WO2009089798A1 - Real-time service transmission method and resource allocation method - Google Patents

Real-time service transmission method and resource allocation method Download PDF

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Publication number
WO2009089798A1
WO2009089798A1 PCT/CN2009/070122 CN2009070122W WO2009089798A1 WO 2009089798 A1 WO2009089798 A1 WO 2009089798A1 CN 2009070122 W CN2009070122 W CN 2009070122W WO 2009089798 A1 WO2009089798 A1 WO 2009089798A1
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Prior art keywords
real
time service
terminal
base station
data packet
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PCT/CN2009/070122
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English (en)
French (fr)
Inventor
Yincheng Zhang
Hua Rui
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Zte Corporation
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40885074&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009089798(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to KR1020107016670A priority Critical patent/KR101126696B1/ko
Priority to EP09702409A priority patent/EP2234426B1/en
Priority to US12/744,250 priority patent/US8385283B2/en
Priority to JP2010542503A priority patent/JP2011510544A/ja
Publication of WO2009089798A1 publication Critical patent/WO2009089798A1/zh
Priority to HK10110141.5A priority patent/HK1143687A1/xx
Priority to US13/571,843 priority patent/US8761110B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H04L12/1827—Network arrangements for conference optimisation or adaptation
    • 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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems

Definitions

  • the present invention relates to real-time service transmission and resource allocation in a synchronous wireless communication system, and in particular to a resource allocation method for real-time service transmission and an uplink/downlink real-time service transmission method.
  • 3GPP 3rd Generation Partnership Project
  • HSDPA High Speed Downlink Packet Access
  • HSUPA High Speed Uplink Packet Access
  • AMC Adaptive Modulation and Coding
  • Hybrid Automatic Retransmission Request abbreviated as HARQ
  • Node B the scheduling technology controlled by Node B
  • the MAC-hs sublayer and the MAC-e sublayer and corresponding entities are introduced in the Media Access Control (MAC) layer.
  • the MAC-hs sublayer and the MAC-e sublayer and corresponding entities are located in the Node B.
  • the MAC-hs sublayer and the MAC-e sublayer and the entity not only complete the uplink and downlink data processing functions, but also are responsible for the management and scheduling of related radio physical channel resources in the HSDPA and HSUPA technologies.
  • the newly introduced radio physical channel resources include: High-speed physical downlink shared physical channel (High Speed Physical Downlink Shared Channel (referred to as HS-PDSCH for short), Shared Control Channel for HS-DSCH (HS-SCCH for short), and Shared Information Channel for HS-SSCH (HS-SICH for short).
  • the HS-SCHSCH is used to carry the service data of the user, and the HS-SCCH is used to carry the control information related to the UE (User Equipment) receiving the HS-PDSCH channel, and the HS-SICH is used to carry the UE to the Node B.
  • the HS-SICH receives feedback information of the HS-PDSCH channel and user service data. Transmission time interval of HS-SCCH, HS-PDSCH, and HS-SICH in HSDPA technology (Transmit Time Interval, referred to as TTI) is 5ms.
  • TTI Transmit Time Interval
  • Figure 1 is a schematic diagram of the timing relationship between HS-SCCH, HS-PDSCH and HS-SICH channels in HSDPA technology according to the related art TD-SCDMA system.
  • FIG. 2 is a schematic structural diagram of data domain information carried by the HS-SCCH, as shown in FIG. 2, specifically including the following control information: HARD Process ID (HARQ Process ID), occupying 3 bits; Redundancy Version (Redundance Version) RV), occupying 3 bits; new data indicator (New Data Indicator, NDI for short), occupying 1 bit; HS-SCCH cyclic sequence identifier (HCSN), occupying 3 bits; UE ID (CRC cyclic redundancy check), Occupies 16 bits; modulation mode indication (MF), occupies 1 bit; transport block size information (Transprot Block Size, referred to as TBS), occupies 6 bits; channelization code set information, occupies 8 bits; slot position information, occupied 5 Bit.
  • HARD Process ID HARQ Process ID
  • RV Redundancy Version
  • RV Redundancy Version
  • NDI new data indicator
  • HCSN cyclic sequence identifier
  • UE ID CRC cyclic redundancy check
  • MF modul
  • E-DCH Physical Uplink Channel E-PUCH
  • E-DCH Enhanced
  • Dedicated Channel an enhanced dedicated channel.
  • E-PUCH can be divided into scheduled and unscheduled E-PUCH.
  • RNC Radio Network Controller
  • a Radio Network Controller RNC for short
  • the MAC-e sub-layer and entity in the Node B request dynamic allocation according to the UE.
  • E-DCH Absolute Grant Channel E-AGCH
  • E-DCH Hybrid ARQ Indicator Channel E-DCH
  • HICH E-HICH
  • the E-HCH is used to carry the Node B to the UE 4 to schedule the E-PUCH to transmit related control information
  • the E-HICH is used to transmit the receiving confirmation indication information of the user service data on the E-PUCH channel to the UE.
  • 3 is a schematic diagram showing timing relationships between E-AGCH, E-PUCH, and E-HICH channels in HSDPA technology in a TD-SCDMA system according to the related art, as shown in FIG.
  • E-AGCH E-PUCH, and E-HICH.
  • the transmission time interval (TTI) is 5ms.
  • 4 is a schematic diagram of a data domain information structure carried by an E-AGCH. As shown in FIG. 4, the following control information is included: Absolute 4 (power) value (AGV), code resource information (CRRI), and slot resource information. (TRRI), E-AGCH Cyclic Sequence Identifier (ECSN), Resource Continuity Indication (RDI), E-HICH Indication (EI), E-UCCH (Enhanced Uplink Control Channel) indicator number (ENI) and UE ID (CRC Cyclic Redundancy Check).
  • AGV Absolute 4 (power) value
  • CRRI code resource information
  • TRRI E-AGCH Cyclic Sequence Identifier
  • RDI Resource Continuity Indication
  • EI E-HICH Indication
  • E-UCCH Enhanced Uplink Control Channel indicator number
  • ENI Enhanced Uplink Control Channel indicator number
  • UE ID CRC Cyc
  • the transmitted service is a real-time service (such as a VoIP service, that is, an IP phone)
  • the Node B dynamically allocates the HS-PDSCH resource to transmit the service data to the UE through the HS-SCCH for a long time or periodically.
  • the disadvantage of this method is that the overhead of the control channels HS-SCCH and HS-SICH is relatively large, especially for services with relatively small traffic, which is more obvious.
  • Another improved method is to use HS-SCCH-less technology, that is, to simplify the control parameters in the HSDPA transmission process, for example, to fix or pre-configure some parameters, pre-allocate some HS-PDSCH physical channel resources, and combine blind detection technology.
  • the data packet of this type of service does not need to transmit the HS-SCCH in the first HARQ transmission, that is, the HS-SCCH 4 authorized HS-PDSCH channel resource is not transmitted when transmitting the new data packet, but the pre-allocated HS-PDSCH channel is used.
  • Resources and parameters transfer new packets.
  • the HS-PDSCH channel resource is first pre-allocated by the RNC or the Node B, and then transmitted to the UE through high layer signaling.
  • the disadvantage of this method is that the signaling delay is relatively large when reconfiguring the pre-allocated HS-PDSCH channel resources, and dynamic reconfiguration cannot be implemented.
  • the transmitted service is a real-time service (such as a VoIP service)
  • the Node B transmits the service data to the UE by using the E-AGCH for a long time continuous or periodic dynamic allocation of the scheduled E-PUCH resource.
  • the disadvantage is that the overhead of the control channel E-AGCH is relatively large, especially for services with relatively small traffic, and the disadvantage is more obvious.
  • the real-time performance of the service is difficult to guarantee.
  • Another method is to perform the first HARQ transmission of the data packet in a non-scheduled manner, and perform HARQ retransmission of the data packet in a scheduling manner.
  • the prior art allocates non-scheduled E-PUCH resources by the RNC, and then sends them to the Node B and the UE through high layer signaling.
  • the disadvantage of this method is that the signaling delay when reconfiguring non-scheduled E-PUCH resources is relatively large, and dynamic reconfiguration cannot be implemented.
  • the control channel overhead is large and the signaling delay is relatively large when reconfiguring the pre-allocated channel resources, Implement dynamic reconfiguration.
  • the present invention has been made in view of at least one of the problems of the allocation of real-time service transmission resources according to the related art, which has at least one of a large control channel overhead and a relatively large signaling delay when reconfiguring pre-allocated channel resources.
  • the present invention aims to provide a resource allocation method for real-time service transmission and an uplink/downlink real-time service transmission method, which can overcome at least one of the above problems by allocating different traffic channel resources for initial transmission and retransmission of HARQ. .
  • a resource allocation method for real-time service transmission where a base station allocates a service channel resource for real-time service transmission to a terminal, where a resource allocation exists between the terminal and the base station. Control channel.
  • the resource allocation method for real-time service transmission includes the following process: the base station allocates a semi-distributive traffic channel resource to the terminal for initial transmission of the hybrid automatic repeat request of the real-time service data packet through the resource allocation control channel; The terminal can continuously use the semi-static traffic channel resource before the base station reconfigures or releases the semi-static traffic channel resource; the base station allocates the dynamic traffic channel resource to the terminal for the hybrid automatic repeat request of the real-time service data packet through the resource allocation control channel. Retransmission, where the terminal can only use dynamic traffic channel resources within the allocated time period.
  • an uplink real-time service transmission method for performing uplink real-time service transmission between a terminal and a base station, where a resource allocation control channel and information exist between the terminal and the base station. Feedback control channel.
  • the uplink real-time service transmission method according to the present invention includes the following processing: the base station allocates a semi-static traffic channel resource to the terminal; wherein, before the base station reconfigures or releases the semi-static traffic channel resource, the terminal can continuously use the semi-static traffic channel.
  • the terminal uses the semi-static traffic channel resource to perform initial transmission of the hybrid automatic retransmission request of the real-time service data packet; the base station receives the semi-disputed traffic channel resource, determines whether the initial transmitted real-time service data packet is correct, and determines the initial transmission real-time.
  • the terminal allocates a dynamic traffic channel resource; the terminal retransmits the real-time service data packet using the dynamic traffic channel resource; the base station receives the dynamic traffic channel resource, and determines whether the retransmitted real-time service data packet is correct, If the real-time service data packet is transmitted incorrectly, and the number of retransmissions does not reach the predetermined threshold, the dynamic traffic channel resource is re-allocated to the terminal.
  • the base station allocates semi-static traffic channel resources and dynamic traffic channel resources through the resource allocation control channel.
  • the hybrid automatic repeat request is sent by the information feedback control channel to receive the correct indication message to the terminal.
  • the foregoing method further includes: sending a hybrid automatic repeat request receiving error indication message to the terminal through the information feedback control channel, and the base station saves the error in real time. Business data package.
  • the operation of determining whether the retransmitted real-time service data packet is correct is specifically: Whether the received retransmitted real-time service data packet is correct; the base station determines whether the received retransmitted real-time service data packet and the previously saved real-time service data packet with the received error are correct.
  • the information feedback control channel is allocated by: assigning a semi-static information feedback control channel to the terminal by using a resource allocation control channel used when allocating a semi-static traffic channel resource, wherein the semi-static information feedback control channel and the resource allocation control channel are: correspond.
  • the information feedback control channel may also be allocated by the following operations: The semi-static information feedback control channel is allocated to the terminal through high layer signaling.
  • a downlink real-time service transmission method where a downlink real-time service transmission is performed between a terminal and a base station, where a resource allocation control channel and information exist between the terminal and the base station. Feedback control channel.
  • the downlink real-time service transmission method includes the following steps: the base station allocates a semi-static traffic channel resource to the terminal; wherein, before the base station reconfigures or releases the semi-static traffic channel resource, the terminal can continuously use the semi-static traffic channel resource; The base station uses the semi-static traffic channel resource to perform initial transmission of the hybrid automatic repeat request of the real-time service data packet; the terminal receives the semi-distributed traffic channel resource, determines whether the initially transmitted real-time service data packet is correct, and determines the initial transmitted real-time service data.
  • the hybrid automatic repeat request receiving error indication message is fed back to the base station; the base station allocates dynamic traffic channel resources for the terminal; the base station uses the dynamic traffic channel resource to retransmit the real-time service data packet; the terminal receives the dynamic traffic channel resource, and the terminal determines Whether the transmitted real-time service data packet is correct, and in response to the error of the retransmitted real-time service data packet, the hybrid automatic repeat request receiving error indication message is fed back to the base station.
  • the base station allocates semi-static traffic channel resources and dynamic traffic channel resources through a resource allocation control channel.
  • the hybrid automatic repeat request is sent by the information feedback control channel to receive the correct indication message to the base station.
  • the method further includes: transmitting, by the information feedback control channel, a hybrid automatic repeat request receiving error indication message to the base station, where the terminal saves the wrong real-time service data, where the terminal determines that the initial transmission or the retransmission of the real-time service data packet is incorrect. package.
  • the operation of determining whether the retransmitted real-time service data packet is correct is specifically: the terminal determines whether the received real-time service data packet of the retransmission is correct; or the terminal determines the real-time received retransmission.
  • the information feedback control channel is allocated by: assigning a semi-static information feedback control channel to the terminal by using a resource allocation control channel used when allocating a semi-static traffic channel resource, wherein the semi-static information feedback control channel and the resource allocation control channel are: correspond.
  • the information feedback control channel may also be allocated by the following operations:
  • the semi-static information feedback control channel is allocated to the terminal through high layer signaling.
  • the manner of continuous use in each of the above methods includes: continuous use in time, and periodic use.
  • the present invention performs HARQ initial transmission of real-time service data packets by allocating semi-static traffic channel resources for terminals, and allocates dynamic traffic channel resources for terminals to perform HARQ retransmission of real-time service data packets, thereby ensuring service transmission.
  • the real-time nature reduces the control signaling overhead during service transmission, thus ensuring the QoS requirements of the service.
  • FIG. 1 is a schematic diagram showing timing relationships between HS-SCCH, HS-PDSCH, and HS-SICH channels in HSDPA technology according to the related art
  • FIG. 2 is a HS-SCCH according to the related art. Schematic diagram of the data domain information structure of the bearer
  • FIG. 3 is an E-AGCH in the HSDPA technology in the TD-SCDMA system according to the related art, Schematic diagram of timing relationship between E-PUCH and E-HICH channels;
  • FIG. 4 is a schematic diagram of data domain information structure of E-AGCH bearer according to the related art;
  • FIG. 5 is a wireless network system for implementing TD-SCDMA system of the present invention;
  • FIG. 6 is a flowchart of an uplink real-time service transmission method according to Embodiment 2 of the method of the present invention;
  • FIG. 7 is a detailed processing flowchart of an uplink real-time service transmission method according to Embodiment 2 of the method of the present invention.
  • FIG. 9 is a detailed processing diagram of a downlink real-time service transmission method according to Embodiment 3 of the method of the present invention.
  • the embodiments of the present invention provide a resource allocation method for real-time service transmission and an uplink/downlink real-time service transmission method, which allocates different service channel resources for initial transmission and retransmission of HARQ to at least the above problems.
  • the preferred embodiments of the present invention are described in the following with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other if they do not conflict.
  • a resource allocation method for real-time service transmission where a base station allocates a service channel resource for real-time service transmission to a terminal, where a resource allocation control channel exists between the terminal and the base station.
  • the method may include the following processes: (1) The base station allocates a semi-static traffic channel resource to the terminal for initial transmission of the HARQ of the real-time service data packet by using the resource allocation control channel, where the base station pairs the semi-static traffic channel resource The terminal can continue to use semi-static traffic channel resources before reconfiguration or release;
  • the base station allocates dynamic traffic channel resources to the terminal for real-time service data packet HARQ retransmission through the resource allocation control channel, wherein the terminal can only use the dynamic traffic channel resource in the allocated time period, that is, can only use Only one frame or a few frames with a short period can be used at a time.
  • the real-time service transmission method provided by the embodiment of the present invention is further described with reference to the HSUPA technology and the HSDPA technology of the TD-SCDMA system.
  • the typical representative of the real-time service is a VoIP service.
  • Fig. 5 shows a schematic diagram of a radio network system for implementing the TD-SCDMA system of the present invention. As shown in Fig.
  • Method Embodiment 2 provides an uplink real-time service transmission method for performing uplink real-time service transmission between a terminal and a base station according to an embodiment of the present invention, wherein a resource allocation control channel and information exist between the terminal and the base station. Feedback control channel.
  • FIG. 6 is a flowchart of a downlink real-time service transmission method according to an embodiment of the present invention. As shown in FIG.
  • the uplink real-time service transmission method includes the following processing (step S602 - step S610): Step S602, the base station allocates semi-static traffic channel resources for the terminal; wherein, the base station pairs the semi-static traffic channel The terminal can continue to use the semi-static traffic channel resource before the resource is reconfigured or released; Step S604, the terminal uses the semi-contention traffic channel resource to perform the real-time service data packet.
  • Step S606 the base station receives the semi-static traffic channel resource, determines whether the initially transmitted real-time service data packet is correct, and allocates the dynamic traffic channel resource to the terminal when determining the initial transmission of the real-time service data packet error;
  • S608 The terminal retransmits the real-time service data packet by using the dynamic service channel resource.
  • Step S610 The base station receives the dynamic service channel resource, determines whether the retransmitted real-time service data packet is correct, determines that the retransmitted real-time service data packet is incorrect, and retransmits The number of times does not reach the predetermined threshold In the case of the case, the dynamic traffic channel resources are re-allocated to the terminal.
  • step S608 and step S610 when the base station determines that the initially transmitted or retransmitted real-time service data packet is incorrect, the base station sends a hybrid automatic repeat request receiving error indication message to the terminal through the information feedback control channel, and the base station saves Wrong real-time business data package.
  • the E-AGCH and E-HICH physical channels respectively correspond to a base-to-terminal direction resource allocation control channel and a base-to-terminal information feedback control channel related to uplink real-time service transmission, and the E-PUCH corresponds to Traffic channel.
  • the above control channel and traffic channel resources are managed and used by the MAC-e/es sublayer and the entity.
  • the wireless network is composed of two network elements, RNC and Node B, and the RNC and Node B are connected through the lub interface. Connection, first, the E-PUCH, E-AGCH, and E-HICH channel resource pools are configured by the RNC, and then the RNC initiates a Physical Shared Channel Reconfiguration process in the NBAP protocol to the Node B through the lub interface. These resource configuration information is sent to Node B. If the wireless network has only one Node B element, the process can be implemented by interacting with related functional modules inside the Node B. In this process, a MAC-e/es sublayer and an entity are established in the Node B to schedule and manage these channel resource pools.
  • the network side allocates E-AGCH and semi-static E-HICH channel resources to the UE.
  • the network side allocates E-AGCH (Resource Allocation Control Channel) and semi-static E-HICH (Information Feedback Control Channel) channel resources to the UE.
  • E-AGCH Resource Allocation Control Channel
  • E-HICH Information Feedback Control Channel
  • it is usually determined by the RNC to allocate HSUPA resources for one UE for service transmission.
  • the RNC initiates a radio link setup procedure (Radio Link Setup) and a synchronous/asynchronous radio link reconfiguration procedure (Radio Link Reconfiguration) in the NBAP protocol to the Node B through the lub interface to the Node B to request E-AGCH and semi-static for the UE.
  • E-HICH channel resources Node B allocates and saves these resources, and then feeds back to the RNC. If the wireless network on the network side has only one network element of the Node B, the process can be implemented by interacting with related functional modules in the Node B.
  • E-AGCH When the E-AGCH is allocated, one or more E-AGCH channel resources may be allocated to the UE.
  • a semi-contiguous E-HICH channel and one or more signature sequences may be allocated corresponding to each E-AGCH allocated; or a UE may be allocated a
  • the semi-contention E-HICH channel and one or more signature sequences are used as information feedback control channel resources when performing HARQ initial transmission of VoIP service data packets using semi-static E-PUCH channel resources.
  • the network side sends the allocated E-AGCH and semi-static E-HICH channel resources to the UE through high layer signaling.
  • the process is initiated by the RNC through the Uu interface (the interface between the network side and the UE) to the RRC connection establishment process in the RRC ten-party negotiation, and the radio bearer establishment process (Radio Bearer Establishment) Radio Bearer Reconfiguration, Radio Bearer Release, Transport Channel Reconfiguration, Physical Channel Reconfiguration, Cell Update Procedure Cell Update) and other processes to complete.
  • Radio Bearer Establishment Radio Bearer Establishment
  • Radio Bearer Reconfiguration Radio Bearer Release
  • Transport Channel Reconfiguration Radio Bearer Release
  • Physical Channel Reconfiguration Physical Channel Reconfiguration
  • Cell Update Procedure Cell Update Cell Update
  • the Node B allocates the uplink semi-contention E-PUCH channel resource to the UE through the E-AGCH (corresponding to the above step S602)
  • the Node B When the Node B allocates the semi-contention E-PUCH channel resource to the UE through the E-AGCH (ie, the resource allocation control channel), it needs to explicitly indicate and distinguish the Node B dynamically allocates the uplink E through the E-AGCH when scheduling the transmission in the existing HSUPA technology. - PUCH channel resource. Different from the uplink E-PUCH channel resources dynamically allocated by the Node B through the E-AGCH when scheduling transmissions in the existing HSUPA technology, the allocation of the semi-contiguous E-PUCH channel resources by the E-AGCH can continue after receiving the 4 grants. Use until Node B reconfigures semi-static E-PUCH channel resources or releases semi-static E-PUCH channel resources through E-AGCH.
  • the E-AGCH the resource allocation control channel
  • the semi-static E-PUCH channel may be continuous or periodic on a subframe or a frame.
  • RDI Resource Continuity Indication
  • One possible enhancement method is: taking the subframe or frame that sends and receives the E-AGCH as the reference
  • the E-PUCH channel resource is allocated according to a repetition period and a repetition length after a predetermined time, wherein the repetition period and the repetition length are allocated by the Node B and transmitted to the UE through the E-AGCH.
  • the currently defined repetition period has values of 1, 2, 4, 8, 16, 32, 64, and the repeat lengths of each repetition period are 1, 2, 4, 8, and 16 respectively.
  • 32, 64 a total of 127 species. Some or all of these 127 types can be grouped into a table, each of which is assigned an index number. The table is stored as a system parameter in the Node B and the UE.
  • the Node B allocation repetition period and the repetition length are sent to the UE through the E-AGCH and the corresponding index number is obtained.
  • the UE obtains the repetition period and the repetition length of the allocation by using the index number lookup table. .
  • the index number needs to be included in the information structure of the E-AGCH channel.
  • the UE uses the uplink semi-contention E-PUCH channel resource to perform VoIP service data packet
  • the HARQ is initially transmitted to the Node B (corresponding to the above step S604).
  • the data packets of the VoIP service are periodic, every 20 ms - a new data packet. Therefore, the semi-eclectic E-PUCH channel resources of one or more subframes or frames can be allocated to the UE in a period of 20 ms. In this way, the UE can uplink transmit a new data packet generated every 20 ms to the Node B, and all new uplink data packets of the VoIP service are initially transmitted to the Node B through the semi-static E-PUCH channel.
  • the Node B receives the semi-static E-PUCH channel (corresponding to the above step S606)
  • the Node B determines whether the received VoIP service data packet is correctly received. If the reception is correct, the HARQ ACK message is sent to the UE through the semi-static E-HICH channel, and the data packet transmission is completed; if the reception error occurs, the error data packet is saved. And transmitting a HARQ NACK message to the UE through the semi-static E-HICH channel. Specifically, the Node B receives the semi-static E-PUCH channel sent by each UE according to the semi-static E-PUCH channel resource allocated in the foregoing (3), and determines whether the VoIP service data packet is correctly received.
  • the E-HICH channel used may use a semi-static E-HICH channel corresponding to the E-AGCH of the 4 ⁇ semi-static E-PUCH channel resource and one Or multiple signature sequences, or a one-half contention E-HICH channel and one or more signature sequences assigned to the UE.
  • the Node B dynamically allocates the E-PUCH resource to the UE for retransmission of the failed VoIP packet through the E-AGCH (corresponding to the above step S606). For each VoIP packet that receives the error, the Node B will The E-PUCH resource is dynamically allocated by the E-AGCH to the UE for retransmitting the VoIP data packet in the scheduled transmission mode of the existing HSUPA technology.
  • the Node B In the HSUPA technology of the TD-SCDMA system, in order to distinguish between normal scheduled transmission and retransmission, the Node B must explicitly indicate the UE when retransmitting the failed VoIP packet by dynamically allocating the E-PUCH resource through the E-AGCH.
  • the UE retransmits the failed VoIP packet to the Node B by using the dynamically allocated scheduling E-PUCH resource (corresponding to step S608 described above).
  • each TTI can only transmit one data. package. Therefore, on the UE side, if a certain TTI is explicitly indicated by the E-PUCH resource dynamically allocated by the E-AGCH for retransmission of the VoIP service, the UE retransmits the UE using the dynamically allocated scheduling E-PUCH resource.
  • the VoIP service packet that failed to be transmitted previously is sent to Node B.
  • Node B receives the dynamically allocated scheduling E-PUCH channel (corresponding to the above steps)
  • Node B determines the received retransmission VoIP packet or the packet is received incorrectly
  • the HARQ ACK message is sent to the UE by scheduling the E-HICH channel, and the data packet transmission is completed. If the error is received, the received error packet is saved and passed.
  • the scheduling E-HICH channel transmits a HARQ NACK message to the UE, and then proceeds to the subsequent processing (9). Specifically, in the Node B, if the scheduled E-PUCH previously allocated to the UE is explicitly indicated to be used for retransmission of the VoIP data packet, after receiving the scheduled E-PUCH channel, determining whether the VoIP service data packet is received Correctly, or after combining the received retransmission data with the previously received error data, it is determined whether the combined VoIP service data packet is received correctly.
  • the HARQ ACK message is sent by scheduling the E-HICH channel and the signature sequence corresponding to the E-PUCH channel.
  • the data transmission is completed.
  • the erroneous data is saved, and the HARQ NACK message is sent to the UE by scheduling the E-HICH channel corresponding to the E-PUCH channel, and proceeds to the subsequent processing (9).
  • the saved error data may be the data after the merge processing, or may be the previously received error data and the newly received error data.
  • the base station determines whether the number of retransmissions of the VoIP service data packet reaches a certain predetermined threshold value, and if the determination result is no, returns to the above processing (6) (corresponding to step S610 described above), specifically, if If the transmission fails, the Node B determines whether the VoIP service data packet is retransmitted over a certain predetermined threshold.
  • the predetermined threshold is usually configured by the RNC or the Node B to the Node B and the UE when the service is initially established, that is, in the process (2).
  • the third embodiment of the present invention provides a downlink real-time service transmission method for downlink real-time service transmission between a terminal and a base station, where a resource allocation control channel and information feedback control exist between the terminal and the base station. channel.
  • FIG. 8 is a flowchart of a downlink real-time service transmission method according to an embodiment of the present invention. As shown in FIG.
  • the downlink real-time service transmission method includes the following processing (step S802-step S810): Step S802, the base station allocates semi-static traffic channel resources for the terminal; wherein, the base station pairs the semi-static traffic channel The terminal can continue to use the semi-static traffic channel resource before the resource is reconfigured or released.
  • Step S804 The base station uses the semi-distributive traffic channel resource to perform initial transmission of the HARQ of the real-time service data packet.
  • Step S806 The terminal receives the semi-static traffic channel resource.
  • Step S808 the base station allocates a dynamic service channel resource to the terminal;
  • Step S810 The base station retransmits the real-time service data packet by using the dynamic service channel resource.
  • Step S812 The terminal receives the dynamic service channel resource, determines whether the retransmitted real-time service data packet is correct, and determines that the retransmitted real-time service data packet is incorrect. And feeding back a HARQ reception error indication message to the base station.
  • step S806 and step S812 when the terminal determines that the real-time service data packet of the initial transmission or the retransmission is incorrect, the terminal sends a hybrid automatic repeat request receiving error indication message to the base station through the information feedback control channel, and the terminal saves the error.
  • Real-time business data package In the HSDPA technology of the TD-SCDMA system, the HS-SCCH and the HS-SICH physical channel respectively correspond to a resource allocation control channel from a base station to a terminal direction and an information feedback control channel of a terminal to a base station related to downlink real-time service transmission, The HS-PDSCH corresponds to the traffic channel.
  • the above control channel and traffic channel resources are managed and used by the MAC-hs sublayer and the entity.
  • the HS-SICH channel resource pool is composed of two network elements: RNC and Node B.
  • the RNC and Node B are connected through the lub interface. Connection, first, the HS-PDSCH, HS-SCCH, and HS-SICH channel resource pools are configured by the RNC, and then the RNC initiates a NBAP ten-material physical shared channel reconfiguration process to the Node B through the lub interface. Send these resource configuration information to Node B.
  • the wireless network has only Node B-network elements, the process can be implemented by interacting with related functional modules inside the Node B. In this process, a MAC-hs sublayer and an entity are established in the Node B to schedule and manage these channel resource pools.
  • the network side allocates HS-SCCH and semi-static HS-SICH channel resources to the UE.
  • the network side allocates HS-SCCH and semi-static HS-SICH channel resources for the UE.
  • it is generally determined by the RNC to allocate HSDPA resources for one UE for service transmission.
  • the RNC initiates a radio link setup procedure (Radio Link Setup) and a synchronous/asynchronous radio link reconfiguration procedure (Radio Link Reconfiguration) in the NBAP protocol to the Node B through the lub interface, and requests the Node B to allocate the HS-SCCH and the semi-static to the UE.
  • HS-SICH channel resources, Node B allocation and protection Save these resources and then feed back to the RNC.
  • the process can be implemented by interacting with related functional modules in the Node B.
  • the HS-SCCH When the HS-SCCH is allocated, one or more HS-SCCH channel resources may be allocated to the UE.
  • one semi-contiguous HS-SICH channel When allocating semi-static HS-SICH channel resources, one semi-contiguous HS-SICH channel may be allocated corresponding to each HS-SCCH allocated; or a semi-contiguous HS-SICH channel may be allocated to the UE for use as a half.
  • the contention feedback control channel resource when the HS-PDSCH channel resource performs the HARQ initial transmission of the VoIP service data packet.
  • the network side sends the allocated HS-SCCH and semi-static HS-SICH channel resources to the UE through high layer signaling.
  • the process is initiated by the RNC through the Uu interface (the interface between the network side and the UE) to the RRC connection establishment process (RRC connection establishment) and the radio bearer establishment process (Radio Bearer Establishment) in the RRC ten-party negotiation. Radio Bearer Reconfiguration, Radio Bearer Release, Transport Channel Reconfiguration, Physical Channel Reconfiguration, Cell Update Procedure Cell Update) and other processes to complete.
  • the wireless network on the network side has only Node B-network elements, the Node B sends the foregoing resources to the UE through a process similar to the foregoing process.
  • the Node B allocates the downlink half-contention HS-PDSCH channel resource to the UE through the HS-SCCH (corresponding to the above step S802)
  • the Node B When the Node B allocates a semi-static HS-PDSCH channel resource to the UE through the HS-SCCH (ie, the resource allocation control channel), it needs to explicitly indicate and distinguish the existing HSDPA technology.
  • the Node B dynamically allocates the downlink HS-PDSCH channel resource through the HS-SCCH. .
  • the semi-static HS-PDSCH channel resources are allocated through the HS-SCCH, and the UE can continue to use after receiving the allocation information until The Node B reconfigures the semi-contention HS-PDSCH channel resource or releases the semi-contiguous HS-PDSCH channel resource through the HS-SCCH.
  • the half-contiguous HS-PDSCH channel may be continuous or periodic on a subframe or frame.
  • the information in the existing HS-SCCH information structure shown in Figure 2 cannot be continuously authorized. Therefore, it is necessary to enhance or modify the information structure of the HS-SCCH channel.
  • a possible enhancement method is: allocating HS-PDSCH channel resources according to a repetition period and a repetition length after a predetermined time, with reference to a subframe or a frame that transmits and receives the HS-SCCH, where , repetition period and repetition length are assigned and communicated by Node B
  • the HS-SCCH is sent to the UE.
  • the currently defined repetition period has values of 1, 2, 4, 8, 16, 32, 64, and the repeat lengths of each repetition period are 1, 2, 4, 8, and 16 respectively.
  • 32, 64 a total of 127 species. Some or all of these 127 types can be grouped into a table, each of which is assigned an index number. The table is stored as a system parameter in the Node B and the UE.
  • the Node B allocation repetition period and the repetition length are sent to the UE through the HS-SCCH and the corresponding index number is obtained.
  • the UE obtains the repetition period and the repetition length of the allocation by using the index number lookup table. .
  • the index number needs to be included in the information structure of the HS-SCCH channel.
  • the Node B uses the downlink semi-contention HS-PDSCH channel resource to perform the HARQ initial transmission of the VoIP service data packet to the UE (corresponding to step S804).
  • the data packet of the VoIP service is periodic, every 20 ms - a new one data pack. Therefore, one or more subframes or frames of the semi-contiguous HS-PDSCH channel resources can be allocated to the UE in a period of 20 ms. In this way, the Node B can downlink transmit a new data packet generated every 20 ms to the UE, and all new downlink data packets of all VoIP services are initially transmitted to the UE through the semi-static HS-PDSCH channel.
  • the UE receives the semi-static HS-PDSCH channel (corresponding to step S806)
  • the UE determines whether the received VoIP service data packet is correctly received. If the reception is correct, the HARQ ACK message is sent to the Node B through the semi-static HS-SICH channel, and the data packet transmission is completed; if the error is received, the error data packet is saved. Sending a HARQ NACK message to the Node B through the semi-static HS-SICH channel and processing it (6).
  • the UE receives the semi-static HS-PDSCH channel transmitted by the Node B according to the semi-static HS-PDSCH channel resource allocated in the process (3) of the embodiment, and determines whether the VoIP service data packet is correctly received.
  • a HARQ ACK Receiveive Correct
  • a HARQ NACK reception error
  • the used HS-SICH channel may use a semi-static HS corresponding to the HS-SCCH of the 4-weighted semi-contiguous HS-PDSCH channel resource.
  • - SICH channel or use a semi-static HS-SICH channel assigned to the UE.
  • the Node B dynamically allocates the HS-PDSCH resource to the UE through the HS-SCCH for retransmitting the failed VoIP packet (corresponding to step S808). For each VoIP packet that receives the error, the Node B will be the existing one.
  • the scheduling transmission mode in the HSDPA technology dynamically allocates HS-PDSCH resources to the UE for retransmission of the VoIP data packet through the HS-SCCH.
  • the Node B retransmits the failed VoIP packet to the UE by using the dynamically allocated HS-PDSCH resource (corresponding to step S810)
  • the UE receives the dynamically allocated HS-PDSCH channel (corresponding to step S812)
  • the UE determines whether the received retransmission VoIP data packet or the data packet combined with the previously received incorrect VoIP data packet is correct, and if the reception is correct, sends a HARQ ACK message to the Node B through the HS-SICH channel, the data.
  • the packet transmission is completed; if the error is received, the received error packet is saved, the HARQ NACK message is sent to the Node B through the HS-SICH channel, and the processing in the following embodiment is performed (9).
  • the UE determines whether the VoIP service data packet is received correctly, or combines the received retransmission data with the previously received error data, and then determines the merged Whether the VoIP service data packet is received correctly.
  • the HARQ ACK message is sent to the Node B through the HS-SICH channel corresponding to the HS-SCCH channel that dynamically allocates the HS-PDSCH channel resource, and the data transmission is completed. If the error is still received, the erroneous data is saved, and the HARQ NACK message is sent to the Node B through the HS-SICH channel corresponding to the HS-SCCH channel that dynamically allocates the HS-PDSCH channel resource, and the following processing is performed (9) .
  • the saved error data may be the data after the merge processing, or may be the previously received error data and the newly received error data.
  • Node B determines whether the VoIP service data packet is retransmitted over a certain predetermined threshold.
  • the predetermined threshold is usually configured by the RNC or the Node B to the Node B and the UE when the service is initially established, that is, in the foregoing process (2) of this embodiment.
  • the VoIP packet is retransmitted to the predetermined number of retransmissions, but the VoIP packet is still not correctly received by the UE. The transmission process ends.
  • the VoIP packet is discarded; otherwise, the process (6) of the present embodiment is returned.
  • the HARQ initial transmission of the real-time service data packet is performed by allocating the semi-static traffic channel resource to the terminal, and the dynamic traffic channel resource is allocated to the terminal to perform the HARQ weight of the real-time service data packet.
  • the transmission can ensure the real-time performance of the service transmission, reduce the control signaling overhead during the service transmission, thereby ensuring the QoS requirements of the service, and reconfiguring the semi-distributed traffic channel resources in time through the resource allocation control channel.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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Description

实时业务传输方法及资源分配方法 技术领域 本发明涉及同步无线通信系统中的实时业务传输及其资源分配， 具体 地， 涉及一种实时业务传输的资源分配方法及上行 /下行实时业务传输方法。 背景技术 为了提供更高速率的上下行分组业务， 提高频谱利用效率， 3GPP ( 3rd Generation Partnership Project, 第三 移动通信伙伴计划）在 TD-SCDMA系 统的规范中引入了高速下行分组接入 ( High Speed Downlink Packet Access, 简称为 HSDPA )和高速上行分组接入 ( High Speed Uplink Packet Access , 简 称为 HSUPA ) 特性， 并通过引入自适应编码调制 （Adaptive Modulation and Coding , 简称为 AMC )、 混合自动重传请求 ( Hybrid Automatic Retransmission Request, 简称为 HARQ ) 以及 Node B (节点 B ) 控制的调度技术， 减小了 网络处理时延， 从而提高了上 /下行分组业务速率和频谱利用效率。 在 HSDPA 和 HSUPA 技术中， 分别在媒体接入控制 （Media Access Control,简称为 MAC )层引入了 MAC-hs子层和 MAC-e子层及相应的实体。 在网络侧， MAC-hs子层和 MAC-e子层及相应的实体都位于 Node B 中。 MAC-hs子层和 MAC-e子层及实体不仅完成上下行数据处理功能， 同时还负 责 HSDPA和 HSUPA技术中的相关无线物理信道资源的管理和调度。 在 TD-SCDMA ( Time Division-Synchronous Code Division Multiple Access, 时分同步码分多址接入） 系统的 HSDPA技术中， 新引入的无线物 理信道资源包括： 高速物理下行共享物理信道（ High Speed Physical Downlink Shared Channel, 简称为 HS-PDSCH )、 高速共享控制信道（Shared Control Channel for HS-DSCH , 简称为 HS-SCCH ) 和高速共享控制信道 （Shared Information Channel for HS-DSCH, 简称为 HS-SICH )。 其中， HS-PDSCH用 来承载用户的业务数据， HS-SCCH用来承载控制 UE ( User Equipment, 用 户设备）接收 HS-PDSCH信道的相关控制信息， HS-SICH用来承载 UE向 Node B发送的 HS-SICH接收 HS-PDSCH信道及用户业务数据的反馈信息。 在 HSDPA技术中， HS-SCCH、 HS-PDSCH, 和 HS-SICH 的传输时间间隔 ( Transmit Time Interval, 简称为 TTI ) 都是 5ms , 图 1是才艮据相关技术的 TD-SCDMA系统中 HSDPA技术中 HS-SCCH、 HS-PDSCH和 HS-SICH信道 间的定时关系示意图， 如图 1所示， 其中用于调度控制的信令信道 HS-SCCH 和 HS-SICH配置是——对应， 成对使用。 图 2为 HS-SCCH承载的数据域信息的结构示意图， 如图 2所示， 具体 包含有以下控制信息： HARD进程标识 （ HARQ Process ID ), 占用 3比特； 冗余版本信息（Redundance Version, 简称为 RV ), 占用 3比特； 新数据指示 ( New Data Indicator , 简称为 NDI ) , 占用 1比特； HS-SCCH循环序列标识 ( HCSN ), 占用 3比特； UE ID ( CRC循环冗余校验）， 占用 16比特； 调制 方式指示（MF ), 占用 1比特； 传输块大小信息（Transprot Block Size, 简称 为 TBS ), 占用 6比特； 信道化码集信息， 占用 8比特； 时隙位置信息， 占 用 5比特。 在 TD-SCDMA系统的 HSUPA技术中， 在物理层方面 HSUPA技术新 引入了上行增强物理信道（ E-DCH Physical Uplink Channel,简称为 E-PUCH ) 来 载用户业务数据， 其中， E-DCH ( Enhanced Dedicated Channel ) 是增强 专用信道。 在 HSUPA技术中， E-PUCH可以区分为调度和非调度 E-PUCH。 无线网络控制器 （Radio Network Controller , 简称为 RNC ) 分配非调度 E-PUCH信道资源， 只要该资源可用， UE可以在任何时间发射该信道。 对于 调度 E-PUCH信道资源， 由 Node B中的 MAC-e子层及实体才艮据 UE请求动 态分配。 同时， 还新引入了下行的增强绝对 4受权信道 ( E-DCH Absolute Grant Channel , 简称为 E-AGCH ) 和上行的增强混合自动重传指示信道 ( E-DCH Hybrid ARQ Indicator Channel, 简称为 E-HICH )。 E-AGCH用于 载 Node B 给 UE 4受权调度 E-PUCH发送相关的控制信息， 而 E-HICH用于承载 Node B 向 UE发送 E-PUCH信道上的用户业务数据的接收确认指示信息。 图 3是根 据相关技术的 TD-SCDMA 系统中 HSDPA 技术中 E-AGCH、 E-PUCH 和 E-HICH信道间的定时关系示意图，如图 3所示，E-AGCH、E-PUCH和 E-HICH 的传输时间间隔 （TTI ) 都是 5ms。 图 4为 E-AGCH承载的数据域信息结构的示意图， 如图 4所示， 包含 有以下控制信息： 绝对 4吏权（功率） 值 （AGV )、 码资源信息 （CRRI )、 时 隙资源信息（TRRI )、 E-AGCH循环序列标识（ECSN )、资源持续指示（RDI )、 E-HICH指示 （EI )、 E-UCCH ( Enhanced Uplink Control Channel , 上行增强 控制信道） 个数指示 （ENI ) 和 UE ID ( CRC循环冗余校验）。 在 HSDPA技术中， 如果传输的业务是实时业务（如 VoIP业务， 即 IP 电话）， 一种方法是 Node B通过 HS-SCCH长时间连续或者周期性动态分配 HS-PDSCH资源传输业务数据给 UE, 这种方法的缺点是控制信道 HS-SCCH 和 HS-SICH的开销比较大， 特别是对于业务量比较小的业务， 该缺点更为明 显。 另一种改进的方法是采用 HS-SCCH-less技术， 即， 简化 HSDPA传输过 程中的控制参数， 例如， 固定或者预配置一些参数， 预分配一些 HS-PDSCH 物理信道资源， 并结合盲检测技术， 使得这类业务的数据包在首次 HARQ传 输时， 不用发送 HS-SCCH , 即， 传输新数据包时不发送 HS-SCCH 4受权 HS-PDSCH信道资源，而是使用预分配的 HS-PDSCH信道资源和参数传输新 的数据包。 在这种方法中， 首先由 RNC或者 Node B预分配 HS-PDSCH信 道资源， 然后通过高层信令发送给 UE。 该方法的缺点是重配置预分配 HS-PDSCH信道资源时信令时延比较大， 不能实现动态重配置。 在 HSUPA技术中， 如果传输的业务是实时业务（如 VoIP业务）， 一种 方法是 Node B通过 E-AGCH长时间连续或者周期性动态分配调度 E-PUCH 资源传输业务数据给 UE, 这种方法的缺点是控制信道 E-AGCH的开销比较 大， 尤其是对于业务量比较小的业务， 该缺点更为明显， 另夕卜， 业务的实时 性也难以保证。 另一种方法是以非调度方式进行数据包的首次 HARQ传输， 以调度的方式进行数据包的 HARQ重传。在这种方法中，现有技术是由 RNC 分配非调度 E-PUCH资源的， 然后通过高层信令分别发送给 Node B和 UE。 该方法的缺点也是重配置非调度 E-PUCH资源时的信令延迟比较大， 不能实 现动态重配置。 通过以上描述可以看出， 无论是对于 HSDPA技术还是 HSUPA技术， 在进行实时业务传输的资源分配时， 存在控制信道开销较大以及重配置预分 配信道资源时信令时延比较大的问题， 不能实现动态重配置。 发明内容 鉴于根据相关技术的实时业务传输资源的分配存在控制信道开销较大、 重配置预分配信道资源时信令时延比较大的问题中的至少之一而提出本发 明。 为此， 本发明旨在提供一种实时业务传输的资源分配方法及上行 /下行实 时业务传输方法，通过分配不同的业务信道资源用于 HARQ的初始传输和重 传， 能够克服上述问题至少之一。 为了实现上述目的， 才艮据本发明的一个方面， 提供了一种实时业务传输 的资源分配方法， 用于基站为终端分配实时业务传输的业务信道资源， 其中， 终端与基站之间存在资源分配控制信道。 才艮据本发明的实时业务传输的资源分配方法包括以下处理：基站通过资 源分配控制信道为终端分配半 争态业务信道资源用于实时业务数据包的混合 自动重传请求的初始传输； 其中， 在基站对半静态业务信道资源进行重配置 或释放之前， 终端能够持续使用半静态业务信道资源； 基站通过资源分配控 制信道为终端分配动态业务信道资源用于实时业务数据包的混合自动重传请 求的重传， 其中， 终端只能在分配的时间段内使用动态业务信道资源。 为了实现上述目的， 根据本发明的另一方面， 提供了一种上行实时业务 传输方法， 用于终端与基站之间进行上行实时业务传输， 其中， 终端与基站 之间存在资源分配控制信道和信息反馈控制信道。 才艮据本发明的上行实时业务传输方法包括以下处理：基站为终端分配半 静态业务信道资源； 其中， 在基站对半静态业务信道资源进行重配置或释放 之前， 终端能够持续使用半静态业务信道资源； 终端使用半静态业务信道资 源进行实时业务数据包的混合自动重传请求的初始传输； 基站接收半 争态业 务信道资源， 判断初始传输的实时业务数据包是否正确， 在判断初始传输的 实时业务数据包错误的情况下， 为终端分配动态业务信道资源； 终端使用动 态业务信道资源重传实时业务数据包； 基站接收动态业务信道资源， 判断重 传的实时业务数据包是否正确， 在判断重传的实时业务数据包错误， 且重传 次数未达到预定阈值的情况下， 重新为终端分配动态业务信道资源。 其中， 在上述处理中， 基站通过资源分配控制信道分配半静态业务信道 资源和动态业务信道资源。 其中， 在上述处理中， 在基站判断初始传输或重传的实时业务数据包正 确的情况下， 通过信息反馈控制信道发送混合自动重传请求接收正确指示消 息给终端。 其中， 在基站判断初始传输的或重传的实时业务数据包错误的情况下， 上述方法进一步包括： 通过信息反馈控制信道发送混合自动重传请求接收错 误指示消息给终端， 并且基站保存错误的实时业务数据包。 其中， 判断重传的实时业务数据包是否正确的操作具体为： 基站判断接 收到的重传的实时业务数据包是否正确； 基站判断接收到的重传的实时业务 数据包与先前保存的接收错误的实时业务数据包合并后的数据包是否正确。 其中， 通过如下操作分配信息反馈控制信道： 通过分配半静态业务信道 资源时使用的资源分配控制信道给终端分配半静态信息反馈控制信道，其中， 半静态信息反馈控制信道与资源分配控制信道——对应。 另夕卜， 也可以通过如下操作分配信息反馈控制信道： 通过高层信令， 为 终端分配半静态信息反馈控制信道。 为了实现上述目的， 根据本发明的再一方面， 提供了一种下行实时业务 传输方法， 用于终端与基站之间进行下行实时业务传输， 其中， 终端与基站 之间存在资源分配控制信道和信息反馈控制信道。 根据本发明的下行实时业务传输方法包括以下处理：基站为终端分配半 静态业务信道资源； 其中， 在基站对半静态业务信道资源进行重配置或释放 之前， 终端能够持续使用半静态业务信道资源； 基站使用半静态业务信道资 源进行实时业务数据包的混合自动重传请求的初始传输； 终端接收半 争态业 务信道资源， 判断初始传输的实时业务数据包是否正确， 在判断初始传输的 实时业务数据包错误的情况下， 向基站反馈混合自动重传请求接收错误指示 消息； 基站为终端分配动态业务信道资源； 基站使用动态业务信道资源重传 实时业务数据包； 终端接收动态业务信道资源， 判断重传的实时业务数据包 是否正确， 在判断重传的实时业务数据包错误的情况下， 向基站反馈混合自 动重传请求接收错误指示消息。 其中，基站通过资源分配控制信道分配半静态业务信道资源和动态业务 信道资源。 其中， 在终端判断初始传输或重传的实时业务数据包正确的情况下， 通 过信息反馈控制信道发送混合自动重传请求接收正确指示消息给基站。 其中， 在终端判断初始传输或重传的实时业务数据包错误的情况下， 上 述方法进一步包括： 通过信息反馈控制信道发送混合自动重传请求接收错误 指示消息给基站， 终端保存错误的实时业务数据包。 其中， 判断重传的实时业务数据包是否正确的操作具体为： 终端判断接 收到的重传的实时业务数据包是否正确； 或者终端判断接收到的重传的实时 业务数据包与先前保存的接收错误的实时业务数据包合并后的数据包是否正 确。 其中， 在上述方法中， 在终端判断重传的实时业务数据包错误， 向基站 反馈混合自动重传请求接收错误指示消息的情况下， 如果基站判断重传次数 未达到预定阈值， 则重新为终端分配动态业务信道资源。 其中， 通过如下操作分配信息反馈控制信道： 通过分配半静态业务信道 资源时使用的资源分配控制信道给终端分配半静态信息反馈控制信道，其中， 半静态信息反馈控制信道与资源分配控制信道——对应。 另夕卜， 也可以通过如下操作分配信息反馈控制信道： 通过高层信令， 为 终端分配半静态信息反馈控制信道。 以及， 上述各方法中的持续使用的方式包括： 时间上连续使用、 周期性 使用。 借助于上述至少一个技术方案，本发明通过为终端分配半静态业务信道 资源进行实时业务数据包的 HARQ初始传输，为终端分配动态业务信道资源 进行实时业务数据包的 HARQ重传， 可以保证业务传输的实时性， 减小业务 传输时的控制信令开销， 从而可以保证业务的 QoS要求。 本发明的其它特征和优点将在随后的说明书中阐述， 并且， 部分地从说 明书中变得显而易见， 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结构来实 现和获得。 附图说明 附图用来提供对本发明的进一步理解， 并且构成说明书的一部分， 与本 发明的实施例一起用于解释本发明， 并不构成对本发明的限制。 在附图中： 图 1是才艮据相关技术的 TD-SCDMA系统中 HSDPA技术中 HS-SCCH、 HS-PDSCH和 HS-SICH信道间的定时关系示意图； 图 2是根据相关技术的 HS-SCCH承载的数据域信息结构示意图； 图 3是才艮据相关技术的 TD-SCDMA系统中 HSDPA技术中 E-AGCH、 E-PUCH和 E-HICH信道间的定时关系示意图； 图 4是根据相关技术的 E-AGCH承载的数据域信息结构的示意图； 图 5是用于实施本发明的 TD-SCDMA系统的无线网络系统结构的示意 图； 图 6是根据本发明方法实施例二的上行实时业务传输方法的流程图； 图 7 是才艮据本发明方法实施例二的上行实时业务传输方法的详细处理 流程图； 图 8是才艮据本发明方法实施例三的下行实时业务传输方法的流程图； 图 9 是才艮据本发明方法实施例三的下行实时业务传输方法的详细处理 ¾ϊ程图。 具体实施方式 如上所述， 在才艮据相关技术的实时业务传输资源的分配中， 存在控制信 道开销较大、 重配置预分配信道资源时信令时延比较大的问题。 为此， 本发 明实施例提供了一种实时业务传输的资源分配方法及上行 /下行实时业务传 输方法，其通过分配不同的业务信道资源用于 HARQ的初始传输和重传来克 月 上述问题至少之一。 以下结合附图对本发明的优选实施例进行说明， 应当理解， 此处所描述 的优选实施例仅用于说明和解释本发明， 并不用于限定本发明。 需要说明的 是， 如果不沖突， 本申请中的实施例以及实施例中的特征可以相互组合。 方法实施例一 根据本发明实施例， 提供了一种实时业务传输的资源分配方法， 用于基 站为终端分配实时业务传输的业务信道资源， 其中， 终端与基站之间存在资 源分配控制信道。 具体地， 该方法可以包括以下处理： (一）基站通过资源分配控制信道为终端分配半静态业务信道资源用于 实时业务数据包的 HARQ的初始传输， 其中， 在基站对半静态业务信道资源 进行重配置或释放之前， 终端能够持续使用半静态业务信道资源；
(二）基站通过资源分配控制信道为终端分配动态业务信道资源用于实 时业务数据包的 HARQ的重传， 其中， 终端只能在分配的时间段内使用动态 业务信道资源， 即， 只能使用一次或只能使用 1个帧或周期较短的几个帧。 基于上述内容， 以下将参照 TD-SCDMA系统的 HSUPA技术和 HSDPA 技术来进一步描述本发明实施例提供的实时业务传输方法， 其中， 实时业务 的典型代表为 VoIP业务。 图 5示出了用于实施本发明的 TD-SCDMA系统的无线网络系统的示意 图， 如图 5所示， 包括网络侧的 RNC和 Node B以及 UE。 方法实施例二 才艮据本发明的实施例， 提供了一种上行实时业务传输方法， 用于终端与 基站之间进行上行实时业务传输， 其中， 终端与基站之间存在资源分配控制 信道和信息反馈控制信道。 图 6 是根据本发明实施例的下行实时业务传输方法的流程图。 如图 6 所示，根据本发明实施例的上行实时业务传输方法包括以下处理 (步骤 S602- 步骤 S610 ): 步骤 S602, 基站为终端分配半静态业务信道资源； 其中， 在基站对半 静态业务信道资源进行重配置或释放之前， 终端能够持续使用半静态业务信 道资源； 步骤 S604 , 终端使用半 争态业务信道资源进行实时业务数据包的
HARQ的初始传输； 步骤 S606, 基站接收半静态业务信道资源， 判断初始传输的实时业务 数据包是否正确， 在判断初始传输的实时业务数据包错误的情况下， 为终端 分配动态业务信道资源； 步骤 S608 , 终端使用动态业务信道资源重传实时业务数据包； 步骤 S610, 基站接收动态业务信道资源， 判断重传的实时业务数据包 是否正确， 在判断重传的实时业务数据包错误， 且重传次数未达到预定阈值 的情况下， 重新为终端分配动态业务信道资源。 其中， 在步骤 S608和步骤 S610 中， 基站判断初始传输的或重传的实 时业务数据包错误的情况下， 基站通过信息反馈控制信道发送混合自动重传 请求接收错误指示消息给终端， 且基站保存错误的实时业务数据包。 以下将以 VoIP业务为例来进一步描述上述的各个处理步骤。在 HSUPA 技术中， E-AGCH和 E-HICH物理信道分别对应于上行实时业务传输相关的 从基站到终端方向的资源分配控制信道和基站到终端的信息反馈控制信道， 而 E-PUCH则对应于业务信道。 在 MAC层中， 由 MAC-e/es子层及实体来 管理和使用上述控制信道和业务信道资源。 可以参照图 7对本发明实施例进 行如下描述：
(一） 在网络侧配置 E-PUCH、 E-AGCH、 E-HICH信道资源池 按现有网络结构， 即， 无线网络由 RNC和 Node B两个网元组成， RNC 与 Node B通过 lub接口相连接， 首先， 由 RNC配置 E-PUCH、 E-AGCH和 E-HICH信道资源池， 然后， 由 RNC通过 lub接口向 Node B发起 NBAP协 议中物理共享信道重配置 （ Physical Shared Channel Reconfiguration ) 过程来 将这些资源配置信息发送给 Node B。 如果无线网络只有 Node B一个网元， 则该过程可以由 Node B内部的 相关功能模块之间相互配合来实现。 在此过程中， 在 Node B中建立一个 MAC-e/es子层及实体来调度管理 这些信道资源池。
(二） 网络侧为 UE分配 E-AGCH和半静态 E-HICH信道资源 网络侧为 UE分配 E-AGCH (资源分配控制信道 )和半静态 E-HICH (信 息反馈控制信道） 信道资源。 按现有网络结构， 通常由 RNC 来确定为一个 UE分配 HSUPA资源进行业务传输。 RNC通过 lub接口向 Node B发起 NBAP 协议中的无线链路建立过程（ Radio Link Setup )和同步 /异步无线链路重配置 过程 ( Radio Link Reconfiguration ) 向 Node B请求为 UE分配 E-AGCH和半 静态 E-HICH信道资源， Node B分配并保存这些资源， 然后反馈给 RNC。 如果网络侧的无线网络只有 Node B一个网元， 则该过程可以由 Node B内部 的相关功能模块之间相互配合来实现。 在分配 E-AGCH时，可以为 UE分配 1条或者多条 E-AGCH信道资源。 在分配半 争态 E-HICH信道资源时， 可以与分配的每一条 E-AGCH——对应 分配一条半争态 E-HICH信道及一个或者多个签名序列（ signature sequence )； 或者为 UE分配一条半争态 E-HICH信道及一个或者多个签名序列用来作为 使用半静态 E-PUCH信道资源进行 VoIP业务数据包的 HARQ初始传输时的 信息反馈控制信道资源。 网络侧将上述分配的 E-AGCH和半静态 E-HICH信道资源通过高层信 令发送给 UE。 按现有网络结构， 该过程由 RNC通过 Uu接口 （网络侧与 UE 间的接口） 向 UE发起 RRC十办议中的 RRC连接建立过程 ( RRC connection establishment ), 无线 载建立过程 （ Radio Bearer Establishment )、 无线 载 重西己置过程 ( Radio Bearer Reconfiguration )、无线 Ϊ载释放过程 ( 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 ) 等过程来完成。 如果网络侧的无线网络只有 Node B—个网元， 则 由 Node B通过与上述过程类似的过程来完成将上述资源发送给 UE。
(三） Node B通过 E-AGCH分配上行半争态 E-PUCH信道资源给 UE (对应于上述的步骤 S602 )
Node B通过 E-AGCH (即， 资源分配控制信道 ) 分配半争态 E-PUCH 信道资源给 UE时，需要明确指示并区分现有 HSUPA技术中调度传输时 Node B通过 E-AGCH动态分配上行 E-PUCH信道资源。 与现有 HSUPA技术中调度传输时 Node B通过 E-AGCH动态分配的上 行 E-PUCH信道资源不同的是， 通过 E-AGCH分配半争态 E-PUCH信道资 源 UE在收到 4受权后可以持续使用， 直到 Node B通过 E-AGCH重新配置半 静态 E-PUCH信道资源或者释放半静态 E-PUCH信道资源。 其中， 半静态 E-PUCH信道在子帧或者帧上可以是连续的或者周期性的。 在图 4所示的现有 E-AGCH信息结构中资源持续指示（ RDI )信息具有 授权多个 TTI的能力，但目前定义的能力还不能支持比较长时间的持续授权。 因此， 需要增强或者爹改 RDI的定义， 或者增强或者爹改 E-AGCH信道的 信息结构。 一种可能的增强方法是： 以发送和接收到 E-AGCH 的子帧或者帧为参 考， 在预定时间后按重复周期 （ Repeat Period ) 和重复长度 ( Repeat Length ) 分配 E-PUCH信道资源， 其中， 重复周期和重复长度由 Node B分配并通过 E-AGCH发送给 UE。在 TD-SCDMA系统中， 目前定义的重复周期取值有 1 , 2 , 4 , 8 , 16, 32 , 64 , 每一种重复周期下可取的重复长度分别为 1 , 2, 4, 8 , 16, 32, 64, 共计 127种。 可以将这 127种中的部分或者全部编成一个 表， 每一个分配一个索引号。 该表作为系统参数在 Node B和 UE中保存， Node B分配重复周期和重复长度通过 E-AGCH将并其对应的索引号发送给 UE, UE通过索引号查表得到分配的重复周期和重复长度。 这样， 索引号就 需要包括在 E-AGCH信道的信息结构中。 (四） UE使用上行半 争态 E-PUCH信道资源进行 VoIP业务数据包的
HARQ初始传输给 Node B (对应于上述的步骤 S604 ) 通常， VoIP业务的数据包是周期性的， 每 20ms—个新的数据包。 因此 可以以 20ms为周期分配一个或者多个子帧或者帧的半 争态 E-PUCH信道资 源给 UE。这样， UE可以上行传输每 20ms产生的一个新的数据包给 Node B , 所有 VoIP业务的新的上行数据包都通过半静态 E-PUCH信道进行 HARQ初 始传输给 Node B。
(五） Node B接收半静态 E-PUCH信道（对应于上述的步骤 S606 )
Node B判断接收到的 VoIP业务数据包是否为接收正确，如果接收正确， 则通过半静态 E-HICH信道发送 HARQ ACK消息给 UE,该数据包传输完成； 如果接收错误，则保存错误的数据包，并通过半静态 E-HICH信道发送 HARQ NACK消息给 UE。 具体地， Node B根据上述（三） 中分配的半静态 E-PUCH信道资源接 收每个 UE发送的半静态 E-PUCH信道，判断该 VoIP业务数据包是否接收正 确。如果接收正确， 则通过半 争态 E-HICH信道发送 HARQ ACK (接收正确） 消息给 UE, 该数据传输完成。 如果接收错误， 则通过半静态 E-HICH信道发 送 HARQ NACK (接收错误） 消息给 UE, 并进行下面的处理 （六）。 其中， 使用的 E-HICH信道， 相应于上述（三） 中的两种分配方法， 可 以使用与 4吏权半静态 E-PUCH 信道资源的 E-AGCH 对应的一条半静态 E-HICH信道及一个或者多个签名序列，或者使用分配给该 UE的一条半 争态 E-HICH信道及一个或者多个签名序列。 (六） Node B通过 E-AGCH动态分配调度 E-PUCH资源给 UE用于重 传传输失败的 VoIP数据包 （对应于上述的步骤 S606 ) 对于每一个接收错误的 VoIP数据包， Node B都将以现有的 HSUPA技 术中的调度传输方式，通过 E-AGCH动态分配调度 E-PUCH资源给 UE用于 重传该 VoIP数据包。 在 TD-SCDMA系统的 HSUPA技术中， 为了区分普通的调度传输和重 传， Node B在通过 E-AGCH动态分配调度 E-PUCH资源来重传传输失败的 VoIP数据包时， 必须明确指示 UE。 例如， 在 E-AGCH信道上增加新的信令 信息， 或者对 E-AGCH信道上的部分内容进行特定的处理， 或者对现有信息 结构中的信息进行修改和增强， 使得 UE可以识别出该 E-AGCH分配的调度 E-PUCH资源的特定用途。
(七） UE使用动态分配的调度 E-PUCH资源重传传输失败的 VoIP数 据包给 Node B (对应于上述的步骤 S608 ) 在 TD-SCDMA系统的 HSUPA技术中，每个 TTI只能传输一个数据包。 因此， 在 UE侧， 如果某个 TTI通过 E-AGCH动态分配的 E-PUCH资源被明 确指示用来进行 VoIP 业务的数据包重传， 贝l UE 使用动态分配的调度 E-PUCH资源重传一个先前传输失败的 VoIP业务数据包给 Node B。
(八） Node B接收动态分配的调度 E-PUCH信道（对应于上述的步骤
S610 ) Node B判断接收到的重传 VoIP数据包或者该数据包与此前接收错误的
VoIP数据包合并后的数据包是否正确， 如果接收正确， 则通过调度 E-HICH 信道发送 HARQ ACK消息给 UE, 该数据包传输完成； 如果接收错误， 则保 存接收到的错误数据包，并通过调度 E-HICH信道发送 HARQ NACK消息给 UE, 然后进行到后面的处理 （九）。 具体地， 在 Node B中， 如果此前分配给 UE的调度 E-PUCH被明确指 示用来进行 VoIP数据包的重传， 则在接收到调度 E-PUCH信道后， 判断该 VoIP业务数据包是否接收正确， 或者将接收到的重传数据与此前接收错误的 数据进行合并处理后， 判断合并后的 VoIP业务数据包是否接收正确。 然后， 使用现有 HSUPA 技术中的调度传输方式， 如果接收正确， 则通过调度 E-PUCH信道对应的调度 E-HICH信道和签名序列发送 HARQ ACK消息给 UE, 该数据传输完成。 如果仍然接收错误， 则保存该错误的数据， 并通过调 度 E-PUCH信道对应的调度 E-HICH信道发送 HARQ NACK消息给 UE , 并 进行到后面的处理 （九）。 此时， 保存的错误数据可以是合并处理后的数据， 也可以是分别保存的此前接收错误的数据和新接收错误的数据。 (九）基站判断该 VoIP业务数据包的重传次数时候是否达到某一个预 定阈值， 如果判断结果为否， 则返回到上述的处理（六）（对应于上述的步骤 S610 ) 具体地， 如果重传失败， 则 Node B判断该 VoIP业务数据包被重传是否 超过某一个预定阈值。 该预定阈值通常是由 RNC或者 Node B在业务初时建 立时， 即在处理（二） 中配置给 Node B和 UE的。 如果重传达到该预定的重 传次数， 但该 VoIP数据包仍然没有被 Node B正确接收， 则该 VoIP数据包 传输过程结束， 在 UE中， 丢弃该 VoIP数据包； 否则， 返回到处理 （六）。 方法实施例三 才艮据本发明实施例， 提供了一种下行实时业务传输方法， 用于终端与基 站之间进行下行实时业务传输， 其中， 终端与基站之间存在资源分配控制信 道和信息反馈控制信道。 图 8 是根据本发明实施例的下行实时业务传输方法的流程图。 如图 8 所示，根据本发明实施例的下行实时业务传输方法包括以下处理（步骤 S802- 步骤 S810 ): 步骤 S802, 基站为终端分配半静态业务信道资源； 其中， 在基站对半 静态业务信道资源进行重配置或释放之前， 终端能够持续使用半静态业务信 道资源； 步骤 S804 , 基站使用半 争态业务信道资源进行实时业务数据包的 HARQ的初始传输； 步骤 S806, 终端接收半静态业务信道资源， 判断初始传输的实时业务 数据包是否正确， 在判断初始传输的实时业务数据包错误的情况下， 向基站 反馈 HARQ接收错误指示消息； 步骤 S808 , 基站为终端分配动态业务信道资源； 步骤 S810, 基站使用动态业务信道资源重传实时业务数据包； 步骤 S812, 终端接收动态业务信道资源， 判断重传的实时业务数据包 是否正确， 在判断重传的实时业务数据包错误的情况下， 向基站反馈 HARQ 接收错误指示消息。 在步骤 S806和步骤 S812 中， 在终端判断初始传输或重传的实时业务 数据包错误的情况下， 终端通过信息反馈控制信道发送混合自动重传请求接 收错误指示消息给基站， 且终端保存错误的实时业务数据包。 以下将以 VoIP 业务为例来进一步描述本实施例的各个处理步骤。 在 TD-SCDMA系统的 HSDPA技术中， 其中， HS-SCCH和 HS-SICH物理信道 分别对应于下行实时业务传输相关的从基站到终端方向的资源分配控制信道 和终端到基站的信息反馈控制信道， 而 HS-PDSCH 则对应于业务信道。 在 MAC层中， 由 MAC-hs子层及实体来管理和使用上述控制信道和业务信道 资源。 可以参照图 9对本发明实施例进行如下描述：
(一） 在网络侧配置 HS-PDSCH、 HS-SCCH, HS-SICH信道资源池 按现有网络结构， 即， 无线网络由 RNC和 Node B两个网元组成， RNC 与 Node B通过 lub接口相连接， 首先由 RNC配置 HS-PDSCH、 HS-SCCH、 和 HS-SICH信道资源池， 然后由 RNC通过 lub接口向 Node B发起 NBAP 十办议中物理共享信道重配置 （ Physical Shared Channel Reconfiguration ) 过程 来将这些资源配置信息发送给 Node B。 如果无线网络只有 Node B—个网元， 则该过程可以由 Node B内部的 相关功能模块之间相互配合来实现。 在此过程中， 在 Node B中建立一个 MAC-hs子层及实体来调度管理这 些信道资源池。
(二） 网络侧为 UE分配 HS-SCCH和半静态 HS-SICH信道资源 网络侧为 UE分配 HS-SCCH和半静态 HS-SICH信道资源。按现有网络 结构， 通常由 RNC来确定为一个 UE分配 HSDPA资源进行业务传输。 RNC 通过 lub接口向 Node B发起 NBAP协议中的无线链路建立过程 ( Radio Link Setup )和同步 /异步无线链路重配置过程（ Radio Link Reconfiguration )向 Node B请求为 UE分配 HS-SCCH和半静态 HS-SICH信道资源， Node B分配并保 存这些资源， 然后反馈给 RNC。 如果网络侧的无线网络只有 Node B一个网 元， 则该过程可以由 Node B内部的相关功能模块之间相互配合来实现。 在分配 HS-SCCH时， 可以为 UE分配 1条或者多条 HS-SCCH信道资 源。 在分配半静态 HS-SICH信道资源时， 可以与分配的每一条 HS-SCCH— 一对应分配一条半 争态 HS-SICH信道；或者为 UE分配一条半 争态 HS-SICH 信道用来作为使用半 争态 HS-PDSCH 信道资源进行 VoIP 业务数据包的 HARQ初始传输时的信息反馈控制信道资源。 网络侧将上述分配的 HS-SCCH和半静态 HS-SICH信道资源通过高层 信令发送给 UE。 按现有网络结构， 该过程由 RNC通过 Uu接口 （网络侧与 UE间的接口）向 UE发起 RRC十办议中的 RRC连接建立过程（ RRC connection establishment )、 无线 载建立过程 （ Radio Bearer Establishment )、 无线 载 重西己置过程 ( Radio Bearer Reconfiguration )、无线 Ϊ载释放过程 ( 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 ) 等过程来完成。 如果网络侧的无线网络只有 Node B—个网元， 则 由 Node B通过与上述过程类似的过程来完成将上述资源发送给 UE。
(三） Node B通过 HS-SCCH分配下行半 争态 HS-PDSCH信道资源给 UE (对应于上面的步骤 S802 )
Node B通过 HS-SCCH(即，资源分配控制信道）分配半静态 HS-PDSCH 信道资源给 UE时， 需要明确指示并区分现有 HSDPA技术中 Node B通过 HS-SCCH动态分配下行 HS-PDSCH信道资源。与现有 HSUPA技术中 Node B 通过 HS-SCCH 动态分配的下行 HS-PDSCH 信道资源不同的是， 通过 HS-SCCH分配半静态 HS-PDSCH信道资源， UE在接收到分配信息后可以持 续使用， 直到 Node B通过 HS-SCCH重新配置半 争态 HS-PDSCH信道资源 或者释放半争态 HS-PDSCH信道资源。 其中半争态 HS-PDSCH信道在子帧 或者帧上可以是连续的或者周期性的。 在图 2所示的现有 HS-SCCH信息结 构中的信息不能持续授权。 因此， 需要增强或者修改 HS-SCCH信道的信息 结构。 一种可能的增强方法是： 以发送和接收到 HS-SCCH的子帧或者帧为参 考， 在预定时间后按重复周期 （ Repeat Period ) 和重复长度 ( Repeat Length ) 分配 HS-PDSCH信道资源， 其中， 重复周期和重复长度由 Node B分配并通 过 HS-SCCH发送给 UE。 在 TD-SCDMA系统中， 目前定义的重复周期取值 有 1 , 2, 4 , 8 , 16, 32, 64, 每一种重复周期下可取的重复长度分别为 1 , 2 , 4 , 8 , 16, 32 , 64 , 共计 127种。 可以将这 127种中的部分或者全部编 成一个表， 每一个分配一个索引号。 该表作为系统参数在 Node B和 UE中保 存， Node B分配重复周期和重复长度通过 HS-SCCH将并其对应的索引号发 送给 UE, UE通过索引号查表得到分配的重复周期和重复长度。 这样， 索引 号就需要包括在 HS-SCCH信道的信息结构中。
(四） Node B使用下行半争态 HS-PDSCH信道资源进行 VoIP业务数 据包的 HARQ初始传输给 UE (对应于步骤 S804 ) 通常， VoIP业务的数据包是周期性的， 每 20ms—个新的数据包。 因此 可以以 20ms为周期分配一个或者多个子帧或者帧的半 争态 HS-PDSCH信道 资源给 UE。 这样， Node B可以下行传输每 20ms产生的一个新的数据包给 UE, 所有 VoIP 业务的新的下行数据包都通过半静态 HS-PDSCH信道进行 HARQ初始传输给 UE。 (五） UE接收半静态 HS-PDSCH信道（对应于步骤 S806 )
UE判断接收到的 VoIP业务数据包是否为接收正确， 如果接收正确， 则 通过半静态 HS-SICH信道发送 HARQ ACK消息给 Node B,该数据包传输完 成； 如果接收错误， 则保存错误的数据包， 通过半静态 HS-SICH 信道发送 HARQ NACK消息给 Node B , 并进行处理 （六）。 UE才艮据本实施例的处理（三）中分配的半静态 HS-PDSCH信道资源接 收 Node B发送的半静态 HS-PDSCH信道，判断该 VoIP业务数据包是否为接 收正确。 如果接收正确， 则通过半静态 HS-SICH信道发送 HARQ ACK (接 收正确） 消息给 Node B , 该数据传输完成。 如果接收错误， 则通过半静态 HS-SICH信道发送 HARQ NACK (接收错误 ) 消息给 Node B, 并进行到以 下的处理 （六）。 其中， 使用的 HS-SICH信道， 相应于本实施例的上述处理 （三） 中的 两种分配方法， 可以使用与 4受权半 争态 HS-PDSCH信道资源的 HS-SCCH对 应的一条半静态 HS-SICH 信道， 或者使用分配给该 UE 的一条半静态 HS-SICH信道。 (六） Node B通过 HS-SCCH动态分配 HS-PDSCH资源给 UE用于重 传传输失败的 VoIP数据包 （对应于步骤 S808 ) 对于每一个接收错误的 VoIP数据包， Node B都将以现有的 HSDPA技 术中的调度传输方式， 通过 HS-SCCH动态分配 HS-PDSCH资源给 UE用于 重传该 VoIP数据包。
(七） Node B使用动态分配的 HS-PDSCH资源重传传输失败的 VoIP 数据包给 UE (对应于步骤 S810 )
(八） UE接收动态分配的 HS-PDSCH信道（对应于步骤 S812 )
UE 判断接收到的重传 VoIP 数据包或者该数据包与此前接收错误的 VoIP数据包合并后的数据包是否正确， 如果接收正确， 则通过 HS-SICH信 道发送 HARQ ACK消息给 Node B , 该数据包传输完成； 如果接收错误， 则 保存接收到的错误数据包， 通过 HS-SICH信道发送 HARQ NACK 消息给 Node B , 并进行下面的本实施例中的处理 （九）。 具体地， UE在接收到动态分配的 HS-PDSCH信道后， 判断该 VoIP业 务数据包是否为接收正确， 或者将接收到的重传数据与此前接收错误的数据 进行合并处理后， 判断合并后的 VoIP业务数据包是否接收正确。 然后， 以现 有 HSDPA技术中的方式， 如果接收正确， 则通过与动态分配该 HS-PDSCH 信道资源的 HS-SCCH信道对应的 HS-SICH信道发送 HARQ ACK消息给 Node B, 该数据传输完成。 如果仍然接收错误， 则保存该错误的数据， 并通 过与动态分配该 HS-PDSCH信道资源的 HS-SCCH信道对应的 HS-SICH信 道发送 HARQ NACK消息给 Node B, 并进行以下的处理（九）。 此时， 保存 的错误数据可以是合并处理后的数据， 也可以是分别保存的此前接收错误的 数据和新接收错误的数据。
(九）基站判断该 VoIP业务数据包的重传次数时候是否达到某一个预 定阈值， 如果达到， 该数据包传输结束； 如果没有达到， 则返回到本实施例 的上述处理 （六） 如果重传失败， Node B 判断该 VoIP业务数据包被重传是否超过某一个 预定阈值。 该预定阈值通常是由 RNC或者 Node B在业务初时建立时， 即在 本实施例的上述处理（二）中配置给 Node B和 UE的。 如果重传达到该预定 的重传次数， 但该 VoIP数据包仍然没有被 UE正确接收， 则该 VoIP数据包 传输过程结束， 在 Node B中， 丢弃该 VoIP数据包； 否则， 返回到本实施例 的上述处理 （六）。 通过上面的描述可以看出， 在本发明的实施例中， 通过为终端分配半静 态业务信道资源进行实时业务数据包的 HARQ初始传输，为终端分配动态业 务信道资源进行实时业务数据包的 HARQ 重传， 可以保证业务传输的实时 性， 减小业务传输时的控制信令开销， 从而可以保证业务的 QoS要求， 并且 可以通过资源分配控制信道及时地重配置半争态业务信道资源。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布 在多个计算装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程 序代码来实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 或 者将它们分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬件和软 件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书 一种实时业务传输的资源分配方法， 用于基站为终端分配实时业务传输 的业务信道资源， 其中， 所述终端与所述基站之间存在资源分配控制信 道， 其特征在于， 所述方法包括：
所述基站通过所述资源分配控制信道为所述终端分配半 争态业务 信道资源用于实时业务数据包的混合自动重传请求的初始传输； 其中， 在所述基站对所述半争态业务信道资源进行重配置或释放之前， 所述终 端能够持续使用所述半静态业务信道资源；
所述基站通过所述资源分配控制信道为所述终端分配动态业务信 道资源用于实时业务数据包的混合自动重传请求的重传， 其中， 所述终 端只能在分配的时间段内使用所述动态业务信道资源。 一种上行实时业务传输方法， 用于终端与基站之间进行上行实时业务传 输， 其中， 所述终端与所述基站之间存在资源分配控制信道和信息反馈 控制信道， 其特征在于， 所述方法包括：
所述基站为所述终端分配半静态业务信道资源； 其中， 在所述基站 对所述半静态业务信道资源进行重配置或释放之前， 所述终端能够持续 使用所述半静态业务信道资源；
所述终端使用所述半 争态业务信道资源进行实时业务数据包的混 合自动重传请求的初始传输；
所述基站接收所述半静态业务信道资源，判断初始传输的所述实时 业务数据包是否正确， 在判断初始传输的所述实时业务数据包错误的情 况下， 为所述终端分配动态业务信道资源；
所述终端使用所述动态业务信道资源重传所述实时业务数据包； 所述基站接收所述动态业务信道资源，判断重传的所述实时业务数 据包是否正确， 在判断重传的所述实时业务数据包错误， 且重传次数未 达到预定阈值的情况下， 重新为所述终端分配动态业务信道资源。 根据权利要求 2所述的上行实时业务传输方法， 其特征在于， 所述基站 通过所述资源分配控制信道分配所述半 争态业务信道资源和所述动态业 务信道资源。
4. 根据权利要求 2所述的上行实时业务传输方法， 其特征在于， 在所述基 站判断初始传输或重传的所述实时业务数据包正确的情况下， 通过所述 信息反馈控制信道发送混合自动重传请求接收正确指示消息给所述终 端。
5. 根据权利要求 2所述的上行实时业务传输方法， 其特征在于， 在所述基 站判断初始传输的或重传的所述实时业务数据包错误的情况下， 所述方 法进一步包括：
所述基站通过所述信息反馈控制信道发送混合自动重传请求接收 错误指示消息给所述终端；
所述基站保存错误的所述实时业务数据包。
6. 根据权利要求 5所述的上行实时业务传输方法， 其特征在于， 所述判断 重传的所述实时业务数据包是否正确的操作具体包括：
所述基站判断接收到的重传的所述实时业务数据包是否正确；或者 所述基站判断接收到的重传的所述实时业务数据包与先前保存的 接收错误的所述实时业务数据包合并后的数据包是否正确。
7. 根据权利要求 2所述的上行实时业务传输方法， 其特征在于， 通过如下 操作分配所述信息反馈控制信道：
通过分配所述半静态业务信道资源时使用的资源分配控制信道给 所述终端分配半静态信息反馈控制信道， 其中， 所述半静态信息反馈控 制信道与所述资源分配控制信道——对应。
8. 根据权利要求 2所述的上行实时业务传输方法， 其特征在于， 通过如下 操作分配所述信息反馈控制信道：
通过高层信令， 为所述终端分配半静态信息反馈控制信道。
9. 一种下行实时业务传输方法， 用于终端与基站之间进行下行实时业务传 输， 其中， 所述终端与所述基站之间存在资源分配控制信道和信息反馈 控制信道， 其特征在于， 所述方法包括：
所述基站为所述终端分配半静态业务信道资源； 其中， 在所述基站 对所述半静态业务信道资源进行重配置或释放之前， 所述终端能够持续 使用所述半静态业务信道资源； 所述基站使用所述半静态业务信道资源进行实时业务数据包的混 合自动重传请求的初始传输；
所述终端接收所述半争态业务信道资源，判断初始传输的所述实时 业务数据包是否正确， 在判断初始传输的所述实时业务数据包错误的情 况下， 向所述基站反馈混合自动重传请求接收错误指示消息；
所述基站为所述终端分配动态业务信道资源；
所述基站使用所述动态业务信道资源重传所述实时业务数据包； 所述终端接收所述动态业务信道资源，判断重传的所述实时业务数 据包是否正确， 在判断重传的所述实时业务数据包错误的情况下， 向所 述基站反馈混合自动重传请求接收错误指示消息。
10. 根据权利要求 9所述的下行实时业务传输方法， 其特征在于， 所述基站 通过所述资源分配控制信道分配所述半 争态业务信道资源和所述动态业 务信道资源。
11. 根据权利要求 9所述的下行实时业务传输方法， 其特征在于， 在所述终 端判断初始传输或重传的所述实时业务数据包正确的情况下， 通过所述 信息反馈控制信道发送混合自动重传请求接收正确指示消息给所述基 站。
12. 根据权利要求 9所述的下行实时业务传输方法， 其特征在于， 在所述终 端判断初始传输或重传的所述实时业务数据包错误的情况下， 所述方法 进一步包括：
所述终端通过所述信息反馈控制信道发送混合自动重传请求接收 错误指示消息给所述基站；
所述终端保存错误的所述实时业务数据包。
13. 根据权利要求 12所述的下行实时业务传输方法， 其特征在于， 所述判断 重传的所述实时业务数据包是否正确的操作包括：
所述终端判断接收到的重传的所述实时业务数据包是否正确；或者 所述终端判断接收到的重传的所述实时业务数据包与先前保存的 接收错误的所述实时业务数据包合并后的数据包是否正确。
14. 根据权利要求 9所述的下行实时业务传输方法， 其特征在于， 在所述终 端判断重传的所述实时业务数据包错误， 向所述基站反馈混合自动重传 请求接收错误指示消息的情况下， 如果所述基站判断重传次数未达到预 定阈值， 则重新为所述终端分配动态业务信道资源。
15. 根据权利要求 9所述的下行实时业务传输方法， 其特征在于， 通过如下 操作分配所述信息反馈控制信道：
通过分配所述半静态业务信道资源时的资源分配控制信道给所述 终端分配半静态信息反馈控制信道， 其中， 所述半静态信息反馈控制信 道与所述资源分配控制信道——对应。
16. 根据权利要求 9所述的下行实时业务传输方法， 其特征在于， 通过如下 操作分配所述信息反馈控制信道：
通过高层信令， 为所述终端分配半静态信息反馈控制信道。
17. 根据权利要求 1、 2、 或 9所述的方法， 其特征在于， 所述持续使用的方 式包括： 时间上连续使用、 周期性使用。
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