WO2016119442A1 - 寻呼方法、装置、mme、基站及用户设备 - Google Patents

寻呼方法、装置、mme、基站及用户设备 Download PDF

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Publication number
WO2016119442A1
WO2016119442A1 PCT/CN2015/087087 CN2015087087W WO2016119442A1 WO 2016119442 A1 WO2016119442 A1 WO 2016119442A1 CN 2015087087 W CN2015087087 W CN 2015087087W WO 2016119442 A1 WO2016119442 A1 WO 2016119442A1
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WIPO (PCT)
Prior art keywords
user equipment
indication information
paging
coverage enhancement
base station
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PCT/CN2015/087087
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English (en)
French (fr)
Inventor
陈宪明
戴博
陆婷
夏树强
刘锟
石靖
张雯
方惠英
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016119442A1 publication Critical patent/WO2016119442A1/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
    • 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
    • H04W68/025—Indirect paging

Definitions

  • the present invention relates to the field of communications, and in particular to a paging method, apparatus, MME, base station, and user equipment.
  • MTC Machine Type Communication
  • M2M Machine to Machine
  • UE User Equipment
  • GSM Global System of Mobile communication
  • LTE Long Term Evolution
  • the cost of user equipment comes mainly from two parts: the baseband processing part and the radio frequency part.
  • reducing the uplink and/or downlink transmission bandwidth of the UE is a very effective way to reduce the cost of the MTC UE, for example, setting all uplink and/or downlink transmissions of the MTC UE.
  • the bandwidth can only be narrowband bandwidth such as 1.4MHz (even if the system bandwidth is much longer than 1.4MHz).
  • the following manners can also be used to further reduce the cost of the MTC UE: a single receive antenna, reduced transmit power, and reduced maximum transport block size (Transport Block Size, TBS for short).
  • the enhanced channel type includes a Physical Uplink/Downlink Shared Channel (PUSCH/PDSCH) and a Physical Uplink/Downlink Control Channel (PUCCH/PDCCH).
  • the coverage enhancement of the physical downlink shared channel PDSCH includes system information block (SIB) data, coverage enhancement of paging messages, and coverage enhancement of unicast service data. In order to accumulate more energy to improve coverage, repeated methods are often used to achieve transmission enhancements for various channel types.
  • SIB system information block
  • the eNB can provide adaptation to the MTC UE characteristics (whether it is limited to the narrowband transmission bandwidth, whether it works in coverage enhancement) Paging process of mode and / or real-time coverage enhancement level, etc.).
  • the eNB when the MTC UE is in the RRC idle Idle state, considering that the eNB does not normally store the context of the MTC UE in the RRC Idle state, and the mobility of the MTC UE and the MTC UE no longer send any uplink signals, the eNB cannot implement the basis based on the eNB. The real-time measurement and/or feedback of the MTC UE mobility is received, so that sufficient characteristics of the paged MTC UE cannot be obtained, and finally the eNB cannot provide a Paging process adapted to the characteristics of the MTC UE. So far, there is no good solution for how to patrol the MTC UE in the RRC Idle state.
  • the present invention provides a paging method, an apparatus, an MME, a base station, and a user equipment, so as to solve at least the paging problem in the related art that cannot implement the user equipment in an idle state.
  • a paging method including: receiving indication information sent by a serving base station of a user equipment; and sending the indication information to when the state of the user equipment is an idle state of a radio resource control a paging base station of the user equipment, wherein the indication information is used by the paging base station to page the user equipment.
  • the indication information includes at least one of the following: a coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • the method before the sending the indication information to the paging base station, the method further includes: receiving, by the serving base station, mobility function indication information, configured to determine whether the user equipment supports mobility, where When the user equipment supports mobility, the paging base station is all base stations within the tracking area; when the user equipment does not support mobility, the paging base station is the original serving base station of the user equipment.
  • the indication information includes coverage enhancement function indication information
  • the user equipment supports coverage enhancement
  • before sending the indication information to the paging base station further comprising: receiving, by the service The indication information of the working mode of the user equipment sent by the base station, where the working mode is an coverage enhancement mode or a non-coverage enhancement mode, and when the user equipment works in the coverage enhancement mode, the indication of the working mode
  • the information further includes indication information of the coverage enhancement level of the user equipment.
  • the method further includes: when the status of the user equipment is a radio resource control idle state, sending the working mode indication information of the user equipment to the Paging the base station, and when the user equipment operates in the coverage enhancement mode, transmitting the indication information of the coverage enhancement level of the user equipment while transmitting the working mode indication information to the paging base station And the paging base station, wherein the paging base station is an original serving base station of the user equipment.
  • a paging method including: when the state of the user equipment is a radio resource control idle state, receiving indication information of the user equipment sent by the mobility management entity MME; The indication information pages the user equipment.
  • the indication information includes at least one of the following: a coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • the receiving the indication information of the user equipment that is sent by the MME includes: receiving, by the paging base station, the indication information that is sent by the MME, where the indication information is obtained by a serving base station of the user equipment. And the indication information is sent to the MME, where the obtaining the indication information comprises: receiving the indication information reported by the user equipment, and the indication information acquired according to the manner in which the user equipment accesses the serving base station.
  • the paging base station when the user equipment supports mobility, the paging base station is all base stations in a tracking area; when the user equipment does not support mobility, the paging base station is the user equipment.
  • the original serving base station when the user equipment supports mobility, the paging base station is all base stations in a tracking area; when the user equipment does not support mobility, the paging base station is the user equipment.
  • the original serving base station when the user equipment supports mobility, the paging base station is all base stations in a tracking area; when the user equipment does not support mobility, the paging base station is the user equipment.
  • the original serving base station when the user equipment supports mobility
  • the method further includes: Receiving, by the paging base station, indication information that is sent by the MME to determine whether an operation mode of the user equipment is an coverage enhancement mode or a non-coverage enhancement mode, and when the user equipment works in an coverage enhancement mode
  • the indication information of the working mode further includes indication information of the coverage enhancement level of the user equipment, where the indication information of the working mode is sent by the serving base station of the user equipment to the MME; The indication information of the working mode pages the user equipment.
  • the serving base station of the user equipment sends the indication information of the working mode and the indication information of the coverage enhancement level of the user equipment to the MME: the user equipment enters the radio resource After the idle state is controlled and before the serving base station deletes the context of the user equipment.
  • paging the user equipment according to the narrowband function indication information of the user equipment comprises: transmitting a paging for paging the user equipment in determining a narrowband range a message, wherein the determining the narrowband range is a predetermined narrowband range, or the determining the narrowband range is a narrowband range notified by the predetermined signaling to the user equipment.
  • paging the user equipment according to the indication information includes one of: sequentially paging the user equipment in a non-coverage enhanced mode and a coverage enhancement mode until receiving a response of the user equipment, where
  • the coverage enhancement mode is a coverage enhancement mode using a maximum coverage enhancement level; the user equipment is always paged in an coverage enhancement mode, wherein the coverage enhancement mode is a coverage enhancement mode using a maximum coverage enhancement level.
  • the transmission in the coverage enhancement mode is a repetition of transmission in the non-coverage enhancement mode; and the transmission in the coverage enhancement mode is occupied.
  • a subframe set for paging the user equipment includes a subframe occupied by the transmission in the non-coverage enhanced mode for paging the user equipment.
  • the repeating of the transmission in the coverage enhancement mode in the non-coverage enhanced mode includes: the transmission of paging data in the coverage enhancement mode is paging data in the non-coverage enhanced mode.
  • the repetition of the transmission, the transmission of the scheduling control information in the coverage enhancement mode is a repetition of the scheduling control information transmission in the non-coverage enhanced mode, wherein the scheduling control information is used to schedule the paging data.
  • Controlling information; and/or, the subframe set occupied by the transmission in the coverage enhancement mode, including the subframe occupied by the transmission in the non-coverage enhanced mode includes: searching in the coverage enhancement mode
  • the subframe set occupied by the call data transmission includes a subframe occupied by the paging data transmission in the non-coverage enhanced mode
  • the subframe set occupied by the scheduling control information transmission in the coverage enhancement mode includes the non-coverage
  • the occupied subframe of the scheduling control information transmission in the enhanced mode wherein the scheduling control information is control information for scheduling the paging data.
  • paging the user equipment according to the working mode indication information when: the working mode is an coverage enhanced mode, sequentially paging the user equipment according to the working mode and the non-covering enhanced mode;
  • the working mode is the non-coverage enhanced mode, the user equipment is paged according to the working mode and the coverage enhanced mode.
  • paging the user equipment according to the coverage enhancement mode when paging the user equipment according to the coverage enhancement mode, paging the user equipment according to a maximum coverage enhancement level or sequentially according to the coverage enhancement level and the coverage enhancement level indicated by the user equipment working mode indication information.
  • the coverage enhancement level above pages the user equipment.
  • paging the user equipment according to the indication information comprises: paging the user according to a non-coverage enhancement mode. device.
  • a paging method including: transmitting indication information for paging a user equipment to a serving base station of the user equipment, wherein the indication information is used for the
  • the serving base station sends the indication information to the mobility management entity MME, so that the paging base station receives the indication information from the MME to perform the user equipment when the state of the user equipment is a radio resource control idle state. Paging.
  • the indication information includes at least one of: coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and mobility function indication information used to determine whether the user equipment supports mobility.
  • the method further includes: when the state of the user equipment is a radio resource control idle state, receiving the paging base station according to the narrowband function of the user equipment a paging message sent by at least one of the indication information and the coverage enhancement function indication information, wherein the narrowband function indication information is used to determine whether the user equipment has a transmission bandwidth limitation.
  • the paging base station is a base station where the user equipment currently camps; or when the user equipment does not support mobility, the paging base station is The original serving base station of the user equipment.
  • the base station currently camped by the user equipment is a base station having the largest downlink reference signal received power among all base stations around the user equipment or a base station having the largest downlink received signal energy among all base stations around the user equipment.
  • receiving, by the paging base station, the paging message sent according to the narrowband function indication information, when the user equipment transmission bandwidth is limited receiving, by the paging base station, the sent in determining a narrowband range a paging message, wherein the determined narrowband range is a predetermined narrowband range or a narrowband range notified by predetermined signaling.
  • the paging message sent by the paging base station according to the coverage enhancement function indication information includes one of the following: when the user equipment supports coverage enhancement, determining according to the downlink reference signal sent by the paging base station The working mode of the user equipment, where the working mode is a coverage enhanced mode or a non-coverage enhanced mode, and the downlink reference signal includes at least one of: a synchronization signal, a physical broadcast channel, and a cell-specific reference signal; The working mode receives a paging message sent by the paging base station in a non-coverage enhanced mode and a coverage enhanced mode; when the user equipment supports coverage enhancement, receiving, by the paging base station, the coverage enhanced mode. a paging message; when the user equipment does not support coverage enhancement, receiving the paging message sent by the paging base station according to a non-coverage enhanced mode.
  • receiving the paging message sent by the paging base station according to the coverage enhancement mode comprises: receiving the paging message sent by the paging base station according to a maximum coverage enhancement level supported by the user equipment.
  • receiving the paging message sent by the paging base station according to the coverage enhancement mode comprises: starting from a current coverage enhancement level of the user equipment And receiving, according to the current coverage enhancement of the user equipment and the coverage enhancement level above the current coverage enhancement level, the coverage enhancement level indicated by the paging base station according to the working mode indication information and the coverage enhancement level above the coverage enhancement level.
  • the row reference signal includes at least one of the following: a synchronization signal, a physical broadcast channel, and a cell-specific reference signal.
  • a paging apparatus including: a first receiving module, configured to receive indication information sent by a serving base station of a user equipment; and a first sending module configured to be in a state of the user equipment When the idle state is controlled for the radio resource, the indication information is sent to the paging base station of the user equipment, where the indication information is used by the paging base station to page the user equipment.
  • the indication information includes at least one of the following: a coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • a mobility management entity MME comprising the apparatus of any of the above.
  • a paging apparatus including: a second receiving module, configured to receive the user equipment sent by a mobility management entity MME when a state of a user equipment is a radio resource control idle state The indication information; the paging module is configured to page the user equipment according to the indication information.
  • the indication information includes at least one of the following: a coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • a base station comprising the apparatus of any of the above.
  • a paging apparatus including: a second sending module, configured to send indication information for paging a user equipment to a serving base station of the user equipment, where The indication information is used by the serving base station to send the indication information to the mobility management entity MME, so that the paging base station receives the said MME from the MME when the state of the user equipment is a radio resource control idle state. Instructing information to page the user equipment.
  • the indication information includes at least one of the following: a coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • the device further includes: a third receiving module, configured to receive, according to the narrowband function indication information and location of the user equipment, the paging base station when the state of the user equipment is a radio resource control idle state And a paging message sent by at least one of the coverage enhancement function indication information, wherein the narrowband function indication information is used to determine whether the user equipment has a transmission bandwidth limitation.
  • a third receiving module configured to receive, according to the narrowband function indication information and location of the user equipment, the paging base station when the state of the user equipment is a radio resource control idle state And a paging message sent by at least one of the coverage enhancement function indication information, wherein the narrowband function indication information is used to determine whether the user equipment has a transmission bandwidth limitation.
  • a user equipment comprising the apparatus of any of the above.
  • the indication information sent by the serving base station of the user equipment is used; when the state of the user equipment is the radio resource control idle state, the indication information is sent to the paging base station of the user equipment, where The indication information is used by the paging base station to page the user equipment, which solves the problem that the paging device of the user equipment in the idle state cannot be implemented in the related art, thereby achieving the realization of the user equipment in the idle state.
  • the effect of paging is used
  • FIG. 1 is a flow chart of a first paging method according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of a second paging method according to an embodiment of the present invention.
  • FIG. 3 is a flow chart of a third paging method according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of a first paging apparatus according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a mobility management entity MME according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a second paging apparatus according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a base station according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a third paging apparatus according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing a preferred structure of a third paging apparatus according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of paging an MTC UE in an RRC Idle state according to Embodiment 1 of the present invention.
  • FIG. 12 is a schematic diagram of reporting, by the serving eNB of the UE, the UE coverage enhancement related indication information to the MME according to the second embodiment of the present invention.
  • FIG. 13 is a schematic diagram of an MME notifying an original serving eNB of the UE by using the UE coverage enhancement related indication information according to Embodiment 2 of the present invention
  • FIG. 14 is a schematic diagram of repetition of coverage enhancement transmission as non-coverage enhanced transmission, in accordance with an embodiment of the present invention.
  • FIG. 1 is a flowchart of a first paging method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 Receive indication information sent by a serving base station of the user equipment.
  • Step S104 When the state of the user equipment is the radio resource control idle state, the indication information is sent to the paging base station of the user equipment, where the indication information is used by the paging base station to page the user equipment.
  • the user equipment when the user equipment is idle, the user equipment can be advertised by using the indication information sent by the serving base station of the user equipment, which is pre-received, so that when the user equipment is in an idle state, sufficient user equipment can be acquired.
  • the feature is to improve the success rate of paging the user equipment, and solves the problem that the paging problem of the user equipment in the idle state cannot be implemented in the related art, thereby achieving the effect of paging the user equipment in the idle state. .
  • the foregoing indication information may be of a plurality of types.
  • the foregoing indication information may include at least one of the following: an coverage enhancement function indication information for determining whether the user equipment supports coverage enhancement; and determining the user equipment. Whether to transmit bandwidth-limited narrowband function indication information.
  • the method before the sending the indication information to the paging base station, the method further includes: receiving mobility function indication information sent by the serving base station of the user equipment to determine whether the user equipment supports mobility, Wherein, when the user equipment supports mobility, the paging base station is all base stations within the tracking area; when the user equipment does not support mobility, the paging base station is the original serving base station of the user equipment. Thereby, it can decide which base stations to send the indication information to according to whether the user equipment supports mobility.
  • the method further includes: receiving the indication information of the working mode of the user equipment sent by the serving base station, where The working mode is the coverage enhancement mode or the non-coverage enhancement mode, and when the user equipment works in the coverage enhancement mode, the indication information of the working mode further includes indication information of the coverage enhancement level of the user equipment.
  • the method when the user equipment supports the coverage enhancement, the method further includes: when the state of the user equipment is the radio resource control idle state, sending the working mode indication information of the user equipment to the paging base station, and When the user equipment is working in the coverage enhancement mode, the operation mode indication information is sent to the paging base station, and the indication information of the coverage enhancement level of the user equipment is also sent to the paging base station, where the paging base station is the user equipment.
  • the original serving base station when the state of the user equipment is the radio resource control idle state, sending the working mode indication information of the user equipment to the paging base station, and When the user equipment is working in the coverage enhancement mode, the operation mode indication information is sent to the paging base station, and the indication information of the coverage enhancement level of the user equipment is also sent to the paging base station, where the paging base station is the user equipment.
  • the original serving base station when the state of the user equipment is the radio resource control idle state, sending the working mode indication information of the user equipment to the paging
  • FIG. 2 is a flowchart of a second paging method according to an embodiment of the present invention. As shown in FIG. 2, the method includes The following steps:
  • Step S202 when the state of the user equipment is the radio resource control idle state, receiving the indication information of the user equipment sent by the mobility management entity MME;
  • Step S204 paging the user equipment according to the indication information.
  • the user equipment when the user equipment is idle, the user equipment is advertised according to the indication information sent by the MME, so that when the user equipment is in an idle state, sufficient user equipment characteristics can be acquired, thereby improving paging of the user equipment.
  • the success rate solves the problem that the paging problem of the user equipment in the idle state cannot be realized in the related art, thereby achieving the effect of realizing paging to the user equipment in the idle state.
  • the foregoing indication information may be of a plurality of types.
  • the foregoing indication information may include at least one of the following: the coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and is used to determine the user equipment. Whether to transmit bandwidth-limited narrowband function indication information.
  • the receiving the indication information of the user equipment sent by the MME includes: receiving, by the paging base station, the indication information sent by the MME, where the indication information is sent by the serving base station of the user equipment to the MME after acquiring the indication information.
  • the obtaining indication information includes receiving the indication information reported by the user equipment and the indication information acquired according to the manner in which the user equipment accesses the serving base station.
  • the paging base station When the user equipment supports mobility, the paging base station is all base stations within the tracking area; when the user equipment does not support mobility, the paging base station is the original serving base station of the user equipment.
  • the method further includes: receiving, by the paging base station, the MME.
  • the indication information for determining whether the working mode of the user equipment is the coverage enhanced mode or the non-coverage enhanced mode, and when the user equipment works in the coverage enhanced mode, the indication information of the working mode further includes the user equipment The indication information of the coverage enhancement level, wherein the indication information of the working mode is sent by the serving base station of the user equipment to the MME; and the user equipment is paged according to the indication information of the working mode.
  • the serving base station may send the indication information of the working mode and the indication information of the coverage enhancement level of the user equipment to the MME at a specific time.
  • the serving base station of the user equipment indicates the working mode at the following time.
  • the indication information of the coverage enhancement level of the information and the user equipment is sent to the MME: after the user equipment enters the radio resource control idle state and before the serving base station deletes the context of the user equipment.
  • paging the user equipment according to the narrowband function indication information of the user equipment comprises: transmitting a paging message for paging the user equipment in determining a narrowband range, where The determined narrowband range is a predetermined narrowband range, or the determined narrowband range is a narrowband range that is signaled to the user equipment by predetermined signaling.
  • paging the user equipment according to the indication information includes one of: sequentially paging the user equipment in the non-coverage enhancement mode and the coverage enhancement mode until receiving The response of the user equipment, wherein the coverage enhancement mode is a coverage enhancement mode using a maximum coverage enhancement level; the user equipment is always paged in an coverage enhancement mode, wherein the coverage enhancement mode is a coverage enhancement mode using a maximum coverage enhancement level.
  • the transmission in the coverage enhancement mode is a repetition of transmission in the non-coverage enhanced mode; the subframe used to page the user equipment occupied by the transmission in the coverage enhancement mode
  • the set contains subframes used for paging user equipment occupied by transmissions in non-coverage enhanced mode.
  • the repeating of the transmission in the coverage enhancement mode in the non-coverage enhanced mode may include: the transmission of the paging data in the coverage enhanced mode is the paging data in the non-coverage enhanced mode.
  • the repetition of the transmission, the transmission of the scheduling control information in the coverage enhancement mode is a repetition of the scheduling control information transmission in the non-coverage enhanced mode, wherein the scheduling control information is control information for scheduling paging data; and/or, coverage enhancement
  • the subframe set occupied by the transmission in the mode includes the subframe occupied by the transmission in the non-coverage enhanced mode, and the subframe set occupied by the paging data transmission in the coverage enhanced mode includes the paging data in the non-coverage enhanced mode.
  • the subframe occupied by the transmission, the subframe set occupied by the scheduling control information transmission in the enhanced mode includes the occupied subframe of the scheduling control information transmission in the non-coverage enhanced mode, where the scheduling control information is used for scheduling Control information for paging data.
  • Paging the user equipment according to the foregoing working mode indication information including: when the working mode is the coverage enhancement mode, sequentially paging the user equipment according to the working mode and the non-coverage enhanced mode; when the working mode is the non-coverage enhanced mode, sequentially following The working mode and the coverage enhanced mode page the user equipment.
  • the user equipment when the user equipment is paged according to the coverage enhancement mode, the user equipment is paged according to the maximum coverage enhancement level or the coverage enhancement level indicated by the user equipment working mode indication information and the coverage enhancement level is used to page the user equipment. .
  • paging the user equipment according to the indication information includes: paging the user equipment according to the non-coverage enhancement mode.
  • FIG. 3 is a flowchart of a third paging method according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:
  • Step S302 the indication information for paging the user equipment is sent to the serving base station of the user equipment, where the indication information is used by the serving base station to send the indication information to the mobility management entity MME, so that the paging base station is at the user equipment.
  • the status is that the radio resource control idle state receives the indication information from the MME to page the user equipment.
  • the indication information for paging the user equipment before the user equipment is in an idle state Sending to the serving base station, and then transmitting it to the MME by the serving base station, the MME sends the paging message to the paging base station, so that the paging base station can page the user equipment according to the indication information when the user equipment is idle. Therefore, the feature that the user equipment can be obtained when the user equipment is in an idle state is improved, thereby improving the success rate of paging the user equipment, and solving the problem that the user equipment in the idle state cannot be realized in the related art. The problem is called, and the effect of achieving paging to the user equipment in the idle state is achieved.
  • the foregoing indication information may include at least one of: coverage enhancement function indication information for determining whether the user equipment supports coverage enhancement; mobility function indication information for determining whether the user equipment supports mobility.
  • the method further includes: when the state of the user equipment is the radio resource control idle state, the receiving paging base station according to the narrowband function indication information and the coverage enhancement of the user equipment a paging message sent by at least one of the function indication information, wherein the narrowband function indication information is used to determine whether the user equipment has a transmission bandwidth limitation.
  • the paging base station When the user equipment supports mobility, the paging base station is the base station where the user equipment currently camps; or when the user equipment does not support mobility, the paging base station is the original serving base station of the user equipment.
  • the base station currently camped on by the user equipment is a base station having the largest downlink reference signal received power among all base stations around the user equipment or a base station having the largest downlink received signal energy among all base stations around the user equipment.
  • the paging message sent by the receiving paging base station according to the narrowband function indication information includes: when the user equipment transmission bandwidth is limited, receiving the paging message sent by the paging base station in determining the narrowband range, where The determined narrowband range is a predetermined narrowband range or a narrowband range notified by predetermined signaling.
  • the paging message sent by the receiving paging base station according to the coverage enhancement function indication information may include one of the following: when the user equipment supports coverage enhancement, determining the user equipment according to the downlink reference signal sent by the paging base station.
  • the working mode is a coverage enhancement mode or a non-coverage enhancement mode, where the downlink reference signal includes at least one of: a synchronization signal, a physical broadcast channel, and a cell-specific reference signal; and receiving the paging base station according to the determined working mode.
  • a paging message sent in a non-coverage enhanced mode and an overlay enhanced mode a paging message sent by the paging base station according to the coverage enhancement mode when the user equipment supports coverage enhancement; and a paging reception when the user equipment does not support coverage enhancement
  • the paging message sent by the base station according to the non-coverage enhanced mode a paging message sent in a non-coverage enhanced mode and an overlay enhanced mode.
  • the paging message sent by the receiving paging base station according to the coverage enhancement mode includes: receiving a paging message sent by the paging base station according to a maximum coverage enhancement level supported by the user equipment.
  • the paging message sent by the receiving paging base station according to the coverage enhancement mode includes: starting from the current coverage enhancement level of the user equipment, and sequentially according to the current coverage enhancement of the user equipment and the current coverage enhancement level.
  • the coverage enhancement level receiving paging station sequentially sends the paging message according to the coverage enhancement level indicated by the working mode indication information and the coverage enhancement level above the coverage enhancement level until the correct Receiving a paging message, where the current coverage enhancement level of the user equipment is obtained by measuring a downlink reference signal of the original serving base station, where the downlink reference signal includes at least one of the following: a synchronization signal, a physical broadcast channel, and a cell-specific reference. signal.
  • a paging device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and is not described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 4 is a block diagram showing the structure of a first paging apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes a first receiving module 42 and a first transmitting module 44, which will be described below.
  • the first receiving module 42 is configured to receive the indication information sent by the serving base station of the user equipment; the first sending module 44 is connected to the first receiving module 42, and is configured to: when the state of the user equipment is the radio resource control idle state, The indication information is sent to the paging base station of the user equipment, wherein the indication information is used for paging the base station to page the user equipment.
  • the foregoing indication information includes at least one of the following: an coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement; and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • FIG. 5 is a structural block diagram of a mobility management entity MME according to an embodiment of the present invention. As shown in FIG. 5, the MME 52 includes the first paging device 54 of any of the above.
  • FIG. 6 is a structural block diagram of a second paging apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes a second receiving module 62 and a paging module 64, which will be described below.
  • the second receiving module 62 is configured to: when the state of the user equipment is the radio resource control idle state, receive the indication information of the user equipment sent by the mobility management entity MME; the paging module 64 is connected to the second receiving module 62, and is configured to To page the user equipment according to the indication information.
  • the foregoing indication information includes at least one of the following: an coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement, and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • FIG. 7 is a structural block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 7, the base station 72 includes the second paging device 74 of any of the above.
  • FIG. 8 is a block diagram showing the structure of a third paging apparatus according to an embodiment of the present invention. As shown in FIG. 8, the apparatus includes a second transmitting module 82, which will be described below.
  • the second sending module 82 is configured to send the indication information for paging the user equipment to the serving base station of the user equipment, where the indication information is used by the serving base station to send the indication information to the mobility management entity MME.
  • the paging base station receives the indication information from the MME to page the user equipment when the state of the user equipment is the radio resource control idle state.
  • the foregoing indication information may include at least one of the following: an coverage enhancement function indication information used to determine whether the user equipment supports coverage enhancement; and narrowband function indication information used to determine whether the user equipment transmits bandwidth limitation.
  • FIG. 9 is a block diagram showing a preferred structure of a third paging apparatus according to an embodiment of the present invention. As shown in FIG. 9, the apparatus includes a third receiving module 92 in addition to all the modules shown in FIG. The device is described.
  • the third receiving module 92 is connected to the second sending module 82, and is configured to: when the state of the user equipment is the radio resource control idle state, the receiving paging base station is configured according to the narrowband function indication information and the coverage enhancement function indication information of the user equipment. At least one of the transmitted paging messages, wherein the narrowband function indication information is used to determine whether the user equipment has a transmission bandwidth limitation.
  • FIG. 10 is a structural block diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 10, the user equipment 102 includes a third paging apparatus 104 of any of the above.
  • the present invention will be described below by taking a paging method applied to an MTC device as an example.
  • the MME On the Mobility Management Entity (MME) side, when the UE (ie, the user equipment mentioned above) is in the RRC Connected state, the MME receives the indication information of the UE's narrowband function, coverage enhancement, and mobility function of the serving eNB of the UE. At least one of them;
  • the MME When the UE is in the RRC Idle state, the MME notifies at least one of the narrowband function of the UE and the indication information of the coverage enhancement function to the paging eNB of the UE; wherein the indication information of the narrowband function, the coverage enhancement function, and the mobility function are used respectively It is determined whether the UE has limited transmission bandwidth, whether coverage enhancement is supported, and whether mobility is supported.
  • MTC UEs may be limited by narrowband transmission bandwidth; in order to achieve extended coverage targets, some MTC UEs must support coverage enhancement; considering that some MTC devices may not move after installation, Class MTC UE support mobility is not necessary.
  • the MME When the UE is in the RRC Connected state, the MME is caused to receive at least one of the UE narrowband function, the coverage enhancement, and the mobility function indication information of the serving eNB of the UE, and when the UE is in the RRC Idle state, the MME is notified of the UE narrowband
  • At least one of the function and the indication information of the coverage enhancement function to the paging eNB of the UE ensures to a certain extent that when the UE is in the RRC Idle state, the paging eNB can also acquire sufficient UE characteristics, thereby enabling the eNB to provide appropriate
  • the Paging process of the MTC UE feature finally improves the probability of success of the Paging process.
  • the method avoids introducing a large amount of storage overhead for storing the LTE Idle state MTC UE context on the eNB side.
  • the paging eNB for informing at least one of the narrowband function and the coverage enhancement function of the UE to the UE includes: when the UE supports mobility, the paging eNB is all eNBs in the tracking area (Tracking Area); otherwise, the paging eNB The original serving eNB for the UE.
  • the TrackingArea is a set of multiple neighboring eNBs, and the multiple neighboring eNBs may have the same or different Tracking Area Codes.
  • the UE When the UE supports mobility, the UE may be located in one of the multiple eNBs. Within the coverage, but the MME is not sure which eNB is specifically, so the above multiple eNBs are required to simultaneously page the UE.
  • the original serving eNB is a serving eNB that provides services for the UE before entering the RRC Idle state; when the UE does not support mobility, the UE will always be located within the coverage of the original serving eNB, so only the original serving eNB needs to page the UE. .
  • the method further includes:
  • the MME can know whether the UE is currently working in the coverage enhancement mode or the non-coverage enhancement mode, and if the UE works in the coverage enhancement mode, what is its specific coverage enhancement level.
  • the above information may be utilized by the MME to assist the original serving eNB of the UE to provide a paging Paging procedure that is more adaptable to the MTC UE characteristics.
  • the method further includes:
  • the UE For the original serving eNB of the UE, when the UE supports the coverage enhancement, the UE indicates the indication information of the working mode of the UE to the eNB, where the working mode is the coverage enhanced or the non-coverage enhanced mode; and when the UE works in the coverage enhanced mode, the notification is performed.
  • the UE covers the indication information of the enhancement level to the eNB.
  • the original serving eNB of the UE can learn whether the UE history works in the coverage enhancement mode or the non-coverage enhancement mode by using the above method, and if the UE history is working in the coverage enhancement mode, its specific history coverage enhancement is performed. What is the rating?
  • the above information (including the working mode and/or the coverage enhancement level) may be utilized by the original serving eNB of the UE to provide a more adaptable Paging process of MTC UE characteristics.
  • the historical working mode and/or coverage enhancement level indication information of the UE in one eNB is not very referenced or referenced to other subsequent eNBs. Meaning, so it is advisable to only inform the UE's original serving eNB of the UE operating mode and/or coverage enhancement level indication information.
  • the embodiment of the present invention further provides a paging method for the machine type communication MTC device, on the base station eNB side, when When the UE is in the RRC Connected state, the serving eNB sends the indication information of the UE narrowband function to the MME, or receives at least one of the coverage enhancement function and the mobility function indication information from the UE and sends it to the MME, or receives Transmitting at least one of the coverage enhancement function and the mobility function indication information from the UE and transmitting the indication information of the UE narrowband function to the MME;
  • the paging eNB pages the UE according to at least one of the UE narrowband function and the coverage enhancement function indication information from the MME; wherein the narrowband function, the coverage enhancement function, and the mobility function indication information respectively It is used to determine whether the UE has limited transmission bandwidth, whether to support coverage enhancement, and whether mobility is supported.
  • MTC UEs may be limited by narrowband transmission bandwidth; in order to achieve extended coverage targets, some MTC UEs must support coverage enhancement; considering that some MTC devices may not move after installation, Class MTC UE support mobility is not necessary.
  • the serving eNB When the UE is in the RRC Connected state, the serving eNB is caused to transmit at least one of the UE narrowband function, coverage enhancement, and mobility function indication information to the MME, and when the UE is in the RRC Idle state, the paging eNB is made according to the MME
  • At least one of the UE narrowband function and the indication information of the coverage enhancement function ensures that when the UE is in the RRC Idle state, the paging eNB can also acquire sufficient UE characteristics, thereby enabling the paging eNB to Providing a Paging process adapted to the characteristics of the MTC UE finally improves the probability of success of the Paging process; in addition, the method avoids introducing a large amount of storage overhead for storing the LTE Idle state MTC UE context on the eNB side.
  • the foregoing narrowband function does not require explicit indication information, that is, the serving eNB does not need to receive indication information of the narrowband function from the UE, because the eNB can determine the manner in which the UE accesses the eNB, that is, whether it is in accordance with the narrowband access rule. Or the resource successfully accesses the narrowband subsystem of the eNB, and if so, the eNB can confirm that the UE is limited by the narrowband transmission bandwidth.
  • the paging eNB pages the UE in a narrowband transmission mode.
  • the narrowband transmission mode includes: the Paging message is transmitted in a narrowband range that is predefined or indicated by the eNB.
  • the paging eNB is one of all eNBs in the TrackingArea range. Otherwise, the paging eNB is the original serving eNB of the UE.
  • the TrackingArea is a set of multiple neighboring eNBs, and the multiple neighboring eNBs may have the same or different Tracking Area Codes.
  • the UE When the UE supports mobility, the UE may be located in one of the multiple eNBs. Within the coverage, but the MME is not sure which eNB is specifically, so the above multiple eNBs are required to simultaneously page the UE.
  • the original serving eNB is a serving eNB that provides services for the UE before entering the RRC Idle state; when the UE does not support mobility, the UE will always be located within the coverage of the original serving eNB, so only the original serving eNB needs to page the UE. .
  • the method further includes: when the UE supports the coverage enhancement, sending the UE working mode indication information to the MME, where the working mode is an coverage enhanced or a non-coverage enhanced mode; and, when the UE When working in the coverage enhancement mode, the indication information of the UE coverage enhancement level is sent to the MME.
  • the MME can know whether the UE is currently working in the coverage enhancement mode or the non-coverage enhancement mode, and if the UE works in the coverage enhancement mode, what is its specific coverage enhancement level.
  • the above information may be utilized by the MME to assist the original serving eNB of the UE to provide a Paging procedure that is more adaptable to the MTC UE characteristics.
  • the serving eNB may send the indication information of the working mode and the coverage enhancement level to the MME at the following time: after the UE enters the RRC Idle state and before the serving eNB deletes the UE context.
  • the method ensures that the working mode and coverage enhancement level information sent to the MME storage is up-to-date and has minimal control overhead (avoiding repeated reporting of operating mode and coverage enhancement level information).
  • Paging the UE according to the UE coverage enhancement function indication information from the MME including: when the UE supports the coverage enhancement function, the paging eNB sequentially pages in the non-coverage enhancement and coverage enhancement mode until receiving uplink data from the UE;
  • the paging eNB first pages X times in a non-coverage enhanced mode (X is a positive integer greater than or equal to 1), and if the uplink data from the UE is not received, the paging enhanced mode is used; wherein, when paging the eNB, Covering the enhanced mode Paging UE always pages the UE according to the maximum coverage enhancement level; this method ensures the success of paging the UE, whether the UE is working in the coverage enhancement mode or the non-coverage enhancement mode, and when the UE works in coverage enhancement In the mode, regardless of the coverage enhancement level the UE is in.
  • coverage enhanced transmission mode always advertise the UE in coverage enhancement mode and according to the maximum coverage enhancement level; coverage enhanced transmission mode
  • the repetition of the non-coverage enhanced transmission, and the subframe set occupied by the coverage enhanced transmission includes the subframe occupied by the non-coverage enhanced transmission.
  • the method ensures that the UE in the non-coverage enhanced mode can also correctly receive the Paging data transmitted in the coverage enhanced mode, and finally ensures the success of paging the UE regardless of whether the UE works in the coverage enhancement mode or the non-cover enhancement mode, and when When the UE works in the coverage enhancement mode, no matter what coverage enhancement level the UE is in.
  • Paging the UE according to the UE coverage enhancement function indication information from the MME including: when the paging eNB is the UE original serving eNB and the UE supports coverage enhancement, paging the UE according to the UE working mode and the coverage enhancement level indication information from the MME,
  • the working mode is an coverage enhancement or a non-coverage enhancement mode.
  • the original serving eNB of the UE can learn whether the UE history works in the coverage enhancement mode or the non-coverage enhancement mode by using the above method, and if the UE history is working in the coverage enhancement mode, its specific history coverage enhancement is performed. What is the rating?
  • the above information (including the working mode and/or the coverage enhancement level) may be utilized by the original serving eNB of the UE to provide a paging process that is more adaptable to the characteristics of the MTC UE.
  • the historical working mode and/or coverage enhancement level indication information of the UE in one eNB is not very referenced or referenced to other subsequent eNBs. Meaning, so it is only desirable for the original serving eNB to receive UE operating mode and/or coverage enhancement level indication information from the MME.
  • the UE original serving eNB sequentially pages the UE according to the working mode indicated by the UE working mode indication information and other working modes until the uplink data from the UE is received.
  • the UE original serving eNB first pages Y times in the above-mentioned indicated working mode (Y is a positive integer greater than or equal to 1), and if no uplink data from the UE is received, it is paged in another working mode.
  • Y is a positive integer greater than or equal to 1
  • paging the UE in priority according to the historical working mode avoids unnecessary paging overhead and delay to some extent.
  • Z is a positive integer greater than or equal to 1
  • Y is the number of pagings in the coverage enhancement mode
  • the paging eNB always pages the UE in the non-coverage enhanced mode.
  • a method is also provided for the machine type communication MTC device, in the terminal side: when the UE is in the RRC Connected state, in order to solve the problem that the existing paging cannot be implemented for the user equipment in the idle state.
  • At least one of the indication information of the coverage enhancement and mobility function is sent to the eNB; when the UE is in the RRC Idle state, the Paging message is received according to the degree of support of at least one of the narrowband function, the coverage enhancement, and the mobility function;
  • the indication information of the narrowband function, the coverage enhancement function, and the mobility function are respectively used to determine whether the UE has limited transmission bandwidth, whether coverage enhancement is supported, and whether mobility is supported.
  • the eNB By transmitting at least one of the indication information of the coverage enhancement and mobility function to the eNB when the UE is in the RRC Connected state, it is ensured that at least one of the indication information and the indication information of the narrowband function of the UE can be timely performed by the eNB.
  • the MME is forwarded to the MME to ensure that the eNB can obtain sufficient UE characteristics from the MME when the UE is in the RRC Idle state, so that the eNB can provide the Paging process adapted to the characteristics of the MTC UE, and finally improve the Paging process. The probability of success.
  • the UE When the UE is in the RRC Idle state, the UE is enabled to receive the Paging message according to the degree of support of at least one of the narrowband function, the coverage enhancement, and the mobility function, ensuring that the UE can provide the adapted Paging message receiving process according to the UE characteristics, and finally Improve the probability of success of Paging reception.
  • Receiving the Paging message according to the support degree of the narrowband function includes: when the UE transmission bandwidth is limited, the UE receives the Paging message according to the narrowband transmission mode.
  • the narrowband transmission mode includes: the Paging message is received within a narrowband range predefined or indicated by the eNB.
  • Receiving the Paging message according to the support level of the coverage enhancement and the mobility function including: when the UE supports the coverage enhancement function, the UE determines the current working mode according to the downlink reference signal from the eNB, and receives the Paging message according to the working mode, where the working mode is
  • the coverage enhancement or non-coverage enhancement mode includes: a synchronization signal, a physical broadcast channel, and a cell-specific reference signal.
  • the UE may obtain a Reference Signal Receive Power (RSRP) by measuring a cell-specific reference signal.
  • RSRP Reference Signal Receive Power
  • the UE receives the Paging message according to the coverage enhancement mode. Otherwise, The Paging message is received in a non-coverage enhanced mode.
  • the method ensures that the UE is able to select an appropriate mode of operation based on the real-time channel environment.
  • the eNB When the UE supports mobility, the eNB is the eNB currently camped by the UE; otherwise, the eNB is the original serving eNB of the UE.
  • the currently camped eNB is one of the largest downlink RSRP or downlink received signal energy among all eNBs around the UE.
  • the eNB where the UE camps is not fixed, so that the UE receives the Paging message from the currently camping eNB, ensuring the receiving performance of the paging message; when the UE does not support mobility, the UE camping eNB always It is the original serving eNB of the UE.
  • the UE When the UE receives the Paging message according to the coverage enhancement mode, it is always connected according to the maximum coverage enhancement level. Received.
  • the eNB transmits the paging message in the coverage enhancement mode and always according to the maximum coverage enhancement level, the above method provides a receiving mode adapted to the transmission mode, and finally ensures the success rate of receiving the paging message once.
  • the eNB When the eNB is the original serving eNB of the UE and receives the Paging message according to the coverage enhancement mode, starting from the current coverage enhancement level, the current coverage enhancement level and all coverage enhancement levels above the current coverage enhancement level are sequentially tried until the Paging is correctly received. Message. The UE receives G times according to the coverage enhancement level and the coverage enhancement level above the current coverage enhancement level, until the Paging message is correctly received, where G is greater than or equal to 1. Integer.
  • Z is much larger than G.
  • the above method provides a reception mode adapted to the transmission mode, and finally ensures the same.
  • the current coverage enhancement level is obtained based on the measurement of the downlink reference signal from the UE original serving eNB; for example, the UE may obtain the reference signal received power RSRP by measuring the cell-specific reference signal, when the RSRP is located at the When the value interval is used, the current coverage enhancement level is the first coverage enhancement level, and when the second value interval is located, the current coverage enhancement level is the second coverage enhancement level, and so on.
  • the Paging message is received according to the degree of support of the coverage enhancement and mobility functions, including: when the UE does not support the coverage enhancement function, the UE always receives the Paging message in the non-coverage enhanced mode.
  • the MME when the UE is in the RRC Connected state, the MME is configured to receive at least one of the UE narrowband function, the coverage enhancement, and the mobility function indication information from the eNB, and when the UE is in the RRC Idle state, The MME is notified to the eNB by at least one of the indication information of the narrowband function and the coverage enhancement function of the UE. To a certain extent, it is ensured that the eNB can also acquire sufficient UE features when the UE is in the RRC Idle state, and finally improves the probability of success of the Paging process.
  • the indication information is indirectly indicated by the indication information of the UE type; for example,
  • the existing Rel-12 Low Cost UE type ie Category 0
  • the Rel-13 Low Complexity UE type that may be introduced in the future means Support for narrowband functionality, as well as coverage enhancements for the Rel-13 low complexity UE type means support for both narrowband and coverage enhancements.
  • FIG. 11 is a schematic diagram of paging an MTC UE in an RRC Idle state according to Embodiment 1 of the present invention.
  • the paging method includes the following steps:
  • Step S1102 When the UE is in the RRC Connected state, the UE reports the indication information of the coverage enhancement and mobility function to the serving eNB to indicate to the serving eNB whether it supports coverage enhancement and mobility.
  • Step S1104 After the serving eNB receives the indication information of the coverage enhancement and mobility function from the UE, the serving eNB forwards the indication information of the coverage enhancement and mobility function and the indication information of the narrowband function to the MME.
  • the indication information of the narrowband function, the coverage enhancement function, and the mobility function are used to determine whether the UE has limited transmission bandwidth, whether coverage enhancement is supported, and whether mobility is supported, and the narrowband function does not require explicit indication information, that is, the service.
  • the eNB does not need to receive indication information of the narrowband function from the UE because the eNB can determine whether the UE successfully accesses the narrowband subsystem according to narrowband access rules or resources, and if so, the eNB can confirm that the UE is limited by the narrowband transmission bandwidth.
  • Step S1106 When the UE is in the RRC Idle state, the MME notifies the paging eNB of the indication information of the narrowband and coverage enhancement function of the UE to indicate to the paging eNB whether the UE supports coverage enhancement and mobility.
  • Step S1108 After the paging eNB receives the indication information of the narrowband and coverage enhancement function from the MME, the paging eNB pages the UE according to the indication information of the UE narrowband and coverage enhancement function.
  • the paging eNB is one of all eNBs in the tracking area (Tracking Area); otherwise, the paging eNB is only the original serving eNB of the UE.
  • the paging eNB pages the UE (transmission Paging message) within a predetermined narrowband range that is predefined or indicated by the eNB.
  • the paging eNB When the UE supports coverage enhancement, it is assumed that all paging eNBs use the same operation (the original serving eNB that does not distinguish the UE and other eNBs other than the original serving eNB), specifically, the paging eNB sequentially performs non-coverage enhancement and coverage.
  • the coverage enhanced transmission mode is a repetition of the non-coverage enhanced transmission.
  • the paging eNB When the foregoing UE does not support coverage enhancement, specifically, the paging eNB always pages in a non-coverage enhanced mode.
  • FIG. 12 is a schematic diagram of reporting, by the serving eNB of the UE, the UE coverage enhancement related indication information to the MME according to the second embodiment of the present invention.
  • the serving eNB forwards the indication information from the UE coverage enhancement function to the MME, and determines whether the UE supports coverage enhancement; if yes, the serving eNB continues to determine whether the UE works. In coverage enhancement mode. If the UE is working in the coverage enhancement mode, the serving eNB transmits the indication information of the working mode (specifically, the coverage enhancement mode) of the UE and the indication information of the corresponding coverage enhancement level to the MME at a subsequent determined moment; otherwise, the serving eNB is The subsequent determined moments only transmit indication information of the working mode (specifically, the non-coverage enhanced mode) of the UE to the MME.
  • the serving eNB transmits the indication information of the working mode (specifically, the coverage enhancement mode) of the UE and the indication information of the corresponding coverage enhancement level to the MME at a subsequent determined moment; otherwise, the serving eNB is The subsequent determined moments only transmit indication information of the working mode (specifically, the non-coverage enhanced mode) of the UE to the MME.
  • the indication information of the coverage enhancement function is used to determine whether the UE supports the coverage enhancement; the working mode is the coverage enhancement or the non-coverage enhancement mode; the foregoing determining moment is after the UE enters the RRC Idle state and before the serving eNB deletes the UE context.
  • FIG. 13 is a schematic diagram of an MME notifying an original serving eNB of the UE by using the UE coverage enhancement related indication information according to the second embodiment of the present invention; as shown in FIG. 13, when the UE is in the RRC Idle state, the MME overwrites the UE. After the indication information of the enhanced function is notified to the original serving eNB of the UE, it is determined whether the UE supports the coverage enhancement; if yes, the MME continues to determine whether the UE previously operates in the coverage enhancement mode.
  • the MME continues to transmit the indication information of the working mode (specifically, the coverage enhancement mode) of the UE and the indication information of the corresponding coverage enhancement level to the original serving eNB of the UE; otherwise, the MME is only
  • the indication information of the working mode (specifically, the non-coverage enhanced mode) of the UE is continuously transmitted to the original serving eNB of the UE.
  • the indication information of the coverage enhancement function is used to determine whether the foregoing UE supports coverage enhancement; and the working mode is an coverage enhancement or a non-coverage enhancement mode.
  • the UE When the original serving eNB of the UE receives the indication information from the MME indicating that the UE works in the non-coverage enhanced mode, the UE is sequentially paged in the non-coverage enhanced working mode and the coverage enhanced working mode until receiving the UE from the UE. Uplink data; wherein the above-mentioned paging in the coverage enhanced working mode is always paged according to the maximum coverage enhancement level.
  • the original serving eNB of the UE receives the indication information from the MME indicating that the UE works in the coverage enhancement mode and the corresponding coverage enhancement level, the UE is sequentially paged in the coverage enhanced working mode and the non-coverage enhanced working mode until receiving.
  • the coverage enhanced working mode paging is started from the coverage enhancement level indicated by the coverage enhancement level indication information, and all coverage enhancement levels above the coverage enhancement level are sequentially tried until The maximum coverage enhancement level or acknowledgment of receiving uplink data from the UE.
  • FIG. 14 is a schematic diagram of repetition of coverage enhancement transmission to non-coverage enhanced transmission, in accordance with an embodiment of the present invention
  • (a), (b), and (c) are schematic diagrams 1, 2, and 3 of repetition of coverage enhancement transmission as non-coverage enhanced transmission, respectively, according to an embodiment of the present invention.
  • the coverage enhancement transmission is a repetition of the non-coverage enhanced transmission: coverage
  • the enhanced Paging data transmission is only N repetitions of the non-coverage enhanced Paging data transmission, and one of the N subframes used to cover the enhanced Paging data transmission (in this embodiment, the fifth of the N subframes) is used for Non-coverage enhanced transmission of subframes.
  • the Paging data and the corresponding scheduling control information exist in the same subframe, also referred to as the same subframe scheduling; in this case, the coverage enhanced transmission is non-covered.
  • the effect of enhancing the repetition of the transmission is that the coverage enhanced Paging data transmission is N repetitions of the non-coverage enhanced Paging data transmission, and the transmission of the coverage enhanced scheduling control information is the M repetition of the transmission of the non-coverage enhanced scheduling control information, and
  • One of the M subframes covering the enhanced scheduling control information transmission (in the present embodiment, the second of the M subframes) is a subframe for non-coverage enhanced scheduling control information transmission, for coverage enhancement.
  • One of the N subframes of the Paging data transmission (in the present embodiment, the second of the N subframes) is a subframe for non-coverage enhanced Paging data transmission.
  • the coverage enhancement transmission is a repetition of the non-coverage enhanced transmission: the coverage enhanced Paging data transmission is N repetitions of the non-coverage enhanced Paging data transmission, and The coverage enhanced scheduling control information transmission is M repetitions of non-coverage enhanced scheduling control information transmission, and is used to cover one of M subframes for enhanced scheduling control information transmission (in this embodiment, M subframes)
  • the second one is a subframe for non-coverage enhanced scheduling control information transmission, for covering one of the N subframes of the enhanced Paging data transmission (in this embodiment, the second of the N subframes, It is ensured that the number of offset subframes of the second of the M subframes and the subframe is still K (equal to
  • the subframes that overlap the first transmission of the N times of the enhanced paging data and the first transmission of the M times of the coverage enhanced scheduling control information are mutually offset.
  • the number is still K equals 2 subframes, but may not be limited thereto in practice; wherein N and M above are positive integers greater than 1 and are related to the maximum coverage enhancement level.
  • each module/unit in the foregoing embodiment may be implemented in the form of hardware or may be implemented by using a software function.
  • the form of the module is implemented. The invention is not limited to any specific form of combination of hardware and software.
  • the paging method, the device, the MME, the base station, and the user equipment provided by the embodiments of the present invention have the following beneficial effects: the paging problem of the user equipment in the idle state that cannot be implemented in the related art is solved. In turn, the effect of implementing paging for user equipment in an idle state is achieved.

Abstract

本发明提供了一种寻呼方法、装置、MME、基站及用户设备，其中，该方法包括：接收用户设备的服务基站发送的指示信息；当用户设备的状态为无线资源控制空闲状态时，将指示信息发送给用户设备的寻呼基站，其中，该指示信息用于寻呼基站寻呼上述用户设备，通过本发明，解决了相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题，进而达到了实现对处于空闲状态的用户设备的寻呼的效果。

Description

寻呼方法、装置、MME、基站及用户设备 技术领域
本发明涉及通信领域，具体而言，涉及一种寻呼方法、装置、MME、基站及用户设备。
背景技术
随着科技的发展，用户设备在我们的生活中起着越来越重要的作用，其中，机器类型通信(Machine Type Communication，简称MTC)或机器到机器(Machine to Machine，简称M2M)用户设备(User Equipment，简称UE)是现阶段物联网的主要应用形式。低功耗/低成本是其可大规模应用的重要保障。目前市场上部署的M2M设备主要基于全球移动通信(Global System of Mobile communication，简称GSM)系统。近年来，由于长期演进(Long Term Evolution，简称LTE)系统的频谱效率更高，以及越来越多的移动运营商已经确定LTE作为未来宽带无线通信系统的演进方向，所以基于LTE的M2M多种类数据业务也将更具吸引力。
用户设备(包括MTC UE)的成本主要来自两部分：基带处理部分和射频部分。为降低MTC UE的成本，减小UE上行和/或下行的传输带宽(包括基带和射频带宽)是降低MTC UE成本的一种非常有效的方式，例如，设置所有MTC UE上行和/或下行传输带宽只能为1.4MHz等窄带带宽(即使系统带宽远超过1.4MHz)。除了上述降带宽的方法以外，以下方式也可以用于进一步的降低MTC UE成本：单接收天线、减少的发射功率和减少的最大传输块大小(Transport Block Size，简称TBS)等。
由于一些MTC UE是被安装在住宅的地下室或者被铝合金窗或传统厚墙建筑结构所遮蔽的位置，与正常的MTC UE相比，这些UE在射频接口上会经历相当严重的穿透损耗，从而为确保上述UE正常的数据传输，需要增强上述MTC UE的覆盖。其中，增强的信道类型包括：物理上行或下行共享信道(Physical Uplink/Downlink Shared Channel，简称PUSCH/PDSCH)以及物理上行或下行控制信道(Physical Uplink/Downlink Control Channel，简称PUCCH/PDCCH)等。其中，物理下行共享信道PDSCH的覆盖增强包括系统信息块(System Information Block，简称SIB)数据、寻呼消息的覆盖增强以及单播业务数据的覆盖增强。为了积累更多的能量以改善覆盖，重复的方法通常被用于实现各种信道类型的传输增强。
现阶段，对于用于寻呼MTC UE的寻呼Paging消息，当UE处于射频资源控制(Radio Resource Control，简称RRC)连接Connected状态时，通过在RRC Connected 建立过程中MTC UE能力的上报，以及在RRC Connected建立之后网络的实时测量和/或MTC UE的反馈，eNB能够提供适配于MTC UE特性(是否受限于窄带传输带宽，是否工作于覆盖增强模式和/或实时的覆盖增强等级等)的Paging过程。然而，当MTC UE处于RRC空闲Idle状态时，考虑到eNB通常不会存储处于RRC Idle状态MTC UE的上下文，以及MTC UE的移动性和MTC UE不再发送任何上行信号，此时eNB无法实现基于MTC UE移动性的实时测量和/或反馈的接收，从而无法获取足够的所寻呼MTC UE的特性，最终导致eNB无法提供适配于MTC UE特性的Paging过程。目前为止，关于如何Paging处于RRC Idle状态下的MTC UE尚没有好的解决方案。
针对相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题，目前尚未提出有效的解决方案。
发明内容
本发明提供了一种寻呼方法、装置、MME、基站及用户设备，以至少解决相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题。
根据本发明的一个方面，提供了一种寻呼方法，包括：接收用户设备的服务基站发送的指示信息；当所述用户设备的状态为无线资源控制空闲状态时，将所述指示信息发送给所述用户设备的寻呼基站，其中，所述指示信息用于所述寻呼基站寻呼所述用户设备。
可选地，所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
可选地，在将所述指示信息发送给所述寻呼基站之前，还包括，接收所述服务基站发送的用于确定所述用户设备是否支持移动性的移动性功能指示信息，其中，当所述用户设备支持移动性时，所述寻呼基站为在追踪区域范围内的所有基站；当所述用户设备不支持移动性时，所述寻呼基站为所述用户设备的原服务基站。
可选地，当所述指示信息中包括覆盖增强功能指示信息，且所述用户设备支持覆盖增强时，在将所述指示信息发送给所述寻呼基站之前，还包括，接收由所述服务基站发送的所述用户设备的工作模式的指示信息，其中，所述工作模式为覆盖增强模式或非覆盖增强模式，并且，当所述用户设备工作于覆盖增强模式时，所述工作模式的指示信息中还包括所述用户设备的覆盖增强等级的指示信息。
可选地，当所述用户设备支持覆盖增强时，所述方法还包括：当所述用户设备的状态为无线资源控制空闲状态时，将所述用户设备的所述工作模式指示信息发送给所 述寻呼基站，并且，当所述用户设备工作于覆盖增强模式时，在向所述寻呼基站发送所述工作模式指示信息的同时，还将所述用户设备的覆盖增强等级的指示信息发送给所述寻呼基站，其中，所述寻呼基站为所述用户设备的原服务基站。
根据本发明的另一方面，提供了一种寻呼方法，包括：当用户设备的状态为无线资源控制空闲状态时，接收移动性管理实体MME发送的所述用户设备的指示信息；根据所述指示信息寻呼所述用户设备。
可选地，所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息、用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
可选地，接收所述MME发送的所述用户设备的指示信息包括：由寻呼基站接收所述MME发送的所述指示信息，其中，所述指示信息为所述用户设备的服务基站在获取所述指示信息之后发送给所述MME的，其中，所述获取所述指示信息包括接收所述用户设备上报的指示信息和根据所述用户设备接入所述服务基站的方式获取的指示信息。
可选地，当所述用户设备支持移动性时，所述寻呼基站为在追踪区域范围内的所有基站；当所述用户设备不支持移动性时，所述寻呼基站为所述用户设备的原服务基站。
可选地，当所述用户设备支持覆盖增强且所述寻呼基站为所述用户设备的原服务基站时，在所述寻呼基站接收所述MME发送的所述指示信息之后，还包括：由所述寻呼基站接收所述MME发送的用于确定所述用户设备的工作模式为覆盖增强模式还是非覆盖增强模式的工作模式的指示信息，并且，当所述用户设备工作于覆盖增强模式时，所述工作模式的指示信息中还包括所述用户设备的覆盖增强等级的指示信息，其中，所述工作模式的指示信息为由所述用户设备的服务基站发送给所述MME的；根据所述工作模式的指示信息寻呼所述用户设备。
可选地，所述用户设备的服务基站在如下时刻将所述工作模式的指示信息和所述用户设备的覆盖增强等级的指示信息发送给所述MME：在所述用户设备进入所述无线资源控制空闲状态后以及在所述服务基站删除所述用户设备的上下文之前。
可选地，当所述用户设备传输带宽受限时，根据所述用户设备的窄带功能指示信息寻呼所述用户设备包括：在确定窄带范围内传输用于寻呼所述用户设备的寻呼消息，其中，所述确定窄带范围为预定窄带范围，或所述确定窄带范围为由预定信令通知给所述用户设备的窄带范围。
可选地，当所述指示信息包括覆盖增强功能指示信息，且所述用户设备支持覆盖 增强时，根据所述指示信息寻呼所述用户设备包括以下之一：依次以非覆盖增强模式和覆盖增强模式寻呼所述用户设备，直到接收到所述用户设备的响应，其中，所述覆盖增强模式为使用最大覆盖增强等级的覆盖增强模式；始终以覆盖增强模式寻呼所述用户设备，其中，所述覆盖增强模式为使用最大覆盖增强等级的覆盖增强模式。
可选地，当始终以覆盖增强模式寻呼所述用户设备时，所述覆盖增强模式下的传输为所述非覆盖增强模式下的传输的重复；所述覆盖增强模式下的传输所占用的用于寻呼所述用户设备的子帧集合包含所述非覆盖增强模式下的传输所占用的用于寻呼所述用户设备的子帧。
可选地，所述覆盖增强模式下的传输为所述非覆盖增强模式下的传输的重复包括：所述覆盖增强模式下的寻呼数据的传输是所述非覆盖增强模式下的寻呼数据的传输的重复，所述覆盖增强模式下的调度控制信息的传输是所述非覆盖增强模式下的调度控制信息传输的重复，其中，所述调度控制信息是用于调度所述寻呼数据的控制信息；和/或，所述覆盖增强模式下的传输所占用的所述子帧集合包含所述非覆盖增强模式下的传输所占用的所述子帧包括：所述覆盖增强模式下的寻呼数据传输所占用的子帧集合包含所述非覆盖增强模式下的寻呼数据传输所占用的子帧，所述覆盖增强模式下的调度控制信息传输所占用的子帧集合包含所述非覆盖增强模式下的调度控制信息传输的所占用的子帧，其中，所述调度控制信息是用于调度所述寻呼数据的控制信息。
可选地，根据所述工作模式指示信息寻呼所述用户设备，包括：当所述工作模式为覆盖增强模式时，依次按照所述工作模式和非覆盖增强模式寻呼所述用户设备；当所述工作模式为非覆盖增强模式时，依次按照所述工作模式和覆盖增强模式寻呼所述用户设备。
可选地，在按照覆盖增强模式寻呼所述用户设备时，按照最大覆盖增强等级寻呼所述用户设备或依次按照所述用户设备工作模式指示信息指示的覆盖增强等级和所述覆盖增强等级之上的覆盖增强等级寻呼所述用户设备。
可选地，当所述指示信息包括覆盖增强功能指示信息，且所述用户设备不支持覆盖增强时，根据所述指示信息寻呼所述用户设备包括：按照非覆盖增强模式寻呼所述用户设备。
根据本发明的另一方面，提供了一种寻呼方法，包括：将用于对用户设备进行寻呼的指示信息发送给所述用户设备的服务基站，其中，所述指示信息用于所述服务基站将所述指示信息发送给移动性管理实体MME，以便寻呼基站在所述用户设备的状态为无线资源控制空闲状态时从所述MME中接收所述指示信息来对所述用户设备进行寻呼。
可选地，所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定所述用户设备是否支持移动性的移动性功能指示信息。
可选地，在将所述指示信息发送给所述服务基站之后，还包括：在所述用户设备的状态为无线资源控制空闲状态时，接收所述寻呼基站根据所述用户设备的窄带功能指示信息和所述覆盖增强功能指示信息中的至少之一发送的寻呼消息，其中，所述窄带功能指示信息用于确定所述用户设备是否传输带宽受限。
可选地，当所述用户设备支持移动性时，所述寻呼基站为所述用户设备当前驻留的基站；或者，当所述用户设备不支持移动性时，所述寻呼基站为所述用户设备的原服务基站。
可选地，所述用户设备当前驻留的基站为所述用户设备周围所有基站中具有最大的下行参考信号接收功率的基站或所述用户设备周围所有基站中具有最大的下行接收信号能量的基站。
可选地，接收所述寻呼基站根据所述窄带功能指示信息发送的寻呼消息包括：当所述用户设备传输带宽受限时，接收所述寻呼基站在确定窄带范围内发送的所述寻呼消息，其中，所述确定窄带范围为预定窄带范围或由预定信令通知的窄带范围。
可选地，接收所述寻呼基站根据所述覆盖增强功能指示信息发送的寻呼消息包括以下之一：当所述用户设备支持覆盖增强时，根据所述寻呼基站发送的下行参考信号确定所述用户设备的工作模式，其中，所述工作模式为覆盖增强模式或非覆盖增强模式，所述下行参考信号包括以下至少之一：同步信号、物理广播信道、小区专有参考信号；根据确定的所述工作模式接收所述寻呼基站依次以非覆盖增强模式和覆盖增强模式发送的寻呼消息；当所述用户设备支持覆盖增强时，接收所述寻呼基站按照覆盖增强模式发送的所述寻呼消息；当所述用户设备不支持覆盖增强时，接收所述寻呼基站按照非覆盖增强模式发送的所述寻呼消息。
可选地，接收所述寻呼基站按照所述覆盖增强模式发送的寻呼消息包括：接收所述寻呼基站按照所述用户设备支持的最大的覆盖增强等级发送的所述寻呼消息。
可选地，当所述寻呼基站为所述用户设备的原服务基站时，接收所述寻呼基站按照所述覆盖增强模式发送的寻呼消息包括：从所述用户设备当前覆盖增强等级开始，依次按照所述用户设备当前覆盖增强以及当前覆盖增强等级之上的覆盖增强等级接收所述寻呼基站依次按照工作模式指示信息指示的覆盖增强等级和所述覆盖增强等级之上的覆盖增强等级发送的寻呼消息，直到正确接收所述寻呼消息，其中，所述用户设备当前覆盖增强等级是通过对所述原服务基站的下行参考信号的测量获取的，所述下 行参考信号包括以下至少之一：同步信号、物理广播信道、小区专有参考信号。
根据本发明的另一方面，提供了一种寻呼装置，包括：第一接收模块，设置为接收用户设备的服务基站发送的指示信息；第一发送模块，设置为当所述用户设备的状态为无线资源控制空闲状态时，将所述指示信息发送给所述用户设备的寻呼基站，其中，所述指示信息用于所述寻呼基站寻呼所述用户设备。
可选地，所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
根据本发明的另一方面，提供了一种移动性管理实体MME，包括上述任一项所述的装置。
根据本发明的另一方面，提供了一种寻呼装置，包括：第二接收模块，设置为当用户设备的状态为无线资源控制空闲状态时，接收移动性管理实体MME发送的所述用户设备的指示信息；寻呼模块，设置为根据所述指示信息寻呼所述用户设备。
可选地，所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息、用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
根据本发明的另一方面，提供了一种基站，包括上述任一项所述的装置。
根据本发明的另一方面，提供了一种寻呼装置，包括：第二发送模块，设置为将用于对用户设备进行寻呼的指示信息发送给所述用户设备的服务基站，其中，所述指示信息用于所述服务基站将所述指示信息发送给移动性管理实体MME，以便所述寻呼基站在所述用户设备的状态为无线资源控制空闲状态时从所述MME中接收所述指示信息来对所述用户设备进行寻呼。
可选地，所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
可选地，所述装置还包括：第三接收模块，设置为在所述用户设备的状态为无线资源控制空闲状态时，接收所述寻呼基站根据所述用户设备的窄带功能指示信息和所述覆盖增强功能指示信息中的至少之一发送的寻呼消息，其中，所述窄带功能指示信息用于确定所述用户设备是否传输带宽受限。
根据本发明的另一方面，提供了一种用户设备，包括上述任一项所述的装置。
通过本发明，采用接收用户设备的服务基站发送的指示信息；当所述用户设备的状态为无线资源控制空闲状态时，将所述指示信息发送给所述用户设备的寻呼基站，其中，所述指示信息用于所述寻呼基站寻呼所述用户设备，解决了相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题，进而达到了实现对处于空闲状态的用户设备的寻呼的效果。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的第一种寻呼方法的流程图；
图2是根据本发明实施例的第二种寻呼方法的流程图；
图3是根据本发明实施例的第三种寻呼方法的流程图；
图4是根据本发明实施例的第一种寻呼装置的结构框图；
图5是根据本发明实施例的移动性管理实体MME的结构框图；
图6是根据本发明实施例的第二种寻呼装置的结构框图；
图7是根据本发明实施例的基站的结构框图；
图8是根据本发明实施例的第三种寻呼装置的结构框图；
图9是根据本发明实施例的第三种寻呼装置的优选结构框图；
图10是根据本发明实施例的用户设备的结构框图；
图11是根据本发明实施例一的寻呼处于RRC Idle状态的MTC UE的示意图；
图12是根据本发明实施例二的UE的服务eNB将UE覆盖增强相关指示信息上报给MME的示意图；
图13是根据本发明实施例二的MME将UE覆盖增强相关指示信息，通知给上述UE的原服务eNB的示意图；
图14是根据本发明实施例的覆盖增强传输为非覆盖增强传输的重复的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
在本实施例中提供了一种寻呼方法，图1是根据本发明实施例的第一种寻呼方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，接收用户设备的服务基站发送的指示信息；
步骤S104，当用户设备的状态为无线资源控制空闲状态时，将指示信息发送给用户设备的寻呼基站，其中，该指示信息用于寻呼基站寻呼上述用户设备。
通过上述步骤，在用户设备空闲时，可以利用预先接收的由用户设备的服务基站发送的指示信息寻呼该用户设备，从而实现了在用户设备处于空闲状态时，也能够获取足够的用户设备的特征，从而提高寻呼该用户设备的成功率，解决了相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题，进而达到了实现对处于空闲状态的用户设备的寻呼的效果。
上述指示信息的类型可以为多种，在一个可选的实施例中，上述指示信息可以包括以下至少之一：用于确定用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定用户设备是否传输带宽受限的窄带功能指示信息。
在一个可选的实施例中，在将上述指示信息发送给寻呼基站之前，还包括，接收上述用户设备的服务基站发送的用于确定该用户设备是否支持移动性的移动性功能指示信息，其中，当用户设备支持移动性时，寻呼基站为在追踪区域范围内的所有基站；当用户设备不支持移动性时，寻呼基站为用户设备的原服务基站。从而可以根据用户设备是否支持移动性来决定将指示信息发送给哪些基站。
当上述指示信息中包括覆盖增强功能指示信息，且用户设备支持覆盖增强时，在将指示信息发送给寻呼基站之前，还包括，接收由服务基站发送的用户设备的工作模式的指示信息，其中，该工作模式为覆盖增强模式或非覆盖增强模式，并且，当用户设备工作于覆盖增强模式时，工作模式的指示信息中还包括用户设备的覆盖增强等级的指示信息。
在一个可选的实施例中，当上述用户设备支持覆盖增强时，还包括：当用户设备的状态为无线资源控制空闲状态时，将用户设备的工作模式指示信息发送给寻呼基站，并且，当用户设备工作于覆盖增强模式时，在向寻呼基站发送工作模式指示信息的同时，还将该用户设备的覆盖增强等级的指示信息发送给寻呼基站，其中，该寻呼基站为用户设备的原服务基站。
图2是根据本发明实施例的第二种寻呼方法的流程图，如图2所示，该方法包括 如下步骤：
步骤S202，当用户设备的状态为无线资源控制空闲状态时，接收移动性管理实体MME发送的用户设备的指示信息；
步骤S204，根据上述指示信息寻呼用户设备。
通过上述步骤，在用户设备空闲时，根据MME发送的指示信息寻呼用户设备，从而实现了在用户设备处于空闲状态时，也能够获取足够的用户设备的特征，从而提高寻呼该用户设备的成功率，解决了相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题，进而达到了实现对处于空闲状态的用户设备的寻呼的效果。
上述指示信息的类型可以为多种，在一个可选的实施例中，上述指示信息可以包括以下至少之一：用于确定用户设备是否支持覆盖增强的覆盖增强功能指示信息、用于确定用户设备是否传输带宽受限的窄带功能指示信息。
在一个可选的实施例中，接收MME发送的用户设备的指示信息包括：由寻呼基站接收MME发送的指示信息，其中，该指示信息为用户设备的服务基站在获取指示信息之后发送给MME的，其中，该获取指示信息包括接收用户设备上报的指示信息和根据用户设备接入服务基站的方式获取的指示信息。
当上述用户设备支持移动性时，寻呼基站为在追踪区域范围内的所有基站；当用户设备不支持移动性时，寻呼基站为用户设备的原服务基站。
在一个可选的实施例中，当上述用户设备支持覆盖增强且寻呼基站为用户设备的原服务基站时，在寻呼基站接收MME发送的指示信息之后，还包括：由寻呼基站接收MME发送的用于确定用户设备的工作模式为覆盖增强模式还是非覆盖增强模式的工作模式的指示信息，并且，当该用户设备工作于覆盖增强模式时，该工作模式的指示信息中还包括用户设备的覆盖增强等级的指示信息，其中，该工作模式的指示信息为由用户设备的服务基站发送给MME的；根据工作模式的指示信息寻呼用户设备。
服务基站可以在特定的时刻将工作模式的指示信息和用户设备的覆盖增强等级的指示信息发送给MME，在一个可选的实施例中，上述用户设备的服务基站在如下时刻将工作模式的指示信息和用户设备的覆盖增强等级的指示信息发送给MME：在用户设备进入无线资源控制空闲状态后以及在服务基站删除用户设备的上下文之前。
在一个可选的实施例中，当用户设备传输带宽受限时，根据用户设备的窄带功能指示信息寻呼用户设备包括：在确定窄带范围内传输用于寻呼用户设备的寻呼消息，其中，该确定窄带范围为预定窄带范围，或者该确定窄带范围为由预定信令通知给用户设备的窄带范围。
当上述指示信息包括覆盖增强功能指示信息，且该用户设备支持覆盖增强时，根据指示信息寻呼用户设备包括以下之一：依次以非覆盖增强模式和覆盖增强模式寻呼用户设备，直到接收到该用户设备的响应，其中，覆盖增强模式为使用最大覆盖增强等级的覆盖增强模式；始终以覆盖增强模式寻呼用户设备，其中，该覆盖增强模式为使用最大覆盖增强等级的覆盖增强模式。
其中，当始终以覆盖增强模式寻呼用户设备时，该覆盖增强模式下的传输为非覆盖增强模式下的传输的重复；覆盖增强模式下的传输所占用的用于寻呼用户设备的子帧集合包含非覆盖增强模式下的传输所占用的用于寻呼用户设备的子帧。
在一个可选的实施例中，上述的覆盖增强模式下的传输为非覆盖增强模式下的传输的重复可以包括：覆盖增强模式下的寻呼数据的传输是非覆盖增强模式下的寻呼数据的传输的重复，覆盖增强模式下的调度控制信息的传输是非覆盖增强模式下的调度控制信息传输的重复，其中，该调度控制信息是用于调度寻呼数据的控制信息；和/或，覆盖增强模式下的传输所占用的子帧集合包含非覆盖增强模式下的传输所占用的子帧包括：覆盖增强模式下的寻呼数据传输所占用的子帧集合包含非覆盖增强模式下的寻呼数据传输所占用的子帧，覆盖增强模式下的调度控制信息传输所占用的子帧集合包含非覆盖增强模式下的调度控制信息传输的所占用的子帧，其中，该调度控制信息是用于调度寻呼数据的控制信息。
根据上述工作模式指示信息寻呼用户设备，包括：当上述工作模式为覆盖增强模式时，依次按照工作模式和非覆盖增强模式寻呼用户设备；当上述工作模式为非覆盖增强模式时，依次按照工作模式和覆盖增强模式寻呼用户设备。
其中，在按照覆盖增强模式寻呼用户设备时，按照最大覆盖增强等级寻呼用户设备或依次按照用户设备工作模式指示信息指示的覆盖增强等级和覆盖增强等级之上的覆盖增强等级寻呼用户设备。
当指示信息包括覆盖增强功能指示信息，且用户设备不支持覆盖增强时，根据指示信息寻呼用户设备包括：按照非覆盖增强模式寻呼用户设备。
图3是根据本发明实施例的第三种寻呼方法的流程图，如图3所示，该方法包括如下步骤：
步骤S302，将用于对用户设备进行寻呼的指示信息发送给用户设备的服务基站，其中，该指示信息用于服务基站将指示信息发送给移动性管理实体MME，以便寻呼基站在用户设备的状态为无线资源控制空闲状态时从MME中接收该指示信息来对用户设备进行寻呼。
通过上述步骤，在用户设备处于空闲状态之前将用于寻呼该用户设备的指示信息 发送给服务基站，进而由服务基站将其发送给MME，MME再将该寻呼消息发送给寻呼基站，从而使得寻呼基站在用户设备空闲时能够依据该指示信息对用户设备进行寻呼，从而实现了在用户设备处于空闲状态时，也能够获取足够的用户设备的特征，从而提高寻呼该用户设备的成功率，解决了相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题，进而达到了实现对处于空闲状态的用户设备的寻呼的效果。
上述指示信息可以包括以下至少之一：用于确定用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定用户设备是否支持移动性的移动性功能指示信息。
在一个可选的实施例中，在将指示信息发送给服务基站之后，还包括：在用户设备的状态为无线资源控制空闲状态时，接收寻呼基站根据用户设备的窄带功能指示信息和覆盖增强功能指示信息中的至少之一发送的寻呼消息，其中，该窄带功能指示信息用于确定用户设备是否传输带宽受限。
当用户设备支持移动性时，该寻呼基站为用户设备当前驻留的基站；或者，当用户设备不支持移动性时，该寻呼基站为用户设备的原服务基站。
其中，上述用户设备当前驻留的基站为用户设备周围所有基站中具有最大的下行参考信号接收功率的基站或用户设备周围所有基站中具有最大的下行接收信号能量的基站。
在一个可选的实施例中，接收寻呼基站根据窄带功能指示信息发送的寻呼消息包括：当用户设备传输带宽受限时，接收寻呼基站在确定窄带范围内发送的寻呼消息，其中，该确定窄带范围为预定窄带范围或由预定信令通知的窄带范围。
在一个可选的实施例中，接收寻呼基站根据覆盖增强功能指示信息发送的寻呼消息可以包括以下之一：当用户设备支持覆盖增强时，根据寻呼基站发送的下行参考信号确定用户设备的工作模式，其中，该工作模式为覆盖增强模式或非覆盖增强模式，下行参考信号包括以下至少之一：同步信号、物理广播信道、小区专有参考信号；根据确定的工作模式接收寻呼基站依次以非覆盖增强模式和覆盖增强模式发送的寻呼消息；当用户设备支持覆盖增强时，接收寻呼基站按照覆盖增强模式发送的寻呼消息；当用户设备不支持覆盖增强时，接收寻呼基站按照非覆盖增强模式发送的寻呼消息。
其中，接收寻呼基站按照覆盖增强模式发送的寻呼消息包括：接收寻呼基站按照用户设备支持的最大的覆盖增强等级发送的寻呼消息。
当寻呼基站为用户设备的原服务基站时，接收寻呼基站按照覆盖增强模式发送的寻呼消息包括：从用户设备当前覆盖增强等级开始，依次按照用户设备当前覆盖增强以及当前覆盖增强等级之上的覆盖增强等级接收寻呼基站依次按照工作模式指示信息指示的覆盖增强等级和覆盖增强等级之上的覆盖增强等级发送的寻呼消息，直到正确 接收寻呼消息，其中，该用户设备当前覆盖增强等级是通过对原服务基站的下行参考信号的测量获取的，该下行参考信号包括以下至少之一：同步信号、物理广播信道、小区专有参考信号。
在本实施例中还提供了一种寻呼装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图4是根据本发明实施例的第一种寻呼装置的结构框图，如图4所示，该装置包括第一接收模块42和第一发送模块44，下面对该装置进行说明。
第一接收模块42，设置为接收用户设备的服务基站发送的指示信息；第一发送模块44，连接至上述第一接收模块42，设置为当用户设备的状态为无线资源控制空闲状态时，将指示信息发送给用户设备的寻呼基站，其中，该指示信息用于寻呼基站寻呼用户设备。
其中，上述指示信息包括以下至少之一：用于确定用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定用户设备是否传输带宽受限的窄带功能指示信息。
图5是根据本发明实施例的移动性管理实体MME的结构框图，如图5所示，该MME52包括上述任一项的第一种寻呼装置54。
图6是根据本发明实施例的第二种寻呼装置的结构框图，如图6所示，该装置包括第二接收模块62和寻呼模块64，下面对该装置进行说明。
第二接收模块62，设置为当用户设备的状态为无线资源控制空闲状态时，接收移动性管理实体MME发送的用户设备的指示信息；寻呼模块64，连接至上述第二接收模块62，设置为根据指示信息寻呼用户设备。
其中，上述指示信息包括以下至少之一：用于确定用户设备是否支持覆盖增强的覆盖增强功能指示信息、用于确定用户设备是否传输带宽受限的窄带功能指示信息。
图7是根据本发明实施例的基站的结构框图，如图7所示，该基站72包括上述任一项的第二种寻呼装置74。
图8是根据本发明实施例的第三种寻呼装置的结构框图，如图8所示，该装置包括第二发送模块82，下面对该装置进行说明。
第二发送模块82，设置为将用于对用户设备进行寻呼的指示信息发送给用户设备的服务基站，其中，该指示信息用于服务基站将指示信息发送给移动性管理实体MME， 以便寻呼基站在用户设备的状态为无线资源控制空闲状态时从该MME中接收指示信息来对用户设备进行寻呼。
其中，上述指示信息可以包括以下至少之一：用于确定用户设备是否支持覆盖增强的覆盖增强功能指示信息；用于确定用户设备是否传输带宽受限的窄带功能指示信息。
图9是根据本发明实施例的第三种寻呼装置的优选结构框图，如图9所示，该装置除包括图8所示的所有模块外，还包括第三接收模块92，下面对该装置进行说明。
第三接收模块92，连接至上述第二发送模块82，设置为在用户设备的状态为无线资源控制空闲状态时，接收寻呼基站根据用户设备的窄带功能指示信息和覆盖增强功能指示信息中的至少之一发送的寻呼消息，其中，该窄带功能指示信息用于确定用户设备是否传输带宽受限。
图10是根据本发明实施例的用户设备的结构框图，如图10所示，该用户设备102包括上述任一项的第三种寻呼装置104。
下面以应用于MTC设备中的寻呼方法为例，对本发明进行说明。
在移动管理实体(Mobility Management Entity，简称MME)侧，当UE(即上述的用户设备)处于RRC Connected状态时，MME接收来自UE的服务eNB的UE窄带功能、覆盖增强和移动性功能的指示信息中的至少一个；
当UE处于RRC Idle状态时，MME通知UE的窄带功能和覆盖增强功能的指示信息中的至少一个给UE的寻呼eNB；其中，窄带功能、覆盖增强功能和移动性功能的指示信息分别用于确定UE是否传输带宽受限、是否支持覆盖增强以及是否支持移动性。
为控制MTC设备成本，某些MTC UE可能受限于窄带传输带宽；为实现扩展的覆盖目标，某些MTC UE必须支持覆盖增强功能；考虑到某些MTC设备在安装后可能不再移动，该类MTC UE支持移动性不是必要的。通过当UE处于RRC Connected状态时，使MME接收来自UE的服务eNB的UE窄带功能、覆盖增强和移动性功能的指示信息中的至少一个，以及当UE处于RRC Idle状态时，使MME通知UE窄带功能和覆盖增强功能的指示信息中的至少一个给UE的寻呼eNB，在一定程度上确保了当UE处于RRC Idle状态时，寻呼eNB也能够获取足够的UE特性，从而使eNB能够提供适配于MTC UE特性的Paging过程，最终提高了Paging过程的成功概率；此外，该方法同时避免了在eNB侧引入用于存储处于RRC Idle状态MTC UE上下文的大量的存储开销。
通知UE的窄带功能和覆盖增强功能的指示信息中的至少一个给UE的寻呼eNB包括：当UE支持移动性时，寻呼eNB为追踪区域(TrackingArea)范围内所有eNB；否则，寻呼eNB为UE的原服务eNB。
其中，TrackingArea是多个相邻eNB的集合，并且上述多个相邻eNB可以具有相同的或不同的追踪区域码(TrackingAreaCode)；当UE支持移动性时，UE可能位于上述多个eNB中的一个的覆盖范围内，但MME不确定具体是哪一个eNB，因此需要上述多个eNB同时寻呼UE。原服务eNB是UE在进入RRC Idle状态之前，为该UE提供服务的服务eNB；当UE不支持移动性时，UE将始终位于原服务eNB的覆盖范围内，因此只需要原服务eNB寻呼UE。
接收来自服务eNB的UE覆盖增强功能的指示信息的同时，还包括：
当UE支持覆盖增强时，接收来自服务eNB的UE的工作模式的指示信息，其中，该工作模式为覆盖增强或非覆盖增强模式；
以及，当UE工作于覆盖增强模式时，接收来自服务eNB的UE覆盖增强等级的指示信息。
当UE支持覆盖增强时，通过上述方法MME能够获知UE当前是工作在覆盖增强模式还是非覆盖增强模式，以及，如果UE工作在覆盖增强模式，它的具体覆盖增强等级是怎样的。
其中，在不同的覆盖增强等级下，不同的重复传输次数被应用；覆盖增强等级越高，需要的重复传输次数就越大。其中，在最大的覆盖增强等级下，最大的重复传输次数被应用。
在UE进入RRC Idle状态之后，以上信息(包括工作模式和/或覆盖增强等级)可以被MME利用以协助UE的原服务eNB提供更能够适配于MTC UE特性的寻呼Paging过程。
通知UE覆盖增强功能的指示信息给寻呼eNB的同时，还包括：
对于UE的原服务eNB，当UE支持覆盖增强时，通知UE工作模式的指示信息给eNB，其中，该工作模式为覆盖增强或非覆盖增强模式；以及，当UE工作于覆盖增强模式时，通知UE覆盖增强等级的指示信息给eNB。
当UE支持覆盖增强时，通过上述方法UE的原服务eNB能够获知UE历史是工作在覆盖增强模式还是非覆盖增强模式，以及，如果UE历史是工作在覆盖增强模式，它的具体历史的覆盖增强等级是怎样的。在UE进入RRC Idle状态后，以上信息(包括工作模式和/或覆盖增强等级)可以被UE的原服务eNB利用，以提供更能够适配于 MTC UE特性的寻呼(Paging)过程。
考虑到不同eNB覆盖范围的环境差异，在跨eNB进行移动的过程中，UE在一个eNB的历史的工作模式和/或覆盖增强等级指示信息对后续的其它eNB的参考意义不是很大或没有参考意义，所以只将UE工作模式和/或覆盖增强等级指示信息通知给UE的原服务eNB是可取的。
为解决相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题技术问题，本发明实施例中还提供一种寻呼方法，用于机器类型通信MTC设备，在基站eNB侧，当UE处于RRC Connected状态时，服务eNB将UE窄带功能的指示信息发送给MME，或者，接收来自UE的覆盖增强功能和移动性功能的指示信息中的至少一个并将其发送给MME，或者，接收来自UE的覆盖增强功能和移动性功能的指示信息中的至少一个并将其和UE窄带功能的指示信息发送给MME；
当UE处于RRC Idle状态时，寻呼eNB根据来自MME的UE窄带功能和覆盖增强功能的指示信息中的至少一个寻呼UE；其中，该窄带功能、覆盖增强功能和移动性功能的指示信息分别用于确定UE是否传输带宽受限、是否支持覆盖增强和是否支持移动性。
为控制MTC设备成本，某些MTC UE可能受限于窄带传输带宽；为实现扩展的覆盖目标，某些MTC UE必须支持覆盖增强功能；考虑到某些MTC设备在安装后可能不再移动，该类MTC UE支持移动性不是必要的。通过当UE处于RRC Connected状态时，使服务eNB将UE窄带功能、覆盖增强和移动性功能的指示信息中的至少一个发送给MME，以及当UE处于RRC Idle状态时，使寻呼eNB根据来自MME的UE窄带功能和覆盖增强功能的指示信息中的至少一个寻呼UE，在一定程度上确保了当UE处于RRC Idle状态时，寻呼eNB也能够获取足够的UE特性，从而使寻呼eNB能够提供适配于MTC UE特性的Paging过程，最终提高了Paging过程的成功概率；此外，该方法同时避免了在eNB侧引入用于存储处于RRC Idle状态MTC UE上下文的大量的存储开销。
需要说明的是，上述窄带功能不需要明确的指示信息，即服务eNB不需要接收来自UE的窄带功能的指示信息，因为eNB能够确定UE接入该eNB的方式，即是否是按照窄带接入规则或资源成功接入该eNB的窄带子系统的，如果是，则eNB能够确认UE受限于窄带传输带宽。
当UE传输带宽受限时，寻呼eNB按照窄带传输模式寻呼UE。其中，窄带传输模式包括：Paging消息在预定义的或通过eNB指示的窄带范围内传输。
当UE支持移动性功能时，寻呼eNB为TrackingArea范围内的所有eNB中的一 个；否则，寻呼eNB为UE的原服务eNB。
其中，TrackingArea是多个相邻eNB的集合，并且上述多个相邻eNB可以具有相同的或不同的追踪区域码(TrackingAreaCode)；当UE支持移动性时，UE可能位于上述多个eNB中的一个的覆盖范围内，但MME不确定具体是哪一个eNB，因此需要上述多个eNB同时寻呼UE。原服务eNB是UE在进入RRC Idle状态之前，为该UE提供服务的服务eNB；当UE不支持移动性时，UE将始终位于原服务eNB的覆盖范围内，因此只需要原服务eNB寻呼UE。
发送UE覆盖增强功能的指示信息给MME的同时，还包括：当UE支持覆盖增强时，发送UE工作模式指示信息给MME，其中，该工作模式为覆盖增强或非覆盖增强模式；以及，当UE工作于覆盖增强模式时，发送UE覆盖增强等级的指示信息给MME。
当UE支持覆盖增强时，通过上述方法MME能够获知UE当前是工作在覆盖增强模式还是非覆盖增强模式，以及，如果UE工作在覆盖增强模式，它的具体覆盖增强等级是怎样的。
其中，在不同的覆盖增强等级下，不同的重复传输次数被应用；覆盖增强等级越高，需要的重复传输次数就越大。其中，在最大的覆盖增强等级下，最大的重复传输次数被应用。
在UE进入RRC Idle状态之后，以上信息(包括工作模式和/或覆盖增强等级)可以被MME利用以协助UE的原服务eNB提供更能够适配于MTC UE特性的Paging过程。
服务eNB可以在以下时刻发送工作模式和覆盖增强等级的指示信息给MME：在UE进入RRC Idle状态后以及在服务eNB删除UE上下文之前。该方法确保了发送给MME存储的工作模式和覆盖增强等级信息是最新的且具有最小的控制开销(避免了工作模式和覆盖增强等级信息的反复上报)。
根据来自MME的UE覆盖增强功能指示信息寻呼UE，包括：当UE支持覆盖增强功能时，上述寻呼eNB依次以非覆盖增强和覆盖增强模式寻呼，直到接收到来自UE的上行数据；其中，寻呼eNB首先以非覆盖增强模式寻呼X次(X为大于等于1的正整数)，如果没有接收到来自UE的上行数据，再以覆盖增强模式寻呼；其中，当寻呼eNB以覆盖增强模式寻呼UE时始终是按照最大覆盖增强等级寻呼UE；该方法确保了寻呼UE的成功性，不论UE是工作在覆盖增强模式还是非覆盖增强模式，以及当UE工作在覆盖增强模式时，不论UE所处的覆盖增强等级。
或者，始终以覆盖增强模式并按照最大覆盖增强等级寻呼UE；覆盖增强传输模式 是非覆盖增强传输的重复，并且覆盖增强传输所占用的子帧集合包含非覆盖增强传输所占用的子帧。该方法确保了处于非覆盖增强模式的UE也能够正确接收以覆盖增强模式传输的Paging数据，最终确保了寻呼UE的成功性，不论UE是工作在覆盖增强模式还是非覆盖增强模式，以及当UE工作在覆盖增强模式时，不论UE处于怎样的覆盖增强等级。
根据来自MME的UE覆盖增强功能指示信息寻呼UE，包括：当寻呼eNB为UE原服务eNB且UE支持覆盖增强时，根据来自MME的UE工作模式和覆盖增强等级的指示信息寻呼UE，其中，该工作模式为覆盖增强或非覆盖增强模式。
当UE支持覆盖增强时，通过上述方法UE的原服务eNB能够获知UE历史是工作在覆盖增强模式还是非覆盖增强模式，以及，如果UE历史是工作在覆盖增强模式，它的具体历史的覆盖增强等级是怎样的。在UE进入RRC Idle状态之后，以上信息(包括工作模式和/或覆盖增强等级)可以被UE的原服务eNB利用，以提供更能够适配于MTC UE特性的寻呼(Paging)过程。
考虑到不同eNB覆盖范围的环境差异，在跨eNB进行移动的过程中，UE在一个eNB的历史的工作模式和/或覆盖增强等级指示信息对后续的其它eNB的参考意义不是很大或没有参考意义，所以只是原服务eNB接收来自MME的UE工作模式和/或覆盖增强等级指示信息是可取的。
UE原服务eNB依次按照UE工作模式指示信息所指示的工作模式和其它工作模式寻呼UE，直到接收到来自UE的上行数据。其中，UE原服务eNB首先以上述指示的工作模式寻呼Y次(Y为大于等于1的正整数)，如果没有接收到来自UE的上行数据，再以其它工作模式寻呼。考虑到UE很大可能是保持历史工作模式，通过优先按照历史工作模式寻呼UE在一定程度上避免了不必要的寻呼开销和延迟。
当以覆盖增强模式寻呼UE时，始终按照最大覆盖增强等级寻呼UE，或者，从覆盖增强等级指示信息所指示的覆盖增强等级开始，依次尝试所指示的覆盖增强等级以及在该覆盖增强等级之上的所有覆盖增强等级(例如，对于所指示的覆盖增强等级以及在该覆盖增强等级之上的所有覆盖增强等级中的任一个，UE原服务eNB按照该覆盖增强等级寻呼Z次，其中，Z为大于等于1的正整数，且满足Z×L＝Y，其中，L是大于等于所指示的覆盖增强等级的覆盖增强等级数，Y是以覆盖增强模式进行寻呼的次数)，直到接收到来自UE的上行数据。考虑到UE如果工作在覆盖增强模式，很大可能是保持历史的覆盖增强等级，通过优先按照历史的覆盖增强等级寻呼UE在一定程度上进一步避免了不必要的寻呼开销和延迟。
根据来自MME的UE覆盖增强功能指示信息寻呼UE，包括：当UE不支持覆盖 增强功能时，寻呼eNB始终以非覆盖增强模式寻呼UE。
为解决现有存在的无法实现对处于空闲状态的用户设备的寻呼问题，本发明实施例中还提供了一种方法，用于机器类型通信MTC设备，在终端侧：当UE处于RRC Connected状态时，将覆盖增强和移动性功能的指示信息中的至少一个发送给eNB；当UE处于RRC Idle状态时，按照窄带功能、覆盖增强和移动性功能中的至少一个的支持程度接收Paging消息；其中，该窄带功能、覆盖增强功能和移动性功能的指示信息分别用于确定UE是否传输带宽受限、是否支持覆盖增强以及是否支持移动性。
通过当UE处于RRC Connected状态时，使UE将覆盖增强和移动性功能的指示信息中的至少一个发送给eNB，确保了eNB能够及时地将上述指示信息和UE窄带功能的指示信息中的至少一个转发给MME，从而在一定程度上确保了当UE处于RRC Idle状态时，eNB也能够从MME获取足够的UE特性，从而使eNB能够提供适配于MTC UE特性的Paging过程，最终提高了Paging过程的成功概率。通过当UE处于RRC Idle状态时，使UE按照窄带功能、覆盖增强和移动性功能中的至少一个的支持程度接收Paging消息，确保了UE能够根据自身UE特性提供适配的Paging消息接收过程，最终提高了Paging接收的成功概率。
按照窄带功能的支持程度接收Paging消息，包括：当UE传输带宽受限时，UE按照窄带传输模式接收Paging消息。其中，上述窄带传输模式包括：Paging消息在预定义或通过eNB指示的窄带范围内接收。
按照覆盖增强和移动性功能的支持程度接收Paging消息，包括：当UE支持覆盖增强功能时，UE根据来自eNB的下行参考信号确定当前工作模式，并按照工作模式接收Paging消息，其中，工作模式为覆盖增强或非覆盖增强模式，下行参考信号包括：同步信号、物理广播信道、小区专有参考信号。例如，UE可以通过对小区专有的参考信号的测量获取参考信号接收功率(Reference Signal Receive Power，简称RSRP)，当上述RSRP低于某一门限时，UE按照覆盖增强模式接收Paging消息，否则，按照非覆盖增强模式接收Paging消息。该方法确保了UE能够根据实时的信道环境选择适合的工作模式。
当UE支持移动性时，eNB是UE当前驻留的eNB；否则，eNB为UE的原服务eNB。其中，当前驻留的eNB是UE周围所有eNB中具有最大的下行RSRP或下行接收信号能量的一个。当UE支持移动性时，UE驻留的eNB不是固定的，使UE接收来自当前驻留eNB的Paging消息，确保了Paging消息的接收性能；当UE不支持移动性时，UE驻留的eNB始终是UE的原服务eNB。
当UE按照覆盖增强模式接收Paging消息时，始终是按照最大的覆盖增强等级接 收。当eNB以覆盖增强模式并始终是按照最大的覆盖增强等级传输Paging消息时，上述方法提供了适配于传输方式的接收方式，最终确保了一次接收Paging消息的成功率。
当eNB为UE的原服务eNB，并按照覆盖增强模式接收Paging消息时，从当前覆盖增强等级开始，依次尝试当前覆盖增强等级以及在当前覆盖增强等级之上的所有覆盖增强等级，直到正确接收Paging消息。其中，对于当前覆盖增强等级以及在当前覆盖增强等级之上的所有覆盖增强等级中的任一个，UE按照该覆盖增强等级接收G次，直到正确接收Paging消息，其中，G为大于等于1的正整数。
在一个优选的实施例中，上述Z远大于G。
当eNB以覆盖增强模式并从历史覆盖增强等级开始，依次尝试在历史覆盖增强等级之上的所有覆盖增强等级传输Paging消息时，上述方法提供了适配于传输方式的接收方式，最终同时确保了一次接收Paging消息的成功率、寻呼控制开销以及寻呼延迟。其中，当前覆盖增强等级是基于对来自UE原服务eNB的下行参考信号的测量获取到的；例如，UE可以通过对小区专有的参考信号的测量获取参考信号接收功率RSRP，当上述RSRP位于第一取值区间时，当前覆盖增强等级为第一覆盖增强等级，位于第二取值区间时，当前覆盖增强等级为第二覆盖增强等级，以此类推。
按照覆盖增强和移动性功能的支持程度接收Paging消息，包括：当UE不支持覆盖增强功能时，UE始终以非覆盖增强模式接收Paging消息。
在上述各实施例中，通过当UE处于RRC Connected状态时，使MME接收来自eNB的UE窄带功能、覆盖增强和移动性功能的指示信息中的至少一个，以及，当UE处于RRC Idle状态时，使MME通知UE窄带功能和覆盖增强功能的指示信息中的至少一个给eNB，在一定程度上确保了当UE处于RRC Idle状态时eNB也能获取足够UE特征，最终提高了Paging过程的成功概率。
需要说明的是，在实际实现过程中，可能不存在直接或明确的窄带、覆盖增强和/或移动性功能的指示信息，此时，上述指示信息是通过UE类型的指示信息所间接指示；例如，现有的Rel-12低成本(Low Cost)UE类型(即Category 0)意味着不支持窄带和覆盖增强功能，而可能在未来引入的Rel-13低复杂度(Low Complexity)UE类型意味着支持窄带功能，以及，覆盖增强Rel-13低复杂度UE类型意味着同时支持窄带和覆盖增强功能。
下面结合具体的实施例对本发明进行说明：
实施例一
图11是根据本发明实施例一的寻呼处于RRC Idle状态的MTC UE的示意图。
如图11所示，该寻呼方法包括如下步骤：
步骤S1102，当UE处于RRC Connected状态时，该UE将覆盖增强和移动性功能的指示信息上报给服务eNB，以向服务eNB指示其是否支持覆盖增强和移动性。
步骤S1104，在服务eNB接收到来自UE的上述覆盖增强和移动性功能的指示信息后，该服务eNB将上述覆盖增强和移动性功能的指示信息以及窄带功能的指示信息转发给MME。
其中，上述窄带功能、覆盖增强功能和移动性功能的指示信息分别用于确定UE是否传输带宽受限、是否支持覆盖增强以及是否支持移动性；以及，窄带功能不需要明确的指示信息，即服务eNB不需要接收来自UE的窄带功能的指示信息，因为eNB能够确定UE是否是按照窄带接入规则或资源成功接入窄带子系统的，如果是，则eNB能够确认UE受限于窄带传输带宽。
步骤S1106，当UE处于RRC Idle状态时，MME将上述UE的窄带和覆盖增强功能的指示信息再通知给寻呼eNB，以向寻呼eNB指示该UE是否支持覆盖增强和移动性。
步骤S1108，在寻呼eNB接收到来自MME的上述窄带和覆盖增强功能的指示信息后，该寻呼eNB根据上述UE窄带和覆盖增强功能的指示信息寻呼上述UE。其中，当上述UE支持移动性时，上述寻呼eNB为追踪区域(TrackingArea)范围内的所有eNB中的一个；否则，上述寻呼eNB仅为唯一的上述UE的原服务eNB。
当上述UE传输带宽受限时，上述寻呼eNB在预定义或通过eNB指示的确定窄带范围内寻呼该UE(传输Paging消息)。
当上述UE支持覆盖增强时，设想所有寻呼eNB采用相同操作(不区分该UE的原服务eNB和除上述原服务eNB以外的其它eNB)，具体是上述寻呼eNB依次以非覆盖增强和覆盖增强模式寻呼，直到接收到来自上述UE的上行数据；或者，始终以覆盖增强模式寻呼；其中，当上述寻呼eNB以覆盖增强模式寻呼上述UE时始终是按照最大覆盖增强等级寻呼；以及，当上述寻呼eNB始终是以覆盖增强模式寻呼时，覆盖增强传输模式是非覆盖增强传输的重复。当上述UE不支持覆盖增强时，具体是上述寻呼eNB始终以非覆盖增强模式寻呼。
实施例二
图12是根据本发明实施例二的UE的服务eNB将UE覆盖增强相关指示信息上报给MME的示意图；
如图12所示，当UE处于RRC Connected状态时，服务eNB将来自UE覆盖增强功能的指示信息转发给MME之后，确定上述UE是否支持覆盖增强；如果是，则服务eNB继续确定上述UE是否工作在覆盖增强模式。如果上述UE是工作在覆盖增强模式，则服务eNB在后续的确定时刻传输上述UE的工作模式(具体为覆盖增强模式)的指示信息以及相应覆盖增强等级的指示信息给MME；否则，服务eNB在后续的确定时刻仅传输上述UE的工作模式(具体为非覆盖增强模式)的指示信息给MME。其中，覆盖增强功能的指示信息用于确定上述UE是否支持覆盖增强；工作模式为覆盖增强或非覆盖增强模式；上述确定时刻是在上述UE进入RRC Idle状态后以及在服务eNB删除UE上下文之前。
图13是根据本发明实施例二的MME将UE覆盖增强相关指示信息，通知给上述UE的原服务eNB的示意图；如图13所示，当UE处于RRC Idle状态时，在MME将上述UE覆盖增强功能的指示信息通知给上述UE的原服务eNB之后，确定上述UE是否支持覆盖增强；如果是，则MME继续确定上述UE先前是否工作在覆盖增强模式。如果上述UE先前是工作在覆盖增强模式，则MME继续传输上述UE的工作模式(具体为覆盖增强模式)的指示信息以及相应覆盖增强等级的指示信息给上述UE的原服务eNB；否则，MME只是继续传输上述UE的工作模式(具体为非覆盖增强模式)的指示信息给上述UE的原服务eNB。其中，覆盖增强功能的指示信息用于确定上述UE是否支持覆盖增强；工作模式为覆盖增强或非覆盖增强模式。
当上述UE的原服务eNB接收到来自MME的指示上述UE工作在非覆盖增强模式的指示信息时，依次以非覆盖增强工作模式和覆盖增强工作模式寻呼上述UE，直到接收到来自上述UE的上行数据；其中，上述以覆盖增强工作模式寻呼始终是按照最大覆盖增强等级寻呼。当上述UE的原服务eNB接收到来自MME的指示上述UE工作在覆盖增强模式以及相应的覆盖增强等级的指示信息时，依次以覆盖增强工作模式和非覆盖增强工作模式寻呼上述UE，直到接收到来自上述UE的上行数据；其中，上述以覆盖增强工作模式寻呼是从上述覆盖增强等级指示信息所指示的覆盖增强等级开始，依次尝试在上述覆盖增强等级之上的所有覆盖增强等级，直到最大的覆盖增强等级或确认接收到来自UE的上行数据为止。
实施例三
图14是根据本发明实施例的覆盖增强传输为非覆盖增强传输的重复的示意图，其 中，图14中，(a)、(b)、(c)分别是根据本发明实施例的覆盖增强传输为非覆盖增强传输的重复的示意图一、二、三。
如附图14中(a)所示，对于非覆盖增强传输，没有任何调度控制信息，也称为无控制传输；在这种情况下，覆盖增强传输是非覆盖增强传输的重复的效果是：覆盖增强Paging数据传输只是非覆盖增强Paging数据传输的N次重复，并且用于覆盖增强Paging数据传输的N个子帧中的一个(在本实施例中为N个子帧中的第5个)是用于非覆盖增强传输的子帧。
如附图14中(b)所示，对于非覆盖增强传输，Paging数据与相应的调度控制信息存在于相同子帧，也称为同子帧调度；在这种情况下，覆盖增强传输是非覆盖增强传输的重复的效果是：覆盖增强Paging数据传输是非覆盖增强Paging数据传输的N次重复，以及，覆盖增强的调度控制信息的传输是非覆盖增强的调度控制信息的传输的M次重复，并且用于覆盖增强的调度控制信息传输的M个子帧中的一个(在本实施例中为M个子帧中的第2个)是用于非覆盖增强的调度控制信息传输的子帧，用于覆盖增强Paging数据传输的N个子帧中的一个(在本实施例中为N个子帧中的第2个)是用于非覆盖增强Paging数据传输的子帧。
如附图14中(c)所示，对于非覆盖增强传输，Paging数据与相应的调度控制信息存在于不同子帧(在本实施例中Paging数据与相应调度控制信息偏移的子帧数K等于2个子帧)，也称为跨子帧调度；在这种情况下，覆盖增强传输是非覆盖增强传输的重复的效果是：覆盖增强Paging数据传输是非覆盖增强Paging数据传输的N次重复，以及，覆盖增强的调度控制信息传输是非覆盖增强的调度控制信息传输的M次重复，并且用于覆盖增强的调度控制信息传输的M个子帧中的一个(在本实施例中为M个子帧中的第2个)是用于非覆盖增强的调度控制信息传输的子帧，用于覆盖增强Paging数据传输的N个子帧中的一个(在本实施例中为N个子帧中的第2个，以确保上述M个子帧中的第2个与该子帧的偏移子帧数仍然为K(等于2))是用于非覆盖增强Paging数据传输的子帧。
需要说明的是，在本实施例的附图14中(c)中，覆盖增强Paging数据的N次重复的首次传输与覆盖增强的调度控制信息的M次重复的首次传输相互偏移的子帧数仍然为K等于2个子帧，但实际中可以不局限于此；其中，上述N和M是大于1的正整数且与最大覆盖增强等级有关。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现，相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，也可以采用软件功能 模块的形式实现。本发明不限制于任何特定形式的硬件和软件的结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种寻呼方法、装置、MME、基站及用户设备具有以下有益效果：解决了相关技术中存在的无法实现对处于空闲状态的用户设备的寻呼问题，进而达到了实现对处于空闲状态的用户设备的寻呼的效果。

Claims (37)

  1. 一种寻呼方法，包括：
    接收用户设备的服务基站发送的指示信息；
    当所述用户设备的状态为无线资源控制空闲状态时，将所述指示信息发送给所述用户设备的寻呼基站，其中，所述指示信息用于所述寻呼基站寻呼所述用户设备。
  2. 根据权利要求1所述的方法，其中，所述指示信息包括以下至少之一：
    用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；
    用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
  3. 根据权利要求2所述的方法，其中，在将所述指示信息发送给所述寻呼基站之前，还包括，接收所述服务基站发送的用于确定所述用户设备是否支持移动性的移动性功能指示信息，其中，
    当所述用户设备支持移动性时，所述寻呼基站为在追踪区域范围内的所有基站；
    当所述用户设备不支持移动性时，所述寻呼基站为所述用户设备的原服务基站。
  4. 根据权利要求2所述的方法，其中，当所述指示信息中包括覆盖增强功能指示信息，且所述用户设备支持覆盖增强时，在将所述指示信息发送给所述寻呼基站之前，还包括，接收由所述服务基站发送的所述用户设备的工作模式的指示信息，其中，所述工作模式为覆盖增强模式或非覆盖增强模式，并且，当所述用户设备工作于覆盖增强模式时，所述工作模式的指示信息中还包括所述用户设备的覆盖增强等级的指示信息。
  5. 根据权利要求4所述的方法，其中，当所述用户设备支持覆盖增强时，所述方法还包括：
    当所述用户设备的状态为无线资源控制空闲状态时，将所述用户设备的所述工作模式指示信息发送给所述寻呼基站，并且，当所述用户设备工作于覆盖增强模式时，在向所述寻呼基站发送所述工作模式指示信息的同时，还将所述用户设备的覆盖增强等级的指示信息发送给所述寻呼基站，其中，所述寻呼基站为所述用户设备的原服务基站。
  6. 一种寻呼方法，包括：
    当用户设备的状态为无线资源控制空闲状态时，接收移动性管理实体MME发送的所述用户设备的指示信息；
    根据所述指示信息寻呼所述用户设备。
  7. 根据权利要求6所述的方法，其中，
    所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息、用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
  8. 根据权利要求7所述的方法，其中，接收所述MME发送的所述用户设备的指示信息包括：由寻呼基站接收所述MME发送的所述指示信息，其中，所述指示信息为所述用户设备的服务基站在获取所述指示信息之后发送给所述MME的，其中，获取所述指示信息包括接收所述用户设备上报的指示信息和根据所述用户设备接入所述服务基站的方式获取的指示信息。
  9. 根据权利要求8所述的方法，其中，
    当所述用户设备支持移动性时，所述寻呼基站为在追踪区域范围内的所有基站；
    当所述用户设备不支持移动性时，所述寻呼基站为所述用户设备的原服务基站。
  10. 根据权利要求8所述的方法，其中，当所述用户设备支持覆盖增强且所述寻呼基站为所述用户设备的原服务基站时，在所述寻呼基站接收所述MME发送的所述指示信息之后，还包括：
    由所述寻呼基站接收所述MME发送的用于确定所述用户设备的工作模式为覆盖增强模式还是非覆盖增强模式的工作模式的指示信息，并且，当所述用户设备工作于覆盖增强模式时，所述工作模式的指示信息中还包括所述用户设备的覆盖增强等级的指示信息，其中，所述工作模式的指示信息为由所述用户设备的服务基站发送给所述MME的；
    根据所述工作模式的指示信息寻呼所述用户设备。
  11. 根据权利要求10所述的方法，其中，所述用户设备的服务基站在如下时刻将所述工作模式的指示信息和所述用户设备的覆盖增强等级的指示信息发送给所述MME：
    在所述用户设备进入所述无线资源控制空闲状态后以及在所述服务基站删除 所述用户设备的上下文之前。
  12. 根据权利要求7所述的方法，其中，当所述用户设备传输带宽受限时，根据所述用户设备的窄带功能指示信息寻呼所述用户设备包括：
    在确定窄带范围内传输用于寻呼所述用户设备的寻呼消息，其中，所述确定窄带范围为预定窄带范围，或所述确定窄带范围为由预定信令通知给所述用户设备的窄带范围。
  13. 根据权利要求7所述的方法，其中，当所述指示信息包括覆盖增强功能指示信息，且所述用户设备支持覆盖增强时，根据所述指示信息寻呼所述用户设备包括以下之一：
    依次以非覆盖增强模式和覆盖增强模式寻呼所述用户设备，直到接收到所述用户设备的响应，其中，所述覆盖增强模式为使用最大覆盖增强等级的覆盖增强模式；
    始终以覆盖增强模式寻呼所述用户设备，其中，所述覆盖增强模式为使用最大覆盖增强等级的覆盖增强模式。
  14. 根据权利要求13所述的方法，其中，包括以下之一：
    当始终以覆盖增强模式寻呼所述用户设备时，所述覆盖增强模式下的传输为所述非覆盖增强模式下的传输的重复；
    所述覆盖增强模式下的传输所占用的用于寻呼所述用户设备的子帧集合包含所述非覆盖增强模式下的传输所占用的用于寻呼所述用户设备的子帧。
  15. 根据权利要求14所述的方法，其中，
    所述覆盖增强模式下的传输为所述非覆盖增强模式下的传输的重复包括：所述覆盖增强模式下的寻呼数据的传输是所述非覆盖增强模式下的寻呼数据的传输的重复，所述覆盖增强模式下的调度控制信息的传输是所述非覆盖增强模式下的调度控制信息传输的重复，其中，所述调度控制信息是用于调度所述寻呼数据的控制信息；和/或，
    所述覆盖增强模式下的传输所占用的所述子帧集合包含所述非覆盖增强模式下的传输所占用的所述子帧包括：所述覆盖增强模式下的寻呼数据传输所占用的子帧集合包含所述非覆盖增强模式下的寻呼数据传输所占用的子帧，所述覆盖增强模式下的调度控制信息传输所占用的子帧集合包含所述非覆盖增强模式下的调度控制信息传输的所占用的子帧，其中，所述调度控制信息是用于调度所述寻呼 数据的控制信息。
  16. 根据权利要求10所述的方法，其中，根据所述工作模式指示信息寻呼所述用户设备，包括：
    当所述工作模式为覆盖增强模式时，依次按照所述工作模式和非覆盖增强模式寻呼所述用户设备；
    当所述工作模式为非覆盖增强模式时，依次按照所述工作模式和覆盖增强模式寻呼所述用户设备。
  17. 根据权利要求16所述的方法，其中，在按照覆盖增强模式寻呼所述用户设备时，按照最大覆盖增强等级寻呼所述用户设备或依次按照所述用户设备工作模式指示信息指示的覆盖增强等级和所述覆盖增强等级之上的覆盖增强等级寻呼所述用户设备。
  18. 根据权利要求7所述的方法，其中，当所述指示信息包括覆盖增强功能指示信息，且所述用户设备不支持覆盖增强时，根据所述指示信息寻呼所述用户设备包括：按照非覆盖增强模式寻呼所述用户设备。
  19. 一种寻呼方法，包括：
    将用于对用户设备进行寻呼的指示信息发送给所述用户设备的服务基站，其中，所述指示信息用于所述服务基站将所述指示信息发送给移动性管理实体MME，以便寻呼基站在所述用户设备的状态为无线资源控制空闲状态时从所述MME中接收所述指示信息来对所述用户设备进行寻呼。
  20. 根据权利要求19所述的方法，其中，所述指示信息包括以下至少之一：
    用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；
    用于确定所述用户设备是否支持移动性的移动性功能指示信息。
  21. 根据权利要求20所述的方法，其中，在将所述指示信息发送给所述服务基站之后，还包括：
    在所述用户设备的状态为无线资源控制空闲状态时，接收所述寻呼基站根据所述用户设备的窄带功能指示信息和所述覆盖增强功能指示信息中的至少之一发送的寻呼消息，其中，所述窄带功能指示信息用于确定所述用户设备是否传输带宽受限。
  22. 根据权利要求21所述的方法，其中，当所述用户设备支持移动性时，所述寻呼基 站为所述用户设备当前驻留的基站；或者，当所述用户设备不支持移动性时，所述寻呼基站为所述用户设备的原服务基站。
  23. 根据权利要求22所述的方法，其中，所述用户设备当前驻留的基站为所述用户设备周围所有基站中具有最大的下行参考信号接收功率的基站或所述用户设备周围所有基站中具有最大的下行接收信号能量的基站。
  24. 根据权利要求21所述的方法，其中，接收所述寻呼基站根据所述窄带功能指示信息发送的寻呼消息包括：
    当所述用户设备传输带宽受限时，接收所述寻呼基站在确定窄带范围内发送的所述寻呼消息，其中，所述确定窄带范围为预定窄带范围或由预定信令通知的窄带范围。
  25. 根据权利要求21所述的方法，其中，接收所述寻呼基站根据所述覆盖增强功能指示信息发送的寻呼消息包括以下之一：
    当所述用户设备支持覆盖增强时，根据所述寻呼基站发送的下行参考信号确定所述用户设备的工作模式，其中，所述工作模式为覆盖增强模式或非覆盖增强模式，所述下行参考信号包括以下至少之一：同步信号、物理广播信道、小区专有参考信号；根据确定的所述工作模式接收所述寻呼基站依次以非覆盖增强模式和覆盖增强模式发送的寻呼消息；
    当所述用户设备支持覆盖增强时，接收所述寻呼基站按照覆盖增强模式发送的所述寻呼消息；
    当所述用户设备不支持覆盖增强时，接收所述寻呼基站按照非覆盖增强模式发送的所述寻呼消息。
  26. 根据权利要求25所述的方法，其中，接收所述寻呼基站按照所述覆盖增强模式发送的寻呼消息包括：
    接收所述寻呼基站按照所述用户设备支持的最大的覆盖增强等级发送的所述寻呼消息。
  27. 根据权利要求25所述的方法，其中，当所述寻呼基站为所述用户设备的原服务基站时，接收所述寻呼基站按照所述覆盖增强模式发送的寻呼消息包括：
    从所述用户设备当前覆盖增强等级开始，依次按照所述用户设备当前覆盖增强以及当前覆盖增强等级之上的覆盖增强等级接收所述寻呼基站依次按照工作模式指示信息指示的覆盖增强等级和所述覆盖增强等级之上的覆盖增强等级发送的 寻呼消息，直到正确接收所述寻呼消息，其中，所述用户设备当前覆盖增强等级是通过对所述原服务基站的下行参考信号的测量获取的，所述下行参考信号包括以下至少之一：同步信号、物理广播信道、小区专有参考信号。
  28. 一种寻呼装置，包括：
    第一接收模块，设置为接收用户设备的服务基站发送的指示信息；
    第一发送模块，设置为当所述用户设备的状态为无线资源控制空闲状态时，将所述指示信息发送给所述用户设备的寻呼基站，其中，所述指示信息用于所述寻呼基站寻呼所述用户设备。
  29. 根据权利要求28所述的装置，其中，所述指示信息包括以下至少之一：
    用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；
    用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
  30. 一种移动性管理实体MME，包括权利要求28至29中任一项所述的装置。
  31. 一种寻呼装置，包括：
    第二接收模块，设置为当用户设备的状态为无线资源控制空闲状态时，接收移动性管理实体MME发送的所述用户设备的指示信息；
    寻呼模块，设置为根据所述指示信息寻呼所述用户设备。
  32. 根据权利要求31所述的装置，其中，
    所述指示信息包括以下至少之一：用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息、用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
  33. 一种基站，包括权利要求31至32中任一项所述的装置。
  34. 一种寻呼装置，包括：
    第二发送模块，设置为将用于对用户设备进行寻呼的指示信息发送给所述用户设备的服务基站，其中，所述指示信息用于所述服务基站将所述指示信息发送给移动性管理实体MME，以便所述寻呼基站在所述用户设备的状态为无线资源控制空闲状态时从所述MME中接收所述指示信息来对所述用户设备进行寻呼。
  35. 根据权利要求34所述的装置，其中，所述指示信息包括以下至少之一：
    用于确定所述用户设备是否支持覆盖增强的覆盖增强功能指示信息；
    用于确定所述用户设备是否传输带宽受限的窄带功能指示信息。
  36. 根据权利要求35所述的装置，其中，还包括：
    第三接收模块，设置为在所述用户设备的状态为无线资源控制空闲状态时，接收所述寻呼基站根据所述用户设备的窄带功能指示信息和所述覆盖增强功能指示信息中的至少之一发送的寻呼消息，其中，所述窄带功能指示信息用于确定所述用户设备是否传输带宽受限。
  37. 一种用户设备，包括权利要求34至36中任一项所述的装置。
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