WO2018063080A1 - Indication de la bande passante d'une transmission multidiffusion - Google Patents

Indication de la bande passante d'une transmission multidiffusion Download PDF

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Publication number
WO2018063080A1
WO2018063080A1 PCT/SE2017/050956 SE2017050956W WO2018063080A1 WO 2018063080 A1 WO2018063080 A1 WO 2018063080A1 SE 2017050956 W SE2017050956 W SE 2017050956W WO 2018063080 A1 WO2018063080 A1 WO 2018063080A1
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WIPO (PCT)
Prior art keywords
bandwidth
message
multicast transmission
wireless device
multicast
Prior art date
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PCT/SE2017/050956
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English (en)
Inventor
Andreas HÖGLUND
Tuomas TIRRONEN
Johan Bergman
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Telefonaktiebolaget Lm Ericsson (Publ)
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Publication of WO2018063080A1 publication Critical patent/WO2018063080A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • BACKGROUND Machine type communication are about providing connectivity for devices which communicate without human interaction. It is predicted MTC will increase the number of connections exponentially, which is significantly more than the increase of human subscriptions and the number of fixed connections; this is sometimes referred to as 'the networked society'. Because of the different nature of MTC, the requirements are also different from those of human oriented phone traffic. Wireless devices, WD, capable or intended to be used for MTC need to have low cost, which is achieved by low WD complexity and reduced capabilities, for example one receiving antenna, a narrow device bandwidth smaller than the system bandwidth, etc. The power consumption at the WD should further be low in order to prolong battery life such that interactive battery charging is not required, preferably throughout the life span of the wireless device. To be able to reach devices in challenging location, e.g. basements, it is also desirable to enhance coverage in comparison to normal systems.
  • MTC Machine type communication
  • eMTC enhanced MTC
  • CE coverage enhancements
  • TTI transmission time interval
  • RA random access
  • CE- levels e.g. 4 different PRACH configurations with different repetition levels.
  • dedicated transmissions in for example RRC Connected mode, it has been agreed that the repetition level will be up to the network to decide. Further it has been agreed that a WD should not report any change in their CE level since this would generate a lot of unnecessary signaling.
  • Rel-12 a lower complexity (LC) WD category (Cat-0) was introduced to support lower manufacturing costs for MTC capable WDs.
  • Rel-13 further complexity reductions are being introduced where the largest change is a reduced device bandwidth to 6 PRBs or 1 .4 MHz. This means that some legacy channels like the downlink control channel, PDCCH, which spans over the entire system bandwidth, cannot be received.
  • PDCCH which spans over the entire system bandwidth
  • the working assumption for these low complexity WDs is to replace PDCCH with an updated version of EPDCCH transmitted only within 6 PRBs (referred to as M-PDCCH).
  • M-PDCCH updated version of EPDCCH transmitted only within 6 PRBs
  • the working assumption is to have cross-subframe scheduling. That is, a transmission is first scheduled by the network to use repetitions on E-PDCCH and then the repetitions, as transmitted by the WD, of the actual data transmission are carried out after the final transmission of the E-PDCCH.
  • SC-PtM single-cell point-to-multipoint
  • This feature provides broadcast of the same user-plane data to several UEs in a cell with a common RNTI Radio Network Temporary Identifier, (unlike MBSFN which has synchronized broadcast over multiple cells).
  • SC-PtM is configured via a new system information block, SIB20, and uses logical channels SC-MCCH for control signaling and SC-MTCH for data transmission (both SC-MCCH and SC-MTCH logical channels are mapped to the DL-SCH transport channel which in turn is mapped to the PDSCH physical channel).
  • Multicast and broadcast entail different alternatives on how multiple devices could be addressed at the same time. For example, one message transmitted by a network equipment 900 may be received and/or used by a plurality of WDs. However, there is a need to make further improvements with respect to how multicast or broadcast is to work efficiently in scenarios with, for example, a large amount of WDs.
  • An object of the certain present embodiments of the invention is to solve, or at least mitigate, these problems in the art, and thus to provide improved methods performed by a network equipment transmitting a multicast transmission and/or a wireless device receiving a multicast transmission.
  • This object may be attained in a first aspect by a method for use in a wireless device for receiving a multicast transmission.
  • the method comprises determining a bandwidth of a multicast transmission based on a message indicating the bandwidth of the multicast transmission, the message being received from a network equipment and wherein the message is a broadcast message; the method further comprises receiving the multicast transmission within the determined bandwidth.
  • This object may be attained in a second aspect by a method for a use in a network equipment for transmitting a multicast transmission.
  • the method comprises broadcasting a message indicating a bandwidth of the multicast transmission to a wireless device and transmitting the multicast transmission within the bandwidth.
  • a wireless device configured to receive a multicast transmission and wherein the wireless device comprises processing circuitry and radio front end circuitry.
  • the wireless device is configured to determine a bandwidth of the multicast transmission based on a message indicating a bandwidth of the multicast transmission and wherein the message is a broadcast message received from a network equipment and configured to receive the multicast transmission within the determined bandwidth.
  • the network equipment comprises processing circuitry and radio front end circuitry wherein the network equipment is configured to broadcast a message indicating the bandwidth of the multicast transmission to the wireless device and transmit the multicast transmission within the bandwidth.
  • Figure 1 illustrates a flowchart of a proposed signaling method to support multicast from a wireless device perspective according to an embodiment
  • Figure 2 illustrates a flowchart of a proposed signaling method to support multicast from a network equipment perspective according to an embodiment
  • Figure 3 illustrates a flowchart of a proposed signaling method to support multicast from a wireless device perspective according to an embodiment
  • Figure 4 illustrates a flowchart of a proposed signaling method to support multicast from a network equipment perspective according to an embodiment
  • Figure 5 illustrates a flowchart of a proposed signaling method to support multicast from a network equipment perspective according to an embodiment
  • Figure 6 illustrates a flowchart of a proposed signaling method to support multicast from a wireless device perspective according to an embodiment
  • Figure 7 illustrates an example wireless communication network
  • Figure 8 illustrates an example wireless device or UE
  • Figure 9 illustrates an example network equipment.
  • Rel-14 higher data-rates are associated with an increase of UE complexity/cost due to the larger required HARQ buffer or soft buffer size (from the increased transport block size) and the larger device bandwidth (for example, 5 MHz instead of 1 MHz).
  • a new and higher UE category may be introduced for this reason (“Cat-M2").
  • Cat-M2 A Rel-14 Multicast feature may not require any UE complexity increase compared to Rel-13 Cat-M1 and therefore the broadcast transmission bandwidth will be approximately 1 MHz or 6 PRBs.
  • it would be beneficial to make use of the higher data-rates e.g. for large transmissions (e.g. WD Firmware upgrades etc.), or to reduce UE power consumption, latency, or increase capacity.
  • one alternative is to add an indication, e.g. a 'Multicast service' -indication to the MBMS service description to inform UEs whether the particular service is broadcasted in 1 MHz bandwidth (6 PRBs) or e.g. 5 MHz (24 PRBs).
  • 6 PRBs 6 PRBs
  • 5 MHz corresponding to 24 PRBs is an example of a larger bandwidth, and some other bandwidths in MHz or PRBs could be supported in the future as well.
  • the transmission may also utilize 10 HARQ processes and a larger transport block size (TBS). According to some exemplary embodiments also illustrated in Fig 1 and Fig 2, the following is performed.
  • a method for use in a wireless device 800 for receiving a multicast transmission comprises:
  • a method for a use in a base station 900 for transmitting a multicast transmission comprising:
  • a wireless device 800 for receiving a multicast transmission is disclosed.
  • the wireless device 800 comprising
  • - processing circuitry 820 configured to determine a bandwidth of a multicast transmission based on a message indicating a bandwidth of the multicast transmission, and - radio front end circuitry 810 configured to receive the message from a base station and wherein the message is a broadcast message, wherein the radio front end circuitry 810 is further configured to receive the multicast transmission within the determined bandwidth.
  • a wireless device 800 for receiving a multicast transmission comprises processing circuitry 820 and radio front end circuitry 810 wherein the wireless device 800 is configured to
  • radio front end circuitry 810 is further configured to receive the multicast transmission within the determined bandwidth.
  • a base station 900 for transmitting a multicast transmission comprises
  • - processing circuitry 920 configured to determine a bandwidth of the multicast transmission to a wireless device
  • radio front end circuitry 910 configured to broadcast a message indicating the bandwidth of the multicast transmission to the wireless device
  • a base station 900 for transmitting a multicast transmission comprises processing circuitry 920 and radio front end circuitry 910 wherein the base station 900 is configured to determine a bandwidth of the multicast transmission to a wireless device - broadcast a message indicating the bandwidth of the multicast transmission to the wireless device, transmit the multicast transmission within the bandwidth.
  • the bandwidth to be indicated may be configured and/or determined in a network equipment, core network node, multicast server or base station.
  • the network equipment, core network node, multicast server or base station may be comprised in a 3GPP network and exemplary nodes are an BM-SC or an MBMS gateway.
  • the multicast service that may be provided by a network equipment or base station is configured to use a certain bandwidth.
  • the message indicating the bandwidth may in one embodiment be a User Service Description (USD).
  • USD is a higher layer message, which might originate from the BM-SC.
  • the USD message may be defined as in 26.346 v13.5.0.
  • the message indicates an identity. The identity may be used to determine a bandwidth of the multicast transmission.
  • the determination may be performed by mapping the identity to a bandwidth.
  • a Temporary Mobile Group Identity (TMGI) may correspond to a bandwidth of the multicast transmission.
  • TMGI Temporary Mobile Group Identity
  • the use of a specific TMGI may indicate a specific bandwidth.
  • Such mapping could be understood and/or resolved by the network nodes (e.g. BM-SC, MBMS GW, MME, eNB) and also the
  • the message may be a MBMS Bearer Context or a message relating to the MBMS Session start procedure.
  • the massage may in turn indicate a bandwidth of the multicast transmission. This may be achieved by adding a new information field or reuse an existing information field.
  • a message relating to the MBMS Session start procedure may be a message initiating the MBMS session and sent to one or more or all involved network nodes such as the BM-SC, MBMS GW, MME and RAN nodes such as MCE and/or eNB. Initiating may be equivalent to starting a MBMS session.
  • the bandwidth to be indicated may be configured and/or determined in an external network node, such as an application server or GCS (group communication system) AS (application server). Similar details apply as for the 1 st case above.
  • the message indicating a bandwidth of a multicast transmission may be transmitted and/or received over a control channel.
  • the control channel may be a logical channel, such as SC-MCCH.
  • the control channel may comprise a configuration of a data channel, wherein the data channel is the channel on which the data pertaining to the multicast transmission is transmitted and/or received.
  • the SC- MCCH may provide configuration information pertaining to the transmission of a logical channel carrying the multicast data (SC-MTCH). This indication as could be provided per multicast identifier used to identify a multicast service.
  • the message indicating the bandwidth can be implemented as a new parameter, or as a new field or as a flag or reusing an existing filed of the SC-MCCH.
  • the SC-MCCH may be received by all WDs in a cell, regardless of their coverage. That is, broadcasting the message indicating the bandwidth over the SC-MCCH control channel, The SC-
  • MCCH is directed to multiple WDs (all WDs receiving the multicast in the cell)
  • the message indicating the bandwidth may be a system information message.
  • the system information message may be system information block SIB.
  • the system information message may be a master information block, MIB.
  • the indication of the bandwidth may then reside in a broadcasted system information, e.g. in SIB20.
  • multicast is an efficient way of providing the same information to a large number of WDs.
  • One variant is to provide an indication such as a 'Multicast service'-indication, in for example a broadcast service information as to whether a particular service is
  • One variant is to provide an indication, a.k.a. 'Multicast service -indication, in a broadcast service information as to whether a particular service is broadcasted supporting Rel-14 higher data-rates (e.g.
  • the advantage is to, by simple means, enable multicast with higher data-rates, e.g.
  • a broadcasted message refers to a message normally intended for a plurality of WDs. That is, there is no one particular WD that is the intended recipient. This in contrast to a unicast or dedicated message which has a specific WD as recipient.
  • a broadcast message may also be seen as a message that does not contain any information identifying the WD receiving the broadcast message.
  • a broadcast message may thus be seen as a message that does not contain any information identifying a single WD receiving the broadcast message.
  • a broadcast message may thus be a message without a unique identifier identifying a single UE.
  • a broadcast message may be a message which do not contain any information identifying a single or specific WD.
  • multicast and broadcast is used interchangeably.
  • a multicast transmission may identify and/or be directed to a pre-defined group of e.g. WDs 800.
  • the plurality of groups could share an identity and/or address.
  • a message can then be multi-casted to the logical group.
  • a transmission may identify and/or be directed to a group of e.g. WDs.
  • a broadcast message may thus be a message without a unique identifier identifying a single WD but instead a message with an identifier identifying a plurality or group of WDs.
  • a broadcast message may be identified by including an identity of the transmitter, e.g. the network equipment or base station. Alternatively, a broadcast message may be seen as a message sent without identity or address of a WD.
  • a multicast and/or broadcast may be a transmission that is intended or should be receivable by all WD within communication distance of a network equipment or base station.
  • a multicast and/or broadcast may be a transmission to a group of WDs who share a common identifier to receive such transmission.
  • Transmitting and/or receiving a multicast transmission within the bandwidth may comprise using a number of physical resource blocks spanning the bandwidth.
  • the broadcasted message may indicate that e.g. 24 PRBs will be used for the multicast.
  • the multicast transmission will then be multi-casted using 24 PRBs.
  • the WD will receive the multicast over the 24 PRBs.
  • the broadcasted message may indicate a bandwidth in MHz which may then be determined by the WD to correspond to a certain number of PRBs.
  • the message may indicate that the bandwidth of the multicast transmission bandwidth is larger than a legacy or predefined multicast transmission bandwidth.
  • a single bit may indicate that for example 24 PRBs will be used for the multicast or that for example 6 PRBs will be used for the multicast. That is, a single bit of a broadcasted message may indicate a relative size of the bandwidth used for the multicast. For example, "1 " may indicate a relatively larger bandwidth and a "0" may indicate a relatively smaller bandwidth (as compared to the larger bandwidth).
  • the message indicating a bandwidth broadcasted from the network equipment or base station to the WDs in the may indicate the lowest UE capabilities needed to ensure that a Multicast service can be decoded.
  • a WD of category Cat-M1 only capable of decoding up to 6 PRBs should not attempt to follow a Multicast service for which the service information indicates that decoding over more than 6 PRBs is required.
  • This indication could be made in SIB20, SC-MCCH, MCCH or similar. That is, the message indicating the bandwidth may comprise an indication of a WD category. The WD category may then be used by the WD to determine the bandwidth for receiving the multicast transmission.
  • a bandwidth may be defined as a number of PRBs, a frequency span, a number of sub- carrier, etc.
  • Other alternatives defining the frequency width of the multicast transmission may further be envisioned.
  • An advantage with the use of a broadcast message indicating a bandwidth of the multicast transmission is that it requires less signaling and is less complex than for example indicating a bandwidth using e.g. a DCI, downlink control indication. Using a DCI would require more processing at the WD which is not advantageous when the WD should have low complexity to enable a lower cost and prolonged battery life.
  • the indication and/or message indicating the bandwidth as discussed above may further indicate information of any combination of the following: the used transport block size (TBS), used maximum number of HARQ processes, the UE category or the UE capability.
  • TBS transport block size
  • An exemplary flowchart for use in WD 800 or UE 800 is shown in Fig. 3.
  • the WD (UE in the figure) may receive the broadcasted message indicating a bandwidth of a multicast transmission.
  • the message may be received as system information on a downlink control channel.
  • the WD may determine (e.g. by reading the 'Multicast service-indication and/or the message) whether the multicast service of interest is multi-casted with e.g. a high-data rate, e.g.
  • a network equipment or base station 900 A flowchart for use in a network equipment or base station 900 is shown below in Fig. 4. If the multicast service is intended for high-data rate capable WDs (UEs in figure) it will set the 'Multicast service-indication either in System Information broadcast or the multicast downlink control information (MCCH).
  • MCCH multicast downlink control information
  • the multicast service will then be broadcast accordingly in 6 or 24 PRBs (and/or using larger TBS, and/or using 10 HARQ processes).
  • an indication from a core network node/multicast server in charge of the multicast service may be sent to a network equipment or base station such as an eNB which may perform the multicast.
  • the indication may be a message indicating multicast service requirements. This would indicate the highest capabilities with which the network equipment or base station can broadcast the service to ensure all intended WDs can decode it (e.g. highest capabilities for the WD in terms of e.g. the largest TBS, largest BW and largest number of HARQ processes they can handle).
  • the network node would then be free to schedule Multicast transmission over any radio resources not superseding these upper limits.
  • This indication from the network node/multicast server would likely be a new message or a new information element appended to an existing message. It may be further envisioned according to certain embodiments that the core network node or multicast server may be specifying one or more of the followings:
  • the minimum UE capability class (indicative of one or more of the maximum channel bandwidth, maximum TBS and minimum UE category) that eNB should assume for the reception of a particular multicast service.
  • FIG. 5 A flowchart for a method implemented in a network equipment or base station such as an eNB is shown in Fig. 5.
  • Multicast transmission to a wireless device capable of MTC may further be achieved by broadcasting a message to the WD indicating a Multicast service requirement, as shown in Fig 6.
  • the WD may then receive the multicast if the WD meets the requirements as indicated in the broadcasted message.
  • the message broadcasted to the WD may comprise an indication which may indicate the lowest WD capabilities needed to ensure that a
  • Multicast service can be decoded. For example, a wireless device of category Cat-M1 only capable of decoding up to 6 PRBs should not even attempt to follow a Multicast service for which the service information indicates that decoding over more than 6 PRBs is required. This indication could be in SIB20, MCCH. SC-MCCH or similar. If the WD determines that the multicast service is available, the WD may receive the multicast transmission. If the WD determines (consider) that the multicast service is unavailable, the WD may not receive the multicast transmission.
  • a method for use in a wireless device 800 for receiving a multicast transmission comprises: - Receiving a message indicating multicast transmission requirement, the
  • a method for a use in a base station 900 for transmitting a multicast transmission comprising:
  • FIG. 8 shows a wireless device or a UE and according to one embodiment a wireless device 800 for receiving a multicast transmission is disclosed.
  • the wireless device 800 comprising
  • radio front end circuitry 810 configured to receive a message indicating
  • the message being received from a base station and wherein the message is a broadcast message processing circuitry 820 configured to determine if the WD meets the indicated requirements radio front end circuitry 810 configured to receive the multicast transmission if the indicated requirements are meet.
  • Figure 8 shows a wireless device or a UE and according to one embodiment a base station 900 for transmitting a multicast transmission is disclosed.
  • the base station 900 comprising
  • radio front end circuitry 910 configured to broadcast a message indicating multicast transmission requirement to a wireless device
  • - radio front end circuitry 810 configured to transmit the multicast transmission in accordance with the indicated multicast transmission requirement.
  • Transmitting the multicast transmission in accordance with the indicated multicast transmission requirement may comprise multicasting using equal or more PRBs than what is indicated in the requirements.
  • the number of PRBs may be fewer, equal, or more than a predefined number of PRBs.
  • the requirement may in analogy refer to a transmission bandwidth of the multicast.
  • Broadcasting a message indicating multicast transmission requirement to a wireless device may be performed as described above in relation to bandwidth of the multicast
  • WDs 800 may communicate with network nodes 900 over a wireless interface.
  • WD 800A may transmit wireless signals to one or more of network nodes 900, and/or receive wireless signals from one or more of network nodes 900.
  • the wireless signals may contain voice traffic, data traffic, control signals, and/or any other suitable information.
  • an area of wireless signal coverage associated with a network node 900 may be referred to as a cell 125.
  • the area of wireless signal coverage associated with network node 900A is cell 125A
  • the area of wireless signal coverage associated with network node 900B is cell 125B
  • the area of wireless signal coverage associated with network node 900C is cell 125C.
  • each network node 900 may have any suitable number of cells 125 associated with it.
  • WDs 800 may have D2D capability.
  • WDs 800 may be able to receive signals from and/or transmit signals directly to another WD.
  • WD 800B may be able to receive signals from and/or transmit signals to WD 800C.
  • network nodes 900 may interface with a radio network controller.
  • the radio network controller may control network nodes 900 and may provide certain radio resource management functions, mobility management functions, and/or other suitable functions. In certain embodiments, the functions of the radio network controller may be performed by network node 900.
  • the radio network controller may interface with a core network node. In certain embodiments, the radio network controller may interface with the core network node via interconnecting network 120.
  • Interconnecting network 120 may refer to any interconnecting system capable of transmitting audio, video, signals, data, messages, or any combination of the preceding.
  • Interconnecting network 120 may include all or a portion of a public switched telephone network (PSTN), a public or private data network, a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a local, regional, or global communication or computer network such as the Internet, a wireline or wireless network, an enterprise intranet, or any other suitable communication link, including combinations thereof.
  • PSTN public switched telephone network
  • LAN local area network
  • MAN metropolitan area network
  • WAN wide area network
  • Internet local, regional, or global communication or computer network
  • wireline or wireless network such as the Internet
  • enterprise intranet an enterprise intranet, or any other suitable communication link, including combinations thereof.
  • the core network node may manage the establishment of
  • WDs 800 may exchange certain signals with the core network node using the non-access stratum layer. In non-access stratum signalling, signals between WDs 800 and the core network node may be transparently passed through the radio access network.
  • network nodes 900 may interface with one or more network nodes over an internode interface. For example, network nodes 900A and 900B may interface over an X2 interface.
  • the wireless communication network may represent any type of communication, telecommunication, data, cellular, and/or radio network or other type of system. In particular embodiments, the wireless communication network may be configured to operate according to specific standards or other types of predefined rules or procedures.
  • wireless communication network may implement cellular communication standards, such as Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), and/or other suitable 2G, 3G, 4G, or 5G cellular standards; wireless local area network (WLAN) standards, such as the IEEE 802.1 1 standards; and/or any other appropriate wireless communication standard, such as the Worldwide Interoperability for Microwave Access (WiMax), BIWDtooth, and/or ZigBee standards.
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • WLAN wireless local area network
  • WiMax Worldwide Interoperability for Microwave Access
  • ZigBee ZigBee
  • wireless device refers to a device capable, configured, arranged and/or operable to communicate wirelessly with network equipment 900 and/or another wireless device. Communicating wirelessly may involve transmitting and/or receiving wireless signals using electromagnetic signals, radio waves, infrared signals, and/or other types of signals suitable for conveying information through air.
  • wireless devices may be configured to transmit and/or receive information without direct human interaction. For instance, a wireless device may be designed to transmit information to a network on a predetermined schedule or in response to requests from the network.
  • wireless devices include, but are not limited to, user equipment (UE), machine-to-machine (M2M) devices, machine-type communications (MTC) devices, narrow band internet of things (NB- loT) devices, device-to-device (D2D) communication devices, radio devices, radio
  • UE user equipment
  • M2M machine-to-machine
  • MTC machine-type communications
  • NB- loT narrow band internet of things
  • D2D device-to-device
  • radio devices radio
  • a wireless device may represent any device capable of, configured for, arranged for, and/or operable for wireless communication.
  • a wireless device may represent a UE.
  • the UE may be configured for communication in accordance with one or more communication standards promulgated by the 3 rd Generation Partnership Project (3GPP), such as 3GPP's GSM, UMTS, LTE, and/or 5G standards.
  • 3GPP 3 rd Generation Partnership Project
  • a "user equipment” or “UE” may not necessarily have a “user” in the sense of a human user who owns and/or operates the relevant device. Instead, a UE may represent a device that is intended for sale to, or operation by, a human user but that may not initially be associated with a specific human user.
  • a wireless device may represent a MTC capable device.
  • the MTC device may be configured for communication in accordance with one or more communication standards promulgated by the 3 rd Generation Partnership Project (3GPP), such as 3GPP's GSM, UMTS, LTE, and/or 5G standards.
  • 3GPP 3 rd Generation Partnership Project
  • a wireless device may represent a machine or other device that performs monitoring and/or measurements, and transmits the results of such monitoring and/or measurements to another wireless device and/or a network equipment 900.
  • machines or devices are power meters, industrial machinery, or home or personal appliances, e.g. refrigerators, televisions, personal wearables such as watches etc.
  • a wireless device may represent a vehicle or other equipment that is capable of monitoring and/or reporting on its operational status or other functions associated with its operation.
  • network equipment refers to equipment capable, configured, arranged and/or operable to communicate directly or indirectly with a wireless device and/or with other equipment in the wireless communication network that enable and/or provide wireless access to the wireless device.
  • network equipment 900 include, but are not limited to, base stations (BSs), radio base stations, Node Bs, multi-standard radio (MSR) radio nodes such as MSR BSs, evolved Node Bs (eNBs), femto base stations, pico base stations, micro base stations, macro base stations, one or more (or all) parts of a distributed radio base station such as centralized digital units and/or remote radio units (which may or may not be integrated with an antenna as an antenna integrated radio), network controllers, radio network controllers (RNCs), base station controllers (BSCs), relay nodes, relay donor node controlling relays, base transceiver stations (BTSs), access points (APs), radio access points, transmission points, transmission nodes, Remote Radio Units (RRUs), Remote Radio
  • BSs base stations
  • network equipment 900 may represent any suitable device (or group of devices) capable, configured, arranged, and/or operable to enable and/or provide a wireless device access to the wireless communication network or to provide some service to a wireless device that has accessed the wireless communication network.
  • radio node is used generically to refer both to wireless devices and network equipment 900, as each is respectively described above. Some example implementations of wireless devices, network equipment 900 and radio nodes illustrated above will now be described.
  • an example wireless device 800 may include an antenna 805, radio front-end circuitry 810, processing circuitry 820, and a computer-readable storage medium 830.
  • Antenna 805 may include one or more antennas or antenna arrays, and is configured to send and/or receive wireless signals, and is connected to radio front-end circuitry 810.
  • wireless device 800 may not include antenna 805, and antenna 805 may instead be separate from wireless device 800 and be connectable to wireless device 800 through an interface or port.
  • the radio front-end circuitry 810 may comprise various filters and amplifiers, is connected to antenna 805 and processing circuitry 820, and is configured to condition signals communicated between antenna 805 and processing circuitry 820.
  • wireless device 800 may not include radio front-end circuitry 810, and processing circuitry 820 may instead be connected to antenna 805 without radio front- end circuitry 810.
  • Processing circuitry 820 may include one or more of radio frequency (RF) transceiver circuitry 821 , baseband processing circuitry 822, and application processing circuitry 823.
  • RF radio frequency
  • the RF transceiver circuitry 821 , baseband processing circuitry 822, and application processing circuitry 823 may be on separate chipsets.
  • RF radio frequency
  • part or all of the baseband processing circuitry 822 and application processing circuitry 823 may be combined into one chipset, and the RF transceiver circuitry 821 may be on a separate chipset.
  • part or all of the RF transceiver circuitry 821 and baseband processing circuitry 822 may be on the same chipset, and the application processing circuitry 823 may be on a separate chipset.
  • part or all of the RF transceiver circuitry 821 , baseband processing circuitry 822, and application processing circuitry 823 may be combined in the same chipset.
  • Processing circuitry 820 may include, for example, one or more central processing units (CPUs), one or more microprocessors, one or more application specific integrated circuits (ASICs), and/or one or more field programmable gate arrays (FPGAs).
  • CPUs central processing units
  • microprocessors one or more microprocessors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • some or all of the functionality described herein as being provided by a wireless device may be provided by the processing circuitry 820 executing instructions stored on a computer-readable storage medium 830, as shown in Figure 8.
  • some or all of the functionality may be provided by the processing circuitry 820 without executing instructions stored on a computer-readable medium, such as in a hard-wired manner.
  • the processing circuitry can be said to be configured to perform the described functionality.
  • the benefits provided by such functionality are not limited to the processing circuitry 820 alone or to other components of the wireless device, but are enjoyed by the wireless device as a whole, and/or by end users and the wireless network generally.
  • the processing circuitry 820 may be configured to perform any receiving operations described herein as being performed by a wireless device. Receiving as performed by processing circuitry 820 may include receiving information, data and/or signals from the radio front-end circuitry 810, computer-readable storage medium 830, antenna 805 and/or from the RF transceiver circuitry 821 , baseband processing circuitry 822, and/or application processing circuitry 823. Any information, data and/or signals received from the radio front- end circuitry 810, computer-readable storage medium 830, antenna 805 and/or from the RF transceiver circuitry 821 , baseband processing circuitry 822, and/or application processing circuitry 823 may in turn be received from a network equipment 900 and/or another wireless device.
  • the processing circuitry 820 may be configured to perform any determining operations described herein as being performed by a wireless device. Determining as performed by processing circuitry 820 may include processing information obtained by the processing circuitry 820 and as a result of said processing making a determination.
  • the processing circuitry 820 may be configured to perform any transmitting operations described herein as being performed by a wireless device. Transmitting as performed by processing circuitry 820 may include transmitting information, data and/or signals to the radio front-end circuitry 810, computer-readable storage medium 830, antenna 805 and/or to the RF transceiver circuitry 821 , baseband processing circuitry 822, and/or application processing circuitry 823. Any information, data and/or signals transmitted to the radio front- end circuitry 810, computer-readable storage medium 830, antenna 805 and/or to the RF transceiver circuitry 821 , baseband processing circuitry 822, and/or application processing circuitry 823 may in turn be transmitted to a network equipment 900 and/or another wireless device.
  • Computer-readable storage medium 830 is generally operable to store instructions, such as a computer program, software, an application including one or more of logic, rules, algorithms, code, tables, etc. and/or other instructions capable of being executed by a processor.
  • Examples of computer-readable storage medium 830 include computer memory (for example, Random Access Memory (RAM) or Read Only Memory (ROM)), mass storage media (for example, a hard disk), removable storage media (for example, a Compact Disk (CD) or a Digital Video Disk (DVD)), and/or any other volatile or non-volatile, non-transitory computer-readable and/or computer-executable memory devices that store information, data, and/or instructions that may be used by processing circuitry 820.
  • processing circuitry 820 and computer-readable storage medium 830 may be considered to be integrated.
  • wireless device 800 may include additional components beyond those shown in Figure 8 that may be responsible for providing certain aspects of the wireless device's functionality, including any of the functionality described herein and/or any functionality necessary to support the solution described above.
  • wireless device 800 may include input interfaces, devices and circuits, and output interfaces, devices and circuits.
  • Input interfaces, devices, and circuits are configured to allow input of information into wireless device 800, and are connected to processing circuitry 820 to allow processing circuitry 820 to process the input information.
  • input interfaces, devices, and circuits may include a microphone, a proximity or other sensor, keys/buttons, a touch display, one or more cameras, a USB port, or other input elements.
  • Output interfaces, devices, and circuits are configured to allow output of information from wireless device 800, and are connected to processing circuitry 820 to allow processing circuitry 820 to output information from wireless device 800.
  • output interfaces, devices, or circuits may include a speaker, a display, vibrating circuitry, a USB port, a headphone interface, or other output elements.
  • wireless device 800 may communicate with end users and/or the wireless network, and allow them to benefit from the functionality described herein.
  • wireless device 800 may include a power source 840.
  • the power source 840 may be a battery or other power supply circuitry, as well as any power management circuitry.
  • the power supply circuitry may receive power from an external source.
  • Power source 840 may be connected to radio front-end circuitry 810, processing circuitry 820, and/or computer-readable storage medium 830 and be configured to supply wireless device 800, including processing circuitry 820, with power for performing the functionality described herein.
  • Wireless device 800 may also include multiple sets of processing circuitry 820, computer-readable storage medium 830, radio circuitry 810, and/or antenna 805 for different wireless technologies integrated into wireless device 800, such as, for example, GSM, WCDMA, LTE, WiFi, or Bluetooth wireless technologies.
  • the example network equipment 900 may include processing circuitry 920.
  • processing circuitry 920 may comprise RF circuitry 921 , baseband processing circuitry 922 and application processing circuitry 923.
  • a network equipment 900 such as a mobile base station, a base station controller, a relay node, a NodeB, an enhanced NodeB, and/or any other type of mobile communications node may be provided by the processing circuitry 920 executing instructions stored on a computer-readable storage medium, such as the memory 930 shown in Figure 9.
  • Alternative embodiments of the base station 900 may include additional components responsible for providing additional functionality, including any of the functionality identified above and/or any functionality necessary to support the solution described above.
  • the methods described herein may be implemented as modules performing their respective acts of the method.
  • the WD 800 may comprise a determining module for determining and it may comprise a receiving module for receiving a multicast and/or broadcast.
  • the network equipment 900 may comprise a determining module as well as a receiving module and a transmission module.

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

Abstract

Selon certains modes de réalisation, l'invention concerne un procédé destiné à être utilisé dans un dispositif sans fil permettant de recevoir une transmission multidiffusion. Le dispositif sans fil : détermine une bande passante d'une transmission multidiffusion en fonction d'un message indiquant une bande passante d'une transmission multidiffusion, le message étant reçu en provenance d'un équipement de réseau et le message étant un message de diffusion ; et reçoit la transmission multidiffusion dans la bande passante déterminée. L'invention concerne également un dispositif sans fil mettant en œuvre le procédé, un équipement de réseau et un procédé associé.
PCT/SE2017/050956 2016-09-30 2017-09-29 Indication de la bande passante d'une transmission multidiffusion WO2018063080A1 (fr)

Applications Claiming Priority (2)

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US201662402738P 2016-09-30 2016-09-30
US62/402,738 2016-09-30

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WO2018063080A1 true WO2018063080A1 (fr) 2018-04-05

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130083753A1 (en) * 2011-09-30 2013-04-04 Interdigital Patent Holdings, Inc. Device communication using a reduced channel bandwidth
WO2016003174A1 (fr) * 2014-07-01 2016-01-07 엘지전자(주) Procédé pour transmettre et recevoir un message de groupe dans un système de communication sans fil, et dispositif associé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130083753A1 (en) * 2011-09-30 2013-04-04 Interdigital Patent Holdings, Inc. Device communication using a reduced channel bandwidth
WO2016003174A1 (fr) * 2014-07-01 2016-01-07 엘지전자(주) Procédé pour transmettre et recevoir un message de groupe dans un système de communication sans fil, et dispositif associé
US20170142560A1 (en) * 2014-07-01 2017-05-18 Lg Electronics Inc. Method for transmitting and receiving a group message in wireless communication system and device therefor

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