CN102316585B - CDMA (Code Division Multiple Access)-based wireless resource allocation method, device and equipment - Google Patents
CDMA (Code Division Multiple Access)-based wireless resource allocation method, device and equipment Download PDFInfo
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- CN102316585B CN102316585B CN201010223565.8A CN201010223565A CN102316585B CN 102316585 B CN102316585 B CN 102316585B CN 201010223565 A CN201010223565 A CN 201010223565A CN 102316585 B CN102316585 B CN 102316585B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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Abstract
The invention discloses a CDMA (Code Division Multiple Access)-based wireless resource allocation method, device and equipment, applied to a CDMA-based mobile communication system and used for accurately distinguishing a dedicated network AT (Access Terminal) and a non-dedicated network AT in an application scene of a dedicated service network so as to improve the service quality of the dedicated service network. The wireless resource allocation method comprises the steps of: acquiring an RTD (Round Trip Delay) attribute value of a reference AT, and an RTD attribute value of each AT in the same base station cell with the reference AT according to an equipment identification of an appointed reference AT; respectively determining a difference absolute value of the acquired RTD attribute value of each AT and the reference AT; and determining the AT as the dedicated network AT, and allocating wireless resources meeting the demands for the determined dedicated network AT, wherein the difference absolute value of the AT and the RTD attribute value of the reference AT does not exceed the set mobile region range parameter value.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of wireless resource allocation methods based on CDMA, device and equipment.
Background technology
Based on CDMA (Code Division Multiple Access, code division multiple access access) mobile communication system in, along with the diversification (high-speed railway covering, in-door covering, high building covering etc.) of various application scenarios, and under different application scene AT (Access Terminal, access terminal) requirement of service quality is constantly promoted, occurred various private services network, the AT that private services network is served is called private network AT.Such as, it is be the AT on service high-speed railway and the private services network of building that high-speed railway covers private network, and private network AT is very high to the quality of service requirement of private services network.
For the above-mentioned application scenarios providing private services network, the quality of service requirement of private network AT to private services network is more and more higher.But in actual applications, being difficult to control non-private network AT accesses in private services network, the non-private network AT of access private services network can share the base station cell capacity of private services network, if the non-private network AT of access private services network is too much, most of Radio Resource of private services network will be taken by non-private network AT, thus make private network AT cannot be assigned to enough Radio Resources, thus cause the service quality of private services network poor, reduce private network AT and experience.
Therefore, under the application scenarios of private services network, how accurately distinguishing private network AT and non-private network AT, the service quality promoting private services network becomes one of problem demanding prompt solution.
Summary of the invention
The embodiment of the present invention provides a kind of wireless resource allocation methods based on CDMA, device and equipment, be applied to the mobile communication system based on CDMA, in order under the application scenarios of private services network, accurately distinguish private network AT and non-private network AT, promote the service quality of private services network.
The embodiment of the present invention provides a kind of wireless resource allocation methods based on CDMA, comprising:
Gather the described loop time delay RTD property value with reference to AT according to the device identification of the reference access terminal AT of specifying and gather and the described RTD property value being in each AT of same base station cell with reference to AT;
Determine the absolute difference of each AT and the RTD property value with reference to AT collected respectively;
The AT being no more than the moving area range parametric values of setting with the absolute difference of RTD property value with reference to AT is defined as private network AT, and distributes the Radio Resource satisfied the demands for the private network AT determined.
The embodiment of the present invention provides a kind of radio resource allocation apparatus based on CDMA, comprising:
Collecting unit, for gathering the described loop time delay RTD property value with reference to AT and gathering and the described RTD property value being in each AT of same base station cell with reference to AT according to the device identification of the reference access terminal AT of specifying;
Computing unit, for determining the absolute difference of each AT and the RTD property value with reference to AT collected respectively;
Determining unit, is defined as private network AT for the AT absolute difference with the RTD property value with reference to AT being no more than the moving area range parametric values of setting;
Allocation units, distribute for the private network AT determined for described determining unit the Radio Resource satisfied the demands.
A kind of base station control device, comprises the above-mentioned radio resource allocation apparatus based on CDMA.
The wireless resource allocation methods based on CDMA that the embodiment of the present invention provides, device and equipment, according to the reference AT that the device identification identification pre-set is specified, gather with reference to AT and the RTD property value of each AT being in same base station cell with this reference AT, and determine the absolute difference of each AT and the RTD property value with reference to AT, when certain AT is no more than with the absolute difference with reference to AT the moving area range parametric values preset, determine that this AT is private network AT, and carry out the distribution of private network Radio Resource for it.By accurately distinguishing private network AT and non-private network AT, the service quality of private network AT can be ensured, thus promote the service quality of private services network.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Fig. 1 is according to the locking moving area schematic diagram determined with reference to AT in the embodiment of the present invention;
The wireless resource allocation methods flow chart based on CDMA that Fig. 2 provides for the embodiment of the present invention;
The radio resource allocation apparatus structured flowchart based on CDMA that Fig. 3 a provides for the embodiment of the present invention;
In the radio resource allocation apparatus that Fig. 3 b provides for the embodiment of the present invention, the one of allocation units may structured flowchart;
Fig. 4 is that embodiment of the present invention high-speed railway covers wireless resource allocation methods flow chart in private network.
Embodiment
The embodiment of the present invention provides a kind of wireless resource allocation methods based on CDMA, device and equipment, in order under the application scenarios of private services network, accurately distinguishes private network AT and non-private network AT, promotes the service quality of private services network.The scheme that the embodiment of the present invention provides is applicable to the various mobile communication system based on CDMA, such as, cdma system in 2G (Generation Mobile Telecommunication System) system, the CDMA2000 system in 3G (3G (Third Generation) Moblie) system, etc.
Based in the mobile communication system of CDMA, RTD (Round Trip Delay, loop time delay) property value reflection AT reverse signal arrives the chain-circuit time delay of base station, by the tolerance to RTD property value, can judge that AT leaves the distance of serving BS.In a cdma system, described base station refers to BTS (BaseTransceiver Station), and in the cdma 2000 system, described base station refers to NodeB.
Based on this, in order to based in the mobile communication system of CDMA, under the application scenarios of private services network, accurate differentiation private network AT and non-private network AT, promote the service quality of private services network, the embodiment of the present invention determines a locking moving area by following the tracks of the preassigned RTD property value with reference to AT, as shown in Figure 1, AT in this locking moving area is divided into private network AT, AT outside this locking moving area is divided into non-private network AT, and namely the distribution carrying out high priority radio resource for the AT in this locking moving area distributes the Radio Resource satisfied the demands.In embodiments of the present invention, the central point locking moving area is determined according to the RTD property value of the reference AT specified, as the benchmark of locking moving area, and determine according to the moving area range parametric values pre-set the scope locking moving area, determine whether this AT is private network AT by the AT compared be in same base station cell with reference to AT with the absolute difference of the RTD property value with reference to AT, when determining that certain AT is private network AT, for it distributes the Radio Resource satisfied the demands.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein is only for instruction and explanation of the present invention, be not intended to limit the present invention, and when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
As shown in Figure 2, the wireless resource allocation methods based on CDMA that the embodiment of the present invention provides, comprises the steps:
S201, the RTD property value gathering this reference AT according to the device identification of the reference AT (accessing terminal) specified and collection and this reference AT are in the RTD property value of each AT of same base station cell;
In concrete enforcement, can specify with reference to AT in advance, and the device identification of this reference AT is set, when the device identification by arranging detects this reference AT, just can gather the RTD property value of this reference AT according to the device identification of this reference AT pre-set, and to gather and this reference AT is in the RTD property value of each AT of same base station cell;
It should be noted that, in the coverage of same private services network, a device identification with reference to AT only need be set; When the coverage of different private services network, need to arrange the device identification with reference to AT respectively; The device identification of the reference AT pre-set can be HardwareID (hardware device mark) also can be MNID (mobile node mark), and set device identification can be used for identifying with reference to AT.
S202, determine the absolute difference of each AT of collecting and the RTD property value with reference to AT respectively;
In concrete enforcement, calculate the absolute difference of each AT and the RTD property value with reference to AT collected respectively;
S203, the AT being no more than the moving area range parametric values of setting with the absolute difference of RTD property value with reference to AT is defined as private network AT, and distributes the Radio Resource satisfied the demands for the private network AT determined.
In concrete enforcement, the moving area range parametric values comparing that calculate and each AT with the RTD property value with reference to AT of be in same base station cell with reference to AT absolute difference respectively and pre-set, when being no more than with the absolute difference of the RTD property value with reference to AT the moving area range parametric values pre-set with the AT being in same base station cell with reference to AT, determine that this AT is private network AT, and distribute for this private network AT the Radio Resource satisfied the demands.
Preferably, in concrete enforcement, can for the concrete condition of the continuous change of AT quantity in access private services network, periodically gather and be in the RTD property value of each AT of same base station cell with reference to AT and with reference AT, on the basis periodically gathered, need the absolute difference of each AT and the RTD property value with reference to AT determining respectively to collect in same period.The size of collection period can be arranged as required.Before each AT determining respectively to collect in same period and the absolute difference with reference to the RTD property value of AT, need the RTD property value of each AT using the RTD property value of the reference AT collected in current period and be in same base station cell with this reference AT, upgrade the RTD property value of the reference AT collected in the last cycle and the RTD property value of each AT, guarantee to use the up-to-date RTD property value collected to carry out the calculating of absolute difference.
In concrete enforcement, when the private network AT distributing radio resource for determining, when remaining assignable Radio Resource and can meeting the Radio Resource of this private network AT demand, then from the assignable Radio Resource of residue, distribute for this private network AT the Radio Resource satisfied the demands; When remaining assignable Radio Resource and can not meeting the Radio Resource of this private network AT demand, then the absolute difference with the described RTD property value with reference to AT is exceeded wireless resource scheduling that the AT of the moving area range parametric values of setting and non-private network AT takies to this private network AT.
Based on same inventive concept, a kind of radio resource allocation apparatus based on CDMA and equipment is additionally provided in the embodiment of the present invention, due to these devices and equipment similar to the above-mentioned wireless resource allocation methods based on CDMA with the principle that method is dealt with problems, therefore the enforcement of these devices and equipment see the enforcement of the above-mentioned wireless resource allocation methods based on CDMA, can repeat part and repeats no more.
As shown in Figure 3 a, based on the one possibility structure of the radio resource allocation apparatus of CDMA, comprising:
Collecting unit 301, for gathering the RTD property value of this reference AT and gathering and this reference AT is in the RTD property value of each AT of same base station cell according to the device identification of the reference AT specified;
Computing unit 302, for determining the absolute difference of each AT and the RTD property value with reference to AT collected respectively;
Determining unit 303, is defined as private network AT for the AT absolute difference with the RTD property value with reference to AT being no more than the moving area range parametric values of setting;
Allocation units 304, distribute for the private network AT determined for determining unit 303 Radio Resource satisfied the demands.
In concrete enforcement, collecting unit 301 is specifically for periodically gathering the described RTD property value with reference to AT and being in the RTD property value of each AT of same base station cell with described reference AT; Computing unit 302 is for determining the absolute difference of each AT and the RTD property value with reference to AT collected in same period respectively.
In concrete enforcement, the radio resource allocation apparatus based on CDMA can also comprise:
Updating block 305, before absolute difference for the RTD property value of the reference AT that determines respectively to collect in same period at computing unit 302 and each AT, use the RTD property value of reference AT and the RTD property value of each AT that collect in the RTD property value of the RTD property value of reference the AT collected in current period and each AT renewal last cycle.
As shown in Figure 3 b, in concrete enforcement, allocation units 304 specifically comprise:
Judgment sub-unit 3041, remains for judging the Radio Resource whether assignable Radio Resource can meet private network AT demand, and exports judged result;
Distribute subelement 3042, when the judged result that judgment sub-unit 3041 exports is for being, for private network AT distributes the Radio Resource satisfied the demands from the assignable Radio Resource of residue; When the judged result that judgment sub-unit 3041 exports is no, the wireless resource scheduling taken by the AT that the absolute difference with the RTD property value with reference to AT exceedes the moving area range parametric values of setting is to private network AT.
For convenience of description, each several part of the above radio resource allocation apparatus based on CDMA is divided into each module (or unit) according to function and describes respectively.Certainly, the function of each module (or unit) can be realized in same or multiple software or hardware when implementing of the present invention.
Because base station control device controls one group of base station, wireless network is managed, i.e. management of base station community and wireless channel thereof, and the operation and maintenance of wireless device, and provide base station to the interface of MSC (Mobile SwitchCenter, mobile switching centre).In a cdma system, described base station control device refers to BSC (Base Station Controller, base station controller), and in the cdma 2000 system, described base station control device refers to RNC (radio network controller).That is tried one's best by relevant Radio Control Function focuses on base station control device, can simplify base station equipment.Therefore, in embodiments of the present invention, the radio resource allocation apparatus based on CDMA is generally arranged in base station control device, controls the allocation of radio resources based on CDMA by base station control device.It should be noted that, be arranged on by the above-mentioned radio resource allocation apparatus based on CDMA in base station control device is a kind of better embodiment, in concrete enforcement, can according to the actual needs the above-mentioned radio resource allocation apparatus based on CDMA be arranged in miscellaneous equipment, such as, in base station or in newly added equipment.
In order to understand embodiments of the present invention better, private services network covers private network for the high-speed railway in cdma system, the wireless resource allocation methods based on CDMA is described, supposes to be provided with the above-mentioned radio resource allocation apparatus based on CDMA in BSC.
In concrete enforcement, can be fixed on the train of running at high speed with reference to AT, when BSC detects with reference to AT, the private network AT that the method namely provided by the embodiment of the present invention is embodied as in high-speed railway covering private network distributes the Radio Resource satisfied the demands.As shown in Figure 4, comprise the steps:
S401, BSC open as the private network AT in high-speed railway covering private network distributes the function of the Radio Resource satisfied the demands;
In concrete enforcement, BSC opens as the private network AT in high-speed railway private network distributes the function of the Radio Resource satisfied the demands, and in the process that bullet train travels, BSC controls according to reference to AT the change that high-speed railway covers the locking moving area that private network is served;
S402, BSC arrange the device identification with reference to AT;
In concrete enforcement, BSC according to cdma system agreement, can arrange a HardwareID with reference to AT, for identifying with reference to AT; Or BSC, according to cdma system agreement, arranges a MNID with reference to AT.
S403, BSC arrange moving area range parametric values;
In concrete enforcement, BSC arranges moving area range parametric values TimeOffset according to actual needs, and this parameter value can be as accurate as 1/8Chip unit;
S404, BSC gather same period internal reference AT and are in the RTD property value of each AT of same base station cell with reference AT;
In concrete enforcement, the network coverage situation that BSC covers private network according to train running speed and actual high-speed railway determines that the collection period of RTD property value is T, gathers the RTD property value with reference to AT and be stored as TagRTD in this collection period T according to HardwareID or MNID of the reference AT pre-set; And in same collection period T, gather the RTD property value being in each AT of same base station cell with this reference AT respectively, and be stored as CurRTD;
S405, BSC calculate respectively and judge each | and whether TagRTD-CurRTD| is less than or equal to TimeOffset, if so, then performs step 407, otherwise, perform step 406;
S406, BSC are the distribution that AT carries out the general mode Radio Resource of system default;
S407, BSC are the distribution that AT carries out high priority radio resource, are this AT and distribute the Radio Resource satisfied the demands;
In concrete enforcement, calculate | the value of TagRTD-CurRTD|, when | when the value of TagRTD-CurRTD| is greater than TimeOffset, BSC is left intact, and carries out the distribution of the general mode Radio Resource of system default; When | when the value of TagRTD-CurRTD| is less than or equal to TimeOffset, this AT is defined as private network AT, for this private network AT distributes the Radio Resource satisfied the demands.
When train travels in all base stations that same high-speed railway covers private network covering, all can judge whether with the AT being in same base station cell with reference to AT be the private network AT that high-speed railway covers private network according to this flow process, and distribute the Radio Resource satisfied the demands for private network AT; When train crosses high-speed railway covers private network traveling, each high-speed railway covers private network and all needs to arrange identical device identification to identify with reference to AT, when train sails this high-speed railway covering private network coverage into, BSC detects with reference to after AT by device identification, the method that thered is provided by the embodiment of the present invention judges whether with the AT being in same base station cell with reference to AT be private network AT, and distributes the Radio Resource satisfied the demands for private network AT.Often row sail the train that high-speed railway covers private network coverage into all needs to install with reference to AT and pre-sets the device identification of this reference AT, could open as private network AT distributes the function of the Radio Resource satisfied the demands.
The method of the allocation of radio resources based on CDMA that the embodiment of the present invention provides, device and equipment, according to the reference AT that the device identification identification pre-set is specified, gather with reference to AT and the RTD property value of each AT being in same base station cell with this reference AT, and determine the absolute difference of each AT and the RTD property value with reference to AT, when certain AT is no more than with the absolute difference with reference to AT the moving area range parametric values preset, determine that this AT is private network AT, and carry out the distribution of high priority radio resource for it.By accurately distinguishing private network AT and non-private network AT, the service quality of private network AT can be ensured, thus promote the service quality of private services network.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1., based on a wireless resource allocation methods of code division multiple access access CDMA, it is characterized in that, comprising:
Gather the described loop time delay RTD property value with reference to AT according to the device identification of the reference access terminal AT of specifying and gather and the described RTD property value being in each AT of same base station cell with reference to AT;
Determine the absolute difference of each AT and the RTD property value with reference to AT collected respectively;
The AT being no more than the moving area range parametric values of setting with the absolute difference of RTD property value with reference to AT is defined as private network AT, and distributes the Radio Resource meeting its demand for the private network AT determined.
2. the method for claim 1, is characterized in that, periodically gathers the described RTD property value with reference to AT and is in the RTD property value of each AT of same base station cell with described reference AT; And,
Determine the absolute difference of each AT and the RTD property value with reference to AT collected in same period respectively.
3. method as claimed in claim 2, is characterized in that, before determining the absolute difference of each AT and the RTD property value with reference to AT collected in same period respectively, also comprises:
Use the RTD property value of reference AT and the RTD property value of each AT that collect in the RTD property value of the RTD property value of the reference AT collected in current period and each AT renewal last cycle.
4. the method as described in claim 1,2 or 3, is characterized in that, the described private network AT for determining distributes the Radio Resource meeting its demand, specifically comprises:
When remaining assignable Radio Resource and can meeting the Radio Resource of private network AT demand, for private network AT distributes the Radio Resource satisfied the demands from the assignable Radio Resource of residue;
When remaining assignable Radio Resource and can not meeting the Radio Resource of private network AT demand, the wireless resource scheduling taken by the AT that the absolute difference with the RTD property value with reference to AT exceedes the moving area range parametric values of setting is to private network AT.
5. the method for claim 1, is characterized in that, described device identification comprises hardware device mark HardwareID or mobile node mark MNID.
6., based on a radio resource allocation apparatus of code division multiple access access CDMA, it is characterized in that, comprising:
Collecting unit, for gathering the described loop time delay RTD property value with reference to AT and gathering and the described RTD property value being in each AT of same base station cell with reference to AT according to the device identification of the reference access terminal AT of specifying;
Computing unit, for determining the absolute difference of each AT and the RTD property value with reference to AT collected respectively;
Determining unit, is defined as private network AT for the AT absolute difference with the RTD property value with reference to AT being no more than the moving area range parametric values of setting;
Allocation units, distribute for the private network AT determined for described determining unit the Radio Resource satisfied the demands.
7. device as claimed in claim 6, is characterized in that,
Described collecting unit, specifically for periodically gathering the described RTD property value with reference to AT and being in the RTD property value of each AT of same base station cell with described reference AT;
Described computing unit, for determining the absolute difference of each AT and the RTD property value with reference to AT collected in same period respectively.
8. device as claimed in claim 7, is characterized in that, also comprise:
Updating block, before absolute difference for the RTD property value of the reference AT that determines respectively to collect in same period at described computing unit and each AT, use the RTD property value of reference AT and the RTD property value of each AT that collect in the RTD property value of the RTD property value of reference the AT collected in current period and each AT renewal last cycle.
9. the device as described in claim 6,7 or 8, is characterized in that, described allocation units, specifically comprise:
Judgment sub-unit, remains for judging the Radio Resource whether assignable Radio Resource can meet private network AT demand, and exports judged result;
Distribute subelement, when the judged result that judgment sub-unit exports is for being, for private network AT distributes the Radio Resource satisfied the demands from the assignable Radio Resource of residue; When the judged result that judgment sub-unit exports is no, the wireless resource scheduling taken by the AT that the absolute difference with the RTD property value with reference to AT exceedes the moving area range parametric values of setting is to private network AT.
10. a base station control device, is characterized in that, comprises arbitrary described radio resource allocation apparatus based on code division multiple access access CDMA in claim 6 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010223565.8A CN102316585B (en) | 2010-07-07 | 2010-07-07 | CDMA (Code Division Multiple Access)-based wireless resource allocation method, device and equipment |
| PCT/CN2011/073739 WO2012003741A1 (en) | 2010-07-07 | 2011-05-06 | Method, device and equipment for allocating wireless resources based on code division multiple access |
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| CN201010223565.8A CN102316585B (en) | 2010-07-07 | 2010-07-07 | CDMA (Code Division Multiple Access)-based wireless resource allocation method, device and equipment |
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| CN1612638A (en) * | 2003-10-31 | 2005-05-04 | 三星电子株式会社 | Method for calculating a time delay introduced by a repeater in mobile communication network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101809935B (en) * | 2007-09-28 | 2014-09-03 | 富士通株式会社 | Method for allocating wireless resources in wireless communication system, and wireless terminal and wireless base station |
| US8514792B2 (en) * | 2008-06-13 | 2013-08-20 | Samsung Electronics Co., Ltd. | Mobile station, base station, and method for uplink service |
| CN101534476B (en) * | 2009-02-06 | 2011-06-22 | 北京交通大学 | Location update method of special GSM network of high-speed railway |
| CN101986748B (en) * | 2009-07-29 | 2015-05-20 | 中兴通讯股份有限公司 | Method and system for reporting measurement result as well as method and system for switching cells |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998027776A2 (en) * | 1996-12-17 | 1998-06-25 | Northern Telecom Limited | Method for hard handoff in a cdma cellular environment |
| CN1765140A (en) * | 2003-02-28 | 2006-04-26 | 艾利森电话股份有限公司 | Hard handoff target generation in a multi-frequency CDMA mobile network |
| CN1612638A (en) * | 2003-10-31 | 2005-05-04 | 三星电子株式会社 | Method for calculating a time delay introduced by a repeater in mobile communication network |
| CN1859784A (en) * | 2006-03-24 | 2006-11-08 | 华为技术有限公司 | Cell switching control method of high speed moving terminal |
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| WO2012003741A1 (en) | 2012-01-12 |
| CN102316585A (en) | 2012-01-11 |
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