WO2011000290A1 - Procede pour indiquer la configuration de canaux, procede et dispositif pour recevoir des donnees - Google Patents

Procede pour indiquer la configuration de canaux, procede et dispositif pour recevoir des donnees Download PDF

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Publication number
WO2011000290A1
WO2011000290A1 PCT/CN2010/074556 CN2010074556W WO2011000290A1 WO 2011000290 A1 WO2011000290 A1 WO 2011000290A1 CN 2010074556 W CN2010074556 W CN 2010074556W WO 2011000290 A1 WO2011000290 A1 WO 2011000290A1
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WO
WIPO (PCT)
Prior art keywords
channel
subframe
indication information
configuration
special subframe
Prior art date
Application number
PCT/CN2010/074556
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English (en)
Chinese (zh)
Inventor
闫志宇
赵亚军
任晓涛
程型清
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2011000290A1 publication Critical patent/WO2011000290A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • FIG. 1 shows a topology architecture of a coordinated multipoint communication system, in which an access point 1, an access point 2, and an access point 3 provide services for user equipment 1; Access point 5 and access point 6 provide services for user equipment 2; access point 5, access point 7 and access point 9 provide services for user equipment 3; access point 7, access point 8 and access point 9 provides services for the user equipment 4.
  • Access point 1, access point 2 and access point 3 belong to base station 1; access point 4, access point 5 and access point 6 belong to base station 2; access point 7, access point 8 and access Point 9 is attributed to base station 3.
  • a radio frame can be used.
  • multiple subframes for example, 10
  • Downstream data In the Long Term Evolution (LTE) system, a radio frame can be used.
  • LTE Long Term Evolution
  • the embodiment of the present invention provides the following technical solutions:
  • a method of receiving data including:
  • the second physical control channel format of the special subframe indicates that the channel occupies the first channel or the second channel of the special subframe a specific resource on one or more orthogonal frequency division multiplexing symbols
  • the first channel of the special subframe corresponds to a physical downlink control channel of a normal subframe
  • the special subframe is configured with a second channel, where The normal subframe is not provided with the second channel.
  • a method of receiving data including:
  • Receiving a current subframe when determining that the current subframe is a special subframe, indicating, according to a second physical control channel format of the special subframe, configuration indication information of a second channel carried by the channel, and receiving the special subframe Physical downlink shared channel data, where the second channel is a dedicated channel of a user who accepts the coordinated multipoint transmission service or a user of the advanced long term evolution planning system, and the configuration indication information is used to indicate the second channel.
  • a first generation module configured to generate configuration indication information of the second channel, where the second channel is a dedicated channel of a user who accepts the coordinated multipoint transmission service or a user of the advanced long term evolution planning system, where the configuration indication information is used by
  • the frequency module is configured to: the scheduling module is configured to schedule the configuration indication information into a current subframe, and the sending module is configured to send the subframe.
  • An access network device including:
  • a generating module configured to generate configuration indication information of the second channel, where the second channel is a dedicated channel of a user who accepts the coordinated multipoint transmission service or a user of the advanced long term evolution planning system, where the configuration indication information is used to indicate a time domain and/or a frequency domain configuration of the second channel; a sending module, configured to carry the configuration indication information in a high layer control signaling for sending.
  • a receiving device includes:
  • a sub-frame receiving module configured to receive a current sub-frame
  • a determining module configured to determine that the current sub-frame received by the sub-frame receiving module is a special sub-frame
  • a first receiving module configured to determine, by the determining module,
  • the second physical channel format of the special subframe indicates the configuration indication information of the second channel carried by the channel, and receives the second channel of the special subframe.
  • a sub-frame receiving module configured to receive a current sub-frame
  • a determining module configured to determine that the current sub-frame received by the sub-frame receiving module is a special sub-frame
  • a first receiving module configured to determine, by the determining module,
  • the second physical control channel format of the special subframe indicates the configuration indication information of the second channel carried by the channel, and receives the physical downlink sharing of the special subframe.
  • the second channel is a dedicated channel of a user accepting a coordinated multipoint transmission service or a user of an advanced long term evolution planning system
  • the configuration indication information is used to indicate a time domain of the second channel Or a frequency domain configuration
  • the second physical control channel format of the special subframe indicates that the channel occupies one or more orthogonal frequency division multiplexing symbols of the first channel or the second channel of the special subframe a specific channel
  • the first channel of the special subframe corresponds to a physical downlink control channel of a normal subframe
  • the special subframe is configured with a second channel, where Normal subframe is not provided with a second channel.
  • FIG. 1 is a schematic diagram of a topology structure of a coordinated multipoint communication system provided by the prior art
  • 2 is a flowchart of a method for indicating a channel configuration according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for indicating a channel configuration according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of Embodiment 1 of the present invention
  • FIG. 4 is a schematic structural diagram of a normal subframe according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic diagram of another normal subframe according to Embodiment 2 of the present invention
  • Schematic is
  • FIG. 5 is a schematic structural diagram of another special subframe according to Embodiment 1 of the present invention.
  • FIG. 5-d is a schematic structural diagram of another special subframe according to Embodiment 1 of the present invention.
  • FIG. 5-e is a schematic structural diagram of another special subframe according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural diagram of another special subframe according to Embodiment 1 of the present invention
  • FIG. 6 is a flowchart of a method for indicating a channel configuration according to Embodiment 2 of the present invention
  • FIG. 7 is a third embodiment of the present invention
  • a flowchart of a method for indicating a channel configuration is provided.
  • FIG. 8 is a flowchart of a method for receiving data according to Embodiment 4 of the present invention;
  • FIG. 9 is a flowchart of a method for receiving data according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic structural diagram of an access network device according to Embodiment 6 of the present invention
  • FIG. 11 is a schematic structural diagram of an access network device according to Embodiment 7 of the present invention
  • a schematic structural diagram of a receiving device
  • FIG. 13 is a schematic structural diagram of a receiving device according to Embodiment 9 of the present invention.
  • the content and format of the configuration indication information of the second channel may be any content and format that can be recognized by the receiving device, which is not limited in the embodiment of the present invention.
  • only the configuration indication information of the second channel of the special subframe may be generated and scheduled into a special subframe.
  • the configuration indication of the second channel may also be generated corresponding to the special subframe and the normal subframe respectively.
  • the information of the second channel of the normal subframe is configured to indicate that the time domain and/or the frequency domain of the second channel of the normal subframe is configured as zero.
  • the foregoing solution may be specifically implemented on an access network device of a communication system, where the access network device may be a base station, a base station controller, an access point, or another device having equivalent or similar functions in the communication system.
  • the above-mentioned receiving device may be a UE, a relay station (RS, a relay station) or other device having an equivalent or similar function, which is not limited in the embodiment of the present invention.
  • the network side indicates the time-frequency configuration of the CoMP user-dedicated channel, so that the receiving device can learn the time-frequency configuration of the CoMP user-dedicated channel, which is beneficial for the receiving device to accurately receive the CoMP user-dedicated channel or other channel.
  • the base station generates configuration indication information of the second channel.
  • the base station generates configuration indication information indicating the time-frequency width of the channel A as an example for specific description. It can be understood that the content and format of the configuration indication information of the channel A generated by the base station may be any content and format that the user equipment can recognize.
  • the base station can also generate the configuration indication information of the channel B according to the time-frequency configuration of the channel B.
  • the channel B configuration indication information generated by the base station is mainly used to indicate the time domain width and/or the frequency domain width of the channel B.
  • the correspondence between the configuration indication information of the channel A generated by the base station and the time-frequency configuration of the channel A indicated by the base station may be as shown in Table 1, but is not limited thereto:
  • the base station can use two bits of configuration indication information to indicate four different time-frequency configurations of channel A, respectively.
  • the configuration indication information is 01
  • the frequency domain width of the channel A is configured to be a frequency band of 1/3 of the subframe
  • the configured time domain width is 2 OFDM symbols of the subframe.
  • the base station may perform channel coding processing on the generated configuration indication information of the channel B, and schedule allocation instruction information of the channel B after channel coding into the first PCFICH of the special subframe.
  • the resource start position of the REG of the first OFDM symbol in which the second PCFICH occupies the channel B may be as follows, but is not limited thereto:
  • the resource start position of the second REG is K ( /2). /2
  • WiS denotes a physical layer cell identification
  • ⁇ ⁇ denotes the number of sub-carriers of resource blocks
  • resource blocks indicates the number of downlink bandwidth
  • the first PCFICH still occupies 4 fixed REGs of the 1st OFDM symbol where the channel B is located, and the second PCFICH occupies
  • the resources may be relatively evenly dispersed at a specific location on the plurality of OFDM symbols on which the channel B is located, so that the receiving device obtains the diversity reception gain of the time and frequency of the information carried by the second PCFICH.
  • the base station may also schedule control information or other information to be sent to channel A of the special subframe.
  • the service data or other data to be transmitted is scheduled to the PDSCH of the special subframe.
  • the UE receives and demodulates data carried by the second channel and/or the PDSCH according to the configuration indication information of the second channel carried in the high layer control signaling.
  • the base station is used as the access network device for performing the configuration indication
  • the UE is used as the receiving device as an example.
  • the access network device that performs the configuration indication may also be the base station controller and the access point. Or other devices having equivalent or similar functions in the communication system, etc., the receiving device may also be a relay station or other device having equivalent or similar functions, which is not limited herein.
  • the structure of a normal subframe may be as shown in FIG. 4-b and FIG. 4-c, but is not limited thereto.
  • the base station configures the first PCFICH of the normal subframe to occupy the specific resource on the first OFDM symbol where the PDCCH is located, and the second PCFICH also occupies the first PDCCH.
  • the access network device generates configuration indication information of the second channel corresponding to the normal subframe and the special subframe, respectively. If the current subframe is a normal subframe, the configuration indication information of the second channel indicates the current subframe. The second channel time domain and/or frequency domain configuration is equal to zero; if the current subframe is a special subframe, the configuration indication information of the second channel indicates that the second channel time domain and frequency domain configuration of the current subframe is greater than zero.
  • the manner in which the receiving device determines that the current subframe is a special subframe or a normal subframe may be the same as that described in Embodiment 4, and details are not described herein again.
  • an access network device 1000 may include: a first generating module 1010, a scheduling module 1020, and a sending module 1030.
  • the scheduling module 1020 can include:
  • a second scheduling submodule configured to schedule the foregoing configuration indication information and the cyclic error detection coding to the second physical control channel format indication channel of the special subframe when the current subframe is a special subframe.
  • the second scheduling sub-module may perform channel coding on the foregoing configuration indication information and the cyclic error coding schedule, and then schedule the channel to the second physical control channel format indication channel of the special subframe.
  • the access network device 1000 may be a base station, a base station controller, an access point, or another device having similar functions in the communication system, and the like, which is not limited by the present invention.
  • the access network device in this embodiment may be a base station in the foregoing method embodiment, and the functions of the respective functional modules may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may be referred to The related description of the foregoing method embodiments is not described herein again.
  • the access network indicates the time-frequency configuration of the CoMP user-dedicated channel, so that the receiving device can learn the time-frequency configuration of the CoMP user-dedicated channel, which is beneficial for the receiving device to accurately receive the CoMP user-dedicated channel and/or Or data carried by other channels.
  • an access network device is further provided in the embodiment of the present invention.
  • the sending module 1120 is configured to carry the configuration indication information generated by the generating module 1110 in the high layer control signaling for sending.
  • the generating module 1110 may generate the configuration of the second channel when the time domain and/or the frequency domain configuration of the second channel changes.
  • the indication information, the sending module 1120 can use the normal subframe or the special subframe to carry the high layer control signaling carrying the configuration indication information of the second channel.
  • the receiving device can learn the time-frequency configuration of the second channel according to the configuration indication information of the second channel carried by the high-level control signaling, and further receive the data of the second channel or other channel.
  • the access network indicates the time-frequency configuration of the CoMP user-dedicated channel, so that the receiving device can learn the time-frequency configuration of the CoMP user-dedicated channel, which is beneficial for the receiving device to accurately receive the CoMP user-dedicated channel and/or Or data carried by other channels.
  • a receiving device is further provided in the embodiment of the present invention.
  • the determining module 1220 is configured to determine that the current subframe received by the subframe receiving module 1210 is a special subframe.
  • the first receiving module 1230 is configured to, when the determining module 1220 determines that the current subframe received by the subframe receiving module 1210 is a special subframe, indicate, according to the second physical control channel format of the special subframe, the second channel carried by the channel.
  • the configuration indication information is used to receive information carried by the second channel of the special subframe.
  • the second channel is a dedicated channel of a user receiving the coordinated multipoint transmission service or a user of the advanced long term evolution planning system, and the configuration indication information is used to indicate a time domain and/or a frequency domain configuration of the second channel, where the special
  • the second physical control channel format of the subframe indicates that the channel occupies a specific resource on one or more orthogonal frequency division multiplexing symbols where the first channel or the second channel of the special subframe is located, and the first of the special subframes
  • the channel corresponds to a physical downlink control channel of a normal subframe, the special subframe is configured with a second channel, and the normal subframe is not provided with a second channel.
  • the determining module 1220 is further configured to determine that the current subframe received by the subframe receiving module 1210 is a normal subframe.
  • a second receiving module configured to: when the determining module determines that the current subframe received by the subframe receiving module 1210 is a normal subframe, receiving the normal subframe according to the control information of the physical downlink control channel of the normal subframe The data carried by the physical downlink shared channel.
  • a first demodulation submodule configured to demodulate a second physical control channel format indication channel of the current subframe, and obtain configuration indication information of the second channel carried by the second physical control channel format indication channel.
  • a first determining submodule configured to: when the configuration indication information indicates that the time domain and the frequency domain configuration of the second channel of the current subframe are greater than zero, determine that the current subframe is a special subframe; and the configuration indication information indicates the current sub When the time domain and/or frequency domain configuration of the second channel of the frame is equal to zero, it is determined that the current subframe is a normal subframe.
  • the access network device only generates the second channel corresponding to the special subframe.
  • the indication information is set, and the cyclic error detection coding of the configuration indication information is generated, and the configuration indication information of the second channel and the cyclic error detection coding are scheduled to the second PCFICH of the special subframe.
  • the determining module 1220 may include: a second demodulation submodule and a second determination submodule.
  • the determining module 1220 may determine whether the current subframe is a special subframe or a normal subframe by pre-determining or receiving a notification with the access network device.
  • the receiving device 1200 in this embodiment may be a CoMP UE, an LTE-A non CoMP UE, a relay station, or another device that can receive a subframe in the foregoing method embodiments, and the functions of the respective functional modules may be according to the foregoing.
  • the method in the method embodiment is specifically implemented. For the specific implementation process, reference may be made to the related description in the foregoing method embodiments, and details are not described herein again.
  • a receiving device 1300 may include: a sub-frame receiving module 1310, a determining module 1320, and a first receiving module 1330.
  • the second channel is a dedicated channel of a user who accepts the coordinated multipoint transmission service or a user of the advanced long term evolution planning system, and the configuration indication information is used to indicate the second channel.
  • the second physical control channel format of the special subframe indicates that the channel occupies one or more orthogonal frequency division multiplexing symbols of the first channel or the second channel of the special subframe.
  • the specific channel, the first channel of the special subframe corresponds to the physical downlink control channel of the normal subframe, the special subframe is configured with the second channel, and the normal subframe is not provided with the second channel.
  • the determining module 1320 is further configured to determine that the current subframe received by the subframe receiving module 1310 is a normal subframe.
  • the determining module 1320 may include: a first demodulation submodule and a first determining submodule.
  • a first demodulation submodule configured to demodulate a second physical control channel format indication channel of the current subframe, and obtain configuration indication information of the second channel carried by the second physical control channel format indication channel.
  • the determining module 1320 may include:
  • a second demodulation submodule configured to demodulate a resource in a current subframe corresponding to a specific location of the second physical control channel format indication channel, and obtain data carried by the resource at the specific location.
  • the access network indicates the time-frequency configuration of the CoMP user-dedicated channel
  • the receiving device can learn the time-frequency configuration of the CoMP user-dedicated channel, thereby accurately receiving the CoMP user-dedicated channel and/or other channels.
  • the program can be stored in a computer readable storage medium.
  • the storage medium can include: Read-only memory, random access memory, disk or optical disk, etc.

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

Abstract

L'invention concerne, dans un mode de réalisation. un procédé permettant d'indiquer la configuration d'un canal, un procédé et un dispositif de réception de données. Le procédé d'indication de la configuration d'un canal consiste: à générer des informations d'indication de configuration d'un second canal, le second canal étant un canal spécialisé pour les utilisateurs acceptant des services de transmission et réception multipoint coordonnées de liaison montante (CoMP) ou des utilisateurs du système avancé d'évolution à long terme (LTE), et les informations d'indication de configuration sont utilisées pour indiquer la configuration du second canal dans un domaine temporel et/ou un domaine de fréquences; à distribuer les informations d'indication de configuration dans une sous-trame courante; et à émettre la sous-trame. Dans le mode de réalisation de l'invention, le côté réseau indique la configuration temps-fréquence d'un canal spécialisé pour les utilisateurs acceptant les services CoMP, et permet à un dispositif récepteur d'être informé de la configuration temps-fréquence du canal spécialisé, ce qui est avantageux pour le dispositif récepteur qui reçoit exactement les données transportées sur la canal spécialisé ou sur d'autres canaux.
PCT/CN2010/074556 2009-06-30 2010-06-26 Procede pour indiquer la configuration de canaux, procede et dispositif pour recevoir des donnees WO2011000290A1 (fr)

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CN200910150054.5A CN101938748B (zh) 2009-06-30 2009-06-30 指示信道配置的方法和接收数据的方法及设备
CN200910150054.5 2009-06-30

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WO2016187854A1 (fr) * 2015-05-27 2016-12-01 华为技术有限公司 Procédé de communication , point d'accès, et station
CN108024344B (zh) * 2016-11-04 2022-11-25 中兴通讯股份有限公司 一种传输配置信息获取方法和装置
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