WO2016095113A1 - Procédé de radiomessagerie, entité de gestion de mobilité, et station de base - Google Patents

Procédé de radiomessagerie, entité de gestion de mobilité, et station de base Download PDF

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Publication number
WO2016095113A1
WO2016095113A1 PCT/CN2014/094021 CN2014094021W WO2016095113A1 WO 2016095113 A1 WO2016095113 A1 WO 2016095113A1 CN 2014094021 W CN2014094021 W CN 2014094021W WO 2016095113 A1 WO2016095113 A1 WO 2016095113A1
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WIPO (PCT)
Prior art keywords
base station
management entity
mobility management
paging
coordinate information
Prior art date
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PCT/CN2014/094021
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English (en)
Chinese (zh)
Inventor
杨力
熊文
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华为技术有限公司
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Priority to CN201480083775.8A priority Critical patent/CN107005968A/zh
Priority to PCT/CN2014/094021 priority patent/WO2016095113A1/fr
Publication of WO2016095113A1 publication Critical patent/WO2016095113A1/fr

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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

Definitions

  • the present invention relates to the field of communications, and in particular, to a paging method, a mobility management entity, and a base station.
  • the terminal releases the wireless link and enters the idle state within a short time after the end of the data service transmission.
  • the network will use the paging technology to search all the TAs in the tracking area list (TA List) of the terminal. Call the terminal. After receiving the paging message sent to itself, the terminal responds to the paging, establishes communication with the network, and changes from the idle state to the connected state.
  • TA List tracking area list
  • MBB mobile broadband
  • LTE long term evolution
  • the range of the TA List is large, and the network needs to send a paging message in a large range when paging the UE, and the signaling amount of the single paging is
  • the 3G network is close to 600 times. Therefore, the paging load is heavy and the network resources are wasted.
  • Embodiments of the present invention provide a paging method, apparatus, and system, which can reduce paging load and save network resources.
  • a paging method comprising:
  • the mobility management entity acquires a paging rule of the paging terminal according to the service type of the data service, where the paging rule is used to indicate an initial paging range for paging the terminal;
  • the mobility management entity acquires a reference time in which the terminal resides in the current area, where a reference time in which the terminal resides in each different area is different;
  • the mobility management entity adjusts the paging rule according to the reference time and an actual time at which the terminal camps on the current area
  • the mobility management entity pages the terminal according to the adjusted paging rule.
  • the mobility management entity acquires a reference time that the terminal resides in a current area, including:
  • the mobility management entity receives coordinate information of the base station reported by each base station;
  • the mobility management entity determines a reference time for camping on an area in which the base station is located based on the coordinate information.
  • the mobility management entity determines, according to the coordinate information, a reference time for camping on an area where the base station is located, including:
  • the mobility management entity determines a coverage of the base station according to coordinate information
  • the mobility management entity determines a reference time for camping on an area in which the base station is located according to the coverage.
  • the mobility management entity determines the coverage of the base station according to the coordinate information, including:
  • the mobility management entity forms a virtual map according to the coordinate information, where the virtual map is composed of all base station coordinate information under the mobility management entity;
  • the mobility management entity determines a coverage of the base station according to a virtual map.
  • the mobility management entity receives coordinate information of the base station reported by each base station, including:
  • the mobility management entity receives an S1 setup request message sent by the base station, where the S1 setup request message carries coordinate information of the base station;
  • the mobility management entity receives a handover request message sent by the base station, where the handover request message carries coordinate information of the base station.
  • a paging method including:
  • the base station reports the coordinate information to the mobility management entity, so that the mobility management entity determines different camping reference times for each base station according to the coordinate information reported by each base station, and determines the paging according to the different camping reference time.
  • the base station receives a paging message sent by the mobility management entity, and the paging message is sent by the mobility management entity to the base station according to the paging rule.
  • the sending, by the base station, the coordinate information to the mobility management entity includes:
  • the base station sends a handover request message to the mobility management entity, where the handover request message carries coordinate information of the base station.
  • a mobility management entity including:
  • a storage time for storing a reference time in which the terminal resides in the current area, where the reference time of the terminal camping on each different area is different;
  • a processor configured to obtain a paging rule of the paging terminal according to a service type of the data service, where the paging rule is used to indicate an initial paging range for paging the terminal, and the processor is further configured to use the reference according to the reference
  • the paging rule is adjusted by the time and the actual time at which the terminal camps on the current zone, and the terminal is paged according to the adjusted paging rule.
  • the mobility management entity further includes a receiver, where the receiver is configured to receive coordinate information of the base station reported by each base station; The coordinate information determines a reference time at which the area in which the base station resides is located.
  • the processor is configured to determine, according to the coordinate information, a coverage of the base station, and determine, according to the coverage, where the base station resides The reference time of the area.
  • the processor is configured to form a virtual map according to the coordinate information, where the virtual map is composed of all base station coordinate information under the mobility management entity;
  • the processor is configured to determine a coverage of the base station according to a virtual map.
  • the receiver is configured to receive the base An S1 setup request message sent by the station, where the S1 setup request message carries coordinate information of the base station;
  • the receiver is configured to receive a path switch request message sent by the base station, where the path switch request message carries coordinate information of the base station;
  • the receiver is configured to receive a handover request message sent by the base station, where the handover request message carries coordinate information of the base station.
  • a base station including:
  • a transmitter configured to report coordinate information to the mobility management entity, so that the mobility management entity determines different resident reference times for each base station according to coordinate information reported by each base station, and according to the different resident reference Time to determine paging rules;
  • a receiver configured to receive a paging message sent by the mobility management entity, where the paging message is sent by the mobility management entity to the base station according to the paging rule.
  • the transmitter is configured to send an S1 setup request message to the mobility management entity, where the S1 setup request message carries coordinate information of the base station;
  • the transmitter is configured to send a path switch request message to the mobility management entity, where the path switch request message carries coordinate information of the base station;
  • the transmitter is configured to send a handover request message to the mobility management entity, where the handover request message carries coordinate information of the base station.
  • the present invention provides a paging method, a mobility management entity, and a base station.
  • the mobility management entity acquires a paging rule of a paging terminal according to a service type of the data service, and the paging rule is used to indicate paging of the initial paging of the terminal.
  • the mobility management entity obtains a reference time for the terminal to camp on the current area by receiving the report of the base station, where the reference time of the terminal camping on each different area is different; the mobility management entity is configured according to the
  • the paging rule is adjusted according to the reference time and the actual time at which the terminal camps on the current area, and the terminal is paged according to the adjusted paging rule. Since the MME determines different reference times for each base station/TA to camp, the number of eNBs involved in paging can be accurately controlled, and the paging load is reduced.
  • FIG. 1 is a schematic diagram of a paging method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of adjusting a paging range according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a paging method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a paging method according to an embodiment of the present invention.
  • 5A to 5D are schematic diagrams of receiving base station coordinate information according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing a mobility management entity according to an embodiment of the present invention.
  • FIG. 7 is a block diagram showing a base station according to an embodiment of the present invention.
  • FIG. 8 is a block schematic diagram of a communication system provided in accordance with an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a paging method according to an embodiment of the present invention.
  • the method shown in FIG. 1 can be used by a terminal (also referred to as user equipment, UE), an evolved NodeB (eNB), a mobility management entity (MME), a serving gateway (S-serving gateway, S- The interaction between the GW) and the packet data network gateway (PDN GW) enables accurate paging of the UE.
  • a terminal also referred to as user equipment, UE
  • eNB evolved NodeB
  • MME mobility management entity
  • S-serving gateway S- The interaction between the GW
  • PDN GW packet data network gateway
  • the radio link is released shortly after the end of the data service transmission, and the UE enters an idle state.
  • the network side needs to send downlink data or downlink signaling to the UE in the idle state, the paging process is triggered.
  • the method includes:
  • the PDN GW sends downlink data to the S-GW.
  • the S-GW sends a downlink data notification message to the MME.
  • the downlink data notification message may carry information indicating the UE user type and/or information indicating the service type of the downlink data service.
  • the user type information of the UE includes, but is not limited to, an international mobile subscription identity (IMSI) or a mobile station international ISDN number (MSISDN).
  • the service type information of the data service includes but is not limited to an access point name (APN), a QoS class identifier (QCI), an address resolution protocol (ARP), or a circuit domain exchange fallback ( Circuit switched fallback, CSFB).
  • the MME After receiving the downlink data notification message sent by the S-GW, the MME sends a downlink data notification ack message to the SGW.
  • the MME determines a paging rule for the paging.
  • the MME first determines the paging policy of the current paging according to the user type information.
  • Paging strategies include, but are not limited to, standard paging or precision paging. For example, when the user type information indicates that the UE belongs to a VIP user, standard paging is adopted, otherwise, accurate paging is adopted.
  • the MME sends paging signaling to all eNBs in the TA List where the UE is located according to the information of the UE in the downlink data notification message.
  • the MME determines that the paging uses accurate paging according to the user type information, the MME obtains the paging rule of the accurate paging according to the service type information.
  • the paging rule is used to indicate the initial paging range of the paging UE.
  • the initial paging range includes the following granularity: the last base station (last eNB) where the UE camps, the last base station where the UE camps, and its neighboring base stations (last eNBs, last eNBs), the UE station.
  • the last TA eNBs in last TA, referred to as last TA
  • the TA list eNBs in last TA List, referred to as last TA list
  • the initial paging range is set to be the last eNB; and the service type information indicates that the data service is the LTE network.
  • VoIP voice over LTE
  • the MME After the MME determines the paging rule for the paging, that is, after determining the initial paging range, the MME adjusts the paging rule according to the reference time in which the UE resides in the current region and the actual time in which the UE resides in the current region.
  • the reference time for camping on the current region includes a reference time to camp on the current eNB and/or a reference time to camp on the current TA;
  • the actual time to camp on the current region includes the actual time and/or resident of the current eNB camping on The actual time of the current TA.
  • the order of the eNBs->last TA->last TA List filters the paging rules, that is, the MME gradually expands the initial paging range according to this, thereby obtaining the adjusted initial paging range, as shown in FIG. 2.
  • the ranges in Figure 2 are last eNB, last eNBs, last TA, and last TA List, respectively.
  • the MME needs to configure different reference times for each area in advance. That is to say, the MME needs to set different reference times for different areas of different locations in advance, as shown in Table 1.
  • the MMEs in the MME configure different reference times for eNBs in different areas in advance, and configure different reference times for TAs in different areas. Configuring different reference times for eNBs of different regions may be pre-stored in the MME in the form of a table. How the MME configures reference times for different regions will be further described in conjunction with Figures 2 through 5D.
  • the MME may determine, according to the downlink data notification message, the location of the eNB involved in the paging, and then determine the reference time of camping the eNB and the reference time of the resident TA by means of table lookup. For example, when the eNB is within one ring, the reference time for camping on the eNB and the reference time for camping TA are 580s and 900s, respectively. Since the actual time that the UE camps on the current eNB is less than the reference time for camping on the eNB, and the actual time of camping on the current TA is less than the reference time for camping the TA, indicating that the UE may not be under the coverage of the eNB, but Still under the TA coverage. Therefore, the MME will skip the paging range of "last eNB" in the paging rule and jump directly to start paging from the next level "last eNBs".
  • the MME further compares the absolute values of the following two differences: a reference time of camping the eNB and a difference between the actual time of the current eNB, and a reference time and resident of the TA.
  • the difference in the actual time of the current TA Jump if the absolute value of the difference between the reference time of the eNB and the actual time of the current eNB is greater than the absolute value of the difference between the reference time of the TA and the actual time of the current TA To start paging from "last eNBs". If the absolute value of the difference between the reference time of the eNB and the actual time of the current eNB is less than the absolute value of the difference between the reference time of the TA and the actual time of the current TA, then skip further.
  • the paging range of last eNBs jumps directly to the paging starting from the next level "last TA". For example, when the eNB of the current paging is within one ring, the MME may directly page the UE from the range of the last TA, if the UE is not paged within the range of the last TA, and then in the range of the last TA list The UE is paged internally, that is, the UE is accurately paged in the order of last TA->last TA List.
  • the MME can directly page the UE from the range of the last eNBs. If the UE is not paged within the range of the last eNBs, the UE is paged within the range of the last TA. If the UE is not paged in the range of the last TA, the UE is paged within the range of the last TA list, that is, the UE is accurately paged in the order of last eNBs->last TA->last TA List.
  • the reference time for camping on the eNB and the reference time for camping TA are 190s and 450s, respectively. Due to UE resident The actual time of the current eNB is greater than the reference time for camping on the eNB, indicating that the UE is still under the coverage of the eNB. Therefore, the MME performs accurate paging on the UE in the order of last eNB->last eNBs->last TA->last TA List.
  • the MME initiates paging to the UE according to the determined paging policy.
  • the MME determines different reference times for each base station/TA to camp, the number of eNBs involved in paging can be accurately controlled, and the paging load is reduced.
  • the initial paging range is large in the urban area; in order to reduce the number of paging signaling in the suburb without affecting the delay, the initial paging range is small.
  • the MME configures a separate paging policy for each UE on each eNB, thereby achieving a smaller paging delay and less signaling, thereby reducing the paging load and saving network resources. .
  • FIG. 3 is a flowchart of a paging method according to an embodiment of the present invention. The flow in FIG. 3 is performed by the MME side. Figure 3 will be described in conjunction with Figures 1 and 2.
  • the MME obtains a paging rule for paging the UE according to the service type of the data service.
  • the paging rule is used to indicate the initial paging range for paging the UE.
  • the MME acquires a reference time that the UE resides in the current area.
  • the reference time for the UE to camp on each different area is different.
  • the MME may obtain a reference time for the UE to camp on the current eNB and/or a reference time for camping on the current TA.
  • the eNB has the coordinate information (eNB coordinates) of the eNB, that is, the latitude and longitude information, and the eNB can report the coordinate information of the eNB to the MME in multiple manners. How the eNB reports its coordinate information to the MME will be further described in conjunction with Figures 5A-5D.
  • the MME determines the coverage of each eNB according to the coordinate information reported by the eNB, so as to determine the reference time for the UE to camp on the current eNB and/or the reference time for camping on the current TA according to the coverage of each eNB.
  • the MME may first form a virtual map according to the coordinate information reported by the eNB.
  • the virtual map is composed of all eNB coordinate information under the MME.
  • For an eNB its coordinates and the distance from the surrounding eNBs can be obtained therefrom to determine the coverage of each eNB.
  • the virtual map can be saved in the form of a table in the MME. Therefore, the MME may determine the coverage of each eNB according to the location of each eNB in the virtual map, and determine a different reference time of the current eNB for each eNB according to the coverage of each eNB. And/or the reference time of the current TA. For example, the MME may determine different reference times by counting the UE camp time reported in the coverage within a certain period of time.
  • the MME adjusts the paging rule according to the reference time and the actual time that the UE camps on the current area. For details on how the MME adjusts the paging rule, refer to the description of S104, and details are not described herein again.
  • the MME may determine, by using the following manner, the actual time that the UE in the idle state camps on the current eNB: when performing the tracking area update (TAU) process, the eNB sends a TAU request message to the MME, where the request message is sent.
  • TAU tracking area update
  • the MME calculates a time difference between the UE performing cell reselection twice according to the information of the UE cell reselection in the TAU request message, and uses the time difference as the actual time that the UE camps on the current eNB.
  • the MME pages the UE according to the adjusted paging rule.
  • the MME determines different reference times for each base station/TA to camp, the number of eNBs involved in paging can be accurately controlled, and the paging load is reduced.
  • the initial paging range is large in the urban area; in order to reduce the number of paging signaling in the suburb without affecting the delay, the initial paging range is small.
  • the MME configures a separate paging policy for each UE on each eNB, thereby achieving a smaller paging delay and less signaling, thereby reducing the paging load and saving network resources. .
  • FIG. 4 is a flowchart of a paging method according to an embodiment of the present invention. The flow in FIG. 4 is performed by the eNB side. Figure 4 will be described in conjunction with Figures 1 through 3.
  • the eNB reports the coordinate information of the eNB to the MME, so that the MME determines different camping reference times for each eNB according to the coordinate information reported by each eNB, and determines a paging rule for accurate paging according to different camping reference times. . How the eNB reports its coordinate information to the MME will be further described in conjunction with Figures 5A-5D.
  • the eNB receives a paging message sent by the MME, where the paging message is sent by the MME to the eNB according to the paging rule.
  • 5A to 5D show an example in which four types of eNBs report coordinate information to an MME.
  • the process in Figure 5A applies to the S1 setup process.
  • the eNB When the eNB is reset or powered up, The eNB will perform the S1 setup process.
  • the eNB carries the coordinate information of the eNB to the MME by carrying the coordinate information of the eNB (as shown in FIG. 5A) in the S1 setup request message sent to the MME.
  • the MME After receiving the S1 setup request message, the MME returns an S1 setup response message to the eNB.
  • FIG. 5B to FIG. 5D is applicable to a process of handing over a UE from a source eNB to a target eNB.
  • 5B and FIG. 5C are applicable to the X2 port-based handover procedure, and FIG. 5D is applicable to the S1 port-based handover procedure. More specifically, FIG. 5B is applicable to an X2-port based handover procedure of a serving gateway (S-GW) change, and FIG. 5C is applicable to an S2-GW unchanged X2-port based handover procedure.
  • S-GW serving gateway
  • the target eNB after the handover is performed between the source eNB and the target eNB, the target eNB sends a path switch request message to the MME, where the path switch request carries the coordinate information of the target eNB.
  • the MME thus receives the coordinate information reported by the eNB.
  • the source eNB before the handover is performed between the source eNB and the target eNB, the source eNB sends a handover request message to the source MME, where the handover request message carries coordinate information of the source eNB.
  • the MME thus receives the coordinate information reported by the eNB.
  • FIG. 6 is a block diagram showing an MME 600 according to an embodiment of the present invention.
  • the MME 600 of Figure 6 can be used to perform the functions of the MME of Figures 1, 3, 5A-5D.
  • the MME 600 includes a memory 602 and a processor 604.
  • the memory 602 is configured to store a reference time at which the terminal resides in the current area, where the reference time at which the terminal resides in each different area is different.
  • the processor 604 is configured to obtain a paging rule of the paging terminal according to the service type of the data service, where the paging rule is used to indicate an initial paging range for paging the terminal, and the processor is further configured to use the reference according to the reference
  • the paging rule is adjusted by the time and the actual time at which the terminal camps on the current zone, and the terminal is paged according to the adjusted paging rule.
  • the MME determines different reference times for each base station/TA to camp, the number of eNBs involved in paging can be accurately controlled, and the paging load is reduced.
  • the MME further includes a receiver 606.
  • the receiver 606 is configured to receive coordinate information of the base station reported by each base station.
  • the processor 604 is configured to determine, according to the coordinate information, a reference time for camping on an area where the base station is located.
  • the processor 604 is configured to determine a coverage of the base station according to the coordinate information, and determine, according to the coverage, a reference time of an area where the base station is located. More specifically, the processor 604 is configured to form a virtual map according to the coordinate information, where the virtual map is composed of all eNB coordinate information under the MME. The processor 604 is configured to determine a coverage of the base station according to the virtual map.
  • the receiver 606 can receive the coordinate information of the base station reported by each base station by using any of the following methods:
  • the receiver 606 is configured to receive an S1 setup request message sent by the base station, where the S1 setup request message carries coordinate information of the base station; or
  • the receiver 606 is configured to receive a path switch request message sent by the base station, where the path switch request message carries coordinate information of the base station;
  • the receiver 606 is configured to receive a handover request message sent by the base station, where the handover request message carries coordinate information of the base station.
  • FIG. 7 is a block diagram showing a base station according to an embodiment of the present invention.
  • the base station 700 of FIG. 7 can be used to perform the functions of the eNBs in FIGS. 1, 4, and 5A through 5D.
  • base station 700 includes a transmitter 702 and a receiver 704.
  • the transmitter 702 is configured to report coordinate information to the mobility management entity, so that the mobility management entity determines different resident reference times for each eNB according to the coordinate information reported by each eNB, and according to the different resident reference. Time determines the paging rules.
  • the receiver 704 is configured to receive a paging message sent by the mobility management entity, where the paging message is sent by the mobility management entity to the base station according to the paging rule.
  • the transmitter 702 can report the coordinate information to the mobility management entity by any of the following methods:
  • the sender 702 is configured to send, to the mobility management entity, an S1 setup request message, where the S1 setup request message carries coordinate information of the base station; or
  • the transmitter 702 is configured to send a path switch request message to the mobility management entity, where the path switch request message carries coordinate information of the base station;
  • the transmitter 702 is configured to send a handover request message to the mobility management entity, where The handover request message carries coordinate information of the base station.
  • FIG. 8 is a block schematic diagram of a communication system provided in accordance with an embodiment of the present invention.
  • the MME 600 in FIG. 6 and the base station 700 in FIG. 7 are included, and details are not described herein again.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of cells is only a logical function division.
  • multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

La présente invention concerne un procédé de radiomessagerie, une entité de gestion de mobilité, et une station de base. Le procédé comprend les étapes suivantes : acquérir une règle de radiomessagerie pour effectuer la radiomessagerie d'un terminal selon le type de service d'un service de données ; acquérir un instant de référence auquel le terminal est domicilié dans une région actuelle, les instants de référence auxquels le terminal est domicilié dans différentes régions étant différents ; ajuster la règle de radiomessagerie en fonction de l'instant de référence et de l'instant actuel auquel le terminal est domicilié dans la région actuelle ; et effectuer la radiomessagerie du terminal en fonction de la règle de radiomessagerie ajustée. Grâce à la présente invention, le nombre d'eNB impliqués dans la radiomessagerie peut être géré précisément, et la charge de radiomessagerie peut être réduite.
PCT/CN2014/094021 2014-12-17 2014-12-17 Procédé de radiomessagerie, entité de gestion de mobilité, et station de base WO2016095113A1 (fr)

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CN201480083775.8A CN107005968A (zh) 2014-12-17 2014-12-17 一种寻呼方法、移动性管理实体及基站
PCT/CN2014/094021 WO2016095113A1 (fr) 2014-12-17 2014-12-17 Procédé de radiomessagerie, entité de gestion de mobilité, et station de base

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