CN1716816B - Physics channel distribution method in multiple carrier time division synchronous CDMA access system - Google Patents
Physics channel distribution method in multiple carrier time division synchronous CDMA access system Download PDFInfo
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- CN1716816B CN1716816B CN 200410062503 CN200410062503A CN1716816B CN 1716816 B CN1716816 B CN 1716816B CN 200410062503 CN200410062503 CN 200410062503 CN 200410062503 A CN200410062503 A CN 200410062503A CN 1716816 B CN1716816 B CN 1716816B
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Abstract
The present invention provides a physical channel allocation method in the connection system of multi-channel carrier time division and one synchronous code-dividing multi-addresses, wherein one node B is allocated with more than one frequency f1, f2, ...., fn. As for the said node B, the principal public control physical channel and down-link synchronous channel are existing in the same carrier frequency and are only existing in one carrier frequency among many carrier frequencies which are allocated on one node B. Apart from the mentioned principal public control physical channel and down-link synchronous channel, other mentioned physical channels are existing in one or more than one carrier frequencies among carrier frequencies which are allocated on the mentioned one node B. By making use of the above invented method, the superiority of the multi-channel carriers which are allocated on one node B in the multi-channel carrier time division and one synchronous code-dividing multi-addresses system will be fully utilized. The overall system designed on the mentioned multi-channel carrier frequencies will be optimized.
Description
(1) technical field
The present invention relates to a kind of Optimization Design of wireless communication system, more specifically to the physical channel allocating method in a kind of multicarrier (Multi-carrier) Time Division-Synchronous Code Division Multiple Access access (Time Division-Synchronous Code Division Multiple Access) system, can improve the system effectiveness of multiple carrier time division synchronous CDMA access system, the design of optimization system.
(2) background technology
Insert in (Time Division-Synchronous Code Division Multiple Access) 3-G (Generation Three mobile communication system) at Time Division-Synchronous Code Division Multiple Access, can be a plurality of carrier frequencies (Carrier Frequency) in a Node B (Node B) the configuration-system working frequency range (OperatingFrequency Band) in the system, in the overlay area of described Node B, to support more user terminal (User Equipment).The above-mentioned time-division-synchronous CDMA access system that is a Node B disposes a plurality of carrier frequencies in the system works frequency range is called multiple carrier time division synchronous CDMA access system.
In a kind of implementation method of multiple carrier time division synchronous CDMA access system, for a Node B, described at each is on the carrier frequency of its configuration, the processing of wireless signal and system operation are independent fully: described at each is on the carrier frequency of its configuration, all has independently main Common Control Physical Channel (P-CCPCH), less important Common Control Physical Channel (S-CCPCH), uplink synchronous channel (UpPCH), descending synchronous signal channel (DwPCH), insert physical channel (FPACH) fast, Physical Random Access Channel (PRACH), uplink special physical channel (U-DPCH), downward special physical channel (D-DPCH), up shared physical channel (PUSCH), Physical Downlink Shared Channel (PDSCH) and Page Indication Channel (PICH); Simultaneously, on each described carrier frequency, be the different descending synchronous signal channel sign indicating number (SYNC-DL Code) of described independent descending synchronous signal channel configuration for the Node B configuration; And according to each described different descending synchronous signal channel sign indicating number, on each described carrier frequency, dispose different basic training sequences sign indicating number (Basic MidambleCode) and the scrambler (Scrambling Code) related respectively with described basic training sequences sign indicating number for the Node B configuration.
In above-mentioned multiple carrier time division synchronous CDMA access system, though for a Node B in the system has disposed the interior a plurality of carrier frequencies of system works frequency range, but because the processing and the system operation of wireless signal are independent mutually on each described carrier frequency that disposes for Node B, brought the redundancy of part system information, cause a part of resource waste, and when carrying out dynamic channel allocation (Dynamic Channel Allocation), because on each described carrier frequency for the Node B configuration, all there is independently physical channel separately, thereby the dynamic assignment of physical channel is independently carried out on each described carrier wave, do not fully utilize the system interference feature on the described different carrier frequencies, thereby and underuse in the multiple carrier time division synchronous CDMA access system advantage of a plurality of carrier waves of a Node B configuration, with the design of global optimization system on described a plurality of carrier frequencies.
Detailed description for said system working frequency range, carrier frequency, physical channel, spread spectrum and modulated process and dynamic channel allocation etc. sees also Time Division-Synchronous Code Division Multiple Access access 3-G (Generation Three mobile communication system) standard 3GPP TS 25.105,25.221,25.223,25.224,25.433 and 3GPP TR 25.922 (download of document is provided among the www.3gpp.org of 3GPP website).
(3) summary of the invention
The object of the present invention is to provide the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system, with respect to the above-mentioned method of on each spendable carrier frequency of a Node B, independently carrying out the physical channel distribution, can improve the system effectiveness of multiple carrier time division synchronous CDMA access system, the design of optimization system.
Above-mentioned goal of the invention realizes by following method of the present invention: the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system, wherein dispose more than one carrier frequency f for a Node B of described multiple carrier time division synchronous CDMA access system
1, f
2..., f
nN＞1, described physical channel comprises main Common Control Physical Channel, less important Common Control Physical Channel, uplink synchronous channel, descending synchronous signal channel, insert physical channel fast, Physical Random Access Channel, uplink special physical channel, downward special physical channel, up shared physical channel, Physical Downlink Shared Channel and Page Indication Channel, it is characterized in that: for a described Node B, described main Common Control Physical Channel exists on identical carrier frequency with descending synchronous signal channel, and only described be to exist on the carrier frequency in the carrier frequency of Node B configuration; Remove outside described main Common Control Physical Channel and the descending synchronous signal channel, other described physical channels described be to exist in the carrier frequency of Node B configuration one or the more than one carrier frequency.
According to an aspect of the present invention, in described Node B, described main Common Control Physical Channel and descending synchronous signal channel all only described be a fixed carrier frequency f in the carrier frequency of a Node B configuration
1Last existence; The carrier frequency that has described main Common Control Physical Channel and descending synchronous signal channel is by described multiple carrier time division synchronous CDMA access system default setting; Remove outside the carrier frequency that has described main Common Control Physical Channel and descending synchronous signal channel, described at all the other is on the carrier frequency of Node B configuration, transmission content in the descending pilot frequency time slot is empty, and the transmission content in the time slot 0 is provided with by system operation and maintenance channel.
According to another aspect of the present invention,, remove outside described main Common Control Physical Channel and the descending synchronous signal channel for described Node B, other described physical channels described be independent allocation on the carrier frequency of Node B configuration; And for a described Node B, described uplink and downlink DPCH is by dynamic channel assignment method dynamic assignment on the carrier frequency that is its configuration; When described less important Common Control Physical Channel has the beacon characteristic, it is distributed on that carrier frequency of main Common Control Physical Channel and descending synchronous signal channel existence; Remove outside described main Common Control Physical Channel, descending synchronous signal channel and the uplink and downlink DPCH, the assignment information of other described physical channels is broadcasted in the main Common Control Physical Channel of described Node B.
According to another aspect of the present invention, exist on the carrier frequency of described physical channel, use an identical scrambler described other physical channel scramblings of removing outside uplink synchronous channel and the descending synchronous signal channel at all; Remove described uplink synchronous channel, descending synchronous signal channel and have outside the physical channel of beacon characteristic the identical basic training sequences code word of training sequence part use in other described physical channels.
According to a further aspect of the invention, described Node B is supported sector s
1, s
2..., s
m, m＞1, each sector configuration of described Node B more than one carrier frequency f
1, f
2..., f
n, n＞1, for the sector of a described Node B, described main Common Control Physical Channel exists on identical carrier frequency with descending synchronous signal channel, and only described be to exist on the carrier frequency in the carrier frequency of a sector configuration; Remove outside described main Common Control Physical Channel and the descending synchronous signal channel, other described physical channels described be to exist in the carrier frequency of a sector configuration one or the more than one carrier frequency.
(4) description of drawings
Purpose of the present invention and feature will be elaborated in conjunction with the accompanying drawings by embodiment, and these embodiment are illustrative, not have restricted.
Fig. 1 is illustrated in existing Time Division-Synchronous Code Division Multiple Access and inserts the system frame structure that defines among the 3-G (Generation Three mobile communication system) standard UTRA 1.28McpsTDD.
Fig. 2 represents to use a kind of multiple carrier time division synchronous CDMA access system of the inventive method.
(5) specific embodiment
Method of the present invention is used for a kind of multiple carrier time division synchronous CDMA access system.
Insert 3-G (Generation Three mobile communication system) standard UTRA 1.28Mcps TDD according to Time Division-Synchronous Code Division Multiple Access, the chip of described multiple carrier time division synchronous CDMA access system (Chip) speed is 1.28MHz, channel spacing (Channel Spacing) is 1.6MHz, and the system works frequency range is 2GHz; The physical channel that is provided with in the described multiple carrier time division synchronous CDMA access system has main Common Control Physical Channel, less important Common Control Physical Channel, uplink synchronous channel, descending synchronous signal channel, inserts physical channel, Physical Random Access Channel, uplink special physical channel, downward special physical channel, up shared physical channel, Physical Downlink Shared Channel and Page Indication Channel fast; Each described physical channel is data bursts (Burst) in described multiple carrier time division synchronous CDMA access system, in the specific time slot of a frame, transmit, as shown in Figure 1, wherein the frame of each described multiple carrier time division synchronous CDMA access system (Frame) is made up of two subframes (Subframe), each described subframe is by 7 time slots (Time Slot) and descending pilot frequency time slot (DwPTS), uplink pilot time slot (UpPTS) and protection (GP) are at interval formed, main Common Control Physical Channel transmits in the 1st time slot (time slot 0) of every subframe, descending synchronous signal channel transmits in the descending pilot frequency time slot of every subframe, uplink synchronous channel transmits in the uplink pilot time slot of every subframe, and all the other described physical channels can transmit in certain time slot in 7 time slots of described every subframe; In described multiple carrier time division synchronous CDMA access system, having 32 descending synchronous signal channel sign indicating numbers uses for descending synchronous signal channel, each described descending synchronous signal channel sign indicating number is corresponding to one group of basic training sequences sign indicating number, have the basic training sequences sign indicating number of 4 non-overlapping copies (Overlapping) in described one group of basic training sequences sign indicating number, thereby in described multiple carrier time division synchronous CDMA access system, having the basic training sequences sign indicating number of 128 non-overlapping copies, the training sequence part (Midamble Part) that is removed in all the other physical channels outside descending synchronous signal channel and the uplink synchronous channel is used; Each described basic training sequences sign indicating number is corresponding to a scrambler, is used for removing data division (DataParts) scrambling behind all the other the physical channel spread spectrums outside descending synchronous signal channel and the uplink synchronous channel.
Be 4 carrier frequencies in the Node B configuration-system working frequency range in the described multiple carrier time division synchronous CDMA access system, each described carrier frequency for the Node B configuration all is required to be the integral multiple (Channel Raster) of 200KHz.Described 4 carrier frequencies for the Node B configuration are designated as f respectively
1, f
2, f
3And f
4, as shown in Figure 2; The method according to this invention, described main Common Control Physical Channel exists on identical carrier frequency with descending synchronous signal channel, and only described be to exist on the carrier frequency in the carrier frequency of Node B configuration, for example only at a fixing carrier frequency f
1Last existence, the carrier frequency of described main Common Control Physical Channel and descending synchronous signal channel is by described multiple carrier time division synchronous CDMA access system default setting; Remove the carrier frequency f that has described main Common Control Physical Channel and descending synchronous signal channel
1Outside, described at all the other is the carrier frequency f of a Node B configuration
2, f
3And f
4On, the transmission content in the downlink synchronization slot is empty, shown in dash area among Fig. 2, the transmission content in the time slot 0 is by system operation and safeguard (O﹠amp; M) passage is provided with; Remove outside described main Common Control Physical Channel and the descending synchronous signal channel, other described physical channels described be to exist in the carrier frequency of Node B configuration one or the more than one carrier frequency, for example at 4 carrier frequency f
1, f
2, f
3And f
4On all can exist; For each described Node B, being distributed in of described physical channel to independently carrying out on the carrier frequency of its configuration: and, for a described Node B, described uplink and downlink DPCH is passed through dynamic channel assignment method, according to the system interference feature on the described different carrier frequencies that measures, be its configuration 4 carrier frequency f
1, f
2, f
3And f
4Last dynamic assignment; Remove outside main Common Control Physical Channel, descending synchronous signal channel and the uplink and downlink DPCH, other described physical channels as required, by system operation and maintenance channel at described 4 carrier frequency f
1, f
2, f
3And f
4On distribute; When described less important Common Control Physical Channel has beacon characteristic (Beacon Characteristics), it is distributed in the carrier frequency f of described main Common Control Physical Channel and descending synchronous signal channel existence
1On; Remove outside described main Common Control Physical Channel, descending synchronous signal channel and the uplink and downlink DPCH, the assignment information of other described physical channels is broadcasted in the main Common Control Physical Channel of each described Node B; At described all 4 carrier frequency f
1, f
2, f
3And f
4On, remove described uplink synchronous channel, descending synchronous signal channel and have outside the physical channel of beacon characteristic, training sequence part in other described physical channels is used an identical basic training sequences sign indicating number, described propaedeutics sign indicating number belongs to one of described 128 possible propaedeutics sign indicating numbers, according to described carrier frequency f
1On descending synchronous signal channel in descending synchronous code determine; And use identical and the corresponding scrambler of described basic training sequences sign indicating number to described other physical channel scramblings of removing outside uplink synchronous channel and the descending synchronous signal channel.
In above-mentioned multiple carrier time division synchronous CDMA access system, owing to be the carrier frequency f that described Node B disposes at all 4
1, f
2, f
3And f
4On, only there is a common main Common Control Channel and a descending synchronous signal channel, than being all to have independently main Common Control Physical Channel and descending synchronous signal channel on the carrier frequency of described Node B configuration at each, can reduce the redundancy of system information, thereby improve the efficient of system; Simultaneously because on described all 4 carrier frequencies, remove described uplink synchronous channel, descending synchronous signal channel and having outside the physical channel of beacon characteristic, training sequence part in other described physical channels is used an identical basic training sequences code word, and use an identical scrambler to described other physical channel scramblings of removing outside uplink synchronous channel and the descending synchronous signal channel, than on each carrier frequency, all disposing different basic training sequences sign indicating number and scrambler for described Node B configuration, use that can the optimization system code source, thus the basic instruction row sequence code between the different nodes B and the spacing of scrambling code strengthened; And for a described Node B, described uplink and downlink DPCH is by dynamic channel assignment method, be its configuration 4 carrier frequency f
1, f
2, f
3And f
4Last dynamic assignment has fully utilized the interference characteristic of system on the described different carrier frequencies; Thereby by using the physical channel allocating method in the above-mentioned multiple carrier time division synchronous CDMA access system, made full use of the advantage of a plurality of carrier waves of a Node B configuration in the multiple carrier time division synchronous CDMA access system, thus the design of global optimization system on described a plurality of carrier frequencies.
In another embodiment of the present invention, if the Node B in the described multiple carrier time division synchronous CDMA access system is supported the sector, 3 sectors for example, described each sector configuration more than one carrier frequency f
1, f
2..., f
nMethod of the present invention then in like manner can be used in n＞1, for the sector of a described Node B, described main Common Control Physical Channel exists on identical carrier frequency with descending synchronous signal channel, and only described be to exist on the carrier frequency in the carrier frequency of a sector configuration; Described remove outside main Common Control Physical Channel and the descending synchronous signal channel other physical channels described be to exist in the carrier frequency of a sector configuration one or the more than one carrier frequency.
Claims (12)
1. the physical channel allocating method in the multiple carrier time division synchronous CDMA access system wherein disposes more than one carrier frequency f for a Node B of described multiple carrier time division synchronous CDMA access system
1, f
2..., f
nN＞1, described physical channel comprises main Common Control Physical Channel, less important Common Control Physical Channel, uplink synchronous channel, descending synchronous signal channel, insert physical channel fast, Physical Random Access Channel, uplink special physical channel, downward special physical channel, up shared physical channel, Physical Downlink Shared Channel and Page Indication Channel, it is characterized in that: for a described Node B, described main Common Control Physical Channel exists on identical carrier frequency with descending synchronous signal channel, and only described be to exist on the carrier frequency in the carrier frequency of Node B configuration; Remove outside described main Common Control Physical Channel and the descending synchronous signal channel, other described physical channels described be to exist in the carrier frequency of Node B configuration one or the more than one carrier frequency.
2. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 1, it is characterized in that in described Node B, described main Common Control Physical Channel and descending synchronous signal channel all only described be a fixed carrier frequency f in the carrier frequency of a Node B configuration
1Last existence.
3. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 2 is characterized in that existing the carrier frequency of described main Common Control Physical Channel and descending synchronous signal channel by described multiple carrier time division synchronous CDMA access system default setting.
4. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 2, it is characterized in that removing outside the carrier frequency that has described main Common Control Physical Channel and descending synchronous signal channel, described at all the other is that the transmission content in the descending pilot frequency time slot be a sky on the carrier frequency of Node B configuration.
5. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 2, it is characterized in that removing outside the carrier frequency that has described main Common Control Physical Channel and descending synchronous signal channel, described at all the other is that the transmission content in the time slot 0 is provided with by system operation and maintenance channel on the carrier frequency of Node B configuration.
6. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 1, it is characterized in that for described Node B, remove outside described main Common Control Physical Channel and the descending synchronous signal channel, other described physical channels described be independent allocation on the carrier frequency of Node B configuration.
7. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 6, it is characterized in that for a described Node B described uplink special physical channel and described downward special physical channel are by dynamic channel assignment method dynamic assignment on the carrier frequency that is its configuration.
8. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 6, it is characterized in that when described less important Common Control Physical Channel has the beacon characteristic, it is distributed on that carrier frequency of main Common Control Physical Channel and descending synchronous signal channel existence.
9. as the physical channel allocating method in claim 6, the 7 or 8 described a kind of multiple carrier time division synchronous CDMA access systems, it is characterized in that removing outside described main Common Control Physical Channel, descending synchronous signal channel and the uplink and downlink DPCH, the assignment information of other described physical channels is broadcasted in the main Common Control Physical Channel of described Node B.
10. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 1, it is characterized in that existing on the carrier frequency of described physical channel, use an identical scrambler described other physical channel scramblings of removing outside uplink synchronous channel and the descending synchronous signal channel at all.
11. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 1, it is characterized in that existing on the carrier frequency of described physical channel at all, remove described uplink synchronous channel, descending synchronous signal channel and have outside the physical channel of beacon characteristic the identical basic training sequences code word of training sequence part use in other described physical channels.
12. the physical channel allocating method in a kind of multiple carrier time division synchronous CDMA access system as claimed in claim 1 is characterized in that described Node B support sector s
1, s
2..., s
m, m＞1, each sector configuration of described Node B more than one carrier frequency f
1, f
2..., f
n, n＞1, for the sector of a described Node B, described main Common Control Physical Channel exists on identical carrier frequency with descending synchronous signal channel, and only described be to exist on the carrier frequency in the carrier frequency of a sector configuration; Remove outside described main Common Control Physical Channel and the descending synchronous signal channel, other described physical channels described be to exist in the carrier frequency of a sector configuration one or the more than one carrier frequency.
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| CN 200410062503 CN1716816B (en) | 2004-06-30 | 2004-06-30 | Physics channel distribution method in multiple carrier time division synchronous CDMA access system |
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| CN 200410062503 CN1716816B (en) | 2004-06-30 | 2004-06-30 | Physics channel distribution method in multiple carrier time division synchronous CDMA access system |
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| CN1716816B true CN1716816B (en) | 2011-04-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101043718B (en) * | 2006-03-24 | 2011-09-14 | 电信科学技术研究院 | Method for performing paging using downlink sharing physical channel |
| CN101841887B (en) * | 2009-03-17 | 2013-06-26 | 电信科学技术研究院 | Method and device for indicating resource bearing downlink information |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298578A (en) * | 1998-02-27 | 2001-06-06 | 西门子公司 | TDD telecommunications systems with wireless telecommunication based on code and time-division multiplex |
| CN1365586A (en) * | 2000-03-29 | 2002-08-21 | 松下电器产业株式会社 | Communication terminal and radio communication method |
| US6487405B1 (en) * | 1994-09-26 | 2002-11-26 | Adc Telecommunications, Inc. | Communication system with multicarrier telephony transport for controlling a plurality of service units |
-
2004
- 2004-06-30 CN CN 200410062503 patent/CN1716816B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6487405B1 (en) * | 1994-09-26 | 2002-11-26 | Adc Telecommunications, Inc. | Communication system with multicarrier telephony transport for controlling a plurality of service units |
| CN1298578A (en) * | 1998-02-27 | 2001-06-06 | 西门子公司 | TDD telecommunications systems with wireless telecommunication based on code and time-division multiplex |
| CN1365586A (en) * | 2000-03-29 | 2002-08-21 | 松下电器产业株式会社 | Communication terminal and radio communication method |
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