WO2021227071A1 - Procédé et dispositif de détermination d'intervalle de garde, et support d'informations - Google Patents

Procédé et dispositif de détermination d'intervalle de garde, et support d'informations Download PDF

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WO2021227071A1
WO2021227071A1 PCT/CN2020/090666 CN2020090666W WO2021227071A1 WO 2021227071 A1 WO2021227071 A1 WO 2021227071A1 CN 2020090666 W CN2020090666 W CN 2020090666W WO 2021227071 A1 WO2021227071 A1 WO 2021227071A1
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symbols
time unit
guard interval
srs
pusch
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PCT/CN2020/090666
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English (en)
Chinese (zh)
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贺传峰
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Oppo广东移动通信有限公司
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Priority to PCT/CN2020/090666 priority Critical patent/WO2021227071A1/fr
Priority to CN202080098948.9A priority patent/CN115315930B/zh
Publication of WO2021227071A1 publication Critical patent/WO2021227071A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method, device, and storage medium for determining a guard interval.
  • the New Radio (NR) system mainly supports Enhanced Mobile Broadband (eMBB) services to meet the requirements of high speed, high spectrum efficiency, and large bandwidth.
  • eMBB Enhanced Mobile Broadband
  • there are many other types of services such as industrial IoT sensors, surveillance cameras, and data transmission services for wearable devices.
  • the terminals that support these services have a large number of connections, low power consumption, and low cost.
  • the hardware capabilities are reduced, such as reduced bandwidth, reduced processing speed, and reduced number of antennas. Therefore, the NR system needs to be optimized for low-capacity terminals supporting the other types of services mentioned above, and the corresponding system is called an NR-light system.
  • the NR system In order to improve the performance of channel transmission, the NR system considers frequency hopping for channel transmission, that is, the bandwidth of channel resources in different time units can be different. Correspondingly, the terminal needs to retuning the receiver bandwidth from one bandwidth to another bandwidth. During the retuning period, the terminal cannot receive or send the channel, which will affect the transmission performance of the system channel.
  • the embodiments of the present application provide a method, equipment and storage medium for determining the guard interval to ensure the transmission performance of the uplink channel of the communication system.
  • an embodiment of the present application provides a method for determining a guard interval.
  • the method includes: determining N symbols in the first symbol set as guard intervals according to uplink channel transmission conditions of the symbols in the first symbol set;
  • the symbols in a symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain, the first time unit and the second time unit.
  • the frequency domain subbands corresponding to the units are different, and the number of symbols in the first symbol set is greater than N, where N is a positive integer.
  • an embodiment of the present application provides a method for determining a guard interval.
  • the method includes: determining N symbols in the first symbol set as the guard interval according to the uplink channel reception status of the symbols in the first symbol set;
  • the symbols in a symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain, the first time unit and the second time unit.
  • the frequency domain subbands corresponding to the units are different, and the number of symbols in the first symbol set is greater than N, where N is a positive integer.
  • an embodiment of the present application provides a terminal device, including: a processing module, configured to determine the N symbols in the first symbol set as guard intervals according to the uplink channel transmission status of the symbols in the first symbol set;
  • the symbols in a symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain, the first time unit and the second time unit.
  • the frequency domain subbands corresponding to the units are different, and the number of symbols in the first symbol set is greater than N, where N is a positive integer.
  • an embodiment of the present application provides a network device, including: a processing module, configured to determine the N symbols in the first symbol set as guard intervals according to the uplink channel reception status of the symbols in the first symbol set;
  • the symbols in a symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain, the first time unit and the second time unit.
  • the frequency domain subbands corresponding to the units are different, and the number of symbols in the first symbol set is greater than N, where N is a positive integer.
  • an embodiment of the present application provides a terminal device, including: a transceiver, a processor, and a memory; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, so that the processor executes any of the instructions in the first aspect.
  • a terminal device including: a transceiver, a processor, and a memory; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, so that the processor executes any of the instructions in the first aspect.
  • embodiments of the present application provide a network device, including: a transceiver, a processor, and a memory; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, so that the processor executes any of the instructions in the second aspect.
  • a network device including: a transceiver, a processor, and a memory; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, so that the processor executes any of the instructions in the second aspect.
  • an embodiment of the present application provides a computer-readable storage medium in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, they are used to implement the method of any one of the first aspect .
  • an embodiment of the present application provides a computer-readable storage medium in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, they are used to implement any of the methods in the second aspect .
  • the embodiments of the present application provide a method, device, and storage medium for determining the guard interval, which are used to improve the transmission performance of the uplink channel of the system.
  • the method includes: comprehensively analyzing the uplink channel transmission situation of multiple symbols at the junction of two consecutive time units, and determining N symbols from the junction as the guard interval, where N is a positive integer.
  • the N symbols of the determined guard interval are consecutive symbols, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the terminal performs frequency subband re-adjustment at a certain guard interval.
  • the guard interval determined by the above method has the least impact on the transmission performance of the uplink channel of the terminal, and improves the transmission performance of the uplink channel of the system.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • Figure 2 is a schematic diagram of the comb structure of the intercept reference signal SRS
  • Fig. 3 is a schematic diagram of frequency hopping of the listening reference signal SRS in the frequency domain resource position
  • FIG. 4 is a flowchart of a method for determining a guard interval provided by an embodiment of the application
  • 5 is a schematic diagram of the guard interval and the positions of the first time unit and the second time unit in the time domain provided by an embodiment of this application;
  • FIG. 6 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 7 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 8 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 9 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 10 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 11 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 12 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 13 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 14 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 15 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 16 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 17 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 18 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 19 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 20 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 21 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 22 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 23 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 24 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 25 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 26 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 27 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 28 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • FIG. 29 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 30 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • FIG. 31 is a flowchart of a method for determining a guard interval provided by an embodiment of this application.
  • FIG. 32 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 33 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • FIG. 34 is a schematic diagram of the hardware structure of a terminal device provided by an embodiment of the application.
  • FIG. 35 is a schematic diagram of the hardware structure of a network device provided by an embodiment of this application.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • the communication system includes a network device and a plurality of terminal devices communicatively connected with the network device, such as UE1 to UE6 shown in FIG. 1.
  • the network device may be a base station (Base station, BS), and the base station may be a multi-beam base station or a single-beam base station.
  • the terminal device can be a fixed terminal device or a mobile terminal device.
  • the base station and UE1 to UE6 form a communication system.
  • the base station sends a synchronization signal block SSB, and the UE can determine the time-frequency domain resources of the physical downlink control channel (PDCCH) based on the SSB to perform PDCCH detection.
  • the UE sends uplink data, such as user data and uplink control information UCI, on a physical uplink shared channel (PUSCH) scheduled by the downlink control information DCI of the PDCCH.
  • PUSCH physical uplink shared channel
  • the UE can also send UCI on a physical uplink control channel (PUCCH).
  • the UE can send SRS on the time-frequency resources of the sounding reference signal (SRS) according to the high-level parameter indication, so that the base station can perform channel quality detection, estimation, or beam management.
  • SRS sounding reference signal
  • the technical solutions of the embodiments of the present application are mainly applied to communication systems based on NR technology, such as fifth generation mobile networks (5G for short) communication systems, NR-light systems, and the like. It can also be applied to other communication systems, as long as there is an entity in the communication system that needs to instruct to communicate with another entity, and another entity needs to interpret the advance data transmission in some way, for example, it can be applied to network equipment and terminal equipment. Multi-data block scheduling is performed in between, or two terminal devices, one of which is responsible for the function of accessing the network, etc.
  • 5G fifth generation mobile networks
  • NR-light systems and the like.
  • Multi-data block scheduling is performed in between, or two terminal devices, one of which is responsible for the function of accessing the network, etc.
  • the communication system may be, for example, a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, and a wideband code division multiple access (Wideband Code Division Multiple Access) system.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A LTE Advanced
  • LTE Frequency Division Duplex Frequency Division Duplex
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the terminal device referred to in the technical solutions of the embodiments of the present application may be a wireless terminal or a wired terminal.
  • a wireless terminal may be a device that provides voice and/or other service data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • a wireless terminal can communicate with one or more core networks via a radio access network (Radio Access Network, referred to as RAN).
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a mobile phone with a mobile terminal.
  • Computers for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal can also be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile station (Mobile Station), mobile station (Mobile), remote station (Remote Station), remote terminal (Remote Terminal), connection The access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), and user equipment (User Device or User Equipment) are not limited here.
  • the network equipment referred to in the technical solutions of the embodiments of the present application is a type of equipment deployed on a wireless access network to provide wireless communication functions, which may be Global System of Mobile Communications (GSM) or multiple code divisions.
  • the base station (Base Transceiver Station, referred to as BTS) in the address (Code Division Multiple Access, referred to as CDMA) can also be the base station (NodeB, referred to as NB) in Wideband Code Division Multiple Access (WCDMA), It can also be an Evolutional Node B (eNB or eNodeB for short) in LTE, or a relay station or an access point, or a transmission reception point (TRP) in a new air interface NR network, or a next-generation node B (generation nodeB, gNB), or base stations in other future network systems, etc., are not limited here.
  • PUCCH is used to carry uplink control information UCI.
  • PUCCH supports 5 different formats. According to the number of symbols occupied in the time domain, it can be divided into short format and long format. As shown in Table 1, the short format occupies 1-2. Symbols can carry 1-2 bits of information. The long format occupies 4-14 symbols and can carry more than 2 bits of information.
  • the base station indicates the time slot slot for transmitting the DCI or the ACK/NACK corresponding to the PDSCH scheduled by the DCI through the PDSCH-to-HARQ_feedback timing indicator information field in the downlink control information DCI.
  • the PDSCH-to-HARQ_feedback timing indicator is used to indicate the value of k, and k represents the time domain position offset value of the ACK/NACK relative to the DCI or the PDSCH scheduled by the DCI. That is, the PDSCH scheduled by DCI or DCI is transmitted in slot n, and the corresponding ACK/NACK is transmitted in slot n+k.
  • the length of the information field is 3 bits, and the corresponding value range is ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ .
  • the base station first configures a set through high-level signaling.
  • the set includes I elements, and each element indicates the value of k.
  • the length of the information field is I is a positive integer not greater than 8.
  • the UE After determining the time slot where the PUCCH is located, it is also necessary to determine the resources of the PUCCH. If the UE does not have a dedicated PUCCH resource configuration, for example, before a radio resource control (Radio Resource Control, RRC) connection is established, the UE can obtain a PUCCH resource set according to pucch-ResourceCommon in the system message. The UE transmits HARQ-ACK information in the UL BWP of the initial uplink bandwidth part according to the PUCCH resources in the PUCCH resource set. As shown in Table 2, pucch-ResourceCommon indicates a PUCCH resource collection index index in the following table.
  • RRC Radio Resource Control
  • the UE determines the PUCCH resource in the PUCCH resource set according to the number n CCE,0 of the first CCE of the PDCCH scheduling the PDSCH and the PUCCH resource indicator information indicated in the DCI.
  • the determined PUCCH resource includes the time slot where the PUCCH resource is located, cyclic shift (CS, cyclic shift), and PRB in the frequency domain.
  • the UE may be configured with 1 to 4 dedicated PUCCH resource sets.
  • the first PUCCH resource set only supports the UE to determine the PUCCH resource in the PUCCH resource set according to the number of the first CCE of the PDCCH scheduling the PDSCH and the PUCCH resource indicator information indicated in the DCI.
  • the base station will configure 1 to 4 PUCCH resource sets for the UE through RRC signaling.
  • the first PUCCH resource set can be configured with 1 to 32 PUCCH resources.
  • Each PUCCH resource only supports format0 and format1 in Table 1, and can only carry 1-2 bits of UCI. If the second, third, and fourth PUCCH resource sets are configured, each PUCCH resource set can be configured with 1-8 PUCCH resources.
  • Each PUCCH resource in these PUCCH resource sets only supports format2, format3 and format4 in Table 1. Can carry more than 2bit UCI.
  • the configuration of each PUCCH resource includes resources of different PUCCH formats, including the starting symbol index, the number of symbols, and code domain information in the time slot. Format2 and format3 also include the number of PUCCH PRBs and the starting PRB number. Refer to Table 1 for the resources of various PUCCH formats and the number of bits carried.
  • Each PUCCH resource set is respectively configured with the maximum number of UCI bits that the PUCCH resource set can carry. According to the actual number of bits carried by the PUCCH, the UE determines the first PUCCH resource set that can meet the number of bits. Then, the UE determines the PUCCH resource in the PUCCH resource set according to the number of the first CCE of the PDCCH that schedules the PDSCH and the PUCCH resource indicator information indicated in the DCI.
  • the base station schedules PUSCH transmission by sending an uplink grant (UL grant, DCI format 0_0 or DCI format 0_1).
  • UL grant UL grant
  • TDRA TimeDomainResourceAllocation
  • the TDRA field is 4 bits and can indicate 16 different rows in a resource allocation table. Each row contains a different Resource allocation combinations, such as PUSCH starting position S, length L, k2, and different types, etc. Among them, k2 represents the number of offset slots between the slot where the DCI is located and the slot where the PUSCH is located. For details, see Table 3 and Table 4.
  • Table 4 shows the value of j, where ⁇ PUSCH is the sub-carrier interval of PUSCH , and ⁇ PUSCH is 0, 1, 2, and 3 respectively indicating that the sub-carrier interval is 15 kHz, 30 kHz, 60 kHz, and 120 kHz.
  • the types of PUSCH time domain resource allocation include Type A and Type B.
  • the value ranges of S and L candidate values corresponding to Type A and Type B are different.
  • Type A is mainly for slot-based services, S is relatively high, and L is relatively long.
  • Type B is mainly oriented to URLLC services and has high requirements for delay, so the location of S is more flexible to transmit URLLC services that arrive at any time, and L is shorter, which can reduce transmission delay.
  • the optional value ranges of S and L are shown in Table 5.
  • the base station can be configured through high-level signaling, or it can be dynamically indicated through DCI.
  • the Type0 frequency domain resource allocation method indicates the RBG allocated to the UE through the bitmap.
  • the number of resource blocks RB contained in the RBG is related to the high-level parameter configuration (Configuration 1 and Configuration 2) and the BWP size (Bandwidth Part Size), as shown in Table 6. .
  • the Type1 frequency domain resource allocation method combines the starting position (S) and the length (L) of the resource to form a RIV value (resource indication value).
  • a group of (S, L) corresponds to a RIV value one-to-one, and the UE can deduce the corresponding (S, L) through the RIV value.
  • S represents the position of the virtual RB
  • L represents the number of consecutive RBs allocated.
  • the uplink reference signal includes the demodulation reference signal DMRS (Demodulation Reference Signals) and the listening reference signal SRS. Both DMRS and SRS can be used for channel estimation.
  • DMRS is transmitted with PUCCH or PUSCH, so the uplink channel is evaluated from the same frequency position.
  • SRS signals are not transmitted with PUCCH or PUSCH, so they are different from each other. The frequency position of the evaluation of the uplink channel.
  • the network can configure one or more SRS resource sets for the UE.
  • the purpose of configuring multiple SRS resource sets may be for uplink and downlink multi-antenna precoding, or for uplink and downlink beam management.
  • An SRS resource set can contain one or more SRS resources, and the time-frequency domain resources occupied by each SRS resource are:
  • SRS occupies 1, 2 or 4 consecutive symbols among the last 6 symbols in the slot in the time domain.
  • SRS-for-positioning SRS occupies 1, 2, 4, 8, 12 consecutive symbols among all 14 symbols in the slot in the time domain.
  • periodic SRS is to configure the period of sending SRS through the slot-level period and offset, the minimum is 1 slot, and the maximum is 2560 slots;
  • semi-persistent SRS is based on periodic transmission, adding the activation and deactivation of the MAC layer Signaling;
  • Aperiodic SRS is sent by DCI format 0_1 and DCI format 1_1 to trigger SRS transmission, where SRS request will indicate a specific SRS resource set, and DCI format 2-3 may also trigger aperiodic SRS, which is only used in special cases ( SRS switch).
  • SRS can occupy 4-272 RBs in the frequency domain.
  • the maximum bandwidth of the BWP in the NR is 275 RBs, and the frequency domain resource bandwidth of the SRS can satisfy the sounding under BWP configurations of various bandwidths.
  • the SRS bandwidth is an integer multiple of 4.
  • the frequency domain resources of SRS have two different comb structures, comb2 and comb4 respectively. comb2 is mapped to one RE every other subcarrier, and comb4 is mapped to one RE every three subcarriers, as shown in FIG. 2.
  • the frequency domain resource position of SRS also supports frequency hopping.
  • Figure 3 shows a schematic diagram of frequency hopping of the frequency domain resource position of SRS. As shown in Figure 3, SRS occupies the last 4 symbols of a slot, and the last 4 symbols correspond to The location of the frequency domain resources is different.
  • An SRS resource can have 1, 2 or 4 ports, and each port occupies the same SRS resource, which is distinguished from each other by the orthogonality of the ZC sequence.
  • the SRS of multiple UEs can be time-division multiplexing (TDM) in a slot, or can be frequency-division multiplexing (Frequency-division multiplexing, FDM) through a comb structure.
  • the UE does not transmit SRS;
  • the priority order is: aperiodic>semi-continuous>periodical.
  • the NR system is mainly designed to support eMBB services, and its main technology is to meet the needs of high speed, high spectrum efficiency, and large bandwidth.
  • eMBB there are many different types of services, such as: sensor networks, video surveillance, wearables, etc., which have different requirements from eMBB services in terms of rate, bandwidth, power consumption, and cost.
  • the capabilities of terminals that support these services are reduced compared to those that support eMBB, such as reduced bandwidth, reduced processing time, and reduced number of antennas.
  • NR systems need to be optimized for these services and corresponding low-capacity terminals. Such systems are called NR-light systems.
  • the bandwidth supported by low-capacity terminals is relatively limited.
  • frequency hopping can be used for channel transmission.
  • the terminal needs to retun the receiver bandwidth from one bandwidth to another bandwidth. During the retuning period, the terminal cannot receive and send the channel, which will affect the transmission performance of the system channel. Since the time-domain resource configuration of the control channel in the NR system is relatively flexible, it is necessary to define a corresponding guard interval under different control channel resource configurations to ensure the transmission performance of the NR-Light system.
  • the embodiment of the present application provides a method for determining the guard interval, considering that the bandwidth re-adjustment (or called frequency sub-band re-adjustment) occurs in two consecutive time units (for example, the first time unit and the second time unit). Unit), and the bandwidths of two consecutive time units are different. Therefore, based on the uplink channel transmission conditions of the symbols at the boundary of these two time units, the guard interval is determined from the boundary of the two consecutive time units.
  • the guard interval in the embodiment of the present application may be one symbol or multiple consecutive symbols, where the symbol on the left side of the guard interval belongs to the first time unit, and the symbol on the right side of the guard interval belongs to the second time unit.
  • the method provided in the embodiments of the present application mainly involves the analysis of the uplink channel transmission situation on the terminal side and the analysis of the uplink channel reception situation on the network side. Based on the uplink channel transmission situation, the appropriate guard interval is determined to ensure the selected protection.
  • the interval has the least impact on the transmission of at least one of PUSCH, PUCCH, and SRS, and improves the transmission performance of the uplink channel of the system.
  • Fig. 4 is a flowchart of a method for determining a guard interval provided by an embodiment of the application. As shown in FIG. 4, the method provided in this embodiment can be applied to any UE shown in FIG. 1, and the method includes the following steps:
  • Step 101 Determine the N symbols in the first symbol set as guard intervals according to the uplink channel transmission situation of the symbols in the first symbol set.
  • the symbols in the first symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain.
  • the first time unit comes first, and the second time unit comes later.
  • the frequency domain subbands corresponding to the first time unit and the second time unit are different, the number of symbols in the first symbol set is greater than N, and N is a positive integer.
  • the time unit in the embodiment of the present application may be a radio frame, a subframe, a time slot, etc., which does not impose any limitation on the embodiment of the present application.
  • the symbols in the first symbol set in the embodiments of the present application can be understood as symbols at the junction of the first time unit and the second time unit.
  • the UE can select one symbol from the two symbols at the junction of the first time unit and the second time unit, where the two symbols at the junction can be the first symbol.
  • the UE can select two consecutive symbols from the four symbols at the junction of the first time unit and the second time unit, where the four symbols at the junction It can be the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit.
  • the uplink channel transmission situation of the symbols in the first symbol set in the embodiment of the present application includes at least one of sending PUSCH, sending PUCCH, sending SRS, or not sending a channel. That is, any symbol in the first symbol set can be used to send PUSCH, send PDCCH, send SRS or not send channel.
  • the N symbols of the guard interval determined in the embodiment of the present application are consecutive symbols, and the symbols on both sides of the guard interval belong to different time units.
  • Figure 5 shows the position of the guard interval and the first time unit and the second time unit in the time domain. As shown in Figure 5, the guard interval is located at the junction of the first time unit and the second time unit, on the left side of the guard interval The symbol of belongs to the symbol of the first time unit, and the symbol on the right side of the guard interval belongs to the symbol of the second time unit.
  • the terminal device determines the N symbols in the first symbol set as guard intervals according to the uplink channel transmission situation of the symbols in the first symbol set.
  • the guard interval of N symbols includes the following situations: (1) the last N symbols at the end of the first time unit; (2) the first N symbols at the beginning of the second time unit; (3) from the first time unit N consecutive symbols selected from the last N-1 symbols at the end and the first N-1 symbols at the beginning of the second time unit.
  • the guard interval may be the last symbol at the end of the first time unit, or the first symbol at the beginning of the second time unit.
  • the guard interval may be the last two symbols at the end of the first time unit, or the first two symbols at the beginning of the second time unit, or the last symbol at the end of the first time unit Symbol and the first symbol at the beginning of the second time unit.
  • the guard interval can be the last three symbols at the end of the first time unit, or the first three symbols at the beginning of the second time unit, or the last three symbols from the end of the first time unit. 2 symbols and 3 consecutive symbols selected from the first 2 symbols at the beginning of the second time unit.
  • the above examples show several possible situations of guard interval corresponding to different N values.
  • the comprehensive analysis it is necessary to consider the type of the uplink channel of the symbol at the junction (such as PUSCH, PUCCH, non-transmission channel), and the type of information carried by the uplink channel (such as only sending user information, simultaneously sending user information and UCI, and user information.
  • the symbol has the least impact on the transmission performance of the terminal's uplink channel.
  • SRS type such as SRS for positioning, SRS for detection
  • SRS transmission mode periodic, aperiodic, semi-continuous
  • Step 102 Perform corresponding operations in the determined guard interval.
  • the operation performed by the UE in the determined guard interval includes at least one of the following:
  • the frequency subband readjustment in the embodiment of the present application refers to that the UE adjusts the bandwidth of the receiver from the bandwidth of the first time unit to the bandwidth of the second time unit.
  • the UE may not receive or transmit the channel, and the UE may continue to transmit the channel on the symbol as the guard interval according to the preset transmission condition of the symbol, which does not impose any limitation in this embodiment of the application.
  • the rate matching in the embodiment of the present application means that according to the determined guard interval, when the uplink channel contains the symbol as the guard interval, when the UE modulates and maps the data carried by the channel, it is not mapped to the symbol as the guard interval.
  • the UE plans to send PUSCH on the last 10 symbols at the end of the first time unit, where the last symbol at the end of the first time unit is used as the guard interval, and the UE can adjust the time domain resources of the PUSCH, Among the last 10 symbols at the end of a time unit, the PUSCH is transmitted on 9 symbols excluding the last symbol to ensure the reliability of uplink channel transmission.
  • the method for determining the guard interval uses a comprehensive analysis of the uplink channel transmission situation of multiple symbols at the junction of two consecutive time units to determine N symbols as the guard interval, where N is a positive integer.
  • the N symbols of the determined guard interval are consecutive symbols, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the terminal performs frequency subband re-adjustment at a certain guard interval.
  • the guard interval determined by the above method has the least impact on the transmission performance of the uplink channel of the terminal, and improves the transmission performance of the uplink channel of the system.
  • the terminal performs a comprehensive analysis according to the uplink channel transmission situation of multiple symbols at the junction of two consecutive time units to determine the guard interval.
  • the uplink channel transmission condition of the symbol at the junction of two consecutive time units includes at least one of sending PUSCH, sending PUCCH, sending SRS, or not sending channel.
  • the terminal determines the guard interval according to the uplink channel transmission status of the symbols at the junction of two consecutive time units (that is, the symbol distribution of each uplink channel transmission type in the first symbol set) and the priority order of channel transmission types, and The lower priority symbol of the channel transmission type is used as the guard interval.
  • the terminal can select the last symbol at the end of the first time unit, or , The first symbol at the beginning of the second time unit is used as the guard interval. If the channel transmission types of the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit are different, the terminal will use the channel of the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit. The priority order of the transmission types, and a symbol with a lower priority is selected as the guard interval.
  • the terminal selects two consecutive symbols from the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit as the guard interval. First, select a symbol with a lower priority from the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit as the guard interval, and then select the priority from the two adjacent symbols of the selected symbol The lower symbol is used as another symbol of the guard interval.
  • the symbols for transmitting PUSCH may also be subdivided into symbols for PUSCH carrying UCI and symbols for PUSCH not carrying UCI according to the type of PUSCH carrying information.
  • the network side can set the priority order of the PUSCH symbols carrying different information types.
  • the symbols for sending SRS can also be subdivided into symbols for sending SRS for positioning and symbols for sending SRS for sounding according to the type of SRS, and the symbols for sending SRS can also be divided according to the sending mode of SRS. It is subdivided into symbols for sending periodic SRS, symbols for sending aperiodic SRS, and symbols for sending semi-persistent SRS.
  • the network side may set the priority order of the symbols carrying different SRS types, and/or set the priority order of the symbols carrying the SRS of different transmission modes.
  • the priority order of the channel transmission type of the symbols includes the following setting methods:
  • This setting method does not consider the type of PUSCH carried information and the type and transmission method of SRS.
  • the terminal preferentially selects the symbol that does not send the channel at the junction of two time units as the guard interval. If there is no symbol that does not send the channel at the junction, it will give priority to transmission.
  • the symbol of the SRS is used as the guard interval, the symbol for transmitting the PUSCH is selected second, and the symbol for transmitting the PUCCH is finally selected.
  • Transmit PUCCH transmit PUSCH carrying UCI>transmit PUSCH without UCI>transmit SRS>not transmit channel.
  • This setting method considers the type of information carried by the PUSCH.
  • the PUSCH and PUCCH that carry UCI have the same priority. If there is no symbol that does not send the channel at the junction of the two time units, the symbol that sends the SRS is selected first as the guard interval, and then the symbol that sends the SRS is selected as the guard interval.
  • the symbol of the PUSCH carrying UCI is used as a guard interval, and the last is the symbol of sending PUCCH or the symbol of sending PUSCH carrying UCI.
  • Transmit PUCCH transmit PUSCH carrying UCI>transmit sounding SRS>transmit PUSCH without UCI>transmit positioning SRS>not transmit channel.
  • This setting method further subdivides PUSCH on the basis of the fourth setting method.
  • This setting method takes into account the transmission type of SRS. If there is no symbol that does not send the channel at the junction of the two time units, the terminal preferentially selects the symbol for sending periodic/semi-persistent SRS as the guard interval. If there is no symbol for sending periodic/semi-persistent SRS at the junction , The symbol for transmitting PUSCH is selected first as the guard interval, the symbol for transmitting aperiodic SRS is selected second, and the symbol for transmitting PUCCH is finally selected.
  • Transmit PUCCH transmit PUSCH carrying UCI>transmit aperiodic SRS>transmit PUSCH without UCI>transmit periodic/semi-persistent SRS>not transmit channel.
  • This setting method further subdivides PUSCH on the basis of the fifth setting method.
  • the terminal can select the channel transmission type from the first symbol set with a higher priority according to the preset uplink channel transmission situation of the symbols in the first symbol set and the priority order of the channel transmission types of the preset symbols.
  • the low symbol is used as the guard interval.
  • the selected guard interval is consecutive N symbols, and the symbols on the left and right sides of the guard interval belong to different time units.
  • the consecutive N symbols may be symbols of the same channel transmission type, or they may be multiple.
  • the symbol of the channel transmission type If the consecutive N symbols include symbols of multiple channel transmission types, the number of symbols with a low channel transmission type priority is greater than or equal to the number of symbols with a high channel transmission type priority, that is, the terminal prefers to select the channel transmission type priority
  • the lower symbol serves as a guard interval.
  • the guard interval determination method for the distribution of various symbols at the junction of two consecutive time units in detail with reference to Figure 6 to Figure 30. illustrate.
  • the symbol distribution at the junction of the time unit that is, the symbol distribution in the first symbol set. Since each symbol in the first symbol set can be used to transmit PUSCH, PUCCH, SRS or not transmit a channel, correspondingly, the first symbol set may include only one type of symbols, or may include multiple types of symbols.
  • the guard interval can be the last N symbols at the end of the first time unit, or the first N symbols at the end of the second time unit, or from the last N-1 symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. -1 consecutive N symbols selected from the symbols.
  • FIG. 6 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • the number N of guard interval symbols in FIG. 6 is 1, and the symbols in the first symbol set include the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Figure 6(a), that is, the last symbol at the end of the first time unit, or the guard interval shown in Figure 6(b), that is, the second time. The first symbol at the beginning of the unit.
  • FIG. 7 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • the number of guard interval symbols N in FIG. 7 is 2, and the symbols in the first symbol set include the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Fig. 7(a), that is, the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit, or it can be the guard interval shown in Fig. 7(b).
  • the guard interval shown in ), that is, the last two symbols at the end of the first time unit may also be the guard interval shown in (c) of FIG. 7, that is, the first two symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit, or the first N symbols at the end of the second time unit. It is possible to determine whether to select the last N symbols at the end of the first time unit as the guard interval or the first N symbols at the beginning of the second time unit as the guard interval in the following manner: according to the last N symbols at the end of the first time unit and the first The type of information sent by the first N symbols at the beginning of the second time unit determines the guard interval. Among them, the type of symbol sending information includes sending user information only, or sending user information and UCI at the same time.
  • the terminal determines the guard interval according to the type of PUSCH carrying information, and uses the symbol of the PUSCH carrying low priority information as the guard interval. Because the PUSCH carries user information and the UCI has a higher priority than the PUSCH only carries user information, the terminal The N symbols of the PUSCH in which only user information is transmitted are used as guard intervals.
  • the terminal may also use the last N symbols at the end of the first time unit and the second time unit to receive information.
  • the type of user information sent by the first N symbols at the start, or the type of UCI, determines the guard interval.
  • the terminal may also use the last symbol at the end of the first time unit.
  • the N symbols and the first N symbols at the beginning of the second time unit send the type of user information, and it is determined whether the last N symbols or the first N symbols are selected as the guard interval.
  • the type of user information may be a type of service, for example, the type of service is service 1, service 2, service 3, and so on.
  • the type of user information can also be information that carries Msg3 or MsgA, and information that is not Msg3 or MsgA.
  • the terminal can determine the guard interval according to the priority of the user information.
  • the network side may determine the priority information of the user information type through the information indicated by the PDCCH, for example, through the timing parameter K0 in the PDCCH.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit have different types of user information, and the last N symbols at the end of the first time unit have the same type of user information.
  • the first N symbols at the beginning of the second time unit send the same type of user information.
  • the terminal may determine whether to select the last N symbols or the first N symbols according to the priority of the preset user information.
  • the terminal can also send user information and UCI according to the first time unit.
  • the last N symbols at the end and the first N symbols at the beginning of the second time unit send the UCI type of the PUSCH, and it is determined whether the last N symbols or the first N symbols are selected as the guard interval.
  • the type of UCI carried by PUSCH includes HARQ-ACK, CSI and other information.
  • the priority of PUSCH carrying HARQ-ACK is higher than PUSCH carrying CSI, and N symbols of CSI carrying PUSCH may be used as guard intervals.
  • the priority of the PUSCH carrying CSI may be higher than the PUSCH carrying HARQ-ACK, which does not impose any limitation in the embodiment of the present application.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit have different types of PUSCH UCI, and the last N symbols at the end of the first time unit send PUSCH UCI.
  • the types are the same, and the first N symbols at the beginning of the second time unit are of the same UCI type of the PUSCH sent.
  • the terminal may determine whether to select the last N symbols or the first N symbols according to the priority of the preset UCI type.
  • the terminal sends the PUSCH information type through the symbols in the first symbol set, and selects consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit As a guard interval, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the symbol of which information type is selected depends on the priority of the information type of the preset PUSCH.
  • the type of information carrying PUSCH includes only carrying user information, or carrying user information and UCI at the same time, and the priority of the type of user information or UCI can also be further refined.
  • the guard interval determined by the above method has the least impact on the transmission of the PUSCH, ensuring the transmission of high-priority PUSCH information.
  • the guard interval can be the last N symbols at the end of the first time unit, or the first N symbols at the end of the second time unit, or from the last N-1 symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. -1 consecutive N symbols selected from the symbols.
  • FIG. 8 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • the number N of guard interval symbols in FIG. 8 is 1, and the symbols in the first symbol set include the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Figure 8(a), that is, the last symbol at the end of the first time unit, or the guard interval shown in Figure 8(b), that is, the second time The first symbol at the beginning of the unit.
  • FIG. 9 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • the number N of guard interval symbols in FIG. 9 is 2, and the symbols in the first symbol set include the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Fig. 9(a), that is, the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit, or it can be the guard interval shown in Fig. 9(b).
  • the guard interval shown in ), that is, the last two symbols at the end of the first time unit may also be the guard interval shown in (c) of FIG. 9, that is, the first two symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit, or the first N symbols at the end of the second time unit.
  • the following methods can be used to determine whether to select the last N symbols at the end of the first time unit as the guard interval or the first N symbols at the beginning of the second time unit as the guard interval:
  • the guard interval is determined according to the UCI type of PUCCH sent by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the type of UCI carried by PUCCH includes HARQ-ACK, CSI and other information.
  • the PUCCH carrying HARQ-ACK has a higher priority than the PUCCH carrying CSI, and N symbols of the CSI of the PUCCH may be sent as a guard interval.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit have different types of PUCCH UCI, and the last N symbols at the end of the first time unit send PUCCH UCI.
  • the types are the same, and the first N symbols at the beginning of the second time unit send the same UCI types of the PUCCH.
  • the terminal may determine whether to select the last N symbols or the first N symbols according to the priority of the preset UCI type.
  • the terminal sends the UCI type of PUCCH through the symbols in the first symbol set, and selects consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit As a guard interval, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • which UCI type symbol is selected depends on the preset UCI type priority, that is, the terminal determines the guard interval according to the priority order of the PUCCH carrying UCI type, and the PUCCH symbol carrying the low-priority UCI type PUCCH is used as the guard interval.
  • the guard interval determined by the above method has the least impact on the PUCCH transmission performance, and ensures the transmission of high-priority PUCCH information.
  • the multiple symbols at the boundary between the first time unit and the second time unit do not send the channel, that is, the symbols in the first symbol set do not send the channel.
  • the guard interval can be the last N symbols at the end of the first time unit, or the first N symbols at the end of the second time unit, or from the last N-1 symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. -1 consecutive N symbols selected from the symbols.
  • FIG. 10 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • the number N of guard interval symbols in FIG. 10 is 1, and the symbols in the first symbol set include the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Figure 10(a), that is, the last symbol at the end of the first time unit, or the guard interval shown in Figure 10(b), that is, the second time The first symbol at the beginning of the unit.
  • FIG. 11 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • the number of guard interval symbols N in FIG. 11 is 2, and the symbols in the first symbol set include the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Fig. 11(a), that is, the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit, or it can be the guard interval shown in Fig. 11(b).
  • the guard interval shown in ), that is, the last two symbols at the end of the first time unit may also be the guard interval shown in (c) of FIG. 11, that is, the first two symbols at the beginning of the second time unit.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit do not send channels, and the terminal can select the last N symbols at the end of the first time unit as the guard interval.
  • Each symbol is used as a guard interval, and any one of the above three selection methods can be set according to a predefined rule, and this embodiment of the present application does not impose any limitation.
  • the guard interval determined by the above method has the least impact on the transmission performance of the terminal's uplink channel, ensuring the transmission performance of the communication system.
  • the guard interval can be the last N symbols at the end of the first time unit, or the first N symbols at the end of the second time unit, or from the last N-1 symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. -1 consecutive N symbols selected from the symbols.
  • FIG. 12 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • the number N of guard interval symbols in FIG. 12 is 1, and the symbols in the first symbol set include the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Figure 12(a), that is, the last symbol at the end of the first time unit, or the guard interval shown in Figure 12(b), that is, the second time. The first symbol at the beginning of the unit.
  • FIG. 13 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • the number N of guard interval symbols in FIG. 13 is 2, and the symbols in the first symbol set include the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit.
  • the guard interval can be the guard interval shown in Figure 13(a), that is, the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit, or it can be (b) in Figure 13
  • the guard interval shown in ), that is, the last two symbols at the end of the first time unit may also be the guard interval shown in (c) of FIG. 13, that is, the first two symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit, or the first N symbols at the end of the second time unit.
  • the following methods can be used to determine whether to select the last N symbols at the end of the first time unit as the guard interval or the first N symbols at the beginning of the second time unit as the guard interval:
  • the guard interval is determined according to the type of sending SRS at the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the types of SRS include SRS for positioning and SRS for sounding.
  • the SRS used for sounding can only be sent on the last 6 symbols of the slot, and the SRS used for positioning can be sent on any symbol in the slot.
  • the priority of the SRS used for sounding is higher than that of the SRS used for positioning.
  • N symbols of the SRS used for positioning may be sent as the guard interval.
  • the priority of the SRS used for positioning may be higher than the priority of the SRS used for detection, and this embodiment of the present application does not impose any limitation.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit have different SRS types, and the last N symbols at the end of the first time unit have the same type of SRS.
  • the first N symbols at the beginning of the two time units have the same SRS transmission type.
  • the terminal may determine whether to select the last N symbols or the first N symbols according to the priority of the preset SRS type.
  • the guard interval is determined according to the sending manner of sending the SRS at the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • aperiodic SRS has a higher priority than semi-persistent SRS
  • semi-persistent SRS has a higher priority than periodic SRS. If the last N symbols at the end of the first time unit are used to transmit aperiodic SRS, and the first N symbols of the second time unit are used to transmit periodic SRS, then the first N symbols of periodic SRS can be used as the guard interval .
  • the priority of the periodic SRS and the semi-persistent SRS may be the same.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit send SRS in different ways, and the last N symbols at the end of the first time unit send SRS in the same way.
  • the first N symbols at the beginning of the two time units send SRS in the same manner.
  • the terminal may determine whether to select the last N symbols or the first N symbols according to the priority of the preset SRS transmission mode.
  • the guard interval is determined according to the type of sending the SRS and the sending mode of the SRS according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the network side may set the following priority order: aperiodic detection SRS>periodic detection SRS>aperiodic positioning SRS>periodic positioning SRS.
  • aperiodic detection SRS>periodic detection SRS>aperiodic positioning SRS>periodic positioning SRS aperiodic positioning SRS.
  • other priority orders can also be set, and this embodiment of the present application does not impose any restriction on this.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit have different combinations of SRS transmission types and transmission modes, and the last N symbols at the end of the first time unit send SRS.
  • the type and the combination of the transmission mode are the same, and the combination of the transmission mode and the type of the SRS transmitted in the first N symbols at the beginning of the second time unit is the same.
  • the terminal can determine whether to select the last N symbols or the first N symbols according to the preset SRS type and the priority of the transmission mode combination.
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit both send SRS, and the terminal can select the last N symbols at the end of the first time unit as the guard interval, or Select the first N symbols at the beginning of the second time unit as the guard interval. You can also choose to select consecutive N symbols from the last N-1 symbols at the end of the first time unit and the first N-1 symbols at the beginning of the second time unit The symbol serves as a guard interval.
  • the consecutive N symbols can be selected according to the type of SRS and/or the transmission mode, that is, the terminal according to the priority order of the preset SRS type, or according to the priority order of the SRS transmission mode, or according to the combination of the SRS type and transmission mode Priority order, determine the guard interval, and send the symbols of low priority SRS as the guard interval.
  • the guard interval determined by the above method has the least impact on the terminal sending the SRS, ensuring the transmission of the high-priority SRS.
  • the guard interval is selected from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. Symbols, the symbols on both sides of the guard interval belong to the symbols of different time units.
  • the consecutive N symbols may only include symbols of the same type, or may include symbols of different types. If different types of symbols are included, the number of symbols for transmitting PUSCH in the consecutive N symbols is greater than or equal to the number of symbols for transmitting SRS, or the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUSCH.
  • the terminal selects a symbol with a lower priority for transmission type from the first symbol set according to the distribution of symbols for sending PUSCH and sending SRS in the first symbol set and the preset priority order for sending PUSCH and sending SRS.
  • a guard interval If the priority of sending PUSCH is higher than that of sending SRS, the terminal preferentially selects the symbol for sending PUSCH as the guard interval. If the priority of sending SRS is higher than that of sending PUSCH, the terminal preferentially selects the symbol for sending SRS as the guard interval.
  • the network side can also set a more detailed priority order based on at least one of the type of SRS, the transmission method, and the type of PUSCH carried information. Based on the set priority order, the terminal selects symbols with lower priority as the guard interval .
  • the guard interval can be the last N symbols at the end of the first time unit. Or the first N symbols at the beginning of the second time unit.
  • the terminal may determine the guard interval according to at least one of the type of sending SRS, the mode of sending SRS, and the type of information sending PUSCH based on the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the type of sending SRS includes SRS used for positioning and SRS used for detection.
  • the sending mode of sending SRS includes periodic, semi-continuous, and aperiodic sending.
  • the information type of sending PUSCH includes sending only user information and sending user information at the same time. And UCI.
  • the terminal may determine the guard interval according to the information type of the PUSCH sent by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. If the PUSCH information for the first N symbols or the last N symbols includes UCI, the N symbols for sending the SRS are used as the guard interval, and the type or transmission mode of the SRS is not considered here. In this implementation manner, the priority of sending PUSCH including UCI is higher than that of sending SRS, and the determined guard interval has the least impact on the terminal sending UCI, ensuring the transmission of UCI of PUSCH with high priority.
  • the terminal may determine the guard interval according to the type of SRS sent by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. If the type of the SRS sent for the first N symbols or the last N symbols is the SRS for positioning, the N symbols of the SRS for positioning are sent as the guard interval. If the type of SRS sent for the first N symbols or the last N symbols is an SRS for sounding, the N symbols of the PUSCH are sent as the guard interval. In this implementation, the priority of sending SRS for sounding is higher than that of PUSCH, and the priority of sending PUSCH is higher than that of SRS for positioning.
  • the determined guard interval has the least impact on the terminal sending the sounding SRS, ensuring high-priority detection SRS transmission.
  • the terminal may determine the guard interval according to the sending manner of sending the SRS at the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. If the transmission mode of the first N symbols or the last N symbols of the SRS is periodic, the N symbols of the periodic SRS are used as the guard interval. If the transmission mode of the first N symbols or the last N symbols of the SRS is semi-persistent, the N symbols of the semi-persistent SRS are used as the guard interval. If the SRS transmission mode for the first N symbols or the last N symbols is aperiodic, the N symbols of the PUSCH are transmitted as the guard interval.
  • the priority of sending aperiodic SRS is higher than that of PUSCH, and the priority of sending PUSCH is higher than that of periodic/semi-persistent SRS.
  • the determined guard interval has the least impact on the terminal sending aperiodic SRS, ensuring high-priority aperiodic SRS SRS transmission.
  • FIG. 14 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • the number N of guard interval symbols in FIG. 14 is 1.
  • the guard interval may be the last symbol used to send SRS at the end of the first time unit shown in (a) of FIG. (b)
  • the first symbol used to transmit positioning SRS at the beginning of the second time unit shown in (c) of FIG. 14 may also be the first symbol used to transmit PUSCH without UCI at the end of the first time unit shown in FIG.
  • For the number of guard intervals N is set to 2, and the selection principle is similar, and will not be repeated here.
  • the guard interval is selected from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. Symbols, the symbols on both sides of the guard interval belong to the symbols of different time units.
  • the consecutive N symbols may only include symbols of the same type, or may include symbols of different types. If different types of symbols are included, the number of symbols for sending SRS in consecutive N symbols is greater than or equal to the number of symbols for sending PUSCH.
  • the terminal selects a symbol with a lower priority for transmission type from the first symbol set according to the distribution of symbols for sending PUCCH and sending SRS in the first symbol set and the preset priority order for sending PUCCH and sending SRS.
  • a guard interval As a guard interval.
  • the priority of sending PUCCH is higher than that of sending SRS, and the terminal preferentially selects the symbol for sending SRS as the guard interval.
  • the last N symbols at the end of the first time unit and the first N symbols at the end of the second time unit in the first symbol set have different uplink transmission conditions, and the terminal will send the N symbols of the SRS as protection interval.
  • PUCCH transmission has a higher priority than SRS transmission.
  • the type or transmission method of SRS is not considered here.
  • the determined guard interval has the least impact on the terminal sending PUCCH, ensuring the transmission of PUCCH with high priority.
  • FIG. 15 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • the number N of guard interval symbols in FIG. 15 is 1.
  • the guard interval is selected from the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit to send the SRS.
  • N is set to 2, and the selection principle is similar, and will not be repeated here.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit Select consecutive N symbols in, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the consecutive N symbols may only include symbols of the same type, or may include symbols of different types. If different types of symbols are included, the number of symbols for which channels are not transmitted in consecutive N symbols is greater than or equal to the number of symbols for SRS to be transmitted.
  • the terminal selects the transmission type from the first symbol set with a lower priority according to the distribution of the symbols of the SRS and non-transmission channels in the first symbol set and the preset priority order of the SRS and non-transmission channels.
  • the symbol as the guard interval.
  • the priority of sending SRS is higher than that of not sending the channel, and the terminal preferentially selects the symbol of not sending the channel as the guard interval.
  • the last N symbols at the end of the first time unit and the first N symbols at the end of the second time unit in the first symbol set have different uplink transmission conditions, and the terminal will not send the N symbols of the channel as Guard interval.
  • the priority of sending the SRS is higher than that of the non-sending channel, and the determined guard interval has the least impact on the terminal sending the SRS, ensuring the transmission of the high-priority SRS.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols from the beginning of the second time unit Select consecutive N symbols in, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the consecutive N symbols may only include symbols of the same type, or may include symbols of different types. If different types of symbols are included, the number of symbols for which the channel is not sent in the consecutive N symbols is greater than or equal to the number of symbols for PUSCH to be sent.
  • the terminal selects the transmission type from the first symbol set with a lower priority according to the distribution of symbols for PUSCH and non-transmission channels in the first symbol set and the preset priority order of PUSCH and non-transmission channels.
  • the symbol as the guard interval.
  • the priority of sending PUSCH is higher than that of not sending the channel, and the terminal preferentially selects the symbol of not sending the channel as the guard interval.
  • the last N symbols at the end of the first time unit and the first N symbols at the end of the second time unit in the first symbol set have different uplink transmission conditions, and the terminal will not send the N symbols of the channel as Guard interval.
  • the priority of sending the PUSCH is higher than the non-sending channel, and the determined guard interval has the least impact on the terminal sending the PUSCH, ensuring the transmission of the high-priority PUSCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols from the beginning of the second time unit Select consecutive N symbols in, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the consecutive N symbols may only include symbols of the same type, or may include symbols of different types. If different types of symbols are included, the number of symbols for which the channel is not transmitted in the consecutive N symbols is greater than or equal to the number of symbols for PUCCH to be transmitted.
  • the terminal selects the transmission type from the first symbol set with a lower priority according to the distribution of symbols for PUCCH and non-transmission channels in the first symbol set and the preset priority order of PUCCH and non-transmission channels.
  • the symbol as the guard interval.
  • the priority of sending PUCCH is higher than that of not sending the channel, and the terminal preferentially selects the symbol of not sending the channel as the guard interval.
  • the last N symbols at the end of the first time unit and the first N symbols at the end of the second time unit in the first symbol set have different uplink transmission conditions, and the terminal will not send the N symbols of the channel as Guard interval.
  • the priority of sending the PUCCH is higher than that of the non-sending channel, and the determined guard interval has the least impact on the terminal sending the PUCCH, ensuring the transmission of the high-priority PUCCH.
  • FIG. 16 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of this application.
  • the number of guard interval symbols N in FIG. 16 is taken as 1.
  • the guard interval is selected from the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit to select symbols that do not transmit channels.
  • For the number of guard intervals N is set to 2, and the selection principle is similar, and will not be repeated here.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit Select consecutive N symbols, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the consecutive N symbols may only include symbols of the same type, or may include symbols of different types. If different types of symbols are included, the number of symbols for sending PUSCH in consecutive N symbols is greater than or equal to the number of symbols for sending PUCCH.
  • the terminal selects a symbol with a lower priority for transmission type from the first symbol set according to the distribution of symbols for sending PUCCH and PUSCH in the first symbol set and the preset priority order for sending PUCCH and PUSCH.
  • a guard interval As a guard interval.
  • the priority of sending PUCCH is higher than sending PUSCH, and the terminal preferentially selects the symbol for sending PUSCH as the guard interval.
  • the last N symbols at the end of the first time unit and the first N symbols at the end of the second time unit in the first symbol set have different uplink transmission conditions, and the terminal will send the N symbols of the PUSCH as protection interval.
  • the priority of sending the PUCCH is higher than that of sending the PUSCH, and the determined guard interval has the least impact on the terminal sending the PUCCH, ensuring the transmission of the high-priority PUCCH.
  • PUCCH and PUSCH may have the same priority.
  • FIG. 17 is a schematic diagram of symbol distribution at a time unit junction according to an embodiment of the application.
  • the number N of guard interval symbols in FIG. 17 is taken as 2.
  • the guard interval is 2 consecutive symbols selected from the last 2 symbols at the end of the first time unit and the first 2 symbols at the beginning of the second time unit.
  • the last 2 symbols of the first time unit send PUSCH without UCI
  • the first 2 symbols of the second time unit send PUCCH
  • the guard interval is the last 2 symbols of the first time unit.
  • the last 2 symbols of the first time unit send PUSCH carrying UCI
  • the first 2 symbols of the second time unit send PUCCH.
  • guard interval can be The last 2 symbols of the first time unit, or the first 2 symbols of the second time unit, or the last symbol of the first time unit and the first symbol of the second time unit.
  • N is set to 1, and the selection principle is similar, and will not be repeated here.
  • first symbol set includes two types of symbols: the last N symbols of the first time unit and the first N symbols of the second time unit are irregularly distributed, select continuous N
  • the general principle of a symbol as a guard interval is to include as many symbols as possible that do not transmit the channel.
  • an example is selected for the guard interval of the first symbol set including symbols for transmitting PUSCH, PUCCH, or SRS, and symbols for not transmitting channels.
  • the following examples cannot exhaust all the symbol distribution situations.
  • the terminal determines the guard interval based on the above general principle.
  • the number of guard interval symbols N is set to 2. If the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit, there are three consecutive symbols for which the terminal does not transmit the channel. , The terminal selects two consecutive symbols from these three consecutive symbols as the guard interval, as shown in Figure 18.
  • the number of guard interval symbols N is set to 2. If the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit, there are two consecutive symbols for the terminal not to transmit the channel , The terminal will use two consecutive non-sending channel symbols as the guard interval, as shown in Figure 19.
  • the number of guard interval symbols N is 2. If only one of the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit is a symbol that does not transmit a channel, then The symbol of the non-transmitted channel is used as one symbol of the guard interval, and the other symbol of the guard interval is determined from the symbols adjacent to the symbol of the non-transmitted channel.
  • the guard interval can be a symbol that does not send a channel and a symbol on the left side of the symbol, as shown in Figure 20 (a), or a symbol that does not send a channel and a symbol on the right side of the symbol, as shown in Figure 20 ((a) b) as shown.
  • the type of information sent by two adjacent symbols of the symbol that does not send the channel may be the same or different, and the type of symbol transmission may be the same or different.
  • the selection principle can be Please refer to the above-mentioned embodiment, which will not be repeated here.
  • the number of guard interval symbols N is 2, if the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit include one of the symbols for transmitting PUSCH, PUCCH or SRS , And the symbol of not sending the channel, the priority of not sending the channel is the lowest, then at least one symbol in the determined guard interval is the symbol of not sending the channel.
  • two consecutive non-transmitted channel symbols are used as guard intervals.
  • the symbols of the two non-transmission channels are not continuous, and the guard interval may be the last two symbols at the end of the first time unit, or the first two symbols at the beginning of the second time unit.
  • the terminal can determine the protection according to the type of information sent by the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit (for example, the type of PUSCH sent information, the type of SRS, and/or the sending mode). interval.
  • the type of information sent by the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit for example, the type of PUSCH sent information, the type of SRS, and/or the sending mode.
  • the number of guard interval symbols N is 3, if the last three symbols at the end of the first time unit and the first three symbols at the beginning of the second time unit include one of the symbols for transmitting PUSCH, PUCCH or SRS , And the symbol of not sending the channel, the priority of not sending the channel is the lowest, then at least one symbol in the determined guard interval is the symbol of not sending the channel. As shown in (a) of FIG. 22, two consecutive symbols of the untransmitted channel are used as the two symbols of the guard interval, and the other symbol of the guard interval is the first symbol at the beginning of the second time unit.
  • the symbols of the channel not to be transmitted are discontinuous (such as the occurrence of an interval)
  • select consecutive symbols from the last three symbols at the end of the first time unit and the first three symbols at the beginning of the second time unit.
  • the terminal may send the type of information according to the penultimate symbol at the end of the first time unit and the first symbol at the beginning of the second time unit (for example, the type of PUSCH transmission information, the type of SRS, and/or the transmission mode), Determine the guard interval.
  • the type of information according to the penultimate symbol at the end of the first time unit and the first symbol at the beginning of the second time unit for example, the type of PUSCH transmission information, the type of SRS, and/or the transmission mode
  • the first symbol set includes symbols that do not send channels.
  • the guard intervals of any two symbols including PUSCH, PUCCH, and SRS in the first symbol set are selected below. For example.
  • the number of guard interval symbols N is set to 2. If the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit include the symbol for sending PUSCH and the symbol for sending PUCCH, the pre- Assuming that the priority of PUCCH is higher than PUSCH, as shown in Figure 23(a), the symbol for transmitting PUSCH is used as one symbol of the guard interval, and the other symbol of the guard interval can be the symbol on the right adjacent to the symbol for transmitting PUSCH. Or the symbol on the left.
  • the number of guard interval symbols N is 3. If there are three consecutive symbols for sending PUSCH among the last three symbols at the end of the first time unit and the first three symbols at the beginning of the second time unit, then The terminal uses three consecutive PUSCH symbols as the guard interval, as shown in (b) of FIG. 23.
  • the number of guard interval symbols N is set to 2. If the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit include symbols for transmitting PUSCH carrying UCI and symbols for transmitting SRS The priority of the PUSCH carrying UCI is preset to be higher than that of SRS. As shown in Figure 24(a), the first two symbols at the beginning of the second time unit are used to send SRS, and the terminal uses these two symbols as guard intervals .
  • the number of guard interval symbols N is set to 2. If the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit include symbols for sending PUSCH without UCI, the probe is sent SRS symbols and symbols for sending positioning SRS, the preset detection SRS priority is higher than PUSCH not carrying UCI, the priority of PUSCH not carrying UCI is higher than positioning SRS, as shown in Figure 24 (b), the first The last 2 symbols at the end of the time unit are respectively used to transmit PUSCH without UCI and positioning SRS, and the terminal uses these 2 symbols as a guard interval.
  • the number of guard interval symbols N is 2. If the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit include symbols for transmitting PUSCH without UCI, the transmission period The symbol of SRS and the symbol for transmitting aperiodic SRS, the preset priority of aperiodic SRS is higher than PUSCH without UCI, and the priority of PUSCH without UCI is higher than periodic SRS, as shown in Figure 24(c), The first 2 symbols at the beginning of the second time unit are both used to transmit periodic SRS, and the terminal uses these 2 symbols as a guard interval.
  • the number of guard interval symbols N is set to 2. If the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit include symbols for transmitting PUCCH and symbols for transmitting SRS, the pre- Assuming that the priority of PUCCH is higher than that of SRS, as shown in (a) of FIG. 25, the first two symbols at the beginning of the second time unit are both used to send SRS, and the terminal uses these two symbols as a guard interval.
  • the last 2 symbols at the end of the first time unit and the first 2 symbols at the beginning of the second time unit alternately send PUCCH and SRS, and the terminal can send the last 2 symbols at the end of the first time unit
  • the guard interval either the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit are used as the guard interval, or the first 2 symbols at the beginning of the second time unit are used as the guard interval.
  • the guard interval is from the last N symbols at the end of the first time unit and the second Select consecutive N symbols from the first N symbols at the beginning of the time unit.
  • the number of symbols with no channel sent is greater than or equal to the number of symbols for sending SRS
  • the number of symbols for sending SRS is greater than or equal to the number of symbols for sending PUCCH.
  • the terminal selects the transmission type from the first symbol set according to the symbol distribution of PUCCH, SRS, and non-transmission channels in the first symbol set, and the preset priority order of PUCCH, SRS, and non-transmission channels.
  • the symbol with lower priority is used as the guard interval.
  • the priority of sending SRS is higher than that of PUCCH
  • the priority of sending PUCCH is higher than that of non-sending channels.
  • the terminal preferentially selects the symbols not to send the channel as the guard interval, then selects the symbols for sending PUCCH, and finally the symbols for sending SRS.
  • the preset priority of PUCCH is higher than SRS
  • SRS has a higher priority than non-sending channels.
  • the number N of guard interval symbols is set to 2. Since the last 2 symbols at the end of the first time unit are used to send SRS and not to send channels, the terminal uses the last 2 symbols as the guard interval.
  • the terminal uses the last 2 symbols that do not send channels at the end of the first time unit as the guard interval. Since the priority of PUCCH is higher than SRS, the terminal will set the end of the first time unit to be the third from the bottom The symbol serves as another symbol of the guard interval.
  • the guard interval is from the last N symbols at the end of the first time unit and the second Select consecutive N symbols from the first N symbols at the beginning of the time unit.
  • the consecutive N symbols the number of symbols for not transmitting channels is greater than or equal to the number of symbols for transmitting SRS, and the number of symbols for transmitting SRS is greater than or equal to the symbols for transmitting PUSCH.
  • Number; or, the number of symbols for the channel not to be transmitted is greater than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS.
  • the terminal selects the transmission type from the first symbol set according to the symbol distribution of PUSCH, SRS, and non-transmission channels in the first symbol set, and the preset priority order of PUSCH, SRS, and non-transmission channels.
  • the symbol with lower priority is used as the guard interval. Usually, the priority of not transmitting the channel is the lowest.
  • the terminal preferentially selects the symbol of the non-transmitting channel as the guard interval.
  • the terminal can further send symbols with lower priority types as protection according to the preset priority order of sending PUSCH and sending SRS. interval.
  • the network side can also set a more detailed priority order based on at least one of the type of SRS, the transmission method, and the type of PUSCH carried information. Based on the set priority order, the terminal selects symbols with lower priority as the guard interval .
  • the PUSCH carrying UCI is preset
  • the priority of SRS is higher than that of SRS, and the priority of SRS is higher than that of non-sending channels.
  • the number N of guard interval symbols is set to 2. Since the last 2 symbols at the end of the first time unit are used to send SRS and not to send channels, the terminal uses the last 2 symbols as the guard interval.
  • the number of guard interval symbols N is set to 3.
  • the terminal uses the last 2 symbols that do not send channels at the end of the first time unit as the guard interval. Since the PUSCH carrying UCI has a higher priority than the SRS, the terminal will set the first time The third symbol from the end of the unit is used as another symbol of the guard interval.
  • the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit include sending sounding SRS (or aperiodic SRS), PUSCH not carrying UCI and not sending channel Symbol
  • the preset detection SRS (or aperiodic SRS) has a higher priority than PUSCH without UCI
  • the PUSCH without UCI has a higher priority than the non-transmitted channel.
  • the guard interval symbol The number N is set to 2. Since the last symbol at the end of the first time unit does not send a channel, the first symbol at the beginning of the second time unit is used to send a PUSCH that does not carry UCI, and the terminal uses these 2 symbols as a guard interval.
  • the last three symbols at the end of the first time unit and the first three symbols at the beginning of the second time unit include sending sounding SRS (or aperiodic SRS), PUSCH not carrying UCI and not sending channel Symbols, as shown in Figure 27(b), the number of guard interval symbols N is 3, and the terminal uses the last 2 symbols that do not send channels at the end of the first time unit as the guard interval, because of the detection of SRS (or aperiodic SRS)
  • the priority of is higher than the PUSCH that does not carry UCI, and the terminal uses the first symbol at the beginning of the second time unit as the other symbol of the guard interval.
  • the guard interval is from the last N symbols at the end of the first time unit and the first Two consecutive N symbols are selected from the first N symbols at the beginning of the time unit, among the consecutive N symbols: the number of symbols for sending SRS is greater than or equal to the number of symbols for sending PUSCH, and the number of symbols for sending PUSCH is greater than or equal to the symbols for sending PUCCH Number; or, the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS, and the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUCCH.
  • the terminal selects the priority of the transmission type from the first symbol set according to the distribution of symbols for sending SRS, PUSCH, and PUCCH in the first symbol set, and the preset priority order of sending SRS, PUSCH, and PUCCH.
  • the low symbol serves as a guard interval.
  • PUCCH transmission has the highest priority, and the terminal can preferentially select symbols with lower priority transmission types as the guard interval according to the preset priority order of sending SRS and PUSCH. If the priority of sending PUSCH is higher than that of sending SRS, the terminal preferentially selects the symbol for sending PUSCH as the guard interval. If the priority of sending SRS is higher than that of sending PUSCH, the terminal preferentially selects the symbol for sending SRS as the guard interval.
  • the network side can also set a more detailed priority order based on at least one of the type of SRS, the transmission method, and the type of PUSCH carried information. Based on the set priority order, the terminal selects symbols with lower priority as the guard interval .
  • the priority of PUCCH is preset to be high For PUSCH that does not carry UCI, the priority of PUCCH is higher than that of SRS.
  • the number of guard interval symbols N is 2, and the terminal starts from the last symbol at the end of the first time unit and the second In the first symbol at the beginning of the time unit, the low priority symbol for sending PUSCH without UCI is selected, that is, the last symbol at the end of the first time unit, and then according to the priority of the two symbols adjacent to the symbol In order, the SRS transmission symbol on the left side of the symbol is selected as the other symbol of the guard interval.
  • the last three symbols at the end of the first time unit and the first three symbols at the beginning of the second time unit include symbols for transmitting SRS, PUSCH without UCI, and PUCCH, as shown in Figure 28(b)
  • the number of guard interval symbols N is 3, and the terminal uses the last 2 symbols of the PUSCH that does not carry UCI at the end of the first time unit as the guard interval. Since the priority of PUCCH is higher than SRS, the terminal will set the end of the first time unit The third symbol from the bottom is used as another symbol of the guard interval.
  • the guard interval is from the last N symbols at the end of the first time unit and the second time Select consecutive N symbols from the first N symbols at the beginning of the unit.
  • the consecutive N symbols the number of symbols without channel transmission is greater than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting PUCCH.
  • the terminal selects the transmission type from the first symbol set according to the symbol distribution of PUSCH, PUCCH, and non-transmission channels in the first symbol set, and the preset priority order of PUSCH, PUCCH, and non-transmission.
  • the symbol with lower priority is used as the guard interval.
  • the priority of sending PUCCH is higher than that of PUSCH, and the priority of sending PUSCH is higher than that of not sending channels.
  • the terminal preferentially selects symbols not sending channels as guard intervals, secondly selecting symbols for sending PUSCH, and finally sending symbols for PUCCH.
  • the terminal can also set a more detailed priority order based on the type of PUSCH carried information (for example, the priority of PUSCH carrying UCI is the same as PUCCH, and the priority of PUCCH is higher than that of PUSCH not carrying UCI), and the terminal is based on the set priority In order of level, the symbol with the lower priority is selected as the guard interval.
  • the priority of PUCCH is preset to be high For PUSCH, the priority of PUSCH is higher than that of non-transmitted channels. As shown in Figure 29(a), the number of guard interval symbols N is set to 2.
  • the terminal first starts from the last symbol at the end of the first time unit and the second time unit In the first symbol at the beginning, select the symbol with low priority that does not send the channel, that is, the last symbol at the end of the first time unit, and then select the symbol according to the priority order of the two symbols adjacent to the symbol
  • the symbol for transmitting PUSCH on the left is used as another symbol of the guard interval.
  • the terminal uses the last 2 symbols of the untransmitted channel at the end of the first time unit as the guard interval. Since the priority of PUCCH is higher than PUSCH, the terminal sets the end of the first time unit from the bottom to the end. 3 symbols are used as another symbol of the guard interval.
  • the first symbol set includes four types of symbols, that is, the first symbol set includes symbols for sending SRS, symbols for sending PUSCH, symbols for sending PUCCH, and symbols for not sending channels.
  • the guard interval is to select consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. Among the consecutive N symbols:
  • the number of symbols for the untransmitted channel is greater than or equal to the number of symbols for transmitting PUSCH, the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS, and the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUCCH; or
  • the number of symbols for non-transmission channels is greater than or equal to the number of symbols for transmitting SRS, the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting PUCCH.
  • the terminal according to the symbol distribution of sending SRS, PUSCH, PUCCH, and not sending channels in the first symbol set, and the preset priority order of sending SRS, PUSCH, PUCCH, and not sending channels, from the first symbol set
  • the symbol with the lower priority of the transmission type is selected as the guard interval.
  • the priority of not sending the channel is the lowest, and the priority of sending PUCCH is the highest.
  • the terminal preferentially selects the symbol of not sending the channel as the guard interval.
  • the terminal can select the priority of the transmission type according to the preset priority order of sending SRS and PUSCH.
  • the lower symbol is used as the guard interval, and finally the symbol for sending PUCCH is selected.
  • the network side can also set a more detailed priority order based on at least one of the type of SRS, the transmission method, and the type of PUSCH carried information. Based on the set priority order, the terminal selects symbols with lower priority as the guard interval .
  • the above-mentioned number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS means: the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting positioning SRS (or periodic/semi-persistent SRS), or the symbols for transmitting PUSCH carrying UCI The number is greater than or equal to the number of symbols used to transmit the sounding SRS (or aperiodic SRS).
  • the above-mentioned number of symbols for sending SRS is greater than or equal to the number of symbols for sending PUSCH means: the number of symbols for sending sounding SRS (or aperiodic SRS) is greater than or equal to the number of symbols for sending PUSCH without UCI.
  • the terminal first selects the symbols with low priority not to send channels from the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit , That is, the first symbol at the beginning of the second time unit, and then according to the priority order of the two symbols adjacent to the symbol, the symbol for transmitting the PUSCH on the right side of the symbol is selected as the other symbol of the guard interval.
  • the first symbol set includes the last three symbols at the end of the first time unit and the first three symbols at the beginning of the second time unit
  • the set includes channels for sending SRS, PUSCH, PUCCH, and non-sending channels.
  • the symbol distribution is shown in Figure 30(b).
  • the number of guard interval symbols is 3. Since the two symbols of the non-transmission channel include two symbols for PUSCH transmission, the terminal needs to combine these two non-transmission channels Select the guard interval for the channel transmission situation of the adjacent symbol of the symbol of the symbol.
  • the adjacent symbols of the symbols on the left side of the channel are used to transmit SRS and PUSCH, and the symbols on the right side of the channel are not transmitted.
  • the adjacent symbols are used to transmit PUCCH and PUSCH respectively, where the priority of PUCCH is higher than that of SRS. Therefore, the terminal uses the last 3 symbols at the end of the first time unit as the guard interval.
  • the priority of PUSCH can also be preset to be greater than PUCCH, and the priority of PUSCH carrying UCI can also be preset to be the same as the priority of PUCCH.
  • the embodiment does not impose any limitation.
  • the above embodiments are based on the uplink channel transmission situation of symbols at the boundary of two time units.
  • the symbol of the non-transmission channel is preferentially selected as the guard interval. If there is no symbol of the non-transmission channel at the boundary, the transmission can be preferentially selected.
  • the symbol of SRS or PUSCH is used as the guard interval (the priority order of SRS and PUSCH includes many cases, see above), and finally the symbol of PUCCH is selected to ensure that the selected guard interval transmits at least one of PUSCH, PUCCH, and SRS The impact is minimal, and the transmission capacity of the uplink channel of the system is improved.
  • FIG. 31 is a flowchart of a method for determining a guard interval provided by an embodiment of the application. As shown in FIG. 31, the method provided in this embodiment can be applied to the base station shown in FIG. 1, and the method includes the following steps:
  • Step 201 Determine the N symbols in the first symbol set as guard intervals according to the uplink channel reception situation of the symbols in the first symbol set.
  • the symbols in the first symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain.
  • the first time unit comes first, and the second time unit comes later.
  • the frequency domain subbands corresponding to the first time unit and the second time unit are different, the number of symbols in the first symbol set is greater than N, and N is a positive integer.
  • the symbols in the first symbol set in the embodiments of the present application can be understood as symbols at the junction of the first time unit and the second time unit.
  • the UE can select one symbol from the two symbols at the junction of the first time unit and the second time unit, where the two symbols at the junction can be the first symbol. The last symbol at the end of the time unit and the first symbol at the beginning of the second time unit.
  • the UE can start from the four symbols at the junction of the first time unit and the second time unit, where the four symbols at the junction can be the end of the first time unit The last two symbols of and the first two symbols at the beginning of the second time unit.
  • the uplink channel reception status of the symbols in the first symbol set in the embodiment of the present application includes at least one of receiving PUSCH, receiving PUCCH, receiving SRS, or not receiving channel. That is, any one symbol in the first symbol set can be used to receive PUSCH, receive PUCCH, receive SRS, or not receive channel.
  • the N symbols of the guard interval determined in the embodiment of the present application are consecutive symbols, and the symbols on both sides of the guard interval belong to different time units.
  • the guard interval is located at the junction of the first time unit and the second time unit, the symbol on the left side of the guard interval belongs to the symbol of the first time unit, and the symbol on the right side of the guard interval belongs to the symbol of the second time unit.
  • the network device determines the N symbols in the first symbol set as guard intervals according to the uplink channel reception status of the symbols in the first symbol set.
  • the guard interval of N symbols includes the following situations: (1) the last N symbols at the end of the first time unit; (2) the first N symbols at the beginning of the second time unit; (3) from the first time unit N consecutive symbols selected from the last N-1 symbols at the end and the first N-1 symbols at the beginning of the second time unit.
  • the guard interval may be the last symbol at the end of the first time unit, or the first symbol at the beginning of the second time unit.
  • the guard interval may be the last two symbols at the end of the first time unit, or the first two symbols at the beginning of the second time unit, or the last symbol at the end of the first time unit Symbol and the first symbol at the beginning of the second time unit.
  • the guard interval can be the last three symbols at the end of the first time unit, or the first three symbols at the beginning of the second time unit, or the last three symbols from the end of the first time unit. 2 symbols and 3 consecutive symbols selected from the first 2 symbols at the beginning of the second time unit.
  • Step 202 Perform frequency subband re-adjustment in the determined guard interval.
  • the frequency subband readjustment in the embodiment of the present application refers to that the base station adjusts the bandwidth of the receiver from the bandwidth of the first time unit to the bandwidth of the second time unit. During the frequency subband readjustment period, the base station may not receive or transmit the channel.
  • the method for determining the guard interval is to perform a comprehensive analysis on the uplink channel reception situation of multiple symbols at the junction of two consecutive time units to determine N symbols as the guard interval, where N is a positive integer.
  • the N symbols of the determined guard interval are consecutive symbols, and the symbols on both sides of the guard interval belong to symbols of different time units.
  • the base station may not receive the channel during the determined guard interval, or perform frequency subband re-adjustment, or perform rate matching on symbols belonging to the guard interval among the symbols of the received channel.
  • the guard interval determined by the above method has the least impact on the uplink channel reception performance of the base station, and improves the transmission performance of the system uplink channel.
  • the network device needs to perform a comprehensive analysis based on the uplink channel reception conditions of multiple symbols at the junction of two consecutive time units to determine the guard interval.
  • the uplink channel reception status of the symbol at the junction of two consecutive time units includes at least one of receiving PUSCH, receiving PUCCH, receiving SRS, or not receiving channel.
  • the network device can ensure the guard interval according to the uplink channel reception status of the symbols at the junction of two consecutive time units (that is, the symbol distribution of the uplink channel reception types in the first symbol set) and the priority order of the channel reception types. , The symbol with the lower priority of the channel reception type is used as the guard interval.
  • the network device can select the last symbol at the end of the first time unit, or , The first symbol at the beginning of the second time unit is used as the guard interval. If the channel reception type of the last symbol at the end of the first time unit is different from that of the first symbol at the beginning of the second time unit, the network device uses the channel of the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit. The priority order of the receiving type, a symbol with a lower priority is selected as the guard interval.
  • the network device selects two consecutive symbols as the guard interval from the last two symbols at the end of the first time unit and the first two symbols at the beginning of the second time unit. First, select a symbol with a lower priority from the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit as the guard interval, and then select the priority from the two adjacent symbols of the selected symbol The lower symbol is used as another symbol of the guard interval.
  • the symbols for receiving PUSCH may also be subdivided into symbols for PUSCH carrying UCI and symbols for PUSCH not carrying UCI according to the type of PUSCH carrying information.
  • the network side can set the priority order of the PUSCH symbols carrying different information types.
  • the symbols for receiving SRS can be subdivided into symbols for receiving SRS for positioning and symbols for receiving SRS for sounding according to the type of SRS, and the symbols for receiving SRS can also be divided according to the way of receiving SRS. It is subdivided into symbols for receiving periodic SRS, symbols for receiving aperiodic SRS, and symbols for receiving semi-persistent SRS.
  • the network side may set the priority order of the symbols carrying different SRS types, and/or set the priority order of the symbols carrying the SRS of different transmission modes.
  • the priority order of the channel reception type of the symbols includes the following setting methods:
  • This setting method does not consider the type of PUSCH carried information and the type and receiving method of SRS.
  • the network equipment preferentially selects the symbol that does not receive the channel at the junction of two time units as the guard interval. If there is no symbol that does not receive the channel at the junction, it will be selected first. The symbol of the received SRS is used as the guard interval, the symbol of the receiving PUSCH is selected second, and the symbol of the receiving PUCCH is finally selected.
  • Receiving PUCCH>receiving SRS>receiving PUSCH>not receiving channel This setting method does not consider the type of PUSCH carried information and the type and receiving method of SRS.
  • the network equipment preferentially selects the symbol that does not receive the channel at the junction of two time units as the guard interval. If there is no symbol that does not receive the channel at the junction, it will be selected first.
  • the symbol of the received PUSCH is used as the guard interval, the symbol of the receiving SRS is selected second, and the symbol of the receiving PUCCH is finally selected.
  • Receiving PUCCH receiving PUSCH carrying UCI>receiving PUSCH not carrying UCI>receiving SRS>not receiving channel.
  • This setting method considers the type of information carried by the PUSCH.
  • the PUSCH and PUCCH carrying UCI have the same priority. If there is no symbol that does not receive the channel at the junction of the two time units, the symbol that receives the SRS is selected first as the guard interval, and secondly, the symbol that receives the SRS is selected as the guard interval.
  • the symbol of the PUSCH bearing UCI is used as a guard interval, and the last is to receive the symbol of the PUCCH or the symbol of the PUSCH bearing the UCI.
  • This setting method takes into account the type of SRS. If there is no symbol that does not receive the channel at the junction of two time units, the network device preferentially selects the symbol that receives the positioning SRS as the guard interval. If the symbol does not receive the positioning SRS at the junction, it prefers to receive PUSCH. The symbol of is used as the guard interval, followed by the symbol for receiving and detecting SRS, and finally the symbol for receiving PUCCH.
  • This setting method considers the receiving type of SRS. If there is no symbol that does not receive the channel at the junction of two time units, the network device preferentially selects the symbol of receiving periodic/semi-persistent SRS as the guard interval. If there is no receiving periodic/semi-persistent SRS at the junction Symbol, the symbol for receiving PUSCH is first selected as the guard interval, the symbol for receiving aperiodic SRS is selected second, and the symbol for receiving PUCCH is finally selected.
  • the network device preferentially selects the channel reception type with the lower priority from the first symbol set.
  • the symbol serves as a guard interval.
  • the selected guard interval is consecutive N symbols, and the symbols on the left and right sides of the guard interval belong to different time units.
  • the consecutive N symbols may be symbols of the same channel reception type or symbols of multiple channel reception types. If the consecutive N symbols include symbols of multiple channel reception types, the number of symbols with a low channel reception type priority is greater than or equal to the number of symbols with a high channel reception type priority, that is, the network device preferentially selects the channel reception type first Symbols with lower levels are used as guard intervals.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the N symbols in the first symbol set are determined as guard intervals, including: according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit
  • the type of received information for each symbol, the guard interval is determined, and the type of received information includes receiving only user information, or receiving both user information and uplink control information UCI.
  • the guard interval is determined according to the type of information received by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit, including: taking only N symbols receiving user information as protection interval.
  • the determination of the guard interval includes: determining the guard interval according to the type of the last N symbols at the end of the first time unit and the type of the first N symbols at the beginning of the second time unit to receive user information .
  • the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit are both used to simultaneously receive user information and UCI, according to the sum of the last N symbols at the end of the first time unit
  • the type of receiving information for the first N symbols at the beginning of the second time unit and determining the guard interval include: receiving the UCI type of PUSCH according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit, Determine the guard interval.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit; according to the first symbol set The uplink channel reception situation of the symbols in the first symbol set is determined as the guard interval, including: receiving PUCCH according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit The type of UCI determines the guard interval.
  • the guard interval is selected from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. symbol.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit; according to the first symbol set The uplink channel reception status of the symbols in the first symbol set is determined as the guard interval, including: receiving SRS according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit At least one of type and receiving mode determines the guard interval.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit; according to the first symbol
  • the uplink channel reception situation of the symbols in the set, and the N symbols in the first symbol set are determined as guard intervals, including: receiving SRS according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit At least one of the type of SRS, the receiving mode of SRS, and the information type of receiving PUSCH, determine the guard interval.
  • the guard interval is determined according to the information type of the PUSCH received by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit, including: if the received PUSCH information includes UCI, it will receive The N symbols of SRS are used as guard intervals.
  • the type of SRS includes SRS used for positioning and SRS used for sounding.
  • the type of SRS received is determined according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval includes: receiving N symbols of the SRS used for positioning as the guard interval; or receiving N symbols of the PUSCH as the guard interval.
  • SRS receiving methods include periodic, semi-continuous, and aperiodic receiving, and the protection is determined according to the receiving method of receiving the SRS according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the interval includes: taking the N symbols of the receiving periodic or semi-persistent SRS as the guard interval; or taking the N symbols of the received PUSCH as the guard interval.
  • determining the N symbols in the first symbol set as the guard interval includes: taking the N symbols of the received SRS as the guard interval.
  • determining the N symbols in the first symbol set as the guard interval includes: taking the N symbols of the unreceived channel as the guard interval.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols from the beginning of the second time unit. Select consecutive N symbols from the two symbols, and the number of symbols for receiving PUSCH in the consecutive N symbols is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols from the beginning of the second time unit. Select consecutive N symbols from the symbols, and the number of symbols for unreceived channels in the consecutive N symbols is greater than or equal to the number of symbols for receiving PUSCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols from the beginning of the second time unit. Select consecutive N symbols from the symbols, and the number of symbols for unreceived channels in the consecutive N symbols is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the second time unit Select consecutive N symbols from the first N symbols at the beginning, the number of symbols for unreceived channels among the consecutive N symbols is greater than or equal to the number of symbols for receiving PUSCH, and the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the last N symbols and the first time unit at the end of the first time unit. Two consecutive N symbols are selected from the first N symbols at the beginning of the time unit, the number of symbols for unreceived channels in the consecutive N symbols is greater than or equal to the number of symbols for receiving SRS, and the number of symbols for receiving SRS is greater than or equal to the symbols for receiving PUCCH quantity.
  • the guard interval is from the last N symbols and the first symbol at the end of the first time unit. Select consecutive N symbols from the first N symbols at the beginning of the two time unit, and among the consecutive N symbols:
  • the number of symbols of the unreceived channel is greater than or equal to the number of symbols of the received SRS, and the number of symbols of the received SRS is greater than or equal to the number of symbols of the received PUSCH; or
  • the number of symbols of the unreceived channel is greater than or equal to the number of symbols of the received PUSCH, and the number of symbols of the received PUSCH is greater than or equal to the number of symbols of the received SRS.
  • the guard interval is from the last N symbols at the end of the first time unit and Select consecutive N symbols from the first N symbols at the beginning of the second time unit, and among the consecutive N symbols:
  • the number of symbols for receiving SRS is greater than or equal to the number of symbols for receiving PUSCH, and the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving PUCCH; or
  • the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving SRS, and the number of symbols for receiving SRS is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the end of the first time unit Select consecutive N symbols from the last N symbols of and the first N symbols at the beginning of the second time unit. Among the consecutive N symbols:
  • the number of symbols for the unreceived channel is greater than or equal to the number of symbols for receiving PUSCH, the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving SRS, and the number of symbols for receiving SRS is greater than or equal to the number of symbols for receiving PUCCH; or
  • the number of symbols of the unreceived channel is greater than or equal to the number of symbols of the received SRS, the number of symbols of the received SRS is greater than or equal to the number of symbols of the received PUSCH, and the number of symbols of the received PUSCH is greater than or equal to the number of symbols of the received PUCCH.
  • FIG. 32 is a schematic structural diagram of a terminal device provided by an embodiment of this application. As shown in FIG. 32, the terminal device 300 provided by the embodiment of the present application includes:
  • the processing module 301 is configured to determine the N symbols in the first symbol set as guard intervals according to the uplink channel transmission situation of the symbols in the first symbol set;
  • the symbols in the first symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain, the first time unit and the second time unit.
  • the frequency domain subbands corresponding to the time units are different, and the number of symbols in the first symbol set is greater than N, where N is a positive integer.
  • the N symbols used as the guard interval are consecutive symbols, and the symbols on both sides of the guard interval belong to different time units.
  • the guard interval is the last N symbols at the end of the first time unit.
  • the guard interval is the first N symbols at the beginning of the second time unit.
  • the guard interval is N consecutive symbols selected from the last N-1 symbols at the end of the first time unit and the first N-1 symbols at the beginning of the second time unit.
  • the uplink channel sending status of the symbols in the first symbol set includes at least one of sending a physical uplink shared channel PUSCH, sending a physical uplink control channel PUCCH, sending a listening reference signal SRS, or not sending a channel.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 301 is specifically configured to determine the guard interval according to the type of sending information based on the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the type of sending information includes sending only user information, or, Simultaneously send user information and uplink control information UCI.
  • the processing module 301 is specifically configured to: use only N symbols of user information as the guard interval.
  • the processing module 301 is specifically used for:
  • the guard interval is determined according to the type of user information sent by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the processing module 301 is specifically configured to: The last N symbols of and the first N symbols at the beginning of the second time unit send the UCI type of the PUSCH, and determine the guard interval.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 301 is specifically configured to: determine the guard interval according to the UCI type of the PUCCH sent according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval is to select consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 301 is specifically configured to: determine the guard interval according to at least one of the type and transmission mode of the SRS sent based on the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 301 is specifically configured to send at least one of the SRS type, the SRS transmission mode, and the PUSCH information type according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit, Determine the guard interval.
  • the processing module 301 is specifically configured to: if the information for sending the PUSCH includes UCI, use the N symbols of the sending SRS as the guard interval.
  • the type of SRS includes SRS used for positioning and SRS used for detection.
  • the processing module 301 is specifically configured to: send N symbols of the SRS used for positioning as a guard interval; or
  • the N symbols of the PUSCH are transmitted as the guard interval.
  • the SRS transmission mode includes periodic, semi-continuous, and aperiodic transmission
  • the processing module 301 is specifically configured to: send N symbols of periodic or semi-persistent SRS as a guard interval; or
  • the N symbols of the PUSCH are transmitted as the guard interval.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 301 is specifically configured to: use the N symbols for sending the SRS as the guard interval.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 301 is specifically configured to: use N symbols of the channel not to be sent as the guard interval.
  • the first symbol set includes symbols used to transmit PUSCH and symbols used to transmit PUCCH;
  • the guard interval is to select consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. In the consecutive N symbols, the number of symbols for sending PUSCH is greater than or equal to that for sending PUCCH. Number of symbols.
  • the first symbol set includes symbols for transmitting PUSCH and symbols for not transmitting channels
  • the guard interval is to select consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. In the consecutive N symbols, the number of symbols that do not send the channel is greater than or equal to the PUSCH sent The number of symbols.
  • the first symbol set includes symbols for transmitting PUCCH and symbols for not transmitting channels
  • the guard interval is to select consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. In the consecutive N symbols, the number of symbols that do not send the channel is greater than or equal to the PUCCH sent The number of symbols.
  • the first symbol set includes symbols for sending PUSCH, symbols for sending PUCCH, and symbols for not sending channels;
  • the guard interval is to select consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit. In the consecutive N symbols, the number of symbols that do not send the channel is greater than or equal to the PUSCH sent The number of symbols for sending PUSCH is greater than or equal to the number of symbols for sending PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the second time Select consecutive N symbols from the first N symbols at the beginning of the unit.
  • the number of symbols without channel transmission is greater than or equal to the number of symbols for transmitting SRS, and the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the second time Select consecutive N symbols from the first N symbols at the beginning of the unit, and among the consecutive N symbols:
  • the number of symbols for the untransmitted channel is greater than or equal to the number of symbols for transmitting SRS, and the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUSCH; or
  • the number of symbols for not transmitting channels is greater than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS.
  • the guard interval is from the last N symbols at the end of the first time unit and the second Select consecutive N symbols from the first N symbols at the beginning of the time unit, and among the consecutive N symbols:
  • the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting PUCCH; or
  • the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS, and the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUCCH.
  • the guard interval is from the end of the first time unit.
  • the number of symbols for not transmitting channels is greater than or equal to the number of symbols for transmitting PUSCH, the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS, and the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUCCH; or
  • the number of symbols for non-transmission channels is greater than or equal to the number of symbols for transmitting SRS, the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting PUCCH.
  • the terminal device 300 further includes: a transceiver module 302.
  • the transceiver module 302 performs corresponding operations in the determined guard interval.
  • the processing module 301 is specifically configured to perform at least one of the following during the determined guard interval: do not send/send the channel, perform frequency subband re-adjustment, and perform rate matching on symbols belonging to the guard interval among the symbols sent on the uplink channel.
  • the terminal device provided in the embodiment of the present application is used to implement the technical solution of the terminal device of the foregoing method embodiment, and its implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 33 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • the network device 400 provided by the embodiment of the present application includes:
  • the processing module 401 is configured to determine the N symbols in the first symbol set as guard intervals according to the uplink channel reception situation of the symbols in the first symbol set;
  • the symbols in the first symbol set belong to the symbols at the end of the first time unit and the beginning of the second time unit.
  • the first time unit and the second time unit are two consecutive time units in the time domain, the first time unit and the second time unit.
  • the frequency domain subbands corresponding to the time units are different, and the number of symbols in the first symbol set is greater than N, where N is a positive integer.
  • the N symbols used as the guard interval are consecutive symbols, and the symbols on both sides of the guard interval belong to different time units.
  • the guard interval is the last N symbols at the end of the first time unit.
  • the guard interval is the first N symbols at the beginning of the second time unit.
  • the guard interval is N consecutive symbols selected from the last N-1 symbols at the end of the first time unit and the first N-1 symbols at the beginning of the second time unit.
  • the uplink channel reception status of the symbols in the first symbol set includes at least one of receiving a physical uplink shared channel PUSCH, receiving a physical uplink control channel PUCCH, receiving a listening reference signal SRS, or not receiving a channel.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 401 is specifically configured to: determine the guard interval according to the type of the received information of the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit, the type of received information includes receiving only user information, or , And receive user information and uplink control information UCI at the same time.
  • the processing module 401 is specifically configured to: use only N symbols for receiving user information as a guard interval.
  • the processing module 401 is specifically used for:
  • the guard interval is determined according to the type of receiving user information of the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the processing module 401 is specifically used to:
  • the guard interval is determined according to the UCI type of the PUSCH received by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 401 is specifically configured to: determine the guard interval according to the UCI type of the PUCCH received by the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval is to select consecutive N symbols from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 401 is specifically configured to determine the guard interval according to at least one of the receiving type and receiving mode of the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 401 is specifically configured to: receive at least one of the SRS type, the SRS receiving mode, and the PUSCH information type according to the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit, Determine the guard interval.
  • the processing module 401 is specifically configured to: if the received PUSCH information includes UCI, use the N symbols of the received SRS as a guard interval.
  • the type of SRS includes SRS used for positioning and SRS used for detection, and the processing module 401 is specifically configured to: use N symbols of the SRS used for positioning as a guard interval; or
  • the N symbols of the received PUSCH are used as guard intervals.
  • the SRS receiving mode includes periodic, semi-persistent, and aperiodic receiving
  • the processing module 401 is specifically configured to: receive N symbols of periodic or semi-persistent SRS as a guard interval; or
  • the N symbols of the received PUSCH are used as guard intervals.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 401 is specifically configured to: use the N symbols of the received SRS as a guard interval.
  • the guard interval is the last N symbols at the end of the first time unit or the first N symbols at the beginning of the second time unit;
  • the processing module 401 is specifically configured to: use N symbols of the unreceived channel as a guard interval.
  • the guard interval is the last N symbols from the end of the first time unit and the first N symbols from the beginning of the second time unit Select consecutive N symbols in, and the number of symbols for receiving PUSCH among the consecutive N symbols is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit Select consecutive N symbols, and the number of symbols for unreceived channels in the consecutive N symbols is greater than or equal to the number of symbols for receiving PUSCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the first N symbols at the beginning of the second time unit Select consecutive N symbols, and the number of symbols of the unreceived channel among the consecutive N symbols is greater than or equal to the number of symbols of the received PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the beginning of the second time unit Select consecutive N symbols from the first N symbols, the number of symbols for unreceived channels in the consecutive N symbols is greater than or equal to the number of symbols for receiving PUSCH, and the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the second time Select consecutive N symbols from the first N symbols at the beginning of the unit.
  • the number of symbols for unreceived channels is greater than or equal to the number of symbols for receiving SRS, and the number of symbols for receiving SRS is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the last N symbols at the end of the first time unit and the second time Select consecutive N symbols from the first N symbols at the beginning of the unit, and among the consecutive N symbols:
  • the number of symbols of the unreceived channel is greater than or equal to the number of symbols of the received SRS, and the number of symbols of the received SRS is greater than or equal to the number of symbols of the received PUSCH; or
  • the number of symbols of the unreceived channel is greater than or equal to the number of symbols of the received PUSCH, and the number of symbols of the received PUSCH is greater than or equal to the number of symbols of the received SRS.
  • the guard interval is from the last N symbols at the end of the first time unit and the second Select consecutive N symbols from the first N symbols at the beginning of the time unit, and among the consecutive N symbols:
  • the number of symbols for receiving SRS is greater than or equal to the number of symbols for receiving PUSCH, and the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving PUCCH; or
  • the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving SRS, and the number of symbols for receiving SRS is greater than or equal to the number of symbols for receiving PUCCH.
  • the guard interval is from the end of the first time unit.
  • the number of symbols for the unreceived channel is greater than or equal to the number of symbols for receiving PUSCH, the number of symbols for receiving PUSCH is greater than or equal to the number of symbols for receiving SRS, and the number of symbols for receiving SRS is greater than or equal to the number of symbols for receiving PUCCH; or
  • the number of symbols of the unreceived channel is greater than or equal to the number of symbols of the received SRS, the number of symbols of the received SRS is greater than or equal to the number of symbols of the received PUSCH, and the number of symbols of the received PUSCH is greater than or equal to the number of symbols of the received PUCCH.
  • the network device 400 further includes: a transceiver module 402.
  • the transceiver module 402 is configured to perform frequency subband re-adjustment in a determined guard interval.
  • the network device provided in the embodiment of the present application is used to implement the technical solution of the network device of the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again.
  • the division of the various modules of the above terminal device or network device is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated.
  • these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware.
  • the processing module may be a separate processing element, or it may be integrated in a chip of the above-mentioned device for implementation.
  • each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (FPGA), etc.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • CPU central processing unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • FIG. 34 is a schematic diagram of the hardware structure of a terminal device according to an embodiment of the application.
  • the terminal device 500 may include: a transceiver 501, a processor 502, and a memory 503; the memory 503 stores computer-executable instructions; the processor 502 executes the computer-executable instructions stored in the memory 503, so that The processor 502 executes the technical solution of the method for determining the guard interval on the terminal device side in any of the foregoing method embodiments.
  • the processor 502 may be a chip.
  • FIG. 35 is a schematic diagram of the hardware structure of a network device provided by an embodiment of this application.
  • the network device 600 may include: a transceiver 601, a processor 602, and a memory 603; the memory 603 stores computer-executable instructions; the processor 602 executes the computer-executable instructions stored in the memory 603, so that The processor 602 executes the technical solution of the method for determining the guard interval on the network device side in any of the foregoing method embodiments.
  • the processor 602 may be a chip.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer-executable instruction, and when the computer-executable instruction is executed by a processor, it is used to implement the terminal in any of the foregoing method embodiments Technical solutions on the equipment side.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, it is used to implement the network in any of the foregoing method embodiments.
  • Technical solutions on the equipment side are provided.
  • the embodiment of the present application also provides a program, when the program is executed by the processor, it is used to execute the technical solution on the terminal device side in any of the foregoing method embodiments.
  • the embodiment of the present application also provides a program, when the program is executed by the processor, it is used to execute the technical solution on the network device side in any of the foregoing method embodiments.
  • the embodiments of the present application also provide a computer program product, including program instructions, which are used to implement the technical solutions on the terminal device side in any of the foregoing method embodiments.
  • the embodiments of the present application also provide a computer program product, including program instructions, which are used to implement the technical solutions on the network device side in any of the foregoing method embodiments.
  • the embodiment of the present application also provides a chip, which includes a processing module and a communication interface, and the processing module can execute the technical solution on the terminal device side in the foregoing method embodiment.
  • the chip also includes a storage module (such as a memory), the storage module is used to store instructions, the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the terminal device side Technical solutions.
  • a storage module such as a memory
  • the storage module is used to store instructions
  • the processing module is used to execute the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to execute the terminal device side Technical solutions.
  • An embodiment of the present application also provides a chip, which includes a processing module and a communication interface, and the processing module can execute the technical solution on the network device side in the foregoing method embodiment.
  • the chip also includes a storage module (such as a memory), the storage module is used to store instructions, the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the network device side Technical solutions.
  • a storage module such as a memory
  • the storage module is used to store instructions
  • the processing module is used to execute the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to execute the network device side Technical solutions.
  • At least two refers to two or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship; in the formula, the character “/” indicates that the associated objects before and after are in a “division” relationship.
  • “The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple indivual.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution.
  • the execution order of the processes should be determined by their functions and internal logic, and should not be used for the implementation of this application.
  • the implementation process of the example constitutes any limitation.

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

Abstract

Des modes de réalisation selon la présente invention concernent un procédé et un dispositif de détermination d'intervalle de garde, et un support d'informations, pouvant améliorer la performance de transmission de canaux en liaison montante dans un système. Le procédé consiste : à analyser de manière exhaustive un état de transmission de canal en liaison montante de plusieurs symboles à une jonction de deux unités de temps consécutives, à prendre en compte un ordre de priorité de types de transmission de canaux prédéfinis, et par conséquent à déterminer N symboles à la jonction pour servir d'intervalle de garde, où N est un entier positif. Les N symboles de l'intervalle de garde sont des symboles consécutifs, et des symboles des deux côtés de l'intervalle de garde appartiennent à des unités de temps respectives différentes. Un terminal règle de nouveau une sous-bande de fréquence à l'intervalle de garde déterminé. Un intervalle de garde déterminé par le biais du procédé a le moins d'impact sur des transmissions de canal en liaison montante d'un terminal, améliorant ainsi la performance de transmission de canaux en liaison montante dans un système.
PCT/CN2020/090666 2020-05-15 2020-05-15 Procédé et dispositif de détermination d'intervalle de garde, et support d'informations WO2021227071A1 (fr)

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CN202080098948.9A CN115315930B (zh) 2020-05-15 2020-05-15 保护间隔的确定方法、设备及存储介质

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