WO2019137299A1 - Procédé de communication et dispositif de communication - Google Patents

Procédé de communication et dispositif de communication Download PDF

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Publication number
WO2019137299A1
WO2019137299A1 PCT/CN2019/070334 CN2019070334W WO2019137299A1 WO 2019137299 A1 WO2019137299 A1 WO 2019137299A1 CN 2019070334 W CN2019070334 W CN 2019070334W WO 2019137299 A1 WO2019137299 A1 WO 2019137299A1
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WIPO (PCT)
Prior art keywords
mapping
resource
type
virtual
unit
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PCT/CN2019/070334
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English (en)
Chinese (zh)
Inventor
葛士斌
刘永
毕晓艳
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华为技术有限公司
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Publication of WO2019137299A1 publication Critical patent/WO2019137299A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies

Definitions

  • the present application relates to the field of communications, and in particular, to a method and a communication device for communication.
  • the modulated symbols need to be processed by resource unit mapping and then mapped to time-frequency resources for transmission.
  • a transmitting device maps data to a physical resource block (PRB) during resource element mapping processing.
  • PRB physical resource block
  • PRB physical resource block
  • NR new radio
  • resource unit mapping is to map data to a virtual resource block (VRB).
  • the present application provides a method and communication device for communication that is capable of providing a resource unit mapping scheme for different data allocation types.
  • a method of communication comprising: a communication device determining a resource allocation type, the resource allocation type being one of a first type and a second type; the communication device according to the resource allocation
  • the resource mapping manner corresponding to the type is in communication with the peer device, where the resource mapping manner corresponding to the first type and the second type is different.
  • the embodiment of the present application performs data mapping according to the resource mapping manner corresponding to the resource allocation type, and can provide a resource unit mapping scheme for different data allocation types, which is helpful for solving the NR system directly mapping data to the VRB without considering the resource allocation type. The problem.
  • the resource allocation manners of the first type and the second type are different, wherein the first type uses a bitmap allocation resource, and the second type Resources are allocated by specifying the starting position of the resource and the number of consecutive resource blocks.
  • the resource allocation manners corresponding to the first type and the second type are different, wherein the first type may be type 0 in the NR, and the method of allocating resources by using a bitmap; It is type 1 in NR, which allocates resources by specifying the starting position of resources and the number of consecutive resource blocks.
  • the bitmap used by the first type of allocated resources may correspond to the number of resource block groups. For example, if the resource set available to the terminal device includes six resource block groups, the bitmap may be 6 bits, one bit corresponding to one bit.
  • a resource block group when a bit of a bit has a value of 1, may indicate that the resource block group corresponding to the bit is allocated to the terminal device, and when the value of a bit is 0, the resource block group corresponding to the bit may be Assigned to the terminal device.
  • the network device may send indication information to the terminal device, where the indication information indicates the resource allocation type, and the terminal device determines the resource allocation type according to the indication information.
  • the network device indicates the resource allocation type through radio resource control (RRC) signaling, or the network device may indicate the current downlink control information (DCI) by using the downlink control information (DCI).
  • RRC radio resource control
  • DCI current downlink control information
  • the resource allocation type is either the first type or the second type.
  • the communications device communicates with the peer device according to the resource mapping manner corresponding to the resource allocation type, including:
  • the communication device communicates with the peer device by using a mapping manner of data mapping to a physical resource;
  • the communication device communicates with the peer device by using a mapping manner of data mapping to a virtual resource.
  • the communications device communicates with the peer device by using a mapping manner of data mapping to a virtual resource, including:
  • the communication device When transmitting data, the communication device maps data to the virtual resource and maps the virtual resource to a physical resource, and the communication device uses the physical resource to send the data to the opposite end;
  • the communication device When receiving data, the communication device receives data through a physical resource corresponding to the virtual resource.
  • the embodiment of the present application can flexibly perform data mapping according to the resource mapping manner corresponding to the resource allocation type, which is helpful for solving the NR system without considering the resource allocation type, but mapping the data into the VRB in the resource unit mapping. The problem.
  • a method of communication comprising: the communication device determining that the resource allocation type is the first type,
  • the communication device communicates with the peer device by using the virtual resource corresponding to the resource allocation information.
  • the communication device in the embodiment of the present application may be a network device or a terminal device.
  • the peer device that communicates with the communication device is a terminal device; when the communication device is a terminal device, the peer device that communicates with the communication device is a network device, and the embodiment of the present application Not limited to this.
  • the allocation information includes a bitmap for indicating a virtual resource block group.
  • the network device may send the bitmap corresponding to the number of resource block groups to the terminal device to allocate the virtual resource to the terminal device.
  • the resource block group is a virtual resource block group.
  • the terminal device can determine the allocated virtual resource according to the bitmap.
  • the bitmap may be 6 bits, where one bit corresponds to one resource block group.
  • the bit corresponding to the bit may be represented.
  • the resource block group is allocated to the terminal device.
  • a bit bit takes a value of 0, it can indicate that the resource block group corresponding to the bit is not allocated to the terminal device.
  • the embodiment of the present application can allocate a virtual resource when the resource allocation type is the first type, and in this way, the mapping manner of the data mapping to the virtual resource can be matched.
  • the communications device is a network device
  • the peer device is a terminal device
  • the method further includes:
  • the network device sends, to the terminal device, mapping indication information indicating a mapping relationship between the virtual resource and the physical resource, where the mapping relationship between the virtual resource and the physical resource is a one-to-one mapping relationship or an interlaced mapping relationship.
  • the communication device communicates with the peer device by using the virtual resource corresponding to the resource allocation information, including:
  • the network device When the downlink data is sent, the network device performs mapping of the virtual resource to the physical resource according to a mapping relationship between the virtual resource and the physical resource, and sends data to the terminal device by using the physical resource; or ,
  • the communication device is a terminal device
  • the peer device is a network device
  • the method further includes:
  • the terminal device receives, by the network device, mapping indication information indicating a mapping relationship between the virtual resource and the physical resource, where the mapping relationship between the virtual resource and the physical resource is a one-to-one mapping relationship or an interlaced mapping relationship.
  • the communication device communicates with the peer device by using the virtual resource corresponding to the resource allocation information, including:
  • the terminal device When transmitting the uplink data, the terminal device performs mapping between the virtual resource and the physical resource according to a mapping relationship between the virtual resource and the physical resource, and sends data to the network device by using the physical resource.
  • the mapping indication information is mapping signaling of a virtual resource block to a physical resource block.
  • the embodiment of the present application can use an existing signaling to perform an indication of a mapping relationship between a physical resource and a virtual resource, and can be compatible with the prior art and reduce implementation complexity.
  • the communication device uses the virtual resource allocated by the resource allocation information to communicate with the peer device, including:
  • the communication device performs mapping between the virtual resource mapping and physical resources according to a preset mapping relationship.
  • the mapping relationship between the physical resource and the virtual resource is determined according to the preset mapping relationship, and no signaling indication is needed, which can save signaling overhead and improve network performance.
  • the preset mapping relationship is a one-to-one mapping relationship between the virtual resource and the physical resource or a relationship between the virtual resource and the physical resource.
  • the method further includes:
  • the communication device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, and the size of the mapping unit represents the granularity of the mapping between the virtual resource and the physical resource.
  • the mapping unit may be a virtual resource block to physical resource block interleaving (VRB-to-PRB-interleaver) size, and may represent a granularity representation mapping between a virtual resource and a physical resource.
  • the minimum resource unit may also be referred to as a resource block binding set, for example, 2 VRBs or 4 VRBs, etc., and the embodiment of the present application is not limited thereto.
  • the network side may configure, by the RRC, a plurality of sets of bandwidth part (BWP) parameters, where each group of parameters includes a starting RB, a length and a subcarrier spacing of the BWP; and then the network side may be activated by the DCI.
  • BWP bandwidth part
  • the resources scheduled by the network side to the terminal device may be sub-bands in the active BWP. Therefore, the foregoing set of available virtual resources of the terminal device may be one of the plurality of BWPs, or a part of the frequency band of the BWP, and may correspond to a single scheduled resource, for example, multiple sub-bands, and the embodiment of the present application is not limited thereto. .
  • the bandwidth portion may be understood as a continuous frequency band, where the frequency band includes at least one consecutive sub-band, and each bandwidth portion may correspond to a set of system parameters including, for example, but not limited to, sub- Subcarrier spacing and Cyclic Prefix (CP), etc., different bandwidth parts can correspond to different system parameters.
  • TTI Transmission Time Interval
  • the bandwidth portion can be referred to the prior art, such as but not limited to various proposals for NR. As the technology continues to evolve, the above definitions are subject to change.
  • the set of virtual resources (for example, taking BWP as an example) contains an integer multiple of the mapping unit (for example, VRB-to-PRB-interleaver), when mapping from VRB to PRB, The virtual resource set cannot divide the mapping unit, and there are some residual RBs.
  • the two ends of the sending and receiving may use different mapping behaviors to map virtual resources to physical resources.
  • the mapping between the virtual resource and the physical resource may be performed according to the size of the set of the virtual resource and the size of the mapping unit, so that both ends of the transmitting and receiving can uniformly use the same mapping behavior, which can solve the above problem.
  • the method further includes:
  • the network device configures, for the terminal device, a set of the virtual resources whose size is an integer multiple of the mapping unit,
  • the communication device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, including:
  • the communication device performs an interlace mapping between the virtual resource and the physical resource according to a size of the set of the virtual resources and a size of the mapping unit.
  • the set of virtual resources directly configured by the network device for the terminal device is an integer multiple of the mapping unit, which solves the problem that the two cannot be divisible.
  • the mapping between the virtual resource and the physical resource may be an interlaced mapping or a one-to-one mapping.
  • the embodiment of the present application is not limited thereto.
  • the communications device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, including: the set of the virtual resources cannot be Dividing the mapping unit,
  • the communication device performs a one-to-one mapping between the virtual resource and the physical resource
  • the communication device performs a one-to-one mapping between the virtual resource and the physical resource remaining after removing the largest integer multiple of the mapping unit in the virtual resource set, where the maximum integer multiples of the mapping unit virtual resources and physical An interleaving mapping of resources, where the interleaving unit in the interleaving mapping includes the largest integer multiple of the mapping unit; or
  • the communication device performs an interlace mapping between the virtual resource and the physical resource, where the interleaving unit in the interlace mapping includes the largest integer multiple of the mapping unit and a remainder unit, where the remainder unit includes Deleting the virtual resource remaining after the largest integer multiple of the mapping unit in the virtual resource set.
  • the set of virtual resources includes resources of a whole bandwidth segment or resources of a single scheduling.
  • the first type is type 0, and the second type is type 1.
  • a method of communicating comprising:
  • the communication device determines, according to the first parameter used to indicate the number of codewords, the number of bits of the relevant parameter of the transport block corresponding to the codeword in the downlink control information DCI, where the relevant parameters of the transport block include at least one of the following: Modulation coding mode MCS, new data indication NDI and redundancy version number RV;
  • the communication device transmits the DCI or detects the DCI.
  • the first parameter is not configured or the value of the first parameter indicative of one code word
  • in the first MCS DCI is N 1-bit
  • the second MCS is 0 bits, and N 1 is an integer greater than or equal to 1; or, the first NDI in the DCI is M 1 bit, the second NDI is 0 bits, and M 1 is an integer greater than or equal to 1;
  • the first RV in the DCI is Z 1 bit, the second RV is 0 bit, and Z 1 is an integer greater than or equal to 1.
  • the value of the first signaling indicates two codewords
  • the first MCS in the DCI is N 1 bit
  • the second MCS is N 2 bits
  • N 1 and N 2 are integers greater than or equal to 1
  • the first NDI in the DCI is M 1 bit
  • the two NDIs are M 2 bits, and M 1 and M 2 are integers greater than or equal to 1
  • the first RV in the DCI is Z 1 bit
  • the second RV is Z 2 bits
  • Z 1 and Z 2 are greater than Or an integer equal to 1.
  • the first MCS, the first NDI, and the first RV are related parameters of a first transport block corresponding to the first codeword;
  • the second MCS, the second NDI, and the second RV are related parameters of the second transport block corresponding to the second codeword;
  • the data that can be transmitted according to the first parameter is one codeword
  • at least one of the related parameters of the other transport block is set to 0 bits, reducing the overhead of the relevant parameters of the transport block in the DCI.
  • a fourth aspect provides a method of communication, the method comprising the communication device determining a size of a set of virtual resources available to the terminal device and a size of the mapping unit,
  • the communication device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, where the size of the mapping unit indicates the granularity of the mapping between the virtual resource and the physical resource.
  • the method further includes:
  • the network device configures, for the terminal device, a set of the virtual resources whose size is an integer multiple of the mapping unit,
  • the communication device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, including:
  • the communication device performs an interlace mapping between the virtual resource and the physical resource according to a size of the set of the virtual resources and a size of the mapping unit.
  • the communications device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, including: the virtual resource The set cannot be divisible by the mapping unit.
  • the communication device performs a one-to-one mapping between the virtual resource and the physical resource
  • the communication device performs a one-to-one mapping between the virtual resource and the physical resource remaining after removing the largest integer multiple of the mapping unit in the virtual resource set, where the maximum integer multiples of the mapping unit virtual resources and physical An interleaving mapping of resources, where the interleaving unit in the interleaving mapping includes the largest integer multiple of the mapping unit; or
  • the communication device performs an interlace mapping between the virtual resource and the physical resource, where the interleaving unit in the interlace mapping includes the largest integer multiple of the mapping unit and a remainder unit, where the remainder unit includes Deleting the virtual resource remaining after the largest integer multiple of the mapping unit in the virtual resource set.
  • the set of the virtual resources includes resources of the entire bandwidth segment or resources of a single scheduling.
  • the embodiment of the present application can perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resource and the size of the mapping unit, so that both ends of the transmitting and receiving can uniformly use the same mapping behavior.
  • a communication device comprising respective modules or units for performing the methods of the first aspect to the fourth aspect or the first aspect to the fourth aspect of the possible implementation.
  • the communication device is a network device.
  • the communication device is a terminal device.
  • a communication device including a transceiver, a processor, and a memory.
  • the processor is for controlling a transceiver transceiver signal for storing a computer program for calling and running the computer program from the memory, such that the communication device performs the first to fourth aspects or the first aspect to the first A method in any of the four possible implementations.
  • the communication device is a network device.
  • the communication device is a terminal device.
  • a computer readable medium having stored thereon a computer program, the computer program being executed by a computer to implement any of the first to fourth aspects or any of the first to fourth aspects The method in .
  • a computer program product is provided, the computer program product being executed by a computer to implement the method of any of the first aspect to the fourth aspect or the first aspect to the fourth aspect.
  • a processing apparatus including a processor and an interface
  • the foregoing interface may further complete the data interaction process by using a transceiver.
  • the processing device in the foregoing ninth aspect may be a chip, and the processor may be implemented by using hardware or by software.
  • the processor may be a logic circuit, an integrated circuit, or the like;
  • the processor can be a general purpose processor implemented by reading software code stored in a memory, which can be integrated in the processor and can exist independently of the processor.
  • FIG. 1 is a schematic diagram of a scenario of a communication system applicable to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a data processing procedure in accordance with an embodiment of the present application.
  • FIG. 3 is a schematic flow diagram of a method of communication in accordance with one embodiment of the present application.
  • FIG. 4 is a schematic flow diagram of a method of communication in accordance with one embodiment of the present application.
  • FIG. 5 is a schematic flow chart of a method of communication according to another embodiment of the present application.
  • FIG. 6 is a schematic flow chart of a method of communication according to another embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a network device in accordance with one embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the embodiments of the present application are applicable to various communication systems, and therefore, the following description is not limited to a specific communication system.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • System general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi), and next-generation communication systems
  • the fifth generation (5th generation, 5G) communication system for example, a new radio (NR) system.
  • the network device may be a global system of mobile communication (GSM) or a base transceiver station (BTS) in code division multiple access (CDMA), or may be a broadband A base station (nodeB, NB) in a code division multiple access (WCDMA), or an evolved base station (eNB/eNodeB) in long term evolution (LTE), or a relay station or an access point, or a network side device in a future 5G network, for example, a transmission point (TRP or TP) in an NR system, a base station (gNB) in an NR system, a radio unit in an NR system, such as a remote radio unit One or a group of base stations (including multiple antenna panels) in a 5G system, etc.
  • Different network devices may be located in the same cell or in different cells, and are not limited herein.
  • the gNB may include a centralized unit (CU) and a distributed unit (DU).
  • the gNB may also include a radio unit (RU).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU implements radio resource control (RRC), the function of the packet data convergence protocol (PDCP) layer, and the DU implements the wireless chain.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU implements the wireless chain.
  • the functions of the radio link control (RLC), the media access control (MAC), and the physical (PHY) layer Since the information of the RRC layer eventually becomes information of the PHY layer or is transformed by the information of the PHY layer, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also be used in this architecture.
  • the network device can be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU may be divided into network devices in the access network RAN, and the CU may be divided into network devices in the core network CN, which is not limited herein.
  • the terminal device may also be referred to as a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a terminal.
  • UE user equipment
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, drone devices, and terminal devices in future 5G networks or public land mobile networks in the future (public land mobile network)
  • the terminal device and the like in the PLMN are not limited in this embodiment of the present application.
  • the terminal device may also be a wearable device.
  • a wearable device which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.
  • the embodiments of the present application can be applied to any of the foregoing communication systems.
  • the embodiment of the present application can be applied to an LTE system and a subsequent evolved system, such as 5G, or other wireless communication systems that use various radio access technologies, such as using code points.
  • a wireless network using Massive Multiple-Input Multiple-Output (M-MIMO) technology a wireless network using distributed antenna technology, and the like.
  • M-MIMO Massive Multiple-Input Multiple-Output
  • FIG. 1 is a schematic diagram of a scenario of a communication system applicable to an embodiment of the present application.
  • the communication system 100 includes a network side device 102, and the network side device 102 may include a plurality of antenna groups.
  • Each antenna group may include multiple antennas, for example, one antenna group may include antennas 104 and 106, another antenna group may include antennas 106 and 110, and an additional group may include antennas 112 and 114.
  • Two antennas are shown in Figure 1 for each antenna group, although more or fewer antennas may be used for each group.
  • Network side device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include various components associated with signal transmission and reception (eg, processors, modulators, multiplexers, Demodulator, demultiplexer or antenna, etc.).
  • a transmitter chain and a receiver chain may include various components associated with signal transmission and reception (eg, processors, modulators, multiplexers, Demodulator, demultiplexer or antenna, etc.).
  • the network side device 102 can communicate with a plurality of terminal devices (e.g., the terminal device 116 and the terminal device 122). However, it will be appreciated that the network side device 102 can communicate with any number of terminal devices similar to the terminal device 116 or 122.
  • Terminal devices 116 and 122 may be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable for communicating over wireless communication system 100. device.
  • terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 116 and receive information from terminal device 116 over reverse link 120.
  • terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
  • the forward link 116 can utilize a different frequency band than that used by the reverse link 120, and the forward link 124 can utilize the reverse link. 126 different frequency bands used.
  • FDD frequency division duplex
  • the forward link 116 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link.
  • Link 126 can use a common frequency band.
  • Each set of antennas and/or areas designed for communication is referred to as a sector of the network side device 102.
  • the antenna group can be designed to communicate with terminal devices in sectors of the network side device 102 coverage area.
  • the transmit antenna of the network side device 102 can utilize beamforming to improve the signal to noise ratio of the forward links 116 and 124.
  • the neighboring cell is compared with the manner in which the network side device transmits a signal to all of its terminal devices through a single antenna. Mobile devices in the middle are subject to less interference.
  • the network side device 102, the terminal device 116, or the terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
  • the wireless communication transmitting device can encode the data for transmission.
  • the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device.
  • Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.
  • the communication system 100 may be a public land mobile network PLMN network or a device to device (D2D) network or a machine to machine (M2M) network or other network, and FIG. 1 is merely an example for convenience of understanding.
  • PLMN public land mobile network
  • D2D device to device
  • M2M machine to machine
  • FIG. 1 is merely an example for convenience of understanding.
  • a simplified schematic diagram of the network may also include other network devices, which are not shown in FIG.
  • FIG. 2 shows the main steps of a data processing process performed by a transmitting end (for example, a network device) before data is transmitted by orthogonal frequency division multiplexing (OFDM) symbols. as shown in picture 2,
  • a transmitting end for example, a network device
  • OFDM orthogonal frequency division multiplexing
  • the obtained codewords from the upper layer are subjected to channel coding, scrambled, modulated, layer mapped, mapped to one or more layers, and then precoded. Processing, resource unit mapping, and finally transmitting the modulated symbols through the antenna port.
  • the upper layer for example, the media access control (MAC) layer
  • MAC media access control
  • the receiving end e.g., the terminal device
  • the specific data processing procedures described above can be referred to the description in the existing standards.
  • the new resource (NR) protocol specifies that the above-mentioned "resource unit mapping” process maps data to a virtual resource block (VRB).
  • the embodiment of the present application subtly proposes a method for communication.
  • the embodiment of the present application performs data mapping according to a resource mapping manner corresponding to a resource allocation type, and can provide a resource unit mapping scheme for different data allocation types, which is helpful. Solve the problem of directly mapping data into VRB without considering resource allocation type in NR system.
  • FIG. 3 is a schematic flow diagram of a method of communication in accordance with one embodiment of the present invention.
  • the method as shown in Fig. 3 can be applied to any of the above communication systems.
  • the method 300 shown in FIG. 3 includes:
  • the communication device determines a resource allocation type, and the resource allocation type is one of a first type and a second type.
  • the communication device in the embodiment of the present application may be a network device or a terminal device.
  • the peer device that communicates with the communication device is a terminal device; when the communication device is a terminal device, the peer device that communicates with the communication device is a network device, and the embodiment of the present application Not limited to this.
  • the resource allocation manners corresponding to the first type and the second type are different, wherein the first type may be type 0 in the NR, and the method of allocating resources by using a bitmap; It is type 1 in NR, which allocates resources by specifying the starting position of resources and the number of consecutive resource blocks.
  • the bitmap used by the first type of allocated resources may correspond to the number of resource block groups. For example, if the resource set available to the terminal device includes six resource block groups, the bitmap may be 6 bits, one bit corresponding to one bit.
  • a resource block group when a bit of a bit has a value of 1, may indicate that the resource block group corresponding to the bit is allocated to the terminal device, and when the value of a bit is 0, the resource block group corresponding to the bit may be Assigned to the terminal device.
  • the network device may send indication information to the terminal device, where the indication information indicates the resource allocation type, and the terminal device determines the resource allocation type according to the indication information.
  • the network device indicates the resource allocation type through radio resource control (RRC) signaling, or the network device may indicate the current downlink control information (DCI) by using the downlink control information (DCI).
  • RRC radio resource control
  • DCI current downlink control information
  • the resource allocation type is either the first type or the second type.
  • the communications device communicates with the peer device according to the resource mapping manner corresponding to the resource allocation type.
  • the resource mapping manner corresponding to the first type and the second type is different.
  • the embodiment of the present application uses different resource mapping manners for data mapping for different resource allocation types.
  • the embodiment of the present application can flexibly perform data mapping according to the resource mapping manner corresponding to the resource allocation type, which is helpful for solving the NR system without considering the resource allocation type, but mapping the data into the VRB in the resource unit mapping. The problem.
  • the following describes the specific process of the communication device using the resource mapping manner corresponding to the resource allocation type to communicate with the peer device, respectively, when the resource allocation type is the first type and the second type.
  • the communications device when the resource allocation type is the first type, communicates with the peer device by using a mapping manner of data mapping to physical resources.
  • the protocol specifies that the resource is allocated on the physical resource (for example, the PRB). Therefore, the embodiment of the present application may adopt the mapping manner of the data mapping to the physical resource.
  • the peer device communication helps to solve the conflict problem in the prior art that the data is mapped to the VRB in the first type.
  • the communications device communicates with the peer device by using a mapping manner of data mapping to a virtual resource.
  • the protocol specifies that the resource is allocated on the virtual resource (for example, the VRB). Therefore, the embodiment of the present application may adopt the mapping manner of the data mapping to the virtual resource.
  • the peer device communicates.
  • the communication device communicates with the peer device by using a mapping manner of data mapping to a virtual resource, including:
  • the communication device When transmitting data, the communication device maps data to the virtual resource and maps the virtual resource to a physical resource, and the communication device uses the physical resource to send the data to the opposite end;
  • the communication device When receiving data, the communication device receives data at a physical resource corresponding to the virtual resource, and maps the data to the virtual resource, and performs demodulation data.
  • the communication device can perform data demodulation directly on the physical resource that receives the data, without first mapping the data to the virtual resource and then performing data demodulation.
  • the embodiment of the present application is not limited thereto.
  • the embodiment of the present application can flexibly perform data mapping according to the resource mapping manner corresponding to the resource allocation type, which is helpful for solving the NR system without considering the resource allocation type, but mapping the data into the VRB in the resource unit mapping. The problem.
  • the embodiment of FIG. 3 describes the data mapping manner of data mapping to physical resources on the basis of allocating physical resources when the resource allocation type is the first type, thereby solving the problems in the prior art.
  • the embodiment of the present application may also be modified as follows: Since the data specified in the existing NR is mapped to the virtual resource, the embodiment of the present application may allocate the virtual resource when the resource allocation type is the first type. In this way, it can be matched with the mapping manner of data mapping to virtual resources, and the problems in the prior art can also be solved. This scheme is described below in conjunction with FIG.
  • the communication method 400 shown in FIG. 4 includes:
  • the communications device determines that the resource allocation type is the first type.
  • the first type is type 0 in the NR system.
  • the communication device in the embodiment of the present application may be a network device or a terminal device.
  • the peer device that communicates with the communication device is a terminal device; when the communication device is a terminal device, the peer device that communicates with the communication device is a network device, and the embodiment of the present application Not limited to this.
  • the method for determining the resource allocation type in the communication device in 410 can be referred to the description in step 310 above. To avoid repetition, details are not described herein again.
  • the communications device communicates with the peer device by using the virtual resource corresponding to the resource allocation information.
  • the resource allocation information may be a bitmap of a virtual resource block group.
  • the network device may send the bitmap corresponding to the number of resource block groups to the terminal device to allocate the virtual resource to the terminal device.
  • the resource block group is a virtual resource block group.
  • the terminal device can determine the allocated virtual resource according to the bitmap.
  • the bitmap may be 6 bits, where one bit corresponds to one resource block group.
  • the bit corresponding to the bit may be represented.
  • the resource block group is allocated to the terminal device.
  • a bit bit takes a value of 0, it can indicate that the resource block group corresponding to the bit is not allocated to the terminal device.
  • the communication device using the virtual resource communication may include performing mapping of the virtual resource to the physical resource when transmitting the data, and transmitting the data by using the physical resource; or, when receiving the data, the physical resource corresponding to the virtual resource. Receive data.
  • the communication device needs to perform mapping between virtual resources and physical resources. That is to say, the communication device needs to know the mapping relationship between physical resources and virtual resources.
  • the network device may indicate the mapping relationship of the terminal device by sending signaling.
  • the method includes: the network device sending, to the terminal device, mapping indication information indicating a mapping relationship between the virtual resource and a physical resource, and mapping between the virtual resource and a physical resource. A one-to-one mapping relationship or an interleaved mapping relationship.
  • the terminal device receives, by the network device, mapping indication information indicating a mapping relationship between the virtual resource and a physical resource.
  • the network device sends the mapping indication information by using the DCI, and the embodiment of the present application is not limited thereto.
  • the mapping indication information is a virtual resource block to a physical resource block mapping (VRB-to-PRB mapping).
  • the NR rule after the originating data maps the data to the VRB, the data is distributed on the final PRB through the mapping from the VRB to the PRB.
  • the VRB-to-PRB mapping is divided into two types, one is a one-to-one mapping from VRB to PRB, that is, the Nth VRB is mapped to the Nth PRB; the other is that the VRB to PRB mapping is implemented by interleaving, and the VRB to PRB is not necessarily It is a one-to-one correspondence.
  • the mapping between the specific virtual resource and the physical resource is determined by the network device, that is, the signaling of the DCI, that is, the virtual resource block to the physical resource block mapping signaling (VRB-to-PRB mapping).
  • the NR specifies that the signaling only occurs in the data allocation mode of type 1, and the signaling in the type 0 does not appear in the signaling mode.
  • mapping indication information since the data allocation mode of the type 0 in the existing NR is changed, when the type 0 is used, signaling indicating the mapping relationship between the virtual resource and the physical resource (ie, mapping indication information) is also required.
  • mapping indication information is described above as mapping mapping of virtual resource blocks to physical resource blocks in type 1 (VRB-to-PRB mapping). That is, type 0 and type 1 use the same signaling to indicate the mapping between virtual resources and physical resources.
  • the value of the signaling may be only one value, such as 0 or 1, for indicating that the physical resource and the virtual resource are one of an interlace mapping and a one-to-one mapping.
  • the embodiment of the present application is not limited thereto.
  • the embodiment of the present application can use an existing signaling to perform an indication of a mapping relationship between a physical resource and a virtual resource, and can be compatible with the prior art and reduce implementation complexity.
  • mapping indication information may also be a new signaling, and the embodiment of the present application is not limited thereto.
  • the network device may also indicate the mapping relationship of the terminal device by sending signaling.
  • the communication device network device or terminal device
  • the preset mapping relationship may be a one-to-one mapping relationship between the virtual resource and the physical resource or a relationship between the virtual resource and the physical resource.
  • the embodiment of the present application is not limited thereto.
  • the mapping relationship between the physical resource and the virtual resource is determined according to the preset mapping relationship, and no signaling indication is needed, which can save signaling overhead and improve network performance.
  • the network device performs mapping of the virtual resource to the physical resource according to a mapping relationship between the virtual resource and a physical resource, and uses the physical resource to The terminal device sends data;
  • the terminal device receives data sent by the network device in a physical resource corresponding to the virtual resource.
  • the network device receives data sent by the terminal device in a physical resource corresponding to the virtual resource.
  • the terminal device performs mapping between the virtual resource and the physical resource according to a mapping relationship between the virtual resource and the physical resource, and sends data to the network device by using the physical resource.
  • the virtual resource when the resource allocation type is the first type, the virtual resource is allocated. In this manner, the mapping manner of the data mapping to the virtual resource can be matched, and the problem in the prior art is solved.
  • the following describes the specific processing procedure between the virtual resource and the physical resource when the method shown in FIG. 3 is related to the mapping between the virtual resource and the physical resource in the method of the type 1 or the method shown in FIG. 4 .
  • the communications device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, where the size of the mapping unit represents the virtual resource and the physical resource.
  • the granularity between the mappings is not limited to the size of the set of the virtual resources and the size of the mapping unit.
  • the mapping unit may be a virtual resource block to physical resource block interleaving (VRB-to-PRB-interleaver) size, and may represent a granularity representation mapping between a virtual resource and a physical resource.
  • the minimum resource unit may also be referred to as a resource block binding set, for example, 2 VRBs or 4 VRBs, etc., and the embodiment of the present application is not limited thereto.
  • the network side may configure, by the RRC, a plurality of sets of bandwidth part (BWP) parameters, where each group of parameters includes a starting RB, a length and a subcarrier spacing of the BWP; and then the network side may be activated by the DCI.
  • BWP bandwidth part
  • the resources scheduled by the network side to the terminal device may be sub-bands in the active BWP. Therefore, the foregoing set of available virtual resources of the terminal device may be one of the plurality of BWPs, or a part of the frequency band of the BWP, and may correspond to a single scheduled resource, for example, multiple sub-bands, and the embodiment of the present application is not limited thereto. .
  • the bandwidth portion may be understood as a continuous frequency band, where the frequency band includes at least one consecutive sub-band, and each bandwidth portion may correspond to a set of system parameters including, for example, but not limited to, sub- Subcarrier spacing and Cyclic Prefix (CP), etc., different bandwidth parts can correspond to different system parameters.
  • TTI Transmission Time Interval
  • the bandwidth portion can be referred to the prior art, such as but not limited to various proposals for NR. As the technology continues to evolve, the above definitions are subject to change.
  • the set of virtual resources (for example, taking BWP as an example) contains an integer multiple of the mapping unit (for example, VRB-to-PRB-interleaver), when mapping from VRB to PRB, The virtual resource set cannot divide the mapping unit, and there are some residual RBs.
  • the two ends of the sending and receiving may use different mapping behaviors to map virtual resources to physical resources.
  • the mapping between the virtual resource and the physical resource may be performed according to the size of the set of the virtual resource and the size of the mapping unit, so that both ends of the transmitting and receiving can uniformly use the same mapping behavior, which can solve the above problem.
  • the method further includes: configuring, by the network device, the size of the terminal device to be the Mapping a unit of integer multiples of the set of virtual resources,
  • the communication device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, including: the size of the set of the virtual resources and the size of the mapping unit according to the communication device Interleaving mapping between the virtual resource and the physical resource is performed.
  • the set of virtual resources directly configured by the network device for the terminal device is an integer multiple of the mapping unit, which solves the problem that the two cannot be divisible.
  • the mapping between the virtual resource and the physical resource may be an interlaced mapping or a one-to-one mapping.
  • the embodiment of the present application is not limited thereto.
  • the mapping unit is P VRBs.
  • the virtual resource set may be divided into N groups, and each of the N groups includes P VRB.
  • the N groups of VRBs may perform one-to-one mapping or interleaving mapping on physical resources.
  • each group may be referred to as an interleaving unit.
  • the set of virtual resources cannot be divisible by the mapping unit.
  • the communication device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, including: the communication device performs a one-to-one mapping between the virtual resource and the physical resource; or
  • the communication device performs a one-to-one mapping between the virtual resource and the physical resource remaining after removing the largest integer multiple of the mapping unit in the virtual resource set, where the maximum integer multiples of the mapping unit virtual resources and physical An interleaving mapping of resources, where the interleaving unit in the interleaving mapping includes the largest integer multiple of the mapping unit; or
  • the communication device performs an interlace mapping between the virtual resource and the physical resource, where the interleaving unit in the interlace mapping includes the largest integer multiple of the mapping unit and a remainder unit, where the remainder unit includes Deleting the virtual resource remaining after the largest integer multiple of the mapping unit in the virtual resource set.
  • the remainder unit may be any one of the virtual resource sets, for example, the first or last interleaving unit in the virtual resource set, and the embodiment of the present application is not limited thereto.
  • the remainder unit is the last interleaving unit.
  • the remainder unit is an index unit or an interleaved unit with the largest number (which may also be the smallest).
  • the interleaving units in the virtual resource set are not sorted in an ascending order.
  • the resource sets are sorted in order from small to large, adjacent two interleaving units, and the interleaving is small.
  • the size of the unit is not smaller than the size of the interleaved unit with a large serial number. Since the size of the interleaving unit has only two types of values, one is a mapping unit and the other is a remainder unit. In this way, the remainder unit becomes the last interleaving unit.
  • the remainder unit is an interleaving unit that is directly indicated by the network device or directly indicated by the signaling, and the embodiment of the present application is not limited thereto.
  • the mapping unit is P VRBs.
  • the number of VRBs contained in a virtual resource collection (for example, in the case of BWP) is
  • the size of the last interleaved unit may be Or expressed as
  • mapping between the virtual resource and the physical resource may not be limited to the foregoing methods in FIG. 3 and FIG. 4, and the foregoing method may be adopted as long as the mapping between the physical resource and the virtual resource is required.
  • the embodiments of the present application are not limited thereto. The specific scheme of mapping between virtual resources and physical resources in the embodiment of the present application is described in detail below.
  • the method 500 shown in FIG. 5 includes:
  • the communications device determines a size of a set of virtual resources available to the terminal device and a size of the mapping unit.
  • the size of the mapping unit represents a granularity of mapping between a virtual resource and a physical resource.
  • the set of the virtual resources may be the foregoing BWP, or may be a partial sub-band in the BWP, and the embodiment of the present application is not limited thereto.
  • the definition of the mapping unit can be referred to the description above, and will not be described here.
  • the network device may indicate, by using the corresponding indication information, a size of the set of the virtual resources and a size of the mapping unit of the terminal device.
  • the communications device performs mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit.
  • the network device and the terminal device may perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit according to a preset calculation manner.
  • the communication device performs mapping of virtual resources to physical resources when transmitting data, and performs mapping of physical resources to virtual resources when demodulating the received data.
  • mapping mode in step 520 can be referred to the description above, and details are not described herein again.
  • the embodiment of the present application can perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resource and the size of the mapping unit, so that both ends of the transmitting and receiving can uniformly use the same mapping behavior.
  • the maximum number of CWs in a single DCI can be expressed by parameters such as "maxNrofCodeWordsScheduledByDCI" in the RRC signaling. For example, if the parameter is configured to be 1 or not configured, only one CW will be scheduled by DCI; if the parameter is configured to be 2, one CW or two CWs can be scheduled by DCI.
  • the current NR protocol DCI format 1_1 always has the overhead of the relevant parameters of the two transport blocks. However, when the first parameter in the RRC signaling indicates one CW, the relevant parameters of the two transport blocks in the DCI are The overhead is wasted, causing unnecessary overhead for DCI.
  • the method can flexibly determine the overhead of the relevant parameters of the transport block in the DCI according to the first parameter, and can save signaling overhead.
  • the 600 method shown in FIG. 6 includes:
  • the communications device determines, according to the first parameter used to indicate the number of codewords, the number of bits of the relevant parameter of the transport block corresponding to the codeword in the downlink control information DCI.
  • the relevant parameters of the transport block include at least one of the following: a modulation and coding mode MCS, a new data indication NDI, and a redundancy version number RV.
  • this first parameter may represent the maximum number of CWs in a single DCI.
  • the first parameter may be the parameter “maxNrofCodeWordsScheduledByDCI” in the RRC signaling, and the embodiment of the present application is not limited thereto.
  • the first parameter is not configured, or the value of the first parameter indicates 1 codeword,
  • the first MCS in the DCI is N 1 bit
  • the second MCS is 0 bit
  • the first NDI in the DCI is M 1 bit
  • the second NDI is 0 bits
  • the first RV in the DCI is Z 1 bit
  • the second RV is 0 bits
  • the DCI may include related parameters of one transport block, and related parameters of another transport block. At least one of the parameters is 0 bits.
  • the first MCS, the first NDI, and the first RV are related parameters of a first transport block corresponding to a first codeword; the second MCS, the The second NDI and the second RV are related parameters of the second transport block corresponding to the second codeword.
  • first and second are merely for distinguishing, and the embodiments of the present application are not limited, and “first” and “second” may be interchanged.
  • the second MCS, the second NDI, and the second RV may also be replaced with related parameters of the first transport block corresponding to the first codeword, and the embodiment of the present application is not limited thereto.
  • the data that can be transmitted according to the first parameter is one codeword
  • at least one of the related parameters of the other transport block is set to 0 bits, reducing the overhead of the relevant parameters of the transport block in the DCI.
  • the value of the first signaling indicates two codewords
  • the first MCS in the DCI is N 1 bit
  • the second MCS is N 2 bits
  • the DCI The first NDI is M 1 bit
  • the second NDI is M 2 bits
  • the first in the DCI An RV is a Z 1 bit
  • a second RV is a Z 2 bit
  • the overhead of determining the relevant parameters of the transport block in the DCI can be flexibly determined according to the first parameter, and the signaling overhead can be reduced while ensuring normal signaling.
  • the communication device sends the DCI or detects the DCI.
  • the network device sends the DCI
  • the terminal device monitors the DCI
  • FIG. 1 to FIG. 6 are merely for facilitating the understanding of the embodiments of the present invention, and the embodiments of the present invention are not limited to the specific numerical values or specific examples illustrated. A person skilled in the art will be able to make various modifications and changes in the embodiments according to the examples of FIG. 1 to FIG. 6 which are within the scope of the embodiments of the present invention.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application, and may be, for example, a schematic structural diagram of a base station. As shown in FIG. 7, the network device 700 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
  • the network device 700 may include one or more radio frequency units, such as a remote radio unit (RRU) 71 and one or more baseband units (BBUs) (also referred to as digital units, digital units, DUs). ) 72.
  • the RRU 71 may be referred to as a transceiver unit 71.
  • the transceiver unit may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 711 and a radio frequency unit 712.
  • the RRU 71 portion is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for transmitting precoding matrix information to a terminal device.
  • the BBU 72 part is mainly used for performing baseband processing, controlling a base station, and the like.
  • the RRU 71 and the BBU 72 may be physically disposed together or physically separated, that is, distributed base stations.
  • the BBU 72 is a control center of the base station, and may also be referred to as a processing unit 72, and is mainly used to perform baseband processing functions such as channel coding, multiplexing, modulation, spreading, and the like.
  • the BBU processing unit
  • the BBU can be used to control the base station to perform an operation procedure about the network device in the foregoing method embodiment.
  • the BBU 72 may be composed of one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may separately support different access modes of wireless. Access network (such as LTE network, 5G network or other network).
  • the BBU 72 also includes a memory 721 and a processor 722.
  • the memory 721 is used to store necessary instructions and data.
  • the processor 722 is configured to control the base station to perform necessary actions, for example, to control the base station to perform an operation procedure about the network device in the foregoing method embodiment.
  • the memory 721 and the processor 722 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.
  • the processing unit is configured to determine a resource allocation type, where the resource allocation type is one of a first type and a second type;
  • the transceiver unit is configured to communicate with the peer device according to the resource mapping manner corresponding to the resource allocation type, where the resource mapping manners corresponding to the first type and the second type are different.
  • the peer device that communicates with the network device may be a terminal device, and the embodiment of the present application is not limited thereto.
  • the embodiment of the present application performs data mapping according to the resource mapping manner corresponding to the resource allocation type, and can provide a resource unit mapping scheme for different data allocation types, which helps to directly map the data to the NR system without considering the resource allocation type.
  • the problem in VRB The problem in VRB.
  • the first type and the second type of resource allocation manners are different, where the first type uses a bitmap allocation resource, and the second type uses a specified resource starting. Resource allocation for location and number of consecutive resource blocks.
  • the transceiver unit is specifically configured to:
  • the mapping manner of the data mapping to the physical resource is used to communicate with the peer device;
  • the mapping manner of the data mapping to the virtual resource is used to communicate with the peer device.
  • the transceiver unit is specifically configured to:
  • the communication device When transmitting data, the communication device maps data to the virtual resource and maps the virtual resource to a physical resource, and the communication device uses the physical resource to send the data to the opposite end;
  • the communication device When receiving data, the communication device receives data at a physical resource corresponding to the virtual resource.
  • the processing unit is configured to determine that the resource allocation type is the first type.
  • the transceiver unit is configured to communicate with the peer device by using the virtual resource corresponding to the resource allocation information.
  • the embodiment of the present application can allocate a virtual resource when the resource allocation type is the first type, and in this way, the mapping manner of the data mapping to the virtual resource can be matched.
  • the allocation information includes a bitmap for indicating the virtual resource block group.
  • the transceiver unit is further configured to send, to the terminal device, mapping indication information indicating a mapping relationship between the virtual resource and a physical resource, and mapping between the virtual resource and a physical resource.
  • mapping indication information indicating a mapping relationship between the virtual resource and a physical resource, and mapping between the virtual resource and a physical resource.
  • the relationship is a one-to-one mapping relationship or an interleaved mapping relationship
  • the transmitting and receiving unit is configured to perform the virtual resource to the remote device according to the mapping relationship between the virtual resource and the physical resource when transmitting the downlink data, when the virtual resource corresponding to the resource allocation information is used to communicate with the peer device. Mapping the physical resource, and transmitting the data to the terminal device by using the physical resource; or receiving the data sent by the terminal device in the physical resource corresponding to the virtual resource when receiving the uplink data; or
  • the mapping indication information is mapping signaling of a virtual resource block to a physical resource block.
  • the transceiver unit is specifically configured to perform mapping between the virtual resource mapping and physical resources according to a preset mapping relationship.
  • the preset mapping relationship is a one-to-one mapping relationship between virtual resources and physical resources or a relationship between virtual resources and physical resources.
  • the processing unit is further configured to determine, according to a size of the set of the virtual resources and a size of the mapping unit, a mapping relationship between the virtual resource and the physical resource, where the size of the mapping unit represents a virtual The granularity of the mapping between resources and physical resources.
  • the processing unit is further configured to configure, for the terminal device, a set of the virtual resources that are an integer multiple of the mapping unit,
  • the processing unit is configured to perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, and is specifically used according to the size of the set of the virtual resources and the mapping unit.
  • the size performs an interleaving mapping between the virtual resource and the physical resource.
  • the set of virtual resources cannot be divisible by the mapping unit.
  • mapping relationship between the virtual resource and the physical resource is a one-to-one mapping relationship
  • the mapping relationship between the virtual resource and the physical resource is a one-to-one mapping relationship between the virtual resource and the physical resource remaining after removing the largest integer multiple of the mapping unit in the virtual resource set, where the maximum integer multiple
  • the mapping unit, the virtual resource and the physical resource are in an interlaced mapping relationship, and the interleaving unit in the interleaving mapping includes the largest integer multiple of the mapping unit; or
  • the mapping relationship between the virtual resource and the physical resource is an interleaving mapping relationship between the virtual resource and the physical resource, where the interleaving unit in the interleaving mapping includes the largest integer multiple of the mapping unit and a remainder a unit, where the remainder unit includes a virtual resource remaining after removing the largest integer multiple of the mapping unit in the virtual resource set.
  • the set of virtual resources includes resources of a whole bandwidth segment or resources of a single scheduling.
  • the first type is type 0, and the second type is type 1.
  • the processing unit is configured to determine, according to the first parameter used to indicate the number of codewords, the number of bits of the relevant parameter of the transport block corresponding to the codeword in the downlink control information DCI.
  • the relevant parameters of the transport block include at least one of: a modulation and coding scheme MCS, a new data indication NDI, and a redundancy version number RV;
  • the transceiver unit is configured to send the DCI or detect the DCI.
  • the data that can be transmitted according to the first parameter is one codeword
  • at least one of the related parameters of the other transport block is set to 0 bits, reducing the overhead of the relevant parameters of the transport block in the DCI.
  • the first parameter is not configured or the value of the first parameter indicates 1 codeword
  • the first MCS in the DCI is N1 bit
  • the second MCS is 0. Bit
  • N1 is an integer greater than or equal to 1
  • the first NDI in the DCI is M1 bit
  • the second NDI is 0 bit
  • M1 is an integer greater than or equal to 1
  • the first in the DCI RV is a Z1 bit
  • a second RV is 0 bits
  • Z1 is an integer greater than or equal to 1.
  • the value of the first signaling indicates 2 code words
  • the first MCS in the DCI is N1 bits
  • the second MCS is N2 bits
  • N1 and N2 are integers greater than or equal to 1
  • the first NDI in the DCI is M1 bits
  • the second NDI is M2 bits.
  • M1 and M2 are integers greater than or equal to 1
  • the first RV in the DCI is Z1 bits
  • the second RV is Z2 bits
  • Z1 and Z2 are integers greater than or equal to 1.
  • the first MCS, the first NDI, and the first RV are related parameters of a first transport block corresponding to the first codeword;
  • the second MCS, the second NDI, and the second RV are related parameters of the second transport block corresponding to the second codeword;
  • the processing unit is configured to determine a size of a set of virtual resources available to the terminal device and a size of the mapping unit
  • the transceiver unit is configured to perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, where the size of the mapping unit indicates the granularity of mapping between the virtual resource and the physical resource. .
  • the embodiment of the present application can perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resource and the size of the mapping unit, so that both ends of the transmitting and receiving can uniformly use the same mapping behavior.
  • the processing unit is further configured to configure, for the terminal device, a set of the virtual resources that are an integer multiple of the mapping unit,
  • the processing unit is configured to perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, and is specifically used according to the size of the set of the virtual resources and the mapping unit.
  • the size performs an interleaving mapping between the virtual resource and the physical resource.
  • the set of virtual resources cannot be divisible by the mapping unit.
  • the processing unit performs the mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, and is specifically used to:
  • the interleaving unit in the interlace mapping includes the largest integer multiple of the mapping unit;
  • the interleaving unit in the interlace mapping includes the largest integer multiple of the mapping unit and a remainder unit
  • the remainder unit includes the virtual resource set
  • the set of virtual resources includes resources of a whole bandwidth segment or resources of a single scheduling.
  • the network device 700 shown in FIG. 7 can implement various processes related to the network device in the method embodiments of FIG. 1 to FIG.
  • the operations and/or functions of the various modules in the network device 700 are respectively implemented in order to implement the corresponding processes in the foregoing method embodiments.
  • the detailed description is omitted here.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device can be adapted for use in the system shown in FIG.
  • FIG. 8 shows only the main components of the terminal device.
  • the terminal device 800 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing the communication protocol and the communication data, and controlling the entire terminal device, executing the software program, and processing the data of the software program, for example, for supporting the terminal device to perform the actions described in the foregoing method embodiments.
  • Memory is primarily used to store software programs and data.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit together with the antenna can also be called a transceiver, and is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 8 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process the communication protocol and the communication data, and the central processing unit is mainly used to control and execute the entire terminal device.
  • the processor in FIG. 8 can integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal device may include a plurality of baseband processors to accommodate different network standards, and the terminal device may include a plurality of central processors to enhance its processing capabilities, and various components of the terminal devices may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • an antenna and a control circuit having a transceiving function can be regarded as a transceiving unit 81 of the terminal device 800, for example, for supporting the terminal device to perform a transceiving function performed by the terminal device in the method implementation in FIG. .
  • the processor having the processing function is regarded as the processing unit 82 of the terminal device 800.
  • the terminal device 800 includes a transceiving unit 81 and a processing unit 82.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 81 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 81 is regarded as a sending unit, that is, the transceiver unit 81 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
  • the processing unit 82 can be configured to execute the instructions stored in the memory to control the transceiver unit 81 to receive signals and/or transmit signals to perform the functions of the terminal device in the foregoing method embodiments.
  • the function of the transceiver unit 81 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • the processing unit is configured to determine a resource allocation type, where the resource allocation type is one of a first type and a second type;
  • the transceiver unit is configured to communicate with the peer device according to the resource mapping manner corresponding to the resource allocation type, where the resource mapping manners corresponding to the first type and the second type are different.
  • the peer device that communicates with the terminal device may be a network device, and the embodiment of the present application is not limited thereto.
  • the embodiment of the present application performs data mapping according to the resource mapping manner corresponding to the resource allocation type, and can provide a resource unit mapping scheme for different data allocation types, which helps to directly map the data to the NR system without considering the resource allocation type.
  • the problem in VRB The problem in VRB.
  • the first type and the second type of resource allocation manners are different, where the first type uses a bitmap allocation resource, and the second type uses a specified resource starting. Resource allocation for location and number of consecutive resource blocks.
  • the transceiver unit is configured to: when the resource allocation type is the first type, use a mapping manner of data mapping to a physical resource to communicate with the peer device; or ,
  • the mapping manner of the data mapping to the virtual resource is used to communicate with the peer device.
  • the transceiver unit is specifically configured to: when transmitting data, the communication device maps data to the virtual resource, and maps the virtual resource to a physical resource, where the communication The device sends the data to the peer end by using the physical resource;
  • the communication device When receiving data, the communication device receives data at a physical resource corresponding to the virtual resource.
  • the processing unit is configured to determine that the resource allocation type is the first type.
  • the transceiver unit is configured to communicate with the peer device by using the virtual resource corresponding to the resource allocation information.
  • the embodiment of the present application can allocate a virtual resource when the resource allocation type is the first type, and in this way, the mapping manner of the data mapping to the virtual resource can be matched.
  • the allocation information includes a bitmap for indicating the virtual resource block group.
  • the transceiver unit is further configured to receive, by the network device, mapping indication information indicating a mapping relationship between the virtual resource and the physical resource, where a mapping relationship between the virtual resource and the physical resource is a one-to-one mapping relationship or an interleaving mapping relationship,
  • the transceiver unit is configured to receive, according to the physical resource corresponding to the virtual resource, the data sent by the network device, when the virtual resource corresponding to the resource allocation information is used to communicate with the peer device, or And mapping the virtual resource and the physical resource according to a mapping relationship between the virtual resource and the physical resource, and transmitting data to the network device by using the physical resource.
  • the mapping indication information is mapping signaling of a virtual resource block to a physical resource block.
  • the transceiver unit is specifically configured to perform mapping between the virtual resource mapping and physical resources according to a preset mapping relationship.
  • the preset mapping relationship is a one-to-one mapping relationship between virtual resources and physical resources or a relationship between virtual resources and physical resources.
  • the processing unit is further configured to determine, according to a size of the set of the virtual resources and a size of the mapping unit, a mapping relationship between the virtual resource and the physical resource, where the size of the mapping unit represents a virtual The granularity of the mapping between resources and physical resources.
  • the set of virtual resources cannot be divisible by the mapping unit.
  • mapping relationship between the virtual resource and the physical resource is a one-to-one mapping relationship
  • the mapping relationship between the virtual resource and the physical resource is a one-to-one mapping relationship between the virtual resource and the physical resource remaining after removing the largest integer multiple of the mapping unit in the virtual resource set, where the maximum integer multiple
  • the mapping unit, the virtual resource and the physical resource are in an interlaced mapping relationship, and the interleaving unit in the interleaving mapping includes the largest integer multiple of the mapping unit; or
  • the mapping relationship between the virtual resource and the physical resource is an interleaving mapping relationship between the virtual resource and the physical resource, where the interleaving unit in the interleaving mapping includes the largest integer multiple of the mapping unit and a remainder a unit, where the remainder unit includes a virtual resource remaining after removing the largest integer multiple of the mapping unit in the virtual resource set.
  • the set of virtual resources includes resources of a whole bandwidth segment or resources of a single scheduling.
  • the first type is type 0, and the second type is type 1.
  • the processing unit is configured to determine, according to the first parameter used to indicate the number of codewords, the number of bits of the relevant parameter of the transport block corresponding to the codeword in the downlink control information DCI.
  • the relevant parameters of the transport block include at least one of: a modulation and coding scheme MCS, a new data indication NDI, and a redundancy version number RV;
  • the transceiver unit is configured to send the DCI or detect the DCI.
  • the data that can be transmitted according to the first parameter is one codeword
  • at least one of the related parameters of the other transport block is set to 0 bits, reducing the overhead of the relevant parameters of the transport block in the DCI.
  • the first parameter is not configured or the value of the first parameter indicates 1 codeword
  • the first MCS in the DCI is N1 bit
  • the second MCS is 0. Bit
  • N1 is an integer greater than or equal to 1
  • the first NDI in the DCI is M1 bit
  • the second NDI is 0 bit
  • M1 is an integer greater than or equal to 1
  • the first in the DCI RV is a Z1 bit
  • a second RV is 0 bits
  • Z1 is an integer greater than or equal to 1.
  • the value of the first signaling indicates 2 code words
  • the first MCS in the DCI is N1 bits
  • the second MCS is N2 bits
  • N1 and N2 are integers greater than or equal to 1
  • the first NDI in the DCI is M1 bits
  • the second NDI is M2 bits.
  • M1 and M2 are integers greater than or equal to 1
  • the first RV in the DCI is Z1 bits
  • the second RV is Z2 bits
  • Z1 and Z2 are integers greater than or equal to 1.
  • the first MCS, the first NDI, and the first RV are related parameters of a first transport block corresponding to the first codeword;
  • the second MCS, the second NDI, and the second RV are related parameters of the second transport block corresponding to the second codeword;
  • the processing unit is configured to determine a size of a set of virtual resources available to the terminal device and a size of the mapping unit
  • the transceiver unit is configured to perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, where the size of the mapping unit indicates the granularity of mapping between the virtual resource and the physical resource. .
  • the embodiment of the present application can perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resource and the size of the mapping unit, so that both ends of the transmitting and receiving can uniformly use the same mapping behavior.
  • the communication device is a network device
  • the peer device is a terminal device
  • the processing unit is further configured to configure, for the terminal device, a set of the virtual resources whose size is an integer multiple of the mapping unit,
  • the processing unit is configured to perform mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, and is specifically used according to the size of the set of the virtual resources and the mapping unit.
  • the size performs an interleaving mapping between the virtual resource and the physical resource.
  • the set of virtual resources cannot be divisible by the mapping unit.
  • the processing unit performs the mapping between the virtual resource and the physical resource according to the size of the set of the virtual resources and the size of the mapping unit, and is specifically used to:
  • the interleaving unit in the interlace mapping includes the largest integer multiple of the mapping unit;
  • the interleaving unit in the interlace mapping includes the largest integer multiple of the mapping unit and a remainder unit
  • the remainder unit includes the virtual resource set
  • the set of virtual resources includes resources of a whole bandwidth segment or resources of a single scheduling.
  • the terminal device 800 shown in FIG. 8 can implement various processes related to the terminal device in the method embodiments of FIG. 1 to FIG.
  • the operations and/or functions of the respective modules in the terminal device 800 are respectively implemented in order to implement the corresponding processes in the foregoing method embodiments.
  • the detailed description is omitted here.
  • the embodiment of the present application further provides a processing apparatus, including a processor and an interface, and a processor, which is used to perform the communication in any of the foregoing method embodiments.
  • the above processing device may be a chip.
  • the processing device may be a Field-Programmable Gate Array (FPGA), may be an Application Specific Integrated Circuit (ASIC), or may be a System on Chip (SoC). It can be a Central Processor Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), or a Micro Controller (Micro Controller). Unit, MCU), can also be a Programmable Logic Device (PLD) or other integrated chip.
  • FPGA Field-Programmable Gate Array
  • ASIC Application Specific Integrated Circuit
  • SoC System on Chip
  • CPU Central Processor Unit
  • NP Network Processor
  • DSP Digital Signal Processor
  • MCU Micro Controller
  • PLD Programmable Logic Device
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated crucit (ASIC), a field programmable gate array (FPGA) or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM random access memory
  • RAM random access memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM double data rate synchronous DRAM
  • DDR SDRAM double data rate synchronous DRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronously connected dynamic random access memory
  • DR RAM direct memory bus random access memory
  • the embodiment of the present application further provides a communication system, which includes the foregoing network device and terminal device.
  • the embodiment of the present application further provides a computer readable medium having stored thereon a computer program, the method of implementing the communication in any of the foregoing method embodiments when the computer program is executed by a computer.
  • the embodiment of the present application further provides a computer program product, which is implemented by a computer to implement the method of communication in any of the foregoing method embodiments.
  • the computer program product includes one or more computer instructions.
  • 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 Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) 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 (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk, SSD)) and so on.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and a computing device can be a component.
  • One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
  • 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 mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as 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 purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application 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 computer program product includes one or more computer instructions (programs).
  • programs When the computer program instructions (programs) are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application 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 by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), 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 (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium eg, a solid state disk (SSD)

Abstract

La présente invention concerne un procédé de communication et un dispositif de communication, le procédé comprenant les étapes suivantes : le dispositif de communication détermine un type d'attribution de ressources, le type d'attribution de ressources étant soit un premier type, soit un second type; et le dispositif de communication communique avec un dispositif homologue selon un mode de mappage de ressources correspondant au type d'attribution de ressources, le premier type et le second type correspondant à des modes de mappage de ressources différents. Les modes de réalisation de la présente invention peuvent fournir des procédés de mappage d'unités de ressources pour différents types d'attribution de données.
PCT/CN2019/070334 2018-01-12 2019-01-04 Procédé de communication et dispositif de communication WO2019137299A1 (fr)

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