WO2011071220A1 - 무선 통신 시스템에서 파워 세이빙 방법 - Google Patents
무선 통신 시스템에서 파워 세이빙 방법 Download PDFInfo
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- WO2011071220A1 WO2011071220A1 PCT/KR2010/004071 KR2010004071W WO2011071220A1 WO 2011071220 A1 WO2011071220 A1 WO 2011071220A1 KR 2010004071 W KR2010004071 W KR 2010004071W WO 2011071220 A1 WO2011071220 A1 WO 2011071220A1
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- terminal
- base station
- information
- configuration information
- power saving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] 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 leader and terminal is follower
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
- H04W68/025—Indirect paging
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- 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 present invention relates to a wireless communication system, and more particularly, to a power saving method in a wireless communication system.
- a modem of a terminal of a wireless communication system is always ready to receive a packet since it does not know when a signal will be transmitted. Therefore, according to the prior art, unnecessary power consumption occurs. That is, since the terminal does not know when to receive the packet, the terminal should always operate at full power from the RF to the baseband processing (baseband processing) stage. Then, the terminal determines whether a signal is received or not, and if there is a signal, uses the output of the baseband processing stage and discards the output if there is no signal.
- the terminal While the terminal is performing a voice call, the terminal should monitor the traffic at all times in order to observe the indication of other data traffic received or retransmission related forwarding, or a forwarding on resource rebalancing, and to monitor the traffic. Most of the power is consumed without meaning. Therefore, there is a disadvantage that the terminal consumes a lot of power unnecessarily compared to the actual traffic during the voice call time.
- An object of the present invention is to provide a power saving method that can reduce the power consumption of the terminal.
- the terminal receives configuration information about power saving from a base station and is received according to the configuration information about the power saving Operating in a power-down mode with no processing, wherein the configuration information includes at least one of information about when the base station does not transmit a packet to the terminal and information about when the base station transmits a packet to the terminal. do.
- the base station includes information on when the base station does not transmit a packet to the terminal and the base station to the terminal
- the configuration information regarding power saving including at least one of information on a time point of transmitting a packet is transmitted to the terminal, and the packet is transmitted to the terminal according to the configuration information.
- a terminal operates in a power-down mode that does not perform receiving processing according to a receiving module for receiving configuration information about power saving from a base station and the configuration information about the power saving. And at least one of information regarding a time point when the base station does not transmit a packet to the terminal and information regarding a time point when the base station transmits a packet to the terminal.
- a base station includes at least one of information on the time point when the base station does not transmit a packet to the terminal and information on the time point when the base station transmits the packet to the terminal. And a processor for generating configuration information regarding power saving and a transmission module for transmitting the configuration information to the terminal and transmitting a packet according to the configuration information.
- the configuration information may be information about HARQ ID that the terminal does not need to receive.
- the configuration information may be information about a subframe that the terminal should receive for a certain period.
- the terminal operates in a power down mode, thereby reducing power consumption of the terminal.
- FIG. 1 is a diagram illustrating an example of a frame structure of a wireless communication system.
- 2 is a diagram illustrating a resource structure of one downlink slot.
- FIG. 3 is a view showing a power saving method according to an embodiment of the present invention.
- FIG. 4 is a diagram illustrating a configuration of a mobile terminal and a base station in which embodiments of the present invention can be implemented.
- a terminal collectively refers to a mobile or fixed user terminal device such as a user equipment (UE), a mobile station (MS), and the like.
- the base station collectively refers to any node of the network side that communicates with the terminal, such as Node B, eNode B, Base Station.
- FIG. 1 is a diagram illustrating an example of a frame structure of a wireless communication system.
- one frame includes 10 subframes, and one subframe includes two slots.
- the time taken to transmit one subframe is called a transmission time interval (hereinafter, referred to as a "TTI").
- TTI transmission time interval
- one subframe may be 1 ms and one slot may be 0.5 ms.
- One slot includes a plurality of orthoghnal frequency division multiplexing (OFDM) symbols.
- An OFDM symbol may be called an SC-FDMA symbol or symbol period.
- One slot includes seven or six OFDM symbols depending on the length of a cyclic prefix (hereinafter referred to as "CP").
- Long term evolution (“LTE”) systems include a normal CP and an extended CP. In case of using a normal CP, one slot includes 7 OFDM symbols, and in case of using an extended CP, one slot includes 6 OFDM symbols. Extended CP is used when the delay spread is large.
- FIG. 2 is a diagram illustrating a resource structure of one downlink slot. 2 illustrates a case where one slot includes seven OFDM symbols.
- a resource element (RE) is a resource region composed of one OFDM symbol and one subcarrier
- a resource block (RB) is a resource region composed of a plurality of OFDM symbols and a plurality of subcarriers.
- the resource block may include 7 OFDM symbols in the time domain and 12 subcarriers in the frequency domain.
- the number of resource blocks included in one slot may be determined according to the downlink bandwidth.
- FIG. 3 is a view showing a power saving method according to an embodiment of the present invention.
- the terminal receives configuration information regarding power saving from the base station (S310).
- the terminal may stop the operation of the modem at that time. In this case, the terminal may stop the operation from the RF stage to the baseband processing stage. Therefore, the configuration information about the power saving includes information on the time point when the base station does not transmit a control packet or data packet to the terminal.
- the terminal can know when the base station transmits the packet to the terminal and when the packet is not transmitted through the configuration information on the power saving.In the time of transmitting the packet, the terminal operates in a power-up mode and does not transmit the packet. If not, it operates in power-down mode.
- the embodiment of the present invention proposes five forms of configuration information related to power saving.
- the first form is a method of defining a HARQ ID that the terminal does not need to receive.
- the base station determines a HARQ ID that the terminal does not need to define a reception pattern of the terminal. Then, the terminal may stop the reception operation for the HARQ ID does not need to receive.
- HARQ hybrid automatic retransmit reQuest
- the terminal may perform a reception operation only in a subframe corresponding to the HARQ ID monitoring set.
- the base station may determine the HARQ ID monitoring set to be allocated to the terminal in consideration of the load (load), the traffic amount and the channel state of the terminal.
- all data and control information from the base station may be considered to be transmitted only in the corresponding subframes.
- the UE may operate in a power-up form at this point of time, which may be defined implicitly or in a subframe.
- the second form is a method of defining a reception pattern of a terminal in subframe units. That is, it defines a subframe that the terminal should receive for a certain period. Then, the terminal may stop the processing in subframes other than the subframe to be received.
- the designated subframe may not be explicitly designated as a subframe including a control channel that the UE must observe.
- information such as power control information may be delivered regardless of data transmission in a portion such as a subframe through which system information is transmitted or a common control channel. Therefore, in performing reception setup for a subframe, the UE may have power saving information for different subframes according to the type of information (eg, data, allocation information, power control information, system information, etc.) actually received. have.
- the third form is dynamic power-off.
- the dynamic power-off scheme when a base station transmits a power-off signal through a L1 / L2 control signal for a subframe or time period in which the terminal should operate, the terminal has a right to stop receiving processing during the corresponding time period. That's the way.
- the power off signal may be transmitted through a UE-specific space or a common search space.
- the power off information delivered to the terminal may be delivered to the terminal in unicast form or may be delivered together with information of other terminals in broadcast form.
- the fourth form is-discontinuous reception (hereinafter referred to as "DRX").
- DRX discontinuous reception
- the UE when a packet is not received for a predetermined time, the UE enters the DRX mode.
- the UE reduces power consumption and periodically wakes up to monitor the signal of the base station.
- the short DRX scheme is to set a very short time for the UE to enter the DRX mode. That is, if a packet is not received from the base station for a very short time, the terminal enters the DRX mode. Then, the terminal can stop the reception processing very dynamically, thereby reducing the power consumption.
- the fifth form is a method in which a base station notifies a terminal of a transmission unit that does not transmit a packet to a terminal among multiple transmission units allocated to the terminal.
- a base station allocates a plurality of transmission units to a user equipment, such as long TTI or multi-TTI scheduling.
- some of the plurality of transmission units allocated to the UE may transmit a packet, and some of the transmission units may not transmit the packet.
- the terminal may stop the reception processing during the transmission unit that does not transmit the packet.
- This may be interpreted as a change in the signal processing unit that the terminal communicates with the base station, which may be set differently for each terminal.
- a specific terminal can search for control information from a base station in units of 1 ms
- another terminal can search in units of 2 ms
- another terminal can search in units of 4 ms.
- the control information when the terminals correspond to the corresponding unit, the control information also receives information about the interval of the corresponding unit.
- the control information received for this section may be configured such that the base station arbitrarily transmits the data or the control information to some or all of the section.
- the terminal performs power saving according to the configuration information about the received power saving (S320).
- the terminal operates in the power down mode according to the information on the time point at which the base station included in the configuration information regarding power saving does not transmit a packet to the terminal. That is, the base station operates in a power down mode in which the base station does not perform the reception processing during the time when the base station does not transmit the packet to the terminal.
- the terminal does not perform channel measurement on a section in which there is no received packet while operating in the power down mode. Therefore, the base station interprets the channel measurement report in consideration of the channel measurement gap generated while the terminal is operating in the power down mode.
- the channel measurement may be performed by detecting only a specific signal for channel measurement while the terminal operates in the power down mode.
- the terminal operates in the power down mode and then converts the power state of the receiving module into a normal state to enter the power up mode.
- the power up mode is a mode for performing receive processing.
- the terminal When the terminal is operating in the downlink power down mode, the terminal may perform uplink transmission or stop.
- a signal that can be interrupted transmission includes a scheduling request, a channel measurement report, sounding, etc., and this information is transmitted through a channel for transmitting such information when the power-up mode is entered.
- the data may be transmitted or may be transmitted by being embedded in data.
- the base station transmits a packet to the terminal according to the configuration information on the power saving. That is, the packet is not transmitted to the terminal when the terminal is set to operate in the power down mode, but the packet is transmitted to the terminal at other times.
- the base station performs synchronization between downlink traffic and uplink traffic. That is, in order to enable the power down mode in the downlink subframe, the information on the uplink traffic must also be a structure that can be received when the terminal is in the power up mode. For example, the base station transmits an acknowledgment (non-acknowledgement / ACK / NACK) for the uplink traffic when the terminal can receive the downlink traffic. In order to assist this operation, it is preferable that both uplink and downlink operate in the same manner as synchronous HARQ.
- the present invention can also be applied to a system operating in a time division duplex (hereinafter referred to as "TDD"), and in this case, a structure in which an acknowledgment for each of the downlink / uplink HARQ relationships is transmitted is the same. It should be designed to have Therefore, it is preferable to define the downlink / uplink HARQ relationship in the TDD subframe configuration so that the active time is the same. Otherwise, the active time is allocated to the UE or the specific subframe is maintained for the same HARQ relationship. By defining a pattern, the terminal can be configured to actively configure the power down mode.
- TDD time division duplex
- the terminal and the base station should transmit to each other information indicating whether the power saving method according to the embodiment of the present invention can be supported. That is, when the terminal approaches a specific base station, the base station should inform the terminal whether it supports the power saving method, and should inform the base station whether the terminal also supports the power saving method. Therefore, a bit indicating whether to support the power saving method should be set in the control information of the base station and the terminal.
- the base station may start a power saving operation or the terminal may start a power saving operation.
- the power saving may be defined according to the buffer state of the base station, and the related signaling may be in the form of a base station standard.
- the terminal user may define an operation mode.
- the terminal transmits a power saving request message to the base station to start the power saving operation.
- the terminal may transmit a power saving request message by defining a PRACH or a random access channel.
- the saving request message may be transmitted through a scheduling request or a similar procedure.
- the terminal has enough information to stop the transmission processing by the scheduling of the base station. Accordingly, the terminal may turn off the module related to the transmission processing in the period in which the traffic does not need to be transmitted.
- the base station may configure a PDCCH-less subframe.
- the specific subframe may be defined in a form in which the UE performs RF, ADC, and baseband processing but does not decode the PDCCH. Then, the terminal consumes power for baseband processing the received signal, but saves power for decoding the PDCCH.
- This situation designates a subframe in which the PDCCH does not exist in order to save power by the UE under the premise that most baseband processing is required in the process of calculating channel measurement information by the UE.
- Signal forms related thereto may be equally described and applied in various ways described above.
- the UE does not operate in the power down mode in the corresponding subframe, but does not need to receive the PDCCH.
- Some of the above-described information may be delivered to the terminal through higher layer signaling, such as RRC.
- RRC higher layer signaling
- the present invention can be used for the following purposes in addition to the use of such power consumption.
- the terminal may be assigned a plurality of reception patterns from the base station.
- the allocated plurality of reception patterns may be used for the same RAT or may be used for different RATs in different networks.
- the reception pattern A may be used for communication via LTE-A
- the reception pattern B may be used for communication via Wi-Fi.
- the allocated plurality of reception patterns may be used for communication with different cells and terminals in a multi-tier network.
- the terminal may communicate with the femto base station in the reception pattern B while communicating with the macro base station in the reception pattern A.
- the terminal may configure an ad hoc with an adjacent terminal in the reception pattern B while communicating with the base station in the reception pattern A.
- FIG. 4 is a diagram illustrating a configuration of a mobile station and a base station in which embodiments of the present invention described above can be implemented as another embodiment of the present invention.
- the mobile station (AMS) and the base station (ABS) are antennas 500 and 510 capable of transmitting and receiving information, data, signals, and / or messages, and a transmission module (Tx module, 540, 550) for controlling the antenna and transmitting a message. ), A reception module (Rx module, 560, 570) for receiving a message by controlling an antenna, a memory (580, 590) for storing information related to communication with a base station, and a processor for controlling a transmission module, a reception module, and a memory ( 520 and 530, respectively.
- the base station may be a femto base station or a macro base station.
- the antennas 500 and 510 transmit a signal generated by the transmission modules 540 and 550 to the outside or receive a wireless signal from the outside and transmit the signal to the receiving modules 560 and 570. If a multiple antenna (MIMO) function is supported, two or more antennas may be provided.
- MIMO multiple antenna
- Processors 520 and 530 typically control the overall operation of a mobile terminal or base station.
- the processor may perform a control function for performing the above-described embodiments of the present invention, a medium access control (MAC) frame variable control function, a handover function, an authentication and encryption function, etc. according to service characteristics and a propagation environment. Can be done.
- the processors 520 and 530 may further include an encryption module for controlling encryption of various messages and a timer module for controlling transmission and reception of various messages, respectively.
- the processor 520 of the base station generates configuration information about power saving including information about the time when the base station does not transmit a packet to the terminal. If the terminal has information that the base station will not transmit a packet to the terminal at a specific time, the terminal may stop the operation of the modem at that time. Therefore, when the base station notifies the terminal of the time when the packet is not transmitted, the terminal can save power by stopping the operation of the modem during the corresponding time.
- the configuration information about power saving includes a method of defining a HARQ ID that a terminal does not need to receive, a method of defining a reception pattern of a terminal in units of subframes, a dynamic power-off method, and a time to enter a DRX mode.
- the base station of the multiple transmission units assigned to the terminal may be configured in such a way to inform the terminal of the transmission unit does not transmit the packet to the terminal.
- the processor 530 of the terminal operates in the power down mode according to the configuration information on the power saving received from the base station. That is, the base station included in the configuration information on the power saving has a right to operate in the power down mode of the terminal during the time when the packet is not transmitted to the terminal. Accordingly, the terminal may operate in a power down mode to reduce power consumption during the time point where the base station does not transmit the packet to the terminal.
- the transmission modules 540 and 550 may perform a predetermined coding and modulation on signals and / or data that are scheduled from a processor to be transmitted to the outside, and then may be transmitted to the antennas 500 and 510.
- the transmitting module 540 of the base station transmits configuration information regarding power saving to the terminal and transmits a packet according to the configuration information regarding power saving. That is, the base station included in the configuration information regarding power saving does not transmit the packet during the time point when the base station does not transmit the packet to the terminal, and transmits the packet to the terminal at other time points.
- the transmission module 550 of the terminal transmits a power saving request message to the base station.
- the receiving modules 560 and 570 decode and demodulate the radio signals received through the antennas 500 and 510 from the outside to restore the original data to the processor 520 and 530. I can deliver it.
- the receiving module 560 of the base station receives a power saving request message from the terminal.
- the receiving module 570 of the terminal receives configuration information regarding power saving from the base station.
- the memory 580 and 590 may store a program for processing and controlling a processor, and input / output data (in the case of a mobile station, an uplink grant allocated from a base station, a system information, and a station identifier) STID), flow identifier (FID), action time (Action Time), area allocation information, frame offset information, etc.) may be temporarily stored.
- the memory may also be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg, SD or XD memory, etc.), RAM Random Access Memory (RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk.
- RAM Random Access Memory
- SRAM Static Random Access Memory
- ROM Read-Only Memory
- EEPROM Electrically Erasable Programmable Read-Only Memory
- PROM Programmable Read-Only Memory
- Magnetic Memory Magnetic It may include a storage medium of at least one type of disk, optical disk.
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Abstract
Description
Claims (16)
- 무선 통신 시스템의 단말에서 파워 세이빙 방법에 있어서,기지국으로부터 파워 세이빙에 관한 구성 정보를 수신하는 단계; 및상기 파워 세이빙에 관한 구성 정보에 따라 수신 프로세싱을 하지 않는 파워다운 모드로 동작하는 단계를 포함하고,상기 구성 정보는 상기 기지국이 상기 단말에게 패킷을 전송하지 않는 시점 에 관한 정보 및 상기 기지국이 상기 단말에게 패킷을 전송하는 시점에 관한 정보 중 적어도 하나를 포함하는 파워 세이빙 방법.
- 제1항에 있어서,상기 구성 정보는 상기 단말이 수신하지 않아도 되는 HARQ ID에 관한 정보인 것을 특징으로 하는 파워 세이빙 방법.
- 제1항에 있어서,상기 구성 정보는 일정한 주기에 대해서 단말이 수신해야 하는 서브프레임에 관한 정보인 것을 특징으로 하는 파워 세이빙 방법.
- 제1항에 있어서,상기 단말은 상기 파워다운 모드로 동작하는 동안에는 하향링크 채널 측정을 수행하지 않는 것을 특징으로 하는 파워 세이빙 방법.
- 무선 통신 시스템의 기지국에서 파워 세이빙 지원 방법에 있어서,상기 기지국이 단말에게 패킷을 전송하지 않는 시점에 관한 정보 및 상기 기지국이 상기 단말에게 패킷을 전송하는 시점에 관한 정보 중 적어도 하나를 포함하는 파워 세이빙에 관한 구성 정보를 상기 단말에게 전송하는 단계; 및상기 단말에게 상기 구성 정보에 따라 패킷을 전송하는 단계를 포함하는 파워 세이빙 지원 방법.
- 제5항에 있어서,상기 단말로부터 파워 세이빙 요청 메시지를 수신하는 단계를 더 포함하는 파워 세이빙 지원 방법.
- 제5항에 있어서,상기 구성 정보는 상기 단말이 수신하지 않아도 되는 HARQ ID에 관한 정보인 것을 특징으로 하는 파워 세이빙 지원 방법.
- 제5항에 있어서,상기 구성 정보는 일정한 주기에 대해서 단말이 수신해야 하는 서브프레임에 관한 정보인 것을 특징으로 하는 파워 세이빙 지원 방법.
- 기지국으로부터 파워 세이빙에 관한 구성 정보를 수신하는 수신 모듈; 및상기 파워 세이빙에 관한 구성 정보에 따라 수신 프로세싱을 하지 않는 파워다운 모드로 동작하는 프로세서를 포함하고,상기 구성 정보는 상기 기지국이 상기 단말에게 패킷을 전송하지 않는 시점에 관한 정보 및 상기 기지국이 상기 단말에게 패킷을 전송하는 시점에 관한 정보 중 적어도 하나를 포함하는 단말.
- 제9항에 있어서,상기 구성 정보는 상기 단말이 수신하지 않아도 되는 HARQ ID에 관한 정보인 것을 특징으로 하는 단말.
- 제9항에 있어서,상기 구성 정보는 일정한 주기에 대해서 단말이 수신해야 하는 서브프레임에 관한 정보인 것을 특징으로 하는 단말.
- 제9항에 있어서,상기 프로세서는 상기 파워다운 모드로 동작하는 동안에는 하향링크 채널 측정을 수행하지 않는 것을 특징으로 하는 단말.
- 상기 기지국이 단말에게 패킷을 전송하지 않는 시점에 관한 정보 및 상기 기지국이 상기 단말에게 패킷을 전송하는 시점에 관한 정보 중 적어도 하나를 포함하는 파워 세이빙에 관한 구성 정보를 생성하는 프로세서; 및상기 단말에게 상기 구성 정보를 전송하고, 상기 구성 정보에 따라 패킷을 전송하는 전송 모듈을 포함하는 기지국.
- 제13항에 있어서,상기 단말로부터 파워 세이빙 요청 메시지를 수신하는 수신 모듈을 더 포함하는 기지국.
- 제13항에 있어서,상기 구성 정보는 상기 단말이 수신하지 않아도 되는 HARQ ID에 관한 정보인 것을 특징으로 하는 기지국.
- 제13항에 있어서,상기 구성 정보는 일정한 주기에 대해서 단말이 수신해야 하는 서브프레임에 관한 정보인 것을 특징으로 하는 기지국.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020127005207A KR101669969B1 (ko) | 2009-12-09 | 2010-06-23 | 무선 통신 시스템에서 파워 세이빙 방법 |
| US13/499,454 US9247499B2 (en) | 2009-12-09 | 2010-06-23 | Power saving method in a wireless communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26781709P | 2009-12-09 | 2009-12-09 | |
| US61/267,817 | 2009-12-09 |
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| Publication Number | Publication Date |
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| WO2011071220A1 true WO2011071220A1 (ko) | 2011-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2010/004071 Ceased WO2011071220A1 (ko) | 2009-12-09 | 2010-06-23 | 무선 통신 시스템에서 파워 세이빙 방법 |
Country Status (3)
| Country | Link |
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| US (1) | US9247499B2 (ko) |
| KR (1) | KR101669969B1 (ko) |
| WO (1) | WO2011071220A1 (ko) |
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| CN105472716A (zh) * | 2015-12-02 | 2016-04-06 | 武汉虹信通信技术有限责任公司 | 一种lte下调整drx参数的方法和系统 |
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| CN105101371B (zh) * | 2015-08-10 | 2018-11-02 | 上海闻泰电子科技有限公司 | 一种手机省电管理方法 |
| US9907024B2 (en) | 2015-09-23 | 2018-02-27 | Htc Corporation | Wireless communication device and control method thereof |
| WO2018063201A1 (en) * | 2016-09-29 | 2018-04-05 | Intel IP Corporation | Mobile device management based on predicted base station behavior |
| KR102464908B1 (ko) * | 2018-04-16 | 2022-11-08 | 삼성전자주식회사 | 무선 통신 시스템에서 단말의 전력 소모 감소를 위한 방법 및 장치 |
| US10880881B2 (en) | 2018-05-15 | 2020-12-29 | King Fahd University Of Petroleum And Minerals | Systems and methods for collision prevention and power conservation in wireless networks |
| US11089555B2 (en) | 2019-01-07 | 2021-08-10 | Qualcomm Incorporated | Dynamic configuration of operation power parameters |
| CN112243285B (zh) * | 2019-07-16 | 2023-04-14 | 中国移动通信集团重庆有限公司 | 基站节能方法及装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20120120108A (ko) | 2012-11-01 |
| KR101669969B1 (ko) | 2016-11-09 |
| US9247499B2 (en) | 2016-01-26 |
| US20120201182A1 (en) | 2012-08-09 |
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