WO1997017779A1 - Systeme de transmission entre une station de base et un central de communication mobile a l'aide d'une cellule a longueur fixe - Google Patents
Systeme de transmission entre une station de base et un central de communication mobile a l'aide d'une cellule a longueur fixe Download PDFInfo
- Publication number
- WO1997017779A1 WO1997017779A1 PCT/JP1996/003227 JP9603227W WO9717779A1 WO 1997017779 A1 WO1997017779 A1 WO 1997017779A1 JP 9603227 W JP9603227 W JP 9603227W WO 9717779 A1 WO9717779 A1 WO 9717779A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- call
- slot
- transfer
- type
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0478—Provisions for broadband connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5603—Access techniques
- H04L2012/5604—Medium of transmission, e.g. fibre, cable, radio
- H04L2012/5607—Radio
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
- H04L2012/5651—Priority, marking, classes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
- H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
- H04L2012/566—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM layer
- H04L2012/5662—Macrocells or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5678—Traffic aspects, e.g. arbitration, load balancing, smoothing, buffer management
- H04L2012/5679—Arbitration or scheduling
Definitions
- An object of the present invention is to provide a fixed-length cell (ATM cell) for storing information of the same type of call or different types of calls such as information transfer rates. By preparing slots and transmitting frames composed of cell slots periodically, the gap between cell generation timing and transmission timing and queuing should be minimized.
- ATM cell fixed-length cell
- the present invention uses a frame composed of cells having cells and slots corresponding to different cell generation timings of the same call type and different call types to periodically generate the same call type cells and different call type cells. Transfer to By using this frame, the cell transmission delay is reduced.
- ATM fixed-length cell
- Cell a cell that has not been used as an empty cell slot for information transfer and is a shared cell slot that can be shared between multiple call types.
- Cell using the shared cell slot.
- the information transfer efficiency of the transmission path can be improved.
- the call In the transfer of overflow calls using the shared cell slot, if there are simultaneous calls that exceed the number of available shared cells and slots in the shared cell slot, the call cannot be distinguished regardless of whether it is a priority call or a nonpriority call. This is a completed call.
- FIG. 1 is a diagram illustrating a conventional method of transmitting a plurality of call ATM cells to the same transmission line.
- FIG. 2 is a block diagram showing a configuration of the mobile communication system of the present invention.
- FIG. 3 is a diagram illustrating a transfer algorithm for the same type of call.
- FIG. 4 is a diagram for explaining a transfer algorithm in the case of one call per different call type.
- FIG. 5 is a diagram illustrating a transfer algorithm extended in the case of multiple calls for different call types.
- FIG. 6 is a diagram illustrating a case where the third embodiment is applied on a per-call basis for different call types.
- FIG. 7 is a diagram illustrating a case where the third embodiment is applied to a different call type by extending it to a plurality of call units.
- FIG. 8 is a diagram showing an ATM header configuration.
- FIG. 9 is a diagram illustrating a case where the third embodiment is applied on a per call basis for different call types.
- Fig. 10 shows that Embodiment 3 is applied to a different call type by extending it to multiple call units. It is a figure explained in the case. DESCRIPTION OF EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings.
- FIG. 2 is a configuration example of a mobile communication system showing an embodiment of the present invention.
- 100 is a mobile terminal
- 101 is a radio base station
- 102 is a transmitting / receiving device
- 107 is an exchange in the mobile communication system.
- Reference numerals 103 and 109 denote circuits for assembling and disassembling ATM cells in the radio base station 101 and the mobile switching center 107.
- the ATM cell generated by the ATM cell assembling / disassembling circuit 103 in the radio base station 101 for each call type is accommodated in a predetermined position of the transfer frame, transmitted, and received.
- This is a transfer frame assembling / disassembling circuit that has the function of disassembling and extracting ATM cells from the transfer frame.
- Reference numeral 105 denotes a transfer frame assembling / disassembling circuit for transmitting and receiving a transfer frame 200 in the mobile switching center 107 in synchronization with the transfer frame assembling / disassembling circuit 104 in the radio base station 101. is there.
- Reference numeral 108 denotes a device for performing code conversion composed of an ATM cell assembling / disassembling circuit 109 and a codec circuit 110 in the mobile switching center 107.
- Reference numeral 11 1 denotes a switching switch for connecting the telephone set 112 to the ATM cell assembling / disassembling circuit 109 in the mobile switching center 107.
- Reference numeral 112 denotes a telephone, and 113 denotes a transmission path for transmitting the transfer frame 200.
- Mobile terminals 1 0 0-1, 1 0 0-2, 1 00-3 with different call types communicate with each other while moving to the wireless zone controlled by the wireless base station 101-1.
- the radio channel for communication between each mobile terminal 101 and the transmitting / receiving device 102 in the radio base station 101-1 has been selected. Since the radio base station 101-1 communicates with the mobile switching center 107, the ATM cell assembling / disassembling circuit 103 of the radio base station and the ATM cell assembling / disassembling circuit 109 of the mobile switching center can communicate with each other. So the ATM link has been established. The description will be made assuming that the switching switch 111 is set to connect, for example, the codec 110-1 to the telephone 112.
- the coded signal of call type a transmitted from the mobile terminal 100-1 is received by the transmitting / receiving device 102 in the wireless base station 101-1 through the wireless channel ch1, and transmitted by the ATM cell.
- the ATM cell assembling / disassembling circuit is formed into cells in the form of 103-1. Similar processing is performed for the mobile terminals 100-2 and 100-3, and each ATM cell is sent to the transfer frame assembling / disassembling circuit 104.
- an ATM cell is placed in a cell slot prepared for transferring an ATM cell accommodating each call type, and a transfer frame 200 is periodically assembled at a period T. And send it out.
- the transfer frame 200 passes through the transmission line 113, and is synchronously received by the transfer frame assembling / disassembling circuit 105 in the mobile switching center 107.
- Each ATM cell in the transfer frame decomposed into ATM by the transfer frame assembling / disassembling circuit 105 is transferred to the ATM switch 106.
- the ATM cell is routed to the ATM cell assembling / disassembling circuit 109 by the ATM header at the ATM switch 106.
- the routed ATM cell is converted into an encoded signal in the ATM cell assembling / disassembling circuit 109, and is decoded into a speech code by the codec 110.
- the audio signal decoded by the codec is sent through the switching switch 111 to, for example, the telephone 112. Be trusted.
- transfer frames 200-1 to 200-4 are prepared in the transfer frame assembling / disassembling circuit 104.
- the transfer frames such as ATM cells corresponding to each call, are used for the transfer slot 201 1; ⁇ 2 0 1-3 are prepared.
- the transfer frame is generated by the transfer frame assembling / disassembling circuit 104 at a period T and transmitted to the transmission path.
- FIG. 4 is a diagram illustrating a transfer algorithm applied in the case of one call for each different call type.
- reference numeral 200 denotes a transfer frame containing a fixed number of cell slots 201 and transferred at a fixed period T
- reference numeral 201 denotes a transfer of an ATM cell carrying each call type. This is a cell slot reserved in advance.
- the ratio of the time required for this information to be accommodated in the ATM cell payload (even when the transport medium is not a standard ATM cell but a fixed length packet) is
- the call types a, b, and c are required to be transmitted without delay.
- call types b and c should be transferred at twice and four times the cycle of a, respectively.
- a transfer consisting of cells' slots 20 1--1, 2 0 1 -2, 2 0 1- 3 for transferring each call type cell Frame 2 00 for that transfer It can be transferred without delay by preparing it corresponding to the cycle and scheduling it to be transmitted to the transmission line 113 at cycle T.
- FIG. 5 is a diagram illustrating a transfer algorithm extended and applied to the case of a plurality of calls for different call types.
- reference numeral 300 denotes a transfer frame that accommodates the same number of cell 'slot groups 301 as the number of call types to be transferred and is transferred at a constant period T.
- Numeral 301 denotes a cell 'slot group consisting of a plurality of consecutively reserved cell slots for the transfer of ATM cells carrying the respective call types.
- the ratio of the time required for these types of information to be accommodated in the ATM cell payload (when the transmission medium is not a standard ATM cell but also in a fixed-length packet) is as follows.
- the transfer method described above is incomplete because there is no means to transfer when a call exceeds the number of cell 'slots or cell' slots-groups 'cell' slots for each call type. Become a call.
- This embodiment also uses the configuration of the mobile communication system shown in FIG.
- FIG. 6 is a diagram illustrating a transfer algorithm according to the present embodiment applied to different call types on a call-by-call basis in the mobile communication system shown in FIG.
- reference numeral 200 denotes a transfer frame which accommodates a fixed number of cells 'slot 201 and a shared cell' slot 203 and is transferred at a fixed period ⁇ .
- 201 is a cell 'slot reserved in advance for the transfer of ATM cells carrying each call type.
- Reference numeral 203 denotes a shared cell slot used instead of cell slot 201 when cell slot 201 for call type transfer is already used for communication at the time of calling. is there.
- call types a, b, and c are the same as those in the embodiment shown in FIG.
- FIG. 7 is a diagram illustrating a transfer algorithm that is extended and applied to a plurality of calls for different call types.
- reference numeral 300 denotes a frame for transfer that accommodates the same number of cells as the type of call to be transferred, the 'slot' group 301 and the shared cell / slot 'group 303, and is transferred at a constant cycle T.
- 0 1 is a cell 'slot group' consisting of multiple consecutive slots reserved for the transfer of ATM cells carrying each call type.
- Cell 'slot' group 301 is already used for communication and shared cell 'slot' is used instead of cell 'slot group 301' when there is no room in cell 'slot' ⁇ Be a group
- the cells used for normal transfer The 'slot' cells that can be assigned to the group If there are no slots, use empty cell 'slot group 302 as shared cell and use slot group 303 to carry more calls than the transmission described in the first embodiment. It becomes possible. (Example 4)
- the call when a call exceeds the number of available shared cells / slots prepared for the shared cell 'slot or shared cell' slot group, the call is taken into account based on the priority of the overflowing call. Prioritize and transfer shared cell slots. This can reduce the probability of a priority call becoming an incomplete call.
- FIG. 8 shows an ATM header.
- Reference numeral 401 denotes an identifier for identifying the priority of a cell in CLP (CelLLossPriority) standardized by ITU-T.
- CLP ChipLossPriority
- ITU-T ITU-T
- FIG. 9 is a diagram illustrating a transfer algorithm in which the present embodiment is applied to different call types on a call-by-call basis. This embodiment also uses the configuration of the mobile communication system shown in FIG.
- reference numeral 200 denotes a transfer frame that accommodates a fixed number of cell slots 201 and a shared cell slot 203 and is transferred at a fixed period T.
- 201 is a cell-slot reserved in advance for the transfer of ATM cells carrying each call type.
- 203 is a cell for transferring the call type when calling. This is a shared cell slot used instead of cell 'slot 201 when slot 201 is already used for communication.
- Reference numeral 204 denotes an ATM cell carrying a priority call
- reference numeral 205 denotes an ATM cell carrying a non-priority call.
- the information in the cell can determine whether the call is a priority call or a non-priority call.
- the ATM cell assembling / disassembling circuits 103 and 109 set the CLP identifier 401 in FIG. 7 to “0” when transferring a priority call, and in FIG. 7 when transferring a non-priority call.
- the CLP identifier 410 is set to "1".
- the transfer frame assembling / disassembling circuit 104 looks at the CLP identifier 401 in the ATM header and determines whether the information carried by the corresponding ATM cell is a priority call or a non-priority call.
- the present invention can also be realized when the priority and non-priority calls are identified by another method, by determining the priority in the transfer frame assembling / disassembling circuit 104 by the identification method. is there.
- the conditions of the call types a, b, and c are the same as those in the first embodiment shown in FIGS.
- the transfer cycle of the call type a is T
- the call types b and c can be transferred at twice and four times the cycle of a, respectively.
- the transfer frame 2 composed of the cell 'slot 20 1-1, 2 0 1-2, 2 0 1-3 for transferring each call type cell. By preparing 0 1 and scheduling it so that it is transmitted to the transmission path 113 at a period T, it can be transferred without delay.
- Figures 4 and 6 show the limited force for each call type a, b, c. 8 also has a similar limitation. Then, when a new call is made for call types b and c, the shared cell slot 203 is reserved for new call transfer, as in FIG. As a result, it is possible to perform periodic transfer without delay as in the second embodiment shown in FIG.
- the slot type is a 1-cell slot for call type a, 1 cell slot for call type b, and cell slot for call type c. It is assumed that the number of shared cell 'slots available for ATM cell transfer is one cell' slot.
- call b2 is a priority call
- call b3 is a non-priority call.
- the CLP 401 in the ATM header of the ATM cell for transferring each call is assigned so that the priority and non-priority can be identified.
- the transfer frame assembling / disassembling circuit 104 identifies the CLP 401 with respect to the ATM cells 204 and 205 sent from the ATM cell assembling / disassembling circuit 103 and sends the ATM cell to the ATM cell 204 which transfers the priority call.
- a cell to be transferred to ATM cell 205 which transfers a non-priority call by allocating a shared cell slot to it.
- An incomplete call notification is sent to the mobile terminal 100 and the mobile switching center 107.
- the shared cell slot is determined based on the priority of the overflow call.
- FIG. 10 illustrates a transfer algorithm extended and applied to a plurality of calls for different call types.
- 300 is transmitted This is a transfer frame that contains the same number of cells as the call type, 'slot' group 301 and shared cell-slot 'group 303, and is transferred at a fixed period T.
- Reference numeral 301 denotes a cell slot group in which a plurality of consecutive cell 'slots are reserved in advance for the transfer of ATM cells carrying each call type.
- 303 is the cell.slot.group for transferring the call type when a call is made. If the cell is already used for communication and the cell's slot is full, the cell's slot group is used. This is a shared cell 'slot' group used instead of 1.
- Reference numeral 304 denotes an ATM cell group carrying a priority call
- reference numeral 304 denotes an ATM cell group carrying a non-priority call.
- the transfer frame assembling / disassembling circuit 104 receives the ATM cell groups 304, 30 transmitted from the ATM cell assembling / disassembling circuit 103. For 5, identify CLP 4 0 1. Then, the common cell slot is allocated to the ATM cell group 304 to which the priority call is transferred, and the transfer is performed. For the ATM cell group 305 to which the non-call destination call is transferred, the cell to be transferred is transferred using the shared cell slot in the shared cell slot slot group as far as possible. For calls that transfer in other cells in the ATM cell group 305, the incomplete call notification is sent to the mobile terminal 100, because the cell slot for transfer cannot be allocated. Notify mobile switching center 107.
- the priority in the overflow call Priority is given to shared cell slots based on the characteristics and the data is transferred. As a result, the probability of a priority call being an incomplete call can be reduced.
- cells of a plurality of connections carrying the same type of call or call type information having different information transfer rates can be periodically transmitted without delay in a specific cell 'slot group. Communication quality is improved.
- the overflow call is not considered an incomplete call and is forwarded, thereby improving information transfer efficiency. improves.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/849,963 US6442149B1 (en) | 1995-11-06 | 1996-11-05 | Transmission system between base station and switching center of mobile communications using fixed length cell |
DE1996632399 DE69632399T2 (de) | 1995-11-06 | 1996-11-05 | Übertragungssystem zwischen basisstation und mobilkommunikationsvermittlung über zellen fester länge |
JP51805797A JP3183351B2 (ja) | 1995-11-06 | 1996-11-05 | 固定長セルを使用した移動通信の基地局と交換局間の伝送システム |
EP96935539A EP0820165B1 (en) | 1995-11-06 | 1996-11-05 | System for transmission between base station and exchange of mobile communication using fixed-length cell |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28755395 | 1995-11-06 | ||
JP7/287553 | 1995-11-06 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/849,963 A-371-Of-International US6442149B1 (en) | 1995-11-06 | 1996-11-05 | Transmission system between base station and switching center of mobile communications using fixed length cell |
US10/099,371 Continuation US6639903B2 (en) | 1995-11-06 | 2002-03-14 | Transmission system between base station and switching center of mobile communications using fixed length cell |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997017779A1 true WO1997017779A1 (fr) | 1997-05-15 |
Family
ID=17718841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/003227 WO1997017779A1 (fr) | 1995-11-06 | 1996-11-05 | Systeme de transmission entre une station de base et un central de communication mobile a l'aide d'une cellule a longueur fixe |
Country Status (6)
Country | Link |
---|---|
US (2) | US6442149B1 (ja) |
EP (1) | EP0820165B1 (ja) |
JP (1) | JP3183351B2 (ja) |
CN (1) | CN1110161C (ja) |
DE (1) | DE69632399T2 (ja) |
WO (1) | WO1997017779A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0961444A1 (en) * | 1997-09-16 | 1999-12-01 | Ntt Mobile Communications Network Inc. | Packet transmission method, packet transmission device, radio frame transmission method, mobile communication method, mobile communication system, and exchange |
JP2001308928A (ja) * | 2000-03-13 | 2001-11-02 | Mitsubishi Electric Inf Technol Center Europ Bv | 通信システムのアクセスネットワークにおける基地局とアクセスネットワークコントローラとの間の送信方法 |
US7031315B2 (en) | 2000-10-13 | 2006-04-18 | Juniper Networks,Inc. | Transmission scheduling based on time slot positions |
US8280424B2 (en) | 2001-08-21 | 2012-10-02 | Core Wireless Licensing S.A.R.L. | Transmission of data within a communications network |
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US6931009B1 (en) * | 1997-07-15 | 2005-08-16 | Viasat, Inc. | Frame format and frame assembling/disassembling method for the frame format |
US7570645B2 (en) * | 2000-01-18 | 2009-08-04 | Viasat, Inc. | Frame format and frame assembling/disassembling method for the frame format |
US6381647B1 (en) * | 1998-09-28 | 2002-04-30 | Raytheon Company | Method and system for scheduling network communication |
DE19919177A1 (de) * | 1999-04-28 | 2000-11-02 | Philips Corp Intellectual Pty | Netzwerk mit mehreren Netzwerk-Clustern zur drahtlosen Übertragung von Paketen |
US8254394B1 (en) | 1999-06-29 | 2012-08-28 | Cisco Technology, Inc. | Technique for providing constant bit rate (CBR) service over a time-slotted access channel |
GB9915327D0 (en) * | 1999-06-30 | 1999-09-01 | Nortel Networks Corp | Packet interface and method of packetizing information |
US7215650B1 (en) * | 1999-08-16 | 2007-05-08 | Viasat, Inc. | Adaptive data rate control for narrowcast networks |
US7046678B2 (en) * | 2000-02-18 | 2006-05-16 | At & T Corp. | Channel efficiency based packet scheduling for interactive data in cellular networks |
US7230908B2 (en) * | 2000-07-24 | 2007-06-12 | Viasat, Inc. | Dynamic link assignment in a communication system |
WO2005004426A1 (en) * | 2003-07-03 | 2005-01-13 | Matsushita Electric Industrial Co., Ltd. | Transmitter and method for digital multi-carrier transmission using wavelets |
CN100450228C (zh) * | 2005-06-01 | 2009-01-07 | 华为技术有限公司 | 消除实时业务和非实时业务的传输时延相关性的方法 |
JP4628254B2 (ja) * | 2005-11-04 | 2011-02-09 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局及びデータ転送方法 |
US20080159332A1 (en) * | 2006-12-29 | 2008-07-03 | John Christian Martinez | Methods and devices for using variable length subpackets in data transmissions |
KR101840712B1 (ko) | 2015-04-24 | 2018-03-21 | 주식회사 리그닌 | 액체 분리형 마스크 팩 포장용기 제조방법 |
CN109547414B (zh) * | 2018-10-29 | 2021-04-20 | 中国人民解放军战略支援部队信息工程大学 | 基于亮灯效应的定长消息格式逆向方法 |
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- 1996-11-05 JP JP51805797A patent/JP3183351B2/ja not_active Expired - Lifetime
- 1996-11-05 CN CN96191364A patent/CN1110161C/zh not_active Expired - Lifetime
- 1996-11-05 EP EP96935539A patent/EP0820165B1/en not_active Expired - Lifetime
- 1996-11-05 US US08/849,963 patent/US6442149B1/en not_active Expired - Lifetime
- 1996-11-05 DE DE1996632399 patent/DE69632399T2/de not_active Expired - Lifetime
- 1996-11-05 WO PCT/JP1996/003227 patent/WO1997017779A1/ja active IP Right Grant
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2002
- 2002-03-14 US US10/099,371 patent/US6639903B2/en not_active Expired - Lifetime
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JPH03297245A (ja) * | 1990-04-16 | 1991-12-27 | Nippon Telegr & Teleph Corp <Ntt> | セル多重化装置 |
JPH0630033A (ja) * | 1992-07-10 | 1994-02-04 | Matsushita Electric Ind Co Ltd | セル送出装置 |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0961444A1 (en) * | 1997-09-16 | 1999-12-01 | Ntt Mobile Communications Network Inc. | Packet transmission method, packet transmission device, radio frame transmission method, mobile communication method, mobile communication system, and exchange |
EP0961444A4 (en) * | 1997-09-16 | 2005-02-02 | Nippon Telegraph & Telephone | PACKET TRANSMISSION METHOD, PACKET TRANSMISSION DEVICE, RADIO FRAME TRANSMISSION METHOD, MOBILE TELECOMMUNICATIONS METHOD, MOBILE TELECOMMUNICATIONS SYSTEM AND SWITCH |
US6950423B2 (en) | 1997-09-16 | 2005-09-27 | Ntt Mobile Communications Newtork, Inc. | Packet transmission method, packet transmission device, radio frame transmission method, mobile communication method, mobile communication system, and exchange |
JP2001308928A (ja) * | 2000-03-13 | 2001-11-02 | Mitsubishi Electric Inf Technol Center Europ Bv | 通信システムのアクセスネットワークにおける基地局とアクセスネットワークコントローラとの間の送信方法 |
US7031315B2 (en) | 2000-10-13 | 2006-04-18 | Juniper Networks,Inc. | Transmission scheduling based on time slot positions |
US7602715B2 (en) | 2000-10-13 | 2009-10-13 | Juniper Networks, Inc. | Scheduling system and scheduling method for the same |
US8014276B2 (en) | 2000-10-13 | 2011-09-06 | Juniper Networks, Inc. | Scheduling system and scheduling method for the same |
US8280424B2 (en) | 2001-08-21 | 2012-10-02 | Core Wireless Licensing S.A.R.L. | Transmission of data within a communications network |
US8774822B2 (en) | 2001-08-21 | 2014-07-08 | Core Wireless Licensing S.A.R.L. | Transmission of data within a communications network |
Also Published As
Publication number | Publication date |
---|---|
EP0820165A1 (en) | 1998-01-21 |
US6639903B2 (en) | 2003-10-28 |
CN1168207A (zh) | 1997-12-17 |
CN1110161C (zh) | 2003-05-28 |
EP0820165A4 (en) | 1999-12-15 |
DE69632399D1 (de) | 2004-06-09 |
US20020093939A1 (en) | 2002-07-18 |
JP3183351B2 (ja) | 2001-07-09 |
US6442149B1 (en) | 2002-08-27 |
EP0820165B1 (en) | 2004-05-06 |
DE69632399T2 (de) | 2005-05-04 |
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