CN1178419A - Method of and apparatus for pilot set maintenance - Google Patents
Method of and apparatus for pilot set maintenance Download PDFInfo
- Publication number
- CN1178419A CN1178419A CN97117587A CN97117587A CN1178419A CN 1178419 A CN1178419 A CN 1178419A CN 97117587 A CN97117587 A CN 97117587A CN 97117587 A CN97117587 A CN 97117587A CN 1178419 A CN1178419 A CN 1178419A
- Authority
- CN
- China
- Prior art keywords
- beacon
- neighbours
- candidate
- accurate
- accurate candidate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
An apparatus maintains a Pilot Set in a digital communication system that utilizes Code Division Multiple Access. The apparatus comprises a logic and control circuit for providing instructions to a searcher receiver. The searcher receiver, in response to the instructions, sequentially scans active pilots, then candidate pilots, and then pre-candidate pilots. The scan of the pre-candidate pilots continues until all but a predetermined number of pre-candidate pilots have been promoted or demoted. Then the searcher receiver alternately scans the predetermined number of pre-candidate pilots and the neighbor pilots. The searcher receiver terminates alternate scans of the predetermined number of pre-candidate pilots and the neighbor pilots when a one of the neighbor pilots is promoted, and resumes the scan of the pre-candidate pilots.
Description
The present invention relates generally to digital communicating field, relate more specifically at method and apparatus with maintenance beacon group in the digital communication system of code division multiple access.Though invention has wide applications, it is specially adapted to honeycomb or PCS Personal Communications System (PCS) radio communication device, hereinafter will specifically describe in that respect.
Tentative standard I S-95-A (IS-95) is adopted by Telecommunications Industry Association, to realize CDMA in cellular system.In cdma system, mobile radio station be distributed in the geographic area in any one or a plurality of communication of one group of base station.Each base station is launched the beacon channel signal that has same extended code but different code phase offset is arranged continuously.Phase deviation allows the beacon signal to distinguish mutually, so it allows the base station to be identified.After this, the beacon signal of base station abbreviates beacon as.The mobile station monitors beacon is also measured the beacon energy that receives.
When calling out, communicate by letter on forward traffic channel with mobile radio station in the base station.During calling out, mobile radio station must monitor and keep four groups of beacons (being collectively referred to as the beacon group)-working group, candidate set, neighbours' group and remaining set constantly.Working group is the beacon related with the forward traffic channel that is assigned to mobile radio station.Candidate set is to receive not in working group but by particular mobile station at present enough intensity to be arranged to indicate the related forward traffic channel can be by the beacon of demodulation successfully.Neighbours group be at present in working group or candidate set but be not the beacon of the candidate of possible handover.Remaining set is at all possible beacon except the beacon in working group, candidate set and neighbours' group in the present CDMA frequency appointment in present system.
When mobile radio station moved to another zone from the zone that is covered by a base station, mobile radio station was organized from neighbours and is promoted specific beacon to candidate set, and the specific beacon of candidate set is then risen to working group by the base station.Mobile radio station is organized the lifting of candidate set from neighbours by beacon intensity measuring message informing base station or group of base stations.The base station is by the lifting of handover instruction message notice mobile radio station from the candidate set to the working group.During calling out, the process of upgrading the beacon group continuously is called as " maintenance of beacon group ".
Judge traditional algorithm order as described below which beacon is thus lifted to candidate set the following step that reruns: 1) scanning all working beacon; 2) scan all candidate's beacons; 3) scanning one neighbours' beacon, or when whole neighbours' group was scanned, scanning one kept beacon.When neighbours' beacon or when keeping the energy of the measurement of beacon to be found on the specific thresholding T_ADD, beacon is thus lifted to candidate set.
The single energy measurement of beacon is very unreliable in the Rayleigh fading that occurs, and when the energy of neighbours' beacon was not higher than T_ADD, some neighbours or maintenance beacon may be raised.In order to compensate, the distortion of this algorithm is stipulated the 5th group, is called accurate candidate set.The purpose of accurate candidate set is to guarantee before being thus lifted to candidate set, and the energy of beacon is higher than T_ADD.
Accurate candidate set is scanned simultaneously with candidate set in above-mentioned order.When the energy of neighbours' beacon was found for the first time on thresholding T_ADD, neighbours' beacon was thus lifted to accurate candidate set rather than directly arrives candidate set.This accurate candidate's beacon of informing base station is not thus lifted to candidate set up to it from accurate candidate set.
Accurate candidate's beacon is judged by the method for simple state device can rise to candidate set.The beacon that rises to accurate candidate set begins in state 2.The energy that each accurate candidate's beacon (i.e. the beacon that has just promoted) is scanned and measures is higher than T_ADD, and the state of accurate candidate's beacon is increased.When accurate candidate's beacon is scanned when being lower than T_ADD with its energy of measurement, its state is reduced.When the state of correspondence reached 5, accurate candidate's beacon was thus lifted to candidate set.When the state of correspondence reached 0, accurate candidate's beacon was dropped to neighbours' group.
IS-95 regulation mobile radio station is answered the working group of scale support 6, neighbours' group of the candidate set of scale 5 and scale 20.These are the smallest group scales that must support.When several work beacons, candidate's beacon and accurate neighbours' beacon were in their groups separately, neighbours' beacon was not scanned more continually.For example, when having 3 work beacons and candidate's beacon and 20 neighbours' beacons, between the scanning of same neighbours' beacon, algorithm is greater than 80 scanning.When scanning 15 milliseconds, between the scanning of same neighbours' beacon, this causes is 1.2 seconds at every turn.This is unacceptable, because IS-95, the cdma mobile station performance specification, the regulation mobile radio station must be organized the acceptable beacon of lifting to candidate set from neighbours in no longer than 800 milliseconds.
Mobile radio station must judge promptly which neighbours' beacon will rise to candidate's beacon, to guarantee that the strongest beacon remains in the working group.For example, in vertiginous environment, when turning over the angle of high-lager building when mobile radio station, the work beacon can promptly be covered, and the energy of the measurement of neighbours' beacon can become a little less than very very strong.If mobile radio station can not rise to candidate set to new strong neighbours' beacon fast enough, that is, before the communication on the work beacon loses, so, call out " interruption ".This phenomenon is called as " changing beacon soon " problem.
The purpose of this invention is to provide the method and apparatus that the beacon group keeps, keep the beacon group with the method for promptly judging strong beacon and rising to candidate set.
The invention provides a kind of method that keeps the beacon group, the digital communication system that is used for code division multiple access, described beacon group comprises: neighbours' group of the accurate candidate set of the working group of work beacon, the candidate set of candidate's beacon, accurate candidate's beacon and neighbours' beacon, and described method comprises step:
Scan described work beacon;
Scan described candidate's beacon; With
Scanning described accurate candidate's beacon is thus lifted to described candidate set or drops to described neighbours' group up to all the accurate candidate's beacons except predetermined number.
The invention provides a kind of device that keeps the beacon group, the digital communication system that is used for code division multiple access, described beacon group comprises: neighbours' group of the accurate candidate set of the working group of work beacon, the candidate set of candidate's beacon, accurate candidate's beacon and neighbours' beacon, and described device comprises:
Logic and control circuit are used to provide instruction; With
Scanning receiver, respond described instruction, sequentially scan described work beacon, described candidate's beacon then, described then accurate candidate's beacon, the scanning of wherein said accurate candidate's beacon lasts till that all the accurate candidate's beacons except predetermined number are thus lifted to described candidate set or drop to described neighbours' group.
Advantage of the present invention is: in vertiginous environment, improve the method and apparatus of the performance of mobile radio station significantly.
Brief Description Of Drawings:
Fig. 1 describes the electric block diagram of radio communication device;
Fig. 2 describes the flow chart by the method for the beacon group maintenance of radio communication device operation.
The depicted in greater detail of preferred version
Here the method and apparatus of describing keeps the beacon group of radio communication device, as operates in the portable radiotelephone phone in the cdma system.In vertiginous environment, this method and apparatus is by promptly and reliably judging strong neighbours' beacon and rising to candidate set, significantly the performance of modifying device.
According to an aspect of the present invention, strong neighbours' beacon scans candidate set and sub organize and neighbours organize judgement of the accurate at least candidate set of scanning after the scanning candidate set by the scanning work group, the scanning work group after.The beacon of accurate candidate set and neighbours group is scanned up to initialization event and takes place, as because the beginning of the scanning of working group expires during the preset time.When initialization event took place, this method began and continues to take place up to next initialization event once more.
According to another aspect of the present invention, when more than one accurate candidate's beacon was in accurate candidate set, accurate candidate's beacon was thus lifted to candidate set or drops to neighbours' group up to the whole accurate candidate's beacon except by continuous sweep.Therefore, accurate candidate's beacon is given the priority that is better than neighbours' group, and the end decision that promotes accurate candidate's beacon like this can comparatively fast be made.
In accordance with a further aspect of the present invention, when single accurate candidate's beacon was in accurate candidate set, accurate candidate's beacon and continuous neighbours' beacon were alternately scanned, and the scanning of not inserting working group or candidate set.Therefore, be scanned than neighbours' beacon of in traditional technology, Duoing, and be scanned more continually.
Additional advantage of the present invention and novel performance will be described respectively hereinafter, shown in it and describe embodiment of the present invention.
For embodiment formed according to the present invention, at length set reference number.
Fig. 1 is the electric block diagram that can use the radio communication device of the method according to this invention, for example, and radio telephone 100.With other parts, this figure describes, and antenna 101 is used for 102 (only illustrating one) received signal and the signal of emission by radio telephone 100 generations from the base station.AFE (analog front end) 103 is handled the signal of reception and is provided these signals to analog-digital converter (ADC) 105.The signal of digitized reception is provided for and comprises one group of Rake (RAKE) receiver that refers to receiver 107 and at least one scanning receiver in parallel 109.The operation that refers to receiver 107 and scanning receiver 109 is controlled respectively by logic and control circuit 113.The output that refers to receiver 107 and scanning receiver 109 is provided for logic and control circuit 113 with further processing.Logic and control circuit 113 also provide data to radiating circuit passage 115, its deal with data and the data of processing are provided to D-A converter (DAC) 117.The analog signal of DAC117 output is provided for AFE (analog front end) 103, to be transmitted into base station 102 by antenna 101.An example of Rake receiver and radiating circuit passage 115 is the mobile station modems that can obtain from Qualcomm company.
Though logic and control circuit 113 are illustrated as the parts that separate from receiver, those skilled in the art will recognize that the part of logic and control circuit 113 can be in receiver.
When radio telephone 100 woke, antenna 101 was from work beacon beacon group of received.The beacon channel signal of the inswept beacon group of scanning receiver 109 energy is to judge the beacon channel strength of each.Scanning receiver 109 is judged the beacon channel strength by the multiple correlation process of the measured value that Ec/Io is provided with decibel (dB), and wherein Ec is that beacon energy measure and Io are the total power spectral density in the bandwidth that receives.
Logic and control circuit 113 can stored datas and the instruction software program of stipulating operation the method according to this invention.
Using method and operation according to the radio communication device of above forming and describing are described now with reference to Fig. 2, and Fig. 2 is the flow chart by the beacon group maintenance method 200 of radio communication device operation.
Based on the generation of initialization event, as expiring during the preset time or receiving the beacon group from the base station, method is initialised.At any point of run duration of the step of method, the generation of initialization event is with interrupt method and cause its heavily initialization.
Based on the initialization of method, the step of the work beacon of scanning all working group begins (step 203).In the time of beginning scanning work group, logic and control circuit 113 start timers to measure during the preset time and its expire (step 201).Selecting is enough to scanning work group continually with assurance to suitable vial reason during the preset time.Based on finishing of the scanning of working group, candidate's beacon of candidate set is scanned (step 205).Then, by the control (step 207) whether at least one accurate candidate's beacon decision method is arranged in accurate candidate set.When at least one accurate candidate's beacon is arranged, be made in the judgement (step 209) that whether has in the accurate candidate set more than accurate candidate's beacon in accurate candidate set.When in accurate candidate set, having more than accurate candidate's beacon, accurate candidate's beacon is scanned one by one continuously, and when the state table publicly price-reduction of any accurate candidate's beacon to neighbours' group or when rising to candidate set, the order of the accurate candidate's beacon of interrupt scanning does not promote and falls immediately and takes place.Accurate candidate's beacon is scanned up to the whole accurate candidate's beacon except and is raised or falls, and therefore, stays single accurate candidate's beacon (step 211) in accurate candidate set.
This is an importance of the present invention, because it guarantees will lag behind if having time between the continuous scanning of this stage of method at same accurate candidate's beacon.When in Rayleigh fading occurring, carrying out the continuous scanning of same beacon signal, allow to avoid the error in energy measurement time lag.Therefore since in energy measurement higher frequency and accuracy, being thus lifted to strong neighbours' beacon of accurate candidate set can be promptly and promote more reliably and fall.
The IS-95 regulation if can occur in the step 211 when beacon is added to candidate set, and radio telephone produces and send the beacon ionization meter report message of designate candidate group.The result is that the base station can send to specify and be different from the current handover instruction message that is stored in the working group of the group in the radio telephone.The reception of this handover instruction message can be considered to initialization event, causes the heavily initialization of method.
When single accurate candidate's beacon when scanning remains in the accurate candidate set after a plurality of accurate candidate's beacons, a plurality of neighbours' beacons that accurate candidate's beacon and neighbours organize are alternately scanned in continuous order.For example, when two neighbours' beacons, accurate candidate's beacon will be scanned, and then, first neighbours' beacon will be scanned, and then, accurate candidate's beacon will be scanned again.
This is an importance of the present invention because between the continuous energy measurement of single accurate candidate's beacon time lag be held.Further, the scanning again by each accurate candidate's beacon of omission work and candidate set and accurate candidate set between the scanning of each continuous neighbours' beacon can be scanned than neighbours' beacon of Duoing in traditional technology.
Scanning alternately will continue up to: (1) is when the measurement energy of one of neighbours' beacon during greater than T_ADD, it is thus lifted to accurate candidate set, (2) accurate candidate's beacons are thus lifted to candidate set or drop to neighbours' group, or (3) all neighbours' beacons are scanned (step 213).
Make the judgement whether one of neighbours' beacon is thus lifted to accurate candidate set, therefore, cause scan abort (step 215) alternately.When one of neighbours' beacon is raised, now, two accurate candidate's beacons are arranged in accurate candidate set.Because a plurality of accurate candidate's beacons are arranged, accurate candidate's beacon is scanned up to the whole accurate candidate's beacon except again and is raised or falls, and therefore, stays single accurate candidate's beacon (step 211) in accurate candidate set.
When one of neighbours' beacon is not raised, make the judgement whether one of accurate candidate's beacon is raised or falls, therefore, cause scan abort (step 217) alternately.When this accurate candidate's beacon is raised or falls, in accurate candidate set, there is not accurate candidate's beacon.Therefore, neighbours' beacon is scanned continuously up to one of neighbours' beacon and is thus lifted to accurate candidate set or all neighbours' beacons are scanned (step 219).
Example as the continuous sweep of neighbours' beacon after this accurate candidate's beacon is raised or falls is provided with three neighbours' beacons.Also establishing second neighbours' beacon just was scanned before accurate candidate's beacon is raised or falls.Next scanning is the 3rd neighbours' beacon, first neighbours' beacon then, and last then scanning will be second neighbours' beacon.At this point, all neighbours' beacons are scanned.
Yet before all neighbours' beacons were scanned, neighbours' beacon can be raised.Therefore, make the judgement whether one of neighbours' beacon is thus lifted to accurate candidate set, therefore cause the scan abort (step 221) of neighbours' beacon.When one of neighbours' beacon is raised, now, can alternately in the accurate candidate set of scanning accurate candidate's beacon arranged with neighbours' group.Therefore, neighbours' beacon of this accurate candidate's beacon and neighbours group is alternately scanned (step 213) with continuous order.Again, in step 213, the scanning of neighbours' beacon will begin at the neighbours' beacon after neighbours' beacon of scanning just.
When the scanning of neighbours' beacon is ended because all neighbours' beacons are scanned, there is not neighbours' beacon by force to being enough to lifting in this stage.Therefore, the residue beacon of remaining set is scanned (step 223), and makes this residue beacon and whether surpass the judgement that T_ADD is raised, (step 225) because of the energy of its measurement.The residue beacon is scanned in continuous order, the residue beacon after the residue beacon of scanning scanning just.
When residue beacon when not being raised, neighbours' beacon is scanned continuously up to one of neighbours' beacon again and is raised or all neighbours' beacons are scanned (step 219).When residue beacon when being raised, now, accurate candidate's beacon is arranged organizing in the accurate candidate set that is alternately scanned with neighbours.Therefore, neighbours' beacon of this accurate candidate's beacon and neighbours group is by alternately scanning (step 213).
Referring now to step 217, the 3rd condition can ending the scanning that accurate candidate's beacon and a plurality of neighbours' beacon replace is when all neighbours' beacons are scanned.In this situation, in the end neighbours' beacon is scanned and neighbours' beacon is not raised (step 215), also the accurate candidate's beacon of neither one is raised or falls (step 217) afterwards, and the residue beacon is scanned (step 227).
Then, make the judgement (step 229) whether the residue beacon is raised.When residue beacon when being raised, now, two accurate candidate's beacons are arranged in accurate candidate set, and accurate candidate's beacon is scanned again up to the whole accurate candidate's beacon except and is raised or falls (step 211).When the residue beacon is not raised, have only accurate candidate's beacon to exist, and therefore, the neighbours' beacon in this accurate candidate's beacon and the neighbours' group is alternately scanned (step 213) with continuous order.
Refer again to step 207, after the scanning candidate beacon, when not having accurate candidate's beacon of at least one accurate candidate set, neighbours' beacon scanned again continuously up to one of neighbours' beacon be raised or all neighbours' beacon be scanned (step 219).
At last,, refer again to step 209 for describing of Method Of Accomplishment 200, when accurate candidate's beacon of an accurate candidate set, neighbours' beacon of this accurate candidate's beacon and neighbours' group with continuous order by alternately scanning (step 213).
Summarize it, the embodiment of describing that constitutes according to the present invention provides the method for the scanning beacon group of order, to obtain the promoting advantage of strong beacon signal to candidate set reliably and promptly.Therefore, strong beacon signal is than more Zao in traditional technology and be reported to the base station more continually; In the method timely of the number of times that relaxes interrupt call in the environment that changes apace, working group can be updated.
Person of skill in the art will appreciate that, do not exceed scope of the present invention or spirit, in apparatus and method of the present invention, can make different distortion and improvement.For example, in step 211, can wish: scan accurate candidate's beacon and be raised or fall up to two rather than accurate candidate's beacon, because scanning receiver is when doing its scanning especially soon, the continuous scanning of same beacon can need the time delays of two scannings.Therefore, in step 213, the scanning that replaces will be first accurate candidate's beacon, second accurate candidate's beacon, neighbours' beacon then.Or the time delay that needs can remain in the accurate candidate set up to candidate's beacon surely by the accurate candidate's beacon of scanning and provide, and scans two rather than neighbours' beacon then.
Claims (10)
1, the method that keeps the beacon group, the digital communication system that is used for code division multiple access, described beacon group comprises: neighbours' group of the accurate candidate set of the working group of work beacon, the candidate set of candidate's beacon, accurate candidate's beacon and neighbours' beacon, and described method comprises step:
Scan described work beacon;
Scan described candidate's beacon; With
Scanning described accurate candidate's beacon is thus lifted to described candidate set or drops to described neighbours' group up to all the accurate candidate's beacons except predetermined number.
2, the method for claim 1 further comprises step: the accurate candidate's beacon and the described neighbours' beacon that alternately scan described predetermined number.
3, method as claimed in claim 2, accurate candidate's beacon of wherein said predetermined number and described neighbours' beacon are thus lifted to described accurate candidate set by mixed sweep up to one of described neighbours' beacon.
4, method as claimed in claim 3, wherein, when one of described neighbours' beacon was thus lifted to described accurate candidate set, the accurate candidate's beacon of described scanning was repeated up to the step that all the accurate candidate's beacons except predetermined number are thus lifted to described candidate set or drop to described neighbours' group.
5, method as claimed in claim 2, accurate candidate's beacon and described neighbours' beacon of wherein said predetermined number are alternately scanned, and are thus lifted to described candidate set or drop to described neighbours' group up to one of accurate candidate's beacon of described predetermined number.
6, method as claimed in claim 5, further comprise step: when one of accurate candidate's beacon of described predetermined number is thus lifted to described candidate set or drops to described neighbours when organizing, scan described neighbours' beacon, be thus lifted to described accurate candidate set or all described neighbours' beacons are scanned up to one of described neighbours' beacon.
7, method as claimed in claim 6 wherein, when one of described neighbours' beacon is raised, describedly alternately scans accurate candidate's beacon of described predetermined number and the step of described neighbours' beacon is repeated.
8, the device that keeps the beacon group is used for the digital communication system of code division multiple access, and described beacon group comprises: the accurate candidate set of the working group of work beacon, the candidate set of candidate's beacon, accurate candidate's beacon and the neighbours of neighbours' beacon organize, and described device comprises:
Logic and control circuit are used to provide instruction; With
Scanning receiver, respond described instruction, sequentially scan described work beacon, described candidate's beacon then, described then accurate candidate's beacon, the scanning of wherein said accurate candidate's beacon lasts till that all the accurate candidate's beacons except predetermined number are thus lifted to described candidate set or drop to described neighbours' group.
9, device as claimed in claim 8, wherein said scanning receiver alternately scan accurate candidate's beacon and described neighbours' beacon of described predetermined number.
10, device as claimed in claim 9, wherein, when one of described neighbours' beacon was thus lifted to described accurate candidate set, described scanning receiver was ended the accurate candidate's beacon of described predetermined number and the scanning that replaces of described neighbours' beacon, and restarts the scanning of described accurate candidate's beacon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97117587A CN1178419A (en) | 1996-09-06 | 1997-09-04 | Method of and apparatus for pilot set maintenance |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US709,432 | 1996-09-06 | ||
| CN97117587A CN1178419A (en) | 1996-09-06 | 1997-09-04 | Method of and apparatus for pilot set maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1178419A true CN1178419A (en) | 1998-04-08 |
Family
ID=5174504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97117587A Pending CN1178419A (en) | 1996-09-06 | 1997-09-04 | Method of and apparatus for pilot set maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1178419A (en) |
-
1997
- 1997-09-04 CN CN97117587A patent/CN1178419A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1100466C (en) | System, method, and wireless communication device for soft handoff | |
| CN1098608C (en) | Method of handing off and wireless communication device | |
| CN1098609C (en) | Method of handing off and wireless communication device | |
| CA2216225C (en) | System, method and apparatus for soft handoff | |
| CN1090881C (en) | Mobile station | |
| CN1153476C (en) | Method and apparatus for determining handover candidates in a communication system | |
| CN1102826C (en) | wireless communication system | |
| CN1176559C (en) | Method for setting shared channel in honeycomb mobile communicating system | |
| EP1977623B1 (en) | Method and apparatus relating to reselecting cells in a cellular wireless communications system | |
| CN1202080A (en) | Method and apparatus for digital control channel (DCCH) scanning and selection in cellular telecommunications network | |
| US6160799A (en) | Method of and apparatus for pilot set maintenance | |
| CN1717952A (en) | Inter-RAT cell reselection in a wireless communication network | |
| EP0966173B1 (en) | Handover determination in a mobile communication system | |
| CN1183011A (en) | Method and equipment for pilot frequency channel detection | |
| CN1248138A (en) | Method and device for free switching in cellular | |
| CN1193518C (en) | Mobile communication system | |
| CN1250342A (en) | Backward power control method in cellular system | |
| CN1092881C (en) | Method and apparatus for mitigating an orphan condition in a speed-spectrum communication system | |
| CN1286841A (en) | Handoff device and mehtod for mobile communication system | |
| CN1175691C (en) | Transmission Power Control Method in Mobile Communication System | |
| CN1234708A (en) | Switching control system, switching control method, and storage medium | |
| CN1268169C (en) | Switch method for multimode communication network | |
| CN1406086A (en) | Method for processing idle over-zone convertion between basestations for supporting different business | |
| FI105139B (en) | Controlled retry of call connection | |
| EP1492370A2 (en) | Antenna adjustment method, system and network element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |