WO2015074271A1 - 一种异制式网络中的通信方法、接入网设备及ue - Google Patents

一种异制式网络中的通信方法、接入网设备及ue Download PDF

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Publication number
WO2015074271A1
WO2015074271A1 PCT/CN2013/087769 CN2013087769W WO2015074271A1 WO 2015074271 A1 WO2015074271 A1 WO 2015074271A1 CN 2013087769 W CN2013087769 W CN 2013087769W WO 2015074271 A1 WO2015074271 A1 WO 2015074271A1
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WIPO (PCT)
Prior art keywords
source
access network
network
network device
load
Prior art date
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PCT/CN2013/087769
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English (en)
French (fr)
Inventor
黎晖
Original Assignee
华为技术有限公司
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
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/087769 priority Critical patent/WO2015074271A1/zh
Priority to KR1020167016176A priority patent/KR101737285B1/ko
Priority to CN201380002926.8A priority patent/CN103814591B/zh
Priority to EP13897821.8A priority patent/EP3065425B1/en
Priority to JP2016554768A priority patent/JP6314243B2/ja
Publication of WO2015074271A1 publication Critical patent/WO2015074271A1/zh
Priority to US15/163,449 priority patent/US9854479B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/06—Access restriction performed under specific conditions based on traffic conditions
    • 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
    • H04W28/09—Management thereof
    • H04W28/0925—Management thereof using policies
    • H04W28/0942—Management thereof using policies based on measured or predicted load of entities- or links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present invention relates to the field of communications, and in particular, to a communication method, an access network device, and a UE in a heterogeneous network.
  • GSM Global System for mobile communications
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • UE user equipment
  • the connected UE is the currently measurable load
  • the idle (IDLE) UE is a potential load
  • the IDLE state UE may initiate a service with a large amount of data in the near future.
  • the load transfer algorithm is divided into a connection state algorithm and an IDLE state algorithm, and the transfer behavior of the IDLE state UE is mainly controlled by the cell broadcast message.
  • the process of the IDLE state load transfer in the prior art is specifically as follows:
  • the network side with a higher traffic load changes the system message broadcasted by the own network, and the IDLE state cell reselection priority of the own frequency is lowered, and the detected same coverage is performed.
  • the IDLE state cell reselection priority of other standard networks with lower load is increased to allow more UEs to reselect to other standard networks.
  • the main problem in the IDLE state load transfer process in the prior art is that the reselection priorities between different standard networks cannot be coordinated.
  • the frequency reselection priorities are the same in each standard network.
  • the single system network unilaterally adjusts the priority, the broadcast message content between the standards is not the same, and the load transfer effect is poor.
  • the LTE load is too high, the LTE broadcast UMTS frequency priority is high, and the UE reselects to the UMTS.
  • the UMTS network system broadcast message content may be UMTS frequency priority is low, then the UE is relatively easy. Reselecting back to LTE, causing ping pong re-election.
  • the embodiments of the present invention provide a communication method, an access network device, and a UE in a heterogeneous network, which can ensure that broadcast messages are consistent between different standard networks, and avoid ping-pong reselection of the UE.
  • a first aspect of the embodiments of the present invention provides a communication method in a heterogeneous network, where the heterogeneous network includes a source network of a first communication system and a target network of a second communication system, and the method
  • the method For the process of reselecting the user equipment UE in the source network to the target network, the method includes: the source access network device generates a temporary priority list, where the temporary priority list includes the frequency and target of the source network. a frequency of the network, a priority of a frequency of the source network, and a priority of a frequency of the target network, and the source access network device is a device that accesses the UE to the source network;
  • the source access network device sends the temporary priority list to a target access network device, where the target access network device is a device that accesses the UE to a target network;
  • the source access network device sends the temporary priority list to the UE.
  • the priority of the frequency of the source network in the temporary priority list is lower than the frequency of the target network. priority.
  • the source access network device generates a temporary priority list. Previously, it also included:
  • the source access network device detects a load of the serving cell, where the serving cell is a cell that the UE currently resides in the source network;
  • the source access network device detects a load of the source network
  • the step of generating a temporary priority list is triggered when the load of the source network is greater than the second load threshold.
  • the method for detecting the load of the source network by the source access network device is specifically:
  • the source access network device infers a load of the source network according to the detected load of the serving cell
  • the source access network device obtains the load of the cells at all frequency points in the source network by using the master control node, and accumulates the load of the cells at all frequency points in the source network.
  • the trigger generation is performed.
  • the source access network device initiates a load information acquisition request to the other heterogeneous network; the source access network device receives the load information fed back by the other heterogeneous network, and searches for the load to be less than the third load threshold according to the load information.
  • the heterogeneous network uses the heterogeneous network whose load is less than the third load threshold as the target network.
  • the source access network device uses the temporary priority
  • the method for sending the list to the target access network device is specifically:
  • the source access network device sends the temporary priority list to the master control node to send the temporary priority list to the target access network device by using the master control node.
  • the source access network device sends the temporary priority list to the UE After that, it also includes:
  • the source access network device continues to detect a load of the source network
  • the source access network device When the source access network device detects that the load of the source network is less than the second load threshold, the source access network device sends the first information to the target access network device by using the RIM process, The first information is used to indicate that the target access network device sends the original priority list to the UE in the same manner as the source access network device; or
  • the source access network device When the source access network device detects that the load of the source network is less than the second load threshold, the source access network device sends second information to the master control node to utilize the master control node. Transmitting the second information to the target access network device, where the second information is used to indicate that the target access network device sends the original priority to the UE in the same manner as the source access network device Level list.
  • a second aspect of the embodiments of the present invention provides a communication method in another heterogeneous network, where the heterogeneous network includes a source network of a first communication system and a target network of a second communication system, and the method is applicable to In the process of reselecting the user equipment UE in the source network to the target network, the method includes: the target access network device receiving the temporary priority list sent by the source access network device, where the temporary priority list includes the source network a frequency point, a frequency point of the target network, a priority of a frequency point of the source network, and a priority of a frequency point of the target network, and the source access network device is configured to access the UE to the source network
  • the target access network device is a device that accesses the UE to a target network; the target access network device sends the temporary priority list to the UE.
  • the priority of the frequency of the source network in the temporary priority list is lower than the priority of the frequency of the target network. level.
  • a third aspect of the embodiments of the present invention provides a communication method in another heterogeneous network, where the heterogeneous network includes a source network of a first communication system and a target network of a second communication system, and the method is applicable to In the process of reselecting the user equipment UE in the source network to the target network, the method includes: the UE receiving a temporary priority list sent by the source access network device, where the temporary priority list includes the frequency of the source network a point, a frequency of the target network, a priority of the frequency of the source network, and a priority of the frequency of the target network, the source access network device being a device that accesses the UE to the source network; the UE Performing network reselection according to the priority of the intermediate frequency list in the temporary priority list; receiving, when the UE reselects the access to the target network, receiving the target access network device from the source access network device And sending the temporary priority list to the UE, where the target access network device is a device that accesse
  • the priority of the frequency of the source network in the temporary priority list is lower than the frequency of the target network. priority.
  • a fourth aspect of the embodiments of the present invention provides an access network device, where the access network device is a device that accesses a user equipment UE to a source network, and includes:
  • a priority list generating unit configured to generate a temporary priority list, where the temporary priority list includes a frequency point of the source network, a frequency point of the target network, a priority of a frequency point of the source network, and a frequency point of the target network Priority
  • a sending unit configured to send the temporary priority list to a target access network device, where the target access network device is a device that accesses the UE to a target network, and sends the temporary priority to the UE Level list.
  • the access network device further includes:
  • a load detection unit configured to detect a load of a serving cell, where the serving cell is a cell that the UE currently camps on in the source network, and when the load of the serving cell is greater than a first load threshold, detecting the source network
  • the load when the load of the source network is greater than the second load threshold, triggers the priority list generation unit to generate a temporary priority list.
  • the method for detecting the load of the source network by the load detecting unit is specifically:
  • the load detecting unit estimates a load of the source network according to the detected load of the serving cell.
  • the load detecting unit acquires the load of the cells of all the frequency points in the source network by using the master control node, and accumulates the load of the cells of all the frequency points in the source network.
  • the load detecting unit detects that the load of the source network is greater than a second load threshold. Then, before triggering the priority list generating unit to generate the temporary priority list, it is further used to:
  • Initiating a load information acquisition request to the other heterogeneous network receiving the load information fed back by the other heterogeneous network, and searching for the heterogeneous network whose load is less than the third load threshold according to the load information, and the load is smaller than the third load.
  • a heterogeneous network of thresholds is used as the target network.
  • the sending unit sends the temporary priority list to the The method for the target access network device is specifically as follows:
  • the sending unit sends the temporary priority list to the master control node to send the temporary priority list to the target access network device by using the master control node.
  • the load detecting unit is further configured to: After the sending unit sends the temporary priority list to the UE, continue to detect the load of the source network;
  • the sending unit is further configured to:
  • the load detecting unit detects that the load of the source network is smaller than the second load threshold, sending, by using the RIM process, first information to the target access network device, where the first information is used to indicate Transmitting, by the target access network device, the original priority list to the UE, like the source access network device; or
  • the load detecting unit detects that the load of the source network is less than the second load threshold, sending second information to the master control node, to send the second information to the The target access network device, the second information is used to indicate that the target access network device sends the original priority list to the UE in the same manner as the source access network device.
  • a fifth aspect of the embodiments of the present invention provides another access network device, where the access network device is a device that accesses a user equipment UE to a target network, where the access network device includes:
  • a receiving unit configured to receive a temporary priority list sent by the source access network device, where the temporary priority list includes a frequency point of the source network, a frequency point of the target network, a priority of the frequency of the source network, and a target a priority of a frequency point of the network, and the source access network device is a device that accesses the UE to a source network;
  • a sending unit configured to send the temporary priority list to the UE.
  • the priority of the frequency of the source network in the temporary priority list is lower than the priority of the frequency of the target network. level.
  • a sixth aspect of the embodiments of the present invention provides a user equipment UE, including:
  • a receiving unit configured to receive a temporary priority list sent by the source access network device, where the temporary priority list includes a frequency point of the source network, a frequency point of the target network, a priority of the frequency of the source network, and a target a priority of a frequency point of the network, where the source access network device is a device that accesses the UE to a source network;
  • a network reselecting unit configured to perform network reselection according to a priority of a frequency point in the temporary priority list
  • the receiving unit is further configured to: Receiving, when the network reselection unit reselects the target network, receiving the temporary priority list received by the target access network device from the source access network device and sent to the UE, where
  • the target access network device is a device that accesses the UE to a target network.
  • the priority of the frequency of the source network in the temporary priority list is lower than the priority of the frequency of the target network. level.
  • a seventh aspect of the embodiments of the present invention provides another access network device, where the access network device is a device that accesses a user equipment UE to a source network, where the access network device includes:
  • a processor configured to generate a temporary priority list, where the temporary priority list includes a frequency point of the source network, a frequency point of the target network, a priority of the frequency point of the source network, and a priority of the frequency of the target network ;
  • a transmitter configured to send the temporary priority list to a target access network device, where the target access network device is a device that accesses the UE to a target network, and sends the temporary priority to the UE Level list.
  • the priority of the frequency of the source network in the temporary priority list is lower than the priority of the frequency of the target network. level.
  • the processor is further configured to:
  • the serving cell is a cell in which the UE currently resides in the source network, and when the load of the serving cell is greater than a first load threshold, detecting a load of the source network, when When the load of the source network is greater than the second load threshold, the generating unit generates a temporary priority list.
  • the method for detecting, by the processor, the load of the source network is as follows: Estimating the load of the source network according to the detected load of the serving cell; or
  • the processor obtains the load of the cells of all the frequency points in the source network by using the master control node, and accumulates the load of the cells of all the frequency points in the source network.
  • the processor is further configured to: before generating the temporary priority list:
  • Initiating a load information acquisition request to the other heterogeneous network receiving the load information fed back by the other heterogeneous network, and searching for the heterogeneous network whose load is less than the third load threshold according to the load information, and the load is smaller than the third load.
  • a heterogeneous network of thresholds is used as the target network.
  • the transmitter sends the temporary priority list to the target access network device.
  • the method for the target access network device is specifically as follows:
  • the transmitter sends the temporary priority list to the master control node to send the temporary priority list to the target access network device by using the master control node.
  • the processor is further configured to:
  • the transmitter After the transmitter sends the temporary priority list to the UE, continuing to detect a load of the source network;
  • the transmitter is also used to:
  • the processor detects that the load of the source network is less than the second load threshold, sending, by using the RIM process, first information to the target access network device, where the first information is used to indicate the And the target access network device sends the original priority list to the UE in the same manner as the source access network device;
  • the processor detects that the load of the source network is less than the second load threshold, sending second information to the master control node, to send the second information to the The target access network device, the second information is used to indicate that the target access network device sends the original priority list to the UE in the same manner as the source access network device.
  • An eighth aspect of the embodiments of the present invention provides another access network device, where the access network device is a device that accesses a user equipment UE to a target network, where the access network device includes:
  • a receiver configured to receive a temporary priority list sent by the source access network device, where the temporary priority list includes a frequency point of the source network, a frequency point of the target network, a priority of the frequency of the source network, and a priority of a frequency point of the target network, and the source access network device is a device that accesses the UE to the source network;
  • a transmitter configured to send the temporary priority list to the UE.
  • the priority of the frequency of the source network in the temporary priority list is lower than the priority of the frequency of the target network. level.
  • a ninth aspect of the embodiment of the present invention provides another user equipment UE, including:
  • a receiver configured to receive a temporary priority list sent by the source access network device, where the temporary priority list includes a frequency of the source network, a frequency of the target network, a priority of the frequency of the source network, and a target a priority of a frequency point of the network, where the source access network device is a device that accesses the UE to a source network;
  • a processor configured to perform network reselection according to a priority of a frequency point in the temporary priority list; the receiver is further configured to:
  • the network access device is a device that accesses the UE to the target network.
  • the priority of the frequency of the source network in the temporary priority list is lower than the frequency of the target network. priority.
  • the embodiments of the present invention have the following advantages:
  • the source access network device generates a temporary priority list, where the source access network device is a device that accesses the UE to the source network, and the source access network device sends the temporary priority list to the target access network device.
  • the target access network device is a device that accesses the UE to the target network; the source access network device sends a temporary priority list to the UE.
  • the source access network device sends the generated temporary priority list to the target access network device, so that both the source access network device and the target access network device can send the temporary priority list to the UE. That is to say, the broadcast messages between different standard networks are consistent.
  • FIG. 1 is a schematic diagram of an embodiment of a communication method in a heterogeneous network according to the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a communication method in a heterogeneous network according to the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of a communication method in a heterogeneous network according to the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of a communication method in a heterogeneous network according to the present invention.
  • FIG. 5 is a schematic diagram of an embodiment of an access network device according to the present invention.
  • FIG. 6 is a schematic diagram of another embodiment of an access network device according to the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of an access network device according to the present invention.
  • FIG. 8 is a schematic diagram of an embodiment of a user equipment according to the present invention.
  • FIG. 9 is a schematic diagram of another embodiment of an access network device according to the present invention.
  • FIG. 10 is a schematic diagram of another embodiment of an access network device according to the present invention.
  • FIG. 11 is a schematic diagram of another embodiment of a user equipment according to an embodiment of the present invention.
  • the embodiments of the present invention provide a communication method, an access network device, and a user equipment in a heterogeneous network, which can ensure that broadcast messages are consistent between different standard networks, and avoid ping-pong reselection of the UE.
  • FIG. 1 illustrates an embodiment of a communication method in a heterogeneous network according to the present invention.
  • This embodiment describes a communication method in a heterogeneous network from the perspective of a source access network device.
  • the methods include:
  • the source access network device generates a temporary priority list.
  • the heterogeneous network in this embodiment includes the source network of the first communication system and the target network of the second communication system.
  • the method in this embodiment is applicable to the process of reselecting the UE in the source network to the target network.
  • the source access network device is a device that accesses the UE to the source network.
  • the source access network device generates a temporary priority list, where the temporary priority list includes the frequency of the source network, the frequency of the target network, the priority of the frequency of the source network, and the priority of the frequency of the target network.
  • the source access network device sends the temporary priority list to the target access network device.
  • the target access network device is a device that accesses the UE to the target network, and the source access network device sends a generated temporary priority list to the target access network device.
  • the source access network device sends a temporary priority list to the UE.
  • the temporary priority list is sent to the UE, so that the UE performs network reselection according to the temporary priority list, and specifically sends the temporary priority list to the UE. Can be broadcast.
  • the target access network device After the UE reselects to the target network, the target access network device sends the temporary priority list received from the source access network device to the UE, so whether the UE is in the source network or the target network, the received ones are the same. Webcast message.
  • the source access network device and the target access network device in this embodiment include, but are not limited to, a base station (Node B ), an evolved base station (evolved Node B (eNB), a home base station (Home Node B, HNB) / ( Home eNode B , HeNB ), radio network controller (RNC), base station controller (BSC), base transceiver transceiver (BTS), and source access network equipment and target access
  • the network devices may be the same devices, such as different baseband boards in the same base station, or different processors on the same baseband board, or different devices.
  • the source access network device sends the generated temporary priority list to the target access network device, so that both the source access network device and the target access network device can send the temporary priority list to the UE, that is, It ensures that the broadcast messages between different standard networks are consistent. Therefore, no matter which network the UE is in, the frequency list with the highest priority can be selected from the priority list of the network broadcast, so that the cell corresponding to the frequency point is reselected to avoid the ping-pong reselection.
  • the method is described. Referring to FIG. 2, another embodiment of the communication method in the heterogeneous network of the present invention includes: 201.
  • the source access network device detects a load of the serving cell.
  • the UE In the scenario of the heterogeneous network networking, after the UE is powered on, it registers with a certain network. After the registration is successful, it resides in a certain cell under the coverage of the network.
  • the network where the UE is currently located is called the source network, and the UE is called the source network.
  • a cell that resides in the source network is called a serving cell.
  • the source access network device detects the load of the serving cell by detecting the resource utilization of the serving cell or the number of users accessing the serving cell.
  • An access network device is a device that connects a UE to a source network.
  • the source access network device When detecting that the load of the serving cell is greater than the first load threshold, the source access network device detects a load of the source network.
  • the source access network device may preset a load threshold for the serving cell according to the load capacity of the serving cell, that is, the first load threshold. When detecting that the load of the serving cell is greater than the first load threshold, the source access network device continues to detect the source network. Load.
  • the source access network device When the load of the serving cell is too high, the source access network device needs to further detect the load of other cells in the source network. If the load of other cells in the source network is not high, the UE may be transferred to other cells in the source network. If the load of other cells in the source network is too high, the source access network device needs to find a target network that can perform load transfer. .
  • the load of the source network may be based on the serving cell detected by the source access network device.
  • the load situation is speculated. If the source network is an inter-frequency network, the load of the source network needs to be determined according to the load of the cells at each frequency point in the source network. At this time, the source access network device can obtain the cells of each frequency point in the source network through the master control node. The load condition then accumulates the load of the cells at each frequency point in the source network, which is the load of the source network.
  • the source access network device searches for the target network of the load transfer
  • the source access network device may preset a second load threshold according to the network capacity of the source network. When the source access network device detects that the load of the source network is greater than the second load threshold, all the cells of the source network have been reached. The load limit can no longer serve new UEs.
  • the load of the source network When the load of the source network is greater than the second load threshold, it indicates that the serving cell of the UE has reached the load limit, and there is no cell in the source network that can perform load transfer.
  • the source access network device needs to find the target network for load transfer. The process of specifically looking for the target network is as follows:
  • the source access network device initiates a load information acquisition request to other heterogeneous networks, and receives other heterogeneous types.
  • the load information fed back by the network determines whether there is a heterogeneous network in which the load is smaller than the third load threshold in the other heterogeneous network, and the third load threshold may be preset by the source access network device according to the load capacity of the other heterogeneous network, or by other differences
  • the system network is pre-set by itself.
  • the source access network device uses the heterogeneous network as the target network for the load transfer.
  • the source access network device generates a temporary priority list.
  • the source access network device adjusts the priority and location of each frequency point of the source network and the target network in the original priority list to generate a temporary priority list.
  • the priority of the frequency of the source network in the temporary priority list is lower than the priority of the frequency of the target network.
  • the specific method of generating the temporary priority list can be as follows.
  • the priority and location of each frequency point of the source network and the target network in the original priority list are reassigned to generate a temporary priority list.
  • the source network is LTE, and the source network has only one frequency point L1
  • the target network is UMTS, and the target network has two frequency points U2 and U3.
  • the priority of the intermediate frequency list Ll, U2, and U3 is:
  • the frequency priority of the source network is lowered, and the priority of the frequency of the target network is adjusted accordingly.
  • the priority of multiple frequency points in the target network is maintained at a relative high level and low relationship, and each of the adjusted temporary priority lists is The priority of the frequency points is:
  • the frequency point U3 has the highest priority, and the UE can shift to the cell corresponding to the frequency point U3.
  • the source network is still LTE
  • the source network has two frequency points LI, L2, and the frequency of the serving cell where the UE currently camps is L1
  • the target network is UMTS
  • the target network has a frequency point U3.
  • the priority of the frequency points L1, L2, and U3 in the original priority list are respectively:
  • the source access network device directly ignores the lower priority L2 frequency point in the source network, and adjusts the priority and position of the remaining frequency points.
  • the priority and position of each frequency point in the temporary priority list generated after the adjustment are respectively :
  • the priority of the frequency point L2 not carried in the UE ⁇ 1 temporary ⁇ ⁇ special priority list is automatically determined to be the lowest by default.
  • the second method described above is only applicable to the case where there are multiple frequency points in the source network, that is, the different frequency networking.
  • the first method does not require the number of frequency points of the source network and the target network, and any situation is applicable.
  • the source access network device sends the temporary priority list to the target access network device.
  • the source access network device sends the generated temporary priority list to the target access network device.
  • the specific sending method can be as follows:
  • the temporary priority list is sent to the target access network device through a Radio Access Network Information Management (RIM) process.
  • RIM Radio Access Network Information Management
  • the source access network device may place the temporary priority list in a System Information Block (SIB) related to the heterogeneous system reselection of the RIM information, and replace the original priority list with the temporary priority list.
  • SIB System Information Block
  • the temporary priority list is placed in the SIB 6 structure of the neighboring area of the UMTS terrestrial radio access network and sent to the target network.
  • the source access network device and the target access network device may pre-arrange that, once the target access network device receives the new priority list (ie, the temporary priority list), the new priority list is sent to the UE;
  • the network access device sends the temporary priority list to the target access network device, a cell field is added, indicating that the target access network device needs to redirect the UE to send the temporary priority list after receiving the temporary priority list.
  • the source access network device sends the temporary priority list to the target access network device
  • An additional cell field is added to identify the effective duration of the temporary priority list. Once the broadcast time of the temporary priority list exceeds the valid duration of the identifier, the source access network device and the target access network device respectively send the original priority list to the UE. .
  • the temporary priority list is sent to the master control node to send the temporary priority list to the target access network device by using the master control node.
  • the source access network device sends a load adjustment request to the master control node, and after the source access network device marks the effective duration of the temporary priority list, sends the temporary priority list to the master control node, so that the master control node
  • the temporary priority list and the effective duration are sent to the target access network device.
  • the master control node can be an operation supporting system (OSS) network element, or other node with a master control function.
  • OSS operation supporting system
  • the source access network device may send the temporary priority list to the target access network device according to any one of the foregoing two methods, so that when the load of the source network is greater than the second load threshold, the source access network device and the target Each access network device sends a temporary priority list to the UE.
  • the source access network device sends a temporary priority list to the UE.
  • the source access network device After transmitting the generated temporary priority list to the target access network device, the source access network device sends a temporary priority list to the UE, and the manner of sending the temporary priority list to the UE may be broadcast.
  • the source access network device continues to detect the load of the source network.
  • the source access network device After the source access network device sends the temporary priority list to the UE, the source access network device continues to detect the load of the source network.
  • the source access network device detects whether the load of the source network is restored to a normal level, that is, the load of the source network is less than the second load threshold.
  • the source access network device detects that the load of the source network is less than the second load threshold, the information is sent to the target access network device to notify the target access network device to send the original priority list to the UE as the original access network device. .
  • the source access network device may send the first information to the target access network device by using a RIM process, where That is, the RIM message without the different system reselection SIB is sent to the target access network device, and the message is used to indicate that the target access network device sends the original priority list to the UE in the same manner as the source access network device.
  • a RIM process where That is, the RIM message without the different system reselection SIB is sent to the target access network device, and the message is used to indicate that the target access network device sends the original priority list to the UE in the same manner as the source access network device.
  • the source access network device sends the second information to the master control node to send the second information to the target access network device by using the master control node, where the second information is used to indicate that the target access network device is the same as the source access network device.
  • the original priority list is sent to the UE.
  • the source access network device detects the load of the serving cell, and when the load of the serving cell is greater than the first load threshold, detects the load of the source network, and the load on the source network is greater than the second load threshold, generating a temporary priority.
  • the level list, and the temporary priority list is sent to the target access network device, so that both the source access network device and the target access network device can send the temporary priority list to the user equipment UE.
  • the source access network device sends the temporary priority list generated by the source access network device to the target access network device because the load of the serving cell is too high, and no other cells in the source network can perform load transfer.
  • the network access device and the target access network device send a temporary priority list to the UE, and when the load of the source network returns to a normal level, the source access network device sends a message to notify the target access network device and the source access network.
  • the device redirects the original priority list to the UE, ensuring that the priority list obtained by the UE in different networks is the same, avoiding the ping-pong reselection of the UE.
  • the method of this embodiment includes:
  • the target access network device receives the temporary priority list sent by the source access network device.
  • the target access network device receives the temporary priority list sent by the source access network device through the RIM process or through the master control node, and the temporary priority list.
  • the list includes the frequency of the source network, the frequency of the target network, the priority of the frequency of the source network, and the priority of the frequency of the target network.
  • the frequency of the source network in the temporary priority list has a lower priority than the frequency of the target network.
  • the source access network device is a device that accesses the UE to the source network
  • the target access network device is a device that accesses the UE to the target network.
  • the target access network device sends a temporary priority list to the UE.
  • the target access network device can send a temporary priority list to the UE in a broadcast manner.
  • the target access network device when the target access network device receives the information sent by the source access network device to notify the target access network device to redirect the original priority list to the UE, the target access network device sends the information to the UE.
  • the original priority list when the target access network device receives the information sent by the source access network device to notify the target access network device to redirect the original priority list to the UE, the target access network device sends the information to the UE.
  • the original priority list when the target access network device receives the information sent by the source access network device to notify the target access network device to redirect the original priority list to the UE.
  • the target access network device after receiving the temporary priority list sent by the source access network device, the target access network device sends a temporary priority list to the UE as the source access network device, when the target access network device receives the source.
  • the information sent by the access network device is used to notify the target access network device to redirect the information of the original priority list to the UE
  • the original priority list is sent to the UE in the same manner as the source access network device, thereby ensuring the inter-network between different standards.
  • the broadcast messages are consistent, so the UEs are in the same priority list regardless of which network they are in, avoiding the ping-pong reselection of the UE.
  • the method in this embodiment includes:
  • the UE receives a temporary priority list sent by the source access network device.
  • the heterogeneous network in this embodiment includes a source network of the first communication system and a target network of the second communication system, and the source access network device is a device that accesses the UE to the source network.
  • the temporary priority list received by the UE includes the frequency of the source network, the frequency of the target network, the priority of the frequency of the source network, and the priority of the frequency of the target network, and the source network in the temporary priority list
  • the priority of the frequency point ⁇ is the priority of the frequency of the target network.
  • the UE performs network reselection according to a priority of the intermediate frequency list of the temporary priority list.
  • the UE finds the frequency point with the highest priority among the temporary priority list, and reselects the network corresponding to the frequency with the highest priority, that is, the target network.
  • the UE receives the temporary priority list sent by the target access network device in the target network, and the temporary priority list sent by the target access network device to the UE is the same as the temporary priority list sent by the source access network device to the UE.
  • the temporary priority list sent by the source access network device is received, and when the UE is in the target network, the temporary priority list sent by the target access network device is received, that is, regardless of the UE. Which network in the heterogeneous network receives the same priority list, so ping pong reselection can be effectively avoided.
  • the access network device 500 of this embodiment includes:
  • the priority list generating unit 501 is configured to generate a temporary priority list, where the temporary priority list includes a frequency point of the source network, a frequency point of the target network, a priority of the frequency of the source network, and a frequency of the target network. priority;
  • the sending unit 502 is configured to send the temporary priority list to the target access network device, where the target access network device is a device that accesses the UE to the target network, and sends a temporary priority list to the UE.
  • the priority list generating unit of the source access network device sends the generated temporary priority list to the target access network device, so that the sending unit and the target access network device of the source access network device can be configured.
  • Sending a temporary priority list to the UE ensures that the broadcast messages between different standard networks are consistent. Therefore, no matter which network the UE is in, the frequency list with the highest priority can always be selected from the priority list of the network broadcast, so that the cell corresponding to the frequency point is reselected to avoid the ping-pong reselection.
  • the access network device in the embodiment of the present invention is described below with reference to a specific embodiment.
  • the access network device 600 described in this embodiment is still a source access network device, and the access network.
  • Apparatus 600 includes:
  • the load detection unit 601 is configured to detect a load of the serving cell, where the serving cell is a cell that the UE currently resides in the source network, and when the load of the serving cell is greater than the first load threshold, detecting a load of the source network, when the load of the source network is greater than
  • the second load threshold is used to initiate a load information acquisition request to other heterogeneous networks, receive load information fed back by other heterogeneous networks, and find a heterogeneous network whose load is less than the third load threshold according to the load information, and the load is less than the third load threshold.
  • the heterogeneous network as the target network, the trigger priority list generating unit 602 generates a temporary priority list;
  • the priority list generating unit 602 is configured to generate a temporary priority list, where the temporary priority list includes a frequency point of the source network, a frequency point of the target network, a priority of the frequency of the source network, and a frequency of the target network. priority;
  • the sending unit 603 is configured to send the temporary priority list to the target access network device, where the target access network device is a device that accesses the UE to the target network, and sends a temporary priority list to the UE.
  • the UE In the scenario of the heterogeneous network networking, after the UE is powered on, it registers with a certain network. After the registration is successful, it resides in a certain cell under the coverage of the network.
  • the network where the UE is currently located is called the source network, and the UE is called the source network.
  • a cell that resides in the source network is called a serving cell.
  • the load detecting unit 601 of the source access network device detects the serving cell by detecting the resource utilization of the serving cell or the number of users accessing the serving cell. The load situation.
  • the load detecting unit 601 may preset a load threshold for the serving cell according to the load capacity of the serving cell, that is, the first load threshold. When detecting that the load of the serving cell is greater than the first load threshold, the load detecting unit 601 continues to detect the load of the source network. .
  • the load detecting unit 601 When the load of the serving cell is too high, the load detecting unit 601 needs to further detect the load of other cells in the source network. If the load of other cells in the source network is not high, the UE may transfer to other cells in the source network. If the load of other cells in the source network is too high, the load detecting unit 601 needs to find a target network that can perform load transfer.
  • the load detecting unit 601 may infer the source network according to the detected load condition of the serving cell. Load. If the source network is an inter-frequency network, the load detection unit 601 may obtain the load status of the cells at each frequency point in the source network through the master control node, and then accumulate the load of the cells at each frequency point in the source network, that is, the source network. Load.
  • the load detection unit 601 may preset a second load threshold for the source network according to the network capacity of the source network. When it is detected that the load of the source network is greater than the second load threshold, it indicates that all cells of the source network have reached the load limit, and can no longer be The new UE provides services.
  • the load detecting unit 601 needs to find the target network of the load transfer.
  • the load detecting unit 601 initiates a load information acquisition request to other heterogeneous networks, receives load information fed back by other heterogeneous networks, and determines whether there is a heterogeneous network in which the load is smaller than the third load threshold in the other heterogeneous network, and the third load The threshold may be preset by the load detection unit 601 according to the load capacity of other heterogeneous networks, or may be preset by other heterogeneous networks.
  • the load detecting unit 601 uses the heterogeneous network as the target network of the load transfer.
  • the priority list generating unit needs to be optimized for the original
  • the priority and position of each frequency point of the source network and the target network in the prior list are adjusted to generate a temporary priority list.
  • the frequency of the source network in the temporary priority list has a lower priority than the frequency of the target network.
  • the method for generating the temporary priority list by the specific priority list generating unit 602 can be as follows: The first mode:
  • the priority and location of each frequency point of the source network and the target network in the original priority list are reassigned to generate a temporary priority list.
  • the source network is LTE, and the source network has only one frequency point L1
  • the target network is UMTS, and the target network has two frequency points U2 and U3.
  • the priority of the intermediate frequency list Ll, U2, and U3 is:
  • the priority of LI ( PI ), U3 ( P2 ), U2 ( P3 ); is adjusted accordingly, and the priority of multiple frequency points in the target network should maintain the relative high and low relationship, and each frequency point in the adjusted temporary priority list
  • the priorities are:
  • the source network is still LTE
  • the source network has two frequency points L1 and L2, and the frequency of the serving cell where the UE currently camps is L1
  • the target network is UMTS
  • the target network has a frequency point U3.
  • the priority of the frequency points Ll, L2, and U3 in the original priority list are:
  • the priority list generating unit 602 directly ignores the lower priority L2 frequency point in the source network, adjusts the priority and position of the remaining frequency points, and adjusts the frequency points of the generated temporary priority list.
  • the priority and location are:
  • the priority of the frequency point L2 not carried in the UE ⁇ 1 temporary ⁇ ⁇ special priority list is automatically determined to be the lowest by default.
  • the second method described above is only applicable to the case where there are multiple frequency points in the source network.
  • the first method does not require the number of frequency points of the source network and the target network, and any situation is applicable.
  • the sending unit 603 After generating the temporary priority list, the sending unit 603 sends the temporary priority list to the target access network device, so that both the source access network device and the target access network device send the temporary priority list to the UE.
  • the manner in which the specific sending unit 603 transmits the temporary priority list to the target access network device is as follows.
  • RIM Resource Management
  • the sending unit 603 may place the temporary priority list in a System Information Block (SIB) related to the heterogeneous system reselection of the RIM information, and replace the original priority list with the temporary priority list, for example, It is sent to the target access network device in the SIB 6 structure of the neighboring area of the UMTS terrestrial radio access network.
  • SIB System Information Block
  • the source access network device and the target access network device may pre-arrange that, once the target access network device receives the new priority list (ie, the temporary priority list), the new priority list is sent to the UE; or the sending unit 603, when sending the temporary priority list to the target access network device, attach a cell field, indicating that the temporary priority list needs to be sent to the UE after receiving the temporary priority list.
  • the new priority list ie, the temporary priority list
  • the sending unit 603 when sending the temporary priority list to the target access network device, attach a cell field, indicating that the temporary priority list needs to be sent to the UE after receiving the temporary priority list.
  • the sending unit 603 may further add another cell field to identify the effective duration of the temporary priority list, and the broadcast time of the temporary priority list once exceeds the valid duration of the identifier.
  • the source access network device and the target access network device both send the original priority list to the UE.
  • the temporary priority list is sent to the master control node to send the temporary priority list to the target access network device by using the master control node.
  • the sending unit 603 sends a load adjustment request to the master control node, and after transmitting the temporary duration list for the effective duration, the sending unit 603 sends the temporary priority list to the master control node, so that the master control node sets the temporary priority list. And the effective duration is sent to the target access network device.
  • the master node can be Oss network element, or other node with master control function.
  • the sending unit 603 may send the temporary priority list to the target access network device according to any one of the foregoing two manners, so that when the load of the source network is greater than the first load threshold, the source access network device and the target access The network device sends a temporary priority list to the UE.
  • the specific sending unit 603 can send the temporary priority list to the UE.
  • the load detecting unit 601 continues to detect the load of the source network, and when detecting that the source network returns to the normal level, that is, when the load of the source network is less than the second load threshold, the sending unit 603, sending information to the target access network device, to notify the target access network device to redirect the original priority list to the UE, like the source access network device.
  • the sending unit 603 can send the first information to the target access network device by using the RIM process, that is, send the RIM message without the different system reselection SIB to the target access network device, where the message is used to indicate the target access network device.
  • the original priority list is sent to the UE as the source access network device.
  • the sending unit 603 sends the second information to the master control node to send the second information to the target access network device by using the master control node, where the second information is used to indicate that the target access network device is redirected like the source access network device.
  • the UE sends the original priority list.
  • the load detection unit detects the load of the serving cell, and detects the load of the source network when the load of the serving cell is greater than the first load threshold; when the load of the source network is greater than the second load threshold, A temporary priority list is generated, and the sending unit sends the temporary priority list to the target access network device, so that both the source access network device and the target access network device send the temporary priority list to the UE.
  • the sending unit when the load of the serving cell is too high, and the cell with no lower load in the source network can perform load transfer, the sending unit sends the temporary priority list generated by the priority list generating unit to the target connection.
  • the network access device enables the source access network device and the target access network device to send to the UE a temporary priority list, and when the load of the source network returns to a normal level, the sending unit sends a message to notify the target access network device and The source access network device redirects the original priority list to the UE, ensuring that the priority list obtained by the UE in different networks is the same, avoiding the ping-pong reselection.
  • the sending unit in this embodiment may be a transmitter of an access network device (for example, a base station); or, may be a transceiver of the access network device.
  • the priority list generating unit may be a separately set processor, or may be integrated into one processor of the access network device, and It may also be stored in the memory of the access network device in the form of program code, by a certain priority list generating unit of the access network device, and may be integrated with the priority list generating unit, or may be implemented independently.
  • the processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated configurations configured to implement embodiments of the present invention. Circuit.
  • the above two embodiments describe the source access network device.
  • the following embodiments will describe the device that accesses the UE to the target network, that is, the target access network device.
  • the access network device 700 of this embodiment Includes:
  • the receiving unit 701 is configured to receive a temporary priority list sent by the source access network device, where the temporary priority list includes a frequency of the source network, a frequency of the target network, a priority of the frequency of the source network, and a target network.
  • the priority of the frequency point, and the source access network device is a device that accesses the UE to the source network; and the sending unit 702 is configured to send the temporary priority list to the UE.
  • the receiving unit 701 may receive a temporary priority list sent by the source access network device through the RIM process or through the master control node, where the frequency of the source network in the temporary priority list has a lower priority than the target network. The priority of the frequency.
  • the sending unit 702 can send the temporary priority list received by the receiving unit 701 to the UE by means of broadcast.
  • the sending unit 702 redirects the original priority list to the UE.
  • the sending unit sends the temporary priority list to the UE, and the receiving unit receives the source access network device.
  • the sending unit sends the original priority list to the UE in the same manner as the source access network device, thereby ensuring broadcast messages between different standard networks. Consistently, the priority list obtained by the UE is the same regardless of which network the UE is in, avoiding the ping-pong reselection of the UE.
  • the receiving unit in this embodiment may be a receiver of the access network device, and the sending unit may be a transmitter of the access network device; in addition, the receiving unit and the sending unit may also be integrated in the Together form the transceiver of the access network device. And the receiving unit and the sending unit may be connected to the processor of the access network device to send the received data to the processor for processing, or send the processed data of the processor.
  • the processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated configurations configured to implement embodiments of the present invention. Circuit.
  • the UE 800 of this embodiment includes: a receiving unit 801, configured to receive a temporary priority list sent by a source access network device, where the temporary priority list includes The frequency of the source network, the frequency of the target network, the priority of the frequency of the source network, and the priority of the frequency of the target network.
  • the source access network device is a device that connects the UE to the source network; network reselection
  • the unit 802 is configured to perform network reselection according to the priority of the intermediate frequency list in the temporary priority list received by the receiving unit 801.
  • the receiving unit 801 is further configured to: when the network reselecting unit 802 reselects the access target network, receive a temporary priority list that is received by the target access network device from the source access network device and sent to the UE, and the target access network device A device that connects a UE to a target network.
  • the receiving unit when the UE is in the source network, receives the temporary priority list sent by the source access network device, and the network reselecting unit reselects to the target network according to the temporary priority list, and receives the UE when the UE is in the target network.
  • the unit receives the temporary priority list sent by the target access network device, that is, no matter which network the UE is in the heterogeneous network, the received priority list is the same, so the ping pong reselection can be effectively avoided.
  • the receiving unit in this embodiment may be a receiver of the UE; in addition, it may also be a transceiver of the UE.
  • the network reselection unit may be a separately set processor, or may be integrated in one of the UE's processors, or may be stored in the UE's memory in the form of program code, and is called by one of the UE's processors. Perform the function of reselecting the unit by network.
  • the processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated configurations configured to implement embodiments of the present invention. Circuit.
  • the access network device in this embodiment is a device that accesses the UE to the source network, that is, the source access network device, and the access network in this embodiment.
  • Device 900 includes: Receiver 901, transmitter 902, memory 903, and processor 904.
  • the receiver 901, the transmitter 902, and the memory 903 are all connected to the processor 904, for example, may be connected by a bus.
  • the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device, and the embodiment of the present invention is not limited thereto.
  • Receiver 901 and transmitter 902 can be integrated to form a transceiver.
  • Memory 903 is for storing executable program code, the program code including computer operating instructions.
  • the memory 903 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the processor 904 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • the processor 904 is configured to generate a temporary priority list, where the temporary priority list includes a frequency of the source network, a frequency of the target network, a priority of the frequency of the source network, and a priority of the frequency of the target network.
  • the transmitter 902 is configured to send the temporary priority list to the target access network device, where the target access network device is a device that accesses the UE to the target network, and sends a temporary priority list to the UE.
  • the frequency of the source network in the above temporary priority list has a lower priority than the frequency of the target network.
  • the processor 904 is further configured to: detect a load of the serving cell, where the serving cell is a cell that the UE currently resides in the source network, and when the load of the serving cell is greater than the first load threshold, detect a load of the source network, where the load of the source network is greater than
  • the second load threshold is used to initiate a load information acquisition request to other heterogeneous networks, receive load information fed back by other heterogeneous networks, and find a heterogeneous network whose load is less than the third load threshold according to the load information, and the load is less than the third load threshold.
  • the heterogeneous network acts as the target network, generating a temporary priority list.
  • the method for detecting the load of the source network by the processor 904 is specifically:
  • the load of the cells of all frequency points in the source network is obtained by the master control node, and the load of the cells of all frequency points in the source network is accumulated.
  • the method for the transmitter 902 to send the temporary priority list to the target access network device is specifically: Transmitting the temporary priority list to the target access network device through the radio access network information management RIM process; or
  • the temporary priority list is sent to the master control node to send the temporary priority list to the target access network device by using the master control node.
  • the processor 904 continues to detect the load of the source network.
  • the processor 904 detects that the load of the source network is less than the second load threshold, the transmitter 902 connects to the target through the RIM process.
  • the network access device sends the first information, where the first information is used to indicate that the target access network device sends the original priority list to the UE in the same manner as the source access network device; or
  • the transmitter 902 sends the second information to the master control node to send the second information to the target access network device by using the master control node, where the second information is used.
  • the target access network device is instructed to send the original priority list to the UE as the source access network device.
  • the access network device in this embodiment is a device that accesses the UE to the target network, that is, the target access network device, and the access network in this embodiment.
  • Apparatus 1000 includes:
  • the receiver 1001, the transmitter 1002, and the memory 1003 are all connected to the processor 1004, for example, via a bus.
  • the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • the embodiment of the present invention is not limited herein.
  • Receiver 1001 and transmitter 1002 can be integrated to form a transceiver.
  • the memory 1003 is for storing executable program code, the program code including computer operating instructions.
  • the memory 1003 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the processor 1004 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • the processor 1001 is configured to execute the executable program code stored in the memory 1003.
  • the receiver 1001 is configured to receive the temporary priority list sent by the source access network device, where the temporary priority list includes the frequency and target of the source network.
  • the frequency of the network, the priority of the frequency of the source network, and The priority of the frequency of the target network, and the source access network device is a device that accesses the UE to the source network;
  • the transmitter 1002 is configured to send the temporary priority list to the UE.
  • the frequency of the source network in the temporary priority list has a lower priority than the frequency of the target network.
  • the UE 1100 of this embodiment includes:
  • the receiver 1101, the transmitter 1102, and the memory 1103 are all connected to the processor 1104, for example, may be connected by a bus.
  • the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • the embodiment of the present invention is not limited herein.
  • Receiver 1101 and transmitter 1102 can be integrated to form a transceiver.
  • Memory 1103 is for storing executable program code, the program code including computer operating instructions.
  • the memory 1103 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the processor 1104 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • the receiver 1101 is configured to receive a temporary priority list sent by the source access network device, where the temporary priority list includes a frequency of the source network, a frequency of the target network, a priority of the frequency of the source network, and a target.
  • the priority of the frequency of the network, the source access network device is a device that accesses the UE to the source network; the processor 1104 is configured to perform network reselection according to the priority of the intermediate priority list intermediate frequency point; the receiver 1101 further And: when the processor 1104 reselects the access target network, receiving, by the target access network device, the temporary priority list received by the source access network device and sent to the UE, where the target access network device accesses the UE The device of the target network.
  • the frequency of the source network in the temporary priority list has a lower priority than the frequency of the target network.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be Physical unit, which can be located in one place, or it can be distributed Go to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the connection relationship between the units indicates that there is a communication connection between them, and specifically may be implemented as one or more communication buses or signal lines.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, through dedicated hardware, including an application specific integrated circuit, a dedicated CPU, a dedicated memory, Special components and so on.
  • functions performed by computer programs can be easily implemented with the corresponding hardware.
  • the specific hardware structure used to implement the same function can be various, such as analog circuits, digital circuits, or dedicated circuits. Circuits, etc.
  • software program implementation is a better implementation in more cases.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a readable storage medium such as a floppy disk of a computer.
  • U disk mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., including a number of instructions to make a computer device
  • the method described in various embodiments of the present invention may be a personal computer, a server, or a network device.

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Abstract

一种异制式网络中的通信方法、接入网设备及 UE，所述方法包括：源接入网设备生成临时优先级列表，其中，临时优先级列表包括源网络的频点、目标网络的频点、源网络的频点的优先级、和目标网络的频点的优先级，且源接入网设备为将UE接入到源网络的设备；源接入网设备将临时优先级列表发给目标接入网设备，目标接入网设备为将 UE接入到目标网络的设备；源接入网设备向UE发送临时优先级列表。本发明能够保证不同制式网络间的广播消息一致，避免造成UE的乒乓重选。

Description

一种异制式网络中的通信方法、 接入网设备及 UE
技术领域
本发明涉及通信领域， 尤其涉及一种异制式网络中的通信方法、接入网设 备及 UE。
背景技术
在全 ί求移动通信系统 ( global system for mobile communications , GSM )与 长期演进 (Long Term Evolution , LTE )组网， 或者 LTE与通用移动通信系统 ( Universal Mobile Telecommunications System, UMTS )组网，或者 GSM、 LTE 及 UMTS组网的场景中， 当某个制式接入网侧业务负载较高时， 一般会启动一 个负载转移算法来调整业务策略， 将用户设备（User Equipment, UE )转移到 共覆盖网络的其他制式。 其中， 连接（Connected ) 态 UE是当前可测量到的负 载， 空闲 （IDLE ) 态 UE是潜在的负载， IDLE态 UE近期内有可能发起数据量 较大的业务。 根据 UE转移的类别， 负载转移算法分为连接态算法和 IDLE态算 法， IDLE态 UE的转移行为主要受小区广播消息控制。
现有技术中 IDLE态负载转移的过程具体为： 业务负荷较高的网络侧变更 自身网络广播的系统消息， 将自己频点的 IDLE态小区重选优先级调低， 将检 测到的同覆盖下负载较低的其他制式网络的 IDLE态小区重选优先级调高， 以 使更多 UE重选到其他制式网络。
现有技术中的 IDLE态负载转移过程存在的主要问题是： 不同制式网络间 的重选优先级不能协同。一般网络初始配置时各制式网络中的频点重选优先级 一致， 当单个制式网络单方面调整优先级时，各制式网络间广播消息内容未协 同， 负载转移效果差。 例如， LTE负载过高时， LTE广播 UMTS频点优先级高， UE重选到 UMTS , 当 UE重选到 UMTS之后， UMTS网络系统广播消息内容可能 为 UMTS频点优先级低， 则 UE比较容易重选回 LTE, 造成乒乓重选。
发明内容
本发明实施例提供了一种异制式网络中的通信方法、接入网设备及 UE , 能 够保证不同制式网络间的广播消息一致， 避免造成 UE的乒乓重选。
本发明实施例第一方面提供了一种异制式网络中的通信方法， 其中， 所述 异制式网络包括第一通信制式的源网络和第二通信制式的目标网络，所述方法 适用于源网络中的用户设备 UE重选到目标网络的过程中， 所述方法包括： 源 接入网设备生成临时优先级列表， 其中， 所述临时优先级列表包括源网络的频 点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级， 且所述源接入网设备为将所述 UE接入到源网络的设备；
所述源接入网设备将所述临时优先级列表发给目标接入网设备，所述目标 接入网设备为将所述 UE接入到目标网络的设备；
所述源接入网设备向所述 UE发送所述临时优先级列表。
结合本发明实施例的第一方面，在本发明实施例第一方面的第一种实施方 式中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的 优先级。
结合本发明实施例的第一方面， 或第一方面的第一种实施方式，在本发明 实施例第一方面的第二种实施方式中，在所述源接入网设备生成临时优先级列 表之前， 还包括：
所述源接入网设备检测服务小区的负载，所述服务小区为所述 UE当前驻 留在所述源网络的小区；
当所述服务小区的负载大于第一负载阈值时，所述源接入网设备检测所述 源网络的负载；
当所述源网络的负载大于第二负载阈值时，触发生成临时优先级列表的步 骤。
结合本发明实施例第一方面的第二种实施方式，在本发明实施例第一方面 的第三种实施方式中， 所述源接入网设备检测所述源网络的负载的方法具体 为：
所述源接入网设备根据检测到的所述服务小区的负载推测所述源网络的 负载；
或者所述源接入网设备通过总控节点获取所述源网络内所有频点的小区 的负载， 将所述源网络内所有频点的小区的负载累加。
结合本发明实施例第一方面的第二种实施方式，在本发明实施例第一方面 的第四种实施方式中，在检测到所述源网络的负载大于第二负载阈值之后， 在 触发生成临时优先级列表的步骤之前， 还包括： 所述源接入网设备向其他异制式网络发起负载信息获取请求； 所述源接入网设备接收所述其他异制式网络反馈的负载信息，并根据所述 负载信息寻找负载小于第三负载阈值的异制式网络，将所述负载小于第三负载 阈值的异制式网络作为所述目标网络。
结合本发明实施例的第一方面， 或第一方面的第一种实施方式，在本发明 实施例第一方面的第五种实施方式中，所述源接入网设备将所述临时优先级列 表发送给所述目标接入网设备的方法具体为：
所述源接入网设备通过无线接入网信息管理 RIM流程将所述临时优先级 列表发送给所述目标接入网设备； 或者
所述源接入网设备将所述临时优先级列表发送给所述总控节点，以利用所 述总控节点将所述临时优先级列表发送给所述目标接入网设备。
结合本发明实施例第一方面的第五种实施方式，在本发明实施例第一方面 的第六种实施方式中， 所述源接入网设备将所述临时优先级列表发送给所述 UE之后， 还包括：
所述源接入网设备继续检测所述源网络的负载；
当所述源接入网设备检测到所述源网络的负载小于所述第二负载阈值时， 所述源接入网设备通过所述 RIM流程向所述目标接入网设备发送第一信息， 所述第一信息用于指示所述目标接入网设备与所述源接入网设备一样改向所 述 UE发送所述原始优先级列表； 或者
当所述源接入网设备检测到所述源网络的负载小于所述第二负载阈值时， 所述源接入网设备向所述总控节点发送第二信息，以利用所述总控节点将所述 第二信息发送给所述目标接入网设备，所述第二信息用于指示所述目标接入网 设备与所述源接入网设备一样改向所述 UE发送所述原始优先级列表。
本发明实施例的第二方面提供了另一种异制式网络中的通信方法， 其中， 所述异制式网络包括第一通信制式的源网络和第二通信制式的目标网络，所述 方法适用于源网络中的用户设备 UE重选到目标网络的过程中，所述方法包括： 目标接入网设备接收源接入网设备发送的临时优先级列表， 其中， 所述临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级，且所述源接入网设备为将所述 UE接入到源网络 的设备， 所述目标接入网设备为将所述 UE接入到目标网络的设备； 所述目标接入网设备向所述 UE发送所述临时优先级列表。
结合本发明实施例第二方面，在本发明实施例第二方面的第一种实施方式 中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的优 先级。
本发明实施例的第三方面提供了另一种异制式网络中的通信方法， 其中， 所述异制式网络包括第一通信制式的源网络和第二通信制式的目标网络，所述 方法适用于源网络中的用户设备 UE重选到目标网络的过程中，所述方法包括： 所述 UE接收源接入网设备发送的临时优先级列表， 其中， 所述临时优先 级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标 网络的频点的优先级， 所述源接入网设备为将所述 UE接入到源网络的设备； 所述 UE根据所述临时优先级列表中频点的优先级， 进行网络重选； 当所述 UE重选接入所述目标网络时，接收所述目标接入网设备从所述源 接入网设备接收的并发送给所述 UE的所述临时优先级列表，所述目标接入网 设备为将所述 UE接入到目标网络的设备。
结合本发明实施例的第三方面，在本发明实施例第三方面的第一种实施方 式中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的 优先级。
本发明实施例第四方面提供了一种接入网设备，所述接入网设备为将用户 设备 UE接入到源网络的设备， 包括：
优先级列表生成单元， 用于生成临时优先级列表， 其中， 所述临时优先级 列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网 络的频点的优先级；
发送单元， 用于将所述临时优先级列表发给目标接入网设备， 所述目标接 入网设备为将所述 UE接入到目标网络的设备， 以及向所述 UE发送所述临时 优先级列表。
结合本发明实施例的第四方面，在本发明实施例第四方面的第一种实施方 式中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的 优先级。 结合本发明实施例的第四方面， 或第四方面的第一种实施方式，在本发明 实施例第四方面的第二种实施方式中， 所述接入网设备还包括：
负载检测单元， 用于检测服务小区的负载， 所述服务小区为所述 UE当前 驻留在所述源网络的小区， 当所述服务小区的负载大于第一负载阈值时，检测 所述源网络的负载， 当所述源网络的负载大于第二负载阈值时，触发所述优先 级列表生成单元生成临时优先级列表。
结合本发明实施例第四方面的第二种实施方式，在本发明实施例第四方面 的第三种实施方式中， 所述负载检测单元检测所述源网络的负载的方法具体 为：
所述负载检测单元根据检测到的所述服务小区的负载推测所述源网络的 负载； 或者
所述负载检测单元通过总控节点获取所述源网络内所有频点的小区的负 载， 将所述源网络内所有频点的小区的负载累加。
结合本发明实施例第四方面的第二种实施方式，在本发明实施例第四方面 的第四种实施方式中，所述负载检测单元在检测到所述源网络的负载大于第二 负载阈值之后，在触发所述优先级列表生成单元生成临时优先级列表之前，还 用于：
向其他异制式网络发起负载信息获取请求，接收所述其他异制式网络反馈 的负载信息， 并才 据所述负载信息寻找负载小于第三负载阈值的异制式网络， 将所述负载小于第三负载阈值的异制式网络作为所述目标网络。
结合本发明实施例第四方面， 或第四方面的第一种实施方式，在本发明实 施例第四方面的第五种实施方式中，所述发送单元将所述临时优先级列表发送 给所述目标接入网设备的方法具体为：
所述发送单元通过无线接入网信息管理 RIM流程将所述临时优先级列表 发送给所述目标接入网设备； 或者
所述发送单元将所述临时优先级列表发送给所述总控节点，以利用所述总 控节点将所述临时优先级列表发送给所述目标接入网设备。
结合本发明实施例第四方面的第五种实施方式，在本发明实施例第四方面 的第六种实施方式中， 所述负载检测单元还用于： 在所述发送单元将所述临时优先级列表发送给所述 UE之后，继续检测所 述源网络的负载；
所述发送单元还用于：
在所述负载检测单元检测到所述源网络的负载小于所述第二负载阈值时， 通过所述 RIM流程向所述目标接入网设备发送第一信息， 所述第一信息用于 指示所述目标接入网设备与所述源接入网设备一样改向所述 UE发送所述原始 优先级列表； 或者
当所述负载检测单元检测到所述源网络的负载小于所述第二负载阈值时， 向所述总控节点发送第二信息，以利用所述总控节点将所述第二信息发送给所 述目标接入网设备，所述第二信息用于指示所述目标接入网设备与所述源接入 网设备一样改向所述 UE发送所述原始优先级列表。
本发明实施例第五方面提供了另一种接入网设备，所述接入网设备为将用 户设备 UE接入到目标网络的设备， 所述接入网设备包括：
接收单元， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级，且所述源接入网设备为将所述 UE接入到源网络 的设备；
发送单元， 用于向所述 UE发送所述临时优先级列表。
结合本发明实施例第五方面，在本发明实施例第五方面的第一种实施方式 中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的优 先级。
本发明实施例第六方面提供了一种用户设备 UE, 包括：
接收单元， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级，所述源接入网设备为将所述 UE接入到源网络的 设备；
网络重选单元， 用于根据所述临时优先级列表中频点的优先级， 进行网络 重选；
所述接收单元还用于： 在所述网络重选单元重选接入所述目标网络时，接收所述目标接入网设备 从所述源接入网设备接收的并发送给所述 UE的所述临时优先级列表，所述目 标接入网设备为将所述 UE接入到目标网络的设备。
结合本发明实施例第六方面，在本发明实施例第六方面的第一种实施方式 中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的优 先级。
本发明实施例第七方面提供了另一种接入网设备，所述接入网设备为将用 户设备 UE接入到源网络的设备， 所述接入网设备包括：
处理器， 用于生成临时优先级列表， 其中， 所述临时优先级列表包括源网 络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优 先级；
发射机， 用于将所述临时优先级列表发给目标接入网设备， 所述目标接入 网设备为将所述 UE接入到目标网络的设备， 以及向所述 UE发送所述临时优 先级列表。
结合本发明实施例第七方面，在本发明实施例第七方面的第一种实施方式 中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的优 先级。
结合本发明实施例第七方面， 或第七方面的第一种实施方式，在本发明实 施例第七方面的第二种实施方式中， 所述处理器还用于：
检测服务小区的负载，所述服务小区为所述 UE当前驻留在所述源网络的 小区， 当所述服务小区的负载大于第一负载阈值时， 检测所述源网络的负载， 当所述源网络的负载大于第二负载阈值时， 生成单元生成临时优先级列表。
结合本发明实施例第七方面的第二种实施方式，在本发明实施例第七方面 的第三种实施方式中， 所述处理器检测所述源网络的负载的方法具体为： 所述处理器根据检测到的所述服务小区的负载推测所述源网络的负载；或 者
所述处理器通过总控节点获取所述源网络内所有频点的小区的负载，将所 述源网络内所有频点的小区的负载累加。
结合本发明实施例第七方面的第二种实施方式，在本发明实施例第七方面 的第四种实施方式中，所述处理器在检测到所述源网络的负载大于第二负载阈 值之后， 在生成临时优先级列表之前， 还用于：
向其他异制式网络发起负载信息获取请求，接收所述其他异制式网络反馈 的负载信息， 并才 据所述负载信息寻找负载小于第三负载阈值的异制式网络， 将所述负载小于第三负载阈值的异制式网络作为所述目标网络。
结合本发明实施例第七方面， 或第七方面的第一种实施方式，在本发明实 施例第七方面的第五种实施方式中，所述发射机将所述临时优先级列表发送给 所述目标接入网设备的方法具体为：
所述发射机通过无线接入网信息管理 RIM流程将所述临时优先级列表发 送给所述目标接入网设备； 或者
所述发射机将所述临时优先级列表发送给所述总控节点，以利用所述总控 节点将所述临时优先级列表发送给所述目标接入网设备。
结合本发明实施例第七方面的第五种实施方式，在本发明实施例第七方面 的第六种实施方式中， 所述处理器还用于：
在所述发射机将所述临时优先级列表发送给所述 UE之后，继续检测所述 源网络的负载；
所述发射机还用于：
在所述处理器检测到所述源网络的负载小于所述第二负载阈值时，通过所 述 RIM流程向所述目标接入网设备发送第一信息， 所述第一信息用于指示所 述目标接入网设备与所述源接入网设备一样改向所述 UE发送所述原始优先级 列表； 或者
当所述处理器检测到所述源网络的负载小于所述第二负载阈值时，向所述 总控节点发送第二信息，以利用所述总控节点将所述第二信息发送给所述目标 接入网设备，所述第二信息用于指示所述目标接入网设备与所述源接入网设备 一样改向所述 UE发送所述原始优先级列表。
本发明实施例第八方面提供了另一种接入网设备，所述接入网设备为将用 户设备 UE接入到目标网络的设备， 所述接入网设备包括：
接收机， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临时 优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和 目标网络的频点的优先级，且所述源接入网设备为将所述 UE接入到源网络的 设备；
发射机， 用于向所述 UE发送所述临时优先级列表。
结合本发明实施例第八方面，在本发明实施例第八方面的第一种实施方式 中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的优 先级。
本发明实施例第九方面提供了另一种用户设备 UE, 包括：
接收机， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临时 优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和 目标网络的频点的优先级，所述源接入网设备为将所述 UE接入到源网络的设 备；
处理器， 用于根据所述临时优先级列表中频点的优先级， 进行网络重选； 所述接收机还用于：
在所述处理器重选接入所述目标网络时，接收所述目标接入网设备从所述 源接入网设备接收的并发送给所述 UE的所述临时优先级列表，所述目标接入 网设备为将所述 UE接入到目标网络的设备。
结合本发明实施例的第九方面，在本发明实施例第九方面的第一种实施方 式中，所述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的 优先级。
从以上技术方案可以看出， 本发明实施例具有以下优点：
本发明实施例中， 源接入网设备生成临时优先级列表， 源接入网设备为将 UE接入到源网络的设备； 源接入网设备将临时优先级列表发给目标接入网设 备， 目标接入网设备为将 UE接入到目标网络的设备； 源接入网设备向 UE发 送临时优先级列表。本发明实施例中， 源接入网设备将生成的临时优先级列表 发送给了目标接入网设备，所以使得源接入网设备及目标接入网设备均可以向 UE发送临时优先级列表，即保证了不同制式网络间的广播消息一致。无论 UE 处在哪个网络中，总是可以从网络广播的优先级列表中选到唯一的优先级最高 的频点， 从而重选到该频点对应的小区， 避免造成乒乓重选。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍，显而易见地， 下面描述 中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲，在不付 出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明异制式网络中的通信方法一个实施例示意图；
图 2为本发明异制式网络中的通信方法另一实施例示意图；
图 3为本发明异制式网络中的通信方法另一实施例示意图；
图 4为本发明异制式网络中的通信方法另一实施例示意图；
图 5为本发明接入网设备一个实施例示意图；
图 6为本发明接入网设备另一实施例示意图；
图 7为本发明接入网设备另一实施例示意图；
图 8为本发明用户设备一个实施例示意图；
图 9为本发明接入网设备另一实施例示意图；
图 10为本发明接入网设备另一实施例示意图；
图 11为本发明实施例中用户设备另一实施例示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行描 述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。 基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所 获得的所有其他实施例， 都属于本发明保护的范围。
本发明实施例提供了一种异制式网络中的通信方法、接入网设备及用户设 备， 能够保证不同制式网络间的广播消息一致， 避免造成 UE的乒乓重选。
请参照图 1 , 图 1示出了本发明异制式网络中的通信方法一个实施例， 本实 施例将站在源接入网设备的角度对异制式网络中的通信方法进行描述，本实施 例的方法包括：
101、 源接入网设备生成临时优先级列表；
本实施例中的异制式网络包括第一通信制式的源网络和第二通信制式的 目标网络， 本实施例的方法适用于源网络中的 UE重选到目标网络的过程中。 其中， 源接入网设备为将 UE接入到源网络的设备。 源接入网设备生成临时优先级列表， 临时优先级列表中包括源网络的频 点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级。
102、 源接入网设备将临时优先级列表发给目标接入网设备；
目标接入网设备为将 UE接入到目标网络的设备， 源接入网设备将生成临 时优先级列表发送给目标接入网设备。
103、 源接入网设备向 UE发送临时优先级列表；
源接入网设备将临时优先级列表发给目标接入网设备之后， 向 UE发送临 时优先级列表， 以使 UE根据临时优先级列表进行网络重选， 具体向 UE发送临 时优先级列表的方式可以为广播。
当 UE重选到目标网络之后， 目标接入网设备会向 UE发送从源接入网设备 接收到的临时优先级列表， 所以无论 UE处于源网络， 还是目标网络， 接收到 的均是相同的网络广播消息。
本实施例中的源接入网设备及目标接入网设备包括但不限于：基站（ Node B )、 演进型基站 （evolved Node B , eNB )、 家庭基站（Home Node B , HNB ) / ( Home eNode B , HeNB ), 无线网络控制器（ radio network controller , RNC )、 基站控制器 ( Base Station Controller, BSC ), 基站收发台 ( Base Transceiver Station, BTS ), 且源接入网设备和目标接入网设备可以为同样的设备， 例如 同一基站内的不同基带板， 或者同一基带板上的不同处理器等，也可以为不同 的设备。
本实施例中，源接入网设备将生成的临时优先级列表发送给了目标接入网 设备， 所以使得源接入网设备及目标接入网设备均可以向 UE发送临时优先级 列表， 即保证了不同制式网络间的广播消息一致。 因此， 无论 UE处在哪个网 络中， 总是可以从网络广播的优先级列表中选到唯一的优先级最高的频点，从 而重选到该频点对应的小区， 避免造成乒乓重选。 方法进行描述，请参阅图 2, 本发明异制式网络中的通信方法另一实施例包括： 201、 源接入网设备检测服务小区的负载；
在异制式网络组网的场景中， UE开机后， 向某一网络注册， 注册成功后 驻留在该网络覆盖下某一小区， 此处将 UE 当前所在的网络称为源网络， UE 在源网络中驻留的小区称为服务小区， UE驻留服务小区后， 源接入网设备通 过检测服务小区的资源利用率或接入服务小区的用户数来检测服务小区的负 载情况， 源接入网设备为将 UE接入到源网络的设备。
202、 在检测到服务小区的负载大于第一负载阈值时， 源接入网设备检测 源网络的负载；
源接入网设备可根据服务小区的负载能力预先为服务小区设置一个负载 阈值， 即第一负载阈值， 当检测到服务小区的负载大于第一负载阈值时， 源接 入网设备继续检测源网络的负载。
当服务小区的负载过高时，源接入网设备需要进一步检测源网络内其他小 区的负载。 如果源网络内其他小区的负载不高， 则 UE可以转移到源网络内的 其他小区，如果源网络内其他小区的负载均过高， 则源接入网设备需要寻找可 进行负载转移的目标网络。
亦即， 当服务小区负载过高时，是否需要寻找目标网络由源网络的负载决 定。
如果源网络为同频组网，且源网络内部启用了负载均衡策略， 即同一时刻 源网络内各个小区的负载情况大致相同，则源网络的负载可由源接入网设备根 据自身检测的服务小区的负载情况推测。如果源网络为异频组网， 则源网络的 负载需要根据源网络内各个频点的小区的负载共同决定，此时源接入网设备可 通过总控节点获取源网络中各个频点的小区的负载情况，然后将源网络内各个 频点的小区的负载累加， 即为源网络的负载。
203、 当检测到源网络的负载大于第二负载阈值时， 源接入网设备寻找负 载转移的目标网络；
源接入网设备可根据源网络的网络容量为源网络预先设置第二负载阈值， 当源接入网设备检测到源网络的负载大于第二负载阈值时，说明源网络的所有 小区均已达到负载极限， 不能再为新的 UE提供服务。
当源网络的负载大于第二负载阈值时，说明 UE的服务小区已达到负载极 限，且源网络内已没有可以进行负载转移的小区。 源接入网设备需要寻找负载 转移的目标网络。 具体寻找目标网络的过程如下：
源接入网设备向其他异制式网络发起负载信息获取请求，接收其他异制式 网络反馈的负载信息，判断其他异制式网络中是否有负载小于第三负载阈值的 异制式网络，第三负载阈值可由源接入网设备根据其他异制式网络的负载容量 预先设置， 或由其他异制式网络自行预先设置。
若其他异制式网络中有负载小于第三负载阈值的异制式网络，则源接入网 设备将该异制式网络作为负载转移的目标网络。
204、 源接入网设备生成临时优先级列表；
源接入网设备对原始优先级列表中源网络及目标网络的各个频点优先级 及位置进行调整， 生成临时优先级列表。 临时优先级列表中源网络的频点的优 先级低于目标网络的频点的优先级。 具体的生成临时优先级列表的方法可如 下。
第一种方式：
将原始优先级列表中源网络及目标网络的各个频点的优先级及位置重新 分配， 生成临时优先级列表。
假设源网络为 LTE , 且源网络只有一个频点 L1 , 目标网络为 UMTS , 目 标网络有两个频点 U2、 U3。 原始优先级列表中频点 Ll、 U2、 U3的优先级为 分别为 ：
LI ( Priority 7 ), U2 ( Priority 3 ), U3 ( Priority 5 ) ；
原始优先级列表中记录的这三个频点的位置分别为：
LI ( PI ), U3 ( P2 ), U2 ( P3 );
将源网络的频点优先级调低，将目标网络的频点的优先级相应调高， 目标 网络内多个频点的优先级要保持原本的相对高低关系，调整后临时优先级列表 中各个频点的优先级分别为：
LI ( Priority 3 ), U2 ( Priority 5 ), U3 ( Priority 7 );
对三个频点的位置做相应调整，调整后生成的临时优先级列表中这三个频 点的位置分别为：
LI ( P3 ), U2 ( P2 ), U3 ( P1 )。
此时， 频点 U3的优先级最高， UE可以转移到频点 U3对应的小区。 第二种方式：
直接忽略源网络中负载较高的部分频点， 生成临时优先级列表。 假设源网络还是 LTE, 源网络有两个频点 LI、 L2, 且 UE当前驻留的服 务小区的频点为 L1 , 目标网络为 UMTS, 目标网络有一个频点 U3。 原始优先 级列表中频点 Ll、 L2、 U3的优先级为分别为 ：
LI ( Priority 7 ), L2 ( Priority 6 ), U3 ( Priority 2 ) ；
原始优先级列表中记录的这三个频点的位置分别为：
LI ( PI ), L2 ( P2 ), U3 ( P3 );
源接入网设备直接忽略源网络中优先级较低的 L2频点， 对剩余频点的优 先级及位置进行调整，调整后生成的临时优先级列表中各个频点的优先级及位 置分别为：
LI ( Priority 2 ), U3 ( Priority 7 ); LI ( P3 ), U3 ( PI )。 UE ^1临时^ ί尤先级 列表中未携带的频点 L2的优先级自动默认为最低。
上述第二种方式仅适用于源网络中有多个频点， 即异频组网的情况， 上述 第一种方式对源网络及目标网络的频点个数没有要求， 任何情况均适用。
205、 源接入网设备将临时优先级列表发送给目标接入网设备；
源接入网设备将生成的临时优先级列表发送给目标接入网设备，具体的发 送方法可如下：
第一种方式：
通过无线接入网信息管理 ( Radio Access Network Information Management, RIM ) 流程将临时优先级列表发送给目标接入网设备。
具体地， 源接入网设备可以将临时优先级列表放在 RIM信息的与异构系 统重选相关的系统信息块（System Information Block, SIB ) 中， 用临时优先 级列表替换原始优先级列表， 例如将临时优先级列表放在 UMTS 陆地无线接 入网邻区的 SIB 6结构中发送给目标网络。
源接入网设备与目标接入网设备可以预先约定，一旦目标接入网设备接收 到新的优先级列表（即临时优先级列表） 时， 即向 UE发送新的优先级列表； 或者源接入网设备在向目标接入网设备发送临时优先级列表时，附加一个信元 字段， 注明当目标接入网设备接收到临时优先级列表后即需要改向 UE发送临 时优先级列表。
另外， 源接入网设备在向目标接入网设备发送临时优先级列表时，还可以 附加另外一个信元字段， 标识临时优先级列表的有效时长， 临时优先级列表的 广播时间一旦超过标识的有效时长， 源接入网设备及目标接入网设备均改向 UE发送原始优先级列表。
第二种方式：
将临时优先级列表发送给总控节点，以利用总控节点将临时优先级列表发 送给目标接入网设备。
具体地， 源接入网设备向总控节点发送负载调整请求， 源接入网设备在为 临时优先级列表标记有效时长后，将临时优先级列表发送给总控节点， 以使总 控节点将临时优先级列表及有效时长发送给目标接入网设备。总控节点可以是 运营支撑系统 ( operation supporting system, OSS ) 网元， 或者其他具有总控 功能的节点。
源接入网设备可以按照上述两种方式中的任何一种将临时优先级列表发 送给目标接入网设备， 以使在源网络的负载大于第二负载阈值时， 源接入网设 备及目标接入网设备均向 UE发送临时优先级列表。
206、 源接入网设备向 UE发送临时优先级列表；
源接入网设备在将生成的临时优先级列表发送给目标接入网设备之后，向 UE发送临时优先级列表，具体向 UE发送临时优先级列表的方式可以为广播。
207、 源接入网设备继续检测源网络的负载；
当源接入网设备向 UE发送临时优先级列表后， 源接入网设备会继续检测 源网络的负载。
208、 当检测到源网络的负载小于第二负载阈值时， 向目标接入网设备发 送信息， 以通知目标接入网设备与源接入网设备一样改向 UE发送原始优先级 列表。
源接入网设备检测源网络的负载是否恢复到正常水平，即源网络的负载小 于第二负载阈值。
当源接入网设备检测到源网络的负载小于第二负载阈值时，向目标接入网 设备发送信息， 以通知目标接入网设备与原接入网设备一样改向 UE发送原始 优先级列表。
具体地，源接入网设备可通过 RIM流程向目标接入网设备发送第一信息， 即向目标接入网设备发送不带异系统重选 SIB的 RIM消息， 该消息用于指示 目标接入网设备与源接入网设备一样改向 UE发送原始优先级列表。
或者源接入网设备向总控节点发送第二信息，以利用总控节点将第二信息 发送给目标接入网设备，第二信息用于指示目标接入网设备与源接入网设备一 样改向 UE发送原始优先级列表。
本实施例中， 源接入网设备通过检测服务小区的负载， 并在服务小区的负 载大于第一负载阈值时，检测源网络的负载，在源网络的负载大于第二负载阈 值， 生成临时优先级列表， 并将临时优先级列表发送给目标接入网设备， 以使 得源接入网设备及目标接入网设备均可以向用户设备 UE发送临时优先级列 表。 本实施例中， 由于服务小区负载过高， 且源网络内部已无其他小区可以进 行负载转移时，源接入网设备将生成的临时优先级列表发送给了目标接入网设 备， 使得源接入网设备及目标接入网设备向 UE发送的均是临时优先级列表， 且在源网络的负载恢复到正常水平时，源接入网设备发送信息通知目标接入网 设备与源接入网设备一样改向 UE发送原始优先级列表， 保证了 UE在不同制 式的网络中所获取的优先级列表是相同的， 避免造成 UE的乒乓重选。
上面两个实施例站在源接入网设备的角度对本发明异制式网络中的通信 方法进行了描述，下面的实施例将站在目标接入网设备的角度对本发明异制式 网络中的通信方法进行描述， 请参阅图 3, 本实施例方法包括：
301、 目标接入网设备接收源接入网设备发送的临时优先级列表； 目标接入网设备接收源接入网设备通过 RIM流程或通过总控节点发送来 的临时优先级列表， 临时优先级列表中包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、和目标网络的频点的优先级。 临时优先级列表中的源 网络的频点的优先级低于目标网络的频点的优先级。
其中， 源接入网设备为将 UE接入到源网络的设备， 目标接入网设备为将 UE接入到目标网络的设备。
302、 目标接入网设备向 UE发送临时优先级列表。
目标接入网设备可通过广播的方式向 UE发送临时优先级列表。
另夕卜，当目标接入网设备接收到源接入网设备发送的用于通知目标接入网 设备改向 UE发送原始优先级列表的信息时， 目标接入网设备就改向 UE发送 原始优先级列表。
本实施例中，当目标接入网设备接收到源接入网设备发送的临时优先级列 表之后， 与源接入网设备一样向 UE发送临时优先级列表， 当目标接入网设备 接收到源接入网设备发送的用于通知目标接入网设备改向 UE发送原始优先级 列表的信息时， 与源接入网设备一样改向 UE发送原始优先级列表， 从而保证 了不同制式网络间的广播消息一致， 因此 UE无论处在哪个网络中， 所获取的 优先级列表均是相同的， 避免造成 UE的乒乓重选。
下面将站在用户设备 UE的角度对本发明异制式网络中的通信方法进行描 述， 请参阅图 4, 本实施例方法包括：
401、 UE接收源接入网设备发送的临时优先级列表；
本实施例中的异制式网络包括第一通信制式的源网络和第二通信制式的 目标网络， 且源接入网设备为将 UE接入到源网络的设备。
UE接收的临时优先级列表中包括源网络的频点、 目标网络的频点、 源网 络的频点的优先级、和目标网络的频点的优先级，且临时优先级列表中的源网 络的频点的优先级^ 于目标网络的频点的优先级。
402、 UE根据临时优先级列表中频点的优先级， 进行网络重选；
UE找出临时优先级列表中优先级最高的频点， 重选到优先级最高的频点 对应的网络， 即目标网路。
403、 当 UE重选接入目标网络时， 接收目标接入网设备发送的临时优先 级列表。
UE在目标网络中， 接收目标接入网设备发送的临时优先级列表， 目标接 入网设备发送给 UE的临时优先级列表与源接入网设备发送给 UE的临时优先 级列表相同。
本实施例中， 当 UE处于源网络时， 接收源接入网设备发送的临时优先级 列表， 当 UE处于目标网络时， 接收目标接入网设备发送的临时优先级列表， 也就是说无论 UE处在异制式网络中的哪一个网络，接收到的优先级列表都是 相同的， 所以可以有效避免乒乓重选。
下面介绍本发明实施例中的接入网设备， 请参阅图 5, 本实施例首先介绍 将 UE接入源网络的设备，即源接入网设备。本实施例的接入网设备 500包括： 优先级列表生成单元 501 , 用于生成临时优先级列表， 其中， 临时优先级 列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网 络的频点的优先级；
发送单元 502, 用于将临时优先级列表发给目标接入网设备， 目标接入网 设备为将 UE接入到目标网络的设备， 以及向 UE发送临时优先级列表。
本实施例中，源接入网设备的优先级列表生成单元将生成的临时优先级列 表发送给了目标接入网设备，所以使得源接入网设备的发送单元及目标接入网 设备均可以向 UE发送临时优先级列表， 即保证了不同制式网络间的广播消息 一致。 因此， 无论 UE处在哪个网络中， 总是可以从网络广播的优先级列表中 选到唯一的优先级最高的频点，从而重选到该频点对应的小区，避免造成乒乓 重选。
为便于理解，下面以一具体实施例对本发明实施例中的接入网设备进行描 述， 请参阅图 6, 本实施例中描述的接入网设备 600仍为源接入网设备， 接入 网设备 600包括：
负载检测单元 601 , 用于检测服务小区的负载， 服务小区为 UE当前驻留 在源网络的小区，当服务小区的负载大于第一负载阈值时，检测源网络的负载， 当源网络的负载大于第二负载阈值时，向其他异制式网络发起负载信息获取请 求，接收其他异制式网络反馈的负载信息， 并根据负载信息寻找负载小于第三 负载阈值的异制式网络， 将负载小于第三负载阈值的异制式网络作为目标网 络， 触发优先级列表生成单元 602生成临时优先级列表；
优先级列表生成单元 602, 用于生成临时优先级列表， 其中， 临时优先级 列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网 络的频点的优先级；
发送单元 603, 用于将临时优先级列表发给目标接入网设备， 目标接入网 设备为将 UE接入到目标网络的设备， 以及向 UE发送临时优先级列表。
为便于理解，下面以一个应用场景对本实施例中接入网设备 600的各单元 之间的交互方式进行描述。
在异制式网络组网的场景中， UE开机后， 向某一网络注册， 注册成功后 驻留在该网络覆盖下某一小区， 此处将 UE 当前所在的网络称为源网络， UE 在源网络中驻留的小区称为服务小区， UE驻留服务小区后， 源接入网设备的 负载检测单元 601 通过检测服务小区的资源利用率或接入服务小区的用户数 来检测服务小区的负载情况。
负载检测单元 601 可以根据服务小区的负载能力预先为服务小区设置一 个负载阈值，即第一负载阈值，当检测到服务小区的负载大于第一负载阈值时， 负载检测单元 601继续检测源网络的负载。
当服务小区的负载过高时，负载检测单元 601需要进一步检测源网络内其 他小区的负载。 如果源网络内其他小区的负载不高， 则 UE可以转移到源网络 内的其他小区， 如果源网络内其他小区的负载均过高， 则负载检测单元 601 需要寻找可进行负载转移的目标网络。
亦即， 当服务小区负载过高时， 是否需要寻找目标网络由源网络的负载决 定。
如果源网络为同频组网，且源网络内部启用了负载均衡策略， 即同一时刻 源网络内各个小区的负载情况大致相同，则负载检测单元 601可根据检测的服 务小区的负载情况推测源网络的负载。如果源网络为异频组网， 则负载检测单 元 601可通过总控节点获取源网络中各个频点的小区的负载情况，然后将源网 络内各个频点的小区的负载累加， 即为源网络的负载。
负载检测单元 601 可根据源网络的网络容量为源网络预先设置第二负载 阈值， 当检测到源网络的负载大于第二负载阈值时，说明源网络的所有小区均 已达到负载极限， 不能再为新的 UE提供服务。
当源网络的负载大于第二负载阈值时，说明源网络内已没有可以进行负载 转移的小区。 此时， 负载检测单元 601需要寻找负载转移的目标网络。
具体地， 负载检测单元 601向其他异制式网络发起负载信息获取请求，接 收其他异制式网络反馈的负载信息，判断其他异制式网络中是否有负载小于第 三负载阈值的异制式网络，第三负载阈值可由负载检测单元 601根据其他异制 式网络的负载容量预先设置， 或由其他异制式网络自行预先设置。
若其他异制式网络中有负载小于第三负载阈值的异制式网络，则负载检测 单元 601将该异制式网络作为负载转移的目标网络。
在负载检测单元 601获取目标网络后，优先级列表生成单元需要对原始优 先级列表中源网络及目标网络的各个频点的优先级及位置进行调整，生成临时 优先级列表。临时优先级列表中源网络的频点的优先级低于目标网络的频点的 优先级。 具体的优先级列表生成单元 602生成临时优先级列表的方法可如下： 第一种方式：
将原始优先级列表中源网络及目标网络的各个频点的优先级及位置重新 分配， 生成临时优先级列表。
假设源网络为 LTE , 且源网络只有一个频点 L1 , 目标网络为 UMTS , 目 标网络有两个频点 U2、 U3。 原始优先级列表中频点 Ll、 U2、 U3的优先级为 分别为 ：
LI ( Priority 7 ), U2 ( Priority 3 ), U3 ( Priority 5 ) ；
原始优先级列表中记录的这三个频点的位置分别为：
LI ( PI ), U3 ( P2 ), U2 ( P3 ); 的优先级相应调高， 目标网络内多个频点的优先级要保持原本的相对高低关 系， 调整后临时优先级列表中各个频点的优先级分别为：
LI ( Priority 3 ), U2 ( Priority 5 ), U3 ( Priority 7 );
对三个频点的位置做相应调整，调整后生成的临时优先级列表中这三个频 点的位置分别为：
LI ( P3 ), U2 ( P2 ), U3 ( P1 )。
第二种方式：
直接忽略源网络中负载较高的部分频点， 生成临时优先级列表。
假设源网络还是 LTE, 源网络有两个频点 Ll、 L2, 且 UE当前驻留的服 务小区的频点为 L1 , 目标网络为 UMTS, 目标网络有一个频点 U3。 原始优先 级列表中频点 Ll、 L2、 U3的优先级为分别为 ：
LI ( Priority 7 ), L2 ( Priority 6 ), U3 ( Priority 2 ) ；
原始优先级列表中记录的这三个频点的位置分别为：
LI ( PI ), L2 ( P2 ), U3 ( P3 );
优先级列表生成单元 602直接忽略源网络中优先级较低的 L2频点， 对剩 余频点的优先级及位置进行调整，调整后生成的临时优先级列表中各个频点的 优先级及位置分别为：
LI ( Priority 2 ), U3 ( Priority 7 ); LI ( P3 ), U3 ( PI )。 UE ^1临时^ ί尤先级 列表中未携带的频点 L2的优先级自动默认为最低。
上述第二种方式仅适用于源网络中有多个频点的情况，上述第一种方式对 源网络及目标网络的频点个数没有要求， 任何情况均适用。
生成临时优先级列表后，发送单元 603将临时优先级列表发送给目标接入 网设备， 以使源接入网设备及目标接入网设备均向 UE发送临时优先级列表。 具体发送单元 603将临时优先级列表发送给目标接入网设备的方式如下。
第一种方式：
通过无线接入网信息管理 （ Radio Access Network Information
Management, RIM ) 流程将临时优先级列表发送给目标接入网设备。
具体地， 发送单元 603可以将临时优先级列表放在 RIM信息的与异构系 统重选相关的系统信息块（System Information Block, SIB ) 中， 用临时优先 级列表替换原始优先级列表， 例如放在 UMTS陆地无线接入网邻区的 SIB 6 结构中发送给目标接入网设备。
源接入网设备与目标接入网设备可以预先约定，一旦目标接入网设备接收 到新的优先级列表（即临时优先级列表） 时， 即向 UE发送新的优先级列表； 或者发送单元 603在向目标接入网设备发送临时优先级列表时，附加一个信元 字段， 注明接收到临时优先级列表后需要改向 UE发送临时优先级列表。
另外，发送单元 603在向目标接入网设备发送临时优先级列表时，还可以 附加另外一个信元字段， 标识临时优先级列表的有效时长， 临时优先级列表的 广播时间一旦超过标识的有效时长， 源接入网设备及目标接入网设备均改向 UE发送原始优先级列表。
第二种方式：
将临时优先级列表发送给总控节点，以利用总控节点将临时优先级列表发 送给目标接入网设备。
具体地，发送单元 603向总控节点发送负载调整请求，发送单元 603在为 临时优先级列表标记有效时长后，将临时优先级列表发送给总控节点， 以使总 控节点将临时优先级列表及有效时长发送给目标接入网设备。总控节点可以是 oss网元， 或者其他具有总控功能的节点。
发送单元 603 可以按照上述两种方式中的任何一种将临时优先级列表发 送给目标接入网设备， 以使在源网络的负载大于第一负载阈值时， 源接入网设 备及目标接入网设备均向 UE发送临时优先级列表， 具体发送单元 603向 UE 发送临时优先级列表的方式可以为广播。
在发送单元 603将临时优先级列表发送给 UE之后， 负载检测单元 601继 续检测源网络的负载，在检测到源网络恢复到正常水平时， 即源网络的负载小 于第二负载阈值时，发送单元 603向目标接入网设备发送信息， 以通知目标接 入网设备与源接入网设备一样改向 UE发送原始优先级列表。
对应地，发送单元 603可通过 RIM流程向目标接入网设备发送第一信息， 即向目标接入网设备发送不带异系统重选 SIB的 RIM消息， 该消息用于指示 目标接入网设备与源接入网设备一样改向 UE发送原始优先级列表。
或者发送单元 603向总控节点发送第二信息，以利用总控节点将第二信息 发送给目标接入网设备，第二信息用于指示目标接入网设备与源接入网设备一 样改向 UE发送原始优先级列表。
本实施例中， 负载检测单元检测服务小区的负载， 并在服务小区的负载大 于第一负载阈值时，检测源网络的负载； 优先级列表生成单元在源网络的负载 大于第二负载阈值时， 生成临时优先级列表，发送单元将临时优先级列表发送 给目标接入网设备， 以使得源接入网设备及目标接入网设备均向 UE发送临时 优先级列表。 本发明实施例中， 由于服务小区的负载过高， 且源网络内已无负 载较低的小区可进行负载转移时，发送单元将优先级列表生成单元生成的临时 优先级列表发送给了目标接入网设备，使得源接入网设备及目标接入网设备向 UE发送的均是临时优先级列表， 且在源网络的负载恢复到正常水平时， 发送 单元发送信息通知目标接入网设备与源接入网设备一样改向 UE发送原始优先 级列表， 保证了 UE在不同制式的网络中所获取的优先级列表是相同的， 避免 造成乒乓重选。
需要说明的是， 本实施例中的发送单元可以为接入网设备（例如， 基站） 的发射机； 另外， 也可以为接入网设备的收发机。 优先级列表生成单元可以为 单独设立的处理器， 也可以集成在接入网设备的某一个处理器中实现， 此外， 也可以以程序代码的形式存储于接入网设备的存储器中，由接入网设备的某一 优先级列表生成单元，且可以与优先级列表生成单元集成在一起，也可以独立 实现。 这里所述的处理器可以是一个中央处理器 （Central Processing Unit, CPU ), 或者是特定集成电路（Application Specific Integrated Circuit, ASIC ), 或者是被配置成实施本发明实施例的一个或多个集成电路。
上面两个实施例描述了源接入网设备， 下面的实施例将描述将 UE接入到 目标网络的设备，即目标接入网设备，请参阅图 7,本实施例的接入网设备 700 包括：
接收单元 701 , 用于接收源接入网设备发送的临时优先级列表， 其中， 临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级， 且源接入网设备为将 UE接入到源网络的设备； 发送单元 702, 用于向 UE发送临时优先级列表。
本实施例中， 接收单元 701可接收源接入网设备通过 RIM流程或通过总 控节点发送来的临时优先级列表，临时优先级列表中的源网络的频点的优先级 低于目标网络的频点的优先级。
发送单元 702可将接收单元 701接收到的临时优先级列表通过广播的方式 发送给 UE。
另夕卜，当接收单元 701接收到源接入网设备发送的用于通知目标接入网设 备改向 UE发送原始优先级列表的信息时， 发送单元 702就改向 UE发送原始 优先级列表。
本实施例中，发送单元在接收单元接收到源接入网设备发送的临时优先级 列表之后， 与源接入网设备一样向 UE发送临时优先级列表， 当接收单元接收 到源接入网设备发送的用于通知目标接入网设备改向 UE发送原始优先级列表 的信息时， 发送单元与源接入网设备一样改向 UE发送原始优先级列表， 从而 保证了不同制式网络间的广播消息一致， 因此 UE无论处在哪个网络中， 所获 取的优先级列表均是相同的， 避免造成 UE的乒乓重选。
需要说明的是， 本实施例中的接收单元可以为接入网设备的接收机，发送 单元可以为接入网设备的发射机； 另外，也可以将接收单元和发送单元集成在 一起构成接入网设备的收发机。且接收单元和发送单元可以与接入网设备的处 理器连接， 以将接收到的数据发送给处理器处理， 或者发送处理器处理后的数 据。这里所述的处理器可以是一个中央处理器（Central Processing Unit, CPU ), 或者是特定集成电路（Application Specific Integrated Circuit, ASIC ), 或者是 被配置成实施本发明实施例的一个或多个集成电路。
下面将描述本发明实施例中的 UE,请参阅图 8,本实施例的 UE 800包括： 接收单元 801 , 用于接收源接入网设备发送的临时优先级列表， 其中， 临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级， 源接入网设备为将 UE接入到源网络的设备； 网络重选单元 802, 用于根据接收单元 801接收到的临时优先级列表中频 点的优先级， 进行网络重选；
接收单元 801还用于，在网络重选单元 802重选接入目标网络时，接收目 标接入网设备从源接入网设备接收的并发送给 UE的临时优先级列表， 目标接 入网设备为将 UE接入到目标网络的设备。
本实施例中， 当 UE处于源网络时， 接收单元接收源接入网设备发送的临 时优先级列表， 网络重选单元根据临时优先级列表重选到目标网络， 当 UE处 于目标网络时，接收单元接收目标接入网设备发送的临时优先级列表，也就是 说无论 UE处在异制式网络中的哪一个网络,接收到的优先级列表都是相同的， 所以可以有效避免乒乓重选。
需要说明的是， 本实施例中的接收单元可以为 UE的接收机； 另外， 也可 以将为 UE的收发机。 网络重选单元可以为单独设立的处理器， 也可以集成在 UE的某一个处理器中实现， 此外， 也可以以程序代码的形式存储于 UE的存 储器中， 由 UE的某一个处理器调用并执行以网络重选单元的功能。 这里所述 的处理器可以是一个中央处理器（Central Processing Unit, CPU ), 或者是特定 集成电路（Application Specific Integrated Circuit, ASIC ), 或者是被配置成实 施本发明实施例的一个或多个集成电路。
下面进一步介绍本发明实施例的接入网设备， 请参阅图 9, 本实施例的接 入网设备为将 UE接入源网络的设备， 即源接入网设备， 本实施例的接入网设 备 900包括： 接收机 901、 发射机 902、 存储器 903和处理器 904。 其中， 接收机 901、 发射机 902、 和存储器 903均与处理器 904连接， 例如， 可以通过总线连接。 当然， 基站还可以包括天线、 基带处理部件、 中射频处理部件、 输入输出装置 等通用部件， 本发明实施例在此不再任何限制。
接收机 901和发射机 902可以集成在一起， 构成收发机。
存储器 903用于存储可执行程序代码， 该程序代码包括计算机操作指令。 存储器 903 可能包含高速 RAM 存储器， 也可能还包括非易失性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 904可以是一个中央处理器（Central Processing Unit, CPU ), 或者 是特定集成电路（Application Specific Integrated Circuit, ASIC ), 或者是被配 置成实施本发明实施例的一个或多个集成电路。
其中， 处理器 904, 用于生成临时优先级列表， 其中， 临时优先级列表包 括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频 点的优先级；
发射机 902, 用于将临时优先级列表发给目标接入网设备， 目标接入网设 备为将 UE接入到目标网络的设备， 以及向 UE发送临时优先级列表。
上述临时优先级列表中的源网络的频点的优先级低于目标网络的频点的 优先级。
处理器 904还用于： 检测服务小区的负载， 服务小区为 UE当前驻留在源 网络的小区， 当服务小区的负载大于第一负载阈值时， 检测源网络的负载， 当 源网络的负载大于第二负载阈值时， 向其他异制式网络发起负载信息获取请 求，接收其他异制式网络反馈的负载信息， 并根据负载信息寻找负载小于第三 负载阈值的异制式网络， 将负载小于第三负载阈值的异制式网络作为目标网 络， 生成临时优先级列表。
其中， 处理器 904检测源网络的负载的方法具体为：
根据检测到的服务小区的负载推测源网络的负载； 或者
通过总控节点获取源网络内所有频点的小区的负载，将源网络内所有频点 的小区的负载累加。
发射机 902将临时优先级列表发送给目标接入网设备的方法具体为： 通过无线接入网信息管理 RIM流程将临时优先级列表发送给目标接入网 设备； 或者
将所述临时优先级列表发送给总控节点，以利用总控节点将临时优先级列 表发送给目标接入网设备。
在发射机 902将临时优先级列表发送给 UE之后，处理器 904继续检测源 网络的负载， 当处理器 904检测到源网络的负载小于第二负载阈值时，发射机 902通过 RIM流程向目标接入网设备发送第一信息， 第一信息用于指示目标 接入网设备与源接入网设备一样改向 UE发送原始优先级列表； 或者
当处理器 904检测到源网络的负载小于第二负载阈值时，发射机 902向总 控节点发送第二信息， 以利用总控节点将第二信息发送给目标接入网设备， 第 二信息用于指示目标接入网设备与源接入网设备一样改向 UE发送原始优先级 列表。
下面进一步介绍本发明实施例的接入网设备， 请参阅图 10, 本实施例的 接入网设备为将 UE接入目标网络的设备， 即目标接入网设备， 本实施例的接 入网设备 1000包括：
接收机 1001、 发射机 1002、 存储器 1003和处理器 1004。 其中， 接收机 1001、 发射机 1002、 和存储器 1003均与处理器 1004连接， 例如， 可以通过 总线连接。 当然， 基站还可以包括天线、 基带处理部件、 中射频处理部件、 输 入输出装置等通用部件， 本发明实施例在此不再任何限制。
接收机 1001和发射机 1002可以集成在一起， 构成收发机。
存储器 1003用于存储可执行程序代码，该程序代码包括计算机操作指令。 存储器 1003 可能包含高速 RAM 存储器， 也可能还包括非易失性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 1004可以是一个中央处理器（ Central Processing Unit, CPU ) , 或 者是特定集成电路（Application Specific Integrated Circuit, ASIC ), 或者是被 配置成实施本发明实施例的一个或多个集成电路。
其中， 处理器 1004用于执行存储器 1003中存储的可执行程序代码； 接收机 1001用于接收源接入网设备发送的临时优先级列表， 其中， 临时 优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和 目标网络的频点的优先级， 且源接入网设备为将 UE接入到源网络的设备； 发射机 1002用于向 UE发送所述临时优先级列表。
其中，临时优先级列表中的源网络的频点的优先级低于目标网络的频点的 优先级。
下面进一步介绍本发明实施例的 UE, 请参阅图 11 , 本实施例的 UE 1100 包括：
接收机 1101、 发射机 1102、 存储器 1103和处理器 1104。 其中， 接收机 1101、 发射机 1102、 和存储器 1103均与处理器 1104连接， 例如， 可以通过总 线连接。 当然， 基站还可以包括天线、 基带处理部件、 中射频处理部件、 输入 输出装置等通用部件， 本发明实施例在此不再任何限制。
接收机 1101和发射机 1102可以集成在一起， 构成收发机。
存储器 1103用于存储可执行程序代码，该程序代码包括计算机操作指令。 存储器 1103 可能包含高速 RAM 存储器， 也可能还包括非易失性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 1104可以是一个中央处理器（ Central Processing Unit, CPU ) , 或 者是特定集成电路 ( Application Specific Integrated Circuit, ASIC ), 或者是被 配置成实施本发明实施例的一个或多个集成电路。
其中，接收机 1101用于接收源接入网设备发送的临时优先级列表， 其中， 临时优先级列表包括源网络的频点、目标网络的频点、源网络的频点的优先级、 和目标网络的频点的优先级， 源接入网设备为将 UE接入到源网络的设备； 处理器 1104, 用于根据临时优先级列表中频点的优先级， 进行网络重选； 接收机 1101还用于： 在处理器 1104重选接入目标网络时， 接收目标接入 网设备从源接入网设备接收的并发送给 UE的临时优先级列表， 目标接入网设 备为将 UE接入到目标网络的设备。
其中，临时优先级列表中的源网络的频点的优先级低于目标网络的频点的 优先级。
另外需说明的是， 以上所描述的装置实施例仅仅是示意性的， 其中所述作 为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的 部件可以是或者也可以不是物理单元， 即可以位于一个地方， 或者也可以分布 到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现 本实施例方案的目的。 另外， 本发明提供的装置实施例附图中， 单元之间的连 接关系表示它们之间具有通信连接，具体可以实现为一条或多条通信总线或信 号线。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发 明可借助软件加必需的通用硬件的方式来实现，当然也可以通过专用硬件包括 专用集成电路、 专用 CPU、 专用存储器、 专用元器件等来实现。 一般情况下， 凡由计算机程序完成的功能都可以很容易地用相应的硬件来实现， 而且， 用来 实现同一功能的具体硬件结构也可以是多种多样的， 例如模拟电路、数字电路 或专用电路等。但是，对本发明而言更多情况下软件程序实现是更佳的实施方 式。基于这样的理解， 本发明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可读取的存储 介质中， 如计算机的软盘， U盘、 移动硬盘、 只读存储器（ROM, Read-Only Memory ), 随机存取存者器（ RAM, Random Access Memory )、 磁碟或者光盘 等， 包括若干指令用以使得一台计算机设备（可以是个人计算机， 服务器， 或 者网络设备等）执行本发明各个实施例所述的方法。
以上对本发明实施例所提供的一种异制式网络中广播消息协同的方法及 接入网设备进行了详细介绍，对于本领域的一般技术人员，依据本发明实施例 的思想， 在具体实施方式及应用范围上均会有改变之处， 因此， 本说明书内容 不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种异制式网络中的通信方法， 其中， 所述异制式网络包括第一通信 制式的源网络和第二通信制式的目标网络，所述方法适用于源网络中的用户设 备 UE重选到目标网络的过程中， 其特征在于， 所述方法包括：
源接入网设备生成临时优先级列表， 其中， 所述临时优先级列表包括源网 络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优 先级， 且所述源接入网设备为将所述 UE接入到源网络的设备；
所述源接入网设备将所述临时优先级列表发给目标接入网设备，所述目标 接入网设备为将所述 UE接入到目标网络的设备；
所述源接入网设备向所述 UE发送所述临时优先级列表。
2、 根据权利要求 1所述的方法， 其特征在于， 所述临时优先级列表中的 源网络的频点的优先级^ 于目标网络的频点的优先级。
3、 根据权利要求 1或 2所述的方法， 其特征在于， 在所述源接入网设备 生成临时优先级列表之前， 还包括：
所述源接入网设备检测服务小区的负载，所述服务小区为所述 UE当前驻 留在所述源网络的小区；
当所述服务小区的负载大于第一负载阈值时，所述源接入网设备检测所述 源网络的负载；
当所述源网络的负载大于第二负载阈值时，触发生成临时优先级列表的步 骤。
4、 根据权利要求 3所述的方法， 其特征在于， 所述源接入网设备检测所 述源网络的负载的方法具体为：
所述源接入网设备根据检测到的所述服务小区的负载推测所述源网络的 负载；
或者所述源接入网设备通过总控节点获取所述源网络内所有频点的小区 的负载， 将所述源网络内所有频点的小区的负载累加。
5、 根据权利要求 3所述的方法， 其特征在于， 在检测到所述源网络的负 载大于第二负载阈值之后， 在触发生成临时优先级列表的步骤之前， 还包括： 所述源接入网设备向其他异制式网络发起负载信息获取请求； 所述源接入网设备接收所述其他异制式网络反馈的负载信息，并根据所述 负载信息寻找负载小于第三负载阈值的异制式网络，将所述负载小于第三负载 阈值的异制式网络作为所述目标网络。
6、 根据权利要求 1或 2所述的方法， 其特征在于， 所述源接入网设备将 所述临时优先级列表发送给所述目标接入网设备的方法具体为：
所述源接入网设备通过无线接入网信息管理 RIM流程将所述临时优先级 列表发送给所述目标接入网设备； 或者
所述源接入网设备将所述临时优先级列表发送给所述总控节点，以利用所 述总控节点将所述临时优先级列表发送给所述目标接入网设备。
7、 根据权利要求 6所述的方法， 其特征在于， 所述源接入网设备将所述 临时优先级列表发送给所述 UE之后， 还包括：
所述源接入网设备继续检测所述源网络的负载；
当所述源接入网设备检测到所述源网络的负载小于所述第二负载阈值时， 所述源接入网设备通过所述 RIM流程向所述目标接入网设备发送第一信息， 所述第一信息用于指示所述目标接入网设备与所述源接入网设备一样改向所 述 UE发送所述原始优先级列表； 或者
当所述源接入网设备检测到所述源网络的负载小于所述第二负载阈值时， 所述源接入网设备向所述总控节点发送第二信息，以利用所述总控节点将所述 第二信息发送给所述目标接入网设备，所述第二信息用于指示所述目标接入网 设备与所述源接入网设备一样改向所述 UE发送所述原始优先级列表。
8、 一种异制式网络中的通信方法， 其中， 所述异制式网络包括第一通信 制式的源网络和第二通信制式的目标网络，所述方法适用于源网络中的用户设 备 UE重选到目标网络的过程中， 其特征在于， 所述方法包括：
目标接入网设备接收源接入网设备发送的临时优先级列表， 其中， 所述临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级，且所述源接入网设备为将所述 UE接入到源网络 的设备， 所述目标接入网设备为将所述 UE接入到目标网络的设备；
所述目标接入网设备向所述 UE发送所述临时优先级列表。
9、 根据权利要求 8所述的方法， 其特征在于， 所述临时优先级列表中的 源网络的频点的优先级^ 于目标网络的频点的优先级。
10、 一种异制式网络中的通信方法， 其中， 所述异制式网络包括第一通信 制式的源网络和第二通信制式的目标网络，所述方法适用于源网络中的用户设 备 UE重选到目标网络的过程中， 其特征在于， 所述方法包括：
所述 UE接收源接入网设备发送的临时优先级列表， 其中， 所述临时优先 级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标 网络的频点的优先级， 所述源接入网设备为将所述 UE接入到源网络的设备； 所述 UE根据所述临时优先级列表中频点的优先级， 进行网络重选； 当所述 UE重选接入所述目标网络时，接收所述目标接入网设备从所述源 接入网设备接收的并发送给所述 UE的所述临时优先级列表，所述目标接入网 设备为将所述 UE接入到目标网络的设备。
11、 根据权利要求 10所述的方法， 其特征在于， 所述临时优先级列表中 的源网络的频点的优先级^ 于目标网络的频点的优先级。
12、 一种接入网设备， 所述接入网设备为将用户设备 UE接入到源网络的 设备， 其特征在于， 所述接入网设备包括：
优先级列表生成单元， 用于生成临时优先级列表， 其中， 所述临时优先级 列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网 络的频点的优先级；
发送单元， 用于将所述临时优先级列表发给目标接入网设备， 所述目标接 入网设备为将所述 UE接入到目标网络的设备， 以及向所述 UE发送所述临时 优先级列表。
13、 根据权利要求 12所述的接入网设备， 其特征在于， 所述临时优先级 列表中的源网络的频点的优先级低于目标网络的频点的优先级。
14、 根据权利要求 12或 13所述的接入网设备， 其特征在于， 还包括： 负载检测单元， 用于检测服务小区的负载， 所述服务小区为所述 UE当前 驻留在所述源网络的小区， 当所述服务小区的负载大于第一负载阈值时，检测 所述源网络的负载， 当所述源网络的负载大于第二负载阈值时，触发所述优先 级列表生成单元生成临时优先级列表。
15、 根据权利要求 14所述的接入网设备， 其特征在于， 所述负载检测单 元检测所述源网络的负载的方法具体为：
所述负载检测单元根据检测到的所述服务小区的负载推测所述源网络的 负载； 或者
所述负载检测单元通过总控节点获取所述源网络内所有频点的小区的负 载， 将所述源网络内所有频点的小区的负载累加。
16、 根据权利要求 14所述的接入网设备， 其特征在于， 所述负载检测单 元在检测到所述源网络的负载大于第二负载阈值之后，在触发所述优先级列表 生成单元生成临时优先级列表之前， 还用于：
向其他异制式网络发起负载信息获取请求，接收所述其他异制式网络反馈 的负载信息， 并才 据所述负载信息寻找负载小于第三负载阈值的异制式网络， 将所述负载小于第三负载阈值的异制式网络作为所述目标网络。
17、 根据权利要求 12或 13所述的接入网设备， 其特征在于， 所述发送单 元将所述临时优先级列表发送给所述目标接入网设备的方法具体为：
所述发送单元通过无线接入网信息管理 RIM流程将所述临时优先级列表 发送给所述目标接入网设备； 或者
所述发送单元将所述临时优先级列表发送给所述总控节点，以利用所述总 控节点将所述临时优先级列表发送给所述目标接入网设备。
18、 根据权利要求 17所述的接入网设备， 其特征在于， 所述负载检测单 元还用于：
在所述发送单元将所述临时优先级列表发送给所述 UE之后，继续检测所 述源网络的负载；
所述发送单元还用于：
在所述负载检测单元检测到所述源网络的负载小于所述第二负载阈值时， 通过所述 RIM流程向所述目标接入网设备发送第一信息， 所述第一信息用于 指示所述目标接入网设备与所述源接入网设备一样改向所述 UE发送所述原始 优先级列表； 或者
当所述负载检测单元检测到所述源网络的负载小于所述第二负载阈值时， 向所述总控节点发送第二信息，以利用所述总控节点将所述第二信息发送给所 述目标接入网设备，所述第二信息用于指示所述目标接入网设备与所述源接入 网设备一样改向所述 UE发送所述原始优先级列表。
19、 一种接入网设备， 所述接入网设备为将用户设备 UE接入到目标网络 的设备， 其特征在于， 所述接入网设备包括：
接收单元， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级，且所述源接入网设备为将所述 UE接入到源网络 的设备；
发送单元， 用于向所述 UE发送所述临时优先级列表。
20、 根据权利要求 19所述的接入网设备， 其特征在于， 所述临时优先级 列表中的源网络的频点的优先级低于目标网络的频点的优先级。
21、 一种用户设备 UE, 其特征在于， 包括：
接收单元， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临 时优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优先级，所述源接入网设备为将所述 UE接入到源网络的 设备；
网络重选单元， 用于根据所述临时优先级列表中频点的优先级， 进行网络 重选；
所述接收单元还用于：
在所述网络重选单元重选接入所述目标网络时，接收所述目标接入网设备 从所述源接入网设备接收的并发送给所述 UE的所述临时优先级列表，所述目 标接入网设备为将所述 UE接入到目标网络的设备。
22、 根据权利要求 21所述的接入网设备， 其特征在于， 所述临时优先级 列表中的源网络的频点的优先级低于目标网络的频点的优先级。
23、 一种接入网设备， 所述接入网设备为将用户设备 UE接入到源网络的 设备， 其特征在于， 所述接入网设备包括：
处理器， 用于生成临时优先级列表， 其中， 所述临时优先级列表包括源网 络的频点、 目标网络的频点、 源网络的频点的优先级、 和目标网络的频点的优 先级；
发射机， 用于将所述临时优先级列表发给目标接入网设备， 所述目标接入 网设备为将所述 UE接入到目标网络的设备， 以及向所述 UE发送所述临时优 先级列表。
24、 根据权利要求 23所述的接入网设备， 其特征在于， 所述临时优先级 列表中的源网络的频点的优先级低于目标网络的频点的优先级。
25、 根据权利要求 23或 24所述的接入网设备， 其特征在于， 所述处理器 还用于：
检测服务小区的负载，所述服务小区为所述 UE当前驻留在所述源网络的 小区， 当所述服务小区的负载大于第一负载阈值时， 检测所述源网络的负载， 当所述源网络的负载大于第二负载阈值时， 生成单元生成临时优先级列表。
26、 根据权利要求 25所述的接入网设备， 其特征在于， 所述处理器检测 所述源网络的负载的方法具体为：
所述处理器根据检测到的所述服务小区的负载推测所述源网络的负载；或 者
所述处理器通过总控节点获取所述源网络内所有频点的小区的负载，将所 述源网络内所有频点的小区的负载累加。
27、 根据权利要求 25所述的接入网设备， 其特征在于， 所述处理器在检 测到所述源网络的负载大于第二负载阈值之后， 在生成临时优先级列表之前， 还用于：
向其他异制式网络发起负载信息获取请求，接收所述其他异制式网络反馈 的负载信息， 并根据所述负载信息寻找负载小于第三负载阈值的异制式网络， 将所述负载小于第三负载阈值的异制式网络作为所述目标网络。
28、 根据权利要求 23或 24所述的接入网设备， 其特征在于， 所述发射机 将所述临时优先级列表发送给所述目标接入网设备的方法具体为：
所述发射机通过无线接入网信息管理 RIM流程将所述临时优先级列表发 送给所述目标接入网设备； 或者
所述发射机将所述临时优先级列表发送给所述总控节点，以利用所述总控 节点将所述临时优先级列表发送给所述目标接入网设备。
29、 根据权利要求 28所述的接入网设备， 其特征在于， 所述处理器还用 于： 在所述发射机将所述临时优先级列表发送给所述 UE之后，继续检测所述 源网络的负载；
所述发射机还用于：
在所述处理器检测到所述源网络的负载小于所述第二负载阈值时，通过所 述 RIM流程向所述目标接入网设备发送第一信息， 所述第一信息用于指示所 述目标接入网设备与所述源接入网设备一样改向所述 UE发送所述原始优先级 列表； 或者
当所述处理器检测到所述源网络的负载小于所述第二负载阈值时，向所述 总控节点发送第二信息，以利用所述总控节点将所述第二信息发送给所述目标 接入网设备，所述第二信息用于指示所述目标接入网设备与所述源接入网设备 一样改向所述 UE发送所述原始优先级列表。
30、 一种接入网设备， 所述接入网设备为将用户设备 UE接入到目标网络 的设备， 其特征在于， 所述接入网设备包括：
接收机， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临时 优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和 目标网络的频点的优先级，且所述源接入网设备为将所述 UE接入到源网络的 设备；
发射机， 用于向所述 UE发送所述临时优先级列表。
31、 根据权利要求 30所述的接入网设备， 其特征在于， 所述临时优先级 列表中的源网络的频点的优先级低于目标网络的频点的优先级。
32、 一种用户设备 UE, 其特征在于， 包括：
接收机， 用于接收源接入网设备发送的临时优先级列表， 其中， 所述临时 优先级列表包括源网络的频点、 目标网络的频点、 源网络的频点的优先级、 和 目标网络的频点的优先级，所述源接入网设备为将所述 UE接入到源网络的设 备；
处理器， 用于根据所述临时优先级列表中频点的优先级， 进行网络重选； 所述接收机还用于：
在所述处理器重选接入所述目标网络时，接收所述目标接入网设备从所述 源接入网设备接收的并发送给所述 UE的所述临时优先级列表，所述目标接入 网设备为将所述 UE接入到目标网络的设备。
33、根据权利要求 32所述的 UE, 其特征在于， 所述临时优先级列表中的 源网络的频点的优先级^ 于目标网络的频点的优先级。
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