WO2017049601A1 - Procédé, système et appareil - Google Patents

Procédé, système et appareil Download PDF

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Publication number
WO2017049601A1
WO2017049601A1 PCT/CN2015/090759 CN2015090759W WO2017049601A1 WO 2017049601 A1 WO2017049601 A1 WO 2017049601A1 CN 2015090759 W CN2015090759 W CN 2015090759W WO 2017049601 A1 WO2017049601 A1 WO 2017049601A1
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WIPO (PCT)
Prior art keywords
system information
indication
information
discontinuous reception
received
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PCT/CN2015/090759
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English (en)
Inventor
Yanji Zhang
Tero Henttonen
Chunli Wu
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Nokia Solutions And Networks Oy
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Priority to PCT/CN2015/090759 priority Critical patent/WO2017049601A1/fr
Publication of WO2017049601A1 publication Critical patent/WO2017049601A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • 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
    • H04W68/005—Transmission of information for alerting of incoming communication

Definitions

  • the present application relates to a method, apparatus, system and computer program and in particular but not exclusively to system information updates for extended DRX (discontinuous reception) .
  • a communication system can be seen as a facility that enables communication sessions between two or more entities such as user terminals, base stations and/or other nodes by providing carriers between the various entities involved in the communications path.
  • a communication system can be provided for example by means of a communication network and one or more compatible communication devices.
  • the communication sessions may comprise, for example, communication of data for carrying communications such as voice, electronic mail (email) , text message, multimedia and/or content data and so on.
  • Non-limiting examples of services provided comprise two-way or multi-way calls, data communication or multimedia services and access to a data network system, such as the Internet.
  • wireless communication system at least a part of a communication session between at least two stations occurs over a wireless link.
  • wireless systems comprise public land mobile networks (PLMN) , satellite based communication systems and different wireless local networks, for example wireless local area networks (WLAN) .
  • PLMN public land mobile networks
  • WLAN wireless local area networks
  • the wireless systems can typically be divided into cells, and are therefore often referred to as cellular systems.
  • a user can access the communication system by means of an appropriate communication device or terminal.
  • a communication device of a user is often referred to as user equipment (UE) .
  • UE user equipment
  • a communication device is provided with an appropriate signal receiving and transmitting apparatus for enabling communications, for example enabling access to a communication network or communications directly with other users.
  • the communication device may access a carrier provided by a station, for example a base station of a cell, and transmit and/or receive communications on the carrier.
  • the communication system and associated devices typically operate in accordance with a given standard or specification which sets out what the various entities associated with the system are permitted to do and how that should be achieved. Communication protocols and/or parameters which shall be used for the connection are also typically defined.
  • An example of attempts to solve the problems associated with the increased demands for capacity is an architecture that is known as the long-term evolution (LTE) of the Universal Mobile Telecommunications System (UMTS) radio-access technology.
  • LTE long-term evolution
  • UMTS Universal Mobile Telecommunications System
  • 3GPP 3rd Generation Partnership Project
  • the various development stages of the 3GPP LTE specifications are referred to as releases.
  • LTE-A LTE-Advanced
  • 5G network Another proposed communication system is a 5G network
  • a method comprising receiving system information at a user device capable of operating using a discontinuous reception period, the system information comprising at least one system information block and an information element indicating one of a set of values and determining whether to read at least one system information block of the system information in dependence on at least one of determining whether the length of the discontinuous reception period is greater than or equal to a first threshold value and comparing a received value indicated by the information element to a stored value indicated by the information element and if the received value is the same as the stored value, determining if information has been received at the user device, the information comprising an indication of wrap around of the set of values.
  • a first system information block may comprise the information element.
  • a first system information block may comprise the information comprising an indication of wrap around of the set of values.
  • the method may comprise determining if the length of the discontinuous reception period is greater than or equal to the first threshold value, and, if so, reading each system information block of the system information.
  • the method may comprise determining if the length of the discontinuous reception period is less than the first threshold value, and, if so, reading a first system information block and comparing a received value indicated by the information element to a stored value indicated by the information element.
  • the method may comprise reading a first system information block and comparing a received value indicated by the information element to a stored value indicated by the information element.
  • the method may comprise, if the received value is different from the stored value, reading each system information block of the system information.
  • the method may comprise, if the received value is the same as the stored value, determining if information comprising an indication of wrap around of the set of values has been received at the user device and if so, reading each system information block of the system information.
  • the indication may comprise an indication of the time period since the last wrap around occurred.
  • the indication may comprise an indication of whether wrap around occurred during a first time period.
  • the first time period may be the maximum length of discontinuous reception period.
  • the indication may comprise a bit.
  • the indication may comprise a N-bit indicator.
  • Code of the N-bit may indicate the time period since the last wrap around.
  • the method may comprise, if the time period since the last wrap around is less than the length of the discontinuous reception period, reading each system information block of the system information.
  • the first threshold value may be dependent on the length of a modification period and/or the number of the set of values.
  • an apparatus comprising means for receiving system information at a user device capable of operating using a discontinuous reception period, the system information comprising at least one system information block and an information element indicating one of a set of values and means for determining whether to read at least one system information block of the system information in dependence on at least one of determining whether the length of the discontinuous reception period is greater than or equal to a first threshold value and comparing a received value indicated by the information element to a stored value indicated by the information element and if the received value is the same as the stored value, determining if information has been received at the user device, the information comprising an indication of wrap around of the set of values.
  • a first system information block may comprise the information element.
  • a first system information block may comprise the information comprising an indication of wrap around of the set of values.
  • the apparatus may comprise means for determining if the length of the discontinuous reception period is greater than or equal to the first threshold value, and means for, if so, reading each system information block of the system information.
  • the apparatus may comprise means for determining if the length of the discontinuous reception period is less than the first threshold value, and means for, if so, reading a first system information block and comparing a received value indicated by the information element to a stored value indicated by the information element.
  • the apparatus may comprise means for reading a first system information block and means for comparing a received value indicated by the information element to a stored value indicated by the information element.
  • the apparatus may comprise means for, if the received value is different from the stored value, reading each system information block of the system information.
  • the apparatus may comprise means for, if the received value is the same as the stored value, determining if information comprising an indication of wrap around of the set of values has been received at the user device and means for if so, reading each system information block of the system information.
  • the indication may comprise an indication of the time period since the last wrap around occurred.
  • the indication may comprise an indication of whether wrap around occurred during a first time period.
  • the first time period may be the maximum length of discontinuous reception period.
  • the indication may comprise a bit.
  • the indication may comprise a N-bit indicator.
  • Code of the N-bit may indicate the time period since the last wrap around.
  • the apparatus may comprise means for, if the time period since the last wrap around is less than the length of the discontinuous reception period, reading each system information block of the system information.
  • the first threshold value may be dependent on the length of a modification period and/or the number of the set of values.
  • an apparatus comprising at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to receive system information at a user device capable of operating using a discontinuous reception period, the system information comprising at least one system information block and an information element indicating one of a set of values and
  • a first system information block may comprise the information element.
  • a first system information block may comprise the information comprising an indication of wrap around of the set of values.
  • the apparatus may be configured to determine if the length of the discontinuous reception period is greater than or equal to the first threshold value, and, if so, read each system information block of the system information.
  • the apparatus may be configured to determine if the length of the discontinuous reception period is less than the first threshold value, and, if so, read a first system information block and compare a received value indicated by the information element to a stored value indicated by the information element.
  • the apparatus may be configured to read a first system information block and compare a received value indicated by the information element to a stored value indicated by the information element.
  • the apparatus may be configured to, if the received value is different from the stored value, read each system information block of the system information.
  • the apparatus may be configured to, if the received value is the same as the stored value, determine if information comprising an indication of wrap around of the set of values has been received at the user device and, if so, read each system information block of the system information.
  • the indication may comprise an indication of the time period since the last wrap around occurred.
  • the indication may comprise an indication of whether wrap around occurred during a first time period.
  • the first time period may be the maximum length of discontinuous reception period.
  • the indication may comprise a bit.
  • the indication may comprise a N-bit indicator.
  • Code of the N-bit may indicate the time period since the last wrap around.
  • the apparatus may be configured to, if the time period since the last wrap around is less than the length of the discontinuous reception period, read each system information block of the system information.
  • the first threshold value is dependent on the length of a modification period and/or the number of the set of values.
  • a computer program embodied on a non-transitory computer-readable storage medium, the computer program comprising program code for controlling a process to execute a process, the process comprising receiving system information at a user device capable of operating using a discontinuous reception period, the system information comprising at least one system information block and an information element indicating one of a set of values and determining whether to read at least one system information block of the system information in dependence on at least one of determining whether the length of the discontinuous reception period is greater than or equal to a first threshold value and comparing a received value indicated by the information element to a stored value indicated by the information element and if the received value is the same as the stored value, determining if information has been received at the user device, the information comprising an indication of wrap around of the set of values.
  • a first system information block may comprise the information element.
  • a first system information block may comprise the information comprising an indication of wrap around of the set of values.
  • the process may comprise determining if the length of the discontinuous reception period is greater than or equal to the first threshold value, and, if so, reading each system information block of the system information.
  • the process may comprise determining if the length of the discontinuous reception period is less than the first threshold value, and, if so, reading a first system information block and comparing a received value indicated by the information element to a stored value indicated by the information element.
  • the process may comprise reading a first system information block and comparing a received value indicated by the information element to a stored value indicated by the information element.
  • the process may comprise, if the received value is different from the stored value, reading each system information block of the system information.
  • the process may comprise, if the received value is the same as the stored value, determining if information comprising an indication of wrap around of the set of values has been received at the user device and if so, reading each system information block of the system information.
  • the indication may comprise an indication of the time period since the last wrap around occurred.
  • the indication may comprise an indication of whether wrap around occurred during a first time period.
  • the first time period may be the maximum length of discontinuous reception period.
  • the indication may comprise a bit.
  • the indication may comprise a N-bit indicator.
  • Code of the N-bit may indicate the time period since the last wrap around.
  • the process may comprise, if the time period since the last wrap around is less than the length of the discontinuous reception period, reading each system information block of the system information.
  • the first threshold value may be dependent on the length of a modification period and/or the number of the set of values.
  • a computer program product for a computer comprising software code portions for performing the steps the method of the first aspect when said product is run on the computer.
  • Figure 1 shows a schematic diagram of an example communication system comprising a base station and a plurality of communication devices
  • Figure 2 shows a schematic diagram of an example mobile communication device
  • Figure 3 shows a schematic diagram of modification periods in a broadcast control channel
  • Figure 4 shows a flowchart of an example method of determining system information change
  • Figure 5 shows a schematic diagram of an example control apparatus
  • a wireless communication system 100 such as that shown in figure 1, mobile communication devices or user equipment (UE) 102, 104, 105 are provided wireless access via at least one base station or similar wireless transmitting and/or receiving node or point.
  • Base stations are typically controlled by at least one appropriate controller apparatus, so as to enable operation thereof and management of mobile communication devices in communication with the base stations.
  • the controller apparatus may be located in a radio access network (e.g. wireless communication system 100) or in a core network (CN) (not shown) and may be implemented as one central apparatus or its functionality may be distributed over several apparatus.
  • the controller apparatus may be part of the base station and/or provided by a separate entity such as a Radio Network Controller.
  • control apparatus 108 and 109 are shown to control the respective macro level base stations 106 and 107.
  • the control apparatus of a base station can be interconnected with other control entities.
  • the control apparatus is typically provided with memory capacity and at least one data processor.
  • the control apparatus and functions may be distributed between a plurality of control units. In some systems, the control apparatus may additionally or alternatively be provided in a radio network controller.
  • LTE systems may however be considered to have a so-called “flat” architecture, without the provision of RNCs; rather the (e) NB is in communication with a system architecture evolution gateway (SAE-GW) and a mobility management entity (MME) , which entities may also be pooled meaning that a plurality of these nodes may serve a plurality (set) of (e) NBs.
  • SAE-GW is a “high-level” user plane core network element in LTE, which may consist of the S-GW and the P-GW (serving gateway and packet data network gateway, respectively) .
  • the functionalities of the S-GW and P-GW are separated and they are not required to be co-located.
  • base stations 106 and 107 are shown as connected to a wider communications network 113 via gateway 112.
  • a further gateway function may be provided to connect to another network.
  • the smaller base stations 116, 118 and 120 may also be connected to the network 113, for example by a separate gateway function and/or via the controllers of the macro level stations.
  • the base stations 116, 118 and 120 may be pico or femto level base stations or the like. In the example, stations 116 and 118 are connected via a gateway 111 whilst station 120 connects via the controller apparatus 108. In some embodiments, the smaller stations may not be provided. Smaller base stations 116, 118 and 120 may be part of a second network, for example WLAN and may be WLAN APs.
  • a possible mobile communication device will now be described in more detail with reference to Figure 2 showing a schematic, partially sectioned view of a communication device 200.
  • a communication device is often referred to as user equipment (UE) or terminal.
  • An appropriate mobile communication device may be provided by any device capable of sending and receiving radio signals.
  • Non-limiting examples comprise a mobile station (MS) or mobile device such as a mobile phone or what is known as a’ smart phone’ , a computer provided with a wireless interface card or other wireless interface facility (e.g., USB dongle) , personal data assistant (PDA) or a tablet provided with wireless communication capabilities, or any combinations of these or the like.
  • MS mobile station
  • PDA personal data assistant
  • a mobile communication device may provide, for example, communication of data for carrying communications such as voice, electronic mail (email) , text message, multimedia and so on. Users may thus be offered and provided numerous services via their communication devices. Non-limiting examples of these services comprise two-way or multi-way calls, data communication or multimedia services or simply an access to a data communications network system, such as the Internet. Users may also be provided broadcast or multicast data. Non-limiting examples of the content comprise downloads, television and radio programs, videos, advertisements, various alerts and other information.
  • the mobile device 200 may receive signals over an air or radio interface 207 via appropriate apparatus for receiving and may transmit signals via appropriate apparatus for transmitting radio signals.
  • transceiver apparatus is designated schematically by block 206.
  • the transceiver apparatus 206 may be provided for example by means of a radio part and associated antenna arrangement.
  • the antenna arrangement may be arranged internally or externally to the mobile device.
  • a mobile device is typically provided with at least one data processing entity 201, at least one memory 202 and other possible components 203 for use in software and hardware aided execution of tasks it is designed to perform, including control of access to and communications with access systems and other communication devices.
  • the data processing, storage and other relevant control apparatus can be provided on an appropriate circuit board and/or in chipsets. This feature is denoted by reference 204.
  • the user may control the operation of the mobile device by means of a suitable user interface such as key pad 205, voice commands, touch sensitive screen or pad, combinations thereof or the like.
  • a display 208, a speaker and a microphone can be also provided.
  • a mobile communication device may comprise appropriate connectors (either wired or wireless) to other devices and/or for connecting external accessories, for example hands-free equipment, thereto.
  • the communication devices 102, 104, 105 may access the communication system based on various access techniques, such as code division multiple access (CDMA) , or wideband CDMA (WCDMA) .
  • CDMA code division multiple access
  • WCDMA wideband CDMA
  • Other non-limiting examples comprise time division multiple access (TDMA) , frequency division multiple access (FDMA) and various schemes thereof such as the interleaved frequency division multiple access (IFDMA) , single carrier frequency division multiple access (SC-FDMA) and orthogonal frequency division multiple access (OFDMA) , space division multiple access (SDMA) and so on.
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • IFDMA interleaved frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SDMA space division multiple access
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • LTE-A LTE Advanced
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • Base stations of such systems are known as evolved or enhanced Node Bs (eNBs) and provide E-UTRAN features such as user plane Packet Data Convergence/Radio Link Control/Medium Access Control/Physical layer protocol (PDCP/RLC/MAC/PHY) and control plane Radio Resource Control (RRC) protocol terminations towards the communication devices.
  • E-UTRAN features such as user plane Packet Data Convergence/Radio Link Control/Medium Access Control/Physical layer protocol (PDCP/RLC/MAC/PHY) and control plane Radio Resource Control (RRC) protocol terminations towards the communication devices.
  • RRC Radio Resource Control
  • Other examples of radio access system comprise those provided by base stations of systems that are based on technologies such as wireless local area network (WLAN) and/or WiMax (Worldwide Interoperability for Microwave Access) .
  • WLAN wireless local area network
  • WiMax Worldwide Interoperability for Microwave Access
  • SI System information
  • SIB system information blocks
  • SI system information blocks
  • SI system information
  • a concept referred to as the modification period concept may be used.
  • SI other than, for example, earthquake and tsunami warning systems (ETWS) , commercial mobile alert systems (CMAS) and extended access class barring (EAB) parameters
  • EWS earthquake and tsunami warning systems
  • CMAS commercial mobile alert systems
  • EAB extended access class barring
  • Figure 3 shows a schematic diagram of modification periods for a broadcast control channel (BCCH) .
  • a change notification is provided by an access point of a communication network to the UEs being served by the access point.
  • the UEs Upon receiving the notification the UEs are made aware of the change that occurs at the next modification period boundary.
  • the second period (i.e. after the modification period boundary between the first and second periods) , the updated information is provided by the access point in the system information.
  • the UEs having been made aware of the change via the notification in the first period, will then re-acquire the new system information as soon as possible once the second period starts.
  • SI change may be notified to a user device, or UE, as follows:
  • a paging message may be used to inform UEs in RRC_IDLE and UEs in RRC_CONNECTED about a system information change. If the UE receives a paging message including an indication of SI change, e.g. a Paging message including the information element systemlnfoModification, the UE knows that the system information will change at the next modification period boundary.
  • SI change e.g. a Paging message including the information element systemlnfoModification
  • a system information block may include a value tag or information element, e.g. information element systemlnfoValueTag, that indicates a value to the current set of system information blocks. Since the value tag is part of the system information, the UE will store this value and if a change has occurred in the SI messages. UEs may use the stored value tag, e.g. upon return from being out of coverage, to verify if the previously stored SI messages are still valid. If the value tag differs from the stored value, the UE will know that the previously stored SI messages are no longer valid and will re-acquire all of the system information.
  • SIB system information block
  • SIB e.g. systemlnfoValueTag in SystemlnformationBIockType1
  • RAN enhancements for extended discontinuous reception (eDRX) in LTE have been discussed, with an objective to extend DRX, i.e. the discontinuous reception period, for UEs in IDLE mode and CONNECTED mode for UE power saving.
  • the length of eDRX may be extended to 10.24 second for RRC_CONNECTED, and will be extended beyond 10.24s and may be increased in the order of minutes for RRC_IDLE.
  • these eDRX values are provided as an example and are not intended to be limiting.
  • the UE may miss paging messages containing SI modification notification. Since the value tag in system information block may only have one of a limited set of values (e.g. 32 values currently) , the value tag may wrap- around during DRX due to frequent SI changes so that a UE returning from DRX may see exactly the same value tag as its stored value, despite the SI having changed several times.
  • a limited set of values e.g. 32 values currently
  • the system information may not change frequently, so reading all SIBs in case of a wrap-around may consume a lot of power. Avoiding reading the SIBs when SI hasn’t changed may thus be beneficial.
  • Figure 4 shows a flowchart of an example method of determining system information change and whether to read system information.
  • the method comprises receiving system information at a user device capable of operating using a discontinuous reception period, the system information comprising at least one system information block and an information element indicating one of a set of values.
  • the method comprises determining whether to read at least one system information block of the system information in dependence on determining whether the length of the discontinuous reception period is greater than or equal to a first threshold value and/or in dependence on comparing a received value indicated by the information element to a stored value indicated by the information element and if the received value is the same as the stored value, determining if information has been received at the user device, the information comprising an indication of wrap around of the set of values.
  • the discontinuous reception period may be an extended discontinuous reception period.
  • a first system information block may comprise the information element.
  • the information element may be referred to as valueTag.
  • a first system information block, e.g. SIB1 may comprise the information comprising an indication of wrap around of the set of values.
  • the method may comprise determining whether the length of the discontinuous reception period is greater than or equal to a first threshold value. Determining whether the length of the discontinuous reception period is greater than or equal to a first threshold value may take place at the end of a discontinuous reception period, i.e. when the UE wakes up for paging, or more particularly, enough time before paging to allow time for measurement and SI update.
  • the first threshold value may be dependent on the length of a modification period and/or total number of valueTag values, i.e. the number of the set of values.
  • the first threshold value may be the modification period *total number of valueTag values.
  • the first threshold value may be the modification period * (total number of valueTag values-1 ) .
  • a UE when a UE wakes up from eDRX, it may decide whether to read system information by comparing the configured length of eDRX with modification period *total number of valueTag values (e.g. 32 values currently) .
  • the UE may read each system information block of the system information. For example, if the length of eDRX is larger than or equal to modification period *total number of valueTag values, the UE reads all the SIBs, regardless of the value of the valueTag in SIB1.
  • the UE may read a first information block, e.g. SIB1, and compare a received value indicated by the information element, e.g., value tag value to a stored value, i.e. a value indicated by the information element in a previous modification period.
  • a received value indicated by the information element e.g., value tag value
  • a stored value i.e. a value indicated by the information element in a previous modification period.
  • the UE reads SIB1 and compares the valueTag value with previous stored valueTag value to determine if system information has changed or not.
  • the UE will read other SIBs. That is, if the value tag value is not the same as the stored value, the UE may read each system information block of the system information.
  • the method may comprise reading a first system information block and comparing a received value indicated by the information element to a stored value indicated by the information element. If the received value is the same as the stored value, the method may comprise determining if information comprising an indication of value tag wrap around of the set of values has been received at the user device and if so, reading each system information block of the system information. This may be done whether or not the method comprises determining whether the length of the discontinuous reception period is greater than or equal to a first threshold value, although if the length of the DRX period is less than the first threshold value, no wrap around is able to occur and so no indication will have been received.
  • the UE may check additional indication that tells the time period since last valueTag wrap-around. That is, if the value tag value is the same as the value stored at the UE, the UE may determine if information comprising an indication of wrap around has been received.
  • the SI may contain an indication that tells when valueTag has wrapped around, which allows UE to stop reading rest of the SIBs. If the indication shows that valueTag has not wrapped around during latest UE eDRX period, UE can skip reading the rest of the SIBs if the valueTag has the same value as previously.
  • valueTag has not wrapped around during a pre-defined time period, e.g. 1 day. Alternatively, it could mean UE has to read all SIBs anyway. The presence of the indication could indicate the valueTag wrap-around time period either explicitly or implicitly.
  • the indication could be one bit, implicitly indicating wrap-around during e.g. a predefined eDRX cycle length (or some other time period) , e.g. the maximum eDRX cycle length.
  • the indication may comprise an indication of the time period since the last wrap around occurred.
  • the indication may comprise an indication of whether wrap around occurred during a first time period, e.g. maximum eDRX cycle length.
  • the presence of an indication may imply wrap-around during the latest 1310.72 seconds.
  • the indication could be an indicator that refers to a mapping table, indicating explicitly that wrap-around has happened during the time period defined by the mapping table. If the indicated time period is less than, e.g., the eDRX, the UE reads each system information block of the system information.
  • N-bit indicator indicates whether wrap around occurred during different time periods.
  • a N-bit indicator is used, with each indicating an entry in table.
  • the length of the indicator could even be variable, allowing to indicate the time more granularly if need be.
  • [00] may indicate valueTag wrap-around within latest 10 minutes
  • [11] may indicate wrap-around within latest 60 minutes but no wrap-around within latest 40 min.
  • a method such as that described with reference to Figure 4 may reduce UE power consumption when the length of eDRX is relatively short, e.g. 5min if modification period of the cell is around 10s.
  • the indication of when wrap-around happened could help save UE power consumption by not forcing UE to read all SIBs even though UE has been in eDRX.
  • FIG. 5 shows an example of a control apparatus for a communication system, for example to be coupled to and/or for controlling a station of an access system, such as a RAN node, e.g. a base station, (e) node B or 5G AP, a central unit of a cloud architecture or a node of a core network such as an MME or S-GW, a scheduling entity, or a server or host.
  • a RAN node e.g. a base station
  • node B or 5G AP e.g. a base station
  • a central unit of a cloud architecture or a node of a core network such as an MME or S-GW
  • a scheduling entity or a server or host.
  • the method may be implanted in a single control apparatus or across more than one control apparatus.
  • the control apparatus may be integrated with or external to a node or module of a core network or RAN.
  • base stations comprise a separate control apparatus unit or module.
  • the control apparatus can be another network element such as a radio network controller or a spectrum controller.
  • each base station may have such a control apparatus as well as a control apparatus being provided in a radio network controller.
  • the control apparatus 300 can be arranged to provide control on communications in the service area of the system.
  • the control apparatus 300 comprises at least one memory 301, at least one data processing unit 302, 303 and an input/output interface 304. Via the interface the control apparatus can be coupled to a receiver and a transmitter of the base station.
  • the receiver and/or the transmitter may be implemented as a radio front end or a remote radio head.
  • control apparatus 300 can be configured to execute an appropriate software code to provide the control functions.
  • Control functions may comprise at least one of providing system information at a user device capable of operating using a discontinuous reception period, the system information comprising at least one system information block and an information element indicating one of a set of values and providing information to the user device, the information comprising an indication of wrap around of the set of values.
  • apparatuses may comprise or be coupled to other units or modules etc., such as radio parts or radio heads, used in or for transmission and/or reception.
  • apparatuses have been described as one entity, different modules and memory may be implemented in one or more physical or logical entities.
  • the various embodiments may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects of the invention may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the invention is not limited thereto. While various aspects of the invention may be illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the embodiments of this invention may be implemented by computer software executable by a data processor of the mobile device, such as in the processor entity, or by hardware, or by a combination of software and hardware.
  • Computer software or program also called program product, including software routines, applets and/or macros, may be stored in any apparatus-readable data storage medium and they comprise program instructions to perform particular tasks.
  • a computer program product may comprise one or more computer-executable components which, when the program is run, are configured to carry out embodiments.
  • the one or more computer-executable components may be at least one software code or portions of it.
  • any blocks of the logic flow as in the Figures may represent program steps, or interconnected logic circuits, blocks and functions, or a combination of program steps and logic circuits, blocks and functions.
  • the software may be stored on such physical media as memory chips, or memory blocks implemented within the processor, magnetic media such as hard disk or floppy disks, and optical media such as for example DVD and the data variants thereof, CD.
  • the physical media is a non-transitory media.
  • the memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
  • the data processors may be of any type suitable to the local technical environment, and may comprise one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) , application specific integrated circuits (ASIC) , FPGA, gate level circuits and processors based on multi core processor architecture, as non-limiting examples.
  • Embodiments of the inventions may be practiced in various components such as integrated circuit modules.
  • the design of integrated circuits is by and large a highly automated process.
  • Complex and powerful software tools are available for converting a logic level design into a semiconductor circuit design ready to be etched and formed on a semiconductor substrate.

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

Abstract

L'invention concerne un procédé consistant : à recevoir des informations de système au niveau d'un dispositif utilisateur apte à fonctionner à l'aide d'une période de réception discontinue, les informations de système comprenant au moins un bloc d'informations système et un élément d'informations indiquant l'une parmi un ensemble de valeurs et à déterminer de lire ou non au moins un bloc d'informations de système dans les informations de système en fonction d'au moins une des opérations suivantes consistant à : déterminer si la longueur de la période de réception discontinue est supérieure ou égale à une première valeur seuil, et comparer une valeur reçue indiquée par l'élément d'informations à une valeur stockée indiquée par l'élément d'informations et/ou, si la valeur reçue est la même que la valeur stockée, déterminer si les informations ont été reçues au niveau du dispositif utilisateur, les informations comprenant une indication d'enveloppement de l'ensemble de valeurs.
PCT/CN2015/090759 2015-09-25 2015-09-25 Procédé, système et appareil WO2017049601A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101459935A (zh) * 2007-12-11 2009-06-17 中兴通讯股份有限公司 系统消息更新方法
US20130107778A1 (en) * 2011-10-26 2013-05-02 Lg Electronics Inc. Method and apparatus for updating extended access barring information
WO2015020590A1 (fr) * 2013-08-09 2015-02-12 Telefonaktiebolaget L M Ericsson (Publ) Nœud de réseau et dispositif mobile destinés à être utilisés dans un réseau de communication, procédés de fonctionnement de ceux-ci et produits-programmes informatiques
WO2015020583A1 (fr) * 2013-08-09 2015-02-12 Telefonaktiebolaget L M Ericsson (Publ) Diffusion d'informations de système pour une communication du type machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101459935A (zh) * 2007-12-11 2009-06-17 中兴通讯股份有限公司 系统消息更新方法
US20130107778A1 (en) * 2011-10-26 2013-05-02 Lg Electronics Inc. Method and apparatus for updating extended access barring information
WO2015020590A1 (fr) * 2013-08-09 2015-02-12 Telefonaktiebolaget L M Ericsson (Publ) Nœud de réseau et dispositif mobile destinés à être utilisés dans un réseau de communication, procédés de fonctionnement de ceux-ci et produits-programmes informatiques
WO2015020583A1 (fr) * 2013-08-09 2015-02-12 Telefonaktiebolaget L M Ericsson (Publ) Diffusion d'informations de système pour une communication du type machine

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