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WO2019178736A1 - Procédés et appareils de transmission et de réception d'informations de commande, et système de communication - Google Patents

Procédés et appareils de transmission et de réception d'informations de commande, et système de communication Download PDF

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Publication number
WO2019178736A1
WO2019178736A1 PCT/CN2018/079588 CN2018079588W WO2019178736A1 WO 2019178736 A1 WO2019178736 A1 WO 2019178736A1 CN 2018079588 W CN2018079588 W CN 2018079588W WO 2019178736 A1 WO2019178736 A1 WO 2019178736A1
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Prior art keywords
information
multiplexing
configuration
mode
terminal device
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English (en)
Chinese (zh)
Inventor
张健
张磊
王昕�
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Fujitsu Ltd
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Fujitsu Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, an apparatus, and a communication system for receiving and transmitting control information.
  • Non-orthogonal multiple access (NOMA) technology is an important technology of the fifth generation (5G) communication system.
  • NOMA is not limited to the use of orthogonal time-frequency resources to distinguish terminal devices, and thus it is possible to multiplex more terminal devices within limited time-frequency resources.
  • the robustness of NOMA to interference between terminal devices makes it easy to combine with grant-free/configured grants, thereby reducing data latency and signaling overhead. These are important for realizing key performance indicators (KPIs) such as high connection density and low latency of 5G communication systems.
  • KPIs key performance indicators
  • NOMA can use non-orthogonal resources to complex terminal devices. use. These non-orthogonal resources may include, for example, power, interleaving (corresponding to corresponding interleaver interleaver), sequences, codewords, resource mapping, and the like. Different NOMA transmission modes can be constructed based on different features of these non-orthogonal resources and/or combinations of different features.
  • the communication system should choose an optimal transmission method.
  • the problem is that this absolutely optimal mode of transmission does not necessarily exist.
  • Even the theoretically optimal (for example, multi-user capacity domain) transmission method, due to factors such as channel estimation error, error propagation, etc., will deviate from theoretical performance in reality.
  • NOMA transmission mode may be applied to a certain scenario, and another NOMA transmission mode may have better performance in another scenario, and it is almost impossible to find one that can achieve the most for all scenarios.
  • the embodiments of the present invention provide a method and a device for receiving and transmitting control information, and a communication system. It is expected that the transmission mode can be adaptively determined, and the multiplexing mode compatible with the current channel and/or the scene can be flexibly selected.
  • the multiplexing configuration is adaptively adjusted so that a better multiplexing mode and/or multiplexing configuration can always be selected, taking advantage of different multiplexing modes and/or multiplexing configurations as much as possible.
  • a method for transmitting control information including:
  • a device for transmitting control information includes:
  • An information determining unit that determines a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform information transmission or reception;
  • An information transmitting unit that transmits the information of the multiplexing mode and/or the multiplexing configuration to the terminal device.
  • a method for receiving control information including:
  • Information transmission or reception is performed based on the information of the multiplexing mode and/or the multiplexing configuration.
  • a device for receiving control information includes:
  • An information receiving unit that receives information about a multiplexing mode and/or a multiplexing configuration sent by the network device
  • An information processing unit that performs information transmission or reception based on the information of the multiplexing mode and/or the multiplexing configuration.
  • a communication system including:
  • a terminal device including the receiving device of the control information as described above;
  • a network device comprising a transmitting device for controlling information as described above.
  • the network device determines a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform information transmission or reception, and sends related information of the multiplexing mode and/or the multiplexing configuration.
  • the multiplexing mode can be adaptively determined and/or the multiplexing configuration can be adaptively adjusted, so that the advantages of different multiplexing methods and/or multiplexing configurations can be utilized as much as possible.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an interlace-based NOMA transmission mode according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a NOMA transmission mode based on a spreading sequence according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a codeword-based NOMA transmission mode according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a method for transmitting control information according to an embodiment of the present invention.
  • FIG. 6 is a diagram showing an example of time-frequency resources according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a method for transmitting and receiving control information according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a method for receiving control information according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a device for transmitting control information according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a device for receiving control information according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a network device according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising,” “comprising,” “having,” or “an” are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the term “communication network” or “wireless communication network” may refer to a network that conforms to any communication standard such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.
  • LTE Long Term Evolution
  • LTE-A Enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • the communication between the devices in the communication system may be performed according to any phase of the communication protocol, and may include, for example but not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G. , New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G, 2.75G
  • 5G New Radio
  • NR, New Radio New Radio
  • the term "network device” refers to, for example, a device in a communication system that accesses a terminal device to a communication network and provides a service for the terminal device.
  • the network device may include, but is not limited to, a device: a base station (BS, a base station), an access point (AP, an Access Point), a transmission and reception point (TRP), a broadcast transmitter, and a mobility management entity (MME, Mobile). Management Entity), gateway, server, Radio Network Controller (RNC), Base Station Controller (BSC), and so on.
  • BS base station
  • AP access point
  • TRP transmission and reception point
  • MME mobility management entity
  • Management Entity gateway
  • server Radio Network Controller
  • BSC Base Station Controller
  • the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), and the like, and may further include a Remote Radio Head (RRH). , Remote Radio Unit (RRU), relay or low power node (eg femeto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • base station may include some or all of their functionality, and each base station may provide communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term “user equipment” refers to, for example, a device that accesses a communication network through a network device and receives a network service.
  • the terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
  • the terminal device may include but is not limited to the following devices: a cellular phone (Cellular Phone), a personal digital assistant (PDA, Personal Digital Assistant), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, Cordless phones, smart phones, smart watches, digital cameras, and more.
  • a cellular phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem Wireless Fidelity
  • a wireless communication device a handheld device
  • a machine type communication device a laptop computer
  • Cordless phones smart phones, smart watches, digital cameras, and more.
  • the terminal device may be a device or device that performs monitoring or measurement, and may include, but is not limited to, a Machine Type Communication (MTC) terminal.
  • MTC Machine Type Communication
  • network side refers to one side of the network, which may be a certain base station, and may also include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to a side of a user or a terminal, which may be a certain UE, or may include one or more terminal devices as above.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • the terminal device and the network device are exemplarily illustrated.
  • the communication system 100 may include a network device 101 and a terminal device 102.
  • FIG. 1 is only described by taking one terminal device and one network device as an example, but the embodiment of the present invention is not limited thereto.
  • an existing service or a service that can be implemented in the future can be performed between the network device 101 and the terminal device 102.
  • these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and high reliability low latency communication (URLLC, Ultra-Reliable and Low). -Latency Communication), and so on.
  • FIG. 2 is a schematic diagram of an interlace-based NOMA transmission mode according to an embodiment of the present invention.
  • the output bit sequence may be repeated several times. Then, bit-level interleaving is performed, and then the interleaved bits are modulated and mapped to physical resources to form an Orthogonal Frequency Division Multiplexing (OFDM) symbol for transmission.
  • OFDM Orthogonal Frequency Division Multiplexing
  • FIG. 3 is a schematic diagram of a NOMA transmission mode based on a spreading sequence according to an embodiment of the present invention.
  • a terminal device after channel coding and rate matching bit sequences are modulated, each can be The modulated symbols are multiplied by a sequence of symbols to be spread into a sequence of symbols, followed by physical resource mapping and OFDM symbol generation.
  • FIG. 4 is a schematic diagram of a codeword-based NOMA transmission mode according to an embodiment of the present invention. As shown in FIG. 4, for a terminal device, a bit sequence that has undergone channel coding and rate matching may be directly mapped to a predetermined mapping rule. A codeword (or symbol vector/symbol sequence) followed by physical resource mapping and OFDM symbol generation.
  • different terminal devices may use different interlaces (e.g., Figure 2) or use different sequences (e.g., Figure 3) or use different codewords (e.g., Figure 4), which are the basis for distinguishing terminal devices.
  • the receiver of the network device can decouple the information (and/or data) multiplexed by the plurality of terminal devices using multi-user detection techniques.
  • different terminal devices may also perform multiplexing of information (and/or data) based on different powers or different resource mapping manners.
  • the information mentioned in the embodiment of the present invention may be control information or data information, etc.
  • the sending or receiving of the information may be an uplink transmission between the network device and the terminal device, or may be a network device.
  • the downlink transmission with the user equipment may also be an edge link transmission between the terminal device and the terminal device.
  • the embodiments of the present invention do not limit these specific contents, and can be applied to different scenarios.
  • FIG. 5 is a schematic diagram of a method for transmitting control information according to an embodiment of the present invention, showing a situation on the network device side. As shown in FIG. 5, the method includes:
  • Step 501 The network device determines a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform information transmission or reception;
  • Step 502 The network device sends the information about the multiplexing mode and/or the multiplexing configuration to the terminal device.
  • the multiplexing manner may include, for example, one or more NOMA modes using at least one of the following resources: power, interleaving, sequence, codeword, and resource mapping.
  • the present invention is not limited thereto, and other non-orthogonal resources may also be used; in addition, one of the above non-orthogonal resources may be used as one multiplexing mode, or at least two of the above non-orthogonal resources may be used as another A multiplexing method.
  • the multiplexing configuration may include information of at least one of: bit repetition number information, bit interleaving information, symbol interleaving information, bit scrambling sequence information, symbol scrambling sequence information, bit spreading sequence Information, symbol spreading sequence information, codeword information, resource mapping information, modulation information, and code rate information.
  • bit repetition number information bit interleaving information
  • symbol interleaving information bit scrambling sequence information
  • symbol scrambling sequence information bit spreading sequence Information
  • symbol spreading sequence information codeword information
  • resource mapping information resource mapping information
  • modulation information e.g., referred to as a NOMA configuration
  • the above description is exemplarily described in the NOMA mode and the NOMA configuration, but the present invention is not limited thereto, and may be, for example, an OMA mode and/or an OMA configuration.
  • the following is a description of the NOMA mode and the NOMA configuration.
  • the NOMA may use other additional dimensions (which may be referred to as non-orthogonal resources) to distinguish the terminal devices.
  • interlaces may include bit-level interleaving and/or symbol-level interleaving;
  • sequence may be a spreading sequence and/or a scrambling sequence, each of which may be a symbol sequence or a bit sequence;
  • the mapping can be a resource mapping in a sparse manner.
  • a NOMA approach may be based only on a certain feature (eg, based only on interleaving) or on a combination of multiple features (eg, based on both interleaved and sparse resource mapping).
  • the NOMA approach based on different features may be applicable to different channel conditions and/or application scenarios.
  • the NOMA method based on bit-level interleaving tends to have better block error rate (BLER) performance in low SNR regions
  • the NOMA method based on symbol-level spreading sequences tends to be higher in signal-to-noise. Better BLER performance than regions.
  • the NOMA configuration such as sequence length, interleave length, codeword length, resource mapping mode, etc. can be adaptively adjusted. For example, when the synchronization condition is not good, it is more robust to use a relatively long sequence of relatively long sequences. When the number of concurrent users in the system is small, using a shorter sequence can satisfy the performance index and reduce the receiver. The complexity of demodulation and/or decoding.
  • the network device may determine the multiplexing mode and/or the multiplexing configuration based on at least one of the following: the current channel condition, the application scenario, and the number of concurrent users; but the present invention is not limited thereto, and It can be other factors.
  • the network device can select a suitable NOMA mode and/or a corresponding NOMA configuration, and configure related information to the terminal device through signaling, thereby implementing adaptive adjustment of the NOMA mode and implementing NOMA configuration (eg, sequence length).
  • adaptive adjustment of interleave length, codeword length, resource mapping mode, etc. enables the NOMA mode and configuration to best meet the needs of current transmission.
  • N types (N ⁇ 1) of the NOMA method can be defined in advance.
  • the NOMA mode can be selected and defined based on different criteria, which is not limited by the present invention.
  • a preferred NOMA mode under the use case can be defined for each typical use case.
  • Use cases can be divided and defined by factors such as channel conditions (eg, signal-to-noise ratio conditions or intervals, etc.), and/or application scenarios (eg, mMTC, eMBB, URLLC, etc.), and/or concurrent users (eg, simultaneous) The number of users transmitted, or the number of users using overlapping time-frequency resources for data transmission, etc.
  • a Cn kind of NOMA configuration can be defined.
  • Each of the NOMA configurations may carry at least one of the following information, or information related to the following information (eg, a corresponding index or serial number, etc.), either explicitly or implicitly:
  • Number of bit repetitions Determine how the bit sequence is repeated
  • Bit interleaving mode determining how to perform bit-level interleaving of bit sequences in a manner
  • Symbol interleaving determining how to perform symbol-level interleaving of symbol sequences
  • Bit scrambling sequence bit-level scrambling of a bit sequence
  • Symbol scrambling sequence symbol level scrambling of symbol sequences
  • Symbol spreading sequence a single symbol is expanded into a symbol sequence, that is, a single symbol is multiplied by the symbol spreading sequence;
  • Codeword directly obtains a symbol vector or symbol sequence based on bits
  • Resource mapping mode decide whether to map to all resource particles or only to some resource particles; when mapping only to some resource particles, decide which resource particles are empty, that is, sparse resource mapping.
  • BPSK Binary Phase Shift Keying
  • QPSK Quadrature Phase Shift Keying
  • QAM 16 Quadrature Amplitude Modulation
  • 64QAM 64QAM
  • 256QAM 256QAM
  • Rate Determines the code rate of the channel coding.
  • different NOMA configurations have at least one of the above information different.
  • different NOMA configurations may correspond to symbol spreading sequences of different lengths.
  • the information of the multiplexing mode and/or the multiplexing configuration may be carried by semi-static signaling and/or dynamic signaling.
  • the semi-static signaling may include radio resource control (RRC) signaling
  • the dynamic signaling may include downlink control information (DCI, in a physical downlink control channel (PDCCH) (Physical Downlink Control Channel). Downlink Control Information).
  • the network device may send the NOMA mode and the corresponding NOMA configuration to the terminal device through RRC signaling or a PDCCH.
  • the terminal device can always use the NOMA mode and the corresponding NOMA configuration; and when the new NOMA mode and the corresponding NOMA configuration are received, the The terminal device can use the new NOMA mode and the corresponding NOMA configuration.
  • switching of the NOMA mode and/or the corresponding NOMA configuration can be implemented semi-statically or dynamically.
  • the network device may send the NOMA mode and the corresponding multiple NOMA configurations to the terminal device by using RRC signaling, and then use the PDCCH to instruct the terminal device to use one of the multiple NOMA configurations described above.
  • the terminal device can always use the NOMA mode and the NOMA configuration indicated in the recently received PDCCH; and when the new NOMA mode is received, the terminal device can use the terminal device.
  • the new NOMA mode and the NOMA configuration indicated in the most recently received PDCCH Thereby, the switching of the NOMA mode can be implemented semi-statically, and the switching of the corresponding NOMA configuration can be dynamically implemented.
  • the information of the multiplexing mode and/or the multiplexing configuration may be the information itself that characterizes the multiplexing mode and/or the multiplexing configuration, or may represent the multiplexing mode and/or The identifier (or serial number, index) of the multiplexed configuration.
  • At least two multiplexing modes and/or multiplexing configurations are predetermined (or predefined), and agreement can be reached between the network device and the terminal settings.
  • the network device may select one multiplexing mode and/or multiplexing configuration from the at least two multiplexing modes and/or multiplexing configurations according to various factors, and associate related information (the multiplexing mode and/or multiplexing)
  • the configured information is sent to the terminal device.
  • the related information may include an index of the one multiplexing mode and/or multiplexing configuration in the at least two multiplexing modes and/or multiplexing configurations, but is not limited thereto; and is exemplified below.
  • NOMA modes and the corresponding NOMA configurations they can be defined in advance and stored in the network device and the terminal device respectively, so that the network device and the terminal device reach an agreement.
  • Table 1 exemplarily shows an association relationship between the above NOMA mode and the NOMA configuration;
  • NOMA mode 0 can use R J different bit repetition times (R J ⁇ 1), for each given bit repetition number R j (0 ⁇ j ⁇ J-1), there are N Rj (N Rj ⁇ 1) bit interleaving can be used.
  • NOMA mode 1 can use F K different spreading factors (F K ⁇ 1), where the spreading factor is equal to the length of the spreading sequence, for each given spreading factor F k (0 ⁇ k) ⁇ K-1), there are N Fk (N Fk ⁇ 1) spreading sequences can be used.
  • NOMA mode 2 can use C L different codeword lengths (C L ⁇ 1), for each given codeword length C l (0 ⁇ l ⁇ L -1), there is N Cl (N Cl ⁇ 1) code words can be used.
  • each row in Table 1 (referring to the row with the smallest granularity) uniquely determines a NOMA mode and a corresponding NOMA configuration, and a network device (eg, a base station) can use signaling to notify the terminal device to use the table by indicating a row index.
  • a line in 1 is configured to let the terminal device know the interleaving mode/spreading sequence/codeword that it should use.
  • the "modulation method and/or code rate" in [] in Table 1 is an optional parameter, for example, it may exist in Table 1, and is combined with the interleaving method/spreading sequence/code word by indicating the row index. It can be configured for the terminal device, but it can also be used in the independent configuration. For example, related information may be configured using a PDCCH, one field in the PDCCH is used to indicate the row index of Table 1, and another independent field is used to indicate "modulation mode and/or code rate.” All of the above methods can achieve adaptation of the NOMA mode and the NOMA configuration.
  • the network device may notify the terminal device of the configuration of Table 1 using dynamic signaling and/or semi-static signaling.
  • the network device may use dynamic signaling (eg, PDCCH) to instruct the terminal device to use a certain row configuration in Table 1, so that the NOMA mode and the NOMA configuration may be dynamically switched.
  • the network device may configure semi-static signaling (such as RRC signaling) to configure which NOMA mode the terminal device uses, and then dynamically use the dynamic signaling (eg, PDCCH) to dynamically indicate that the terminal device uses the NOMA mode. Which kind of NOMA configuration.
  • the network device may also notify only the part of the configuration of the table 1 to the terminal device at a time.
  • the network device may send a certain NOMA mode and a plurality of NOMA configurations corresponding to the table 1 to the terminal device by using semi-static signaling (for example, RRC signaling), and then use dynamic signaling (for example, The PDCCH) indicates that the terminal device uses one of the plurality of NOMA configurations described above.
  • semi-static signaling for example, RRC signaling
  • dynamic signaling for example, The PDCCH
  • FIG. 6 is a diagram showing an example of time-frequency resources according to an embodiment of the present invention.
  • the adaptive adjustment of the NOMA configuration is exemplified by taking the NOMA mode based on the spread spectrum as an example; however, the present invention is not limited thereto.
  • CR denotes a code rate
  • F denotes a spreading factor
  • MCS denotes a modulation and coding scheme
  • RB denotes a resource block.
  • NOMA uses 1 RB; and since a spreading sequence is used, NOMA uses 4 RBs. However, NOMA can multiplex more terminal devices (more than 4 terminal devices) within 4 RBs. For a given size of transport block (TB), its transmission can use a variety of spreading sequences and MCS combinations (MCS includes modulation and code rate).
  • MCS includes modulation and code rate
  • Different spreading factors generally correspond to different MCSs.
  • different spreading factors F in FIG. 6 correspond to different MCS 1/MCS 2.
  • the same spreading factor may also correspond to different MCSs.
  • the same spreading factor F in FIG. 6 corresponds to different MCS 1 and MCS 2.
  • adaptive selection can be made in various combinations (e.g., combinations of 8 spreading factors and MCS) listed in FIG.
  • the calculation of the size of the transport block (TB) also needs to be modified accordingly.
  • sections 6.1.4 and 5.1.3 of the TS 38.214 v15.0.1 standard document describe how to determine the TB size, for example, the number of resource elements (REs) to be allocated for data transmission, including first calculating 1 RB. The number of REs assigned to the data is N' RE , and then the total number of REs N RE for data transmission in all RBs allocated to the terminal device is calculated, and the intermediate number of information bits N info is also calculated.
  • REs resource elements
  • NOMA introduces bit repetition/spreading/codewords, etc.
  • NOMA is equivalent to mapping the same information to more REs in duplicate form, and the number of REs available in the above calculation data is In fact, it is assumed that these REs carry independent information, so the redundancy caused by the copy of the information needs to be removed in the NOMA calculation. Since the number of bit repetitions/the spreading factor/codeword length and the like are adaptively changed in the above-mentioned NOMA adaptation process, the number of REs or the number of intermediate information bits required for the calculation of the TB size also needs to be adjusted accordingly.
  • the network device and/or the terminal device may further determine, according to the multiplexing manner and/or the multiplexing configuration, a scaling factor for calculating a TB size; and determining, according to the scaling factor, the terminal device to perform information.
  • the TB size at the time of sending or receiving.
  • NOMA uses bit repetition, Equal to the number of bit repetitions; when NOMA uses a spread spectrum sequence, Equal to the length of the spreading sequence (spreading factor); when the NOMA uses the codeword, Equal to the codeword length.
  • NOMA adaptively adjusts the number of bit repetitions/spreading factor/codeword length, It also changes accordingly.
  • selection may be calculated from the following way: After the distribution obtained by calculation in a data RE to RB number N 'RE, which is further scaled After calculating the total RE number N RE for data transmission in all RBs allocated to the terminal device, further scaling it to After calculating the number of intermediate information bits N info , further scale it to
  • N' RE , N RE and N info before scaling, as well as other steps required to calculate the TB size can refer to 6.1.4 and 5.1.3 in the TS 38.214 v15.0.1 standard document. The section of the present invention will not be described again.
  • the multiplexing manner may further include one or more OMAs using orthogonal time-frequency resources and/or orthogonal codes.
  • the terminal device can feed back to the network device the multiplexing mode and/or multiplexing configuration (eg, recommended NOMA mode and/or NOMA configuration) that it wishes to use.
  • FIG. 7 is a schematic diagram of a method for transmitting and receiving control information according to an embodiment of the present invention; further description is made from a network device side and a terminal device side. As shown in FIG. 7, the method includes:
  • Step 701 The terminal device feeds back information about the recommended multiplexing mode and/or multiplexing configuration to the network device.
  • the terminal device may indicate the row index of the table 1 in the uplink control information sent to the network device based on the table 1, so that the network device knows the NOMA mode and/or the NOMA configuration of the terminal device's own preferred (or preferred).
  • Step 702 The network device determines a NOMA mode and/or a NOMA configuration used by the terminal device to perform information transmission or reception.
  • the network device may determine the NOMA mode and/or the information used by the terminal device to transmit or receive information after considering the current channel condition, the application scenario, and the number of concurrent users, based on the feedback information of the terminal device. NOMA configuration.
  • Step 703 The network device sends the information about the NOMA mode and/or the NOMA configuration to the terminal device.
  • the network device may send the determined NOMA mode and/or the NOMA configuration to the terminal device corresponding to the row index in Table 1.
  • Step 704 The terminal device performs information transmission or reception based on the information of the NOMA mode and/or the NOMA configuration.
  • the above steps 701 to 704 can be performed one or more times, that is, the network device can perform adaptive switching on the NOMA mode and/or the NOMA configuration of the terminal device.
  • the network device can also instruct the terminal device to perform OMA transmission.
  • the method may further include:
  • Step 705 The network device determines an OMA mode and/or an OMA configuration used by the terminal device to perform information transmission or reception;
  • Step 706 The network device sends information about the OMA mode and/or the OMA configuration to the terminal device.
  • the switching between NOMA and OMA can be supported along with the switching mechanism configured by the above NOMA mode and/or NOMA.
  • a P (P ⁇ 1) row may be added in Table 1 to indicate the use of the OMA mode and/or the corresponding OMA configuration.
  • the network device uses signaling to indicate the index in the P line to the terminal device, the terminal device will transmit using the OMA mode and /OMA configuration.
  • the terminal device uses signaling to indicate an index in other rows to the terminal device, the terminal device transmits using the NOMA mode and the /NOMA configuration.
  • FIG. 7 only schematically illustrates the embodiment of the present invention, but the present invention is not limited thereto.
  • the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can appropriately adapt to the above contents, and are not limited to the above description of FIG.
  • the network device determines a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform information transmission or reception, and sends related information about the multiplexing mode and/or the multiplexing configuration to the terminal device.
  • the multiplexing mode can be adaptively determined and/or the multiplexing configuration can be adaptively adjusted, so that the advantages of different multiplexing methods and/or multiplexing configurations can be utilized as much as possible.
  • the embodiment of the present invention provides a method for receiving control information, and the same content as that of Embodiment 1 is not described herein.
  • FIG. 8 is a schematic diagram of a method of receiving control information according to an embodiment of the present invention, showing a situation on the terminal device side. As shown in Figure 8, the method includes:
  • Step 801 The terminal device receives information about a multiplexing mode and/or a multiplexing configuration sent by the network device;
  • Step 802 The terminal device performs information transmission or reception based on the information about the multiplexing mode and/or the multiplexing configuration.
  • the sending or receiving of the information (and/or data) may be an uplink transmission between the network device and the terminal device, or may be a downlink transmission between the network device and the user equipment, or may be a terminal device and Side link transmission between terminal devices.
  • the embodiments of the present invention do not limit these specific contents, and can be applied to different scenarios.
  • FIG. 8 only schematically illustrates the embodiment of the present invention, but the present invention is not limited thereto.
  • the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can appropriately modify the above based on the above contents, and are not limited to the above description of FIG.
  • the multiplexing manner may include one or more types of NOMA using at least one of the following: power, interleaving, sequence, codeword, resource mapping.
  • the multiplexing configuration may include at least one of: bit repetition number information, bit interleaving information, symbol interleaving information, bit scrambling sequence information, symbol scrambling sequence information, bit spreading sequence information, symbol spreading sequence information , codeword information, resource mapping information, modulation information, and code rate information.
  • the multiplexing mode may include one or more OMAs using orthogonal time-frequency resources and/or orthogonal codes.
  • At least two multiplexing modes and/or multiplexing configurations may be predetermined, and the information of the multiplexing mode and/or multiplexing configuration includes one multiplexing mode and/or multiplexing configuration in the An index in at least two multiplexing modes and/or multiplexing configurations.
  • the information of the multiplexing mode and/or the multiplexing configuration may be carried by semi-static signaling and/or dynamic signaling; for example, the semi-static signaling includes RRC signaling, and the dynamic signaling Includes DCI in the PDCCH.
  • the terminal device may further determine a scaling factor for calculating a transport block size according to the multiplexing manner and/or a multiplexing configuration; and determine a transport block size when transmitting or receiving information based on the scaling factor.
  • the terminal device may further feed back information about the recommended multiplexing mode and/or multiplexing configuration to the network device.
  • the network device determines a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform information transmission or reception, and sends related information about the multiplexing mode and/or the multiplexing configuration to the terminal device.
  • the multiplexing mode can be adaptively determined and/or the multiplexing configuration can be adaptively adjusted, so that the advantages of different multiplexing modes and/or multiplexing configurations can be utilized as much as possible.
  • Embodiments of the present invention provide a device for transmitting control information.
  • the device may be, for example, a network device or some or some of the components or components of the network device.
  • the same contents of the third embodiment and the first embodiment will not be described again.
  • FIG. 9 is a schematic diagram of a device for transmitting control information according to an embodiment of the present invention. As shown in FIG. 9, the device 900 for transmitting control information includes:
  • An information determining unit 901 which determines a multiplexing mode and/or a multiplexing configuration used when the terminal device performs information transmission or reception;
  • the information transmitting unit 902 transmits the information of the multiplexing mode and/or the multiplexing configuration to the terminal device.
  • the sending device 900 for controlling information may further include:
  • a factor determining unit 903 that determines a scaling factor for calculating a transport block size according to the multiplexing mode and/or the multiplexing configuration
  • the transport block determining unit 904 determines a transport block size when the terminal device performs information transmission or reception based on the scaling factor.
  • the sending device 900 for controlling information may further include:
  • the information receiving unit 905 receives the information about the recommended multiplexing mode and/or the multiplexing configuration fed back by the terminal device;
  • the information determining unit 901 further determines, according to the feedback information of the terminal device, a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform transmission or reception of information and/or data.
  • the transmitting device 900 for controlling information may further include other components or modules, and for the specific contents of these components or modules, reference may be made to related art.
  • connection relationships or signal directions between the various components or modules are exemplarily shown in FIG. 9, but it will be apparent to those skilled in the art that various related technologies such as bus connections can be employed.
  • the above various components or modules may be implemented by hardware facilities such as a processor, a memory, a transmitter, a receiver, etc.; the implementation of the present invention is not limited thereto.
  • the network device determines a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform information transmission or reception, and sends related information about the multiplexing mode and/or the multiplexing configuration to the terminal device.
  • the multiplexing mode can be adaptively determined and/or the multiplexing configuration can be adaptively adjusted, so that the advantages of different multiplexing methods and/or multiplexing configurations can be utilized as much as possible.
  • Embodiments of the present invention provide a receiving apparatus for control information.
  • the device may be, for example, a terminal device or a component or component of the terminal device.
  • the same contents of the fourth embodiment and the second embodiment will not be described again.
  • FIG. 10 is a schematic diagram of a device for receiving control information according to an embodiment of the present invention. As shown in FIG. 10, the device 1000 for controlling information includes:
  • An information receiving unit 1001 which receives information about a multiplexing mode and/or a multiplexing configuration sent by the network device;
  • the information processing unit 1002 performs information transmission or reception based on the information of the multiplexing mode and/or the multiplexing configuration.
  • the receiving device 1000 for controlling information may further include:
  • a factor determining unit 1003 that determines a scaling factor for calculating a transport block size according to the multiplexing mode and/or multiplexing configuration
  • the transport block determining unit 1004 determines a transport block size at the time of information transmission or reception based on the scaling factor.
  • the receiving device 1000 for controlling information may further include:
  • the information transmitting unit 1005 feeds back information of the recommended multiplexing mode and/or the multiplexing configuration to the network device.
  • the receiving device 1000 for controlling information may further include other components or modules, and for the specific content of these components or modules, reference may be made to related art.
  • connection relationship or signal direction between the various components or modules is exemplarily shown in FIG. 10, but it should be clear to those skilled in the art that various related technologies such as bus connection can be employed.
  • the above various components or modules may be implemented by hardware facilities such as a processor, a memory, a transmitter, a receiver, etc.; the implementation of the present invention is not limited thereto.
  • the network device determines a multiplexing mode and/or a multiplexing configuration used by the terminal device to perform information transmission or reception, and sends related information about the multiplexing mode and/or the multiplexing configuration to the terminal device.
  • the multiplexing mode can be adaptively determined and/or the multiplexing configuration can be adaptively adjusted, so that the advantages of different multiplexing methods and/or multiplexing configurations can be utilized as much as possible.
  • the embodiment of the present invention further provides a communication system.
  • the communication system 100 can include:
  • a network device 101 configured with the control device 900 as described in Embodiment 3;
  • the terminal device 102 is configured with the receiving device 1000 of the control information as described in the fourth embodiment.
  • the embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices.
  • a network device which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices.
  • FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • network device 1100 can include a processor 1110 (eg, a central processing unit CPU) and a memory 1120; memory 1120 is coupled to processor 1110.
  • the memory 1120 can store various data; in addition, a program 1130 for information processing is stored, and the program 1130 is executed under the control of the processor 1110.
  • the processor 1110 can be configured to execute the program 1130 to implement the method of transmitting control information as described in Embodiment 1.
  • the processor 1110 may be configured to perform control of determining a multiplexing mode and/or a multiplexing configuration used when the terminal device performs information transmission or reception, and an information transmitting unit that performs the multiplexing mode and/or The information of the multiplexing configuration is sent to the terminal device.
  • the network device 1100 may further include: a transceiver 1140, an antenna 1150, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the network device 1100 does not have to include all the components shown in FIG. 11; in addition, the network device 1100 may further include components not shown in FIG. 11, and reference may be made to the prior art.
  • the embodiment of the present invention further provides a terminal device, but the present invention is not limited thereto, and may be other devices.
  • FIG. 12 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 1200 can include a processor 1210 and a memory 1220; the memory 1220 stores data and programs and is coupled to the processor 1210.
  • the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.
  • the processor 1210 may be configured to execute a program to implement the method of receiving control information as described in Embodiment 2.
  • the processor 1210 may be configured to perform control of: receiving information of a multiplexing mode and/or multiplexing configuration transmitted by the network device; and transmitting or receiving information based on the information of the multiplexing mode and/or the multiplexing configuration. .
  • the terminal device 1200 may further include: a communication module 1230, an input unit 1240, a display 1250, and a power source 1260.
  • the functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the terminal device 1200 does not have to include all the components shown in FIG. 12, and the above components are not necessary; in addition, the terminal device 1200 may further include components not shown in FIG. There are technologies.
  • the embodiment of the present invention further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method for transmitting control information described in Embodiment 1.
  • the embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes the network device to execute the method for transmitting control information described in Embodiment 1.
  • the embodiment of the present invention further provides a computer program, wherein when the program is executed in the terminal device, the program causes the terminal device to perform the method for receiving control information described in Embodiment 2.
  • the embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes the terminal device to perform the method for receiving control information described in Embodiment 2.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • the method/apparatus described in connection with the embodiments of the invention may be embodied directly in hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional blocks shown in the figures and/or one or more combinations of the functional blocks may correspond to the various software modules of the computer program flow or to the various hardware modules.
  • These software modules may correspond to the respective steps shown in the figures.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.
  • Attachment 1 a method for transmitting control information, comprising:
  • the multiplexing mode comprises one or more non-orthogonal multiple accesses using at least one of the following resources: power, interleaving, sequence, codeword, Resource mapping.
  • the method of supplementary note 1 or 2, wherein the multiplexing configuration comprises at least one of: bit repetition number information, bit interleaving information, symbol interleaving information, bit scrambling sequence information, symbols Scrambling sequence information, bit spreading sequence information, symbol spreading sequence information, codeword information, resource mapping information, modulation information, and code rate information.
  • the multiplexing mode comprises one or more orthogonal multiple accesses using orthogonal time-frequency resources and/or orthogonal codes .
  • any one of supplementary notes 1 to 5 wherein at least two multiplexing modes and/or multiplexing configurations are predetermined, and from the at least two multiplexing modes according to the factors A multiplexing mode and/or a multiplexing configuration is selected in the and/or multiplexing configuration.
  • the information of the multiplexing mode and/or the multiplexing configuration comprises the one multiplexing mode and/or the multiplexing configuration in the at least two multiplexing modes And / or reuse the index in the configuration.
  • the semi-static signaling comprises radio resource control signaling
  • the dynamic signaling comprises downlink control information in a physical downlink control channel.
  • a transport block size when the terminal device performs information transmission or reception is determined based on the scaling factor.
  • Supplementary note 12 a method for receiving control information, comprising:
  • Information transmission or reception is performed based on the information of the multiplexing mode and/or the multiplexing configuration.
  • the multiplexing mode comprises one or more non-orthogonal multiple accesses using at least one of: power, interleaving, sequence, codeword, Resource mapping.
  • the multiplexing configuration comprises at least one of: bit repetition number information, bit interleaving information, symbol interleaving information, bit scrambling sequence information, symbols Scrambling sequence information, bit spreading sequence information, symbol spreading sequence information, codeword information, resource mapping information, modulation information, and code rate information.
  • the multiplexing mode comprises one or more orthogonal multiple access using orthogonal time-frequency resources and/or orthogonal codes .
  • any one of the supplementary notes 12 to 16 wherein the information of the multiplexing mode and/or the multiplexing configuration is carried by semi-static signaling and/or dynamic signaling.
  • the semi-static signaling comprises radio resource control signaling, the dynamic signaling comprising downlink control information in a physical downlink control channel.
  • a transport block size at the time of information transmission or reception is determined based on the scaling factor.
  • the information of the recommended multiplexing mode and/or the multiplexing configuration is fed back to the network device.

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

Abstract

La présente invention concerne des procédés et des appareils de transmission et de réception d'informations de commande, et un système de communication. Le procédé comprend les étapes consistant : à déterminer un mode de multiplexage et/ou une configuration de multiplexage utilisés par un dispositif terminal lors d'une transmission d'informations ou d'une réception d'informations ; à transmettre des informations associées concernant le mode de multiplexage et/ou la configuration de multiplexage au dispositif terminal. Ainsi, la présente invention permet de déterminer de manière adaptative un mode de multiplexage et/ou de régler de manière adaptative une configuration de multiplexage, ce qui permet de tirer profit au maximum des avantages de différents modes de multiplexage et/ou de différentes configurations de multiplexage.
PCT/CN2018/079588 2018-03-20 2018-03-20 Procédés et appareils de transmission et de réception d'informations de commande, et système de communication Ceased WO2019178736A1 (fr)

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WO2025160980A1 (fr) * 2024-02-02 2025-08-07 北京小米移动软件有限公司 Procédé de transmission d'informations, dispositif et support de stockage

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WO2025160980A1 (fr) * 2024-02-02 2025-08-07 北京小米移动软件有限公司 Procédé de transmission d'informations, dispositif et support de stockage

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