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WO2018053708A1 - 寻呼装置、方法以及通信系统 - Google Patents

寻呼装置、方法以及通信系统 Download PDF

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Publication number
WO2018053708A1
WO2018053708A1 PCT/CN2016/099575 CN2016099575W WO2018053708A1 WO 2018053708 A1 WO2018053708 A1 WO 2018053708A1 CN 2016099575 W CN2016099575 W CN 2016099575W WO 2018053708 A1 WO2018053708 A1 WO 2018053708A1
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WO
WIPO (PCT)
Prior art keywords
paging
user equipment
base station
opportunity
message
Prior art date
Application number
PCT/CN2016/099575
Other languages
English (en)
French (fr)
Inventor
郤伟
周华
Original Assignee
富士通株式会社
郤伟
周华
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士通株式会社, 郤伟, 周华 filed Critical 富士通株式会社
Priority to CN201680088439.1A priority Critical patent/CN109565786A/zh
Priority to PCT/CN2016/099575 priority patent/WO2018053708A1/zh
Publication of WO2018053708A1 publication Critical patent/WO2018053708A1/zh
Priority to US16/299,718 priority patent/US20190208501A1/en

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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
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a paging apparatus, method, and communication system.
  • a base station for example, a transmission/reception point (TRP), hereinafter, a TRP is used as an example
  • TRP transmission/reception point
  • a TRP transmission/reception point
  • user equipment-specific beamforming techniques are no longer applicable for common channels and signals. In this case, the coverage problem of the common channel and the channel is an urgent problem to be solved in the high frequency transmission scheme.
  • the multi-beam based solution is more promising, and thus has received more attention and support from the industry.
  • the beam scanning (Beam Sweeping) based multi-beam scheme can provide coverage in a time division multiplexing manner, and has become the focus of discussion.
  • a subframe level there are two types of beam scanning methods: a subframe level and a symbol level, meaning that different beams respectively occupy different subframes and different symbols are transmitted.
  • paging opportunity PO, Paging Occasion
  • UE ID User Equipment Identity
  • the paging timing is completely independent of the beam scanning timing of the TRP. If a complete beam scan cannot be completed within the duration of a paging opportunity (eg, analog beam scanning) Cycle, then when the paging opportunity of the user equipment arrives, the beam of the serving TRP is likely not directed to the user equipment; in this case, the user equipment cannot successfully receive the paging message.
  • the embodiments of the present invention provide a paging apparatus, a method, and a communication system, and are expected to improve the transmission efficiency and reliability of a paging message.
  • a paging method which is applied to a base station, and the paging method includes:
  • a beam-based paging message is sent to the user equipment when the paging opportunity arrives.
  • a paging apparatus configured in a base station, where the paging apparatus includes:
  • a paging opportunity determining unit that determines a paging opportunity of the user equipment based on one or more beam identifications in the paging set;
  • a paging message sending unit that transmits a beam-based paging message to the user equipment when the paging opportunity arrives.
  • a paging method which is applied to a user equipment, where the paging method includes:
  • a beam-based paging message is received when the paging opportunity arrives.
  • a paging apparatus configured in a user equipment, where the paging apparatus includes:
  • a paging opportunity determining unit that determines a paging opportunity of the user equipment based on one or more beam identifiers in the paging set
  • a paging message receiving unit that receives a beam-based paging message when the paging opportunity arrives.
  • a communication system including:
  • a serving base station that determines a paging opportunity of the user equipment based on one or more beam identifications in the paging set; and transmits a beam-based paging message to the user equipment when the paging opportunity arrives;
  • a user equipment that determines a paging opportunity of the user equipment based on one or more beam identities in the paging set; and receives a beam-based paging message when the paging opportunity arrives.
  • the beneficial effects of the embodiment of the present invention are: determining a paging opportunity of the user equipment based on one or more beam identifiers in the paging set; thereby, when the paging opportunity of the user equipment arrives, the beam of the base station can be directed to the user equipment, which can be effective and reliable.
  • the paging message is transmitted.
  • 1 is a schematic diagram of paging failure caused by independent paging timing and beam scanning timing
  • FIG. 2 is a schematic diagram of occlusion between a TRP and a user equipment, causing paging failure
  • FIG. 3 is a schematic diagram of a paging method according to Embodiment 1 of the present invention.
  • FIG. 4 is another schematic diagram of a paging method according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of two TRP joint transmission paging messages according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of a paging method according to Embodiment 2 of the present invention.
  • FIG. 7 is another schematic diagram of a paging method according to Embodiment 2 of the present invention.
  • Figure 8 is a schematic diagram of a paging apparatus according to Embodiment 3 of the present invention.
  • Figure 9 is another schematic diagram of a paging apparatus according to Embodiment 3 of the present invention.
  • Figure 10 is another schematic diagram of a paging apparatus according to Embodiment 3 of the present invention.
  • Figure 11 is a schematic diagram of a paging apparatus according to Embodiment 4 of the present invention.
  • Figure 12 is another schematic diagram of a paging apparatus according to Embodiment 4 of the present invention.
  • Figure 13 is another schematic diagram of a paging apparatus according to Embodiment 4 of the present invention.
  • Figure 14 is a schematic diagram of a communication system according to Embodiment 5 of the present invention.
  • FIG. 15 is a schematic diagram of a user equipment according to Embodiment 5 of the present invention.
  • Figure 16 is a diagram showing a base station according to Embodiment 5 of the present invention.
  • a base station may be referred to as an access point, a broadcast transmitter, a transmission and reception point (TRP), a Node B, an evolved Node B (eNB), and a Radio Remote Head Unit (RRH/RRU). Etc., and may include some or all of their functions.
  • the term "base station” will be used herein. Each base station provides communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the base station may include a serving base station and/or a cooperative base station, unless otherwise specified.
  • a mobile station or device may be referred to as a "User Equipment” (UE).
  • UE User Equipment
  • a UE may be fixed or mobile and may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, and the like.
  • the user equipment can be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless phone, and the like.
  • PDA personal digital assistant
  • the paging frame (PF) is determined by the following equation.
  • N min(T, nB), nB ⁇ 4T, 2T, T, T/2, T/4, T/8, T/16, T/ 32, T/64, T/128, T/256 ⁇ .
  • N s max(1, nB/T).
  • the P-RN Paging Radio Network Temporary Identifier
  • PDCCH Physical Downlink Control Channel
  • PO paging occasion
  • the paging opportunity depends on the user equipment identity (UE_ID).
  • UE_ID user equipment identity
  • the timing of paging is completely independent of the beam scanning timing. If a complete beam scan (e.g., analog beam scan) period cannot be completed within the duration of a paging opportunity, then at the moment the paging opportunity of the user equipment arrives, the beam of the serving base station is likely not directed to the user equipment. In this case, the user equipment cannot successfully receive the paging message.
  • Figure 1 is a schematic diagram of paging failure caused by independent paging timing and beam scanning timing. As shown in Figure 1, when a PO in the PF arrives, the beam sent by the TRP does not point to the user equipment, resulting in the user equipment failing. Receive a paging message.
  • FIG. 2 is a schematic diagram of an occlusion between a TRP and a user equipment, causing paging failure.
  • the TRP#1 is the service TRP of the user equipment.
  • a car passes between the user equipment and TRP #1. In this case, the beam directed by TRP#1 to the user equipment is occluded, causing paging failure.
  • the paging failure is schematically explained above.
  • 5G fifth generation
  • NR New Radio
  • existing paging mechanisms do not work due to, for example, the following reasons. That is, for a user equipment, the beam of the paging opportunity arrival time service TRP is likely not directed to the user equipment; in high frequency transmission, occlusion often leads to paging failure.
  • the embodiment of the invention provides a paging method applied to a user equipment.
  • FIG. 3 is a schematic diagram of a paging method according to an embodiment of the present invention, which is described from the perspective of a user equipment. As shown in FIG. 3, the paging method includes:
  • Step 301 The user equipment determines, according to one or more beam identifiers in the paging set, a paging opportunity of the user equipment.
  • Step 302 The user equipment receives a beam-based paging message when the paging opportunity arrives.
  • the base station may be a macro base station (for example, an eNB), and a macro cell (for example, a macro cell) generated by the macro base station may serve the user equipment; or the base station may also be a micro base station, where the micro base station generates A micro cell (such as a Pico cell or a small cell) can provide services for the user equipment.
  • a macro base station for example, an eNB
  • a macro cell for example, a macro cell generated by the macro base station may serve the user equipment
  • the base station may also be a micro base station, where the micro base station generates
  • a micro cell such as a Pico cell or a small cell
  • the present invention is not limited thereto, and a specific scenario may be determined according to actual conditions.
  • RRM radio resource management
  • the first type is the global beam identification, and the beam unified number of multiple base stations (or TRPs) in one area (or super cell) is represented by a capital letter 'B' and a subscript;
  • the second type is a two-tuple consisting of a base station (or TRP) identifier and a base station (or TRP) internal beam identifier, represented by lowercase letters 'c' and 'b' and subscripts, respectively.
  • B i is the global beam identification
  • c m is the base station to which the beam belongs (or The TRP) identifier (which may be, but is not limited to, the cell identity)
  • bn is the beam identity within the associated base station (or TRP).
  • the specific representation of the beam identification is not limited thereto, and may be other forms of expression.
  • the user equipment can obtain the cell identity of the serving base station (or TRP) through cell search according to the primary synchronization signal (PSS, primary synchronization signal) and the secondary synchronization signal (SSS).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • the beam identification within the base station (or TRP) is typically mapped to a symbol (eg, an Orthogonal Frequency Division Multiplex (OFDM) number).
  • OFDM Orthogonal Frequency Division Multiplex
  • the OFDM symbol number can be used as a beam identification inside the base station (or TRP). Therefore, the user equipment can determine the beam identifier inside the base station (or TRP) according to the OFDM symbol number with the highest received signal strength.
  • the user equipment can obtain the global beam identification according to the cell identity of the base station (or TRP) and the beam identifier inside the base station (or TRP).
  • the global beam identification will be used as an example for description.
  • paging opportunity in the embodiment of the present invention is a generalized concept, and the sub-frame beam scanning and the symbol level beam scanning may have different meanings.
  • a paging opportunity in a subframe-level beam scan, may be represented as a subframe number in one frame; and in a symbol-level beam scan, a paging opportunity not only represents a subframe number in one frame but also represents the subframe. Symbol number.
  • the beam scanning timing of the base station may be associated with the paging timing of the user equipment. That is, the paging set of the user equipment can be introduced into the scheduling of paging opportunities.
  • the paging opportunity of the user equipment may be calculated according to, but not limited to, the following formula:
  • P u is a paging set of the user equipment
  • f is a paging opportunity calculation function, which may be statically predefined or notified by higher layer signaling (eg, Radio Resource Control (RRC) signaling).
  • RRC Radio Resource Control
  • T and nB can be used; even the user equipment identifier in the existing LTE system formula can be directly replaced with the beam in the paging set of the user equipment. Identification; the invention is not specifically limited thereto.
  • the paging opportunity of the user equipment may also be determined based on one or more beam identifiers in the paging set and an identifier of the user equipment.
  • the paging opportunity of the user equipment It can be calculated according to, but not limited to, the following formula:
  • the base station can adopt a dynamic paging opportunity calculation formula, for example, dynamically switching between equations (2) and (3).
  • the base station can notify the user equipment by using high layer signaling (such as RRC), and/or physical layer signaling, and/or system information (SI, System Information). Accordingly, the user equipment can dynamically switch the calculation formula of the paging opportunity according to the corresponding signaling.
  • the above only schematically illustrates how to calculate the paging opportunity of the user equipment, but the present invention is not limited thereto, and the beam scanning timing of the base station may be associated with the paging timing of the user equipment, and the specific situation may be determined according to actual conditions. Implementation.
  • the paging opportunity may be identified by a partial beam identifier (ie, one or more beam identifiers) in the paging set. Decide.
  • the paging opportunity can be determined as follows:
  • the paging opportunity of the user equipment is determined based on one or more beam identifiers in the paging set.
  • the beam of the serving base station can point to the user equipment, and the paging message can be transmitted effectively and reliably.
  • the above is a schematic illustration of how to use the paging set to determine the paging opportunity.
  • the following is a further description of how to generate a paging set.
  • the paging set may be generated by the user equipment based on the strength of the received signal.
  • the user equipment may periodically measure beam-based reference signal received power (RSRP) and/or reference signal receive quality (RSRQ). Based on the measurement results, the user equipment u can determine its paging set P u .
  • RSRP beam-based reference signal received power
  • RSRQ reference signal receive quality
  • the paging set may also be configured by the base station for the user equipment, that is, the base station directly specifies a paging set for the user equipment.
  • the base station may measure the uplink reference signal sent by the user equipment, and determine the user equipment according to the measurement result. Call set, etc.), and send the paging set to the user equipment, and the user equipment uses the paging set to calculate its own paging opportunity.
  • the following describes an example in which the paging set is generated by the user equipment based on the strength of the received signal.
  • FIG. 4 is another schematic diagram of a paging method according to an embodiment of the present invention. As shown in FIG. 4, the paging method includes:
  • Step 401 The user equipment measures the strength of the beam-based received signal.
  • the user equipment may measure the signal strength of the beam transmitted by the serving base station, and/or may also measure the signal strength of the beam sent by other base stations.
  • Step 402 The user equipment determines one or more beam identifiers in the paging set according to the measurement result.
  • a beam identifier corresponding to a predetermined number of the larger measured values in the measurement result may be determined as a beam identifier in the paging set.
  • a paging set consists of a given number of beam identities (eg, belonging to a serving TRP, or belonging to a serving TRP and other TRPs, or belonging to different TRPs) that are larger in measurement results, ie,
  • the dynamically configured and updated signaling may be high layer signaling (such as RRC), and/or physical layer signaling (such as PDCCH), and/or system information.
  • the size of the paging set may be specified by the base station, for example, and sent to the user equipment by signaling; the user equipment may determine, according to the paging set size and the measurement result, the paging set.
  • One or more beam identifications may be specified by the base station, for example, and sent to the user equipment by signaling; the user equipment may determine, according to the paging set size and the measurement result, the paging set.
  • One or more beam identifications may be specified by the base station, for example, and sent to the user equipment by signaling; the user equipment may determine, according to the paging set size and the measurement result, the paging set.
  • One or more beam identifications may be specified by the base station, for example, and sent to the user equipment by signaling; the user equipment may determine, according to the paging set size and the measurement result, the paging set.
  • One or more beam identifications may be specified by the base station, for example, and sent to the user equipment by signaling; the user equipment may determine, according to the
  • a beam identifier corresponding to one or more measured values of the measurement result that does not exceed a predetermined threshold value may be determined as a beam identifier in the paging set.
  • the paging set consists of beam identifiers whose measurement difference from the maximum measured value does not exceed a certain threshold value (for example, both belong to the service TRP, or belong to the service TRP and other TRPs, or belong to different TRPs respectively), that is,
  • the M tr is the threshold value, which may be predefined, or may be dynamically configured and updated; the signaling of the dynamic configuration update may be high layer signaling (such as RRC), and/or physical layer signaling (such as PDCCH). ), and / or, system information (SI, System Information); Is the largest measured value in the measurement result.
  • RRC high layer signaling
  • PDCCH physical layer signaling
  • SI System Information
  • the paging set can usually also contain only one beam identifier (usually belonging to the service TRP), that is,
  • 1.
  • the paging set in the embodiment of the present invention is UE-specific, that is, each user equipment may have its own paging set; however, the present invention is not limited thereto.
  • the beam identifier of the paging set may include: an identifier of a beam sent by the serving base station, and/or an identifier of a beam sent by the other base station.
  • the paging method may further include:
  • Step 403 The user equipment reports the paging set to the serving base station explicitly or implicitly.
  • the user equipment may feed back the paging set to the serving base station (or TRP); the feedback manner may be explicit or implicit.
  • the user equipment may periodically or aperiodically feed the absolute information of the paging set to the serving base station (or TRP), or may periodically or aperiodically focus the paging against the previous feedback.
  • the incremental information is fed back to the serving base station (or TRP).
  • feedback may be performed through a physical uplink control channel (PUCCH, Physical Uplink Control Channel), and/or through a physical uplink shared channel (PUSCH).
  • PUCCH Physical Uplink Control Channel
  • PUSCH physical uplink shared channel
  • the user equipment can know that each base station (or TRP) in the paging set sets an optimal beam for the user and a corresponding downlink OFDM symbol number.
  • the user equipment may obtain an uplink subframe number corresponding to the downlink symbol number (beam scanning for a subframe level) or an uplink OFDM symbol number corresponding to the downlink symbol number (for a symbol level) Beam scanning).
  • the user equipment may send a reference signal to the corresponding base station (or TRP) within the uplink subframe or the uplink OFDM symbol.
  • the reference signal carries the user equipment identifier or the group identifier of the user group to which the user equipment belongs.
  • the base station (or TRP) can learn the user equipment according to the received reference signal
  • the paging focuses on the beam identification information about itself (ie, the base station or the TRP).
  • mapping from the downlink symbol number to the corresponding uplink subframe number or the mapping of the downlink symbol number to the corresponding uplink symbol number here needs to be known by the user equipment and the base station (or TRP).
  • the serving base station (or TRP) of the user equipment can configure the user equipment through high-layer signaling (such as RRC signaling), or directly adopt static mapping.
  • the paging method may further include:
  • Step 404 The user equipment determines a paging opportunity based on one or more beam identifiers in the paging set.
  • Step 405 The user equipment receives a beam-based paging message when the paging opportunity arrives.
  • FIG. 4 is only illustrative of an embodiment of the invention, but the invention is not limited thereto.
  • the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can appropriately modify the above based on the above contents, and are not limited to the description of the above drawings.
  • the serving base station and the cooperative base station may perform joint transmission for the paging message of the user equipment.
  • the user equipment may receive a paging message sent by the serving base station and/or the cooperative base station when the paging opportunity arrives.
  • the user equipment may monitor and determine whether there is a paging message of the user equipment when the paging opportunity arrives; if there is a paging message of the user equipment, the user equipment receives the serving base station and/or A paging message sent by the cooperative base station.
  • ) base station may locate the user equipment at the time of arrival of the paging opportunity of the user equipment.
  • the call message is jointly transmitted.
  • the occlusion problem can be effectively solved by beam diversity.
  • FIG. 5 is a schematic diagram of two TRP joint transmission paging messages according to an embodiment of the present invention.
  • the paging set of the user equipment includes beam identifiers of TRP#1 and TRP#2.
  • the two TRPs can jointly transmit the paging message of the user equipment. Even if the beam of TRP #1 is occluded, the user equipment can still receive the beam from TRP #2, thereby successfully receiving the paging message.
  • the number of base stations (or TRPs) involved may be uniformly determined according to any one or more of the following factors: occlusion probability, wireless channel quality, and moving speed of the user equipment.
  • occlusion probability a probability that the user equipment is moving.
  • wireless channel quality a measure of the quality of the user equipment.
  • moving speed of the user equipment a measure of the speed of the user equipment.
  • the invention is not limited thereto, and other factors may also be considered.
  • the transmit beam uses the beam specified by the user equipment's paging set (ie, is selected by the user equipment). Therefore, it is necessary to exchange the beam related information between base stations (or TRPs).
  • the serving base station (or TRP) can directly share the paging set of the user equipment and the paging message (optional) to all non-serving base stations (or TRPs) participating in the joint transmission through the interface between the base stations (or TRPs). .
  • the serving base station may also share one or more of the following information through an interface between the base stations (or TRPs) (eg, an X2 interface) to each non-serving base station (or TRP) participating in the joint transmission:
  • the paging of the user equipment concentrates the global beam identifier of the non-serving base station (or TRP), the beam identifier inside the base station (or TRP), and the paging message.
  • the joint transmission of the paging message may be in a coherent manner or a non-coherent manner.
  • joint transmission in coherent mode can be preferred.
  • joint transmission in a non-coherent manner such as cyclic delay diversity (CDD), etc.
  • CDD cyclic delay diversity
  • the joint transmission of the paging message may be completely transparent to the user equipment, that is, the user equipment only needs to receive the paging message when the paging opportunity is reached, wherein the paging opportunity can be determined by the foregoing method.
  • the paging opportunity of the user equipment is determined based on one or more beam identifiers in the paging set; thus, when the paging opportunity of the user equipment arrives, the beam of the base station can be directed to the user equipment, and the transmission can be efficiently and reliably. Call the message. Further, the serving base station and the cooperative base station jointly transmit the paging message of the user equipment, thereby effectively utilizing beam diversity to effectively resist occlusion; thus, the efficiency and reliability of paging message transmission can be greatly improved.
  • the embodiment of the present invention provides a paging method, which is applied to a base station (a serving base station and/or a cooperative base station).
  • a base station a serving base station and/or a cooperative base station.
  • the same content in the embodiment of the present invention is not described herein.
  • FIG. 6 is a schematic diagram of a paging method according to an embodiment of the present invention. As shown in FIG. 6, the paging method includes:
  • Step 601 The base station determines, according to one or more beam identifiers in the paging set, a paging opportunity of the user equipment;
  • Step 602 The base station sends a beam-based paging message to the user equipment when the paging opportunity arrives.
  • it may also be based on one or more beam identifiers in the paging set and the user equipment.
  • the identification determines a paging opportunity of the user equipment.
  • the paging opportunity in the case that the beam scanning is at the subframe level, the paging opportunity may be represented as a subframe number in the frame, the beam identifier in the paging set is represented as a subframe number, and the beam scanning is a symbol.
  • the paging opportunity may be represented as a subframe number in a frame and a symbol number in a subframe, and a beam identifier in the paging set is represented as a symbol number.
  • the manner in which the base station determines the paging set may be as described in Embodiment 1, for example, using Equation (2) or (3).
  • the base station can also adopt a dynamic paging opportunity calculation formula, for example, dynamically switching between formulas (2) and (3).
  • the base station can notify the user equipment by using high layer signaling (such as RRC), and/or physical layer signaling, and/or system information. Accordingly, the user equipment can dynamically switch the calculation formula of the paging opportunity according to the corresponding signaling.
  • the paging set may be generated by the user equipment based on the strength of the received signal.
  • FIG. 7 is a schematic diagram of a paging method according to an embodiment of the present invention. As shown in FIG. 7, the paging method may include:
  • Step 701 The serving base station receives a paging set that is reported by the user equipment explicitly or implicitly.
  • the beam identifier of the paging set may include: an identifier of a beam sent by the serving base station, and/or an identifier of a beam sent by another base station.
  • the paging method may further include:
  • Step 702 The serving base station performs information exchange with the cooperative base station, so that the serving base station and the cooperative base station perform joint transmission for the paging message of the user equipment when the paging opportunity of the user equipment arrives.
  • the information may include one or more of the following: a user equipment identifier of the user equipment, a paging set of the user equipment, a paging message of the user equipment, and the user equipment. a beam identifier of the serving base station in the paging set, and a beam identifier of the coordinated base station in the user equipment paging set.
  • a user equipment identifier of the user equipment a paging set of the user equipment
  • a paging message of the user equipment and the user equipment.
  • the present invention is not limited thereto, and other information can be exchanged.
  • the paging method may further include:
  • Step 703 The serving base station and/or the cooperative base station determine a paging opportunity of the user equipment based on one or more beam identifiers in the paging set.
  • Step 704 The serving base station and/or the cooperative base station send a beam-based paging message to the user equipment when the paging opportunity of the user equipment arrives.
  • the serving base station and the cooperative base station may jointly transmit the paging message of the user equipment.
  • the serving base station may perform joint transmission of the paging message with the cooperative base station in a coherent manner; or, in the unknown of the serving base station and In the case of the phase information between the cooperative base stations, the serving base station may perform joint transmission of the paging message, such as cyclic delay diversity, and the like, in a non-coherent manner and the cooperative base station.
  • the base station may further determine a paging set size for the user equipment, and send signaling to the user equipment for specifying a paging set size, so that the user equipment according to the paging set size and the measurement result. Determine the paging set.
  • the paging set may also be directly designated by the base station for the user equipment. That is, the base station configures a paging set for the user equipment, and sends the paging set to the user equipment, so that the user equipment directly determines a paging opportunity according to the paging set.
  • the paging opportunity of the user equipment is determined based on one or more beam identifiers in the paging set; thus, when the paging opportunity of the user equipment arrives, the beam of the base station can be directed to the user equipment, and the transmission can be efficiently and reliably. Call the message. Further, the serving base station and the cooperative base station jointly transmit the paging message of the user equipment, thereby effectively utilizing beam diversity to effectively resist occlusion; thus, the efficiency and reliability of paging message transmission can be greatly improved.
  • the embodiment of the present invention provides a paging apparatus, which is configured in a user equipment. This embodiment corresponds to the paging method of Embodiment 1, and the same content as Embodiment 1 is not described herein.
  • FIG. 8 is a schematic diagram of a paging apparatus according to an embodiment of the present invention. As shown in FIG. 8, the paging apparatus 800 includes:
  • a paging opportunity determining unit 801 which determines a paging opportunity of the user equipment based on one or more beam identifiers in the paging set; wherein the paging set is generated by the user equipment based on an intensity of a received signal;
  • a paging message receiving unit 802 receives a beam-based paging message when the paging opportunity arrives.
  • the paging opportunity determining unit 801 is further configured to: determine a paging opportunity of the user equipment based on one or more beam identifiers in the paging set and an identifier of the user equipment.
  • the paging opportunity in the case that the beam scanning is at the subframe level, the paging opportunity may be represented as a subframe number in the frame. In the case where the beam scan is at the symbol level, the paging opportunity may be represented as a subframe number in the frame and a symbol number in the subframe.
  • the paging set may be generated by the user equipment based on the strength of the received signal.
  • the paging apparatus 900 includes a paging opportunity determining unit 801 and a paging message receiving unit 802, as described above.
  • the paging device 900 may further include:
  • a signal measuring unit 901 which measures the intensity of the beam-based received signal
  • a paging set determining unit 902 determines one or more beam identifications in the paging set based on the measurement results.
  • the paging set determining unit 902 is specifically configured to: determine, as the beam identifier of the paging set, a beam identifier corresponding to a predetermined number of the larger measured values in the measurement result; or The beam identification corresponding to the one or more measured values in the measurement result that does not exceed the predetermined threshold value by the maximum measured value is determined as the beam identifier of the paging set.
  • the paging device 900 may further include:
  • a set size receiving unit 903 which receives signaling sent by the base station for specifying a paging set size
  • the paging set determining unit 902 is further configured to determine one or more beam identifiers in the paging set according to the paging set size and the measurement result.
  • the paging device 900 may further include:
  • the paging set reporting unit 904 reports the paging set to the serving base station explicitly or implicitly.
  • the signal measurement unit 901 may be configured to: measure a signal strength of a beam sent by a serving base station of the user equipment, and/or measure a signal strength of a beam sent by another base station.
  • the beam identifier of the paging set may include: an identifier of a beam sent by the serving base station, and/or an identifier of a beam sent by the other base station.
  • the paging message receiving unit 802 is further configured to: receive, when the paging opportunity arrives, a paging message sent by the serving base station and/or the cooperative base station; where the serving base station and the cooperative base station are The paging message of the user equipment is jointly transmitted.
  • the paging set may also be directly designated by the base station for the user equipment.
  • FIG. 10 is another schematic diagram of a paging apparatus according to an embodiment of the present invention.
  • the paging apparatus 1000 includes a paging opportunity determining unit 801 and a paging message receiving unit 802, as described above.
  • the paging device 1000 may further include:
  • the paging set receiving unit 1001 receives the paging set configured by the base station and configured for the user equipment.
  • the paging opportunity of the user equipment is determined based on one or more beam identifiers in the paging set; thus, when the paging opportunity of the user equipment arrives, the beam of the base station can be directed to the user equipment, which can be effective.
  • the paging message is transmitted reliably.
  • the serving base station and the cooperative base station jointly transmit the paging message of the user equipment, thereby effectively utilizing beam diversity to effectively resist occlusion; thus, the efficiency and reliability of paging message transmission can be greatly improved.
  • the embodiment of the present invention provides a paging apparatus, which is configured in a base station (a serving base station and/or a cooperative base station). This embodiment corresponds to the paging method in the second embodiment, and the same content as that in the first embodiment is not described herein.
  • FIG. 11 is a schematic diagram of a paging apparatus according to an embodiment of the present invention. As shown in FIG. 11, the paging apparatus 1100 includes:
  • a paging opportunity determining unit 1101 which determines a paging opportunity of the user equipment based on one or more beam identifications in the paging set;
  • a paging message transmitting unit 1102 that transmits a beam-based paging message to the user equipment when the paging opportunity arrives.
  • the paging opportunity determining unit 1101 may be further configured to: determine a paging opportunity of the user equipment based on one or more beam identifiers in the paging set and an identifier of the user equipment.
  • the paging opportunity in the case that the beam scanning is at the subframe level, the paging opportunity may be represented as a subframe number in a frame; in the case that the beam scanning is at a symbol level, the paging opportunity may be represented as a frame.
  • the subframe number and the symbol number in the subframe in the case that the beam scanning is at a symbol level, the paging opportunity may be represented as a frame.
  • the paging set may be generated by the user equipment based on the strength of the received signal.
  • FIG. 12 is another schematic diagram of a paging apparatus according to an embodiment of the present invention.
  • the paging apparatus 1200 includes a paging opportunity determining unit 1101 and a paging message transmitting unit 1102, as described above.
  • the paging device 1200 may further include:
  • the paging set receiving unit 1201 receives the paging set reported by the user equipment explicitly or implicitly.
  • the beam identifier of the paging set may include: an identifier of a beam sent by the serving base station, and/or an identifier of a beam sent by another base station.
  • the paging device 1200 may further include:
  • the information interaction unit 1202 performs information exchange with the cooperative base station, so that the serving base station and the cooperative base station perform joint transmission for the paging message of the user equipment when the paging opportunity arrives.
  • the information may include one or more of the following: a user equipment identifier of the user equipment, where a paging set of the user equipment, a paging message of the user equipment, a beam identifier of the serving base station in the user equipment paging set, and a beam identifier of the cooperative base station in the user equipment paging set.
  • a user equipment identifier of the user equipment where a paging set of the user equipment, a paging message of the user equipment, a beam identifier of the serving base station in the user equipment paging set, and a beam identifier of the cooperative base station in the user equipment paging set.
  • the present invention is not limited thereto, and other information can be exchanged.
  • the paging message sending unit 1102 is further configured to: when the phase information between the serving base station and the cooperative base station is known, perform the paging by using a coherent manner and the cooperative base station. Joint transmission of the message; or, in the case where the phase information between the serving base station and the cooperative base station is unknown, the joint transmission of the paging message, such as cyclic delay diversity, is performed in a non-coherent manner and the cooperative base station and many more.
  • the paging device 1200 may further include:
  • a set size transmitting unit 1204 that transmits signaling for specifying a paging set size to the user equipment.
  • the paging set may also be directly designated by the base station for the user equipment.
  • FIG. 13 is another schematic diagram of a paging apparatus according to an embodiment of the present invention.
  • the paging apparatus 1300 includes: a paging opportunity determining unit 1101, a paging message transmitting unit 1102, and an information interaction unit 1202, as described above.
  • the paging device 1300 may further include:
  • a paging set determining unit 1301, configured to configure a paging set for the user equipment
  • the paging set sending unit 1302 transmits the paging set to the user equipment.
  • the paging opportunity of the user equipment is determined based on one or more beam identifiers in the paging set; thus, when the paging opportunity of the user equipment arrives, the beam of the base station can be directed to the user equipment, and the transmission can be efficiently and reliably. Call the message. Further, the serving base station and the cooperative base station jointly transmit the paging message of the user equipment, thereby effectively utilizing beam diversity to effectively resist occlusion; thus, the efficiency and reliability of paging message transmission can be greatly improved.
  • the embodiment of the present invention further provides a communication system, and the same contents as those of Embodiments 1 to 4 are not described herein.
  • the communication system 1400 may include a serving base station 1401 and a user equipment 1402.
  • the user equipment 1402 may be configured with the paging apparatus 800, 900 or 1000 as described in Embodiment 3; the serving base station 1401 may be configured with the paging apparatus 1100, 1200 or 1300 as described in Embodiment 4.
  • user equipment 1402 may determine a paging opportunity for user equipment 1402 based on one or more beam identifications in the paging set; and receive a beam-based paging message upon arrival of the paging opportunity;
  • the serving base station 1401 may determine a paging opportunity for the user equipment 1402 based on one or more beam identifications in the paging set; and transmit a beam-based paging message to the user equipment 1402 upon arrival of the paging opportunity.
  • the communication system 1400 can also include:
  • the cooperative base station 1403 performs information exchange with the serving base station 1401, and the cooperative base station 1403 and the serving base station 1401 may jointly transmit the paging message of the user equipment 1402 when the paging opportunity arrives.
  • the embodiment of the invention further provides a user equipment.
  • FIG. 15 is a schematic diagram of a user equipment according to an embodiment of the present invention.
  • the user device 1500 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100.
  • the central processing unit 100 can be configured to implement the paging method described in Embodiment 1.
  • central processor 100 can be configured to control to determine a paging opportunity for user equipment 1500 based on one or more beam identifications in the paging set; and receive a beam-based paging message when the paging opportunity arrives.
  • the user equipment 1500 may further include: a communication module 110, an input unit 120, a display 160, and a power source 170.
  • the functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 1500 does not have to include all the components shown in FIG. 15, and the above components are not required; in addition, the user equipment 1500 may further include components not shown in FIG. There are technologies.
  • the embodiment of the invention further provides a base station (a serving base station and/or a cooperative base station).
  • a base station a serving base station and/or a cooperative base station.
  • FIG. 16 is a schematic diagram showing the structure of a base station according to an embodiment of the present invention.
  • base station 1600 can include a central processing unit (CPU) 200 and memory 210; and memory 210 is coupled to central processing unit 200.
  • the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200.
  • central processor 200 can be configured to control to determine a paging opportunity of a user equipment based on one or more beam identifications in the paging set; and to transmit beam-based paging to the user equipment when the paging opportunity arrives Message.
  • the central processing unit 200 can also be configured to perform control for joint transmission of paging messages for user equipment with other base stations upon arrival of the paging opportunity.
  • the base station 1600 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the base station 1600 also does not have to include all of the components shown in FIG. 16; in addition, the base station 1600 may also include components not shown in FIG. 16, and reference may be made to the prior art.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the paging device or user equipment to perform the paging described in Embodiment 1 when the program is executed in a paging device or a user equipment method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a paging device or a user equipment to perform the paging method described in Embodiment 1.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the paging device or the base station to perform the paging method described in Embodiment 2 when the program is executed in a paging device or a base station.
  • An embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a paging device or a base station to perform the paging method described in Embodiment 2.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • the method/apparatus described in connection with the embodiments of the invention may be embodied directly in hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in FIG. 8 and/or one or more combinations of functional block diagrams may correspond to a computer program flow.
  • Each software module can also correspond to each hardware module. These software modules may correspond to the respective steps shown in FIG. 3, respectively.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read a letter from the storage medium Information can be written to the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

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Abstract

一种寻呼装置、方法以及通信系统。所述寻呼方法包括：基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；在所述寻呼机会到达时接收基于波束的寻呼消息。由此在用户设备的寻呼机会到达时，基站的波束能够指向该用户设备，能够有效可靠地传输寻呼消息。

Description

寻呼装置、方法以及通信系统 技术领域
本发明涉及通信技术领域，特别涉及一种寻呼装置、方法以及通信系统。
背景技术
众所周知，现有的无线频谱早已拥挤不堪。为了应对持续增长的无线业务量以及不断涌现的新业务，人们不得不去探索频率更高带宽更大的无线频谱资源，例如厘米波、毫米波等。
然而信号的频率越高，所受的衰减越大。为了克服严重的传输损耗，可以在高频通信链路的发送端和接收端部署大量的天线，也即大规模天线阵列。以此来获得较大的波束成形增益，从而对抗严重的传输衰减。
对于数据传输，基站(例如发送接收点(TRP，Transmission/Reception Point)，以下以TRP为例说明)通常可以采用用户设备专用的波束成形技术把发送功率集中到用户设备所在的方向。但是，对于公共信道和信号，用户设备专用的波束成形技术已不再适用。在这种情况下，公共信道和信道的覆盖问题是高频传输方案中一个亟待解决的问题。
为了保证公共信道和信号的覆盖，目前有基于多波束(Multi-Beam)和基于单波束(Single-Beam)两类解决方案。其中，基于多波束的方案更有前景，也因此获得了业界更多的关注和支持。尤其是基于波束扫描(Beam Sweeping)的多波束方案，能够以时分复用的方式提供覆盖，更是成为了讨论的焦点。
通常来讲，波束扫描方式可以有两种：子帧级别和符号级别，意味着不同的波束分别占用不同的子帧和不同的符号被发送。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现：目前的方案中对于某个用户设备，寻呼机会(PO，Paging Occasion) 取决于用户设备标识(UE ID，User Equipment identity)，寻呼定时与TRP的波束扫描定时是完全独立的，如果在一个寻呼机会的持续时间内不能完成一个完整的波束扫描(如模拟波束扫描)周期，那么在该用户设备的寻呼机会到来时，服务TRP的波束很可能并没有指向该用户设备；在这种情况下，用户设备无法成功接收寻呼消息。
另一方面，除了较大的传播损耗，高频传输还会受到严重的遮挡。给定一个用户设备，即使在寻呼机会到来时服务TRP的波束指向了它，如果二者之间有遮挡物体，那么很有可能该用户设备仍然不能成功接收寻呼消息。
本发明实施例提供一种寻呼装置、方法以及通信系统，期待提高寻呼消息的传输效率和可靠性。
根据本发明实施例的第一个方面，提供一种寻呼方法，应用于基站，所述寻呼方法包括：
基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及
在所述寻呼机会到达时向所述用户设备发送基于波束的寻呼消息。
根据本发明实施例的第二个方面，提供一种寻呼装置，配置于基站中，所述寻呼装置包括：
寻呼机会确定单元，其基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及
寻呼消息发送单元，其在所述寻呼机会到达时向所述用户设备发送基于波束的寻呼消息。
根据本发明实施例的第三个方面，提供一种寻呼方法，应用于用户设备，所述寻呼方法包括：
基于寻呼集中的一个或多个波束标识确定所述用户设备的寻呼机会；
在所述寻呼机会到达时接收基于波束的寻呼消息。
根据本发明实施例的第四个方面，提供一种寻呼装置，配置于用户设备中，所述寻呼装置包括：
寻呼机会确定单元，其基于寻呼集中的一个或多个波束标识确定所述用户设备的寻呼机会；
寻呼消息接收单元，其在所述寻呼机会到达时接收基于波束的寻呼消息。
根据本发明实施例的第五个方面，提供一种通信系统，包括：
服务基站，其基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及在所述寻呼机会到达时向所述用户设备发送基于波束的寻呼消息；
用户设备，其基于所述寻呼集中的一个或多个波束标识确定所述用户设备的寻呼机会；以及在所述寻呼机会到达时接收基于波束的寻呼消息。
本发明实施例的有益效果在于：基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；由此在用户设备的寻呼机会到达时，基站的波束能够指向该用户设备，能够有效可靠地传输寻呼消息。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是独立的寻呼定时与波束扫描定时导致寻呼失败的一示意图；
图2是TRP与用户设备之间存在遮挡导致寻呼失败的一示意图；
图3是本发明实施例1的寻呼方法的一示意图；
图4是本发明实施例1的寻呼方法的另一示意图；
图5是本发明实施例1的两个TRP联合传输寻呼消息的一示意图；
图6是本发明实施例2的寻呼方法的一示意图；
图7是本发明实施例2的寻呼方法的另一示意图；
图8是本发明实施例3的寻呼装置的一示意图；
图9是本发明实施例3的寻呼装置的另一示意图；
图10是本发明实施例3的寻呼装置的另一示意图；
图11是本发明实施例4的寻呼装置的一示意图；
图12是本发明实施例4的寻呼装置的另一示意图；
图13是本发明实施例4的寻呼装置的另一示意图；
图14是本发明实施例5的通信系统的一示意图；
图15是本发明实施例5的用户设备的一示意图；
图16是本发明实施例5的基站的一示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请中，基站可以被称为接入点、广播发射机、发送接收点(TRP)、节点B、演进节点B(eNB)、射频拉远单元(RRH/RRU，Remote Radio Head/Unit)等，并且可以包括它们的一些或所有功能。在文中将使用术语“基站”。每个基站对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。以下在没有特别说明的情况下，基站可以包括服务基站和/或协作基站。
在本申请中，移动站或设备可以被称为“用户设备”(UE，User Equipment)。UE可以是固定的或移动的，并且也可以称为移动台、终端、接入终端、用户单元、站等。用户设备可以是蜂窝电话、个人数字助理(PDA)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话等。
在长期演进(LTE，Long Term Evolution)/LTE-Advanced/LTE-Advanced Pro系统中，寻呼帧(PF，paging frame)由下式决定
Figure PCTCN2016099575-appb-000001
其中T为非连续接收(DRX，Discontinuous Reception)周期，N＝min(T,nB)，nB∈{4T,2T,T,T/2,T/4,T/8,T/16,T/32,T/64,T/128,T/256}。
编号
Figure PCTCN2016099575-appb-000002
其中Ns＝max(1,nB/T)。
不失一般性，以寻呼无线网络临时标识(P-RNTI，Paging Radio Network Temporary Identifier)在物理下行控制信道(PDCCH，Physical Downlink Control Channel)中传输为例，寻呼机会(PO，paging occasion)可以通过查询下表1得到。
表1
Figure PCTCN2016099575-appb-000003
显然，对于一个给定用户设备，寻呼机会取决于用户设备标识(UE_ID)。寻呼的定时与波束扫描定时是完全独立的。如果在一个寻呼机会的持续时间内不能完成一个完整的波束扫描(如模拟波束扫描)周期，那么在该用户设备寻呼机会到来时刻，服务基站的波束很可能并没有指向该用户设备。在这种情况下，用户设备无法成功接收寻呼消息。
图1是独立的寻呼定时与波束扫描定时导致寻呼失败的一示意图，如图1所示，在PF中的PO到达时，TRP发送的波束并没有指向用户设备，从而导致用户设备无法成功接收寻呼消息。
另一方面，除了较大的传播损耗，高频传输还会受到严重的遮挡。给定一个用户设备，即使在寻呼机会到来时刻，服务TRP的波束指向了该用户设备，如果二者之间有遮挡，那么很有可能该用户设备仍然不能成功接收寻呼消息。
图2是TRP与用户设备之间存在遮挡导致寻呼失败的一示意图，如图2所示，例如在一个超小区(hyper cell)中，共有三个TRP。其中，TRP#1为该用户设备的服务TRP。在该用户设备的寻呼机会到来时刻，一辆车从该用户设备与TRP#1之间驶过。在这种情况下，TRP#1指向该用户设备的波束被遮挡，导致了寻呼失败。
以上示意性地对寻呼失败进行了说明。总之，在面向第五代(5G)的新无线(NR， New Radio)接入技术中，由于例如下列原因，现有的寻呼机制无法工作。即，对于一个用户设备，寻呼机会到达时刻服务TRP的波束很可能并没有指向该用户设备；在高频传输中，遮挡会经常导致寻呼失败。
如何有效地且可靠地进行寻呼对于5G无线通信系统是至关重要的，以下对于本发明实施例进行详细说明。
实施例1
本发明实施例提供一种寻呼方法，应用于用户设备。
图3是本发明实施例的寻呼方法的一示意图，从用户设备的角度进行说明。如图3所示，所述寻呼方法包括：
步骤301，用户设备基于寻呼集中的一个或多个波束标识确定所述用户设备的寻呼机会；
步骤302，用户设备在所述寻呼机会到达时接收基于波束的寻呼消息。
在本实施例中，基站可以为宏基站(例如eNB)，该宏基站产生的宏小区(例如Macro cell)可以为该用户设备提供服务；或者该基站也可以为微基站，该微基站产生的微小区(例如Pico cell或small cell)可以为该用户设备提供服务。但本发明不限于此，可以根据实际情况确定具体的场景。
在NR系统中，为了对抗严重的传播损耗，波束成形技术被广泛使用。在这种情况下，对于用户设备的接入，无线资源管理(RRM，radio resource management)测量等通常是针对某个波束的，而不再是针对某个基站(或TRP)。
为了叙述方便，这里给出两种不同的波束指代方法：
第一种是全局波束标识，一个区域(或者超小区)中的多个基站(或TRP)的波束统一编号，由大写字母‘B’及下标表示；
第二种是由基站(或TRP)标识和基站(或TRP)内部波束标识组成的二元组，分别由小写字母‘c’和‘b’及下标表示。
值得注意的是，两种波束标识是完全等价并可以相互转换的，即Bi<＝>(cm,bn)；其中Bi是全局波束标识，cm是波束所属的基站(或TRP)标识(该标识可以是但不限于小区标识)，bn是在所属基站(或TRP)内部的波束标识。此外，波束标识的具体表示方式不限于此，还可以是其他的表现形式。
不失一般性，用户设备可以根据主同步信号(PSS，primary synchronization signal)和辅同步信号(SSS，secondary synchronization signal)通过小区搜索获得服务基站(或TRP)的小区标识。
在波束扫描的情况下，基站(或TRP)内部的波束标识通常映射为符号(例如正交频分复用(OFDM，Orthogonal Frequency Division Multiplex)符号)编号。在这种意义上，OFDM符号编号可以作为基站(或TRP)内部的波束标识。因此，用户设备可以根据接收信号强度最大的OFDM符号编号来确定基站(或TRP)内部的波束标识。
对于任意可以检测到的波束，根据所属基站(或TRP)的小区标识和基站(或TRP)内部的波束标识，用户设备可以得到全局波束标识。为了便于表述，后文将采用全局波束标识为例进行说明。
值得强调的是，本发明实施例中的术语“寻呼机会”是一个广义的概念，在子帧级波束扫描和符号级波束扫描可以有不同的含义。例如，在子帧级波束扫描中，寻呼机会可以表示为一个帧中的子帧编号；而在符号级波束扫描中，寻呼机会不仅表示一个帧中的子帧编号，还表示所述子帧中的符号编号。
在本实施例中，为了让基站能够在用户设备的寻呼机会到达时将波束指向用户设备，可以将基站的波束扫描定时与用户设备的寻呼定时联系起来。即，可以将用户设备的寻呼集引入到寻呼机会的调度中。
例如，给定一个用户设备，假设用户设备标识为u，那么该用户设备的寻呼机会可以按照但不限于如下公式来计算：
POu＝f(Pu)                   (2)
其中，Pu为该用户设备的寻呼集；f为寻呼机会计算函数，可以静态预先定义或者由高层信令(例如无线资源控制(RRC，Radio Resource Control)信令)通知。关于f的具体实现方式，例如可以参考公式(1)和表1，可以使用T、nB等参数；甚至可以直接将现有LTE系统公式中的用户设备标识直接替换为用户设备寻呼集中的波束标识；本发明并不对此进行具体的限定。
在本实施例中，还可以基于寻呼集中的一个或多个波束标识以及所述用户设备的标识来确定所述用户设备的寻呼机会。
例如，给定一个用户设备，假设用户设备标识为u，那么该用户设备的寻呼机会 可以按照但不限于如下公式来计算：
POu＝f(u,Pu)                  (3)
根据实际需要，基站可以采用动态的寻呼机会计算公式，例如在公式(2)和(3)之间动态切换。并且基站可以使用高层信令(如RRC)，和/或，物理层信令，和/或，系统信息(SI，System Information)等通知用户设备。相应地，用户设备可以根据相应的信令动态地切换寻呼机会的计算公式。
值得注意的是，以上仅示意性说明了如何计算用户设备的寻呼机会，但本发明不限于此，将基站的波束扫描定时与用户设备的寻呼定时联系起来即可，可以根据实际情况确定具体的实施方式。
在本实施例中，当用户设备的寻呼集中含有多个波束标识时，也即|Pu|>1，寻呼机会可以由寻呼集中的部分波束标识(即一个或多个波束标识)所决定。
例如，以含有两个波束标识的寻呼集为例，Pu＝{Bu1,Bu2}，寻呼机会可以按照如下方法决定：
方法1：根据Bu1，Bu2和用户设备标识u确定寻呼机会，也即POu＝f1(u,Bu1,Bu2)；其中用户设备标识u是可选的，即也可以是POu＝f1(Bu1,Bu2)。
方法2：根据Bu1和用户设备标识u确定寻呼机会，也即POu＝f2(u,Bu1)；其中用户设备标识u是可选的，即也可以是POu＝f2(Bu1)。
方法3：根据Bu2和用户设备标识u确定寻呼机会，也即POu＝f 3(u,Bu2)；其中用户设备标识u是可选的，即也可以是POu＝f3(Bu2)。
由此，基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会，在用户设备的寻呼机会到达时，服务基站的波束能够指向该用户设备，能够有效可靠地传输寻呼消息。
以上对如何利用寻呼集确定寻呼机会进行了示意性说明，以下对于如何生成寻呼集进行进一步说明。
在本实施例中，寻呼集可以由用户设备基于接收信号的强度而生成。例如用户设备可以周期性地测量基于波束的参考信号接收功率(RSRP，reference signal receive power)和/或参考信号接收质量(RSRQ，reference signal receive quality)。基于测量 结果，用户设备u可以确定其寻呼集(paging set)Pu。
此外，寻呼集也可以由基站为所述用户设备配置，即基站直接为用户设备指定寻呼集(例如基站可以对用户设备发送的上行参考信号进行测量，根据测量结果确定该用户设备的寻呼集，等等)，并将该寻呼集发送给用户设备，用户设备利用该寻呼集计算自己的寻呼机会即可。
以下将以寻呼集由用户设备基于接收信号的强度生成为例进行说明。
图4是本发明实施例的寻呼方法的另一示意图，如图4所示，所述寻呼方法包括：
步骤401，用户设备对基于波束的接收信号的强度进行测量；
在本实施例中，用户设备可以对服务基站发送的波束的信号强度进行测量，和/或，也可以对其他基站发送的波束的信号强度进行测量。
步骤402，用户设备根据测量结果确定寻呼集中的一个或多个波束标识。
在一个实施方式中，可以将所述测量结果中预定数目个较大测量值所对应的波束标识确定为所述寻呼集中的波束标识。
例如，寻呼集由测量结果较大的给定数目个波束标识(例如均属于服务TRP，或者属于服务TRP以及其他TRP，或者分别属于不同TRP)组成，即
P＝{B1,……,B|P|}，MB1≥……≥MB|P|≥……≥MBN      (4)
其中，MBi为基于波束Bi的测量结果(例如RSRP和/或RSRQ)，i＝1,2,……,N；N为用户设备所能检测到的波束总数；|P|∈[1,N]为用户设备寻呼集的大小，该寻呼集的大小可以预先定义，或者也可以动态配置并更新。动态配置并更新的信令可以是高层信令(如RRC)，和/或，物理层信令(如PDCCH)，和/或，系统信息。
在本实施方式中，寻呼集的大小例如可以由基站指定，并通过信令发送给该用户设备；该用户设备可以根据所述寻呼集大小以及所述测量结果确定所述寻呼集中的一个或多个波束标识。
在另一个实施方式中，可以将所述测量结果中与最大测量值的差不超过预定门限值的一个或多个测量值所对应的波束标识确定为所述寻呼集中的波束标识。
例如，寻呼集由测量结果中与最大测量值之差不超过某个门限值的波束标识(例如均属于服务TRP，或者属于服务TRP以及其他TRP，或者分别属于不同TRP)组成，即
Figure PCTCN2016099575-appb-000004
其中，Mtr为所述门限值，可以预先定义，或者也可以动态配置并更新；动态配置更新的信令可以是高层信令(如RRC)，和/或，物理层信令(如PDCCH)，和/或，系统信息(SI，System Information)；
Figure PCTCN2016099575-appb-000005
为测量结果中的最大测量值。
值得注意的是，当用户设备与服务基站(或者TRP)距离较近时，寻呼集通常也可以只包含一个波束标识(通常属于服务TRP)，也即|P|＝1。此外，本发明实施例中的寻呼集是用户设备专用的(UE-specific)，即每个用户设备可以具有自己的寻呼集；但本发明不限于此。
在本实施例中，所述寻呼集中的波束标识可以包括：所述服务基站发送的波束的标识，和/或，所述其他基站发送的波束的标识。
如图4所示，所述寻呼方法还可以包括：
步骤403，用户设备显式地或者隐式地向服务基站上报所述寻呼集。
在本实施例中，得到寻呼集之后，用户设备可以将该寻呼集反馈给服务基站(或者TRP)；反馈方式可以是显式的或者隐式的。
对于显式反馈，用户设备可以周期性或非周期性地将寻呼集的绝对信息反馈给服务基站(或者TRP)，或者也可以周期性或非周期性地将寻呼集中相对于上次反馈的增量信息反馈给服务基站(或者TRP)。此外，可以通过物理上行控制信道(PUCCH，Physical Uplink Control Channel)进行反馈，和/或，通过物理上行共享信道(PUSCH，Physical Uplink Shared Channel)。本发明不限于此，可以根据实际情况确定具体的实施方式。
对于隐式反馈，例如通过下行波束扫描，用户设备可以知道寻呼集中每一个基站(或者TRP)对该用户设最优的波束以及相应的下行OFDM符号编号。根据该下行符号编号，用户设备可以得到一个与该下行符号编号相对应的上行子帧编号(对于子帧级别的波束扫描)或一个与该下行符号编号相对应的上行OFDM符号编号(对于符号级别的波束扫描)。用户设备可以在该上行子帧或该上行OFDM符号内，向相应的基站(或者TRP)发送参考信号。该参考信号中携带用户设备标识或者用户设备所属用户组的组标识。根据所接收到的参考信号，基站(或者TRP)能够获知用户设备 的寻呼集中关于自己(即该基站或者该TRP)的波束标识信息。
值得注意的是，这里从下行符号编号到相对应的上行子帧编号的映射、或者下行符号编号到相对应的上行符号编号的映射需要由用户设备和基站(或者TRP)所共知。为此，用户设备的服务基站(或者TRP)可以通过高层信令(如RRC信令)对用户设备进行配置，或者直接采用静态映射方式。
如图4所示，所述寻呼方法还可以包括：
步骤404，用户设备基于寻呼集中的一个或多个波束标识确定寻呼机会；
步骤405，用户设备在所述寻呼机会到达时接收基于波束的寻呼消息。
值得注意的是，附图4仅示意性地对本发明实施例进行了说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图的记载。
在本实施例中，服务基站和协作基站可以为所述用户设备的寻呼消息进行联合传输。用户设备在所述寻呼机会到达时，可以接收服务基站和/或协作基站发送的寻呼消息。
具体地，用户设备可以在所述寻呼机会到达时监听并判断是否有所述用户设备的寻呼消息；在有所述用户设备的寻呼消息的情况下，该用户设备接收服务基站和/或协作基站发送的寻呼消息。
例如，给定一个用户设备，基于该用户设备对于寻呼集的报告，最少一个(最多|P|个)基站(或者TRP)可以在该用户设备的寻呼机会到达时刻，对该用户设备的寻呼消息进行联合传输。当所涉及的基站(或者TRP)多于一个，那么可以利用波束分集有效地解决遮挡问题。
图5是本发明实施例的两个TRP联合传输寻呼消息的一示意图。如图5所示，该用户设备的寻呼集中包括TRP#1和TRP#2的波束标识。这两个TRP可以对该用户设备的寻呼消息进行联合传输。即使TRP#1的波束被遮挡，那么用户设备仍然能够接收来自TRP#2的波束，从而成功接收寻呼消息。
在本实施例中，所涉及的基站(或者TRP)数目可以根据以下任何一个或者多个因素统一决定：遮挡概率，无线信道质量，用户设备的移动速度。但本发明不限于此，还可以考虑其他因素。
在本实施例中，对于每一个参与联合传输的基站(或者TRP)，发送波束使用用户设备的寻呼集中指定的波束(即是由用户设备选择的)。所以，需要在基站(或者TRP)之间交换该波束相关信息。
为此，服务基站(或者TRP)可以通过基站(或者TRP)间的接口直接将用户设备的寻呼集以及寻呼消息(可选的)共享给所有参与联合传输的非服务基站(或者TRP)。
或者，服务基站(或者TRP)也可以把下列信息中的一种或者多种通过基站(或者TRP)间的接口(如X2接口)共享给每一个参与联合传输的非服务基站(或者TRP)：用户设备的寻呼集中该非服务基站(或者TRP)的全局波束标识，该基站(或者TRP)内部的波束标识，寻呼消息。
在本实施例中，寻呼消息的联合传输可以采用相干方式或者非相干方式。例如，如果基站(或者TRP)间的相位信息已知，则可以优先采用相干方式的联合传输。否则，可以采用非相干方式的联合传输，如循环延时分集(CDD，cyclic delay diversity)等等。另外，寻呼消息的联合传输对用户设备可以是完全透明的，也即用户设备只需要在寻呼机会达到时接收寻呼消息，其中寻呼机会可以由前述的方法确定。
由上述实施例可知，基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；由此在用户设备的寻呼机会到达时，基站的波束能够指向该用户设备，能够有效可靠地传输寻呼消息。进一步地，服务基站和协作基站为用户设备的寻呼消息进行联合传输，由此能利用波束分集有效地对抗遮挡；从而寻呼消息传输的效率和可靠性能够大大提高。
实施例2
本发明实施例提供一种寻呼方法，应用于基站(服务基站和/或协作基站)；本发明实施例与实施例1中相同的内容不再赘述。
图6是本发明实施例的寻呼方法的一示意图，如图6所示，所述寻呼方法包括：
步骤601，基站基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及
步骤602，基站在所述寻呼机会到达时向所述用户设备发送基于波束的寻呼消息。
在本实施例中，也可以基于寻呼集中的一个或多个波束标识以及所述用户设备的 标识确定所述用户设备的寻呼机会。
在本实施例中，在波束扫描为子帧级别的情况下，所述寻呼机会可以表示为帧中的子帧编号，所述寻呼集中的波束标识表示为子帧编号；在波束扫描为符号级别的情况下，所述寻呼机会可以表示为帧中的子帧编号以及子帧中的符号编号，所述寻呼集中的波束标识表示为符号编号。
在本实施例中，基站确定寻呼集的方式可以如实施例1所述，例如采用公式(2)或(3)。此外根据实际需要，基站还可以采用动态的寻呼机会计算公式，例如在公式(2)和(3)之间动态切换。并且基站可以使用高层信令(如RRC)，和/或，物理层信令，和/或，系统信息等通知用户设备。相应地，用户设备可以根据相应的信令动态地切换寻呼机会的计算公式。
在本实施例中，所述寻呼集可以由所述用户设备基于接收信号的强度而生成。
图7是本发明实施例的寻呼方法的一示意图，如图7所示，所述寻呼方法可以包括：
步骤701，服务基站接收用户设备显式地或者隐式地上报的寻呼集。
在本实施例中，所述寻呼集中的波束标识可以包括：所述服务基站发送的波束的标识，和/或，其他基站发送的波束的标识。
如图7所示，所述寻呼方法还可以包括：
步骤702，服务基站与协作基站进行信息交互，使得所述服务基站和所述协作基站在所述用户设备的寻呼机会到达时为所述用户设备的寻呼消息进行联合传输。
在本实施例中，所述信息可以包括如下的一种或多种：所述用户设备的用户设备标识，所述用户设备的寻呼集，所述用户设备的寻呼消息，所述用户设备寻呼集中的所述服务基站的波束标识，所述用户设备寻呼集中的所述协作基站的波束标识。但本发明不限于此，还可以交互其他的信息。
如图7所示，所述寻呼方法还可以包括：
步骤703，服务基站和/或协作基站基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；
步骤704，服务基站和/或协作基站在所述用户设备的寻呼机会到达时向所述用户设备发送基于波束的寻呼消息。
在本实施例中，服务基站和协作基站可以为用户设备的寻呼消息进行联合传输。
在已知所述服务基站和所述协作基站之间相位信息的情况下，服务基站可以采用相干方式和所述协作基站进行所述寻呼消息的联合传输；或者，在未知所述服务基站和所述协作基站之间相位信息的情况下，服务基站可以采用非相干方式和所述协作基站进行所述寻呼消息的联合传输，如循环延时分集等等。
在本实施例中，基站还可以为所述用户设备确定寻呼集大小，并向所述用户设备发送用于指定寻呼集大小的信令，使得用户设备根据该寻呼集大小以及测量结果确定寻呼集。
在本实施例中，寻呼集还可以由基站为用户设备直接指定。即基站为所述用户设备配置寻呼集，并向所述用户设备发送所述寻呼集，使得所述用户设备直接根据该寻呼集确定寻呼机会。
由上述实施例可知，基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；由此在用户设备的寻呼机会到达时，基站的波束能够指向该用户设备，能够有效可靠地传输寻呼消息。进一步地，服务基站和协作基站为用户设备的寻呼消息进行联合传输，由此能利用波束分集有效地对抗遮挡；从而寻呼消息传输的效率和可靠性能够大大提高。
实施例3
本发明实施例提供一种寻呼装置，配置于用户设备中；本实施例对应于实施例1的寻呼方法，与实施例1相同的内容不再赘述。
图8是本发明实施例的寻呼装置的一示意图，如图8所示，寻呼装置800包括：
寻呼机会确定单元801，其基于寻呼集中的一个或多个波束标识确定所述用户设备的寻呼机会；其中所述寻呼集由所述用户设备基于接收信号的强度而生成；
寻呼消息接收单元802，其在所述寻呼机会到达时接收基于波束的寻呼消息。
在本实施例中，寻呼机会确定单元801还可以用于：基于寻呼集中的一个或多个波束标识以及所述用户设备的标识确定所述用户设备的寻呼机会。
在本实施例中，在波束扫描为子帧级别的情况下，所述寻呼机会可以表示为帧中的子帧编号。在波束扫描为符号级别的情况下，所述寻呼机会可以表示为帧中的子帧编号以及子帧中的符号编号。
在本实施例中，寻呼集可以由所述用户设备基于接收信号的强度而生成。
图9是本发明实施例的寻呼装置的另一示意图，如图9所示，寻呼装置900包括：寻呼机会确定单元801和寻呼消息接收单元802，如上所述。
如图9所示，寻呼装置900还可以包括：
信号测量单元901，其对基于波束的接收信号的强度进行测量；
寻呼集确定单元902，其根据测量结果确定所述寻呼集中的一个或多个波束标识。
在本实施例中，寻呼集确定单元902具体可以用于：将所述测量结果中预定数目个较大测量值所对应的波束标识确定为所述寻呼集中的波束标识；或者，将所述测量结果中与最大测量值的差不超过预定门限值的一个或多个测量值所对应的波束标识确定为所述寻呼集中的波束标识。
如图9所示，寻呼装置900还可以包括：
集大小接收单元903，其接收基站发送的用于指定寻呼集大小的信令；
寻呼集确定单元902还可以用于根据所述寻呼集大小以及所述测量结果确定所述寻呼集中的一个或多个波束标识。
如图9所示，寻呼装置900还可以包括：
寻呼集上报单元904，其显式地或者隐式地向服务基站上报所述寻呼集。
在本实施例中，信号测量单元901可以用于：对所述用户设备的服务基站发送的波束的信号强度进行测量，和/或，对其他基站发送的波束的信号强度进行测量。所述寻呼集中的波束标识可以包括：所述服务基站发送的波束的标识，和/或，所述其他基站发送的波束的标识。
在本实施例中，寻呼消息接收单元802还可以用于：在所述寻呼机会到达时接收服务基站和/或协作基站发送的寻呼消息；其中所述服务基站和所述协作基站为所述用户设备的寻呼消息进行联合传输。
在本实施例中，寻呼集还可以由基站为用户设备直接指定。
图10是本发明实施例的寻呼装置的另一示意图，如图10所示，寻呼装置1000包括：寻呼机会确定单元801和寻呼消息接收单元802，如上所述。
如图10所示，寻呼装置1000还可以包括：
寻呼集接收单元1001，其接收基站发送的为所述用户设备配置的寻呼集。
由上述实施例可知，基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；由此在用户设备的寻呼机会到达时，基站的波束能够指向该用户设备，能够有效 可靠地传输寻呼消息。进一步地，服务基站和协作基站为用户设备的寻呼消息进行联合传输，由此能利用波束分集有效地对抗遮挡；从而寻呼消息传输的效率和可靠性能够大大提高。
实施例4
本发明实施例提供一种寻呼装置，配置于基站(服务基站和/或协作基站)中；本实施例对应于实施例2的寻呼方法，与实施例1相同的内容不再赘述。
图11是本发明实施例的寻呼装置的一示意图，如图11所示，寻呼装置1100包括：
寻呼机会确定单元1101，其基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及
寻呼消息发送单元1102，其在所述寻呼机会到达时向所述用户设备发送基于波束的寻呼消息。
在本实施例中，寻呼机会确定单元1101还可以用于：基于寻呼集中的一个或多个波束标识以及所述用户设备的标识确定所述用户设备的寻呼机会。
在本实施例中，在波束扫描为子帧级别的情况下，所述寻呼机会可以表示为帧中的子帧编号；在波束扫描为符号级别的情况下，所述寻呼机会可以表示为帧中的子帧编号以及子帧中的符号编号。
在本实施例中，寻呼集可以由所述用户设备基于接收信号的强度而生成。
图12是本发明实施例的寻呼装置的另一示意图，如图12所示，寻呼装置1200包括：寻呼机会确定单元1101和寻呼消息发送单元1102，如上所述。
如图12所示，寻呼装置1200还可以包括：
寻呼集接收单元1201，其接收所述用户设备显式地或者隐式地上报的寻呼集。
其中，所述寻呼集中的波束标识可以包括：所述服务基站发送的波束的标识，和/或，其他基站发送的波束的标识。
如图12所示，寻呼装置1200还可以包括：
信息交互单元1202，其与协作基站进行信息交互，使得所述服务基站和所述协作基站在所述寻呼机会到达时为所述用户设备的寻呼消息进行联合传输。
其中，所述信息可以包括如下的一种或多种：所述用户设备的用户设备标识，所 述用户设备的寻呼集，所述用户设备的寻呼消息，所述用户设备寻呼集中的所述服务基站的波束标识，所述用户设备寻呼集中的所述协作基站的波束标识。但本发明不限于此，还可以交互其他的信息。
在本实施例中，寻呼消息发送单元1102还可以用于：在已知所述服务基站和所述协作基站之间相位信息的情况下，采用相干方式和所述协作基站进行所述寻呼消息的联合传输；或者，在未知所述服务基站和所述协作基站之间相位信息的情况下，采用非相干方式和所述协作基站进行所述寻呼消息的联合传输，如循环延时分集等等。
如图12所示，寻呼装置1200还可以包括：
集大小确定单元1203，其为所述用户设备确定寻呼集大小；
集大小发送单元1204，其向所述用户设备发送用于指定寻呼集大小的信令。
在本实施例中，寻呼集还可以由基站为用户设备直接指定。
图13是本发明实施例的寻呼装置的另一示意图，如图13所示，寻呼装置1300包括：寻呼机会确定单元1101、寻呼消息发送单元1102以及信息交互单元1202，如上所述。
如图13所示，寻呼装置1300还可以包括：
寻呼集确定单元1301，其为所述用户设备配置寻呼集；
寻呼集发送单元1302，其向所述用户设备发送所述寻呼集。
由上述实施例可知，基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；由此在用户设备的寻呼机会到达时，基站的波束能够指向该用户设备，能够有效可靠地传输寻呼消息。进一步地，服务基站和协作基站为用户设备的寻呼消息进行联合传输，由此能利用波束分集有效地对抗遮挡；从而寻呼消息传输的效率和可靠性能够大大提高。
实施例5
本发明实施例还提供一种通信系统，与实施例1至4相同的内容不再赘述。
图14是本发明实施例的通信系统的示意图，如图14所示，通信系统1400可以包括服务基站1401和用户设备1402。其中，用户设备1402可以配置有如实施例3所述的寻呼装置800、900或1000；服务基站1401可以配置有如实施例4所述的寻呼装置1100、1200或1300。
即，用户设备1402可以基于寻呼集中的一个或多个波束标识确定用户设备1402的寻呼机会；以及在所述寻呼机会到达时接收基于波束的寻呼消息；
服务基站1401可以基于所述寻呼集中的一个或多个波束标识确定用户设备1402的寻呼机会；以及在所述寻呼机会到达时向用户设备1402发送基于波束的寻呼消息。
如图14所示，通信系统1400还可以包括：
协作基站1403，其与服务基站1401进行信息交互，并且协作基站1403和服务基站1401可以在所述寻呼机会到达时为用户设备1402的寻呼消息进行联合传输。
本发明实施例还提供一种用户设备。
图15是本发明实施例的用户设备的示意图。如图15所示，该用户设备1500可以包括中央处理器100和存储器140；存储器140耦合到中央处理器100。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。其中，中央处理器100可以被配置为实现实施例1所述的寻呼方法。
例如，中央处理器100可以被配置为进行如下的控制：基于寻呼集中的一个或多个波束标识确定用户设备1500的寻呼机会；以及在所述寻呼机会到达时接收基于波束的寻呼消息。
如图15所示，该用户设备1500还可以包括：通信模块110、输入单元120、显示器160、电源170。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备1500也并不是必须要包括图15中所示的所有部件，上述部件并不是必需的；此外，用户设备1500还可以包括图15中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种基站(服务基站和/或协作基站)。
图16是本发明实施例的基站的构成示意图。如图16所示，基站1600可以包括：中央处理器(CPU)200和存储器210；存储器210耦合到中央处理器200。其中该存储器210可存储各种数据；此外还存储信息处理的程序，并且在中央处理器200的控制下执行该程序。
例如，中央处理器200可以被配置为进行如下的控制：基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及在所述寻呼机会到达时向用户设备发送基于波束的寻呼消息。
此外，中央处理器200还可以被配置为进行如下的控制：在所述寻呼机会到达时与其他基站一起为用户设备的寻呼消息进行联合传输。
此外，如图16所示，基站1600还可以包括：收发机220和天线230等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，基站1600也并不是必须要包括图16中所示的所有部件；此外，基站1600还可以包括图16中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种计算机可读程序，其中当在寻呼装置或者用户设备中执行所述程序时，所述程序使得所述寻呼装置或者用户设备执行实施例1所述的寻呼方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得寻呼装置或者用户设备执行实施例1所述的寻呼方法。
本发明实施例还提供一种计算机可读程序，其中当在寻呼装置或者基站中执行所述程序时，所述程序使得所述寻呼装置或者基站执行实施例2所述的寻呼方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得寻呼装置或者基站执行实施例2所述的寻呼方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图8中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合(例如，寻呼机会确定单元、寻呼消息接收单元等)，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图3所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信 息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (20)

  1. 一种寻呼装置，配置于基站中，所述寻呼装置包括：
    寻呼机会确定单元，其基于寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及
    寻呼消息发送单元，其在所述寻呼机会到达时向所述用户设备发送基于波束的寻呼消息。
  2. 根据权利要求1所述的寻呼装置，其中，所述寻呼机会确定单元还用于：基于寻呼集中的一个或多个波束标识以及所述用户设备的标识确定所述用户设备的寻呼机会。
  3. 根据权利要求1所述的寻呼装置，其中，所述寻呼装置还包括：
    寻呼集接收单元，其接收所述用户设备显式地或者隐式地上报的所述寻呼集。
  4. 根据权利要求1所述的寻呼装置，其中，所述寻呼装置还包括：
    集大小确定单元，其为所述用户设备确定寻呼集大小；
    集大小发送单元，其向所述用户设备发送用于指定寻呼集大小的信令。
  5. 根据权利要求1所述的寻呼装置，其中，所述寻呼装置还包括：
    寻呼集确定单元，其为所述用户设备配置寻呼集；
    寻呼集发送单元，其向所述用户设备发送所述寻呼集。
  6. 根据权利要求1所述的寻呼装置，其中，在波束扫描为子帧级别的情况下，所述寻呼机会表示为帧中的子帧编号；在波束扫描为符号级别的情况下，所述寻呼机会表示为帧中的子帧编号以及子帧中的符号编号。
  7. 根据权利要求1所述的寻呼装置，其中，所述寻呼集中的波束标识包括：服务基站发送的波束的标识，和/或，其他基站发送的波束的标识。
  8. 根据权利要求1所述的寻呼装置，其中，所述寻呼装置还包括：
    信息交互单元，其与协作基站进行信息交互，使得所述基站和所述协作基站在所述寻呼机会到达时为所述用户设备的寻呼消息进行联合传输。
  9. 根据权利要求8所述的寻呼装置，其中，所述信息包括如下的一种或多种：所述用户设备的用户设备标识，所述用户设备的寻呼集，所述用户设备的寻呼消息，所述用户设备寻呼集中的服务基站的波束标识，所述用户设备寻呼集中的所述协作基 站的波束标识。
  10. 一种寻呼装置，配置于用户设备中，所述寻呼装置包括：
    寻呼机会确定单元，其基于寻呼集中的一个或多个波束标识确定所述用户设备的寻呼机会；
    寻呼消息接收单元，其在所述寻呼机会到达时接收基于波束的寻呼消息。
  11. 根据权利要求10所述的寻呼装置，其中，所述寻呼机会确定单元还用于：基于寻呼集中的一个或多个波束标识以及所述用户设备的标识确定所述用户设备的寻呼机会。
  12. 根据权利要求10所述的寻呼装置，其中，所述寻呼装置还包括：
    信号测量单元，其对基于波束的接收信号的强度进行测量；
    寻呼集确定单元，其根据测量结果确定所述寻呼集中的一个或多个波束标识。
  13. 根据权利要求12所述的寻呼装置，其中，所述寻呼装置还包括：
    寻呼集上报单元，其显式地或者隐式地向基站上报所述寻呼集。
  14. 根据权利要求10所述的寻呼装置，其中，所述寻呼装置还包括：
    寻呼集接收单元，其接收基站发送的为所述用户设备配置的寻呼集。
  15. 根据权利要求10所述的寻呼装置，其中，所述寻呼集中的波束标识均属于所述用户设备的服务基站，或者属于所述服务基站以及其他基站，或者分别属于不同的基站。
  16. 根据权利要求10所述的寻呼装置，其中，在波束扫描为子帧级别的情况下，所述寻呼机会表示为帧中的子帧编号；在波束扫描为符号级别的情况下，所述寻呼机会表示为帧中的子帧编号以及子帧中的符号编号。
  17. 根据权利要求12所述的寻呼装置，其中，所述信号测量单元用于：对所述用户设备的服务基站发送的波束的信号强度进行测量，和/或，对其他基站发送的波束的信号强度进行测量；
    所述寻呼集中的波束标识包括：所述服务基站发送的波束的标识，和/或，所述其他基站发送的波束的标识。
  18. 根据权利要求10所述的寻呼装置，其中，所述寻呼消息接收单元还用于：在所述寻呼机会到达时监听并判断是否有所述用户设备的寻呼消息，在有所述用户设备的寻呼消息的情况下接收服务基站和/或协作基站发送的寻呼消息；其中所述服务 基站和所述协作基站为所述用户设备的寻呼消息进行联合传输。
  19. 一种通信系统，所述通信系统包括：
    服务基站，其基于所述寻呼集中的一个或多个波束标识确定用户设备的寻呼机会；以及在所述寻呼机会到达时向所述用户设备发送基于波束的寻呼消息；
    用户设备，其基于寻呼集中的一个或多个波束标识确定所述用户设备的寻呼机会；以及在所述寻呼机会到达时接收基于波束的寻呼消息。
  20. 根据权利要求19所述的通信系统，其中，所述通信系统还包括：
    协作基站，其与所述服务基站进行信息交互，并且所述协作基站和所述服务基站在所述寻呼机会到达时为所述用户设备的寻呼消息进行联合传输。
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