WO2007019807A1 - Method for implement hsdpa for td-scdma - Google Patents

Method for implement hsdpa for td-scdma Download PDF

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Publication number
WO2007019807A1
WO2007019807A1 PCT/CN2006/002101 CN2006002101W WO2007019807A1 WO 2007019807 A1 WO2007019807 A1 WO 2007019807A1 CN 2006002101 W CN2006002101 W CN 2006002101W WO 2007019807 A1 WO2007019807 A1 WO 2007019807A1
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WIPO (PCT)
Prior art keywords
carrier
user terminal
channel
physical channel
resource
Prior art date
Application number
PCT/CN2006/002101
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English (en)
French (fr)
Inventor
Yincheng Zhang
Zijiang Ma
Xuejun Yang
Zhifeng Ma
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.)
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Publication date
Priority claimed from CNB2005100909246A external-priority patent/CN100352243C/zh
Priority claimed from CNB2005101182328A external-priority patent/CN100393174C/zh
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to KR1020087005557A priority Critical patent/KR101256155B1/ko
Priority to EP06775419.2A priority patent/EP1916790B1/en
Priority to US12/063,872 priority patent/US7969948B2/en
Publication of WO2007019807A1 publication Critical patent/WO2007019807A1/zh
Priority to HK08108157.4A priority patent/HK1117666A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70718—Particular systems or standards
    • H04B2201/70722—HSDPA/HSUPA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0085—Timing of allocation when channel conditions change

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a multi-carrier high-speed downlink packet access implementation method for a Time Division Synchronization Code Division Multiple Access (TD-SCDMA) system.
  • TD-SCDMA Time Division Synchronization Code Division Multiple Access
  • An important feature of the third generation mobile communication system is the unbalanced traffic volume of the service and the downlink, and the traffic volume of the downlink is generally larger than that of the uplink.
  • the 3GPP (3rd Generation Partnership Project) introduced the HSDPA (High Speed Downlink Packet Access) feature in the 3G specification.
  • the AMC technology determines the current channel capacity according to the channel condition (channel state information CSI), determines an appropriate code modulation mode according to the capacity, etc., in order to maximize the transmission of information to achieve a relatively high rate; and, for each user's channel quality change AMC can provide a corresponding modulation and coding scheme to improve the transmission rate and spectrum utilization.
  • HARQ is an error correction method that combines the traditional ARQ (Automatic Retransmission Request) technology with FEC (Forward Error Correction) technology.
  • the code sent by the sender can not only detect errors, but also have certain error correction capabilities. After the receiving end receives the information, if the error condition is within the error correction capability, the error correction is automatically performed. If the error correction capability of the error correcting code is exceeded, but can be detected, the receiving end feeds back the corresponding signal to the transmitting end, requesting to send. Reissue.
  • the HS-DSCH High Speed Downlink Shared Channel
  • MAC-hs High Speed Media Access Control sublayers
  • the network side MAC-hs. is implemented in the Node B and is used for data transmission of the HS-DSCH transmission channel.
  • each cell has a MAC-hs entity, and MAC-hs is not only completed.
  • HS-DSCH data processing and scheduling and is responsible for managing the management and allocation of HSDPA physical resources.
  • the MAC-hs includes functional entities such as flow control, scheduling/priority control, HARQ function, and TFRC selection (Transport Format and Resource Choice).
  • each UE corresponds to one HARQ entity, and performs N-Channel SAW (See And Wait) Protocol, that is, the HARQ entity executes N-channel-SAW. -HA Q agreement.
  • a HARQ entity corresponds to multiple HARQ processes.
  • a HARQ entity of one UE may include up to 8 HARQ processes, and different HARQ processes pass process ID (process ID).
  • Process ID process ID
  • logo One HS-DSCH TTI corresponds to one HARQ process.
  • one UE-MAC-hs entity includes HARQ function, distribution, reordering and decomposition function entities.
  • the HARQ entity and the HARQ entity in the Node B are peer entities, including the same number of HARQ processes, and each process is formed by a process Id and a process on the Node B side - a corresponding protocol entity for the MAC-hs PDU ( Protocol Data Unit) Reception of data packets. If the receiving end correctly receives the data, the ACK signal is fed back through the uplink HS-SICH channel (high-speed shared information channel) described below, and the HARQ process on the Node B side releases the data packet.
  • HS-SICH channel high-speed shared information channel
  • the soft data is buffered, and the NAK signal is fed back through the HS-SICH, and the transmitting side process retransmits the data packet, that is, the HARQ entity processes the MAC-hs PDU.
  • the data packet retransmission is performed by the process.
  • the newly introduced HS-DSCH transport channel is mapped to the newly introduced HS-PDSCH (High Speed Physical Downlink Shared Channel).
  • the HS-PDSCH channel is shared by multiple users in the cell in a time division or code division manner.
  • the transmission time interval TTI (Transmission Time Interval) of the HS-PDSCH is 5 ms.
  • the HS-PDSCH carries the user's service data, and the related control information for the HS-PDSCH reception is transmitted through the newly introduced accompanying HS-SCCH (High Speed Shared Control Channel), and the HS-SICH is used for the transmission of the uplink feedback information. .
  • the control information carried on the HS-SCCH channel includes: a HARQ Process ID, a redundancy version, a new data identifier, an HS-SCCH cyclic sequence number HCSN, a UE ID, a modulation mode MF, a transport block size identifier, and a physical channel resource;
  • the bearer feedback information on the SICH channel includes: a recommended modulation mode RMF, a recommended transport block size RTBS, and a correct transmission or not acknowledgement information ACK/NAK:.
  • RRC signaling the 3GPP also defines an uplink and downlink companion physical channel in R5 for carrying RRC signaling related to HSDPA.
  • the cell and the carrier frequency are corresponding.
  • the HSDPA-related channel resource allocation method in a single-carrier cell is: one HS-DSCH, multiple HS-SCCHs, and HS-SICH corresponding to each HS-SCCH.
  • the network side configures HS-DSCH resources for one UE, configure 1 ⁇ 4 HS-SCCHs to form one HS-SCCH set, and configure HS-SICH corresponding to each HS-SCCH.
  • each HS-DSCH TTI Node B transmits an HS-DSCH related control channel on one HS-SCCH channel, and the UE obtains the information by reading the channel, and is in the HS - Send feedback information on an HS-SICH channel corresponding to the SCCH.
  • an HS-SCCH is selected by the MAC-hs for use by the UE, that is, an HS-DSCH related control channel is sent to the UE on the HS-SCCH channel.
  • the UE On the UE side, if no HS-SCCH is allocated to the UE for its HS-SCCH set, the UE continuously monitors the HS-SCCH set, and compares the "UE identification" information on the HS-SCCH with the identity of the UE itself. From which the HS-SCCH actually allocated to the UE is searched until an HS-SCCH channel allocated to the UE is found, the next TTI starts, only the HS-SCCH is monitored and received, and the control information carried by it is used to receive the HS.
  • the above description is currently the HSPDA technology for the TD-SCDMA system in the 3GPP protocol.
  • the current TD-SCDMA system in the 3GPP protocol is a single carrier system, that is, one cell corresponds to one carrier frequency, and the spectrum width of a single carrier frequency is 1.6M.
  • TD-SCDMA adopts a relatively narrowband TDD method, the theory on a single carrier The peak rate can reach 2.8 Mbps, and the downlink peak rate that can be provided on a single carrier is low, which can not meet the operator's demand for high-speed packet data services in the future. Therefore, some technical improvements based on the single-carrier cell HSDPA technology are needed to meet the higher requirements of operators for high-speed packet data services.
  • Invention disclosure is a single carrier system, that is, one cell corresponds to one carrier frequency, and the spectrum width of a single carrier frequency is 1.6M.
  • the technical problem to be solved by the present invention is to provide a time division synchronous code division multiple access system with multiple carriers high
  • the W 200-speed downlink packet access implementation method is based on the high-speed downlink packet access of the single-carrier cell, and the multi-carrier cell is established, so that the data packet of the user's high-speed downlink packet can be simultaneously transmitted on multiple carriers.
  • the present invention provides a method for implementing multi-carrier high-speed downlink packet access in a time division synchronous code division multiple access system, including:
  • Step 1 the network side establishes a multi-carrier cell, and multiple carrier resources in the multi-carrier cell are uniformly managed and allocated as a whole on the network side;
  • Step 2 Configure a high-speed downlink physical shared channel HS-PDSCH resource on at least one carrier in the multi-carrier cell, and configure at least one pair of high-speed shared control channel HS-SCCH and a high-speed shared information channel HS-SICH physical channel pair resource, Simultaneously creating a high-speed media access control entity MAC-hs of the high-speed media access control sub-layer, managing channel resources on the carrier and the MAC-hs entity itself configuration;
  • Step 3 The network side allocates a high-speed downlink packet access resource HSDPA to the user terminal, and sends the HSDPA resource to the user terminal.
  • Step 4 The network side dynamically allocates the HSDPA resource on the at least one carrier to the user terminal for service data transmission.
  • the above method further comprising the step of: reporting, by the user terminal, the number of carriers of the high speed downlink physical shared channel HS-PDSCH that is simultaneously supported by the user terminal to the network side.
  • the above method is characterized in that it further comprises the step of releasing the HSDPA resource allocated to the user terminal.
  • the above method is characterized in that each of the high-speed shared control channels HS-SCCH in the step 2 and a high-speed shared information channel HS-SICH on the same carrier are fixedly configured in a pair.
  • the above method is characterized in that, in the step 3, the network side allocates the high speed downlink packet to access the HSDPA resource to the user terminal, and further includes:
  • Step 31 The RNC on the network side determines to allocate a multi-carrier HSDPA resource to the user terminal, and sends a request message to the node B.
  • Step 32 The MAC-hs entity in the network side Node B allocates the HS on the at least one carrier to the user terminal according to the number of carriers reported by the user terminal and the HS-DSCH service characteristic of the high speed downlink shared channel.
  • Step 33 The MAC-hs entity in the network side Node B allocates at least one pair for each carrier.
  • the HS-SCCH and HS-SICH physical channel pair resources are associated with the carrier, and are used to carry allocation control information and receive feedback information of the HS-PDSCH on the carrier.
  • the above method further comprising: - Step 34, the network side radio network controller allocates a concomitant dedicated channel resource on a carrier allocated by the user terminal.
  • sending the HSDPA resource to the user terminal in the step 3 further includes:
  • Step 35 The network side sends the HSDPA resource allocated to the user terminal to the user terminal through the wireless resource control RRC protocol of the IJu interface.
  • Step 36 The user terminal creates and configures a high-speed media access control entity MAC-hs, and configures a physical channel resource of the HSDPA resource and an accompanying dedicated channel resource.
  • the foregoing method is characterized in that: in the step 32, at least one pair of the HS-SCCH and HS-SICH physical channel pair resources associated with the carrier are allocated to each carrier only the HS-SCCH and the carrier on the carrier. HS-SICH physical channel pair resource.
  • the foregoing method is characterized in that: in the step 32, at least one pair of the HS-SCCH and HS-SICH physical channel pair resources associated with the carrier are allocated to the carrier as the HS-SCCH and HS on different carriers. - SICH physical channel pair resources, but the HS-SCCH and HS-SICH physical channel pair resources associated with all carriers of one user terminal are on the same carrier.
  • the above method is characterized in that, in the step 32, at least one pair of the HS-SCCH and the HS-SCCH and the HS-SCCH and the HS-SCCH physical channel pair resource which are associated with the carrier are allocated to each carrier.
  • the SICH physical channel pairs resources, and the HS-SCCH and HS-SICH physical channel pair resources associated with all carriers of one user terminal are also on different carriers.
  • step 4 further includes:
  • Step 41 The network side dynamically allocates the HSDPA resource on the at least one carrier for the user terminal.
  • Step 42 the network side offloads service data to the allocated at least one carrier for sending
  • Step 43 The user terminal searches for the HS-SCCH physical channel associated with each carrier;
  • Step 44 The user terminal receives the HS-PDSCH physical channel, and merges the at least one The service data on the carrier is a complete data stream.
  • step 42 when performing service data offloading, the hybrid automatic repeat request in the MAC-hs entity requests the HARQ function entity to distinguish multiple carriers while independently processing multiple HAPQs on each carrier.
  • the protocol process, the HARQ protocol process on each carrier is distinguished by a carrier attribute, where each protocol process is identified by a carrier identifier and a process ID, and the HARQ process with the same carrier and the same process ID in the network side Node B and the user terminal One-to-one correspondence.
  • the above method is characterized in that, in the split transmission process, the network side Node B sends the HARQ process number on each carrier to an HS-SCCH channel associated with the carrier allocated to the user terminal to The user terminal; on the user terminal side, the user terminal sends feedback information to the Node B on the HS-SICH channel corresponding to the high speed shared control channel, including the acknowledgement information and channel quality indication information of whether the transmission is correct or not.
  • the above method is characterized in that, in the step 1, the network side establishes a multi-carrier cell, and the radio network controller RNC initiates the cell establishment process and the common transmission channel establishment process in the Node B application protocol to the Node B through the Iub interface. .
  • the above method is characterized in that, in the step 2, the step of configuring a high-speed physical downlink shared channel resource on at least one carrier, the RNC initiating the physical shared channel reconfiguration process in the NBAP protocol to the node B through the Iub interface;
  • the carrier information unit is added to the corresponding PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST message in the physical shared channel reconfiguration process to indicate on which carriers the HS-PDSCH physical channel resources are configured.
  • the foregoing method is characterized in that, in the step of allocating HSDPA resources to a user terminal, the RC initiates a radio link setup process and a synchronous radio reconfiguration preparation process or an asynchronous wireless link in the NBAP protocol to the Node B through the Iub interface.
  • Road reconfiguration process in the step of allocating HSDPA resources to a user terminal, the RC initiates a radio link setup process and a synchronous radio reconfiguration preparation process or an asynchronous wireless link in the NBAP protocol to the Node B through the Iub interface.
  • the carrier attribute information is added to indicate the HS-PDSCH physical channel resource to which the user terminal is allocated and its associated HS-SCCH and HS-SICH physical channel pair resources, and carriers to which HARQ configuration information belongs.
  • the above method is characterized in that the step of transmitting the allocated HSDP A resource to the user terminal in the step 3 is initiated by the RNC to initiate an RRC connection establishment procedure, a radio bearer setup procedure, and a radio bearer in the RRC protocol to the user terminal through the Uu interface.
  • the RRC CONNECTION SETUP corresponding to the RRC connection setup process, the radio bearer setup process, the radio bearer reconfiguration process, the radio bearer release process, the transport channel reconfiguration process, the physical channel reconfiguration process, and the cell update process implementation process Adding carrier attribute information to the "RADIO BEARER SETUP”, “RADIO BEARER RECONFIGURATION”, “RADIO BEARER RELEASE”, “TRANSPORT CHANNEL RECONFIGURATION”, “PHYSICAL CHANNEL RECONFIGURATION”, “CELL UPDATE CONFIRM” messages to indicate the assignment of the user terminal The HSDPA resource for each carrier.
  • the above method is characterized in that a carrier number information unit is further added to the message to indicate the number of carriers that the user terminal can use simultaneously.
  • the present invention allows one user by adopting multi-carrier HSDPA technology.
  • the HSDPA data packet can be transmitted on multiple carriers at the same time.
  • the NodeB can transmit on multiple carriers at the same time, and the UE can receive HSDPA data on multiple carriers. Therefore, in the case of multi-carrier, the single-user service rate can be greatly improved.
  • a single carrier can provide a peak service rate of 2.8 Mbps, and N carriers can simultaneously provide a service rate of up to NX2.8 Mbps.
  • the present invention not only solves the problem that the downlink peak rate that the single-carrier HSDPA technology can provide in the current TD-SCDMA system is low, in particular, greatly improves the peak rate of downlink traffic of a single user, and does not modify the channel characteristics of the relevant physical channel. It can be fully compatible with single carrier HSDPA technology in TD-SCDMA systems.
  • FIG. 1 is a flowchart of a method for implementing multi-carrier HSDPA in a TD-SCDMA system according to the present invention
  • FIG. 2 is a flowchart of a method for implementing multi-carrier HSDPA in an N-band TD-SCDMA system
  • FIG. 3 is a diagram in which a Node B dynamically allocates HSDPA resources for a user terminal.
  • FIG. 4 is a schematic diagram of a principle of a multi-carrier cell system according to the present invention.
  • FIG. 5 is a schematic diagram of HSDPA physical channel resource configuration in a 3-carrier N-frequency point cell;
  • FIG. 6 is a schematic diagram of a HSDPA resource configuration relationship of a TD-SCDMA system according to an embodiment of the present invention;
  • FIG. 7 is a diagram showing a HSDPA resource configuration relationship of a TD-SCDMA system according to Embodiment 2 of the present invention;
  • FIG. 8 is a third embodiment of the TD-SCDMA system HSDPA resource according to Embodiment 3 of the present invention; Configure the relationship diagram. The best way to implement the invention
  • FIG. 1 shows the main flow of the multi-carrier HSDPA implementation method of the TD-SCDMA system of the present invention, which includes:
  • Step S102 configuring a high-speed downlink physical shared channel HS-PDSCH resource on at least one carrier of the multi-carrier cell, and configuring at least one pair of high-speed shared control channel HS-SCCH and a high-speed shared information channel HS-SICH physical channel pair resource, Simultaneously creating a high-speed media access control entity MAC-hs of the high-speed media access control sub-layer, managing channel resources on the carrier and the MAC-hs entity itself configuration;
  • Step S103 the network side allocates a high-speed downlink packet access resource HSDPA to the user terminal, and sends the HSDPA resource to the user terminal.
  • Step S104 The network side dynamically allocates the HSDPA resource on the at least one carrier to the user terminal to perform service data transmission.
  • Step S105 Release the HSDPA resource allocated to the user terminal.
  • Step S201 establishing an N-frequency point cell.
  • the cell includes a primary carrier and a secondary carrier, and a common channel in the cell needs to be established on the primary carrier during cell establishment.
  • the process is initiated by the RC on the network side to the Node B through the lub interface to initiate the cell setup procedure and public in the NBAP protocol.
  • the Common Transport Channel Setup procedure is used to implement the initial configuration.
  • the radio network controller RNC may also re-configure the N-frequency cell by using a cell reconfiguration procedure and a common transport channel reconfiguration procedure in the NBAP protocol to the Node B through the lub interface.
  • its common channel please refer to 3GPP standard 25.433, or the communication industry standard "TD-SCDMA system lub interface technical specification _040906_vl" document of the People's Republic of China.
  • Step S202 The network side configures to configure HS-PDSCH physical channel resources and HS-SCCH and HS-SICH physical channel pair resources on one or more carriers in the foregoing cell, and create a MAC-hs entity.
  • the radio network controllers RNC and Node B uniformly manage and allocate a plurality of carrier resources in the N-frequency cell as a whole.
  • the process of configuring the HS-PDSCH physical channel resource on one or more carriers (including the primary carrier and the secondary carrier) in the N-frequency cell is initiated by the RNC to the Node B through the lub interface to initiate the physical shared channel reconfiguration process in the BAP protocol.
  • Node B receives "PHYSICAL SHARED"
  • a MAC-hs entity is created, which manages and allocates related HSDPA resources according to the configuration information in the message, including the HS-PDSCH physical channel and multiple pairs of HS-SCCH on all carriers. And HS-SICH physical channel pair Resources.
  • reconfiguration and deletion of HS-PDSCH physical channel resources and MAC-hs entities can also be implemented through a physical shared channel reconfiguration procedure.
  • Step S203 The user terminal reports its multi-carrier HSDPA capability to the network side, that is, reports the number of carriers of the high-speed downlink physical shared channel HS-PDSCH that it supports.
  • the user terminal UE When the user terminal UE establishes a connection with the network, or responds to the system query, the user terminal reports its multi-carrier HSDPA capability to the network side, that is, the carrier of the high-speed downlink physical shared channel HS-PDSCH that is simultaneously processed by multiple carriers supported by the user terminal. Number information.
  • the UE may report its multi-carrier HSDPA capability information to the R C during the RRC Connection Establishment process, or may report the RNC to the RNC during the UE's Transmission of UE capability information.
  • Step S204 allocating HSDPA resources to the user terminal.
  • the network side allocates HSDPA resources to the user terminal.
  • the process includes the initial establishment and redistribution process of the HSDPA resources, including:
  • RNC initiates radio link establishment in the BA protocol to the Node B through the lub interface (Radio Link)
  • the Reconfiguration Preparation process or the Unsynchronised Radio Link Reconfiguration procedure requests the Node B to allocate multi-carrier HSDPA resources for the user terminal.
  • "RADIO LINK SETUP REQUEST” "RADIO LINK SETUP REQUEST”
  • RECONFIGURATION PREPARE w and "RADIO LINK RECONFIGURATION REQUEST" messages in addition to other information known to those of ordinary skill in the art and information related to single carrier HSDPA technology, such as the QoS characteristics of the HS-DSCH service data stream of the user terminal, etc. It is also necessary to increase the multi-carrier HSDPA capability information of the user terminal.
  • the RC also selects for the user terminal to allocate accompanying dedicated channel resources on one carrier, including dedicated transport channels and dedicated physical channel resources.
  • the Node B After receiving the foregoing message, the Node B configures the associated dedicated channel resource according to the configuration information in the message, and the MAC-hs entity according to the QoS characteristics of the HS-DSCH service data flow of the user terminal and the multi-carrier HSDPA capability information of the UE And the status of the current cell HSDPA resource, the user terminal is allocated one or more HSDPA carrier resources, indicating the carrier to which the HS-PDSCH physical channel resource that may be allocated to the user terminal belongs, and the HS-PDSCH physical channel for each carrier Resource points One or more pairs of associated HS-SCCH and HS-SICH physical channel pair resources.
  • the Node B After the Node B completes the resource allocation and configuration related to the multi-carrier HSDPA technology described above, the Node B sends the "RADIO LINK SETUP RESPONSE" and "RADIO LINK" to the RNC.
  • RECONFIGURATION READY and "RADIO LINK RECONFIGURATION RESPONSE” messages.
  • the HSDPA technology-related resources are sent to the RNC.
  • carrier attribute information needs to be added to indicate the HS-PDSCH to which the user terminal is allocated.
  • the carrier to which the channel resource belongs and indicates the carrier and physical channel information of the HS-SCCH and HS-SICH physical channel pair resources associated with the HS-PDSCH physical channel on each carrier, and the configuration information of the HARQ functional entity.
  • the Node B may include and configure one carrier number information unit according to the capability of the user terminal and the number of carriers of the HS-PDSCH physical channel resource allocated to the user terminal. Indicates the number of carriers that the user terminal can use simultaneously, and the value is less than or equal to the number of carriers of all HS-PDSCH physical channel resources allocated to the user terminal.
  • Step S205 Send the allocated HSDPA resource to the user terminal.
  • the RNC sends the HSDPA resource allocated to a user terminal to the user terminal.
  • the process includes the initial establishment and redistribution process of the HSDPA resource, including:
  • the RNC After the RNC receives the HSDPA resource configuration information that the Node B allocates to the user terminal,
  • the configuration information allocated by the RNC itself is then sent to the user terminal through a related process in the RRC protocol of the Uu interface, including RRC connection establishment. , radio bearer establishment, radio bearer reconfiguration, radio bearer release, transport channel reconfiguration, physical channel Reconfiguration process (physical channel reconfiguration), cell modification, cell update, etc., in the corresponding "RRC CONNECTION SETUP”, “RADIO BEARER SETUP”, “RADIO BEARER RECONFIGURATION”, “RADIO BEARER RELEASE”, “TRANSPORT CHANNEL”RECONFIGURATION” , "PHYSICAL CHANNEL In the RECONFIGURATION", “CELL UPDATE CONFIRM” message, the capability of configuring HSDPA resources on multiple carriers needs to be provided, and the resources related to the multi-carrier HSDPA technology allocated to the user terminal on one or more carriers are sent to the UE.
  • the user terminal For each carrier, in addition to the single-carrier HSDPA technology-related information that is known to those of ordinary skill in the art, it is necessary to add carrier attribute information to indicate the carrier to which the HS-PDSCH physical channel resource of the user terminal belongs, and provide The configuration information of the HS-SCCH and the HS-SICH physical channel pair and the HARQ function entity associated with the HS-PDSCH physical channel resource on each carrier.
  • the number of carriers configured by the Node B may also be included to indicate the user terminal. The number of carriers that can be used simultaneously, the value is less than or equal to the number of carriers of all HS-PDSCH physical channel resources allocated to the user terminal.
  • the user terminal is also provided with configuration information of the dedicated physical channel resources, including the carrier. Information and physical channel information.
  • the user terminal After receiving the above message, the user terminal creates and configures one according to the configuration information in the message.
  • the MAC-hs entity configures the HSDPA-related physical channel resources and the accompanying dedicated channel resources and other resources, and sends a response message corresponding to the foregoing process to the R C according to the configuration result.
  • Step S206 The Node B dynamically allocates HSDPA resources on one or more carriers to the user terminal to perform service data transmission. As shown in FIG. 3, in this step, the following steps are further included: Step S2060: The Node B dynamically allocates HSDPA physical channel resources for the user terminal.
  • the MAC-hs entity receives the HS-DSCH service data sent from the RC to the user terminal according to the HS-DSCH service data traffic.
  • the priority of the user terminal and the service, the feedback information of the previously allocated HS-DSCH service data fed back by the UE, the HSDPA carrier resource allocated to the user terminal, and the load condition of the HS-PDSCH physical channel resource on the carriers In the one or more HSDPA carrier resources allocated to the user terminal, first determining an HS-PDSCH physical channel resource for the user terminal to allocate one or more carriers.
  • a suitable HS-PDSCH physical channel is then determined for each selected carrier and from the plurality of pairs of HS-SCCH and HS-SICH physical channel pairs associated with the HS-PDSCH physical channel resources on the carrier.
  • a pair is selected, and the HS-PDSCH physical channel information and other HSDPA-related configuration information allocated on the carrier are sent to the UE through the HS-SCCH channel, including the “user terminal identifier” information.
  • step S2061 the Node B offloads the service data to one or more carriers for transmission.
  • the number of carriers allocated by the MAC-hs entity for performing HS-DSCH service data transmission according to the above, and the HS-PDSCH on each allocated carrier The bearer capacity of the physical channel, the HS-DSCH service data is offloaded to each carrier for transmission.
  • the HARQ function entity in the MAC-hs entity receives the HS-DSCH service data that is MAC-hs offloaded to each carrier in units of carriers, and processes the data independently.
  • a UE has a HARQ function entity in the MAC-hs entity of the Node B.
  • each carrier is separately configured, and the HARQ protocol on multiple carriers is independently processed, and the HARQ on each carrier is performed.
  • the protocol processing process can be distinguished by the carrier attribute.
  • the HARQ protocol processing on each carrier can include multiple HARQ processes.
  • the HARQ process number configuration is exactly the same as the single carrier HSDPA technology.
  • the process Id of the HARQ process on different carriers is separately and independently performed. Number, the carrier attribute of a process Id is associated with the HS-SCCH physical channel carrying the process Id information.
  • Carrier attribute of HS-PDSCH physical channel resource For the HARQ functional entity of the UE, the total number of HARQ processes needs to be increased accordingly. For each carrier, select one of the multiple HARQ processes configured for the carrier to perform HS-DSCH service data transmission on the carrier, where the process Id of the HARQ process passes the HS-PDSCH physical channel resource on the carrier. The HS-SCCH physical channel associated with and assigned to the UE is sent to the UE.
  • Step S2062 The user terminal searches for one or more HS-SCCH physical channels associated with each carrier.
  • the user terminal continuously monitors one or more pairs of HS-SCCH and HS-SICH physical channel pairs associated with the carrier for each carrier to which the HS-PDSCH physical channel is allocated according to the configuration information.
  • the plurality of HS-SCCH channels are compared with the identifier of the user terminal by reading the "user terminal identifier" information on the HS-SCCH channel, and one of the identifiers is searched for, and only one identifier is the same, that is, the user terminal is actually allocated to the user terminal.
  • HS-SCCH channel is compared with the identifier of the user terminal by reading the "user terminal identifier" information on the HS-SCCH channel, and one of the identifiers is searched for, and only one identifier is the same, that is, the user terminal is actually allocated to the user terminal.
  • the user terminal At the beginning of the next , only the HS-SCCH is monitored and received in one or more HS-SCCH channels associated with the carrier, until at a certain TTI, the user terminal cannot read the user corresponding to itself in the HS-SCCH. If the terminal identifies, or cannot read the HS-SCCH, the user terminal continuously searches for one or more HS-SCCH channels associated with the carrier until a TTI finds another HS-SCCHo allocated to the user terminal again.
  • Step S2063 The user terminal receives the HS-PDSCH physical channel, and combines the service data on one or more carriers.
  • the HS-PDSCH physical channel is received on a carrier associated with the HS-SCCH channel.
  • the HARQ function entity performs HS-DSCH service data reception processing in units of carriers.
  • the user terminal side HARQ function entity separately configures each carrier separately, and simultaneously processes the HARQ protocol on multiple carriers independently, and the HARQ protocol processing process on each carrier can be Differentiated by the carrier attribute, the HARQ protocol processing on each carrier may include multiple HARQ processes.
  • the HARQ process number configuration is exactly the same as the single carrier HSDPA technology.
  • the process Id of the HARQ process on different carriers is numbered independently.
  • the carrier attribute of process Id is the carrier attribute of the HS-PDSCH physical channel resource associated with the HS-SCCH physical channel carrying the process Id information.
  • the carrier information of each process Id and its HS-PDSCH physical channel associated with the HS-SCCH channel carrying the information is transmitted to the HARQ functional entity in units of TTI, and the HARQ functional entity separately processes each carrier on the carrier.
  • the feedback information about the HS-DSCH service data reception status is sent to the Node B on the same carrier HS-SICH physical channel corresponding to the HS-SCCH, including the correct transmission confirmation information ACK/NAK and the channel quality indicator (CQI).
  • the MAC-hs entity in the UE sorts, merges, and the like the HS-DSCH service data received on the HS-PDSCH physical channel on one or more carriers, and delivers it to the upper layer.
  • Step S207 releasing the HSDPA resource allocated to the user terminal
  • the RNC initiates the Synchronised Radio Link Reconfiguration Preparation in the BAP protocol through the Iub interface to the Node B, and the Unsynchronised Radio Link Reconfiguration process or the wireless link deletion.
  • the radio bearer reconfiguration, the radio bearer release, the transport channel reconfiguration, and the physical channel weight in the RRC protocol initiated by the RC to the UE through the Uu interface A process such as a physical channel reconfiguration command commands the UE to release HSDPA resources.
  • a process such as a physical channel reconfiguration command commands the UE to release HSDPA resources.
  • CCTrCH is the processing entity that encodes the combined transport channel, which is identical to the CCTrCH entity in the existing CCSA and 3GPP standards
  • MAC-d Flow MUX/De-MU is the HS in the MAC-hs entity - DSCH service split/merge entity.
  • the HS-PDSCH physical channel resources on each carrier can only be associated with one or more pairs of HS-SCCH and HS-SICH physical channel pairs on the carrier. Specifically, the following steps are included:
  • Step 1 Establish a 3-carrier N-frequency cell, the cell includes a primary carrier F1, and two secondary carriers F2 and F3;
  • Step 2 configuring HS-PDSCH physical channel resources and HS-SCCH and HS-SICH physical channel pair resources on all three carriers of the cell;
  • Step 3 The capability reported by the UE is a high-speed downlink physical shared channel that simultaneously processes 2 carriers; Step 4, as shown in FIG. 6, two HSDPA carrier resources of carriers F1 and F2 are allocated to the UE, and HS is allocated on the carrier F1.
  • the SCCH1/HS-SICH1 physical channel pair is associated with the HS-PDSCH physical channel resource on the carrier, and the HS-SCCH2/HS-SICH2 physical channel pair and the HS-PDSCH physical channel resource on the carrier are allocated on the carrier F2.
  • the HS-PDSCH physical channel resources on the carrier are fixedly associated with the HS-SCCH and HS-SICH physical channel pairs on one carrier.
  • Step 5 The RNC sends the HS-SCCH1/HS-SICH1 on the allocated carrier F1 and the HS-SCCH2/HS-SICH2 physical channel on the carrier F2 to the user terminal, and indicates the F1 allocated to the UE. And HS-PDSCH physical channel carrier resources on F2.
  • Step 6 The Node B dynamically allocates the HS-PDSCH physical channel resources on the carriers F1 and F2 for the user terminal to perform service data transmission. In this step, the following steps are further included:
  • Step 61 The Node B dynamically allocates HS-PDSCH1 l ln on the carrier F1 and the HS-PDSCH 21 ⁇ 2m physical channel resources on the carrier F1 to the UE, and sends them to the UE through the HS-SCCH1 and the HS-SCCH2 respectively;
  • Step 62 The MAC-hs in the Node B offloads the service data to the carriers F1 and F2, and independently performs coded combined transport channel CCTrCH processing, physical mapping and transmission on each carrier;
  • Step 63 The UE searches for the HS-SCCH1 and HS-SCCH2 physical channels associated with the listening carriers F1 and F2, respectively. If the UE identifiers on the HS-SCCH1 and HS-SCCH2 physical channels are the same as the XJE identifier, according to the HS-SCCH1 and The control information about the HS-PDSCH physical channel allocation on the HS-SCCH2 receives the HS-PDSCH1 ⁇ ln on the carrier F1 and the HS-PDSCH21 ⁇ 2m physical channel on the carrier F2, respectively;
  • Step 64 The UE receives the HS-PDSCH1 l ⁇ ln and the carrier F2 on the carrier F1, respectively.
  • the HS-PDSCH 21 ⁇ 2m physical dispatch, and the physical channel mapping and CCTrCH processing are performed independently, and then the MAC-hs in the UE combines the service data received from the carriers F1 and F2 into one complete service data, and delivers it to the upper layer.
  • Step 7 If the UE requests, or the RNC determines, or the core network commands the RNC to release the HSDPA-related services and resources, the R C sends a related command to the Node B and the UE, respectively, and releases the HSDPA resource allocated to the user terminal.
  • the HS-PDSCH physical channel resource of each carrier may not be on the same carrier as the pair of HS-SCCH and HS-SICH physical channel pair resources associated with it.
  • the HS-SCCH and HS-SICH physical channel pair resources associated with all carriers of one UE are required to be on the same carrier.
  • the difference between the first step and the fifth step is as follows: Step 1, Step 2, Step 3, Step 6, Step 7 is the same as Embodiment 1, and is not described again. Step 4: As shown in Figure 7, the UE is allocated.
  • Two HSDPA carrier resources of carriers F1 and F2 are allocated, and HS-SCCH1/HS-SICH1 and HS-SCCH2/HS-SICH2 physical channel pairs are allocated on carrier F1, respectively, associated with carrier F1 and carrier F2.
  • the carrier information of each HS-SCCH and HS-SICH physical channel pair needs to be configured in the corresponding message of the lub and the Uu interface, and the associated carrier information of the physical channel pair needs to be configured.
  • the associated carrier information indicates that the assignment is to the One or more HS-PDSCH physical channel carrier resources of the UE.
  • Step 5 R C will allocate HS-SCCH1/HS-SICHl on carrier F1 and
  • the HS-SCCH2 HS-SICH2 physical channel pair resource information including its own frequency information F1, is sent to the UE, and the HS-SCCH1/HS-SICH1 associated carrier F1 and the HS-SCCH2/HS-SICH2 associated carrier F2 are respectively sent to UE.
  • the HS-PDSCH physical channel resource of each carrier may not be on the same carrier as the pair of HS-SCCH and HS-SICH physical channel pair resources associated with it.
  • the HS-SCCH and HS-SICH physical channel pair resources associated with all carriers of a UE may also be on different carriers. details as follows:
  • Step 1 The capability reported by the UE is a high-speed downlink physical shared channel that simultaneously processes 3 carriers; Step 4, as shown in FIG.
  • the UE is allocated three FSD, F2 and F3 HSDPA carrier resources, and the HS-SCCH1/HS-SICH1 physical channel pair is allocated on the carrier F1 to be associated with the carrier F1, and the HS-SCCH2/HS- is allocated on the carrier F2.
  • the SICH2 and HS-SCCH3/HS-SICH3 physical channel pairs are associated with carrier F2 and carrier F3, respectively.
  • Step 5 the RNC will allocate the HS-SCCH1/HS-SICH1 on the carrier F1, on the carrier F2
  • the HS-SCCH2/HS-SICH2 and HS-SCCH3/HS-SICH3 physical channel pair resource information, including its own frequency information F1, is sent to the UE, and HS-SCCH1/HS-SICH1 is associated with the carrier Fl, HS-SCCH2 HS, respectively.
  • the carrier F2 associated with the SICH2 and the carrier F3 associated with the HS-SCCH3/HS-SICH3 are transmitted to the UE.
  • Step 62 The MAC-hs in the Node B offloads the service data to the carriers F1, F2, and F3. CCTrCH processing, physical mapping and transmission are performed independently on each carrier;
  • Step 63 The UE searches for the HS-SCCH1 associated with the monitoring carriers F1, F2 and F3, respectively.
  • HS-SCCH2 and HS-SCCH3 physical channels if the UE identifiers on the HS-SCCH1, HS-SCCH2 and HS-SCCH3 physical channels are the same as the current UE identity, then according to HS-SCCH1, HS-SCCH2 and HS-SCCH3
  • the HS-PDSCH physical channel allocation control information is respectively received by HS-PDSCH11 ⁇ ln on carrier F1, and on HS-PDSCH21 ⁇ 2n physical channel and carrier F3 on carrier F2.
  • Step 64 The UE receives the HS-PDSCH1 l ⁇ ln on the carrier F1, respectively, on the carrier F2.
  • the method for implementing multi-carrier HSDPA technology in the TD-SCDMA system not only solves the problem that the downlink peak rate that the single-carrier HSDPA technology can provide in the current TD-SCDMA system is low, especially the downlink service of the single user is greatly improved.
  • the peak rate, and without modifying the channel characteristics of the relevant single-carrier HSDPA physical channel can be fully compatible with the single-carrier HSDPA technology in the TD-SCDMA system, and is particularly suitable for the current N-band TD-SCDMA system.

Description

时分同步码分多址系统多载波高速下行分组接入实现方法 技术领域
本发明涉及移动通讯领域， 特别是用于时分同步码分多址（Time Division Synchronization Code Division Multiple Access， TD-SCDMA )系统的一种多载 波高速下行分组接入实现方法。 背景技术
第三代移动通信系统的一个重要特点是业务上、下行链路的业务量的不平 衡性，下行链路的业务量将普遍大于上行链路的业务量。针对这个需求， 3GPP (3rd Generation Partnership Project, 第三代合作方案） 在 3G规范中引入了 HSDPA (High Speed Downlink Packet Access, 高速下行分组接入）特性。
在 HSDPA特性中， 通过引入 AMC (Adaptive Modulation and Coding, 自 适应编码调制）、 HARQ (Hybrid Automatic Retransmission Request, 混合自云力 重传请求）技术以及相关的减小网络处理时延的技术，来提供更高速率的下行 分组业务速率， 提高频谱利用效率。
AMC技术根据信道的情况（信道状态信息 CSI)确定当前信道容量， 根 据容量确定合适的编码调制方式等， 以便最大限度的发送信息，实现比较高的 速率； 而且， 针对每一个用户的信道质量变化， AMC都能提供可相应变化的 调制编码方案， 从而提高了传输速率和频谱利用率。
HARQ是将传统的 ARQ (Automatic Retransmission Request, 自动重传请 求）技术和 FEC (Forward Error Correct, 前向纠错）技术相结合的一种纠错方 法。发送端发送的码不仅能够检测错误，而且还具有一定的纠错能力。接收端 接收信息以后，如果错误情况在纠错能力以内， 则自动进行纠错， 如果超出了 纠错码的纠错能力， 但是能够检测出来， 则接收端反馈给发送端相应的信号， 要求发送端重发。
在 HSDPA技术中， 新引入了 HS-DSCH (High Speed Downlink Shared Channel, 高速下行共享信道）和 MAC-hs (高速媒体访问控制）子层。在网络 侧 MAC-hs.在 Node B中实现， 用来进行 HS-DSCH传输信道的数据传输。 在 Node B 中， 每个小区具有一个 MAC-hs实体（entity) ， MAC-hs不仅完成 HS-DSCH数据处理和调度， 同时负责管理 HSDPA物理资源的管理和分配。 MAC-hs包括流量控制、调度 /优先级控制、 HARQ功能、 TFRC选择（Transport Format and Resource Choice, 传输格式和资源选择） 等功能实体。 在 Node B 侧的 MAC-hs实体中， 每个 UE对应一个 HARQ实体， 执行 N-Channel SAW (See And Wait) Protocol (N信道停等协议） ， 即该 HARQ实体执行的是 N-channel-SAW-HA Q协议。一个 HARQ实体对应于多个 HARQ进程， 在目 前的 3GPP关于 TD-SCDMA的协议中， 一个 UE的 HARQ实体最多可包含 8 个 HARQ进程 (process) ， 不同的 HARQ进程通过 process ID (进程号） 来 标识。 一个 HS-DSCH TTI对应一个 HARQ进程。 在 UE侧， 一个 UE—个 MAC-hs实体，包括 HARQ功能、分发、重排序和分解功能实体。其中的 HARQ 实体与 Node B中的 HARQ实体是对等实体， 包括相同数目的 HARQ进程， 每个进程通过 process Id与 Node B侧的进程形成——对应的协议实体， 用于 MAC-hs PDU (协议数据单元）数据包的接收。如果接收端正确的接收的数据， 则通过下面描述的上行的 HS-SICH信道（高速共享信息信道）反馈 ACK信号， Node B侧的 HARQ进程释放该数据包。反之， 如果没能正确接收， 缓存软数' 据， 并通过 HS-SICH反馈 NAK信号， 发送侧进程重发该数据包， 即 HARQ 实体处理 MAC-hs PDU数据包重传是按进程进行的。
在 TD-SCDMA系统 HSDPA技术中， 新引入的 HS-DSCH传输信道被映 射到新引入的 HS-PDSCH (High Speed Physical Downlink Shared Channel, 高 速物理下行共享物理信道）上。 HS-PDSCH信道为小区内多个用户以时分或者 码分的方式共享。 HS-PDSCH的传输时间间隔 TTI( Transmission Time Interval) 是 5ms。 HS-PDSCH承载的是用户的业务数据， 而用于 HS-PDSCH接收的相 关控制信息通过新引入的伴随的 HS-SCCH (高速共享控制信道） 来传输， HS-SICH用于上行反馈信息的传递。 因此， 这三种物理信道组成一个物理层 闭环， 它们都是 5ms的 TTI为单位进行处理和传输， 这种较短的 TTI可更好 地自适应无线链路的时变特性。 其中 HS-SCCH信道上承载的控制信息包括： HARQ Process ID. 冗余版本、 新数据标识、 HS-SCCH循环序列号 HCSN、 UE ID, 调制方式 MF、 传输块大小标识以及物理信道资源； HS-SICH信道上 承载反馈信息包括： 推荐的调制方式 RMF、 推荐的传输块大小 RTBS以及数 据的正确传输与否确认信息 ACK/NAK：。 除此之外， 为了 RRC信令的传送， 3GPP在 R5中还定义了上下行的伴随物理信道， 用于承载跟 HSDPA相关的 RRC信令。
根据目前的 3GPP协议， 在 TD-SCDMA系统中， 小区和载频——对应。 单载波小区中的 HSDPA相关的信道资源配置方法为： 1条 HS-DSCH, 多条 HS-SCCH,与每条 HS-SCCH——对应的 HS-SICH。 当网络侧为一个 UE配置 HS-DSCH资源时， 配置 1〜4条 HS-SCCH, 构成 1个 HS-SCCH集， 同时配 置与每条 HS-SCCH——对应的 HS-SICH。在进行 HS-DSCH数据发送过程中， 每个 HS-DSCH TTI， Node B在一条 HS-SCCH信道发送 HS-DSCH相关的控 制信道， UE通过读取该信道来获得这些信息， 并在与该 HS-SCCH对应的一 条 HS-SICH信道上发送反馈信息。 在 Node B侧， 每个 HS-DSCH TTI， 针对 某个 UE， 由 MAC-hs选择一条 HS-SCCH给 UE使用， 即在该 HS-SCCH信道 上发送 HS-DSCH相关的控制信道给该 UE。在 UE侧，如果其 HS-SCCH集没 有一条 HS-SCCH分配给 UE使用， 则 UE连续监测这个 HS-SCCH集， 通过 读取 HS-SCCH上的 "UE标识"信息与 UE自身的标识相比较， 从中搜索被 实际分配给该 UE的那个 HS-SCCH，直到找到一条分配该 UE的 HS-SCCH信 道， 下一个 TTI开始， 只监测并接收该 HS-SCCH, 使用其承载的控制信息来 接收 HS- DSCH数据，并在该 HS-SCCH对应的一条 HS-SICH信道上发送反馈 信息， 直到在某个 TTI， UE在该 HS-SCCH不能读到与自己相符的 UE标识， 或不能读到该 HS-SCCH,则 UE重新监测被分配的 HS-SCCH集，值得找到分 配给该 UE的一条 HS-SCCH。
上述描述是目前 3GPP协议中关于 TD-SCDMA系统 HSPDA技术。然而， 目前 3GPP协议中的 TD-SCDMA系统是单载波系统， 即一个小区对应一个载 频， 单个载频的频谱宽度为 1.6M, 由于 TD-SCDMA采用相对窄带的 TDD方 式， 单个载波上的理论峰值速率可达到 2.8Mbps， 单个载波上可提供的下行峰 值速率偏低， 不能很好地满足运营商对将来高速分组数据业务的需求。 因此， 需要以单载波小区 HSDPA技术为基础进行一些技术改进， 以满足运营商对高 速分组数据业务更高的需求。 发明公开
本发明要解决的技术问题在于， 提供一种时分同步码分多址系统多载波高 W 200 速下行分组接入实现方法，在单载波小区高速下行分组接入的基础上，通过建 立多载波小区， 使用户的高速下行分组接入的数据包能同时在多个载波上传 输。
为达到上述目的，本发明提供的时分同步码分多址系统多载波高速下行分 组接入实现方法， 包括：
步骤 1， 网络侧建立一多载波小区， 该多载波小区中的多个载波资源在网 络侧作为一个整体统一管理和分配；
步骤 2，在所述多载波小区中至少一个载波上配置高速下行物理共享信道 HS-PDSCH资源，并配置至少一对高速共享控制信道 HS-SCCH和高速共享信 息信道 HS-SICH物理信道对资源， 同时创建高速媒体访问控制子层的高速媒 体访问控制实体 MAC-hs， 管理所述载波上的信道资源及该 MAC-hs实体自身 配置；
步骤 3， 网络侧分配高速下行分组接入资源 HSDPA给用户终端， 并发送 该 HSDPA资源给所述用户终端；
步骤 4， 网络侧动态地为用户终端分配至少一个载波上的所述 HSDPA资 源进行业务数据传输。
上述方法， 其特征在于，还包括：用户终端向网络侧报告其支持的同时处 理的高速下行物理共享信道 HS-PDSCH的载波个数信息的步骤。
上述方法， 其特征在于，还包括一释放所述分配给用户终端的 HSDPA资 源的步骤。
上述方法，其特征在于，所述步骤 2中的每条高速共享控制信道 HS-SCCH 和同一载波上某条高速共享信息信道 HS-SICH固定配置成一对。
上述方法， 其特征在于， 所述步骤 3 中网络侧分配高速下行分组接入 HSDPA资源给用户终端进一步包括：
步骤 31， 网络侧的 RNC确定为用户终端分配多载波 HSDPA资源， 并向 节点 B发送请求消息；
步骤 32， 所述网络侧节点 B中的 MAC-hs实体根据用户终端报告的载波 个数信息和高速下行共享信道 HS-DSCH业务特性为该用户终端分配所述至少 一个载波上的所述 HS-PDSCH物理信道传输业务数据；
步骤 33， 所述网络侧节点 B中的 MAC-hs实体为每个载波分配至少一对 所述 HS-SCCH和 HS-SICH物理信道对资源与该载波关联， 用来承载该载波 上的所述 HS-PDSCH的分配控制信息和接收反馈信息。
上述方法， 其特征在于， 还包括- 步骤 34， 所述网络侧无线网络控制器为所述用户终端分配的载波上分配 伴随的专用信道资源。
上述方法，其特征在于， 所述步骤 3中发送 HSDPA资源给所述用户终端 进一步包括：
步骤 35，网络侧将所述分配给用户终端的 HSDPA资源通过 IJu接口的无 线资源控制 RRC协议发送给该用户终端；
步骤 36，该用户终端创建并配置高速媒体访问控制实体 MAC-hs，配置所 述 HSDPA资源的物理信道资源和伴随的专用信道资源。
上述方法， 其特征在于， 所述步骤 32中为每个载波分配与该载波关联的 至少一对所述 HS-SCCH和 HS-SICH物理信道对资源仅为本载波上的所述 HS-SCCH和 HS-SICH物理信道对资源。
上述方法， 其特征在于， 所述步骤 32中为每个载波分配与该载波关联的 至少一对所述 HS-SCCH和 HS-SICH物理信道对资源为不同载波上的所述 HS-SCCH和 HS-SICH物理信道对资源，但一个用户终端的所有载波相关联的 HS-SCCH和 HS-SICH物理信道对资源在同一载波上。
上述方法， 其特征在于， 所述步骤 32中为每个载波分配与该载波关联的 至少一对所述 HS-SCCH和 HS-SICH物理信道对资源为不同的载波上的 HS-SCCH和 HS- SICH物理信道对资源，并且一个用户终端所有载波相关联的 HS-SCCH和 HS-SICH物理信道对资源也在不同载波上。
上述方法， 其特征在于， 所述步骤 4进一步包括：
步骤 41， 网络侧为用户终端动态分配所述至少一个载波上的 HSDPA资 源；
步骤 42， 所述网络侧将业务数据分流到所述分配的至少一个载波上进行 发送；
步骤 43，所述用户终端搜索监听每个载波相关联的所述 HS-SCCH物理信 道；
步骤 44，所述用户终端接收所述 HS-PDSCH物理信道，合并所述至少一个 载波上的业务数据成完整数据流。
上述方法， 其特征在于， 所述步骤 42在进行业务数据分流发送时， 所述 MAC-hs实体中的混合自动重传请求 HARQ功能实体区分多个载波同时独立 处理每个载波上的多个 HAPQ协议进程， 所述每个载波上的 HARQ协议进程 通过载波属性区分，所述每个协议进程由载波标识和进程号一起标识， 网络侧 节点 B和用户终端中载波相同且进程号相同的 HARQ进程一一对应。
上述方法，其特征在于，所述分流发送过程中， 所述网络侧节点 B将每 个载波上的所述 HARQ 进程号在分配给用户终端的与该载波相关联的 HS-SCCH信道上发送给该用户终端； 在用户终端侧， 用户终端通过在与高 速共享控制信道对应的 HS-SICH信道上发送反馈信息给节点 B， 包括正确 传输与否的确认信息与信道质量指示信息。
上述方法，其特征在于，所述步骤 1中网络侧建立一个多载波小区的步骤， 由无线网络控制器 RNC通过 Iub接口向节点 B发起节点 B应用协议中小区建 立过程和公共传输信道建立过程实现。
上述方法，其特征在于，所述步骤 2中在至少一个载波上配置高速物理下 行共享信道资源步骤， 由所述 RNC通过 Iub接口向节点 B发起 NBAP协议中 的物理共享信道重配置过程实现；
其中， 所述物理共享信道重配置过程相应的 " PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST"消息中增加载频信息单元， 以 指示在哪些载波上配置 HS-PDSCH物理信道资源。
上述方法， 其特征在于， 所述分配 HSDPA资源给用户终端的步骤， 由所 述 R C通过 Iub接口向节点 B发起 NBAP协议中的无线链路建立过程和同步 无线建立重配置准备过程或者异步无线链路重配置过程，
其中，在所述无线链路建立过程和同步无线建立重配置过程或异步无线链 路重配置过程相应的 "RADIO LINK SETUP REQUEST"， "RADIO LINK RECONFIGURATION PREPARE"和 "RADIO LINK RECONFIGURATION REQUEST"消息中， 增加用户终端的多载波 HSDPA能力信息。 在 " RADIO LINK SETUP RESPONSE"、 "RADIO LINK RECONFIGURATION READY" 和 "RADIO LINK RECONFIGURATION RESPONSE"消息中， 增加载波属性 信息， 以指示分配该用户终端的 HS-PDSCH物理信道资源及其相关联的 HS-SCCH和 HS-SICH物理信道对资源， 以及 HARQ配置信息所属的载波。 上述方法， 其特征在于， 所述步骤 3中发送分配的 HSDP A资源给用户终 端的步骤由所述 RNC通过 Uu接口向用户终端发起 RRC协议中的 RRC连接 建立过程、无线承载建立过程、无线承载重配置过程、无线承载释放过程、传 输信道重配置过程、 物理信道重配置过程、 小区更新过程实现；
其中， 在所述 RRC连接建立过程、 无线承载建立过程、 无线承载重配置 过程、无线承载释放过程、传输信道重配置过程、物理信道重配置过程、 小区 更新过程实现过程相应的 "RRC CONNECTION SETUP"、 "RADIO BEARER SETUP" 、 "RADIO BEARER RECONFIGURATION" 、 "RADIO BEARER RELEASE"、 "TRANSPORT CHANNEL RECONFIGURATION"、 "PHYSICAL CHANNEL RECONFIGURATION"、 "CELL UPDATE CONFIRM"消息中增 加载波属性信息， 以指示分配该用户终端的每个载波的所述 HSDPA资源。
上述方法，其特征在于，在所述消息中进一步增加一个载波个数信息单元， 用以指示该用户终端可以同时使用的载波个数。
与现有技术相比， 本发明通过采用多载波 HSDPA技术， 允许一个用户的
HSDPA的数据包能够同时在多个载波上传输， NodeB可以同时在多个载波上 发送， UE可以在多个载波上接收 HSDPA的数据。 因此多载波情况下， 可以 大大提高单用户的业务数率，理论上单个载波可以提供 2.8Mbps的峰值业务速 率， N个载波同时工作可以提供高达 NX2.8Mbps业务速率。
因此本发明不仅解决了目前 TD-SCDMA系统中的单载波 HSDPA技术可 提供的下行峰值速率偏低的问题，尤其是大大提高了单用户的下行业务峰值速 率， 而且没有修改相关物理信道的信道特性， 可以做到完全兼容 TD-SCDMA 系统中的单载波 HSDPA技术。 附图简要说明
图 1为本发明 TD-SCDMA系统多载波 HSDPA实现方法的流程图； 图 2为 N频点 TD-SCDMA系统多载波 HSDPA实现方法的流程图； 图 3为节点 B动态地为用户终端分配 HSDPA资源的流程图；
图 4为本发明多载波小区系统原理示意图；
图 5为 3载波的 N频点小区中的 HSDPA物理信道资源配置示意图； 图 6为本发明实施例一 TD-SCDMA系统 HSDPA资源配置关系图； 图 7为本发明实施例二 TD-SCDMA系统 HSDPA资源配置关系图； 图 8为本发明实施例三 TD-SCDMA系统 HSDPA资源配置关系图。 实现本发明的最佳方式
下面结合附图详细说明本发明的技术方案- 参考图 1， 该图示出了本发明 TD-SCDMA系统多载波 HSDPA实现方 法的主要流程， 其包括：
步骤 S101 , 网络侧建立一多载波小区， 该多载波小区中的多个载波资源 在网络侧作为一个整体统一管理和分配；
步骤 S102, 在所述多载波小区中至少一个载波上配置高速下行物理共享 信道 HS-PDSCH资源，并配置至少一对高速共享控制信道 HS-SCCH和高速共 享信息信道 HS-SICH物理信道对资源， 同时创建高速媒体访问控制子层的高 速媒体访问控制实体 MAC-hs，管理所述载波上的信道资源及该 MAC-hs实体 自身配置；
步骤 S103, 网络侧分配高速下行分组接入资源 HSDPA给用户终端， 并 发送该 HSDPA资源给所述用户终端；
步骤 S104,网络侧动态地为用户终端分配至少一个载波上的所述 HSDPA 资源进行业务数据传输；
步骤 S105, 释放所述分配给用户终端的 HSDPA资源。
本发明的多载波 HSDPA技术要在多个载波上配置高速下行物理共享信道 HS-PDSCH资源并进行统一管理分配，必须要求多个载波是可以作为一个整体 在一个系统中按某种方式进行统一管理和分配。 目前， N频点 TD-SCDMA系 统中满足这个需求。 在 N频点 TD-SCDMA系统中， 一个 N频点小区包括的 多个载波。 N频点小区中的多个载波在网络侧是以小区为单位进行统一管理， 多个载波中的一个载波为主载波，其它载波为辅载波，仅在主载波上建立和使 用公共信道。 因此， 可以在 N频点 TD-SCDMA系统中引入多载波 HSDPA技 术。 关于多载波系统的详细内容请参考中华人民共和国通信行业标准的 TD-SCDMA系统相关规范。
以 N频点 TD-SCDMA系统中为例结合附图详细说明一个完整的多载波 HSDPA资源的建立过程：
如图 2所示， 本发明的时分同步码分多址系统多载波高速下行分组接入实 现方法包括以下步骤：
步骤 S201 , 建立一个 N频点小区。
该小区包括主载波和辅载波，小区建立过程中需要在主载波上建立该小区 中的公共信道。 以现有 3GPP标准， 或者中华人民共和国通信行业标准为基础 (下面过程与此相同） ， 该过程由网络侧的 R C通过 lub接口向 Node B发起 NBAP协议中小区建立过程（Cell Setup procedure) 和公共传输信道建立过程 ( Common Transport Channel Setup procedure )来实现初始配置。 无线网络控 制器 RNC还可以通过 lub接口向 Node B发起 NBAP协议中小区重配置过程（Cell Reconfiguration procedure)禾口公共传输信道重配置过禾呈 ( Common Transport Channel Reconfiguration procedure)来重配置 N频点小区及其公共信道， 上述 过程的详细信息请参考 3GPP标准 25.433， 或者中华人民共和国通信行业标准 《TD-SCDMA系统 lub接口技术规范 _040906_vl》文档。
步骤 S202,网络侧配置在上述小区中的一个或多个载波上配置 HS-PDSCH 物理信道资源和 HS-SCCH和 HS-SICH物理信道对资源， '并创建 MAC-hs实体。
如图 4所示：在 N频点系统中，无线网络控制器 RNC和 Node B将 N频点小区 中的多个载波资源作为一个整体统一进行管理和分配。在 N频点小区中一个或 者多个载波 (包括主载波和辅载波)上配置 HS-PDSCH物理信道资源的过程由 RNC通过 lub接口向 Node B发起 BAP协议中物理共享信道重配置过程
( Physical Shared Channel Reconfiguration procedure )来实现， 在相应的 中， 除其它必要信息外， 需要提供在多个载波上配置 HSDPA资源的能力、。 寸 每个载波而言， 除本领域普通专业人士都了解的单载波 HSDPA技术相关信息 夕卜， 还需要为 HS-PDSCH物理信道增加提供载波信息， 以指示在那些载频上配 置 HS-PDSCH物理信道资源。
在物理共享信道重配置过程， Node B收到 "PHYSICAL SHARED
CHANNEL RECONFIGURATION REQUEST"消息后，创建一个 MAC-hs实体， 该 MAC-hs实体根据消息中配置信息来管理和分配相关的 HSDPA资源，其中包 括所有载波上的 HS-PDSCH物理信道和多对 HS-SCCH和 HS-SICH物理信道对 资源。
另外，还可以通过物理共享信道重配置过程来实现对 HS-PDSCH物理信道 资源和 MAC-hs实体的重配置和删除。
步骤 S203， 用户终端向网络侧报告其多载波 HSDPA能力， 即报告其支持 的同时处理的高速下行物理共享信道 HS-PDSCH的载波个数信息。
在用户终端 UE与网络建立连接， 或者响应系统査询时， 用户终端向网络 侧报告其多载波 HSDPA能力， 即用户终端支持的多个载波同时处理的高速下 行物理共享信道 HS-PDSCH的载波个数信息。 UE可以在无线连接建立（RRC Connection Establishment)过程中将其多载波 HSDPA能力信息报告给 R C的， 也可以在 UE能力信息传输（Transmission ofUE capability information)过程中 报告给 RNC。
步骤 S204， 分配 HSDPA资源给用户终端。
网络侧分配 HSDPA资源给用户终端， 该过程包括 HSDPA资源的初始建立 和重分配过程， 具体包括：
RNC通过 lub接口向 Node B发起 BA 协议中的无线链路建立（Radio Link
Setup) 过程、 同步无线链路重配置准备 （Synchronised Radio Link
Reconfiguration Preparation)过程或者异步无线链路重配置 (Unsynchronised Radio Link Reconfiguration)过程向 Node B请求为用户终端分配多载波 HSDPA 资源。 在 " RADIO LINK SETUP REQUEST" ， "RADIO LINK
RECONFIGURATION PREPARE w和 "RADIO LINK RECONFIGURATION REQUEST"消息中， 除其它本领域普通专业人士都了解的其它信息以及单载 波 HSDPA技术相关的信息外， 如该用户终端的 HS-DSCH业务数据流的 QoS特 性等， 还需要增加用户终端的多载波 HSDPA能力信息。 与此同时， R C还会 为用户终端选定在一个载波上分配伴随的专用信道资源，包括专用传输信道和 专用物理信道资源。
Node B在收到上述消息后，根据消息中的配置信息，配置伴随的专用信道 资源， 并且， MAC-hs实体根据用户终端的 HS-DSCH业务数据流的 QoS特性和 UE的多载波 HSDPA能力信息以及当前小区 HSDPA资源的状况，为用户终端分 配一个或者多个 HSDPA载波资源， 指示可能分配给该用户终端的 HS-PDSCH 物理信道资源所属的载波， 并且， 针对每个载波的 HS-PDSCH物理信道资源分 配一对或者多对相关联的 HS-SCCH和 HS-SICH物理信道对资源。
Node B在完成上述多载波 HSDPA技术相关的资源分配和配置后， Node B 给 RNC发送的 "RADIO LINK SETUP RESPONSE" 、 "RADIO LINK
RECONFIGURATION READY"和 "RADIO LINK RECONFIGURATION RESPONSE"消息。在消息中， 除其它必要信息外， 需要提供在多个载波上配 置 HSDPA资源的能力， 将在一个或者多个载波上为用户终端分配的多载波 HSDPA技术相关的资源发送给 RNC, 对每个载波而言， 除本领域普通专业人 士都了解的单载波 HSDPA技术相关的信息外， 需要增加载波属性信息， 以指 示分配该用户终端的 HS-PDSCH 理信道资源所属的载波，并指示出每个载波 上 HS-PDSCH物理信道相关联的 HS-SCCH和 HS-SICH物理信道对资源的载波 和物理信道信息， 以及 HARQ功能实体的配置信息。
• 另外， Node B在上述消息中除了包括上述分配的资源外，还可以根据用户 终端的能力以及给用户终端分配的 HS-PDSCH物理信道资源的载波个数，包括 并配置一个载波个数信息单元，指示该用户终端可以同时使用的载波个数，该 数值小于或者等于为该用户终端分配的所有 HS-PDSCH物理信道资源的载波 个数。
步骤 S205, 将分配的 HSDPA资源发送给用户终端。
RNC将分配给某个用户终端的 HSDPA资源发送给用户终端， 该过程包括 HSDPA资源的初始建立和重分配过程， 具体包括：
在 RNC接收到 Node B分配给该用户终端的 HSDPA资源配置信息后， 结合
RNC自身分配的配置信息，包括 HSDPA相关的资源配置信息及其它配置信息， 然后将这些信息通过 Uu接口的 RRC协议中的相关过程发送给用户终端， 这些 过程包括 R C连接建立过程 (RRC connection establishment) 、 无线承载建立 过程 (radio bearer establishment) 、 无线承载重配置过程 (radio bearer reconfiguration) 、 无线承载释方文过禾呈 (the radio bearer release) 、 传输信道重 配置过程 (transport channel reconfiguration) 、 物理信道重配置过程 (physical channel reconfiguration) 、 小区更 ,新过程 (cell update)等， 在相应的 "RRC CONNECTION SETUP"、 "RADIO BEARER SETUP"、 "RADIO BEARER RECONFIGURATION"、 "RADIO BEARER RELEASE" 、 "TRANSPORT CHANNEL RECONFIGURATION" 、 "PHYSICAL CHANNEL RECONFIGURATION"、 "CELL UPDATE CONFIRM"消息中， 需要提供在 多个载波上配置 HSDPA资源的能力， 将在一个或者多个载波上为该用户终端 分配的多载波 HSDPA技术相关的资源发送给 UE。 对每个载波而言， 除本领域 普通专业人士都了解的单载波 HSDPA技术相关的信息外， 需要增加载波属性 信息， 以指示分配该用户终端的 HS-PDSCH物理信道资源所属的载波， 并提供 与每个载波上的 HS-PDSCH物理信道资源相关联的 HS-SCCH和 HS-SICH物理 信道对以及 HARQ功能实体的配置信息。另外，还可以包含 Node B配置的载波 个数信息，指示该用户终端可以同时使用的载波个数，该数值小于或者等于为 该用户终端分配的所有 HS-PDSCH物理信道资源的载波个数。与此同时， 还为 用户终端提供专用物理信道资源的配置信息， 包括载波信息和物理信道信息。
用户终端接收到上述消息后， 根据消息中的配置信息创建并配置一个的
MAC-hs实体，配置 HSDPA相关的物理信道资源和伴随的专用信道资源及其它 资源， 并根据配置结果向 R C发送上述过程对应的响应消息。
步骤 S206， Node B动态地为用户终端分配一个或者多个载波上的 HSDPA 资源， 进行业务数据的传输。如图 3所示， 在该步骤中， 进一步包括下列步骤： 步骤 S2060， Node B为用户终端动态分配 HSDPA物理信道资源。
针对某个分配了 HSDPA资源的用户终端，在网络侧 Node B中， 以 TTI为单 位， MAC-hs实体从 R C接收发送给该用户终端的 HS-DSCH业务数据， 根据 HS- DSCH业务数据流量， 用户终端和业务的优先级， UE的反馈的对先前分配 的 HS-DSCH业务数据的接收情况信息， 上述分配给该用户终端的 HSDPA载波 资源及这些载波上的 HS-PDSCH物理信道资源的负荷情况，在上述分配给该用 户终端的一个或者多个 HSDPA载波资源中， 首先确定为该用户终端分配一个 或者多个载波的 HS-PDSCH物理信道资源。然后针对每个选择确定的载波， 确 定合适的 HS- PDSCH物理信道， 并从上述分配的与该载波上的 HS-PDSCH物理 信道资源相关联的多对 HS-SCCH和 HS-SICH物理信道对中选取一对， 通过其 中的 HS-SCCH信道将该载波上分配的 HS-PDSCH物理信道信息及其它 HSDPA 相关的配置信息发送给 UE， 其中包括 "用户终端标识"信息。
步骤 S2061， Node B将业务数据分流到一个或者多个载波上进行发送。 以 TTI为单位， 在网络侧 Node B中， MAC-hs实体根据上述分配的用来进 行 HS-DSCH业务数据传输的载波个数， 以及分配的每个载波上的 HS-PDSCH 物理信道的承载容量，将 HS-DSCH业务数据进行分流到每个载波上进行发送。 其中， MAC-hs实体中 HARQ功能实体以载波为单位接收 MAC-hs分流到 每个载波的 HS-DSCH业务数据， 并分别独立地进行处理。 一个 UE在 Node B的 MAC-hs实体中有一个 HARQ功能实体， 在该 HARQ功能实体中， 区分每个载 波分别进行配置， 并且同时独立处理多个载波上的 HARQ协议， 每个载波上的 HARQ协议处理进程可以通过载波属性加以区分， 每个载波上的 HARQ协议处 理可以包括多个数 HARQ进程， HARQ进程数配置与单载波 HSDPA技术完全相 同， 不同载波上的 HARQ进程的 process Id分开独立进行编号， 某个 process Id 的载波属性就是与承载该 process Id信息的 HS-SCCH物理信道相关联的
HS-PDSCH物理信道资源的载波属性。但对于该 UE的 HARQ功能实体， HARQ 进程个数总数需要相应的增加。 以 TTI为单位， 针对每个载波， 从配置给该载 波的多个 HARQ进程选择一个进行该载波上 HS-DSCH业务数据发送， 其中 HARQ进程的 process Id通过与该载波上 HS-PDSCH物理信道资源相关联的并 分配给该 UE的 HS-SCCH物理信道发送给 UE。
歩骤 S2062,用户终端搜索监听每个载波相关联的一条或者多条 HS-SCCH 物理信道。
以 ΤΉ为单位， 用户终端根据配置信息， 对于每个分配有 HS- PDSCH物理 信道的载波， 连续监测与该载波相关联的一对或者多对 HS-SCCH和 HS-SICH 物理信道对中一条或者多条 HS-SCCH信道， 通过读取 HS-SCCH信道上的 "用 户终端标识"信息与用户终端自身的标识相比较，从中搜索出一条且只有一条 标识相同的， 即被实际分配给该用户终端的 HS-SCCH信道。 下一个 ΤΉ开始， 在该载波相关联的一条或者多条 HS-SCCH信道中只监听并接收该 HS-SCCH, 直到在某个 TTI， 用户终端在该 HS-SCCH不能读到与自己相符的用户终端标 识， 或不能读到该 HS-SCCH, 则用户终端重新连续搜索与该载波相关联的一 条或者多条 HS-SCCH信道， 直到某个 TTI再次找到分配给该用户终端的一条 HS-SCCHo
另外，如果为该用户终端配置了可以同时使用的载波个数的信息，则当用 户终端搜索到的分配给该用户终端的 HS-SCCH信道个数与用户终端可以同时 使用的载波个数的信息单元配置的数值相同时，可以停止对分配给该用户终端 的与其它载波相关联的 HS-SCCH物理信道的搜索。 步骤 S2063, 用户终端接收 HS-PDSCH物理信道， 合并一个或者多个载波 上的业务数据
以 TTI为单位， 在用户终端侧， 针对其监测到分配给本用户终端并接收的 每一条 HS-SCCH物理信道， 根据该 HS-SCCH信道上的关于 HS-PDSCH物理信 道的控制信息在与该 HS-SCCH信道相关联的载波上接收 HS-PDSCH物理信道。
同时， 在 MAC-hs实体中 HARQ功能实体以载波为单位分别进行 HS-DSCH 业务数据接收处理。与 Node B中的该用户终端的 HARQ功能实体对应，用户终 端侧 HARQ功能实体区分每个载波分别进行配置，并且同时独立处理多个载波 上的 HARQ协议， 每个载波上的 HARQ协议处理进程可以通过载波属性加以区 分， 每个载波上的 HARQ协议处理可以包括多个数 HARQ进程， HARQ进程数 配置与单载波 HSDPA技术完全相同， 不同载波上的 HARQ进程的 process Id分 幵独立进行编号， 某个 process Id的载波属性就是与承载该 process Id信息的 HS-SCCH物理信道相关联的 HS-PDSCH物理信道资源的载波属性。 但整个 HARQ功能实体的 HARQ进程个数需要相应的增加。以 TTI为单位，每个 process Id及其与承载该信息的 HS-SCCH信道关联的 HS-PDSCH物理信道的载波信息 传送给 HARQ功能实体， HARQ功能实体以此来分别处理每个载波上的
HS-DSCH业务数据传输的 HARQ协议。 并且， 在 HS- SCCH对应的同一载波 HS-SICH物理信道上发送关于 HS-DSCH业务数据接收情况的反馈信息到 Node B， 包括正确传输与否确认信息 ACK/NAK和信道质量指示（CQI) 。
然后， UE中的 MAC-hs实体将从一个或者多个载波上的 HS-PDSCH物理信 道上接收到的 HS-DSCH业务数据进行排序、 合并等处理， 并递交给上层。
步骤 S207， 释放分配给用户终端的 HSDPA资源
RNC通过 Iub接口向 Node B发起 BAP协议中的同步无线链路重配置准备 ( Synchronised Radio Link Reconfiguration Preparation)过禾呈， 异步无线链路重 配置 (Unsynchronised Radio Link Reconfiguration)过程或者无线链路删除
(Radio Link Deletion)等过程， 删除分配给用户终端的 HSDPA资源。 R C通 过 Uu接口向 UE发起的 RRC协议中的无线承载重配置过程 （radio bearer reconfiguration) 、 无线承载释方夂过程 (the radio bearer release) 、 传输信道重 配置过程 (transport channel reconfiguration) 、 物理信道重配置过程 (physical channel reconfiguration)等过程， 命令 UE释放 HSDPA资源。 在上述分配 HSDPA资源给用户终端的步骤中,为每个载波上的 HS-PDSCH 物理信道资源分配一对或者多对 HS-SCCH和 HS-SICH物理信道对资源与之关 联时， 在不同的关联方法中， 相关物理信道配置和分配方法也不同。
下面以 3载波的 N频点小区为例， 参考图 5、 图 6、 图 7和图 8， 以不同 的实施例详细说明不同关联方法，相关物理信道配置和分配方法的不同，其中 图 6、 图 7和图 S中， CCTrCH是编码组合传输信道的处理实体， 该实体与现 有 CCSA 和 3GPP 标准中的 CCTrCH 实体完全相同； MAC-d Flow MUX/De-MU 是 MAC-hs实体中的 HS-DSCH业务分流 /合并实体。
实施例 1 :
在本实施例中， 以 N频点系统为基础， 每个载波上的 HS-PDSCH物理信道 资源只能与本载波上的一对或者多对 HS-SCCH和 HS-SICH物理信道对资源关 联。 具体包括以下步骤：
步骤一， 建立一个 3载波的 N频点小区， 该小区包括一个主载波 Fl， 2个辅 载波 F2和 F3 ;
步骤二， 在小区的所有 3个载波上都配置了 HS-PDSCH物理信道资源和 HS-SCCH和 HS-SICH物理信道对资源；
步骤三， UE上报的能力为同时处理 2个载波的高速下行物理共享信道； 步骤四， 如图 6所示， 为 UE分配了载波 F1和 F2两个 HSDPA载波资源， 在 载波 F1上分配了 HS-SCCH1/HS-SICH1物理信道对与该载波上的 HS-PDSCH物 理信道资源相关联， 在载波 F2上分配了 HS-SCCH2/HS-SICH2物理信道对与该 载波上的 HS-PDSCH物理信道资源相关联。在这种关联方式下， 由于一个载波 上 HS-SCCH和 HS-SICH物理信道对固定关联该载波上 HS-PDSCH物理信道资 源。 因此在 Iub和 Uu接口的相应消息中， 不需要其它的信息来指示 HS-SCCH和 HS-SICH物理信道对和某个载波的关联关系。在消息中，只需要配置一个或者 多个载波上的 HS-SCCH和 HS-SICH物理信道对资源信息， 包括载波信息和物 理信道信息。 其中的载波信息同时指示了分配给该 UE的一个或者多个
HS-PDSCH物理信道载波资源。
步骤五， RNC将分配的载波 F1上的 HS-SCCH1/HS-SICH1和载波 F2上的 HS-SCCH2/HS-SICH2物理信道对资源信息发送给用户终端， 同时指示了分配 给该 UE的 F 1和 F2上的 HS-PDSCH物理信道载波资源。 步骤六， Node B动态地为用户终端分配载波 Fl和 F2上的 HS-PDSCH物理信 道资源， 进行业务数据地传输。 在该步骤中， 进一步包括下列步骤：
步骤 61， Node B为用户终端动态分配载波 F1上的 HS-PDSCHl l〜ln和载 波 F2上的 HS-PDSCH21〜2m物理信道资源， 分别通过 HS-SCCH1和 HS-SCCH2 发送给 UE;
步骤 62， Node B中的 MAC-hs将业务数据分流到载波 F1和 F2上， 在每个 载波上独立进行编码组合传输信道 CCTrCH处理， 物理映射和发送；
步骤 63， UE分别搜索监听载波 F1和 F2相关联的 HS-SCCH1和 HS-SCCH2 物理信道， 如果 HS-SCCH1和 HS-SCCH2物理信道上的 UE标识与本 XJE标识相 同， 则根据 HS-SCCH1和 HS-SCCH2上的关于 HS-PDSCH物理信道分配的控制 信息分别接收载波 F1上的 HS-PDSCHl l〜ln和载波 F2上的 HS- PDSCH21〜2m 物理信道；
步骤 64， UE分别接收载波 F1上的 HS-PDSCH1 l〜ln和载波 F2上的
HS-PDSCH21〜2m物理信遣， 并独立进行物理信道映射和 CCTrCH处理， 然后 UE中的 MAC- hs将从载波 F1和 F2接收到的业务数据合并成一个完整的业务数 据， 递交给高层。
步骤七， 如果 UE请求， 或者 RNC确定， 或者核心网命令 RNC释放 HSDPA 相关业务和资源， 则 R C分别向 Node B和 UE发送相关命令， 释放分配给用户 终端的 HSDPA资源。
实施例 2:
在本实施例中， 以 N频点系统为基础， 每个载波的 HS-PDSCH物理信道资 源与其关联的一对或者多对 HS-SCCH和 HS-SICH物理信道对资源可以不在同 一个载波上， 但要求一个 UE的所有载波相关联的 HS-SCCH和 HS-SICH物理信 道对资源在同一个载波上。 与实施例 1区别在于步骤四和步骤五， 具体如下： 步骤一， 步骤二， 步骤三， 步骤六， 步骤七同实施例 1， 不再赘述； 步骤四， 如图 7所示， 为 UE分配了载波 F1和 F2两个 HSDPA载波资源， 在 载波 F1上分配了 HS-SCCH1/HS-SICH1和 HS-SCCH2/HS-SICH2物理信道对分 别与载波 F1和载波 F2相关联。 在这种关联方式下， 在 lub和 Uu接口的相应消息 中， 需要配置每个 HS-SCCH和 HS-SICH物理信道对本身的载波信息， 同时需 要配置该物理信道对关联的载波信息。 其中关联的载波信息指示了分配给该 UE的一个或者多个 HS-PDSCH物理信道载波资源。
步骤五， R C将分配的载波 F1上的 HS-SCCHl/HS-SICHl和
HS-SCCH2 HS-SICH2物理信道对资源信息， 包括其本身的频率信息 F1发送给 UE, 同时分别将 HS-SCCHl/HS-SICHl关联载波 F1和 HS-SCCH2/HS-SICH2关 联的载波 F2发送给 UE。
实施例 3 :
在本实施例中， 以 N频点系统为基础， 每个载波的 HS-PDSCH物理信道资 源与其关联的一对或者多对 HS-SCCH和 HS-SICH物理信道对资源可以不在同 一个载波上， 一个 UE的所有载波相关联的 HS-SCCH和 HS-SICH物理信道对资 源也可以在不同的载波上。 具体如下：
步骤一， 步骤二， 步骤七同实施例 1和实施例 2， 在此不再赘述； 步骤三， UE上报的能力为同时处理 3个载波的高速下行物理共享信道； 步骤四， 如图 8， 为 UE分配了载波 Fl， F2和 F3三个 HSDPA载波资源， 在 载波 F1上分配了 HS-SCCHl/HS-SICHl物理信道对与载波 F1相关联， 在载波 F2 上分配了 HS-SCCH2/HS- SICH2和 HS-SCCH3/HS-SICH3物理信道对分别与载 波 F2和载波 F3相关联。 在这种关联方式下， 在 lub和 Uu接口的相应消息中， 需 要配置每个 HS-SCCH和 HS-SICH物理信道对本身的载波信息， 同时需要配置 该物理信道对关联的载波信息。 其中关联的载波信息指示了分配给该 UE的一 个或者多个 HS-PDSCH物理信道载波资源。
步骤五， RNC将分配的载波 F1上的 HS-SCCH1/HS-SICH1， 载波 F2上的
HS-SCCH2/HS-SICH2和 HS-SCCH3/HS-SICH3物理信道对资源信息，包括其本 身的频率信息 F1发送给 UE， 同时分别将 HS-SCCHl/HS-SICHl关联载波 Fl， HS-SCCH2 HS-SICH2关联的载波 F2和 HS-SCCH3/HS-SICH3关联的载波 F3发 送给 UE。
步骤六， Node B动态地为用户终端分配载波 Fl， F2和 F3上的 HS-PDSCH 物理信道资源， 进行业务数据的传输。 该步骤进一步包括- 步骤 61， Node B为用户终端动态分配载波 F1上的 HS-PDSCHll〜ln， 载 波 F2上的 HS-PDSCH21〜2n和载波 F3上的 HS-PDSCH31〜3n物理信道资源，分 别通过 HS-SCCH1， HS-SCCH2和 HS-SCCH3发送给 UE;
步骤 62， Node B中的 MAC-hs将业务数据分流到载波 Fl， F2和 F3上， 在 每个载波上独立进行 CCTrCH处理， 物理映射和发送；
步骤 63， UE分别搜索监听载波 Fl， F2和 F3相关联的 HS-SCCH1 ,
HS-SCCH2和 HS-SCCH3物理信道， 如果 HS-SCCH1 , HS-SCCH2和 HS-SCCH3 物理信道上的 UE标识与本 UE标识相同， 则根据 HS-SCCH1 , HS-SCCH2和 HS-SCCH3上的关于 HS-PDSCH物理信道分配的控制信息分别接收载波 F1上 的 HS-PDSCH11〜 ln， 载波 F2上的 HS-PDSCH21〜2n物理信道和载波 F3上的
HS-PDSCH31〜3n物理信道；
步骤 64， ' UE分别接收载波 F1上的 HS-PDSCHl l〜ln， 载波 F2上的
HS-PDSCH21〜2n载波 F3上的 HS- PDSCH31〜3n物理信道， 并独立进行物理信 道映射和 CCTrCH处理， 然后 UE中的 MAC-hs将从载波 F1和 F2接收到的业务数 据合并成一个业务数据， 递交给高层。
当然，本发明还可有其他多种实施例，在不背离本发明精神及其实质的情 况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但 这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 工业应用性
本发明提供的 TD-SCDMA系统多载波 HSDPA技术实现方法， 不仅解决 了目前 TD-SCDMA系统中的单载波 HSDPA技术可提供的下行峰值速率偏低 的问题，尤其是大大提高了单用户的下行业务峰值速率，而且不用修改相关单 载波 HSDPA物理信道的信道特性， 可以做到完全兼容 TD-SCDMA系统中的 单载波 HSDPA技术， 特别适用于目前 N频点 TD-SCDMA系统。

Claims

权利 要求书
1、 时分同步码分多址系统多载波高速下行分组接入实现方法， 其特征在 于， 包括：
步骤 1， 网络侧建立一多载波小区， 该多载波小区中的多个载波资源在网 络侧作为一个整体统一管理和分配；
步骤 2，在所述多载波小区中至少一个载波上配置高速下行物理共享信道 HS-PDSCH资源，并配置至少一对高速共享控制信道 HS-SCCH和高速共享信 息信道 HS-SICH物理信道对资源， 同时创建高速媒体访问控制子层的高速媒 体访问控制实体 MAC-hs， 管理所述载波上的信道资源及该 MAC-hs实体自身 配置； '
步骤 3， 网络侧分配高速下行分组接入资源 HSDPA给用户终端， 并发送 该 HSDPA资源给所述用户终端；
步骤 4， 网络侧动态地为用户终端分配至少一个载波上的所述 HSDPA资 源进行业务数据传输。
2、 根据权利要求 1所述的方法， 其特征在于， 还包括： 用户终端向网络 侧报告其支持的同时处理的高速下行物理共享信道 HS-PDSCH的载波个数信 息的步骤。
3、 根据权利要求 1所述的方法， 其特征在于， 还包括一释放所述分配给 用户终端的 HSDPA资源的步骤。
4、 根据权利要求 1所述的方法， 其特征在于， 所述步骤 2中的每条高速 共享控制信道 HS-SCCH和同一载波上某条高速共享信息信道 HS-SICH固定 配置成一对。
5、 根据权利要求 1所述的方法， 其特征在于， 所述步骤 3中网络侧分配 高速下行分组接入 HSDPA资源给用户终端进一步包括：
步骤 31， 网络侧的 RNC确定为用户终端分配多载波 HSDPA资源， 并向 节点 B发送请求消息；
步骤 32， 所述网络侧节点 B中的 MAC-hs实体根据用户终端报告的载波 个数信息和高速下行共享信道 HS-DSCH业务特性为该用户终端分配所述至少 一个载波上的所述 HS-PDSCH物理信道传输业务数据； 步骤 33， 所述网络侧节点 B中的 MAC- hs实体为每个载波分配至少一对 所述 HS-SCCH和 HS-SICH物理信道对资源与该载波关联， 用来承载该载波 上的所述 HS-PDSCH的分配控制信息和接收反馈信息。
6、 根据权利要求 1或 5所述的方法， 其特征在于， 还包括：
歩骤 34， 所述网络侧无线网络控制器为所述用户终端分配的载波上分配 伴随的专用信道资源。
7、根据权利要求 1所述的方法，其特征在于，所述步骤 3中发送 HSDPA 资源给所述用户终端进一步包括：
步骤 35， 网络侧将所述分配给用户终端的 HSDPA资源通过 Uu接口的无 线资源控制 RRC协议发送给该用户终端；
歩骤 36，该用户终端创建并配置高速媒体访问控制实体 MAC-hs，配置所 述 HSDPA资源的物理信道资源和伴随的专用信道资源。
8、根据权利要求 1或 5所述的方法，其特征在于，所述步骤 32中为每个 载波分配与该载波关联的至少一对所述 HS-SCCH和 HS-SICH物理信道对资 源仅为本载波上的所述 HS-SCCH和 HS-SICH物理信道对资源。
9、根据权利要求 1或 5所述的方法，其特征在于，所述步骤 32中为每个 载波分配与该载波关联的至少一对所述 HS-SCCH和 HS-SICH物理信道对资 源为不同载波上的所述 HS-SCCH和 HS-SICH物理信道对资源， 但一个用户 终端的所有载波相关联的 HS-SCCH和 HS-SICH物理信道对资源在同一载波 上。
10、 根据权利要求 1或 5所述的方法， 其特征在于， 所述步骤 32中为每 个载波分配与该载波关联的至少一对所述 HS-SCCH和 HS-SICH物理信道对 资源为不同的载波上的 HS-SCCH和 HS-SICH物理信道对资源， 并且一个用 户终端所有载波相关联的 HS-SCCH和 HS-SICH物理信道对资源也在不同载 波上。
11、 根据权利要求 1所述的方法， 其特征在于， 所述步骤 4进一步包括: 步骤 41， 网络侧为用户终端动态分配所述至少一个载波上的 HSDPA资 源；
步骤 42， 所述网络侧将业务数据分流到所述分配的至少一个载波上进行 发送； 步骤 43，所述用户终端搜索监听每个载波相关联的所述 HS-SCCH物理信 道；
步骤 44，所述用户终端接收所述 HS-PDSCH物理信道,合并所述至少一个 载波上的业务数据成完整数据流。
12、根据权利要求 11所述的方法，其特征在于，所述步骤 42在进行业务 数据分流发送时， 所述 MAC-hs实体中的混合自动重传请求 HARQ功能实体 区分多个载波同时独立处理每个载波上的多个 HAPQ协议进程， 所述每个载 波上的 HARQ协议进程通过载波属性区分， 所述每个协议进程由载波标识和 进程号一起标识，网络侧节点 B和用户终端中载波相同且进程号相同的 HARQ 进程——对应。
13、 根据权利要求 12所述的方法， 其特征在于， 所述分流发送过程中， 所述网络侧节点 B将每个载波上的所述 HARQ进程号在分配给用户终端的 与该载波相关联的 HS-SCCH信道上发送给该用户终端； 在用户终端侧， 用 户终端通过在与高速共享控制信道对应的 HS- SICH信道上发送反馈信息给 节点 B， 包括正确传输与否的确认信息与信道质量指示信息。
14、根据权利要求 1所述的方法， 其特征在于， 所述步骤 1中网络侧建立 一个多载波小区的步骤， 由无线网络控制器 RNC通过 Iub接口向节点 B发起 节点 B应用协议中小区建立过程和公共传输.信道建立过程实现。
15、根据权利要求 1所述的方法， 其特征在于， 所述步骤 2中在至少一个 载波上配置高速物理下行共享信道资源步骤， 由所述 R C通过 Iub接口向节 点 B发起 NBAP协议中的物理共享信道重配置过程实现；
其中， 所述物理共享信道重配置过程相应的 " PHYSICAL SHARED CHA>J EL RECONFIGURATION REQUEST"消息中增加载频信息单元， 以 指示在哪些载波上配置 HS-PDSCH物理信道资源。
16、 根据权利要求 1所述的方法， 其特征在于， 所述分配 HSDPA资源给 用户终端的步骤， 由所述 RNC通过 Iub接口向节点 B发起 NBAP协议中的无 线链路建立过程和同步无线建立重配置准备过程或者异步无线链路重配置过 程；
其中，在所述无线链路建立过程和同步无线建立重配置过程或异步无线链 路重配置过程相应的 "RADIO LINK SETUP REQUEST"， "RADIO LINK RECONFIGURATION PREPARE"和 "RADIO LINK RECONFIGURATION REQUEST"消息中， 增加用户终端的多载波 HSDPA能力信息。 在 " RADIO LINK SETUP RESPONSE"、 "RADIO LINK RECONFIGURATION READY" 和 "RADIO LINK RECONFIGURATION RESPONSE"消息中， 增加载波属性 信息， 以指示分配该用户终端的 HS-PDSCH物理信道资源及其相关联的 HS-SCCH和 HS- SICH物理信道对资源， 以及 HARQ配置信息所属的载波。
17、根据权利要求 1所述的方法， 其特征在于， 所述步骤 3中发送分配的 HSDPA资源给用户终端的歩骤由所述 RNC通过 Uu接口向用户终端发起 RRC 协议中的 RRC连接建立过程、 无线承载建立过程、 无线承载重配置过程、 无 线承载释放过程、传输信道重配置过程、物理信道重配置过程、小区更新过程 实现；
其中， 在所述 RRC连接建立过程、 无线承载建立过程、 无线承载重配置 过程、无线承载释放过程、传输信道重配置过程、物理信道重配置过程、小区 更新过程实现过程相应的 "RRC CONNECTION SETUP"、 "RADIO BEARER SETUP" 、 "RADIO BEARER RECONFIGURATION" 、 "RADIO BEARER RELEASE"、 "TRANSPORT CHANNEL RECONFIGURATION" , "PHYSICAL CHANNEL RECONFIGURATION"、 " CELL UPDATE CONFIRM "消息中增 加载波属性信息， 以指示分配该用户终端的每个载波的所述 HSDPA资源。
18、如权利要求 16或 17所述的方法， 其特征在于， 在所述消息中进一步 增加一个载波个数信息单元， 用以指示该用户终端可以同时使用的载波个数。
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