眠请求帧的帧体结构示意图；
图 4为本发明实施例一休眠响应帧的帧体结构示意图；
图 5为本发明实施例一下行业务指示帧的帧体结构示意图；
图 6为本发明实施例二节电方法的流程图；
图 7为本发明实施例三节电方法的流程图；
图 8为本发明实施例四节电方法的流程图；
图 9为本发明实施例中另一种节电方法的流程图；
图 10为本发明节电的终端侧装置的结构示意图；
图 11为本发明实施例五节电的终端侧装置的结构示意图；
图 12为本发明节电的网络侧装置的结构示意图；
图 13为本发明实施例六节电的网络侧装置的结构示意图；
图 14为本发明实施例七节电的网络侧装置的结构示意图。 具体实施方式
以下描述和附图充分地示出本发明的具体实施方案， 以使本领域的技术 人员能够实践它们。 其他实施方案可以包括结构的、 逻辑的、 电气的、 过程 的以及其他的改变。 实施例仅代表可能的变化。 除非明确要求， 否则单独的 组件和功能是可选的， 并且操作的顺序可以变化。 一些实施方案的部分和特 征可以被包括在或替换其他实施方案的部分和特征。 本发明的实施方案的范 围包括权利要求书的整个范围， 以及权利要求书的所有可获得的等同物。 在 本文中， 本发明的这些实施方案可以被单独地或总地用术语 "发明" 来表示， 这仅仅是为了方便， 并且如果事实上公开了超过一个的发明， 不是要自动地 限制该应用的范围为任何单个发明或发明构思。
图 1为本发明节电方法的流程图， 该流程包括：
步骤 11 : 接收网络侧发送的休眠指示， 关闭 STA 内部的一个或多个硬 件单元、 使 STA进入休眠模式。
这里的一个或多个硬件单元， 包括但不限于硬件的部件、 电路、 集成模 块等。
STA进入休眠模式后， 不能发送和接收数据， 即在一定周期内处于最小 功率状态。
步骤 12: 在 STA接收到网络侧发送的业务指示或 STA有数据要向网络 侧的 CAP发送时， 开启已关闭的所有硬件单元、 使 STA结束休眠模式。 STA结束休眠模式后将进入激活模式，可以正常通信，处于全功率状态。 可见， 本发明的节电方法中， 可以根据网络侧发送的休眠指示关闭 STA 的一个或多个硬件单元， 在 STA接收到网络侧的业务指示或 STA要向网络 侧的 CAP发送数据时， 可以开启已关闭的所有硬件单元、 使 STA结束休眠 模式， 由此在一定周期内使 STA处于最小的功率状态， 从而节省功率和空中 接口资源。 另一方面， 本发明的节电方法中关闭的是一个或多个硬件单元， STA将处于不能正常通信的状态， 是一种 STA级别的节电， 执行筒单且节电 效果好。
在 STA进入休眠模式之后， CAP只需维护 STA的状态信息，例如该 STA 已注册且进入休眠状态， 从而减少为该 STA服务的空口资源的使用。
下面给出本发明方法的几个可选实施例， 在这些可选实施例中， 假设终 端侧执行节电方法的主体是终端侧的 STA中的一部分， 网络侧执行节电方法 的主体是网络侧的 CAP中的一部分，所以以下可选实施例中的描述均直接以 STA和 CAP为主体进行描述， 但是这些可选实施例并不能限制终端侧执行 节电方法的主体是 STA 之外的独立部分、 或网络侧执行节电方法的主体是 CAP之外的独立部分的 'If况。
在以下本发明方法的几个可选实施例中， 個—设应用场景为增强型超高速 无线局域网技术 （ EUHT ) 系统， EUHT 通过多信道传输、 多用户多入多出 ( MU-MIMO ) 等技术大幅提高了系统容量。 EUHT 还通过使用集中调度机 制， 避免空口的碰撞和退避，并且能对不同的业务提供差异化服务。 EUHT系 统能提供至少 1.2Gbps的呑吐量， 以满足当前用户对无线网络数据传输速率 的要求。 这里的 EUHT系统仅为一种应用场景的举例， 实际上本发明方法还 可以应用于其他无线系统中。
实施例一
本实施例一中， 以 STA触发休眠操作、 且 CAP触发激活操作为例， 当
STA在一段时间内都没有上行传输时， 就可以触发休眠操作。
图 2为本发明实施例一节电方法的流程图， 该流程包括：
步骤 21： STA向 CAP发送休眠请求。
本步骤中， 休眠请求封装在休眠请求帧 （SLP— REQ ) 中实现， 其中携带 上报的休眠参数。 STA上报的休眠参数的具体取值可以从系统预先配置值中 选取。
上述上报的休眠参数具体是： 休眠开始时间、起始休眠窗口、侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变化信息。
本发明实施例中的休眠窗口和侦听窗口间隔设置， 侦听窗口的大小固 定。一个休眠窗口和一个侦听窗口称为一个休眠周期，且在每个休眠周期中， 都默认休眠窗口在前、 侦听窗口在后。
图 3为本发明实施例一中休眠请求帧的帧体结构示意图， 图示上方的数 字表示休眠请求帧的帧体中各个字段可能占用的比特数。
上述休眠开始时间字段， 指示 STA请求的起始休眠窗口的开始时刻，以 帧号表示。
上述起始休眠窗口字段， 指示 STA请求的起始休眠窗口的大小，以时间 为单位。
上述侦听窗口字段， 指示 STA请求的侦听窗口的大小， 以时间为单位。 上述后续休眠窗口变化字段，指示 STA请求的后续休眠窗口相对于起始 休眠窗口的变化规律， 这里的变化规律可以是倍增， 还可以是基于函数关系 变化等。 具体的， 后续休眠窗口变化字段中可以定义不同的值来指示后续休 眠窗口变 t规律。
在本实施例一中， STA请求的休眠窗口的大小固定。
步骤 22： CAP向 STA发送休眠指示。
本步骤中， 休眠指示由休眠响应帧 （SLP— RSP ) 实现， 其中携带根据所 述上报的休眠参数确定出的授权的休眠参数。 AP确定授权的休眠参数的方 法有艮多种， 这里举出如下几个例子：
① 如果 STA上 4艮的休眠参数不在系统预先配置值的范围内， CAP可以 调整 STA上报的休眠参数；
② 如果同一时间有多个 STA请求休眠， CAP可以对这些 STA上报的休 眠参数进行调整， 使得这些 STA尽可能以相同的休眠参数进入休眠模式， 从 而更有利于 CAP的管理。
上述授权的休眠参数具体是： 休眠开始时间、起始休眠窗口、侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变化信息。
图 4为本发明实施例一中休眠响应帧的帧体结构示意图， 图示上方的数 字表示该帧体中各个字段可能占用的比特数。
上述休眠开始时间字段， 指示 CAP 允许的起始休眠窗口的开始时刻， 以帧号表示。
上述起始休眠窗口字段， 指示 CAP 允许的起始休眠窗口的大小， 以时 间为单位。
上述侦听窗口字段， 指示 CAP允许的侦听窗口的大小， 以时间为单位。 上述后续休眠窗口变化字段， 指示 CAP 允许的后续休眠窗口相对于起 始休眠窗口的变化规律， 这里的变化规律可以是倍增， 还可以是基于函数关 系变化等。 具体的， 后续休眠窗口变化字段中可以定义不同的值来指示后续 休眠窗口的变化规律。
在本实施例一中， CAP允许的休眠窗口的大小固定。
作为一种可选的方式， STA 可以在正确接收到休眠响应帧后， 向 CAP 返回确认，这里的确认可以是单独确认（ ACK ),还可以是组确认（ GroupAck )。 本发明实施例提出一种组确认（ GroupAck )方式， 组确认帧中包括管理控制 帧指示位， 还包括对应同一用户不同业务流的位图 （bitmap ), 这里 STA可 以在上述管理控制帧指示位中填写指示休眠响应帧正确接收与否的指示， 后 续在基于业务流进行数据传输时， STA可以利用组确认帧中的 bitmap, 将针 对不同业务流的确认一起发送给 CAP。
步骤 23： STA关闭自身内部的一个或多个硬件单元、 进入休眠模式。 本步骤中， 休眠模式包括： 在休眠窗口中关闭一个或多个硬件单元， 在 侦听窗口中开启侦听单元， 以侦听 CAP发送的业务指示。 图 2中所示的进入 休眠， 即表示休眠窗口。
这里开启的侦听单元， 可能包含在进入休眠模式时关闭的硬件单元中， 也可能是只在需要侦听操作时才开启的单元。 侦听单元可以是包括但不限于 实现侦听功能的硬件部件、 电路和集成模块等。
步骤 24: STA判断是否在侦听窗口侦听到 CAP发送的业务指示， 如果 是， 执行步骤 25， 否则继续保持休眠模式。
本步骤中， CAP要向已进入休眠模式的 STA发送数据时， 可以先緩存 要发送的数据， 当緩存数据达到预设门限时， CAP在最近的一个侦听窗口中 向该 STA发送业务指示。
CAP在緩存数据达到预设门限、 并向 STA发送业务指示后， 需要等待
STA结束休眠模式， CAP在这一段等待的时间内， 还可以继续緩存要发送给 STA的数据。
业务指示封装在下行业务指示帧 （DTF— IND ) 中实现。
图 5为本发明实施例一中下行业务指示^的帧体结构示意图， 图示上方 的数字表示该帧体中各个字段可能占用的比特数。
上述业务指示（TI )字段， 指示 CAP侧是否有本 STA的数据。 具体的， 业务指示字段中可以定义具体的值来表示是否有本 STA的数据。
步骤 25: STA开启已关闭的所有硬件单元、 结束休眠模式。
图 2中所示的激活模式， 指 STA进入正常的工作状态， CAP可以通过 控制信道（CCH )指示分配的下行资源， 并在该下行资源上按照緩存顺序向 STA发送已緩存的数据，图 2中所示的 DATA指 STA接收 CAP发送的数据。
实施例二
本实施例二中， 仍以 STA触发休眠操作、 且 CAP触发激活操作为例。 图 6为本发明实施例二节电方法的流程图， 该流程包括：
步骤 61： STA向 CAP发送休眠请求。
本步骤中， 休眠请求封装在休眠请求帧中实现， 其中携带上报的休眠参 数。 上述上报的休眠参数具体是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变化信息。 本实施例二中的休 眠请求帧的帧体结构与图 3中的相同。
本实施例二中， STA请求的休眠窗口为倍增关系。 当然， 除了这种倍增 关系之外， 还可以设定其他函数关系， 只要能指示休眠窗口的变化即可。
后续休眠窗口相对于起始休眠窗口增大， 是为了在没有业务数据传输时 减少 STA侦听业务指示的次数， 从而进一步节省功率。
基于本实施例二中休眠窗口的倍增关系， 系统可以预先设置休眠窗口的 上限值， 当休眠窗口增大到该上限值后即保持固定不变。
本实施例二中， 一个休眠窗口和一个侦听窗口称为一个休眠周期， 且在 每个休眠周期中， 都默认休眠窗口在前、 侦听窗口在后。
步骤 62: CAP向 STA发送休眠指示。
本步骤中， 休眠指示封装在休眠响应帧中实现， 其中携带根据所述上报 的休眠参数确定出的授权的休眠参数。 上述授权的休眠参数具体是： 休眠开 始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休 眠窗口变化信息。本实施例二中的休眠响应帧的帧体结构与图 4所示的相同。
本实施例二中， CAP允许的休眠窗口的大小为倍增关系。
可选的， STA在正确接收到休眠响应帧后， 可以向 CAP反馈 ACK或 GroupAck„
步骤 63： STA关闭自身内部的一个或多个硬件单元、 进入休眠模式。 步骤 64: STA判断是否在侦听窗口侦听到 CAP发送的业务指示， 如果 是， 执行步骤 65， 否则继续保持休眠模式。
本步骤中， 业务指示封装在下行业务指示帧中实现。 本实施例二中下行 业务指示帧的帧体结构与图 5所示的相同。
CAP发送业务指示的方式与实施例一中相同。
步骤 65: STA开启已关闭的所有硬件单元、 结束休眠模式。
图 6中所示的激活模式， 指 STA进入正常的工作状态， CAP可以通过 CCH指示分配的下行资源， 并在该下行资源上按照緩存顺序向 STA发送已 緩存的数据， 图 6中所示的 DATA指 STA接收 CAP发送的数据。
在上述实施例一和实施例二中， 在 STA 进入正常的工作 态后， 除了
CAP向 STA发送已緩存的数据外， STA也可以与 CAP正常进行数据交互， CAP可以通过 CCH指示分配的上下行资源， STA利用分配的上行资源可以 向 CAP发送数据， 在分配的下行资源上可以接收 CAP发送的数据。
实施例三
本实施例三中， 以 STA触发休眠操作、 且 STA触发激活操作为例。 图 7为本发明实施例三节电方法的流程图， 该流程包括：
步骤 71： STA向 CAP发送休眠请求。
本步骤中， 休眠请求封装在休眠请求帧中实现， 其中携带上报的休眠参 数。 上述上报的休眠参数具体是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变化信息。 本实施例三中的休 眠请求帧的帧体结构与图 3所示的相同。
本实施例三中， STA请求的休眠窗口的大小固定不变。 一个休眠窗口和 一个侦听窗口称为一个休眠周期， 且在每个休眠周期中， 都默认休眠窗口在 前、 侦听窗口在后。
步骤 72: CAP向 STA发送休眠指示。
本步骤中， 休眠指示封装在休眠响应帧中实现， 其中携带根据所述上报 的休眠参数确定出的授权的休眠参数。 上述授权的休眠参数具体是： 休眠开 始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休 眠窗口变化信息。本实施例三中的休眠响应帧的帧体结构与图 4所示的相同。
本实施例三中， CAP允许的休眠窗口的大小固定不变。
可选的， STA 在正确接收到休眠响应帧后， 向 CAP 反馈 ACK 或
GroupAck„
步骤 73： STA关闭自身内部的一个或多个硬件单元、 进入休眠模式。 步骤 74: STA判断自身是否有数据要向 CAP发送， 如果是， 执行步骤 75， 否则继续保持休眠模式。
本步骤中， STA有上行数据发送时， 可以主动结束休眠模式， 并向 CAP 发送资源请求， 以请求发送上行数据所需的上行传输资源。
步骤 75: STA开启已关闭的所有硬件单元、 结束休眠模式。
图 7中所示的激活模式，指 STA进入正常的工作状态， STA可以向 CAP 发送资源请求， 请求 CAP分配上行资源， CAP可以通过 CCH指示分配的上 行资源， STA可以利用所分配的上行资源向 CAP发送数据。 图 7中的 DATA 表示 STA向 CAP发送数据。
虽然本实施例中以 STA在自身有数据发送时结束休眠模式为例，但实际 上， 既然已设置侦听窗口， STA如果先在侦听窗口侦听到 CAP下发的业务 指示， 也会开启已关闭的所有硬件单元、 结束休眠模式。
实施例四
本实施例四中， 以 CAP触发休眠操作、 且 STA触发激活为例， CAP才艮 据 STA的工作状态， 可以主动要求 STA进入休眠模式。
图 8为本发明实施例四节电方法的流程图， 该流程包括：
步骤 81： CAP向 STA发送休眠指示。
本步骤中， CAP根据 STA的当前业务情况、 系统容量和系统资源中的 一项或几项确定是否发送休眠指示。 例如， 假设 CAP和 STA在一段时间内 都没有业务数据的交互， 而且当前系统资源非常有限， CAP 就可以主动向 STA发送休眠指示， 要求其进入休眠模式。
本步骤中的休眠指示由休眠响应帧实现， 其中携带授权的休眠参数。 这 里的授权的休眠参数， 可以从系统预先配置值中选取， 还可以进一步考虑其 他因素， 例如， 如果 CAP发现当前有多个 STA都需要进入休眠模式， 则尽 可能为这些 STA选择相同的授权的休眠参数。
本实施例四中的休眠请求帧的帧体结构与图 3中的相同。
上述授权的休眠参数由以下字段携带： 休眠开始时间字段、 起始休眠窗 口字段、 侦听窗口字段及后续休眠窗口变化字段。
在本实施例四中， CAP允许的休眠窗口为倍增关系。 当然， 除了这种倍 增关系之外，还可以设定其他函数关系， 只要能够指示休眠窗口的变化即可。
休眠窗口增大，是为了在没有业务数据传输时减少 STA侦听业务指示的 次数， 从而进一步节省功率。
基于本实施例四中休眠窗口的倍增关系， 系统可以预先设置休眠窗口的 上限值， 当休眠窗口增大到该上限值后即保持固定不变。
本实施例四中， 一个休眠窗口和一个侦听窗口称为一个休眠周期， 且在 每个休眠周期中， 都默认休眠窗口在前、 侦听窗口在后。
可选的， STA 在正确接收到休眠请求帧后， 向 CAP 返回 ACK 或 GroupAck„
步骤 82: STA关闭自身内部的一个或多个硬件单元、 进入休眠模式。 步骤 83: STA判断自身是否有数据要向 CAP发送， 如果是， 执行步骤 84， 否则继续保持休眠模式。
步骤 84: STA开启已关闭的所有硬件单元、 结束休眠模式。
图 8中所示的激活模式，指 STA进入正常的工作状态， STA可以向 CAP 发送资源请求， 请求发送上行数据的资源， CAP可以通过 CCH指示分配上 行资源， STA可以利用该上行资源向 CAP发送数据。 图 8中的 DATA表示 STA向 CAP发送数据。
虽然本实施例中以 STA在自身有数据发送时结束休眠模式为例，但实际 上， 既然已设置侦听窗口， STA如果先在侦听窗口侦听到 CAP下发的业务 指示， 也会开启已关闭的所有硬件单元、 结束休眠模式。
上述实施例三和实施例四中， STA结束休眠模式之后，除了 STA向 CAP 发送上行数据外， STA也可以和 CAP正常进行数据交互， CAP可以通过 CCH 指示分配的上下行资源， 然后 STA可以利用分配的上行资源向 CAP发送数 据， 并在分配的下行资源接收 CAP发送的下行数据。
上述实施例一至实施例三中， STA也可以不主动请求休眠， 而等待 CAP 主动发送的休眠指示后、 再进入休眠模式。 上述实施例四中， STA也可以主 动向 CAP请求休眠。
除以上实施例具体的情况外， 还可能包括图 9所示由 CAP触发休眠、 由 CAP触发激活的情况， 具体的流程这里不再赘述。
以上实施例中， 由 CAP触发休眠的时候， CAP在发送休眠指示后的设 定帧数内， 如果没有收到 STA返回的 ACK或 GroupAck, CAP可以重新发 送休眠指示、 直至达到设定次数， CAP认为本次触发休眠失败， 可以开始新 的触发休眠的流程。如果针对同一 STA连续重新发送休眠指示的次数超过设 定次数， 则 CAP认为 STA异常， 会将该 STA从活动列表中删除。
图 10 为本发明节电的终端侧装置， 其特征在于， 该装置包括： 休眠执 行单元 61、 激活执行单元 62和休眠指示接收单元 63。
休眠指示接收单元 63， 用于接收网络侧发送的休眠指示。
休眠执行单元 61， 用于在休眠指示接收单元 63接收到网络侧发送的休 眠指示时， 关闭 STA中的一个或多个硬件单元、 使 STA进入休眠模式。
激活执行单元 62， 用于在 STA接收到网络侧发送的业务指示、 或 STA 要向网络侧的 CAP发送数据时，开启 STA中已关闭的所有硬件单元、使 STA 结束休眠模式。
可见， 本发明中节电的终端侧装置， 可以才艮据网络侧的休眠指示关闭 STA中的一个或多个硬件单元、 使 STA进入休眠模式， 同时， 在 STA接收 到网络侧发送的业务指示、 或 STA要向网络侧的 CAP发送数据时， 可以及 时结束休眠模式， 由此在一定周期内使 STA处于最小的功率状态， 从而节省 功率和空中接口资源。
本发明的终端侧装置可以位于 STA 内部， 也可以是位于终端侧、 并与 STA具有连接关系的独立部分。
下面给出本发明终端侧装置的可选实施例。
实施例五
图 11为本发明实施例五节电的终端侧装置的结构示意图， 该装置包括： 休眠执行单元 71、 激活执行单元 72、 休眠请求单元 73和休眠指示接收单元 74。
休眠指示接收单元 74， 用于接收网络侧发送的休眠指示， 具体包括： 休 眠指示接收子单元 741和休眠指示解析子单元 742。
休眠指示接收子单元 741， 用于接收网络侧发送的休眠指示。
休眠指示解析子单元 742， 用于解析所述休眠指示中携带的授权的休眠 参数。
激活执行单元 72， 用于在 STA接收到网络侧发送的业务指示、 或 STA 要向网络侧的 CAP发送数据时，开启 STA中已关闭的所有硬件单元、使 STA 结束休眠模式。
休眠请求单元 73， 用于向网络侧发送休眠请求， 具体包括： 休眠参数确 定子单元 731和休眠请求发送子单元 732。
休眠参数确定子单元 731， 用于确定要上 4艮的休眠参数。
休眠请求发送子单元 732， 用于向网络侧发送携带上报的休眠参数的休 眠请求。
无论是上报的休眠参数、 还是授权的休眠参数， 均是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变 化信息。
基于上述休眠参数包含的具体内容， 休眠执行单元 71 包括： 休眠执行 子单元 711和侦听子单元 712。
休眠执行子单元 711， 用于在每个所述休眠窗口中关闭 STA中的一个或 多个硬件单元。
侦听子单元 712，用于在每个侦听窗口中开启 STA中的侦听单元、使 STA 侦听网络侧发送的业务指示。
可选的， 图 11 所述的装置中还可以包括： 确认单元， 用于在所述休眠 指示接收单元 74正确接收休眠指示后， 向网络侧发送 ACK或 GroupAck。
图 12 为本发明节电的网络侧装置的结构示意图， 该装置包括： 休眠指 示单元 81和激活指示单元 82。
休眠指示单元 81， 用于向终端侧发送休眠指示。
激活指示单元 82， 用于向终端侧发送业务指示。
可见， 本发明中节点的网络侧装置， 可以通过向终端侧发送休眠指示、 使得终端侧的 STA进入休眠模式， 同时， 可以向终端侧发送业务指示、 使得 终端侧的 STA结束休眠模式， 由此在一定周期内使 STA处于最小的功率状 态， 从而节省功率和空中接口资源。
下面给出本发明网络侧装置的可选实施例。 本发明中的网络侧装置可以位于 CAP 内部， 也可以是位于网络侧、 且 与 CAP存在连接关系的独立部分。
实施例六
图 13 为本发明实施例六中节电的网络侧装置的结构示意图， 该装置包 括： 休眠指示单元 91、 激活指示单元 92和休眠请求接收单元 93。
休眠请求接收单元 93， 用于接收终端侧发送的休眠请求， 具体包括： 休 眠请求接收子单元 931和休眠请求解析子单元 932。
休眠请求接收子单元 931 , 用于接收终端侧发送的休眠请求。
休眠请求解析子单元 932， 用于解析所述休眠请求中携带的上报的休眠 参数。
休眠指示单元 91 包括： 休眠参数确定子单元 911 和休眠指示发送子单 元 912。
休眠参数确定子单元 911，用于根据休眠请求中携带的上报的休眠参数， 确定授权的休眠参数。 这里确定授权的休眠参数的具体方法， 与前文本发明 方法中已介绍的相同。
休眠指示发送子单元 912， 用于向终端侧发送携带授权的休眠参数的休 眠指示。
无论是上报的休眠参数、 还是授权的休眠参数， 均是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变 化信息。
基于休眠参数的具体内容， 激活指示单元 92， 用于在 CAP有业务数据 向 STA 传输时， 向终端侧发送业务指示， 具体包括： 緩存状态判定子单元 921和业务指示发送子单元 922。
緩存状态判定子单元 921， 用于判定 CAP緩存发送给 STA的数据是否 到达预定门限。
业务指示发送子单元 922，用于在緩存状态判定子单元 921判定 CAP緩 存发送给 STA的数据达到预定门限时，在最近的侦听窗口向网络侧发送业务 指示。 业务指示发送子单元 922从休眠参数确定子单元 911获取授权的休眠 参数， 从而获知侦听窗口等具体信息。
可选的， 图 13 所示的装置中还可以包括： 确认接收单元， 用于接收终 端侧正确接收所述休眠指示后发送的 ACK或 GroupAck。
实施例七
图 14为本发明实施例七节电的网络侧装置的结构示意图， 该装置包括： 休眠指示单元 101和激活指示单元 102。
休眠指示单元 101 包括：解析子单元 1011和休眠指示发送子单元 1012。 解析子单元 1011， 用于解析 STA的当前业务情况、 系统容量和系统资 源中的一项或几项。
休眠指示发送子单元 1012，用于根据解析子单元 1011得出的解析结果， 确定授权的休眠参数， 并向终端侧发送携带授权的休眠参数的休眠指示。 这 里确定授权的休眠参数的方法， 与前文本发明方法中已介绍的相同。
上述授权的休眠参数是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及 指示后续休眠窗口变化规律的后续休眠窗口变化信息。
基于休眠参数的具体内容， 激活指示单元 102， 用于在 CAP有业务数据 向 STA传输时， 向终端侧发送业务指示，具体包括緩存状态判定子单元 1021 和业务指示发送子单元 1022。
緩存状态判定子单元 1021， 用于判定 CAP緩存发送给 STA的数据是否 达到预设门限。
业务指示发送子单元 1022， 用于在所述緩存状态判定子单元 1021判定 CAP緩存发送给 STA的数据到达预定门限时， 在最近的一个侦听窗口向终 端侧发送业务指示。 业务指示发送子单元 1022从休眠指示发送单元 1012获 取授权的休眠参数， 从而获知侦听窗口等具体信息。
可选的， 图 14 所示的装置中还可以包括： 确认接收单元， 用于接收终 端侧正确接收所述休眠指示后发送的 ACK或 GroupAck。 在此基础上， 休眠 指示发送子单元 1012 在发送休眠指示后的设定帧数内监控所述确认接收单 元， 如果所述确认接收单元没有收到终端侧发送的 ACK或 GroupAck, 则可 以重新发送休眠指示、 直至达到设定次数， 认为本次休眠触发过程失败， 可 以开始新的休眠触发过程。 如果休眠指示发送子单元 1012针对同一 STA连 续发送休眠指示的次数超过设定次数， 则认为该 STA出现异常， 可以触发活 动列表管理的装置将 STA从活动列表中删除。
上述实施例六和实施例七中的装置也可以集成在一个装置中， 其中休眠 指示单元中将包括实施例六和实施例七中所描述的全部组成部分。
除了以上所描述的本发明节电的方法及装置外， 本发明还提供三种用于 节电的方法。
本发明提供的第一种用于节电的方法， 包括： 生成休眠请求； 发送所述 休眠请求， 使接收休眠请求的接收端发送指示进入休眠模式的休眠指示。
进一步， 所述休眠请求中携带上报的休眠参数。
进一步， 所述休眠请求封装在休眠请求帧中。 作为一种举例， 这里的休 眠请求帧的帧体结构可以如图 3所示。
本发明提供的第二种用于节电的方法， 包括： 生成休眠指示； 发送所述 休眠指示， 使接收所述休眠指示的接收端关闭一个或多个硬件单元， 进入休 眠模式。
进一步， 所述休眠指示中携带授权的休眠参数。
进一步， 所述休眠指示为休眠响应帧。 作为一种举例， 这里的休眠响应 帧的帧体结构可以如图 4所示。
以上所述的两种用于节电的方法中， 所述休眠参数是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的后续休眠窗口变 化信息。
本发明提供的第三种用于节电的方法， 包括： 生成业务指示； 发送所述 业务指示， 使接收所述业务指示的接收端开启已关闭的所有硬件单元， 结束 休眠模式。
进一步， 所述业务指示封装在下行业务指示帧中。 作为一种举例， 这里 的下行业务指示帧的帧体结构可以如图 5所示。
应该明白， 公开的过程中的步骤的特定顺序或层次是示例性方法的实 例。 基于设计偏好， 应该理解， 过程中的步骤的特定顺序或层次可以在不脱 离本公开的保护范围的情况下得到重新安排。 所附的方法权利要求以示例性 的顺序给出了各种步骤的要素， 并且不是要限于所述的特定顺序或层次。
在上述的评细描述中， 各种特征一起组合在单个的实施方案中， 以筒化 本公开。 不应该将这种公开方法解释为反映了这样的意图， 即， 所要求保护 的主题的实施方案需要比清楚地在每个权利要求中所陈述的特征更多的特 征。 相反， 如所附的权利要求书所反映的那样， 本发明处于比所公开的单个 实施方案的全部特征少的状态。 因此， 所附的权利要求书特此清楚地被并入 详细描述中， 其中每项权利要求独自作为本发明单独的优选实施方案。 上文的描述包括一个或多个实施例的举例。 当然， 为了描述上述实施例 而描述部件或方法的所有可能的结合是不可能的， 但是本领域普通技术人员 应该认识到， 各个实施例可以做进一步的组合和排列。 因此， 本文中描述的 实施例旨在涵盖落入所附权利要求书的保护范围内的所有这样的改变、 修改 和变型。 此外， 就说明书或权利要求书中使用的术语 "包含"， 该词的涵盖方 式类似于术语 "包括"， 就如同 "包括，" 在权利要求中用作 #†接词所解释的 那样。 此外， 使用在权利要求书的说明书中的任何一个术语 "或者" 是要表 示 "非排它性的或者"。

Claims

权 利 要 求 书
1.一种节电方法， 其特征在于， 该方法包括：
接收网络侧发送的休眠指示， 关闭站点 STA 内部的一个或多个硬件单 元、 使 STA进入休眠模式；
在 STA接收到网络侧发送的业务指示或 STA有数据要向网络侧的中心 接入点 CAP发送时， 开启已关闭的所有硬件单元、 使 STA结束休眠模式。
2. 如权利要求 1所述的方法， 其特征在于， 还包括： 向网络侧发送休眠 请求。
3. 如权利要求 2所述的方法， 其特征在于， 所述休眠请求中携带上报的 休眠参数。
4. 如权利要求 3所述的方法， 其特征在于， 所述休眠指示中携带根据所 述上报的休眠参数确定的授权的休眠参数。
5. 如权利要求 1所述的方法， 其特征在于， 所述休眠指示由网络侧根据 STA的当前业务情况、 系统容量和系统资源中的一项或几项确定、 并携带授 权的休眠参数。
6. 如权利要求 3至 5任一项所述的方法，其特征在于，所述休眠参数是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化规律的 后续休眠窗口变化信息；
所述侦听窗口与所述休眠窗口间隔设置。
7. 如权利要求 6所述的方法， 其特征在于， 所述休眠开始时间指示所述 起始休眠窗口的开始时刻， 用帧号表示。
8. 如权利要求 6所述的方法， 其特征在于， 所述休眠模式包括： 在每个 所述休眠窗口中关闭所述一个或多个硬件单元， 在每个所述侦听窗口中开启 侦听单元、 使 STA侦听所述业务指示。
9. 如权利要求 6所述的方法， 其特征在于， 所述业务指示， 由网络侧在 CAP緩存发送给 STA的数据到达预定门限后的最近的侦听窗口中发送。
10. 如权利要求 1所述的方法， 其特征在于， 还包括： 在正确接收所述 休眠指示后， 向网络侧发送确认。
11. 一种节电的终端侧装置， 其特征在于， 该装置包括：
休眠指示接收单元， 用于接收网络侧发送的休眠指示；
休眠执行单元， 用于在所述休眠指示接收单元接收到所述休眠指示时， 关闭 STA中的一个或多个硬件单元、 使 STA进入休眠模式；
激活执行单元， 用于在 STA接收到网络侧发送的业务指示、 或 STA要 向网络侧的 CAP发送数据时， 开启 STA中已关闭的所有硬件单元、 使 STA 结束休眠模式。
12. 如权利要求 11所述的装置， 其特征在于， 该装置中还包括： 休眠请求单元， 用于向网络侧发送休眠请求。
13. 如权利要求 12所述的装置， 其特征在于， 所述休眠请求单元包括： 休眠参数确定子单元， 用于确定要上报的休眠参数；
休眠请求发送子单元， 用于向网络侧发送携带上报的休眠参数的休眠请 求。
14. 如权利要求 13所述的装置， 其特征在于， 所述休眠指示接收单元包 括 ·· 休眠指示接收子单元， 用于接收网络侧发送的休眠指示； 休眠指示解析子单元， 用于解析所述休眠指示中携带的授权的休眠参 数。
15. 如权利要求 11所述的装置， 其特征在于， 所述休眠指示接收单元包 括 ··
休眠指示接收子单元， 用于接收网络侧发送的休眠指示；
休眠指示解析子单元， 用于解析所述休眠指示中携带的授权的休眠参 数。
16. 如权利要求 13至 15任一项所述的装置， 其特征在于， 所述休眠参 数是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示后续休眠窗口变化 规律的后续休眠窗口变化信息；
所述侦听窗口与所述休眠窗口间隔设置。
17. 如权利要求 16所述的装置， 其特征在于， 所述休眠开始时间指示所 述起始休眠窗口的开始时刻， 用帧号表示。
18. 如权利要求 16所述的装置， 其特征在于， 所述休眠执行单元包括： 休眠执行子单元，用于在每个所述休眠窗口中关闭 STA中的一个或多个 硬件单元；
侦听子单元， 用于在每个所述侦听窗口中开启 STA 中的侦听单元、 使 STA侦听所述业务指示。
19. 如权利要求 11所述的装置，其特征在于，该装置还包括： 确认单元， 用于在所述休眠指示接收单元正确接收所述休眠指示后，向网络侧发送确认。
20. 一种节电的网络侧装置， 其特征在于， 该装置包括：
休眠指示单元， 用于向终端侧发送休眠指示；
激活指示单元， 用于向终端侧发送业务指示。
21. 如权利要求 20所述的装置， 其特征在于， 该装置还包括： 休眠请求接收单元， 用于接收终端侧发送的休眠请求。
22. 如权利要求 21所述的装置， 其特征在于， 所述休眠请求接收单元包 括 ··
休眠请求接收子单元， 用于接收终端侧发送的休眠请求；
休眠参数解析子单元， 用于解析所述休眠请求中携带的上报的休眠参 数。
23. 如权利要求 22所述的装置， 其特征在于， 所述休眠指示单元包括： 休眠参数确定子单元， 用于根据所述上报的休眠参数， 确定授权的休眠 参数；
休眠指示发送子单元， 用于向终端侧发送携带授权的休眠参数的休眠指 示。
24. 如权利要求 20所述的装置， 其特征在于， 所述休眠指示单元包括： 解析子单元， 用于解析 STA的当前业务情况、 系统容量和系统资源中的 一项或几项；
休眠指示发送子单元， 用于根据解析子单元得出的解析结果， 向终端侧 发送携带授权的休眠参数的休眠指示。
25. 如权利要求 22至 24任一项所述的装置， 其特征在于， 所述休眠参 数是： 休眠开始时间、 起始休眠窗口、 侦听窗口、 及指示休眠窗口变化规律 的后续休眠窗口变化信息；
所述侦听窗口与所述休眠窗口间隔设置。
26. 如权利要求 25所述的装置， 其特征在于， 所述休眠开始时间指示所 述起始休眠窗口的开始时刻， 用帧号表示。
27. 如权利要求 25所述的装置， 其特征在于， 所述激活指示单元包括： 緩存状态判定子单元， 用于判定 CAP緩存发送给 STA的数据是否达到 预定门限；
业务指示发送子单元， 用于在所述緩存状态判定子单元判定 CAP 緩存 发送给 STA的数据达到预定门限时，在最近的侦听窗口向终端侧发送所述业 务指示。
28. 如权利要求 20所述的装置， 其特征在于， 该装置还包括： 确认接收 单元， 用于接收终端侧正确接收所述休眠指示后发送的确认。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014183550A (ja) * 2013-03-21 2014-09-29 Fujitsu Ltd 無線端末装置、通信制御装置、及び無線通信方法
WO2015148033A1 (en) * 2014-03-25 2015-10-01 Intel IP Corporation Apparatus, system and method of wireless communication during a power save state
US10212623B2 (en) 2016-12-28 2019-02-19 Intel IP Corporation Apparatus, system and method of packet coalescing

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103581450B (zh) * 2012-07-25 2018-03-23 中兴通讯股份有限公司 节能方法及装置
CN104066159B (zh) * 2013-03-20 2018-09-11 北京信威通信技术股份有限公司 一种移动终端睡眠唤醒的方法
US20150124678A1 (en) * 2013-11-07 2015-05-07 Qualcomm Incorporated System and method for access point power management signalling in a wireless network
US10034244B2 (en) 2014-06-19 2018-07-24 Lg Electronics Inc. Method and apparatus for transmitting and receiving periodic data on basis of power save mode in wireless LAN
CN105515789B (zh) * 2015-11-24 2019-01-11 江苏科技大学 一种待权间隔的省电方法
CN108307381A (zh) * 2016-09-23 2018-07-20 中国电信股份有限公司 物联网终端参数配置方法、系统和移动性管理实体
CN107872774A (zh) * 2016-09-23 2018-04-03 中国电信股份有限公司 物联网终端参数配置方法、系统和移动性管理实体
US10999795B2 (en) * 2016-10-06 2021-05-04 Qualcomm Incorporated Independent wakeups from deep sleep for broadcast and unicast service
KR20190001202U (ko) 2017-11-12 2019-05-22 주식회사 명예의전당 소파로 사용 가능한 동물인형
US10602444B2 (en) * 2017-12-22 2020-03-24 Cypress Semiconductor Corporation Reducing power consumption in computing devices with wireless network interfaces
KR20190129219A (ko) * 2018-05-10 2019-11-20 주식회사 다이얼로그 세미컨덕터 코리아 무선랜 ap에 따른 전력 절감 최적화 방법 및 장치
CN112867106B (zh) * 2019-11-28 2023-05-12 中国电信股份有限公司 通信方法、系统以及无线接入点

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1592266A (zh) * 2003-09-03 2005-03-09 三星电子株式会社 无线局域网中的节能
CN101123777A (zh) * 2006-08-09 2008-02-13 Lg电子株式会社 通信装置及其控制方法
US7881322B1 (en) * 2002-12-16 2011-02-01 Avaya Inc. Power-saving mechanism for periodic traffic streams in wireless local-area networks
CN102076067A (zh) * 2010-12-23 2011-05-25 北京星网锐捷网络技术有限公司 无线站点的休眠方法、装置和设备及通信系统

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040092830A (ko) * 2003-04-29 2004-11-04 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 슬립 구간 설정 방법
KR100665457B1 (ko) * 2003-04-30 2007-01-04 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 슬립 모드 및 어웨이크 모드에서의 상태 천이 제어 시스템 및 방법
KR100657507B1 (ko) * 2003-12-16 2006-12-13 한국전자통신연구원 무선 휴대 인터넷 시스템의 전력절약모드 제어 방법 및장치
KR20060047692A (ko) * 2004-05-07 2006-05-18 엘지전자 주식회사 광대역 무선접속 시스템에 적용되는 수면모드 수행 및 제어방법
US7778640B2 (en) * 2004-06-25 2010-08-17 Lg Electronics Inc. Method of communicating data in a wireless mobile communication system
KR100885158B1 (ko) * 2004-08-09 2009-02-23 엘지전자 주식회사 광대역 무선접속 시스템에서 수면모드 단말의 주기적인레인징방법
CA2580401C (en) * 2004-09-30 2015-06-30 Lg Electronics Inc. A method of supporting operation of sleep mode in a wideband radio access system
IL164576A (en) * 2004-10-14 2006-10-05 Alvarion Ltd Method and apparatus for power saving in wireless systems
KR100684318B1 (ko) * 2004-11-30 2007-02-16 한국전자통신연구원 휴대단말의 슬립모드 구동방법 및 휴대단말의 슬립모드를위한 기지국의 통신방법
KR101080970B1 (ko) * 2004-12-27 2011-11-09 엘지전자 주식회사 광대역 무선접속 시스템에 적용되는 디코드 정보 전송 방법
US7500119B2 (en) * 2005-12-21 2009-03-03 Intel Corporation Power saving techniques for use in communication systems, networks, and devices
CA2651868C (en) * 2006-05-13 2014-11-25 Lg Electronics Inc. Method of performing procedures for initial network entry and handover in a broadband wireless access system
US20080009328A1 (en) * 2006-07-05 2008-01-10 Motorola, Inc. Sleep mode optimization for reducing battery life in broadband wireless communication devices
JP2010507851A (ja) * 2006-10-26 2010-03-11 シーノーズ ネットワーク中に幾つかのノードを備える改良型のコンピュータベースシステム
US7881252B2 (en) * 2006-12-27 2011-02-01 Altair Semiconductor Ltd. Wireless receiver with intermittent shut-off of RF circuits
KR100925712B1 (ko) * 2007-01-22 2009-11-10 삼성전자주식회사 광대역 무선통신 시스템에서 슬립 모드 진입을 제어하기위한 장치 및 방법
KR101405936B1 (ko) * 2007-02-02 2014-06-17 엘지전자 주식회사 광대역 무선 접속 시스템에서 수면 모드와 관련된 메시지를송수신하는 방법
WO2008094017A2 (en) * 2007-02-02 2008-08-07 Lg Electronics Inc. Method of transmitting and receiving a message associated with power saving mode in a wireles communication system
JP4309921B2 (ja) * 2007-02-07 2009-08-05 株式会社東芝 通信装置、通信方法、通信システム及びプログラム
KR101340177B1 (ko) * 2007-10-19 2014-01-15 삼성전자주식회사 통신 시스템에서 슬립모드 동작 제어 방법 및 장치
US8095106B2 (en) * 2008-02-14 2012-01-10 Industrial Technology Research Institute System and method for power savings in a wireless communication network
KR101094431B1 (ko) * 2008-02-28 2011-12-15 한국전자통신연구원 이동 통신 시스템에서 전력 절약 동작 관리 방법
JP5092945B2 (ja) * 2008-07-03 2012-12-05 富士通株式会社 基地局及び移動端末並びに方法
KR20100006110A (ko) * 2008-07-08 2010-01-18 한국전자통신연구원 이동 통신망에서의 전력 소모 방지 방법
TWI327039B (en) * 2008-07-11 2010-07-01 Ind Tech Res Inst A method for forming a device power savings class, a mobile station for wirelee communication and wireless communication
US8412287B2 (en) * 2008-08-15 2013-04-02 Nokia Siemens Networks Oy Power saving support for wireless networks
KR20100089006A (ko) * 2009-02-02 2010-08-11 엘지전자 주식회사 전력소모방지모드에서 신뢰성 있는 메시지 전송방법
KR101088180B1 (ko) * 2009-02-16 2011-12-02 한국과학기술원 ＩＥＥＥ 802.16ｅ 시스템에서의 스케줄된 절전 방법
US20100208660A1 (en) * 2009-02-19 2010-08-19 Samsung Electronics Co., Ltd. Method for distributed drx operation for ease of scheduling and effective power saving
KR101628358B1 (ko) * 2009-03-09 2016-06-08 엘지이노텍 주식회사 데이터 송수신장치 및 그 제어방법
KR101564107B1 (ko) * 2009-03-11 2015-10-29 삼성전자주식회사 통신 시스템에서 슬립모드 동작 제어 방법 및 장치
US8607279B2 (en) * 2010-03-23 2013-12-10 Qualcomm Incorporated Induced sleep intervals for devices receiving bursty non-real time broadcast flows
KR101796532B1 (ko) * 2011-06-22 2017-11-10 삼성전자주식회사 수면 모드 제어를 통한 에너지 절감 시스템 및 시스템의 동작 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7881322B1 (en) * 2002-12-16 2011-02-01 Avaya Inc. Power-saving mechanism for periodic traffic streams in wireless local-area networks
CN1592266A (zh) * 2003-09-03 2005-03-09 三星电子株式会社 无线局域网中的节能
CN101123777A (zh) * 2006-08-09 2008-02-13 Lg电子株式会社 通信装置及其控制方法
CN102076067A (zh) * 2010-12-23 2011-05-25 北京星网锐捷网络技术有限公司 无线站点的休眠方法、装置和设备及通信系统

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014183550A (ja) * 2013-03-21 2014-09-29 Fujitsu Ltd 無線端末装置、通信制御装置、及び無線通信方法
WO2015148033A1 (en) * 2014-03-25 2015-10-01 Intel IP Corporation Apparatus, system and method of wireless communication during a power save state
US9258779B2 (en) 2014-03-25 2016-02-09 Intel IP Corporation Apparatus, system and method of wireless communication during a power save state
RU2632472C1 (ru) * 2014-03-25 2017-10-05 ИНТЕЛ АйПи КОРПОРЕЙШН Устройство, система и способ беспроводной связи в условиях энергосберегающего состояния
US10212623B2 (en) 2016-12-28 2019-02-19 Intel IP Corporation Apparatus, system and method of packet coalescing

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