CN101471914B - 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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- CN101471914B CN101471914B CN 200710125674 CN200710125674A CN101471914B CN 101471914 B CN101471914 B CN 101471914B CN 200710125674 CN200710125674 CN 200710125674 CN 200710125674 A CN200710125674 A CN 200710125674A CN 101471914 B CN101471914 B CN 101471914B
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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 of indicating 64QAM (Quadrature Amplitude Modulation) modulation system by high-speed shared control channel HS-SCCH in TD SDMA (TD-SCDMA) system.
Background technology
An important feature of 3-G (Generation Three mobile communication system) is the disequilibrium of the traffic carrying capacity of business uplink and downlink link, and the traffic carrying capacity of down link will general traffic carrying capacity greater than up link.For this characteristics of demand, 3GPP (3rd Generation Partnership Project, third generation partner program) has introduced high speed downlink packet access (HSDPA:High Speed Downlink Packet Access) characteristic in the 3G standard.In the HSDPA characteristic, by introducing adaptive coding and modulating (AMC:Adaptive Modulation and Coding), mixed automatic retransfer request (HARQ:Hybrid Automatic Retransmission 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 technology of TD-SCDMA system, the new physical channel of introducing comprises: high-speed physical downlink is shared physical channel HS-PDSCH (High Speed Physical Downlink Shared Channel), high-speed shared control channel HS-SCCH (Shared Control Channel for HS-DSCH) and high-speed shared information channel HS-SICH (Shared Information Channel for HS-DSCH), above-mentioned physical channel resources in residential quarter be in the mode of resource pool as the residential quarter in a plurality of users share in the mode of time-division or code minute.Wherein, HS-PDSCH is used for carrying user's business datum, and the information such as the HS-PDSCH code resource that each user uses in different TTI (Transmission Time Interval), transmission block size, modulation system are indicated on HS-SCCH by NodeB (Node B).Wherein comprise following information in 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 Shift Keying), 1 expression 16QAM.
Transport block size information, represented by 6bit, implication is the index of respective transmissions piece in the HSDPA transport block size index table that under user equipment (UE) (User Equipment), ability rating is corresponding, each ability rating can find each self-corresponding transport block size index table, comprises 64 kinds of transmission block sizes that the UE of this ability rating supports in 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 HS-SCCH.
Along with the progress of technology, use 64QAM to become possibility in HSDPA, but because modulation system information can only represent with a 1bit, can only express two kinds of modulating modes, this just makes according to present structure can't express 64QAM.If change the HS-SCCH frame structure, can cause compatibility issue again.Thereby, how under the prerequisite of ensure compatibility, make the UE can be by the dynamic plan of transmission block size modulating mode, thereby realize that expressing 64QAM on the basis that does not change the HS-SCCH frame structure becomes urgent problem.
Summary of the invention
The object of the present invention is to provide under a kind of TD-SCDMA HSDPA system the method by HS-SCCH information acquisition modulation system, make system can indicate the 64QAM modulation system under the prerequisite that does not change the HS-SCCH frame structure, to reach not only ensure compatibility but also can indicate the effect of 64QAM modulation system.
The invention provides a kind of method of indicating modulation mode of high speed descending grouping 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, determine modulation system information according to following mode, and be sent to terminal:
If the modulation system of determining is 64QAM or QPSK, the modulation system information with High-Speed Shared Control Channel is set to 0; If the modulation system of determining is 16QAM, the modulation system information with High-Speed Shared Control Channel is set to 1;
after the terminal of described support 64QAM receives High-Speed Shared Control Channel, read the modulation system information bit, if be 1, with 16QAM as the terminal demodulation mode, if the modulation system information that reads is 0, at first according to the QPSK modulation system, according to the time slot that distributes in HS-SCCH, code channel resource information, the eat dishes without rice or wine actual bearer ability of physical layer of acquisition, transmission block size according to the HS-SCCH indicating, 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, with 64QAM as the terminal demodulation mode, otherwise with QPSK as the terminal demodulation mode.
Described method further comprises:
If Node B judges this terminal and does not support the 64QAM modulation system, 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, described modulation system information is set to 0, if modulation system is 16QAM, described modulation system information is set to 1, and is sent to terminal.
Above-mentioned bearing capacity of eating dishes without rice or wine physical layer reality refers to, 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 configures 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 configured.
The physical carrier demand of above-mentioned transmission block refers to, 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 configured.
Described method further comprises:
After the described terminal of not supporting 64QAM receives High-Speed Shared Control Channel, if the modulation system information that reads is 0, take the QPSK modulation system as the terminal modulation system, if the modulation system information that reads is 1, 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 layer bearing capacity of namely eating dishes without rice or wine 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 the function support to 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 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.In the situation that modulation system determines, the physical slot by time that configures 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 that configures size, 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.
By the flow process of HS-SCCH indicating modulation mode, comprise the steps: under the TD-SCDMA system
After the information such as the good transmission block size of Information Selection, modulating mode, code channel resource such as the CQI that step 11:NodeB reports according to UE (Channel Quality Indication, channel quality indication), fill in HS-SCCH and send to UE;
After step 22:UE receives HS-SCCH, the modulation system that the code channel resource information by wherein and transport block size information judgement NodeB adopt.
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 namely configures modulation system information is that 0 or 1 (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 in the present invention for the UE that supports 64QAM, be on 1 bit size constant basis keeping modulation system information, by flexible configuration, make this modulation system information can indicate QPSK/16QAM/64QAM.
Modulation system information in 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 means QPSK or 64QAM is decided according to the physical layer actual bearer ability that calculates and the relation of physical carrier demand by UE.
Wherein, the data volume of the information such as the CQI that reports according to UE of NodeB and the needs transmission HS-PDSCH code channel resource selecting transmission block size (TB SIZE), modulation system and use.
In step 22:
After supporting that the UE of 64QAM receives HS-SCCH, UE adopts the modulation system determination methods of describing in the present invention, is that on 1 bit size constant basis, deciding modulation system by simple differentiation is 16QAM, 64QAM or QPSK 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.
The below again under the TD-SCDMA system for the Signalling exchange flow process of HSDPA service terminal and network side as example, 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, the relevant informations such as indication code channel resource, transmission block size and modulation system;
After step 302:UE receives HS-SCCH, calculate by transmission block information, code channel information and the modulation mode information of distributing the modulation system that to use.
Before step 301, whether terminal UE can by existing reporting terminal capability information flow process and link establishment flow process, to Node B, support the information of 64QAM with reporting terminal capability information 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 determines the modulation system of 16QAM according to current channel quality, fill in 1 in modulation system information; If 64QAM or QPSK are adopted in the NodeB judgement, fill in 0 in modulation system information.
in step 302, after UE receives HS-SCCH information, the modulation system information bit that reads, if be 1, with 16QAM as the terminal demodulation mode, if the modulation system information that reads is 0, at first according to the QPSK modulation system, according to the time slot that distributes in HS-SCCH, code channel resource information, calculate the actual bearer ability of the physical layer of eating dishes without rice or wine, transmission block size according to the HS-SCCH indicating, the physical carrier demand that calculates business according to the minimum punching limit 40% and coded system, if the physical layer actual bearer ability that calculates can not satisfy the physical carrier demand of business, and the transmission rate that can carry of actual physics layer is less than the transmission rate of business, with 64QAM as the terminal demodulation mode, otherwise with QPSK as the terminal demodulation mode.
By said method, in the situation that use 64QAM, UE can obtain modulation mode information in the situation that do not change the HS-SCCH frame structure.
Claims (7)
1. the method for an indicating modulation mode of high speed descending grouping access, is characterized in that, 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, determine modulation system information according to following mode, and be sent to terminal:
If the modulation system of determining is 64QAM or QPSK, the modulation system information with High-Speed Shared Control Channel is set to 0; If the modulation system of determining is 16QAM, the modulation system information with High-Speed Shared Control Channel is set to 1;
The terminal of described support 64QAM reads the modulation system information bit after receiving High-Speed Shared Control Channel, if be 1, with 16QAM as the terminal demodulation mode; If the modulation system information that reads is 0, according to the QPSK modulation system, according to the time slot that distributes in High-Speed Shared Control Channel, 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 High-Speed Shared Control Channel indicating, 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, with 64QAM as the terminal demodulation mode, otherwise with QPSK as the terminal demodulation mode.
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, according to the modulation system information according to the definite modulation system configuration high-speed shared control channel of described ability information, if modulation system is QPSK, described modulation system information is set to 0, if modulation system is 16QAM, described modulation system information is set to 1, and is sent to terminal.
3. the method for claim 1, it is characterized in that, described bearing capacity of eating dishes without rice or wine physical layer reality refers to, 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 configures 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 configured.
4. method as described in claim 1 or 3, it is characterized in that, the physical carrier demand of described transmission block refers to, 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 configured.
5. method as claimed in claim 2, is characterized in that, described method further comprises:
After the described terminal of not supporting 64QAM receives High-Speed Shared Control Channel, if the modulation system information that reads is 0, take the QPSK modulation system as the terminal modulation system, if the modulation system information that reads is 1, with the 16QAM modulation system as the terminal modulation system.
6. 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.
7. 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8782237B2 (en) * | 2010-01-28 | 2014-07-15 | Intel Corporation | Audio/video streaming in a topology of devices |
| CN102238636B (en) * | 2010-04-30 | 2016-06-15 | 中兴通讯股份有限公司 | The method and system of network side configuration the used transmission block form of subscriber equipment reality |
| CN102447668A (en) * | 2010-09-30 | 2012-05-09 | 华为技术有限公司 | Method for configuring high order modulation for user equipment in cell forward access channel (C_FACH) state and devices |
| 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 |
| US10687209B2 (en) * | 2017-09-13 | 2020-06-16 | Qualcomm Incorporated | UE capability constraint indications for high order modulation |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1893335A (en) * | 2005-07-01 | 2007-01-10 | 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1893335A (en) * | 2005-07-01 | 2007-01-10 | 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 |
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