CN107027118A - Inter-cell switch method and device, base station - Google Patents
Inter-cell switch method and device, base station Download PDFInfo
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- CN107027118A CN107027118A CN201610074813.4A CN201610074813A CN107027118A CN 107027118 A CN107027118 A CN 107027118A CN 201610074813 A CN201610074813 A CN 201610074813A CN 107027118 A CN107027118 A CN 107027118A
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- carrier frequency
- frequency point
- handover request
- target
- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/10—Integrity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a kind of inter-cell switch method and device, base station, methods described includes：Source base station is that user equipment (UE) determines the to be switched target BS of the UE, and the carrier frequency point information supported according to the target BS determines at least one to be switched carrier frequency point of the UE；The source base station protects key according to the carrier frequency period calculation of integrity of at least one carrier frequency point, and the tegrity protection key calculated is sent to the target BS.
Description
Technical field
The present invention relates to terminal in the handoff technique of minizone, more particularly to a kind of inter-cell switch method and dress
Put, base station.
Background technology
Frequency range is there may be in Long Term Evolution (LTE, Long Term Evolution) system available frequency band to overlap,
In such as time-division Long Term Evolution (TD-LTE, Time Division Long Term Evolution) system, Band41
(2496~2690MHz), Band38 (2570~2620MHz), as two overlapping frequency ranges.Therefore exist
In third generation partner program (3GPP, 3rd Generation Partnership Project) agreement, introduce
Multiband instruction (mFBI, Multi-Frequency Band Indicator) function, i.e., in system message
Carry multiple carrier frequency periods (EARFCN, E-UTRA Absolute Radio Frequency Channel
) number Number.MFBI functions are further enhanced in 3GPP R12 versions, terminal can pass through mFBI
The order of EARFCN in list carries out priority access.
Because early stage terminal only supports Band38, it is with the frequencies of Band 38 to cause the frequency of current network side to configure
Point is as dominant frequency point, and Band41 is used as auxiliary frequency point.Therefore, when not supporting the enhanced terminals of mFBI preferential
Band38 is accessed, and supports the enhanced terminals of mFBI and network, terminal is by according to auxiliary in SIB1 signalings
Point order can priority access Band41；And in handoff procedure, current 3GPP agreements regulation, base station needs root
The frequency in idle (Idle) state acquiescence access is switched the terminal into according to the understanding of itself.And two with
When Band38 between dominant frequency point base stations as switching, it is only switched on Band38 frequencies.
After the switching of base station, the key of integrity protection will be changed, and its key is cut by source base station by estimating
The EARFCN (corresponding with the frequency that terminal i dle states give tacit consent to access) for changing target BS is calculated, and
Target BS is sent in Handover request.And the switching frequency of terminal is actually sent to,
Source base station is sent to by target BS in Handover request ack after Handover request, and
The EARFCN that terminal is sent by target BS carries out the calculating of tegrity protection key.Only in source base station
In the case that the EARFCN of selection is consistent with the EARFCN that target BS is sent to terminal, integrality is protected
Shield can just be completed.The cause and source, the switching frequency of target BS understand differently, may cause terminal small in target
Failure is so as to cause minizone X2 handoff failures when area carries out integrity protection.Such as：
Terminal related 1.TD-LTE Band38/41 and target BS support mFBI enhancings, and source base station is not
MFBI enhancings are supported, source base station will protect key according to Band 38 EARFCN calculation of integrity.And
Band41 EARFCN is carried in switching command, terminal calculates complete according to Band 41 EARFCN
Property protection key, will be inconsistent with the key of base station side, and handoff failure.
Terminal in the activation of 2.TD-LTE Band41+Band39 carrier aggregations, switches between mFBI base stations
Afterwards, because source base station will protect key according to Band 38 EARFCN calculation of integrity, and it can only switch
To Band38, cause carrier aggregation continuous, and efficiency is reduced.
The content of the invention
In order to solve the above technical problems, the embodiments of the invention provide a kind of inter-cell switch method and device,
Base station.
The technical scheme of the embodiment of the present invention is as follows：
A kind of inter-cell switch method, methods described includes：
The carrier frequency point information that source base station is supported according to target BS determines at least one to be switched of the UE
Carrier frequency point；
The source base station protects key according to the carrier frequency period calculation of integrity of at least one carrier frequency point,
And send the tegrity protection key calculated to the target BS.
In the embodiment of the present invention, the carrier frequency point information supported according to the target BS determines the UE
At least one to be switched carrier frequency point, including：
The common carrier frequency point for the carrier frequency point that the source base station supports the UE and the target BS
It is defined as at least one to be switched carrier frequency point of the UE.
It is described to send the tegrity protection key calculated to the target BS in the embodiment of the present invention,
Including：
The tegrity protection key calculated is carried on handover request Handover Request by the source base station
In message, and by the Handover Request message to the target BS send calculated it is complete
Property protection key.
In the embodiment of the present invention, methods described also includes：
Handover Request message is extended, set up in the Handover Request message
At least one is used for the Access Layer security information AS for carrying the tegrity protection key that the source base station is calculated
Security Information cell, and the carrier frequency point being based on for load capacity calculation Integrity Key
The cell of information.
In the embodiment of the present invention, the carrier frequency point information supported according to the target BS determines the UE
At least one to be switched carrier frequency point, including：
The source base station sends Handover Request message to the target BS, receives the target base
Stand send Handover Request Acknowledge Handover Request ack message；The Handover Request ack
The to be switched carrier frequency point information of the UE is carried in message.
In the embodiment of the present invention, the source base station receives the Handover Request that the target BS is sent
After ack message, methods described also includes：
The source base station is calculated based on carrier frequency point the information to be switched UE that the target BS is sent
Tegrity protection key, and the tegrity protection key calculated is sent to the target BS.
In the embodiment of the present invention, methods described also includes：
Handover Request ack message is extended, in the Handover Request ack message
In set up the cell of bearing carrier wave frequency point information；
Carried in the cell of bearing carrier wave frequency point information in the Handover Request ack message
State the to be switched carrier frequency point information of UE.
A kind of inter-cell switch method, methods described includes：
Target BS is received after the message of source base station transmission, judges whether carry integrality in the message
Key is protected, when carrying tegrity protection key, determines that the to be switched carrier frequency points of UE are corresponding complete
Property protection key, and utilize identified tegrity protection key's progress integrity protection；In the message not
When carrying tegrity protection key, the to be switched carrier frequency point information of UE is sent to the source base station, and connect
The tegrity protection key for receiving the carrier frequency point calculating to be switched based on the UE that the source base station is sent,
And carry out integrity protection using the tegrity protection key received.
In the embodiment of the present invention, methods described also includes：
Handover Request ack message is extended, in the Handover Request ack message
In set up the cell of bearing carrier wave frequency point information；
It is described to send the to be switched carrier frequency point information of UE to the source base station, including：
The to be switched carrier frequency point information of the UE is carried in the Handover Request ack message
Bearing carrier wave frequency point information cell in.
In the embodiment of the present invention, the message includes Handover Request message；Methods described also includes：
Handover Request message is extended, set up in the Handover Request message
At least one Access Layer security information AS Security Information cell, and load capacity calculation integrality
The cell for the carrier frequency point information that key is based on；
Accordingly, held in the AS Security Information cells in the Handover Request message
Carry all common carrier waves for the carrier frequency point that the source base station is supported based on the UE and the target BS
The tegrity protection key that frequency is calculated, the letter for the carrier frequency point information that load capacity calculation Integrity Key is based on
The carrier frequency point information that calculation of integrity key is based on is carried in member.
A kind of inter-cell switch method, methods described includes：
Target BS is received after the message of source base station transmission, determines the integrity protection carried in the message
Whether the carrier frequency point that the carrier frequency point information or carrier frequency point configured information that key is based on are indicated is treated with UE
The carrier frequency point information of switching is consistent, is carried out when consistent using the tegrity protection key carried in the message
Integrity protection；When inconsistent, key is protected based on carrier frequency point calculation of integrity to be switched UE, and
The tegrity protection key calculated is sent to the source base station.
In the embodiment of the present invention, the message includes Handover Request message；Methods described also includes：
Handover Request message is extended, set up in the Handover Request message
The load that the carrier frequency point information or carrier frequency point configured information that load capacity calculation tegrity protection key is based on are indicated
The cell of wave frequency point.
A kind of inter-cell switch method, methods described includes：
Source base station determines the to be switched carrier frequency points of UE, and the carrier frequency point calculation of integrity based on determined by
Protect key；
The source base station to target BS send calculated tegrity protection key when, also to the target base
Stand and send the carrier frequency point information that calculation of integrity protection key is based on.
In the embodiment of the present invention, methods described also includes：
Handover request Handover Request message is extended, disappeared in the Handover Request
Carrier frequency point information or carrier frequency point configured information that load capacity calculation tegrity protection key is based on are set up in breath
The cell of the carrier frequency point of instruction；
The source base station sends the source base station by the Handover Request message of extension to target BS
The carrier frequency that the carrier frequency point information or carrier frequency point configured information that calculation of integrity protection key is based on are indicated
Point.
In the embodiment of the present invention, methods described also includes：
The carrier frequency point that calculation of integrity protection key is based on and the UE that the target BS side is determined are to be cut
When the carrier frequency point changed is inconsistent, being determined based on the target BS side for the target BS transmission is also received
The tegrity protection key that calculates of the to be switched carrier frequency points of UE.
A kind of handover between cells device, described device includes：Determining unit, computing unit and transmitting element,
Wherein：
Determining unit, the carrier frequency point information for being supported according to target BS determines that the UE is to be switched
At least one carrier frequency point；
Computing unit, for the carrier frequency period calculation of integrity protection according at least one carrier frequency point
Key；
Transmitting element, for the tegrity protection key calculated to be sent to the target BS.
In the embodiment of the present invention, the determining unit is additionally operable to：
All common carrier frequency points for the carrier frequency point that the UE and the target BS are supported are defined as
At least one to be switched UE carrier frequency point.
In the embodiment of the present invention, described device also includes：
First expanding element, for being extended to handover request Handover Request message, described
At least one Access Layer security information AS Security Information are set up in Handover Request message
Cell, and the cell of carrier frequency point information that load capacity calculation Integrity Key is based on；
The transmitting element, is additionally operable to：The tegrity protection key calculated is carried on Handover
In AS Security Information cells in Request message, calculation of integrity key is based on
Carrier frequency point information is carried in corresponding carrying cell, and sends the Handover to the target BS
Request message.
In the embodiment of the present invention, described device also includes：
Receiving unit, for after Handover Request message is sent to the target BS, receiving institute
State the Handover Request Acknowledge Handover Request ack message of target BS transmission；The Handover
The to be switched carrier frequency point information of the UE is carried in Request ack message；20th, according to claim
Handover between cells device described in 19, it is characterised in that the computing unit, is additionally operable to receive single described
Member is received after the Handover Request ack message that the target BS is sent, based on target BS hair
Carrier frequency point information calculation of integrity protection the key to be switched UE that send；
The transmitting element, the tegrity protection key for being additionally operable to be calculated sends to the target BS.
A kind of handover between cells device, described device includes：Receiving unit, judging unit, determining unit,
Transmitting element and protection location, wherein：
Receiving unit, the message for receiving source base station transmission；
Judging unit, for judging whether carry tegrity protection key in the message, is carried complete
Property protection key when, trigger the determining unit, when not carrying tegrity protection key, trigger the hair
Send unit；
Determining unit, for determining the corresponding tegrity protection key of the to be switched carrier frequency points of UE, correspondence
Ground, protection location tegrity protection key determined by carries out integrity protection；
Transmitting element, for sending the to be switched carrier frequency point information of UE to the source base station；Accordingly,
The receiving unit, based on receiving the carrier frequency point to be switched based on the UE that the source base station is sent
The tegrity protection key of calculation, the protection location is additionally operable to utilize received tegrity protection key to enter
Row integrity protection.
In the embodiment of the present invention, described device also includes：First expanding element, for Handover Request Acknowledge
Handover Request ack message is extended, and is set up in the Handover Request ack message
The cell of bearing carrier wave frequency point information；
The transmitting element, is additionally operable to the to be switched carrier frequency point information of the UE being carried on described
Sent in the cell of bearing carrier wave frequency point information in Handover Request ack message.
A kind of handover between cells device, described device includes：Receiving unit, determining unit, protection location,
Computing unit and transmitting element, wherein：
Receiving unit, the message for receiving source base station transmission；
Determining unit, the carrier frequency point that the tegrity protection key for determining to carry in the message is based on
The carrier frequency point that information or carrier frequency point configured information are indicated whether the carrier frequency point information one to be switched with UE
Cause, the protection location is triggered when consistent；When inconsistent, the computing unit is triggered；
Protection location, for carrying out integrity protection using the tegrity protection key carried in the message；
Computing unit, for protecting key based on carrier frequency point calculation of integrity to be switched UE, accordingly,
The transmitting element is used to send the tegrity protection key calculated to the source base station.
In the embodiment of the present invention, the message includes Handover Request message；Described device also includes：
Expanding element, for being extended to Handover Request message, in the Handover
Carrier frequency point information or carrier frequency that load capacity calculation tegrity protection key is based on are set up in Request message
The cell for the carrier frequency point that point configured information is indicated.
A kind of handover between cells device, described device includes：Determining unit, computing unit and transmitting element,
Wherein：
Determining unit, the carrier frequency point to be switched for determining UE；
Computing unit, for protecting key based on identified carrier frequency point calculation of integrity；
Transmitting element, during for sending calculated tegrity protection key to target BS, also to the mesh
Mark base station sends the carrier frequency point information that calculation of integrity protection key is based on.
In the embodiment of the present invention, described device also includes：
First expanding element, for being extended to handover request Handover Request message, described
The carrier frequency point information that load capacity calculation tegrity protection key is based on is set up in Handover Request message
Or the cell of the carrier frequency point of carrier frequency point configured information instruction；
The transmitting element sends described calculate by the Handover Request message of extension to target BS
The load that the carrier frequency point information or carrier frequency point configured information that unit calculation of integrity protection key is based on are indicated
Wave frequency point.
A kind of base station, the base station also includes foregoing handover between cells device.
In the technical scheme of the embodiment of the present invention, source base station is that UE determines the to be switched target bases of the UE
Stand, and the carrier frequency point information supported according to the target BS determines at least one to be switched of the UE
Carrier frequency point；Key is protected according to the carrier frequency period calculation of integrity of at least one carrier frequency point, and
The tegrity protection key calculated is sent to the target BS.Or, target BS receives source base
Stand after the Handover Request message sent, determine what is carried in the Handover Request message
The carrier frequency point that carrier frequency point information or carrier frequency point configured information that tegrity protection key is based on are indicated is
It is no consistent with UE is to be switched carrier frequency point information, the Handover Request message is utilized when consistent
The tegrity protection key of middle carrying carries out integrity protection；When inconsistent, based on the carrier wave that UE is to be switched
Frequency calculation of integrity protects key, and the tegrity protection key calculated is sent to the source base station.
In the embodiment of the present invention, it is extended by the information word to the related news in switching flow, makes cell-of-origin
Between Target cell to the frequency after switching and Access Layer information AS information (KeNB) unanimously, from
And when source base station does not support mFBI enhancings and UE and target BS support mFBI enhancings, make UE and mesh
Mark base station and support mFBI enhancings, UE is eated dishes without rice or wine that integrity protection can be realized.Base station flexibly can cut UE
Band41 frequencies are changed to, also can guarantee that carrier aggregation function is normally used.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention one；
Fig. 2 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention two；
Fig. 3 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention three；
Fig. 4 is the implementation process schematic diagram of the inter-cell switch method of the embodiment of the present invention three；
Fig. 5 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention four；
Fig. 6 is the implementation process schematic diagram of the inter-cell switch method of the embodiment of the present invention four；
Fig. 7 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention five；
Fig. 8 is the implementation process schematic diagram of the inter-cell switch method of the embodiment of the present invention five；
Fig. 9 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention one；
Figure 10 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention two；
Figure 11 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention three；
Figure 12 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention four.
Embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings
Realization to the embodiment of the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used for
Limit the embodiment of the present invention.
Fig. 1 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention one, as shown in figure 1, this
The inter-cell switch method of example comprises the following steps：
Step 101：Source base station is that user equipment (UE) determines the to be switched target BS of the UE, and according to
The carrier frequency point information that the target BS is supported determines at least one to be switched carrier frequency point of the UE.
Source base station determines the to be switched target BS of UE according to UE measurement report, and is supported according to UE
Carrier frequency point and the carrier frequency point supported of the target BS determine at least one to be switched load of UE
Wave frequency point.
Step 102：Source base station is protected according to the carrier frequency period calculation of integrity of at least one carrier frequency point
Key is protected, and the tegrity protection key calculated is sent to the target BS.
Source base station is calculated for the tegrity protection key in UE handoff procedures, and sent out to target BS first
Give the tegrity protection key.
In the embodiment of the present invention, source base station is according to being determined the carrier frequency point information that the target BS is supported
At least one to be switched UE carrier frequency point, including：
Before the source base station sends handover request Handover Request message to the target BS,
All common carrier frequency points for the carrier frequency point that the source base station supports the UE and the target BS
It is defined as at least one to be switched carrier frequency point of the UE.
In the embodiment of the present invention, source base station sends the tegrity protection key calculated to the target BS,
Including：
The tegrity protection key calculated is carried in Handover Request message by the source base station,
And it is close to the calculated integrity protection of target BS transmission by the Handover Request message
Key.
In the embodiment of the present invention, methods described also includes：
Handover Request message is extended, set up in the Handover Request message
At least one Access Layer security information AS Security Information cell, and load capacity calculation integrality
The cell for the carrier frequency point information that key is based on；
Accordingly, the tegrity protection key calculated is carried on Handover Request by the source base station
In AS Security Information cells in message, the carrier frequency point that calculation of integrity key is based on
Information is carried in corresponding carrying cell, and sends the Handover Request to the target BS
Message.
In the embodiment of the present invention, the load supported as a kind of implementation, source base station according to the target BS
Ripple frequency point information determines at least one to be switched carrier frequency point of the UE, including：
The source base station sends Handover Request message to the target BS, receives the target base
Stand send Handover Request Acknowledge Handover Request ack message；The Handover Request ack
The to be switched carrier frequency point information of the UE is carried in message.The source base station receives the target BS
After the Handover Request ack message of transmission, methods described also includes：
The source base station is calculated based on carrier frequency point the information to be switched UE that the target BS is sent
Tegrity protection key, and the tegrity protection key calculated is sent to the target BS.
Based on this, methods described also includes：
Handover Request ack message is extended, in the Handover Request ack message
In set up the cell of bearing carrier wave frequency point information；
Carried in the cell of bearing carrier wave frequency point information in the Handover Request ack message
State the to be switched carrier frequency point information of UE.
In the embodiment of the present invention, when target BS receives the Handover Request message of source base station transmission
Afterwards, judge whether carry tegrity protection key in the Handover Request message, carried
During whole property protection key, the corresponding tegrity protection key of the to be switched carrier frequency points of UE is determined, and utilize
Identified tegrity protection key carries out integrity protection；Do not taken in the Handover Request message
During band tegrity protection key, UE is sent to the source base station by Handover Request ack message and treated
The carrier frequency point information of switching, and receive the carrier frequency to be switched based on the UE that the source base station is sent
The tegrity protection key that point is calculated, and carry out integrity protection using the tegrity protection key received.
Fig. 2 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention two, as shown in Fig. 2 this
The inter-cell switch method of example comprises the following steps：
Step 201, source base station determines the to be switched carrier frequency points of UE, and the carrier frequency point meter based on determined by
Calculate tegrity protection key.
Step 202, source base station to target BS send calculated tegrity protection key when, also to described
Target BS sends the carrier frequency point information that calculation of integrity protection key is based on.
, it is necessary to be extended to Handover Request message, in the Handover in the embodiment of the present invention
Carrier frequency point information or carrier frequency that load capacity calculation tegrity protection key is based on are set up in Request message
The cell for the carrier frequency point that point configured information is indicated；
The source base station sends the source base station by the Handover Request message of extension to target BS
The carrier frequency that the carrier frequency point information or carrier frequency point configured information that calculation of integrity protection key is based on are indicated
Point.
In the embodiment of the present invention, when calculation of integrity protects the carrier frequency point that key is based on and the target base
Stand side determination UE it is to be switched carrier frequency point it is inconsistent when, also receive that the target BS sends based on
The tegrity protection key that carrier frequency point to be switched UE that the target BS side is determined is calculated.
Step 203, target BS carries out associated verification based on the tegrity protection key that source base station is sent.
Specifically, target BS is received after the Handover Request message of source base station transmission, determines institute
State carrier frequency point information or load that the tegrity protection key carried in Handover Request message is based on
Whether the carrier frequency point that wave frequency point configured information is indicated is consistent with the carrier frequency point information that UE is to be switched；Unanimously
The tegrity protection key carried in Handover Request message described in Shi Liyong carries out integrity protection；
When inconsistent, key is protected based on carrier frequency point calculation of integrity to be switched UE, and it is complete by what is calculated
Whole property protection key is sent to the source base station.
Below by way of specific example, the essence of the technical scheme of the embodiment of the present invention is expanded on further.
The embodiment of the present invention is in UE handoff procedure, by being extended to related switching flow, and right
Hand off signaling is extended, to avoid the integrity protection failure of eating dishes without rice or wine before and after UE handoff procedures.
In this example, source base station calculates multiple integralities based on the carrier frequency point that UE and target BS are supported
Key is protected, and by the multiple tegrity protection key's synchronized transmissions calculated to target BS.
Based in the Handover request message in handoff procedure, increase extended field, show that source base station is managed
EARFCN before and after the switching of solution, specific implementation is as follows：
AS Security Information are expanded in Handover Request signalings, it is possible to plus
Enter the AS Security values and corresponding frequency range of multiple frequency ranges：
The support energy that source base station overlaps mutually according to UE Band tenabilities, the multiband attribute of Target cell
Power, such as UE support collection A：Band38/Band41, Target cell is multiband indicating cell B：
Band38/Band41, then source base station take A and B common factor, respectively according to Band38, Band41 calculate
KeNB star values.
Multiple AS Security that source base station is calculated and obtained are included in switching command handover request
Information, the handover request structures after extension are as shown in table 1 below：
Table 1
As shown in table 1, the information word of the italicized item in table, is the information word set up after extension, i.e. table
The information word AS Security Information that last in 1 is arranged are the information word set up, for carrying source base
Multiple tegrity protection keys that station is calculated.
In table 1, AS Security Information and subsequently newly-increased AS Security Information (Extend)
It is specific as follows：
Existing switching AS Security Information, wherein the KeNB values having, Next Hop Chaining
Coun, integrity protection is carried out for target BS；
Add the EARFCN for calculating the KeNB values institute foundation；
If source base station and target BS are co-frequency cell, the order that wherein AS Security Information occur,
Corresponding EARFCN can represent the EARFCN that the terminal is resident at present, such as first AS Security
Information is the EARFCN that source base station is resident according to terminal.The information element structures such as institute of table 2 after extension
Show：
Table 2
In table 2, italicized item is the information word carrier frequency point information set up after extending.
Fig. 3 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention three, as shown in figure 3, this
The inter-cell switch method of example comprises the following steps：
Step 301, source base station needs to calculate key according to UE abilities, the selection of the ability of target BS
EARFCN collection.
Specifically, source base station overlaps mutually according to UE Band tenabilities, the multiband attribute of Target cell
Tenability, such as UE support collection A：Band38/Band41, Target cell is multiband indicating cell
B：Band38/Band41, then source base station take A and B common factor, respectively according to Band38, Band41 count
Calculate KeNB star values.
Step 302, source base station calculates multiple keys respectively according to target BS multiband EARFCN, and takes
With corresponding EARFCN, sent to target BS.
Step 303, target BS obtains multiple keys and frequency, and UE abilities, choosing are analyzed according to base station ability
Switching frequency EARFCN is selected, is sent to source base station.
Step 304, target BS is according to the corresponding AS Information of switching frequency EARFCN of transmission
Carry out integrity protection.
Switching flow shown in Fig. 3 is implemented as shown in figure 4, the flow shown in Fig. 4 is real for the present invention
The hand off signaling that the UE for applying example switches to target BS from source base station interacts schematic diagram, the switching shown in Fig. 4
Flow is identical with existing switching flow, wherein, the handover that source base station is sent to target BS
Request is extended, and the handover request after extension can be found in upper table 1, table 2, here no longer
Repeat.Hand off signaling interaction flow shown in Fig. 4 is identical with existing switching flow, repeats no more here
It realizes details.
Another implementation of the embodiment of the present invention set forth below.In this example, when target BS feedback is cut
Change after frequency, source base station sends tegrity protection key.
Source is expanded based on the EARFCN or increase in the Handover request ack in handoff procedure, issued
Field is opened up, computation key is then forwarded to source base station, and concrete scheme is as follows：
Handover Request are expanded, special AS Information signalings are increased newly, by source base station weight
The tegrity protection key newly calculated is sent to target BS, newly-increased AS Information signalings such as table 3
It is shown.
The extendible frequency point informations of Handover Request ack, add in Handover Request ack and cut
The frequency point information changed such as EARFCN, is sent to source base station.Handover Request ack letters after extension
Order is as shown in table 4, and the information word of italicized item is newly-increased part.
Source base station is sent to according to the EARFCN, calculation of integrity protection key A S Information
Target BS.
Table 3
Table 4
Fig. 5 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention four, as shown in figure 5, this
The inter-cell switch method of example comprises the following steps：
Step 501, source base station sends Handover Request message to target BS.
Step 502, target BS sends the Handover Request ack message after extension to source base station,
Switching frequency EARFCN information is carried in Handover Request ack message.
Step 503, source base station recalculates tegrity protection key according to switching frequency EARFCN information,
And AS Information are sent to target BS, carry in the AS Information and recalculate integrality
Protect key.
Step 504, the tegrity protection key that target BS is sent again according to source base station carries out integrality guarantor
Shield.
Fig. 6 is the implementation process schematic diagram of the inter-cell switch method of the embodiment of the present invention four, as shown in fig. 6,
Step 5,6 flow are increased newly compared with the implementation process shown in earlier figures 4, in this example, when target base
Stand and determine UE determined by the EARFCN and target BS for the Integrity Key institute foundation that source base station is calculated
Switching EARFCN it is inconsistent when, target BS to source base station send extension Handover Request ack
UE switching frequency EARFCN information is carried in message, the Handover Request ack message.
Source base station recalculates tegrity protection key according to switching frequency EARFCN information, and to target base
Stand to send to carry in AS Information, the AS Information and recalculate tegrity protection key.
Handling process after step 6, it is identical with the handling process shown in Fig. 4, i.e., flowed by switching
Journey, makes UE successful switch to the Target cell of target BS, this example repeats no more its details.
Another implementation of the embodiment of the present invention set forth below.In this example, to Handover Request
It is extended, increases EARFCN used in source base station computation key in Handover Request message
Value or EARFCN configured informations, the Handover Request message after extension are as shown in table 5, wherein tiltedly
Body portion is the information word newly established：
Table 5
Fig. 7 is the schematic flow sheet of the inter-cell switch method of the embodiment of the present invention five, as shown in fig. 7, this
The inter-cell switch method of inventive embodiments comprises the following steps：
Step 701, source base station sends the Handover Request message after extension to target BS,
Increase EARFCN values or EARFCN used in source base station computation key in Handover Request message
Configured information, the concrete structure of the Handover Request message after extension is as shown in table 5.
Step 702, extended field of the target BS in Handover Request message, analyzes UE energy
Whether power and pre-switch frequency, switching frequency are identical with the actual switching frequency of target BS.If the same
Step 703 is performed, step 704 is performed when different.
Step 703, using the tegrity protection key carried in source base station Handover Request message
KeNB values carry out integrity protection.
Step 704, target BS calculates tegrity protection key's KeNB values according to UE switching frequency,
And carry out integrity protection using the KeNB values calculated.And send out newly-generated KeNB values to source base station
Send, the newly-generated KeNB values are sent to switching UE by source base station.
Fig. 8 is the implementation process schematic diagram of the inter-cell switch method of the embodiment of the present invention five, as shown in figure 8,
Flow shown in the implementation and Fig. 4 of this example is essentially identical, simply, to Handover in this example
The mode of Request extension of message is not quite similar.Here the details of its implementation process is repeated no more.
Fig. 9 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention one, as shown in figure 9,
The handover between cells device of this example includes determining unit 90, computing unit 91 and transmitting element 92, wherein：
Determining unit 90, for determining the to be switched target BS of the UE, and root for user equipment (UE)
The carrier frequency point information supported according to the target BS determines at least one to be switched carrier frequency point of the UE；
Computing unit 91, for being protected according to the carrier frequency period calculation of integrity of at least one carrier frequency point
Protect key；
Transmitting element 92, for the tegrity protection key calculated to be sent to the target BS.
In the embodiment of the present invention, the determining unit 90 is additionally operable to：
Before handover request Handover Request message is sent to the target BS, by the UE
And to be defined as the UE to be switched for all common carrier frequency points of carrier frequency point for supporting of the target BS
At least one carrier frequency point.
In the embodiment of the present invention, the transmitting element 90 is additionally operable to：
The tegrity protection key that the computing unit is calculated is carried in Handover Request message,
And it is close to the calculated integrity protection of target BS transmission by the Handover Request message
Key.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Fig. 9, described device is also wrapped
Include：
First expanding element (not shown in Fig. 9), for being extended to Handover Request message,
At least one Access Layer security information AS Security are set up in the Handover Request message
Information cell, and the cell of carrier frequency point information that load capacity calculation Integrity Key is based on；
The transmitting element 92, is additionally operable to：The tegrity protection key calculated is carried on Handover
In AS Security Information cells in Request message, calculation of integrity key is based on
Carrier frequency point information is carried in corresponding carrying cell, and sends the Handover to the target BS
Request message.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Fig. 9, described device is also wrapped
Include：
Receiving unit (not shown in Fig. 9), for sending Handover Request to the target BS
After message, the Handover Request Acknowledge Handover Request ack message that the target BS is sent is received；Institute
State and the to be switched carrier frequency point information of the UE is carried in Handover Request ack message.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Fig. 9, the computing unit,
It is additionally operable to after the receiving unit receives the Handover Request ack message that the target BS is sent,
Carrier frequency point information the calculation of integrity to be switched UE based on target BS transmission protects key；
The transmitting element 92, the tegrity protection key for being additionally operable to be calculated sends to the target BS.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Fig. 9, described device is also wrapped
Include：
Second expanding element (not shown in Fig. 9), for expanding Handover Request ack message
Exhibition, sets up the cell of bearing carrier wave frequency point information in the Handover Request ack message；
Carried in the cell of bearing carrier wave frequency point information in the Handover Request ack message
State the to be switched carrier frequency point information of UE.
It will be appreciated by those skilled in the art that the realization of each unit in handover between cells device shown in Fig. 9
Function can refer to the associated description of foregoing inter-cell switch method embodiment and understand.Minizone shown in Fig. 9
The function of each unit in switching device can be realized by running on the program on processor, can also pass through tool
The logic circuit of body and realize.
Handover between cells device shown in Fig. 9, it is adaptable in source base station.
Figure 10 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention two, such as Figure 10 institutes
Show, the handover between cells device of this example includes receiving unit 1001, judging unit 1002, determining unit
1003rd, transmitting element 1004 and protection location 1005, wherein：
Receiving unit 1001, the Handover Request message for receiving source base station transmission；
Judging unit 1002, for judging whether carry integrality in the Handover Request message
Key is protected, when carrying tegrity protection key, the determining unit 1003 is triggered, not carried complete
Property protection key when, trigger the transmitting element 1004；
Determining unit 1003, for determining the corresponding tegrity protection key of the to be switched carrier frequency points of UE,
Accordingly, the protection location 1005 tegrity protection key determined by carries out integrity protection；
Transmitting element 1004, for sending UE to the source base station by Handover Request ack message
To be switched carrier frequency point information；Accordingly, the receiving unit 1001, for receiving the source base station hair
The tegrity protection key that the carrier frequency point to be switched based on the UE sent is calculated, the protection location
1005, it is additionally operable to carry out integrity protection using the tegrity protection key received.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Figure 10, described device is also wrapped
Include：
First expanding element (not shown in Figure 10), for expanding Handover Request ack message
Exhibition, sets up the cell of bearing carrier wave frequency point information in the Handover Request ack message；
The transmitting element 1004, is additionally operable to the to be switched carrier frequency point information of the UE being carried on described
Sent in the cell of bearing carrier wave frequency point information in Handover Request ack message.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Figure 10, described device is also wrapped
Include：
Second expanding element (not shown in Figure 10), for being extended to Handover Request message,
At least one Access Layer security information AS Security are set up in the Handover Request message
Information cell, and the cell of carrier frequency point information that load capacity calculation Integrity Key is based on；
Accordingly, institute is carried in the AS Security Information cells in the Handover Request message
State all common carrier frequency points for the carrier frequency point that source base station is supported based on the UE and the target BS
In the tegrity protection key of calculating, the cell for the carrier frequency point information that load capacity calculation Integrity Key is based on
Carry the carrier frequency point information that calculation of integrity key is based on.
It will be appreciated by those skilled in the art that the realization of each unit in handover between cells device shown in Figure 10
Function can refer to the associated description of foregoing inter-cell switch method embodiment and understand.Minizone shown in Figure 10
The function of each unit in switching device can be realized by running on the program on processor, can also pass through tool
The logic circuit of body and realize.
Handover between cells device shown in Figure 10, it is adaptable in target BS.
Figure 11 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention three, such as Figure 11 institutes
Show, the handover between cells device of this example includes receiving unit 1101, determining unit 1102, protection location
1103rd, computing unit 1104 and transmitting element 1105, wherein：
Receiving unit 1101, the Handover Request message for receiving source base station transmission；
Determining unit 1102, for the integrity protection for determining to carry in the Handover Request message
Whether the carrier frequency point that the carrier frequency point information or carrier frequency point configured information that key is based on are indicated is treated with UE
The carrier frequency point information of switching is consistent, and the protection location 1103 is triggered when consistent；When inconsistent, institute is triggered
State computing unit 1104；
Protection location 1103, for utilizing the integrity protection carried in the Handover Request message
Key carries out integrity protection；
Computing unit 1104, it is right for protecting key based on carrier frequency point calculation of integrity to be switched UE
Ying Di, the tegrity protection key that the transmitting element 1105 is additionally operable to be calculated sends to the source base station.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Figure 11, described device is also wrapped
Include：
Expanding element (not shown in Figure 11), for being extended to Handover Request message,
The carrier frequency point that load capacity calculation tegrity protection key is based on is set up in the Handover Request message
The cell for the carrier frequency point that information or carrier frequency point configured information are indicated.
It will be appreciated by those skilled in the art that the realization of each unit in handover between cells device shown in Figure 11
Function can refer to the associated description of foregoing inter-cell switch method embodiment and understand.Minizone shown in Figure 11
The function of each unit in switching device can be realized by running on the program on processor, can also pass through tool
The logic circuit of body and realize.
Handover between cells device shown in Figure 11, it is adaptable in target BS.
Figure 12 is the structure composition schematic diagram of the handover between cells device of the embodiment of the present invention four, such as Figure 12 institutes
Show, the handover between cells device of this example includes determining unit 1201, computing unit 1202 and transmitting element
1203, wherein：
Determining unit 1201, the carrier frequency point to be switched for determining UE；
Computing unit 1202, for protecting key based on identified carrier frequency point calculation of integrity；
Transmitting element 1203, during for sending calculated tegrity protection key to target BS, also to institute
State target BS and send the carrier frequency point information that calculation of integrity protection key is based on.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Figure 12, described device is also wrapped
Include：
First expanding element (not shown in Figure 12), for being extended to Handover Request message,
The carrier frequency that load capacity calculation tegrity protection key is based on is set up in the Handover Request message
The cell for the carrier frequency point that point information or carrier frequency point configured information are indicated；
The transmitting element 1203 sends described by the Handover Request message of extension to target BS
The carrier frequency point information or carrier frequency point that the calculation of integrity of computing unit 1202 protection key is based on indicate letter
Cease the carrier frequency point indicated.
In the embodiment of the present invention, on the basis of the handover between cells device shown in Figure 12, described device is also wrapped
Include：
Receiving unit (not shown in Figure 12), for protecting close in the calculation of integrity of computing unit 1202
When the carrier frequency point that key the is based on carrier frequency point to be switched with the UE that the target BS side is determined is inconsistent,
Receive the to be switched carrier frequency point meters of the UE based on target BS side determination of the target BS transmission
The tegrity protection key of calculation.
It will be appreciated by those skilled in the art that the realization of each unit in handover between cells device shown in Figure 12
Function can refer to the associated description of foregoing inter-cell switch method embodiment and understand.Minizone shown in Figure 12
The function of each unit in switching device can be realized by running on the program on processor, can also pass through tool
The logic circuit of body and realize.
Handover between cells device shown in Figure 12, it is adaptable in source base station.
The embodiment of the present invention also describes a kind of base station, and the base station also includes the minizone of foregoing embodiments
Switching device.
, can in several embodiments provided herein, it should be understood that disclosed apparatus and method
To realize by another way.Apparatus embodiments described above are only schematical, for example, institute
The division of unit is stated, only a kind of division of logic function there can be other dividing mode when actually realizing,
Such as：Multiple units or component can be combined, or be desirably integrated into another system, or some features can be neglected
Slightly, or do not perform.In addition, the coupling each other of shown or discussed each part or directly coupling
Close or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of equipment or unit, can
Be it is electrical, machinery or other forms.
The above-mentioned unit illustrated as separating component can be or may not be it is physically separate, as
The part that unit is shown can be or may not be physical location, you can positioned at a place, also may be used
To be distributed on multiple NEs；Part or all of unit therein can be selected according to the actual needs
Realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing unit,
Can also be each unit individually as a unit, can also two or more units be integrated in one
In individual unit；Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds soft
The form of part functional unit is realized.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can
To be completed by the related hardware of programmed instruction, foregoing program can be stored in an embodied on computer readable and deposit
In storage media, the program upon execution, performs the step of including above method embodiment；And foregoing storage
Medium includes：Movable storage device, read-only storage (ROM, Read Only Memory), magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Or, if the above-mentioned integrated unit of the present invention is realized using in the form of software function module and as independently
Production marketing or in use, can also be stored in a computer read/write memory medium.Based on so
Understanding, the part that the technical scheme of the embodiment of the present invention substantially contributes to prior art in other words can
To be embodied in the form of software product, the computer software product is stored in a storage medium, bag
Some instructions are included to so that a computer equipment (can be personal computer, server or network
Equipment etc.) perform all or part of each of the invention embodiment methods described.And foregoing storage medium bag
Include：Movable storage device, read-only storage (ROM, Read Only Memory), magnetic disc or CD
Etc. it is various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, can readily occur in
Change or replacement, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should
It is defined by the scope of the claims.
Claims (27)
1. a kind of inter-cell switch method, it is characterised in that methods described includes：
The carrier frequency point information that source base station is supported according to target BS determines at least one to be switched carrier frequency point of the UE；
The source base station protects key according to the carrier frequency period calculation of integrity of at least one carrier frequency point, and the tegrity protection key calculated is sent to the target BS.
2. inter-cell switch method according to claim 1, it is characterised in that the carrier frequency point information supported according to the target BS determines at least one to be switched carrier frequency point of the UE, including：
The common carrier frequency point for the carrier frequency point that the source base station supports the UE and the target BS is defined as at least one to be switched carrier frequency point of the UE.
3. inter-cell switch method according to claim 2, it is characterised in that described to send the tegrity protection key calculated to the target BS, including：
The tegrity protection key calculated is carried in handover request Handover Request message by the source base station, and sends calculated tegrity protection key to the target BS by the Handover Request message.
4. inter-cell switch method according to claim 3, it is characterised in that methods described also includes：
Handover Request message is extended; at least one cell for the cell for the Access Layer security information ASSecurity Information for carrying the tegrity protection key that the source base station is calculated, and the carrier frequency point information being based on for load capacity calculation Integrity Key is set up in the Handover Request message.
5. inter-cell switch method according to claim 1, it is characterised in that the carrier frequency point information supported according to the target BS determines at least one to be switched carrier frequency point of the UE, including：
The source base station sends Handover Request message to the target BS, receives the Handover Request Acknowledge Handover Request ack message that the target BS is sent；The to be switched carrier frequency point information of the UE is carried in the Handover Request ack message.
6. inter-cell switch method according to claim 5, it is characterised in that the source base station is received after the Handover Request ack message that the target BS is sent, and methods described also includes：
The source base station protects key based on carrier frequency point information the calculation of integrity to be switched UE that the target BS is sent, and the tegrity protection key calculated is sent to the target BS.
7. inter-cell switch method according to claim 5, it is characterised in that methods described also includes：
Handover Request ack message is extended, the cell of bearing carrier wave frequency point information is set up in the Handover Request ack message；
The to be switched carrier frequency point information of the UE is carried in the cell of bearing carrier wave frequency point information in the Handover Request ack message.
8. a kind of inter-cell switch method, it is characterised in that methods described includes：
Target BS is received after the message of source base station transmission; judge whether carry tegrity protection key in the message; when carrying tegrity protection key; the corresponding tegrity protection key of the to be switched carrier frequency points of UE is determined, and tegrity protection key carries out integrity protection determined by；When not carrying tegrity protection key in the message; the to be switched carrier frequency point information of UE is sent to the source base station; and the tegrity protection key for the carrier frequency point calculating to be switched based on the UE that the source base station is sent is received, and utilize the tegrity protection key received to carry out integrity protection.
9. inter-cell switch method according to claim 8, it is characterised in that methods described also includes：
Handover Request ack message is extended, the cell of bearing carrier wave frequency point information is set up in the Handover Request ack message；
It is described to send the to be switched carrier frequency point information of UE to the source base station, including：
In the cell for the bearing carrier wave frequency point information that the to be switched carrier frequency point information of the UE is carried in the Handover Request ack message.
10. inter-cell switch method according to claim 8, it is characterised in that the message includes Handover Request message；Methods described also includes：
Handover Request message is extended, set up at least one Access Layer security information AS Security Information cell in the Handover Request message, and the cell of carrier frequency point information that load capacity calculation Integrity Key is based on；
Accordingly; carried in AS Security Information cells in the Handover Request message in the tegrity protection key that all common carrier frequency points for the carrier frequency point that the source base station is supported based on the UE and the target BS are calculated, the cell for the carrier frequency point information that load capacity calculation Integrity Key is based on and carry the carrier frequency point information that calculation of integrity key is based on.
11. a kind of inter-cell switch method, it is characterised in that methods described includes：
Target BS is received after the message of source base station transmission; determine whether the carrier frequency point that carrier frequency point information or carrier frequency point configured information that the tegrity protection key carried in the message is based on are indicated is consistent with the carrier frequency point information that UE is to be switched, the tegrity protection key's progress integrity protection carried in the message is utilized when consistent；When inconsistent, key is protected based on carrier frequency point calculation of integrity to be switched UE, and the tegrity protection key calculated is sent to the source base station.
12. inter-cell switch method according to claim 11, it is characterised in that the message includes Handover Request message；Methods described also includes：
Handover Request message is extended, the cell for the carrier frequency point that the carrier frequency point information or carrier frequency point configured information that load capacity calculation tegrity protection key is based on are indicated is set up in the Handover Request message.
13. a kind of inter-cell switch method, it is characterised in that methods described includes：
Source base station determines the to be switched carrier frequency points of UE, and the carrier frequency point calculation of integrity protection key based on determined by；
The source base station to target BS send calculated tegrity protection key when, also send the carrier frequency point information that is based on of calculation of integrity protection key to the target BS.
14. inter-cell switch method according to claim 13, it is characterised in that methods described also includes：
Handover request Handover Request message is extended, the cell for the carrier frequency point that the carrier frequency point information or carrier frequency point configured information that load capacity calculation tegrity protection key is based on are indicated is set up in the Handover Request message；
The carrier frequency point that the carrier frequency point information or carrier frequency point configured information that the source base station is based on by the Handover Request message of extension to the target BS transmission source base station calculation of integrity protection key are indicated.
15. inter-cell switch method according to claim 13, it is characterised in that methods described also includes：
When the calculation of integrity carrier frequency point that is based on of the protection key carrier frequency point to be switched with the UE that the target BS side is determined is inconsistent, the tegrity protection key that the carrier frequency point to be switched UE determined based on the target BS side that also receives that the target BS sends is calculated.
16. a kind of handover between cells device, it is characterised in that described device includes：Determining unit, computing unit and transmitting element, wherein：
Determining unit, the carrier frequency point information for being supported according to target BS determines at least one to be switched carrier frequency point of the UE；
Computing unit, for protecting key according to the carrier frequency period calculation of integrity of at least one carrier frequency point；
Transmitting element, for the tegrity protection key calculated to be sent to the target BS.
17. handover between cells device according to claim 16, it is characterised in that the determining unit, is additionally operable to：
All common carrier frequency points for the carrier frequency point that the UE and the target BS are supported are defined as at least one to be switched carrier frequency point of the UE.
18. handover between cells device according to claim 16, it is characterised in that described device also includes：
First expanding element, for being extended to handover request Handover Request message, set up at least one Access Layer security information AS Security Information cell in the Handover Request message, and the cell of carrier frequency point information that load capacity calculation Integrity Key is based on；
The transmitting element, is additionally operable to：The tegrity protection key calculated is carried in the AS Security Information cells in Handover Request message; the carrier frequency point information that calculation of integrity key is based on is carried in corresponding carrying cell, and sends the Handover Request message to the target BS.
19. handover between cells device according to claim 16, it is characterised in that described device also includes：
Receiving unit, for after Handover Request message is sent to the target BS, receiving the Handover Request Acknowledge Handover Request ack message that the target BS is sent；The to be switched carrier frequency point information of the UE is carried in the Handover Request ack message.
20. handover between cells device according to claim 19; it is characterized in that; the computing unit; it is additionally operable to after the receiving unit receives the Handover Request ack message that the target BS is sent, carrier frequency point information the calculation of integrity to be switched UE based on target BS transmission protects key；
The transmitting element, the tegrity protection key for being additionally operable to be calculated sends to the target BS.
21. a kind of handover between cells device, it is characterised in that described device includes：Receiving unit, judging unit, determining unit, transmitting element and protection location, wherein：
Receiving unit, the message for receiving source base station transmission；
Judging unit, for judging whether carry tegrity protection key in the message, when carrying tegrity protection key, triggers the determining unit, when not carrying tegrity protection key, triggers the transmitting element；
Determining unit, for determining the corresponding tegrity protection key of the to be switched carrier frequency points of UE, accordingly, protection location tegrity protection key determined by carries out integrity protection；
Transmitting element, for sending the to be switched carrier frequency point information of UE to the source base station；Accordingly, the receiving unit, for receiving the tegrity protection key that the carrier frequency point to be switched based on the UE that the source base station is sent is calculated, the protection location is additionally operable to carry out integrity protection using the tegrity protection key received.
22. handover between cells device according to claim 21, it is characterised in that described device also includes：First expanding element, for being extended to Handover Request Acknowledge Handover Request ack message, sets up the cell of bearing carrier wave frequency point information in the Handover Request ack message；
The transmitting element, is additionally operable to send in the cell of bearing carrier wave frequency point information that the to be switched carrier frequency point information of the UE is carried in the Handover Request ack message.
23. a kind of handover between cells device, it is characterised in that described device includes：Receiving unit, determining unit, protection location, computing unit and transmitting element, wherein：
Receiving unit, the message for receiving source base station transmission；
Whether determining unit, the carrier frequency point that the carrier frequency point information or carrier frequency point configured information that the tegrity protection key for determining to carry in the message is based on are indicated is consistent with the carrier frequency point information that UE is to be switched, and the protection location is triggered when consistent；When inconsistent, the computing unit is triggered；
Protection location, for carrying out integrity protection using the tegrity protection key carried in the message；
Computing unit, for protecting key based on carrier frequency point calculation of integrity to be switched UE, accordingly, the transmitting element is used to send the tegrity protection key calculated to the source base station.
24. handover between cells device according to claim 23, it is characterised in that the message includes Handover Request message；Described device also includes：
Expanding element, for being extended to Handover Request message, sets up the cell for the carrier frequency point that the carrier frequency point information or carrier frequency point configured information that load capacity calculation tegrity protection key is based on are indicated in the Handover Request message.
25. a kind of handover between cells device, it is characterised in that described device includes：Determining unit, computing unit and transmitting element, wherein：
Determining unit, the carrier frequency point to be switched for determining UE；
Computing unit, for protecting key based on identified carrier frequency point calculation of integrity；
Transmitting element, during for sending calculated tegrity protection key to target BS, also sends the carrier frequency point information that calculation of integrity protection key is based on to the target BS.
26. handover between cells device according to claim 25, it is characterised in that described device also includes：
First expanding element; for being extended to handover request Handover Request message, the cell for the carrier frequency point that the carrier frequency point information or carrier frequency point configured information that load capacity calculation tegrity protection key is based on are indicated is set up in the Handover Request message；
The carrier frequency point that the carrier frequency point information or carrier frequency point configured information that the transmitting element is based on by the Handover Request message of extension to the target BS transmission computing unit calculation of integrity protection key are indicated.
27. a kind of base station, it is characterised in that the base station also includes the handover between cells device any one of claim 16 to 26.
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| CN201610074813.4A CN107027118A (en) | 2016-02-02 | 2016-02-02 | Inter-cell switch method and device, base station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074813.4A CN107027118A (en) | 2016-02-02 | 2016-02-02 | Inter-cell switch method and device, base station |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371197A (en) * | 2016-05-11 | 2017-11-21 | 中国移动通信有限公司研究院 | A kind of switching method and base station |
| CN109561489A (en) * | 2017-09-26 | 2019-04-02 | 华为技术有限公司 | A kind of portions of bandwidth configuration method, device and equipment |
| WO2020010487A1 (en) * | 2018-07-09 | 2020-01-16 | 华为技术有限公司 | Cell handover method, and related apparatus |
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