WO2009065273A1 - Procédé pour prendre en charge la modulation d'ordre élevé et la synchronisation dans le système d'accès multiple par répartition en code synchrone et répartition dans le temps - Google Patents

Procédé pour prendre en charge la modulation d'ordre élevé et la synchronisation dans le système d'accès multiple par répartition en code synchrone et répartition dans le temps Download PDF

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Publication number
WO2009065273A1
WO2009065273A1 PCT/CN2007/071110 CN2007071110W WO2009065273A1 WO 2009065273 A1 WO2009065273 A1 WO 2009065273A1 CN 2007071110 W CN2007071110 W CN 2007071110W WO 2009065273 A1 WO2009065273 A1 WO 2009065273A1
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WO
WIPO (PCT)
Prior art keywords
order modulation
bit
modulation mode
frame structure
64qam
Prior art date
Application number
PCT/CN2007/071110
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English (en)
Chinese (zh)
Inventor
Jing Zhao
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to CN2007801002445A priority Critical patent/CN101933265A/zh
Priority to PCT/CN2007/071110 priority patent/WO2009065273A1/fr
Publication of WO2009065273A1 publication Critical patent/WO2009065273A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a method for supporting high-order modulation in a time division synchronous code division multiple access (TD-SCDMA) system and a method for implementing high-order modulation synchronization between a terminal side and a network side.
  • TD-SCDMA time division synchronous code division multiple access
  • HSDPA High Speed Downlink Packet Access
  • the newly introduced physical channels include: HS-PDSCH, HS-SCCH, HS-SICH three channels, wherein
  • the HS-PDSCH (High Speed Physical Downlink Shared Channel) is used to carry user data of the user;
  • the HS-SCCH Shared Control Channel for HS-DSCH
  • UE User Equipment
  • the HS-SICH Shared Information Channel for HS-DSCH
  • Node B Node B
  • Each HS-SCCH channel is fixedly associated with one HS-SICH channel, and a pair of HS-SCCH and HS-SICH channels must belong to the same carrier frequency.
  • a cell can have multiple carrier frequencies, and HSDPA services can be established on each carrier frequency.
  • the UE can simultaneously receive HSDPA services on one or more carrier frequencies according to its own capabilities. Since the HS-PDSCH is a shared physical channel, the HS-PDSCH on one carrier frequency is shared by all users using HSDPA on the carrier frequency, and the physical channel scheduling between the UEs is completed in the NodeB.
  • UTRAN can change the modulation mode and TBSize (Transport Block Sizes) index in each transmission (Transmission Timing Interval) in real time according to the specific channel quality.
  • the fixed DPCH (Downlink Physical Channel) channel and the RNC (Radio Network Controller) are relatively fixed radio resource allocation mechanisms, HS-DSCH (High Speed Downlink Shared Channel) , high-speed downlink shared channel) has the potential to use high-order modulation mode under the condition of good air channel quality, and the higher-efficiency high-order modulation mode will further improve the downlink transmission rate of HSDPA. For operators, It can attract more high-end users to use HSDPA services.
  • the technical problem to be solved by the present invention is to provide a method for supporting high-order modulation, and further to provide a method for high-order modulation synchronization to achieve a time-division synchronous code division multiple access system ( In TD-SCDMA, high-order modulation is supported and the high-order modulation mode of the terminal side and the network side is synchronized to improve the transmission rate of the high-speed downlink packet access service in the TD-SCDMA system.
  • TD-SCDMA time-division synchronous code division multiple access system
  • the present invention provides a method for supporting high-order modulation in a time division synchronous code division multiple access system, comprising the steps of: configuring a bit for indicating a high-order modulation mode in a frame structure of a high-speed shared control channel; In the shared channel physical layer classification information, the capability category corresponding to the high-order modulation mode is configured, and the transport block size and the index content of the capability category are correspondingly increased.
  • a manner of configuring a bit for indicating a high-order modulation mode, that is, 64QAM, in a frame structure of the high-speed shared control channel includes:
  • a new bit definition is added, and the added bit is used as a bit indicating a high-order modulation mode.
  • the bit for indicating the high-order modulation mode that is, 64QAM is 1 bit: when the bit is set to 0, it means that the 64QAM modulation mode is not used, and the modulation mode indicated by the original frame structure is used.
  • the modulation indicator bit is indicated;
  • the bit When the bit is set to 1, it indicates that the 64QAM modulation mode is used, the modulation indication bit of the original frame structure is ignored, and the high-order modulation mode of the current indication is used.
  • the step of configuring the capability class corresponding to the high-order modulation mode in the high-speed downlink shared channel physical layer classification information includes adding a classification suitable for QPSK, 16QAM, and 64QAM for the high-order modulation mode, that is, 64QAM, and correspondingly Define the transport block size of the classification and its index content.
  • the present invention also provides a method for implementing high-order modulation synchronization in a time division synchronous code division multiple access system, comprising the steps of: configuring a bit for indicating a high-order modulation mode in a frame structure of a high-speed shared control channel, and Adding capability information corresponding to the high-order modulation mode to the high-speed downlink shared channel physical layer classification information;
  • the terminal reports the information of the terminal supporting the high-order modulation and the capability information corresponding to the high-order modulation mode to the radio network controller by using the terminal capability report message;
  • the radio network controller sends, to the Node B, a radio link setup request message that uses the capability information corresponding to the high-order modulation mode;
  • the Node B returns to the radio network controller a radio link response message carrying an indication field of whether the terminal B supports downlink high-order modulation;
  • the radio network controller sends a radio bearer setup message to the terminal, and adds a field of the high-order modulation mode to the high-speed physical downlink shared channel information of the radio bearer setup message to notify the terminal that the high-speed shared control channel should be used. Frame structure. Further, the capability information corresponding to the high-order modulation mode is added to the high-speed downlink shared channel physical layer classification information, including the capability category corresponding to the high-order modulation mode, and the transport block size and index of the corresponding capability category. content.
  • the high order modulation is 64QAM, or 256QAM.
  • the synchronization method further includes:
  • the Node B uses the transport block size index of the high-order modulation corresponding class in the high-speed shared control channel under the condition that the channel quality is allowed, and notifies the terminal to use the high-order modulation mode in the current high-speed downlink shared channel by using the modulation mode indication bit. ;
  • the terminal receives the HS-SCCH control channel, and identifies the modulation mode of the current high-speed downlink shared channel according to a frame structure supporting high-order modulation:
  • the terminal When the indication field indicating the high-order modulation mode is set to true, the terminal performs demodulation using high-order modulation; otherwise, the terminal performs demodulation according to the modulation mode indicated by the modulation indication bit in the original frame structure.
  • the synchronization method further includes:
  • the Node B notifies the radio network controller of the support information of the local cell to the high-order modulation by using the audit response and/or the resource status indication message;
  • the radio network controller After obtaining the cell support high-order modulation, the radio network controller increases the user's access grant rate in the radio resource management, and/or comprehensively considers the capability information in the load control.
  • the node B After receiving the radio link setup request message, the node B adds a field of whether the node B supports the downlink 64QAM or 256QAM modulation indication in the radio link failure response if the radio link establishment fails.
  • a manner of configuring a bit in the frame structure of the high-speed shared control channel for indicating a high-order modulation mode includes:
  • a new bit definition is added, and the added bit is used as a bit indicating a high-order modulation mode. Further, the bit used to indicate a high-order modulation mode, that is, 64QAM or 256QAM For 1 bit:
  • the bit When the bit is set to 1, it indicates that the high-order modulation mode is used, the modulation indication bit of the original frame structure is ignored, and the high-order modulation mode of the current indication is used.
  • the step of configuring the capability class corresponding to the high-order modulation mode in the high-speed downlink shared channel physical layer classification information includes adding a classification suitable for QPSK, 16QAM, and 64QAM for the high-order modulation mode, that is, 64QAM, and correspondingly Define the transport block size and its index content for these categories.
  • the invention supplements and improves the 3GPP standard protocol.
  • the HS-SCCH frame structure of the high-speed shared control channel is supported for the high-order modulation mode, and the high-order modulation of the network side and the terminal side is further realized.
  • the synchronization mode improves the transmission rate of the high-speed downlink packet access service in the TD-SCDMA system.
  • FIG. 1 is a schematic diagram of the process of the invention. Preferred embodiment of the invention
  • the HS-SCCH channel can only support 16QAM and QPSK modulation modes, and cannot indicate high-order 64QAM in the HS-SCCH (High Speed Shared Control Channel) frame structure.
  • the modulation method and the problem that the network side and the terminal side cannot synchronize the high-order modulation mode, and the present invention provides a method for supporting high-order modulation, and a method for realizing high-order modulation synchronization on the network side and the terminal side, particularly in the TD-SCDMA system. .
  • the lbit identification modulation mode is used, wherein the bit value is set to 0 to indicate that the modulation mode is QPSK, and the bit value is set to 1 to indicate 16QAM.
  • unused bits in the HS-SCCH frame structure may be utilized to indicate a high-order modulation mode. For example, a reserved bit of 1 bit may be used to indicate a 64QAM modulation mode, and the reserved bit is set.
  • a value of 0 indicates that the 64QAM modulation mode is not used, and the modulation mode indicated by the previous modulation bit is indicated; the reserved bit is set to 1 to indicate that the 64QAM modulation mode is used, and the previous modulation indication bit is ignored, and the high order of the current indication is used. Modulation.
  • the number of bits indicating the modulation mode is increased by one bit to enable it to represent a modulation scheme other than QPSK and 16QAM, such as high-order modulation 64QAM.
  • the number of added bits is not limited to 1 bit, and may be multiple bits; the added bit may be an unused reserved bit, the definition of the existing bit may be changed, and a bit definition may be added for use. Indicates the high-order modulation method.
  • the capability class corresponding to the high-order modulation mode is added, and the transport block size (TBSize) of the new capability class and its index content are correspondingly increased.
  • classifications 1 to 3 are only applicable to QPSK modulation methods, and classifications 4 to 15 are applicable to QPSK and 16QAM.
  • classifications 16 to 24 In order to support the high-order modulation mode in the HSDPA service, it is necessary to classify 16 to 24 for the high-order modulation mode, that is, 64QAM, which is applicable to QPSK, 16QAM, and 64QAM. Accordingly, the transport block size ( TBSize ) of the classifications 16 to 24 and its TBSize index need to be defined.
  • the HS-DSCH physical layer is essentially the same as the HS-PDSCH channel in the background art.
  • the HS-DSCH physical layer is mainly used in the upper layer "transport layer” of the physical layer, and the HS- The PDSCH channel is mainly used when describing the physical layer concept.
  • the following is a unified description using the HS-DSCH physical layer.
  • the supplemental definition configuration of the existing 3GPP protocol content in the above one or two enables the high-speed shared control channel HS-SCCH (High Speed Shared Control Channel) to support the high-order modulation mode.
  • HS-SCCH High Speed Shared Control Channel
  • the synchronization method includes the following steps:
  • Step 101 The terminal reports the terminal capability information to the radio network controller RNC, where the message reporting message carries information indicating whether the terminal supports high-order modulation, that is, 64QAM.
  • the capability message reported by the terminal includes physical channel capability information, and the physical channel capability information further includes physical layer classification information.
  • the indication field of whether the terminal supports the high-order modulation is added to the physical channel capability information, that is, whether the terminal can demodulate the indication field of the HS-DSCH 64QAM.
  • the terminal supports the high-order modulation mode, that is, the 64QAM modulation mode is supported, when the terminal reports the capability to the network side, the added 64QAM indication field in the physical channel capability information is set to true, and the physical channel capability information is used.
  • the HS-DSCH physical layer classification information reports specific 64QAM capability information.
  • Step 102 When the terminal establishes a connection process with the network side, the RNC sends a radio link setup request message to the Node B (NodeB), and the HS-DSCH physical layer classification information in the radio link setup request message.
  • the 64QAM capability class ie, classes 16 to 24
  • the 64QAM capability class defined by the supplement of the present invention is used to inform the NodeB that the terminal supports 64QAM capability information.
  • Step 103 The NodeB returns a radio link response message to the RNC, and adds an indication field of the NodeB to the terminal to support downlink 64QAM modulation in the radio link response message.
  • radio link setup fails, it is also necessary to add in the radio link failure response whether the NodeB supports the field of the downlink 64QAM modulation indication.
  • Step 104 When the air interface radio bearer is established in the connection process between the terminal and the network side, the RNC sends a radio bearer setup message to the terminal, and adds whether to use the 64QAM modulation mode in the HS-PDSCH information of the radio bearer setup message. Field to inform the terminal which HS-SCCH frame structure to use.
  • the terminal side and the wireless connection establishment process are realized. Synchronization of the modulation method on the network side. That is, the terminal and the node B complete the negotiation process of the high-order modulation mode, and based on this, when the two parties perform the HSDPA service, the high-order modulation mode can be used to implement the service.
  • the NodeB dynamically calculates the current signal-to-noise ratio and other parameters, and uses 6-bit bits in the HS-SCCH control channel under the condition that the channel quality allows.
  • the number identifies the 64QAM new class TBSize index, and uses the HS-SCCH control channel 64QAM modulation mode indicator bit defined in this patent to inform the UE that the current HS-DSCH uses the 64QAM modulation mode.
  • the UE receives the HS-SCCH control channel and identifies the current HS-DSCH modulation mode according to the frame structure supporting the high-order modulation.
  • the indication bit indicating that the 64QAM is set to true, the UE uses the high-order modulation to perform demodulation. Demodulation is performed according to the modulation mode indicated by the modulation bit in the original frame structure.
  • the frame structure of the high-order modulation and the physical layer classification information added for the high-order modulation are supported based on the newly defined HS-SCCH channel, so that the high-speed sharing control is performed.
  • the channel HS-SCCH can support high order modulation.
  • the Node B can also notify the RNC of its own support information for the high-order modulation 64QAM by signaling.
  • the node B sends an audit response and/or a resource status indication message to the RNC, and adds an indication field of 64QAM to the audit response and/or the resource status indication message, that is, adding
  • the local cell supports the capability field of downlink 64QAM modulation.
  • the wireless network controller RNC can increase the user's access grant rate in RRM (Radio Resource Management) after receiving the high-order modulation of the cell. In the load control, the capability information can also be considered.
  • RRM Radio Resource Management
  • the present invention uses 64QAM as an example for detailed description, but is not limited thereto.
  • 64QAM For higher-order modulation modes, such as 256QAM implementation, reference may be made to the specific implementation of 64QAM, specifically, the modulation indication bit of 256QAM and HS are required.
  • -DSCH channel physical layer classification information when the modulation mode is synchronized between the network side and the terminal side, the 256QAM indication information and the classification capability information may be exchanged according to the above procedure.
  • a method for supporting high-order modulation and realizing high-order modulation synchronization on the terminal side and the network side in the time division synchronous code division multiple access system disclosed by the present invention compensates for the shortcomings of the existing 3GPP protocol, can increase the transmission rate of HSDPA, and opens up a larger commercial prospect for TD-SCDMA systems.

Abstract

L'invention propose un procédé pour prendre en charge une modulation d'ordre élevé dans le système d'accès multiple par répartition en code synchrone et répartition dans le temps (TD-SCDMA), ainsi qu'un procédé pour mettre en œuvre la synchronisation de modulation d'ordre élevé entre le côté terminal et le côté réseau. En premier lieu, dans la structure de trame du canal de commande partagé à grande vitesse, des bits pour indiquer la manière de la modulation d'ordre élevé sont configurés, et dans les informations de classe de couche physique du canal partagé de liaison descendante physique à grande vitesse, les types de capacité correspondant à la manière de la modulation d'ordre élevé sont configurés, et la taille de bloc de transport du type de capacité et son contenu d'index sont ajoutés. Durant l'établissement de la liaison radio, la manière de la modulation d'ordre élevé utilisée par le canal HS-DSCH est synchronisée entre le côté terminal et le côté réseau dans le but d'obtenir le service d'accès par paquets en liaison descendante à grande vitesse.
PCT/CN2007/071110 2007-11-21 2007-11-21 Procédé pour prendre en charge la modulation d'ordre élevé et la synchronisation dans le système d'accès multiple par répartition en code synchrone et répartition dans le temps WO2009065273A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2007801002445A CN101933265A (zh) 2007-11-21 2007-11-21 时分同步码分多址系统中支持高阶调制以及同步的方法
PCT/CN2007/071110 WO2009065273A1 (fr) 2007-11-21 2007-11-21 Procédé pour prendre en charge la modulation d'ordre élevé et la synchronisation dans le système d'accès multiple par répartition en code synchrone et répartition dans le temps

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Application Number Priority Date Filing Date Title
PCT/CN2007/071110 WO2009065273A1 (fr) 2007-11-21 2007-11-21 Procédé pour prendre en charge la modulation d'ordre élevé et la synchronisation dans le système d'accès multiple par répartition en code synchrone et répartition dans le temps

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WO2011120909A1 (fr) 2010-03-29 2011-10-06 Agc Glass Europe Vitrage resistant au feu
WO2012041230A1 (fr) * 2010-09-30 2012-04-05 华为技术有限公司 Procédé et équipement de modulation d'ordre supérieur pour équipement utilisateur à l'état de canal d'accès cellulaire descendant

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120909A1 (fr) 2010-03-29 2011-10-06 Agc Glass Europe Vitrage resistant au feu
WO2012041230A1 (fr) * 2010-09-30 2012-04-05 华为技术有限公司 Procédé et équipement de modulation d'ordre supérieur pour équipement utilisateur à l'état de canal d'accès cellulaire descendant

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