WO1999017577A1 - Optimierung von nachbarkanal-messberichten - Google Patents
Optimierung von nachbarkanal-messberichten Download PDFInfo
- Publication number
- WO1999017577A1 WO1999017577A1 PCT/DE1998/002509 DE9802509W WO9917577A1 WO 1999017577 A1 WO1999017577 A1 WO 1999017577A1 DE 9802509 W DE9802509 W DE 9802509W WO 9917577 A1 WO9917577 A1 WO 9917577A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- measurement report
- mobile station
- current base
- measurement
- Prior art date
Links
- 238000005457 optimization Methods 0.000 title description 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 156
- 238000012790 confirmation Methods 0.000 claims description 16
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Definitions
- the present invention relates to a method and a system for transmitting data packets between a mobile station and a current base station of a mobile radio system according to the preamble of claim 1 and the preamble of claim 5.
- Mobile stations must use so-called Mobile Assisted Handover Algorithms, ie. H. with algorithms which relate a handover of the mobile station from one mobile radio cell to the next mobile radio cell, which is supported by the mobile station, regularly send information about measurements of adjacent channels or of signals from neighboring base stations to the current base station. This information is transmitted in so-called measurement reports.
- BSIC Base Station Identity Code
- the mobile station only transmits measurement data relating to the six most strongly transmitting neighboring base stations. Measurement reports of this type are transmitted in the GSM system every 104 time frames without a Layer 2 protocol (HDLC) from a mobile station to the respective current base station.
- HDLC Layer 2 protocol
- the object of the present invention is therefore to provide a method and a system for transmitting data packets between a mobile station and a current base station of a mobile phone.
- This object is achieved by a method for transmitting data packets between a mobile station and a current base station of a mobile radio system, in which the mobile station repeatedly sends measurement reports to the current base station, each of which contains measurement data relating to a number of neighboring base stations, and which is characterized in that for at least one neighboring base station whose measurement data have already been received and stored by the current base station in an earlier measurement report, reference information is contained in a later measurement report which refers to the measurement data of the respective earlier measurement report .
- a system for transmitting data packets between a mobile station and a current base station of a mobile radio system in which a transmitting device is provided in the mobile station, which transmits measurement reports to a receiving device of the current base station in a repeated manner, each of which contains measurement data relating to a number of adjacent base stations, and which is characterized in that for at least one adjacent base station, the measurement data of which have already been received in an earlier measurement report by the receiver of the current base station and have been stored in a memory device of the current base station are contained in a later measurement report reference information that refers to the measurement data of the respective earlier measurement report.
- the present invention thus ensures that, in particular in the case of fully developed networks, and here in particular in the case of hierarchical networks mentioned, in which the same Ge ⁇ Biet large, small and very small cells overlap, each containing the measurement reports measurement data regarding the largest possible number of adjacent base stations, as in this case, not necessarily the received most neighboring base station, an optimally Grid utilization guaranteed.
- the present invention allows the measurement reports to be encoded with the smallest possible number of bits, so that as little bandwidth as possible is used for this.
- measurement data already known by the mobile station relating to neighboring base stations is not retransmitted to the current base station, but simply referenced by reference data.
- the measurement report can be coded more efficiently as soon as an adjacent base station appears in a measurement report for the second time.
- the transmission capacity saved in this way can be used, for example, to transmit measurement data relating to other neighboring base stations.
- Measurement reports are stored, which are referred to in a later measurement report.
- the current base station advantageously sends first confirmation information as to whether it has received the measurement report. Furthermore, with each measurement report, the mobile station advantageously sends a second confirmation information whether it has received the previous first confirmation information to the current base station.
- Bilstation between the Mo ⁇ and the current base station defines a similar to the Layer 2 protocol protocol, by means of which the mobile station knows when receiving the current base station Judges a measuring range. From then on, the mobile station changes the format of the measurement report and no longer repeatedly transmits the channel number reference and the identifier of an adjacent base station, but only reference information relating to the position in the measurement report previously sent. In this way, the base station can be referenced with significantly less transmission space.
- the mobile station can encode and transmit measurement data of other neighboring base stations in the freed-up transmission space.
- FIGS. 1 to 4 wherein:
- 1 shows the general structure of a system for transmitting data packets between a mobile station and a current base station
- Fig. 3 is a diagram for explaining the principle of the invention with nested sub-channels
- Fig. 4 is a table with examples of the coding of measurement reports according to the present invention.
- the base station 1 comprises a receiving device 3 and a transmitting unit. 4 6. direction to a common antenna
- the Sendeeinrich ⁇ tung 4 and the receiving device 3 are connected to a memory means 5, can be stored in the respective at an earlier time by the mobile station 2 received measurement reports.
- the mobile station 2 comprises an antenna 7 which is connected to a transmitting device 8 and a receiving device 9.
- the transmitting device 8 and the receiving device 9 of the mobile station 2 are connected to a common storage device 10, in which measurement reports transmitted to the current base station 1 can be stored.
- the protocol explained relates, for example, to the transmission of measurement reports in SDCCH (stand-alone dedicated control channel).
- the mobile station 2 sends a second confirmation information (N (S) to the current base station 1, which indicates whether the mobile station 2 has received the previous first confirmation information, ie the bit Ack properly.
- N (S) a second confirmation information
- the mobile Station 3 sends the second confirmation information in the form of a bit N (S) to the current base station 1.
- Bit N (S) is atskat in modulo-2 Incre since ⁇ and thus can assume the values 0 to 1.
- R denotes the number of the measurement report that has just been transmitted, the number not being transmitted, but only used for referencing here.
- the current base station 1 sends the bit Ack with a value 0.
- the mobile station 2 receives the bit Ack with a value 1, see above it knows that the previously sent measurement report was received by base station 1 and stored in storage device 5.
- the mobile station 2 increments the bit N (S) in modulo-2 and sends and saves the next measurement report under this changed value of N (S). Since both the mobile station 2 and the current base station 1 have now stored the same neighboring identity information for the previous N (S), this information can be referenced in order to code the measurement report more efficiently.
- the current base station 1 therefore sends first confirmation information in the form of the bit Ack with the value 0 to the mobile station 2.
- the current base station 1 then sends the mobile station 2 the bit Ack with the value 1 to confirm receipt of the second measurement report.
- a transmission error occurs when the Ack bit is transmitted from the current base station 1 to the mobile station 2.
- the current base station 1 transmits the bit Ack with a value of 1 to the mobile station 2.
- the third measurement report can therefore be referred to by the mobile station 2, since it can be sure that the third measurement report was received and stored correctly in the current base station.
- the current base station 1 then transmits the bit Ack with a value of 0 to the mobile station 2.
- the bit N (S) retains the value 1.
- the protocol explained by way of example in FIG. 2 guarantees that for each measurement report sent, both partners, i. H. the mobile station 2 and the current base station 1 have saved the same previously sent measurement report for the previous value of N (S). There is an exception when establishing a connection, since neither the current base station 1 nor the mobile station 2 has anything stored here. This information can be assumed to be known in the measurement reports sent.
- This protocol described is similar to the known Layer 2 protocol, but here the transmission of a frame first transferred to Layer 2 is not guaranteed, but both partners know which frame is the last with the last used N (S). was transferred correctly.
- TCCH Traffic Control Channel
- the principle shown in FIG. 3 can also be applied to k subchannels.
- the possibility of coding measurement reports, which is optimized according to the invention, is explained below, for example in the case of the SDCCH.
- the measurement data characterizing the neighboring base station (frequency, BSIC) need not be repeated; a reference to the corresponding previous measurement report is sufficient.
- reference data relating to the position at which the measurement data of this neighboring base station was transmitted within the earlier measurement report can suffice.
- This information can be encoded with much fewer bits within the framework of the reference information.
- a bit map can be inserted at the beginning of the measurement report, which indicates which neighboring base stations of the previous measurement report are repeated, immediately followed by the field strength measurements for these repeated base stations. This is followed in the conventional format by new neighboring base stations not mentioned in the previous measurement report. The same principle is used in the next measurement report.
- All measurement data are therefore only to be transmitted for the measurement reports at the beginning; repeated measurements can be coded much more efficiently.
- the transmission capacity thus freed up can either be saved or used in another way, or additional measurement data relating to other neighboring base stations can be transmitted.
- 4 shows examples of the structure of measurement reports according to the invention in the context of the GSM system in a table.
- the number of new neighboring base stations can also be coded in two bits and three new neighboring base stations in 3 x 17 bits.
- a general example of the coding method according to the invention comprises a 12 bit bit card for up to 12 repeated neighboring base stations, a maximum of 12 x 6 field strength measurements (depending on the number of repetitions), three bits for coding the number of new neighboring base stations and at least 10 (11 + 6) bits of channel identification and field strength measurement, depending on free capacity.
- the method according to the invention can thus be used to code up to seven additional adjacent base stations with the same number of bits (105), the additional bit for N (S) still having to be taken into account.
- the number of bits required can be reduced; This makes sense if it can encode other information or save transmission bandwidth.
- the coding can be further optimized if, for. B. the number of new neighboring base stations is not always coded with three bits, but with as many bits as necessary.
- the repeated neighboring base stations not only from the neighboring base stations tions of the last measurement report can be selected, son ⁇ also countries from the front over ended, in each case the adjacent base stations longest no longer mentioned drop out of the list. This is particularly advantageous if individual neighboring base stations keep falling in and out at the end of the list of stored measurement reports.
- the present invention can be applied in a simple manner in that the principle of the present invention is practiced independently for all subchannels.
- a further improvement can occur in that if a better measurement report was sent on a subchannel, i. H. one that is more similar to the measurement report currently being sent, in which more neighboring base stations can therefore simply be referenced, and if the mobile station 2 knows that the current base station 1 has received and saved this measurement report, this measurement report can also be referenced. Then, however, the
- Subchannel k are also encoded in the transmitted measurement report, for which purpose a bit is necessary in the case of the GSM system and additionally the bit N (S) valid there. Since the current base station 1 only knows which confirmation the mobile station 2 has already received when the mobile station 2 transmits with a new N (S), the current base station 1 could not otherwise receive this new measurement report. Two additional bits must then be used in the GSM system.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59810601T DE59810601D1 (de) | 1997-09-26 | 1998-08-26 | Optimierung von nachbarkanal-messberichten |
JP2000514495A JP4047539B2 (ja) | 1997-09-26 | 1998-08-26 | 隣接チャネル測定レポートの最適化方法 |
AU97352/98A AU738955B2 (en) | 1997-09-26 | 1998-08-26 | Optimizing adjacent-channel measurement reports |
EP98951222A EP1020093B1 (de) | 1997-09-26 | 1998-08-26 | Optimierung von nachbarkanal-messberichten |
US09/509,221 US6856805B1 (en) | 1997-09-26 | 1998-08-26 | Apparatus and method for optimizing adjacent-channel measuring reports |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742650A DE19742650C2 (de) | 1997-09-26 | 1997-09-26 | Optimierung von Nachbarkanal-Meßberichten |
DE19742650.6 | 1997-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999017577A1 true WO1999017577A1 (de) | 1999-04-08 |
Family
ID=7843793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/002509 WO1999017577A1 (de) | 1997-09-26 | 1998-08-26 | Optimierung von nachbarkanal-messberichten |
Country Status (9)
Country | Link |
---|---|
US (1) | US6856805B1 (de) |
EP (1) | EP1020093B1 (de) |
JP (1) | JP4047539B2 (de) |
KR (1) | KR100563516B1 (de) |
CN (1) | CN1123267C (de) |
AU (1) | AU738955B2 (de) |
DE (2) | DE19742650C2 (de) |
ES (1) | ES2214740T3 (de) |
WO (1) | WO1999017577A1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9922204D0 (en) | 1999-09-20 | 1999-11-17 | Nokia Telecommunications Oy | Reporting communication link information |
US6934264B2 (en) * | 2001-08-30 | 2005-08-23 | Qualcomm, Incorporated | Method and apparatus for acknowledging a reception of a data packet in a CDMA communication system |
US8699990B2 (en) * | 2003-03-11 | 2014-04-15 | Motorola Mobility Llc | Location requests and measurement responses in wireless communications networks and methods |
KR20050081566A (ko) * | 2004-02-14 | 2005-08-19 | 삼성전자주식회사 | 고속 순방향 패킷 데이터를 전송하는 이동통신시스템에서압축 모드에 따른 복합 재전송을 수행하는 방법 |
US8995921B2 (en) | 2004-09-10 | 2015-03-31 | Interdigital Technology Corporation | Measurement support for a smart antenna in a wireless communication system |
CA2601161A1 (en) * | 2005-03-18 | 2006-09-21 | Seeker Wireless Pty Limited | Enhanced mobile location |
CN101180550A (zh) * | 2005-03-18 | 2008-05-14 | 探索无线公司 | 增强型移动台定位方法和系统 |
CA2603463A1 (en) * | 2005-04-08 | 2006-10-12 | Seeker Wireless Pty Limited | Enhanced terrestrial mobile location |
EP1941758A4 (de) * | 2005-10-24 | 2012-04-25 | Wavemarket Inc D B A Location Labs | Detektion bei der mobildienst-wartung |
CN101356765A (zh) * | 2005-11-04 | 2009-01-28 | 探索无线公司 | 基于描述文件的通信服务 |
US8045992B2 (en) * | 2006-03-20 | 2011-10-25 | Intel Corporation | Uplink and downlink control signaling in wireless networks |
US8923843B2 (en) * | 2006-12-28 | 2014-12-30 | Alcatel Lucent | Distributed multi-radio transmission diversity |
WO2008109948A1 (en) * | 2007-03-13 | 2008-09-18 | Seeker Wireless Pty Limited | Enhanced zone determination |
CN101272574B (zh) * | 2007-03-21 | 2011-01-05 | 大唐移动通信设备有限公司 | 实现通信系统的测量的方法、系统及装置 |
WO2009036497A1 (en) | 2007-09-17 | 2009-03-26 | Seeker Wireless Pty Limited | Systems and methods for triggering location based voice and/or data communications to or from mobile radio terminals |
US8737985B2 (en) * | 2007-11-26 | 2014-05-27 | Wavemarket, Inc. | Methods and systems for zone creation and adaption |
EP2269390A4 (de) * | 2008-04-07 | 2012-04-04 | Wavemarket Inc D B A Location Labs | Ortung von drahtlosen mobilen endgeräten |
CN101820684B (zh) * | 2009-02-27 | 2015-08-12 | 中兴通讯股份有限公司 | 资源度量的调整方法 |
US8244236B2 (en) | 2010-04-29 | 2012-08-14 | Wavemarket, Inc. | System and method for aggregating and disseminating mobile device tag data |
KR101042891B1 (ko) * | 2010-08-24 | 2011-06-20 | (주)에코솔리드 | 소켓 조립체 |
US8504077B2 (en) | 2010-12-04 | 2013-08-06 | Wavemarket, Inc. | System and method for monitoring and disseminating mobile device location information |
US9438685B2 (en) | 2013-03-15 | 2016-09-06 | Location Labs, Inc. | System and method for display of user relationships corresponding to network-enabled communications |
US20140378148A1 (en) * | 2013-06-25 | 2014-12-25 | Public Wireless, Inc. | Systems and methods for optimizing wireless networks |
US9301331B2 (en) * | 2013-09-13 | 2016-03-29 | Intel IP Corporation | Mobile radio communication devices, mobile radio communication networks, and methods for controlling the same |
US9402155B2 (en) | 2014-03-03 | 2016-07-26 | Location Labs, Inc. | System and method for indicating a state of a geographic area based on mobile device sensor measurements |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0454638A1 (de) * | 1990-04-26 | 1991-10-30 | Telefonaktiebolaget L M Ericsson | Verfahren zum Weiterreichen in einem mobilen Kommunikationssystem |
WO1995004419A1 (en) * | 1993-07-30 | 1995-02-09 | British Telecommunications Public Limited Company | Communications system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4303999A1 (de) * | 1993-02-11 | 1994-08-18 | Philips Patentverwaltung | Mobilfunksystem |
CA2107820A1 (en) * | 1992-10-16 | 1994-04-17 | Keith Daniel O'neill | Low-power wireless system for telephone services |
DE4307702A1 (de) * | 1993-03-11 | 1994-09-15 | Detecon Gmbh | Ein ortsabhängiges Handover-Verfahren in Mobilfunknetzen und Vorrichtung zur Ausübung des Verfahrens |
JPH09163431A (ja) * | 1995-12-12 | 1997-06-20 | Fujitsu Ltd | 無線チャネル割当て方法 |
US5978679A (en) * | 1996-02-23 | 1999-11-02 | Qualcomm Inc. | Coexisting GSM and CDMA wireless telecommunications networks |
-
1997
- 1997-09-26 DE DE19742650A patent/DE19742650C2/de not_active Expired - Fee Related
-
1998
- 1998-08-26 EP EP98951222A patent/EP1020093B1/de not_active Expired - Lifetime
- 1998-08-26 CN CN98809520A patent/CN1123267C/zh not_active Expired - Fee Related
- 1998-08-26 WO PCT/DE1998/002509 patent/WO1999017577A1/de active IP Right Grant
- 1998-08-26 US US09/509,221 patent/US6856805B1/en not_active Expired - Lifetime
- 1998-08-26 AU AU97352/98A patent/AU738955B2/en not_active Ceased
- 1998-08-26 ES ES98951222T patent/ES2214740T3/es not_active Expired - Lifetime
- 1998-08-26 DE DE59810601T patent/DE59810601D1/de not_active Expired - Lifetime
- 1998-08-26 JP JP2000514495A patent/JP4047539B2/ja not_active Expired - Fee Related
- 1998-08-26 KR KR1020007003055A patent/KR100563516B1/ko not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0454638A1 (de) * | 1990-04-26 | 1991-10-30 | Telefonaktiebolaget L M Ericsson | Verfahren zum Weiterreichen in einem mobilen Kommunikationssystem |
WO1995004419A1 (en) * | 1993-07-30 | 1995-02-09 | British Telecommunications Public Limited Company | Communications system |
Also Published As
Publication number | Publication date |
---|---|
CN1123267C (zh) | 2003-10-01 |
KR100563516B1 (ko) | 2006-03-27 |
DE19742650C2 (de) | 2000-05-11 |
DE19742650A1 (de) | 1999-04-08 |
EP1020093A1 (de) | 2000-07-19 |
AU738955B2 (en) | 2001-10-04 |
JP2001518768A (ja) | 2001-10-16 |
DE59810601D1 (de) | 2004-02-19 |
KR20010024237A (ko) | 2001-03-26 |
JP4047539B2 (ja) | 2008-02-13 |
AU9735298A (en) | 1999-04-23 |
EP1020093B1 (de) | 2004-01-14 |
CN1271502A (zh) | 2000-10-25 |
US6856805B1 (en) | 2005-02-15 |
ES2214740T3 (es) | 2004-09-16 |
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