WO2016107518A1 - 寻呼消息的接收/发送方法及相关网络节点和用户设备 - Google Patents

寻呼消息的接收/发送方法及相关网络节点和用户设备 Download PDF

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Publication number
WO2016107518A1
WO2016107518A1 PCT/CN2015/099191 CN2015099191W WO2016107518A1 WO 2016107518 A1 WO2016107518 A1 WO 2016107518A1 CN 2015099191 W CN2015099191 W CN 2015099191W WO 2016107518 A1 WO2016107518 A1 WO 2016107518A1
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Prior art keywords
physical resource
paging message
user equipment
physical
resource block
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PCT/CN2015/099191
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English (en)
French (fr)
Inventor
沈兴亚
肖芳英
刘仁茂
Original Assignee
夏普株式会社
沈兴亚
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Application filed by 夏普株式会社, 沈兴亚 filed Critical 夏普株式会社
Priority to US15/533,461 priority Critical patent/US20170339667A1/en
Publication of WO2016107518A1 publication Critical patent/WO2016107518A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of wireless communication technologies. More specifically, the present invention relates to a method of receiving/transmitting a paging message and associated network node/user equipment.
  • LTE Long Term Evolution
  • 3GPP 3rd Generation Partnership Project
  • OFDMA orthogonal frequency division multiple access
  • MIMO multiple antenna
  • the Release 10 version of 3GPP has been officially recognized and tested by the International Telecommunication Union as the fourth-generation global mobile communication standard LTE-Advanced.
  • carrier aggregation (CA) and relay technologies are introduced to enhance the uplink/downlink MIMO technology while supporting the deployment of heterogeneous networks (HetNet).
  • HetNet heterogeneous networks
  • MTC Machine Type Communication
  • MTC is a data communication service that does not require human involvement.
  • Large-scale deployment of MTC user equipment can be used in security, tracking, billing, measurement, and consumer electronics.
  • Applications include video surveillance, supply chain tracking, smart meters, and remote monitoring.
  • MTC user equipment requires lower power consumption, supports lower data transmission rates and lower mobility.
  • the LTE system is mainly aimed at human-to-human (H2H) communication services. Therefore, the key to achieving the scale competitive advantage and application prospect of MTC services lies in the low cost and low complexity of LTE networks supporting low cost MTC devices.
  • MTC user equipment needs to be installed in the basement of the residential building or protected by insulated foil, metal window or thick wall of traditional buildings, compared to conventional equipment terminals (such as mobile phones, tablets, etc.) in LTE networks.
  • the air interface will obviously suffer more severe penetration losses.
  • 3GPP decided to study the scheme design and performance evaluation of LTE network to provide additional 20dB/15dB coverage enhancement service for MTC user equipment. It is worth noting that MTC user equipment located in poor network coverage area has such characteristics: very low data transmission rate, very Loose delay requirements and limited mobility.
  • the LTE network can further optimize some signaling and/or channels to support the MTC user equipment.
  • 3GPP requires certain LTE network coverage enhancements for newly defined MTC user equipment and other user equipment running MTC services (eg, very relaxed delay requirements), where a 15 dB network is provided for LTE Frequency Division Duplex (FDD) networks. Coverage enhancement. In addition, not all user devices that use MTC services require the same network coverage enhancement.
  • LTE network coverage enhancements for newly defined MTC user equipment and other user equipment running MTC services (eg, very relaxed delay requirements), where a 15 dB network is provided for LTE Frequency Division Duplex (FDD) networks. Coverage enhancement.
  • FDD Frequency Division Duplex
  • Non-Patent Document RP-140990 New Work Item on Even Lower.
  • Complexity and Enhanced Coverage LTE UE for MTC, Ericsson, NSN In the description of the working item, the LTE Rel-13 system needs to support the uplink and downlink 1.4MHz radio frequency bandwidth of the MTC user equipment (User Equipment, UE, hereinafter referred to as the narrowband MTC UE) to work in any system bandwidth (for example, 1.4MHz, 3MHz). , 5MHz, 10MHz, 15MHz, 20MHz, etc.), and provide coverage enhancement for this type of MTC users.
  • User Equipment, UE User Equipment
  • the narrowband MTC UE MTC user equipment
  • 5MHz, 10MHz, 15MHz, 20MHz, etc. 5MHz, 10MHz, 15MHz, 20MHz, etc.
  • Reducing the energy consumption of MTC user equipment is one of the main objectives of this work project.
  • the coverage enhancement design and configuration of the physical layer channel such as (E)PDCCH/PDSCH/PUCCH/PUSCH is a work that needs to be standardized, according to the discussion of the 3GPP RAN1#74 conference
  • any physical channel that needs to be repeatedly transmitted depends on the base station side.
  • the combined demodulation of a large amount of duplicate data by the MTC user equipment introduces a delay of 2 to 10 seconds. This delay increases the power consumption of the MTC user equipment.
  • the transmission for the MTC User Equipment data channel that needs to be covered should be after the control channel transmission is completed.
  • a control channel may not be needed for paging message transmission that needs to cover the enhanced MTC user equipment.
  • the low complexity MTC UE has similar information transmission mechanism to the coverage enhanced MTC user equipment, it is necessary to design an MTC for the coverage enhanced MTC user equipment and/or low complexity or low cost.
  • the paging message transmission mechanism of the user equipment Therefore, in Rel-12 and later versions, paging message transmission for MTC user equipment in coverage enhanced mode and/or low complexity or low cost MTC user equipment needs to be re-standardized.
  • the present invention is directed to providing a paging message transmission mechanism for, for example, coverage enhanced MTC user equipment and/or low complexity or low cost MTC user equipment.
  • a method for a user equipment to receive a paging message includes receiving an indication of a physical resource block set for transmitting the paging message, wherein an index of the physical resource block set in a subframe is determined according to a level of the paging message; The paging message is received on the indicated set of physical resource blocks.
  • a method for a network node to send a paging message includes: determining an index of a physical resource block set for transmitting the paging message in a subframe according to a level of the paging message; and notifying a user equipment that is a receiver of the paging message An indication of a set of physical resource blocks, and transmitting the paging message on the determined set of physical resource blocks.
  • a user equipment includes: a receiving unit, configured to receive an indication of a physical resource block set for transmitting the paging message, and to receive the paging message on the indicated physical resource block set, where The index of the physical resource block set in the subframe is determined according to the level of the paging message.
  • a network node includes: a block set index determining unit, configured to determine, according to a level of the paging message, an index of a physical resource block set for transmitting the paging message in a subframe, and a sending unit, to serve as the seek And notifying, by the user equipment of the receiver of the call message, an indication of the physical resource block set determined by the block set index determining unit, and for transmitting the paging message on the determined physical resource block set.
  • the above described solution of the present invention is simple and easy, and since the parameters (e.g., index) of the physical resource block used to transmit the paging message depend on the level of the paging message, the paging message level can also be used to cover the MTC user equipment. Enhanced, so the scheme is applicable to both paging message transmissions that cover enhanced MTC user equipment and/or low complexity or low cost MTC user equipment.
  • FIG. 1 shows a flow chart of a method of receiving a paging message in accordance with the present invention
  • FIG. 2 shows a flow chart of a method of transmitting a paging message in accordance with the present invention
  • Figure 3 shows a schematic block diagram of a user equipment for receiving a paging message in accordance with the present invention
  • Figure 4 shows a schematic block diagram of a base station for transmitting a paging message in accordance with the present invention
  • Figure 5 shows a schematic diagram of the same size resource block set occupied by different levels of paging messages
  • FIG. 6 is a schematic diagram showing a correspondence relationship between paging messages of different levels and corresponding resource block start position indexes
  • Figure 7 is a diagram showing a different size resource block set occupied by different levels of paging messages
  • FIG. 8 is a schematic diagram showing a correspondence relationship between different levels of paging messages and sizes of corresponding occupied resource block sets
  • FIG. 9 is another schematic diagram showing the correspondence between different paging levels and corresponding resource block start position indexes.
  • FIG. 10 shows a schematic diagram of dividing a system band into a plurality of sub-bands.
  • the embodiments of the present invention are specifically described below with the LTE mobile communication system and its subsequent evolved versions as example application environments. However, it should be noted that the present invention is not limited to the following embodiments, but can be applied to more other wireless communication systems, such as future 5G cellular communication systems or other existing communication systems, as long as it is required to provide simultaneous coverage.
  • a paging message transmission mechanism that enhances MTC user equipment and/or low complexity or low cost MTC user equipment.
  • FIG. 1 illustrates a paging message receiving method in accordance with one embodiment of the present invention.
  • the user equipment receives an indication of a set of physical resource blocks for transmitting a paging message, wherein the index of the physical resource block set in the subframe is determined according to the level of the paging message.
  • the user equipment receives a paging message on the indicated set of physical resource blocks.
  • the level of the paging message is obtained by one of the following modes: by the base station by broadcast system information and/or user equipment specific radio resource control signaling configuration; by the network side by NAS signaling configuration And determined by the user equipment based on its measurement results.
  • the index of the physical resource block set in the subframe refers to the index of the starting resource block of the physical resource block set in the subframe.
  • the size of the set of physical resource blocks is the same for different levels of paging messages.
  • the size of the set of physical resource blocks is determined according to the level of the paging message.
  • the level of the paging message is further used to determine one or more physical downlink shared channels, a physical uplink shared channel, a physical downlink control channel, and/or an enhanced physical downlink control channel, and a physical uplink control channel. And the number of repetitions of the physical random access channel.
  • the level of the paging message is further used to determine one or more physical downlink shared channels, a physical uplink shared channel, a physical downlink control channel, and/or an enhanced physical downlink control channel, and a physical uplink control channel.
  • the bundling size is the transmission time interval of the physical random access channel.
  • receiving an indication of a set of physical resource blocks for transmitting a paging message comprises: by broadcast system information and/or user equipment dedicated radio resource control (UE dedicated Radio Resource Control) signaling Receiving, by the base station, an index of the physical resource block set in the subframe and/or a size of the physical resource block set; or receiving, by the non-access stratum (NAS) signaling, the index of the physical resource block set in the subframe from the network side device and/or Or the size of the physical resource block set.
  • UE dedicated Radio Resource Control user equipment dedicated radio resource control
  • the system bandwidth used by the user equipment includes six physical resource blocks.
  • the physical resource block set is a subset of the system bandwidth
  • the system bandwidth when the system bandwidth is greater than six physical resource blocks, the system bandwidth may include multiple sub-bands. Each of the plurality of sub-bands contains no more than six physical resource blocks. For example, when the number of physical resource blocks included in the system bandwidth can be divisible by 6, each of the plurality of sub-bands includes 6 physical resource blocks. However, when the number of physical resource blocks included in the system bandwidth cannot be divisible by 6, one of the plurality of sub-bands may contain less than six physical resource blocks, and the other sub-bands may each include six physical resource blocks. .
  • Other sub-band allocation methods may also exist, for example, other physical resource blocks than 6 may be used in other communication systems.
  • the scheme of the above-mentioned scheme can be used to determine the starting location index of the resource block set for the paging message in the subband.
  • size the invention is not limited by the number of specific resource blocks included in the system bandwidth/subband.
  • the paging message is received on a sub-band determined by the network node (e.g., base station or network side) in multiple sub-bands.
  • the network node e.g., base station or network side
  • FIG. 2 illustrates a paging message transmitting method on a network node side according to an embodiment of the present invention.
  • the method includes: Step 210, determining an index of a physical resource block set for transmitting a paging message in a subframe according to a level of the paging message; and step 220, serving as a paging message
  • the user equipment of the receiver notifies the indication of the physical resource block set; and in step 230, the paging message is sent on the determined set of physical resource blocks.
  • the level of the paging message is obtained by one of the following means: pre-stored by the network node, notified by the superior network node (eg, if the network node is a base station, passed by the network side) The S1 paging message indicates); and the user equipment determines and notifies the network node according to the measurement result thereof.
  • the index of the physical resource block set in the subframe refers to the index of the starting resource block of the physical resource block set in the subframe.
  • the size of the set of physical resource blocks is the same for different levels of paging messages.
  • the size of the set of physical resource blocks is determined according to the level of the paging message.
  • the level of the paging message is further used to determine one or more physical downlink shared channels, a physical uplink shared channel, a physical downlink control channel, and/or an enhanced physical downlink control channel, and a physical uplink control channel. And the number of repetitions of the physical random access channel.
  • the level of the paging message is further used to determine one or more physical downlink shared channels, a physical uplink shared channel, a physical downlink control channel, and/or an enhanced physical downlink control channel, and a physical uplink control channel.
  • the bundling size is the transmission time interval of the physical random access channel.
  • notifying the user equipment that is the recipient of the paging message of the indication of the set of physical resource blocks includes: if the network node is a base station, controlled by broadcast system information and/or user equipment-specific radio resources Transmitting, to the user equipment, the index of the physical resource block set in the subframe and/or the size of the physical resource block set; or if the network node is a network side device, sending the physical resource block set to the user equipment by using non-access stratum signaling The size of the index and/or physical resource block set in the subframe.
  • the base station may also use other group sending mechanisms (for example, a multicast mechanism or the like) to transmit an index of a physical resource block set in a subframe.
  • the system bandwidth allocated by the network node to the user equipment includes six physical resource blocks.
  • the physical resource block set is a subset of the system bandwidth.
  • the system bandwidth is divided into multiple sub-bands including no more than 6 physical resource blocks, and determined.
  • FIG. 3 illustrates a user equipment for transmitting a paging message in accordance with an embodiment of the present invention.
  • the user equipment at least includes: a receiving unit 310, configured to receive an indication of a physical resource block set for sending a paging message, and configured to receive a paging message on the indicated physical resource block set, where the physical resource block
  • the index set in the subframe is determined according to the level of the paging message.
  • the level of the paging message is configured by the base station through broadcast system information and/or user equipment-specific radio resource control signaling or by the network side through NAS signaling and received by the receiving unit 310.
  • the user sets A measurement unit 320 for measuring a channel state, and a level determination unit 330 for determining a level of the paging message based on the measurement result of the measurement unit are also included.
  • the index of the physical resource block set in the subframe refers to the index of the starting resource block of the physical resource block set in the subframe.
  • the size of the set of physical resource blocks is the same for different levels of paging messages.
  • the size of the physical resource block set is determined by the network node (which may be a base station or a network side device such as a Mobility Management Entity (MME) according to different implementations, according to the level of the paging message, and Received by the receiving unit 310 by broadcast system information and/or user equipment specific radio resource control signaling.
  • MME Mobility Management Entity
  • the indication of the set of physical resource blocks may include an index of the physical resource block set in the subframe and a size of the physical resource block set.
  • the receiving unit 310 is further configured to receive an index of a physical resource block set in a subframe from a base station by using broadcast system information and/or user equipment-specific radio resource control (UE dedicated RRC) signaling. / or the size of the physical resource block set.
  • UE dedicated RRC user equipment-specific radio resource control
  • the receiving unit 310 is further configured to receive, by the non-access stratum signaling, the index of the physical resource block set in the subframe and/or the size of the physical resource block set from the network side device.
  • the system bandwidth used by the user equipment includes six physical resource blocks, and the physical resource block set is a subset of the system bandwidth.
  • the system bandwidth used by the user equipment when the system bandwidth used by the user equipment is greater than six physical resource blocks, the system bandwidth includes a plurality of sub-bands, each of the plurality of sub-bands comprising no more than six physical resource blocks.
  • the paging message is received by the receiving unit 310 on one sub-band determined by the network node (base station or network side) in the plurality of sub-bands.
  • the user equipment further includes a memory 340 for storing various information received by the receiving unit 310, such as a paging message, a size of a physical resource block set, and a physical resource block set in a subframe. Index and other information received by user equipment.
  • the memory 350 may also store information used or output by the measurement unit 320, the level determination unit 330, such as the measurement result of the measurement unit 320, in which case the level determination unit 330 may obtain the measurement result from the memory 350.
  • the memory 350 may also store information to be transmitted by the transmitting unit 340, such as the level of the paging message determined by the level determining unit 330.
  • Figure 4 illustrates a network node transmitting a paging message in accordance with an embodiment of the present invention.
  • the network node at least includes: a block set index determining unit 410, configured to determine an index of a physical resource block set for transmitting a paging message in a subframe according to a level of the paging message; and a sending unit 420, configured to The user equipment of the recipient of the call message notifies the indication of the physical resource block set determined by the block set index determining unit 410, and is configured to transmit a paging message on the determined set of physical resource blocks.
  • the network node further includes a receiving unit 430.
  • the level of the paging message is pre-stored by the network node, or is notified by the upper-level network node, or determined by the user equipment according to the measurement result thereof and notified to the network node, and received by the receiving unit 430.
  • the index of the physical resource block set in the subframe refers to the index of the starting resource block of the physical resource block set in the subframe.
  • the size of the set of physical resource blocks is the same for different levels of paging messages.
  • the network node further includes: a block set size determining unit 440, configured to determine a size of the physical resource block set according to a level of the paging message.
  • the network node further includes: a repetition number determining unit 450, configured to determine one or more physical downlink shared channels, a physical uplink shared channel, a physical downlink control channel, and/or according to a level of the paging message. The number of repetitions of the enhanced physical downlink control channel, the physical uplink control channel, and the physical random access channel.
  • a repetition number determining unit 450 configured to determine one or more physical downlink shared channels, a physical uplink shared channel, a physical downlink control channel, and/or according to a level of the paging message. The number of repetitions of the enhanced physical downlink control channel, the physical uplink control channel, and the physical random access channel.
  • the network node further includes: a bundle size determining unit 460, configured to determine one or more physical downlink shared channels, physical uplink shared channels, physical downlink control channels, and/or according to a level of the paging message.
  • the transmitting unit 420 transmits the physical resource block set to the subframe in the subframe by broadcasting system information and/or user equipment-specific radio resource control (UE dedicated RRC) signaling.
  • UE dedicated RRC user equipment-specific radio resource control
  • the size of the resource block set if the network node is a base station, the transmitting unit 420 transmits the physical resource block set to the subframe in the subframe by broadcasting system information and/or user equipment-specific radio resource control (UE dedicated RRC) signaling.
  • UE dedicated RRC user equipment-specific radio resource control
  • the system bandwidth allocated by the network node to the user equipment includes six physical resource blocks.
  • the set of physical resource blocks is a subset of the system bandwidth.
  • the network node further includes: a subband dividing unit 470, configured to divide the system bandwidth into not included when the network bandwidth allocated by the network node for the user equipment is greater than 6 physical resource blocks. a plurality of sub-bands of the six physical resource blocks; and a sub-band determining unit 480, configured to determine a sub-band of the plurality of sub-bands divided by the sub-band dividing unit 470 to send a paging message to the user equipment frequency band.
  • a subband dividing unit 470 configured to divide the system bandwidth into not included when the network bandwidth allocated by the network node for the user equipment is greater than 6 physical resource blocks. a plurality of sub-bands of the six physical resource blocks
  • a sub-band determining unit 480 configured to determine a sub-band of the plurality of sub-bands divided by the sub-band dividing unit 470 to send a paging message to the user equipment frequency band.
  • the network node also includes a memory 490.
  • the memory 490 may store information to be transmitted by the transmitting unit 420, such as a paging message, and may also store information received by the receiving unit 430, such as the level of the paging message received by the receiving unit 430 from the network side (e.g., MME) or the user equipment. .
  • the memory 490 may also store information or output required by the block set index determining unit 410, the block set size determining unit 440, the repetition number determining unit 450, the bundling size determining unit 460, the subband dividing unit 470, the subband determining unit 480, and the like. Information.
  • the foregoing network node of the present invention may be a base station, or may be a network side device, such as a mobility management entity (MME) on the network side.
  • MME mobility management entity
  • it may also be any network commonly used by those skilled in the art to configure transmission/mobility parameters.
  • Side equipment may be any network commonly used by those skilled in the art to configure transmission/mobility parameters.
  • the invention is not limited thereto.
  • FIG. 3 and FIG. 4 are only for the purpose of making the present invention more clearly understood by those skilled in the art, and some modules unnecessary for understanding the present invention are omitted.
  • the scope of the invention should not be limited by the specific details of the drawings.
  • more modules/components may be included in the actual device, such as a display, an operation and maintenance interface (for the network node in FIG. 4), an input and output interface, and the like. The invention does not limit these.
  • FIGS. 1 and 2 The method illustrated in FIGS. 1 and 2 and the apparatus illustrated in FIGS. 3 and 4 will be explained in more detail below with reference to FIGS. 5 through 10. It should be noted that the determination and transmission of most information in the present invention may be performed by the base station or by the network side device. Therefore, the term base station, network side device (such as MME), and network node can be used interchangeably in this specification unless otherwise specified. Moreover, as noted above, while the present invention is primarily directed to additional coverage enhancement or low complexity/low cost MTC user equipment, it is equally applicable to other user equipment that supports delay tolerant services and/or requires certain coverage enhancements. .
  • the uplink and downlink physical channels need to be repeatedly transmitted multiple times to meet the coverage enhancement requirement of the channel.
  • the degree of channel coverage enhancement required by UEs in different geographical locations is different, resulting in repeated transmission of physical channels of UEs in different geographical locations. The number of times is different. Therefore, the degree of coverage enhancement of the physical channel can be divided into several different coverage enhancement levels.
  • the physical channels of different coverage enhancement levels require different numbers of repeated transmissions.
  • the physical channel can be divided into four coverage enhancement levels (CE0, CE1, CE2, and CE3), and each coverage enhancement level corresponds to different coverage enhancement compensation required for the physical channel.
  • CE0 refers to coverage enhancement level 0.
  • CE1 refers to coverage enhancement level 1, that is, for example, 1 to 5 dB coverage enhancement is required, and the physical channel requires approximately several repeated transmissions
  • CE2 refers to coverage enhancement level 2, that is, for example, 6 is required.
  • ⁇ 10dB coverage enhancement the physical channel requires approximately ten times of repeated transmission
  • CE3 refers to coverage enhancement level 3, that is, for example, 11-15dB coverage enhancement is required, and the physical channel requires approximately dozens of repeated transmissions.
  • the technical solution of the present invention is not limited to four coverage enhancement levels, but more or less coverage enhancement levels may be employed as needed.
  • the number of repetitions of the above physical channels is merely an example given by those skilled in the art to understand the present invention.
  • the number of repetitions used in a specific system is not limited to the above-mentioned number of times, but may be based on system requirements/limitations ( For example, system resource limits) choose more or fewer times.
  • a network node e.g., a base station
  • RBgroups resource block sets
  • a resource block set refers to a collection of physical resource blocks occupied by a paging message on a subframe.
  • the size of the resource block set refers to the number of resource blocks occupied by the paging message on the subframe.
  • the resource block set may be a physical resource block set (PRB group) or a virtual resource block set (VRB group), and the mapping relationship between the physical resource block and the virtual resource block may refer to 3GPP TS36.211 6.2.3.1, The invention will not be described again.
  • a virtual continuous allocation of a plurality of resource blocks that is, a virtual resource blocks of localized type, may be performed.
  • the centralized allocation of the virtual resource block set refers to directly mapping the virtual resource block n VRB to the physical resource block n PRB .
  • the size of the virtual resource block is the same as the size of the physical resource block.
  • the paging message may occupy multiple subframes, and the number of subframes occupied by different levels of paging messages may be different.
  • the subframes occupied by different user equipments may also be different.
  • the user equipment may receive the paging message on different subframes according to the user ID, or perform the subframe allocation by the method for time domain multiplexing of the paging message in the 3GPP protocol.
  • the size of the set of physical resource blocks carrying the paging message ie, the number of consecutively allocated resource blocks
  • the size of the set of physical resource blocks carrying the paging message ie, the number of consecutively allocated resource blocks
  • the size of the set of physical resource blocks carrying the paging message is predetermined and is the same for different levels of paging messages, only needed Determine the starting position of the physical resource block set.
  • an index of a set of physical resource blocks for transmitting a paging message in a subframe is determined according to the level of the paging message. This step is performed by the block set index determining unit 410 in FIG.
  • the concept that the starting position of the physical resource block set is the same as the index of the physical resource block set in the subframe can be used interchangeably.
  • the present invention proposes two schemes based on whether the sizes of resource block sets carrying different levels of paging messages are consistent.
  • the network node and the user equipment can support both ways or one of them at the same time.
  • FIG. 5 shows a case where the sizes of resource block sets carrying different levels of paging messages are identical.
  • the system bandwidth is 6 physical resource block sizes, and the size of the resource block set carrying different levels of paging messages is the same, and the starting position of the corresponding resource block set is determined by the base station and/or the network side. (e.g., MME) configuration, the principle of which may be to utilize physical resource blocks in a subframe as much as possible, or other principles that are conceivable or commonly used by those skilled in the art.
  • MME Mobility Management Entity
  • the relationship between the starting position of the resource block set and the paging message of different levels may be: the starting position index of the resource block set corresponding to the paging message covering the enhanced level 0 is 0 or 4.
  • the starting position index of the resource block set corresponding to the paging message covering the enhanced level 1 is 1;
  • the starting position index of the resource block set corresponding to the paging message covering the enhanced level 2 is 2;
  • the starting position index of the resource block set corresponding to the message is 3.
  • the size of the corresponding resource block set carrying the paging message is, for example, 2 resource blocks, but may be other numbers larger or smaller in other examples, and may be different from FIG. Index allocation mode.
  • the level of the paging message may be configured by the base station to the user equipment through broadcast information and/or user equipment dedicated RRC signaling, or may be configured by the network side (eg, MME) to the user equipment through NAS signaling.
  • the level of the paging message may be determined by the user equipment based on its own downlink measurements. For example, the user equipment performs channel measurement by the measurement unit 320, and uses the level determination unit 330 to compare the reference signal received power (RSRP) value of the measured downlink channel with a specific threshold.
  • RSRP reference signal received power
  • the specific threshold may be a threshold specified in the 3GPP technical specification TS36.104, may be received by the user equipment from the base station/network side through the receiving unit 310, and stored in advance in the storage unit 350 of the user equipment. If the threshold is greater than or equal to the threshold, the level determining unit 330 determines that the paging message level is 0; if the threshold is less than 1 to 5 dB, it determines that the paging message level is 1; and if the threshold is less than 6 to 10 dB, determines that the paging message level is 2; If the threshold is less than 11-15 dB, the paging message level is determined to be 3.
  • the user equipment/base station/network side may store the paging message level for the next resource block set start location determination or for other purposes.
  • the network node After the block set index determining unit 410 determines the index of the physical resource block set for transmitting the paging message in the subframe, in step 220, the network node notifies the user equipment that is the receiver of the paging message to the physical resource block.
  • the indication of the set of physical resource blocks may include an index of the set of physical resource blocks determined by the block set index determining unit 410 in the subframe, and optionally a size of the set of physical resource blocks. In still other embodiments, however, the size of the set of physical resource blocks has been previously notified to the user equipment.
  • the number of resource blocks carrying different levels of paging messages may be predetermined and may be configured, for example, by the base station to the user equipment via broadcast information and/or user equipment specific RRC signaling. In other examples, the number of resource blocks carrying different levels of paging messages may be configured by the network side (eg, MME) via NAS signaling. Further, the base station may notify the index of the physical resource block set in the subframe by the broadcast system information and/or the user equipment dedicated RRC signaling; or the network side (eg, the MME) may notify the index by NAS signaling. In the present invention, the index of the resource block set carrying the paging message in the subframe has the same meaning as the index of the starting resource block in the resource blocks, and can be used interchangeably.
  • the level of the paging message may be used by the repeating number determining unit 450 of the base station to determine one or more physical downlink shared channels, a physical uplink shared channel, a physical downlink control channel, a physical uplink control channel, and physical random access. The number of repetitions of the channel.
  • the level of the paging message may be used by the base station's bundling size determining unit 460 to determine one or more physical downlink shared channels, physical uplink shared channels, physical downlink control channels, physical uplink control channels, and physical random access.
  • the TTI bundle Transmission Time Interval bundle
  • FIG. 6 shows another schematic diagram of the correspondence between different levels of paging messages and corresponding resource block start location indices.
  • the drawings are merely examples for the purpose of illustrating the invention, and the invention should not be limited thereto.
  • the paging message level may also correspond to two resource block start positions, such as indices 0 and 4, and not limited to index 0.
  • FIG. 7 shows a case where the sizes of resource block sets carrying different levels of paging messages are inconsistent.
  • the system bandwidth is 6 physical resource block sizes, and the size of the resource block set carrying different levels of paging messages is different, and the starting position of the corresponding resource block set is determined by the base station and/or Or network side (e.g., MME) configuration, the principle of which may be to utilize physical resource blocks in a subframe as much as possible, or other principles that are conceivable or commonly used by those skilled in the art.
  • MME network side
  • the relationship between the starting position of the resource block set and the paging message of different levels may be: the starting position index of the resource block set corresponding to the paging message covering the enhanced level 0 is 0; The starting position index of the resource block set corresponding to the enhanced level 1 paging message is 3; the starting position index of the resource block set corresponding to the paging message of the enhanced level 2 is 2; the paging message covering the enhanced level 3 corresponds to The starting position index of the physical resource block set is 1.
  • the sizes of resource block sets carrying different levels of paging messages are inconsistent, and thus the size of the resource block set needs to be determined.
  • This operation can be performed by the block set size determining unit 440 in FIG.
  • the number of resource blocks carrying different levels of paging messages may be: the number of resource blocks corresponding to the paging message covering the enhanced level 0 is 2; the resource block corresponding to the paging message covering the enhanced level 1
  • the number of resource blocks corresponding to the paging message of the enhancement level 2 is 4; the number of resource blocks corresponding to the paging message of the coverage enhancement level 3 is 5.
  • those skilled in the art can also select different resource block set size allocation schemes according to actual requirements (such as system resource constraints, etc.), in theory, as long as the paging message with higher coverage level is corresponding to a larger number of resource blocks.
  • FIG. 8 shows a mapping relationship between a paging message level and a resource block set size in a case where the sizes of resource block sets carrying different levels of paging messages are inconsistent.
  • FIG. 9 shows a mapping relationship between a paging message level and a resource block start position in a case where the sizes of resource block sets carrying different levels of paging messages are inconsistent.
  • these mapping relationships are merely examples for the purpose of illustrating the present invention, and the present invention should not be limited thereto.
  • the network node After the block set index determining unit 410 determines the index of the physical resource block set for transmitting the paging message in the subframe and the block set size determining unit 440 determines the size of the physical resource block set, in step 220, the network node The user equipment that is the receiver of the paging message notifies the indication of the physical resource block set.
  • the indication of the set of physical resource blocks may include an index of the set of physical resource blocks determined by the block set index determining unit 410 in the subframe and a size of the set of physical resource blocks determined by the block set size determining unit 440 .
  • step 230 the transmitting unit 420 of the network element transmits a paging message on the determined set of physical resource blocks.
  • FIG. 10 shows the process according to the invention in this case.
  • the system bandwidth can be divided into multiple sub-bands.
  • the technical solution shown in Figures 1-9 can still be performed in each sub-band.
  • the network node also needs to notify the user equipment of the division of the sub-band through the transmitting unit 430.
  • the subband can be a contiguous six physical resource blocks.
  • the division of the sub-bands may be configured by the base station to the user equipment through broadcast system information and/or user equipment-specific radio resource control signaling, or configured by the network side (eg, MME) to the user equipment through NAS signaling.
  • N the largest natural number less than M divided by 6.
  • the entire system bandwidth can be divided into N subbands with a bandwidth of 6 physical resource blocks and a subband with a bandwidth of (M-6*N) physical resource blocks.
  • M is not an integral multiple of 6
  • the sub-band has less than 6 physical resources.
  • the resource block for the paging message in the subband can still be determined using the above solution.
  • the starting position index and size of the set the invention is not limited to the number of specific resource blocks included in the system bandwidth/subband.
  • the user equipment needs to receive a paging message on a sub-band that is determined prior to configuring/determining the index of the physical resource block set in the subframe and/or the size of the physical resource block.
  • the sub-bands used by the user equipment may be determined based on the level of the paging message.
  • the UE ID may be an International Mobile Subscriber Identity (IMSI) for uniquely identifying a user in the core network. This identification is stored in the SIM card.
  • IMSI International Mobile Subscriber Identity
  • the receiving unit 310 of the user equipment receives an indication of the set of physical resource blocks for transmitting the paging message in step 110.
  • the indication may include an index of the set of physical resource blocks for receiving the paging message in the subframe.
  • the indication may also include the size of the physical resource block set.
  • the size of the physical resource block set has been determined by the network node and previously sent to the user equipment (eg, if the size of the physical resource block set is fixed for different paging message levels).
  • the user equipment may receive a paging message on the indicated set of physical resource blocks by the receiving unit 310.
  • the base station and/or the network side e.g., MME
  • the base station and/or the network side have configured the user equipment to operate to receive data on one sub-band.
  • the paging message may be transmitted on the current sub-band, and the physical resource block set for transmitting the paging message may be as described in the accompanying drawings 1 to 9 according to the present invention. The way to determine.
  • the above-described embodiments of the present invention can be implemented by software, hardware, or a combination of both software and hardware.
  • the base station and various components within the user equipment in the above embodiments may be implemented by various devices including, but not limited to, analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, and programmable processing. , Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), and more.
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • base station refers to a mobile communication data and control switching center having a large transmission power and a relatively large coverage area, including resource allocation scheduling, data reception and transmission, and the like.
  • User equipment refers to a user mobile terminal, for example, a terminal device including a mobile phone, a notebook, etc., which can perform wireless communication with a base station or a micro base station.
  • embodiments of the invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present invention.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • Such an arrangement of the present invention is typically provided as software, code and/or other data structures, or such as one or more, that are arranged or encoded on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present invention.

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Abstract

本发明提供了寻呼消息接收/发送方法以及相应网络节点/用户设备。该方法包括：接收对用于发送所述寻呼消息的物理资源块集的指示，其中，所述物理资源块集在子帧中的索引是根据所述寻呼消息的等级确定的；以及在所指示的物理资源块集上接收所述寻呼消息。根据该技术方案，可提供同时针对覆盖增强MTC用户设备和/或低复杂度或低成本的MTC用户设备的寻呼消息传输机制。

Description

寻呼消息的接收/发送方法及相关网络节点和用户设备 技术领域
本发明涉及无线通信技术领域。更具体地，本发明涉及寻呼消息的接收/发送方法以及相关网络节点/用户设备。
背景技术
第三代移动通信合作计划组织(3GPP)部署的长期演进项目(LTE)旨在提供日益多样化的未来移动通信服务，无线蜂窝通信日益成为大众生活和工作中不可或缺的一部分。在3GPP LTE的第一版(即Release 8)中，引入了正交频分多址(OFDMA)和多天线(MIMO)技术。3GPP的Release 10版本经国际电信联盟的评估和测试，正式成为了第四代全球移动通信标准LTE-Advanced。在LTE-Advanced标准中，引入了载波聚合(CA)和中继技术，增强了上行/下行MIMO技术，同时支持异构网络(HetNet)的部署。
为了满足未来家庭设备通信的市场需求和规模庞大的物联网(IOT)部署，3GPP决定在LTE及其升级版本中引入低成本机器间通信技术(MTC：Machine Type Communication)，将MTC服务由目前的GSM网络支持迁移至LTE网络支持，并定义了若干种新的LTE用户设备(UE：User Equipment)的类型，其一称之为低成本MTC用户设备(Low-cost MTC UE)，该MTC用户设备在现有LTE网络的所有双工模式中支持MTC服务，并具有这样的性能：1)单接收天线；2)下行和上行最大的传输模块大小(TBS：Transport Block Size)为1000比特；3a)下行链路数据信道的基带带宽降低为1.4MHz，下行链路控制信道的带宽与网络侧系统带宽保持一致，上行链路信道带宽以及下行链路的射频部分与现有LTE网络中的用户设备保持一致；3b)下行/上行链路控制信道和数据信道的基带带宽降低为1.4MHz。
MTC是一种不需要人为参与的数据通信服务。大规模的MTC用户设备部署，可以用于安全、跟踪、付账、测量以及消费电子等领域，具体涉及的应用包括视频监控、供货链跟踪、智能电表，远程监控等。MTC用户设备要求较低的功率消耗，支持较低的数据传输速率和较低的移动性。 目前LTE系统主要是针对人与人(H2H)的通信服务。因此，实现MTC服务的规模竞争优势及应用前景，关键环节在于LTE网络支持低成本的MTC设备能够低成本，低复杂性的工作。
一些MTC用户设备需要安装在居民楼地下室或者由绝缘箔片、金属护窗或者传统建筑物的厚墙保护的位置，相比较LTE网络中常规设备终端(如手机，平板电脑等)，这些设备的空中接口将明显遭受更严重的穿透损失。3GPP决定研究LTE网络提供MTC用户设备附加20dB/15dB覆盖增强服务的方案设计与性能评估，值得注意的是，位于糟糕网络覆盖区域的MTC用户设备具有这样的特点：非常低的数据传输速率，非常宽松的延时要求，以及有限的移动性。针对MTC用户设备特点，LTE网络可以进一步优化一些信令和/或信道用以支持MTC用户设备。3GPP要求为新定义的MTC用户设备以及其他运行MTC服务(如，非常宽松的延迟要求)的用户设备提供一定的LTE网络覆盖增强，其中，对于LTE频分双工(FDD)网络提供15dB的网络覆盖增强。另外，并不是所有的运用MTC服务的用户设备都需要相同网络覆盖增强。
在2014年6月举行的3GPP RAN#64次全会上，提出了一个新的面向Rel-13的低复杂性和覆盖增强的MTC的工作项目(参见非专利文献：RP-140990New Work Item on Even Lower Complexity and Enhanced Coverage LTE UE for MTC，Ericsson，NSN)。在该工作项目的描述中，LTE Rel-13系统需要支持上下行1.4MHz射频带宽的MTC用户设备(User Equipment，UE，以下称为窄带MTC UE)工作在任意的系统带宽(例如1.4MHz、3MHz、5MHz、10MHz、15MHz、20MHz等等)下，并且为该类MTC用户提供覆盖增强功能。在系统设计时，低成本MTC用户和覆盖增强MTC用户要采用统一的设计方案。降低MTC用户设备的能耗是该工作项目的主要目标之一。
针对3GPP LTE用户设备运行MTC业务并处于覆盖增强模式下，物理层信道如(E)PDCCH/PDSCH/PUCCH/PUSCH的覆盖增强设计与配置是一个需要标准化的工作，根据3GPP RAN1#74会议的讨论，在完成初始接入过后，任何一个需要重复传输的物理信道，其配置模式取决于基站端。而MTC用户设备合并解调大量重复数据会引入2至10秒的延迟。这样的延迟会增加MTC用户设备的耗电量。根据3GPP RAN1#74b会议的决定， 对于需要覆盖增强的MTC用户设备数据信道的传输应在控制信道传输完成之后。因此为了减少用户设备的耗电量，对于需要覆盖增强的MTC用户设备的寻呼消息传输可以不需要控制信道。同时由于低复杂度MTC用户设备(Low complexity MTC UE)与覆盖增强的MTC用户设备具有相似的信息传输机制，需要设计一种同时针对覆盖增强MTC用户设备和/或低复杂度或低成本的MTC用户设备的寻呼消息传输机制。因此在Rel-12及其之后版本中，针对覆盖增强模式下MTC用户设备和/或低复杂度或低成本的MTC用户设备的寻呼消息传输需要重新标准化。
发明内容
本发明旨在提供同时针对例如覆盖增强MTC用户设备和/或低复杂度或低成本的MTC用户设备的寻呼消息传输机制。
根据本发明的一个方案，提供了一种用户设备接收寻呼消息的方法。该方法包括：接收对用于发送所述寻呼消息的物理资源块集的指示，其中，所述物理资源块集在子帧中的索引是根据所述寻呼消息的等级确定的；以及在所指示的物理资源块集上接收所述寻呼消息。
根据本发明的另一个方案，提供了一种网络节点发送寻呼消息的方法。该方法包括：根据所述寻呼消息的等级确定用于发送所述寻呼消息的物理资源块集在子帧中的索引；向作为所述寻呼消息的接收方的用户设备通知对所述物理资源块集的指示，以及在所确定的物理资源块集上发送所述寻呼消息。
根据本发明的另一个方案，提供了一种用户设备。该用户设备包括：接收单元，用于接收对用于发送所述寻呼消息的物理资源块集的指示，以及用于在所指示的物理资源块集上接收所述寻呼消息，其中，所述物理资源块集在子帧中的索引是根据所述寻呼消息的等级确定的。
根据本发明的另一个方案，提供了一种网络节点。该基站包括：块集索引确定单元，用于根据寻呼消息的等级确定用于发送所述寻呼消息的物理资源块集在子帧中的索引，以及发送单元，用于向作为所述寻呼消息的接收方的用户设备通知对所述块集索引确定单元确定的物理资源块集的指示，以及用于在所述确定的物理资源块集上发送所述寻呼消息。
本发明的上述方案简单易行，并且由于用于发送寻呼消息的物理资源块的参数(例如索引)取决于寻呼消息的等级，而该寻呼消息等级同样可用于对MTC用户设备进行覆盖增强，因此该方案同时适用于覆盖增强MTC用户设备和/或低复杂度或低成本的MTC用户设备的寻呼消息传输。
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示出了根据本发明的接收寻呼消息的方法的流程图；
图2示出了根据本发明的发送寻呼消息的方法的流程图；
图3示出了根据本发明的用于接收寻呼消息的用户设备的示意性框图；
图4示出了根据本发明的用于发送寻呼消息的基站的示意性框图；
图5示出了不同等级的寻呼消息的占用的相同大小资源块集的示意图；
图6示出了不同等级的寻呼消息与相应的资源块起始位置索引的对应关系的示意图；
图7示出了不同等级的寻呼消息的占用的不同大小资源块集的示意图；
图8示出了不同等级的寻呼消息与相应占用的资源块集的大小的对应关系的示意图；
图9示出了不同寻呼等级与相应的资源块起始位置索引的对应关系的另一示意图；以及
图10示出了将系统频带划分为多个子频带的示意图。
具体实施方式
以下将结合附图和具体实施例，对本发明所提出的针对需要额外覆盖增强的MTC用户设备或者低复杂度/低成本MTC用户设备的寻呼消息在频域资源上的发送/接收方法、网络节点和用户设备(UE)进行详细阐述。应当注意的是，虽然本发明是针对需要额外覆盖增强或者低复杂度/低成本MTC用户设备来阐述的，但其同样也适用于其他支持延迟容忍服务和/或需要一定覆盖增强的用户设备。应当注意的是，本发明不应局限于下文所述的具体实施例。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例。然而，需要指出的是，本发明不限于以下实施例，而是可适用于更多其它的无线通信系统，例如今后的5G蜂窝通信系统或现有的其他通信系统，只要其要求提供同时针对覆盖增强MTC用户设备和/或低复杂度或低成本的MTC用户设备的寻呼消息传输机制。
图1示出了根据本发明的一个实施例的寻呼消息接收方法。在图1的步骤110中，用户设备接收对用于发送寻呼消息的物理资源块集的指示，其中，物理资源块集在子帧中的索引是根据寻呼消息的等级确定的。在步骤120中，用户设备在所指示的物理资源块集上接收寻呼消息。
在本发明的一些实施例中，寻呼消息的等级是通过以下方式之一获得的：由基站通过广播系统信息和/或用户设备专用无线电资源控制信令配置；由网络侧通过NAS信令配置；以及由用户设备根据其测量结果确定。
在本发明的一些实施例中，物理资源块集在子帧中的索引是指物理资源块集的起始资源块在子帧中的索引。
在本发明的一些实施例中，物理资源块集的大小对于不同等级的寻呼消息而言是相同的。
在本发明的另一些实施例中，物理资源块集的大小根据寻呼消息的等级确定。
在本发明的一些实施例中，寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的重复次数。
在本发明的一些实施例中，寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的传输时间间隔捆绑大小。
在本发明的一些实施例中，接收对用于发送寻呼消息的物理资源块集的指示包括：通过广播系统信息和/或用户设备专用的无线电资源控制(UE dedicated Radio Resource Control)信令从基站接收物理资源块集在子帧中的索引和/或物理资源块集的大小；或通过非接入层(NAS)信令从网络侧设备接收物理资源块集在子帧中的索引和/或物理资源块集的大小。
在本发明的一些实施例中，该用户设备使用的系统带宽包括6个物理资源块。在该情况下，物理资源块集是系统带宽的子集
然而，也可能存在系统带宽大于6个物理资源块的情况。在本发明的一些实施例中，当系统带宽大于6个物理资源块时，系统带宽可包括多个子频带。该多个子频带中的每一个包含不多于6个的物理资源块。例如，在系统带宽中包含的物理资源块的数目能够被6整除时，该多个子频带中的每一个包含6个物理资源块。然而当系统带宽中包含的物理资源块的数目不能够被6整除时，该多个子频带中的一个子频带包含的物理资源块可以小于6个，而其他子频带可以均包含6个物理资源块。也可以存在其他的子频带分配方式，例如在其他通信系统中可以使用除6之外的其他物理资源块数目。只要寻呼消息对应的物理资源块的数目小于该子频带具有的资源块的总数目，便可以使用本文上述的方案确定该子频带中用于该寻呼消息的资源块集的起始位置索引和大小，本发明不受限于系统带宽/子频带中包含的具体资源块的数目。
在上述任一情况下，寻呼消息在多个子频带中由网络节点(例如基站或网络侧)确定的一个子频带上接收。
图2示出了根据本发明的一个实施例的网络节点侧的寻呼消息发送方法。在图2所示的流程图中，该方法包括：步骤210，根据寻呼消息的等级确定用于发送寻呼消息的物理资源块集在子帧中的索引；步骤220，向作为寻呼消息的接收方的用户设备通知对物理资源块集的指示；以及步骤230，在所确定的物理资源块集上发送寻呼消息。
在本发明的一些实施例中，寻呼消息的等级是通过以下方式之一获得的：由网络节点预先存储，由上级网络节点通知(例如，在网络节点是基站的情况下，由网络侧通过S1寻呼消息指示)；以及用户设备根据其测量结果确定并通知网络节点。
在本发明的一些实施例中，物理资源块集在子帧中的索引是指物理资源块集的起始资源块在子帧中的索引。
在本发明的一些实施例中，物理资源块集的大小对于不同等级的寻呼消息而言是相同的。
在本发明的一些实施例中，物理资源块集的大小根据寻呼消息的等级确定。
在本发明的一些实施例中，寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的重复次数。
在本发明的一些实施例中，寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的传输时间间隔捆绑大小。
在本发明的一些实施例中，向作为寻呼消息的接收方的用户设备通知对物理资源块集的指示包括：如果网络节点是基站，通过广播系统信息和/或用户设备专用的无线电资源控制信令向用户设备发送物理资源块集在子帧中的索引和/或物理资源块集的大小；或如果网络节点是网络侧设备，通过非接入层信令向用户设备发送物理资源块集在子帧中的索引和/或物理资源块集的大小。然而本发明不限于此，例如基站也可以使用其他的群发机制(例如，多播机制等)来发送物理资源块集在子帧中的索引。
在本发明的一些实施例中，网络节点为用户设备分配的系统带宽包括6个物理资源块。在该情况下，物理资源块集是所述系统带宽的子集。
在本发明的一些实施例中，当网络节点为用户设备分配的系统带宽大于6个物理资源块时，将所述系统带宽划分为包含不多于6个物理资源块的多个子频带，以及确定所述多个子频带中要在其上向用户设备发送寻呼消息的一个子频带。
图3示出了用于根据本发明的实施例发送寻呼消息的用户设备。该用户设备至少包括：接收单元310，用于接收对用于发送寻呼消息的物理资源块集的指示，且用于在所指示的物理资源块集上接收寻呼消息，其中，物理资源块集在子帧中的索引是根据寻呼消息的等级确定的。
在本发明的一些实施例中，寻呼消息的等级是由基站通过广播系统信息和/或用户设备专用无线电资源控制信令配置或由网络侧通过NAS信令配置，并通过接收单元310接收的。在本发明的另一些实施例中，用户设 备还包括用于测量信道状态的测量单元320，以及用于根据测量单元的测量结果确定寻呼消息的等级的等级确定单元330。
在本发明的一些实施例中，物理资源块集在子帧中的索引是指物理资源块集的起始资源块在子帧中的索引。
在本发明的一些实施例中，物理资源块集的大小对于不同等级的寻呼消息而言是相同的。
在本发明的一些实施例中，物理资源块集的大小由网络节点(根据不同的实现，可以是基站或网络侧设备，如移动性管理实体(MME))根据寻呼消息的等级确定，并通过广播系统信息和/或用户设备专用无线电资源控制信令由接收单元310接收。
对物理资源块集的指示可以包括物理资源块集在子帧中的索引以及物理资源块集的大小。在本发明的一些实施例中，接收单元310还用于通过广播系统信息和/或用户设备专用的无线电资源控制(UE dedicated RRC)信令从基站接收物理资源块集在子帧中的索引和/或物理资源块集的大小。或者在其他一些实施例中，接收单元310还用于通过非接入层信令从网络侧设备接收物理资源块集在子帧中的索引和/或物理资源块集的大小。
在本发明的一些实施例中，用户设备使用的系统带宽包括6个物理资源块，以及物理资源块集是所述系统带宽的子集。
在本发明的一些实施例中，当用户设备使用的系统带宽大于6个物理资源块时，系统带宽包括多个子频带，该多个子频带中的每一个包含不多于6个的物理资源块。在该情况下，寻呼消息由接收单元310在所述多个子频带中由网络节点(基站或网络侧)确定的一个子频带上接收。
在本发明的一些实施例中，用户设备还包括存储器340，用于存储接收单元310接收到的各种信息，例如寻呼消息、物理资源块集的大小、物理资源块集在子帧中的索引以及其他用户设备接收到的信息等。存储器350还可以存储测量单元320、等级确定单元330所使用或输出的信息，例如测量单元320的测量结果，在该情况下，等级确定单元330可从存储器350获得该测量结果。存储器350还可以存储发送单元340要发送的信息，例如等级确定单元330确定的寻呼消息的等级。
图4示出了根据本发明的实施例发送寻呼消息的网络节点。图4示出 的网络节点至少包括：块集索引确定单元410，用于根据寻呼消息的等级确定用于发送寻呼消息的物理资源块集在子帧中的索引；以及发送单元420，用于向作为寻呼消息的接收方的用户设备通知对块集索引确定单元410确定的物理资源块集的指示，以及用于在所确定的物理资源块集上发送寻呼消息。
在本发明的一些实施例中，网络节点还包括接收单元430。其中，寻呼消息的等级由网络节点预先存储，或者由上级网络节点通知，或由用户设备根据其测量结果确定并通知网络节点，并由接收单元430接收。
在本发明的一些实施例中，物理资源块集在子帧中的索引是指物理资源块集的起始资源块在子帧中的索引。
在本发明的一些实施例中，物理资源块集的大小对于不同等级的寻呼消息而言是相同的。
在本发明的一些实施例中，网络节点还包括：块集大小确定单元440，用于根据寻呼消息的等级确定物理资源块集的大小。
在本发明的一些实施例中，网络节点还包括：重复次数确定单元450，用于根据寻呼消息的等级确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的重复次数。
在本发明的一些实施例中，网络节点还包括：捆绑大小确定单元460，用于根据寻呼消息的等级确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和、或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的传输时间间隔捆绑大小。
在本发明的一些实施例中，如果网络节点是基站，发送单元420通过广播系统信息和/或用户设备专用的无线电资源控制(UE dedicated RRC)信令向用户设备发送物理资源块集在子帧中的索引和/或物理资源块集的大小；或者如果网络节点是网络侧设备，发送单元420通过非接入层信令向用户设备发送物理资源块集在子帧中的索引和/或物理资源块集的大小。
在本发明的一些实施例中，网络节点为用户设备分配的系统带宽包括6个物理资源块。在该情况下所述物理资源块集是系统带宽的子集。
在本发明的一些实施例中，网络节点还包括：子频带划分单元470，用于当网络节点为用户设备分配的系统带宽大于6个物理资源块时，将所述系统带宽划分为包含不多于6个物理资源块的多个子频带；以及子频带确定单元480，用于确定所述子频带划分单元470划分的所述多个子频带中要在其上向用户设备发送寻呼消息的一个子频带。
在本发明的一些实施例中，网络节点还包括存储器490。存储器490可存储发送单元420要发送的信息，如寻呼消息，也可以存储接收单元430接收到的信息，例如接收单元430从网络侧(例如MME)或用户设备接收到的寻呼消息的等级。存储器490还可以存储块集索引确定单元410、块集大小确定单元440、重复次数确定单元450、捆绑大小确定单元460、子频带划分单元470、子频带确定单元480等单元所需的信息或输出的信息。
本发明的上述网络节点可以是基站，也可以是网络侧设备，例如网络侧的移动性管理实体(MME)，当然，也可以是本领域技术人员通常使用来配置传输/移动性参数的任何网络侧设备。本发明不对此进行限制。
需要注意的是，在图3和图4中描述的用户设备和网络节点仅是为了使本领域技术人员更清楚地理解本发明而作的图，其中省略了一些对理解本发明不必要的模块/组件，本发明的保护范围不应受这些附图的具体细节所限制。此外，实际的设备中可以包括更多的模块/组件，如显示器、操作维护接口(对于图4中的网络节点)、输入输出接口等等。本发明不对这些进行限制。
下面将参考图5至图10来对图1和图2中示出的方法以及图3和图4中示出的设备进行更详细地阐述。需要注意的是，本发明中多数信息的确定和发送既可以由基站完成，也可以由网络侧设备完成。因此，除非特别说明，在本说明书中可以将术语基站、网络侧设备(如MME)以及网络节点交换使用。此外，如上所述，虽然本发明主要针对需要额外覆盖增强或者低复杂度/低成本MTC用户设备来阐述的，但其同样也适用于其他支持延迟容忍服务和/或需要一定覆盖增强的用户设备。
对覆盖增强MTC UE而言，其上、下行物理信道需要多次重复发送，以满足信道的覆盖增强要求。处于不同地理位置的UE所需的信道覆盖增强程度不一样，导致处于不同地理位置的UE的物理信道所需重复发送的 次数不同。因此，可以将物理信道的覆盖增强程度分为若干个不同的覆盖增强等级。而不同覆盖增强等级的物理信道，其所需重复发送的次数不同。例如，可以将物理信道分为四个覆盖增强等级(CE0，CE1，CE2和CE3)，每个覆盖增强等级对应物理信道所需的不同覆盖增强补偿，例如，CE0指代的是覆盖增强等级0，即不需要覆盖增强；CE1指代的是覆盖增强等级1，即需要例如1～5dB覆盖增强，其物理信道大致需要数次重复传输；CE2指代的是覆盖增强等级2，即需要例如6～10dB覆盖增强，其物理信道大致需要十数次重复传输；CE3指代的是覆盖增强等级3，即需要例如11～15dB覆盖增强，其物理信道大致需要数十次重复传输。然而，需要注意的是，本发明的技术方案不限于四个覆盖增强等级，而是可以根据需要采用更多或更少的覆盖增强等级。还需要注意的是，上述物理信道的重复次数仅是为了使本领域技术人员理解本发明而给出的示例，具体系统中使用的重复次数不限于上述次数，而是可以根据系统需求/限制(例如系统资源限制)选择更多或更少的次数。
由于寻呼消息对应的控制信道不传输，因此需要给出MTC用户设备的寻呼消息在频域上的位置。在本发明的技术方案中，网络节点(例如基站)将不同等级的寻呼消息映射到不同的资源块集(RBgroup)来指示寻呼消息在频域上的位置。在本文中，资源块集指的是寻呼消息在子帧上占用的物理资源块的集合。资源块集的大小是指寻呼消息在子帧上占用的资源块的数目。此处资源块集可以是物理资源块集(PRB group)，也可以是虚拟资源块集(VRB group)，物理资源块与虚拟资源块间的映射关系可参考3GPP TS36.211 6.2.3.1，本发明不再进行赘述。在本发明的技术方案中，可以对多个资源块进行虚拟连续分配，即虚拟资源块集的集中式分配(virtual resource blocks of localized type)。此处虚拟资源块集的集中式分配指的是将虚拟资源块nVRB直接映射到物理资源块nPRB。而虚拟资源块的大小与物理资源块的大小一致。
寻呼消息可以占用多个子帧，不同等级的寻呼消息占用的子帧数目可以不同。不同的用户设备占用的子帧也可以不同。例如，用户设备可根据用户ID在不同的子帧上接收寻呼消息，或通过3GPP协议中用于寻呼消息的时域复用的方法来进行子帧分配。在本发明的一些实施例中，需要确定确定两个参数，承载寻呼消息的物理资源块集的起始位置及连续分配的 资源块数目。然而在另一些实施例中，由于承载寻呼消息的物理资源块集的大小(即，连续分配的资源块数目)被预先确定，且对于不同等级的寻呼消息而言是相同的，仅需要确定物理资源块集的起始位置。
再次返回图2，在图2的步骤210中，根据寻呼消息的等级确定用于发送寻呼消息的物理资源块集在子帧中的索引。该步骤由图4中的块集索引确定单元410执行。在本发明中，物理资源块集的起始位置与物理资源块集在子帧中的索引表达相同的概念，可相互交换使用。基于承载不同等级的寻呼消息的资源块集的大小是否一致，本发明提出了两种方案。网络节点和用户设备可同时支持两种方式或其中的一种。
图5示出了承载不同等级的寻呼消息的资源块集的大小一致的情况。如图5所示，系统带宽为6个物理资源块大小，且承载不同等级的寻呼消息的资源块集的大小是一样的，相应的资源块集的起始位置由基站和/或网络侧(例如MME)配置，其原则可以是尽量利用子帧中的物理资源块，也可以是本领域技术人员可想到或通常使用的其他原则。在图5所示的示例中，资源块集的起始位置与不同等级的寻呼消息的关系可以是：覆盖增强等级0的寻呼消息对应的资源块集的起始位置索引为0或4；覆盖增强等级1的寻呼消息对应的资源块集的起始位置索引为1；覆盖增强等级2的寻呼消息对应的资源块集的起始位置索引为2；覆盖增强等级3的寻呼消息对应的资源块集的起始位置索引为3。在图5的示例中，相应的承载寻呼消息的资源块集的大小为例如2个资源块，然而在其他示例中也可以是更大或更小的其他数目，且可以采用与图5不同的索引分配模式。
寻呼消息的等级可以由基站通过广播信息和/或用户设备专用RRC信令配置给用户设备，或者可以由网络侧(例如MME)通过NAS信令配置给用户设备。在一些示例中，寻呼消息的等级可以由用户设备根据自己的下行链路测量结果确定。例如，用户设备通过测量单元320执行信道测量，并使用等级确定单元330根据测量得到的下行信道的参考信号接收功率(RSRP)值与特定阈值比较。该特定阈值可以是在3GPP技术规范TS36.104中规定的阈值，可由用户设备通过接收单元310从基站/网络侧先行接收到的，并预先存储在用户设备的存储单元350中。如果大于或等于该阈值，则等级确定单元330确定寻呼消息等级为0；小于该阈值1～5dB，则确定寻呼消息等级为1；小于该阈值6～10dB，则确定寻呼消息等级为2； 小于该阈值11～15dB，则确定寻呼消息等级为3。
可选地，在确定寻呼消息等级之后，用户设备/基站/网络侧可存储该寻呼消息等级，以用于下一次的资源块集起始位置确定或用于其他用途。
在块集索引确定单元410确定用于发送寻呼消息的物理资源块集在子帧中的索引之后，在步骤220中，网络节点向作为寻呼消息的接收方的用户设备通知对物理资源块集的指示。在一些实施例中，该对物理资源块集的指示可包括块集索引确定单元410确定的物理资源块集在子帧中的索引，并可选地包括物理资源块集的大小。然而在另一些实施例中，物理资源块集的大小已由被预先通知给了用户设备。
承载不同等级的寻呼消息的资源块的数目可以是预定的，并例如可由基站通过广播信息和/或用户设备专用RRC信令配置给用户设备。在其他一些示例中，承载不同等级的寻呼消息的资源块的数目可以由网络侧(例如，MME)通过NAS信令配置。此外，基站可通过广播系统信息和/或用户设备专用RRC信令通知物理资源块集在子帧中的索引；或网络侧(例如，MME)可通过NAS信令通知该索引。在本发明中，子帧中承载寻呼消息的资源块集的索引与这些资源块中起始资源块的索引表达相同的含义，可以互换使用。
在一些示例中，寻呼消息的等级可被基站的重复次数确定单元450用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道，物理上行控制信道和物理随机接入信道的重复次数。
在一些示例中，寻呼消息的等级可被基站的捆绑大小确定单元460用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道，物理上行控制信道和物理随机接入信道的TTI bundle(Transmission Time Interval bundle：传输时间间隔捆绑)大小。
图6示出了不同等级的寻呼消息与相应的资源块起始位置索引的对应关系的另一示意图。然而该图仅是为说明本发明而做出的示例，本发明不应被其所限制。例如，寻呼消息等级也可以对应于两个资源块起始位置，如索引0和4，而不仅限于索引0。
图7示出了承载不同等级的寻呼消息的资源块集的大小不一致的情况。如图7所示，系统带宽为6个物理资源块大小，且承载不同等级的寻呼消息的资源块集的大小是不一样的，相应的资源块集的起始位置由基站和/ 或网络侧(例如，MME)配置，其原则可以是尽量利用子帧中的物理资源块，也可以是本领域技术人员可想到或通常使用的其他原则。在图7所示的示例中，资源块集的起始位置与不同等级的寻呼消息的关系可以是：覆盖增强等级0的寻呼消息对应的资源块集的起始位置索引为0；覆盖增强等级1的寻呼消息对应的资源块集的起始位置索引为3；覆盖增强等级2的寻呼消息对应的资源块集的起始位置索引为2；覆盖增强等级3的寻呼消息对应的物理资源块集的起始位置索引为1。
在图7示出的示例中，承载不同等级的寻呼消息的资源块集的大小不一致，因此需要对资源块集的大小进行确定。该操作可以由图4中的块集大小确定单元440执行。在一些示例中，承载不同等级的寻呼消息的资源块的数目可以是：覆盖增强等级0的寻呼消息对应的资源块的数目为2；覆盖增强等级1的寻呼消息对应的资源块的数目为3；覆盖增强等级2的寻呼消息对应的资源块的数目为4；覆盖增强等级3的寻呼消息对应的资源块的数目为5。当然，本领域技术人员也可以根据实际需求(例如系统资源限制等)选择不同的资源块集大小分配方案，理论上只要覆盖增强等级较高的寻呼消息对应更多数目的资源块即可。
图7所示情形的其他技术特征与图5所示情形相同，在此不再赘述。
图8示出了在承载不同等级的寻呼消息的资源块集的大小不一致的情况下，寻呼消息等级与资源块集大小的映射关系。图9示出了在承载不同等级的寻呼消息的资源块集的大小不一致的情况下，寻呼消息等级与资源块起始位置的映射关系。如上所述，这些映射关系都仅是为了说明本发明而做出的示例，本发明不应被其所限制。
在块集索引确定单元410确定用于发送寻呼消息的物理资源块集在子帧中的索引以及块集大小确定单元440确定该物理资源块集的大小之后，在步骤220中，网络节点向作为寻呼消息的接收方的用户设备通知对物理资源块集的指示。在一些实施例中，该对物理资源块集的指示可包括块集索引确定单元410确定的物理资源块集在子帧中的索引以及块集大小确定单元440确定的该物理资源块集的大小。
在步骤230中，网络单元的发送单元420在所确定的物理资源块集上发送寻呼消息。
然而，在3GPP LTE中，也可能存在系统带宽大于6个物理资源块的 情况。图10示出了在该情形下根据本发明的处理。如图10所示，当系统带宽大于6个物理资源块时，可将系统带宽分成多个子频带。在每一个子频带中依然可执行图1-9中所示的技术方案。在图10所示情况下，网络节点还需要通过发送单元430向用户设备通知子频带的划分。子频带可以是连续的6个物理资源块。同样地，子频带的划分可以由基站通过广播系统信息和/或用户设备专用无线电资源控制信令配置给用户设备，或者由网络侧(例如，MME)通过NAS信令配置给用户设备。
作为一般性的示例，可以假设系统带宽包含M个PRB，并可被划分成N个子频带，其中M和N需满足N＝floor(M，6)，即N是小于M除与6的最大自然数。这样整个系统带宽可划分为N个带宽大小为6个物理资源块的子频带和一个带宽大小为(M-6*N)个物理资源块的子频带。从上式可以看出，在M不是6的整倍数的情况下，可能包括子频带具有小于6个物理资源的情况。在这种情况下，只要寻呼消息对应的物理资源块的数目小于该子频带具有的资源块的总数目，依然可以使用本文上述的方案确定该子频带中用于该寻呼消息的资源块集的起始位置索引和大小，本发明不受限于系统带宽/子频带中包含的具体资源块的数目。
用户设备需要在一个子频带上接收寻呼消息，该子频带是在配置/确定物理资源块集在子帧中的索引和/或物理资源块的大小之前确定的。在本发明的一些实施例中，可以根据寻呼消息的等级来确定用户设备所使用的子频带。例如可通过以下公式：[index of sub-band]＝[UE ID]mod[the number of sub-band]来确定用户设备所使用的子频带。其中UE ID可以是国际移动用户标识(IMSI，International Mobile Subscriber Identity)，用于在核心网中唯一标识一个用户。该标识存储在SIM卡中。当然，在本发明的其他实施例中，本领域技术人员也可以使用唯一标识用户的其他可能的标识符，并对上式进行适应性修改，本发明不对此进行限制。
在用户设备侧，用户设备的接收单元310在步骤110中接收对用于发送寻呼消息的物理资源块集的指示。该指示可以包括其用于接收寻呼消息的物理资源块集在子帧中的索引。在一些情况下，该指示还可以包括物理资源块集的大小。而在另一些情况下，物理资源块集的大小已由网络节点确定并在之前发送给用户设备(例如，物理资源块集的大小对不同寻呼消息等级而言固定的情况下)。
然后，在步骤120中，用户设备可通过接收单元310在所指示的物理资源块集上接收寻呼消息。
当用户设备处于RRC CONNECT状态时，基站和/或网络侧(例如，MME)已经配置用户设备工作在一个子频带上接收数据。此时，当用户设备需要被寻呼时，该寻呼消息可在当前的子频带上传输，用于发送该寻呼消息的物理资源块集可通过根据本发明附图1至9中所述的方法来确定。
应该理解，本发明的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的基站和用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本申请中，“基站”是指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。“用户设备”是指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本发明的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本发明的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本发明实施例所述的操作(方法)。本发明的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本发明实施例所描述的技术方案。
尽管以上已经结合本发明的优选实施例示出了本发明，但是本领域的技术人员将会理解，在不脱离本发明的精神和范围的情况下，可以对本发明进行各种修改、替换和改变。因此，本发明不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (38)

  1. 一种用户设备接收寻呼消息的方法，包括：
    接收对用于发送所述寻呼消息的物理资源块集的指示，其中，所述物理资源块集在子帧中的索引是根据所述寻呼消息的等级确定的；以及
    在所指示的物理资源块集上接收所述寻呼消息。
  2. 根据权利要求1所述的方法，其中，所述寻呼消息的等级是通过以下方式之一获得的：
    由基站通过广播信息和/或用户设备专用无线电资源控制信令配置；
    由网络侧通过NAS信令配置；以及
    由所述用户设备根据其测量结果确定。
  3. 根据权利要求1所述的方法，其中，所述物理资源块集在子帧中的索引是指所述物理资源块集的起始资源块在子帧中的索引。
  4. 根据权利要求1所述的方法，其中，所述物理资源块集的大小对于不同等级的寻呼消息而言是相同的。
  5. 根据权利要求1所述的方法，其中，所述物理资源块集的大小根据所述寻呼消息的等级确定。
  6. 根据权利要求1所述的方法，其中，所述寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的重复次数。
  7. 根据权利要求1所述的方法，其中，所述寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的传输时间间隔捆绑大小。
  8. 根据权利要求1所述的方法，其中，接收对用于发送所述寻呼消息的物理资源块集的指示包括：
    通过广播系统信息和/或用户设备专用无线电资源控制信令从基站接收所述物理资源块集在子帧中的索引和/或所述物理资源块集的大小；或
    通过非接入层信令从网络侧设备接收所述物理资源块集在子帧中的 索引和/或所述物理资源块集的大小。
  9. 根据权利要求1所述的方法，其中，所述用户设备使用的系统带宽包括6个物理资源块，以及所述物理资源块集是所述系统带宽的子集。
  10. 根据权利要求1所述的方法，其中，当所述用户设备使用的系统带宽大于6个物理资源块时，所述系统带宽包括多个子频带，所述多个子频带中的每一个包含不多于6个的物理资源块，所述寻呼消息在所述多个子频带中由网络节点确定的一个子频带上接收。
  11. 一种网络节点发送寻呼消息的方法，包括：
    根据所述寻呼消息的等级确定用于发送所述寻呼消息的物理资源块集在子帧中的索引；
    向作为所述寻呼消息的接收方的用户设备通知对所述物理资源块集的指示，以及
    在所确定的物理资源块集上发送所述寻呼消息。
  12. 根据权利要求11所述的方法，其中，所述寻呼消息的等级是通过以下方式之一获得的：
    由所述网络节点预先存储；
    由上级网络节点通知；或
    用户设备根据其测量结果确定并通知所述网络节点。
  13. 根据权利要求11所述的方法，其中，所述物理资源块集在子帧中的索引是指所述物理资源块集的起始资源块在子帧中的索引。
  14. 根据权利要求11所述的方法，其中，所述物理资源块集的大小对于不同等级的寻呼消息而言是相同的。
  15. 根据权利要求11所述的方法，其中，所述物理资源块集的大小根据所述寻呼消息的等级确定。
  16. 根据权利要求11所述的方法，其中，所述寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的重复次数。
  17. 根据权利要求11所述的方法，其中，所述寻呼消息的等级还用于确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信 道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的传输时间间隔捆绑大小。
  18. 根据权利要求11所述的方法，其中，向作为所述寻呼消息的接收方的用户设备通知对所述物理资源块集的指示包括：
    如果所述网络节点是基站，通过广播系统信息和/或用户设备专用无线电资源控制信令向所述用户设备发送所述物理资源块集在子帧中的索引和/或所述物理资源块集的大小；或
    如果所述网络节点是网络侧设备，通过非接入层信令向所述用户设备发送所述物理资源块集在子帧中的索引和/或所述物理资源块集的大小。
  19. 根据权利要求11所述的方法，其中，所述网络节点为用户设备分配的系统带宽包括6个物理资源块，以及所述物理资源块集是所述系统带宽的子集。
  20. 根据权利要求11所述的方法，还包括：当所述网络节点为用户设备分配的系统带宽大于6个物理资源块时，将所述系统带宽划分为包含不多于6个物理资源块的多个子频带，以及确定所述多个子频带中要在其上向所述用户设备发送寻呼消息的一个子频带。
  21. 一种用户设备，包括：
    接收单元，用于接收对用于发送所述寻呼消息的物理资源块集的指示，以及用于在所指示的物理资源块集上接收所述寻呼消息，其中，所述物理资源块集在子帧中的索引是根据所述寻呼消息的等级确定的。
  22. 根据权利要求21所述的用户设备，其中，所述寻呼消息的等级是由基站通过广播信息和/或用户设备专用无线电资源控制信令配置或由网络侧通过NAS信令配置，并通过所述接收单元接收的；或者
    所述用户设备还包括：
    测量单元，用于测量信道状态；以及
    等级确定单元，用于根据所述测量单元的测量结果确定所述寻呼消息的等级。
  23. 根据权利要求21所述的用户设备，其中，所述物理资源块集在子帧中的索引是指所述物理资源块集的起始资源块在子帧中的索引。
  24. 根据权利要求21所述的用户设备，其中，所述物理资源块集的大 小对于不同等级的寻呼消息而言是相同的。
  25. 根据权利要求21所述的用户设备，其中，所述物理资源块集的大小由网络节点根据所述寻呼消息的等级确定，并通过广播信息和/或用户设备专用无线电资源控制信令由所述接收单元接收。
  26. 根据权利要求21所述的用户设备，其中，对所述物理资源块集的指示包括所述物理资源块集在子帧中的索引以及所述物理资源块集的大小；以及
    所述接收单元还用于通过广播系统信息和/或用户设备专用无线电资源控制信令从基站接收所述物理资源块集在子帧中的索引和/或所述物理资源块集的大小；或
    所述接收单元还用于通过非接入层信令从网络侧设备接收所述物理资源块集在子帧中的索引和/或所述物理资源块集的大小。
  27. 根据权利要求21所述的用户设备，其中，所述用户设备使用的系统带宽包括6个物理资源块，以及所述物理资源块集是所述系统带宽的子集。
  28. 根据权利要求21所述的用户设备，其中，当所述用户设备使用的系统带宽大于6个物理资源块时，所述系统带宽包括多个子频带，所述多个子频带中的每一个包含不多于6个的物理资源块，所述寻呼消息由所述接收单元310在所述多个子频带中由网络节点确定的一个子频带上接收。
  29. 一种网络节点，包括：
    块集索引确定单元，用于根据寻呼消息的等级确定用于发送所述寻呼消息的物理资源块集在子帧中的索引；以及
    发送单元，用于向作为所述寻呼消息的接收方的用户设备通知对所述块集索引确定单元确定的物理资源块集的指示，以及用于在所述确定的物理资源块集上发送所述寻呼消息。
  30. 根据权利要求29所述的网络节点，还包括接收单元，
    其中，所述寻呼消息的等级由所述网络节点预先存储，或者由上级网络节点通知，或者由用户设备根据其测量结果确定并通知所述网络节点，并由所述接收单元接收。
  31. 根据权利要求29所述的网络节点，其中，所述物理资源块集在子 帧中的索引是指所述物理资源块集的起始资源块在子帧中的索引。
  32. 根据权利要求29所述的网络节点，其中，所述物理资源块集的大小对于不同等级的寻呼消息而言是相同的。
  33. 根据权利要求29所述的网络节点，还包括：块集大小确定单元，用于根据所述寻呼消息的等级确定所述物理资源块集的大小。
  34. 根据权利要求29所述的网络节点，还包括：重复次数确定单元，用于根据所述寻呼消息的等级确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的重复次数。
  35. 根据权利要求29所述的网络节点，还包括：捆绑大小确定单元，用于根据所述寻呼消息的等级确定一个或多个物理下行共享信道，物理上行共享信道，物理下行控制信道和/或增强型物理下行控制信道，物理上行控制信道和物理随机接入信道的传输时间间隔捆绑大小。
  36. 根据权利要求29所述的网络节点，其中，对所述物理资源块集的指示包括所述物理资源块集在子帧中的索引以及所述物理资源块集的大小；以及
    如果所述网络节点是基站，所述发送单元通过广播系统信息和/或用户设备专用无线电资源控制信令向用户设备发送所述物理资源块集在子帧中的索引和/或所述物理资源块集的大小；或
    如果所述网络节点是网络侧设备，所述发送单元通过非接入层信令向用户设备发送所述物理资源块集在子帧中的索引和/或所述物理资源块集的大小。
  37. 根据权利要求29所述的网络节点，其中，所述网络节点为用户设备分配的系统带宽包括6个物理资源块，以及所述物理资源块集是所述系统带宽的子集。
  38. 根据权利要求29所述的网络节点，还包括：
    子频带划分单元，用于当所述网络节点为用户设备分配的系统带宽大于6个物理资源块时，将所述系统带宽划分为包含不多于6个物理资源块的多个子频带；以及
    子频带确定单元，用于确定所述子频带划分单元划分的所述多个子频 带中要在其上向用户设备发送寻呼消息的一个子频带。
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