CN101128035B - Inter-channel timing method in time division code division multi-address system - Google Patents
Inter-channel timing method in time division code division multi-address system Download PDFInfo
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- CN101128035B CN101128035B CN2006101114575A CN200610111457A CN101128035B CN 101128035 B CN101128035 B CN 101128035B CN 2006101114575 A CN2006101114575 A CN 2006101114575A CN 200610111457 A CN200610111457 A CN 200610111457A CN 101128035 B CN101128035 B CN 101128035B
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- 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
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
- H04B7/2637—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for logical channel control
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- 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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a timing method among the channels in a time and code division multiple access system, aiming at the problems that because the UE of the prior TD-CDMA timing method searches the E-AGCH frequently, the power consumption of UE is too large, which is not suitable for the TD-SCDMA system. For solving the problem, the timing method among the channels in the time and code division multiple access system comprises the following steps: (1) the dispatching request sent to a base station by a piece of subscriber equipment is completed; (2) a down E-AGCH channel between the user equipment and the base station is found after the first minimum time interval. The utility model solves the timing relationship among the channels of HSUPA technique in the time division CDMA system, which is adapted to the frame structure of TD-SCDMA, prevents the UE from searching the E-AGCH frequently, and reduces the power consumption of the UE. As a result, the resource allocation is more flexible, and the resources are fully used.
Description
Technical field
The present invention relates to a kind of wireless telecommunication system that is used for, particularly time division CDMA inserts the timing relationship of each interchannel in the wireless telecommunication system.
Background technology
In 3-G (Generation Three mobile communication system), for the upstream packet business of higher rate is provided, improve spectrum utilization efficiency, 3GPP (3rd Generation Partnership Project) has introduced high speed uplink packet access (HSUPA:High Speed Uplink Packet Access) characteristic, promptly up enhancing characteristic in the standard of WCDMA and TD-CDMA system.
The HSUPA system ascending reinforcement system that is otherwise known as abbreviates the E-DCH system as.In the TD-CDMA system, the HSUPA system physical layer is introduced the E-PUCH physical channel, is used to transmit the CCTrCH of E-DCH type.The scheduling entity that is arranged in the MAC-e of NodeB is responsible for the distribution of E-PUCH (enhancing uplink physical channel) physical resource.Part in the up signaling of MAC-e is carried by 2 new ascending control channels of introducing, main transmitting HARQ, the information that auxiliary dispatching is relevant, and these channels all end in NodeB.Comprise E-UCCH (E-DCH uplink control channel), be used to transmit the relevant information of E-TFCI, HARQ.E-UCCH information can be transmitted in one or more time slots of E-DCH, and is multiplexed on one group of interior E-PUCH of TTI with E-DCH.The multiplex mode of E-UCCH is to use physical layer indication territory.E-RUCCH (E-DCH inserts uplink control channel at random) is used to transmit the relevant information of auxiliary dispatching.E-RUCCH can be mapped on the Physical Random Access Channel resource, and can with the more shared resources of existing P RACH.The information that E-UCCH and E-RUCCH carry is had a style of one's own in a time slot.New downlink signaling channel E-AGCH (absolute grant channel) and the E-HICH (repeat requests answering indication signal channel automatically) of introducing.E-AGCH is used to transmit authorization message; E-HICH is used to carry up E-DCH HARQ indication information.
The timing relationship such as Fig. 1～3 of each channel of the HSUPA technology in the above-mentioned TD-CDMA system, E-DCH is always relevant with an E-HICH indicating channel with one group of E-AGCH channel.The NodeB scheduler is by E-AGCH channel allocation E-DCH transfer resource (time slot/sign indicating number/power); E-HICH is by the transmission of the nearest E-DCH TTI of synchronization timing mechanism affirmation, as Fig. 1.
UE receive E-AGCH and first time slot of the E-DCH TTI that begins subsequently between need to define a minimum interval and be used for the UE inter-process.This time interval is represented with nE-AGCH, nE-AGCH=6.When UE receives E-AGCH, should use first E-DCH resource allocation example behind 6 time slots of current E-AGCH slot offset, this resource may present frame, also may be in next frame, as Fig. 2.
Also need to define a minimum interval between last time slot in the E-DCH TTI and the initial time slot of E-HICH, represent that with nE-HICH scope is between 4 and 44, by upper-layer configured.After UE finishes E-DCH TTI transmission, should be on first E-HICH profile instance behind the cheap nE-HICH of last time slot in the current E-DCH TTI confirmation of receipt information, as Fig. 3.
Because TD-SCDMA adopts low code check technology, introduces simultaneous techniques simultaneously, above-mentioned timing mode is unsuitable for the TD-SCDMA system.In addition, frequently search for E-AGCH, reduce the power consumption of UE, the present invention proposes a kind of timing relationship of each channel of the HSUPA technology that is suitable for the TD-SCDMA system newly for fear of UE.
Summary of the invention
Defective and deficiency at the prior art existence, the invention provides the timing method of interchannel in a kind of time code division multiple access system, can be fit to the frame structure of TD-SCDMA, avoid UE frequently to search for E-AGCH, reduce the power consumption of UE, thereby make that resource allocation is flexible more and make full use of resource.
In order to reach the foregoing invention purpose, the timing method of interchannel in the time code division multiple access system of the present invention may further comprise the steps:
(1) subscriber equipment finishes to the dispatch request of base station initiation;
(2), set up descending E-AGCH channel between subscriber equipment and the base station through first minimum interval.
Wherein, the dispatch request of described subscriber equipment initiation is the dispatch request first time.
Wherein, also comprise:
(3) descending E-AGCH channel finishes;
(4), set up up E-PUCH channel between subscriber equipment and the base station through second minimum interval.
Wherein, also comprise:
(5) up E-PUCH channel finishes;
(6), set up descending E-HICH channel between subscriber equipment and the base station through the 3rd minimum interval.
Wherein, the described first minimum interval span is more than or equal to 1 time slot, smaller or equal to 21 time slots.
Wherein, described first minimum interval is 7 time slots.
Wherein, the described second minimum interval span is more than or equal to 3 time slots, smaller or equal to 24 time slots.
Wherein, described second minimum interval is 8 time slots.
Wherein, described the 3rd minimum interval span is more than or equal to 3 time slots, smaller or equal to 24 time slots.
Wherein, described the 3rd minimum interval is 7 time slots.
The invention solves the timing relationship of each interchannel of HSUPA technology in the time code division multiple access system, make the frame structure of its suitable TD-SCDMA, avoid UE frequently to search for E-AGCH, reduce the power consumption of UE, thereby make that resource allocation is flexible more and make full use of resource.
Description of drawings
HARQ timing scheme among Fig. 1 TD-CDMA;
The minimum timing of E-AGCH and E-DCH relation among Fig. 2 TD-CDMA;
The minimum timing of E-PUCH and E-HICH relation among Fig. 3 TD-CDMA;
Each channel of HSUPA concerns flow chart among Fig. 4 TD-SCDMA;
Initiate the minimum timing relation of new dispatch request information, E-AGCH and E-PUCH under Fig. 5 different situations among the TD-SCDMA;
The minimum timing of E-PUCH and E-HICH relation among the TD-SCDMA under Fig. 6 different situations.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
The invention provides the timing relationship of each interchannel of HSUPA technology in a kind of time code division multiple access system, the HSUPA system comprises that channel is as follows:
The HSUPA system physical layer is introduced up E-PUCH physical channel, and the CCTrCH that is used for UE transmission E-DCH type gives NodeB.E-RUCCH (E-DCH inserts uplink control channel at random) is used to transmit the relevant information of auxiliary dispatching.E-RUCCH can be mapped on the Physical Random Access Channel resource, and can with the more shared resources of existing P RACH.New downlink signaling channel E-AGCH and the E-HICH of introducing.E-AGCH is used for NodeB transmission authorization message and gives UE; E-HICH is used to carry up E-DCHHARQ indication information.These channels concern that flow process as shown in Figure 4:
(401) UE initiates to upload application by E-RUCCH and gives NodeB;
(402) NodeB transmits content size, cell capacity and interference etc. according to UE, distributes code channel resource by E-AGCH to UE;
(403) UE selects the rate corresponding matching way, to uploading data processing such as encode, carries out data upload by E-PUCH;
(404) NodeB carries out the ACK/NACK feedback by E-HICH to uploading data.
Frequently search for E-AGCH for fear of UE, reduce the power consumption of UE, initiate dispatch request, between dispatch request and E-AGCH, increase minimum timing T1 (first minimum interval) as Fig. 5 if the present invention proposes UE.Concern as follows:
If UE is for initiating for the first time dispatch request, the process that UE initiates E-RUCCH is identical with PRACH, frequently search for E-AGCH for fear of UE, reduce the power consumption of UE, simultaneously, the factors such as size of data that Node B need upload according to UE application, cell capacity of considering are dispatched this UE, and carry out allocation of radio resources, so the minimum interval that UE initiates between dispatch request information and the E-AGCH is T1.The value principle of this value is: guarantee that 1, Node B is receiving that authorization requests information has time enough to handle, and send code channel, code channel power information from E-AGCH, UE is correctly received; 2, guarantee that the UE search cycle can not be too frequent, avoid power consumption excessive; 3, the T1 value can not be excessive, otherwise will influence efficient, reduces code check.This value can adopt dual mode to determine: 1, span is variable, by the high level configuration, by system broadcasts or signaling method notice UE and Node B; 2, value is fixed, and UE and Node B defer to this fixing T1.
Sequential relationship between E-AGCH and the E-PUCH such as Fig. 5:
After UE receives E-AGCH, according to code channel, time interval resource that Node B distributes, the MAC-es packet is packed at the MAC-e layer, and physical layer process such as encode.Consider the disposal ability of UE, the minimum interval between E-AGCH and the E-PUCH is T2 (second minimum interval).The value principle of this value is: 1, guarantee UE after the code channel of receiving Node B distribution, time interval resource information, have time enough to handle (as forming MAC-e bag, coding etc.), and send from E-PUCH, Node B is correctly received; 2, the T2 value can not be excessive, otherwise will influence efficient, reduces code check.This value can adopt dual mode to determine: 1, span is variable, by the high level configuration, by system broadcasts or signaling method notice UE and Node B; 2, value is fixed, and UE and Node B defer to this fixing T2.
Sequential relationship between E-PUCH and the E-HICH such as Fig. 6:
Node B receives after the E-PUCH, processing such as deciphers in physical layer, in processing such as MAC-e unpack, according to the result of CRC (cyclic redundancy check (CRC)), need do the ACK/NACK response to the packet of receiving by E-HICH.Consider the processing time of Node B, the minimum interval between E-PUCH and the E-HICH is T3 (the 3rd minimum interval).The value principle of this value is: 1, guarantee Node B after receiving the packet (at E-PUCH) that UE sends, have time enough to handle (as decoding, CRC check etc.), and ACK or NACK are sent by E-HICH, UE is correctly received; 2, the T3 value can not be excessive, otherwise will influence efficient, reduces code check.This value can adopt dual mode to determine: 1, span is variable, by the high level configuration, by system broadcasts or signaling method notice UE and Node B; 2, value is fixed, and UE and Node B defer to this fixing T3.
Above-mentioned sequential relationship is applicable to scheduling and non-scheduling service.
The present invention will provide the timing relationship of each interchannel of HSUPA technology in a kind of time code division multiple access system, be that example describes its implementation process with the TD-SCDMA system below:
Initiate new dispatch request information and the timing T1 between the E-AGCH;
If UE is for initiating for the first time dispatch request, the process that UE initiates E-RUCCH is identical with PRACH.Frequently search for E-AGCH for fear of UE, reduce the power consumption of UE, simultaneously, the factors such as size of data that Node B need upload according to UE application, cell capacity of considering are dispatched this UE, and carry out allocation of radio resources, so new dispatch request information and the minimum interval between the E-AGCH of UE initiation is T1.This value can adopt dual mode to determine: 1, span is variable, by the high level configuration, by system broadcasts or signaling method notice UE and Node B, is T1 ∈ [1,21] Ts as span; 2, value is fixed, and UE and Node B defer to T1=7Ts.
Sequential relationship T2 between E-AGCH and the E-PUCH;
After UE receives E-AGCH, according to code channel, time interval resource that Node B distributes, the MAC-es packet is packed at the MAC-e layer, and physical layer process such as encode.Consider the disposal ability of UE, the minimum interval between E-AGCH and the E-PUCH is Ts.This value can adopt dual mode to determine: 1, span is variable, by the high level configuration, by system broadcasts or signaling method notice UE and Node B, is T2 ∈ [3,24] Ts as span; 2, value is fixed, and UE and Node B defer to T2=8Ts.
Sequential relationship T3 between E-PUCH and the HICH;
Node B receives after the E-PUCH, processing such as deciphers in physical layer, in processing such as MAC-e unpack, according to the result of CRC, need do the ACK/NACK response to the packet of receiving by E-HICH.Consider the processing time of Node B, the minimum interval between E-PUCH and the E-HICH is T3.This value can adopt dual mode to determine: 1, span is variable, by the high level configuration, by system broadcasts or signaling method notice UE and Node B, is T2 ∈ [3,24] Ts as span; 2, value is fixed, and UE and Node B defer to T3=7Ts.
Claims (8)
1. the timing method of interchannel in the time code division multiple access system is characterized in that: may further comprise the steps
(1) subscriber equipment finishes to the dispatch request of base station initiation;
(2), set up descending absolute grant channel between subscriber equipment and the base station through first minimum interval;
(3) descending absolute grant channel E-AGCH finishes;
(4), set up up enhancing uplink physical channel between subscriber equipment and the base station through second minimum interval;
(5) strengthening uplink physical channel E-PUCH finishes;
(6), set up descending automatic repeat requests answering indication signal channel between subscriber equipment and the base station through the 3rd minimum interval.
2. the timing method of interchannel in the time code division multiple access system according to claim 1 is characterized in that: the dispatch request that described subscriber equipment is initiated is the dispatch request first time.
3. the timing method of interchannel in the time code division multiple access system according to claim 1 is characterized in that: the described first minimum interval span is more than or equal to 1 time slot, smaller or equal to 21 time slots.
4. the timing method of interchannel in the time code division multiple access system according to claim 3 is characterized in that: described first minimum interval is 7 time slots.
5. the timing method of interchannel in the time code division multiple access system according to claim 1 is characterized in that: the described second minimum interval span is more than or equal to 3 time slots, smaller or equal to 24 time slots.
6. the timing method of interchannel in the time code division multiple access system according to claim 5 is characterized in that: described second minimum interval is 8 time slots.
7. the timing method of interchannel in the time code division multiple access system according to claim 1 is characterized in that: described the 3rd minimum interval span is more than or equal to 3 time slots, smaller or equal to 24 time slots.
8. the timing method of interchannel in the time code division multiple access system according to claim 7 is characterized in that: described the 3rd minimum interval is 7 time slots.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101114575A CN101128035B (en) | 2006-08-18 | 2006-08-18 | Inter-channel timing method in time division code division multi-address system |
| PCT/CN2006/003775 WO2008022502A1 (en) | 2006-08-18 | 2006-12-30 | Method for timing among channels in the td-cdma system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101114575A CN101128035B (en) | 2006-08-18 | 2006-08-18 | Inter-channel timing method in time division code division multi-address system |
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| CN101128035A CN101128035A (en) | 2008-02-20 |
| CN101128035B true CN101128035B (en) | 2011-08-24 |
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| CN101217298B (en) * | 2008-01-03 | 2011-08-24 | 中兴通讯股份有限公司 | A method to reduce and enhance the code rate of absolute authorization channel of private channel |
| CN101547498B (en) * | 2008-03-26 | 2012-10-10 | 展讯通信（上海）有限公司 | Uplink access method for CELL_FACH state in TDD system |
| WO2010028213A2 (en) | 2008-09-05 | 2010-03-11 | Elan Pharmaceuticals, Inc. | N-sulfonamido polycyclic pyrazolyl compounds |
| CN101677463B (en) * | 2008-09-18 | 2012-07-25 | 电信科学技术研究院 | Method and apparatus for realizing semi-persistent physical resource distribution |
| CN101394668B (en) | 2008-10-24 | 2012-04-18 | 中兴通讯股份有限公司 | Scheduling request signal sending method and device |
| CN102316125B (en) * | 2010-06-29 | 2014-03-12 | 中兴通讯股份有限公司 | Method for realizing HSUPA (High Speed Uplink Packet Access) physical layer software control in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) |
| CN103795434B (en) * | 2010-10-21 | 2017-04-26 | 高通股份有限公司 | Facilitating uplink synchronization in TD-SCDMA multi-carrier systems |
| CN104717677B (en) * | 2013-12-13 | 2018-03-23 | 中国移动通信集团山西有限公司 | The TD LTE frames collocation methods and device of co-siting base stations |
| US10893551B2 (en) * | 2017-03-11 | 2021-01-12 | Qualcomm Incorporated | Numerology dependent communication timing |
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| EP1223776A1 (en) * | 2001-01-12 | 2002-07-17 | Siemens Information and Communication Networks S.p.A. | A collision free access scheduling in cellular TDMA-CDMA networks |
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| CN101128035A (en) | 2008-02-20 |
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