CN109756950A - Select method, user terminal and the network side equipment of core net - Google Patents

Select method, user terminal and the network side equipment of core net Download PDF

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Publication number
CN109756950A
CN109756950A CN201711069903.5A CN201711069903A CN109756950A CN 109756950 A CN109756950 A CN 109756950A CN 201711069903 A CN201711069903 A CN 201711069903A CN 109756950 A CN109756950 A CN 109756950A
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China
Prior art keywords
core net
network side
side equipment
core
net
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CN201711069903.5A
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Inventor
刘潇蔓
陈卓
杨光
刘光毅
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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Priority to CN201711069903.5A priority Critical patent/CN109756950A/en
Publication of CN109756950A publication Critical patent/CN109756950A/en
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Abstract

The embodiment of the present invention provides a kind of method, user terminal and network side equipment for selecting core net, it solves for different ability UE, the problem of network side equipment can select core net for it, this method comprises: determining the core net selection preference or UE ability of user terminal UE；According to the core net that the core net of the UE selects preference and the network side equipment to support, or the core net supported according to the UE ability and the network side equipment, the target core network of the UE access is determined.

Description

Select method, user terminal and the network side equipment of core net
Technical field
It is initial attached that the present invention relates to fields of communication technology more particularly to a kind of user equipment (User Equipment, UE) When select core net method, user terminal and network side equipment.
Background technique
In current mechanism, UE has carried out public land mobile network (Public Land Mobile Network, PLMN) After selection and cell selection, need to carry out random access, random access is divided into random access competition-based and based on non-competing Random access, wherein random access competition-based mainly includes four step processes, comprising: random access lead code (Random Access Preamble) (or referred to as message 1 (MSG1)) and random access response (Random Access Response) (either referred to as message 2 (MSG2)), transmitting and scheduling (Scheduled Transmission) (or referred to as message 3 (MSG3)) and Contention resolved (Contention Resolution) (or referred to as message 4 (MSG4)), as Fig. 1 shows.
After UE receives message 4 (MSG4), can send message 5 (MSG5) (such as: RRC (Radio Resource Control, wireless heterogeneous networks) it connects and establishes the attached of Non-Access Stratum (initial NAS) message completed and comprising initialization Request), initial NAS message can be issued core net by base station (Evolved Node B, eNB).
According to third generation partner program (3rd Generation Partnership Project, 3GPP) conclusion, In future network, it will be present and be associated with a variety of wireless access technologys (Radio Access Technology, RAT) under same PLMN The case where (as i.e. there is long term evolution (Long Term Evolution, LTE) to have the 5th third-generation mobile communication technology (fifth- again Generation, 5G) new wireless (New Radio, NR)).In addition, the UE of two kinds of forms also will be present, a kind of UE only supports to drill 5G core net (5GC)-NAS had not only been supported into block core (Evolved Packet Core, EPC)-NAS, another UE but also had been supported EPC-NAS, as shown in Figure 2.
However, (supporting a certain particular core net for different ability UE, or supporting two kinds of core nets), initially adhered to When, eNB how for its select core net be urgent need to resolve the problem of.
Summary of the invention
In view of above-mentioned technical problem, the embodiment of the present invention provides a kind of method, user terminal and network for selecting core net Side apparatus solves the problem of that core net can be selected for different ability UE network side equipments for it.
In a first aspect, providing a kind of method for selecting core net, it is applied to network side equipment, the network side equipment branch The core net held includes at least: the first core net and the second core net, which comprises
Determine the core net selection preference or UE ability of user terminal UE；
According to the core net that the core net of the UE selects preference and the network side equipment to support, or according to the UE The core net that ability and the network side equipment are supported, determines the target core network of the UE access.
Optionally, the core net of the determining UE selects preference, comprising:
According to the first lead code that the UE is sent, the core net selection preference of the UE is determined；Or
The first indicating bit in first message sent according to the UE determines the core net selection preference of the UE.
Optionally, the core net for selecting preference and the network side equipment to support according to the core net of the UE, really The target core network of the fixed UE access, comprising:
Judge the core net selection preference that the network side equipment supports the first core net of access whether to meet the UE；
If the network side equipment supports the first core net of access to meet the core net selection preference of the UE, by institute It states the first core net and is determined as target core network；
If the network side equipment supports the first core net of access to be unsatisfactory for the core net selection preference of the UE, by institute Stating network side equipment supports the second core net of access to be determined as target core network, or sends refusal instruction.
Optionally, the core net supported according to the UE ability and the network side equipment, determines the UE access Target core network, comprising:
Whether the first core net for judging that the network side equipment is supported meets the UE ability；
If the first core net that the network side equipment is supported meets the UE ability, first core net is determined For target core network；
If the first core net that the network side equipment is supported is unsatisfactory for the UE ability, the network side equipment is supported The second core net be determined as target core network, or send refusal instruction.
Second aspect additionally provides a kind of method for selecting core net, is applied to user terminal UE, which comprises
The core net selection preference or UE ability of the UE are sent to network side equipment；
Second message is sent to the network side equipment；
The third message that the network side equipment is sent is received, the third message is used for UE feedback described second Message is forwarded to target core network；
Wherein, the target core network is the network side equipment according to the core net of UE selection preference and the net The network side equipment that the core net that network side apparatus is supported determines or described is according to the UE ability and the network side equipment What the core net of support determined.
Optionally, the core net for sending the UE to network side equipment selects preference, comprising:
The first lead code is sent to the network side equipment, first lead code is selected corresponding to the core net of the UE Preference；Alternatively,
First message is sent to the network side equipment, the first indicating bit in the first message is corresponding to the UE's Core net selects preference.
The third aspect additionally provides a kind of method for selecting core net, is applied to network side equipment, the network side equipment The core net of support includes at least: third core net and the 4th core net, which comprises
Receive the service request that user terminal UE is sent；
According to the service request, determine whether to replace the third core net that the UE is initially accessed.
Optionally, described according to the service request, determine whether to the core net for replacing the UE access, comprising:
Whether the third core net for judging that the UE is initially accessed meets the service request；
If the third core net that the UE is initially accessed meets the service request, keep with the third core net it Between connection；
If the third core net that the UE is initially accessed is unsatisfactory for the service request, disconnect and the third core net Between connection, establish and the network side equipment support the 4th core net between connection.
Fourth aspect additionally provides a kind of method for selecting core net, is applied to user terminal UE, which comprises
The 4th message is sent to the network side equipment, by the network side equipment by the UE access to third core Net；
Service request is sent to the network side equipment, by the network side equipment according to the service request, judgement is The no third core net that replace the UE and be initially accessed.
5th aspect additionally provides a kind of method for selecting core net, is applied to network side equipment, which comprises
The network side equipment is sent to the tenability of core net and the network side equipment and each to user terminal UE The working condition of core network interface；
Receive the core net selection result that the UE is sent；
It is established and the connection between corresponding core net according to the core net selection result.
Optionally, the network side equipment is sent to the tenability of core net and the network side equipment and each core to UE The working condition of heart network interface, comprising:
It sends and broadcasts the message to the UE, the second indicating bit in the broadcast message corresponds to the network side equipment pair The working condition of the tenability of core net and the network side equipment and each core network interface, alternatively,
The 5th message is sent to the UE, the third indicating bit in the 5th message corresponds to the network side equipment pair The working condition of the tenability of core net and the network side equipment and each core network interface.
Optionally, the core net selection result for receiving the UE and sending, comprising:
The second lead code that the UE is sent is received, second lead code selects knot corresponding to the core net of the UE Fruit；Alternatively,
The 6th message that the UE is sent is received, the 4th indicating bit in the 6th message corresponds to the core of the UE Net selection result.
6th aspect additionally provides a kind of method for selecting core net, is applied to user terminal UE, which comprises
Receive tenability and the network side equipment of the network side equipment of network side equipment transmission to core net With the working condition of each core network interface；
According to the network side equipment to the tenability of core net and the network side equipment and each core network interface Working condition determines core net selection result；
The core net selection result is sent to the network side equipment.
Optionally, tenability and the network of the network side equipment of network side equipment transmission to core net are received The working condition of side apparatus and each core network interface, comprising:
Broadcast message is received, the second indicating bit in the broadcast message corresponds to the network side equipment to core net The working condition of tenability and the network side equipment and each core network interface, alternatively,
The 5th message that the network side equipment is sent is received, the third indicating bit in the 5th message corresponds to described Network side equipment is to the tenability of core net and the working condition of the network side equipment and each core network interface.
It is optionally, described to send the core net selection result to the network side equipment, comprising:
The second lead code is sent to the network side equipment, second lead code is selected corresponding to the core net of the UE As a result；Alternatively,
The 6th message is sent to the network side equipment, the 4th indicating bit in the 6th message is corresponding to the UE's Core net selection result.
7th aspect additionally provides a kind of network side equipment, and the core net that the network side equipment is supported includes at least: the One core net and the second core net, comprising: first processor and the first transceiver；
The first processor is used for: determining the core net selection preference or UE ability of user terminal UE；
The first processor is also used to: selecting preference and the network side equipment to support according to the core net of the UE Core net, or the core net supported according to the UE ability and the network side equipment, determine the target core of the UE access Heart net.
Optionally, the first processor is further used for:
According to the first lead code that the UE is sent, the core net selection preference of the UE is determined；Or
The first indicating bit in first message sent according to the UE determines the core net selection preference of the UE.
Optionally, the first processor is further used for:
Judge the core net selection preference that the network side equipment supports the first core net of access whether to meet the UE；
If the network side equipment supports the first core net of access to meet the core net selection preference of the UE, by institute It states the first core net and is determined as target core network；
If the network side equipment supports the first core net of access to be unsatisfactory for the core net selection preference of the UE, by institute Stating network side equipment supports the second core net of access to be determined as target core network, or instruction the first transceiver transmission is refused Instruction absolutely.
Optionally, the first processor is further used for:
Whether the first core net for judging that the network side equipment is supported meets the UE ability；
If the first core net that the network side equipment is supported meets the UE ability, first core net is determined For target core network；
If the first core net that the network side equipment is supported is unsatisfactory for the UE ability, the network side equipment is supported The second core net be determined as target core network, or send refusal instruction.
Eighth aspect additionally provides a kind of user terminal UE, comprising: second processor and the second transceiver, wherein
Second transceiver is used for: the core net selection preference or UE ability of the UE are sent to network side equipment；
Second transceiver is also used to: Xiang Suoshu network side equipment sends second message；
Second transceiver is also used to: receiving the third message that the network side equipment is sent, the third message is used Target core network is forwarded in feeding back the second message to the UE；
Wherein, the target core network is the network side equipment according to the core net of UE selection preference and the net What the core net or the network side equipment that network side apparatus is supported were supported according to the UE ability and the network side equipment What core net determined.
Optionally, second transceiver is further used for:
The first lead code is sent to the network side equipment, first lead code is selected corresponding to the core net of the UE Preference；Alternatively,
First message is sent to the network side equipment, the first indicating bit in the first message is corresponding to the UE's Core net selects preference.
9th aspect additionally provides a kind of network side equipment, and the core net that the network side equipment is supported includes at least: the Three core nets and the 4th core net, comprising: third processor and third transceiver, wherein
The third transceiver is used for: receiving the service request that user terminal UE is sent；
The third processor is used for: according to the service request, determining whether to replace that the UE is initially accessed the Three core nets.
Optionally, the third processor is further used for:
Whether the third core net for judging that the UE is initially accessed meets the service request；
If the third core net that the UE is initially accessed meets the service request, indicate that the third transceiver is kept With the connection between the third core net；
If the third core net that the UE is initially accessed is unsatisfactory for the service request, disconnect and the third core net Between connection, indicate the connection between the third transceiver is established and the network side equipment is supported the 4th core net.
Tenth aspect, additionally provides a kind of UE, comprising: fourth processor and the 4th transceiver, wherein
4th transceiver is used for: Xiang Suoshu network side equipment sends the 4th message, by the network side equipment by institute UE access is stated to third core net；
4th transceiver is also used to: Xiang Suoshu network side equipment sends service request, by the network side equipment root According to the service request, determine whether to replace the third core net that the UE is initially accessed.
On the one hand tenth, additionally provides a kind of network side equipment, comprising: the 5th processor and the 5th transceiver, wherein
5th transceiver is used for: to user terminal UE send the network side equipment to the tenability of core net and The working condition of the network side equipment and each core network interface；
5th transceiver is also used to: receiving the core net selection result that the UE is sent；
5th processor is used for: being established according to core net selection result instruction the 5th transceiver and corresponding Core net between connection.
Optionally, the 5th transceiver is further used for:
It sends and broadcasts the message to the UE, the second indicating bit in the broadcast message corresponds to the network side equipment pair The working condition of the tenability of core net and the network side equipment and each core network interface, alternatively,
The 5th message is sent to the UE, the third indicating bit in the 5th message corresponds to the network side equipment pair The working condition of the tenability of core net and the network side equipment and each core network interface.
Optionally, the 5th transceiver is further used for
The second lead code that the UE is sent is received, second lead code selects knot corresponding to the core net of the UE Fruit；Alternatively,
The 6th message that the UE is sent is received, the 4th indicating bit in the 6th message corresponds to the core of the UE Net selection result.
12nd aspect, additionally provides a kind of user terminal UE, comprising: the 6th processor and the 6th transceiver, wherein
6th transceiver is used for: receiving support energy of the network side equipment to core net of network side equipment transmission The working condition of power and the network side equipment and each core network interface；
6th processor is used for: being set according to the network side equipment to the tenability of core net and the network side The standby working condition with each core network interface determines core net selection result；
6th transceiver is also used to: Xiang Suoshu network side equipment sends the core net selection result.
Optionally, the 6th transceiver is further used for:
Broadcast message is received, the second indicating bit in the broadcast message corresponds to the network side equipment to core net The working condition of tenability and the network side equipment and each core network interface, alternatively,
The 5th message that the network side equipment is sent is received, the third indicating bit in the 5th message corresponds to described Network side equipment is to the tenability of core net and the working condition of the network side equipment and each core network interface.
Optionally, the 6th transceiver is further used for:
The second lead code is sent to the network side equipment, second lead code is selected corresponding to the core net of the UE As a result；Alternatively,
The 6th message is sent to the network side equipment, the 4th indicating bit in the 6th message is corresponding to the UE's Core net selection result.
13rd aspect, additionally provides a kind of network side equipment, comprising: memory, processor, transceiver and being stored in are deposited On reservoir and the computer program that can run on a processor, the processor are realized as described in first when executing described program Select the step in the method for core net；Or the step in the method for selection core net of the realization as described in the third aspect, or Person realizes the step in the method for the selection core net as described in terms of the 5th.
Fourteenth aspect additionally provides a kind of user terminal, comprising: memory, processor, transceiver and is stored in storage On device and the computer program that can run on a processor, the processor is realized when executing described program such as second aspect, the Step in the method for selection core net described in four aspects or the 6th aspect.
15th aspect, additionally provides a kind of computer readable storage medium, is stored thereon with computer program, feature Be, realize when which is executed by processor as in terms of first aspect, second aspect, the third aspect, fourth aspect, the 5th or Step in the method for selection core net described in 6th aspect.
In this way, in embodiments of the present invention, UE is directly to the core net selection preference or UE of network side equipment feedback UE Ability selects preference or UE ability to determine target core network, improves random access by network side equipment according to the core net of UE Success rate.
Detailed description of the invention
Fig. 1 is the schematic diagram of random access procedure competition-based；
Fig. 2 is existing schematic network structure；
Fig. 3 is the configuration diagram of the wireless communication system of the embodiment of the present invention；
Fig. 4 is one of the flow chart of method of the selection core net of the embodiment of the present invention；
Fig. 5 is the two of the flow chart of the method for the selection core net of the embodiment of the present invention；
Fig. 6 is the three of the flow chart of the method for the selection core net of the embodiment of the present invention；
Fig. 7 is the four of the flow chart of the method for the selection core net of the embodiment of the present invention；
Fig. 8 is the five of the flow chart of the method for the selection core net of the embodiment of the present invention；
Fig. 9 is the six of the flow chart of the method for the selection core net of the embodiment of the present invention；
Figure 10 is the seven of the flow chart of the method for the selection core net of the embodiment of the present invention；
Figure 11 is the eight of the flow chart of the method for the selection core net of the embodiment of the present invention；
Figure 12 is the nine of the flow chart of the method for the selection core net of the embodiment of the present invention；
Figure 13 is one of the structure chart of network side equipment of the embodiment of the present invention
Figure 14 is one of the structure chart of UE of the embodiment of the present invention；
Figure 15 is the two of the structure chart of the network side equipment of the embodiment of the present invention
Figure 16 is the two of the structure chart of the UE of the embodiment of the present invention；
Figure 17 is the three of the structure chart of the network side equipment of the embodiment of the present invention
Figure 18 is the three of the structure chart of the UE of the embodiment of the present invention；
Figure 19 is the four of the structure chart of the network side equipment of the embodiment of the present invention；
Figure 20 is the four of the structure chart of the UE of the embodiment of the present invention.
Specific embodiment
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings His attached drawing.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.
Term " first " and " second " in the specification and claims of the embodiment of the present invention etc. are for distinguishing not Same object, rather than it is used for the particular order of description object.For example, the first indicating bit and the second indicating bit etc. are for distinguishing Different indicating bits, rather than the particular order for describing indicating bit.
In embodiments of the present invention, " illustrative " or " such as " etc. words for indicate make example, illustration or explanation.This Be described as in inventive embodiments " illustrative " or " such as " any embodiment or design scheme be not necessarily to be construed as comparing Other embodiments or design scheme more preferably or more advantage.Specifically, use " illustrative " or " such as " etc. words purport Related notion is being presented in specific ways.
The embodiment of the present invention is introduced with reference to the accompanying drawing.The method of selection core net provided in an embodiment of the present invention is used Family terminal and network side equipment can be applied in wireless communication system.The wireless communication system can be for using the 5th generation (5th Generation, 5G) mobile communication technology system (below be referred to as 5G system), referring to Fig. 3, mentioned for the embodiment of the present invention A kind of configuration diagram of the wireless communication system supplied.As shown in figure 3, the wireless communication system may include network side equipment 30 And user terminal, such as it is denoted as UE31, UE 31 can be communicated with network side equipment 30.Above-mentioned each equipment in practical applications Between connection can intuitively indicate connection relationship between each equipment for convenience to be wirelessly connected, using real in Fig. 3 Line signal.
It should be noted that above-mentioned communication system may include multiple UE, network side equipment and can be with multiple UE communications (transmission signaling or transmission data).
Network side equipment provided in an embodiment of the present invention can be base station, which can be conventionally used base It stands, or evolved base station (evolved node base station, eNB) can also be the network side in 5G system Equipment (such as next-generation base station (next generation node base station, gNB) or send and receive a little (transmission and reception point, TRP)) etc. equipment.
User terminal provided in an embodiment of the present invention can be mobile phone, tablet computer, laptop, super mobile personal Computer (Ultra-Mobile Personal Computer, UMPC), net book or personal digital assistant (Personal Digital Assistant, PDA) etc..
Referring to fig. 4, the process of the method for selection core net is shown in figure, executing subject is network side equipment, network side The core net that equipment is supported includes at least: the first core net and the second core net, the specific steps are as follows:
Step 401, the core net selection preference or UE ability for determining UE；
The core net selection preference of above-mentioned UE is used to indicate the preference of UE selection core network access, such as to selecting the first core The preference of heart net perhaps the preference to the second core net of selection or to the core net of access without preference etc..
Above-mentioned UE ability (UE category) is the collection of a series of wireless performance parameter that can be changed in upstream or downstream It closes.Many radio characteristics, such as the radio characteristics comprising selecting which kind of core net are contained in UE ability.
In step 401, network side equipment can determine the core net selection preference of UE according to following manner:
Mode 1, the first lead code sent according to UE determine that the core net selection preference of UE, first lead code are corresponding The core net selection preference of UE, such as the first lead code expression the second core net of selection of the first kind, the first of Second Type Lead code indicates that the second core net of selection, the first lead code of third type indicate to obey network side equipment management, and UE is to access Core net without preference.First lead code can carry in MSG1, certainly it should be noted that in embodiments of the present invention The carrying mode of the first lead code is not limited.
Mode 2, according to UE send first message in the first indicating bit, determine the UE core net selection preference. The first message can be MSG3 or MSG5, and the bit number of first indicating bit is 1bit, if UE learns network side equipment only Support a kind of core net or support two kinds of core nets but only with the interface of a certain core net (such as NG1 or S1) normally, then UE can Can generate corresponding NAS message, the first indicating bit is emptied or UE carries out cell reselection, and another network formats are supported in selection Cell；If UE learns that network side equipment supports two kinds of core nets and network side equipment and the interface of two kinds of core nets are just Often, the first indicating bit is 1, indicates that core net selects preference for 5G NGC；First indicating bit is 0, indicates that core net selects preference For LTE EPC；First indicating bit empties, and indicates that UE coreless net selects preference, network side equipment can be handled voluntarily.
In step 401, network side equipment can determine UE ability according to following manner:
Mode 1, network side equipment are requested to UE initiating capacity, and UE sends UE ability to network side equipment.
Mode 2, UE were once linked into the network side equipment, which has obtained the UE ability.
Mode 3, UE are sent to network side equipment before initial access, by UE ability.
Step 402, the core net for selecting preference and network side equipment to support according to the core net of UE, or according to UE ability The core net supported with network side equipment, determines the target core network of UE access.
Mode 1, based on UE core net selection preference determine target core network.
Concrete mode is as follows: judging the core net selection that network side equipment supports the first core net of access whether to meet UE Preference；If network side equipment supports the first core net of access to meet the core net selection preference of UE, and the first core net is true It is set to target core network；If network side equipment supports the first core net of access to be unsatisfactory for the core net selection preference of UE, by net Network side apparatus supports the second core net of access to be determined as target core network, or sends refusal instruction to UE.
Mode 2 determines target core network based on UE ability selection preference.
Concrete mode is as follows: whether the first core net for judging that network side equipment is supported meets UE ability；If network side is set Standby the first core net supported meets the UE ability, then the first core net is determined as target core network；If network side equipment The first core net supported is unsatisfactory for UE ability, and the second core net that network side equipment is supported is determined as target core network, or Person sends refusal instruction to UE.
In this way, in embodiments of the present invention, UE is directly to the core net selection preference or UE of network side equipment feedback UE Ability selects preference or UE ability to determine target core network, improves random access by network side equipment according to the core net of UE Success rate.
Referring to Fig. 5, the process of the method for selection core net is shown in figure, the executing subject of this method is UE, specific to walk It is rapid as follows:
Step 501, the core net selection preference or UE ability that UE is sent to network side equipment；
The core net selection preference of above-mentioned UE is used to indicate the preference of UE selection core network access, such as to selecting the first core The preference of heart net perhaps the preference to the second core net of selection or to the core net of access without preference etc..
Above-mentioned UE ability (UE category) is the collection of a series of wireless performance parameter that can be changed in upstream or downstream It closes.Many radio characteristics, such as the radio characteristics comprising selecting which kind of core net are contained in UE ability.
In step 501, UE can select preference to the core net that network side equipment sends UE in the following manner:
Mode 1 sends the first lead code to network side equipment, and the first lead code is inclined corresponding to the core net selection of the UE It is good；The core net of the first lead code corresponding UE selects preference, such as the first lead code of the first kind to indicate the selection first kind Core net, the first lead code of Second Type indicate that the second class core net of selection, the first lead code of third type indicate to obey Network side equipment management, UE is to the core net of access without preference.
Mode 2 sends first message to network side equipment, and the first indicating bit in first message corresponds to the core net of UE Select preference.The first message can be MSG3 or MSG5, and the bit number of first indicating bit is 1bit, if UE learns network Side apparatus only support a kind of core net or support two kinds of core nets but only with the interface of a certain core net (such as NG1 or S1) just Often, then UE can generate corresponding NAS message, and the first indicating bit empties or UE carries out cell reselection, and selection is supported another The cell of network formats；If UE learns that network side equipment supports connecing for two kinds of core nets and network side equipment and two kinds of core nets Mouth is normal, and the first indicating bit is 1, indicates that core net selects preference for NGC；First indicating bit is 0, indicates that core net selection is inclined It is well LTE EPC；First indicating bit empties, and indicates that UE coreless net selects preference, network side equipment can be handled voluntarily.
Step 502 sends second message to network side equipment；
Above-mentioned second message can be NAS message.
Step 503 receives the third message that network side equipment is sent, and third message is used for UE feedback second message forwarding To target core network；
Wherein, target core network is the core that network side equipment selects preference and network side equipment to support according to the core net of UE What heart net or network side equipment were determined according to the core net that UE ability and network side equipment are supported.
In this way, in embodiments of the present invention, UE is directly to the core net selection preference or UE of network side equipment feedback UE Ability selects preference or UE ability to determine target core network, improves random access by network side equipment according to the core net of UE Success rate.
Referring to Fig. 6, the process of the method for selection core net is shown in figure, the executing subject of this method sets for network side Standby, the core net that network side equipment is supported includes at least: third core net and the 4th core net, the specific steps are as follows:
Step 601 receives the service request that UE is sent；
Above-mentioned service request can be the request for the business supported for third core net, be also possible to for the 4th core The service request supported is netted, does not limit the concrete type of the service request in embodiments of the present invention.
It should be noted that before step 601, network side equipment is by UE access to third core net, the third core Net is the core net that the needs of UE default access.
Step 602, according to service request, determine whether to the third core net that replacement UE is initially accessed.
Concrete mode is as follows: whether the third core net for judging that UE is initially accessed meets service request；If UE is initially accessed Third core net meet the service request, then keep and third core net between connection；If what the UE was initially accessed Third core net is unsatisfactory for the service request, then disconnects the connection between the third core net, establish and the network The connection between the 4th core net that side apparatus is supported.
Such as: UE initiates a certain business, and network side equipment judges the default core that UE is initially accessed after receiving service request Whether net is able to satisfy business demand, it is assumed that the core net that UE is initially accessed is LTE EPC, and the business of UE (is cut with Slicing Piece) it is related, need to be linked into 5G NGC, network side equipment initiates the core net handoff procedure to UE: disconnecting the core having connected Net, and NAS message is forwarded to another core net, complete the processes such as registers kernel network.
In this way, setting UE defaults the core net of access, change core net again when there is business demand, simplifies access process.
Referring to Fig. 7, the process of the method for selection core net is shown in figure, the executing subject of this method is UE, specific to walk It is rapid as follows:
Step 701, Xiang Suoshu network side equipment send the 4th message, by the network side equipment by the UE access to the Three core nets；
Above-mentioned 4th message can be NAS message；Above-mentioned third core net is the core net of UE default access.
Step 702 is determined whether to network side equipment transmission service request by network side equipment according to service request Replace the third core net that UE is initially accessed.
In this way, setting UE defaults the core net of access, change core net again when there is business demand, simplifies access process.
Referring to Fig. 8, the flow chart of the method for selection core net is shown in figure, executing subject is network side equipment, specifically Steps are as follows:
Step 801 connects the tenability and network side equipment of core net with each core net to UE transmission network side equipment The working condition of mouth；
Above-mentioned network side equipment is to the tenability of core net for indicating which kind of core net network side equipment supports.
The working condition of above-mentioned network side equipment and each core network interface is used to indicate that interface is normal or interface is abnormal.
Mode 1 sends broadcast message to UE, and the second indicating bit in broadcast message corresponds to network side equipment to core net Tenability and network side equipment and each core network interface working condition, the bit number of second indicating bit can be 2bit is certainly not limited to this.
Mode 2 sends the 5th message (such as MSG2 or MSG4) to UE, and the third indicating bit in the 5th message corresponds to net Network side apparatus to the tenability and network side equipment of core net and the working condition of each core network interface, the third indicating bit Bit number can be 2bit, be certainly not limited to this.
Step 802 receives the core net selection result that UE is sent；
Mode 1 receives the second lead code that UE is sent, and the second lead code corresponds to the core net selection result of UE.Such as Second lead code of the first kind indicates that core net selection result is LTE EPC, and the second lead code of Second Type indicates core Net selection result is 5G NGC, is certainly not limited to this.
Mode 2 receives the 6th message that UE is sent, and the 4th indicating bit in the 6th message corresponds to the core net of the UE The bit number of selection result, the third indicating bit can be 1bit, be certainly not limited to this.
Step 803 is established and the connection between corresponding core net according to core net selection result.
In this way, whether the core net and corresponding core network interface of its support of network side equipment notice UE work normally, keep away Exempt to repeat to initiate access.
Referring to Fig. 9, the process of the method for selection core net, executing subject UE are shown in figure, the specific steps are as follows:
Step 901, tenability and network side of the network side equipment to core net for receiving network side equipment transmission The working condition of equipment and each core network interface；
Mode 1 receives broadcast message, and the second indicating bit in the broadcast message corresponds to the network side equipment to core The bit number of the working condition of the tenability of heart net and the network side equipment and each core network interface, second indicating bit can Think 2bit, is certainly not limited to this；
Mode 2 receives the 5th message (such as MSG2 or MSG4) that the network side equipment is sent, in the 5th message Third indicating bit correspond to the network side equipment to the tenability of core net and the network side equipment and each core net The bit number of the working condition of interface, the third indicating bit can be 2bit, be certainly not limited to this.
Step 902, tenability and network side equipment according to network side equipment to core net and each core network interface Working condition determines core net selection result；
Step 903 sends core net selection result to network side equipment.
Mode 1 sends the second lead code to network side equipment, and second lead code is selected corresponding to the core net of the UE Select result；Such as the second lead code of the first kind indicates that core net selection result is LTE EPC, the second of Second Type is leading Code indicates that core net selection result is 5G NGC, is certainly not limited to this.
Mode 2, Xiang Suoshu network side equipment send the 6th message (MSG3 or MSG5), and the 4th in the 6th message refers to Show that position corresponds to the core net selection result of the UE, the bit number of the third indicating bit can be 1bit, be certainly not limited to This.
If UE knows tenability and network side equipment and each core of the network side equipment to core net by broadcast mode The working condition of heart network interface, which can feed back core net selection result by lead code, or third is carried in MSG5 Indicating bit indicates core net selection result.
If UE knows network side equipment to the tenability and network side equipment of core net and each by MSG2 or MSG4 The working condition of core network interface, which, which can carry third indicating bit by MSG3 or MSG5, indicates core net selection result.
In this way, whether the core net and corresponding core network interface of its support of network side equipment notice UE work normally, keep away Exempt to repeat to initiate access.
Referring to Figure 10, the process of selection core net is shown in figure, the specific steps are as follows:
Step 1001, UE send core net selection preference or UE ability to eNB；
UE initiates random access and initial attaching process after entering in eNB coverage area.ENB does not broadcast the branch to core net Hold ability.ENB can select preference by a certain core net for obtaining UE in following methods:
Mode a:UE selects different Preamble, such as Preamble is classified, and first kind Preamble indicates selection LTE EPC, the second class Preamble indicates that selection 5G NGC, third class Preamble indicate to obey eNB management, to the core of access Heart net is without preference；
Mode b: the finger of predetermined bit (bit) is carried in upstream message (such as message 3 (MSG3) or message 5 (MSG5)) Show position (such as the indicating bit is 1bit), which indicates that core net selects preference.Such as:
If UE learns that eNB only supports a kind of core net or supports two kinds of core nets but the only interface with a certain core net (such as NG1 or S1) normally, then UE can generate corresponding NAS message, and indicating bit empties or UE carries out cell reselection, The cell of another network formats is supported in selection；
If UE learns that eNB supports two kinds of core nets and eNB and the interface of two kinds of core nets are normal, indicating bit 1, table Show that core net selects preference for NGC；Indicating bit is 0, indicates that core net selects preference for LTE EPC；Indicating bit empties, and indicates UE Coreless net selects preference, and eNB can be handled voluntarily.
Mode c:eNB is requested to UE initiating capacity or UE was once linked into the eNB, and eNB selects core according to UE ability for it Net.
Mode d:UE first sends UE ability to eNB before initial access.
Step 1002, UE send NAS message to eNB；
Step 1003, eNB judge whether the core net selection preference selection for meeting UE or UE ability；
Step 1004, the feedback message that eNB sends NAS message forwarding to UE and core net selects.
ENB obtains the core net selection preference or UE ability of UE, if eNB supports the core net or its branch of access UE selection The core net held is able to satisfy UE Capability Requirement, then the NAS message of UE is forwarded to corresponding core net, completes initial attachment；It is no Then, eNB is incited somebody to action:
A) refusal instruction is sent to UE, such as eNB only supports the core net different from the core net of UE selection preference, it is assumed that If the core net of UE selects preference for NGC, and eNB is only worked normally with the interface of EPC；
B) NAS message of UE is forwarded to another core net, and sends a change instruction to UE.Such as: eNB is only supported The core net different from the core net of UE selection preference, it is assumed that the core net of UE selects preference for NGC, eNB and ECP's and NGC Interface works normally, and the NAS message of UE is forwarded to ECP.
It should be noted that NAS message is carried in MSG5, may be a piece of news in MSG2.
Referring to Figure 11, the process of the method for selection core net is shown in figure, the specific steps are as follows:
Step 1101, UE send NAS message to eNB；
ENB sets the default core network access of serviced UE, such as initially all default is linked into EPC to all UE, and caches The NAS message of UE.
Step 1102, UE send service request to eNB；
Step 1103, eNB determine whether to the core net of replacement UE access according to service request；
Such as: UE initiates a certain business, and whether eNB receives the default core net for judging that UE is initially accessed after service request and can Meet business demand, it is assumed that the core net that UE is initially accessed is LTE EPC, and the business of UE is related to Slicing (slice), is needed It is linked into 5G NGC, eNB initiates the core net handoff procedure to UE: disconnecting the core net having connected, and NAS message is forwarded To another core net, the processes such as registers kernel network are completed.
Referring to Figure 12, the process of the method for selection core net is shown in figure, the specific steps are as follows:
Step 1201, UE obtain eNB to the tenability and eNB of core net and the working condition of each core network interface；
UE obtains tenability and eNB of the eNB to core net and the relevant information with each core network interface, can specifically adopt With the following methods:
The broadcast of mode a, eNB:
For example, increasing indicating bit in a certain system information, indicate whether eNB and core network interface currently work normally. Below by taking indicating bit is 2 bits as an example:
If indicating bit does not carry any value, indicate that NG1 and S1 interface is normal；
If indicating bit is 10, indicate that NG1 interface is normal, S1 interface is abnormal；
If indicating bit is 01, indicate that S1 interface is normal, NG1 interface is abnormal, can both be linked into simultaneously comprising eNB here EPC and NGC, the only normal situation of EPC interface, and include that eNB can be only linked on EPC and the case where when S1 is normal；
If indicating bit is 00, indicates that NG1 interface and S1 interface are abnormal, both can be linked into EPC simultaneously comprising eNB here And the abnormal situation of NGC, S1 and NG1 interface, and include that eNB can be only linked on EPC and the case where when S1 is abnormal.
Mode b, dedicated signaling:
Increase indicating bit in downstream message (such as MSG2 or MSG4 of random access), indicates the support energy to core net Whether power and eNB and core network interface currently work normally.Below by taking indicating bit is 2 bits as an example:
If indicating bit does not carry any value, indicate that NG1 and S1 interface is normal；
If indicating bit is 10, indicate that NG1 interface is normal, S1 interface is abnormal；
If indicating bit is 01, indicate that S1 interface is normal, NG1 interface is abnormal, can both be linked into simultaneously comprising eNB here EPC and NGC, the only normal situation of EPC interface, and include that eNB can be only linked on EPC and the case where when S1 is normal.
If indicating bit be 00, indicate NG1 and SI interface it is abnormal, here both comprising eNB can be linked into simultaneously EPC and The abnormal situation of NGC, S1 and NG1 interface, and include that eNB can be only linked on EPC and the case where when S1 is abnormal.
Step 1202, UE send core net selection result to eNB；
UE is according to the eNB of acquisition to feedback core net selection result after the tenability of core net and the working condition of interface With corresponding NAS message.
Mode a: if knowing that eNB, can be by following to the tenability and interface case of core net by broadcast mode Mode feeds back core net selection result:
(1) different Preamble is selected, such as Preamble is classified, the Preamble of the first kind indicates core net Selection result is LTE EPC, and the Preamble of Second Type indicates that core net selection result is 5G NGC；
(2) indicating bit for indicating core net selection result is carried in upstream message (such as MSG5).
If UE learns that eNB only supports a kind of core net or supports two kinds of core nets but the only interface with a certain core net (NG1 or S1) normally, then UE can generate corresponding NAS message, and indicating bit empties or UE carries out cell reselection, selection Support the cell of another standard；
If UE learns that eNB supports two kinds of core nets and eNB and the interface of two core nets are normal, such as: indicating bit is 1, expression will be linked into 5G NGC；Indicating bit is 0, and expression is linked into EPC；If the indicating bit empties, then it represents that UE without preference, ENB can be handled voluntarily.
Mode b: if UE is known eNB to the tenability of core net and connect by downstream message (such as MSG2 or MSG4) Mouth situation, then pass through the indicating bit for carrying in upstream message (such as MSG3 or MSG5) and indicating core net selection result.
If UE learns that eNB only supports a kind of core net or supports two kinds of core nets but the only interface with a certain core net (NG1 or S1) normally, then corresponding NAS message can be generated in UE, and indicating bit empties or UE carries out cell reselection, selection branch Hold the cell of another standard；
If UE learns that eNB supports two kinds of core nets and eNB and the interface of two core nets are normal, such as indicating bit is 1, Expression will be linked into 5G NGC；Indicating bit is 0, and expression is linked into EPC；If the indicating bit empties, then it represents that UE without preference, ENB can be handled voluntarily.
NAS message is forwarded to corresponding core net by step 1203, eNB；
Such as: eNB can the type according to Preamble or the indicating bit according to UE band in upstream message (such as MSG5) Judge which core net is NAS information is sent to, work entered with continued access after the completion.
The embodiment of the present invention is introduced below with reference to concrete scene:
Scene 1:UE reads broadcast message, learns the eNB support 5G NGC that not only supported LTE EPC again, and connect with core net Mouth is normal, and UE initiates random access channel (Random Access Channel, RACH) process, by core net in MSG5 NAS information is sent to 5G NGC by the indicating positions 1 of selection, eNB.
Scene 2:UE reads broadcast message, learns the eNB support 5G NGC that not only supported LTE EPC again, and connect with core net Mouth is normal, and UE initiates RACH process, and selection represents the Preamble of LTE, and eNB knows the core net selection knot of UE after receiving NAS message is given to LTE EPC after the NAS message for receiving MSG5 carrying by fruit.
Scene 3:UE initiates RACH process, when receiving the MSG2 that eNB is sent, knows that eNB supports LTE EPC to support 5G again NGC, but the interface of eNB and LTE EPC is abnormal, and UE generates NAS message and issues eNB in MSG 5, and NAS message is transmitted to by eNB 5G NGC。
Scene 4:UE initiates RACH process, when receiving the MSG 2 that eNB is sent, knows that eNB supports LTE to support NR again, and ENB and the interface of core net are normal, and UE generates NAS message and issues eNB in MSG5, and the indicating bit of MSG5 empties, and eNB is received A certain core net (LTE EPC or 5G NGC) is issued after.
Scene 5:UE reads broadcast message, learns the eNB support 5G NGC that not only supported LTE EPC again, but connect with 5G NGC Mouth is abnormal, and UE initiates cell reselection.
Scene 6:UE initiates initial attaching process after reporting UE ability to eNB, eNB learns that UE is supported according to UE ability Slicing, and combine the working condition of eNB and core network interface, UE is initially adhered in the NAS message sent be forwarded to 5G NGC。
Referring to Figure 13, the structure of network side equipment is shown in figure, the core net which supports is at least It include: the first core net and the second core net, network side equipment 1300 includes: first processor 1301 and the first transceiver 1302；
The first processor 1301 is used for: determining the core net selection preference or UE ability of user terminal UE；
The first processor 1301 is also used to: selecting preference and the network side equipment branch according to the core net of the UE The core net held, or the core net supported according to the UE ability and the network side equipment, determine the mesh of the UE access Mark core net.
In embodiments of the present invention, optionally, the first processor 1301 is further used for: being sent according to the UE First lead code determines the core net selection preference of the UE；Or first in the first message sent according to the UE refers to Show position, determines the core net selection preference of the UE.
In embodiments of the present invention, optionally, the first processor 1301 is further used for: judging that the network side is set Whether standby the first core net for supporting access meets the core net selection preference of the UE；If the network side equipment supports access The first core net meet the UE core net selection preference, then first core net is determined as target core network；If The network side equipment supports the first core net of access to be unsatisfactory for the core net selection preference of the UE, and the network side is set Standby the second core net for supporting access is determined as target core network, or sends refusal instruction.
In embodiments of the present invention, optionally, first processor 1301 is further used for: judging the network side equipment branch Whether the first core net held meets the UE ability；If the first core net that the network side equipment is supported meets the UE energy First core net is then determined as target core network by power；If the first core net that the network side equipment is supported is unsatisfactory for The UE ability, the second core net that the network side equipment is supported are determined as target core network, or send refusal instruction, Or the first transceiver of instruction sends refusal instruction.
Referring to Figure 14, the structure of UE is shown in figure, which includes: second processor 1401 and the second transceiver 1402, wherein
Second transceiver 1402 is used for: the core net selection preference or UE energy of the UE are sent to network side equipment Power；
Second transceiver 1402 is also used to: Xiang Suoshu network side equipment sends second message；
Second transceiver 1402 is also used to: receiving the third message that the network side equipment is sent, the third disappears Breath is forwarded to target core network for feeding back the second message to the UE；
Wherein, the target core network is the network side equipment according to the core net of UE selection preference and the net What the core net or the network side equipment that network side apparatus is supported were supported according to the UE ability and the network side equipment What core net determined.
In embodiments of the present invention, optionally, second transceiver 1402 is further used for: Xiang Suoshu network side equipment The first lead code is sent, first lead code selects preference corresponding to the core net of the UE；Alternatively, being set to the network side Preparation send first message, and the first indicating bit in the first message selects preference corresponding to the core net of the UE.
Referring to Figure 15, the structure of network side equipment is shown in figure, the core net which supports is at least It include: third core net and the 4th core net, the network side equipment 1500: third processor 1501 and third transceiver 1502, Wherein,
The third transceiver 1502 is used for: receiving the service request that user terminal UE is sent；
The third processor 1501 is used for: according to the service request, determining whether to replace the UE initial access Third core net.
In embodiments of the present invention, optionally, the third processor 1501 is further used for: judging that the UE initially connects Whether the third core net entered meets the service request；It is asked if the third core net that the UE is initially accessed meets the business It asks, then indicates that the third transceiver keeps the connection between the third core net；If the third that the UE is initially accessed Core net is unsatisfactory for the service request, then disconnects the connection between the third core net, indicate the third transceiver Establish the connection between the 4th core net of network side equipment support.
Referring to Figure 16, the structure of UE is shown in figure, the UE1600: fourth processor 1601 and the 4th transceiver 1602, Wherein,
4th transceiver 1602 is used for: Xiang Suoshu network side equipment sends the 4th message, by the network side equipment By the UE access to third core net；
4th transceiver 1602 is also used to: Xiang Suoshu network side equipment sends service request, is set by the network side For the third core net for according to the service request, determining whether to replace the UE initial access.
Referring to Figure 17, the structure of network side equipment is shown in figure, which includes: the 5th processor 1701 and the 5th transceiver 1702, wherein
5th transceiver 1702 is used for: the support energy for sending the network side equipment to core net to user terminal UE The working condition of power and the network side equipment and each core network interface；
5th transceiver 1702 is also used to: receiving the core net selection result that the UE is sent；
5th processor 1701 is used for: according to the core net selection result indicate the 5th transceiver establish with Connection between corresponding core net.
In embodiments of the present invention, optionally, the 5th transceiver 1702 is further used for:
It sends and broadcasts the message to the UE, the second indicating bit in the broadcast message corresponds to the network side equipment pair The working condition of the tenability of core net and the network side equipment and each core network interface, alternatively,
The 5th message is sent to the UE, the third indicating bit in the 5th message corresponds to the network side equipment pair The working condition of the tenability of core net and the network side equipment and each core network interface.
In embodiments of the present invention, optionally, the 5th transceiver 1702 is further used for:
The second lead code that the UE is sent is received, second lead code selects knot corresponding to the core net of the UE Fruit；Alternatively,
The 6th message that the UE is sent is received, the 4th indicating bit in the 6th message corresponds to the core of the UE Net selection result.
Referring to Figure 18, the structure of UE is shown in figure, which includes: the 6th processor 1801 and the 6th transceiver 1802, wherein
6th transceiver 1802 is used for: receiving branch of the network side equipment to core net of network side equipment transmission Hold the working condition of ability and the network side equipment and each core network interface；
6th processor 1801 is used for: tenability and the network according to the network side equipment to core net The working condition of side apparatus and each core network interface determines core net selection result；
6th transceiver 1802 is also used to: Xiang Suoshu network side equipment sends the core net selection result.
In embodiments of the present invention, optionally, the 6th transceiver 1802 is further used for:
Broadcast message is received, the second indicating bit in the broadcast message corresponds to the network side equipment to core net The working condition of tenability and the network side equipment and each core network interface, alternatively,
The 5th message that the network side equipment is sent is received, the third indicating bit in the 5th message corresponds to described Network side equipment is to the tenability of core net and the working condition of the network side equipment and each core network interface.
In embodiments of the present invention, optionally, the 6th transceiver 1802 is further used for:
The second lead code is sent to the network side equipment, second lead code is selected corresponding to the core net of the UE As a result；Alternatively,
The 6th message is sent to the network side equipment, the 4th indicating bit in the 6th message is corresponding to the UE's Core net selection result.
The embodiment of the present invention provides a kind of network side equipment, and Figure 19 shows that network side provided in an embodiment of the present invention is set Standby structural schematic diagram.As shown in figure 19, network side equipment 1900 includes: processor 1901, transceiver 1902, memory 1903 And bus interface.
Wherein, processor 1901 can be responsible for managing bus architecture and common processing.Memory 1903 can store place Manage the used data when executing operation of device 1901.
In the embodiment of the present invention, network side equipment 1900 can also include: to be stored on memory 1903 and can handle The computer program run on device 1901, computer program realize following steps when being executed by processor 1901: determining user's end Hold the core net selection preference or UE ability of UE；Preference and the network side equipment is selected to support according to the core net of the UE Core net, or the core net supported according to the UE ability and the network side equipment, determine the target core of the UE access Heart net.
Alternatively, computer program realizes following steps when being executed by processor 1901: receiving the industry that user terminal UE is sent Business request；According to the service request, determine whether to replace the third core net that the UE is initially accessed.
Alternatively, computer program realizes following steps when being executed by processor 1901: sending the net to user terminal UE Network side apparatus is to the tenability of core net and the working condition of the network side equipment and each core network interface；Receive the UE The core net selection result of transmission；It is established and the connection between corresponding core net according to the core net selection result.
Bus architecture may include the bus and bridge of any number of interconnection in the figure, specifically be represented by processor 1901 One or more processors and the various circuits of memory that represent of memory 1903 link together.Bus architecture can be with Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like are linked together, these are all these Well known to field, therefore, the embodiment of the present invention is no longer described further it.Bus interface provides interface.Transceiver 1902 can be multiple element, that is, include transmitter and receiver, provide for logical with various other devices over a transmission medium The unit of letter.
Processor 1901, which is responsible for management bus architecture and common processing, memory 1903, can store processor 1901 and exists Execute used data when operation.
As shown in figure 20, user terminal 2000 shown in Figure 20 include: at least one processor 2001, memory 2002, At least one network interface 2004 and user interface 2003.Various components in user terminal 2000 pass through 2005 coupling of bus system It is combined.It is understood that bus system 2005 is for realizing the connection communication between these components.Bus system 2005 is removed It further include power bus, control bus and status signal bus in addition except data/address bus.But for the sake of clear explanation, scheming Various buses are all designated as bus system 2005 in 20.
Wherein, user interface 2003 may include display, keyboard or pointing device (for example, mouse, trace ball (trackball), touch-sensitive plate or touch screen etc..
It is appreciated that the memory 2002 in the embodiment of the present invention can be volatile memory or non-volatile memories Device, or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read-Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), erasable programmable are only Read memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, ) or flash memory EEPROM.Volatile memory can be random access memory (Random Access Memory, RAM), use Make External Cache.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random-access Memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random-access Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDRSDRAM), it is enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronous Connect dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DRRAM).The embodiment of the present invention description system and method memory 2002 be intended to include but It is not limited to the memory of these and any other suitable type.
In some embodiments, memory 2002 saves following element, executable modules or data structures, or Their subset of person or their superset: operating system 20021 and application program 20022.
Wherein, operating system 20021 include various system programs, such as ccf layer, core library layer, driving layer etc., are used for Realize various basic businesses and the hardware based task of processing.Application program 20022 includes various application programs, such as matchmaker Body player (Media Player), browser (Browser) etc., for realizing various applied business.Realize that the present invention is implemented The program of example method may be embodied in application program 20022.
In embodiments of the present invention, by the program or instruction of calling memory 2002 to save, specifically, can be application The program or instruction saved in program 20022, when execution, perform the steps of the core net that the UE is sent to network side equipment Select preference or UE ability；Second message is sent to the network side equipment；The third that the network side equipment is sent is received to disappear Breath, the third message, which is used to feed back the second message to the UE, is forwarded to target core network；Wherein, the target core Net is that the network side equipment is determined according to the core net that the core net of the UE selects preference and the network side equipment to support Or the network side equipment determines according to the core net that the UE ability and the network side equipment are supported.
It performs the steps of when alternatively, executing to the network side equipment and sends the 4th message, by the network side equipment By the UE access to third core net；Service request is sent to the network side equipment, by the network side equipment according to institute Service request is stated, determines whether to replace the third core net that the UE is initially accessed.
The network side equipment for receiving network side equipment transmission is performed the steps of when alternatively, executing to core net The working condition of tenability and the network side equipment and each core network interface；According to the network side equipment to core net Tenability and the working condition of the network side equipment and each core network interface determine core net selection result；To the network Side apparatus sends the core net selection result.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey The step in the method for selection core net as described above is realized when sequence is executed by processor.
The step of method in conjunction with described in the disclosure of invention or algorithm can realize in a manner of hardware, can also It is realized in a manner of being to execute software instruction by processor.Software instruction can be made of corresponding software module, software mould Block can be stored on RAM, flash memory, ROM, EPROM, EEPROM, register, hard disk, mobile hard disk, CD-ROM or ability In the storage medium of any other form known to domain.A kind of illustrative storage medium is coupled to processor, to make to handle Device can be from the read information, and information can be written to the storage medium.Certainly, storage medium is also possible to handle The component part of device.Pocessor and storage media can be located in ASIC.In addition, the ASIC can be located at core network interface equipment In.Certainly, pocessor and storage media can also be used as discrete assembly and be present in core network interface equipment.
Those skilled in the art are it will be appreciated that in said one or multiple examples, function described in the invention It can be realized with hardware, software, firmware or their any combination.It when implemented in software, can be by these functions Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted. Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another Any medium of one place transmission computer program.Storage medium can be general or specialized computer can access it is any Usable medium.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all any modification, equivalent substitution, improvement and etc. on the basis of technical solution of the present invention, done should all Including within protection scope of the present invention.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as the production of method, system or computer program Product.Therefore, in terms of the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and hardware Embodiment form.Moreover, it wherein includes computer available programs generation that the embodiment of the present invention, which can be used in one or more, The meter implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code The form of calculation machine program product.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, equipment (system) and computer program product Flowchart and/or the block diagram describe.It should be understood that can be realized by computer program instructions in flowchart and/or the block diagram The combination of process and/or box in each flow and/or block and flowchart and/or the block diagram.It can provide these calculating Processing of the machine program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices Device is to generate a machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute For realizing the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram Device.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention Bright spirit and scope.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention and its wait Within the scope of technology, then the present invention is also intended to include these modifications and variations.

Claims (33)

1. a kind of method for selecting core net, is applied to network side equipment, the core net that the network side equipment is supported at least is wrapped It includes: the first core net and the second core net, which is characterized in that the described method includes:
Determine the core net selection preference or UE ability of user terminal UE；
According to the core net that the core net of the UE selects preference and the network side equipment to support, or according to the UE ability The core net supported with the network side equipment, determines the target core network of the UE access.
2. the method according to claim 1, wherein the core net of the determining UE selects preference, comprising:
According to the first lead code that the UE is sent, the core net selection preference of the UE is determined；Or
The first indicating bit in first message sent according to the UE determines the core net selection preference of the UE.
3. the method according to claim 1, wherein described according to the core net of UE selection preference and described The core net that network side equipment is supported, determines the target core network of the UE access, comprising:
Judge the core net selection preference that the network side equipment supports the first core net of access whether to meet the UE；
If the network side equipment supports the first core net of access to meet the core net selection preference of the UE, by described the One core net is determined as target core network；
If the network side equipment supports the first core net of access to be unsatisfactory for the core net selection preference of the UE, by the net Network side apparatus supports the second core net of access to be determined as target core network, or sends refusal instruction.
4. the method according to claim 1, wherein described according to the UE ability and the network side equipment branch The core net held determines the target core network of the UE access, comprising:
Whether the first core net for judging that the network side equipment is supported meets the UE ability；
If the first core net that the network side equipment is supported meets the UE ability, first core net is determined as mesh Mark core net；
If the first core net that the network side equipment is supported is unsatisfactory for the UE ability, the network side equipment is supported the Two core nets are determined as target core network, or send refusal instruction.
5. a method of selection core net is applied to user terminal UE, which is characterized in that the described method includes:
The core net selection preference or UE ability of the UE are sent to network side equipment；
Second message is sent to the network side equipment；
The third message that the network side equipment is sent is received, the third message is used to feed back the second message to the UE It is forwarded to target core network；
Wherein, the target core network is the network side equipment according to the core net of UE selection preference and the network side The network side equipment that the core net that equipment is supported determines or described is supported according to the UE ability and the network side equipment Core net determine.
6. according to the method described in claim 5, it is characterized in that, the core net choosing for sending the UE to network side equipment Select preference, comprising:
The first lead code is sent to the network side equipment, first lead code is inclined corresponding to the core net selection of the UE It is good；Alternatively,
First message is sent to the network side equipment, the first indicating bit in the first message corresponds to the core of the UE Net selection preference.
7. a kind of method for selecting core net, is applied to network side equipment, the core net that the network side equipment is supported at least is wrapped It includes: third core net and the 4th core net, which is characterized in that the described method includes:
Receive the service request that user terminal UE is sent；
According to the service request, determine whether to replace the third core net that the UE is initially accessed.
8. determining whether to replace the method according to the description of claim 7 is characterized in that described according to the service request The core net of the UE access, comprising:
Whether the third core net for judging that the UE is initially accessed meets the service request；
If the third core net that the UE is initially accessed meets the service request, keep between the third core net Connection；
If the third core net that the UE is initially accessed is unsatisfactory for the service request, disconnect between the third core net Connection, establish and the network side equipment support the 4th core net between connection.
9. a kind of method for selecting core net, is applied to user terminal UE, which is characterized in that the described method includes:
The 4th message is sent to the network side equipment, by the network side equipment by the UE access to third core net；
Service request is sent to the network side equipment to determine whether to by the network side equipment according to the service request Replace the third core net that the UE is initially accessed.
10. a kind of method for selecting core net, is applied to network side equipment, which is characterized in that the described method includes:
The network side equipment is sent to the tenability of core net and the network side equipment and each core to user terminal UE The working condition of network interface；
Receive the core net selection result that the UE is sent；
It is established and the connection between corresponding core net according to the core net selection result.
11. according to the method described in claim 10, it is characterized in that, sending the network side equipment to the branch of core net to UE Hold the working condition of ability and the network side equipment and each core network interface, comprising:
It sends and broadcasts the message to the UE, the second indicating bit in the broadcast message corresponds to the network side equipment to core The working condition of the tenability of net and the network side equipment and each core network interface, alternatively,
The 5th message is sent to the UE, the third indicating bit in the 5th message corresponds to the network side equipment to core The working condition of the tenability of net and the network side equipment and each core network interface.
12. according to the method described in claim 10, it is characterized in that, the core net selection knot for receiving the UE and sending Fruit, comprising:
The second lead code that the UE is sent is received, second lead code corresponds to the core net selection result of the UE；Or Person,
The 6th message that the UE is sent is received, the 4th indicating bit in the 6th message is selected corresponding to the core net of the UE Select result.
13. a kind of method for selecting core net, is applied to user terminal UE, which is characterized in that the described method includes:
The network side equipment that reception network side equipment is sent is to the tenability of core net and the network side equipment and respectively The working condition of core network interface；
According to the network side equipment to the tenability of core net and the work of the network side equipment and each core network interface State determines core net selection result；
The core net selection result is sent to the network side equipment.
14. according to the method for claim 13, which is characterized in that receive the network side equipment that network side equipment is sent The working condition of tenability and the network side equipment and each core network interface to core net, comprising:
Broadcast message is received, the second indicating bit in the broadcast message corresponds to support of the network side equipment to core net The working condition of ability and the network side equipment and each core network interface, alternatively,
The 5th message that the network side equipment is sent is received, the third indicating bit in the 5th message corresponds to the network Side apparatus is to the tenability of core net and the working condition of the network side equipment and each core network interface.
15. according to the method for claim 13, which is characterized in that described to send the core net to the network side equipment Selection result, comprising:
The second lead code is sent to the network side equipment, second lead code selects knot corresponding to the core net of the UE Fruit；Alternatively,
The 6th message is sent to the network side equipment, the 4th indicating bit in the 6th message corresponds to the core of the UE Net selection result.
16. a kind of network side equipment, the core net that the network side equipment is supported is included at least: the first core net and the second core Net characterized by comprising first processor and the first transceiver；
The first processor is used for: determining the core net selection preference or UE ability of user terminal UE；
The first processor is also used to: the core for selecting preference and the network side equipment to support according to the core net of the UE Net, or the core net supported according to the UE ability and the network side equipment, determine the target core network of the UE access.
17. network side equipment according to claim 16, which is characterized in that the first processor is further used for:
According to the first lead code that the UE is sent, the core net selection preference of the UE is determined；Or
The first indicating bit in first message sent according to the UE determines the core net selection preference of the UE.
18. network side equipment according to claim 16, which is characterized in that the first processor is further used for:
Judge the core net selection preference that the network side equipment supports the first core net of access whether to meet the UE；
If the network side equipment supports the first core net of access to meet the core net selection preference of the UE, by described the One core net is determined as target core network；
If the network side equipment supports the first core net of access to be unsatisfactory for the core net selection preference of the UE, by the net Network side apparatus supports the second core net of access to be determined as target core network, or instruction first transceiver sends refusal and refers to Show.
19. network side equipment according to claim 16, which is characterized in that the first processor is further used for:
Whether the first core net for judging that the network side equipment is supported meets the UE ability；
If the first core net that the network side equipment is supported meets the UE ability, first core net is determined as mesh Mark core net；
If the first core net that the network side equipment is supported is unsatisfactory for the UE ability, the network side equipment is supported the Two core nets are determined as target core network, or send refusal instruction.
20. a kind of user terminal UE characterized by comprising second processor and the second transceiver, wherein
Second transceiver is used for: the core net selection preference or UE ability of the UE are sent to network side equipment；
Second transceiver is also used to: Xiang Suoshu network side equipment sends second message；
Second transceiver is also used to: receive the third message that the network side equipment is sent, the third message be used for The UE feeds back the second message and is forwarded to target core network；
Wherein, the target core network is the network side equipment according to the core net of UE selection preference and the network side The core that the core net or the network side equipment that equipment is supported are supported according to the UE ability and the network side equipment Net determination.
21. UE according to claim 20, which is characterized in that second transceiver is further used for:
The first lead code is sent to the network side equipment, first lead code is inclined corresponding to the core net selection of the UE It is good；Alternatively,
First message is sent to the network side equipment, the first indicating bit in the first message corresponds to the core of the UE Net selection preference.
22. a kind of network side equipment, the core net that the network side equipment is supported is included at least: third core net and the 4th core Net characterized by comprising third processor and third transceiver, wherein
The third transceiver is used for: receiving the service request that user terminal UE is sent；
The third processor is used for: according to the service request, determining whether to replace the third core that the UE is initially accessed Heart net.
23. network side equipment according to claim 22, which is characterized in that the third processor is further used for:
Whether the third core net for judging that the UE is initially accessed meets the service request；
If the third core net that the UE is initially accessed meets the service request, the third transceiver holding and institute are indicated State the connection between third core net；
If the third core net that the UE is initially accessed is unsatisfactory for the service request, disconnect between the third core net Connection, indicate the connection between the third transceiver is established and the network side equipment is supported the 4th core net.
24. a kind of UE characterized by comprising fourth processor and the 4th transceiver, wherein
4th transceiver is used for: Xiang Suoshu network side equipment sends the 4th message, by the network side equipment by the UE It is linked into third core net；
4th transceiver is also used to: Xiang Suoshu network side equipment sends service request, by the network side equipment according to institute Service request is stated, determines whether to replace the third core net that the UE is initially accessed.
25. a kind of network side equipment characterized by comprising the 5th processor and the 5th transceiver, wherein
5th transceiver is used for: sending the network side equipment to the tenability of core net and described to user terminal UE The working condition of network side equipment and each core network interface；
5th transceiver is also used to: receiving the core net selection result that the UE is sent；
5th processor is used for: indicating that the 5th transceiver is established and corresponding core according to the core net selection result Connection between heart net.
26. network side equipment according to claim 25, which is characterized in that the 5th transceiver is further used for:
It sends and broadcasts the message to the UE, the second indicating bit in the broadcast message corresponds to the network side equipment to core The working condition of the tenability of net and the network side equipment and each core network interface, alternatively,
The 5th message is sent to the UE, the third indicating bit in the 5th message corresponds to the network side equipment to core The working condition of the tenability of net and the network side equipment and each core network interface.
27. network side equipment according to claim 25, which is characterized in that the 5th transceiver is further used for
The second lead code that the UE is sent is received, second lead code corresponds to the core net selection result of the UE；Or Person,
The 6th message that the UE is sent is received, the 4th indicating bit in the 6th message is selected corresponding to the core net of the UE Select result.
28. a kind of user terminal UE characterized by comprising the 6th processor and the 6th transceiver, wherein
6th transceiver is used for: receive the network side equipment that network side equipment is sent to the tenability of core net and The working condition of the network side equipment and each core network interface；
6th processor is used for: according to the network side equipment to the tenability of core net and the network side equipment with The working condition of each core network interface determines core net selection result；
6th transceiver is also used to: Xiang Suoshu network side equipment sends the core net selection result.
29. UE according to claim 28, which is characterized in that the 6th transceiver is further used for:
Broadcast message is received, the second indicating bit in the broadcast message corresponds to support of the network side equipment to core net The working condition of ability and the network side equipment and each core network interface, alternatively,
The 5th message that the network side equipment is sent is received, the third indicating bit in the 5th message corresponds to the network Side apparatus is to the tenability of core net and the working condition of the network side equipment and each core network interface.
30. UE according to claim 28, which is characterized in that the 6th transceiver is further used for:
The second lead code is sent to the network side equipment, second lead code selects knot corresponding to the core net of the UE Fruit；Alternatively,
The 6th message is sent to the network side equipment, the 4th indicating bit in the 6th message corresponds to the core of the UE Net selection result.
31. a kind of network side equipment characterized by comprising memory, processor, transceiver and storage are on a memory simultaneously The computer program that can be run on a processor, the processor are realized when executing described program such as any one of Claims 1 to 4 Step in the method for the selection core net；Or it realizes such as the described in any item selection core nets of claim 7~8 Step in method, or realize the step in the method such as the described in any item selection core nets of claim 10~12.
32. a kind of user terminal characterized by comprising memory, processor, transceiver and storage are on a memory and can The computer program run on a processor, the processor are realized when executing described program such as any one of claim 5~6 institute Step in the method for the selection core net stated；Or the step in the method for realization selection core net as claimed in claim 9 Suddenly, or realize as claim 13~15 it is described in any item selection core nets methods in step.
33. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor The step in the method such as the described in any item selection core nets of Claims 1 to 4 is realized when execution；Or it realizes as right is wanted Seek the step in the method for 5~6 described in any item selection core nets；Or it realizes as claim 7~8 is described in any item The step in the method for core net is selected, realizes the step in the method for selection core net as claimed in claim 9；Or it is real The now step in the method for the described in any item selection core nets of such as claim 10~12, or realization such as claim 13~ Step in the method for 15 described in any item selection core nets.
CN201711069903.5A 2017-11-03 2017-11-03 Select method, user terminal and the network side equipment of core net Pending CN109756950A (en)

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