CN101043458B - Method for variable block scheduling indication by an uplink state flag in a packet data communication system - Google Patents
Method for variable block scheduling indication by an uplink state flag in a packet data communication system Download PDFInfo
- Publication number
- CN101043458B CN101043458B CN2007100936064A CN200710093606A CN101043458B CN 101043458 B CN101043458 B CN 101043458B CN 2007100936064 A CN2007100936064 A CN 2007100936064A CN 200710093606 A CN200710093606 A CN 200710093606A CN 101043458 B CN101043458 B CN 101043458B
- Authority
- CN
- China
- Prior art keywords
- mobile radio
- usf
- station
- radio station
- blocks
- 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.)
- Expired - Lifetime
Links
Images
Abstract
A packet data communication system uses an USF (Uplink State Flag) transmitted on the downlink and interleaved with downlink data, to schedule traffic on the uplink for one or several mobile users utilizing the same physical channel. The USF indication is made variable and defined in the control signaling at setup of a packet transmission. An USF indicates to a mobile that one or several consecutive radio blocks is reserved for uplink transmission from a specific mobile. The mobile does not have to receive the USF during the remaining period defined by the number of radio blocks scheduled. The solution is especially advantageous in combination with adaptive antennas when all radio blocks on the downlink transmissions do not have to be broadcast to all users on a certain channel.
Description
Relate generally to packet data communication system of the present invention in more detail, relates to the method and apparatus of dynamic transmission resource allocation.
The explosivity of the growth of business communications system, especially cellular radio and telephone is grown up and has been forced system designer to seek at communication quality not to be reduced to the approach that increases the capacity of system under the situation below the threshold value that the user can allow.Simultaneously, the user is used for transfer of data to mobile communication equipment more prevalently, rather than is used for voice.As the business that more and more is widely used for radio communications system, people discuss day by day continually and send and receive Email and the possibility of using Web-browser to come the access World Wide Web (WWW).The response this point, communication system designer is sought the approach of being to and from mobile subscriber's transmitting data information effectively.
Between the requirement of data communication and for example voice communication, exist the difference of essence.For example, have relatively high expectations to what postpone, and data communication is to the having relatively high expectations of mistake as the voice of real time business, and lower to the requirement that postpones simultaneously.Compare the use that is more suitable in the packet communication protocol of transfer of data with circuit switched protocol and begin in cellular communications system, to find application.To both being attached to the GSM cellular system to Packet Service, being attached to the DAMPS cellular system again and carrying out standardization at present.
Today, gsm system provides a kind of circuit switched data services that can be used for outer data network interconnection.Circuit switched data services both had been used in circuit switching, was used for packet-switched data communication again.In order to make packet switched data communication more effective, introduced the new packet switched data service of a kind of GPRS of being called as (general packet radio service), as the part of GSM.GPRS has considered packet switching communication, for example, and IP or virtual circuit switched communication.GPRS had both supported connectionless protocol (for example, IP), to support connection-oriented agreement (X.25) again.One of advantage that adopts the packet switched data communication agreement is that single transfer resource can be shared between a plurality of users.Like this, for example, under the situation of GSM cellular system, a time slot on the radio frequency carrier can be used to receive and send data by a plurality of mobile subscribers.The transfer resource of sharing both had been used for uplink by the network side management of cellular system, was used for the downgoing line transmission again.
GPRS is a kind of gsm service and uses a part of GSM information basic facilities.Those parts of gsm communication system are described in european telecommunications standards institute (ETSI) file ETS 300 574, and this file is included in that this is for referencial use.
An advantage in cellular system, introducing packet data protocol is to support high data rate transfer, and realizes the flexibility of radio frequency bandwidth on the radio interface and effectively utilization simultaneously.The notion of GPRS wherein allows unique user to take more than one transfer resource simultaneously for a kind of what is called " multi-slot operation " design.
Fig. 1 illustrates the overview of GPRS network architecture.Information block from external network 122,124 gets into GPRS network at GGSN (gateway GPRS service node) 120 places.This minute group selection provides the route of the SGSN (serving GPRS support node) 116 of service to the zone at the GPRS mobile subscriber place of institute's addressing via underlying network 118 arrival from GGSN 120 then.The route of this minute group selection in the GPRS of special use transmission from SGSN to correct BBS (base station system).GPRS register 115 will keep all GPRS reservation data.The GPRS register can with can be not do not integrate with the HLR (domestic address register) 114 of gsm system yet.User data can exchange between SGSN and MSC, guaranteeing business interaction, such as restricted roaming etc.
Fig. 2 illustrates the flow process of gprs system packet switched.D.Turina etc. are at " suggestion of the multi-slot MAC layer operation that Packet Data Channel is used among the GSM " ICUPC, and 1996, Vol.2 has also done brief description to this in pp.572-576 one literary composition, and this literary composition attaches that this is for referencial use.
The grouping of receiving from network 210 is mapped on one or more logical connection control (LLC) frames 212, and the latter comprises information field, frame head (FH) and FCS (FCS).A LLC frame is mapped on a plurality of radio link data blocks (RLC data block) 214, and wherein each all comprises build (BH), information field and block check sequence (BCS) (BCS), and it can be used for the mistake in the inspection message field on receiver.Can be appreciated that as the professional and technical personnel piece is can be through the least part of radio interface from new transmission in dividing into groups.The RLC piece further is mapped on the physical layer radio.In gprs system, a radio blocks is mapped on 4 standard bursts that send in succession on the GSM physical channel.
Build comprises uplink Status Flag (USF) field, to support the dynamic media access method on the uplink.USF is used in the Packet Data Channel, so that allow multiplexed from several mobile subscribers' radio blocks, that is shares the dynamic assignment of transfer resource in the uplink.USF comprises 3 information bits, and confession is used for the coding of 8 multiplexed different USF states of uplink communication and uses.USF is included in the starting position of each radio blocks that transmits in the downgoing line, that is intersects with downlink communication to specific mobile subscriber.Because USF sends in each radio blocks of downgoing line; So use all mobile subscribers of dynamic allocation method and shared some transfer resources all must constantly monitor the downgoing line channel, whether show that any mobile subscriber is had idle uplink transmission so that confirm USF.If mobile subscriber of USF indication then allows to carry out uplink transmission in next uplink radio blocks.This technology is illustrated among Fig. 3, and wherein USF=R1 shows that mobile subscriber 1 (MS1) can be used for 4 pulse trains subsequently in uplink, to transmit.But; Under the situation that multi-slot distributes; When a mobile subscriber is assigned with an above time slot in each TDMA (time-division multiplex) frame; In 4 tdma frame processes, can transmit more than one RLC piece, each single RLC piece always intersects on the physical channel through 4 pulse trains, that is on the time slot.According to Fig. 3, if USF=R2, then this shows that mobile subscriber 2 (MS2) can be used for 4 pulse trains subsequently in uplink, to transmit then.Numerical value F represents a grouping direct access communications channels (PRACH) that is used for starting uplink transmission by the mobile subscriber.
When considering the adaptive antenna array of the effective use that use to increase cellular system capacity and rare radio resource, adopt the shortcoming of above-mentioned agreement just to become obviously.The realization of aerial array can be considered more effective transmission of radio signal and reception, because the energy that is transmitted can point to certain receiver with antenna lobe.This has limited the whole interference level in the cellular system significantly, and the emission power output possibly reduce and be limited to and departs from for example some direction of base station transmitter.
It is of crucial importance to the capacity that increases cellular system in the future to effectively utilize adaptive antenna.If control in the identical pulse train of signaling but the Down-Link Communications that for example is directed against specific mobile subscriber intersects at the downgoing line of planning to supply other users to use, then for realizing that the performance gain that adaptive antenna reached is conditional.An example is the above-mentioned USF sign that is included in in specific user's the downgoing line transmission.Different mobile subscribers can be on geography wide apart, so can not only focus on the signal energy of being transmitted on one or several direction.Similarly, the transmission for pointing to more than one mobile subscriber is difficult to obtain effective power control algorithm.
Adopt the another one shortcoming of above-mentioned agreement to be, (no) possibly introduced new modulation for some radio blocks on the downgoing line.In other words, the proposition of the latest development among the GSM is used new higher levels of modulation to the user that radio condition well thereby on the whole can increase this user's data speed and throughput of system.It is multiplexed preferably can freely to utilize modulation existing and new on the downgoing line that radio blocks is carried out, thereby obtains the relaying gain.In current agreement, to keep watch on and must arrive under the situation of the USF in the radio blocks that uses existing modulation at a GPRS mobile radio station, this is infeasible.
A possibility that overcomes this shortcoming is, initially set up signaling stipulate assorted petty the time user be allowed under the situation of sending on the uplink, use fixing distribution media access method.But, since for example on allocation of transmission resources flexibility increase, it is multiplexing beneficial on uplink, to have a dynamic multipath.
An object of the present invention is through introducing the efficient that extra flexibility improves the packet data communication system that uses dynamic resource allocation method aspect multiplexed in the uplink transmission resource.Utilizing USF to represent that the mobile subscriber is scheduled the radio blocks that the transmission any number occurs in succession on physical channel on the downgoing line; The mobile subscriber needn't monitor USF in the process of after this several downlink piece, its number is confirmed according to the indication that in giving the channel assignment message of particular mobile station, provides.
Regulation receives USF and shows to the mobile subscriber exactly and utilize uplink to distribute in initialization signaling when allocation of transmission resources that is physical channel.In tdma system, physical channel can be a time slot.In the multi-slot system, can distribute several time slots, but will specify different USF values for each distributed time slot, the latter can represent also can not be illustrated in the radio blocks transmission that has same number continuous in the uplink.In addition, according to the difference of each channel allocation, the up-link wireless electricity piece transmission that different numbers once occur representing of USF to different users.Through on physical channel, being the transmission of the continuous radio blocks of uplink transmission scheduling any number, before dispatching last uplink radio blocks, the mobile subscriber just there is no need in that transmission course, to monitor USF.As a result, the transmission on the downgoing line can accomplish more effectively with adaptive antenna and power control algorithm, and whole interference also is able to reduce.
According to reference to the following description of accompanying drawing to most preferred embodiment, above-mentioned purpose of the present invention and characteristic will be more readily apparent from, in the accompanying drawing:
Fig. 1 illustrates the architecture of GPRS network;
Fig. 2 illustrates transmitted in packets flow process and information mapping in the exemplary packet data communication system;
Fig. 3 illustrates the multiplexed USF sign of expression uplink transmission;
It is multiplexed that Fig. 4 illustrates the uplink of being carried out by the USF that represents a uplink radio blocks transmission;
Fig. 5 illustrates by the uplink of the USF execution of the more than one uplink radio blocks transmission of representative multiplexed; And
Fig. 6 illustrates according to exemplary communication state in the packet data communication system of the present invention.
To the present invention be described with regard to gprs system at present, wherein for utilize USF transmission method in the downgoing line multiplexed mobile subscriber dynamic resource allocation method is provided.The mobile subscriber who shares a transfer resource monitors the USF transmission in the downgoing line, so that determine when the permission uplink.
Up dynamic allocation method according to traditional system, is based on the USF granularity of a radio blocks, that is the appearance of a USF confirms that uplink only keeps a piece in the descending radio blocks.This is shown in Fig. 4 for example, and each downgoing line radio blocks comprises the USF that distributes up of the next one to the mobile subscriber here.
The present invention recognizes, the USF granularity of channel allocation can be changed into several pieces in succession from one each time, this means that the every appearance of the USF that is assigned with once will be moved user interpretation for distributing several radio blocks in succession to uplink.This technology has been dwindled the flexibility of dynamic allocation method slightly, still for other application benefit is provided.
Because on the circuit of reaching the standard grade, keeping a plurality of can begin anywhere; So preferably only broadcast suitable USF in the piece of first in a series of; And the not value of using of in remaining radio blocks, transmitting USF simultaneously carries out uplink so that prevent other users.The mobile subscriber who had received the distribution indication of several radio blocks in succession in the past will ignore it in the cycle that is limited the uplink distribution when receiving the USF of so not usefulness.For other purposes, for example for have way in some cases, such as in the transmission course of some control information, making the mobile subscriber keep not transmitting, on Packet Data Channel, untapped USF must be arranged.
USF occurs distributing for example 4 radio blocks in succession once for an ascending time slot, just might more freely on downgoing line, use remaining 3 radio blocks.This, has 3 in downgoing line, in the lobe of the mobile radio station (MS) that points to the current descending radio blocks that is receiving, to send in 4 radio blocks here the use of simplified self-adaptive aerial array widely at least.This distribution example is shown in Fig. 5 for example.In Fig. 5, illustrate one and show the USF that distributes to 4 radio blocks in succession mobile subscriber 1.This distribution is only represented in first radio blocks, and supposition 3 radio blocks then can be used for uplink.Follow these 3 downgoing line pieces in succession distributing to mobile subscriber 1 radio blocks back in expression to comprise untapped USF (Un), the latter shows that the mobile subscriber who receives it must not transmit on uplink.In the process of this time, downlink transfer needn't reach mobile subscriber 1 for the multiplexed purpose of uplink, can transmit lobe with aerial array on the contrary and point to the mobile subscriber who on downgoing line, receives.Sometimes this is certainly the same with the mobile subscriber that scheduling is transmitted on uplink.
The professional and technical personnel will appreciate that, the number of radio blocks in succession that is shown in Fig. 5 for example is as just example.In fact, can on uplink, dispatch the radio blocks in succession of any number.The meaning of USF defines when in initialization signaling and physical channel, distributing to the mobile subscriber.In an alternate embodiment of the present invention, the meaning of USF for, for example all mobile subscribers are identical in certain sub-district, also can broadcast the piece number that the mobile subscriber can be transmitted.USF itself also can be used for regulation and prepare the number of the radio blocks in succession of transmission.Under these circumstances, USF can require extra information symbol to pass to the mobile subscriber to the suitable number of piece.
Fig. 6 illustrates the situation according to exemplary communication of the present invention, and wherein 3 mobile subscribers share physical channels.Be noted that the control signaling is not shown among the figure, because this is to suitably understanding the present invention and unnecessary.
Shown that as tdma frame diagram among Fig. 6 mobile subscriber 1 for example receives USF (R1) on a time slot on the physical carrier of appointment, be illustrated in cycle of 4 continuous radio blocks subsequently and allow uplink.In GPRS, this is equivalent to 16 tdma frames subsequently.Represent mobile subscriber 1 USF to be included in mobile subscriber 3 downlink transfer.This descending radio blocks is to broadcast to all mobile subscribers that share same channel.Mobile subscriber 2 possibly also receive this downlink transfer and show do not have resource allocation to give the USF of uplink to mobile subscriber 2.In radio blocks subsequently, the uplink from mobile subscriber 1 appears among the tdma frame 8-11, and the downlink transfer to mobile subscriber 3 is then continuing simultaneously.In this descending radio blocks, to send,, mobile subscriber 1 distributed to uplink only because having known 4 radio blocks in succession to mobile subscriber 3.Being inserted in the downgoing line between untapped USF (Un), on uplink, transmit then to prevent other mobile subscriber.In the process of the electric piece of the up-link wireless of this last scheduling, tdma frame 19-22; Must be once more to all mobile subscriber's broadcast downstream transmission, the uplink of the piece in succession that receives another number with the mobile subscriber 2 (R2) that guarantees to represent among the USF and other users is distributed.Then, the said process of incident occurs once more.
Be noted that the mobile subscriber can have additional physical channel, for example, be distributed in the time slot on same or the different frequency, wherein can application class like, but not necessarily the same USF indication.A USF can represent any number radio blocks in succession, and in the initialization signaling, confirms this number to each mobile subscriber.
In Fig. 6, two antenna directions or lobe 610 and 612 have been described.These lobes illustrate and comprise that the downlink transfer of not using USF can only point to the mobile subscriber who on downgoing line, is receiving data, that is the mobile subscriber in above-mentioned example 3.This is possible in a system that realizes adaptive antenna array.Through the emission edge of signal energy built in certain angle intervals, perhaps only (or several) mobile subscriber is carried out power control, just can realize obviously reducing of interference level.
Although describe the present invention with regard to gprs system, the professional and technical personnel will be appreciated that, on other block data systems, also can similarly change uplink is multiplexed, and can realize similar benefit.Thereby, should not think that the present invention is only limited to the embodiment of above description, the present invention only comprises that by subsequently preparation its all grade confirms when claims of thing.
Claims (6)
1. the method for the message transmission of a mobile radio station that utilizes a selection of transfer resource control turnover; This method is used for the base station of a data packet radio communication system; Wherein the transmission of the uplink and downlink between mobile radio station and base station all is segmented into radio blocks; And, said method comprising the steps of by single transfer resource in some mobile radio station sharing base:
Selecting mobile radio station, wherein said USF indication can be at the number of the radio blocks of special time transmission, and authorizes selected mobile radio station to remove to transmit the radio blocks of specified number according to the USF that receives to some mobile radio station broadcast upstream Status Flag USF;
Specify some radio blocks that can send in succession by this selected mobile radio station at said special time for selected mobile radio station;
At said special time, in downlink transfer, send a permission of transmitting the radio blocks of specified number from said base station to selected mobile radio station;
Receive the radio blocks that is transmitted from selected mobile radio station; And
In selected mobile radio station transmission radio blocks, stop and utilize other mobile radio stations of transfer resource to transmit, accomplished up to selected mobile radio station till the transmission of radio blocks of specified number.
2. according to the method for claim 1; It is characterized in that; Said prevention utilizes the step that other mobile radio stations of transfer resource transmit to be included in during the selected mobile radio station transmission radio blocks; Send at least one untapped USF by said base station and give other mobile radio stations, said untapped USF stops and utilizes other mobile radio stations of transfer resource to transmit, and has accomplished up to selected mobile radio station till the transmission of radio blocks of specified number.
3. according to the method for claim 1; It is characterized in that; Said base station has an array antenna; Be used at least one grouping that transmits and receive data, and said method is further comprising the steps of: in first antenna lobe, receive some radio blocks, simultaneously packet is sent to another mobile radio station of the antenna lobe that is arranged in second non-interference by selected mobile radio station transmission at a plurality of antenna lobes.
4. one kind from the mobile radio station the selected method to control base station transmits information; This method is used for the mobile radio station of a packet radio communication system; Wherein the transmission of the uplink and downlink between mobile radio station and base station all is segmented into radio blocks; And, said method comprising the steps of by single transfer resource in some mobile radio station sharing base:
Receive USF from said control base station, wherein said USF indication can be at the number of the radio blocks of special time transmission, and authorizes selected mobile radio station to remove to transmit the radio blocks of specified number according to the USF that receives, and said number is more than one;
Receive the permission of the radio blocks of a specified number of transmission from said control base station; And
This transmission permission is received in response, transmits the radio blocks of specified number.
5. according to the method for claim 4, it is characterized in that, further comprising the steps of: as when selected mobile radio station is transmitting the radio blocks of specified number, to ignore any untapped USF that receives from the base station by selected mobile radio station.
6. according to the method for claim 4, it is characterized in that, after the radio blocks that transmits specified number, further comprising the steps of:
Confirm that by selected mobile radio station downlink transfer in succession is to comprise a untapped USF, still comprise and be addressed to selected mobile radio station and transmit an extra USF of the radio blocks of specified number to specify this selected mobile radio station;
If downlink transfer in succession comprises untapped USF, then stop transfer of data; And
If downlink transfer in succession comprises and is addressed to selected mobile radio station and transmits the extra USF of the radio blocks of specified number to specify this mobile radio station, then transmit the radio blocks of specified number.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7468898P | 1998-02-13 | 1998-02-13 | |
| US60/074688 | 1998-02-13 | ||
| US09/201777 | 1998-12-01 | ||
| US09/201,777 US6501745B1 (en) | 1998-02-13 | 1998-12-01 | Method for variable block scheduling indication by an uplink state flag in a packet data communication system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998028711A Division CN100348058C (en) | 1998-02-13 | 1999-01-29 | Method for variable block scheduling indication by an uplink state flag in a packet data communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101043458A CN101043458A (en) | 2007-09-26 |
| CN101043458B true CN101043458B (en) | 2012-04-25 |
Family
ID=32028535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100936064A Expired - Lifetime CN101043458B (en) | 1998-02-13 | 1999-01-29 | Method for variable block scheduling indication by an uplink state flag in a packet data communication system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101043458B (en) |
| RU (1) | RU2216100C2 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8098667B2 (en) | 2005-06-16 | 2012-01-17 | Qualcomm Incorporated | Methods and apparatus for efficient providing of scheduling information |
| US8654712B2 (en) | 2005-06-16 | 2014-02-18 | Qualcomm Incorporated | OFDMA reverse link scheduling |
| EP1943777B1 (en) | 2005-10-31 | 2016-07-20 | LG Electronics Inc. | Method for processing control information in a wireless mobile communication system |
| EP1949562B1 (en) | 2005-10-31 | 2016-11-16 | LG Electronics Inc. | Method of transmitting a measurement report in a wireless mobile communications system |
| EP1949547B1 (en) | 2005-10-31 | 2019-08-07 | LG Electronics, Inc. | Data receiving method for mobile communication terminal |
| BRPI0617783A2 (en) | 2005-10-31 | 2011-08-09 | Lg Electronics Inc | method of transmitting and receiving radio access information in a wireless mobile communications system |
| US8830945B2 (en) | 2005-10-31 | 2014-09-09 | Lg Electronics Inc. | Method for processing control information in a wireless mobile communication system |
| CN104768209B (en) | 2006-03-24 | 2019-05-28 | 交互数字技术公司 | Method, WTRU and the node B executed by WTRU |
| EP2421318B1 (en) * | 2006-08-21 | 2013-05-01 | InterDigital Technology Corporation | Method and apparatus for transmitting scheduling information in a wireless communication system |
| JP4703513B2 (en) * | 2006-08-22 | 2011-06-15 | 株式会社エヌ・ティ・ティ・ドコモ | Radio base station and method used in mobile communication system |
| JP4519817B2 (en) * | 2006-08-22 | 2010-08-04 | 株式会社エヌ・ティ・ティ・ドコモ | Base station and mobile station |
| AU2008210980A1 (en) | 2007-01-30 | 2008-08-07 | Interdigital Technology Corporation | Implicit DRX cycle length adjustment control in LTE_active mode |
| CN101242668B (en) * | 2008-03-18 | 2013-06-05 | 中兴通讯股份有限公司 | A method for indicating corresponding uplink sub-frame of uplink resource indication signaling |
| RU2470494C2 (en) * | 2008-04-22 | 2012-12-20 | Нтт Досомо, Инк. | Method of mobile communication, radio communication mobile station and base station |
| JP4511622B2 (en) * | 2008-04-22 | 2010-07-28 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication method, mobile station and radio base station |
| RU2503154C2 (en) * | 2008-04-22 | 2013-12-27 | Нтт Докомо, Инк. | Mobile communication method, mobile station and radio base station |
| US7995597B2 (en) * | 2008-10-14 | 2011-08-09 | Nortel Networks Limited | Method and system for weighted fair queuing |
| PL3251242T3 (en) * | 2015-01-27 | 2019-03-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmitting device, receiving device, controlling node, and methods therein, for transmitting a block to the receiving device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587980A2 (en) * | 1992-09-18 | 1994-03-23 | Roke Manor Research Limited | Improvements in or relating to cellular mobile radio systems |
| US5420864A (en) * | 1992-10-26 | 1995-05-30 | Telefonaktiebolaget Lm Ericsson | Method of effecting random access in a mobile radio system |
| WO1997033389A1 (en) * | 1996-03-07 | 1997-09-12 | The Trustees Of Columbia University In The City Of New York | Media access protocol for packet access within a radio cell |
| WO1998037706A2 (en) * | 1997-02-21 | 1998-08-27 | Motorola Inc. | Method and apparatus for allocating spectral resources in a wireless communication system |
-
1999
- 1999-01-29 RU RU2000123555A patent/RU2216100C2/en active
- 1999-01-29 CN CN2007100936064A patent/CN101043458B/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587980A2 (en) * | 1992-09-18 | 1994-03-23 | Roke Manor Research Limited | Improvements in or relating to cellular mobile radio systems |
| US5420864A (en) * | 1992-10-26 | 1995-05-30 | Telefonaktiebolaget Lm Ericsson | Method of effecting random access in a mobile radio system |
| WO1997033389A1 (en) * | 1996-03-07 | 1997-09-12 | The Trustees Of Columbia University In The City Of New York | Media access protocol for packet access within a radio cell |
| WO1998037706A2 (en) * | 1997-02-21 | 1998-08-27 | Motorola Inc. | Method and apparatus for allocating spectral resources in a wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101043458A (en) | 2007-09-26 |
| RU2216100C2 (en) | 2003-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100348058C (en) | Method for variable block scheduling indication by an uplink state flag in a packet data communication system | |
| CN101043458B (en) | Method for variable block scheduling indication by an uplink state flag in a packet data communication system | |
| CA2276058C (en) | Method and apparatus for providing high speed services using a wireless communications system | |
| EP0781495B1 (en) | Transmission of control messages in digital telephony | |
| CN101772178B (en) | Method for transferring service data and base station and user device using same | |
| KR100779472B1 (en) | Method and system for organizing the cells of a wireless communication system and allocating resources to provide multimedia broadcast services | |
| EP0622925B1 (en) | A multiaccess scheme for mobile integrated local area networks | |
| CN101951600B (en) | Wireless communication systems | |
| JP4982549B2 (en) | Channel switching to support multimedia broadcast and multicast services | |
| CN1534899B (en) | Method of proceeding flow control to HSDPA and HSUPA | |
| RU2004138290A (en) | DATA TRANSFER FOR MULTIMEDIA BROADCASTING / MULTI-ADDRESS SERVICES | |
| CA2300970A1 (en) | Packet data communications scheduling in a spread spectrum communications system | |
| CN100486386C (en) | Method for sending permission assignment in telecommunications system | |
| CN100365948C (en) | UTRA TDD time slots allocation | |
| CN101155395B (en) | Band width distribution method, system and device based on wireless system | |
| US20100135196A1 (en) | Communication systems and methods with resource management for overlapping multicast and broadcast service zones | |
| MXPA00007219A (en) | Method for variable block scheduling indication by an uplink state flag in a packet data communication system | |
| Huang et al. | Minislot reservation MAC protocol with co-operative channel (MRMA/COCH) for wireless packet networks | |
| Alvarez-Campana et al. | Efficient support of circuit-mode and packet-mode services in micro-VSAT networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |