CN102045808B - Method for guiding terminal to reside and access network equipment - Google Patents
Method for guiding terminal to reside and access network equipment Download PDFInfo
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- CN102045808B CN102045808B CN2010106033710A CN201010603371A CN102045808B CN 102045808 B CN102045808 B CN 102045808B CN 2010106033710 A CN2010106033710 A CN 2010106033710A CN 201010603371 A CN201010603371 A CN 201010603371A CN 102045808 B CN102045808 B CN 102045808B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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Abstract
The embodiment of the invention provides a method for guiding a terminal to reside and access network equipment. The method comprises the following steps of: searching signal qualities of pilot frequency and carrier frequency of a source network on a starting registration frequency point by a receiving terminal; if the signal qualities of the pilot frequency and the carrier frequency of the source network satisfy a switching condition, switching the terminal to the pilot frequency and the carrier frequency of the source network, and measuring forward link quality and backward link quality of the terminal on the pilot frequency and the carrier frequency of the source network; and if the forward link quality and the backward link quality of the terminal on the pilot frequency and the carrier frequency of the source network satisfy a redirection condition, redirecting the terminal to pilot frequency and carrier frequency of destination network to ensure the terminal resides on the pilot frequency and the carrier frequency of the destination network. The access network equipment comprises a receiving-transmitting module, a switching measurement module and a redirection module. The scheme provided in the embodiment of the invention can realize the reliable terminal access and residence.
Description
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to a kind of resident method of guiding terminal and access network equipment.
Background technology
At present, the business of down town and residence area, the popularity rate of mobile communication is very high, take office building and residential quarters as the building construction of representative, and the user is more vigorous for the demand of the mobile service of voice-and-data.Utilize the network coverage structure of macrocellular and microcellulor combination, have better adaptive capacity, can provide better use impression for the user.
CDMA20001xEV-DO is the evolution technology from 2G to 3G as CDMA20001X, before it/reverse rate, service quality (Quality Of Service, referred to as: QoS) security function, power system capacity have all obtained great lifting.Indoor covering system take microcellulor/milli honeycomb as representative can use this 3G network of CDMA20001xEV-DO to cover usually, and the outdoor cover system take macrocellular as representative can use this 2G network of CDMA20001x to cover usually.If indoor covering system and outdoor cover system adopt with frequently covering, can and switch frequently due to each other interference that to make user data service experience relatively poor, therefore, indoor covering system preferably adopts the alien frequencies covering with the outdoor cover system.Alien frequencies covers the mutual interference can effectively overcome indoor covering system and outdoor cover system, and the user can obtain the quality of well eating dishes without rice or wine, thereby greatly improves data service rate.
Dual-mode terminal be a kind of source network that both can be operated in the mode of operation work of source network, can be operated in again objective network with the terminal of the mode of operation work of objective network.For example not only can work under the CDMA20001x network, but also the terminal that can work under the CDMA20001xEV-DO network can be referred to as the 2G/3G dual-mode terminal.
When dual-mode terminal enters indoor covering system from the outdoor cover system, if wish access network, owing to adopting the alien frequencies scheme at indoor covering system, the co-channel interference that there is no outdoor base station, even therefore forward direction when received signal power (Rx) is low, also can guarantee good signal to noise ratio.And this moment, terminal tended to transmit signal power (Tx) deficiency occur due to stopping of building wall, before therefore can occurring/and reverse unbalanced problem.If before dual-mode terminal is redirected to/reverse unbalanced alien frequencies carrier frequency on, can cause the problems such as dual-mode terminal access failure or call drop, and be redirected the dual-mode terminal that unsuccessfully causes and catch the problems such as EV-DO thrashing.
Summary of the invention
The embodiment of the present invention provides a kind of resident method of guiding terminal and access network device, in order to evade front/terminal is guided when oppositely uneven resident in objective network, can be so that terminal be resident in objective network reliably.
On the one hand, the embodiment of the present invention provides a kind of guiding terminal resident method, and described terminal is in the common overlay area of source network and objective network, comprising:
The signal quality of the alien frequencies carrier frequency of the source network that receiving terminal searches on start registration frequency;
If the signal quality of the alien frequencies carrier frequency of described source network satisfies switching condition, described terminal is switched on the alien frequencies carrier frequency of described source network, and measure forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network;
If forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network satisfies the condition of being redirected, described terminal is redirected on the alien frequencies carrier frequency of objective network, so that described terminal is resident on the alien frequencies carrier frequency of described objective network.
On the other hand, the embodiment of the present invention also provides a kind of access network equipment, and the service of source network and objective network is provided, and comprising:
Transceiver module is used for receiving terminal and registers the signal quality of the alien frequencies carrier frequency of the source network that searches on frequency in start;
The switch test module, satisfy switching condition if be used for the signal quality of the alien frequencies carrier frequency of described source network, described terminal is switched on the alien frequencies carrier frequency of described source network, and measure forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network;
Redirection module, satisfy if be used for forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network the condition of being redirected, described terminal is redirected on the alien frequencies carrier frequency of objective network, so that described terminal is resident on the alien frequencies carrier frequency of described objective network.
The method that the guiding terminal of the embodiment of the present invention is resident and access network equipment, on the alien frequencies carrier frequency that terminal is switched to start registration frequency in the source network that signal quality satisfies switching condition, before measuring on the alien frequencies carrier frequency of source network/reverse link circuit quality, if front/reverse link circuit quality satisfies condition, just terminal is redirected on the alien frequencies carrier frequency of objective network residently, has effectively avoided when front/reverse link circuit quality does not satisfy condition, terminal being redirected on the alien frequencies carrier frequency of objective network.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method flow diagram that the guiding terminal that Fig. 1 provides for one embodiment of the invention is resident;
The method interaction diagrams that the guiding terminal that Fig. 2 provides for another embodiment of the present invention is resident;
The network distribution schematic diagram that Fig. 3 provides for another embodiment of the present invention;
The structural representation of the access network equipment that Fig. 4 provides for one embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
In the network environment that the present embodiment provides, there is simultaneously the network of two kinds of mode of operations, be referred to as respectively source network and objective network.There is the carrier frequency with start registration frequency point co-frequency in source network, and with the carrier frequency of start frequency alien frequencies.The method flow diagram that the guiding terminal that Fig. 1 provides for one embodiment of the invention is resident, as shown in Figure 1, the method comprises:
Step 101: the signal quality of the alien frequencies carrier frequency of the source network that the access network equipment receiving terminal searches on start registration frequency;
Wherein, need to prove, this access network device provides the service of source network and objective network simultaneously, and terminal is in the common overlay area of source network and objective network.Terminal is the multi-mode working terminal, this terminal in source network with the mode of operation work of source network, in objective network with the mode of operation work of objective network.For example, be operated in simultaneously the 2G/3G dual-mode terminal of CDMA20001x network and CDMA20001xEV-DO network.
Step 102: if the signal quality of the alien frequencies carrier frequency of the source network that receives satisfies switching condition, access network equipment switches to terminal on the alien frequencies carrier frequency of above-mentioned source network, and measures forward link quality and the reverse link circuit quality of this terminal on the alien frequencies carrier frequency of above-mentioned source network;
Wherein, above-mentioned switching can be direct-cut operation, and direct-cut operation refers in the base station of different frequency or the switching between coverage cell.To be that terminal is first temporary transient disconnect conversation to the process of this switching, on the channel that contacts with former base station, transmits the signaling of switching, and terminal is from the new frequency tuning of trend, contacts with new base station, sets up new channel, thereby complete the process of switching.Be exactly " first disconnection, rear switching " in simple terms.
Step 103: if forward link quality and the reverse link circuit quality of terminal on the alien frequencies carrier frequency of source network all satisfies the condition of being redirected, terminal is redirected on the alien frequencies carrier frequency of objective network, so that this terminal is resident on the alien frequencies carrier frequency of objective network.
The embodiment of the present invention provides a kind of guiding terminal resident method, on the alien frequencies carrier frequency that terminal is switched to start registration frequency in the source network that signal quality satisfies switching condition, before measuring on the alien frequencies carrier frequency of source network/reverse link circuit quality, if front/reverse link circuit quality satisfies condition, just terminal is redirected on the alien frequencies carrier frequency of objective network residently, has effectively avoided when front/reverse link circuit quality does not satisfy condition, terminal being redirected on the alien frequencies carrier frequency of objective network.
The method interaction diagrams that the guiding terminal that Fig. 2 provides for another embodiment of the present invention is resident.In the present embodiment, take source network as CDMA20001x, objective network is that CDMA20001xEV-DO is that example describes.With the application scenarios of the method be set as dual-mode terminal from outdoor enter indoor, room area and outdoor area all are coated with source network and objective network, the room area of source network and outdoor area adopt alien frequencies to cover, and objective network has omitted disposes indoor same frequency carrier frequency.The network distribution schematic diagram that the present embodiment as shown in Figure 3 provides, F1 are the same frequency carrier frequency that CDMA20001x belongs to outdoor area, and the same frequency that is in room area can be used as the pilot beacon guiding terminal and switches to F2 from F1.F2 is the alien frequencies carrier frequency that CDMA20001x belongs to room area, F3 is the alien frequencies carrier frequency that CDMA20001x EV-DO belongs to room area, has omitted the same frequency carrier frequency that CDMA 20001x EV-DO belongs to room area, has saved the beacon cost of EV-DO.As shown in Figure 2, the method comprises:
Step 201:1x/EV-DO dual mode data card terminal enters indoorly from outdoor, and start sends the start register request message to access network equipment on start registration frequency F1;
Step 202: access network equipment receives above-mentioned start register request message, sends enrollment response message to terminal, allows this accessing terminal to network, and works on its start registration frequency;
Step 203: terminal receives the enrollment response message that access network equipment sends, and initiates the 1x test call on start registration frequency, by the signal quality of the 1x alien frequencies carrier frequency F2 in the Other Frequency Search measuring chamber;
Wherein, sign 1x refers to use the CDMA2000 wireless technology of a pair of 1.25MHz radio channel traditionally.The 1x test call can comprise as enhanced variable rate encoding and decoding (Enhanced Variable RateCodec, referred to as: EVRC), perhaps test data service option (Test Data Service Option, referred to as: TDSO) or the multiple test call type such as loop response (Loop_ack), be not specifically limited herein.
Step 204: terminal is constantly measured the signal quality of 1x alien frequencies carrier frequency F2, and reports scout report to access network equipment;
Step 205: access network equipment judges whether the signal quality of 1x alien frequencies carrier frequency F2 satisfies switching condition;
If the signal quality of 1x alien frequencies carrier frequency F2 reaches default threshold value, namely 1x alien frequencies carrier frequency satisfies switching condition, execution in step 206;
If the signal quality of 1x alien frequencies carrier frequency F2 does not reach default threshold value, namely 1x alien frequencies carrier frequency does not satisfy switching condition, discharges the 1x test call.
Step 206: access network equipment switches to terminal on 1x alien frequencies carrier frequency F2;
Step 207: terminal is carried out test call at 1x alien frequencies carrier frequency F2;
Step 208: access network equipment test constantly terminal is at 1x alien frequencies carrier frequency F2 forward link quality and reverse link circuit quality;
If forward link quality and reverse link circuit quality satisfy the condition of being redirected, execution in step 209;
If the directed condition of the discontented lumping weight of forward link quality and reverse link circuit quality finishes.
Wherein, before/reverse link circuit quality can be by measuring chip energy/disturbance spectrum density (ChipEnergy/Other cell Interfere, referred to as: Ec/Io), frame error rate (Frame Error Rate, referred to as: FER), Packet Error Ratio (Packet Error Rate is referred to as PER), one or more in the information such as Rx/Tx, but can be not limited to these information.
Step 209: access network device is redirected to terminal on 1x alien frequencies carrier frequency F2, and discharges this 1x test call;
Wherein, because test call can not make terminal be stabilized on F2, so stable resident in order to make terminal realize on 1x alien frequencies carrier frequency F2, access network device will be redirected to terminal on 1x alien frequencies carrier frequency F2.
Step 210: terminal is resident on 1x alien frequencies carrier frequency F2, initiates registration request;
Described registration request can be based on the registration request of lane place, can also be based on the registration request of subnet etc.This registration request has different titles in different networks.
Step 211: access network equipment receives the registration request that terminal sends, send the redirect message of EV-DO network to terminal, terminal is redirected on indoor EV-DO alien frequencies carrier frequency F3, and discharges this EV-DO calling, terminal is completed resident on EV-DO alien frequencies carrier frequency F3.
Need to prove, although the present embodiment is only take source network as CDMA20001x, objective network is that CDMA20001xEV-DO is that example is illustrated, in fact source network is CDMA20001xEV-DO, objective network is in the situation of CDMA20001x, also can be resident with reference to the method guiding terminal that the embodiment of the present invention provides.
the embodiment of the present invention provides a kind of guiding terminal resident method, on the alien frequencies carrier frequency that terminal is switched to start registration frequency in the source network that signal quality satisfies switching condition, before measuring on the alien frequencies carrier frequency of source network/reverse link circuit quality, and determine whether terminal is redirected on the alien frequencies carrier frequency of objective network according to measurement result, so that this terminal can be resident on the alien frequencies carrier frequency of objective network, before effectively having avoided terminal is redirected to/problems such as the terminal access failure that causes on the alien frequencies carrier frequency of reverse unbalanced objective network or call drop.
The topology view of the access network equipment that Fig. 4 provides for one embodiment of the invention, as shown in Figure 4, this access network equipment comprises: transceiver module 401, switch test module 402 and redirection module 403.Wherein, transceiver module 401 is registered the signal quality of the alien frequencies carrier frequency of the source network that searches on frequency in start for receiving terminal; If the signal quality that switch test module 402 is used for the alien frequencies carrier frequency of source network satisfies switching condition, this terminal is switched on the alien frequencies carrier frequency of source network, and forward link quality and the reverse link circuit quality of measuring terminals on the alien frequencies carrier frequency of source network; Forward link quality and reverse link circuit quality on the alien frequencies carrier frequency of source network satisfies the condition of being redirected if redirection module 403 is used for terminal, terminal is redirected on the alien frequencies carrier frequency of objective network, so that this terminal is resident on the alien frequencies carrier frequency of objective network.
Under a kind of execution mode, this transceiver module 401 also is used for: the start register request message that receiving terminal sends on start registration frequency, and send enrollment response message to terminal, so that the signal quality of terminal alien frequencies carrier frequency of search source network on start registration frequency.
Under another kind of execution mode, this redirection module 403 also is used for: terminal is redirected to the alien frequencies carrier frequency of objective network so that this terminal is resident on the alien frequencies carrier frequency of objective network; Transceiver module 401 also is used for: the registration request that receiving terminal sends, and to the redirect message of terminal transmission objective network.
Wherein, source network is the CDMA20001x network, and objective network is the CDMA20001xEV-DO network; Perhaps, source network is the CDMA20001xEV-DO network, and objective network is the CDMA20001x network.
The embodiment of the present invention provides a kind of access network equipment, on the alien frequencies carrier frequency that terminal is switched to start registration frequency in the source network that signal quality satisfies switching condition, before measuring on the alien frequencies carrier frequency of source network/reverse link circuit quality, if front/reverse link circuit quality satisfies condition, just terminal is redirected on the alien frequencies carrier frequency of objective network residently, has effectively avoided when front/reverse link circuit quality does not satisfy condition, terminal being redirected on the alien frequencies carrier frequency of objective network.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be completed by the hardware that program command is correlated with, aforesaid program can be stored in a computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Device embodiment described above is only schematic, wherein the unit as the separating component explanation can or can not be also physically to separate, the parts that show as the unit can be or can not be also physical locations, namely can be positioned at a place, perhaps also can be distributed at least two network element.Can select according to the actual needs wherein some or all of module to realize the purpose of the present embodiment scheme.Those of ordinary skills namely can understand and implement in the situation that do not pay performing creative labour.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. method that guiding terminal is resident, described terminal is in the common overlay area of source network and objective network, it is characterized in that, comprising:
The signal quality of the alien frequencies carrier frequency of the source network that receiving terminal searches on start registration frequency;
If the signal quality of the alien frequencies carrier frequency of described source network satisfies switching condition, described terminal is switched on the alien frequencies carrier frequency of described source network, and measure forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network;
If forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network satisfies the condition of being redirected, described terminal is redirected on the alien frequencies carrier frequency of described source network, so that described terminal is resident on the alien frequencies carrier frequency of described source network;
Receive the registration request that described terminal sends, send the redirect message of objective network to described terminal, described terminal is redirected on the alien frequencies carrier frequency of objective network, so that described terminal is resident on the alien frequencies carrier frequency of described objective network.
2. the resident method of guiding terminal according to claim 1, it is characterized in that, described terminal is the multi-mode working terminal, in described source network with the mode of operation work of described source network, in described objective network with the mode of operation work of described objective network.
3. the resident method of guiding terminal according to claim 1 and 2, is characterized in that, described receiving terminal is before the signal quality of the alien frequencies carrier frequency of the source network that searches on start registration frequency, and described method also comprises:
The start register request message that receiving terminal sends on described start registration frequency, and send enrollment response message to described terminal, so that the signal quality of described terminal alien frequencies carrier frequency of the described source network of search on described start registration frequency.
4. the resident method of guiding terminal according to claim 1 and 2 is characterized in that:
Described source network is the CDMA20001x network, and described objective network is the CDMA20001xEV-DO network; Perhaps,
Described source network is the CDMA20001xEV-DO network, and described objective network is the CDMA20001x network.
5. an access network equipment, provide the service of source network and objective network, it is characterized in that, comprising:
Transceiver module is used for receiving terminal and registers the signal quality of the alien frequencies carrier frequency of the source network that searches on frequency in start, and receives the registration request that described terminal sends, and sends the redirect message of objective network to described terminal;
The switch test module, satisfy switching condition if be used for the signal quality of the alien frequencies carrier frequency of described source network, described terminal is switched on the alien frequencies carrier frequency of described source network, and measure forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network;
Redirection module, satisfy if be used for forward link quality and the reverse link circuit quality of described terminal on the alien frequencies carrier frequency of described source network the condition of being redirected, described terminal is redirected on the alien frequencies carrier frequency of described source network, so that described terminal is resident on the alien frequencies carrier frequency of described source network, and described terminal is redirected on the alien frequencies carrier frequency of objective network, so that described terminal is resident on the alien frequencies carrier frequency of described objective network.
6. access network equipment according to claim 5, it is characterized in that, described transceiver module also is used for: the start register request message that receiving terminal sends on described start registration frequency, and send enrollment response message to described terminal, so that the signal quality of described terminal alien frequencies carrier frequency of the described source network of search on described start registration frequency.
7. access network equipment according to claim 5 is characterized in that:
Described source network is the CDMA20001x network, and described objective network is the CDMA20001xEV-DO network; Perhaps,
Described source network is the CDMA20001xEV-DO network, and described objective network is the CDMA20001x network.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106033710A CN102045808B (en) | 2010-12-23 | 2010-12-23 | Method for guiding terminal to reside and access network equipment |
| PCT/CN2011/081467 WO2012083758A1 (en) | 2010-12-23 | 2011-10-28 | Method for guiding terminal residence and access network device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106033710A CN102045808B (en) | 2010-12-23 | 2010-12-23 | Method for guiding terminal to reside and access network equipment |
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| CN102045808A CN102045808A (en) | 2011-05-04 |
| CN102045808B true CN102045808B (en) | 2013-06-26 |
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| CN2010106033710A Active CN102045808B (en) | 2010-12-23 | 2010-12-23 | Method for guiding terminal to reside and access network equipment |
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| CN102045808B (en) * | 2010-12-23 | 2013-06-26 | 华为技术有限公司 | Method for guiding terminal to reside and access network equipment |
| CN102612105B (en) * | 2012-03-23 | 2018-01-09 | 中兴通讯股份有限公司 | A kind of method for avoiding 1X DO carrier waves from mutually turning frontier district switching call drop |
| CN103384376B (en) * | 2012-05-04 | 2016-12-14 | 华为技术有限公司 | Link covering problem determines method, device and system |
| CN103391572A (en) * | 2012-05-09 | 2013-11-13 | 中兴通讯股份有限公司 | LTE adjacent cell information learning method of UMTS network, user equipment and RNC |
| CN107659894B (en) * | 2017-11-08 | 2020-04-10 | 武汉邮电科学研究院有限公司 | 4G positioning method and device for reducing public network interference |
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| US5548812A (en) * | 1994-07-21 | 1996-08-20 | Qualcomm Incorporated | Method and apparatus for balancing the forward link handoff boundary to the reverse link handoff boundary in a cellular communication system |
| GB9906005D0 (en) * | 1999-03-17 | 1999-05-12 | Motorola Ltd | A subscriber unit and method of cell selection for a cellular communication system |
| US20040047312A1 (en) * | 2002-04-29 | 2004-03-11 | Peter Muszynski | Method and apparatus for UL interference avoidance by DL measurements and IFHO |
| CN100334891C (en) * | 2003-08-04 | 2007-08-29 | 华为技术有限公司 | Method for realizing business reorientation |
| CN100505939C (en) * | 2003-09-17 | 2009-06-24 | 华为技术有限公司 | Realization method and device for controlling load balance in communication system |
| CN100493254C (en) * | 2004-06-18 | 2009-05-27 | 华为技术有限公司 | Heterofrequency blind switch-over method in WCDMA system |
| CN100364359C (en) * | 2004-09-29 | 2008-01-23 | 华为技术有限公司 | CDMA system terminal switching method |
| US8295827B2 (en) * | 2007-12-20 | 2012-10-23 | Centurylink Intellectual Property Llc | System and method for establishing optimal parameters for performing seamless call transfer between cordless and wireless modes |
| US8477737B2 (en) * | 2008-03-26 | 2013-07-02 | Alcatel Lucent | System and method to improve uplink coverage in multi-carrier systems |
| CN101801032B (en) * | 2009-12-31 | 2014-03-19 | 中兴通讯股份有限公司 | Indoor access method and communication system |
| CN102045808B (en) * | 2010-12-23 | 2013-06-26 | 华为技术有限公司 | Method for guiding terminal to reside and access network equipment |
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| WO2012083758A1 (en) | 2012-06-28 |
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