CN1316170A - Method for transmitting voice information in radio communication system - Google Patents
Method for transmitting voice information in radio communication system Download PDFInfo
- Publication number
- CN1316170A CN1316170A CN 99810280 CN99810280A CN1316170A CN 1316170 A CN1316170 A CN 1316170A CN 99810280 CN99810280 CN 99810280 CN 99810280 A CN99810280 A CN 99810280A CN 1316170 A CN1316170 A CN 1316170A
- Authority
- CN
- China
- Prior art keywords
- time slot
- travelling carriage
- data
- radio block
- data sequences
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2618—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid code-time division multiple access [CDMA-TDMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0003—Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a radio interface between a base station and a mobile station with broad-band channels that are sub-divided into time slots for the transmission of voice information. At least two data sequences are sent in one time slot. In a first group of time slots, both data sequences are allocated to a mobile station. In a second group of time slots, both data sequences are allocated to different mobile stations. Finer resource-unit granularity can be obtained by using several data sequences for one time slot. Hybrid-type allocation of one or two data sequences per time slot to a mobile station results in greater flexibility with respect to data throughput rates that can be allocated to a mobile station. This means that a greater number of spread CDMA subscriber-separation voice connections can be supported in TDD radiotelephone systems with broad-band channels.
Description
The present invention relates to a kind of in wireless communication system, the method for transmitting voice information in mobile radio system especially with TDD user's partition method.
In mobile communication system, message (for example: voice, image information or other data) is transmitted by wave point by electromagnetic wave.Described wave point relates to communicating to connect between base station and the travelling carriage, wherein, also can supply with the radio station of fixed-site, to replace described travelling carriage.At this, electromagenetic wave radiation produces by carrier frequency, and this carrier frequency is positioned within the frequency band of setting for corresponding system.For wireless communication system in the future, such as UMTS (Universal Mobile Telecommunications System) or other third generation system, assigned frequency is positioned at the frequency band of about 2000MHz.
DE 19817771 and DE 19820736 once disclosed some wireless communication systems with TDD (time division duplex) user partition method, and they are optimized in third generation mobile radio system, to be used for the data service of two-forty.For example the high speed data transmission service that is used for video and multimedia application has been brought following consequence, promptly needs to select for use broad-band channel and such as 8 extended codes of every time slot of 5MHz.Just formed thus be about 27.6 kilobits/second, assignable least resource unit, the size of this Resource Unit is by fixed very greatly.
According to the present invention, thisly, the wireless communication system of high speed data transmission service optimization is used for transmitting voice information for also can being modified.To this, provide the described method of a kind of characteristic as claimed in claim 1, it also can realize a very high power system capacity for transmitting voice information.Expansion scheme of the present invention is provided by dependent claims.
According to the present invention, for the wave point between base station and the travelling carriage provides the channel broadband, that be divided into time slot, to be used for transmitting voice information.In a time slot, send two data sequences at least, wherein, in first group of time slot, give a travelling carriage two data sequence allocation, and in second group of time slot, give different travelling carriages two data sequence allocation.Use a plurality of data sequences by every time slot, Resource Unit has just formed meticulousr corpuscular property, and this Resource Unit just is used to send the resource request signaling in DE 19817771.Distribute the mixed form of one or two data sequence by every time slot to travelling carriage, can realize greater flexibility aspect the data rate of travelling carriage distributing to.Can support a large amount of, quality to close the voice communication that symbol requires thus.This has increased the power system capacity of voice communication.
Method of the present invention especially preferably is applied in the wireless communication system, has adopted the TDD customer separating method in the described system and/or different extended codes has been distributed to user's partition method of the travelling carriage of time slot.
Preferably, on descending and up direction, adopt different distribution methods.On the one hand, on down direction, send radio block, and described intermediate sequence is inserted between two data sequences with intermediate sequence.So data sequence can be assigned to a travelling carriage or two different travelling carriages in the front and back of intermediate sequence.On the other hand, on up direction, every time slot sends a long radio block from a travelling carriage, or send the radio block of the time quadrature of two weak points from two different travelling carriages, wherein, described long radio block is represented two data sequences, and each short radio block is only represented a data sequence.Owing to can not synchronously send common intermediate sequence under the situation of two different transmitters, each short radio block all is made up of an intermediate sequence and data division.On meaning of the present invention, two data of short radio block have partly formed a data sequence.By this data sequence transmission that is suitable for descending and up direction, can simplify channel estimating and Data Detection.
In order to support to have the voice transfer of continuous information stream, time average ground distributes travelling carriage between half and a Resource Unit, and wherein for each frame, a Resource Unit is made of bandwidth, an extended code and a time slot.Distribute one or two data sequence, the adjustable sub-fraction that also can distribute a Resource Unit by in a time slot, mixing ground.At this, by do not have for each travelling carriage is changed to data sequence wheel, one or two, and come described sub-fraction is adjusted by rotational cycle.A kind of particularly significant sub-fraction is 2/3 of a Resource Unit, also is that for example three travelling carriages are divided two Resource Units equally.So, in per the 3rd frame, be time slot of travelling carriage distribution in view of the above, and in two of three frames, distribute a time slot that only has a data sequence with two data sequences.
Elaborate embodiments of the invention by accompanying drawing below.
Among the figure:
Fig. 1 shows the block diagram of mobile radio system,
Fig. 2 shows the frame structure sketch of TDD transmission method,
Fig. 3 shows the sketch of long radio block,
Fig. 4 shows the sketch of short radio block,
Fig. 5 shows the transmission sketch on up direction, and
Fig. 6 shows the transmission sketch on down direction.
As the embodiment of wireless communication system, mobile radio system shown in Figure 1 is made up of many mobile station MSC, and these mobile stations are knotted mutually, maybe can visit fixed network PSTN.In addition, described mobile station MSC always is used to distribute the equipment RNM of wireless technology resource to link to each other with at least one.Each this equipment RNM can communicate with at least one base station BS again.This base station BS can be by wave point with other radio station such as mobile station MS or other mobile or fixed terminal equipment foundation communication.At least form a wireless area by each base station BS.
Fig. 1 shows the V that communicates to connect that is used for transmitting useful information and signaling information between mobile station MS and base station BS for example
1, V
2, V
3Operation and Maintenance Center OMC is that mobile radio system or its part realize control and maintenance function.In other wireless communication system that the present invention can adopt, especially, also can carry the functional of this structure for user access networks with wireless user's end.
The frame structure of wireless transmission as can be seen from Figure 2.According to TDMA component (time division multiple access), such as bandwidth is that the wideband frequency range of B=5MHz is prescribed and is divided into the time slot ts that a plurality of time delays equate, for example 16 time slot ts0 to ts15.The frequency range that frequency band extended is B.Part time slot ts0～ts8 is used to down direction DL, and a part of time slot ts9～ts15 is used to up direction UL.In the middle of it is switching point SP.In this TDD transmission method, the frequency band that is used for up direction UL is consistent with the frequency band that is used for down direction DL.For other carrier frequency repeats identical structure.
The information of a plurality of communications is transmitted in time slot with the form of radio block.Data d utilizes a kind of fine structure, also is that extended code c communicates exclusively expansion, like this, for example can isolate n communication by this CDMA component the recipient.At this, Resource Unit, also be that physical channel K1 is made of frequency band B, time slot ts and extended code c.The effect that each symbol of data d is expanded is, at symbol time delay T
SgmQ time delay of interior transmission is T
ChipChip.At this, Q chip formed the special-purpose extended code c of communication.
In bandwidth frequency scope B, be divided in succession time slot ts according to frame structure.So 16 time slot ts are combined into a frame fr.
The parametric optimization ground that wave point adopted is:
Spreading rate: 4.096Mcps
Frame time delay: 10ms
Number of timeslots: 16
Time slot time delay: 625 μ s
Spreading factor: 16
Modulation system: QPSK
Bandwidth: 5MHz
Frequency repetition values: 1
These parameters can realize coordination as well as possible with the FDD method (Frequency Division Duplexing (FDD)) of the mobile wireless third generation.
The present invention has adopted two kinds of radio block types.According to Fig. 3, the long radio block MB that fills up whole time slot ts is made up of intermediate sequence MA and two data sequence D1, D2 that surround it.Be connected to a guard time SP in addition, be used for balanced delay inequality.
Equally, also be configured with short radio block HB, but it only needs the half the time of time slot ts approximately.According to Fig. 4, the first short radio block HB has two data division D1 ' and D1 that form the first data sequence D1 "; the second short radio block HB has two data division D2 ' and D2 that form the second data sequence D2 ", be time quadrature with described second radio block when described first short radio block sends in time slot.Two short radio block HB are sent by different radio station.
According to the predefined parameter of wave point, Resource Unit is the physical channel K1 with 27.6 kilobits/second data rates.To this, according to the quantity of physical channel, number of users utilized this minimum data rate to limit originally.According to the present invention, can adjust a less data rate for voice transfer as follows, promptly the time is less than one Resource Unit for mobile station MS distributes fifty-fifty.Opposite with transmitted in packets, although simulated continuous data flow, each frame is not to be the identical data rate of mobile station MS employing regularly, but the data rate that changes.
On up direction UL, send radio block to base station BS from different mobile station MS 1, MS2, MS3.According to Fig. 5, time slot ts0, ts1 are used to three voice communications of mobile station MS 1, MS2, MS3.In the first time slot ts0, send a long radio block from three mobile station MSs 1, one of MS2, MS3 by turns, be that each mobile station MS 1, MS2, MS3 distribute 1/3 Resource Unit thus.In the second time slot ts1, send two short radio block HB by two mobile station MSs 1 that in the first time slot ts0, do not send, MS2, MS3.Thus, utilize the short radio block HB in two frame fr1, for mobile station MS 1, MS2, MS3 distribute other 1/3 Resource Unit, to supply with its use.According to shown in Figure 5, length radio block MB, HB utilize different extended code c1, c2 to expand.But this is not the mandatory condition that separates by the time of being undertaken by time slot ts0, ts1.
In each time slot fr, send a part of voice messaging, can make the expense of intermediate storage become very little thus.In time slot ts, should not use two kinds of radio block types simultaneously, so that make the expense of analysis, the especially analysis cost in channel estimating keep minimum the recipient.
So, first mobile station MS 1 for example uses a long radio block MB and two data sequence D1, D2 in the first frame fr1, and in ensuing two frame fr2, fr3, use a short radio block HB respectively, and use two the data part D1 ' and the D1 of first sequence D 1 thus ".Therefore this mobile station MS 1 can use the data rate of 18.4 kilobits/second.
On down direction DL shown in Figure 6, base station BS sends to a plurality of mobile station MSs 1, MS2, MS3.Because only adopted long radio block HB,, promptly only using a time slot ts0 and two different extended code c1, c2 on the meaning by turns so take following way to be fine but not necessarily.
Utilize the first extended code c1, the base station is that three mobile station MSs 1, MS2, MS3 send two data sequence D 1 and D2 by turns, and time average ground provides 1/3 Resource Unit among three mobile station MSs 1, MS2, the MS3 each again thus.The second long radio block MB utilizes the second extended code c2 to expand when sending, and wherein, in the first frame fr1, second mobile station MS 2 is analyzed the first data sequence D1, and the 3rd mobile station MS 3 is then analyzed the second data sequence D2.And in view of the above through frame fr1, fr2, fr3 ... rotate, provide other 1/3 Resource Unit for each mobile station MS 1, MS2, MS3 thus.
Show three mobile station MSs 1 in the present embodiment, how MS2, MS3 divide two Resource Units equally.But, within the scope of the invention, also can adjust other sub-fraction by corresponding order by turns.Equally, under the situation of not using different extended code c1, c2,, also can utilize identical extended code c1 to realize described rotating in case of necessity by in different time-gap ts0, ts1, sending.
Claims (7)
1. the method for transmitting voice information in wireless communication system, wherein,
For the wave point between base station (BS) and the travelling carriage (MS) provides the channel broadband, that be divided into time slot (ts), being used for transmitting voice information,
In a time slot (ts), send two data sequences at least, wherein, in first group of time slot (ts1) two data sequence (D1, D2) distribute to a travelling carriage (MS1), and in second group of time slot (ts2) two data sequences (D1, D2) distribute to different travelling carriages (MS2, MS3).
2. the method for claim 1, wherein
Part frame slot (ts) is used for up direction (UL) by the TDD customer separating method, and another part time slot (ts) is used for down direction (DL).
3. the method according to any one of the preceding claims, wherein,
By being distributed to the travelling carriage (MS) of time slot (ts), different extended code (c) realizes that additionally the user separates.
4. the method according to any one of the preceding claims, wherein,
Go up to send radio block at down direction (DL) with intermediate sequence (MA), described intermediate sequence be inserted in described two data sequences (D1, D2) between.
5. the method according to any one of the preceding claims, wherein,
On up direction (UL), every time slot (ts) sends a long radio block (MB) from a travelling carriage (MS1), or from two different travelling carriage (MS2, MS3) radio block (HB) of the time quadrature of two weak points of transmission, wherein, and two data sequences of described long radio block (MB) expression (D1, D2), and each short radio block (HB) only represent a data sequence (D1, D2).
6. the method according to any one of the preceding claims, wherein,
For each frame, Resource Unit is made of bandwidth, extended code and a time slot (ts), and, distribute one or two data sequence (D1 by in a time slot, mixing ground, D2), time average ground distributes travelling carriage (MS) between half and a Resource Unit.
7. method as claimed in claim 6, wherein,
Per the 3rd frame is that travelling carriage (MS) distributes one to have two data sequences (D1, time slot D2) (ts1), and only have a data sequence (D1, time slot D2) (ts2) for described travelling carriage distributes in two of three frames.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19839805.0 | 1998-09-01 | ||
| DE19839805 | 1998-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1316170A true CN1316170A (en) | 2001-10-03 |
Family
ID=7879426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99810280 Pending CN1316170A (en) | 1998-09-01 | 1999-09-01 | Method for transmitting voice information in radio communication system |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1108342A1 (en) |
| CN (1) | CN1316170A (en) |
| AU (1) | AU1029700A (en) |
| WO (1) | WO2000013446A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426800C (en) * | 2006-07-20 | 2008-10-15 | 华为技术有限公司 | Bandwidth resource distribution method |
| CN100433856C (en) * | 2005-07-22 | 2008-11-12 | 华为技术有限公司 | Cluster multi call connecting method |
| CN100455131C (en) * | 2006-08-18 | 2009-01-21 | 华为技术有限公司 | Band-width resource distribution |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001261326A1 (en) * | 2000-05-09 | 2001-11-20 | Qualcomm Incorporated | A method and an apparatus for providing both voice services and data services ina high data rate wireless communication system |
| DE60134484D1 (en) | 2000-10-24 | 2008-07-31 | Nortel Networks Ltd | DIVIDED CHANNEL STRUCTURE, ARQ SYSTEMS AND METHODS |
| GB0122674D0 (en) * | 2001-09-20 | 2001-11-14 | Marconi Applied Techn Ltd | Data exchange protocol |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5589086A (en) * | 1986-03-25 | 1987-10-20 | Motorola, Inc. | Method and apparatus for controlling a tdm communication device |
| NZ239283A (en) * | 1990-08-23 | 1994-09-27 | Ericsson Telefon Ab L M | Mobile cellular radio: handoff between half rate and full rate channels according to estimated received signal quality |
| GB2318705B (en) * | 1996-10-22 | 2001-05-02 | Motorola Ltd | Mobile telephone systems |
| DE69726697T2 (en) * | 1996-10-25 | 2004-10-21 | Nokia Corp | Radio capacity control procedure |
-
1999
- 1999-09-01 EP EP99953645A patent/EP1108342A1/en not_active Withdrawn
- 1999-09-01 AU AU10297/00A patent/AU1029700A/en not_active Abandoned
- 1999-09-01 WO PCT/DE1999/002729 patent/WO2000013446A1/en not_active Application Discontinuation
- 1999-09-01 CN CN 99810280 patent/CN1316170A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100433856C (en) * | 2005-07-22 | 2008-11-12 | 华为技术有限公司 | Cluster multi call connecting method |
| CN100426800C (en) * | 2006-07-20 | 2008-10-15 | 华为技术有限公司 | Bandwidth resource distribution method |
| CN100455131C (en) * | 2006-08-18 | 2009-01-21 | 华为技术有限公司 | Band-width resource distribution |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1029700A (en) | 2000-03-21 |
| WO2000013446A1 (en) | 2000-03-09 |
| EP1108342A1 (en) | 2001-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100571904B1 (en) | Method for variable block scheduling indication by an uplink state flag in a packet data communicaton system | |
| US8218562B2 (en) | Fast switching of forward link in wireless system | |
| US7227850B2 (en) | Cellular radio communication system with frequency reuse | |
| EP1058977B1 (en) | Telecommunications system with wireless code and time-division multiplex based telecommunication | |
| EP1249092B1 (en) | Adaptive frame structures for hybrid cdma / tdma system | |
| US8755360B2 (en) | Method and apparatus for a spectrally compliant cellular communication system | |
| CN1179508C (en) | Method and radio station for transmitting data | |
| CN100395968C (en) | Method for transmitting high-speed data service based on time-division duplex mode | |
| CN1295741A (en) | Method for data transmission in cellular telecommunication system | |
| KR101250299B1 (en) | Method and apparatus for a spectrally compliant cellular communication system | |
| JP2002524964A (en) | Method and radio communication system for synchronization of subscriber stations | |
| CN1316170A (en) | Method for transmitting voice information in radio communication system | |
| WO2002067604A1 (en) | Continuous allocation of real-time traffic in a telecommunication system | |
| CN1143585C (en) | Process and base station for transmitting organisation information in radiocommunication system | |
| KR20040000499A (en) | Method for allocating channels in a radio communications system | |
| CA2345821C (en) | Method for matching data rates | |
| CN1627663A (en) | Method sad equipment for transferring signal in wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |