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WO2017051502A1 - Systèmes et procédés de commande de radiomessagerie - Google Patents

Systèmes et procédés de commande de radiomessagerie Download PDF

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Publication number
WO2017051502A1
WO2017051502A1 PCT/JP2016/003840 JP2016003840W WO2017051502A1 WO 2017051502 A1 WO2017051502 A1 WO 2017051502A1 JP 2016003840 W JP2016003840 W JP 2016003840W WO 2017051502 A1 WO2017051502 A1 WO 2017051502A1
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Prior art keywords
paging cycle
enb
paging
cell
drx
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English (en)
Inventor
Shohei Yamada
Katsunari Uemura
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Sharp Corp
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Sharp Corp
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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
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • 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
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • 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
    • 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 disclosure relates generally to communication systems. More specifically, the present disclosure relates to systems and methods for paging control.
  • a wireless communication system may provide communication for a number of wireless communication devices, each of which may be serviced by a base station.
  • a base station may be a device that communicates with wireless communication devices.
  • wireless communication devices may communicate with one or more devices using multiple cells.
  • the multiple cells may only offer limited flexibility and efficiency.
  • the multiple cells may only offer limited flexibility and efficiency.
  • wireless communication devices may communicate with a base station by low cost and low power consumption. As illustrated by this discussion, systems and methods that improve communication flexibility and efficiency may be beneficial.
  • a method by a user equipment comprising: determining a paging cycle; and receiving, from an evolved Node B (eNB), a paging message based on the paging cycle, wherein if a first configuration is included in system information in a cell and upper layers of the UE indicate that the UE specific paging cycle for extended discontinuous reception (DRX) is configured, the UE speciifc paging cycle is used, and the first configuration is an indication whether a paging cycle for extended DRX is used in the cell.
  • eNB evolved Node B
  • a method by an evolved Node B comprising: determining a paging cycle; and transmitting to a user equipment (UE), a paging message based on the paging cycle, wherein if a first configuration is included in system information in a cell and a mobility management entity (MME) indicate that the UE specific paging cycle for extended discontinuous reception (DRX) is configured, the UE specific paging cycle is used, and the first configuration is an indication whether a paging cycle for extended DRX is used in the cell.
  • MME mobility management entity
  • a user equipment comprising: a processing circuitry configured and/or programmed to: determine a paging cycle; and receive, from an evolved Node B (eNB), a paging message based on the paging cycle, wherein if a first configuration is included in system information in a cell and upper layers of the UE indicates that the UE specific paging cycle for extended discontinuous reception (DRX) is configured, the UE speicifc paging cycle is used, and the first configuration is an indication whether a paging cycle for extended DRX is used in the cell.
  • eNB evolved Node B
  • an evolved Node B comprising: a processing circuitry configured and/or programmed to: determine a paging cycle; and transmit, to a user equipment (UE), a paging message based on the paging cycle, wherein if a first configuration is included in system information in a cell and a mobility management entity (MME) indicates that the UE specific paging cycle for extended discontinuous reception (DRX) is configured, the UE speicifc paging cycle is used, and the first configuration is an indication whether a paging cycle for extended DRX is used in the cell.
  • MME mobility management entity
  • Figure 1 is a block diagram illustrating one configuration of one or more evolved Node Bs (eNBs) and one or more user equipments (UEs) in which systems and methods for paging control may be implemented.
  • Figure 2 is a flow diagram illustrating one implementation of a method for performing a paging procedure by a UE.
  • Figure 3 is a flow diagram illustrating one implementation of a method for performing a paging procedure by an eNB.
  • Figure 4 illustrates various components that may be utilized in a UE.
  • Figure 5 illustrates various components that may be utilized in an eNB.
  • a method by a user equipment is described.
  • the method may include determining a paging cycle and receiving, from an evolved Node B (eNB), a paging message based on the paging cycle.
  • eNB evolved Node B
  • the paging cycle is determined from UE specific paging cycle or default paging cycle.
  • the UE speicifc paging cycle may be selected, otherwise the shortest of the UE specific paging cycle and the default paging cycle may be selected.
  • the first configuration may be information related to hyper system frame number.
  • a method by an evolved Node B (eNB) is also described.
  • the method may include determining a paging cycle and receiving, from an evolved Node B (eNB), a paging message based on the paging cycle.
  • eNB evolved Node B
  • a first configuration is included in system information in a cell and a mobility management entity (MME) indicates that the UE specific paging cycle is configured for extended discontinuous reception (DRX)
  • MME mobility management entity
  • the UE specific paging cycle may be selected, otherwise the shortest of the UE specific paging cycle and the default paging cycle may be selected.
  • the UE may include a processing circuitry.
  • the processing circuitry may be configured and/or programmed to determine a paging cycle and receive, from an evolved Node B (eNB), a paging message based on the paging cycle.
  • eNB evolved Node B
  • the eNB may include a processing circuitry.
  • the processing circuitry may be configured and/or programmed to determine a paging cycle and transmit, to a user equipment (UE), a paging message based on the paging cycle.
  • UE user equipment
  • 3GPP Long Term Evolution is the name given to a project to improve the Universal Mobile Telecommunications System (UMTS) mobile phone or device standard to cope with future requirements.
  • UMTS has been modified to provide support and specification for the Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN).
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • At least some aspects of the systems and methods disclosed herein may be described in relation to the 3GPP LTE, LTE-Advanced (LTE-A) and other standards (e.g., 3GPP Releases (Rel-) 8, 9, 10, 11, 12 and/or 13). However, the scope of the present disclosure should not be limited in this regard. At least some aspects of the systems and methods disclosed herein may be utilized in other types of wireless communication systems.
  • LTE LTE-Advanced
  • Rel- 3GPP Releases 8 9, 10, 11, 12 and/or 13
  • a wireless communication device may be an electronic device used to communicate voice and/or data to a base station, which in turn may communicate with a network of devices (e.g., public switched telephone network (PSTN), the Internet, etc.).
  • a wireless communication device may alternatively be referred to as a mobile station, a UE (User Equipment), an access terminal, a subscriber station, a mobile terminal, a remote station, a user terminal, a terminal, a subscriber unit, a mobile device, etc.
  • Examples of wireless communication devices include cellular phones, smart phones, personal digital assistants (PDAs), laptop computers, netbooks, e-readers, wireless modems, etc.
  • a wireless communication device In 3GPP specifications, a wireless communication device is typically referred to as a UE. However, as the scope of the present disclosure should not be limited to the 3GPP standards, the terms “UE” and “wireless communication device” may be used interchangeably herein to mean the more general term “wireless communication device.”
  • a base station In 3GPP specifications, a base station is typically referred to as a Node B, an eNB, a home enhanced or evolved Node B (HeNB) or some other similar terminology.
  • the terms “base station,” “Node B,” “eNB,” and “HeNB” may be used interchangeably herein to mean the more general term “base station.”
  • base station is an access point.
  • An access point may be an electronic device that provides access to a network (e.g., Local Area Network (LAN), the Internet, etc.) for wireless communication devices.
  • a network e.g., Local Area Network (LAN), the Internet, etc.
  • the term “communication device” may be used to denote both a wireless communication device and/or a base station.
  • a “cell” may be any communication channel that is specified by standardization or regulatory bodies to be used for International Mobile Telecommunications-Advanced (IMT-Advanced) and all of it or a subset of it may be adopted by 3GPP as licensed bands (e.g., frequency bands) to be used for communication between an eNB and a UE. It should also be noted that in E-UTRA and E-UTRAN overall description, as used herein, a “cell” may be defined as “combination of downlink (DL) and optionally uplink (UL) resources.” The linking between the carrier frequency of the downlink resources and the carrier frequency of the uplink resources may be indicated in the system information transmitted on the downlink resources.
  • IMT-Advanced International Mobile Telecommunications-Advanced
  • Configured cells are those cells of which the UE is aware and is allowed by an eNB to transmit or receive information.
  • Configured cell(s) may be serving cell(s). The UE may receive system information and perform the required measurements on configured cells.
  • Configured cell(s)” for a radio connection may consist of a primary cell and/or no, one, or more secondary cell(s).
  • Activated cells are those configured cells on which the UE is transmitting and receiving. That is, activated cells are those cells for which the UE monitors the physical downlink control channel (PDCCH) and in the case of a downlink transmission, those cells for which the UE decodes a physical downlink shared channel (PDSCH).
  • PDCCH physical downlink control channel
  • PDSCH physical downlink shared channel
  • Deactivated cells are those configured cells that the UE is not monitoring the transmission PDCCH. It should be noted that a “cell” may be described in terms of differing dimensions. For example, a “cell” may have temporal, spatial (e.g., geographical) and frequency characteristics.
  • the eNBs may also be connected by the S1 interface to the evolved packet core (EPC).
  • the eNBs may be connected to a mobility management entity (MME) by the S1-MME interface and to the serving gateway (S-GW) by the S1-U interface 433a.
  • MME mobility management entity
  • S-GW serving gateway
  • the S1 interface supports a many-to-many relation between MMEs, serving gateways and the eNBs.
  • the S1-MME interface is the S1 interface for the control plane and the S1-U interface is the S1 interface for the user plane.
  • the Uu interface is a radio interface between the UE and the eNB for the radio protocol of E-UTRAN 435a.
  • the radio protocol architecture of E-UTRAN may include the user plane and the control plane.
  • the user plane protocol stack may include packet data convergence protocol (PDCP), radio link control (RLC), medium access control (MAC) and physical (PHY) layers.
  • a DRB Data Radio Bearer is a radio bearer that carries user data (as opposed to control plane signaling). For example, a DRB may be mapped to the user plane protocol stack.
  • the PDCP, RLC, MAC and PHY sublayers may perform functions (e.g., header compression, ciphering, scheduling, ARQ and HARQ) for the user plane.
  • PDCP entities are located in the PDCP sublayer.
  • RLC entities are located in the RLC sublayer.
  • MAC entities are located in the MAC sublayer.
  • the PHY entities are located in the PHY sublayer.
  • the control plane may include a control plane protocol stack.
  • the PDCP sublayer (terminated in eNB on the network side) may perform functions (e.g., ciphering and integrity protection) for the control plane.
  • the RLC and MAC sublayers (terminated in eNB on the network side) may perform the same functions as for the user plane.
  • the Radio Resource Control (RRC) (terminated in eNB on the network side) may perform the following functions.
  • the RRC may perform broadcast functions, paging, RRC connection management, radio bearer (RB) control, mobility functions, UE measurement reporting and control.
  • RB radio bearer
  • the Non-Access Stratum (NAS) control protocol may perform, among other things, evolved packet system (EPS) bearer management, authentication, evolved packet system connection management (ECM)- IDLE mobility handling, paging origination in ECM-IDLE and security control.
  • EPS evolved packet system
  • ECM evolved packet system connection management
  • SRBs Signaling Radio Bearers
  • RB Radio Bearers
  • Three SRBs are defined.
  • SRB0 may be used for RRC messages using the common control channel (CCCH) logical channel.
  • SRB1 may be used for RRC messages (which may include a piggybacked NAS message) as well as for NAS messages prior to the establishment of SRB2, all using the dedicated control channel (DCCH) logical channel.
  • SRB2 may be used for RRC messages which include logged measurement information as well as for NAS messages, all using the DCCH logical channel.
  • SRB2 has a lower-priority than SRB1 and may be configured by E-UTRAN (e.g., eNB) after security activation.
  • E-UTRAN e.g., eNB
  • a broadcast control channel (BCCH) logical channel may be used for broadcasting system information. Some of BCCH logical channel may convey system information which may be sent from the EUTRAN to the UE via BCH (Broadcast Channel) transport channel. Some of BCCH logical channel may convey system information which may be sent from the E-UTRAN to the UE via DL-SCH (Downlink Shared Channel) transport channel. Paging may be provided by using paging control channel (PCCH) logical channel.
  • PCCH paging control channel
  • the DL-DCCH logical channel may be used (but not limited to) for a RRC connection reconfiguration message, a RRC connection reestablishment message, a RRC connection release, a UE Capability Enquiry message, a DL Information Transfer message or a Security Mode Command message.
  • UL-DCCH logical channel may be used (but not limited to) for a measurement report message, a RRC Connection Reconfiguration Complete message, a RRC Connection Reestablishment Complete message, a RRC Connection Setup Complete message, a Security Mode Complete message, a Security Mode Failure message, a UE Capability Information, message, a UL Handover Preparation Transfer message, a UL Information Transfer message, a Counter Check Response message, a UE Information Response message, a Proximity Indication message, a RN (Relay Node) Reconfiguration Complete message, an MBMS Counting Response message, an inter Frequency RSTD Measurement Indication message, a UE Assistance Information message, an In-device Coexistence Indication message, an MBMS Interest Indication message, an SCG Failure Information message.
  • a measurement report message a RRC Connection Reconfiguration Complete message, a RRC Connection Reestablishment Complete message, a RRC Connection Setup Complete message, a Security Mode Complete message, a Security Mode
  • DL-CCCH logical channel may be used (but not limited to) for a RRC Connection Reestablishment message, a RRC Connection Reestablishment Reject message, a RRC Connection Reject message, or a RRC Connection Setup message.
  • UL-CCCH logical channel may be used (but not limited to) for a RRC Connection Reestablishment Request message, or a RRC Connection Request message.
  • MIB MasterInformationBlock
  • SIBs SystemInformationBlocks
  • the UE may receive one or more RRC messages from the eNB to obtain RRC configurations or parameters.
  • the RRC layer of the UE may configure RRC layer and/or lower layers (e.g., PHY layer, MAC layer, RLC layer, PDCP layer) of the UE according to the RRC configurations or parameters which may be configured by the RRC messages, broadcasted system information, and so on.
  • the eNB may transmit one or more RRC messages to the UE to cause the UE to configure RRC layer and/or lower layers of the UE according to the RRC configurations or parameters which may be configured by the RRC messages, broadcasted system information, and so on.
  • the UE When carrier aggregation is configured, the UE may have one RRC connection with the network.
  • One radio interface may provide carrier aggregation.
  • one serving cell may provide Non-Access Stratum (NAS) mobility information (e.g., a tracking area identity (TAI)).
  • NAS Non-Access Stratum
  • TAI tracking area identity
  • one serving cell may provide a security input. This cell may be referred to as the primary cell (PCell).
  • the component carrier corresponding to the PCell may be the downlink primary component carrier (DL PCC), while in the uplink it may be the uplink primary component carrier (UL PCC).
  • DL PCC downlink primary component carrier
  • U PCC uplink primary component carrier
  • one or more SCells may be configured to form together with the PCell a set of serving cells.
  • the component carrier corresponding to an SCell may be a downlink secondary component carrier (DL SCC), while in the uplink it may be an uplink secondary component carrier (UL SCC).
  • DL SCC downlink secondary component carrier
  • UL SCC uplink secondary component carrier
  • the configured set of serving cells for the UE may consist of one PCell and one or more SCells.
  • the usage of uplink resources by the UE 102 may be configurable.
  • the number of DL SCCs configured may be larger than or equal to the number of UL SCCs and no SCell may be configured for usage of uplink resources only.
  • each uplink resource may belong to one serving cell.
  • the number of serving cells that may be configured depends on the aggregation capability of the UE.
  • the PCell may only be changed using a handover procedure (e.g., with a security key change and a random access procedure).
  • a PCell may be used for transmission of the PUCCH.
  • a primary secondary cell (PSCell) may also be used for transmission of the PUCCH.
  • the PCell or PSCell may not be de-activated. Reestablishment may be triggered when the PCell experiences radio link failure (RLF), not when the SCells experience RLF.
  • NAS information may be taken from the PCell.
  • Radio Resource Control (RRC) layer may also add, remove or reconfigure SCells for usage with a target PCell.
  • RRC Radio Resource Control
  • dedicated RRC signaling may be used for sending all required system information of the SCell (e.g., while in connected mode, UEs need not acquire broadcasted system information directly from the SCells).
  • Carrier aggregation refers to the concurrent utilization of more than one component carrier (CC).
  • CC component carrier
  • carrier aggregation may be used to increase the effective bandwidth available to a UE.
  • a single eNB is assumed to provide multiple serving cells for a UE. Even in scenarios where two or more cells may be aggregated (e.g., a macro cell aggregated with remote radio head (RRH) cells) the cells may be controlled (e.g., scheduled) by a single eNB.
  • RRH remote radio head
  • the system and method described herein may enhance the accommodation of UEs with new type or new category which have limited features (e.g. specific UEs). Especially, such UEs may be efficient for Machine-Type Communications (MTC), but it is noted that it is not limited to MTC use case.
  • MTC Machine-Type Communications
  • the provision of Machine-Type Communications (MTC) via cellular networks is proving to be a significant opportunity for new revenue generation for mobile operators.“Low cost & enhanced coverage MTC UE for LTE” in Release 12 specified a low complexity LTE device for MTC with Bill of Material cost approaching that of an Enhanced General Packet Radio Service (EGPRS) modem using a combination of complexity reduction techniques.
  • EGPS Enhanced General Packet Radio Service
  • the general objective is to specify a new UE in LTE that also allows for enhanced coverage compared to existing LTE networks and low power consumption, with the following detailed objectives. It may be to specify a new low complexity UE category/type for MTC operation in any LTE duplex mode (full duplex FDD, half duplex FDD, TDD) based on the Rel-12 low complexity UE category/type supporting the following additional capabilities. It may be to reduced UE bandwidth of 1.4 MHz (i.e., 6 Physical Resource Blocks (PRBs)) in downlink and uplink. It may be a bandwidth reduced UEs should be able to operate within any system bandwidth. It may be frequency multiplexing of bandwidth reduced UEs and non-MTC UEs should be supported.
  • PRBs Physical Resource Blocks
  • the present disclosure relates especially to how low complexity, bandwidth reduced and/or coverage enhanced UEs (e.g, specific UEs, MTC UEs) can be accommodated in current and future LTE system.
  • low complexity, bandwidth reduced and/or coverage enhanced UEs e.g, specific UEs, MTC UEs
  • Power consumption may be important for UEs using battery or an external power supply and its importance may increase with the continued growth of device populations and more demanding use cases. The importance can be illustrated by following scenarios.
  • M2M Machine to Machine
  • M2M Machine to Machine
  • PSM Power Saving Mode
  • PSM may have limited applicability for unscheduled Mobile Terminated data with some requirement on delay tolerance.
  • the UE would need to negotiate Periodic TAU timer equal (or slightly shorter) than the maximum allowed delay tolerance for mobile terminated (MT) data.
  • the PSM solution may introduce an important increase in signaling due to more frequent periodic TAU procedures. It may also suffer in terms of power consumption performance because the UE would be required to "wake up" very frequently in order to perform this signaling.
  • MT data that is infrequent, most of the wake up procedures would turn out to be entirely unnecessary and thus power inefficient.
  • DRX Discontinuous Reception
  • DRX cycles in LTE can at most be 2.56s and thus would not allow for sufficient power savings for UEs that only need to wake-up infrequently (e.g. every few or tens of minutes) for MT data.
  • DRX cycle extension is required in order to enable significant battery savings for such UEs.
  • the DRX cycle can be set depending on the data delay tolerance and power saving requirements, thus providing a flexible solution for achieving significant UE battery savings.
  • the DRX should be extended past the current System Frame Number (SFN) limit of 10.24s. Increasing the DRX cycle in order of minutes may benefit reducing power consumption.
  • SFN System Frame Number
  • the UE may determine the Paging Frame (PF)/ Paging Occasion (PO) based on the legacy DRX formula/cycle (i.e. no change on the paging occasion computation).
  • PF Paging Frame
  • PO Paging Occasion
  • the paging message can be repeated on different the paging occasions determined using the legacy DRX formula for a certain time window.
  • the UE should be able to re-synchronize over Uu interface with the E-UTRAN without sending uplink signaling (e.g., Hyper-SFN (H-SFN) broadcast information).
  • H-SFN Hyper-SFN
  • the hyper-SFN (H-SFN) is broadcasted by the cell.
  • Each H-SFN corresponds to one SFN cycle (i.e, 10.24s).
  • an extension of legacy SFN range i.e. legacy SFN range is 1024 (10 bits)
  • H-SFN extends the SFN range.
  • new frame structure on top of legacy SFN structure where each H-SFN value corresponds to a cycle of legacy SFN of 1024 frames.
  • the UE may use Discontinuous Reception (DRX) in idle mode in order to reduce power consumption.
  • DRX Discontinuous Reception
  • One Paging Occasion is a subframe where there may be PRNTI transmitted on PDCCH addressing the paging message.
  • One Paging Frame (PF) is one Radio Frame, which may contain one or multiple Paging Occasion(s). When DRX is used the UE needs only to monitor one PO per DRX cycle.
  • PF and PO may be determined by following formulae using the DRX parameters provided in System Information:
  • IMSI International Mobile Subscriber Identity
  • Integer (0..9)
  • IMSI may in the formulae above be interpreted as a decimal integer number, where the first digit given in the sequence represents the highest order digit.
  • the UE may apply the configuration (e.g., default paging cycle and nB) included in the radio resource configuration common (radioResourceConfigCommon) included in the SIB2. If upper layers indicate that a (UE specific) paging cycle is configured, the UE may apply the shortest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the UE specific paging cycle may be determined by upper layers (e.g., NAS signaling between MME and UE).
  • T (DRX cycle of the UE) may be determined by the shortest of the UE specific DRX value, if allocated by upper layers, and a default DRX value broadcast in system information. If UE specific DRX is not configured by upper layers, the default value may applied. However, for introduction of DRX cycle extension and/or H-SFN, further efficient determination of paging cycle (or DRX cycle) may be considered.
  • Figure 1 is a block diagram illustrating one configuration of one or more evolved Node Bs (eNBs) 160 and one or more user equipments (UEs) 102 in which systems and methods for accommodating specific UEs may be implemented.
  • the one or more UEs 102 may communicate with one or more eNBs 160 using one or more antennas 122a-n.
  • a UE 102 transmits electromagnetic signals to the eNB 160 and receives electromagnetic signals from the eNB 160 using the one or more antennas 122a-n.
  • the eNB 160 communicates with the UE 102 using one or more antennas 180a-n.
  • one or more of the UEs 102 described herein may be implemented in a single device.
  • multiple UEs 102 may be combined into a single device in some implementations.
  • one or more of the eNBs 160 described herein may be implemented in a single device.
  • multiple eNBs 160 may be combined into a single device in some implementations.
  • a single device may include one or more UEs 102 in accordance with the systems and methods described herein.
  • one or more eNBs 160 in accordance with the systems and methods described herein may be implemented as a single device or multiple devices.
  • the UE 102 and the eNB 160 may use one or more channels 119, 121 to communicate with each other.
  • a UE 102 may transmit information or data to the eNB 160 using one or more uplink channels 121 and signals.
  • uplink channels 121 include a physical random access channel (PRACH), a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), etc.
  • uplink signals include a demodulation reference signal (DMRS) and a sounding reference signal (SRS), etc.
  • the one or more eNBs 160 may also transmit information or data to the one or more UEs 102 using one or more downlink channels 119 and signals, for instance.
  • Examples of downlink channels 119 include a PDCCH, a PDSCH, an enhanced PDCCH (EPDCCH), etc.
  • Examples of downlink signals include a primary synchronization signal (PSS), a cell-specific reference signal (CRS), and a channel state information (CSI) reference signal (CSI-RS), etc. Other kinds of channels or signals may be used.
  • Each of the one or more UEs 102 may include one or more transceivers 118, one or more demodulators 114, one or more decoders 108, one or more encoders 150, one or more modulators 154, one or more data buffers 104 and one or more UE operations modules 124.
  • one or more reception and/or transmission paths may be implemented in the UE 102.
  • only a single transceiver 118, decoder 108, demodulator 114, encoder 150 and modulator 154 are illustrated in the UE 102, though multiple parallel elements (e.g., transceivers 118, decoders 108, demodulators 114, encoders 150 and modulators 154) may be implemented.
  • the transceiver 118 may include one or more receivers 120 and one or more transmitters 158.
  • the one or more receivers 120 may receive signals from the eNB 160 using one or more antennas 122a-n.
  • the receiver 120 may receive and downconvert signals to produce one or more received signals 116.
  • the one or more received signals 116 may be provided to a demodulator 114.
  • the one or more transmitters 158 may transmit signals to the eNB 160 using one or more antennas 122a-n.
  • the one or more transmitters 158 may upconvert and transmit one or more modulated signals 156.
  • the demodulator 114 may demodulate the one or more received signals 116 to produce one or more demodulated signals 112.
  • the one or more demodulated signals 112 may be provided to the decoder 108.
  • the UE 102 may use the decoder 108 to decode signals.
  • the decoder 108 may produce one or more decoded signals 106, 110.
  • a first UE-decoded signal 106 may comprise received payload data, which may be stored in a data buffer 104.
  • a second UE-decoded signal 110 may comprise overhead data and/or control data.
  • the second UE-decoded signal 110 may provide data that may be used by the UE operations module 124 to perform one or more operations.
  • module may mean that a particular element or component may be implemented in hardware, software or a combination of hardware and software. However, it should be noted that any element denoted as a “module” herein may alternatively be implemented in hardware.
  • the UE operations module 124 may be implemented in hardware, software or a combination of both.
  • the UE operations module 124 may enable the UE 102 to communicate with the one or more eNBs 160.
  • the UE operations module 124 may include one or more of a UE paging control module 126.
  • the UE operations module 124 may include physical (PHY) entities, Medium Access Control (MAC) entities, Radio Link Control (RLC) entities, packet data convergence protocol (PDCP) entities, and an Radio Resource Control (RRC) entity.
  • PHY physical
  • MAC Medium Access Control
  • RLC Radio Link Control
  • PDCP packet data convergence protocol
  • RRC Radio Resource Control
  • the UE operations module 124 may provide the benefit of performing a paging procedure efficiently.
  • the UE paging control module 126 may control a paging procedure and control parameters in paging configurations (e.g., paging cycle, nB).
  • the UE operations module 124 may provide information 148 to the one or more receivers 120. For example, the UE operations module 124 may inform the receiver(s) 120 when or when not to receive transmissions based on the RRC message (e.g, broadcasted system information, RRC connection reconfiguration message), MAC control element (CE), and/or the DCI (Downlink Control Information) .
  • the RRC message e.g, broadcasted system information, RRC connection reconfiguration message
  • CE MAC control element
  • DCI Downlink Control Information
  • the UE operations module 124 may provide information 138 to the demodulator 114. For example, the UE operations module 124 may inform the demodulator 114 of a modulation pattern anticipated for transmissions from the eNB 160.
  • the UE operations module 124 may provide information 136 to the decoder 108. For example, the UE operations module 124 may inform the decoder 108 of an anticipated encoding for transmissions from the eNB 160.
  • the UE operations module 124 may provide information 142 to the encoder 150.
  • the information 142 may include data to be encoded and/or instructions for encoding.
  • the UE operations module 124 may instruct the encoder 150 to encode transmission data 146 and/or other information 142.
  • the encoder 150 may encode transmission data 146 and/or other information 142 provided by the UE operations module 124. For example, encoding the data 146 and/or other information 142 may involve error detection and/or correction coding, mapping data to space, time and/or frequency resources for transmission, multiplexing, etc.
  • the encoder 150 may provide encoded data 152 to the modulator 154.
  • the UE operations module 124 may provide information 144 to the modulator 154.
  • the UE operations module 124 may inform the modulator 154 of a modulation type (e.g., constellation mapping) to be used for transmissions to the eNB 160.
  • the modulator 154 may modulate the encoded data 152 to provide one or more modulated signals 156 to the one or more transmitters 158.
  • the UE operations module 124 may provide information 140 to the one or more transmitters 158.
  • This information 140 may include instructions for the one or more transmitters 158.
  • the UE operations module 124 may instruct the one or more transmitters 158 when to transmit a signal to the eNB 160.
  • the one or more transmitters 158 may upconvert and transmit the modulated signal(s) 156 to one or more eNBs 160.
  • the eNB 160 may include one or more transceivers 176, one or more demodulators 172, one or more decoders 166, one or more encoders 109, one or more modulators 113, one or more data buffers 162 and one or more eNB operations modules 182.
  • one or more reception and/or transmission paths may be implemented in an eNB 160.
  • only a single transceiver 176, decoder 166, demodulator 172, encoder 109 and modulator 113 are illustrated in the eNB 160, though multiple parallel elements (e.g., transceivers 176, decoders 166, demodulators 172, encoders 109 and modulators 113) may be implemented.
  • the transceiver 176 may include one or more receivers 178 and one or more transmitters 117.
  • the one or more receivers 178 may receive signals from the UE 102 using one or more antennas 180a-n.
  • the receiver 178 may receive and downconvert signals to produce one or more received signals 174.
  • the one or more received signals 174 may be provided to a demodulator 172.
  • the one or more transmitters 117 may transmit signals to the UE 102 using one or more antennas 180a-n.
  • the one or more transmitters 117 may upconvert and transmit one or more modulated signals 115.
  • the demodulator 172 may demodulate the one or more received signals 174 to produce one or more demodulated signals 170.
  • the one or more demodulated signals 170 may be provided to the decoder 166.
  • the eNB 160 may use the decoder 166 to decode signals.
  • the decoder 166 may produce one or more decoded signals 164, 168.
  • a first eNB-decoded signal 164 may comprise received payload data, which may be stored in a data buffer 162.
  • a second eNB-decoded signal 168 may comprise overhead data and/or control data.
  • the second eNB-decoded signal 168 may provide data (e.g., PUSCH transmission data) that may be used by the eNB operations module 182 to perform one or more operations.
  • the eNB operations module 182 may enable the eNB 160 to communicate with the one or more UEs 102.
  • the eNB operations module 182 may include one or more of an eNB paging control module 194.
  • the eNB operations module 182 may include PHY entities, MAC entities, RLC entities, PDCP entities, and an RRC entity.
  • the eNB operations module 182 may provide the benefit of performing a paging procedure efficiently.
  • the eNB paging control module 194 may control a paging procedure and control parameters in paging configurations.
  • the eNB operations module 182 may provide information 190 to the one or more receivers 178. For example, the eNB operations module 182 may inform the receiver(s) 178 when or when not to receive transmissions based on the RRC message (e.g, broadcasted system information, RRC connection reconfiguration message), MAC control element, and/or the DCI (Downlink Control Information) .
  • the RRC message e.g, broadcasted system information, RRC connection reconfiguration message
  • MAC control element e.g, MAC control element
  • DCI Downlink Control Information
  • the eNB operations module 182 may provide information 188 to the demodulator 172. For example, the eNB operations module 182 may inform the demodulator 172 of a modulation pattern anticipated for transmissions from the UE(s) 102.
  • the eNB operations module 182 may provide information 186 to the decoder 166. For example, the eNB operations module 182 may inform the decoder 166 of an anticipated encoding for transmissions from the UE(s) 102.
  • the eNB operations module 182 may provide information 101 to the encoder 109.
  • the information 101 may include data to be encoded and/or instructions for encoding.
  • the eNB operations module 182 may instruct the encoder 109 to encode transmission data 105 and/or other information 101.
  • the eNB operations module 182 may enable the eNB 160 to communicate with one or more network nodes (e.g., a mobility management entity (MME), serving gateway (S-GW), eNBs).
  • MME mobility management entity
  • S-GW serving gateway
  • eNBs e.g., a packet data convergence protocol (GPRS) network
  • the eNB operations module 182 may also generate a RRC connection reconfiguration message to be signaled to the UE 102.
  • the encoder 109 may encode transmission data 105 and/or other information 101 provided by the eNB operations module 182. For example, encoding the data 105 and/or other information 101 may involve error detection and/or correction coding, mapping data to space, time and/or frequency resources for transmission, multiplexing, etc.
  • the encoder 109 may provide encoded data 111 to the modulator 113.
  • the transmission data 105 may include network data to be relayed to the UE 102.
  • the eNB operations module 182 may provide information 103 to the modulator 113.
  • This information 103 may include instructions for the modulator 113.
  • the eNB operations module 182 may inform the modulator 113 of a modulation type (e.g., constellation mapping) to be used for transmissions to the UE(s) 102.
  • the modulator 113 may modulate the encoded data 111 to provide one or more modulated signals 115 to the one or more transmitters 117.
  • the eNB operations module 182 may provide information 192 to the one or more transmitters 117.
  • This information 192 may include instructions for the one or more transmitters 117.
  • the eNB operations module 182 may instruct the one or more transmitters 117 when to (or when not to) transmit a signal to the UE(s) 102.
  • the one or more transmitters 117 may upconvert and transmit the modulated signal(s) 115 to one or more UEs 102.
  • one or more of the elements or parts thereof included in the eNB(s) 160 and UE(s) 102 may be implemented in hardware.
  • one or more of these elements or parts thereof may be implemented as a chip, circuitry or hardware components, etc.
  • one or more of the functions or methods described herein may be implemented in and/or performed using hardware.
  • one or more of the methods described herein may be implemented in and/or realized using a chipset, an application-specific integrated circuit (ASIC), a large-scale integrated circuit (LSI) or integrated circuit, etc.
  • ASIC application-specific integrated circuit
  • LSI large-scale integrated circuit
  • Figure 2 is a flow diagram illustrating one implementation of a method 200 for performing a scheduling request procedure by a UE 102.
  • the UE 102 may 202 receive one or more NAS messages from the MME via an eNB 160 to configure a UE specific paging cycle.
  • the RRC layer of the UE 102 may 204 be indicated by upper layers of the UE (e.g., NAS layer of the UE) that a UE specific paging cycle is configured.
  • the UE 102 may 206 receive System Information Block Type2 (SIB2) in system information in a cell. Upon receiving SIB2, the UE 102 may apply the configuration (e.g., default paging cycle and nB) included in the radioResourceConfigCommon included in the SIB2.
  • SIB2 System Information Block Type2
  • the UE 102 may 206 receive a first configuration related to the H-SFN in broadcasted system information (MIB, SIB1 or SIB2 etc).
  • the first configuration may be H-SFN itself.
  • the first configuration may be an indication whether H-SFN is used in the cell.
  • the first configuration may be an indication whether a paging cycle for extended DRX is used in the cell.
  • the UE 102 may 208 determine a paging cycle. In a case that upper layers indicate that a UE specific paging cycle is configured, the UE 102 may determine whether a UE specific paging cycle or a default Paging Cycle is applied. In a case that upper layers don’t indicate that a UE specific paging cycle is configured the UE 102 may apply a default paging cycle (defaultPagingCycle).
  • the UE 102 may apply the (UE specific) paging cycle regardless of the default Paging Cycle (defaultPagingCycle).
  • the UE 102 may apply the longest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the UE 102 may apply the shortest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the UE 102 may apply the (UE specific) paging cycle regardless of the default Paging Cycle (defaultPagingCycle).
  • the UE 102 may apply the longest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the UE 102 may apply the shortest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the UE 102 may determine a paging cycle based on whether the UE specific paging cycle is for extended DRX or not and/or whether the first configuration is broadcasted or not.
  • the UE 102 may 210 receive a paging message based on the paging cycle.
  • MIB Master Information Block
  • SIBs System Information Blocks
  • MIBbis MIBbis
  • SIB1bis SIB2bis
  • SIB2bis parameters in radio resource configuration common in SIB2 above may be provided in SIB2bis.
  • FIG. 3 is a flow diagram illustrating one implementation of a method 300 for performing a paging procedure by an eNB 160.
  • the eNB 160 may 302 receive one or more messages from the MME to configure a UE specific paging cycle for extended DRX.
  • the eNB 160 may 304 broadcast System Information Block Type2 (SIB2) in system information in a cell.
  • SIB2 System Information Block Type2
  • the eNB 160 may 304 transmit a first configuration related to the H-SFN in broadcasted system information (MIB, SIB1 or SIB2 etc).
  • the first configuration may be H-SFN itself.
  • the first configuration may be an indication whether H-SFN is used in the cell.
  • the first configuration may be an indication whether a paging cycle for extended DRX is used in the cell.
  • the eNB 160 may determine whether the first configuration is transmitted based on the messages from the MME.
  • the eNB 160 may 306 receive a paging request for a certain UE from the MME.
  • the paging request may include the UE specific paging cycle and/or whether the UE specific paging cycle is for extended DRX.
  • the eNB 160 determine a paging cycle for the UE based on the UE specific paging cycle, whether the UE specific paging cycle is for extended DRX, and/or the first configuration.
  • the eNB 160 may 308 determine a paging cycle. In a case that the MME indicates that a UE specific paging cycle is configured, the eNB 160 may determine whether a UE specific paging cycle or a default Paging Cycle is applied. In a case that the MME doesn’t indicate that a UE specific paging cycle is configured, the eNB 160 may apply a default paging cycle (defaultPagingCycle).
  • defaultPagingCycle default paging cycle
  • the eNB 160 may apply the (UE specific) paging cycle regardless of the default Paging Cycle (defaultPagingCycle).
  • the eNB 160 may apply the longest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the eNB 160 may apply the shortest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the eNB 160 may apply the (UE specific) paging cycle regardless of the default Paging Cycle (defaultPagingCycle).
  • the eNB 160 may apply the longest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the eNB 160 may apply the shortest of the (UE specific) paging cycle and the default Paging Cycle (defaultPagingCycle) included in the radioResourceConfigCommon.
  • the eNB 160 may determine a paging cycle based on whether the UE specific paging cycle is for extended DRX or not and/or whether the first configuration is broadcasted or not.
  • the eNB 160 may 310 transmit a paging message based on the paging cycle.
  • FIG. 4 illustrates various components that may be utilized in a UE 1302.
  • the UE 1302 described in connection with Figure 4 may be implemented in accordance with the UE 102 described in connection with Figure 1.
  • the UE 1302 includes a processor 1381 that controls operation of the UE 1302.
  • the processor 1381 may also be referred to as a central processing unit (CPU).
  • Memory 1387 which may include read-only memory (ROM), random access memory (RAM), a combination of the two or any type of device that may store information, provides instructions 1383a and data 1385a to the processor 1381.
  • a portion of the memory 1387 may also include non-volatile random access memory (NVRAM).
  • Instructions 1383b and data 1385b may also reside in the processor 1381.
  • Instructions 1383b and/or data 1385b loaded into the processor 1381 may also include instructions 1383a and/or data 1385a from memory 1387 that were loaded for execution or processing by the processor 1381.
  • the instructions 1383b may be executed by the processor 1381 to implement one or more of the methods 200 described above.
  • the UE 1302 may also include a housing that contains one or more transmitters 1358 and one or more receivers 1320 to allow transmission and reception of data.
  • the transmitter(s) 1358 and receiver(s) 1320 may be combined into one or more transceivers 1318.
  • One or more antennas 1322a-n are attached to the housing and electrically coupled to the transceiver 1318.
  • the various components of the UE 1302 are coupled together by a bus system 1389, which may include a power bus, a control signal bus and a status signal bus, in addition to a data bus. However, for the sake of clarity, the various buses are illustrated in Figure 4 as the bus system 1389.
  • the UE 1302 may also include a digital signal processor (DSP) 1391 for use in processing signals.
  • DSP digital signal processor
  • the UE 1302 may also include a communications interface 1393 that provides user access to the functions of the UE 1302.
  • the UE 1302 illustrated in Figure 4 is a functional block diagram rather than a listing of specific components.
  • FIG. 5 illustrates various components that may be utilized in an eNB 1460.
  • the eNB 1460 described in connection with Figure 5 may be implemented in accordance with the eNB 160 described in connection with Figure 1.
  • the eNB 1460 includes a processor 1481 that controls operation of the eNB 1460.
  • the processor 1481 may also be referred to as a central processing unit (CPU).
  • Memory 1487 which may include read-only memory (ROM), random access memory (RAM), a combination of the two or any type of device that may store information, provides instructions 1483a and data 1485a to the processor 1481.
  • a portion of the memory 1487 may also include nonvolatile random access memory (NVRAM).
  • Instructions 1483b and data 1485b may also reside in the processor 1481.
  • Instructions 1483b and/or data 1485b loaded into the processor 1481 may also include instructions 1483a and/or data 1485a from memory 1487 that were loaded for execution or processing by the processor 1481.
  • the instructions 1483b may be executed by the processor 1481 to implement one or more of the methods 300 described above.
  • the eNB 1460 may also include a housing that contains one or more transmitters 1417 and one or more receivers 1478 to allow transmission and reception of data.
  • the transmitter(s) 1417 and receiver(s) 1478 may be combined into one or more transceivers 1476.
  • One or more antennas 1480a-n are attached to the housing and electrically coupled to the transceiver 1476.
  • the various components of the eNB 1460 are coupled together by a bus system 1489, which may include a power bus, a control signal bus and a status signal bus, in addition to a data bus. However, for the sake of clarity, the various buses are illustrated in Figure 5 as the bus system 1489.
  • the eNB 1460 may also include a digital signal processor (DSP) 1491 for use in processing signals.
  • DSP digital signal processor
  • the eNB 1460 may also include a communications interface 1493 that provides user access to the functions of the eNB 1460.
  • the eNB 1460 illustrated in Figure 5 is a functional block diagram rather than a listing of specific components.
  • computer-readable medium refers to any available medium that can be accessed by a computer or a processor.
  • computer-readable medium may denote a computer- and/or processor-readable medium that is nontransitory and tangible.
  • a computer-readable or processor-readable medium may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer or processor.
  • Disk and disc includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray (registered trademark) disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.
  • one or more of the methods described herein may be implemented in and/or performed using hardware.
  • one or more of the methods described herein may be implemented in and/or realized using a chipset, an application-specific integrated circuit (ASIC), a large-scale integrated circuit (LSI) or integrated circuit, etc.
  • ASIC application-specific integrated circuit
  • LSI large-scale integrated circuit
  • Each of the methods disclosed herein comprises one or more steps or actions for achieving the described method.
  • the method steps and/or actions may be interchanged with one another and/or combined into a single step without departing from the scope of the claims.
  • the order and/or use of specific steps and/or actions may be modified without departing from the scope of the claims.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé réalisé par un équipement d'utilisateur (UE). Le procédé peut comprendre la détermination d'un cycle de radiomessagerie et la réception, depuis un nœud B évolué (eNB), d'un message de radiomessagerie sur la base du cycle de radiomessagerie. Si une première configuration est comprise dans des informations système dans une cellule et que des couches supérieures de l'UE indiquent que le cycle de radiomessagerie spécifique à l'UE pour une réception discontinue (DRX) étendue est configuré, le cycle de radiomessagerie spécifique à l'UE est utilisé.
PCT/JP2016/003840 2015-09-21 2016-08-23 Systèmes et procédés de commande de radiomessagerie Ceased WO2017051502A1 (fr)

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CN111417174A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种节电处理方法及设备
US11985728B2 (en) 2019-01-28 2024-05-14 Qualcomm Incorporated User equipment specific discontinuous reception cycle
CN113632586A (zh) * 2019-01-28 2021-11-09 高通股份有限公司 特定于用户设备的不连续接收周期
CN113632586B (zh) * 2019-01-28 2024-04-26 高通股份有限公司 特定于用户设备的不连续接收周期
WO2020220787A1 (fr) * 2019-04-30 2020-11-05 华为技术有限公司 Procédé, appareil et système de communication
US12120638B2 (en) * 2019-08-01 2024-10-15 Telefonaktiebolaget Lm Ericsson (Publ) User equipment (UE) grouping criteria and mechanisms for false paging reduction
US20220279479A1 (en) * 2019-08-01 2022-09-01 Telefonaktiebolaget Lm Ericsson (Publ) User Equipment (UE) Grouping Criteria and Mechanisms for False Paging Reduction
EP4104562A4 (fr) * 2020-04-06 2023-08-16 Samsung Electronics Co., Ltd. Procédé et appareil de radiomessagerie et d'émission et de réception d'informations de système (si)
WO2021206425A1 (fr) 2020-04-06 2021-10-14 Samsung Electronics Co., Ltd. Procédé et appareil de radiomessagerie et d'émission et de réception d'informations de système (si)
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CN111698775B (zh) * 2020-06-01 2022-10-18 Oppo广东移动通信有限公司 基于双卡的通信方法及相关装置
CN111698775A (zh) * 2020-06-01 2020-09-22 Oppo广东移动通信有限公司 基于双卡的通信方法及相关装置
CN115088309A (zh) * 2021-01-14 2022-09-20 北京小米移动软件有限公司 信息传输方法、装置、通信设备和存储介质
CN115088386A (zh) * 2021-01-14 2022-09-20 北京小米移动软件有限公司 信息传输方法、装置、通信设备和存储介质
CN115088309B (zh) * 2021-01-14 2025-02-18 北京小米移动软件有限公司 信息传输方法、装置、通信设备和存储介质

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