CN1224318A - Cellular networks with spare base and satellite stations - Google Patents
Cellular networks with spare base and satellite stations Download PDFInfo
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- CN1224318A CN1224318A CN 98124557 CN98124557A CN1224318A CN 1224318 A CN1224318 A CN 1224318A CN 98124557 CN98124557 CN 98124557 CN 98124557 A CN98124557 A CN 98124557A CN 1224318 A CN1224318 A CN 1224318A
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Abstract
A cellular network includes a control station and a network of base stations installed one per cell with which one or more mobile stations can communicate as they roam through a cell. Redundantly deployed spare base stations are introduced along with the primary base station at a central area of each cell. The redundantly deployed spare base stations handle new calls when the associated primary base station is overloaded, participate in retransmission of data lost due to degraded channel conditions and congestion in the network, and assist in handoffs. Primary and spare satellite stations are deployed in regions marked by hills or valleys to augment the communicative capabilities of the primary and spare base stations.
Description
The present invention relates to improve the performance and the reliability of cellular network by introducing spatial redundancies selectively therein.
Each sub-district of cell phone system comprises and utilizes required radio frequency (RF) signal strength signal intensity serving base station to be provided for all mobile radio stations in the peripheral cell of base station, base station in each sub-district has the radio communication channel of a fixed qty, and it can give the calling of just carrying out with these channel allocation in that sub-district.Mobile radio station usually with the base station communication that is arranged in the sub-district, wherein mobile radio station is positioned one of these radio communication channels.
Each sub-district covers whole geographic service area, but covering is incomplete and neighbor cell is overlapping and the formation handover area.According to conventional practice, when mobile radio station is crossed the border of current area and moved into another sub-district, must set up and be positioned at the communication path of the new base station of new sub-district when sending information.If radio communication channel can not obtain in new sub-district and mobile radio station can not obtain the new channel in new sub-district before it is crossed the border and moves into new sub-district fully and abandon channel in its old sub-district, the handover fault then occurs and interrupt ongoing calling.The probability of handover fault, promptly ongoing mobile calls owing to can not distribute radio communication channel and be compelled to the main standard that interrupt probability is an evaluation beehive network system quality during handover in new sub-district to it.Therefore, it is desirable in any beehive network system the handover probability of malfunction being minimized.
In order to make handover probability of malfunction minimum, effectively mobile cellular network should determine to distribute how best available wireless communication channel group limited in the sub-district to give new calling of starting in this sub-district and the handover that moves into this sub-district from neighbor cell continuously.This task is arranged in the base station of sub-district can not handle all new callings of starting this sub-district and the obstruction that moves into the handover of this sub-district from neighbor cell.If be positioned at this new sub-district and new therewith relevant base station, sub-district with mobile radio station is sent to the alarm preferably that enters new sub-district soon if there is better method to handle the overload of the base station of excessively communicating by letter with mobile radio station, then the cellular network state will be improved, and the probability minimum of handover fault and transmission error can be made basically.
By in mobile cellular network, adopting spatial redundancies, make transmission error and handover fault minimum basically according to the principle of the invention.Dominant base in cellular network on each center of housing estate zone adopts the standby base station of redundant arrangement.The standby base station of redundant arrangement is handled new calling, is participated in owing to the channel condition that worsens and the repeating transmission and the assisted hand-off of the congested data of losing in the network when relevant dominant base overload.
Satellite station be deployed in some with massif or mountain valley be the zone of feature with compensation because the communication capacity of the decline signal strength signal intensity of losing and expansion dominant base and standby base station.Several sub-districts of such zone energy spanning network.Satellite station stops " sight line " interruption between base station and the mobile radio station when mobile radio station is walked around massif or passed through the mountain valley, this reduces the possibility of communication " interruption ".
In illustrated embodiment of the present invention, cellular network comprises the subzone network that control station and one or more mobile radio station can pass through.The operation of control station control cellular network and subzone network is provided and public switch telephone network between communication path.Be arranged in the mobile station communicate that each sub-district of subzone network and the dominant base relevant with each sub-district pass through many radio communication channels and control station and relevant sub-district.In each sub-district its sub-district of standby base station monitoring of dominant base arrangement and neighbor cell and can with one or more mobile station communicates of in subzone network, roaming.It is in the zone of feature that main satellite station and the backup satellite station that remains for main satellite station fault or overload in advance are deployed in the rugged region to cause owing to massif, skyscraper etc. of crossing over many sub-districts, with the communication capacity of increase cellular network and make cellular network firmer.Main satellite station and backup satellite station all are exclusively used in the sub-district that monitors in its overlay area.When one or more mobile radio stations passed through subzone network, the base station of institute's arrangement and satellite station generated report, and control station is determined the position and the speed of the mobile radio station roamed in subzone network according to these reports.The specific mobile radio station that control station can determine just to carry out the calling relevant with that specific mobile radio station will stride across the border between first sub-district and second sub-district, if and the dominant base of determining to be arranged in second sub-district is owing to reasons such as fault, the overload overload that will become, the distribution of calling out can change gives the standby base station that is arranged in second sub-district, and does not distribute to dominant base.The distribution of calling out can be changed into another later station from standby base station subsequently.Base station and satellite station continue the monitored cells activity, their result are reported to control station and sends imminent handover alarm.
When another mobile radio station when to enter with rugged region be feature regional, this incident can be utilized signal strength signal intensity and other data representations, and control station is handed over to the main satellite station that is deployed in this zone with the calling relevant with another mobile radio station from dominant base.The backup satellite station that utilization is deployed in this zone makes cellular network more sturdy and durable as the backup of main satellite station.
Fig. 1 represents to comprise the cellular network of control station and subzone network, and each sub-district has dominant base and the standby base station that is deployed on its central area;
Fig. 2 represents to comprise the cellular network of control station and subzone network, and wherein the sub-district has the monitored cells activity and their result reported to the base station and the satellite station of control station;
Fig. 3 is illustrated in the memory in the control station shown in Figure 2 after the sub-district activity of the first order;
Fig. 4 is the flow chart of the control program that moves in control station shown in Figure 2;
Fig. 5 is illustrated in partial sub-district activity memory shown in Figure 2 afterwards;
Fig. 6 is illustrated in memory shown in Figure 2 after the sub-district activity of the third level; With
Fig. 7 is illustrated in memory shown in Figure 2 after the sub-district activity of the fourth stage.
In order to understand the present invention and other and other purpose, advantage and ability better, consult following open and accompanying drawing.Be simplified illustration, illustrated embodiment of the present invention is expressed as and comprises each functional block.The function that these pieces are represented can utilize hardware or the shared or special-purpose hardware that includes but not limited to the energy executive software to provide.Illustrated embodiment can comprise digital signal processor (DSP) hardware, be used to store the operation of being discussed below carrying out software read-only memory (ROM) and be used to store DSP result's random-access memory (ram).Also can provide ultra-large integrated (VLSI) hardware embodiment and with the conventional VLSI circuit of general dsp combination of circuits.
By on each center of housing estate zone in cellular network, redundant ground standby base station and dominant base pairing and the main satellite station that matches by arrangement on the strategic location of whole cellular network and backup satellite station being made transmission error and handover fault minimum basically.In example cell network shown in Figure 1, each sub-district 10 comprises dominant base 12 and the standby base station 14 that is positioned on the center of housing estate zone.Each dominant base and standby base station are equipped with omnidirectional antenna so that the covering of sub-district activity in that sub-district and the neighbor cell to be provided.Standby base station and dominant base are placed on the demand that center of housing estate reduces the ground wiring of other main control station.
Standby base station dominant base maybe might with become when overload handle new call out, participate in because the repeating transmission of the data that the channel condition of deterioration and network congestion are lost and with or passive or active mode assisted hand-off.Each standby base station can " be listened attentively to " and the undisturbedly activity in the monitoring neighbor cells.When moving into new sub-district owing to mobile radio station when the handover mistake occurring, current dominant base does not transmit signaling and gives new dominant base, and standby base station provides continual information transfer service; And subsequently, when mobile radio station was fully in new sub-district, the dominant base relevant with new sub-district can be given with control transformation in this standby base station later on.
When standby base station operation was in passive mode, it utilized its global antenna " to listen attentively to ", undisturbedly monitor in its overlay area movable in all sub-districts and with the present load notice control station of neighbor cell.In case want help, standby station just comes into operation, thereby performance fault-tolerant and that improve is provided.
Referring to Fig. 1, the calling in control station 16 monitoring networks, definite probability of crossing with predict traffic patterns and cell boarder also send the warning of the resource requirement of relevant expection.If if in dominant base, break down or the handover buffer of dominant base surpass predetermined threshold, then standby base station will be as addition of base station to support new calling.
The transmission that causes owing to massif 18 or high-lager building hinders any hole (hole) in covering, the sub-district that causes and utilizes the satellite station that introduces selectively in whole cellular network topology to fill.Referring to Fig. 1, satellite station is deployed in the troublesome zone with backup satellite station 22 paired modes with main satellite station 20.The principle of the invention can be applicable to simulation, numeral and the PCS cellular network of speech and data.
Referring to Fig. 2, comprise subzone network 26 and control station 28 according to the exemplary mobile cellular network of the specific embodiment of the invention.Subzone network 26 in this exemplary embodiment comprises the first sub-district C1, the second sub-district C2, the 3rd sub-district C3, the 4th sub-district C4, the 5th sub-district C5, the 6th sub-district C6 and seven cell C7, the first sub-district C1 comprises the first dominant base BS1 and the first standby base station SS1, the second sub-district C2 comprises the second dominant base BS2 and the second standby base station SS2, the 3rd sub-district C3 comprises the 3rd dominant base BS3 and the 3rd standby base station SS3, the 4th sub-district C4 comprises the 4th dominant base BS4 and the 4th standby base station SS4, the 5th sub-district C5 comprises the 5th dominant base BS5 and the 5th standby base station SS5, the 6th sub-district C6 comprises the 6th dominant base BS6 and the 6th standby base station SS6, and seven cell C7 comprises the 7th dominant base BS7 and the 7th standby base station SS7.
Though standby base station of each sub-district arrangement in the preferred embodiment of the present invention, the spatial redundancies that adopts in cellular network can be adjusted according to the present invention.Each sub-district can arrangement less than 1 standby base station, promptly can standby base station of arrangement in comprising the zone of a plurality of subzone networks.For example, cellular network can comprise be deployed in 7 sub-districts hexgonal structure in the middle of such as the single standby base station that is arranged among the 5th sub-district C5 shown in Figure 2.The redundancy cost saving that this is lower, but more unreliable.If give standby base station of seven sub-district arrangements (for example) so this standby base station is deployed in the middle of the hexgonal structure, then each standby base station should have higher transmitting power and sensitiveer receiver in case " supervision " than large coverage.
In the special rugged country with many massifs and mountain valley, communicating by letter between mobile radio station and the base station hindered often and worsened, and causes interrupting and stopping.The present invention is the satellite station of the redundant pairing of arrangement on the other hand, helps to stop such communication disruption.In whole cellular network topology, introduce selectively satellite station to fill because the transmission that massif 30 or high-lager building cause hinders any hole in the sub-district covering that causes, at same position with paired form arrangement satellite station of main satellite station and backup satellite station to avoid excessive cabling requirement.In such pairing, the main P-SAT of satellite station enlarges the communication capacity of dominant base and standby base station and carries out arrangement usually to cover several sub-districts.Backup satellite station S-SAT is deployed in this zone as the backup of the main P-SAT of satellite station.
By example and be not restrictive example, Fig. 3 schematically describes BS1 handover buffer portion, SS1 handover buffer portion, BS2 handover buffer portion, SS2 handover buffer portion, P-SAT handover buffer portion and S-SAT handover buffer portion in the memory 36 so that describe this illustrated embodiment of the present invention.44 expressions of distributing buffer device are distributed to specific master or standby base station according to the described specific mobile radio station of this specific embodiment of the present invention is current, or distribute to any satellite station.Each handover buffer portion (being used for BS1, SS1, BS2, SS2, P-SAT and S-SAT) shown in Figure 3 represents that how many mobile radio stations distribute to the current record of certain base station or satellite station.Each handover buffer portion shown in Figure 3 is according to control program 42 storage and new data more, and each buffer in the memory 36 is used to monitor and the data of storing relevant one or more mobile radio stations.The label of its one or more mobile radio station of communicating by letter with it of each buffer stores (for example, M1, M2 ... Deng), and the signal level and the bit error rate of storing each mobile radio station in one or more mobile radio stations, as shown in Figure 3.
Referring to Fig. 2, when reporting to control station 28, by control station 28 control cellular networks in base station and satellite station monitored cells activity and with its result.According to example shown in Figure 2, three mobile radio stations just move in 7 subzone networks 26.These three mobile radio stations comprise the first mobile radio station M1, the second mobile radio station M2 and the 3rd mobile radio station M3.Mobile radio station M1 and mobile radio station M2 are illustrated among the first sub-district C1, and the 3rd mobile radio station M3 is illustrated among the second sub-district C2.
As shown in Figure 3, mobile radio station M1 communicates by letter with the first dominant base BS1, the first standby base station SS1, the second dominant base BS2 and the second standby base station SS2.Mobile radio station M2 communicates by letter with the second standby base station SS2 with the first dominant base BS1, the first standby base station SS1, and mobile radio station M3 communicates by letter with the second standby base station SS2 with the second dominant base BS2.
Distributing buffer device 44 expression mobile radio station M1 shown in Figure 3 distribute to dominant base BS1.Mobile radio station M2 distributes to dominant base BS1, shown in distributing buffer device 44.Mobile radio station M3 distributes to dominant base BS2.
In Fig. 3, buffer portion BS1 represents dominant base BS1 " OK " (that is, it does not have fault or overload).Buffer portion BS1 represents that also two mobile radio stations distribute to dominant base BS1 at present.Buffer portion SS1 represents that in Fig. 3 standby base station SS1 is that OK (it does not have fault or overload) and zero mobile radio station are distributed to standby base station SS1 at present.Buffer portion BS2 represents that in Fig. 3 dominant base BS2 OK and a mobile radio station distribute to dominant base BS2 at present.Buffer portion SS2 represents that present OK of standby base station SS2 and zero mobile radio station distribute to standby base station SS2 at present.Buffer portion P-SAT represents that main P-SAT OK of satellite station and zero mobile radio station distribute to the main P-SAT of satellite station at present.Buffer portion S-SAT represents that backup satellite station S-SAT OK and zero mobile radio station distribute to backup satellite station S-SAT at present.
Referring to Fig. 2, processor 34 operations in the control station 28 are stored in the control program 42 in the memory 36.Processor 34 passes in and out the data of control stations 28 by 32 controls of I/O adapter on communication line 48 and communication line 50.Fig. 4 is the flow chart of the control program 42 of operation in control station 28.
Referring to Fig. 4, control program 42 comprises one group of instruction, when carrying out this group instruction by processor 34, make control station 28 carry out continuously below series of steps and repeating those steps according to 42 operating periods of control program.Sub-district in base station and satellite station monitored cells network 26 movable and by the communication line 48 that is coupled to I/O adapter 32 send report to control station 28 in, control station 28 monitors the calling in the cellular network in step 54.Control station 28 receives the report of relevant business load in step 56.Control station 28 receives the report of normal mobile handover in step 58.In step 60 according to the position and the speed of signal level and Bit Error Rate Computation mobile radio station.In step 62, calculate the probability that cell boarder is crossed.The call business pattern looks ahead in step 64.If dominant base has fault, then in step 66, give standby base station with call distribution.If dominant base handover buffer maybe might transship, in step 68, give standby base station with call distribution.If mobile radio station enters the rugged region by the service of main satellite station, in step 70, mobile radio station distributed to main satellite station.If main satellite station has fault maybe will become overload, in step 72, mobile radio station distributed to the backup satellite station.Base station and satellite station continue to report to control station 28, and control station continues to monitor the calling in the cellular network in step 74, thereby according to control program 42 repeating steps order.
Referring to Fig. 3, the buffer portion of dominant base BS1 represents that dominant base BS1 just communicates by letter with mobile radio station M2 with mobile radio station M1.The buffer portion of standby base station SS1 represents that standby base station SS1 just communicates by letter with mobile radio station M2 with mobile radio station M1.The buffer portion of dominant base BS2 represents that dominant base BS2 just communicates by letter with mobile radio station M3 with mobile radio station M1.The buffer portion of standby base station SS2 represents that standby base station SS2 just communicates by letter with mobile radio station M3 with mobile radio station M1, mobile radio station M2.The buffer portion of the main P-SAT of satellite station represent the main P-SAT of satellite station not with any one mobile station communicate, the buffer portion of backup satellite station S-SAT represent backup satellite station S-SAT not with any one mobile station communicate.Distributing buffer device 44 expression mobile radio station M1 distribute to dominant base BS1, and mobile radio station M2 distributes to dominant base BS1 and mobile radio station M3 distributes to dominant base BS2.
A benefit by spatial redundancy provided by the invention is: when mobile radio station was crossed the border of minizone, handover can be handled in standby base station.And when dominant base had fault, main communication of being carried out with mobile radio station can be taken in standby base station.For example, if dominant base BS1 becomes overload when handling mobile radio station M2, control station 28 can distribute mobile radio station M2 to give standby base station SS1.If dominant base BS2 breaks down when the first mobile radio station M1 crosses between the first sub-district C1 and the second sub-district C2 border, control station 28 for example can distribute the first mobile radio station M1 to give the standby base station SS2 that substitutes dominant base BS2.
Referring to Fig. 5, mobile radio station M2 communicates by letter with standby base station SS2 with dominant base BS1, standby base station SS1.The buffer portion of standby base station SS1 represents that standby base station SS1 just communicates by letter with mobile radio station M2.The buffer portion of standby base station SS2 represents that standby base station SS2 just communicates by letter with mobile radio station M2.The buffer portion of dominant base BS1 represents that dominant base BS1 becomes overload.According to relative signal intensity and the bit error rate that standby base station SS1 and standby base station SS2 communicate by letter with mobile radio station M2, control station 28 distributes mobile radio station M2 to give standby base station SS1.
Referring to Fig. 5, distributing buffer device 44 expression control stations 28 distribute mobile radio station M2 to give standby base station SS1 because dominant base BS1 becomes overload.The buffer portion of standby base station SS1 is represented on (comparing with Fig. 3) current quantity allotted from zero to 1 increase to respond the mobile radio station M2 that has distributed to standby base station SS1 now.And the buffer portion of dominant base BS1 represents that the mobile radio station quantity of the current distribution of (comparing with Fig. 3) dominant base BS1 is reduced to 1 from 2.
Referring to Fig. 6, the buffer portion of dominant base BS2 represents that dominant base BS2 has fault.Because dominant base BS2 has fault, so when mobile radio station M1 crossed between the first sub-district C1 and the second sub-district C2 border as shown in Figure 2 and enters the second sub-district C2, control station 28 distributed the first mobile radio station M1 to standby base station SS2 and do not distribute to dominant base BS2.When dominant base BS2 had fault, control station 28 was distributed to standby base station SS2 with mobile radio station M3 from dominant base BS2.
Referring to Fig. 6, distributing buffer device 44 expression control stations 28 are owing to the fault of dominant base BS2 has been distributed to mobile radio station M1 standby base station SS2 and mobile radio station M3 is distributed to standby base station SS2.The buffer portion of standby base station SS2 represents on (comparing with Fig. 5) current quantity allotted that from 1 to 3 increase is to respond mobile radio station M1 and the mobile radio station M3 that has distributed to standby base station SS2 now.The buffer portion of dominant base BS2 is represented to be reduced to 0 from 1 on the current quantity allotted of (comparing with Fig. 5) dominant base BS2.
The arrangement that spreads all over the standby base station of subzone network 26 helps to guarantee and constant the communicating by letter of mobile radio station.In case dominant base has fault, the gap can be picked up in standby base station, so that mobile radio station still can be communicated by letter with PSTN40.Owing to maybe might becoming when overload with excessively the communicate by letter overload that becomes of mobile radio station, control with one or more mobile station communicates can be born to stop the overload of dominant base in the standby base station of redundant arrangement at dominant base.Control station 28 execution continuous monitorings are handled with the fault that detects upcoming handover, dominant base and the overload of dominant base, so that according to principle of the invention managing cellular network.
Move on to the back of the massif 30 shown in the sub-district C2 of Fig. 2 as mobile radio station M3, communicating by letter between mobile radio station M3 and the standby base station SS2 hindered by massif 30 and stoped, and control station 28 is by feeling this situation such as signal level comparison and/or bit error rate and according to the Position And Velocity of mobile radio station M3.Referring to Fig. 7, for responding this situation, the distribution of mobile radio station M3 changed to be exclusively used in from standby base station SS2 cover to the main P-SAT of satellite station of small part by sub-district C2, sub-district C4 and the defined zone of C5, sub-district.
Referring to Fig. 7, mobile radio station M3 communicates by letter with backup satellite station S-SAT with the main P-SAT of satellite station, and P-SAT is the zone of feature with the paired arrangement of S-SAT to cover with the rugged topography.The buffer portion of the main P-SAT of satellite station represents that the main P-SAT of satellite station communicates by letter with mobile radio station M3.The buffer portion of backup satellite station S-SAT represents that backup satellite station S-SAT communicates by letter with mobile radio station M3.Distributing buffer device 44 expression mobile radio station M3 are because " sight line " that it moves on to the massif back and exceeds standby base station SS2 distributed to the main P-SAT of satellite station.An advantage provided by the invention is: if the main P-SAT of satellite station has fault, then control station 28 can be changed into the distribution of mobile radio station M3 the backup satellite station S-SAT of redundant arrangement, to keep and the communicating by letter of PSTN 40.
To recognize from aforementioned: introduce standby base station at cellular network rightly and can retransmit the packet lost owing to network congestion or high bit-error, when dominant base transships, handle new the calling and assisted hand-off, and the principle of the invention also can be applicable to simulation, numeral and PCS cellular network.
Though illustrated and describe several particular forms of the present invention, can carry out various modifications and do not break away from spirit of the present invention and category, this point is conspicuous.
Claims (13)
1, a kind of cellular network comprises:
Subzone network, one or more mobile radio stations can move in this subzone network;
Control station is coupled to this subzone network communicatedly;
Dominant base, be deployed in each sub-district of subzone network can with one or more mobile station communicates;
Standby base station, be deployed in each sub-district of subzone network can with one or more mobile station communicates;
Main satellite station, arrangement enlarges dominant base and standby base station with the zone in the coverage cell network; With
The backup satellite station is deployed in the main satellite station of expansion in the described zone.
2, according to the cellular network of claim 1, also comprise:
Programmable processor in this control station, the described processor of programming is to carry out following steps:
The calling that will be referred to mobile radio station is distributed to a standby base station from a dominant base.
3, according to the cellular network of claim 1, also comprise:
Memory in the control station; With
Be stored in the control program in the memory.
4, according to the cellular network of claim 3, wherein:
This memory comprises the distributing buffer device, be used for each arrangement dominant base dominant base handover buffer and be used for the standby base station handover buffer of the standby base station of each arrangement.
5, according to the cellular network of claim 3, wherein said control program comprises one group of instruction, and this group instruction makes the series of steps of processor execution below comprising when being carried out by processor:
The calling that will be referred to mobile radio station is distributed to a standby base station from a dominant base.
6, according to the cellular network of claim 1, wherein:
Dominant base and standby base station are deployed in the central area of each sub-district of subzone network.
7, a kind of method of the calling route of in the cellular network that comprises subzone network, using with the dominant base in each sub-district that is deployed in subzone network, the method may further comprise the steps:
With each dominant base standby base station of arrangement in each center of housing estate zone of subzone network;
A specific dominant base and the calling relevant with mobile radio station are distributed in supervision;
Send mobile radio station and will cross the alarm on border between the network cell; With
Change to specific standby base station from a described specific dominant base according to the distribution of this alarm described calling.
8, according to the method for claim 7, also comprise step:
Determine the position and the speed of mobile radio station.
9, according to the method for claim 7, also comprise step:
According to signal level and the definite distribution of calling out of bit error rate.
10, according to the method for claim 7, also comprise step:
Standby base station from be deployed in a network cell receives report.
11, according to the method for claim 7, also comprise step:
Call distribution is changed to second dominant base from described specific standby base station.
12, according to the method for claim 7, also comprise step:
Arrangement master satellite station is with the zone in the coverage cell network, and described main satellite station enlarges dominant base and the standby base station that is deployed in the subzone network.
13, according to the method for claim 12, also comprise step:
Arrangement backup satellite station in described zone, described backup satellite station enlarges described main satellite station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98124557 CN1224318A (en) | 1997-10-14 | 1998-10-13 | Cellular networks with spare base and satellite stations |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US943291 | 1997-10-14 | ||
| CN 98124557 CN1224318A (en) | 1997-10-14 | 1998-10-13 | Cellular networks with spare base and satellite stations |
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| Publication Number | Publication Date |
|---|---|
| CN1224318A true CN1224318A (en) | 1999-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98124557 Pending CN1224318A (en) | 1997-10-14 | 1998-10-13 | Cellular networks with spare base and satellite stations |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309276C (en) * | 2001-06-13 | 2007-04-04 | 艾利森电话股份有限公司 | Dynamic handling of orphan cells |
| CN101873674A (en) * | 2009-04-21 | 2010-10-27 | 财团法人资讯工业策进会 | Mobile device, base stations, backhaul network device, and method and computer program storage product for the mobile device |
| CN101444128B (en) * | 2003-12-30 | 2011-07-06 | 思科技术公司 | Methods and apparatus for reducing roaming latency in a mobile node |
| CN113630153A (en) * | 2021-09-17 | 2021-11-09 | 中国联合网络通信集团有限公司 | Backup control method, equipment, system and storage medium for 5G base station |
| WO2022032457A1 (en) * | 2020-08-10 | 2022-02-17 | 华为技术有限公司 | Data transmission method, communication apparatus and communication system |
-
1998
- 1998-10-13 CN CN 98124557 patent/CN1224318A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309276C (en) * | 2001-06-13 | 2007-04-04 | 艾利森电话股份有限公司 | Dynamic handling of orphan cells |
| CN101444128B (en) * | 2003-12-30 | 2011-07-06 | 思科技术公司 | Methods and apparatus for reducing roaming latency in a mobile node |
| CN101873674A (en) * | 2009-04-21 | 2010-10-27 | 财团法人资讯工业策进会 | Mobile device, base stations, backhaul network device, and method and computer program storage product for the mobile device |
| CN101873674B (en) * | 2009-04-21 | 2013-03-27 | 财团法人资讯工业策进会 | Mobile device, base stations, backhaul network device, and method for the mobile device |
| WO2022032457A1 (en) * | 2020-08-10 | 2022-02-17 | 华为技术有限公司 | Data transmission method, communication apparatus and communication system |
| CN113630153A (en) * | 2021-09-17 | 2021-11-09 | 中国联合网络通信集团有限公司 | Backup control method, equipment, system and storage medium for 5G base station |
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