CN103428857B - The differentiation radio resource management method and device of terminal - Google Patents
The differentiation radio resource management method and device of terminal Download PDFInfo
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- CN103428857B CN103428857B CN201210160475.8A CN201210160475A CN103428857B CN 103428857 B CN103428857 B CN 103428857B CN 201210160475 A CN201210160475 A CN 201210160475A CN 103428857 B CN103428857 B CN 103428857B
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Abstract
The invention discloses the differentiation radio resource management method and device of a kind of terminal.Wherein, this method includes:Acquisition needs to receive radio network controller(RNC)The International Mobile Equipment Identity of the exectorial terminal of current radio management issued(IMEI);Judge whether terminal has according to IMEI and the RNC terminal ability information pre-set and perform the current exectorial terminal capability of radio management, if it is judged that it is yes, current radio management, which is issued, to terminal performs order, if it is judged that being no, management strategy corresponding to ordering is performed to current radio management and is adjusted.By means of the invention it is possible to RRM mode is adjusted according to the IMEI of different terminals in good time so as to realize the effect of the differentiation resource management to terminal.
Description
Technical field
The present invention relates to the communications field, in particular to the differentiation radio resource management method and dress of a kind of terminal
Put.
Background technology
In 3-G (Generation Three mobile communication system)(3G)In, with enriching constantly for type of service, terminal user is using tradition
Data service service can be enjoyed while speech business.Higher requirement is all so proposed to the performance of network and terminal.
Several standards of 3G network(WCDMA(Wideband Code Division Multiple Access, WCDMA connect
Enter)、TD-SCDMA(Time Division-Synchronous Code Division Multiple Access, time division synchronous
CDMA accesses)And CDMA2000(Code Division Multiple Access 2000, CDMA access 2000))
In, WCDMA is to develop more ripe 3G standards, and its abundant terminal is also to other two industrial chains(TD-SCDMA and
CDMA2000)It has issued challenge.By contrast, TD(Time Division, time-division)Business initial stage, because industrial chain is still endless
It is kind, the problem of terminal is very deficient, and indivedual TD terminals are there is in some quality or performance.Either under which kind of standard, eventually
The otherness at end can not only influence the impression of user, can equally influence the strategy execution of network side.
RRM is responsible for the use of air interface resource, ensures the quality of service requirement of mobile subscriber, maintains system
The area of coverage of system pre-planning, Large Copacity is provided for system.For 3G systems, because power system capacity is interference-limited, so nothing
The quality of line Resource Management Algorithm directly influences power system capacity and the network coverage, turns into the weight for weighing system service quality good or not
Want performance indications.
Wireless resource management algorithm with terminal mainly from the wireless network side control of 3G systems, it is necessary to perform, specific bag
Include:The various measurements of eating dishes without rice or wine of terminal-pair report, and terminal performs operational order that network side issues etc..In 3GPP(Third
Generation Partnership Project, third generation partner program), it is specified that what terminal should be supported in agreement
Ability, such as measurement capability, including:Measurement object and measurement event, but the measurement capability of part terminal is not perfect, to association
Part measurement defined in view is not supported also, or measurement result is inaccurate, will after these measurements are reported network side by terminal
Directly affect judgement of the network side to RRM.Therefore need to design and a kind of be able to record and distinguish different terminals ability
Method, when network side performs RRM judgement, inquire about the ability and perform the radio resource management policy of differentiation.
IMEI(The International Mobile station Equipment Identity, international mobile device
Identity) it is UE(User Equipment, user equipment)One of mark in net, also referred to as string number, its maximum function
It is for assisting to distinguish handset identities.International Mobile Equipment Identity definition is divided into two kinds by 3GPP:IMEI and IMEISV, it is fixed respectively
Justice is as follows:
IMEI is made up of 15 bit digitals, wherein:TAC(Type Allocation Code, type assigned code (TAC))Take 6
Numeral;FAC(Final Assembly Code, assemble code)Take 2 numerals;SNR(Serial Number, sequence number)Take 6
Individual numeral.Also an idle digit order number is transmitted by terminal, and ordinary circumstance is used for check bit.The check bit is used for TAC, FAC
Verified with 14 numerals of SNR compositions.
IMEISV is by IMEI and SVN(Software Version Number, software version number)Composition, wherein SVN
The software version number of IMEI equipment is indicated, software version number is distributed by manufacturer.
Network side is directly affected to Radio Resource pipe for can not be recorded in correlation technique and distinguishing different terminals ability
The problem of judgement of reason, effective solution is not yet proposed at present.
The content of the invention
The invention provides the differentiation radio resource management method and device of a kind of terminal, at least to solve above-mentioned ask
Topic.
According to an aspect of the invention, there is provided a kind of differentiation radio resource management method of terminal, including:Obtain
Need to receive radio network controller(RNC)The International Mobile Equipment Identity of the exectorial terminal of current radio management issued
(IMEI);Judge whether terminal there is the current radio management of execution to hold according to IMEI and the RNC terminal ability information pre-set
The terminal capability of line command, if it is judged that being yes, issuing current radio management to terminal performs order, if it is judged that
It is no, management strategy corresponding to ordering is performed to current radio management and is adjusted.
Preferably, RNC sets terminal ability information, including:RNC will be each exectorial without radio management is performed
The IMEI number of the terminal of terminal capability is recorded in terminal ability information.
Preferably, after there is provided terminal ability information, this method also includes RNC:RNC is in the given time or predetermined
Terminal ability information is safeguarded when event occurs.
Preferably, judge whether terminal has according to IMEI and the RNC terminal ability information pre-set to perform without spool
Exectorial terminal capability is managed, including:Inquiry operation is carried out in terminal ability information according to the IMEI currently obtained;Work as end
When the IMEI currently obtained is not present in the ability information of end, determines that terminal has and perform the exectorial terminal energy of radio management
Power, otherwise, it determines terminal is without the execution exectorial terminal capability of radio management.
Preferably, the acquisition pattern for the terminal capability that each terminal recorded in terminal ability information is not supported includes:Eventually
Performance test checking in the terminal capability and/or real network of end reporting terminal manufacturer.
According to another aspect of the present invention, there is provided a kind of differentiation wireless resource management apparatus of terminal, including:Obtain
Module, need to receive radio network controller for obtaining(RNC)The state of the exectorial terminal of current radio management issued
Border mobile equipment identity(IMEI);Processing module, the terminal ability information for being pre-set according to IMEI and RNC judge terminal
Whether have and perform the current exectorial terminal capability of radio management, if it is judged that be it is yes, to terminal issue currently without
Wire management performs order, if it is judged that being no, management strategy corresponding to ordering is performed to current radio management and is adjusted.
Preferably, device also includes:Module is established, the exectorial terminal of radio management is performed for that will not have each
The IMEI of the terminal of ability is recorded in terminal ability information.
Preferably, the device also includes:Maintenance module, in the given time or when scheduled event occurs to terminal energy
Force information is safeguarded.
Preferably, processing module includes:Query unit, for being entered according to the IMEI currently obtained in terminal ability information
Row inquiry operation;Determining unit, held for when the IMEI currently obtained is not present in terminal ability information, determining that terminal has
The exectorial terminal capability of row radio management, otherwise, it determines terminal is without the execution exectorial terminal energy of radio management
Power.
Preferably, the acquisition pattern for the terminal capability that each terminal recorded in terminal ability information is not supported includes:Eventually
Performance test checking in the terminal capability and/or real network of end reporting terminal manufacturer.
By the present invention, using the terminal for pre-setting the IMEI for needing to carry out the terminal of RRM in RNC
Ability information scans for, and judging whether terminal has according to the result of search performs the current exectorial terminal of radio management
The mode of ability, solve the problems, such as prior art can not complete paired terminal differentiation RRM, and then
RRM mode can be adjusted in good time according to the IMEI of different terminals so as to realize the differentiation resource management to terminal
Effect.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the differentiation radio resource management method flow chart of terminal according to embodiments of the present invention;
Fig. 2 is the schematic diagram of terminal ability information according to embodiments of the present invention;
Fig. 3 is the differentiation RRM flow chart of terminal according to the preferred embodiment of the invention;
Fig. 4 is the structured flowchart of the differentiation wireless resource management apparatus of terminal according to embodiments of the present invention;
Fig. 5 is the structured flowchart of the differentiation wireless resource management apparatus of terminal according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Fig. 1 is the differentiation radio resource management method flow chart of terminal according to embodiments of the present invention, as shown in figure 1,
This method mainly includes the following steps that(Step S102- steps S104):
Step S102, acquisition need to receive RNC(Radio Network Controller, radio network controller)Issue
The exectorial terminal of current radio management International Mobile Equipment Identity(IMEI);
Step S104, judge whether terminal has according to IMEI and the RNC terminal ability information pre-set and perform currently
The exectorial terminal capability of radio management, if it is judged that being yes, issuing current radio management to terminal performs order, such as
Fruit judged result is no, and management strategy corresponding to ordering is performed to current radio management and is adjusted.
Before the step S102 of the present embodiment, RNC sets terminal ability information to include:RNC will not have each
The IMEI number for performing the terminal of the exectorial terminal capability of radio management is recorded in terminal ability information.In practical application
In, RNC is after there is provided terminal ability information, to terminal ability information when RNC is in the given time or scheduled event occurs
Safeguarded, certainly, in actual applications, attended operation can be carried out before step S102, can after step s 102,
Before step S104, it can also carry out after step s 104, that is to say, that the scheduled time only basis can be actually needed progress
Setting(It need not consider whether to must be set to the time into the time required for completion step S102 and step S104), predetermined thing
Part might not occur in actual applications, but can once occur and carry out attended operation to terminal ability information.
For example, in actual applications, radio network controller(RNC)Establish and safeguard a terminal capability based on IMEI
Table(I.e. above-mentioned terminal ability information), for recording the IMEI number for the terminal for not supporting certain ability.Institute in the terminal capability table
The terminal capability of record can be directed to any one terminal in terminal capability as defined in the measurement capability or 3GPP agreements of terminal
Ability.The basic format of the terminal capability table is as shown in Figure 2(Fig. 2 is showing for terminal ability information according to embodiments of the present invention
It is intended to).
In the step S104 of the present embodiment, judge that terminal is according to IMEI and the RNC terminal ability information pre-set
During no terminal capability exectorial with execution radio management, following manner can be taken to implement:According to what is currently obtained
IMEI carries out inquiry operation in terminal ability information, when the IMEI currently obtained is not present in terminal ability information, it is determined that
Terminal, which has, performs the exectorial terminal capability of radio management, otherwise, it determines terminal performs life without radio management is performed
The terminal capability of order.
For example, in actual applications, it can implement as follows:
RNC first obtains the IMEI information of terminal, so before the execution order of certain RRM is issued to terminal
The terminal capability table is inquired about according to IMEI number afterwards, determines whether present terminal supports GL.Determined according to Query Result
With following two kinds of processing modes:
(1)If terminal supports GL, RNC normally issues the order of the RRM to terminal;
(2)If terminal does not support GL, RNC should take corresponding adjustable strategies.
In actual applications, the acquisition pattern bag for the terminal capability that each terminal recorded in terminal ability information is not supported
Include:Performance test checking in the terminal capability and/or real network of terminal reporting terminal manufacturer.That is, above-mentioned terminal
The source of the terminal ability information recorded in capability list includes but is not limited to:The terminal capability of manufacturer terminal confirms and real network
In performance test checking etc..
The differentiation radio resource management method of above-mentioned terminal is simply introduced with reference to preferred embodiment.
Fig. 3 is the differentiation RRM flow chart of terminal according to the preferred embodiment of the invention, as shown in figure 3,
The main bag following steps of the flow(Step S302-S312):
Step S302, RNC are established and are safeguarded a terminal capability table based on IMEI;
Step S304, the corresponding ability information of terminal recorded by terminal capability according to measured result or manufacturer's confirmation
In table;
It is related first to obtain terminal before the execution order of certain RRM is issued to terminal by step S306, RNC
Ability information;
Step S308, RNC inquiry terminal capability table, determines whether present terminal supports the terminal capability of correlation, if it is,
Step S310 is performed, otherwise, performs step S312;
Step S310, RNC normally issue the execution order of RRM to terminal;
Step S312, RNC take corresponding adjustable strategies.
With reference to four preferred embodiments of the embodiment of the present invention to the differentiation radio resource management method of terminal
It is further described in more detail.
Embodiment 1
When RNC performs radio link quality judgement, it is necessary to obtain the ISCP of terminal(Interference Signal
Code Power, slot interfering signal of time code power)Measurement.
Step 1, RNC are established and are safeguarded the terminal capability table based on IMEI, can be recorded in the table and not supported descending ISCP
The IMEI number of the terminal of measurement;
Step 2, the descending ISCP measurement capabilities for verifying in existing network different money terminals, for not supporting ISCP reporting events
Terminal, or the terminal that measurement is inaccurate is all recorded in the terminal capability table based on IMEI;
Step 3, RNC first obtain the IMEI information of terminal before the execution order of ISCP measurements is issued to terminal;
Step 4, RNC inquire about the terminal capability table according to IMEI number, judge whether present terminal supports descending ISCP to survey
Amount, if it does not, performing step 5, if supported, perform step 6;
Step 5, it will determine that the measurement of radio link quality is changed to descending BLER(Block Error Ratio, Block Error Rate),
Re-execute the judgement of descending BLER measurement capabilities;
Step 6, RNC normally issue the execution order of descending ISCP measurements to terminal.
Embodiment 2
, it is necessary to obtain the SFN of terminal when RNC performs the positioning judgement of terminal(System Frame Number, system-frame
Number)- SFN observed time differences(Observed Time Difference)Measurement.
Step 1, RNC are established and are safeguarded the terminal capability table based on IMEI, can be recorded in the table and not supported SFN-SFN to see
Examine the IMEI number of the terminal of time difference measurements;
Step 2, the SFN-SFN observed time difference measurement capabilities for verifying in existing network different money terminals, for not supporting this
The terminal of measurement, all it is recorded in the terminal capability table based on IMEI;
Step 3, RNC first obtain terminal before the execution order of SFN-SFN observing time difference measurements is issued to terminal
IMEI information;
Step 4, RNC inquire about the terminal capability table according to IMEI number, judge whether present terminal supports SFN-SFN to observe
Time difference measurements, if it does not, performing step 5, if supported, perform step 6;
Step 5, it will determine that the measurement of terminal location information is changed to TADV(Timing Advance, pre-set time), hold again
Row pre-set time(TADV)The judgement of measurement capability;
Step 6, RNC normally issue the execution order of descending SFN-SFN observing times difference measurements to terminal
Embodiment 3
RNC is performed when terminal is adjudicated from 3G systems to the intersystem handover of 2G systems, it is necessary to obtain terminal-pair 2G systems
RSSI(Received Signal Strength Indication, received signal strength indicator)Measurement.
Step 1, RNC are established and are safeguarded the terminal capability table based on IMEI, can be recorded in the table and not supported what 2G was measured
The IMEI number of terminal;
Step 2, the 2G measurement capabilities for verifying in existing network different money terminals, for not supporting BSIC(Base Station
Identity Code, base station identity code)The terminal of verification, or the terminal that 2G measurements are inaccurate, are all recorded in based on IMEI's
In terminal capability table;
Step 3, RNC first obtain the IMEI information of terminal before the execution order of 2G measurements is issued to terminal;
Step 4, RNC inquire about the terminal capability table according to IMEI number, judge whether present terminal supports 2G to measure, if
Do not support, perform step 5, if supported, perform step 6;
Step 5, RNC do not issue 2G measurements to terminal, are resided in as far as possible in 3G network;
Step 6, RNC normally issue the execution order of 2G measurements to terminal.
Embodiment 4
RNC orders terminal performs DPCH(Dedicated Physical Channel, DPCH)Time division multiplexing
, it is necessary to obtain the ability that terminal supports DPCH multiplexings when tactful.
Step 1, RNC are established and are safeguarded the terminal capability table based on IMEI, can be recorded in the table and not supported DPCH to be multiplexed
The IMEI number of the terminal of ability;
Step 2, the DPCH multiplexing capacities for verifying in existing network different money terminals, for the terminal for not supporting DPCH to be multiplexed,
All it is recorded in the terminal capability table based on IMEI;
Step 3, RNC first obtain the IMEI information of terminal before the execution order of DPCH multiplexings is issued to terminal;
Step 4, RNC inquire about the terminal capability table according to IMEI number, judge whether present terminal supports DPCH to be multiplexed, such as
Fruit is not supported, performs step 5, if supported, performs step 6;
Step 5, RNC do not issue DPCH multiplexing commands to terminal, i.e. the user still by the way of exclusive physical channel,
Without being time-multiplexed same physical channel with other users;
Step 6, RNC normally issue the execution order of DPCH multiplexings to terminal.
By the differentiation radio resource management method of above-mentioned terminal, can solve prior art can not complete paired terminal
The problem of differentiation RRM, and then RRM can be adjusted in good time according to the IMEI of different terminals
Mode is so as to realizing the effect of the differentiation resource management to terminal.
Fig. 4 is the structured flowchart of the differentiation wireless resource management apparatus of terminal according to embodiments of the present invention, the device
The differentiation radio resource management method of the terminal provided for realizing above-described embodiment, as shown in figure 4, the device mainly wraps
Include:Acquisition module 10 and processing module 20.Wherein, acquisition module 10, need to receive radio network controller for obtaining(RNC)
The International Mobile Equipment Identity of the exectorial terminal of current radio management issued(IMEI);Processing module 20, is connected to and obtains
Modulus block 10, the terminal ability information for being pre-set according to IMEI and RNC judge whether terminal has execution current wireless
Exectorial terminal capability is managed, if it is judged that being yes, issuing current radio management to terminal performs order, if sentenced
Disconnected result is no, and management strategy corresponding to ordering is performed to current radio management and is adjusted.
Fig. 5 is the structured flowchart of the differentiation wireless resource management apparatus of terminal according to the preferred embodiment of the invention, such as
Shown in Fig. 5, the device that the preferred embodiment provides can also include:Module 30 is established, is performed wirelessly for that will not have each
The IMEI for managing the terminal of exectorial terminal capability is recorded in terminal ability information.In actual applications, the device is also
Including:Maintenance module 40, it is connected to and establishes module 30, for believes in the given time or when scheduled event occurs terminal capability
Breath is safeguarded(Certainly, in actual applications, maintenance module 40, may be located between acquisition module 10 and processing module 20,
It can also be located at after processing module 20).
In the preferred embodiment, processing module 20 can include:Query unit 22, for according to the IMEI currently obtained
Inquiry operation is carried out in terminal ability information;Determining unit 24, query unit 22 is connected to, for when in terminal ability information
During in the absence of the IMEI currently obtained, determine that terminal has and perform the exectorial terminal capability of radio management, otherwise, it determines eventually
End is without the execution exectorial terminal capability of radio management.
In actual applications, the acquisition pattern for the terminal capability that each terminal recorded in terminal capability table is not supported can be with
Including:Performance test checking in the terminal capability and/or real network of terminal reporting terminal manufacturer.
The differentiation wireless resource management apparatus of the terminal provided using above-described embodiment, can solve prior art can not
The problem of differentiation RRM of complete paired terminal, and then can be adjusted in good time according to the IMEI of different terminals
RRM mode is so as to realizing the effect of the differentiation resource management to terminal.
As can be seen from the above description, the present invention realizes following technique effect:It will need to carry out Radio Resource pipe
The IMEI of the terminal of reason scans in the RNC terminal ability informations pre-set, whether judges terminal according to the result of search
With the current exectorial terminal capability of radio management is performed, solve prior art can not complete paired terminal differentiation without
The problem of line resource management, specifically, the ability of its own can be recorded according to the IMEI number of different terminals, be performed in network side
When RRM is adjudicated, inquire about the ability and perform corresponding strategy, influence, enter so as to evade the differentiation of terminal capability
And RRM mode can be adjusted in good time according to the IMEI of different terminals and finally realize the difference to terminal by having reached
Change the effect of resource management.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. differentiation radio resource management method of terminal, it is characterised in that including:Obtaining needs the world movement for receiving the exectorial terminal of current radio management that radio network controller (RNC) issues to set Standby identity IMEI;Judge the terminal is worked as described in whether having execution according to the IMEI and the RNC terminal ability information pre-set The preceding exectorial terminal capability of radio management, if it is judged that being yes, the current radio management is issued to the terminal Order is performed, if it is judged that being no, management strategy corresponding to ordering is performed to the current radio management and is adjusted.
- 2. according to the method for claim 1, it is characterised in that the RNC sets the terminal ability information, including:Each IMEI without the terminal for performing the exectorial terminal capability of radio management is recorded in the end by the RNC Hold in ability information.
- 3. according to the method for claim 2, it is characterised in that the RNC after there is provided the terminal ability information, Methods described also includes:The terminal ability information is safeguarded when the RNC is in the given time or scheduled event occurs.
- 4. according to the method for claim 2, it is characterised in that the terminal pre-set according to the IMEI and the RNC Ability information judges whether the terminal has the execution exectorial terminal capability of radio management, including:Inquiry operation is carried out in the terminal ability information according to the IMEI currently obtained;When be not present in the terminal ability information it is described currently obtain IMEI when, determine that the terminal has and perform the nothing The exectorial terminal capability of wire management, otherwise, it determines the terminal is without the execution radio management exectorial end End ability.
- 5. the method according to any one of claim 2 to 4, it is characterised in that recorded in the terminal ability information The acquisition pattern for the terminal capability that each terminal is not supported includes:The terminal capability and/or actual net of terminal reporting terminal manufacturer Performance test checking in network.
- A kind of 6. differentiation wireless resource management apparatus of terminal, it is characterised in that including:Acquisition module, for obtaining the current radio management exectorial end for needing reception radio network controller (RNC) to issue The International Mobile Equipment Identity IMEI at end;Whether processing module, the terminal ability information for being pre-set according to the IMEI and the RNC judge the terminal With the exectorial terminal capability of the current radio management is performed, if it is judged that being yes, institute is issued to the terminal State current radio management and perform order, if it is judged that being no, the current radio management is performed and managed corresponding to order Strategy is adjusted.
- 7. device according to claim 6, it is characterised in that described device also includes:Module is established, for each IMEI without the terminal for performing the exectorial terminal capability of radio management to be recorded in In the terminal ability information.
- 8. device according to claim 6, it is characterised in that described device also includes:Maintenance module, for being safeguarded in the given time or when scheduled event occurs to the terminal ability information.
- 9. device according to claim 8, it is characterised in that the processing module includes:Query unit, for carrying out inquiry operation in the terminal ability information according to the IMEI currently obtained;Determining unit, for when in the terminal ability information be not present it is described currently obtain IMEI when, determine the terminal With the exectorial terminal capability of radio management is performed, otherwise, it determines the terminal is without the execution no spool Manage exectorial terminal capability.
- 10. the device according to any one of claim 7 to 9, it is characterised in that recorded in the terminal ability information The acquisition pattern for the terminal capability that each terminal is not supported includes:The terminal capability and/or actual net of terminal reporting terminal manufacturer Performance test checking in network.
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US20030236981A1 (en) * | 2002-06-20 | 2003-12-25 | International Business Machines Corporation | System and method for digital signature authentication of SMS messages |
CN1774123A (en) * | 2004-11-10 | 2006-05-17 | 华为技术有限公司 | Method for preventing user with 3G ability from using transition right-identification mode |
CN102271021A (en) * | 2010-06-02 | 2011-12-07 | 华为技术有限公司 | cooperative spectrum sensing method, base station and terminal |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20030236981A1 (en) * | 2002-06-20 | 2003-12-25 | International Business Machines Corporation | System and method for digital signature authentication of SMS messages |
CN1774123A (en) * | 2004-11-10 | 2006-05-17 | 华为技术有限公司 | Method for preventing user with 3G ability from using transition right-identification mode |
CN102271021A (en) * | 2010-06-02 | 2011-12-07 | 华为技术有限公司 | cooperative spectrum sensing method, base station and terminal |
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