WO2013120408A1 - Procédé de transmission et de détection d'une signalisation de commande, dispositif de réseau et équipement d'utilisateur - Google Patents

Procédé de transmission et de détection d'une signalisation de commande, dispositif de réseau et équipement d'utilisateur Download PDF

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Publication number
WO2013120408A1
WO2013120408A1 PCT/CN2013/070889 CN2013070889W WO2013120408A1 WO 2013120408 A1 WO2013120408 A1 WO 2013120408A1 CN 2013070889 W CN2013070889 W CN 2013070889W WO 2013120408 A1 WO2013120408 A1 WO 2013120408A1
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WIPO (PCT)
Prior art keywords
subcarrier
antenna port
control signaling
transmitting
group
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PCT/CN2013/070889
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English (en)
Chinese (zh)
Inventor
周明宇
高驰
夏亮
Original Assignee
华为技术有限公司
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Publication of WO2013120408A1 publication Critical patent/WO2013120408A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a network device, and a user equipment for transmitting and detecting control signaling in the communication field. Background technique
  • a base station In a communication system, a base station (“BS” is called a “BS”).
  • BS User Equipment
  • UE User Equipment
  • the base station usually determines an appropriate scheduling scheme according to the channel change, and sends the information including the scheduling scheme to the user equipment by using control signaling, where the scheduling scheme usually includes a modulation mode, a coding rate, and the like, and the scheduling scheme may further include spatial transmission.
  • the scheme and/or the power control scheme and the like; the user equipment can perform corresponding transmission or reception according to the control signaling.
  • These scheduling schemes are determined in real time based on channel conditions, so that the most suitable transmission scheme can be selected for the user equipment, thereby improving the reliability and effectiveness of the transmission.
  • the channel carrying the control signaling sent by the base station to the UE is referred to as a physical downlink control channel (Physical Downlink Control CHannel, referred to as "PDCCH").
  • PDCCH Physical Downlink Control CHannel
  • the "transmission PDCCH” described below indicates that the PDCCH is transmitted or received through the PDCCH.
  • the base station can send control signaling on each transmission time interval (transmission time Interval, called “ ⁇ "); a length in time is 1 ms, including 14 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, The cartridge is called an "OFDM" symbol.
  • One OFDM symbol in time and one subcarrier on the frequency are called a resource element (Core Element, called “RE”); in a ⁇ , 12 sub-frequency
  • the carriers together form a physical resource block (Physical Resource Block, the tube is called "PRB").
  • PRB Physical Resource Block
  • the base station reserves 2 PRBs for the PDCCH for transmitting the PDCCH, and the PRBs other than the PRBs for transmitting the PDCCH may be used to transmit the physical downlink shared channel (Physical Downlink Shared CHannel, the cartridge is called "PDSCH").
  • a PRB includes a plurality of REs capable of carrying a PDCCH transmitted to a plurality of UEs, and the base station may map the PDCCHs transmitted to the plurality of UEs to the dispersed REs.
  • Such a design may cause the PDCCHs sent to each UE to appear on all subcarriers, so that the advantage of frequency diversity can be obtained, that is, when the radio channel corresponding to some of the subcarriers is deeply faded, the UE can also perform other subcarriers.
  • the PDCCH is obtained by demodulation.
  • the base station While transmitting the PDCCH, the base station transmits a Demodulation Reference Signal ("DM RS") for channel estimation at some fixed RE positions in the same PRB.
  • DM RS Demodulation Reference Signal
  • the UE may perform channel estimation according to the DM RS, and demodulate the PDCCH according to the channel estimation result, thereby acquiring control signaling sent by the base station.
  • the current mapping method does not consider the influence of subcarriers and mapping modes on channel estimation performance, thus affecting the transmission performance of control signaling. Summary of the invention
  • the embodiments of the present invention provide a method for transmitting and detecting control signaling, a network device, and a user equipment, which can improve transmission performance of control signaling.
  • an embodiment of the present invention provides a method for transmitting control signaling, where the method includes: determining a first antenna port used for transmitting control signaling; and determining, according to the first antenna port, a first antenna port a first subcarrier for transmitting a demodulation reference signal DM RS; mapping the control signaling to a resource in the first subcarrier for transmitting control signaling; and providing the user with the first subcarrier
  • the device transmits the control signaling.
  • an embodiment of the present invention provides a method for detecting control signaling, where the method includes: determining, according to a first antenna port used for transmitting control signaling, a transmission demodulation corresponding to the first antenna port.
  • the first subcarrier of the reference signal DM RS is used to detect the control signaling transmitted by the network device on the resource for transmitting the control signaling in the first subcarrier.
  • the embodiment of the present invention provides a network device, where the network device includes: a first determining module, configured to determine a first antenna port used for transmitting control signaling; and a second determining module, configured to use, according to the first Determining, by the determining module, the first antenna port, determining a first subcarrier for transmitting a demodulation reference signal DM RS corresponding to the first antenna port; and mapping, configured to map the control signaling to the second
  • the first transmission module is configured to transmit the control signaling to the user equipment on the first subcarrier.
  • the embodiment of the present invention provides a user equipment, where the user equipment includes: a first determining module, configured to determine, according to a first antenna port used for transmitting control signaling, a corresponding to the first antenna port Transmitting a first subcarrier of the demodulation reference signal DM RS; a first detecting module, configured to detect, on a resource used for transmitting the control signaling in the first subcarrier determined by the first determining module, to detect network device transmission The control signaling.
  • a first determining module configured to determine, according to a first antenna port used for transmitting control signaling, a corresponding to the first antenna port Transmitting a first subcarrier of the demodulation reference signal DM RS
  • a first detecting module configured to detect, on a resource used for transmitting the control signaling in the first subcarrier determined by the first determining module, to detect network device transmission The control signaling.
  • the method for transmitting and detecting control signaling, the network device, and the user equipment in the embodiment of the present invention can improve the transmission control signal by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal.
  • the accuracy of the channel estimation is such that the transmission performance of the control signaling can be improved.
  • FIG. 1 is a schematic flowchart of a method for transmitting control signaling according to an embodiment of the present invention.
  • FIG. 2 is a schematic block diagram of a physical resource block in accordance with an embodiment of the present invention.
  • FIG. 3 is another schematic flowchart of a method for transmitting control signaling according to an embodiment of the present invention.
  • 4 is another schematic block diagram of a physical resource block in accordance with an embodiment of the present invention.
  • FIG. 5 is still another schematic block diagram of a physical resource block according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a method for determining a first subcarrier according to an embodiment of the present invention.
  • FIG. 7 is still another schematic block diagram of a physical resource block according to an embodiment of the present invention.
  • FIG. 8 is still another schematic flowchart of a method for transmitting control signaling according to an embodiment of the present invention.
  • FIG. 9 is still another schematic block diagram of a physical resource block according to an embodiment of the present invention.
  • Figure 10 is a diagram showing the interleaving of REs used to transmit control signaling over different antenna ports in the same set of antenna ports in the time domain, in accordance with an embodiment of the present invention.
  • 11 is a diagram of interleaving of REs used in transmitting control signaling through different antenna ports in the same antenna port group in the frequency domain, in accordance with an embodiment of the present invention.
  • Figure 12 is a diagram showing the interleaving of REs used for transmitting control signaling through different antenna ports in the same antenna port group in the time domain and the frequency domain, in accordance with an embodiment of the present invention.
  • Figure 13 is a diagram showing the interleaving of REs used in transmission control signaling through antenna ports in different antenna port groups in the frequency domain, in accordance with an embodiment of the present invention.
  • Figure 14 is a diagram showing the interleaving of REs used for transmission control signaling through antenna ports in different antenna port groups in the time domain, in accordance with an embodiment of the present invention.
  • Figure 15 is a diagram showing the interleaving of REs used in transmission control signaling through antenna ports in different antenna port groups in the time domain and the frequency domain, in accordance with an embodiment of the present invention.
  • 16 is another schematic diagram of interleaving of REs used in transmission control signaling through antenna ports in different antenna port groups in time and frequency domains, in accordance with an embodiment of the present invention.
  • FIG. 17 is a schematic flowchart of a method for transmitting control signaling according to another embodiment of the present invention.
  • FIG. 18 is another schematic flowchart of a method for transmitting control signaling according to another embodiment of the present invention.
  • FIG. 19 is still another schematic flowchart of a method of transmitting control signaling according to another embodiment of the present invention.
  • FIG. 20 is a schematic flow chart of a method of determining a first subcarrier according to another embodiment of the present invention.
  • FIG. 21 is still another schematic flowchart of a method of transmitting control signaling according to another embodiment of the present invention.
  • FIG. 22 is still another schematic flowchart of a method of transmitting control signaling according to another embodiment of the present invention.
  • FIG. 23 is a schematic block diagram of a network device in accordance with an embodiment of the present invention.
  • Figure 24 is a schematic block diagram of a second determining module in accordance with an embodiment of the present invention.
  • Figure 25 is a schematic block diagram of a second determining unit in accordance with an embodiment of the present invention.
  • 26 is another schematic block diagram of a network device in accordance with an embodiment of the present invention.
  • Figure 27 is a schematic block diagram of a user equipment in accordance with an embodiment of the present invention.
  • FIG. 28 is another schematic block diagram of a user equipment according to an embodiment of the present invention.
  • 29 is a schematic block diagram of a first determining module in accordance with an embodiment of the present invention.
  • Figure 30 is a schematic block diagram of a second determining unit in accordance with an embodiment of the present invention.
  • FIG. 31 is still another schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 32 is still another schematic block diagram of a user equipment according to an embodiment of the present invention. detailed description
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • General Packet Radio Service General Packet Radio Service
  • LTE Long Term Evolution
  • Fludency Division Duplex LTE frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • a user equipment may be referred to as a terminal (Terminal), a mobile station (a mobile station ("MS”), and a mobile terminal ( Mobile Terminal), etc.
  • the user equipment can communicate with one or more core networks via a Radio Access Network (“RAN"), for example, the user equipment can be a mobile phone (or “cellular” "Telephone", a computer with a mobile terminal, etc., for example, the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • RAN Radio Access Network
  • the base station may be a base station (Base Transceiver Station, referred to as "BTS") in GSM or CDMA, or may be a base station (NodeB, a tube called “NB") in WCDMA, or may be
  • BTS Base Transceiver Station
  • NodeB a base station
  • NB base station
  • Evolutional Node B referred to as "ENB or e-NodeB”
  • LTE LTE is not limited in the present invention, but for convenience of description, the following embodiments will be described by taking ENB as an example.
  • FIG. 1 shows a schematic flow chart of a method 100 of transmitting control signaling in accordance with an embodiment of the present invention. As shown in FIG. 1, the method 100 includes: S110. Determine a first antenna port used by the transmission control signaling.
  • control signaling is mapped to the resource used for transmitting control signaling in the first subcarrier.
  • control signaling is transmitted to the user equipment on the first subcarrier.
  • the network device may determine, according to the first antenna port, a first subcarrier for transmitting the DM RS corresponding to the first antenna port; so that the network device may The control signaling is mapped to a resource in the first subcarrier that can be used for transmitting control signaling, and the control signaling is transmitted to the user equipment on the first subcarrier. Since the control signaling is transmitted on the subcarrier transmitting the DM RS, the channel estimation result of the control signaling is more accurate, and the channel estimation caused by the approximation processing method such as interpolation is avoided according to the DM RS carried on the adjacent or other subcarriers. The accuracy is reduced, thereby improving the reliability and effectiveness of control signaling transmission.
  • the method for transmitting control signaling in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the transmission performance of the order can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the network device determines a first antenna port used for transmission control signaling.
  • the network device may determine the first antenna port in multiple manners. For example, if the network device transmits control signaling to the UE through L (L is a natural number) PRBs, for each UE, one antenna port may be preset on each PRB; thus when the network device is at the ith ( When i is a natural number) transmission control signaling on the PRB, it may be determined that the i-th antenna port used for the transmission control signaling is the first antenna port; similarly, when the UE detects the control signaling on the i-th PRB, It can be determined that the detection of control signaling is performed using the ith antenna port.
  • L is a natural number
  • the network device may allocate different antenna ports to different UEs, and may notify the information of the “first antenna port” by sending signaling to the UE.
  • the antenna ports allocated by the network device to the UE may be randomly distributed antenna ports.
  • the first antenna port may be one antenna port for transmitting control signaling, or may be at least two antenna ports, that is, the network device may pass through one or more antenna ports.
  • User equipment transmits control signaling.
  • the network device determines, according to the first antenna port, a transmission demodulation reference corresponding to the first antenna port according to a correspondence between a preset antenna port and a subcarrier that can be used for transmitting the DM RS.
  • the first subcarrier of the signal DM RS is the first subcarrier of the signal DM RS.
  • one physical resource block PRB includes 12 subcarriers, and 6 subcarriers can be used to transmit the DM RS.
  • the network device can determine the subcarriers 0, 5, 10 as the first subcarrier.
  • a subcarrier corresponding to one antenna port may include one subcarrier, and may also include more than one subcarrier.
  • antenna port A may correspond only to subcarrier 0 for transmitting DM RS, or antenna port A may Corresponding to subcarriers 1, 6, 11 for transmitting DM RS, and the like.
  • antenna port A may correspond to subcarriers 0, 5, 10 for transmitting DM RS
  • antenna port B may correspond to subcarriers 1, 6, 11 for transmitting DM RS, as shown in FIG. 2
  • Antenna port 7 may correspond to subcarriers 0, 5 for transmitting DM RS
  • antenna port 8 may also correspond to subcarriers 0, 5 for transmitting DM RS; for example, antenna port 7 may be used for transmitting DM
  • the antenna port 9 can correspond to the subcarriers 1, 10 for transmitting the DM RS.
  • the network device maps the control signaling to resources in the first subcarrier for transmitting control signaling.
  • the network device may map the control signaling to part or all of the resources in the first subcarrier for transmitting control signaling, that is, the network device may map the control signaling to the first antenna port.
  • the network device may map control signaling only to subcarrier 0, or may map control signaling to subcarriers 0, 5, 11.
  • the network device may map control signaling to other subcarriers in addition to the control signaling, and the embodiment of the present invention is not limited thereto.
  • the network device transmits the control signaling to the user equipment on the first subcarrier. It should be understood that the method for transmitting control signaling according to the embodiment of the present invention further includes that the network device transmits the DM RS on the first subcarrier, which is not described herein.
  • the method for transmitting control signaling in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the transmission performance of the order can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the network device may be a base station, and the network device may also be an access point (Access Point, called “AP”), and a remote wireless device (Remo Radio Equipment, called “RRE” "), remote radio port (Remote Radio Head, “RTH”), remote radio unit (Remote Radio Unit, "RRU”).
  • AP Access Point
  • RRE Remote Radio Equipment
  • RTH Remote Radio Head
  • RRU Remote Radio Unit
  • the determining, by the network device, the first antenna port used by the transmission control signaling includes: determining, by the network device, at least two antenna ports used for transmitting the control signaling The first antenna port is different in different sub-carriers for transmitting the DM RS corresponding to different antenna ports of the at least two antenna ports.
  • antenna port A corresponds to subcarriers 0, 5, 10 for transmitting DM RS
  • antenna port B corresponds to subcarriers 1, 6, 11 for transmitting DM RS, that is, the two antenna ports
  • the subcarriers corresponding to A and B for transmitting the DM RS are different.
  • the network device determines that the antenna port used for the transmission control signaling is the first antenna port. .
  • the network device if the network device transmits control signaling through the antenna port A, the network device Determining the antenna port A as the first antenna port, determining at least one subcarrier for transmitting the DM RS corresponding to the antenna port A as the first subcarrier, and mapping control signaling to the first subcarrier Transmitting the control signaling on part or all of the resources of the control signaling; if the network device transmits the control signaling through the antenna port B, the network device determines the antenna port B as the first antenna port, and the antenna port The corresponding at least one subcarrier for transmitting the DM RS is determined as the first subcarrier, and the control signaling is mapped to part or all of the resources in the first subcarrier for transmitting control signaling to transmit the control. Signaling.
  • antenna ports A and B only use antenna ports A and B as an example.
  • the network device passes other antenna ports or more than two.
  • the processing flow of the network device is similar to that of the foregoing embodiment, and is not described here.
  • the subcarriers for transmitting the DM RS corresponding to different antenna ports may be completely different, may be identical, or may be partially the same. Different antenna ports corresponding to the same subcarrier used to transmit the DM RS can be set as one group. Thus, the first subcarrier corresponding to the first antenna port can be determined according to the correspondence between the antenna port group and the subcarrier for transmitting the DM RS.
  • determining the first subcarrier for transmitting the demodulation reference signal DM RS corresponding to the first antenna port includes:
  • the network device determines, according to the first antenna port, a first antenna port group to which the first antenna port belongs;
  • the network device in a first subcarrier set formed by a physical resource block PRB for transmitting part or all of subcarriers of the DM RS, the network device corresponding to the first antenna port group in the first subcarrier set
  • the subcarrier is determined as the first subcarrier
  • Transmitting the control signaling to the user equipment on the first subcarrier includes:
  • the network device passes the antenna port in the first antenna port group, and is on the first subcarrier.
  • the control signaling is transmitted to the user equipment.
  • the method for transmitting control signaling further includes that the network device transmits the DM RS on the first subcarrier, and the network device passes the antenna port in the first antenna port group, where the first subcarrier
  • the DM RS is transmitted to the user equipment, and is not described here.
  • antenna ports 7 and 8 are the first set of antenna ports, and antenna ports 9 and
  • 10 is a second group of antenna ports, the first group of antenna ports corresponding to subcarriers 0, 5, 10 for transmitting DM RS, and the second group of antenna ports corresponding to subcarriers 1, 6, 11 for transmitting DM RS, And JM sets the first subcarrier set to include subcarriers 0, 1, 5, 6, 10, 11.
  • the network device may determine that the first antenna port group to which the first antenna port belongs is the first group, and thus may be in the subcarrier 0. , 5, 10 transmit DM RS, and transmit control signaling on the RE for transmitting control signaling on subcarriers 0, 5, 10; similarly, when the network device determines the first used by the transmission control signaling When the antenna port is the antenna port 9 or 10, the network device may determine that the first antenna port group to which the first antenna port belongs is the second group, so that the DM RS may be transmitted on the subcarriers 1, 6, 11 and in the subcarrier. 1, 6, and 11 can be used to transmit control signaling on the RE for transmitting control signaling.
  • a subcarrier corresponding to one antenna port group may include one subcarrier, and may also include more than one subcarrier; subcarriers corresponding to different antenna port groups may be completely different or partially identical.
  • the first set of subcarriers includes some or all of the subcarriers in the PRB that can be used to transmit the DM RS.
  • the RE occupied by these signals is not “Resources that can be used to transmit control signaling", at which point the network device does not transmit the PDCCH on these occupied REs. For example, as shown in FIG.
  • the distributed REs are not "resources that can be used for transmission control signaling", and network devices can only transmit control signaling according to embodiments of the present invention through REs other than these REs and DM RSs.
  • the antenna port included in the first antenna port group uses the same resource unit RE for the transmission of the DM RS. That is, in the embodiment of the present invention, the antenna port using the same resource unit RE for the transmission of the DM RS may be set as a group of antenna ports.
  • antenna ports 7 to 10 For example, in the corresponding diagram of the RE of the DM RS of a PRB in the Long Term Evolution (LTE) system shown in FIG. 4, four antenna ports are used to transmit the RE carrying the DM RS.
  • the numbers of the four antenna ports in the LTE system are antenna ports 7 to 10, respectively.
  • antenna ports 7 and 8 use the same RE to transmit the DM RS, and antenna ports 7 and 8 can be distinguished by different orthogonal codes
  • antenna ports 9 and 10 use the same RE to transmit the DM RS
  • antenna port 9 and 10 can be distinguished by different orthogonal codes. Therefore, the 4 bar antenna ports 7 and 8 can be regarded as the first group antenna port, and the antenna ports 9 and 10 can be regarded as the second group antenna port.
  • group in the embodiments of the present invention is only for the purpose of explaining the meaning of "one or more”, for example, an antenna port group represents one or more antenna ports, and there is actually no grouping operation, the term “group” " can also be understood as “sets”, “collections”, “classes”, etc.
  • the network device determines, as the first subcarrier, the subcarrier corresponding to the first antenna port group in the first subcarrier set, including:
  • the network device determines, as the first subcarrier group, the subcarrier group whose sequence number is the same as the sequence number of the first antenna port group. ;
  • the network device determines, as the first subcarrier, the subcarrier included in the first subcarrier group.
  • the first subcarrier set includes L (L is a natural number) group subcarriers, and each group of subcarriers includes at least one subcarrier that can be used for transmitting the DM RS, and an antenna for transmitting control signaling.
  • the port also includes L antenna port groups, each antenna port group including at least one antenna end mouth.
  • all six subcarriers (numbered 0, 1, 5, 6, 10, 11) that can be used to transmit the DM RS are divided into two groups, and the first group of subcarrier numbers is 0. 5, 10, the second group of subcarrier numbers are 1, 6, and 11.
  • the network device transmits control signaling through any one of the antenna ports of the first group of antenna ports, the DM RSs are transmitted on the subcarriers numbered 0, 5, and 10, and the control signaling is mapped to the subcarriers;
  • the network device transmits control signaling through any of the antenna ports of the second group of antenna ports, and then transmits the DM RSs on the subcarriers numbered 1, 6, and 11, and maps the control signaling to the subcarriers.
  • the network device can transmit the control signaling quickly and in a single manner, and the user equipment can also quickly detect the control signaling, and the embodiment of the present invention passes the resources for transmitting the subcarriers for demodulating the reference signal.
  • the upper transmission control signaling can improve the channel estimation accuracy of the transmission control signaling to a greater extent, and improve the transmission performance of the control signaling.
  • the method 100 for transmitting control signaling further includes:
  • the network device transmits the DM RS to the user equipment by using an antenna port in the N groups of antenna port groups, where N is a natural number, on consecutive subcarriers on each of the N frequencies included in the first subcarrier set.
  • subcarriers numbered 0, 1, 5, 6, 10, 11 respectively can be used to transmit the DM RS, including the first subcarriers 0, 1, 5, 6, 10, 11
  • subcarriers 0, 1 are continuous in frequency
  • subcarriers 5, 6 are continuous in frequency
  • Send DM RS Send DM RS.
  • the network device may transmit the DM RS to the user equipment through the same antenna port in each antenna port group, or may pass different ones in each antenna port group.
  • the antenna port transmits the DM RS.
  • DM RS is transmitted on subcarrier 0 through antenna port 7 belonging to the first group of antenna ports
  • DM RS is transmitted on subcarrier 5 through antenna port 8 belonging to the first group of antenna ports.
  • the control signaling is transmitted to the user equipment by using the antenna port in the first antenna port group; but for one PRB, all the intervals are separated by L subcarriers.
  • the network device can transmit control signaling using the same set of antenna ports.
  • the network device transmits the PDCCH through the first group of antenna ports;
  • the numbered odd subcarriers may be used to transmit the RE of the PDCCH, and the network device transmits the PDCCH through the second set of antenna ports.
  • Mapping the PDCCH in such a manner has the advantage of a single ticket, and the four subcarriers (numbered 0, 1, 10, 11) of the six subcarriers for transmitting the DM RS all use the technical solution of the present invention.
  • the channel estimation accuracy of the PDCCH transmitted by any of the two sets of antenna ports can be improved.
  • the group to which the antenna port used for transmitting the DM RS belongs is the same as the group to which the antenna port used for the transmission control signaling belongs. That is, using the same set of antenna ports to transmit on the subcarriers included in the first subcarrier set DM RS and control signaling.
  • the control signal is transmitted to the user equipment on the first subcarrier through the antenna port in the first antenna port group. , including:
  • the REs used are interleaved in the time domain and/or frequency domain.
  • FIG. 10 a schematic diagram of interleaving REs used for transmitting control signaling through different antenna ports in the first antenna port group in the time domain is as shown in FIG.
  • the network device may send a PDCCH to the UE through four antenna ports, and the first group of antenna ports includes antenna ports 7, 8.
  • the RE used by the network device to transmit the PDCCH to the UE through the antenna ports 7, 8 is in the time domain.
  • Interleaving, that is, interleaving different OFDM symbols; the second group of antenna ports includes antenna ports 9, 10, and the REs used by the network device to transmit PDCCHs to the UE through antenna ports 9, 10 are interleaved in the time domain.
  • FIG. 10 only schematically shows one example of RE interleaving in the time domain, but the embodiment of the present invention is not limited thereto, for example, for subcarrier 0, in OFDM symbol with number 0 Control signaling is transmitted through the antenna port 7 on the corresponding RE, and control signaling is transmitted through the antenna port 8 on the remaining REs for transmitting control signaling.
  • FIG. 11 and 12 only schematically illustrate an example in accordance with an embodiment of the present invention, and embodiments of the present invention are not limited thereto.
  • the method 100 for transmitting control signaling further includes:
  • the control signaling is transmitted to the user equipment on the subcarriers included in the second subcarrier set by using the antenna ports in the different antenna port groups, where the second subcarrier set is used by one PRB to transmit control signaling.
  • the RE used in the control signaling is transmitted in the time domain and/or frequency through the antenna ports in different antenna port groups Interlaced on the domain.
  • the network device may transmit control signaling to the user equipment over some or all of the subcarriers included in the second set of subcarriers through antenna ports in different sets of antenna ports.
  • the REs used by the network device to transmit control signaling through the antenna ports in different antenna port groups are interleaved in the frequency domain.
  • all the subcarriers that can be used to transmit the DM RS are subcarriers numbered 0, 1, 5, 6, 10, 11 and are grouped into groups.
  • the number of the first group of subcarriers is 0, 5 10, the second group of subcarriers are numbered 1, 6, and 11; if the network device transmits control signaling through any one of the antenna ports of the first group of antenna ports, on the subcarriers numbered 0, 5, and 10 Transmitting the DM RS and mapping the control signaling to subcarriers numbered 0, 2, 4, 5, 8, 10; if the network device transmits control signaling through any of the antenna ports of the second group of antenna ports, The DM RSs are transmitted on the subcarriers numbered 1, 6, and 11, and the control signaling is mapped to the subcarriers numbered 1, 3, 6, 7, 9, and 11.
  • the subcarriers that are not used for transmitting the DM RS include subcarriers numbered 2, 3, 4, 7, 8, and 9, and one of the subcarriers is used to transmit the PDCCH through the first group of antenna ports, and Half is used to transmit the PDCCH through the second set of antenna ports.
  • only the first group of antenna ports transmit subcarriers with PDCCH usage numbers 2, 4, and 8, and the second group of antenna ports transmit subcarriers with PDCCH usage numbers 3, 7, and 9.
  • the present invention also includes other cases of allocating subcarriers, for example, the first group of antenna ports send PDCCHs using subcarriers numbered 3, 7, and 9, and the second group of antenna ports send PDCCH use numbers to 2, 4, 8 subcarriers; or the first group of antenna ports send PDCCHs using subcarriers numbered 2, 3, 4, and the second group of antenna ports send PDCCHs using subcarriers numbered 7, 8, and so on.
  • the REs used by the network device to transmit control signaling through the antenna ports in different antenna port groups are interleaved in the time domain.
  • the subcarriers not used for transmitting the DM RS include subcarriers numbered 2, 3, 4, 7, 8, and 9, and half of the OFDM symbols (numbered 0, 2) , symbols of 4, 6, 8, 10, 12) are used to transmit the PDCCH through the first group of antenna ports, and the other half of the OFDM symbols (symbols numbered 1, 3, 5, 7, 9, 11, 13) are used to pass The second set of antenna ports transmits the PDCCH.
  • the present invention also includes other cases of allocating OFDM symbols, for example, the first group of antenna ports transmit PDCCH using an even number of OFDM symbols, and the second group of antenna ports send PDCCHs with an odd number of OFDM symbols. Or, the first group of antenna ports send PDCCHs with OFDM symbols numbered 0 to 6, and the second group of antenna ports send PDCCHs with OFDM symbols numbered 7 to 13.
  • the REs used by the network device to transmit control signaling through the antenna ports in different antenna port groups are interleaved in the time domain and the frequency domain.
  • all REs included on subcarriers numbered 2, 3, 4, 7, 8, 9 can be interleaved in time and frequency for transmitting PDCCH through different sets of antenna ports.
  • Figure 15 only shows an embodiment in accordance with the present invention, and those of ordinary skill in the art will appreciate that the present invention may also include other assignments, for example, at numbers 2, 3, 4, 7, 8. All REs on the subcarriers of 9 transmit control signaling through another set of antenna ports, or as The scheme shown in Fig. 16 performs allocation, or includes allocation of other rules, allocation of random interleaving, and the like.
  • the REs used for transmitting the control signaling in the antenna port in different antenna port groups are interleaved in the time domain and the frequency domain, so that the REs with good channel estimation accuracy and poor precision can be evenly distributed to all.
  • the antenna port can achieve similar channel estimation accuracy for the PDCCH transmitted by different antenna ports, thereby improving the transmission performance of the control signaling.
  • control signaling is transmitted to the user equipment on the subcarriers included in the second subcarrier set by using the antenna ports in the different antenna port groups, including:
  • the network device transmits control signaling to the user equipment through different antenna ports in different antenna port groups, wherein the same antenna port is used.
  • the REs used by the different antenna ports in the group to transmit the control signaling are interleaved in the time domain and/or the frequency domain.
  • REs used to transmit control signaling through antenna port 7 and antenna port 8 of the first set of antenna ports are interleaved in the time domain and/or frequency domain; and/or through antenna ports 9 in the second set of antenna ports
  • the REs used for transmission control signaling with antenna port 10 are interleaved in the time domain and/or frequency domain.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the method for transmitting control signaling in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the transmission performance of the order can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • Figure 17 shows a schematic flow diagram of a method 300 of transmitting control signaling in accordance with an embodiment of the present invention. As shown in FIG. 17, the method 300 includes:
  • the control signaling transmitted by the network device is detected on the resource transmitting the control signaling.
  • the method for detecting control signaling in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the transmission performance of the order can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the network device can transmit the DM RS on the subcarriers numbered 0 and 1 among the 12 subcarriers included in one PRB.
  • the ⁇ antenna port A corresponds to the subcarrier 0.
  • the antenna port B corresponds to the subcarrier 1. If the network device transmits the control signaling through the antenna port A, the network device transmits the DM RS on the subcarrier with the number 0, and the RE that can be used for transmitting the control signaling in the subcarrier Transmission control signaling.
  • channel estimation is performed according to the DM RS received on the subcarrier numbered 0/1, and the PDCCH on the subcarrier is demodulated according to the result of the channel estimation to obtain the network.
  • Control signaling sent by the device to the UE.
  • the method for detecting control signaling further includes: the user equipment receives the DM RS on the first subcarrier, and the user equipment performs channel estimation according to the received DM RS, and controls the control signal according to the channel estimation result. Let the test be carried out. It should be understood that the user equipment may detect the control signaling on other subcarriers in addition to the control signaling in the first subcarrier, and the embodiment of the present invention is not limited thereto.
  • the network device can flexibly determine the resource suitable for transmitting the PDCCH according to the channel condition between the network device and the UE, and the UE needs to pass the blind detection because it does not know which REs the network device passes on which REs to transmit the PDCCH.
  • the resources used by the network device to send the PDCCH are known.
  • the network device may send multiple PDCCHs to the same UE. Therefore, the UE needs to perform multiple detections.
  • the UE performs channel estimation according to the DM RSs received on the subcarriers numbered 0 and 1, respectively, and respectively according to the result of the channel estimation.
  • the PDCCH on the subcarriers is demodulated to obtain the PDCCH that the network device sends to the UE.
  • the method 300 for detecting control signaling further includes:
  • the first antenna port may be one antenna port for transmitting control signaling, or may be at least two antenna ports; the subcarrier corresponding to one antenna port may include one subcarrier. It is also possible to include more than one subcarrier. It should also be understood that the subcarriers corresponding to different antenna ports may be completely different, may be identical, or may be partially identical.
  • determining a first subcarrier for transmitting the demodulation reference signal DM RS corresponding to the first antenna port includes:
  • the subcarrier corresponding to the first antenna port group in the first subcarrier set is Determined to be the first subcarrier;
  • Detecting the network device transmission on the resource for transmitting the control signaling in the first subcarrier Control signaling including:
  • the control signaling is detected on a resource for transmitting the control signaling in the first subcarrier by using an antenna port in the first antenna port group.
  • the method for detecting control signaling further includes that the user equipment receives the DM RS on the first subcarrier, and the user equipment passes the antenna port in the first antenna port group, where the first subcarrier
  • the DM RS transmitted by the network device is received, and the channel estimation is performed according to the DM RS to detect the control signaling.
  • no further details are provided herein.
  • antenna ports 7 and 8 are the first group of antenna ports
  • antenna ports 9 and 10 are the second group of antenna ports
  • the second set of antenna ports corresponds to subcarriers 1, 6, 11 for transmitting DM RS
  • iM sets the first set of subcarriers including subcarriers 0, 1, 5, 6, 10, 11.
  • the user equipment may determine that the first antenna port group to which the first antenna port belongs is the first group, and thus may be in the subcarrier 0.
  • the antenna port is the antenna port 9 or 10
  • the user equipment can determine that the first antenna port group to which the first antenna port belongs is the second group, so that the DM RS can be received on the subcarriers 1, 6, and 11, and the subcarriers are received. 1, 6, and 11 can be used to detect control signaling on the RE for transmitting control signaling.
  • a subcarrier corresponding to one antenna port group may include one subcarrier, and may also include more than one subcarrier; subcarriers corresponding to different antenna port groups may be completely different or partially identical.
  • the antenna port included in the first antenna port group uses the same resource unit RE for the transmission of the DM RS. That is, in the embodiment of the present invention, the antenna port using the same resource unit RE for the transmission of the DM RS may be set as a group of antenna ports.
  • an antenna port group represents one or more antenna ports, and there is actually no grouping operation.
  • group herein can also be understood as “set”, “set”, “class”, and the like.
  • the subcarrier corresponding to the first antenna port group in the first subcarrier set is determined as the first subcarrier, and includes:
  • the user equipment determines the subcarrier group with the same sequence number as the first antenna port group as the first subcarrier group. ;
  • the user equipment determines the subcarrier included in the first subcarrier group as the first subcarrier.
  • the first subcarrier set includes L (L is a natural number) group subcarriers, and each group of subcarriers includes at least one subcarrier that can be used for transmitting the DM RS, and an antenna for transmitting control signaling.
  • the port also includes L antenna port groups, each antenna port group including at least one antenna port.
  • the method 300 further includes:
  • Detecting the control signaling on the resource used for transmitting the control signaling in the first subcarrier including:
  • the control signaling is detected on a resource used for transmitting the control signaling in the first subcarrier by using an antenna port in the first antenna port group and according to the channel estimation information.
  • the user equipment detects the control signaling on the resource used for transmitting the control signaling in the first subcarrier by using different antenna ports in the first antenna port group, where The REs used to transmit the control signaling over different antenna ports in the first antenna port group are interleaved in the time domain and/or the frequency domain, as shown in FIGS. 10 to 12.
  • the method 300 for detecting control signaling further includes:
  • a schematic diagram of interleaving REs used in antenna port transmission control signaling in different antenna port groups in the time domain and/or frequency domain is shown in Figs. 13 to 16 .
  • the control signaling that is transmitted by the network device is detected on the subcarriers included in the second subcarrier set by using the antenna ports in the different antenna port groups, including: Different antenna ports in the group detect the control signaling on the subcarriers included in the second subcarrier set, and transmit the RE used in the control signaling through different antenna ports in the same antenna port group in the time domain Interleaved with and/or in the frequency domain.
  • the method for detecting control signaling in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • the transmission performance of the order can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the control signal.
  • FIG. 23 shows a schematic block diagram of a network device 500 in accordance with an embodiment of the present invention.
  • the network device 500 includes:
  • a first determining module 510 configured to determine a first antenna port used by the transmission control signaling
  • a second determining module 520 configured to determine, according to the first antenna port determined by the first determining module 510, the first antenna a port corresponding to the first subcarrier for transmitting the demodulation reference signal DM RS
  • the mapping module 530 is configured to map the control signaling to the first subcarrier determined by the second determining module 520 for transmitting the control signal On the resources of the order;
  • the first transmission module 540 is configured to transmit the control signaling to the user equipment on the first subcarrier. Therefore, the network device in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the transmission performance of the control signaling. .
  • the first determining module 510 is further configured to: determine, in the at least two antenna ports used for transmitting the control signaling, the first antenna port, and different antenna ports of the at least two antenna ports The corresponding subcarriers used to transmit the DM RS are different.
  • the second determining module 520 includes: a first determining unit 521, configured to determine, according to the first antenna port, that the first antenna port belongs to Antenna port group;
  • a second determining unit 522 configured to: in the first subcarrier set formed by using one or all subcarriers for transmitting the DM RS included in one physical resource block PRB, the first subcarrier set and the first antenna The corresponding subcarrier of the port group is determined as the first subcarrier;
  • the first transmission module 540 is further configured to: transmit the control signaling to the user equipment on the first subcarrier by using an antenna port in the first antenna port group.
  • the antenna port included in the first antenna port group uses the same resource unit RE for the transmission of the DM RS.
  • the second determining unit 522 optionally includes: a first determining subunit 525, configured to use the number of the first subcarrier set and the number of antenna port groups. In the same subcarrier group, the subcarrier group whose sequence number is the same as the sequence number of the first antenna port group is determined as the first subcarrier group;
  • the second determining subunit 526 is configured to determine the subcarrier included in the first subcarrier group as the first subcarrier.
  • the network device 500 further includes:
  • the second transmission module 550 is configured to transmit the DM RS to the user equipment by using antenna ports in the N sets of antenna port groups on consecutive subcarriers on each of the N frequency groups included in the first subcarrier set, where N For natural numbers.
  • the first transmission module 540 is further configured to: transmit the control signal to the user equipment on the first subcarrier by using different antenna ports in the first antenna port group.
  • the REs used to transmit the control signaling through different antenna ports in the first set of antenna ports are interleaved in the time domain and/or the frequency domain.
  • the network device 500 further includes: a third transmission module 560, configured to be included in the second subcarrier set by using antenna ports in different antenna port groups Transmitting, by the subcarrier, the control signaling to the user equipment, where the second set of subcarriers is formed by one or all subcarriers in a PRB for transmitting control signaling but not for transmitting the DM RS, and in the second In the set of subcarriers, the REs used to transmit the control signaling through antenna ports in different antenna port groups are interleaved in the time domain and/or the frequency domain.
  • a third transmission module 560 configured to be included in the second subcarrier set by using antenna ports in different antenna port groups Transmitting, by the subcarrier, the control signaling to the user equipment, where the second set of subcarriers is formed by one or all subcarriers in a PRB for transmitting control signaling but not for transmitting the DM RS, and in the second In the set of subcarriers, the REs used to transmit the control signal
  • the third transmission module 560 is further configured to: transmit to the user equipment on the subcarriers included in the second subcarrier set by using different antenna ports in different antenna port groups.
  • the control signaling, and the REs used to transmit the control signaling over different antenna ports in the same antenna port group are interleaved in the time domain and/or the frequency domain.
  • the network device may be a base station, and the network device may also be It is an access point AP, a remote wireless device RRE, a remote radio port RRH, a remote radio unit RRU, and the like.
  • network device 500 in accordance with an embodiment of the present invention may correspond to network devices in a method of transmitting/detecting control signaling in accordance with embodiments of the present invention, and that the above and other operations and/or operations of various modules in network device 500 The functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 1 to FIG. 22, and are not described herein again.
  • the network device in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the transmission performance of the control signaling. .
  • Figure 27 shows a schematic block diagram of a user equipment 700 in accordance with an embodiment of the present invention.
  • the user equipment 700 includes:
  • a first determining module 710 configured to determine, according to the first antenna port used for transmitting control signaling, a first subcarrier for transmitting the demodulation reference signal DM RS corresponding to the first antenna port;
  • the first detecting module 720 is configured to detect the control signaling transmitted by the network device on the resource used for transmitting the control signaling in the first subcarrier determined by the first determining module 710.
  • the user equipment in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the transmission performance of the control signaling. .
  • the user equipment 700 further includes: a second determining module 730, configured to determine the first one of the at least two antenna ports used for transmitting the control signaling An antenna port, where different antenna ports of the at least two antenna ports correspond to different subcarriers for transmitting the DM RS.
  • the first determining module 710 includes: a first determining unit 711, configured to determine, according to the first antenna port, that the first antenna port belongs to Antenna port group; a second determining unit 712, configured to: in the first subcarrier set formed by using one or all subcarriers for transmitting the DM RS included in one physical resource block PRB, the first subcarrier set and the first antenna The corresponding subcarrier of the port group is determined as the first subcarrier;
  • the first detecting module 720 is further configured to: detect, by using an antenna port in the first antenna port group, the control signaling on a resource used for transmitting the control signaling in the first subcarrier.
  • the antenna port included in the first antenna port group uses the same resource unit RE for the transmission of the DM RS.
  • the second determining unit 712 includes: a first determining subunit 715, configured to use the number of the first subcarrier sets and the number of antenna port groups. In the same subcarrier group, the subcarrier group whose sequence number is the same as the sequence number of the first antenna port group is determined as the first subcarrier group;
  • the second determining subunit 716 is configured to determine the subcarrier included in the first subcarrier group as the first subcarrier.
  • the user equipment 700 further includes: a receiving module 740, configured to: on each of the N subcarriers included in the first subcarrier set, Receiving, by the antenna port in the N sets of antenna port groups, the DM RS transmitted by the network device, where N is a natural number;
  • the obtaining module 750 is configured to obtain channel estimation information according to the received DM RS, where the first detecting module 720 is further configured to: pass the antenna port in the first antenna port group and according to the channel estimation information, in the first The control signaling is detected on a resource in the subcarrier for transmitting the control signaling.
  • the first detecting module 720 is further configured to: use, by using different antenna ports in the first antenna port group, to transmit the control signaling in the first subcarrier.
  • the control signaling is detected on the resource, wherein the REs used for transmitting the control signaling through different antenna ports in the first antenna port group are interleaved in the time domain and/or the frequency domain.
  • the user equipment 700 further includes: a second detecting module 760, configured to be included in the second subcarrier set by using antenna ports in different antenna port groups Detecting, by using the subcarrier, the control signaling transmitted by the network device, where the second subcarrier set is formed by using part or all of subcarriers in the PRB for transmitting control signaling but not for transmitting the DM RS, and In the two subcarrier sets, the REs used to transmit the control signaling through the antenna ports in different antenna port groups are interleaved in the time domain and/or the frequency domain.
  • a second detecting module 760 configured to be included in the second subcarrier set by using antenna ports in different antenna port groups Detecting, by using the subcarrier, the control signaling transmitted by the network device, where the second subcarrier set is formed by using part or all of subcarriers in the PRB for transmitting control signaling but not for transmitting the DM RS, and In the two subcarrier sets, the REs used to transmit the control signaling through the
  • the second detecting module 760 is further configured to: detect, by using different antenna ports in different antenna port groups, the control signaling on the subcarriers included in the second subcarrier set. And the REs used to transmit the control signaling over different antenna ports in the same antenna port group are interleaved in the time domain and/or the frequency domain.
  • the user equipment 700 may correspond to the user equipment in the method of transmitting/detecting control signaling of the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the user equipment 700.
  • the user equipment 700 may correspond to the user equipment in the method of transmitting/detecting control signaling of the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the user equipment 700.
  • no further details are provided herein.
  • the user equipment in the embodiment of the present invention can improve the channel estimation accuracy of the transmission control signaling by transmitting control signaling on the resource for transmitting the subcarrier of the demodulation reference signal, thereby improving the transmission performance of the control signaling. .
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separate, and the components displayed as the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the storage medium includes a plurality of instructions for causing a computer device (which may be a personal computer or a server), including: a USB flash drive, a removable hard disk, a read-only memory (ROM), and a random access memory (RAM). Random Access Memory ), disk or CD, etc.
  • a computer device which may be a personal computer or a server
  • a USB flash drive including: a USB flash drive, a removable hard disk, a read-only memory (ROM), and a random access memory (RAM). Random Access Memory ), disk or CD, etc.
  • RAM random access memory

Abstract

L'invention concerne un procédé permettant de transmettre et de détecter une signalisation de commande, un dispositif de réseau et un équipement d'utilisateur. Le procédé de transmission d'une signalisation de commande comprend : la détermination d'un premier port d'antenne utilisé pour transmettre une signalisation de commande ; selon le premier port d'antenne, la détermination d'une première sous-porteuse servant à transmettre un signal de référence de démodulation correspondant au premier port d'antenne ; le mappage de la signalisation de commande à une ressource qui est utilisée pour transmettre la signalisation de commande dans la première sous-porteuse ; et la transmission de la signalisation de commande à l'équipement d'utilisateur sur la première sous-porteuse. Le procédé de transmission et de détection d'une signalisation de commande, le dispositif de réseau et l'équipement d'utilisateur selon les modes de réalisation de la présente invention peuvent augmenter la précision d'estimation de canal pour transmettre une signalisation de commande en transmettant une signalisation de commande sur une ressource d'une sous-porteuse qui est utilisée pour émettre un signal de référence de démodulation, permettant ainsi d'augmenter les performances de transmission de la signalisation de commande.
PCT/CN2013/070889 2012-02-13 2013-01-23 Procédé de transmission et de détection d'une signalisation de commande, dispositif de réseau et équipement d'utilisateur WO2013120408A1 (fr)

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CN 201210031574 CN103248586A (zh) 2012-02-13 2012-02-13 传输和检测控制信令的方法、网络设备以及用户设备

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CN108989009B (zh) * 2017-04-01 2019-08-06 华为技术有限公司 传输dmrs的方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010134755A2 (fr) * 2009-05-19 2010-11-25 엘지전자 주식회사 Procédé et appareil de transmission d'information de commande
CN101964676A (zh) * 2009-07-22 2011-02-02 中兴通讯股份有限公司 中继链路下行解调参考信号的发送方法、基站及中继站
CN102118864A (zh) * 2010-01-05 2011-07-06 电信科学技术研究院 中继系统backhaul链路控制信道的REG映射、编号方法和设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010134755A2 (fr) * 2009-05-19 2010-11-25 엘지전자 주식회사 Procédé et appareil de transmission d'information de commande
CN101964676A (zh) * 2009-07-22 2011-02-02 中兴通讯股份有限公司 中继链路下行解调参考信号的发送方法、基站及中继站
CN102118864A (zh) * 2010-01-05 2011-07-06 电信科学技术研究院 中继系统backhaul链路控制信道的REG映射、编号方法和设备

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