WO2020020138A1 - 由用户设备执行的方法以及用户设备 - Google Patents

由用户设备执行的方法以及用户设备 Download PDF

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Publication number
WO2020020138A1
WO2020020138A1 PCT/CN2019/097250 CN2019097250W WO2020020138A1 WO 2020020138 A1 WO2020020138 A1 WO 2020020138A1 CN 2019097250 W CN2019097250 W CN 2019097250W WO 2020020138 A1 WO2020020138 A1 WO 2020020138A1
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Prior art keywords
user equipment
mtc
cell
rrc message
present
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PCT/CN2019/097250
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English (en)
French (fr)
Inventor
罗超
刘仁茂
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Sharp Corp
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Sharp Corp
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Priority to EP19842343.6A priority Critical patent/EP3833105A4/en
Priority to US17/263,154 priority patent/US11553409B2/en
Publication of WO2020020138A1 publication Critical patent/WO2020020138A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216Power 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method performed by a user equipment, a method performed by a base station, and a corresponding user equipment.
  • Rel-16 eMTC Machine Type Communication
  • LTE UEs can support different UE categories according to different capabilities. For example, some UEs support eMTC characteristics and / or their evolution characteristics. These UEs may support Category M1 (Category M1) or Category M2 (Category M2). In the present invention, UEs that support eMTC features (such as category M1 or M2) are referred to as MTC UEs, while other (ie, those that do not support eMTC features) are referred to as non-MTC UEs. It should be noted that a UE can support eMTC characteristics and other LTE characteristics at the same time. In the present invention, such UEs also belong to MTC UEs.
  • MTC UE is also called BL / CE UE, where BL refers to Bandwidth-reduced Low-complexity and CE refers to Coverage Enhanced.
  • each downlink subframe is divided into two parts: a control region and a data region.
  • the control area is mainly used to transmit downlink physical layer control signaling, such as PCFICH (Physical control format indicator channel), or PHICH (Physical hybrid ARQ indicator channel, physical hybrid automatic repeat request indicator channel), or PDCCH ( Physical downlink control channel)
  • the data area is mainly used to transmit physical layer data, such as PDSCH.
  • the TTI (Transmission Time Interval) of the non-MTC UE is 1 millisecond, which is the length of one subframe; the PDCCH transmitted in the control region contains the necessary scheduling information for scheduling in the data region of the same subframe. PDSCH.
  • control region is unavailable, and control signaling is not transmitted through PCFICH or PHICH or PDCCH, but is transmitted through MPDCCH, and MPDCCH uses only data region.
  • the TTI of the MTC UE may be much larger than 1 millisecond.
  • the MPDCCH and its scheduled PDSCH may be respectively mapped to multiple subframes.
  • the length of a sub-frame is 1 millisecond.
  • a sub-frame contains 14 OFDM (Orthogonal Frequency Division Multiplexing) symbols.
  • the first N symbols are used to control the area, and the rest 14-N symbols are used for the data area.
  • the 14 OFDM symbols can be numbered in the entire subframe (that is, 0 to 13), or a subframe can be divided into two slots, and the 7 OFDM symbols in each slot can be numbered separately. (Ie, they are all 0 to 6); in the present invention, unless otherwise specified, the latter numbering method is used. If no time slot is specified, it refers to the first time slot, that is, time slot 0.
  • the size of N is determined by the CFI (Control Format Indicator) carried in the PCFICH in symbol 0.
  • the CFI value can be 1, 2, 3, and 4, where 4 is a reserved value.
  • N is equal to the value of CFI; when the downlink system bandwidth is less than or equal to 10 physical resource blocks, N is equal to the value of CFI plus 1.
  • the value of N is determined by the parameter startSymbolBR in SIB1-BR.
  • startSymbolBR is used to indicate the position of the starting OFDM symbol of the MPDCCH UE's MPDCCH and PDSCH (except the PDSCH carrying SIB1-BR).
  • the value of startSymbolBR can be 1, 2, or 3; when the downlink system bandwidth is less than or equal to 10 physical resource blocks, the value of startSymbolBR can be 2, or 3. , Or 4.
  • SIB1 System Information Block Type 1
  • SIB1 the time domain resources used by SIB1 are fixed, that is, sub-frames 5 of all even-numbered system frames (System Frame, whose number is called SFN, that is, System Frame Frame Number).
  • SIB1 is transmitted through the PDSCH, and the PDSCH is scheduled through the PDCCH in the same subframe.
  • the frequency domain bandwidth used by the PDSCH is limited only by the system bandwidth.
  • SIB1-BR System Information Block Type1-BR
  • the SIB1-BR is scheduled through a field schedulingInfoSIB1-BR in a master information block (Master Information Block).
  • the steps of cell search and system information acquisition performed by the non-MTC UE include:
  • PSS Primary, synchronization, signal
  • PBCH Physical Broadcast Channel
  • the steps of cell search and system information acquisition performed by the MTC UE include:
  • PSS Primary, synchronization, signal
  • PBCH Physical Broadcast Channel
  • non-MTC UEs can ignore the SIB1-BR scheduling information in the MIB.
  • the UE may consider that the SIB1-BR is not sent in the cell.
  • the MTC UE can consider the cell to be barred ("barred").
  • the MTC UE cannot obtain MIB or SIB1-BR or SIB2 or when the non-MTC UE cannot obtain MIB or SIB1 or SIB2, the UE can consider that the cell is forbidden to access.
  • non-MTC UEs need to identify such (“eMTC independent deployment") cells as soon as possible in the process of cell search and system information acquisition.
  • the present invention can provide a method performed by a user equipment and a user equipment, which can enable the user equipment to accelerate cell selection and save power consumption.
  • non-MTC UEs can identify eMTC independent deployment cells that are forbidden to access as soon as possible, or MTC UE can identify cells that are allowed to access as soon as possible and perform corresponding processing, thereby accelerating cell selection and saving power consumption.
  • the present invention can provide a method performed by the user equipment and the user equipment, which can enable the base station to configure a resource mapping manner of different channels to the user equipment and perform corresponding processing, thereby enabling more flexible and efficient use of communication resources.
  • a method performed by a user equipment includes: receiving a radio resource control RRC message; and determining, according to one or more information elements IE or a part of an IE in the RRC message, Indication information related to the control area and / or status indication information related to the access of the cell; and according to the indication information, processing related to the access of the cell and / or processing related to the resource mapping is performed.
  • the user equipment is a non-MTC UE that does not support machine-type communication MTC
  • the processing includes determining whether the cell is forbidden to access and whether it is necessary to obtain at least one of system information block type 1 or SIB1. deal with.
  • the user equipment may be an MTC UE supporting machine-type communication MTC
  • the processing includes determining a position, physical location of a start orthogonal frequency division multiplexing OFDM symbol of the machine-type communication physical downlink control channel MPDCCH, and physical At least one of the positions of the starting OFDM symbol of the downlink shared channel PDSCH is processed.
  • a method performed by a user equipment including: receiving a radio resource control RRC message; and determining a resource mapping-related information according to one or more information elements IE or a part of an IE in the RRC message. Indication information; and performing processing related to cell access and / or resource mapping according to the indication information.
  • the user equipment is a non-MTC UE that does not support machine-type communication MTC
  • the processing includes determining whether the cell is forbidden to access and whether it is necessary to obtain at least one of system information block type 1 or SIB1. deal with.
  • the user equipment may be an MTC UE supporting machine type communication MTC, and the processing includes applying a starting orthogonal frequency division of a machine type communication physical downlink control channel MPDCCH and / or a physical downlink shared channel PDSCH. Processing of multiplexing OFDM symbol positions.
  • a method performed by a user equipment including: receiving a control format indication CFI carried in a physical control format indication channel PCFICH; and determining whether the CFI value is a preset value according to whether the CFI value is a preset value. Indication information related to the control region, resource mapping, and / or cell access.
  • a method performed by a user equipment including: receiving a control format indication CFI carried in a physical control format indication channel PCFICH; and a value of the CFI is a preset value, and the user equipment is In the case of MTC UE supporting machine communication MTC, processing related to resource mapping is performed.
  • a method performed by a user equipment wherein the user equipment is an MTC UE supporting machine type communication MTC, and the method includes: receiving a radio resource control RRC message; and according to the RRC message, The one or more information elements IE or a part of an IE determine the indication information related to the resource mapping.
  • a user equipment including: a processor; and a memory storing instructions; wherein, when the instructions are executed by the processor, the foregoing method is performed.
  • the user equipment can accelerate cell selection and save power consumption.
  • non-MTC UEs can identify eMTC independent deployment cells that are forbidden to access as soon as possible, or MTC UE can identify cells that are allowed to access as soon as possible and perform corresponding processing, thereby accelerating cell selection and saving power consumption.
  • the base station can enable the base station to configure resource mapping modes of different channels for the user equipment and perform corresponding processing, thereby enabling more flexible and efficient use of communication resources.
  • FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart illustrating a method performed by a user equipment according to a second embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating a method performed by a user equipment according to a third embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating a method performed by a user equipment according to a fourth embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating a method performed by a user equipment according to Embodiment 5 of the present invention.
  • FIG. 6 is a flowchart illustrating a method performed by a user equipment according to Embodiment 6 of the present invention.
  • FIG. 7 is a flowchart illustrating a method performed by a user equipment according to Embodiment 7 of the present invention.
  • FIG. 8 is a flowchart illustrating a method performed by a user equipment according to an eighth embodiment of the present invention.
  • FIG. 9 is a flowchart illustrating a method performed by a user equipment according to Embodiment 9 of the present invention.
  • FIG. 10 is a block diagram showing a user equipment according to the present invention.
  • the following takes the LTE mobile communication system and its subsequent evolved versions as an example application environment, and specifically describes various embodiments according to the present invention.
  • the present invention is not limited to the following embodiments, but can be applied to more other wireless communication systems, such as 5G and subsequent mobile communication systems.
  • DCI Downlink ControlInformation, downlink control information
  • eMTC Enhanced Machine-Type Communication to enhance machine communication
  • LTE-A Long-Term Evolution-Advanced, Long-Term Evolution Technology Upgrade
  • MIB Master Information Block
  • MPDCCH MTC physical downlink control channel, MTC physical downlink control channel
  • OFDM Orthogonal, Frequency, Division, Multiplexing, Orthogonal Frequency Division Multiplexing
  • PBCH Physical Broadcast Channel
  • PCFICH Physical control format indicator channel
  • PDCCH Physical downlink control channel
  • PDSCH Physical downlink shared channel
  • PHICH Physical Hybrid ARQ Indicator channel, physical hybrid automatic repeat request indication channel
  • PSS Primary Synchronization Signal
  • UE User Equipment
  • FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
  • the steps performed by the user equipment UE include:
  • an RRC message is received from, for example, a base station.
  • the RRC message may be a MIB.
  • the RRC message may be an RRC Connection Reconfiguration message.
  • step 103 according to the received one or more IEs or a part of an IE in the RRC message, determine the indication information related to the control area and / or cell access in the subframe, for example, determine the following One or more of the instructions:
  • Whether to transmit the PDCCH such as whether to transmit the PDCCH in the control region.
  • PCFICH Whether to transmit PCFICH, such as whether to transmit PCFICH in the control area.
  • Whether to transmit PHICH such as whether to transmit PHICH in the control area.
  • the cell is a dedicated eMTC cell, for example, whether only MTC UE access is allowed, and whether only UEs of category M1 (Category M1) are allowed to access; For example, whether to allow only UEs in category M1 or M2 to access.
  • category M1 Category M1
  • step 105 according to the instruction information received in step 103, processing related to cell access is performed, for example, determining one or more of the following:
  • the indication information indicates one or more of the following:
  • the cell is an eMTC dedicated cell.
  • the indication information indicates one or more of the following:
  • the length of the control area is greater than 0.
  • control area such as a non-zero size control area.
  • the cell is not an eMTC dedicated cell.
  • the cell allows access.
  • the "not transmitting" mentioned in the first embodiment of the present invention may be replaced with “unsupported", and the “transmitting” may be replaced with “supporting”.
  • the "non-existent” mentioned in the first embodiment of the present invention may be replaced by “not supported”, and the "existent” may be replaced with “supported”.
  • the UE in Embodiment 1 of the present invention is a non-MTC UE.
  • FIG. 2 is a flowchart illustrating a method performed by a user equipment according to a second embodiment of the present invention.
  • the steps performed by the user equipment UE include:
  • an RRC message is received from, for example, a base station.
  • the RRC message may be a MIB.
  • the RRC message may be an RRC Connection Reconfiguration message.
  • step 203 according to the received one or more IEs or a part of an IE in the RRC message, determine the indication information related to the control area and / or cell access in the subframe, for example, determine the following One or more of the instructions:
  • Whether to transmit the PDCCH such as whether to transmit the PDCCH in the control region.
  • PCFICH Whether to transmit PCFICH, such as whether to transmit PCFICH in the control area.
  • Whether to transmit PHICH such as whether to transmit PHICH in the control area.
  • the cell is a dedicated eMTC cell, for example, whether only MTC UE access is allowed, and whether only UEs of category M1 (Category M1) are allowed to access; For example, whether to allow only UEs in category M1 or M2 to access.
  • category M1 Category M1
  • processing related to resource mapping is performed according to the instruction information received in step 203, for example, determining one or more of the following:
  • the indication information indicates one or more of the following:
  • the cell is an eMTC dedicated cell.
  • the position of the starting OFDM symbol of the MPDCCH is a predefined value, such as 0 (that is, the first symbol in a subframe, also referred to as symbol 0).
  • the position of the starting OFDM symbol of the PDSCH is a predefined value, such as 0 (ie, the first symbol in a subframe, also referred to as symbol 0).
  • the PDSCH may be a PDSCH that does not carry SIB1-BR.
  • the position of the starting OFDM symbol may be a default position of the starting OFDM symbol.
  • the position of the starting OFDM symbol may be reconfigured through other messages.
  • non-transmission mentioned in the second embodiment of the present invention may be replaced with “not supported”, and the "transmission” may be replaced with “supported”.
  • the "non-existent” mentioned in the first embodiment of the present invention may be replaced by “not supported”, and the "existent” may be replaced with “supported”.
  • the UE in Embodiment 2 of the present invention is an MTC UE.
  • FIG. 3 is a flowchart illustrating a method performed by a user equipment according to a third embodiment of the present invention.
  • the steps performed by the user equipment UE include:
  • an RRC message is received from, for example, a base station.
  • the RRC message may be a MIB.
  • the RRC message may be an RRC Connection Reconfiguration message.
  • the indication information related to the resource mapping is determined, for example, one or more of the following indication information is determined:
  • the value can be "true” or "false".
  • the value can be "true” or "false".
  • the position of the starting OFDM symbol of the MPDCCH for example, the value can be 0, or 1, or 2, or 3, or 4.
  • the value when the downlink system bandwidth is greater than 10 physical resource blocks may be 0, or 1, or 2, or 3, and may be 0 or 2 when the downlink system bandwidth is less than or equal to 10 physical resource blocks. , Or 3, or 4.
  • the position of the starting OFDM symbol of the PDSCH can be 0, or 1, or 2, or 3, or 4.
  • the value when the downlink system bandwidth is greater than 10 physical resource blocks may be 0, or 1, or 2, or 3, and may be 0 or 2 when the downlink system bandwidth is less than or equal to 10 physical resource blocks. , Or 3, or 4.
  • the PDSCH may be a PDSCH that does not carry SIB1-BR.
  • the position of the starting OFDM symbol may be a default position of the starting OFDM symbol.
  • the position of the starting OFDM symbol may be reconfigured through other messages.
  • a process related to cell access is performed, for example, determining one or more of the following:
  • the indication information indicates one or more of the following:
  • the position of the starting OFDM symbol of the MPDCCH is 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the position of the starting OFDM symbol of the PDSCH is 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the indication information indicates one or more of the following:
  • the position of the starting OFDM symbol of the MPDCCH is not 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the position of the starting OFDM symbol of the PDSCH is not 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the cell allows access.
  • the UE in Embodiment 3 of the present invention is a non-MTC UE.
  • FIG. 4 is a flowchart illustrating a method performed by a user equipment according to a fourth embodiment of the present invention.
  • the steps performed by the user equipment UE include:
  • an RRC message is received from, for example, a base station.
  • the RRC message may be a MIB.
  • the RRC message may be an RRC Connection Reconfiguration message.
  • the indication information related to resource mapping is determined, for example, one or more of the following indication information is determined:
  • the value can be "true” or "false".
  • the value can be "true” or "false".
  • the position of the starting OFDM symbol of the MPDCCH for example, the value can be 0, or 1, or 2, or 3, or 4.
  • the value when the downlink system bandwidth is greater than 10 physical resource blocks may be 0, or 1, or 2, or 3, and may be 0 or 2 when the downlink system bandwidth is less than or equal to 10 physical resource blocks. , Or 3, or 4.
  • the position of the starting OFDM symbol of the PDSCH can be 0, or 1, or 2, or 3, or 4.
  • the value when the downlink system bandwidth is greater than 10 physical resource blocks may be 0, or 1, or 2, or 3, and may be 0 or 2 when the downlink system bandwidth is less than or equal to 10 physical resource blocks. , Or 3, or 4.
  • the PDSCH may be a PDSCH that does not carry SIB1-BR.
  • the position of the starting OFDM symbol may be a default position of the starting OFDM symbol.
  • the position of the starting OFDM symbol may be reconfigured through other messages.
  • processing related to resource mapping is performed, for example, one or more of the following are performed:
  • the position of the starting OFDM symbol of the MPDCCH indicated by the application for example, when the modulation symbols of the MPDCCH (optionally, after layer mapping and precoding operations are mapped) to the resource elements, the mapped resource elements are at The symbol number in the first slot of a subframe is greater than or equal to the position of the starting OFDM symbol of the indicated MPDCCH.
  • the position of the starting OFDM symbol of the PDSCH indicated by the application for example, when mapping the PDSCH modulation symbol (optionally, after layer mapping and precoding operations) to a resource element, the mapped resource element is at The symbol number in the first slot of a subframe is greater than or equal to the position of the starting OFDM symbol of the indicated PDSCH.
  • the UE in Embodiment 4 of the present invention is an MTC UE.
  • FIG. 5 is a flowchart illustrating a method performed by a user equipment according to Embodiment 5 of the present invention.
  • the steps performed by the user equipment UE include:
  • a CFI carried in a PCFICH is received from, for example, a base station.
  • the CFI carried in the PCFICH is received from a predefined set of resource elements in a first OFDM symbol of a subframe.
  • step 503 according to whether the value of the CFI is a preset value, determining indication information related to a control region, resource mapping, and / or cell access in a subframe, for example, if the CFI is received, If the value is equal to a preset value, it is determined to be one or more of the following:
  • the position of the starting OFDM symbol of the MPDCCH is 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the position of the starting OFDM symbol of the PDSCH is 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the cell is a dedicated eMTC cell. For example, only MTC UEs are allowed to access, and only UEs of category M1 (Category M1) are allowed to access. M1 or category M2 UE access.
  • the preset value may be equal to 4.
  • the PDSCH mentioned in Embodiment 5 of the present invention is a PDSCH that does not carry SIB1-BR.
  • the position of the starting OFDM symbol may be a default position of the starting OFDM symbol.
  • the position of the starting OFDM symbol may be reconfigured through other messages.
  • the PCFICH mentioned in Embodiment 5 of the present invention is transmitted only in subframe 5 of the even-numbered system frame (assuming that the first subframe of a system frame is subframe 0).
  • PCFICH is not transmitted in all other subframes except subframe 5 of an even-numbered system frame (assuming that the first subframe of a system frame is subframe 0).
  • the UE in Embodiment 5 of the present invention is a non-MTC UE.
  • FIG. 6 is a flowchart illustrating a method performed by a user equipment according to Embodiment 6 of the present invention.
  • the steps performed by the user equipment UE include:
  • the CFI carried in the PCFICH is received from, for example, a base station.
  • the CFI carried in the PCFICH is received from a predefined set of resource elements in a first OFDM symbol of a subframe.
  • step 603 according to whether the value of the CFI is a preset value, determining indication information related to a control region, resource mapping, and / or cell access in a subframe, for example, if the CFI is received, If the value is equal to a preset value, it is determined to be one or more of the following:
  • the position of the starting OFDM symbol of the MPDCCH is 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the position of the starting OFDM symbol of the PDSCH is 0 (ie, the first symbol in the subframe, also referred to as symbol 0).
  • the cell is a dedicated eMTC cell. For example, only MTC UEs are allowed to access, and only UEs of category M1 (Category M1) are allowed to access, and only UEs of category M2 (Category M2) are allowed to access. M1 or category M2 UE access.
  • the preset value may be equal to 4.
  • the PDSCH mentioned in the sixth embodiment of the present invention is a PDSCH that does not carry SIB1-BR.
  • the position of the starting OFDM symbol may be a default position of the starting OFDM symbol.
  • the position of the starting OFDM symbol may be reconfigured through other messages.
  • the PCFICH mentioned in the sixth embodiment of the present invention is transmitted only in subframe 5 of an even-numbered system frame (assuming that the first subframe of a system frame is subframe 0).
  • PCFICH is not transmitted in all other subframes except subframe 5 of the even-numbered system frame (assuming that the first subframe of a system frame is subframe 0).
  • the UE in Embodiment 6 of the present invention is an MTC UE.
  • FIG. 7 is a flowchart illustrating a method performed by a user equipment according to Embodiment 7 of the present invention.
  • the steps performed by the user equipment UE include:
  • a CFI carried in a PCFICH is received from, for example, a base station.
  • the CFI carried in the PCFICH is received from a predefined set of resource elements in a first OFDM symbol of a subframe.
  • step 703 if the received value of the CFI is equal to a preset value, processing related to resource mapping is performed, for example, one or more of the following are performed:
  • the position of the starting OFDM symbol to which the MPDCCH is applied is equal to 0.
  • the modulation symbols of the MPDCCH (optionally, after layer mapping and precoding operations) are mapped to the resource elements, the mapped resource elements
  • the symbol number in the first slot of the subframe is greater than or equal to 0.
  • the resource elements occupied by the PCFICH are not counted in the resource elements.
  • the position of the starting OFDM symbol to which the PDSCH is applied is equal to 0.
  • the PDSCH modulation symbol (optionally, after layer mapping and precoding operations) is mapped to a resource element, the mapped resource element
  • the symbol number in the first slot of the subframe is greater than or equal to 0.
  • the resource elements occupied by the PCFICH are not counted in the resource elements.
  • the preset value may be equal to 4.
  • the PDSCH mentioned in Embodiment 7 of the present invention is a PDSCH that does not carry SIB1-BR.
  • the position of the starting OFDM symbol may be a default position of the starting OFDM symbol.
  • the position of the starting OFDM symbol may be reconfigured through other messages.
  • the PCFICH mentioned in Embodiment 7 of the present invention is transmitted only in subframe 5 of the even-numbered system frame (assuming that the first subframe of a system frame is subframe 0).
  • PCFICH is not transmitted in all other subframes except subframe 5 of the even-numbered system frame (assuming that the first subframe of a system frame is subframe 0).
  • the UE in Embodiment 7 of the present invention is an MTC UE.
  • the user equipment can accelerate cell selection and save power consumption.
  • non-MTC UEs can identify eMTC independent deployment cells that are forbidden to access as soon as possible, or MTC UE can identify cells that are allowed to access as soon as possible and perform corresponding processing, thereby accelerating cell selection and saving power consumption.
  • FIG. 8 is a flowchart illustrating a method performed by a user equipment according to an eighth embodiment of the present invention.
  • the steps performed by the user equipment UE include:
  • an RRC message is received from, for example, a base station.
  • the RRC message may be a UE-specific RRC message, or a cell-specific RRC message.
  • the indication information related to resource mapping is determined, for example, one or more of the following indication information is determined:
  • the position of the starting OFDM symbol of the MPDCCH for example, the value can be 0, or 1, or 2, or 3, or 4.
  • the value when the downlink system bandwidth is greater than 10 physical resource blocks may be 0, or 1, or 2, or 3, and may be 0 or 2 when the downlink system bandwidth is less than or equal to 10 physical resource blocks. , Or 3, or 4.
  • the position of the starting OFDM symbol of the PDSCH can be 0, or 1, or 2, or 3, or 4.
  • the value when the downlink system bandwidth is greater than 10 physical resource blocks may be 0, or 1, or 2, or 3, and may be 0 or 2 when the downlink system bandwidth is less than or equal to 10 physical resource blocks. , Or 3, or 4.
  • the PDSCH may be a PDSCH that does not carry SIB1-BR.
  • the position of the start OFDM symbol of the MPDCCH and the position of the start OFDM symbol of the PDSCH may be the same or different.
  • processing related to resource mapping is performed, for example, performing one or more of the following actions:
  • the position of the starting OFDM symbol of the MPDCCH indicated by the application for example, when the modulation symbols of the MPDCCH (optionally, after layer mapping and precoding operations) are mapped to resource elements, the mapped resource elements.
  • the symbol number in the first slot of a subframe is greater than or equal to the position of the starting OFDM symbol of the indicated MPDCCH.
  • the position of the starting OFDM symbol of the PDSCH indicated by the application for example, when mapping the PDSCH modulation symbol (optionally, after layer mapping and precoding operations) to a resource element, the mapped resource element is at The symbol number in the first slot of a subframe is greater than or equal to the position of the starting OFDM symbol of the indicated PDSCH.
  • the UE in Embodiment 8 of the present invention is an MTC UE.
  • FIG. 9 is a flowchart illustrating a method performed by a user equipment according to Embodiment 9 of the present invention.
  • the steps performed by the user equipment UE include:
  • an RRC message is received from, for example, a base station.
  • the RRC message may be a UE-specific RRC message, or a cell-specific RRC message.
  • step 903 according to the received one or more IEs or a part of an IE in the RRC message, determining indication information related to resource mapping, for example, determining one or more of the following indication information:
  • the resource elements occupied by the PCFICH are not counted in the resource elements.
  • the resource elements occupied by the PCFICH are not counted in the resource elements.
  • the PCFICH mentioned in the ninth embodiment of the present invention is transmitted only in subframe 5 of an even-numbered system frame (assuming that the first subframe of a system frame is subframe 0).
  • the PCFICH is not transmitted in all the subframes except the subframe 5 of the even-numbered system frame (assuming that the first subframe of a system frame is the subframe 0).
  • the UE in Embodiment 9 of the present invention is an MTC UE.
  • the base station can be configured to configure different channel resource mapping modes for the user equipment UE and perform corresponding processing, so that communication resources can be used more flexibly and efficiently.
  • the sixth embodiment and the seventh embodiment can be used together.
  • an MTC UE may perform both the operations in the sixth embodiment and the operations in the seventh embodiment.
  • the eighth embodiment and the ninth embodiment can be used together.
  • an MTC UE can perform the operations in Embodiment 8 according to the instructions of RRC message 1, and perform the operations in Embodiment 9 according to the instructions of RRC message 2.
  • the RRC message 1 and the RRC message 2 can be the same RRC message It can also be a different RRC message.
  • the cell may refer to a cell that the UE is trying to access, a current serving cell, or a target serving cell during a handover process.
  • FIG. 10 is a block diagram showing a user equipment UE according to the present invention.
  • the user equipment UE100 includes a processor 1001 and a memory 1002.
  • the processor 1001 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 1002 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memories.
  • the memory 1002 stores program instructions. When the instruction is executed by the processor 1001, the method described above and executed by the user equipment described in detail in the present invention may be executed.
  • the program running on the device according to the present invention may be a program that causes a computer to realize the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory systems.
  • a program for implementing the functions of the embodiments of the present invention may be recorded on a computer-readable recording medium.
  • Corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called “computer system” herein may be a computer system embedded in the device, and may include an operating system or hardware (such as a peripheral device).
  • the "computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium for a short-term dynamic storage program, or any other recording medium readable by a computer.
  • circuits designed to perform the functions described in this specification may include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general-purpose processor may be a microprocessor, or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit. In the event that new integrated circuit technologies have replaced existing integrated circuits due to advances in semiconductor technology, one or more embodiments of the present invention may also be implemented using these new integrated circuit technologies.
  • the present invention is not limited to the embodiments described above. Although various examples of the embodiments have been described, the present invention is not limited thereto.
  • Fixed or non-mobile electronic equipment installed indoors or outdoors can be used as terminal equipment or communication equipment, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

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Abstract

本发明提供了一种由用户设备执行的方法以及用户设备,所述方法包括:接收无线资源控制RRC消息;根据所述RRC消息中的一个或者多个信息元素IE或者一个IE的一部分,确定与子帧中的控制区域和/或小区的接入有关的指示信息;和根据所述指示信息,执行与小区的接入和/或资源映射有关的处理,由此,能够使用户设备加速小区选择和节省耗电。

Description

由用户设备执行的方法以及用户设备 技术领域
本发明涉及无线通信技术领域,具体涉及由用户设备执行的方法、由基站执行的方法以及相应的用户设备。
背景技术
2018年6月,在第三代合作伙伴计划(3rd Generation Partnership Project:3GPP)RAN#80次全会上,一个关于机器类通信(Machine Type Communication:MTC)更进一步增强的新的工作项目被批准立项(参见非专利文献:RP-181450:New WID on Rel-16 MTC enhancements for LTE,下面简称Rel-16 eMTC)。Rel-16 eMTC的目标之一是支持eMTC在“独立部署”(stand-alone deployment)场景下把LTE的控制区域(control region)用于MPDCCH(MTC physical downlink control channel,MTC物理下行控制信道)和PDSCH(Physical downlink shared channel,物理下行共享信道)的传输。
在现有的3GPP标准规范中,LTE UE按照能力的不同可以支持不同的UE类别(UE category)。例如有些UE支持eMTC特性和/或其演进特性,这些UE可以支持类别M1(Category M1)或者类别M2(Category M2)。在本发明中将支持eMTC特性(如支持类别M1或者类别M2)的UE称为MTC UE,而将其他(即不支持eMTC特性的)UE称为非MTC UE。需要指出的是,一个UE可以同时支持eMTC特性以及其他的LTE特性,在本发明中这种UE也属于MTC UE。
在现有的3GPP标准规范中,MTC UE也称为BL/CE UE,其中BL指窄带低复杂度(Bandwidth-reduced Low-complexity),CE指覆盖增强(Coverage Enhanced)。
在现有的3GPP标准规范中,对于非MTC UE,每个下行子帧(subframe)被分成2部分:控制区域(control region)和数据区域(data region)。控 制区域主要用于传输下行物理层控制信令,例如PCFICH(Physical control format indicator channel,物理控制格式指示信道),或者PHICH(Physical hybrid ARQ indicator channel,物理混合自动重复请求指示信道),或者PDCCH(Physical downlink control channel,物理下行控制信道),数据区域主要用于传输物理层数据,例如PDSCH。非MTC UE的TTI(Transmission time interval,传输时间间隔)是1毫秒,即1个子帧的长度;控制区域中传输的PDCCH包含了必要的调度信息,用于调度在同一个子帧的数据区域中的PDSCH。而对于MTC UE,控制区域是不可用的,控制信令也不通过PCFICH或者PHICH或者PDCCH传输,而是通过MPDCCH传输,而MPDCCH只使用数据区域。MTC UE的TTI有可能远远大于1毫秒,此时MPDCCH及其所调度的PDSCH可能都分别映射到多个子帧上。
一个子帧的长度是1毫秒,以使用常规循环前缀(normal cyclic prefix)为例,一个子帧中包含14个OFDM(Orthogonal Frequency Division Multiplexing)符号,其中前面N个符号用于控制区域,其余的14-N个符号用于数据区域。这14个OFDM符号可以在整个子帧内进行编号(即0~13),也可以将一个子帧划分为两个时隙(slot),对每个时隙内的7个OFDM符号分别进行编号(即都是0~6);在本发明中,如未特别说明,使用后一种编号方式,如未指定时隙,指的是第一个时隙,即时隙0。对非MTC UE,N的大小由符号0中的PCFICH中携带的CFI(Control Format Indicator)确定。CFI的取值可以是1、2、3和4,其中4为保留值。当下行系统带宽大于10个物理资源块(Physical Resource Block,PRB)时,N等于CFI的取值;当下行系统带宽小于或等于10个物理资源块时,N等于CFI的取值加1。对MTC UE,N的值由SIB1-BR中的参数startSymbolBR决定。startSymbolBR用于指示MTC UE的MPDCCH和PDSCH(除携带SIB1-BR的PDSCH外)的起始OFDM符号的位置。在下行系统带宽大于10个物理资源块时,startSymbolBR的取值可以是1,或者2,或者3;在下行系统带宽小于或等于10个物理资源块时,startSymbolBR的取值可以是2,或者3,或者4。
非MTC UE和MTC UE还有一个重要区别就是对“系统信息块类型1”(System Information Block Type 1,SIB1)的读取方式。对于非MTC UE,SIB1所使用的时域资源是固定的,即所有偶数系统帧(System Frame,其编号称为SFN,即System Frame Number)的子帧5。SIB1是通过PDSCH传输的,而PDSCH是通过同一个子帧的PDCCH调度的,PDSCH所使用的频域带宽只受限于系统带宽。而对于MTC UE,由于其所支持的射频带宽一般较小,可能无法读取非MTC UE所使用的SIB1,所以MTC UE使用的是“SIB1-BR”(System Information Block Type1-BR),其总是在一个比较小的频域带宽内发送。SIB1-BR通过主信息块(Master Information Block,MIB)中的一个字段schedulingInfoSIB1-BR进行调度。
当UE试图接入某个小区时,对非MTC UE,其执行的小区搜索和系统信息获取的步骤包括:
1.检测PSS(Primary synchronization signal);
2.检测SSS(Secondary synchronization signal),并获取小区ID;
3.读取PBCH(Physical broadcast channel)中携带的MIB,从MIB中获取系统帧号、系统带宽等,并确定系统中的帧和子帧的边界和编号;
4.在SIB1所在的子帧中检测调度SIB1的PDCCH,解码PDCCH中携带的下行控制信息(Downlink control information,DCI);
5.根据DCI中的调度信息解码DCI所调度的PDSCH中携带的SIB1;
6.根据SIB1中对其他系统信息的调度信息,解码其他系统信息。
当UE试图接入某个小区时,对MTC UE,其执行的小区搜索和系统信息获取的步骤包括:
1.检测PSS(Primary synchronization signal);
2.检测SSS(Secondary synchronization signal),并获取小区ID;
3.读取PBCH(Physical broadcast channel)中携带的MIB,从MIB中获取系统帧号、系统带宽以及SIB1-BR调度信息等,并确定系统中的帧和子帧的边界和编号;
4.根据SIB1-BR调度信息解码相应PDSCH中携带的SIB1-BR;
5.根据SIB1-BR中对其他系统信息的调度信息,解码其他系统信息。
另外,值得指出的是,非MTC UE可以忽略MIB中的SIB1-BR调度信息。而对于MTC UE,当MIB中的SIB1-BR调度信息取一个预定义的特殊值(0)时,该UE可以认为小区中不发送SIB1-BR。此时,由于无法获取SIB1-BR,该MTC UE可以认为该小区是禁止接入的(“barred”)。实际上,当MTC UE无法获取MIB或者SIB1-BR或者SIB2,或者当非MTC UE无法获取MIB或者SIB1或者SIB2时,UE都可以认为该小区是禁止接入的。
在eMTC独立部署场景下,如果MPDCCH和PDSCH使用了控制区域中的资源,这也就意味着控制区域无法再用于承载PCFICH、PHICH、PDCCH等信道中携带的控制信令,即相应的小区无法服务非MTC UE。为加速非MTC UE的小区选择和节省非MTC UE的耗电,非MTC UE需要在小区搜索和系统信息获取的过程中尽快识别出这样的(“eMTC独立部署”)小区。另外,为了兼容传统的MTC UE(例如某些DCI格式用于同时给传统的MTC UE和能使用控制区域的MTC UE分配资源),即使在eMTC独立部署小区中,对于某些MTC UE,其MPDCCH可以仍然按照传统的方式分配资源(即MPDCCH不使用控制区域),而PDSCH按照新的方式分配资源(即PDSCH使用控制区域)。
发明内容
为了解决现有技术的上述问题中的至少一部分,提出了本发明。
本发明可以提供一种由用户设备执行的方法以及用户设备,能够使用户设备加速小区选择和节省耗电。例如,能够使非MTC UE尽快识别禁止接入的eMTC独立部署小区,或者使MTC UE尽快识别允许接入的小区并执行相应的处理,从而加速小区选择和节省耗电。
另外,本发明可以提供一种由用户设备执行的方法以及用户设备,能够使基站对用户设备分别配置不同信道的资源映射方式,并执行相应的处理,从而能够更灵活有效地利用通信资源。
根据本发明,提出了一种由用户设备执行的方法,包括:接收无线资源控制RRC消息;根据所述RRC消息中的一个或者多个信息元素IE或者一个IE的一部分,确定与子帧中的控制区域有关的指示信息和/或与小 区的接入有关的状态指示信息;和根据所述指示信息,执行与小区的接入有关的处理和/或与资源映射有关的处理。
在上述方法中,可以是,所述用户设备为不支持机器类通信MTC的非MTC UE,所述处理包括确定小区是否禁止接入、是否需要获取系统信息块类型1即SIB1之中的至少一个处理。
在上述方法中,可以是,所述用户设备为支持机器类通信MTC的MTC UE,所述处理包括确定机器类通信物理下行控制信道MPDCCH的起始正交频分复用OFDM符号的位置、物理下行共享信道PDSCH的起始OFDM符号的位置之中的至少一个处理。
根据本发明,提出了一种由用户设备执行的方法,包括:接收无线资源控制RRC消息;根据所述RRC消息中的一个或者多个信息元素IE或者一个IE的一部分,确定与资源映射有关的指示信息;和根据所述指示信息,执行与小区的接入和/或资源映射有关的处理。
在上述方法中,可以是,所述用户设备为不支持机器类通信MTC的非MTC UE,所述处理包括确定小区是否禁止接入、是否需要获取系统信息块类型1即SIB1之中的至少一个处理。
在上述方法中,可以是,所述用户设备为支持机器类通信MTC的MTC UE,所述处理包括应用机器类通信物理下行控制信道MPDCCH和/或物理下行共享信道PDSCH的起始正交频分复用OFDM符号的位置的处理。
根据本发明,提出了一种由用户设备执行的方法,包括:接收物理控制格式指示信道PCFICH中携带的控制格式指示CFI;和根据所述CFI的值是否为预设值,确定与子帧中的控制区域、资源映射、和/或小区的接入有关的指示信息。
根据本发明,提出了一种由用户设备执行的方法,包括:接收物理控制格式指示信道PCFICH中携带的控制格式指示CFI;和在所述CFI的值为预设值、且所述用户设备为支持机器类通信MTC的MTC UE的情况下,执行与资源映射有关的处理。
根据本发明,提出了一种由用户设备执行的方法,其中,所述用户设备为支持机器类通信MTC的MTC UE,所述方法包括:接收无线资源控制RRC消息;和根据所述RRC消息中的一个或者多个信息元素IE或者一个IE的一部分,确定与资源映射有关的指示信息。
根据本发明,提出了一种用户设备,包括:处理器;和存储器,存储有指令;其中,所述指令在由所述处理器运行时执行上述的方法。
发明效果
根据本发明的由用户设备执行的方法以及用户设备,能够使用户设备加速小区选择和节省耗电。例如,能够使非MTC UE尽快识别禁止接入的eMTC独立部署小区,或者使MTC UE尽快识别允许接入的小区并执行相应的处理,从而加速小区选择和节省耗电。
另外,根据本发明的由用户设备执行的方法以及用户设备,能够使基站对用户设备分别配置不同信道的资源映射方式,并执行相应的处理,从而能够更灵活有效地利用通信资源。
附图说明
通过下文结合附图的详细描述,本发明的上述和其它特征将会变得更加明显,其中:
图1是示出了根据本发明的实施例一的由用户设备执行的方法的流程图。
图2是示出了根据本发明的实施例二的由用户设备执行的方法的流程图。
图3是示出了根据本发明的实施例三的由用户设备执行的方法的流程图。
图4是示出了根据本发明的实施例四的由用户设备执行的方法的流程图。
图5是示出了根据本发明的实施例五的由用户设备执行的方法的流程图。
图6是示出了根据本发明的实施例六的由用户设备执行的方法的流程图。
图7是示出了根据本发明的实施例七的由用户设备执行的方法的流程图。
图8是示出了根据本发明的实施例八的由用户设备执行的方法的流程图。
图9是示出了根据本发明的实施例九的由用户设备执行的方法的流程图。
图10是表示本发明所涉及的用户设备的框图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意,本发明不应局限于下文所述的具体实施方式。另外,为了简便起见,省略了对与本发明没有直接关联的公知技术的详细描述,以防止对本发明的理解造成混淆。
下文以LTE移动通信系统及其后续的演进版本作为示例应用环境,具体描述了根据本发明的多个实施方式。然而,需要指出的是,本发明不限于以下实施方式,而是可适用于更多其它的无线通信系统,例如5G及其之后的移动通信系统等。
下面描述本发明涉及的部分术语,如未特别说明,本发明涉及的术语采用此处定义。本发明给出的术语在LTE、LTE-Advanced、LTE-Advanced Pro、5G以及之后的通信系统中可能采用不同的命名方式,但本发明中采用统一的术语,在应用到具体的系统中时,可以替换为相应系统中采用的术语。
CFI:Control Format Indicator,控制格式指示
DCI:Downlink Control Information,下行控制信息
eMTC:Enhanced Machine-Type Communication,增强机器类通信
IE:Information Element,信息元素
LTE-A:Long Term Evolution-Advanced,长期演进技术升级版
MAC:Medium Access Control,介质访问控制
MIB:Master Information Block,主信息块
MPDCCH:MTC physical downlink control channel,MTC物理下行控制信道
MTC:Machine Type Communication,机器类通信
OFDM:Orthogonal Frequency Division Multiplexing,正交频分复用
PBCH:Physical Broadcast Channel,物理广播信道
PCFICH:Physical control format indicator channel,物理控制格式指示信道
PDCCH:Physical downlink control channel,物理下行控制信道
PDSCH:Physical downlink shared channel,物理下行共享信道
PHICH:Physical hybrid ARQ indicator channel,物理混合自动重复请求指示信道
PSS:Primary Synchronization Signal,主同步信号
RE:Resource Element,资源元素
RRC:Radio Resource Control,无线资源控制
SFN:System Frame Number,系统帧号
SSS:Secondary Synchronization Signal,辅同步信号
UE:User Equipment,用户设备
[实施例一]
图1是示出了根据本发明的实施例一的由用户设备执行的方法的流程图。
在本发明的实施例一中,用户设备UE执行的步骤包括:
在步骤101,从例如基站接收RRC消息。可选地,所述RRC消息可以是MIB。可选地,所述RRC消息可以是RRC连接重配置(RRC Connection Reconfiguration)消息。
在步骤103,根据接收到的所述RRC消息中的一个或者多个IE或者一个IE的一部分,确定与子帧中的控制区域和/或小区的接入有关的指示信息,例如,确定下面的指示信息中的一个或者多个:
·是否传输PDCCH,例如是否在控制区域中传输PDCCH。
·是否传输PCFICH,例如是否在控制区域中传输PCFICH。
·是否传输PHICH,例如是否在控制区域中传输PHICH。
·控制区域的长度是否为0。
·是否存在控制区域。
·小区是否为eMTC专用小区,例如是否只允许MTC UE接入,又如是否只允许类别M1(Category M1)的UE接入,又如是否只允 许类别M2(Category M2)的UE接入,又如是否只允许类别M1或者类别M2的UE接入。
可选地,在步骤105,根据在步骤103中所接收的所述指示信息,执行与小区的接入有关的处理,例如,确定下面中的一个或者多个:
·是否禁止接入。
·是否需要获取SIB1。
例如,若所述指示信息指示下面中的一个或者多个:
·不传输PDCCH。
·不传输PCFICH。
·不传输PHICH。
·控制区域的长度为0。
·不存在控制区域。
·小区是eMTC专用小区。
则确定为下面中的一个或者多个:
·小区禁止接入。
·不需要获取SIB1。
又如,若所述指示信息指示下面中的一个或者多个:
·传输PDCCH、PCFICH和PHICH。
·控制区域的长度大于0。
·存在控制区域,例如存在非零大小的控制区域。
·小区不是eMTC专用小区。
则确定为下面中的一个或者多个:
·小区允许接入。
·需要获取SIB1。
可选地,本发明的实施例一中所提到的“不传输”可以替换为“不支持”,“传输”可以替换为“支持”。
可选地,本发明的实施例一中所提到的“不存在”可以替换为“不支持”,“存在”可以替换为“支持”。
可选地,本发明的实施例一中的UE为非MTC UE。
[实施例二]
图2是示出了根据本发明的实施例二的由用户设备执行的方法的流程图。
在本发明的实施例二中,用户设备UE执行的步骤包括:
在步骤201,从例如基站接收RRC消息。可选地,所述RRC消息可以是MIB。可选地,所述RRC消息可以是RRC连接重配置(RRC Connection Reconfiguration)消息。
在步骤203,根据接收到的所述RRC消息中的一个或者多个IE或者一个IE的一部分,确定与子帧中的控制区域和/或小区的接入有关的指示信息,例如,确定下面的指示信息中的一个或者多个:
·是否传输PDCCH,例如是否在控制区域中传输PDCCH。
·是否传输PCFICH,例如是否在控制区域中传输PCFICH。
·是否传输PHICH,例如是否在控制区域中传输PHICH。
·控制区域的长度是否为0。
·是否存在控制区域。
·小区是否为eMTC专用小区,例如是否只允许MTC UE接入,又如是否只允许类别M1(Category M1)的UE接入,又如是否只允许类别M2(Category M2)的UE接入,又如是否只允许类别M1或者类别M2的UE接入。
可选地,在步骤205,根据在步骤203中所接收的所述指示信息,执行与资源映射有关的处理,例如,确定下面中的一个或者多个:
·MPDCCH的起始OFDM符号的位置。
·PDSCH的起始OFDM符号的位置。
例如,若所述指示信息指示下面中的一个或者多个:
·不传输PDCCH。
·不传输PCFICH。
·不传输PHICH。
·控制区域的长度为0。
·不存在控制区域。
·小区是eMTC专用小区。
则确定为下面中的一个或者多个:
·MPDCCH的起始OFDM符号的位置是一个预定义的值,例如0(即子帧中的第一个符号,也称为符号0)。
·PDSCH的起始OFDM符号的位置是一个预定义的值,例如0(即子帧中的第一个符号,也称为符号0)。
其中,
·所述PDSCH可以是不携带SIB1-BR的PDSCH。
·所述起始OFDM符号的位置可以是起始OFDM符号的缺省位置。例如,所述起始OFDM符号的位置可以通过其他消息进行重新配置。
可选地,本发明的实施例二中所提到的“不传输”可以替换为“不支持”,“传输”可以替换为“支持”。
可选地,本发明的实施例一中所提到的“不存在”可以替换为“不支持”,“存在”可以替换为“支持”。
可选地,本发明的实施例二中的UE为MTC UE。
[实施例三]
图3是示出了根据本发明的实施例三的由用户设备执行的方法的流程图。
在本发明的实施例三中,用户设备UE执行的步骤包括:
在步骤301,从例如基站接收RRC消息。可选地,所述RRC消息可以是MIB。可选地,所述RRC消息可以是RRC连接重配置(RRC Connection Reconfiguration)消息。
在步骤303,根据接收到的所述RRC消息中的一个或者多个IE或者一个IE的一部分,确定与资源映射有关的指示信息,例如,确定下面的指示信息中的一个或者多个:
·MPDCCH的起始OFDM符号的位置是否为0,例如取值可以是“真”或者“假”。
·PDSCH的起始OFDM符号的位置是否为0,例如取值可以是“真”或者“假”。
·MPDCCH的起始OFDM符号的位置,例如取值可以是0,或者1,或者2,或者3,或者4。可选地,在下行系统带宽大于10个物理资源块时的取值可以是0,或者1,或者2,或者3,在下行系统带宽小于或等于10个物理资源块时可以是0,或者2,或者3,或者4。
·PDSCH的起始OFDM符号的位置,例如取值可以是0,或者1,或者2,或者3,或者4。可选地,在下行系统带宽大于10个物理资源块时的取值可以是0,或者1,或者2,或者3,在下行系统带宽小于或等于10个物理资源块时可以是0,或者2,或者3,或者4。
其中,
·所述PDSCH可以是不携带SIB1-BR的PDSCH。
·所述起始OFDM符号的位置可以是起始OFDM符号的缺省位置。例如,所述起始OFDM符号的位置可以通过其他消息进行重新配置。
可选地,在步骤305,根据在步骤303中所接收的所述指示信息,执行与小区的接入有关的处理,例如,确定下面中的一个或者多个:
·是否禁止接入。
·是否需要获取SIB1。
例如,若所述指示信息指示下面中的一个或者多个:
·MPDCCH的起始OFDM符号的位置是0(即子帧中的第一个符号,也称为符号0)。
·PDSCH的起始OFDM符号的位置是0(即子帧中的第一个符号,也称为符号0)。
则确定为下面中的一个或者多个:
·小区禁止接入。
·不需要获取SIB1。
又如,若所述指示信息指示下面中的一个或者多个:
·MPDCCH的起始OFDM符号的位置不是0(即子帧中的第一个符号,也称为符号0)。
·PDSCH的起始OFDM符号的位置不是0(即子帧中的第一个符号,也称为符号0)。
则确定为下面中的一个或者多个:
·小区允许接入。
·需要获取SIB1。
可选地,本发明的实施例三中的UE为非MTC UE。
[实施例四]
图4是示出了根据本发明的实施例四的由用户设备执行的方法的流程图。
在本发明的实施例四中,用户设备UE执行的步骤包括:
在步骤401,从例如基站接收RRC消息。可选地,所述RRC消息可以是MIB。可选地,所述RRC消息可以是RRC连接重配置(RRC Connection Reconfiguration)消息。
在步骤403,根据接收到的所述RRC消息中的一个或者多个IE或者一个IE的一部分,确定与资源映射有关的指示信息,例如,确定下面的指示信息中的一个或者多个:
·MPDCCH的起始OFDM符号的位置是否为0,例如取值可以是“真”或者“假”。
·PDSCH的起始OFDM符号的位置是否为0,例如取值可以是“真”或者“假”。
·MPDCCH的起始OFDM符号的位置,例如取值可以是0,或者1,或者2,或者3,或者4。可选地,在下行系统带宽大于10个物理资源块时的取值可以是0,或者1,或者2,或者3,在下行系统带宽小于或等于10个物理资源块时可以是0,或者2,或者3,或者4。
·PDSCH的起始OFDM符号的位置,例如取值可以是0,或者1,或者2,或者3,或者4。可选地,在下行系统带宽大于10个物理资源块时的取值可以是0,或者1,或者2,或者3,在下行系统带宽小于或等于10个物理资源块时可以是0,或者2,或者3,或 者4。
其中,
·所述PDSCH可以是不携带SIB1-BR的PDSCH。
·所述起始OFDM符号的位置可以是起始OFDM符号的缺省位置。例如,所述起始OFDM符号的位置可以通过其他消息进行重新配置。
可选地,在步骤405,根据在步骤403中所接收的所述指示信息,执行与资源映射有关的处理,例如,执行下面中的一个或者多个:
·应用所指示的MPDCCH的起始OFDM符号的位置,例如,在将MPDCCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,所映射的资源元素在一个子帧的第一个时隙中的符号编号大于或等于所述所指示的MPDCCH的起始OFDM符号的位置。
·应用所指示的PDSCH的起始OFDM符号的位置,例如,在将PDSCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,所映射的资源元素在一个子帧的第一个时隙中的符号编号大于或等于所述所指示的PDSCH的起始OFDM符号的位置。
可选地,本发明的实施例四中的UE为MTC UE。
[实施例五]
图5是示出了根据本发明的实施例五的由用户设备执行的方法的流程图。
在本发明的实施例五中,用户设备UE执行的步骤包括:
在步骤501,从例如基站接收PCFICH中携带的CFI。例如,从子帧的第一个OFDM符号中预定义的资源元素集合中接收所述PCFICH中携带的所述CFI。
在步骤503,根据所述CFI的值是否为预设值,确定与子帧中的控制区域、资源映射、和/或小区的接入有关的指示信息,例如,若接收到的所述CFI的值等于一个预设值,则确定为下面中的一个或多个:
·不传输PDCCH。
·不传输PHICH。
·MPDCCH的起始OFDM符号的位置是0(即子帧中的第一个符号,也称为符号0)。
·PDSCH的起始OFDM符号的位置是0(即子帧中的第一个符号,也称为符号0)。
·小区是eMTC专用小区,例如只允许MTC UE接入,又如只允许类别M1(Category M1)的UE接入,又如只允许类别M2(Category M2)的UE接入,又如只允许类别M1或者类别M2的UE接入。
·小区禁止接入。
·不需要获取SIB1。
可选地,所述预设值可以等于4。
可选地,本发明的实施例五中所提到的“不传输”可以替换为“不支持”。
可选地,本发明的实施例五中所提到的PDSCH是不携带SIB1-BR的PDSCH。
可选地,所述起始OFDM符号的位置可以是起始OFDM符号的缺省位置。例如,所述起始OFDM符号的位置可以通过其他消息进行重新配置。
可选地,本发明的实施例五中所提到的PCFICH只在偶数系统帧的子帧5(假设一个系统帧的第一个子帧为子帧0)中传输。
可选地,本发明的实施例五中,除偶数系统帧的子帧5(假设一个系统帧的第一个子帧为子帧0)以外的所有其他子帧中都不传输PCFICH。
可选地,本发明的实施例五中的UE为非MTC UE。
[实施例六]
图6是示出了根据本发明的实施例六的由用户设备执行的方法的流程图。
在本发明的实施例六中,用户设备UE执行的步骤包括:
在步骤601,从例如基站接收PCFICH中携带的CFI。例如,从子帧 的第一个OFDM符号中预定义的资源元素集合中接收所述PCFICH中携带的所述CFI。
在步骤603,根据所述CFI的值是否为预设值,确定与子帧中的控制区域、资源映射、和/或小区的接入有关的指示信息,例如,若接收到的所述CFI的值等于一个预设值,则确定为下面中的一个或多个:
·不传输PDCCH。
·不传输PHICH。
·MPDCCH的起始OFDM符号的位置是0(即子帧中的第一个符号,也称为符号0)。
·PDSCH的起始OFDM符号的位置是0(即子帧中的第一个符号,也称为符号0)。
·小区是eMTC专用小区,例如只允许MTC UE接入,又如只允许类别M1(Category M1)的UE接入,又如只允许类别M2(Category M2)的UE接入,又如只允许类别M1或者类别M2的UE接入。
可选地,所述预设值可以等于4。
可选地,本发明的实施例六中所提到的“不传输”可以替换为“不支持”。
可选地,本发明的实施例六中所提到的PDSCH是不携带SIB1-BR的PDSCH。
可选地,所述起始OFDM符号的位置可以是起始OFDM符号的缺省位置。例如,所述起始OFDM符号的位置可以通过其他消息进行重新配置。
可选地,本发明的实施例六中所提到的PCFICH只在偶数系统帧的子帧5(假设一个系统帧的第一个子帧为子帧0)中传输。
可选地,本发明的实施例六中,除偶数系统帧的子帧5(假设一个系统帧的第一个子帧为子帧0)以外的所有其他子帧中都不传输PCFICH。
可选地,本发明的实施例六中的UE为MTC UE。
[实施例七]
图7是示出了根据本发明的实施例七的由用户设备执行的方法的流程 图。
在本发明的实施例七中,用户设备UE执行的步骤包括:
在步骤701,从例如基站接收PCFICH中携带的CFI。例如,从子帧的第一个OFDM符号中预定义的资源元素集合中接收所述PCFICH中携带的所述CFI。
在步骤703,若接收到的所述CFI的值等于一个预设值,则执行与资源映射有关的处理,例如,执行下面中的一个或多个:
·应用MPDCCH的起始OFDM符号的位置等于0,例如,在将MPDCCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,所映射的资源元素在一个子帧的第一个时隙中的符号编号大于或等于0。
·在将MPDCCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,PCFICH所占用的资源元素不计算在所述资源元素内。
·应用PDSCH的起始OFDM符号的位置等于0,例如,在将PDSCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,所映射的资源元素在一个子帧的第一个时隙中的符号编号大于或等于0。
·在将PDSCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,PCFICH所占用的资源元素不计算在所述资源元素内。
可选地,所述预设值可以等于4。
可选地,本发明的实施例七中所提到的PDSCH是不携带SIB1-BR的PDSCH。
可选地,所述起始OFDM符号的位置可以是起始OFDM符号的缺省位置。例如,所述起始OFDM符号的位置可以通过其他消息进行重新配置。
可选地,本发明的实施例七中所提到的PCFICH只在偶数系统帧的子帧5(假设一个系统帧的第一个子帧为子帧0)中传输。
可选地,本发明的实施例七中,除偶数系统帧的子帧5(假设一个系 统帧的第一个子帧为子帧0)以外的所有其他子帧中都不传输PCFICH。
可选地,本发明的实施例七中的UE为MTC UE。
根据以上说明的各实施例,能够使用户设备加速小区选择和节省耗电。例如,能够使非MTC UE尽快识别禁止接入的eMTC独立部署小区,或者使MTC UE尽快识别允许接入的小区并执行相应的处理,从而加速小区选择和节省耗电。
[实施例八]
图8是示出了根据本发明的实施例八的由用户设备执行的方法的流程图。
在本发明的实施例八中,用户设备UE执行的步骤包括:
在步骤801,从例如基站接收RRC消息。其中,所述RRC消息可以是UE特定(UE specific)的RRC消息,也可以是小区特定(cell specific)的RRC消息。
在步骤803,根据接收到的所述RRC消息中的一个或者多个IE或者一个IE的一部分,确定与资源映射有关的指示信息,例如,确定下面的指示信息中的一个或者多个:
·MPDCCH的起始OFDM符号的位置,例如取值可以是0,或者1,或者2,或者3,或者4。可选地,在下行系统带宽大于10个物理资源块时的取值可以是0,或者1,或者2,或者3,在下行系统带宽小于或等于10个物理资源块时可以是0,或者2,或者3,或者4。
·PDSCH的起始OFDM符号的位置,例如取值可以是0,或者1,或者2,或者3,或者4。可选地,在下行系统带宽大于10个物理资源块时的取值可以是0,或者1,或者2,或者3,在下行系统带宽小于或等于10个物理资源块时可以是0,或者2,或者3,或者4。
其中,
·所述PDSCH可以是不携带SIB1-BR的PDSCH。
·所述MPDCCH的起始OFDM符号的位置和所述PDSCH的起始OFDM符号的位置可以相同,也可以不同。
可选地,在步骤805,根据在步骤803中所接收的所述指示信息,执行与资源映射有关的处理,例如,执行下面的动作中的一个或者多个:
·应用所指示的MPDCCH的起始OFDM符号的位置,例如,在将MPDCCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,所映射的资源元素在一个子帧的第一个时隙中的符号编号大于或等于所述所指示的MPDCCH的起始OFDM符号的位置。
·应用所指示的PDSCH的起始OFDM符号的位置,例如,在将PDSCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,所映射的资源元素在一个子帧的第一个时隙中的符号编号大于或等于所述所指示的PDSCH的起始OFDM符号的位置。
可选地,本发明的实施例八中的UE为MTC UE。
[实施例九]
图9是示出了根据本发明的实施例九的由用户设备执行的方法的流程图。
在本发明的实施例九中,用户设备UE执行的步骤包括:
在步骤901,从例如基站接收RRC消息。其中,所述RRC消息可以是UE特定(UE specific)的RRC消息,也可以是小区特定(cell specific)的RRC消息。
在步骤903,根据接收到的所述RRC消息中的一个或者多个IE或者一个IE的一部分,确定与资源映射有关的指示信息,例如,确定下面的指示信息中的一个或者多个:
·在将MPDCCH的调制符号(可选地,在经过层映射和预编码等操作之后)映射到资源元素时,PCFICH所占用的资源元素不计算在所述资源元素内。
·在将PDSCH的调制符号(可选地,在经过层映射和预编码等操作 之后)映射到资源元素时,PCFICH所占用的资源元素不计算在所述资源元素内。
可选地,本发明的实施例九中所提到的PCFICH只在偶数系统帧的子帧5(假设一个系统帧的第一个子帧为子帧0)中传输。
可选地,本发明的实施例九中,除偶数系统帧的子帧5(假设一个系统帧的第一个子帧为子帧0)以外的所有其他子帧中都不传输PCFICH。
可选地,本发明的实施例九中的UE为MTC UE。
根据实施例八和实施例九,能够使基站对用户设备UE分别配置不同信道的资源映射方式,并执行相应的处理,从而能够更灵活有效地利用通信资源。
上述的各实施例、实施方式,在不发生矛盾的情况下能够相互组合。例如,实施例六和实施例七可以结合在一起使用。此时,若接收到的所述CFI的值等于一个预设值,则一个MTC UE可以既执行实施例六中的操作,也执行实施例七中的操作。又如,实施例八和实施例九可以结合在一起使用。此时,一个MTC UE可以根据RRC消息1的指示执行实施例八中的操作,根据RRC消息2的指示执行实施例九中的操作,其中,RRC消息1和RRC消息2可以是同一条RRC消息,也可以是不同的RRC消息。
在上述的各实施例、实施方式中,小区可以指UE正在尝试接入的小区,也可以指当前服务小区(serving cell),也可以指切换过程中的目标服务小区。
图10是表示本发明所涉及的用户设备UE的框图。如图10所示,该用户设备UE100包括处理器1001和存储器1002。处理器1001例如可以包括微处理器、微控制器、嵌入式处理器等。存储器1002例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器1002上存储有程序指令。该指令在由处理器1001运行时,可以执行本发明详细描述的由用户设备执行的上述方法。
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器系统中。
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机系统读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机系统”可以是嵌入在该设备中的计算机系统,可以包括操作系统或硬件(如外围设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如,单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器,也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路,也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下,本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。
此外,本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例,但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备,如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。
如上,已经参考附图对本发明的实施例进行了详细描述。但是,具体的结构并不局限于上述实施例,本发明也包括不偏离本发明主旨的任何设计改动。另外,可以在权利要求的范围内对本发明进行多种改动,通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外,上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (10)

  1. 一种由用户设备执行的方法,包括:
    接收无线资源控制RRC消息;
    根据所述RRC消息中的一个或者多个信息元素IE或者一个IE的一部分,确定与子帧中的控制区域和/或小区的接入有关的指示信息;和
    根据所述指示信息,执行与小区的接入和/或资源映射有关的处理。
  2. 根据权利要求1所述的方法,其中,
    所述用户设备为不支持机器类通信MTC的非MTC UE,
    所述处理包括确定小区是否禁止接入、是否需要获取系统信息块类型1即SIB1之中的至少一个处理。
  3. 根据权利要求1所述的方法,其中,
    所述用户设备为支持机器类通信MTC的MTC UE,
    所述处理包括确定机器类通信物理下行控制信道MPDCCH的起始正交频分复用OFDM符号的位置、物理下行共享信道PDSCH的起始OFDM符号的位置之中的至少一个处理。
  4. 一种由用户设备执行的方法,包括:
    接收无线资源控制RRC消息;
    根据所述RRC消息中的一个或者多个信息元素IE或者一个IE的一部分,确定与资源映射有关的指示信息;和
    根据所述指示信息,执行与小区的接入和/或资源映射有关的处理。
  5. 根据权利要求4所述的方法,其中,
    所述用户设备为不支持机器类通信MTC的非MTC UE,
    所述处理包括确定小区是否禁止接入、是否需要获取系统信息块类型1即SIB1之中的至少一个处理。
  6. 根据权利要求4所述的方法,其中,
    所述用户设备为支持机器类通信MTC的MTC UE,
    所述处理包括应用机器类通信物理下行控制信道MPDCCH和/或物理下行共享信道PDSCH的起始正交频分复用OFDM符号的位置的处理。
  7. 一种由用户设备执行的方法,包括:
    接收物理控制格式指示信道PCFICH中携带的控制格式指示CFI;和
    根据所述CFI的值是否为预设值,确定与子帧中的控制区域、资源映 射、和/或小区的接入有关的指示信息。
  8. 一种由用户设备执行的方法,包括:
    接收物理控制格式指示信道PCFICH中携带的控制格式指示CFI;和
    在所述CFI的值为预设值、且所述用户设备为支持机器类通信MTC的MTC UE的情况下,执行与资源映射有关的处理。
  9. 一种由用户设备执行的方法,其中,
    所述用户设备为支持机器类通信MTC的MTC UE,
    所述方法包括:
    接收无线资源控制RRC消息;和
    根据所述RRC消息中的一个或者多个信息元素IE或者一个IE的一部分,确定与资源映射有关的指示信息。
  10. 一种用户设备,包括:
    处理器;和
    存储器,存储有指令;
    其中,所述指令在由所述处理器运行时执行根据权利要求1至9中任一项所述的方法。
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