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96results about "In DRX networks" patented technology
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Apparatus and method for monitoring control channel in multi-carrier system
A method and an apparatus for monitoring a control channel in a multi-carrier system are provided. A terminal sets a common downlink carrier for monitoring a plurality of candidate control channels for receiving common control information among multiples carriers, and monitors the candidate control channels within a common search space of the common downlink carrier. The terminal receives common control information on a control channel which has been successfully decoded from among a plurality of candidate control channels. The invention can reduce a load due to blind decoding of the control channels and decrease battery consumption of the terminal.
Owner:LG ELECTRONICS INC
Method and apparatus for controlling discontinuous reception in mobile communication system
A method and apparatus is configured to control a discontinuous reception (DRX) in a mobile communication system. The method includes: interrupting the DRX operation when a radio resource control (RRC) connection reestablishment procedure is initiated; transmitting an RRC connection reestablishment request message from the user equipment to an evolved node B (ENB); receiving an RRC connection reestablishment message from the ENB to the user equipment; and resuming, if the received RRC connection reestablishment message contains new DRX setting information, the interrupted DRX operation according to the new DRX setting information. The DRX operation can be interrupted or resumed at a proper time point when an RRC connection is reestablished or reconfigured or a handover is performed, thereby reducing power consumption in the user equipment.
Owner:SAMSUNG ELECTRONICS CO LTD
Techniques to support multiple radio-access technologies
Techniques to permit scheduling of mixed radio access technologies. In some cases, a first radio access technology mode of a base station is scheduled during a first time region and a second radio access technology mode of a base station is scheduled during a sleep mode of the first radio access technology mode. In some cases, a first radio access technology mode of a base station is scheduled during a first time region and a second radio access technology mode of a base station is scheduled during an unused portion of the first time region. In some cases, a femto-base station is scheduled to snoop for local mobile stations during a sleep mode. Inactive regions of mobile stations are scheduled during a portion of sleep modes of the radio access technology modes.
Owner:APPLE INC
Method for communicating in a mobile network implementing discontinuous reception
The present invention relates to a method for operating a network comprising a primary station communicating with a plurality of secondary stations, the method comprising the primary station communicating with a secondary station in a discontinuous mode; the secondary station transmitting to the primary station a control message based on the current status of the secondary station; the primary station changing a parameter of the discontinuous mode based on the control message.
Owner:KONINKLJIJKE PHILIPS NV
Method of reducing power consumption in a ue when the ue is in idle mode
ActiveUS20080318643A1Reduce power consumptionPower managementIn DRX networksHysteresisTelecommunications
A method is described for determining the rate of performing neighbor cell measurements by a User Equipment (UE) in an idle mode, which is based on the RANK information of the serving cell and neighbor cells. The RANK information is available with the UE. Comparison of the RANK of the serving cell with a predefined Threshold Value along with the status of the Order of the RANKs of the neighbor cells for a predefined number of DRX cycles, are verified to conclude whether the UE should perform the neighbor cell measurement when the UE is in the idle mode. Thus the method utilizes cell RANKs to determine the network topology. The RANKs are deduced using Hysteresis, Cell Individual offsets, and other parameters by the UE to provide a more practical indication of the neighboring environment of a cell.
Owner:SAMSUNG ELECTRONICS CO LTD
Method of channel management for multiple component carrier in mobile communication system
ActiveUS20120039200A1In DRX networksFrequency-division multiplex detailsCarrier signalStructure of Management Information
Disclosed are channel management methods in a multicarrier structure in a mobile communication system. Uplink (UL) and downlink (DL) channel management methods in a carrier aggregation environment are used as the channel management methods. In DL, a base station determines a component carrier (CC) of an unstable radio channel state, stops data retransmission by the CC, and notifies a terminal of retransmission stop. In UL, the base station determines a CC of an unstable radio channel state and instructs the terminal to stop data retransmission by the CC, and the terminal stops the data retransmission and initializes a retransmission buffer. Using the channel management methods in the mobile communication system employing the multicarrier structure, an increase in the number of unnecessary retransmissions is prevented, so that unnecessary retransmission and power consumption of the terminal can be reduced and the waste of radio resources and the degradation of base station performance due to unnecessary retransmission can be prevented.
Owner:ELECTRONICS & TELECOMM RES INST
Controlling the Power in a Wireless Client Device
A system and method in a client device (22) for controlling the power within the client device (22). The client device (22) has a network access device (30, 130), a programmable timer (48), and a controller (42). The network access device (30, 130) has at least a powered state and a power-off state. The programmable timer (48) operates the network access device (30, 130) in the powered state. The controller (42) is coupled to the programmable timer (48) and is capable of providing a time period for operating the network access device (30, 130) in the powered state. The controller (42) determines the time period based on a discontinuous reception (DRX) parameter obtained from the network access device (30, 130). The network access device (130) may include a transceiver. The network access device (30) may also include a transceiver and a controller. There are also methods of operating the client device (22) to control the power within the device.
Owner:CONTINENTAL AUTOMOTIVE SYST INC
Method and apparatus for discontinuous transmission/reception operation for reducing power consumption in cellular system
ActiveUS20100182942A1Increase capacityFunction increaseIn DTX networksPower managementEngineeringComputer terminal
Provided is a method and apparatus for discontinuously transmitting / receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present research provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting / receiving packet data to reduce power consumption of a terminal in a cellular system, including a) establishing discontinuous reception / transmission (DRX / DTX) parameters including discontinuous DRX / DTX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DRX / DTX based on the DRX / DTX parameters in the terminals operating in the transmission suspension mode.
Owner:ELECTRONICS & TELECOMM RES INST
Method and device for controlling MBMS receiving in a wireless communication system
The present invention provides a method of receiving a multimedia broadcast / multicast service in a user equipment of a wireless communication system based on MBSFN transmission and a method of assisting the user equipment to receive the service in the corresponding base station; wherein the user equipment receives a transport block from the base station in a predefined period; and then judges whether a notification indicator in the transport block is activated, if so, then judges whether a service identification of a multimedia broadcast / multicast service customized by the user equipment is included in a transport block including a control signaling in the transport block, if so, then receives the multimedia broadcast / multicast service. By implementing the present invention, a user terminal in IDLE mode only needs a predefined period such as a DRX period to wake up to receive the notification indicator to judge whether a new service will start without waking up at extra time.
Owner:NOKIA TECHNOLOGLES OY
Secure pki communications for "machine-to-machine" modules, including key derivation by modules and authenticating public keys
ActiveUS20190097793A1Communication is efficient and secureReduce power consumptionKey distribution for secure communicationIn DRX networksDigital signatureComputer module
Methods and systems are provided for efficient and secure “Machine-to-Machine” (M2M) between modules and servers. A module can communicate with a server by accessing the Internet, and the module can include a sensor and / or actuator. The module and server can utilize public key infrastructure (PKI) such as public keys to encrypt messages. The module and server can use private keys to generate digital signatures for datagrams sent and decrypt messages received. The module can internally derive pairs of private / public keys using cryptographic algorithms and a set of parameters. A server can use a shared secret key to authenticate the submission of derived public keys with an associated module identity. For the very first submission of a public key derived the module, the shared secret key can comprise a pre-shared secret key which can be loaded into the module using a pre-shared secret key code.
Owner:NETWORK 1 TECH +1
Access point, wireless communication station, wireless communication system and wireless communication method
InactiveUS20100110962A1Reduce power consumptionPower managementIn DRX networksCommunications systemMulticast packets
The present invention implements an intermittent reception method with which a portable station that does not receive a multicast service does not enter the Awake state unnecessarily. A packet buffer portion buffers a received packet in such a memory as RAM and recording device, and judges whether the buffered packet is a multicast packet. When the packet buffer unit judges that the packet buffered by the packet buffer unit is a multicast packet, a DTIM beacon generation unit generates a DTIM beacon in which multicast notification data indicating that the multicast packet is buffered is set. A packet transmission unit transmits the DTIM beacon generated by the DTIM beacon generation unit to wireless communication stations or the like.
Owner:NTT DOCOMO INC
Method for transmitting phasing information and phasing method in mobile communication system
InactiveUS20100110953A1Guaranteed normal transmissionPower managementSynchronisation arrangementControl channelPaging
The present invention relates to a method of transmitting paging information and a paging method in a mobile communication system. According to the invention, in a case of starting to transmit downlink information to mobile stations that do not maintain uplink synchronization while performing a low-power-consumption operation in an active state, the start of the information transmission is informed by transmitting a medium access control (MAC) paging message to the mobile stations. In this case, the invention can inform the mobile station that the MAC paging message exists in a physical layer control channel or can transmit the generated MAC paging message through only the physical layer control channel. Accordingly, the invention can efficiently transmit the paging information while maximizing utilization of a limited radio resource.
Owner:ELECTRONICS & TELECOMM RES INST
Method for monitoring PDCCH in FDD half-duplex communication and terminal thereof
One embodiment of the present description provides a method for monitoring a physical downlink control channel (PDCCH). The method for monitoring a PDCCH can comprise the steps of: performing a frequency division duplex (FDD) half-duplex operation; and determining whether to monitor the PDCCH if discontinuous reception (DRX) is set. Here, when a downlink subframe of a downlink carrier is positioned immediately before an uplink subframe of an uplink carrier, the PDCCH can be monitored in the downlink subframe during an active time.
Owner:LG ELECTRONICS INC
Scheduling request procedure
ActiveUS10271347B2Accelerated programFlexibly delayingPower managementIn DRX networksDuration periodCommunications system
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Method and system for connectionless transmission during uplink and downlink of data packets
A method and system for uplink-downlink transmission of data packets in a wireless cellular network, during idle state of User Equipment (UE) using connectionless transmission is disclosed. The method establishes S1 common bearer between a Radio Access Network (RAN) node and Serving Gateway (SGW) and S5 common bearer between the SGW and Packet Data Network Gateway (PGW). The method defines a modified Uu interface between the UE and the RAN node. The method appends data packets with UE Identifier (ID) and routing information as packet header information to independently route data packets through wireless cellular network in a self-sustainable manner using the established common bearers and the modified Uu interface. The method secures data packets by providing integrity and ciphering protection. The method eliminates cost of dedicated bearer set up and reduces signaling overhead on the Uu interface thereby improving network efficiency and battery life of the UE.
Owner:SAMSUNG ELECTRONICS CO LTD
Key derivation for a module using an embedded universal integrated circuit card
ActiveUS10700856B2Improve the usefulnessIncrease valueKey distribution for secure communicationIn DRX networksSecret shareNetwork key
A module with an embedded universal integrated circuit card (eUICC) can include a received eUICC profile and a set of cryptographic algorithms. The received eUICC profile can include an initial shared secret key for authentication with a wireless network. The module can receive a key K network token and send a key K module token to the wireless network. The module can use the key K network token, a derived module private key, and a key derivation function to derive a secret shared network key K that supports communication with the wireless network. The wireless network can use the received key K module token, a network private key, and the key derivation function in order to derive the same secret shared network key K derived by the module. The module and the wireless network can subsequently use the mutually derived key K to communicate using traditional wireless network standards.
Owner:JOHN A NIX +1
Method for transmitting and receiving signal in wireless communication system and device therefor
ActiveUS10292144B2Reduce power consumptionIn DTX networksIn DRX networksResource poolCommunications system
Owner:LG ELECTRONICS INC
Radio communication apparatus
ActiveUS20120108289A1Reduce processing loadEffectively accomplish adaptive modulation and codingIn DTX networksPower managementTransmitterReal-time computing
A radio communication apparatus that includes a receiver that accomplishes intermittent reception of information in a first mode, the information indicating a transmitting format used for a shared channel via which data is received and a transmitter that accomplishes intermittent transmission of quality information at a timing in the first mode, the quality information relating to the transmitting format; and a controller that sets in advance the timing of the intermittent transmission so as to become a given time before a timing of the intermittent reception.
Owner:FUJITSU LTD
C-DRX modification based on mobility and signal conditions
ActiveUS10021649B2Reduce power consumptionReduce frequencyPower managementIn DRX networksMultiple criteriaRadio Resource Control
This disclosure relates to techniques for modifying connected mode discontinuous reception (C-DRX) cycle length based on mobility and signal conditions. According to some embodiments, a wireless device may establish a radio resource control connection with a base station providing a cell of a cellular network. A C-DRX configuration may be established with the base station, including selecting a C-DRX cycle length. One or more conditions configured to trigger the wireless device to request C-DRX reconfiguration may be detected. The one or more conditions may be based on mobility and / or signal conditions of the wireless device. A request for C-DRX reconfiguration to the base station may be transmitted based on detecting the one or more conditions. C-DRX with the base station may be re-configured based on the request for C-DRX reconfiguration.
Owner:APPLE INC
Self-adjusting discontinuous reception pattern
Radio access networks and particularly enhancements for diverse data applications may benefit from a self-adjusting discontinuous reception (DRX) pattern. According to certain embodiments, for example, a method may include configuring a discontinuous reception pattern of a user equipment and adjusting the discontinuous reception pattern at the user equipment autonomously with respect to a base station.
Owner:NOKIA TECH OY
Adaptive C-DRX management
Owner:APPLE INC
Apparatus, system, and method for radio interface selection for IMS connection based on power considerations
Owner:APPLE INC
User terminal, rsu, method and program
ActiveUS20190246250A1Reduce power consumptionIn DTX networksIn DRX networksComputer sciencePedestrian
An electronic device configured to perform wireless communication in accordance with vehicle-to-X (V2X) communication, the V2X communication including at least vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, and vehicle-to-pedestrian (V2P) communication, each of the V2V, V2I and V2P communications having an intermittent communication function; receive a signal associated with a location of the electronic device; determine whether to activate or deactivate a communication parameter corresponding to the V2P communication based on the signal associated with the location of the electronic device; activate or deactivate the communication parameter corresponding to the V2P communication based on the determining; and activate the intermittent communication function for the V2P communication in a case that that the parameter corresponding to the V2P communication is activated.
Owner:SONY CORP
Methods and Apparatus for Handling MTC Long DRX Cycle/Sleep Lengths
ActiveUS20180302946A1Minimizing clock drift impactReduce power consumptionPower managementIn DRX networksLow mobilityEngineering
Current wireless networks do not allow machine type communication (MTC) devices to have long discontinuous reception (DRX) cycles or sleep lengths. A long DRX cycle may allow MTC systems and devices to operate with much longer DRX / Sleep cycles / periods. This may facilitate the MTC operations for infrequent system access or infrequent system reaching (e.g. paged once in a week) with no or low mobility and may allow MTC devices to sleep for a long time with low power consumption.
Owner:INTERDIGITAL PATENT HLDG INC
Techniques for managing wireless transmission energy budget
ActiveUS10123277B2Efficient wireless transmissionPower managementIn DRX networksEnergy budgetPower mode
Techniques are disclosed relating to wireless transmission energy budgets. In some embodiments, an apparatus is configured to determine wireless transmission energy budget for a plurality of time periods. In some embodiments, the apparatus determines budget differently depending on whether it is in a thermal mode or a peak power mode. In some embodiments, the apparatus blanks scheduled wireless transmissions that intersect with the battery signal. In some embodiments, for a time interval subsequent to assertion of the battery signal, the apparatus operates in the peak power mode and determines energy budget for periods based on an amount of energy used for wireless transmissions in a most recent period in which transmissions were blanked in response to the battery signal. In some embodiments, in the thermal mode, the energy budget is based on thermal information for the apparatus, but may also allow carryover of unused budget from previous periods.
Owner:APPLE INC
Macro cell assisted small cell discovery and resource activation
ActiveUS10003992B2Reliable informationImprove reliabilityPower managementIn DRX networksCommunications systemMacro base stations
A method is described for controlling a small cell base station and a user equipment to be served by the small base station in a wireless communication system having a plurality of small cell base stations controlled by a macro base station. The method has, in response to a request from the macro base station to the small cell base station, performing, by the small cell base station, a beacon transmission on one or more resources, in response to a request from the macro base station to the user equipment, performing, by the user equipment, a channel quality measurement on the one or more resources, and reporting the measured channel quality from the user equipment to the macro base station.
Owner:NTT DOCOMO INC
Methods, devices, and systems for discontinuous reception for a shortened transmission time interval and processing time
ActiveUS10602567B2Power managementError prevention/detection by using return channelEngineeringTransmission Time Interval
A method and apparatus for discontinuous reception for a shortened transmission time interval and processing time includes a device receiving, from a network, an indication to enable a first TTI which is a shorter TTI than a second TTI for which the device can be enabled. The method further includes the device switching from monitoring for data transmission scheduling assignments under the control of a DRX configuration associated with the second transmission time interval to monitoring for the data transmission scheduling assignments based on the first transmission time interval.
Owner:MOTOROLA MOBILITY LLC
Communications network, macro cell, small cell, communications system and communications method
There is provided a heterogeneous communications network. The heterogeneous communications network comprises: a macro cell; a small cell provided within the macro cell; and a user equipment provided within the macro cell, wherein the user equipment is operable to receive control-plane information from the macro cell and user-plane information from the macro cell and / or the small cell, and wherein the user equipment is operable to transmit a connection request based on the received control-plane information, the macro cell and / or small cell are operable to determine which of the macro cell and the small cell is to operate as the serving cell for the user equipment based on the connection request, and the determined serving cell is operable to transmit a connection response to the user equipment.
Owner:ALCATEL LUCENT SAS
Method and apparatus for measuring inter-frequency neighboring cell and user equipment thereof
ActiveUS10306555B2Reduce measurement frequencyReduce measurementPower managementIn DRX networksCarrier signalComputer science
Owner:SAMSUNG ELECTRONICS CO LTD
Method and system for minimizing power consumption of user equipment during cell detection
A method and system for minimizing the battery power consumption of user equipment (UE) during inter-frequency cell detection in a heterogeneous network is disclosed. A serving cell in the heterogeneous network provides a relaxed cell detection indication to the UE on a specified frequency for cell detection. The UE applies the relaxed cell detection for detecting the cells on the specified frequency. During inter-frequency cell detection on specified frequency, the UE discards some normal measurement gaps. The inter-frequency cell detection is delayed as compared to normal cell detection time requirement using the normal measurement gaps. The UE deactivates the relaxed detection indication, upon detecting the inter-frequency cell and performs the continuous RSRP and RSRQ measurements for detected inter-frequency cell using all the normal measurement gaps to meet normal measurement accuracy and measurement reporting requirement.
Owner:SAMSUNG ELECTRONICS CO LTD
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