CN101471914A - Method for indicating modulation mode of high speed descending grouping access - Google Patents
Method for indicating modulation mode of high speed descending grouping access Download PDFInfo
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- CN101471914A CN101471914A CNA2007101256744A CN200710125674A CN101471914A CN 101471914 A CN101471914 A CN 101471914A CN A2007101256744 A CNA2007101256744 A CN A2007101256744A CN 200710125674 A CN200710125674 A CN 200710125674A CN 101471914 A CN101471914 A CN 101471914A
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Abstract
The invention discloses a method for instructing a modulation mode in a high speed downlink packet access (HSDPA). The method comprises the following steps: a wireless network controller receives a capacity message reported from a terminal and transmits the capacity message to a NodeB; and the NodeB determines the size, the modulation mode and the code channel resource of a transmission block to be instructed according to capacity restriction conditions and the capacity message, and, if judging that the terminal support a 64QAM (quadrature amplitude modulation) modulation mode, determines a modulation mode message according to the following way and transmits to the terminal: if the determined modulation mode is 64QAM or QPSK (quadrature phase shift keying), setting the modulation mode message of a share control channel for high speed downlink shared channel (HS-DSCH) (HS-SCCH) to be zero, and if the determined modulation mode is 64QAM, setting the modulation mode message of the HS-SCCH to be 1. The method needs not to change the available variable HS-SCCH frame structure, and can be compatible to user equipment (UE) supporting higher-order modulation scheme like 64QAM or not.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of method in TD SDMA (TD-SCDMA) system by high-speed shared control channel HS-SCCH indication 64QAM (QuadratureAmplitude Modulation) modulation system.
Background technology
A disequilibrium that important feature is the traffic carrying capacity of professional uplink and downlink link of 3-G (Generation Three mobile communication system), the traffic carrying capacity of down link will general traffic carrying capacity greater than up link.At this characteristics of demand, 3GPP (3rd Generation Partnership Project, third generation partner program) has introduced high speed downlink packet access (HSDPA:High Speed Downlink PacketAccess) characteristic in the 3G standard.In the HSDPA characteristic, by introducing adaptive coding and modulating (AMC:AdaptiveModulation and Coding), mixing automatic repeat requests (HARQ:Hybrid AutomaticRetransmission Request) technology and the relevant technology that reduces the network processes time delay, the downlink grouping traffic speed of higher rate is provided, improves spectrum utilization efficiency.
In the HSDPA of TD-SCDMA system technology, the new physical channel of introducing comprises: high-speed physical downlink is shared physical channel HS-PDSCH (High Speed Physical Downlink SharedChannel), high-speed shared control channel HS-SCCH (Shared Control Channel forHS-DSCH) and high-speed shared information channel HS-SICH (Shared Information Channel forHS-DSCH), and the above-mentioned physical channel resources in sub-district is that the mode with resource pool is that a plurality of users are shared in the mode of time-division or sign indicating number branch in the sub-district.Wherein, HS-PDSCH is used for carrying user's business datum, and each user is indicated on HS-SCCH by NodeB (Node B) in information such as the employed HS-PDSCH sign indicating number of different TTI (Transmission Time Interval) resource, transmission block size, modulation systems.Wherein comprise following information among the HS-SCCH:
-spreading code set information (8 bit): xccs, 1, xccs, 2 ..., xccs, 8
-gap information (5 bit): xts, 1, xts, 2 ..., xts, 5
-modulation system information (1 bit): xms, 1
-transport block size information (6 bit): xtbs, 1, xtbs, 2 ..., xtbs, 6
-hybrid automatic repeat request process information (3 bit): xhap, 1, xhap, 2 ..., xhap, 3
-redundancy version information (3 bit): xrv, 1, xrv, 2, xrv, 3
-new data indication (1 bit): xnd, 1
-HS-SCCH cyclic sequence number (3 bit): xhcsn, 1, xhcsn, 2, xhcsn, 3
-UE identification number (16 bit): xue, 1, xue, 2 ..., xue, 16
Wherein:
Modulation system information is represented by 1bit, and wherein 0 represents QPSK (Quadrature Phase ShiftKeying), 1 expression 16QAM.
Transport block size information, represent by 6bit, implication is the index of respective transmissions piece in the HSDPA transport block size index table of ability rating correspondence under the user equipment (UE) (User Equipment), each ability rating can both find each self-corresponding transport block size index table, comprises 64 kinds of transmission block sizes that UE supported of this ability rating in the table.UE can receive HS-PDSCH information subsequently according to modulating mode, transmission block size wherein on the code channel of its appointment after the information of receiving on the HS-SCCH.
Along with development of technology, in HSDPA, use 64QAM to become possibility, but because modulation system information can only represent that can only express two kinds of modulating modes, this just makes can't express 64QAM according to present structure with a 1bit.If change the HS-SCCH frame structure, can cause compatibility issue again.Thereby, how guaranteeing under the compatible prerequisite, make that UE can be by the dynamic plan of transmission block size modulating mode, express 64QAM on the basis that does not change the HS-SCCH frame structure and become urgent problem thereby be implemented in.
Summary of the invention
The object of the present invention is to provide under a kind of TD-SCDMA HSDPA system method by HS-SCCH information acquisition modulation system, the system that makes can indicate the 64QAM modulation system under the prerequisite that does not change the HS-SCCH frame structure, not only guarantee compatible but also can indicate the effect of 64QAM modulation system to reach.
The invention provides the method for indicating modulation mode in a kind of high speed downlink packet access, comprising:
The ability information that the radio network controller receiving terminal reports, this ability information is passed to NodeB, NodeB need to determine transmission block size, modulation system, the code channel resource of indication according to ability constraints and described ability information, support the 64QAM modulation system if judge this terminal, then determine modulation system information, and be sent to terminal according to following mode:
If the modulation system of determining is 64QAM or QPSK, then the modulation system information with High-Speed Shared Control Channel is changed to 0; If the modulation system of determining is 16QAM, then the modulation system information with High-Speed Shared Control Channel is changed to 1.
Described method further comprises:
If Node B is judged this terminal and is not supported the 64QAM modulation system, then will be according to the modulation system information of the definite modulation system configuration high-speed shared control channel of described ability information, if modulation system is QPSK, then described modulation system information is changed to 0, if modulation system is 16QAM, then described modulation system information is changed to 1, and is sent to terminal.
Described method further comprises:
After the terminal of described support 64QAM receives High-Speed Shared Control Channel, read the modulation system information bit, if be 1, then with 16QAM as the terminal demodulation mode, if the modulation system information that reads is 0, then at first according to the QPSK modulation system, according to distributed time slot among the HS-SCCH, code channel resource information, the eat dishes without rice or wine actual bearer ability of physical layer of acquisition, according to the transmission block size of indicating among the HS-SCCH, obtain the physical carrier demand of transmission block according to the minimum punching limit and coded system, physical layer actual bearer ability can not satisfy the physical carrier demand of transmission block if eat dishes without rice or wine, then with 64QAM as the terminal demodulation mode, otherwise with QPSK as the terminal demodulation mode.
Above-mentioned bearing capacity of eating dishes without rice or wine physical layer reality is meant, the high speed downlink grouping access business code channel number that multiply by each time slot configuration with the physical slot by time number that is disposed multiply by the bit rate that each code channel can transmit again, perhaps with the described bit rate that calculates divided by the total number of high speed downlink grouping access business code channel that is disposed.
The physical carrier demand of above-mentioned transmission block is meant, total bit rate of the high speed downlink grouping access business code channel needs transmission of determining in conjunction with coding method, rate-matched and the Transmission Time Interval of high speed downlink grouping access business according to the transmission block size, perhaps with the described total bit rate that calculates divided by the total number of high speed downlink grouping access business code channel that is disposed.
Described method further comprises:
After the described terminal of not supporting 64QAM receives High-Speed Shared Control Channel,, be the terminal modulation system then with the QPSK modulation system if the modulation system information that reads is 0, if the modulation system information that reads is 1, then with the 16QAM modulation system as the terminal modulation system.
The ability information of described terminal to report comprises whether this terminal supports the ability information of 64QAM high order modulation.
Described ability constraints is:
The code channel resource that Node B is determined can reach the requirement of carrying given transmission block size under the modulating mode of selecting; The actual physical of promptly eating dishes without rice or wine layer bearing capacity must satisfy the physical carrier demand of transmission block.
Method by the HS-SCCH indicating modulation mode under a kind of TD-SCDMA provided by the invention system, need not to change existing change HS-SCCH frame structure, can compatiblely support and the UE equipment of not supporting 64QAM, high order modulation, realize function support the modulation system of 64QAM.
Description of drawings
Fig. 1 is the method flow diagram of indicating modulation mode of the present invention.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing technical solutions according to the invention are described further.
Can see that from background technology HSDPA is come modulation system, physical slot by time, code channel resource and the transport block size information of configuration UE use as a kind of high speed downlink grouping traffic by HS-SCCH by network side.Under the situation that modulation system is determined, physical slot by time that is disposed and code channel resource can determine the to eat dishes without rice or wine bearing capacity of physical layer reality; According to the transmission block size that is disposed, the physical carrier demand that calculates transmission block according to the punching limit that allows and coded system.Actual physical layer bearing capacity must satisfy the physical carrier demand of transmission block.
Under the TD-SCDMA system,, comprise the steps: by the flow process of HS-SCCH indicating modulation mode
After the CQI that step 11:NodeB reports according to the UE information such as the good transmission block size of Information Selection, modulating mode, code channel resource such as (Channel Quality Indication, channel quality indications), fill in HS-SCCH and send to UE;
After step 22:UE receives HS-SCCH, judge the modulation system that NodeB adopts by wherein code channel resource information and transport block size information.
In step 11, NodeB is for the UE that does not support 64QAM, and NodeB still adopts original modulating mode method for expressing, and the value that promptly disposes modulation system information is 0 or 1, and (0-QPSK, 1-16QAM) to come indicating modulation mode be QPSK or 16QAM.
In step 11, NodeB adopts the modulating mode method for expressing of describing among the present invention at the UE that supports 64QAM, keeping modulation system information is on the 1 bit size basis of invariable, by flexible configuration, makes this modulation system information can indicate QPSK/16QAM/64QAM.
Modulation system information in the HS-SCCH information (1 bit) still keeps, the implication of its definition 1 expression 16QAM remains unchanged, but 0 no longer only represents QPSK, 0 expression QPSK or 64QAM, concrete 0 is that expression QPSK or 64QAM are decided according to the physical layer actual bearer ability that calculates and the relation of physical carrier demand by UE.
Wherein, information such as the CQI that reports according to UE of NodeB and needs data quantity transmitted are selected transmission block size (TB SIZE), modulation system and employed HS-PDSCH code channel resource.
In step 22:
After the UE of support 64QAM received HS-SCCH, UE adopted the modulation system determination methods of describing among the present invention, was that deciding modulation system by simple differentiation is 16QAM, 64QAM or QPSK on the 1 bit size basis of invariable keeping modulation system information.
In step 22:
After not supporting that the UE of 64QAM receives HS-SCCH, still understand modulation system information according to original mode.That is: when the modulation system value of information was 0, what expression was used was the QPSK modulation system; When the value of modulation system information was 1, what expression was used was the 16QAM modulation system.
Be example with the Signalling exchange flow process at HSDPA service terminal and network side under the TD-SCDMA system more below, a kind of application example of technical scheme of the present invention is described.
As shown in Figure 1, the Signalling exchange flow process fragment of HSDPA business is:
Step 301:NodeB sends HS-SCCH to UE, relevant informations such as indication code channel resource, transmission block size and modulation system;
After step 302:UE receives HS-SCCH, calculate the modulation system that to use by transmission block information, code channel information and the modulation mode information of distributing.
Before step 301, terminal UE can be given Node B with reporting terminal capability information by existing reporting terminal capability information flow process and link establishment flow process, whether supports the information of 64QAM comprising terminal.
In step 301, NodeB fills in code channel resource information, transmission block size and modulation system information in HS-SCCH when Resources allocation:
Wherein, if NodeB then fills in 1 according to the modulation system of current channel quality decision 16QAM in modulation system information; If 64QAM or QPSK are adopted in the NodeB judgement, then in modulation system information, fill in 0.
In step 302, after UE receives HS-SCCH information, the modulation system information bit that reads, if be 1, then with 16QAM as the terminal demodulation mode, if the modulation system information that reads is 0, then at first according to the QPSK modulation system, according to distributed time slot among the HS-SCCH, code channel resource information, calculate the actual bearer ability of the physical layer of eating dishes without rice or wine, according to the transmission block size of indicating among the HS-SCCH, calculate professional physical carrier demand according to the minimum punching limit 40% and coded system, if the physical layer actual bearer ability that calculates can not satisfy professional physical carrier demand, and the transmission rate that can carry of actual physics layer is less than the transmission rate of business, then with 64QAM as the terminal demodulation mode, otherwise with QPSK as the terminal demodulation mode.
By said method, under the situation of using 64QAM, UE can obtain modulation mode information under the situation that does not change the HS-SCCH frame structure.
Claims (8)
1, the method for indicating modulation mode is characterized in that during a kind of high speed downlink packet inserted, and comprising:
The ability information that the radio network controller receiving terminal reports, this ability information is passed to NodeB, NodeB need to determine transmission block size, modulation system, the code channel resource of indication according to ability constraints and described ability information, support the 64QAM modulation system if judge this terminal, then determine modulation system information, and be sent to terminal according to following mode:
If the modulation system of determining is 64QAM or QPSK, then the modulation system information with High-Speed Shared Control Channel is changed to 0; If the modulation system of determining is 16QAM, then the modulation system information with High-Speed Shared Control Channel is changed to 1.
2, the method for claim 1, it is characterized in that, described method further comprises: do not support the 64QAM modulation system if NodeB judges this terminal, then according to modulation system information according to the definite modulation system configuration high-speed shared control channel of described ability information, if modulation system is QPSK, then described modulation system information is changed to 0, if modulation system is 16QAM, then described modulation system information is changed to 1, and is sent to terminal.
3, the method for claim 1 is characterized in that, described method further comprises: the terminal of described support 64QAM reads the modulation system information bit after receiving High-Speed Shared Control Channel, if be 1, then with 16QAM as the terminal demodulation mode; If the modulation system information that reads is 0, then according to the QPSK modulation system, according to distributed time slot, code channel resource information in the High-Speed Shared Control Channel, the eat dishes without rice or wine actual bearer ability of physical layer of acquisition, according to the transmission block size of indicating in the High-Speed Shared Control Channel, obtain the physical carrier demand of transmission block, if the actual bearer ability of the described physical layer of eating dishes without rice or wine can not satisfy the physical carrier demand of transmission block, then with 64QAM as the terminal demodulation mode, otherwise with QPSK as the terminal demodulation mode.
4, method as claimed in claim 3, it is characterized in that, described bearing capacity of eating dishes without rice or wine physical layer reality is meant, the high speed downlink grouping access business code channel number that multiply by each time slot configuration with the physical slot by time number that is disposed multiply by the bit rate that each code channel can transmit again, perhaps with the described bit rate that calculates divided by the total number of high speed downlink grouping access business code channel that is disposed.
5, as claim 3 or 4 described methods, it is characterized in that, the physical carrier demand of described transmission block is meant, total bit rate of the high speed downlink grouping access business code channel needs transmission of determining in conjunction with coding method, rate-matched and the Transmission Time Interval of high speed downlink grouping access business according to the transmission block size, perhaps with the described total bit rate that calculates divided by the total number of high speed downlink grouping access business code channel that is disposed.
6, method as claimed in claim 1 or 2 is characterized in that, described method further comprises:
After the described terminal of not supporting 64QAM receives High-Speed Shared Control Channel,, be the terminal modulation system then with the QPSK modulation system if the modulation system information that reads is 0, if the modulation system information that reads is 1, then with the 16QAM modulation system as the terminal modulation system.
7, the method for claim 1 is characterized in that:
The ability information of described terminal to report comprises whether this terminal supports the ability information of 64QAM high order modulation.
8, the method for claim 1 is characterized in that, described ability constraints is:
The code channel resource that NodeB determines can reach the requirement of carrying given transmission block size under the modulating mode of selecting.
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| CN 200710125674 CN101471914B (en) | 2007-12-26 | 2007-12-26 | Method for indicating modulation mode of high speed descending grouping access |
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| CN 200710125674 CN101471914B (en) | 2007-12-26 | 2007-12-26 | Method for indicating modulation mode of high speed descending grouping access |
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| CN101471914B CN101471914B (en) | 2013-06-05 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195963A (en) * | 2010-01-28 | 2011-09-21 | 英特尔公司 | Binding for audio/video streaming in a topology of devices |
| CN102238636A (en) * | 2010-04-30 | 2011-11-09 | 中兴通讯股份有限公司 | Method and system for configuring actually used TBS (transport block size) table of UE (user equipment) on network side |
| WO2012041230A1 (en) * | 2010-09-30 | 2012-04-05 | 华为技术有限公司 | Higher-order modulation method and equipment for user equipment under the state of cell forward access channel |
| CN103379601A (en) * | 2012-04-18 | 2013-10-30 | 中兴通讯股份有限公司 | Method and apparatus for balancing code channel and power, and base station |
| CN111066279A (en) * | 2017-09-13 | 2020-04-24 | 高通股份有限公司 | UE capability constraint indication for high order modulation |
| CN112673587A (en) * | 2019-08-16 | 2021-04-16 | Oppo广东移动通信有限公司 | Channel processing method, terminal equipment and storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449979C (en) * | 2005-07-01 | 2009-01-07 | 上海原动力通信科技有限公司 | Method for supporting multi-stage modulation by controlling high-speed down-converter grouped access system |
-
2007
- 2007-12-26 CN CN 200710125674 patent/CN101471914B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195963A (en) * | 2010-01-28 | 2011-09-21 | 英特尔公司 | Binding for audio/video streaming in a topology of devices |
| CN102195963B (en) * | 2010-01-28 | 2015-05-20 | 英特尔公司 | Binding for audio/video streaming in a topology of devices |
| CN104683338A (en) * | 2010-01-28 | 2015-06-03 | 英特尔公司 | Message Passing Framework For Audio/video Streaming In A Topology Of Devices |
| CN104683338B (en) * | 2010-01-28 | 2019-04-23 | 英特尔公司 | Audio/video streaming in device layout |
| CN102238636A (en) * | 2010-04-30 | 2011-11-09 | 中兴通讯股份有限公司 | Method and system for configuring actually used TBS (transport block size) table of UE (user equipment) on network side |
| WO2012041230A1 (en) * | 2010-09-30 | 2012-04-05 | 华为技术有限公司 | Higher-order modulation method and equipment for user equipment under the state of cell forward access channel |
| CN103379601A (en) * | 2012-04-18 | 2013-10-30 | 中兴通讯股份有限公司 | Method and apparatus for balancing code channel and power, and base station |
| CN111066279A (en) * | 2017-09-13 | 2020-04-24 | 高通股份有限公司 | UE capability constraint indication for high order modulation |
| CN111066279B (en) * | 2017-09-13 | 2022-06-21 | 高通股份有限公司 | UE capability constraint indication for high order modulation |
| CN112673587A (en) * | 2019-08-16 | 2021-04-16 | Oppo广东移动通信有限公司 | Channel processing method, terminal equipment and storage medium |
| CN112673587B (en) * | 2019-08-16 | 2023-11-03 | Oppo广东移动通信有限公司 | Channel processing method, terminal equipment and storage medium |
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| CN101471914B (en) | 2013-06-05 |
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