WO2011057566A1 - 半静态调度数据的传输方法及装置 - Google Patents

半静态调度数据的传输方法及装置 Download PDF

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Publication number
WO2011057566A1
WO2011057566A1 PCT/CN2010/078603 CN2010078603W WO2011057566A1 WO 2011057566 A1 WO2011057566 A1 WO 2011057566A1 CN 2010078603 W CN2010078603 W CN 2010078603W WO 2011057566 A1 WO2011057566 A1 WO 2011057566A1
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WIPO (PCT)
Prior art keywords
semi
carrier
scheduling data
persistent scheduling
transmitting
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PCT/CN2010/078603
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English (en)
French (fr)
Inventor
覃忠宾
权威
张戬
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112012011063-2A priority Critical patent/BR112012011063A2/pt
Priority to JP2012525879A priority patent/JP2013502862A/ja
Priority to EP10829530.4A priority patent/EP2451233B1/en
Priority to AU2010317260A priority patent/AU2010317260B2/en
Priority to RU2012124028/07A priority patent/RU2501193C1/ru
Publication of WO2011057566A1 publication Critical patent/WO2011057566A1/zh
Priority to US13/401,382 priority patent/US8687582B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037Inter-user or inter-terminal allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/006Quality of the received signal, e.g. BER, SNR, water filling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078Timing of allocation
    • H04L5/0082Timing of allocation at predetermined intervals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1893Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • SPS Semi-Persistent Scheduling
  • the eNB eNodeB, the base station
  • the UE User Equipment
  • the UE uses pre-allocated resources for data transmission.
  • an eNB configures an SPS period of a VoIP (voice over IP) service through RRC (Radio Resource Control) signaling, and specific
  • the SPS resource is activated, modified, and released by a PDCCH (Physical Downlink Control Channel) command.
  • PDCCH Physical Downlink Control Channel
  • the transmission of SPS data can only be performed periodically on a single carrier using a fixed modulation and coding scheme.
  • the dynamics of the SPS algorithm is appropriately increased.
  • the following technical solutions are used: 1) initial transmission of each N SPS data on a different carrier by hopping on a different carrier; 2) indicating initial transmission by displaying signaling when an initial transmission and a retransmission collision occur Place it on another carrier for transmission.
  • the inventor finds that the transmission mode of the SPS data in the prior art may bring about a problem that the retransmission probability of the SPS data is relatively high, and cannot achieve flexible pairing of multiple users, thereby affecting the system. Throughput. Summary of the invention
  • Embodiments of the present invention provide a method and apparatus for transmitting semi-persistent scheduling data, which effectively reduces the probability of semi-static traffic retransmission and improves the throughput of the system.
  • a method for transmitting semi-persistent scheduling data includes:
  • Determining, to the user, the determined initial transmission carrier for transmitting semi-persistent scheduling data Determining, to the user, the determined initial transmission carrier for transmitting semi-persistent scheduling data; transmitting the semi-persistent scheduling data to the user by the indicated initial transmission carrier for transmitting semi-persistent scheduling data.
  • a transmission device for semi-persistent scheduling data comprising:
  • a determining unit configured to determine an initial carrier for semi-persistent scheduling data according to channel condition information of each carrier in the multi-carrier and a gain of multi-user multiple input multiple output antenna unit pairing; an indicating unit, configured to indicate to the user An initial carrier for determining semi-static scheduling data determined by the determining unit;
  • a transmitting unit configured to transmit the semi-static data to the user by using an initial transmission carrier that is used by the indication unit to transmit semi-persistent scheduling data.
  • a method for transmitting semi-persistent scheduling data includes:
  • the user equipment receives the indication sent by the base station, where the indication is specifically used to: indicate an initial transmission carrier for transmitting semi-persistent scheduling data, where the initial transmission carrier is the channel status information of each carrier in the multi-carrier according to the base station And multi-user multiple input multiple output antenna unit pairing gain determination;
  • the user equipment receives semi-persistent scheduling data from the base station by using the initial transmission carrier.
  • a user equipment including:
  • a transceiver unit configured to receive an indication sent by the base station
  • a processing unit configured to determine, according to the indication received by the transceiver unit, the base station to transmit And semi-statically scheduling the initial carrier of the data, and instructing the receiving unit to receive the semi-persistent scheduling data from the base station by using the initial transmission carrier, where the initial transmission carrier is the base station according to each carrier in the multiple carrier
  • the channel condition information and the gain of the multi-user multiple input multiple output antenna unit pairing are determined.
  • the method and device for transmitting semi-persistent scheduling data determining initial transmission for transmitting semi-persistent scheduling data according to channel condition information of each carrier in a multi-carrier and a gain of multi-user multiple input multiple output antenna unit pairing Transmitting, and indicating to the user, the determined transmission carrier for transmitting semi-persistent scheduling data, and further transmitting semi-static data to the user by using an initial transmission carrier for transmitting semi-persistent scheduling data indicated by the indication unit;
  • the initial carrier used for transmitting the semi-persistent scheduling data of the user in the technical solution provided by the embodiment of the present invention is based on channel condition information of each carrier in the multi-carrier and multi-user multiple input multiple output antenna unit pairing.
  • FIG. 1 is a flowchart of a method for transmitting semi-persistent scheduling data according to Embodiment 1 of the present invention
  • FIG. 2 is a block diagram of a semi-static scheduling data transmission apparatus according to Embodiment 1 of the present invention
  • FIG. 3 is a semi-static embodiment according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic diagram of a feedback mode of semi-static scheduling data in a method for transmitting semi-static scheduling data according to Embodiment 2 of the present invention;
  • FIG. 5 is another static tone in a method for transmitting semi-persistent scheduling data according to Embodiment 2 of the present invention. Schematic diagram of the feedback mode of the business;
  • FIG. 6 is a block diagram of a semi-static scheduling data transmission apparatus according to Embodiment 2 of the present invention
  • FIG. 7 is a block diagram of a semi-static scheduling data transmission apparatus according to Embodiment 2 of the present invention
  • FIG. 9 is a block diagram showing the composition of a user equipment in Embodiment 3 of the present invention.
  • the embodiment of the invention provides a method for transmitting semi-persistent scheduling data. As shown in FIG. 1, the method includes:
  • the channel status of the carrier is obtained by feedback from the data receiving end, and the channel status information of the carrier includes three types: CQI/CSI (Channel Quality Indicator, channel state information, channel state information), ( Rank indicator , rank information), PMI (Precoding matrix index).
  • CQI/CSI Channel Quality Indicator, channel state information, channel state information), ( Rank indicator , rank information), PMI (Precoding matrix index).
  • CQI/CSI Channel Quality Indicator, channel state information, channel state information), ( Rank indicator , rank information), PMI (Precoding matrix index).
  • CQI/CSI Channel Quality Indicator, channel state information, channel state information), ( Rank indicator , rank information), PMI (Precoding matrix index).
  • the most suitable user pairing is selected by a certain algorithm.
  • the matching principle includes the following two aspects, specifically: First, if it is VoIP Pairing between users to meet the principle of minimum retransmission probability; Second, if VoIP users are paired with other non-VoIP users, the delay-sensitive
  • multi-user multi-input multi-output days are determined according to the above principles
  • the initial carrier for transmitting the semi-persistent scheduling data is determined according to the selected pair of multi-user multiple input multiple output antenna unit paired gains.
  • Step 102 Indicate, to the user, the determined initial transmission carrier for transmitting semi-persistent scheduling data, so that when receiving the transmitted semi-static data, only the carrier that needs to listen to the transmission data can receive the transmitted half. Static data.
  • the first carrier that is used to transmit the semi-persistent scheduling data to the user may include the following two methods: First, adding a physical layer channel to each carrier of the multi-carrier Setting a 1-bit indicator bit in the physical layer channel to indicate whether semi-persistent scheduling data is scheduled to be transmitted on the carrier; second, selecting a downlink primary carrier, in the selected downlink primary A physical layer channel is added to the carrier, and an indication bit of a predetermined length is set in the physical layer channel for indicating an initial transmission carrier for transmitting semi-persistent scheduling data.
  • the embodiment of the present invention provides a device for transmitting semi-persistent scheduling data.
  • the device includes: a determining unit 21, an indicating unit 22, and a transmitting unit 23.
  • a determining unit 21, configured to determine, according to channel condition information of each carrier in the multicarrier and a gain of multi-user multiple input multiple output antenna unit pairing, an initial carrier for semi-persistent scheduling data;
  • the indicating unit 22 is configured to indicate to the user, the initial carrier that is used by the determining unit 21 to transmit the semi-persistent scheduling data, and the transmitting unit 23, configured to indicate by the indicating unit 22
  • the initial transmission carrier for transmitting semi-persistent scheduling data transmits the semi-static data to the user.
  • the channel condition of the carrier is fed back by the data receiving end, and the channel status information of the carrier includes three types: CQI/CSI (channel quality information/channel state information), RI (rank information), PMI (precoding matrix information) .
  • CQI/CSI channel quality information/channel state information
  • RI rank information
  • PMI precoding matrix information
  • the matching principle includes the following two aspects, specifically: First, if it is VoIP Pairing between users to meet the whole The principle of minimum retransmission probability is the principle; secondly, if the VoIP user is paired with other non-VoIP users, the throughput of the delay-sensitive service is maximized under the premise of satisfying the packet loss rate; After determining the pairing of the multi-user multiple input multiple output antenna unit, the initial carrier for transmitting the semi-persistent scheduling data is determined according to the selected pair of multi-user multiple input multiple output antenna unit paired gains.
  • the carrier for the initial transmission of the semi-persistent scheduling data is determined according to the channel condition information of each carrier in the multi-carrier and the gain of the multi-user multiple input multiple output antenna unit pairing, and the determination is indicated to the user.
  • the initial carrier used for transmitting the semi-persistent scheduling data of the user in the technical solution provided by the example is determined according to the channel condition information of each carrier in the multi-carrier and the gain of the multi-user multiple-input multiple-output antenna unit pairing, thereby effectively improving
  • the semi-static scheduling data transmission is correct, which reduces the probability of semi-persistent scheduling data retransmission and improves the system throughput.
  • the embodiment of the invention provides a method for transmitting semi-persistent scheduling data. As shown in FIG. 3, the method includes:
  • the 301 Determine an initial transmission carrier used for transmitting semi-persistent scheduling data according to channel condition information of each carrier in the multi-carrier and a gain of multi-user multiple input multiple output antenna unit pairing.
  • the channel status of the carrier is fed back by the data receiving end, and the channel status information of the carrier includes three types: CQI / CS I (channel quality information / channel status information), RI (rank information), PMI (precoding matrix information) ).
  • CQI / CS I channel quality information / channel status information
  • RI rank information
  • PMI precoding matrix information
  • the matching principle includes the following two aspects, specifically: First, if It is the pairing between Vo IP users to meet the principle of the lowest overall retransmission probability. Second, if Vo IP users are paired with other non-Vo IP users, to maximize the packet loss rate, maximize the The throughput of the delay sensitive service is a principle; after determining the pairing of the multi-user multiple input multiple output antenna unit according to the above principle, determining the transmission for the transmission according to the selected multi-user multiple input multiple output antenna unit pairing gain The initial carrier of semi-statically scheduled data.
  • 302. Indicate, to the user, the determined initial transmission carrier for transmitting semi-persistent scheduling data, so that when receiving the transmitted semi-static data, only the carrier that needs to listen to the transmission data can receive the transmitted half. Static data.
  • the indicating the initial transmission carrier for transmitting the semi-persistent scheduling data to the user may specifically include the following two methods:
  • a physical layer channel is added to each carrier of the multi-carrier, and a 1-bit indicator bit is set in the physical layer channel to indicate whether semi-persistent scheduling data is scheduled to be transmitted on the carrier. For example, when the indication bit of the 1-bit is set to 1, it indicates that the semi-persistent scheduling data of the user equipment is scheduled to be transmitted on the carrier, and when the indication bit of the 1-bit is set to 0, the half of the user equipment is indicated.
  • the static scheduling data is not scheduled to be transmitted on the carrier; vice versa, the embodiment of the present invention does not limit this.
  • a downlink primary carrier is selected, a physical layer channel is added to the selected downlink primary carrier, and a predetermined length indication bit is set in the physical layer channel, which is used to indicate the initial transmission of the semi-static scheduling data.
  • the carrier wave, the predetermined length indication bit can be set according to actual needs, for example, 2 bit ⁇ 3b it.
  • the configuration of the foregoing parameters may be implemented by using dedicated signaling, which may be, but not limited to, RRC (Radio Resource Control) signaling.
  • the period of the semi-persistent scheduling data transmission may be specifically set according to actual requirements, for example, 20 milliseconds.
  • the feedback mode of the semi-persistent scheduling data transmission specifically includes two types, which are specifically described in conjunction with FIG. 4 and FIG. 5:
  • the feedback mode of the semi-persistent scheduling data transmission is specifically: transmitting, by the carrier paired with the carrier transmitting the semi-persistent scheduling data, the feedback of the initial transmission and the retransmission of the semi-persistent scheduling data Information, the feedback information includes ACK/NACK, where ACK indicates that the reception is correct, the transmitting end does not need to retransmit; NACK indicates receiving error, and the transmitting end needs to retransmit; subsequent ACK/MCK is abbreviated as ⁇ / ⁇ ; where CC1 and CC1 ' CC2 and CC2' and CC3 and CC3' are mutually paired transmission channels.
  • the user equipment can parse on the corresponding paired transmission channel CC 1 ' to obtain corresponding reception.
  • the terminal receives the feedback information of the semi-persistent scheduling data transmission, and does not need to perform specific feedback information carrier setting on the transmission protocol.
  • This kind of information feedback mode is suitable for the uplink SPS service transmission example.
  • the user equipment since there is a one-to-one correspondence between the uplink data transmission channel (PUSCH) of the LTE system and the feedback channel PHICH of the downlink feedback information, the user equipment knows that the PHICH should be decoded on that downlink carrier to determine the feedback information of the data transmission, and the protocol does not need to be modified.
  • PUSCH uplink data transmission channel
  • PHICH feedback channel
  • the feedback mode of the semi-persistent scheduling data transmission is specifically: selecting a primary feedback carrier, and transmitting, by the selected primary feedback carrier, feedback of initial transmission and retransmission of all semi-static scheduling data.
  • information. CC1' is the selected primary feedback carrier, and the feedback information of the initial transmission and retransmission of CC1, CC2 and CC3 are fed back by the selected primary feedback carrier CC1'.
  • the feedback mode of semi-persistent scheduling data is suitable for enhanced feedback of downlink transmission, on the primary carrier
  • the feedback resources of the PUCCH may be pre-assigned to the UE performing the downlink SPS service transmission, and need to effectively the PDSCH of CC1 (Phys i ca l Downl ink Shared Channe) l, Physical downlink shared channel)
  • CC1 Physical Downlink shared channel
  • the A/N resource configuration of the A/N according to the SPS data transmission period and the corresponding pre-allocated resources needs to be performed on each carrier by using RRC dedicated signaling.
  • RRC dedicated signaling When some of the provisioned PUCCH resources are not used, they can be used for other purposes.
  • step 306 Receive feedback information of a semi-persistent scheduling data transmission returned by the user, where the feedback information includes correct reception or reception error requiring retransmission; if the received feedback information is correctly received, perform step 307; if received When the feedback information needs to be retransmitted for receiving errors, step 306 is performed. It should be noted that steps 307 and 306 may not be performed at the same time, that is, when 306 is executed, 307 may not be executed; when 307 is executed, 306 may not be executed.
  • step 305 is performed to determine that the receiving end correctly receives the semi-persistent scheduling data.
  • the embodiment of the present invention provides a device for transmitting semi-persistent scheduling data.
  • the device includes: a determining unit 41, an indicating unit 42, a configuration unit 43, a transmitting unit 44, a receiving unit 45, and a retransmission unit 46.
  • a determining unit 41 configured to determine, according to channel condition information of each carrier in the multicarrier and a gain of multi-user multiple input multiple output antenna unit pairing, an initial transmission for transmitting semi-persistent scheduling data
  • the channel condition of the carrier is fed back by the data receiving end, and the channel status information of the carrier includes three types: CQI/CSI (channel quality information/channel state information), RI (rank information), PMI (precoding matrix) information).
  • CQI/CSI channel quality information/channel state information
  • RI rank information
  • PMI precoding matrix
  • the matching principle includes the following two aspects, specifically: First, if it is VoIP Pairing between users to meet the principle of minimum retransmission probability; Second, if VoIP users are paired with other non-VoIP users, the delay-sensitive service is maximized to meet the packet loss rate.
  • the throughput is a principle; after determining the pairing of the multi-user multiple input multiple output antenna unit according to the above principle, determining the used for transmitting the semi-static scheduling data according to the selected pair of multi-user multiple input multiple output antenna unit paired gains Initial carrier.
  • the indication unit 42 is configured to indicate to the user, the initial transmission carrier that is used by the determining unit 41 to transmit the semi-persistent scheduling data
  • the configuration unit 43 is configured to: Configuring a period of the semi-persistent scheduling data transmission, a feedback mode of the semi-persistent scheduling data transmission, and a location and a size of the carrier resource used for the semi-persistent scheduling data transmission.
  • the transmitting unit 44 is configured to be configured according to the configuration unit 43.
  • the parameters of the data transmission are semi-statically scheduled, and the semi-static data is transmitted to the user by the initial transmission carrier indicated by the indication unit 42 for transmitting semi-persistent scheduling data.
  • the semi-persistent scheduling data feedback mode includes: transmitting, by a carrier paired with a carrier that transmits semi-persistent scheduling data, feedback information of the initial transmission and retransmission of the semi-persistent scheduling data; or selecting a primary feedback carrier,
  • the main feedback carrier transmits feedback information of all semi-persistent scheduling data initial transmission and retransmission.
  • the receiving unit 45 is configured to receive the semi-persistent scheduling data transmission returned by the user.
  • Feedback information the feedback information includes correct reception or reception error requiring retransmission; when the feedback information of the semi-persistent scheduling data transmission returned by the user received by the receiving unit 45 is retransmission for receiving error, the retransmission unit 46 uses Retransmitting the semi-static scheduling data to an initial carrier that transmits semi-persistent scheduling data through the transmission unit 44, so as to be connected The receiving end can correctly receive the semi-static scheduling data of the transmission.
  • the indication unit 42 includes: a first adding module 421 and a first setting module 422.
  • the indication unit 42 indicates to the user the initial carrier for transmitting the semi-persistent scheduling data determined by the determining unit 41, first adding the physics on each carrier of the multi-carrier by using the first adding module 421.
  • the first setting module 422 is configured to set a 1-bit indicator bit in the physical layer channel added by the adding module 421, to indicate Whether semi-persistent scheduling data is scheduled to be transmitted on the carrier.
  • the indication unit 42 includes: The module 423, the second adding module 424, and the second setting module 425 are selected.
  • the indication unit 42 When the indication unit 42 indicates to the user the initial carrier for transmitting semi-persistent scheduling data determined by the determining unit 41, first select a downlink primary carrier by using the selecting module 423; and select the downlink primary carrier.
  • the second adding module 424 is configured to add a physical layer channel to the downlink primary carrier selected by the selecting module 423.
  • the second setting module 425 is configured to be configured in the physical layer channel added by the second adding module 424.
  • An indication bit of a predetermined length used to indicate an initial transmission carrier for transmitting semi-persistent scheduling data.
  • the initial carrier for transmitting the semi-persistent scheduling data is determined according to the channel condition information of each carrier in the multi-carrier and the gain of the multi-user multiple-input multiple-output antenna unit pairing, and the user is instructed to indicate the Determining a transmission carrier for transmitting semi-persistent scheduling data, and transmitting semi-static data to the user by using an initial transmission carrier for transmitting semi-persistent scheduling data indicated by the indication unit; compared with the prior art,
  • the initial transmission carrier for transmitting the semi-persistent scheduling data of the user in the technical solution provided by the embodiment of the present invention is determined according to the channel condition information of each carrier in the multi-carrier and the gain of the multi-user multiple-input multiple-output antenna unit pairing, thereby being effective.
  • the accuracy of the semi-persistent scheduling data transmission is improved, thereby reducing the probability of semi-persistent scheduling data retransmission and improving the throughput of the system.
  • the retransmission is required to be retransmitted, and the semi-static scheduling data is retransmitted by the carrier that initially transmits the semi-persistent scheduling data, so that the same half
  • the initial transmission and retransmission of the static scheduling data are performed on the same carrier, and the initial transmission of different semi-persistent scheduling data can be performed on different carriers, thereby avoiding the conflict between the initial transmission and the retransmission of the service.
  • the embodiment of the present invention further provides a method for transmitting semi-persistent scheduling data, which corresponds to the method of the base station side provided in the first embodiment, and can implement the interaction process between the user equipment and the base station in the first embodiment, as shown in FIG. Show that the method includes:
  • the user equipment receives an indication sent by the base station, where the indication is specifically used to: indicate an initial transmission carrier used to transmit semi-persistent scheduling data, where the initial transmission carrier used to transmit semi-persistent scheduling data is the base station according to the base station.
  • the channel condition information of each carrier in the multi-carrier and the gain of the multi-user multiple-input multiple-output antenna unit pairing are determined;
  • the indication sent by the base station may be: a 1-bit indicator bit set by the base station in a physical layer channel on each carrier of the multi-carrier, the indicator bit is used to indicate whether the semi-persistent scheduling data is scheduled to be transmitted on the carrier. Or: an indication bit of a predetermined length set in the physical layer channel added by the base station on the selected downlink primary carrier, where the indication bit is used to indicate the initial transmission carrier of the semi-static scheduling data.
  • the user equipment receives semi-persistent scheduling data from a base station by using the initial transmission carrier.
  • the method may further include: returning, to the base station, feedback information of the semi-persistent scheduling data transmission, where the feedback information includes correct reception or reception error requiring retransmission.
  • the method may further include: receiving, by the base station, the semi-persistent scheduling data that is retransmitted by the initial transmission carrier.
  • the embodiment of the present invention further provides a user equipment, which can implement the method on the user equipment side. As shown in FIG. 9, the user equipment includes: a transceiver unit 91 and a processing unit 92.
  • the transceiver unit 91 is configured to receive an indication sent by the base station;
  • the processing unit 92 is configured to determine, according to the indication received by the transceiver unit 91, the initial carrier used by the base station to transmit semi-persistent scheduling data, and instruct the receiving unit 91 to receive the half from the base station by using the initial transmission carrier.
  • Static scheduling data wherein, the initial transmission carrier for transmitting semi-persistent scheduling data is determined by the base station according to channel condition information of each carrier in the multi-carrier and multi-user multiple input multiple output antenna unit pairing gain .
  • the transceiver unit 91 may be further configured to: return, to the base station, the feedback information of the semi-persistent scheduling data transmission, where the feedback information includes the correct receiving or receiving error Retransmission. If the feedback information of the transceiver unit 91 is retransmitted for the reception error, the transceiver unit 91 may be further configured to: receive semi-static scheduling data that is retransmitted by the base station by using the initial transmission carrier.
  • the initial transmission carrier used for transmitting the semi-persistent scheduling data of the user in the technical solution provided by the embodiment is determined by the base station according to the channel condition information of each carrier in the multi-carrier and the gain of the multi-user multiple-input multiple-output antenna unit pairing, thereby It effectively improves the correctness of semi-persistent scheduling data transmission, thereby reducing the probability of semi-persistent scheduling data retransmission and improving the throughput of the system.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. , a hard disk or an optical disk, etc., including thousands of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)
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Description

半静态调度数据的传输方法及装置 本申请要求于 2009 年 11 月 10 日提交中国专利局、 申请号为 200910210814.7、发明名称为"半静态调度数据的传输方法及装置 "的中国专 利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及通信领域, 尤其涉及一种半静态调度数据的传输方法及装 置。
背景技术
SPS ( Semi-Persistent Scheduling, 半静态调度)是一种周期性预配 置传输资源的调度方式。 在该调度方式中, eNB (eNodeB, 基站)根据业务 特性激活并配置 UE (User Equipment, 用户设备)所使用半静态调度资源, 在后续的传输过程中, 在不需要任何调度指示信令的情况下, UE周期性地 使用预分配的资源进行数据传输。 例如在 LTE ( long-term evolution, 长 期演进) 系统中, eNB通过 RRC (Radio Resource Control, 无线资源控 制器)信令对 VoIP ( Voice over IP, 互联网电话) 业务的 SPS周期进行配 置,而具体的 SPS资源则通过 PDCCH( Physical Downlink Control Channel, 物理下行控制信道)指令进行激活, 修改以及释放。
在原有单载波系统中, SPS数据的传输只能在单个载波上使用固定的调 制编码方式周期性地进行数据传输, 而现有技术中随着载波聚合的引入, 适当增加了 SPS算法的动态性。 现有技术中釆用如下技术方案: 1 )每 N个 SPS数据初传在不同载波上跳跃变换进行初传; 2 ) 当出现初传和重传沖突 的时候通过显示信令来指示将初传放到另一个载波上进行传输。
在实现上述实施例的过程中, 发明人发现现有技术中的 SPS数据的传 输方式可能带来 SPS数据的重传概率相对较高的问题, 并且不能实现多用 户的灵活配对, 从而影响系统的吞吐量。 发明内容
本发明的实施例提供一种半静态调度数据的传输方法及装置, 有效的 降低了半静态业务重传概率, 并提高了系统的吞吐量。
为达到上述目的, 本发明的实施例采用如下技术方案:
一种半静态调度数据的传输方法, 包括:
根据多载波中每个载波的信道状况信息以及多用户多输入多输出天线 单元配对的增益确定用于传输半静态调度数据的初传载波;
向用户指示所述确定的用于传输半静态调度数据的初传载波; 通过所述指示的用于传输半静态调度数据的初传载波向所述用户传输 所述半静态调度数据。
一种半静态调度数据的传输装置, 包括:
确定单元, 用于才艮据多载波中每个载波的信道状况信息以及多用户多 输入多输出天线单元配对的增益确定用于半静态调度数据的初传载波; 指示单元, 用于向用户指示所述确定单元确定的用于半静态调度数据 的初传载波;
传输单元, 用于通过所述指示单元指示的用于传输半静态调度数据的 初传载波向所述用户传输所述半静态数据。
一种半静态调度数据的传输方法, 包括:
用户设备接收基站发送的指示, 其中, 所述指示具体用于: 指示用于 传输半静态调度数据的初传载波, 所述初传载波为所述基站根据多载波中 每个载波的信道状况信息及多用户多输入多输出天线单元配对的增益确定 的;
所述用户设备通过所述初传载波从基站接收半静态调度数据。
一种用户设备, 包括:
收发单元, 用于接收基站发送的指示;
处理单元, 用于根据所述收发单元接收的指示确定所述基站用于传输 半静态调度数据的初传载波, 并指示所述接收单元通过所述初传载波从所 述基站接收半静态调度数据; 其中, 所述初传载波为所述基站根据多载波 中每个载波的信道状况信息及多用户多输入多输出天线单元配对的增益确 定的。
本发明实施例提供的半静态调度数据的传输方法及装置, 根据多载波 中每个载波的信道状况信息以及多用户多输入多输出天线单元配对的增益 确定用于传输半静态调度数据的初传载波, 并向用户指示所述确定的用于 传输半静态调度数据的传输载波, 进而通过所述指示单元指示的用于传输 半静态调度数据的初传载波向所述用户传输半静态数据; 与现有技术相比, 本发明实施例提供的技术方案中用于传输用户的半静态调度数据的初传载 波是根据多载波中每个载波的信道状况信息以及多用户多输入多输出天线 单元配对的增益确定的, 从而有效的提高了半静态调度数据传输的正确性, 进而降低了半静态调度数据重传的概率, 并且提高系统的吞吐量。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1为本发明实施例 1中半静态调度数据的传输方法的流程图; 图 2为本发明实施例 1中半静态调度数据的传输装置组成框图; 图 3为本发明实施例 1中半静态调度数据的传输方法的流程图; 图 4为本发明实施例 2 中半静态调度数据的传输方法中一种半静态调 度数据的反馈模式示意图;
图 5为本发明实施例 2 中半静态调度数据的传输方法中另一种静态调 度业务的反馈模式示意图;
图 6为本发明实施例 2中一种半静态调度数据的传输装置组成框图; 图 7为本发明实施例 2中一种半静态调度数据的传输装置组成框图; 图 8为本发明实施例 3中半静态调度数据的传输方法的流程图; 图 9为本发明实施例 3中用户设备的组成框图。 具体实施方式 下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进 行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没 有作出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的 范围。
实施例一
本发明实施例提供一种半静态调度数据的传输方法, 如图 1 所示, 该 方法包括:
101、 根据多载波中每个载波的信道状况信息以及多用户多输入多输出 天线单元配对的增益确定用于传输半静态调度数据的初传载波。
其中, 所述载波的信道状况由数据接收端反馈获得, 该载波的信道状 况信息包括三类: CQI/CSI (Channel Quality Indicator, 信道质量信息 / channel state informat ion, 信道状态信息)、 ( Rank indicator, 秩信息)、 PMI ( Precoding matrix index, 预编码矩阵信息)。 在多用户多输入多输 出的时候, 根据 CQI/CSI, RI和 PMI 的反馈信息, 通过一定的算法选择最 合适的用户配对,其配对原则包括如下两方面, 具体为: 第一, 如果是 VoIP 用户之间的配对, 以满足整体重传概率最低为原则; 第二, 如果是 VoIP用 户和其他非 VoIP用户配对时, 以满足两者丟包率的前提下, 最大化该时延 敏感业务的吞吐量为原则; 在根据上述原则确定了多用户多输入多输出天 线单元的配对后 , 根据所述选择的多用户多输入多输出天线单元配对的增 益确定所述用于传输半静态调度数据的初传载波。
102、 向用户指示所述确定的用于传输半静态调度数据的初传载波, 以 便用于在接收所述传输的半静态数据时, 仅需要侦听传输数据的载波便可 以接收到传输的半静态数据。
其中, 所述向所述用户指示所述确定的用于传输半静态调度数据的初 传载波具体可以包含以下两种方式: 第一种, 在所述多载波的每个载波上 添加物理层信道, 在所述物理层信道中设定 1 比特的指示位, 用以指示半 静态调度数据是否被调度到所述载波上传输; 第二种, 选取一个下行主载 波, 在所述选取的下行主载波上添加物理层信道, 并在所述物理层信道中 设置预定长度的指示位, 用于指示传输半静态调度数据的初传载波。
103、 通过所述指示的用于传输半静态调度数据的初传载波向所述用户 传输所述半静态调度数据。
本发明实施例提供一种半静态调度数据的传输装置, 如图 2 所示, 该 装置包括: 确定单元 21、 指示单元 22和传输单元 23。
确定单元 21, 用于根据多载波中每个载波的信道状况信息以及多用户 多输入多输出天线单元配对的增益确定用于半静态调度数据的初传载波; 在确定了用于传输所述半静态调度数据的初传载波后, 指示单元 22, 用于 向用户指示所述确定单元 21确定的用于传输半静态调度数据的初传载波; 传输单元 23,用于通过所述指示单元 22指示的用于传输半静态调度数据的 初传载波向所述用户传输所述半静态数据。
其中, 所述载波的信道状况由数据接收端反馈, 该载波的信道状况信 息包括三类: CQI/CSI (信道质量信息 /信道状态信息), RI (秩信息), PMI (预编码矩阵信息)。 在多用户多输入多输出的时候, 根据 CQI/CSI , RI和 PMI 的反馈信息, 通过一定的算法选择最合适的用户配对 , 其配对原则包 括如下两方面, 具体为: 第一, 如果是 VoIP用户之间的配对, 以满足整体 重传概率最低为原则; 第二, 如果是 VoIP用户和其他非 VoIP用户配对时, 以满足两者丢包率的前提下, 最大化该时延敏感业务的吞吐量为原则; 在 根据上述原则确定了多用户多输入多输出天线单元的配对后, 根据所述选 择的多用户多输入多输出天线单元配对的增益确定所述用于传输半静态调 度数据的初传载波。
其中, 所述指示单元 22向所述用户指示所述确定单元 21确定的用于 传输半静态调度数据的初传载波具体可以包含以下两种方式: 第一种, 在 所述多载波的每一个载波上添加物理层信道, 在所述物理层信道中设定 1 比特的指示位, 用以指示半静态调度数据是否被调度到所述载波上传输; 第二种, 选取一个下行主载波, 在所述选取的下行主载波上添加物理层信 道, 并在所述物理层信道中设置预定长度的指示位, 用于指示传输半静态 调度数据的初传载波。
本发明实施例中, 才艮据多载波中每个载波的信道状况信息以及多用户 多输入多输出天线单元配对的增益确定用于半静态调度数据初传的载波, 并向用户指示所述确定的用于传输半静态调度数据的传输载波, 进而通过 所述指示单元指示的用于传输半静态调度数据的初传载波向所述用户传输 半静态数据; 与现有技术相比, 本发明实施例提供的技术方案中用于传输 用户的半静态调度数据的初传载波是根据多载波中每个载波的信道状况信 息以及多用户多输入多输出天线单元配对的增益确定的, 从而有效的提高 了半静态调度数据传输的正确性, 进而降低了半静态调度数据重传的概率, 并且提高系统的吞吐量。
实施例二
本发明实施例提供一种半静态调度数据的传输方法, 如图 3 所示, 该 方法包括:
301、 根据多载波中每个载波的信道状况信息以及多用户多输入多输出 天线单元配对的增益确定用于传输半静态调度数据的初传载波。 其中, 所述载波的信道状况由数据接收端反馈, 该载波的信道状况信 息包括三类: CQI /CS I (信道质量信息 /信道状态信息), R I (秩信息), PMI (预编码矩阵信息)。 在多用户多输入多输出的时候, 根据 CQ I /CS I , RI和 PMI 的反馈信息, 通过一定的算法选择最合适的用户配对 , 其配对原则包 括如下两方面, 具体为: 第一, 如果是 Vo IP用户之间的配对, 以满足整体 重传概率最低为原则; 第二, 如果是 Vo IP用户和其他非 Vo IP用户配对时, 以满足两者丢包率的前提下, 最大化该时延敏感业务的吞吐量为原则; 在 根据上述原则确定了多用户多输入多输出天线单元的配对后, 根据所述选 择的多用户多输入多输出天线单元配对的增益确定所述用于传输半静态调 度数据的初传载波。
302、 向用户指示所述确定的用于传输半静态调度数据的初传载波, 以 便用于在接收所述传输的半静态数据时, 仅需要侦听传输数据的载波便可 以接收到传输的半静态数据。
其中, 所述向用户指示所述确定的用于传输半静态调度数据的初传载 波具体可以包含以下两种方式:
第一种, 在所述多载波的每个载波上添加物理层信道, 在所述物理层 信道中设定 1 比特的指示位, 用以指示半静态调度数据是否被调度到所述 载波上传输; 例如, 设定所述 1 比特的指示位为 1 时, 表示用户设备的半 静态调度数据被调度到该载波上传输, 设定所述 1 比特的指示位为 0时, 表示用户设备的半静态调度数据没有被调度到该载波上传输; 反之亦然, 本发明实施例对此不进行限制。
第二种, 选取一个下行主载波, 在所述选取的下行主载波上添加物理 层信道, 并在所述物理层信道中设置预定长度的指示位, 用于指示传输半 静态调度数据的初传载波, 所述预定长度的指示位可以根据实际需求设定, 例如 2 b i t ~ 3b i t。
303、 配置所述半静态调度数据传输的周期、 半静态调度数据传输的反 馈模式以及半静态调度数据传输时用到的载波资源的位置和大小。 可以采 用专用信令实现上述各参数的配置, 所述专用信令可以为但不局限于 RRC ( Radio Resource Cont rol , 无线资源控制)信令。
其中, 所述半静态调度数据传输的周期可以根据实际需求具体设置, 例如 20毫秒等。
其中, 所述半静态调度数据传输的反馈模式具体包括两种, 具体结合 图 4和图 5进行具体描述:
第一种, 如图 4 所示, 该种半静态调度数据传输的反馈模式具体为: 由与传输半静态调度数据的载波相配对的载波传输所述半静态调度数据初 传和重传的反馈信息,所述反馈信息包括 ACK/NACK,其中 ACK表示接收正确, 发送端不需要重传; NACK表示接收错误, 发送端需要重传; 后续 ACK/MCK 缩略为 Α/Ν; 其中 CC1和 CC1 ' 、 CC2和 CC2' 以及 CC3和 CC3' 是相互配对 的传输信道, 当使用 CC1 进行半静态调度数据的传输时, 用户设备便可以 在相应的配对传输信道 CC 1 ' 上进行解析 ,获取相应的接收端接收半静态调 度数据传输的反馈信息, 而不需要对传输协议进行具体的反馈信息载波的 设定。 该种信息反馈模式适合上行的 SPS业务传输例。 如在 LTE 系统中, 因为 LTE 系统的上行数据传输信道 PUSCH ( Phys i ca l Upl ink Shared Channe l , 物理上行共享信道)和下行的反馈信息的反馈信道 PHICH存在一 一对应的关系, 因此, 在进行上行 SPS 业务的传输时, 用户设备知道应该 在那个下行载波上进行 PHICH 的解码, 以确定数据传输的反馈信息, 不需 要对协议进行改动。
第二种, 如图 5 所示, 该种半静态调度数据传输的反馈模式具体为: 选取一个主反馈载波, 由所述选取的主反馈载波传输所有半静态调度数据 初传和重传的反馈信息。 其中 CC1' 为选取的主反馈载波, CC1、 CC2 以及 CC3的初传和重传的反馈信息都由所述选取的主反馈载波 CC1' 反馈。 对于 下行传输而言, 由于非对称载波聚合, 即一个上行对多个下行的存在, 该 种半静态调度数据的反馈模式适合下行传输的增强型反馈, 在主载波上的
PUCCH ( Phys i ca l Upl ink Cont rol Channe l , 物理上行控制信道) 的反馈 资源可以预先分配给执行下行 SPS业务传输的 UE, 并需要有效地对 CC1的 PDSCH ( Phys i ca l Downl ink Shared Channe l , 物理下行共享信道)传输和 CC2、 CC3的 SPS业务传输的 A/N反馈执行沖突避免。
进一步, 如果对于下行 SPS数据的传输使用第一种反馈模式, 则需要 通过 RRC专用信令在各个载波上对 A/N根据 SPS数据传输的周期及相应预 分配资源进行 A/N的资源配置。 当某些预配的 PUCCH资源不被使用到的时 候, 可以另作它用。
304、 通过所述指示的用于传输半静态调度数据的初传载波向所述用户 传输所述半静态调度数据。
305、 接收用户返回的半静态调度数据传输的反馈信息, 所述反馈信息 包括正确接收或者接收错误需要重传; 若接收到的所述反馈信息为正确接 收, 则执行步骤 307 ; 若接收到的所述反馈信息为接收错误需要重传时, 执 行步骤 306。 值得注意的是, 步骤 307 和 306可以不同时执行, 即当执行 306时, 307可以不执行; 执行 307时, 306可以不执行。
306、 通过所述传输半静态调度数据的初传载波重传所述半静态调度数 据, 以便使接收端能够正确的接收发送端传输的所述半静态调度数据; 在 通过所述初传载波重传所述半静态调度数据后, 执行步骤 305, 以便确定接 收端正确的接收到所述半静态调度数据。
307、 结束该次半静态调度数据的传输。
本发明实施例提供一种半静态调度数据的传输装置, 如图 6 所示, 该 装置包括: 确定单元 41、 指示单元 42、 配置单元 43、 传输单元 44、 接收 单元 45和重传单元 46。
确定单元 41, 用于根据多载波中每个载波的信道状况信息以及多用户 多输入多输出天线单元配对的增益确定用于传输半静态调度数据的初传载 波; 其中, 所述载波的信道状况由数据接收端反馈, 该载波的信道状况信 息包括三类: CQI/CSI (信道质量信息 /信道状态信息), RI (秩信息), PMI (预编码矩阵信息)。 在多用户多输入多输出的时候, 根据 CQI/CSI , RI和 PMI 的反馈信息, 通过一定的算法选择最合适的用户配对 , 其配对原则包 括如下两方面, 具体为: 第一, 如果是 VoIP用户之间的配对, 以满足整体 重传概率最低为原则; 第二, 如果是 VoIP用户和其他非 VoIP用户配对时, 以满足两者丢包率的前提下, 最大化该时延敏感业务的吞吐量为原则; 在 根据上述原则确定了多用户多输入多输出天线单元的配对后, 根据所述选 择的多用户多输入多输出天线单元配对的增益确定所述用于传输半静态调 度数据的初传载波。
在确定了用于传输半静态调度数据的初传载波后, 指示单元 42, 用于 向用户指示所述确定单元 41确定的用于传输半静态调度数据的初传载波; 配置单元 43, 用于配置所述半静态调度数据传输的周期、 半静态调度数据 传输的反馈模式以及半静态调度数据传输时用到的载波资源的位置和大 小; 传输单元 44 , 用于根据所述配置单元 43配置的半静态调度数据传输的 参数, 并通过所述指示单元 42指示的用于传输半静态调度数据的初传载波 向所述用户传输所述半静态数据。 其中, 所述半静态调度数据反馈模式包 括: 由与传输半静态调度数据的载波相配对的载波传输所述半静态调度数 据初传和重传的反馈信息; 或者选取一个主反馈载波, 由所述主反馈载波 传输所有半静态调度数据初传和重传的反馈信息。
在所述传输单元 44通过所述指示单元 42指示的用于传输半静态调度 数据的初传载波向所述用户传输半静态数据后, 接收单元 45用于接收用户 返回的半静态调度数据传输的反馈信息, 所述反馈信息包括正确接收或者 接收错误需要重传; 当所述接收单元 45接收到的用户返回的半静态调度数 据传输的反馈信息为接收错误需要重传时, 重传单元 46用于通过所述传输 单元 44传输半静态调度数据的初传载波重传所述半静态调度数据, 以便接 收端能够正确的接收所述传输的半静态调度数据。
其中, 所述指示单元 42包括: 第一添加模块 421和第一设置模块 422。 在所述指示单元 42向所述用户指示所述确定单元 41确定的用于传输 半静态调度数据的初传载波时, 首先通过第一添加模块 421 在所述多载波 的每个载波上添加物理层信道; 在所述多载波的每个载波上添加物理层信 道后, 第一设置模块 422, 用于在所述添加模块 421添加的物理层信道中设 定 1 比特的指示位, 用以指示半静态调度数据是否被调度到所述载波上传 输。
向所述用户指示所述确定单元 41确定的用于传输半静态调度数据的初 传载波除了上述实施方法外, 还可以釆用以下的实施例方法如图 7 示: 所 述指示单元 42包括:选取模块 423、第二添加模块 424和第二设置模块 425。
在所述指示单元 42向所述用户指示所述确定单元 41确定的用于传输 半静态调度数据的初传载波时, 首先通过选取模块 423 选取一个下行主载 波; 在选取了所述下行主载波后, 第二添加模块 424, 用于在所述选取模块 423选取的下行主载波上添加物理层信道; 第二设置模块 425, 用于在所述 第二添加模块 424 添加的物理层信道中设置预定长度的指示位, 用于指示 传输半静态调度数据的初传载波。
本发明实施例中, 才艮据多载波中每个载波的信道状况信息以及多用户 多输入多输出天线单元配对的增益确定用于传输半静态调度数据的初传载 波, 并向用户指示所述确定的用于传输半静态调度数据的传输载波, 进而 通过所述指示单元指示的用于传输半静态调度数据的初传载波向所述用户 传输半静态数据; 与现有技术中相比, 本发明实施例提供的技术方案中用 于传输用户的半静态调度数据的初传载波是根据多载波中每个载波的信道 状况信息以及多用户多输入多输出天线单元配对的增益确定的, 从而有效 的提高了半静态调度数据传输的正确性, 进而降低了半静态调度数据重传 的概率, 并且提高系统的吞吐量。 并且, 本发明实施例中, 当接收到接收端反馈回的反馈信息为接收错 误需要重传时, 通过初传所述半静态调度数据的载波重传所述半静态调度 数据, 使得同一个半静态调度数据的初传和重传在同一个载波上进行, 并 且由于不同半静态调度数据的初传可以在不同的载波上进行, 从而避免了 业务初传和重传的沖突。
实施例三
本发明实施例还提供一种半静态调度数据的传输方法, 该方法与实施 例一所提供的基站侧的方法相对应, 能够实现实施例一中用户设备与基站 的交互流程, 如图 8所示, 该方法包括:
801、 用户设备接收基站发送的指示, 其中, 所述指示具体用于: 指示 用于传输半静态调度数据的初传载波, 所述用于传输半静态调度数据的初 传载波为所述基站根据多载波中每个载波的信道状况信息及多用户多输入 多输出天线单元配对的增益确定的;
其中, 基站发送的指示可以为: 基站在多载波的每个载波上的物理层 信道中设定的 1 比特指示位, 该指示位用以指示半静态调度数据是否被调 度到所述载波上传输; 或者为: 基站在选取的下行主载波上添加的物理层 信道中设置的预定长度的指示位, 该指示位用于指示所述传输半静态调度 数据的初传载波。
802、 所述用户设备通过上述初传载波从基站接收半静态调度数据。 在步骤 802 后, 还可以包括: 向基站返回半静态调度数据传输的反馈 信息, 该反馈信息包括正确接收或者接收错误需要重传。 当该反馈信息为 接收错误需要重传时, 该方法还可以包括: 接收基站通过上述初传载波重 传的所述半静态调度数据。 本发明实施例还提供一种用户设备, 能够实现上述用户设备侧的方法, 如图 9所示, 该用户设备包括: 收发单元 91和处理单元 92。 收发单元 91 , 用于接收基站发送的指示;
处理单元 92,用于根据收发单元 91接收的指示确定所述基站用于传输 半静态调度数据的初传载波, 并指示所述接收单元 91通过所述初传载波从 所述基站接收所述半静态调度数据; 其中, 所述用于传输半静态调度数据 的初传载波为所述基站才艮据多载波中每个载波的信道状况信息及多用户多 输入多输出天线单元配对的增益确定的。
在收发单元 91通过上述初传载波从基站接收半静态调度数据后, 收发 单元 91还可以用于: 向基站返回所述半静态调度数据传输的反馈信息, 该 反馈信息包括正确接收或者接收错误需要重传。 如果收发单元 91的反馈信 息为接收错误需要重传, 则收发单元 91还可以用于: 接收所述基站通过上 述初传载波重传的半静态调度数据。
本实施例提供的技术方案中用于传输用户的半静态调度数据的初传载 波是基站根据多载波中每个载波的信道状况信息以及多用户多输入多输出 天线单元配对的增益确定的, 从而有效的提高了半静态调度数据传输的正 确性, 进而降低了半静态调度数据重传的概率, 并且提高系统的吞吐量。
通过以上的实施方式的描述, 所属领域的技术人员可以清楚地了解到 本发明可借助软件加必需的通用硬件的方式来实现, 当然也可以通过硬件, 但很多情况下前者是更佳的实施方式。 基于这样的理解, 本发明的技术方 案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出 来, 该计算机软件产品存储在可读取的存储介质中, 如计算机的软盘, 硬 盘或光盘等, 包括若千指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述的方法。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻 易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的 保护范围应以所述权利要求的保护范围为准。

Claims

权利要求
1、 一种半静态调度数据的传输方法, 其特征在于, 包括:
根据多载波中每个载波的信道状况信息及多用户多输入多输出天线单 元配对的增益确定用于传输半静态调度数据的初传载波;
向用户指示所述确定的用于传输半静态调度数据的初传载波; 通过所述指示的用于传输半静态调度数据的初传载波向所述用户传输 所述半静态调度数据。
2、 根据权利要求 1所述的方法, 其特征在于, 所述根据多载波中每个 载波的信道状况信息及多用户多输入多输出天线单元配对的增益确定用于 传输半静态调度数据的初传载波, 包括:
根据所述多载波中每个载波的秩信息、 预编码矩阵信息、 信道质量信 息或信道状态信息, 选择所述多用户多输入多输出天线单元的配对;
根据所述选择的多用户多输入多输出天线单元配对的增益确定所述用 于传输半静态调度数据的初传载波。
3、 根据权利要求 1所述的方法, 其特征在于, 所述向用户指示所述确 定的用于传输半静态调度数据的初传载波, 包括:
在所述多载波的每个载波上添加物理层信道, 在所述物理层信道中设 定 1 比特的指示位, 用以指示半静态调度数据是否被调度到所述载波上传 输;
或者, 选取一个下行主载波, 在所述选取的下行主载波上添加物理层 信道, 并在所述物理层信道中设置预定长度的指示位, 用于指示所述传输 半静态调度数据的初传载波。
4、 根据权利要求 1所述的传输方法, 其特征在于, 在通过所述指示的 用于传输半静态调度数据的初传载波向所述用户传输所述半静态调度数据 之前, 还包括: 配置半静态调度数据传输的反馈模式;
其中, 所述半静态调度数据传输的反馈模式, 具体包括:
由与传输半静态调度数据的载波相配对的载波传输所述半静态调度数 据初传和重传的反馈信息; 或者
选取一个主反馈载波, 由所述选取的主反馈载波传输所有半静态调度 数据初传和重传的反馈信息。
5、 根据权利要求 1所述的传输方法, 其特征在于, 通过所述指示的用 于传输半静态调度数据的初传载波向所述用户传输所述半静态调度数据之 后, 还包括:
接收所述用户返回的所述半静态调度数据传输的反馈信息, 所述反馈 信息包括正确接收或者接收错误需要重传。
6、 根据权利要求 5所述的传输方法, 其特征在于, 当所述反馈信息为 接收错误需要重传时, 还包括:
通过所述传输半静态调度数据的初传载波重传所述半静态调度数据。
7、 一种半静态调度数据的传输装置, 其特征在于, 包括:
确定单元, 用于根据多载波中每个载波的信道状况信息以及多用户多 输入多输出天线单元配对的增益确定用于传输半静态调度数据的初传载 波;
指示单元, 用于向用户指示所述确定单元确定的用于传输半静态调度 数据的初传载波;
传输单元, 用于通过所述指示单元指示的用于传输半静态调度数据的 初传载波向所述用户传输所述半静态数据。
8、 根据权利要求 7所述的装置, 其特征在于, 所述指示单元包括: 第一添加模块, 用于在所述多载波的每个载波上添加物理层信道; 第一设置模块, 用于在所述添加模块添加的物理层信道中设定 1 比特 的指示位, 用以指示半静态调度数据是否被调度到所述载波上传输。
9、 根据权利要求 7所述的装置, 其特征在于, 所述指示单元包括: 选取模块, 用于选取一个下行主载波;
第二添加模块, 用于在所述选取模块选取的下行主载波上添加物理层 信道;
第二设置模块, 用于在所述第二添加模块添加的物理层信道中设置预 定长度的指示位, 用于指示传输半静态调度数据的初传载波。
10、 根据权利要求 7所述的装置, 其特征在于, 还包括:
配置单元, 用于在所述传输单元通过所述指示单元指示的用于传输半 静态调度数据的初传载波向所述用户传输所述半静态调度数据之前, 配置 所述半静态调度数据传输的周期、 半静态调度数据传输的反馈模式以及半 静态调度数据传输时用到的载波资源的位置和大小。
11、 根据权利要求 7所述的传输装置, 其特征在于, 还包括: 接收单元, 用于在所述传输单元通过所述指示单元指示的用于传输半 静态调度数据的初传载波向所述用户传输所述半静态调度数据之后, 接收 所述用户返回的所述半静态调度数据传输的反馈信息, 所述反馈信息包括 正确接收或者接收错误需要重传。
12、 根据权利要求 11所述的装置, 其特征在于, 还包括:
重传单元, 用于在所述接收单元接收到的反馈信息为接收错误需要重 传时, 通过所述传输单元传输半静态调度数据的初传载波重传所述半静态 调度数据。
13、 一种半静态调度数据的传输方法, 其特征在于, 包括: 用户设备接收基站发送的指示, 其中, 所述指示具体用于: 指示用于 传输半静态调度数据的初传载波, 所述初传载波为所述基站根据多载波中 每个载波的信道状况信息及多用户多输入多输出天线单元配对的增益确定 的;
所述用户设备通过所述初传载波从所述基站接收半静态调度数据。
14、 根据权利要求 13所述的方法, 其特征在于, 所述基站发送的指示 具体包括:
所述基站在所述多载波的每个载波上的物理层信道中设定的 1 比特指 示位, 所述指示位用以指示半静态调度数据是否被调度到所述载波上传输; 或者
所述基站在选取的下行主载波上添加的物理层信道中设置的预定长度 的指示位, 所述指示位用于指示所述传输半静态调度数据的初传载波。
15、 根据权利要求 13所述的方法, 其特征在于, 所述通过所述初传载 波从所述基站接收半静态调度数据后, 进一步包括:
向所述基站返回所述半静态调度数据传输的反馈信息, 所述反馈信息 包括正确接收或者接收错误需要重传。
16、 根据权利要求 15所述的方法, 其特征在于, 当所述反馈信息为接 收错误需要重传时, 还包括:
所述用户设备接收所述基站通过所述初传载波重传的所述半静态调度 数据。
17、 一种用户设备, 其特征在于, 包括:
收发单元, 用于接收基站发送的指示;
处理单元, 用于根据所述收发单元接收的指示确定所述基站用于传输 半静态调度数据的初传载波, 并指示所述接收单元通过所述初传载波从所 述基站接收半静态调度数据; 其中, 所述初传载波为所述基站根据多载波 中每个载波的信道状况信息及多用户多输入多输出天线单元配对的增益确 定的。
18、 根据权利要求 17所述的用户设备, 其特征在于, 所述收发单元通 过所述初传载波从所述基站接收半静态调度数据后, 所述收发单元还用于, 向所述基站返回所述半静态调度数据传输的反馈信息, 所述反馈信息 包括正确接收或者接收错误需要重传。
19、 根据权利要求 18所述的用户设备, 其特征在于, 如果所述收发单 元的反馈信息为接收错误需要重传, 则所述收发单元还用于:
接收所述基站通过所述初传载波重传的所述半静态调度数据。
PCT/CN2010/078603 2009-11-10 2010-11-10 半静态调度数据的传输方法及装置 WO2011057566A1 (zh)

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AU2010317260A1 (en) 2012-03-08
US20120147838A1 (en) 2012-06-14
BR112012011063A2 (pt) 2020-09-15
EP2451233A4 (en) 2012-10-17
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CN102055570A (zh) 2011-05-11
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