WO2019047902A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication Download PDF

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Publication number
WO2019047902A1
WO2019047902A1 PCT/CN2018/104427 CN2018104427W WO2019047902A1 WO 2019047902 A1 WO2019047902 A1 WO 2019047902A1 CN 2018104427 W CN2018104427 W CN 2018104427W WO 2019047902 A1 WO2019047902 A1 WO 2019047902A1
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Prior art keywords
orthogonal mask
frequency domain
time
length
terminal device
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PCT/CN2018/104427
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English (en)
Chinese (zh)
Inventor
张永平
张旭
陈铮
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method and device.
  • the basic time unit of downlink resource scheduling is a slot.
  • a slot can be divided into a control area and a data area, where the data area is used to send data information such as a physical downlink shared channel (PDSCH), and the control area is used for sending.
  • Control information such as a physical downlink control channel (PDCCH).
  • FIG. 1 there is a concept of a control resource set in the control region.
  • the control area shown in FIG. 1 may be divided into one or more control resource sets, and then each control resource set may be scheduled to different UEs, and the control resource sets of different UEs may overlap, and the overlap may be Specifically, they overlap partially or completely.
  • the control resource set of UE1 and UE2 is taken as an example.
  • FIG. 2a shows that the control resource sets of UE1 and UE2 may partially overlap
  • FIG. 2b shows that the control resource sets of UE1 and UE2 may all overlap.
  • the PDCCH may be transmitted in a multi-user MIMO manner.
  • the method of multi-user MIMO that is, the method of spatial division multiplexing (SDM)
  • SDM spatial division multiplexing
  • the PDCCH of the UE1 may be transmitted on the antenna port 1 and the PDCCH of the UE2 may be transmitted on the antenna port 2 in an SDM manner.
  • the network device may adopt a manner of transmitting orthogonal reference signals at different antenna ports to eliminate the influence of channel information on the received PDCCH and improve the receiving performance of the PDCCH.
  • a common way is to implement orthogonality of different port reference signals based on a code division manner, specifically: the network device multiplies the same reference signal sequence by an orthogonal mask associated with different ports (orthogonal The cover code (OCC) is mapped to the corresponding time-frequency resource, and the UE side also knows in advance the reference signal and the orthogonal mask associated with the UE for receiving the PDCCH port, so the UE side can know based on the advance
  • the reference signal and the orthogonal mask associated with the UE for receiving the PDCCH port obtain channel information by channel measurement, thereby eliminating the influence of the channel information on the received PDCCH.
  • OCC orthogonal mask associated with different ports
  • the control resource set 1 corresponding to the UE1 overlaps with the control resource set 2 corresponding to the UE2, and the PDCCH of the UE1 is transmitted in the antenna port 1, and the PDCCH of the UE2 is transmitted in the antenna port 2, then
  • the network device can reference the reference signal sequence s and two orthogonal masks of length 3, and the two orthogonal masks are [+1 +1 +1] and
  • the network device can multiply the reference signal sequence S by two orthogonal masks to obtain [+s + s + s] and Then, [+s + s + s] is mapped to the time-frequency resource in the control resource set 1 corresponding to the UE1, and is transmitted through the port 1, and Mapping to the time-frequency resource in the control resource set 2 corresponding to the UE2, and transmitting through the port 2, the UE1 can obtain the channel parameter H1 between the UE1 and the network device by processing the received reference signal, thereby The influence of the channel parameter H1 on the PDCCH received by the UE1 can
  • the orthogonal mask is divided into two types: a frequency domain orthogonal mask and a time domain orthogonal mask.
  • the so-called frequency domain orthogonal mask refers to mapping the orthogonally processed reference signals to different frequencies of the same OFDM symbol.
  • the domain location, the time domain orthogonal mask refers to mapping orthogonally processed reference signals to locations of different OFDM symbols in the same frequency domain.
  • the length of the orthogonal mask configured by the network device and the time/frequency domain information are fixed, so that the network device has poor flexibility in configuring the orthogonal mask for the terminal device.
  • the present application provides a communication method to improve the flexibility of configuring an orthogonal mask.
  • the present application provides a communication method, including: generating, by a network device, first indication information, where the first indication information is used to indicate that the network device configures a time-frequency domain of an orthogonal mask for the first terminal device. a mode and a length of the orthogonal mask, the orthogonal frequency mask of the orthogonal frequency mask comprising at least one of a frequency domain orthogonal mask and a time domain orthogonal mask; the network device to the first The terminal device sends the first indication information.
  • the network device can flexibly configure the orthogonal mask for the terminal device. Compared with the prior art, the network device configures a fixed orthogonal mask for the terminal device, which can improve the flexibility of configuring the orthogonal mask. Sex.
  • the network device generates first indication information, including: determining, by the network device, a time-frequency domain mode configured as an orthogonal mask of the first terminal device; a relationship between the control resource set and the second control resource set, determining a length of the orthogonal mask configured by the network device for the first terminal device, where the first control resource set is the network device a control resource set configured by a terminal device, where the second control resource set is a control resource set configured by the network device for the second terminal device, the first control resource set and the second control resource The set has an overlap; the network device generates the first indication information according to a time-frequency domain mode of the configured orthogonal mask and a length of the orthogonal mask.
  • the network device can be the first terminal device and the second device by using downlink signaling.
  • the terminal device configures a corresponding orthogonal mask mode and length to implement orthogonalization of each port reference signal.
  • the length of the orthogonal mask is a length of the time domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask, the length of the orthogonal mask The length of the frequency domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask The length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask; the network device according to the relationship between the first control resource set and the second control resource set Determining, by the network device, the length of the orthogonal mask configured by the first terminal device, where the network device, when the time-frequency domain mode of the orthogonal mask includes the time domain orthogonal mask And the
  • the determining, by the network device, the time-frequency domain mode of the orthogonal mask configured by the first terminal device includes: determining, by the network device, that the current channel environment meets the first condition
  • the time-frequency domain mode in which the network device configures the orthogonal mask of the first terminal device is a time domain orthogonal mask; and when the current channel environment meets the second condition, the network device determines that the network device is The time-frequency domain mode of the orthogonal mask configured by the first terminal device is a frequency domain orthogonal mask; and the network device determines, when the current channel environment satisfies the first condition and the second condition at the same time
  • the time-frequency domain mode in which the network device configures the orthogonal mask for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask.
  • the present application provides a communication method, including: receiving, by a first terminal device, first indication information that is sent by a network device, where the first indication information is used to indicate that the network device is configured for the first terminal device a time-frequency domain mode of the orthogonal mask and a length of the orthogonal mask, the time-frequency domain mode of the orthogonal mask comprising at least one of a frequency domain orthogonal mask and a time domain orthogonal mask;
  • the first terminal device acquires the orthogonal mask according to the first indication information, where the orthogonal mask is used to process the received reference signal, and acquire the first terminal device and the network device. Channel characteristics between.
  • the length of the orthogonal mask is a length of the time domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask, the length of the orthogonal mask The length of the frequency domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask The length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask; the length of the frequency domain orthogonal mask is according to the first control resource set and Determining, by the second control resource set, the first control resource set is a control resource set configured by the network device for the first terminal device, and the second control resource set is the network device a set of control resources configured by the
  • the present application provides a communication method, including: determining, by a network device, a control resource set configured for a terminal device; and determining, by the network device, an orthogonal mask configured for the terminal device according to the control resource set The time-frequency domain mode and the length of the orthogonal mask, the orthogonal frequency mask of the orthogonal frequency mask comprising at least one of a frequency domain orthogonal mask and a time domain orthogonal mask.
  • the network device can directly determine the orthogonal mask configured for the terminal device according to the configured control resource set, thereby improving the efficiency of the network device configuring the orthogonal mask for the terminal device.
  • the length of the orthogonal mask is a length of the time domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask
  • the length of the orthogonal mask The length of the frequency domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the application provides a communication method, including: acquiring, by a terminal device, a control resource set configured by the network device for the terminal device; and determining, by the terminal device, the network device as the terminal according to the control resource set a time-frequency domain mode of the orthogonal mask configured by the device and a length of the orthogonal mask, the time-frequency domain mode of the orthogonal mask including a frequency domain orthogonal mask and a time domain orthogonal mask at least one.
  • the terminal device can directly determine the orthogonal mask configured by the network device according to the control resource set, so that the network device does not need to additionally send the indication information of the orthogonal mask, thereby saving signaling overhead.
  • the length of the orthogonal mask is a length of the time domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask
  • the length of the orthogonal mask The length of the frequency domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the application provides a network device, including: a processor, configured to generate first indication information, where the first indication information is used to indicate that the network device configures an orthogonal mask for the first terminal device. a time-frequency domain mode and a length of the orthogonal mask, the orthogonal frequency mask of the orthogonal frequency mask comprising at least one of a frequency domain orthogonal mask and a time domain orthogonal mask; a transceiver for The first terminal device sends the first indication information.
  • the processor when the first indication information is generated, is specifically configured to: determine a time-frequency domain mode of an orthogonal mask configured for the first terminal device; according to the first control resource set Determining, by the relationship with the second set of control resources, a length of the orthogonal mask configured by the network device for the first terminal device, where the first set of control resources is that the network device is the first terminal device a set of control resources, where the second set of control resources is a set of control resources configured by the network device for the second terminal device, where the first set of control resources overlaps with the second set of control resources;
  • the first indication information is generated according to a time-frequency domain mode of the configured orthogonal mask and a length of the orthogonal mask.
  • the length of the orthogonal mask is a length of the time domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask, the length of the orthogonal mask The length of the frequency domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask The length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask; the processor is according to the first control resource set and the second control resource set And determining, when the length of the orthogonal mask configured by the network device is the first terminal device, when the time-frequency domain mode of the orthogonal mask includes the time-domain orthogonal mask And the number of the first orthogonal
  • the processor when determining, by the processor, the time-frequency domain mode of the orthogonal mask configured by the first terminal device, the processor is specifically configured to: when the current channel environment meets the first condition, determine The time-frequency domain mode in which the network device configures the orthogonal mask of the first terminal device is a time domain orthogonal mask; when the current channel environment satisfies the second condition, determining that the network device is the first terminal The time-frequency domain mode of the orthogonal mask configured by the device is a frequency domain orthogonal mask; when the current channel environment satisfies the first condition and the second condition, determining that the network device is the first terminal The time-frequency domain mode of the orthogonal mask configured by the device is a time domain orthogonal mask and a frequency domain orthogonal mask.
  • the application provides a first terminal device, including: a transceiver, configured to receive first indication information that is sent by a network device, where the first indication information is used to indicate that the network device is the first terminal a time-frequency domain mode of the orthogonal mask configured by the device and a length of the orthogonal mask, the time-frequency domain mode of the orthogonal mask including at least a frequency domain orthogonal mask and a time domain orthogonal mask a processor, configured to acquire the orthogonal mask according to the first indication information, where the orthogonal mask is used to process the received reference signal, and acquire the first terminal device and the Channel characteristics between network devices.
  • a transceiver configured to receive first indication information that is sent by a network device, where the first indication information is used to indicate that the network device is the first terminal a time-frequency domain mode of the orthogonal mask configured by the device and a length of the orthogonal mask, the time-frequency domain mode of the orthogonal mask including at least a frequency domain orthogonal mask and a time domain
  • the length of the orthogonal mask is a length of the time domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask, the length of the orthogonal mask The length of the frequency domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask The length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask; the length of the frequency domain orthogonal mask is according to the first control resource set and Determining, by the second control resource set, the first control resource set is a control resource set configured by the network device for the first terminal device, and the second control resource set is the network device a set of control resources configured by the
  • the application provides a network device, including: a processor, configured to determine a control resource set configured for a terminal device, and determine, according to the control resource set, an orthogonal mask configured for the terminal device a time-frequency domain mode and a length of the orthogonal mask, the orthogonal frequency mask of the orthogonal frequency mask comprising at least one of a frequency domain orthogonal mask and a time domain orthogonal mask; a transceiver for The terminal device sends indication information of a configuration resource set.
  • the length of the orthogonal mask is a length of the time domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask
  • the length of the orthogonal mask The length of the frequency domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the application provides a terminal device, including: a transceiver, configured to receive indication information of a control resource set sent by a network device, and a processor, configured to determine, according to the control resource set, the network device a time-frequency domain mode of the orthogonal mask configured by the terminal device and a length of the orthogonal mask, where the time-frequency domain mode of the orthogonal mask includes a frequency domain orthogonal mask and a time domain orthogonal mask At least one of them.
  • a terminal device including: a transceiver, configured to receive indication information of a control resource set sent by a network device, and a processor, configured to determine, according to the control resource set, the network device a time-frequency domain mode of the orthogonal mask configured by the terminal device and a length of the orthogonal mask, where the time-frequency domain mode of the orthogonal mask includes a frequency domain orthogonal mask and a time domain orthogonal mask At least one of them.
  • the length of the orthogonal mask is a length of the time domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask
  • the length of the orthogonal mask The length of the frequency domain orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the present application provides a readable storage medium comprising instructions which, when run on a communication device, cause the communication device to perform the method of any of the above aspects.
  • the present application provides a chip connected to a memory for reading and executing a software program stored in the memory to implement the method of any of the above aspects.
  • the present application provides a system, comprising the network device of the fifth aspect and the terminal device of the sixth aspect, or the system includes the network device of the seventh aspect and the terminal device of the eighth aspect.
  • a computer program comprising computer instructions that, when executed by a computer, cause the computer to perform the method of any of the above aspects.
  • the network device may determine the first indication information, and send the first indication information to the first terminal device, and the first indication information may instruct the network device to configure the orthogonal mask time-frequency domain for the terminal setting a mode and a length of an orthogonal mask, the time-frequency domain mode of the orthogonal mask comprising at least one of a frequency domain orthogonal mask and a time domain orthogonal mask; it can be seen that in the present application, the network device is flexible By configuring the orthogonal mask for the terminal device, the method and the device of the present application can improve the flexibility of configuring the orthogonal mask, as compared with the prior art, in which a fixed orthogonal mask is configured for the terminal device.
  • FIG. 1 is a schematic diagram of a time slot provided by an embodiment of the present application.
  • FIGS. 2a and 2b are schematic diagrams of a control resource set provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 4 and FIG. 5 are schematic flowcharts of a communication method according to an embodiment of the present application.
  • FIG. 7 are schematic diagrams of configuring an orthogonal mask according to an embodiment of the present application.
  • FIG. 10 and FIG. 11 are schematic flowcharts of a communication method according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • a base station (BS) device also referred to as a base station, is a device deployed in a wireless access network to provide wireless communication functions.
  • a device that provides a base station function in a 2G network includes a base transceiver station (BTS) and a base station controller (BSC), and the device that provides the base station function in the 3G network includes a Node B (English NodeB) and A radio network controller (RNC), which provides a base station function in a 4G network, includes an evolved NodeB (eNB).
  • a device that provides a base station function is an access point.
  • AP access point.
  • devices providing base station functions include a Node B (gNB) that continues to evolve, a transmission and reception point (TRP), or a transmission point (transmission point, TP).
  • gNB Node B
  • TRP transmission and reception point
  • TP transmission point
  • the TRP or TP may not include the baseband portion, only the radio frequency portion, and may also include the baseband portion and the radio frequency portion.
  • the terminal device is a user equipment (UE), and may be a mobile terminal device or a non-mobile terminal device.
  • the device is mainly used to receive or send business data.
  • User equipment can be distributed in the network.
  • User equipments have different names in different networks, such as: terminals, mobile stations, subscriber units, stations, cellular phones, personal digital assistants, wireless modems, wireless communication devices, handheld devices, knees.
  • the user equipment can communicate with one or more core networks via a radio access network (RAN) (access portion of the wireless communication network), such as exchanging voice and/or data with the radio access network.
  • RAN radio access network
  • a network-side device is a device located on the network side in a wireless communication network, and may be an access network element, such as a base station or a controller (if any), or may be a core network element or other network. yuan.
  • FIG. 3 shows a possible system network diagram of an embodiment of the present application.
  • the communication system of FIG. 3 may include a terminal device 10 and a base station 20.
  • the base station 20 is configured to provide communication services for the terminal device 10 and access the core network.
  • the terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the base station 20, thereby performing communication with the network.
  • the arrows shown in FIG. 3 may represent uplink/downlink transmissions by the wireless communication network between the terminal device 10 and the base station 20.
  • the communication system may be a new radio (NR) communication system, a long term evolution (LTE) system, or a long term evolution-advanced (LTE-A) system, or may be extended to Similar wireless communication systems, such as the 3rd generation partnership project (3gpp) related cellular systems.
  • NR new radio
  • LTE long term evolution
  • LTE-A long term evolution-advanced
  • FIG. 4 is a flowchart of a communication method provided by the present application.
  • the first terminal device in the process corresponds to the terminal device 10 in FIG. 3, and the network device may correspond to the base station 20 in FIG. 3, as shown in FIG. include:
  • Step S41 The network device generates first indication information, where the first indication information is used to indicate that the network device configures a time-frequency domain mode of the orthogonal mask and a length of the orthogonal mask for the first terminal device,
  • the time-frequency domain mode of the orthogonal mask includes at least one of a frequency domain orthogonal mask and a time domain orthogonal mask;
  • the network device determines a time-frequency domain mode in which an orthogonal mask can be configured for the first terminal device; the network device may be configured according to a relationship between the first control resource set and the second control resource set, Determining, by the network device, a length of an orthogonal mask configured by the first terminal device, where the first control resource set and the second control resource set overlap; the network device may be configured according to the orthogonal mask configured
  • the first indication information is generated by a time-frequency domain mode of the code and a length of the orthogonal mask.
  • Step S42 The network device sends the first indication information to the first terminal device.
  • the network device is configured to configure a first control resource set for the first terminal device, a second control resource set for the second terminal device, and a time-frequency resource of the first control resource set.
  • the time-frequency resources of the two control resource sets overlap, and the overlap may be partially overlapped.
  • the overlap may also be specifically overlapped, as shown in FIG. 2b.
  • the first terminal device may be a terminal device or a plurality of terminal devices.
  • the second terminal device may be a terminal device or multiple terminal devices.
  • the network device determines that the time-frequency domain mode of the orthogonal mask configured for the first terminal device is a time-domain orthogonal mask when the current channel environment satisfies the first condition, such as a low-speed channel environment. code.
  • the time-frequency domain mode of the orthogonal mask configured by the first terminal device is a frequency domain orthogonal mask
  • the first condition and the second condition at the same time for example, in a low-speed, low-frequency selective channel environment, determining that the first terminal device is configured with an orthogonal mask
  • the time-frequency domain mode is a time domain orthogonal mask and a frequency domain orthogonal mask.
  • the first orthogonal frequency division multiplexing (Orthogonal) occupied by the first control resource set of the first terminal device may be specifically Determining the length of the time domain orthogonal mask by the number of symbols and the number of OFDM symbols occupied by the second control resource set of the second terminal device, for example, the first control resource set occupies 3 OFDM symbols, When the second control resource set also occupies 3 OFDM symbols, the length of the time domain orthogonal mask can be configured to be 3. For another example, if the first control resource set occupies 3 OFDM symbols and the second control resource set occupies 2 OFDM symbols, the length of the time domain orthogonal mask can be configured to 2.
  • the network device when the network device configures the frequency domain orthogonal mask for the first terminal device, the network device may be configured to carry the reference signal according to the first control resource set or the second control resource set.
  • the number of resource units is determined by the length of the frequency domain orthogonal mask, or the length of the frequency domain orthogonal mask is determined according to the number of antenna ports used by the first terminal device and the second terminal device.
  • the determining manner of the time domain orthogonal mask length may be referred to only When the first terminal device configures the time domain orthogonal mask, the time domain orthogonal mask length is determined. For the determination manner of the frequency domain orthogonal mask length, the method for determining the frequency domain orthogonal mask length when the frequency domain orthogonal mask is configured for the first terminal device is also mentioned.
  • FIG. 5 is a flowchart of a communication method provided by the present application.
  • the terminal device in the process corresponds to the terminal device 10 in FIG. 3, and the network device may correspond to the base station 20 in FIG. As shown in Figure 5, it includes:
  • Step S51 The network device configures a control resource set for multiple terminal devices.
  • the configuration information of the control resource set may specifically include a frequency domain resource location, a starting OFDM symbol, a duration of an OFDM symbol, and a duration of the control resource set configured by the network device for the first terminal device.
  • Step S52 The network device determines an antenna port of each terminal device.
  • the network device may determine the antenna port of each terminal device according to the binding relationship between the control resource set of each terminal device and the antenna port.
  • the terminal device will receive downlink information in the corresponding antenna port.
  • the control resource set of UE0 is bound to port 1.
  • the antenna port of UE0 can be determined to be 1, and correspondingly, UE0 will be in antenna port 1. Receive downlink information.
  • the network device may separately send an indication information to each terminal device for indicating an antenna port used by each terminal device.
  • the network device may also determine the antenna port by the terminal device itself without sending the indication information of the antenna port to the terminal device.
  • the antenna port may be obtained according to the following formula:
  • n CCE,low represents the location of the first CCE in the control resource set of all CCEs carrying the DCI. Indicates the number of CCEs included in the current control resource set, and n RNTI is a label allocated by the base station to the UE. Indicates the number of control resources carrying DCI in CCE, and N port indicates the total number of candidate ports.
  • Step S53 When the network device determines that there are overlapping control resource sets of any two terminal devices, configure an orthogonal mask parameter for the terminal device with overlapping control resource sets, where the orthogonal mask parameters include orthogonal masks. Frequency domain mode and length, etc.
  • control resource set of UE0 and UE1 is set to overlap in the frequency domain, and the overlap may be partially overlapped or overlapped. Then, the following two scenarios are taken as an example in the time domain:
  • Scenario 1 Set the control resource set of UE0 and UE1 to completely overlap in the time domain.
  • the network device may simultaneously configure a time domain orthogonal mask, a frequency domain orthogonal mask, or a time domain orthogonal mask + a frequency domain orthogonal mask for UE0 and UE1.
  • the network device may configure a time domain orthogonal mask for UE0 and UE1 in a low-speed channel environment, and configure a frequency domain orthogonal mask for UE0 and UE1 in a low-frequency selective channel environment, at a low speed, In the low frequency selective channel environment, a time domain orthogonal mask + a frequency domain orthogonal mask can be configured for UE0 and UE1.
  • the length of the orthogonal mask may be determined by using the following manner. As shown in FIG. 6, it is assumed that the duration of the control resource set is 3 OFDM symbols. Then, the length of the time domain orthogonal mask configured by the network device for UE0 and UE1 may be specifically 3.
  • the network device needs to determine the orthogonal mask corresponding to each of UE0 and UE1, and the process may be: the antenna port is bound to a set of preset orthogonal masks, and the network device may be specifically configured according to the antenna port used by UE0. And determining, from the preset set of orthogonal masks, an orthogonal mask corresponding to UE0. Similarly, the network device may determine the orthogonal mask corresponding to the UE1 from the preset set of orthogonal masks according to the antenna port used by the UE1.
  • the reference signal of UE0 can be processed by using c0
  • the reference signal of UE1 is processed by using c1
  • the reference signal processed by the orthogonal mask is carried by resource elements of different OFDM at the same frequency domain position.
  • the length of the frequency domain orthogonal mask may be determined according to the number of resource elements in the resource element group in the control resource set for carrying the reference signal. As shown in FIG. 7, the number of resource elements used to carry the reference signal in a resource element group in the control resource set is three, and then the length of the frequency domain orthogonal mask may be determined to be three. In this application, the length of the frequency domain orthogonal mask may be determined according to the number of antenna ports used by UE0 and UE1. For example, the number of antenna ports used by UE0 and UE1 is 2, then the frequency may be determined. The length of the domain orthogonal code is 2.
  • the reference signals in the two adjacent resource element groups need to be jointly processed.
  • the process of acquiring the frequency domain orthogonal mask and the reference signal according to the frequency domain orthogonal mask is similar to the processing of the time domain orthogonal mask, and will not be described here. The difference is that the resource elements in different frequency domain locations in the same OFDM position are used to carry the reference signal processed by the frequency domain orthogonal mask.
  • the process of determining the length of the time domain orthogonal mask and the length of the frequency domain orthogonal mask, and the foregoing is only the terminal.
  • the process of configuring the time domain orthogonal mask and the frequency domain orthogonal mask to determine the orthogonal mask length is similar, and is not described here.
  • FIG 8 it can be seen that in the control resource set of UE0 and UE1, there are 9 resource elements for carrying the reference signal after the orthogonal mask processing, and at this time, the orthogonal complex of 9 ports can be realized at most. use. During processing, the nine ports can be divided into three groups, each group including three ports.
  • the orthogonality between the three sets of reference signals can be realized by the frequency domain orthogonal mask of length 3, and the length is 3
  • the time domain orthogonal mask implements internal orthogonality of each group of reference signals; or, the orthogonality between the three sets of reference signals can be realized by a time domain orthogonal mask of length 3, and the frequency domain of length 3 is positive
  • the intersection mask implements internal orthogonality of each set of reference signals.
  • the frequency domain orthogonal mask and the time domain orthogonal mask configured for each port can be as follows:
  • the element corresponding to the a row and the b column represents that the parameter signal is sent on the bth resource in the ath frequency domain, and the a and b are both greater than or equal to 1, less than or equal to 3. Integer.
  • Scenario 2 Setting the control resource set of UE0 and UE1 to partially overlap in the time domain
  • the network device may configure a time domain orthogonal mask, a frequency domain orthogonal mask or a time domain orthogonal mask + a frequency domain orthogonal mask for UE0 and UE1, and a length of the orthogonal mask.
  • the length of the time domain orthogonal mask may be determined according to the minimum value of the number of OFDM symbols occupied by the control resource set of UE0 and UE1. For example, as shown in FIG. 9a, the control resource set of UE0 occupies 3 OFDM symbols, and the control resource set of UE1 occupies 2 OFDM symbols, then the length of the orthogonal mask can be set to 3.
  • the process of determining the length of the frequency domain orthogonal mask is similar to that of the foregoing scenario 1, and details are not described herein again.
  • the frequency domain orthogonal mask + time domain orthogonal mask is configured for UE0 and UE1
  • the control resource set of UE0 and UE1 overlaps in time
  • the overlapping area is greater than 1 OFDM.
  • the time domain orthogonal mask is configured for UE0 and UE1. If the overlapping area of the control resource set of UE0 and UE1 in time is equal to 1 OFDM symbol, the frequency domain orthogonal mask is configured for UE0 and UE1.
  • the length of the time domain orthogonal mask, the length of the frequency domain orthogonal mask, and the length of the time domain orthogonal mask + the frequency domain orthogonal mask may also be collectively referred to as the length of the orthogonal mask.
  • the time domain orthogonal mask may be referred to as an OCC (orthogonal cover code), the time domain orthogonal mask may be referred to as T-OCC (Time OCC), and the frequency domain orthogonal mask may be referred to as F-OCC (Frequency OCC).
  • Step S54 The network device sends the first indication information to the terminal device, where the first indication information is used to indicate the orthogonal mask parameter configured by the network device for the terminal device whose control resources overlap.
  • the first indication information may be specifically orthogonal mask configuration signaling.
  • the orthogonal mask configuration information may be as follows:
  • the UE uses orthogonal masks of length 3 on OFDM1 and 2 respectively to perform frequency domain orthogonal mask processing on the reference signals received at preset frequency domain positions.
  • the UE uses orthogonal masks of length 3 on OFDM1 and 2 respectively to perform frequency domain orthogonal mask processing on the reference signals received at preset frequency domain positions.
  • the configuration number received by the terminal device is 0, then using the orthogonal mask of length 2 on OFDM1 and 2, the reference signal received at a preset frequency domain position is performed. Time domain orthogonal mask processing to obtain channel estimation.
  • the network device can configure a corresponding orthogonal mask mode and length for each UE to implement orthogonalization of each port reference signal.
  • FIG. 10 is a flowchart of a communication method provided by the present application.
  • the terminal device in the process corresponds to the terminal device 10 in FIG. 3, and the network device may correspond to the base station 20 in FIG.
  • Step S101 The network device determines a control resource set configured for the terminal device.
  • the configuration information of the control resource set may include a frequency domain resource location, a starting OFDM symbol, a duration of an OFDM symbol, a resource unit cluster size, and a PDCCH transmission mode, where the network device configures a control resource set for the terminal device, and the like. parameter.
  • Step S102 The network device determines, according to the control resource resource set, a time-frequency domain mode and a length of an orthogonal mask that are orthogonal masks configured by the terminal device.
  • the binding relationship between the control resource set and the orthogonal mask parameter may be stored in the network device, and therefore, the orthogonal mask configured for the terminal device may be determined according to the control resource set configured for the terminal device.
  • the orthogonal mask parameters may include a time-frequency domain pattern of orthogonal masks and a length of an orthogonal mask.
  • the frequency domain orthogonal mask is used, and the length is equal to the resource used for carrying the reference signal in the preset one REG.
  • the number of elements when the network device configures the control resource set for the UE to occupy 2 OFDM symbols, the time domain orthogonal mask is adopted, and the orthogonal mask is a preset orthogonal mask group of length 2, and the UE The orthogonal mask corresponding to the port used; when the network device configures the control resource set for the UE to occupy 3 OFDM symbols, the time domain orthogonal mask is adopted, and the orthogonal mask is a preset positive length of 3 In the cross-mask group, the orthogonal mask corresponding to the port used by the UE; the reference signal in the control resource set only in the first two OFDM symbols is processed by time-domain orthogonal mask, orthogonal The mask is the orthogonal mask corresponding to the port used by the UE in the prese
  • the length of the orthogonal mask is the time domain. a length of the orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask, the length of the orthogonal mask is the a length of the frequency domain orthogonal mask; when the time-frequency domain mode in which the network device configures the orthogonal mask for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask, The length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the network device can determine the time-frequency domain mode and length of the orthogonal mask configured for the terminal device according to the control resource set, and the processing procedure is simple and the processing rate is fast.
  • Figure 11 is a flowchart of a communication method provided by the present application.
  • the terminal device in the process corresponds to the terminal device 10 in Figure 3, and the network device may correspond to the base station 20 in Figure 3, as shown in Figure 11, including:
  • Step S111 The terminal device acquires a control resource set configured for the network device as the terminal device.
  • the terminal device may specifically obtain, from the network device, a set of control resources configured by the network device.
  • Step S112 The terminal device determines, according to the control resource set configured by the network device, the time-frequency domain mode and the length of the orthogonal mask of the orthogonal mask configured by the network device.
  • the length of the orthogonal mask is the time domain. a length of the orthogonal mask; when the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a frequency domain orthogonal mask, the length of the orthogonal mask is the a length of the frequency domain orthogonal mask; when the time-frequency domain mode in which the network device configures the orthogonal mask for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask, The length of the orthogonal mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the terminal device can obtain the time-frequency domain mode and length of the orthogonal mask configured by the network device for the terminal device by controlling the resource set, thereby eliminating the need for additional signaling for indication, and saving signaling overhead.
  • FIG. 12 is a schematic diagram showing a possible structure of a base station involved in the foregoing embodiment of the present application.
  • the base station may be the network device in FIG. 4, FIG. 5, FIG. 10, and FIG.
  • the base station includes a transceiver 101 and a controller/processor 102.
  • the transceiver 101 can be used to support the base station to send and receive information between the base station and the terminal device in the foregoing embodiment, and to support radio communication between the base station and the core network device.
  • the controller/processor 102 is operative to perform various functions for communicating with terminal devices and core network devices.
  • On the uplink an uplink signal from the terminal device is received via an antenna, demodulated by the transceiver 101, and further processed by the controller/processor 102 to recover the service data and signaling information transmitted by the terminal device. .
  • On the downlink traffic data and signaling messages are processed by controller/processor 102 and mediated by transceiver 101 to generate downlink signals for transmission to the UE via the antenna.
  • the controller/processor 102 is further configured to perform the communication method as described in the above embodiments, such as determining the first indication information.
  • the controller/processor 102 is also operative to perform the processes involved in the base station of FIG. 4, FIG. 5, FIG. 10, or FIG. 11 and/or other processes for the techniques described herein.
  • the base station can also include a memory 103 that can be used to store program codes and data for the base station.
  • the base station may further include a communication unit 104 for supporting
  • Figure 12 only shows a simplified design of the base station.
  • the base station may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the present application are within the scope of the present application.
  • FIG. 13 is a simplified schematic diagram showing a possible design structure of a terminal device according to an embodiment of the present application, which may be in the terminal device shown in FIG. 4, FIG. 5, FIG. 10, and FIG. One.
  • the terminal device includes a transceiver 111, a controller/processor 112, and may further include a memory 113 and a modem processor 114.
  • the transceiver 111 conditions (e.g., analog conversion, filtering, amplifying, upconverting, etc.) the output samples and generates an uplink signal that is transmitted via an antenna to the base station described in the above embodiments.
  • the antenna receives the downlink signal transmitted by the base station in the above embodiment.
  • Transceiver 111 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the signals received from the antenna and provides input samples.
  • encoder 1141 receives the traffic data and signaling messages to be transmitted on the uplink and processes (e.g., formats, codes, and interleaves) the traffic data and signaling messages.
  • Modulator 1142 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples.
  • the decoder 1143 processes (e.g., deinterleaves and decodes) the symbol estimate and provides decoded data and signaling messages that are sent to the terminal device.
  • Demodulator 1144 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • Encoder 1141, modulator 1142, decoder 1143, and demodulator 1144 may be implemented by a composite modem processor 114. These units are processed according to the wireless technology employed by the radio access network (eg, access technologies for LTE and other evolved systems).
  • the controller/processor 112 controls and manages the actions of the terminal device for performing the processing performed by the terminal device in the above embodiment.
  • the terminal device acquires a control resource set configured by the network device for the terminal device, and determines, according to the control resource set configured by the network device for the terminal device, the time-frequency domain mode and the orthogonal mask of the network device device configured with the orthogonal mask for the terminal device.
  • the length of the code As an example, the controller/processor 112 can be used to support the terminal device to perform the content of the terminal device involved in FIG. 4, FIG. 5 or FIG.
  • the memory 113 is used to store program codes and data for the terminal device.
  • the embodiment of the present application further provides a communication device 140, as shown in FIG. 14, comprising:
  • the processing unit 141 is configured to generate first indication information, where the first indication information is used to indicate a time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device, and a length of the orthogonal mask.
  • the time-frequency domain mode of the orthogonal mask includes at least one of a frequency domain orthogonal mask and a time domain orthogonal mask;
  • the transceiver unit 142 is configured to send the first indication information to the first terminal device.
  • the processing unit 141 is specifically configured to: determine a time-frequency domain mode of an orthogonal mask configured for the first terminal device; and according to the first control resource set and the second Controlling a relationship of the resource set, determining a length of the orthogonal mask configured by the network device for the first terminal device, where the first control resource set is a control configured by the network device for the first terminal device a second set of control resources, where the set of second control resources is a set of control resources configured by the network device for the second terminal device, where the first set of control resources overlaps with the second set of control resources;
  • the first indication information is generated by a time-frequency domain mode of the orthogonal mask and a length of the orthogonal mask.
  • the length of the orthogonal mask is the time domain orthogonal a length of the mask
  • the length of the orthogonal mask is the frequency domain a length of the orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the orthogonal The length of the mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the processing unit 141 is configured to: when determining, according to the relationship between the first control resource set and the second control resource set, the length of the orthogonal mask configured by the network device
  • the time-frequency domain mode of the orthogonal mask includes the number of first orthogonal frequency division multiplexing symbols occupied by the first control resource set and the second control resource set according to the time domain orthogonal mask Taking the number of second orthogonal frequency division multiplexing symbols to determine the length of the time domain orthogonal mask; when the time-frequency domain mode of the orthogonal mask includes the frequency domain orthogonal mask, according to Determining, by the first control resource set or the number of resource units in the resource element group in the second control resource set, for carrying the reference signal, determining a length of the frequency domain orthogonal mask.
  • the processing unit 141 is further configured to: when the time-frequency domain mode of the orthogonal mask includes the frequency domain orthogonal mask, according to the first terminal device and the second terminal device The length of the frequency domain orthogonal mask is determined using the number of antenna ports.
  • the processing unit 141 when the determining, by the processing unit 141, the time-frequency domain mode of the orthogonal mask configured by the first terminal device, the processing unit 141 is specifically configured to: when the current channel environment meets the first condition, determine that the network device is The time-frequency domain mode of the orthogonal mask configured by the first terminal device is a time domain orthogonal mask; when the current channel environment satisfies the second condition, determining that the network device is configured for the first terminal device The time-frequency domain mode of the cross-mask is a frequency-domain orthogonal mask; when the current channel environment satisfies the first condition and the second condition, determining that the network device is configured for the first terminal device The time-frequency domain mode of the cross mask is a time domain orthogonal mask and a frequency domain orthogonal mask.
  • the present application further provides another communication device 140, including:
  • the transceiver unit 142 is configured to receive first indication information that is sent by the network device, where the first indication information is used to indicate that the network device configures a time-frequency domain mode of the orthogonal mask for the first terminal device, and the a length of the orthogonal mask, the time-frequency domain mode of the orthogonal mask comprising at least one of a frequency domain orthogonal mask and a time domain orthogonal mask;
  • the processing unit 141 is configured to acquire, according to the first indication information, the orthogonal mask, where the orthogonal mask is used to process the received reference signal, and acquire the first terminal device and the network. Channel characteristics between devices.
  • the length of the orthogonal mask is the time domain orthogonal a length of the mask
  • the length of the orthogonal mask is the frequency domain a length of the orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the orthogonal The length of the mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask
  • the length of the frequency domain orthogonal mask is determined according to the relationship between the first control resource set and the second control resource set, where the first control resource set is configured by the network device for the first terminal device a set of control resources, where the second set of control resources is a set of control resources configured by the network device for the second terminal device;
  • the length of the time domain orthogonal mask is determined according to the number of resource units used to carry the reference signal in one of the first control resource set or the second control resource set, or The length of the time domain orthogonal mask is determined according to the number of antenna ports used by the first terminal device and the second terminal device.
  • the present application further provides a communication device 140, including:
  • the processing unit 141 is configured to determine a control resource set configured for the terminal device, and according to the control resource set,
  • the time-frequency domain mode of the orthogonal mask including a frequency domain orthogonal mask and a time domain orthogonal At least one of the masks;
  • the transceiver unit 142 is configured to send, to the terminal device, indication information of a configuration resource set.
  • the length of the orthogonal mask is the time domain orthogonal a length of the mask
  • the length of the orthogonal mask is the frequency domain a length of the orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the orthogonal The length of the mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • the present application further provides a communication device 140, including:
  • the transceiver unit 142 is configured to receive indication information of a control resource set sent by the network device.
  • the processing unit 141 is configured to determine, according to the control resource set, a time-frequency domain mode of the orthogonal mask configured by the network device for the terminal device, and a length of the orthogonal mask, where the orthogonal mask
  • the time-frequency domain mode of the code includes at least one of a frequency domain orthogonal mask and a time domain orthogonal mask.
  • the length of the orthogonal mask is the time domain orthogonal a length of the mask
  • the length of the orthogonal mask is the frequency domain a length of the orthogonal mask
  • the time-frequency domain mode of the orthogonal mask configured by the network device for the first terminal device is a time domain orthogonal mask and a frequency domain orthogonal mask
  • the orthogonal The length of the mask is the length of the frequency domain orthogonal mask and the length of the time domain orthogonal mask.
  • Embodiments of the present application also provide a readable storage medium comprising instructions that, when executed on a communication device, cause the communication device to perform the communication method described above.
  • Embodiments of the present application also provide a chip connected to a memory for reading and executing a software program stored in the memory to implement the above communication method.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center via wired (eg, coaxial cable, fiber optic, data subscriber line) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium such as a DVD, or a semiconductor medium such as a solid state hard disk.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

L'invention concerne un procédé et un dispositif de communication. Le procédé consiste à : générer des premières informations d'indication, les premières informations d'indication étant destinées à indiquer un mode de domaine temps-fréquence d'un code de couverture orthogonal configuré pour un premier dispositif terminal et à indiquer la longueur du code de couverture orthogonal, et le mode de domaine temps-fréquence du code de couverture orthogonal comprend au moins un code parmi un code de couverture orthogonal dans le domaine fréquentiel et un code de couverture orthogonal dans le domaine temporel ; et envoyer les premières informations d'indication au premier dispositif terminal. Le procédé et le dispositif de la présente invention peuvent permettre à un dispositif de réseau d'être plus flexible dans la configuration de signaux de référence pour le dispositif terminal.
PCT/CN2018/104427 2017-09-08 2018-09-06 Procédé et dispositif de communication Ceased WO2019047902A1 (fr)

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