WO2018028576A1 - 一种寻呼方法、装置及系统、用户设备 - Google Patents

一种寻呼方法、装置及系统、用户设备 Download PDF

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Publication number
WO2018028576A1
WO2018028576A1 PCT/CN2017/096466 CN2017096466W WO2018028576A1 WO 2018028576 A1 WO2018028576 A1 WO 2018028576A1 CN 2017096466 W CN2017096466 W CN 2017096466W WO 2018028576 A1 WO2018028576 A1 WO 2018028576A1
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WIPO (PCT)
Prior art keywords
carrier
paging
anchor carrier
anchor
random access
Prior art date
Application number
PCT/CN2017/096466
Other languages
English (en)
French (fr)
Inventor
刘旭
戴博
沙秀斌
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610861921.6A external-priority patent/CN108307378B/zh
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
Priority to EP17838706.4A priority Critical patent/EP3499930B1/en
Priority to EP21202958.1A priority patent/EP3965486A1/en
Publication of WO2018028576A1 publication Critical patent/WO2018028576A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/14—Mobility data transfer between corresponding nodes
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/082—Load balancing or load distribution among bearers or channels
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a paging method, apparatus and system, and user equipment.
  • MTC Machine Type Communication
  • NB-IoT Narrowband-Internet of Things
  • Multi-Carrier multi-carrier
  • 3GPP R13 phase a cell consists of multiple frequency points, and each frequency point/carrier occupies a narrow band of 200 khz, but only one frequency band carries a narrow-band master.
  • NB-PSS/SSS NarrowBand-Primary Synchronization Signal/Secondary Synchronization Signal
  • NB-PBCH Narrow Band-Physical Broadcast Channel
  • SIB System Information Block
  • the frequency of the frequency is called Anchor-Carrier or Anchor-PRB (Anchor-Physical Resource Block).
  • Non Anchor-Carrier Non Anchor-Carrier
  • Non-Anchor PRB Non Anchor-Physical Resource Block
  • These non-anchor carriers do not carry NB-PSS/SSS, NB-PBCH, and SIB, and only carry data service-related channels, such as narrowband physical downlink control channel (NB-PDCCH, NarrowBand-Physical Downlink Control Channel), narrowband physical downlink A shared channel (NB-PDSCH, NarrowBand-Physical Downlink Shared Channel), a narrowband physical uplink shared channel (NB-PUSCH, NarrowBand-Physical Uplink Shared Channel).
  • NB-PDCCH narrowband physical downlink control channel
  • NB-PDSCH narrowband physical downlink A shared channel
  • NB-PUSCH narrowband physical uplink shared channel
  • NarrowBand-Physical Uplink Shared Channel narrowband physical uplink shared channel
  • the technical problem to be solved by the present disclosure is to provide a paging method, a device and a system, and a user equipment, which are used to solve the problem that a non-anchor carrier in a multi-carrier cell in the prior art cannot receive a paging message, and the paging capacity is limited. , the problem of load imbalance.
  • the present disclosure provides a paging method, including: receiving a paging message from a base station on a first non-anchor carrier of a multi-carrier cell, where the paging message carries downlink data arrival Instructing information and/or system message change indication information; initiating random access according to the paging message, and/or receiving a changed system message; wherein the multi-carrier cell includes an anchor carrier and a plurality of non-anchor carriers .
  • the paging message carries the downlink data arrival indication information; the initiating a random access according to the paging message, and/or receiving a system change message includes: determining whether the first non-anchor carrier is Corresponding random access resources are configured; in the case that the first non-anchor carrier is configured with the random access resource, random access is initiated from the first non-anchor carrier; If the anchor carrier is not configured with the random access resource, the jump to other non-anchor carriers or the anchor carrier initiates random access.
  • jumping to another non-anchor carrier or the anchor carrier to initiate random access includes: if the first non-anchor The random access resource is configured on the non-anchor carrier other than the point carrier, and jumps to one of the non-anchor carriers configured with the random access resource to initiate random access; if the first non- The random access resource is not configured on other non-anchor carriers other than the anchor carrier, and jumps to the anchor carrier to initiate random access.
  • the paging message carries the system message change indication information; the system information that initiates random access according to the paging message, and/or receives the change includes: changing indication information according to the system message, Jumping from the first non-anchor carrier to the anchor carrier; receiving a changed system message on the anchor carrier.
  • the method before receiving the paging message from the base station on the first non-anchor carrier of the multi-carrier cell, the method further includes: selecting to use the anchor carrier or the non-anchor carrier to receive from the paging carrier selection policy. a paging message of the base station.
  • the paging carrier selection policy includes: modulo the paging cycle sequence number to N in a plurality of paging cycles included in a period of time, and the same paging cycle using the same paging carrier is obtained.
  • N is an integer greater than one and less than the number of the paging cycle.
  • the paging carrier selection policy includes performing time division multiplexing on the anchor carrier and each of the non-anchor carriers according to a time domain radio frame configured by the base station.
  • the paging carrier selection policy includes: selecting a paging carrier based on a mapping relationship between a signal coverage level configured by the base station and a paging carrier.
  • the method further includes: camping on an anchor carrier or a non-anchor carrier of the multi-carrier cell when in an RRC (radio resource control) idle state.
  • RRC radio resource control
  • the method further includes: when camping on the non-anchor carrier, acquiring an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency point, so as to be in the non-anchor The same frequency measurement and inter-frequency measurement are performed on the point carrier for cell reselection.
  • the obtaining the same-frequency cell list and the inter-frequency cell list based on the non-anchor carrier frequency point includes: receiving a first system message, where the first system message includes a carrier frequency based on the anchor point a co-frequency cell list and an inter-frequency cell list; converting the co-frequency cell list and the inter-frequency cell list based on the anchor carrier frequency point into an intra-frequency cell list and an inter-frequency cell based on the non-anchor carrier frequency And receiving the second system message, where the second system message includes a co-frequency cell list and an inter-frequency cell list with respect to the anchor carrier frequency point and all non-anchor carrier frequency points.
  • the present disclosure further provides a paging apparatus, including: a receiving unit, configured to receive a paging message from a base station on a first non-anchor carrier of a multi-carrier cell, the seeking The call message carries the downlink data arrival indication information and/or the system message change indication information; the processing unit is configured to initiate random access according to the paging message received by the receiving unit, And/or receiving a changed system message; wherein the multi-carrier cell includes an anchor carrier and a plurality of non-anchor carriers.
  • the paging message received by the receiving unit carries the downlink data arrival indication information;
  • the processing unit includes: a determining module, configured to determine whether the first non-anchor carrier is configured with a corresponding random access a first access module, configured to initiate random access from the first non-anchor carrier if the determining module determines that the first non-anchor carrier is configured with the random access resource; a second access module, configured to: when the determining module determines that the first non-anchor carrier is not configured with the random access resource, jump to another non-anchor carrier or an anchor carrier to initiate random access .
  • the second access module is configured to: if the random access resource is configured on other non-anchor carriers other than the first non-anchor carrier, jump to one of the configured interfaces Initiating a random access on a non-anchor carrier of the random access resource; if the random access resource is not configured on the non-anchor carrier other than the first non-anchor carrier, jumping to the anchor point Random access is initiated on the carrier.
  • the paging message received by the receiving unit carries the system message change indication information;
  • the processing unit includes: a jump module, configured to change indication information according to the system message, from the first non-anchor The point carrier jumps to the anchor carrier;
  • the system message receiving module is configured to receive the changed system message on the anchor carrier.
  • the apparatus further includes: a selecting unit, configured to select to use an anchor carrier or a non-selection according to a paging carrier selection policy before receiving the paging message from the base station on the first non-anchor carrier of the multi-carrier cell
  • the anchor carrier receives a paging message from the base station.
  • the paging carrier selection policy includes: modulo the paging cycle sequence number to N in a plurality of paging cycles included in a period of time, and the same paging cycle using the same paging carrier is obtained.
  • N is an integer greater than one and less than the number of the paging cycle.
  • the paging carrier selection policy includes performing time division multiplexing on the anchor carrier and each of the non-anchor carriers according to a time domain radio frame configured by the base station.
  • the paging carrier selection policy includes: a signal coverage level based on a base station configuration.
  • the mapping relationship with the paging carrier selects a paging carrier.
  • the apparatus further includes: a camping unit configured to camp on an anchor carrier or a non-anchor carrier of the multi-carrier cell when in a radio resource control RRC idle state.
  • a camping unit configured to camp on an anchor carrier or a non-anchor carrier of the multi-carrier cell when in a radio resource control RRC idle state.
  • the device further includes: a list obtaining unit, configured to acquire a co-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency point when camping on the non-anchor carrier In order to perform intra-frequency measurement and inter-frequency measurement for cell reselection on the non-anchor carrier.
  • a list obtaining unit configured to acquire a co-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency point when camping on the non-anchor carrier In order to perform intra-frequency measurement and inter-frequency measurement for cell reselection on the non-anchor carrier.
  • the list obtaining unit includes:
  • a first receiving module configured to receive a first system message, where the first system message includes a co-frequency cell list and an inter-frequency cell list based on the anchor carrier frequency point; and a conversion module configured to be based on the anchor
  • the same-frequency cell list and the inter-frequency cell list of the point carrier frequency point are converted into an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency point; or the second receiving module is configured to receive the second system message,
  • the second system message includes a co-frequency cell list and an inter-frequency cell list with respect to an anchor carrier frequency point and all non-anchor carrier frequency points.
  • the present disclosure also provides a user equipment including any of the paging devices provided by the present disclosure.
  • the present disclosure also provides a paging system including a mobility management entity, a base station, and any of the user equipments provided by the present disclosure.
  • a storage medium comprising a stored program, wherein the program is executed to perform the method of any of the above.
  • a processor for running a program wherein the program is executed to perform the method of any of the above.
  • the paging method, device and system, and user equipment provided by the embodiments of the present disclosure are capable of receiving a paging message from a base station on a first non-anchor carrier of a multi-carrier cell, and according to a downlink data arrival indication carried in the paging message.
  • Information and/or system message change indication information a system message that initiates random access and/or receives changes.
  • the non-anchor carrier resources in the multi-carrier cell can be fully utilized to receive the paging message, which greatly expands the paging capacity and makes the paging load more balanced.
  • FIG. 1 is a flowchart of a paging method according to an embodiment of the present disclosure
  • FIG. 2 is another flowchart of a paging method according to an embodiment of the present disclosure
  • FIG. 3 is still another flowchart of a paging method according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of behavior determination of a UE after performing paging monitoring on a Non Anchor carrier and receiving an associated paging message in the embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of behavior determination of a UE when the paging of the paging is completed on the Non Anchor carrier and the related paging message is not received in the embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a paging apparatus according to an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a paging method, including:
  • the multi-carrier cell includes an anchor carrier and a plurality of non-anchor carriers.
  • the paging method provided by the embodiment of the present disclosure can receive a paging message from a base station on a first non-anchor carrier of a multi-carrier cell, and change according to downlink data arrival indication information and/or system message carried in the paging message. Indicates information, a system message that initiates random access and/or receives changes. In this way, when the user equipment is paged by the base station, the non-anchor carrier resources in the multi-carrier cell can be fully utilized to receive the paging message, which greatly expands the paging capacity and makes the paging load more balanced.
  • the paging message received in step S11 carries the downlink data arrival indication information
  • the random access is initiated according to the paging message in step S12, and/or the receiving system is changed.
  • Information can include:
  • the first non-anchor carrier is configured with the random access resource, random access is initiated from the first non-anchor carrier;
  • the jump to other non-anchor carriers or the anchor carrier initiates random access.
  • the user equipment may receive the paging message on the non-anchor carrier, and initiate random access according to the access resource configuration, and then receive the corresponding downlink data.
  • the hopping to the other non-anchor carrier or the anchor carrier to initiate the random access may include:
  • the random access resource is configured on the non-anchor carrier other than the first non-anchor carrier, jump to one of the non-anchor carriers configured with the random access resource to initiate random access. ;
  • the random access resource is not configured on other non-anchor carriers other than the first non-anchor carrier, jump to the anchor carrier to initiate random access.
  • the multi-carrier cell includes one anchor carrier and five non-anchor carriers, wherein random access resources are configured on the third non-anchor carrier.
  • the user equipment receives the paging message on the first non-anchor carrier, and finds that the paging message carries the downlink data arrival indication information, the user may jump from the first non-anchor carrier to the third non-anchor. Random access is initiated on the point carrier to receive corresponding downlink data.
  • the paging message received by the user equipment may further carry system message change indication information; the system change indication information is used to indicate that the system message is about to change.
  • step S12 initiating random access according to the paging message, and/or receiving the changed system message may include:
  • a changed system message is received on the anchor carrier.
  • the system message can only be transmitted and received through the control channel in the anchor carrier, when the user equipment is on the non-anchor carrier, if the system message needs to be received, it first needs to be changed according to the system message carried in the paging message.
  • the indication information jumps to the anchor carrier and then receives the corresponding system message on the anchor carrier.
  • the user equipment is in a multi-carrier cell, which can receive the paging message from the base station using the anchor carrier, or receive the paging message from the base station by using the non-anchor carrier.
  • the anchor point may be selected according to the paging carrier selection policy.
  • the carrier or non-anchor carrier receives a paging message from the base station.
  • the paging carrier selection policy may be: modulo the paging cycle sequence number to N in multiple paging cycles included in a period of time, and use the same paging carrier for the same paging cycle.
  • N is an integer greater than one and less than the number of the paging cycle.
  • the number of paging periods of the UE is NT (the number of paging periods may be the total number of starting superframes that can be used for paging in one HSFN period)
  • the period; N can be specified as any value from 1 to NT), and the Nith paging period satisfying the formula is allocated on the Anchor carrier.
  • the same configuration rule is used on both the UE side and the eNB side, so that both can be consistent in initiating paging and receiving paging.
  • the paging carrier selection policy may further perform time division multiplexing on the anchor carrier and each of the non-anchor carriers according to a time domain radio frame configured by the base station.
  • the base station can separately configure the Non Anchor PRB corresponding to the time domain radio frame for paging.
  • a spacing method can be used. Assuming that the paging cycle is 640 ms once, if the interval is set to 1, the PRB for odd pages is used for Non-Anchor, and the PRB for paging for even-numbered cycles is at Anchor. If the interval is set to 0, it means that the UE is always at Non Anchor.
  • the UE first selects a corresponding Non Anchor carrier according to the selection policy of the paging carrier, and then the UE completes paging monitoring on the corresponding carrier according to the time domain resource location corresponding to the PRB configured for paging by the base station.
  • the paging carrier selection policy includes: selecting a paging carrier based on a mapping relationship between a signal coverage level configured by the base station and a paging carrier.
  • the base station may broadcast some configuration message to each user equipment, where the configuration message may include a coverage enhancement level (CE level) of the user equipment and a paging carrier. Mapping relations. Then, the user equipment can select the corresponding paging carrier according to its current signal coverage level.
  • the signal coverage level of the user equipment may be, for example, excellent, good, medium, or poor.
  • one CE level may correspond to multiple paging carriers, or one CE level may correspond to one paging carrier, or one paging carrier may correspond to multiple CE levels.
  • the embodiments of the present disclosure do not limit this.
  • the user equipment may use a paging carrier selection algorithm to select an appropriate carrier, or determine an optional range of a paging carrier; and correspond to one paging at one CE level.
  • the user equipment can directly select the carrier corresponding to the CE level.
  • each carrier may send a paging message according to the number of repetitions corresponding to its CE level.
  • the signal coverage may be different.
  • the user equipment may continue to listen to the paging message on the carrier, and search for the latest CE level. The location where the message is monitored.
  • the paging may fail.
  • the base station will increase the level according to the original CE level and follow the enhanced number of repetitions after the next paging cycle. Paging the UE.
  • the user equipment may also switch to the paging carrier corresponding to the changed CE level according to the change of the CE level. In this case, the base station is in the paging After the failure, the paging message may be selected to be sent on the carrier corresponding to the CE level increase or decrease before the user in the next paging cycle.
  • the UE when the UE (user equipment) is in the RRC idle state, the UE may camp on the anchor carrier or the non-anchor carrier of the multi-carrier cell.
  • the UE When camping on the non-anchor carrier, the UE may acquire an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency to perform cell reselection on the non-anchor carrier Same frequency measurement, inter-frequency measurement.
  • a method for obtaining an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency point may include:
  • the first system message includes a co-frequency cell list and an inter-frequency cell list based on the anchor carrier frequency point;
  • the intra-frequency cell list and the inter-frequency cell list based on the anchor carrier frequency point are converted into an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency.
  • the paging message may be received, and the paging message carries the system message change indication information, and the UE may jump to the anchor point according to the system message change indication information.
  • the carrier On the carrier to receive the first system message on the anchor carrier. Included in the first system message is a list formed by the same frequency cell relative to the anchor carrier frequency point and a list formed by the inter-frequency cell, in order to determine whether the cells in the cell list are the same frequency or different relative to each non-anchor carrier carrier. Frequency, it is also required to convert the co-frequency cell list and the inter-frequency cell list based on the anchor carrier frequency point into an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency.
  • a method for obtaining an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency point may include receiving a second system message, where the second system message The list includes the same-frequency cell list and the inter-frequency cell list with respect to the anchor carrier frequency point and all non-anchor carrier frequency points. That is to say, in the second system message, the base station directly lists the same-frequency cell and the inter-frequency cell corresponding to each non-anchor carrier, respectively, thereby reducing the calculation amount of the UE.
  • the MME Mobility Management Entity
  • TA Tracking Area
  • All eNodeBs send a paging message, and then the eNodeB sends a paging message to notify the UE, as shown in FIG. 2.
  • the UE listens to the paging message at the corresponding location according to the calculation formula of the paging occasion (PO, Paging Occasion).
  • PO the calculation formula of the paging occasion
  • the MME After transmitting the paging message, the MME determines whether the current paging is successfully received by the UE according to whether the UE performs the corresponding action next. If the UE is not successfully received, the MME will continue to page in the next paging cycle. The user.
  • FIG. 3 is a flowchart of a multi-carrier paging transmission process provided by the present disclosure.
  • the eNodeB interprets the content thereof to obtain UE-ID information, according to the paging of the UE.
  • the paging carrier carried by the message sends a paging message on the corresponding paging carrier, and the UE will listen to the paging message on the paging carrier carried by the paging message.
  • the eNodeB repeatedly sends a paging message on the paging carrier during a paging period.
  • FIG. 4 shows the behavior decision of the UE after the paging monitoring is performed on the Non Anchor carrier and the related paging message is received for the UE that has selected the Non Anchor carrier through the paging selection policy.
  • the UE if the paging message monitored by the UE is triggered by the arrival of the downlink data, the UE will initiate random access on the Non Anchor carrier or hop to the Anchor carrier to initiate random access, which may be randomly selected.
  • the configuration of the incoming resources is determined. If the resource carrying the random access preamble sequence is configured on the Non Anchor carrier, the UE selects the Non Anchor carrier and initiates random access thereon, that is, selects the corresponding Non Anchor carrier according to the configuration of the PRACH carrier and the PRACH carrier selection policy. Initiate random access. If the resource for transmitting the random access preamble sequence is not configured on the Non Anchor carrier and only the resource for transmitting the random access preamble sequence is configured on the Anchor carrier, the UE will jump to the Anchor carrier and initiate random access.
  • FIG. 5 shows the behavior decision of the UE after the paging of the paging selection policy is selected, after the paging of the paging is completed, after the relevant paging message is not received.
  • the UE performs the paging monitoring on the Non Anchor carrier
  • the relevant paging message is not received, preferably, the UE will continue to stay on the Non Anchor carrier until the system carried in the paging message is received.
  • the change indication information of the message so as to jump to the Anchor carrier to receive the paging message, or until the downlink data arrival information carried in the paging message is monitored, and then initiate random access between the Anchor carrier and the Non Anchor carrier.
  • the UE in the idle state camps on the Non Anchor carrier, which can reduce the number of handovers between the Anchor carrier and the Non Anchor, and reduce the power consumption caused by the inter-carrier handover.
  • the UE may also hop on the Anchor carrier, that is, the UE in the idle state camps on the Anchor carrier.
  • the UE may select the corresponding paging carrier to perform the paging reception and reception according to the selection method of the paging carrier.
  • the carrier selection method a certain Non Anchor carrier may be selected. In this case, the UE needs to jump to the Non Anchor carrier to listen to the paging message. It is also possible to select the resident Anchor carrier according to the carrier selection method and then directly listen on the carrier. Paging message.
  • the definition of the paging carrier list in the paging carrier selection method may only contain the Non Anchor carrier list or may contain not only the Non Anchor carrier list but also the Anchor carrier.
  • an embodiment of the present disclosure further provides a paging apparatus, including:
  • the receiving unit 61 is configured to receive a paging message from the base station on the first non-anchor carrier of the multi-carrier cell, where the paging message carries downlink data arrival indication information and/or system message change indication information;
  • the processing unit 62 is configured to initiate random access according to the paging message received by the receiving unit, and/or receive the changed system message;
  • the multi-carrier cell includes an anchor carrier and a plurality of non-anchor carriers.
  • the receiving unit 61 is capable of receiving a paging message from the base station on the first non-anchor carrier of the multi-carrier cell
  • the processing unit 62 is capable of canceling according to the paging
  • the downlink data carried in the information reaches the indication information and/or the system message change indication information, and initiates a system message of random access and/or receiving the change.
  • the non-anchor carrier resources in the multi-carrier cell can be fully utilized to receive the paging message, which greatly expands the paging capacity and makes the paging load more balanced.
  • the paging message received by the receiving unit 61 carries the downlink data arrival indication information
  • Processing unit 62 can include:
  • a determining module configured to determine whether the first non-anchor carrier is configured with a corresponding random access resource
  • a first access module configured to initiate random access from the first non-anchor carrier when the determining module determines that the first non-anchor carrier is configured with the random access resource
  • a second access module configured to: when the determining module determines that the first non-anchor carrier is not configured with the random access resource, jump to another non-anchor carrier or an anchor carrier to initiate random access .
  • the second access module is set to:
  • the random access resource is configured on the non-anchor carrier other than the first non-anchor carrier, jump to one of the non-anchor carriers configured with the random access resource to initiate random access. ;
  • the random access resource is not configured on other non-anchor carriers other than the first non-anchor carrier, jump to the anchor carrier to initiate random access.
  • the paging message received by the receiving unit 61 carries the system message change indication information
  • Processing unit 62 can include:
  • a jump module configured to jump from the first non-anchor carrier to the anchor carrier according to the system message change indication information
  • a system message receiving module is configured to receive the changed system message on the anchor carrier.
  • the paging apparatus may further include: a selecting unit configured to: before receiving the paging message from the base station on the first non-anchor carrier of the multi-carrier cell, according to the paging carrier selection policy, A paging message from the base station is selected to be received using an anchor carrier or a non-anchor carrier.
  • the paging carrier selection policy may include: modulo the paging cycle sequence number to N in multiple paging cycles included in a period of time, and use the same paging carrier for the same paging cycle with the same result.
  • N is an integer greater than one and less than the number of the paging cycle.
  • the paging carrier selection policy may further include time division multiplexing the anchor carrier and each of the non-anchor carriers according to a time domain radio frame configured by the base station.
  • the paging carrier selection policy includes: selecting a paging carrier based on a mapping relationship between a signal coverage level configured by the base station and a paging carrier.
  • the base station may broadcast some configuration message to each user equipment, where the configuration message may include a coverage enhancement level (CE level) of the user equipment and a paging carrier. Mapping relations. Then, the user equipment can select the corresponding paging carrier according to its current signal coverage level.
  • the signal coverage level of the user equipment may be, for example, excellent, good, medium, or poor.
  • one CE level may correspond to multiple paging carriers, or one CE level may correspond to one paging carrier, or one paging carrier may correspond to multiple CE levels.
  • the embodiments of the present disclosure do not limit this.
  • the user equipment may use a paging carrier selection algorithm to select an appropriate carrier, or determine an optional range of a paging carrier; and correspond to one paging at one CE level.
  • the user equipment can directly select the carrier corresponding to the CE level.
  • each carrier may send a paging message according to the number of repetitions corresponding to its CE level.
  • the signal coverage may be different.
  • the user equipment may continue to listen to the paging message on the carrier, and search for the latest CE level. The location where the message is monitored.
  • the base station cannot know the information about the change of the CE level of the user in time, the paging failure may be caused.
  • the station will enhance one level according to the original CE level and page the UE according to the corresponding repeated repetition times.
  • the user equipment may also switch to the paging carrier corresponding to the changed CE level according to the change of the CE level. In this case, after the paging fails, the base station may select to send a paging message on the carrier corresponding to the CE level increase or decrease before the user in the next paging cycle.
  • the paging apparatus may further include: a camping unit configured to camp on an anchor carrier or a non-anchor carrier of the multi-carrier cell when in a radio resource control RRC idle state stay.
  • a camping unit configured to camp on an anchor carrier or a non-anchor carrier of the multi-carrier cell when in a radio resource control RRC idle state stay.
  • the paging apparatus may further include a list obtaining unit, configured to acquire a list of intra-frequency cells based on the non-anchor carrier frequency point when camping on the non-anchor carrier And an inter-frequency cell list to perform intra-frequency measurement and inter-frequency measurement for cell reselection on the non-anchor carrier.
  • a list obtaining unit configured to acquire a list of intra-frequency cells based on the non-anchor carrier frequency point when camping on the non-anchor carrier
  • an inter-frequency cell list to perform intra-frequency measurement and inter-frequency measurement for cell reselection on the non-anchor carrier.
  • the list obtaining unit may include: a first receiving module, configured to receive a first system message, where the first system message includes an intra-frequency cell list and an inter-frequency cell based on the anchor carrier frequency point a conversion module, configured to convert the co-frequency cell list and the inter-frequency cell list based on the anchor carrier frequency point into an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency.
  • a first receiving module configured to receive a first system message, where the first system message includes an intra-frequency cell list and an inter-frequency cell based on the anchor carrier frequency point
  • a conversion module configured to convert the co-frequency cell list and the inter-frequency cell list based on the anchor carrier frequency point into an intra-frequency cell list and an inter-frequency cell list based on the non-anchor carrier frequency.
  • the list obtaining unit may further include: a second receiving module, configured to receive a second system message, where the second system message includes a carrier frequency point relative to the anchor point and all non-anchor carrier frequency points Co-frequency cell list, inter-frequency cell list.
  • a second receiving module configured to receive a second system message, where the second system message includes a carrier frequency point relative to the anchor point and all non-anchor carrier frequency points Co-frequency cell list, inter-frequency cell list.
  • the embodiment of the present disclosure further provides a user equipment, including any paging apparatus provided by the foregoing embodiment, and thus can achieve corresponding technical effects.
  • a user equipment including any paging apparatus provided by the foregoing embodiment, and thus can achieve corresponding technical effects.
  • the foregoing has been described in detail, and details are not described herein again. .
  • an embodiment of the present disclosure further provides a paging system, including a mobility management entity, a base station, and any user equipment provided by an embodiment of the present disclosure, so that corresponding technical effects can also be achieved, and the foregoing has been detailed. Description, no more details here.
  • a paging method, apparatus, and system, and user equipment provided by an embodiment of the present disclosure have the following beneficial effects: capable of receiving a paging message from a base station on a first non-anchor carrier of a multi-carrier cell, and according to The downlink data arrival indication information and/or the system message change indication information carried in the paging message initiates a random access and/or receives the changed system message.
  • the non-anchor carrier resources in the multi-carrier cell can be fully utilized to receive the paging message, which greatly expands the paging capacity and makes the paging load more balanced.

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Abstract

本公开实施例中公开了一种寻呼方法、装置及系统、用户设备，涉及通信领域，用以解决现有技术中多载波小区中的非锚点载波无法接收寻呼消息，使寻呼容量受限，负载失衡的问题。所述方法包括：在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，所述寻呼消息中携带下行数据到达指示信息和/或系统消息变更指示信息；根据所述寻呼消息发起随机接入，和/或接收变更的系统消息；其中，所述多载波小区包括一个锚点载波和多个非锚点载波。

Description

一种寻呼方法、装置及系统、用户设备 技术领域
本公开涉及通信技术领域，特别是涉及一种寻呼方法、装置及系统、用户设备。
背景技术
在未来的移动网络应用中，对业务量需求、终端数目以及终端种类都将会呈现爆发时的增长趋势。作为5G的重要场景和技术手段之一，机器间通信(MTC，Machine Type Communication)正受到越来越多的关注。在MTC课题里，针对低成本低吞吐量类型终端的特性，提出了窄带物联网(NB-IoT，Narrowband-Internet of Things)的研究子课题：利用200kHZ频带为NB-IoT低成本终端提供低吞吐量的无线通讯服务。
鉴于此，在3GPP R13阶段提出了多载波(Multi-Carrier)小区的概念，即由多个频点组成一个小区，且每个频点/载波占据200khz的窄带，但只有一个频点承载窄带主/辅同步信号(NB-PSS/SSS，NarrowBand-Primary Synchronization Signal/Secondary Synchronization Signal),窄带物理广播信道(NB-PBCH,NarrowBand-Physical Broadcast Channel)、系统信息块(SIB,System Information Block)，这样的频点称为锚点载波(Anchor-Carrier)或锚点PRB(Anchor-PRB，Anchor-Physical Resource Block)。其它的频点称为非锚点载波(Non Anchor-Carrier))或非锚点PRB(Non Anchor-PRB，Non Anchor-Physical Resource Block)。这些非锚点载波上不承载NB-PSS/SSS,NB-PBCH、SIB，仅承载数据业务相关的信道，如窄带物理下行控制信道(NB-PDCCH,NarrowBand-Physical Downlink Control Channel)、窄带物理下行共享信道(NB-PDSCH,NarrowBand-Physical Downlink Shared Channel)、窄带物理上行共享信道(NB-PUSCH,NarrowBand-Physical Uplink Shared Channel)。这样，既节省了公共信道的开销，又减少了异频小区的数量。
然而，对于这样的小区结构，寻呼(Paging)仅承载在Anchor-Carrier上，从而导致Paging的容量大大受限，而且各频点载波负载不均衡。
公开内容
本公开要解决的技术问题是提供一种寻呼方法、装置及系统、用户设备，用以解决现有技术中多载波小区中的非锚点载波无法接收寻呼消息，使寻呼容量受限，负载失衡的问题。
根据本公开的一个实施例，本公开提供了一种寻呼方法，包括：在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，所述寻呼消息中携带下行数据到达指示信息和/或系统消息变更指示信息；根据所述寻呼消息发起随机接入，和/或接收变更的系统消息；其中，所述多载波小区包括一个锚点载波和多个非锚点载波。
可选的，所述寻呼消息携带所述下行数据到达指示信息；所述根据所述寻呼消息发起随机接入，和/或接收系统变更消息包括：确定所述第一非锚点载波是否配置了相应的随机接入资源；在所述第一非锚点载波配置了所述随机接入资源的情况下，从所述第一非锚点载波发起随机接入；在所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入。
可选的，在所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入包括：如果所述第一非锚点载波之外的其他非锚点载波上配置有所述随机接入资源，跳转到其中一个配置了所述随机接入资源的非锚点载波上发起随机接入；如果所述第一非锚点载波之外的其他非锚点载波上未配置所述随机接入资源，跳转到所述锚点载波上发起随机接入。
可选的，所述寻呼消息携带所述系统消息变更指示信息；所述根据所述寻呼消息发起随机接入，和/或接收变更的系统消息包括：根据所述系统消息变更指示信息，从所述第一非锚点载波跳转到所述锚点载波；在所述锚点载波上接收变更的系统消息。
可选的，在多载波小区的第一非锚点载波上接收来自基站的寻呼消息前，所述方法还包括：根据寻呼载波选择策略，选择使用锚点载波或者非锚点载波接收来自所述基站的寻呼消息。
可选的，所述寻呼载波选择策略包括：在一段时间包含的多个寻呼周期中，将寻呼周期序号对N取模，所得的结果相同的寻呼周期使用相同的寻呼载波，其中N为大于1且小于所述寻呼周期序号的整数。
可选的，所述寻呼载波选择策略包括：根据基站配置的时域无线帧，对所述锚点载波以及各所述非锚点载波进行时分复用。
可选的，所述寻呼载波选择策略包括：基于基站配置的信号覆盖等级与寻呼载波的映射关系选择寻呼载波。
可选的，所述方法还包括：当处于RRC(radio resource control，无线资源控制)空闲态时，在所述多载波小区的锚点载波或者非锚点载波上驻留。
可选的，所述方法还包括：当在所述非锚点载波上驻留时，获取基于所述非锚点载波频点的同频小区列表和异频小区列表，以便在所述非锚点载波上为小区重选进行同频测量、异频测量。
可选的，所述获取基于所述非锚点载波频点的同频小区列表和异频小区列表包括：接收第一系统消息，所述第一系统消息中包括基于所述锚点载波频点的同频小区列表和异频小区列表；将基于所述锚点载波频点的同频小区列表和异频小区列表转化为基于所述非锚点载波频点的同频小区列表和异频小区列表；或者接收第二系统消息，所述第二系统消息中包括相对于锚点载波频点和所有非锚点载波频点的同频小区列表、异频小区列表。
根据本公开的另一个实施例，本公开还提供了一种寻呼装置，包括：接收单元，设置为在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，所述寻呼消息中携带下行数据到达指示信息和/或系统消息变更指示信息；处理单元，设置为根据所述接收单元接收的寻呼消息发起随机接入， 和/或接收变更的系统消息；其中，所述多载波小区包括一个锚点载波和多个非锚点载波。
可选的，所述接收单元接收的寻呼消息携带所述下行数据到达指示信息；所述处理单元包括：确定模块，设置为确定所述第一非锚点载波是否配置了相应的随机接入资源；第一接入模块，设置为在所述确定模块确定所述第一非锚点载波配置了所述随机接入资源的情况下，从所述第一非锚点载波发起随机接入；第二接入模块，设置为在所述确定模块确定所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入。
可选的，所述第二接入模块，设置为：如果所述第一非锚点载波之外的其他非锚点载波上配置有所述随机接入资源，跳转到其中一个配置了所述随机接入资源的非锚点载波上发起随机接入；如果所述第一非锚点载波之外的其他非锚点载波上未配置所述随机接入资源，跳转到所述锚点载波上发起随机接入。
可选的，所述接收单元接收的寻呼消息携带所述系统消息变更指示信息；所述处理单元包括：跳转模块，设置为根据所述系统消息变更指示信息，从所述第一非锚点载波跳转到所述锚点载波；系统消息接收模块，设置为在所述锚点载波上接收变更的系统消息。
可选的，所述装置还包括：选择单元，设置为在多载波小区的第一非锚点载波上接收来自基站的寻呼消息前，根据寻呼载波选择策略，选择使用锚点载波或者非锚点载波接收来自所述基站的寻呼消息。
可选的，所述寻呼载波选择策略包括：在一段时间包含的多个寻呼周期中，将寻呼周期序号对N取模，所得的结果相同的寻呼周期使用相同的寻呼载波，其中N为大于1且小于所述寻呼周期序号的整数。
可选的，所述寻呼载波选择策略包括：根据基站配置的时域无线帧，对所述锚点载波以及各所述非锚点载波进行时分复用。
可选的，所述寻呼载波选择策略包括：基于基站配置的信号覆盖等级 与寻呼载波的映射关系选择寻呼载波。
可选的，所述装置还包括：驻留单元，设置为当处于无线资源控制RRC空闲态时，在所述多载波小区的锚点载波或者非锚点载波上驻留。
可选的，所述装置还包括：列表获取单元，设置为当在所述非锚点载波上驻留时，获取基于所述非锚点载波频点的同频小区列表和异频小区列表，以便在所述非锚点载波上为小区重选进行同频测量、异频测量。
可选的，所述列表获取单元包括：
第一接收模块，设置为接收第一系统消息，所述第一系统消息中包括基于所述锚点载波频点的同频小区列表和异频小区列表；转化模块，设置为将基于所述锚点载波频点的同频小区列表和异频小区列表转化为基于所述非锚点载波频点的同频小区列表和异频小区列表；或者第二接收模块，设置为接收第二系统消息，所述第二系统消息中包括相对于锚点载波频点和所有非锚点载波频点的同频小区列表、异频小区列表。
根据本公开的另一个实施例，本公开还提供了一种用户设备，所述用户设备包括本公开提供的任一种寻呼装置。
根据本公开的另一个实施例，本公开还提供了一种寻呼系统，所述寻呼系统包括移动管理实体、基站以及本公开提供的任一种用户设备。
根据本公开的又一个实施例，还提供了一种存储介质，所述存储介质包括存储的程序，其中，所述程序运行时执行上述任一项所述的方法。
根据本公开的又一个实施例，还提供了一种处理器，所述处理器用于运行程序，其中，所述程序运行时执行上述任一项所述的方法。
本公开实施例提供的寻呼方法、装置及系统、用户设备，能够在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，并且根据寻呼消息中携带的下行数据到达指示信息和/或系统消息变更指示信息，发起随机接入和/或接收变更的系统消息。这样，当用户设备被基站寻呼时，就可以充分利用多载波小区中的非锚点载波资源接收寻呼消息，大大扩充了寻呼容量也使寻呼负载更加平衡。
附图说明
图1是本公开实施例提供的寻呼方法的一种流程图；
图2是本公开实施例提供的寻呼方法的另一种流程图；
图3是本公开实施例提供的寻呼方法的又一种流程图；
图4是本公开实施例中当在Non Anchor载波上完成paging的监听并接收到相关的paging消息后UE的行为决策示意图；
图5是本公开实施例中当在Non Anchor载波上完成paging的监听且未接收到相关的paging消息时UE的行为决策示意图；
图6是本公开实施例提供的寻呼装置的一种结构示意图。
具体实施方式
以下结合附图对本公开进行详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本公开，并不限定本公开。
如图1所示，本公开实施例提供一种寻呼方法，包括：
S11，在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，所述寻呼消息中携带下行数据到达指示信息和/或系统消息变更指示信息；
S12，根据所述寻呼消息发起随机接入，和/或接收变更的系统消息；
其中，所述多载波小区包括一个锚点载波和多个非锚点载波。
本公开实施例提供的寻呼方法，能够在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，并且根据寻呼消息中携带的下行数据到达指示信息和/或系统消息变更指示信息，发起随机接入和/或接收变更的系统消息。这样，当用户设备被基站寻呼时，就可以充分利用多载波小区中的非锚点载波资源接收寻呼消息，大大扩充了寻呼容量也使寻呼负载更加平衡。
可选的，当步骤S11中接收到的寻呼消息携带下行数据到达指示信息时，步骤S12中根据所述寻呼消息发起随机接入，和/或接收系统变更消 息可包括：
确定所述第一非锚点载波是否配置了相应的随机接入资源；
在所述第一非锚点载波配置了所述随机接入资源的情况下，从所述第一非锚点载波发起随机接入；
在所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入。
也就是说，当寻呼消息是由下行数据的到达触发时，用户设备可以在非锚点载波上接收寻呼消息，并根据接入资源配置情况发起随机接入，随后接收相应的下行数据。
可选的，在所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入可包括：
如果所述第一非锚点载波之外的其他非锚点载波上配置有所述随机接入资源，跳转到其中一个配置了所述随机接入资源的非锚点载波上发起随机接入；
如果所述第一非锚点载波之外的其他非锚点载波上未配置所述随机接入资源，跳转到所述锚点载波上发起随机接入。
例如，在本公开的一个实施例中，多载波小区包括一个锚点载波和5个非锚点载波，其中在第三非锚点载波上配置了随机接入资源。当用户设备在其中的第一非锚点载波上接收到寻呼消息，并发现该寻呼消息中携带有下行数据到达指示信息时，可以从第一非锚点载波跳转到第三非锚点载波上发起随机接入从而接收相应的下行数据。
可选的，在本公开的另一个实施例中，用户设备接收到的寻呼消息中还可以携带系统消息变更指示信息；该系统变更指示信息用于指示系统消息即将发生变更。
基于此，在步骤S12中，根据所述寻呼消息发起随机接入，和/或接收变更的系统消息可包括：
根据所述系统消息变更指示信息，从所述第一非锚点载波跳转到所述锚点载波；
在所述锚点载波上接收变更的系统消息。
由于系统消息只能通过锚点载波中的控制信道进行传输和接收，因此，当用户设备处于非锚点载波上时，如果需要接收系统消息，则首先需要根据寻呼消息中携带的系统消息变更指示信息跳转到锚点载波上，然后在锚点载波上接收相应的系统消息。
需要说明的是，本公开的实施例中，用户设备处于多载波小区，其既可以使用锚点载波接收来自基站的寻呼消息，也可以使用非锚点载波接收来自基站的寻呼消息。为了充分利用多载波小区的频率资源，也为了平衡小区负载，在多载波小区的第一非锚点载波上接收来自基站的寻呼消息前，还可以根据寻呼载波选择策略，选择使用锚点载波或者非锚点载波接收来自所述基站的寻呼消息。
可选的，所述寻呼载波选择策略可以为：在一段时间包含的多个寻呼周期中，将寻呼周期序号对N取模，所得的结果相同的寻呼周期使用相同的寻呼载波，其中N为大于1且小于所述寻呼周期序号的整数。
举例说明，在一个HSFN周期(即2.91小时)内，UE的paging周期的个数为NT个(此paging周期个数可以为在一个HSFN周期内可用于paging的起始超帧的总个数)；现使这NT个paging周期分别分布在Non Anchor载波和Anchor载波上；具体的分配方法，如选用公式Ni mod N＝0(其中Ni＝1,2,…,NT，表示第Ni个寻呼周期；N可以指定为1～NT中任意值)，对于满足该公式的第Ni个paging周期分配在Anchor载波上。在UE侧和eNB侧均使用相同的配置规则，因此可以使二者在发起寻呼和接收寻呼中保持一致。
此外，在本公开的一个实施例中，寻呼载波选择策略还可以为根据基站配置的时域无线帧，对所述锚点载波以及各所述非锚点载波进行时分复用。
具体而言，基站可以单独配置用于寻呼的Non Anchor PRB对应时域无线帧。例如可以采用间隔方式。假设寻呼周期为640ms一次，如果间隔设置为1，表示奇数周期用于寻呼的PRB在Non Anchor，偶数周期用于寻呼的PRB在Anchor。如果间隔设置为0，则表示UE一直在Non Anchor。UE首先根据paging载波的选择策略选择相应的Non Anchor载波，然后UE再根据基站配置的用于寻呼的PRB对应的时域资源位置在相应的时域位置在相应的载波上完成寻呼监听。
可选的，所述寻呼载波选择策略包括：基于基站配置的信号覆盖等级与寻呼载波的映射关系选择寻呼载波。具体而言，在本公开的一个实施例中，基站可以向各用户设备广播一些配置消息，该配置消息可以包括用户设备的信号覆盖等级(coverage enhancement level，简称为CE level)与寻呼载波的映射关系。那么，用户设备就可以根据自身当前信号覆盖等级来选择对应的寻呼载波。可选的，用户设备的信号覆盖等级例如可以为优、良、中、差等。在信号覆盖等级与寻呼载波的对应关系中，可以是一个CE level对应多个寻呼载波，也可以是一个CE level对应一个寻呼载波，还可以是一个寻呼载波对应多个CE level，本公开的实施例对此不做限定。
可选的，在一个CE level对应多个寻呼载波情况下，用户设备可以利用寻呼载波选择算法选择合适的载波，或者确定一个寻呼载波的可选范围；在一个CE level对应一个寻呼载波情况下，用户设备可以直接选择该CE level对应的载波。并且，根据该映射关系进行寻呼载波选择时，每个载波可以按照其CE level对应的重复次数去发送寻呼消息。
可选的，由于用户设备的位置可能发生变化，信号覆盖情况也会有所差别，当CE level变化后，用户设备可以继续在该载波上监听寻呼消息，并按照最新的CE level去搜索寻呼消息监听的位置。此时由于基站无法及时获知该用户的CE level发生变化的信息，可能导致本次的寻呼失败，基站会在下次寻呼周期到来时，按照原CE level增强一个等级并按照增强后对应重复次数寻呼该UE。可选的，用户设备也可以根据CE level的变化切换到变化后CE level对应的寻呼载波。在这种情况下，基站在该次寻呼 失败后，可以在下次寻呼周期内选择在该用户之前CE level增加或减少一个等级对应的载波上发送寻呼消息。
可选的，当UE(user equipment，用户设备)处于无线资源控制RRC空闲态时，可以在所述多载波小区的锚点载波或者非锚点载波上驻留。当在所述非锚点载波上驻留时，UE可以获取基于所述非锚点载波频点的同频小区列表和异频小区列表，以便在所述非锚点载波上为小区重选进行同频测量、异频测量。
可选的，在本公开的一个实施例中，获取基于所述非锚点载波频点的同频小区列表和异频小区列表的方法可包括：
接收第一系统消息，所述第一系统消息中包括基于所述锚点载波频点的同频小区列表和异频小区列表；
将基于所述锚点载波频点的同频小区列表和异频小区列表转化为基于所述非锚点载波频点的同频小区列表和异频小区列表。
也就是说，当UE在非锚点载波上驻留时，可以接收到寻呼消息，在该寻呼消息中携带系统消息变更指示信息，UE可以根据该系统消息变更指示信息跳转到锚点载波上，以便在锚点载波上接收第一系统消息。第一系统消息中包括的是相对于锚点载波频点的同频小区形成的列表和异频小区形成的列表，为了确定这些小区列表中的小区相对于各非锚点载波是同频还是异频，还需要将基于所述锚点载波频点的同频小区列表和异频小区列表转化为基于所述非锚点载波频点的同频小区列表和异频小区列表。
可选的，在本公开的另一个实施例中，获取基于所述非锚点载波频点的同频小区列表和异频小区列表的方法可包括接收第二系统消息，所述第二系统消息中包括相对于锚点载波频点和所有非锚点载波频点的同频小区列表、异频小区列表。也就是说，在第二系统消息中，基站直接将每个非锚点载波对应的同频小区和异频小区都分别列出，从而降低了UE的计算量。
下面结合如图，通过具体实施例对本公开提供的寻呼方法进行详细说 明。
在LTE系统中，如果要向处于空闲状态(即RRC状态为RRC-IDLE)UE发送数据的时候，MME(Mobility management entity，移动管理实体)需要向UE注册的跟踪区(TA，Tracking Area)内的所有eNodeB发送paging消息，然后eNodeB发送paging消息通知UE，如图2所示。UE根据寻呼时机(PO，Paging Occasion)的计算公式在相应的位置监听paging消息，当UE收到paging消息后将发起RRC连接请求，以便接收下行数据。MME在发送一次寻呼消息后根据UE在接下来是否执行相应的动作来判断本次寻呼是否被UE成功接收，如果没有被UE成功接收，将会在接下来的寻呼周期内继续寻呼该用户。
图3为本公开提供的多载波寻呼传输流程的流程图，如图3所示，eNodeB接收到MME下发的paging消息后，解读其中的内容得到UE-ID信息，根据该UE的寻呼消息所承载的寻呼载波，在相应的寻呼载波上下发paging消息，同时UE将会在其paging消息所承载的寻呼载波上监听该paging消息。对于覆盖增强场景的UE，在一个paging周期内，eNodeB会在该寻呼载波上重复发送paging消息。
图4示出了对于通过寻呼选择策略选择了Non Anchor载波的UE，在Non Anchor载波上完成paging的监听后，并接收到相关的paging消息后，UE的行为决策。如图4所示，若UE监听的paging消息是由下行数据的到达触发的，那么UE将在Non Anchor载波上发起随机接入或者跳到Anchor载波上再发起随机接入，具体的可由随机接入资源的配置情况决定。如果Non Anchor载波上配置有发送随机接入前导序列的资源，那么UE将选择Non Anchor载波并在其上发起随机接入，即根据PRACH载波的配置及PRACH载波选择策略选择相应的Non Anchor载波并发起随机接入。如果Non Anchor载波上没有配置发送随机接入前导序列的资源而只有Anchor载波上配置有发送随机接入前导序列的资源，那么UE将跳到Anchor载波上并发起随机接入。
图5示出了对于通过寻呼选择策略选择了Non Anchor载波的UE，在完成paging的监听后，在没有接收到相关的paging消息后，UE的行为决策。如图5所示，UE在Non Anchor载波上完成paging的监听后，在没有接收到相关的paging消息时，优选的，UE将继续停留在Non Anchor载波上直至接收到寻呼消息中携带的系统消息的变更指示信息，从而跳到Anchor载波上接收paging消息，或直至监听到paging消息中携带的下行数据到达信息后，在Anchor载波和Non Anchor载波间选择发起随机接入。也就是说，空闲态的UE在Non Anchor载波驻留，这样可减少UE在Anchor载波与Non Anchor间切换的次数，减少因载波间切换而带来的功率消耗。相对的，UE也可以将跳到Anchor载波上驻留，即空闲态的UE在Anchor载波驻留。
对于空闲态驻留在Anchor载波上的UE，UE在需要接收paging消息时，可以根据寻呼载波的选择方法选择相应的寻呼载波进行paging的监听接收。根据载波选择方法可能选择了某个Non Anchor载波，此种情况UE需要跳到该Non Anchor载波上监听paging消息；也可能根据载波选择方法选择了所驻留的Anchor载波进而可以直接在其上监听寻呼消息。在寻呼载波选择方法中寻呼载波列表的定义可能只含有Non Anchor载波列表也可能不但含有Non Anchor载波列表还含有Anchor载波。
相应的，如图6所示，本公开的实施例还提供一种寻呼装置，包括：
接收单元61，设置为在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，所述寻呼消息中携带下行数据到达指示信息和/或系统消息变更指示信息；
处理单元62，设置为根据所述接收单元接收的寻呼消息发起随机接入，和/或接收变更的系统消息；
其中，所述多载波小区包括一个锚点载波和多个非锚点载波。
本公开实施例提供的寻呼装置，接收单元61能够在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，处理单元62能够根据寻呼消 息中携带的下行数据到达指示信息和/或系统消息变更指示信息，发起随机接入和/或接收变更的系统消息。这样，当用户设备被基站寻呼时，就可以充分利用多载波小区中的非锚点载波资源接收寻呼消息，大大扩充了寻呼容量也使寻呼负载更加平衡。
可选的，接收单元61接收的寻呼消息携带所述下行数据到达指示信息；
处理单元62包括可包括：
确定模块，设置为确定所述第一非锚点载波是否配置了相应的随机接入资源；
第一接入模块，设置为在所述确定模块确定所述第一非锚点载波配置了所述随机接入资源的情况下，从所述第一非锚点载波发起随机接入；
第二接入模块，设置为在所述确定模块确定所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入。
可选的，第二接入模块，设置为：
如果所述第一非锚点载波之外的其他非锚点载波上配置有所述随机接入资源，跳转到其中一个配置了所述随机接入资源的非锚点载波上发起随机接入；
如果所述第一非锚点载波之外的其他非锚点载波上未配置所述随机接入资源，跳转到所述锚点载波上发起随机接入。
可选的，接收单元61接收的寻呼消息携带所述系统消息变更指示信息；
处理单元62可包括：
跳转模块，设置为根据所述系统消息变更指示信息，从所述第一非锚点载波跳转到所述锚点载波；
系统消息接收模块，设置为在所述锚点载波上接收变更的系统消息。
可选的，本公开实施例提供的寻呼装置还可包括：选择单元，设置为在多载波小区的第一非锚点载波上接收来自基站的寻呼消息前，根据寻呼载波选择策略，选择使用锚点载波或者非锚点载波接收来自所述基站的寻呼消息。
可选的，所述寻呼载波选择策略可包括：在一段时间包含的多个寻呼周期中，将寻呼周期序号对N取模，所得的结果相同的寻呼周期使用相同的寻呼载波，其中N为大于1且小于所述寻呼周期序号的整数。
可选的，寻呼载波选择策略还可包括根据基站配置的时域无线帧，对所述锚点载波以及各所述非锚点载波进行时分复用。
可选的，所述寻呼载波选择策略包括：基于基站配置的信号覆盖等级与寻呼载波的映射关系选择寻呼载波。具体而言，在本公开的一个实施例中，基站可以向各用户设备广播一些配置消息，该配置消息可以包括用户设备的信号覆盖等级(coverage enhancement level，简称为CE level)与寻呼载波的映射关系。那么，用户设备就可以根据自身当前信号覆盖等级来选择对应的寻呼载波。可选的，用户设备的信号覆盖等级例如可以为优、良、中、差等。在信号覆盖等级与寻呼载波的对应关系中，可以是一个CE level对应多个寻呼载波，也可以是一个CE level对应一个寻呼载波，还可以是一个寻呼载波对应多个CE level，本公开的实施例对此不做限定。
可选的，在一个CE level对应多个寻呼载波情况下，用户设备可以利用寻呼载波选择算法选择合适的载波，或者确定一个寻呼载波的可选范围；在一个CE level对应一个寻呼载波情况下，用户设备可以直接选择该CE level对应的载波。并且，根据该映射关系进行寻呼载波选择时，每个载波可以按照其CE level对应的重复次数去发送寻呼消息。
可选的，由于用户设备的位置可能发生变化，信号覆盖情况也会有所差别，当CE level变化后，用户设备可以继续在该载波上监听寻呼消息，并按照最新的CE level去搜索寻呼消息监听的位置。此时由于基站无法及时获知该用户的CE level发生变化的信息，可能导致本次的寻呼失败，基 站会在下次寻呼周期到来时，按照原CE level增强一个等级并按照增强后对应重复次数寻呼该UE。可选的，用户设备也可以根据CE level的变化切换到变化后CE level对应的寻呼载波。在这种情况下，基站在该次寻呼失败后，可以在下次寻呼周期内选择在该用户之前CE level增加或减少一个等级对应的载波上发送寻呼消息。
可选的，本公开实施例提供的寻呼装置还可包括：驻留单元，设置为当处于无线资源控制RRC空闲态时，在所述多载波小区的锚点载波或者非锚点载波上驻留。
可选的，本公开实施例提供的寻呼装置还可包括列表获取单元，设置为当在所述非锚点载波上驻留时，获取基于所述非锚点载波频点的同频小区列表和异频小区列表，以便在所述非锚点载波上为小区重选进行同频测量、异频测量。
可选的，所述列表获取单元可包括：第一接收模块，设置为接收第一系统消息，所述第一系统消息中包括基于所述锚点载波频点的同频小区列表和异频小区列表；转化模块，设置为将基于所述锚点载波频点的同频小区列表和异频小区列表转化为基于所述非锚点载波频点的同频小区列表和异频小区列表。
可选的，所述列表获取单元也可包括：第二接收模块，设置为接收第二系统消息，所述第二系统消息中包括相对于锚点载波频点和所有非锚点载波频点的同频小区列表、异频小区列表。
相应的，本公开的实施例还提供一种用户设备，包括前述实施例提供的任一种寻呼装置，因此也能实现相应的技术效果，前文已经进行了详细的说明，此处不再赘述。
相应的，本公开的实施例还提供一种寻呼系统，包括移动管理实体、基站以及本公开实施例提供的任一种用户设备，因此也能实现相应的技术效果，前文已经进行了详细的说明，此处不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变 体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
以上仅为本公开的优选实施例，并非因此限制本公开的专利范围，凡是利用本公开说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本公开的专利保护范围内。
工业实用性
如上所述，本公开实施例提供的一种寻呼方法、装置及系统、用户设备具有以下有益效果：能够在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，并且根据寻呼消息中携带的下行数据到达指示信息和/或系统消息变更指示信息，发起随机接入和/或接收变更的系统消息。这样，当用户设备被基站寻呼时，就可以充分利用多载波小区中的非锚点载波资源接收寻呼消息，大大扩充了寻呼容量也使寻呼负载更加平衡。

Claims (25)

  1. 一种寻呼方法，包括：
    在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，所述寻呼消息中携带下行数据到达指示信息和/或系统消息变更指示信息；
    根据所述寻呼消息发起随机接入，和/或接收变更的系统消息；
    其中，所述多载波小区包括一个锚点载波和多个非锚点载波。
  2. 根据权利要求1所述的方法，其中，所述寻呼消息携带所述下行数据到达指示信息；
    所述根据所述寻呼消息发起随机接入，和/或接收系统变更消息包括：
    确定所述第一非锚点载波是否配置了相应的随机接入资源；
    在所述第一非锚点载波配置了所述随机接入资源的情况下，从所述第一非锚点载波发起随机接入；
    在所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入。
  3. 根据权利要求2所述的方法，其中，在所述第一非锚点载波未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入包括：
    如果所述第一非锚点载波之外的其他非锚点载波上配置有所述随机接入资源，跳转到其中一个配置了所述随机接入资源的非锚点载波上发起随机接入；
    如果所述第一非锚点载波之外的其他非锚点载波上未配置所述随机接入资源，跳转到所述锚点载波上发起随机接入。
  4. 根据权利要求1所述的方法，其中，所述寻呼消息携带所述系统消息变更指示信息；
    所述根据所述寻呼消息发起随机接入，和/或接收变更的系统消息 包括：
    根据所述系统消息变更指示信息，从所述第一非锚点载波跳转到所述锚点载波；
    在所述锚点载波上接收变更的系统消息。
  5. 根据权利要求1所述的方法，其中，在多载波小区的第一非锚点载波上接收来自基站的寻呼消息前，所述方法还包括：
    根据寻呼载波选择策略，选择使用锚点载波或者非锚点载波接收来自所述基站的寻呼消息。
  6. 根据权利要求5所述的方法，其中，所述寻呼载波选择策略包括：
    在一段时间包含的多个寻呼周期中，将寻呼周期序号对N取模，所得的结果相同的寻呼周期使用相同的寻呼载波，其中N为大于1且小于所述寻呼周期序号的整数。
  7. 根据权利要求5所述的方法，其中，所述寻呼载波选择策略包括：
    根据基站配置的时域无线帧，对所述锚点载波以及各所述非锚点载波进行时分复用。
  8. 根据权利要求5所述的方法，其中，所述寻呼载波选择策略包括：基于基站配置的信号覆盖等级与寻呼载波的映射关系选择寻呼载波。
  9. 根据权利要求1至8中任一项所述的方法，其中，还包括：
    当处于无线资源控制RRC空闲态时，在所述多载波小区的锚点载波或者非锚点载波上驻留。
  10. 根据权利要求9所述的方法，其中，还包括：
    当在所述非锚点载波上驻留时，获取基于所述非锚点载波频点的同频小区列表和异频小区列表，以便在所述非锚点载波上为小区重选 进行同频测量、异频测量。
  11. 根据权利要求10所述的方法，其中，所述获取基于所述非锚点载波频点的同频小区列表和异频小区列表包括：
    接收第一系统消息，所述第一系统消息中包括基于所述锚点载波频点的同频小区列表和异频小区列表；
    将基于所述锚点载波频点的同频小区列表和异频小区列表转化为基于所述非锚点载波频点的同频小区列表和异频小区列表；
    或者
    接收第二系统消息，所述第二系统消息中包括相对于锚点载波频点和所有非锚点载波频点的同频小区列表、异频小区列表。
  12. 一种寻呼装置，包括：
    接收单元，设置为在多载波小区的第一非锚点载波上接收来自基站的寻呼消息，所述寻呼消息中携带下行数据到达指示信息和/或系统消息变更指示信息；
    处理单元，设置为根据所述接收单元接收的寻呼消息发起随机接入，和/或接收变更的系统消息；
    其中，所述多载波小区包括一个锚点载波和多个非锚点载波。
  13. 根据权利要求12所述的装置，其中，所述接收单元接收的寻呼消息携带所述下行数据到达指示信息；
    所述处理单元包括：
    确定模块，设置为确定所述第一非锚点载波是否配置了相应的随机接入资源；
    第一接入模块，设置为在所述确定模块确定所述第一非锚点载波配置了所述随机接入资源的情况下，从所述第一非锚点载波发起随机接入；
    第二接入模块，设置为在所述确定模块确定所述第一非锚点载波 未配置所述随机接入资源的情况下，跳转到其他非锚点载波或者锚点载波发起随机接入。
  14. 根据权利要求13所述的装置，其中，所述第二接入模块，具体设置为：
    如果所述第一非锚点载波之外的其他非锚点载波上配置有所述随机接入资源，跳转到其中一个配置了所述随机接入资源的非锚点载波上发起随机接入；
    如果所述第一非锚点载波之外的其他非锚点载波上未配置所述随机接入资源，跳转到所述锚点载波上发起随机接入。
  15. 根据权利要求12所述的装置，其中，所述接收单元接收的寻呼消息携带所述系统消息变更指示信息；
    所述处理单元包括：
    跳转模块，设置为根据所述系统消息变更指示信息，从所述第一非锚点载波跳转到所述锚点载波；
    系统消息接收模块，设置为在所述锚点载波上接收变更的系统消息。
  16. 根据权利要求12所述的装置，其中，还包括：选择单元，设置为在多载波小区的第一非锚点载波上接收来自基站的寻呼消息前，根据寻呼载波选择策略，选择使用锚点载波或者非锚点载波接收来自所述基站的寻呼消息。
  17. 根据权利要求16所述的装置，其中，所述寻呼载波选择策略包括：
    在一段时间包含的多个寻呼周期中，将寻呼周期序号对N取模，所得的结果相同的寻呼周期使用相同的寻呼载波，其中N为大于1且小于所述寻呼周期序号的整数。
  18. 根据权利要求16所述的装置，其中，所述寻呼载波选择策略 包括：
    根据基站配置的时域无线帧，对所述锚点载波以及各所述非锚点载波进行时分复用。
  19. 根据权利要求16所述的装置，其中，所述寻呼载波选择策略包括：基于基站配置的信号覆盖等级与寻呼载波的映射关系选择寻呼载波。
  20. 根据权利要求12至19中任一项所述的装置，其中，还包括：
    驻留单元，设置为当处于无线资源控制RRC空闲态时，在所述多载波小区的锚点载波或者非锚点载波上驻留。
  21. 根据权利要求20所述的装置，其中，还包括：
    列表获取单元，设置为当在所述非锚点载波上驻留时，获取基于所述非锚点载波频点的同频小区列表和异频小区列表，以便在所述非锚点载波上为小区重选进行同频测量、异频测量。
  22. 根据权利要求21所述的装置，其中，所述列表获取单元包括：
    第一接收模块，设置为接收第一系统消息，所述第一系统消息中包括基于所述锚点载波频点的同频小区列表和异频小区列表；
    转化模块，设置为将基于所述锚点载波频点的同频小区列表和异频小区列表转化为基于所述非锚点载波频点的同频小区列表和异频小区列表；
    或者
    第二接收模块，设置为接收第二系统消息，所述第二系统消息中包括相对于锚点载波频点和所有非锚点载波频点的同频小区列表、异频小区列表。
  23. 一种用户设备，包括权利要求12至22中任一项所述的寻呼装置。
  24. 一种寻呼系统，包括移动管理实体、基站以及权利要求23所 述的用户设备。
  25. 一种存储介质，所述存储介质包括存储的程序，其中，所述程序运行时执行权利要求1至11中任一项所述的方法。
PCT/CN2017/096466 2016-08-10 2017-08-08 一种寻呼方法、装置及系统、用户设备 WO2018028576A1 (zh)

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