CN115315930B

CN115315930B - Method, device and storage medium for determining guard interval

Info

Publication number: CN115315930B
Application number: CN202080098948.9A
Authority: CN
Inventors: 贺传峰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2023-10-13
Anticipated expiration: 2040-05-15
Also published as: WO2021227071A1; CN115315930A

Abstract

The embodiment of the application provides a method, equipment and a storage medium for determining a guard interval, which are used for improving the transmission performance of a system uplink channel. The method comprises the following steps: by comprehensively analyzing the uplink channel transmission conditions of a plurality of symbols at the junction of two continuous time units, N symbols are determined from the junction to serve as a protection interval by combining the priority sequence of the preset channel transmission types, wherein 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. And the terminal performs frequency sub-band readjustment at the determined guard interval. The guard interval determined by the method has the smallest influence on the transmission performance of the uplink channel of the terminal, and the transmission performance of the uplink channel of the system is improved.

Description

Method, device and storage medium for determining guard interval

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method, equipment and storage medium for determining a guard interval.

Background

The New air interface (NR) system mainly supports enhanced mobile bandwidth (Enhanced Mobile Broadband, eMBB) service, and meets the requirements of high rate, high spectral efficiency and large bandwidth. In practical applications, besides the eMBB service, there are various other service types, such as data transmission service of industrial internet of things sensors, monitoring cameras and wearable devices, and the terminals supporting these services have the characteristics of large connection number, low power consumption and low cost, and compared with the terminals supporting the eMBB service, the hardware capability is reduced, such as reduced supported bandwidth, reduced processing speed, reduced antenna number, etc. Therefore, it is necessary to optimize the NR system for low-capability terminals supporting the other traffic types described above, and the corresponding system is called an NR-light system.

In order to improve the performance of channel transmission, the NR system considers that channel transmission is performed in a frequency hopping manner, that is, the bandwidths of channel resources in different time units may be different. Accordingly, the terminal needs to retune (retuning) the receiver bandwidth from one bandwidth to another, during which the terminal cannot receive or transmit channels, which would affect the transmission performance of the system channels.

Disclosure of Invention

The embodiment of the application provides a method, equipment and a storage medium for determining a guard interval, which ensure the transmission performance of an uplink channel of a communication system.

In a first aspect, an embodiment of the present application provides a method for determining a guard interval, where the method includes: according to the uplink channel sending condition of the symbols in the first symbol set, N symbols in the first symbol set are determined to be guard intervals; the symbols in the first symbol set belong to symbols at the tail end of a first time unit and the beginning end of a second time unit, the first time unit and the second time unit are two time units which are continuous in time domain, frequency domain sub-bands corresponding to the first time unit and the second time unit are different, and the number of the symbols in the first symbol set is larger than N, wherein N is a positive integer.

In a second aspect, an embodiment of the present application provides a method for determining a guard interval, where the method includes: according to the uplink channel receiving condition of the symbols in the first symbol set, N symbols in the first symbol set are determined to be guard intervals; the symbols in the first symbol set belong to symbols at the tail end of a first time unit and the beginning end of a second time unit, the first time unit and the second time unit are two time units which are continuous in time domain, frequency domain sub-bands corresponding to the first time unit and the second time unit are different, and the number of the symbols in the first symbol set is larger than N, wherein N is a positive integer.

In a third aspect, an embodiment of the present application provides a terminal device, including: the processing module is used for determining N symbols in the first symbol set as the protection intervals according to the uplink channel transmission condition of the symbols in the first symbol set; the symbols in the first symbol set belong to symbols at the tail end of a first time unit and the beginning end of a second time unit, the first time unit and the second time unit are two time units which are continuous in time domain, frequency domain sub-bands corresponding to the first time unit and the second time unit are different, and the number of the symbols in the first symbol set is larger than N, wherein N is a positive integer.

In a fourth aspect, an embodiment of the present application provides a network device, including: the processing module is used for determining N symbols in the first symbol set as the protection intervals according to the uplink channel receiving condition of the symbols in the first symbol set; the symbols in the first symbol set belong to symbols at the tail end of a first time unit and the beginning end of a second time unit, the first time unit and the second time unit are two time units which are continuous in time domain, frequency domain sub-bands corresponding to the first time unit and the second time unit are different, and the number of the symbols in the first symbol set is larger than N, wherein N is a positive integer.

In a fifth aspect, an embodiment of the present application provides a terminal device, including: a transceiver, a processor, a memory; the memory stores computer-executable instructions; the processor executing computer-executable instructions stored in the memory causes the processor to perform the method as in any of the first aspects.

In a sixth aspect, an embodiment of the present application provides a network device, including: a transceiver, a processor, a memory; the memory stores computer-executable instructions; the processor executing computer-executable instructions stored in the memory causes the processor to perform the method as in any of the second aspects.

In a seventh aspect, embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for performing the method of any one of the first aspects when the computer-executable instructions are executed by a processor.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for performing the method of any of the second aspects when the computer-executable instructions are executed by a processor.

The embodiment of the application provides a method, equipment and a storage medium for determining a guard interval, which are used for improving the transmission performance of a system uplink channel. The method comprises the following steps: and comprehensively analyzing the uplink channel transmission conditions of a plurality of symbols at the junction of two continuous time units, and determining N symbols from the junction as a protection interval, wherein 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. And the terminal performs frequency sub-band readjustment at the determined guard interval. The guard interval determined by the method has the smallest influence on the transmission performance of the uplink channel of the terminal, and the transmission performance of the uplink channel of the system is improved.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a comb structure of a sounding reference signal SRS;

fig. 3 is a schematic frequency hopping diagram of a sounding reference signal SRS at a frequency domain resource location;

fig. 4 is a flowchart of a method for determining a guard interval according to an embodiment of the present application;

fig. 5 is a schematic diagram of positions of a guard interval and a first time unit and a second time unit in a time domain according to an embodiment of the present application;

FIG. 6 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 7 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 8 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 9 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 10 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 11 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 12 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 13 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 14 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 15 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 16 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 17 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 18 is a diagram illustrating symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 19 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 20 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 21 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 22 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 23 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 24 is a diagram illustrating symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 25 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 26 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 27 is a diagram illustrating symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 28 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 29 is a diagram illustrating symbol distribution at a time cell boundary according to an embodiment of the present application;

FIG. 30 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application;

fig. 31 is a flowchart of a method for determining a guard interval according to an embodiment of the present application;

fig. 32 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 33 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 34 is a schematic hardware structure of a terminal device according to an embodiment of the present application;

fig. 35 is a schematic hardware structure of a network device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description of embodiments of the application, in the claims and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system includes a network device and a plurality of terminal devices, such as UE1 to UE6 shown in fig. 1, communicatively connected to the network device. The network device may be a Base Station (BS), which may be a multi-beam BS or a single-beam BS. The terminal device may be a fixed terminal device or a mobile terminal device. The base station and UEs 1 to 6 constitute a communication system in which the base station transmits a synchronization signal block SSB, and the UE can determine time-frequency domain resources of a physical downlink control channel (physical downlink control channel, PDCCH) based on the SSB to perform PDCCH detection. The UE transmits uplink data, e.g. user data, uplink control information UCI, on a physical uplink shared channel (physical uplink shared channel, PUSCH) scheduled by downlink control information DCI of the PDCCH. The UE may also transmit UCI on a physical uplink control channel (physical uplink control channel, PUCCH). In addition, the UE may transmit SRS on time-frequency resources of the sounding reference signal (sounding reference signal, SRS) according to the higher layer parameter indication for the base station to perform channel quality detection, estimation, or beam management.

The technical scheme of the embodiment of the application is mainly applied to communication systems based on NR technology, such as a fifth generation mobile communication technology (5 th generation mobile networks, abbreviated as 5G) communication system, an NR-light system and the like. The method can also be applied to other communication systems, as long as the existence entity in the communication system needs to instruct to communicate with another entity, the other entity needs to interpret data transmission in some way, for example, the method can be applied to scheduling multiple data blocks between network equipment and terminal equipment, or two terminal equipment, one of which bears the function of accessing a network, and the like. Specifically, the communication system may be, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet radio service (General Packet Radio Service, GPRS) system, long term evolution (Long Term Evolution, LTE) system, long term evolution advanced LTE-A (LTE Advanced) system, LTE frequency division duplex (Freqncy Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD) system, universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS) and the like.

The terminal equipment in the technical scheme of the embodiment of the application can be a wireless terminal or a wired terminal. A wireless terminal may be a device that provides voice and/or other traffic data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. A wireless terminal may communicate with one or more core networks via a radio access network (Radio Access Network, RAN for short), which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiation Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDA) and the like. A wireless Terminal may also be referred to as a system, subscriber Unit (Subscriber Unit), subscriber Station (Subscriber Station), mobile Station (Mobile Station), mobile Station (Mobile), remote Station (Remote Station), remote Terminal (Remote Terminal), access Terminal (Access Terminal), user Terminal (User Terminal), user Agent (User Agent), user equipment (User Device or User Equipment), without limitation.

The network device in the technical solution of the embodiment of the present application is a device deployed in a radio access network to provide a radio communication function, which may be a base station (Base Transceiver Station, abbreviated as BTS) in global mobile communications (Global System of Mobile communication, abbreviated as GSM) or code division multiple access (Code Division Multiple Access, abbreviated as CDMA), a base station (NodeB, abbreviated as NB) in wideband code division multiple access (Wideband Code Division Multiple Access, abbreviated as WCDMA), an evolved base station (Evolutional Node B, abbreviated as eNB or eNodeB) in LTE, a relay station or an access point, a transceiving point (transmission reception point, TRP) in a new air interface NR network, a next generation node B (gNB), or a base station in other future network systems, and the like, which is not limited herein.

Before introducing the technical solution of the embodiment of the present application, first, the transmission configuration conditions of the physical uplink control channel PUCCH, the physical uplink shared channel PUSCH, and the sounding reference signal SRS in the NR system according to the embodiment of the present application are described in detail.

The PUCCH is used for carrying uplink control information UCI, and supports 5 different formats, and according to the number of symbols occupied in the time domain, the PUCCH can be divided into two types, i.e., a short format and a long format, as shown in table 1, where the short format occupies 1-2 symbols, can carry 1-2bit information, and the long format occupies 4-14 symbols, and can carry information greater than 2 bits.

TABLE 1

The base station indicates a slot for transmitting the DCI or the ACK/NACK corresponding to the PDSCH scheduled by the DCI through a PDSCH-to-HARQ_ feedback timing indicator information field in the downlink control information DCI. PDSCH-to-harq_ feedback timing indicator is used to indicate the value of k, which represents the time domain position offset value of ACK/NACK with respect to DCI or DCI scheduled PDSCH. That is, DCI or DCI scheduled PDSCH is transmitted in slot n and corresponding ACK/NACK is transmitted in slot n+k. For DCI format 1_0, the information field is 3 bits long, and the corresponding value ranges are {1, 2, 3, 4, 5, 6, 7, 8}. For DCI format 1_1, the base station firstly configures a set through higher layer signaling, wherein the set comprises I elements, each element indicates the value of k, and the information domain length isI is a positive integer not greater than 8.

After determining the slot in which the PUCCH is located, the resource of the PUCCH needs to be determined. 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 may obtain the PUCCH resource set from PUCCH-resource com mon in the system message. The UE transmits HARQ-ACK information in the initial uplink bandwidth part UL BWP according to the PUCCH resources in the PUCCH resource set. As shown in table 2, PUCCH resource set index in the following table is indicated by PUCCH resource set index. The UE is based on the number n of the first CCE (Control Channel Elements, control channel element) of the PDCCH scheduling PDSCH _CCE,0 And PUCCH resource indicator information indicated in the DCI, determining PUCCH resources in the PUCCH resource set. The determined PUCCH resources include a slot in which the PUCCH resource is located, a Cyclic Shift (CS) and a PRB (Physical Resource Block ) of a frequency domain.

TABLE 2

The UE may be configured with 1-4 dedicated PUCCH resource sets. Wherein the first PUCCH resource set only supports the UE to determine PUCCH resources in the PUCCH resource set according to the number of the first CCE of the PDCCH scheduling the PDSCH and PUCCH resource indicator information indicated in the DCI. The base station configures 1-4 PUCCH resource sets for the UE through RRC signaling. The first PUCCH resource set may be configured with 1 to 32 PUCCH resources, where each PUCCH resource only supports format0 and format1 in table 1 and only can carry UCI of 1-2 bits. If the second, third and fourth PUCCH resource sets are configured, each PUCCH resource set may be configured with 1 to 8 PUCCH resources, and each PUCCH resource in the PUCCH resource sets only supports format2, format3 and format4 in table 1 and may carry UCI with more than 2 bits. Each PUCCH resource configuration includes resources of different PUCCH formats, including a starting symbol index, a symbol number, code domain information, etc. within a slot, and formats 2 and 3 further include the number of PRBs of the PUCCH and the number of starting PRBs. The resources and the number of bits carried for various PUCCH formats can be seen in table 1.

Each PUCCH resource set is configured with the maximum number of bits of UCI that the PUCCH resource set can carry, respectively. And the UE determines a first PUCCH resource set capable of meeting the bit number according to the actual bit number borne by the PUCCH. Then, the UE determines PUCCH resources in the PUCCH resource set according to the number of the first CCE of the PDCCH scheduling the PDSCH and PUCCH resource indicator information indicated in the DCI.

In the NR system, a base station schedules PUSCH transmission by transmitting an uplink grant (UL grant, DCI format 0_0 or DCI format 0_1). When the base station schedules uplink data transmission through DCI of UL grant, a field TimeDomainResourceAllocation (TDRA) is carried in the DCI, where the TDRA field is 4 bits, and may indicate 16 different rows in a resource allocation table, where each row includes different resource allocation combinations, for example, a starting position S of PUSCH, a length L, k2, and different types. Wherein k2 represents the number of offset slots between the slot where the DCI is located and the slot where the PUSCH is located, and specifically, see table 3 and table 4.

TABLE 3 Table 3

TABLE 4 Table 4

μ _PUSCH	j
		0	1
1	1
		2	2
3	3

Table 4 shows the values of j, where μ _PUSCH For sub-carrier spacing of PUSCH, μ _PUSCH The subcarrier spacings are 15kHz,30kHz,60kHz,120kHz, respectively, for 0,1,2, 3.

The Type of PUSCH time domain resource allocation includes Type a and Type B. The value ranges of the S candidate value and the L candidate value corresponding to the Type A and the Type B are different. Type A is mainly oriented to slot-based service, S is relatively forward, and L is relatively long. Type B mainly faces to URLLC service, the time delay requirement is higher, so that the position of S is flexible so as to transmit the URLLC service arriving at any time, L is shorter, and the transmission time delay can be reduced. The range of values for S and L in one embodiment is shown in Table 5.

TABLE 5

There are two allocation methods of frequency domain resources of PUSCH: type0 and Type1. The base station may be configured by high-level signaling, or may be dynamically indicated by DCI. Type0 frequency domain resource allocation method indicates RBGs (Resource Block Group, resource block groups) allocated to UEs by bitmap, and the number of resource blocks RBs included in the RBGs is related to higher layer parameter configurations (Configuration 1 and Configuration 2) and BWP sizes (Bandwidth Part Size), as shown in table 6. The Type1 frequency domain resource allocation method combines the initial position (S) and the length (L) of the resource to form an RIV value (resource indication value). One group (S, L) corresponds to one RIV value one by one, and the UE can deduce the corresponding (S, L) through the RIV value. S denotes the position of the virtual RB, and L denotes the number of consecutive RBs allocated.

TABLE 6

BWP size	Configuration 1	Configuration 2
			1–36	2	4
37–72	4	8
			73–144	8	16
145–275	16	16

In the NR system, the uplink reference signals include a demodulation reference signal DMRS (Demodulation Reference Signals) and a sounding reference signal SRS. Both DMRS and SRS may be used for channel estimation, DMRS being transmitted with PUCCH or PUSCH and therefore being an estimation of the uplink channel from the same frequency location, whereas SRS signals are not transmitted with PUCCH or PUSCH and therefore being an estimation of the uplink channel from a different frequency location.

For SRS reference signals: the network may configure one or more SRS resource sets (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. One SRS resource set may include one or more SRS resources, where the time-frequency domain resource occupied by each SRS resource is:

the SRS occupies 1, 2 or 4 consecutive symbols among the last 6 symbols in slot in the time domain. For SRS-for-positioning, the SRS occupies 1, 2, 4, 8, 12 consecutive symbols in all 14 symbols in slot in the time domain. There are three types of time domain transmission methods of SRS: periodic, semi-continuous, and aperiodic. The period SRS is a period for configuring the SRS through the period and the offset of the slot level, wherein the minimum number is 1 slot, and the maximum number is 2560 slots; the semi-persistent SRS is based on periodic transmission, and adds activation and deactivation signaling of the MAC layer; the aperiodic SRS is triggered by DCI format 0_1 and DCI format 1_1, where the SRS request indicates a specific SRS resource set, and DCI format 2-3 may trigger the aperiodic SRS only in special case (SRS switch).

The SRS may occupy 4-272 RBs (Resource blocks) in the frequency domain. The maximum bandwidth of BWP in NR is 275 RBs, and the frequency domain resource bandwidth of SRS may satisfy sounding under BWP configuration 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 maps one RE (Resource Element or Resource Element) for every other subcarrier, and comb4 maps one RE for every other subcarrier, see fig. 2. The frequency-domain resource location of the SRS also supports frequency hopping, and fig. 3 shows a frequency hopping schematic diagram of the frequency-domain resource location of the SRS, where the SRS occupies the last 4 symbols of a slot, and the frequency-domain resource locations corresponding to the last 4 symbols are different as shown in fig. 3.

One SRS resource may have 1, 2 or 4 ports, each of which occupies the same SRS resource and is distinguished from each other by orthogonality of ZC sequences. The SRS of the plurality of UEs may be Time-division multiplexed (TDM) in one slot, or may be Frequency-division multiplexed (FDM) in a comb structure.

Collision handling of SRS with other channels:

1) When SRS is transmitted in the same slot as PUCSH, SRS should be transmitted after PUSCH;

2) When the SRS and the PUCCH are in the same carrier, and the periodic or semi-continuous SRS is configured in the same symbol as the PUCCH which only carries channel state information (channel state information, CSI) report or L1-RSRP report, the UE does not transmit the SRS;

3) When the periodic/semi-persistent SRS is configured or the aperiodic SRS is triggered within the same symbol as the PUCCH carrying HARQ-ACK and/or SR, the UE does not transmit the SRS;

4) When carriers are aggregated, SRS on one carrier and PUSCH/PUCCH/DM-RS/PT-RS on the other carrier cannot be transmitted on the same symbol;

5) When SRS configurations of three different time domain modes collide, the priority order is: non-periodic > semi-persistent > period.

The NR system is designed mainly for supporting the eMBB service, and its main technology is to meet the requirements of high rate, high spectral efficiency and large bandwidth. In fact, there are also a number of different traffic types besides embbs, such as: sensor networks, video monitoring, wearable, etc., which have different requirements than the eMBB service in terms of rate, bandwidth, power consumption, cost, etc. The capabilities of terminals supporting these services are reduced compared to terminals supporting eMBB, such as reduced supported bandwidth, relaxed processing time, reduced antenna count, etc. In order to better support other traffic types than the eMBB traffic, it is necessary to optimize the NR system for these traffic and the corresponding low capability terminals, such a system being called NR-light system.

In the NR-light system, the bandwidth supported by the low-capability terminal is limited, and in order to improve the performance of channel transmission, the channel transmission may be performed by using a frequency hopping manner. The terminal needs to retune (retuning) the receiver bandwidth from one bandwidth to another, during which the terminal cannot receive and transmit channels, which would affect the transmission performance of the system channels. Because the flexibility of the time domain resource allocation of the control channel in the NR system is higher, corresponding guard intervals need to be defined under different control channel resource allocation to ensure the transmission performance of the NR-Light system.

In this regard, the embodiment of the present application provides a method for determining a guard interval, which considers that the bandwidth retuning (or called frequency subband retuning) occurs at the boundary of two consecutive time units (for example, the first time unit and the second time unit), and the bandwidths of the two consecutive time units are different, so that the guard interval is determined from the boundary of the two consecutive time units based on the uplink channel transmission condition of the symbol at the boundary of the two time units. The guard interval in the embodiment of the present application may be one symbol or a plurality of consecutive symbols, where the symbol on the left side of the guard interval belongs to a first time unit and the symbol on the right side of the guard interval belongs to a second time unit. Specifically, the method provided by the embodiment of the application mainly relates to analysis of the sending condition of the uplink channel of the terminal side and analysis of the receiving condition of the uplink channel of the network side, and based on the transmission condition of the uplink channel, a proper guard interval is determined, so that the least influence of the selected guard interval on the transmission of at least one item of PUSCH, PUCCH, SRS is ensured, and the transmission performance of the uplink channel of the system is improved.

The technical scheme of the application is described in detail below with specific embodiments in combination with the accompanying drawings. The following embodiments may be combined with each other, and the same or similar concepts or processes will not be described in detail in some embodiments.

Fig. 4 is a flowchart of a method for determining a guard interval according to an embodiment of the present application. As shown in fig. 4, the method provided in this embodiment may be applied to any UE shown in fig. 1, and includes the following steps:

step 101, according to the uplink channel sending condition of the symbols in the first symbol set, determining N symbols in the first symbol set as the guard interval.

In the embodiment of the present application, 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, where the first time unit and the second time unit are two time units that are continuous in time domain, the first time unit is before, and the second time unit is after. The frequency domain sub-bands corresponding to the first time unit and the second time unit are different, the number of symbols in the first symbol set is larger than N, and N is a positive integer. It should be noted that, in the embodiment of the present application, the time unit may be a radio frame, a subframe, a time slot, etc., which is not limited in any way.

The symbols in the first symbol set in the embodiment of the present application may be understood as symbols at the boundary between the first time unit and the second time unit. As an example, assuming that the number of symbols N of the guard interval is 1, the ue may select one symbol from two symbols at the boundary between the first time unit and the second time unit, where the two symbols at the boundary may be the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit. As another example, assuming that the number of symbols of the guard interval is 2, the UE may select 2 consecutive symbols from four symbols at the boundary of the first time unit and the second time unit, wherein the four symbols at the boundary may 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 sending condition of the symbols in the first symbol set in the embodiment of the application comprises: at least one of PUSCH transmission, PUCCH transmission, SRS transmission, or no transmission channel. I.e. any one of the first set of symbols may be used for transmitting PUSCH, PDCCH, SRS or no channel.

The N symbols of the guard interval determined in the embodiment of the present application are consecutive symbols, and the symbols at two sides of the guard interval belong to different time units. Fig. 5 shows a schematic diagram of the positions of the guard interval and the first and second time units in the time domain, as can be seen from fig. 5, the guard interval is located at the junction of the first and second time units, 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.

And the terminal equipment determines N symbols in the first symbol set as the guard interval according to the uplink channel sending condition of the symbols in the first symbol set. The guard interval of N symbols includes the following cases: (1) 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) Consecutive N symbols are 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.

As an example, when N has a value of 1, 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. As an example, when N has a value of 2, 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 and the first symbol at the beginning of the second time unit. As an example, when N has a value of 3, the guard interval may 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 3 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 above examples show several possible cases of guard intervals corresponding to different N values, and for several possible cases of guard intervals corresponding to any one N value, comprehensive analysis needs to be performed in combination with uplink channel transmission conditions of each symbol at the boundary of time units to determine a final guard interval. In the comprehensive analysis, the type of the uplink channel (e.g., PUSCH, PUCCH, non-transmission channel) of the symbol at the boundary, the type of the information carried by the uplink channel (e.g., transmitting only user information, simultaneously transmitting user information and UCI, the type of user information, the type of UCI, etc.), the type of SRS (e.g., SRS for positioning, SRS for sounding), or the transmission scheme (periodic, aperiodic, semi-persistent) of the SRS, etc. need to be considered, so that the finally selected symbol as the guard interval has minimal influence on the transmission performance of the uplink channel of the terminal. In the NR system, since the channel resource allocation of different time units is very flexible, the uplink channel transmission condition of the symbol at the boundary of two continuous time units is more, and the factors considered in comprehensive analysis are different, and details can be found in the following embodiments.

Step 102, performing corresponding operation at the determined guard interval.

The operation performed by the UE at the determined guard interval includes at least one of:

no transmit/transmit channel; performing frequency sub-band readjustment; and performing rate matching on the symbols belonging to the guard interval in the symbols of the sent uplink channel.

The frequency sub-band retuning of the embodiment of the present application refers to the UE adjusting the receiver bandwidth from the bandwidth of the first time unit to the bandwidth of the second time unit. During the frequency sub-band readjustment, the UE may not receive and not transmit the channel, and may further continue to transmit the channel on the symbol as the guard interval according to the preset transmission condition of the symbol, which is not limited in the embodiment of the present application.

According to the rate matching in the embodiment of the application, when the uplink channel contains the symbol as the guard interval according to the determined guard interval, the UE does not map to the symbol as the guard interval when the data carried by the channel is modulated and mapped. For example, assuming that the UE plans to transmit PUSCH on the last 10 symbols at the end of the first time unit, where the last 1 symbol at the end of the first time unit is used as a guard interval, the UE may adjust the time domain resource of PUSCH, and transmit PUSCH on 9 symbols except the last 1 symbol from the last 10 symbols at the end of the first time unit, so as to ensure the reliability of uplink channel transmission.

According to the method for determining the guard interval, provided by the embodiment of the application, N symbols are determined as the guard interval by comprehensively analyzing the uplink channel transmission conditions of a plurality of symbols at the junction of two continuous time units, wherein 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. And the terminal performs frequency sub-band readjustment at the determined guard interval. The guard interval determined by the method has the smallest influence on the transmission performance of the uplink channel of the terminal, and the transmission performance of the uplink channel of the system is improved.

The above embodiment shows that the terminal performs comprehensive analysis according to the uplink channel transmission condition of a plurality of symbols at the junction of two continuous time units, and determines the guard interval. The uplink channel transmission condition of the symbol at the junction of the two continuous time units comprises at least one of transmitting PUSCH, transmitting PUCCH, transmitting SRS or not transmitting a channel. Specifically, the terminal determines the guard interval according to the uplink channel transmission condition of the symbol at the junction of two continuous time units (i.e. the symbol distribution condition of each uplink channel transmission type in the first symbol set) and the priority order of the channel transmission types, and takes the symbol with lower priority of the channel transmission type as the guard interval.

Taking 1 as an example of the number of the symbols of the guard interval, if the channel transmission types of the last symbol at the tail end of the first time unit and the first symbol at the beginning of the second time unit are the same, the terminal can select the last symbol at the tail end of the first time unit or the first symbol at the beginning of the second time unit as the guard interval. If the channel transmission types of the last symbol at the tail end of the first time unit and the first symbol at the beginning of the second time unit are different, the terminal selects one symbol with lower priority as a protection interval according to the priority order of the channel transmission types of the last symbol at the tail end of the first time unit and the first symbol at the beginning of the second time unit.

Taking 2 as an example of the number of the symbols of the guard interval, the terminal selects two continuous symbols from the last two symbols at the tail end of the first time unit and the first two symbols at the beginning of the second time unit as the guard interval. Firstly, selecting one symbol with lower priority from the last symbol at the tail end of the first time unit and the first symbol at the beginning of the second time unit as a protection interval, and then selecting the symbol with lower priority from two adjacent symbols of the selected symbol as the other symbol of the protection interval.

Note that, for the symbol for transmitting PUSCH, the symbol for transmitting PUSCH may be further subdivided into a symbol for PUSCH carrying UCI and a symbol for PUSCH not carrying UCI according to the type of PUSCH carrying information. The network side may set the priority order of symbols carrying PUSCHs of different information types. For the symbols for transmitting SRS, the symbols for transmitting SRS may be subdivided into symbols for transmitting SRS for positioning and symbols for transmitting SRS for sounding according to the type of SRS, and the symbols for transmitting SRS may be subdivided into symbols for transmitting periodic SRS, symbols for transmitting aperiodic SRS, and symbols for transmitting semi-persistent SRS according to the transmission scheme of SRS. The network side may set a priority order of symbols carrying different SRS types and/or set a priority order of symbols carrying SRS of different transmission modes.

In the embodiment of the present application, the priority order of the channel transmission types of the symbols includes the following setting manners:

(1) Transmit PUCCH > transmit PUSCH > transmit SRS > no transmit channel. The setting mode does not consider the type of the PUSCH bearing information, the type of the SRS and the sending mode, the terminal preferentially selects the symbol which does not send the channel at the junction of the two time units as the guard interval, if the symbol which does not send the channel is not arranged at the junction, the symbol which sends the SRS is preferentially selected as the guard interval, then the symbol which sends the PUSCH is selected, and finally the symbol which sends the PUCCH is selected.

(2) Transmit PUCCH > transmit SRS > transmit PUSCH > no transmit channel. The setting mode does not consider the type of the PUSCH bearing information, the type of the SRS and the sending mode, the terminal preferentially selects the symbol which does not send the channel at the junction of the two time units as the guard interval, if the symbol which does not send the channel is not arranged at the junction, the symbol which sends the PUSCH is preferentially selected as the guard interval, the symbol which sends the SRS is selected, and finally the symbol which sends the PUCCH is selected.

(3) Transmit PUCCH = transmit PUSCH carrying UCI > transmit PUSCH not carrying UCI > transmit SRS > no transmit channel. The setting mode considers the type of the PUSCH bearing information, the priority of the PUSCH bearing UCI is the same as that of the PUCCH, if no symbol which does not send a channel exists at the junction of the two time units, the symbol which sends the SRS is preferentially selected as a protection interval, the symbol which sends the PUSCH which does not bear UCI is selected as the protection interval, and finally the symbol which sends the PUCCH or the symbol which sends the PUSCH bearing UCI is selected.

(4) Transmit PUCCH > transmit sounding SRS > transmit PUSCH > transmit positioning SRS > no transmit channel. The setting mode considers the type of SRS, if the boundary of two time units does not have a symbol which does not send a channel, the terminal preferentially selects a symbol which sends the positioning SRS as a guard interval, if the boundary does not have a symbol which sends the positioning SRS, the terminal preferentially selects a symbol which sends the PUSCH as the guard interval, then selects a symbol which sends the sounding SRS, and finally sends the symbol of the PUCCH.

(5) Transmit PUCCH = transmit PUSCH carrying UCI > transmit sounding SRS > transmit PUSCH not carrying UCI > transmit positioning SRS > not transmit channel. The setting mode is to further subdivide PUSCH based on the fourth setting mode.

(6) Transmit PUCCH > transmit aperiodic SRS > transmit PUSCH > transmit period/semi-persistent SRS > no transmit channel. The setting mode considers the sending type of the SRS, if the juncture of two time units has no symbol of a non-sending channel, the terminal preferentially selects the symbol of the sending period/semi-continuous SRS as a protection interval, if the juncture has no symbol of the sending period/semi-continuous SRS, the terminal preferentially selects the symbol of the sending PUSCH as the protection interval, then selects the symbol of the sending non-period SRS, and finally sends the symbol of the PUCCH.

(7) Transmit PUCCH = PUSCH transmit UCI-bearing PUSCH > transmit aperiodic SRS > transmit PUSCH without UCI > transmit periodic/semi-persistent SRS > no transmit channel. The setting mode is to further subdivide PUSCH based on the fifth setting mode.

The above-mentioned setting of the priority order of the channel transmission type of the symbol is merely an example, and in practical application, the setting may be performed according to practical requirements, and the embodiment of the present application is not limited in any way.

In summary, the terminal may preferentially select, from the first symbol set, a symbol with a lower priority of the channel transmission type as a guard interval according to a preset uplink channel transmission condition of the symbols in the first symbol set and a priority order of the channel transmission type of the preset symbols, where the selected guard interval is N consecutive symbols, and the symbols on the left and right sides of the guard interval belong to different time units, and the consecutive N symbols may be symbols of the same channel transmission type or symbols of multiple channel transmission types. If the consecutive N symbols include symbols of a plurality of channel transmission types, the number of symbols of the channel transmission type having a low priority is greater than or equal to the number of symbols of the channel transmission type having a high priority, i.e., the terminal preferentially selects the symbols of the channel transmission type having a low priority as the guard interval.

Since there are more uplink channel transmissions of multiple symbols at the boundary between two consecutive time units, the following describes in detail the guard interval determining method for each symbol distribution at the boundary between two consecutive time units with reference to fig. 6 to 30. The symbol distribution at the time cell intersections, i.e. the symbol distribution in the first symbol set. Since each symbol in the first symbol set may be used to transmit PUSCH, PUCCH, SRS or not transmit a channel, the first symbol set may include only one type of symbol, or may include multiple types of symbols.

The following describes a case where only one type of symbol is included in the first symbol set, referring to fig. 6 to 13.

In the first case, a plurality of symbols at the boundary between the first time unit and the second time unit are all used for transmitting PUSCH, i.e. symbols in the first symbol set are all used for transmitting PUSCH. The guard interval may 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 consecutive N 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.

Fig. 6 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. In fig. 6, the number N of guard interval symbols 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. In this example, the guard interval may be the guard interval shown in fig. 6 (a), i.e., the last symbol at the end of the first time unit, or the guard interval shown in fig. 6 (b), i.e., the first symbol at the beginning of the second time unit.

Fig. 7 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The guard interval symbol number N in fig. 7 is taken to be 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. In this example, the guard interval may be the guard interval shown in fig. 7 (a), i.e., 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 shown in fig. 7 (b), i.e., the last two symbols at the end of the first time unit, or the guard interval shown in fig. 7 (c), i.e., the first two symbols at the beginning of the second time unit.

In the first case, if 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 the last N symbols at the end of the first time unit are selected as guard intervals or the first N symbols at the beginning of the second time unit are selected as guard intervals by: and determining the guard interval according to the type of the information transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit. Wherein, the type of the symbol transmission information includes transmitting only the user information or transmitting the user information and UCI simultaneously.

As an example, if the last N symbols at the end of the first time unit are all used to transmit user information only, and the first N symbols at the beginning of the second time unit are all used to transmit user information and UCI simultaneously, the last N symbols at the end of the first time unit, where only user information is transmitted, are taken as the guard interval. In this implementation manner, the terminal determines the guard interval according to the type of the PUSCH carrying information, takes the symbol of the PUSCH carrying the low priority information as the guard interval, and uses N symbols of the PUSCH carrying the user information only as the guard interval since the PUSCH carrying the user information and UCI has a higher priority than the PUSCH carrying the user information only.

Further, if 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 the same type of received information, the terminal may determine the guard interval according to the type of the user information transmitted 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, or the type of UCI.

In one possible implementation, if 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 used only for transmitting the user information, the terminal may further determine whether to select the last N symbols or the first N symbols as the guard interval according to the type 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 to transmit the user information. The type of the user information may be a type of service, for example, a type of service is service 1, service 2, service 3, and the like. The type of user information may also be information carrying Msg3 or MsgA, as well as information other than Msg3 or MsgA. The terminal may determine the guard interval according to the priority of the user information. As an example, the network side may determine priority information of the user information type through information indicated by the PDCCH, for example, through a timing parameter K0 in the PDCCH. In this implementation, 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 different in type of the transmission user information, and the last N symbols at the end of the first time unit are the same in type of the transmission user information, and the first N symbols at the beginning of the second time unit are the same in type of the transmission 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.

In another possible implementation manner, if 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 transmit the user information and UCI at the same time, the terminal may further determine whether to select the last N symbols or the first N symbols as the guard interval according to the type of UCI of PUSCH transmitted 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 the PUSCH bearer UCI includes HARQ-ACK, CSI, and other information. As an example, the PUSCH carrying the HARQ-ACK has a higher priority than the PUSCH carrying the CSI, and N symbols of the CSI of the PUSCH may be transmitted as a guard interval. Of course, the priority of the PUSCH carrying CSI may also be set higher than the PUSCH carrying HARQ-ACK, and the embodiment of the present application is not limited in any way. In this implementation, the types of UCI of the PUSCH transmitted 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 are different, and the types of UCI of the PUSCH transmitted by the last N symbols at the end of the first time unit are the same, and the types of UCI of the PUSCH transmitted by the first N symbols at the beginning of the second time unit are the same. The terminal may determine whether to select the last N symbols or the first N symbols according to a priority of a preset UCI type.

In the first case, the terminal selects N consecutive 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 the guard interval by using the type of the information of the PUSCH transmitted by the symbols in the first symbol set, and the symbols at both sides of the guard interval belong to the symbols of different time units. Wherein the symbol of which information type is selected depends on the priority of the information type of the preset PUSCH. The information type of the PUSCH includes only user information, or user information and UCI are carried at the same time, and the priority of the user information or UCI type may be further refined. The guard interval determined by the method has the smallest influence on the transmission of the PUSCH, and ensures the transmission of the PUSCH information with high priority.

In the second case, a plurality of symbols at the boundary between the first time unit and the second time unit are all used for transmitting the PUCCH, i.e. the symbols in the first symbol set are all used for transmitting the PUCCH. The guard interval may 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 consecutive N 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.

Fig. 8 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. In fig. 8, the number N of guard interval symbols 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. In this example, the guard interval may be the guard interval shown in fig. 8 (a), i.e., the last symbol at the end of the first time unit, or the guard interval shown in fig. 8 (b), i.e., the first symbol at the beginning of the second time unit.

Fig. 9 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The guard interval symbol number N in fig. 9 is taken to be 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. In this example, the guard interval may be the guard interval shown in fig. 9 (a), i.e., 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 shown in fig. 9 (b), i.e., the last two symbols at the end of the first time unit, or the guard interval shown in fig. 9 (c), i.e., the first two symbols at the beginning of the second time unit.

In the second case, if 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 the last N symbols at the end of the first time unit are selected as guard intervals or the first N symbols at the beginning of the second time unit are selected as guard intervals by:

and determining a guard interval according to the type of UCI of the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit. The type of the UCI carried by the PUCCH comprises information such as HARQ-ACK, CSI and the like. As an example, the PUCCH carrying HARQ-ACK has a higher priority than the PUCCH carrying CSI, and N symbols of CSI of the PUCCH may be transmitted as a guard interval. Of course, the priority of the PUCCH carrying CSI may also be set higher than the PUCCH carrying HARQ-ACK, which is not limited in any way. In this implementation, 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 different in UCI types of the transmission PUCCH, and the last N symbols at the end of the first time unit are the same in UCI types of the transmission PUCCH, and the first N symbols at the beginning of the second time unit are the same in UCI types of the transmission PUCCH. The terminal may determine whether to select the last N symbols or the first N symbols according to a priority of a preset UCI type.

In the second case, the terminal 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 the guard interval by the type of UCI of the PUCCH transmitted by the symbols in the first symbol set, and the symbols at both sides of the guard interval belong to the symbols of different time units. The symbol of which UCI type is selected depends on the priority of the type of the preset UCI, that is, the terminal determines a guard interval according to the priority order of the types of UCI carried by the PUCCH, and takes the symbol of the PUCCH carrying the UCI type with low priority as the guard interval. The guard interval determined by the method has the smallest influence on the transmission performance of the PUCCH, and ensures the transmission of the PUCCH information with high priority.

In a third case, none of the plurality of symbols at the boundary between the first time unit and the second time unit transmits a channel, i.e., none of the symbols in the first symbol set transmits a channel. The guard interval may 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 consecutive N 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.

Fig. 10 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. In fig. 10, the number N of guard interval symbols 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. In this example, the guard interval may be the guard interval shown in fig. 10 (a), i.e., the last symbol at the end of the first time unit, or the guard interval shown in fig. 10 (b), i.e., the first symbol at the beginning of the second time unit.

Fig. 11 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The guard interval symbol number N in fig. 11 is taken to be 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. In this example, the guard interval may be the guard interval shown in fig. 11 (a), i.e., 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 shown in fig. 11 (b), i.e., the last two symbols at the end of the first time unit, or the guard interval shown in fig. 11 (c), i.e., the first two symbols at the beginning of the second time unit.

In the third case, no channel is transmitted 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 terminal may select the last N symbols at the end of the first time unit as a guard interval, the first N symbols at the beginning of the second time unit as a guard interval, or N consecutive 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 as a guard interval, and any one of the three selection manners may be set according to a predefined rule, which is not limited in this embodiment of the present application. The guard interval determined by the method has the smallest influence on the transmission performance of the uplink channel of the terminal, and ensures the transmission performance of the communication system.

In the fourth case, the plurality of symbols at the junction of the first time unit and the second time unit are all used for transmitting SRS, that is, all the users in the first symbol set transmit SRS. The guard interval may 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 consecutive N 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.

Fig. 12 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. In fig. 12, the number N of guard interval symbols 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. In this example, the guard interval may be the guard interval shown in fig. 12 (a), i.e., the last symbol at the end of the first time unit, or the guard interval shown in fig. 12 (b), i.e., the first symbol at the beginning of the second time unit.

Fig. 13 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The guard interval symbol number N in fig. 13 is taken to be 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. In this example, the guard interval may be the guard interval shown in fig. 13 (a), i.e., 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 shown in fig. 13 (b), i.e., the last two symbols at the end of the first time unit, or the guard interval shown in fig. 13 (c), i.e., the first two symbols at the beginning of the second time unit.

In the fourth case, if 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 the last N symbols at the end of the first time unit are selected as guard intervals or the first N symbols at the beginning of the second time unit are selected as guard intervals by:

in one possible implementation, the guard interval is determined according to the type of SRS transmitted 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 types of SRS include SRS used for positioning and SRS used for detecting. The SRS for sounding can only be transmitted over the last 6 symbols of the slot and the SRS for positioning can be transmitted over any symbol within the slot. As an example, the SRS for sounding may have a higher priority than the SRS for positioning, and N symbols of the SRS for positioning may be transmitted as a guard interval. Of course, the SRS for positioning may also be set to have a higher priority than the SRS for sounding, which is not limited in any way. In this implementation manner, the types of SRS transmitted 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 are different, and the types of SRS transmitted by the last N symbols at the end of the first time unit are the same, and the types of SRS transmitted by the first N symbols at the beginning of the second time unit are the same. 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.

In one possible implementation manner, the guard interval is determined according to a transmission mode of transmitting SRS 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 them, three transmission methods of SRS are: periodic, semi-continuous, or non-periodic. As an example, aperiodic SRS has a higher priority than semi-persistent SRS, which has a higher priority than periodic SRS. If the last N symbols at the end of the first time unit are all used to transmit the aperiodic SRS, and the first N symbols of the second time unit are all used to transmit the periodic SRS, the first N symbols of the periodic SRS may be used as the guard interval. In an embodiment, the priority of periodic SRS and semi-persistent SRS may be the same. In this implementation, 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 different in SRS transmission, and the last N symbols at the end of the first time unit are identical in SRS transmission, and the first N symbols at the beginning of the second time unit are identical in SRS transmission. 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.

In one possible implementation manner, the guard interval is determined according to the type of SRS transmitted 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 and the SRS transmission mode. As an example, the network side may set the following priority order: aperiodic sounding SRS > periodic sounding SRS > aperiodic positioning SRS > periodic positioning SRS. Of course, other priority orders may be set, and no limitation is imposed on the embodiment of the present application. In this implementation manner, the types and the combinations of the transmission modes of the SRS transmitted 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 are different, and the types and the combinations of the transmission modes of the SRS transmitted by the last N symbols at the end of the first time unit are the same, and the types and the combinations of the transmission modes of the SRS transmitted by the first N symbols at the beginning of the second time unit are the same. The terminal may 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.

In the fourth case, the terminal may select 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 the guard interval, may select the first N symbols at the beginning of the second time unit as the guard interval, and may 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 as the guard interval. Specifically, the continuous N symbols may be selected according to the type and/or transmission mode of the SRS, that is, the terminal determines the guard interval 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 combined priority order of the SRS type and the transmission mode, and uses the symbol for transmitting the SRS with low priority as the guard interval. The guard interval determined by the method has the smallest influence on the SRS transmitted by the terminal, and ensures the transmission of the SRS with high priority.

The case where two types of symbols are included in the first symbol set is described below. The drawings are related to fig. 14 to 17.

In the first case, if the symbols in the first symbol set are used for transmitting PUSCH and SRS, the guard interval is a selection of 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, and the symbols at both sides of the guard interval belong to symbols of different time units. The consecutive N symbols may include only the same type of symbol or may include different types of symbols. If different types of symbols are included, the number of symbols for transmitting the PUSCH in the N continuous symbols is greater than or equal to the number of symbols for transmitting the SRS, or the number of symbols for transmitting the SRS is greater than or equal to the number of symbols for transmitting the PUSCH.

In the above case, the terminal selects, from the first symbol set, a symbol with a lower priority of the transmission type as the guard interval according to the symbol distribution of the PUSCH and SRS transmission in the first symbol set and the preset priority order of PUSCH and SRS transmission. If the priority of transmitting PUSCH is higher than that of transmitting SRS, the terminal preferentially selects the symbol of transmitting SRS as a guard interval, and if the priority of transmitting SRS is higher than that of transmitting PUSCH, the terminal preferentially selects the symbol of transmitting PUSCH as a guard interval. The network side may set a finer priority order based on at least one of the type of SRS, the transmission mode and the type of PUSCH bearer information, and the terminal selects a symbol with a lower priority as the guard interval based on the set priority order.

In some embodiments, if the last N symbols at the end of the first time unit in the first symbol set are all used to transmit PUSCH, the first N symbols at the beginning of the second time unit are all used to transmit SRS, or the last N symbols at the end of the first time unit in the first symbol set are all used to transmit SRS, and the first N symbols at the beginning of the second time unit are all used to transmit PUSCH, the guard interval may 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. Specifically, the terminal may determine the guard interval according to at least one of a type of transmitting SRS, a transmission mode of SRS, and an information type of transmitting PUSCH by using 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 the transmitted SRS includes an SRS for positioning and an SRS for sounding, the transmission mode of the transmitted SRS includes periodic, semi-persistent and aperiodic transmission, and the type of the information of the transmitted PUSCH includes only user information, and user information and UCI are simultaneously transmitted.

In one possible implementation, the terminal may determine the guard interval according to the information type of PUSCH transmitted 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 information of the first N symbols or the last N symbols for transmitting PUSCH includes UCI, the N symbols for transmitting SRS are regarded as a guard interval, and the type or transmission scheme of SRS is not considered here. In the implementation manner, the priority of sending the PUSCH including the UCI is higher than that of sending the SRS, the influence of the determined guard interval on the UCI sent by the terminal is minimum, and the UCI transmission of the PUSCH with high priority is ensured.

In one possible implementation, the terminal may determine the guard interval according to the type of SRS transmitted 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 transmitted by the first N symbols or the last N symbols is the SRS used for positioning, the N symbols transmitted by the SRS used for positioning are used as the guard interval. If the type of SRS transmission for the first N symbols or the last N symbols is SRS for sounding, the N symbols for PUSCH transmission are taken as guard intervals. In this implementation, the priority of transmitting SRS for sounding is higher than that of transmitting PUSCH, the priority of transmitting PUSCH is higher than that of SRS for positioning, the influence of the determined guard interval on the terminal transmitting sounding SRS is minimal, and the transmission of sounding SRS with high priority is ensured.

In one possible implementation, the terminal may determine the guard interval according to a transmission manner in which 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 transmit SRS. If the transmission scheme of the SRS is periodic, the N symbols of the SRS are used as guard intervals. If the transmission scheme for transmitting SRS is semi-persistent for the first N symbols or the last N symbols, the N symbols for transmitting semi-persistent SRS are used as the guard interval. If the transmission scheme for transmitting SRS in the first N symbols or the last N symbols is aperiodic, the N symbols for transmitting PUSCH are set as guard intervals. In this implementation, the transmission of the aperiodic SRS is higher in priority than the PUSCH, the PUSCH is higher in priority than the periodic/semi-persistent SRS, the determined guard interval has minimal influence on the transmission of the aperiodic SRS by the terminal, and the transmission of the aperiodic SRS with high priority is ensured.

Fig. 14 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The number N of guard interval symbols in fig. 14 is 1, and in this example, the guard interval may be the last symbol at the end of the first time unit shown in fig. 14 (a) for transmitting SRS, the first symbol at the beginning of the second time unit shown in fig. 14 (b) for transmitting positioning SRS, or the last symbol at the end of the first time unit shown in fig. 14 (c) for transmitting PUSCH without UCI. The selection principle of the guard interval number N is similar to that of the guard interval number N, and is not described here again.

In the second case, if the symbols in the first symbol set are used for transmitting PUCCH and SRS, the guard interval is a selection of 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, and the symbols at both sides of the guard interval belong to symbols of different time units. The consecutive N symbols may include only the same type of symbol or may include different types of symbols. If different types of symbols are included, the number of symbols transmitting SRS in the consecutive N symbols is greater than or equal to the number of symbols transmitting PUSCH.

In the above case, the terminal selects, as the guard interval, a symbol with a lower priority of the transmission type from the first symbol set according to the symbol distribution of the PUCCH and SRS and the preset priority order of PUCCH and SRS. The PUCCH is generally transmitted with higher priority than the SRS, and the terminal preferentially selects the symbol for transmitting the SRS as the guard interval.

In some embodiments, the terminal uses N symbols of the SRS as the guard interval if the uplink transmission conditions of 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 are different. In this implementation, the transmission PUCCH is higher in priority than the transmission SRS, and here, the determined guard interval has the smallest influence on the terminal transmission PUCCH regardless of the type of SRS or the transmission scheme, and the transmission of the PUCCH with high priority is ensured. Fig. 15 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The number of guard interval symbols N in fig. 15 is 1, and in this example, the guard interval is a symbol selected for transmitting SRS from the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit. The selection principle of the guard interval number N is similar to that of the guard interval number N, and is not described here again.

In the third case, if the first symbol set includes symbols for transmitting SRS and symbols for not transmitting channels, the guard interval is a symbol in which consecutive N symbols are 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, and the symbols at both sides of the guard interval belong to different time units. The consecutive N symbols may include only the same type of symbol or may include different types of symbols. If different types of symbols are included, the number of symbols of the continuous N symbols, in which no channel is transmitted, is greater than or equal to the number of symbols in which SRS is transmitted.

In the above case, the terminal selects, from the first symbol set, a symbol with a lower priority of the transmission type as the guard interval according to the symbol distribution of the SRS transmission and the no-transmission channels in the first symbol set and the preset priority order of the SRS transmission and the no-transmission channels. The terminal preferentially selects the symbol of the non-transmission channel as the guard interval.

In some embodiments, the uplink transmission cases of 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 are different, and the terminal takes the N symbols of the non-transmission channel as the guard interval. In this implementation, the priority of transmitting SRS is higher than that of not transmitting the channel, and the determined guard interval has minimal influence on the terminal transmitting SRS, so that the transmission of SRS with high priority is ensured.

In the fourth case, if the first symbol set includes symbols for transmitting PUSCH and symbols for not transmitting a channel, the guard interval is a symbol in which consecutive N symbols are 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, and the symbols at both sides of the guard interval belong to different time units. The consecutive N symbols may include only the same type of symbol or may include different types of symbols. If different types of symbols are included, the number of symbols of the continuous N symbols without transmitting channels is greater than or equal to the number of symbols for transmitting PUSCH.

In the above case, the terminal selects, from the first symbol set, a symbol with a lower priority of the transmission type as the guard interval according to the symbol distribution condition of the PUSCH transmission and the PUSCH non-transmission channel in the first symbol set and the preset priority order of the PUSCH transmission and the PUSCH non-transmission channel. The PUSCH is generally transmitted with a higher priority than the non-transmission channel, and the terminal preferentially selects the symbol of the non-transmission channel as the guard interval.

In some embodiments, the uplink transmission cases of 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 are different, and the terminal takes the N symbols of the non-transmission channel as the guard interval. In the implementation manner, the priority of sending the PUSCH is higher than that of not sending the channel, the influence of the determined guard interval on the PUSCH sent by the terminal is minimum, and the transmission of the PUSCH with high priority is ensured.

In a fifth case, if the first symbol set includes symbols for transmitting PUCCH and symbols for not transmitting channel, the guard interval is a symbol in which consecutive N symbols are 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, and the symbols at both sides of the guard interval belong to different time units. The consecutive N symbols may include only the same type of symbol or may include different types of symbols. If different types of symbols are included, the number of symbols of the continuous N symbols, which do not transmit channels, is greater than or equal to the number of symbols of the transmission PUCCH.

In the above case, the terminal selects, from the first symbol set, a symbol with a lower priority of the transmission type as the guard interval according to the symbol distribution condition of the transmission PUCCH and the non-transmission channel in the first symbol set and the preset priority order of the transmission PUCCH and the non-transmission channel. The terminal preferentially selects the symbol of the non-transmission channel as the guard interval.

In some embodiments, the uplink transmission cases of 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 are different, and the terminal takes the N symbols of the non-transmission channel as the guard interval. In this implementation, the priority of transmitting PUCCH is higher than that of not transmitting channel, and the determined guard interval has minimal influence on transmitting PUCCH by the terminal, ensuring transmission of PUCCH with high priority.

Fig. 16 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The number of guard interval symbols N in fig. 16 is taken to be 1, in this example, the guard interval is a symbol selected to not transmit a channel from the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit. The selection principle of the guard interval number N is similar to that of the guard interval number N, and is not described here again.

In the sixth case, if the first symbol set includes the symbol for transmitting PUSCH and the symbol for transmitting PUCCH, the guard interval is a symbol in which consecutive N symbols are 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, and the symbols at both sides of the guard interval belong to different time units. The consecutive N symbols may include only the same type of symbol or may include different types of symbols. If different types of symbols are included, the number of symbols transmitting PUSCH in the consecutive N symbols is greater than or equal to the number of symbols transmitting PUCCH.

In the above case, the terminal selects, from the first symbol set, a symbol with a lower priority of a transmission type as a guard interval according to a symbol distribution condition of the transmission PUCCH and the transmission PUSCH in the first symbol set and a preset priority order of the transmission PUCCH and the transmission PUSCH. The priority of transmitting PUCCH is generally higher than that of transmitting PUSCH, and the terminal preferentially selects the symbol of transmitting PUSCH as the guard interval.

In some embodiments, the terminal uses the N symbols of the PUSCH as the guard interval if the uplink transmission conditions of 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 are different. In this implementation, the priority of transmitting PUCCH is higher than that of transmitting PUSCH, and the determined guard interval has minimal influence on the terminal transmitting PUCCH, ensuring transmission of PUCCH with high priority.

In an embodiment, if PUSCH carries UCI, PUCCH and PUSCH may have the same priority.

Fig. 17 is a schematic diagram of symbol distribution at a time cell boundary according to an embodiment of the present application. The guard interval symbol number N in fig. 17 is taken to be 2, in this example, the guard interval is the consecutive 2 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. As in (a) of fig. 17, the last 2 symbols of the first time unit transmit PUSCH without UCI, and the first 2 symbols of the second time unit transmit PUCCH, with the guard interval being the last 2 symbols of the first time unit. As shown in fig. 17 (b), the last 2 symbols of the first time unit transmit PUSCH carrying UCI, the first 2 symbols of the second time unit transmit PUCCH, the priorities of PUSCH carrying UCI and PUCCH are the same, and the guard interval may 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. The selection principle of the number N of guard intervals is similar, and is not repeated here.

It should be noted that, in the case where the first symbol set includes two types of symbols, there are: the total principle of selecting consecutive N symbols as guard intervals is to include as many symbols as possible that do not transmit a channel in case the last N symbols of the first time unit and the first N symbols of the second time unit are irregularly distributed.

Next, with reference to fig. 18 to 22, a guard interval including a symbol for transmitting PUSCH, PUCCH, or SRS and a symbol for not transmitting a channel in the first symbol set is selected as an example. The following examples are not exhaustive of all symbol distribution scenarios, for which the terminal determines the guard interval based on the general principles described above.

In some embodiments, the number of guard interval symbols N is 2, and if there are three consecutive symbols, i.e., 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, that are symbols of the channel that the terminal does not transmit, the terminal selects two consecutive symbols from the three consecutive symbols as the guard interval, as shown in fig. 18.

In some embodiments, the number N of guard interval symbols is 2, and if there are two consecutive symbols in 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, which are symbols of the terminal that do not transmit channels, the terminal takes the two consecutive symbols of the non-transmit channels as the guard interval, as shown in fig. 19.

In some embodiments, the number of guard interval symbols N is taken to be 2, if only one symbol is a symbol of the non-transmission channel in 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 symbol of the non-transmission channel is taken 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-transmission channel. The guard interval may be a symbol to which a channel is not transmitted and one to the left of the symbol as shown in fig. 20 (a), or may be a symbol to which a channel is not transmitted and one to the right of the symbol as shown in fig. 20 (b). The types of the two adjacent symbols (e.g., PUSCH transmission information type, SRS type and/or transmission mode) of the symbols not transmitting the channel may be the same or different, and the selection principle of the same or different types of symbol transmission may be referred to the above embodiments and will not be described herein.

In some embodiments, the number N of guard interval symbols is 2, and 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 symbol for transmitting PUSCH, PUCCH or SRS, and a symbol for not transmitting a channel, and the priority of not transmitting a channel is the lowest, at least one symbol in the determined guard interval is a symbol for not transmitting a channel. As shown in fig. 21 (a), consecutive symbols of two non-transmission channels are used as guard intervals. As shown in fig. 21 (b), the symbols of the two non-transmission channels are discontinuous, 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. Specifically, the terminal may determine the guard interval according to the type of the transmission information (e.g., the type of PUSCH transmission information, the type of SRS, and/or the transmission mode) of the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit.

In some embodiments, the number N of guard interval symbols is 3, and 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 symbol for transmitting PUSCH, PUCCH, or SRS, and a symbol for not transmitting a channel, and the priority of not transmitting a channel is the lowest, at least one symbol in the determined guard interval is a symbol for not transmitting a channel. As shown in fig. 22 (a), two consecutive symbols of the non-transmission channel are used as 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. As shown in fig. 22 (b), if the symbols of the non-transmission channel are discontinuous (e.g., occur at intervals), three consecutive symbols are selected 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, and two symbols of the non-transmission channel occur at intervals among the three consecutive symbols, e.g., the last three symbols at the end of the first time unit in fig. 22 (b), or the last symbol at the end of the first time unit and the first two symbols at the beginning of the second time unit. Specifically, the terminal may determine the guard interval according to the type of the transmission information (e.g., the type of PUSCH transmission information, the type of SRS, and/or the transmission mode) of the last second symbol at the end of the first time unit and the first symbol at the beginning of the second time unit.

The above embodiments illustrate that the first symbol set includes symbols that do not transmit channels, and the following is a selection example of the guard interval of any two symbols in the first symbol set including the transmission PUSCH, PUCCH, SRS with reference to fig. 23 to 25.

In some embodiments, the number N of guard interval symbols is taken to be 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 a symbol for transmitting PUSCH and a symbol for transmitting PUCCH, the priority of the preset PUCCH is higher than that of PUSCH, as shown in fig. 23 (a), the symbol for transmitting PUSCH is taken as one symbol of the guard interval, and the other symbol of the guard interval may be a right symbol or a left symbol adjacent to the symbol for transmitting PUSCH.

In some embodiments, the guard interval symbol number N is taken to be 3, and if there are three consecutive PUSCH-transmitting symbols in 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 takes the three consecutive PUSCH-transmitting symbols as the guard interval, as shown in (b) of fig. 23.

In some embodiments, the number N of guard interval symbols is taken to be 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 a symbol for transmitting PUSCH carrying UCI and a symbol for transmitting SRS, the priority of PUSCH carrying UCI is preset to be higher than that of SRS, as shown in fig. 24 (a), the first 2 symbols at the beginning of the second time unit are all used for transmitting SRS, and the terminal uses these 2 symbols as guard intervals.

In some embodiments, the number N of guard interval symbols 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, symbols for transmitting sounding SRS and symbols for transmitting positioning SRS, the priority of the preset sounding SRS is higher than that of PUSCH without UCI, the priority of PUSCH without UCI is higher than that of positioning SRS, as shown in (b) of fig. 24, the last 2 symbols at the end of the first time unit are respectively used for transmitting PUSCH without UCI and positioning SRS, and the terminal takes these 2 symbols as guard intervals.

In some embodiments, the number N of guard interval symbols 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, symbols for transmitting periodic SRS and symbols for transmitting aperiodic SRS, the priority of the preset aperiodic SRS is higher than the PUSCH without UCI, the priority of the PUSCH without UCI is higher than the periodic SRS, as shown in (c) of fig. 24, the first 2 symbols at the beginning of the second time unit are all used for transmitting periodic SRS, and the terminal uses these 2 symbols as the guard interval.

In some embodiments, the number N of guard interval symbols is taken to be 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 transmitting PUCCH and the symbol for transmitting SRS, the priority of the preset PUCCH is higher than that of SRS, as shown in fig. 25 (a), the first 2 symbols at the beginning of the second time unit are all used for transmitting SRS, and the terminal uses these 2 symbols as guard intervals. As shown in fig. 25 (b), 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 transmit PUCCH and SRS, and the terminal may use the last 2 symbols at the end of the first time unit as a guard interval, or the last 1 symbols at the end of the first time unit and the 1 st symbols at the beginning of the second time unit as a guard interval, or the first 2 symbols at the beginning of the second time unit as a guard interval.

The case where three types of symbols are included in the first symbol set is described below. The drawings are related to fig. 26 to 29.

In the first case, if the first symbol set includes symbols for transmitting SRS, symbols for transmitting PUCCH, and symbols for not transmitting channel, the guard interval is a number of symbols for transmitting SRS that is greater than or equal to the number of symbols for transmitting PUCCH, and the number of symbols for transmitting SRS is greater than or equal to the number of symbols for transmitting PUCCH, where consecutive N symbols are 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.

In the above case, the terminal selects, as the guard interval, a symbol with a lower priority of the transmission type from the first symbol set according to the symbol distribution of the transmission PUCCH, SRS, and non-transmission channel in the first symbol set and the preset priority order of the transmission PUCCH, SRS, and non-transmission channel. The priority of sending SRS is higher than that of sending PUCCH, the priority of sending PUCCH is higher than that of not sending channel, the terminal preferentially selects the symbol of not sending channel as the guard interval, then selects the symbol of sending PUCCH, and finally sends the symbol of SRS.

In some embodiments, 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 that transmit SRS, PUCCH, and no channel, the priority of the preset PUCCH is higher than SRS, and the priority of SRS is higher than no channel. As shown in fig. 26 (a), the guard interval symbol number N is 2, and since the last 2 symbols at the end of the first time unit are used for transmitting SRS and not transmitting channels, respectively, the terminal uses the last 2 symbols as the guard interval.

In some embodiments, 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 symbols for transmitting SRS, PUCCH and non-transmitting channel, as shown in fig. 26 (b), the guard interval symbol number N is taken to be 3, the terminal takes the last 2 symbols of the non-transmitting channel at the end of the first time unit as the guard interval, and the terminal takes the last 3 symbols at the end of the first time unit as another symbol of the guard interval because the PUCCH has a higher priority than SRS.

In the second case, if the first symbol set includes a symbol for transmitting SRS, a symbol for transmitting PUSCH, and a symbol for not transmitting a channel, the guard interval is a symbol 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, and consecutive N symbols are selected from the consecutive N symbols: the number of symbols of the non-transmission channel is larger than or equal to the number of symbols of the transmission SRS, and the number of symbols of the transmission SRS is larger than or equal to the number of symbols of the transmission PUSCH; alternatively, the number of symbols of the non-transmission channel is greater than or equal to the number of symbols of the transmission PUSCH, which is greater than or equal to the number of symbols of the transmission SRS.

In the above case, the terminal selects, as the guard interval, a symbol with a lower priority of the transmission type from the first symbol set according to the symbol distribution of the PUSCH, SRS and non-transmission channel in the first symbol set and the preset priority order of the PUSCH, SRS and non-transmission channel. The priority of the non-transmission channel is usually lowest, the terminal preferentially selects the symbol of the non-transmission channel as a guard interval, and then the terminal can further send the symbol with lower priority of the type according to the preset priority order of sending the PUSCH and sending the SRS as the guard interval. The network side may set a finer priority order based on at least one of the type of SRS, the transmission mode and the type of PUSCH bearer information, and the terminal selects a symbol with a lower priority as the guard interval based on the set priority order.

In some embodiments, 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 that transmit SRS, PUSCH that carries UCI, and a channel that is not transmitted, the priority of PUSCH that carries UCI is preset to be higher than SRS, and the priority of SRS is higher than the channel that is not transmitted. As shown in fig. 26 (a), the guard interval symbol number N is 2, and since the last 2 symbols at the end of the first time unit are used for transmitting SRS and not transmitting channels, respectively, the terminal uses the last 2 symbols as the guard interval.

In some embodiments, 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 the symbol that transmits SRS, PUSCH that carries UCI, and a symbol that does not transmit a channel, as shown in (b) of fig. 26, the number N of guard interval symbols is taken as 3, the terminal takes the last 2 symbols that do not transmit channels at the end of the first time unit as a guard interval, and since the PUSCH that carries UCI has a higher priority than SRS, the terminal takes the last 3 symbols at the end of the first time unit as another symbol of the guard interval.

In some embodiments, 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 that transmit sounding SRS (or aperiodic SRS), PUSCH that do not carry UCI, and a non-transmission channel, the preset sounding SRS (or aperiodic SRS) has a higher priority than the PUSCH that does not carry UCI, and the PUSCH that does not carry UCI has a higher priority than the non-transmission channel, as shown in fig. 27 (a), the number N of guard interval symbols is 2, and since the last 1 symbol at the end of the first time unit does not transmit a channel, the 1 st symbol at the beginning of the second time unit is used to transmit the PUSCH that does not carry UCI, and the terminal takes the 2 symbols as a guard interval.

In some embodiments, 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 the symbol that transmits the sounding SRS (or the aperiodic SRS), the PUSCH that does not carry UCI, and the symbol that does not transmit a channel, as shown in fig. 27 (b), the guard interval symbol number N is taken to be 3, the terminal takes the symbol of the last 2 non-transmitted channels at the end of the first time unit as a guard interval, and since the sounding SRS (or the aperiodic SRS) has a higher priority than the PUSCH that does not carry UCI, the terminal takes the 1 st symbol at the beginning of the second time unit as another symbol of the guard interval.

In the third case, if the first symbol set includes a symbol for transmitting SRS, a symbol for transmitting PUSCH, and a symbol for transmitting PUCCH; the guard interval is a selection of 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 transmitting SRS is larger than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is larger than or equal to the number of symbols for transmitting PUCCH; alternatively, the number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS, which is greater than or equal to the number of symbols for transmitting PUCCH.

In the above case, the terminal selects, from the first symbol set, the symbol with the lower priority of the transmission type as the guard interval according to the symbol distribution of the transmissions SRS, PUSCH, PUCCH in the first symbol set and the preset priority order of the transmissions SRS, PUSCH, PUCCH. The priority of transmitting PUCCH is generally highest, and the terminal may preferentially select, as the guard interval, a symbol with a lower priority of the transmission type according to a preset priority order of transmitting SRS and PUSCH. If the priority of transmitting PUSCH is higher than that of transmitting SRS, the terminal preferentially selects the symbol of transmitting PUSCH as a guard interval, and if the priority of transmitting SRS is higher than that of transmitting PUSCH, the terminal preferentially selects the symbol of transmitting SRS as a guard interval. The network side may set a finer priority order based on at least one of the type of SRS, the transmission mode and the type of PUSCH bearer information, and the terminal selects a symbol with a lower priority as the guard interval based on the set priority order.

In some embodiments, 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 SRS, PUSCH without UCI, and PUCCH, the priority of the preset PUCCH is higher than that of PUSCH without UCI, the priority of PUCCH is higher than that of SRS, as shown in fig. 28 (a), the number N of guard interval symbols is 2, the terminal first selects, from the last 1 symbols at the end of the first time unit and the 1 st symbol at the beginning of the second time unit, the symbol with low priority for transmitting PUSCH without UCI, that is, the last 1 symbol at the end of the first time unit, and then selects, according to the priority order of the two symbols adjacent to the symbol, the symbol with the left side for transmitting SRS as another symbol of the guard interval.

In some embodiments, 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 (b) of fig. 28, the guard interval symbol number N is taken as 3, the terminal takes the last 2 symbols at the end of the first time unit, which transmit PUSCH without UCI, as a guard interval, and the terminal takes the last 3 symbols at the end of the first time unit as another symbol of the guard interval because the PUCCH has a higher priority than SRS.

In the fourth case, if the first symbol set includes symbols for transmitting PUSCH, symbols for transmitting PUCCH, and symbols for not transmitting a channel, the guard interval is a selection of 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 number of symbols for not transmitting a channel in the consecutive N symbols 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.

In the above case, the terminal selects, from the first symbol set, a symbol with a lower priority of a transmission type as a guard interval according to the symbol distribution condition of the PUSCH, the PUCCH, and the non-transmission channel in the first symbol set and a preset priority order of the PUSCH, the PUCCH, and the non-transmission channel. The priority of sending the PUCCH is higher than that of sending the PUSCH, the priority of sending the PUSCH is higher than that of not sending the channel, the terminal preferentially selects the symbol of not sending the channel as a guard interval, then selects the symbol of sending the PUSCH, and finally sends the symbol of the PUCCH. The terminal may also set a finer priority order (for example, the PUSCH carrying UCI has the same priority as the PUCCH, and the PUCCH has a higher priority than the PUSCH not carrying UCI) based on the type of PUSCH carrying information, and select a symbol with a lower priority as the guard interval based on the set priority order.

In some embodiments, 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 transmitting PUSCH and PUCCH and the symbol for not transmitting channel, the priority of the preset PUCCH is higher than that of PUSCH and the priority of PUSCH is higher than that of not transmitting channel, as shown in fig. 29 (a), the number N of guard interval symbols is 2, the terminal first selects the symbol for not transmitting channel with low priority from the last 1 symbol at the end of the first time unit and the 1 st symbol at the beginning of the second time unit, that is, the last 1 symbol at the end of the first time unit, and then selects the symbol for transmitting PUSCH at the left side of the symbol as another symbol of the guard interval according to the priority sequence of the two symbols adjacent to the symbol.

In some embodiments, 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 the symbol for transmitting PUSCH, PUCCH, and the symbol for not transmitting channel, as shown in (b) of fig. 29, the guard interval symbol number N is taken as 3, the terminal takes the last 2 symbols of the not-transmitting channel at the end of the first time unit as the guard interval, and the terminal takes the last 3 symbols at the end of the first time unit as the other symbol of the guard interval because the PUCCH has a higher priority than PUSCH.

Finally, a case is introduced in which four types of symbols are included in the first symbol set, that is, the first symbol set includes a symbol for transmitting SRS, a symbol for transmitting PUSCH, a symbol for transmitting PUCCH, and a symbol for not transmitting a channel. The guard interval is a selection of consecutive N symbols from a last N symbols at the end of the first time unit and a first N symbols at the beginning of the second time unit, wherein among the consecutive N symbols:

the number of symbols of the non-transmission channel is larger than or equal to the number of symbols of the transmission PUSCH, the number of symbols of the transmission PUSCH is larger than or equal to the number of symbols of the transmission SRS, and the number of symbols of the transmission SRS is larger than or equal to the number of symbols of the transmission PUCCH; or alternatively

The number of symbols of the non-transmission channel is greater than or equal to the number of symbols of the transmission SRS, which is greater than or equal to the number of symbols of the transmission PUSCH, which is greater than or equal to the number of symbols of the transmission PUCCH.

In the above case, the terminal selects, as the guard interval, the symbol with lower priority of the transmission type from the first symbol set according to the symbol distribution condition of the transmission SRS, PUSCH, PUCCH and non-transmission channels in the first symbol set and the preset priority order of the transmission SRS, PUSCH, PUCCH and non-transmission channels. The priority of the non-transmission channel is usually lowest, the priority of the transmission PUCCH is highest, the terminal preferentially selects the symbol of the non-transmission channel as a guard interval, the terminal can select the symbol with lower priority of the transmission type as the guard interval according to the preset priority sequence of the transmission SRS and the PUSCH, and finally the symbol of the transmission PUCCH is selected. The network side may set a finer priority order based on at least one of the type of SRS, the transmission mode and the type of PUSCH bearer information, and the terminal selects a symbol with a lower priority as the guard interval based on the set priority order.

The above number of symbols for transmitting PUSCH being greater than or equal to the number of symbols for transmitting SRS means that: the number of symbols to transmit PUSCH is greater than or equal to the number of symbols to transmit positioning SRS (or periodic/semi-persistent SRS), or the number of symbols to transmit PUSCH carrying UCI is greater than or equal to the number of symbols to transmit sounding SRS (or aperiodic SRS). The number of symbols for transmitting SRS being greater than or equal to the number of symbols for transmitting PUSCH means that: the number of symbols to transmit the sounding SRS (or the aperiodic SRS) is greater than or equal to the number of symbols to transmit the PUSCH that does not carry UCI.

In some embodiments, if the first symbol set includes 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 SRS, PUSCH, PUCCH and non-transmission channels are respectively transmitted, as shown in (a) of fig. 30, the number of guard interval symbols is 2, the terminal first selects the symbol of the non-transmission channel with low priority from the last 1 symbols at the end of the first time unit and the 1 st symbol at the beginning of the second time unit, that is, the 1 st symbol at the beginning of the second time unit, and then selects the symbol of the PUSCH transmitted on the right side of the symbol as another symbol of the guard interval according to the priority sequence of the two symbols adjacent to the symbol.

In some embodiments, if 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, where the set includes symbols for transmitting SRS, PUSCH, PUCCH and not transmitting channels, the number of guard interval symbols is 3 as shown in (b) of fig. 30, since two symbols not transmitting channels include 2 symbols for transmitting PUSCH, the terminal needs to combine channel transmission cases of adjacent symbols of the two symbols not transmitting channels to select a guard interval, adjacent symbols of symbols not transmitting channels on the left side in (b) of fig. 30 are respectively used for transmitting SRS and PUSCH, and adjacent symbols of symbols not transmitting channels on the right side are respectively used for transmitting PUCCH and PUSCH, where PUCCH has a higher priority than SRS, so the terminal takes the last 3 symbols at the end of the first time unit as a guard interval.

It should be noted that, besides the priority of the preset PUCCH being greater than the PUSCH, the priority of the PUSCH may be preset to be greater than the PUCCH, and the priority of the PUSCH carrying UCI may be preset to be the same as the priority of the PUCCH, which is not limited in any way.

In general, in the above embodiments, based on the uplink channel transmission situation of the symbol at the boundary of two time units, the symbol that does not transmit the channel is preferentially selected as the guard interval, if the symbol that does not transmit the channel is not located at the boundary, the symbol that transmits the SRS or the PUSCH may be preferentially selected as the guard interval (the priority order of the SRS and the PUSCH includes multiple cases, see above), and finally the symbol of the PUCCH is selected, so as to ensure that the transmission influence of the selected guard interval on at least one of PUSCH, PUCCH, SRS is minimal, and improve the transmission capability of the uplink channel of the system.

Fig. 31 is a flowchart of a method for determining a guard interval according to an embodiment of the present application. As shown in fig. 31, the method provided in this embodiment may be applied to the base station shown in fig. 1, and includes the following steps:

step 201, determining N symbols in the first symbol set as a guard interval according to the uplink channel receiving condition of the symbols in the first symbol set.

In the embodiment of the present application, 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, where the first time unit and the second time unit are two time units that are continuous in time domain, the first time unit is before, and the second time unit is after. The frequency domain sub-bands corresponding to the first time unit and the second time unit are different, the number of symbols in the first symbol set is larger than N, and N is a positive integer.

The symbols in the first symbol set in the embodiment of the present application may be understood as symbols at the boundary between the first time unit and the second time unit. As an example, assuming that the number of symbols N of the guard interval is 1, the ue may select one symbol from two symbols at the boundary between the first time unit and the second time unit, where the two symbols at the boundary may be the last symbol at the end of the first time unit and the first symbol at the beginning of the second time unit. As another example, assuming that the number of symbols of the guard interval is 2, the UE may be from four symbols at the boundary of the first time unit and the second time unit, wherein the four symbols at the boundary may 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 receiving condition of the symbols in the first symbol set in the embodiment of the application comprises: at least one of receiving PUSCH, receiving PUCCH, receiving SRS, or not receiving a channel. I.e. any one of the first set of symbols may be used for receiving PUSCH, PUCCH, SRS or no channel.

The N symbols of the guard interval determined in the embodiment of the present application are consecutive symbols, and the symbols at two sides of the guard interval belong to different time units. As can be seen from fig. 3, 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.

And the network equipment determines N symbols in the first symbol set as the guard interval according to the uplink channel receiving condition of the symbols in the first symbol set. The guard interval of N symbols includes the following cases: (1) 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) Consecutive N symbols are 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.

As an example, when N has a value of 1, 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.

As an example, when N has a value of 2, 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 and the first symbol at the beginning of the second time unit.

As an example, when N has a value of 3, the guard interval may 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 3 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 above examples show several possible cases of guard intervals corresponding to different N values, and for any one of the possible cases of guard intervals corresponding to N values, comprehensive analysis needs to be performed in combination with uplink channel receiving conditions of each symbol at the boundary of time units to determine a final guard interval. In the comprehensive analysis, the type of the uplink channel of the symbol at the junction, the type of the information carried by the uplink channel, the type of the SRS, the sending mode of the SRS, and the like can be considered, so that the influence of the finally selected symbol serving as the guard interval on the uplink channel receiving performance of the network equipment is minimized. In the NR system, since the channel resource allocation of different time units is very flexible, the uplink channel of the symbol at the boundary between two consecutive time units has more reception conditions, and the factors considered in comprehensive analysis are different, and details can be found in the following embodiments.

Step 202, frequency sub-band readjustment is performed in the determined guard interval.

The frequency sub-band readjustment of 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 sub-band re-modulation, the base station may not receive and not transmit channels.

According to the method for determining the guard interval, provided by the embodiment of the application, N symbols are determined as the guard interval by comprehensively analyzing the uplink channel receiving conditions of a plurality of symbols at the junction of two continuous time units, wherein 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 in the determined guard interval, or may perform frequency subband retuning, or may perform rate matching on symbols belonging to the guard interval among symbols of the received channel. The guard interval determined by the method has the smallest influence on the uplink channel receiving performance of the base station, and improves the transmission performance of the uplink channel of the system.

The above embodiment shows that the network device needs to perform comprehensive analysis according to the uplink channel receiving conditions of a plurality of symbols at the junction of two continuous time units, and determine the guard interval. The uplink channel receiving condition of the symbol at the junction of the two continuous time units comprises at least one of receiving PUSCH, receiving PUCCH, receiving SRS or not receiving a channel. Specifically, the network device may ensure the guard interval according to the uplink channel receiving condition of the symbol at the juncture of two continuous time units (i.e. the symbol distribution condition of each uplink channel receiving type in the first symbol set) and the priority order of the channel receiving types, and take the symbol with the lower priority of the channel receiving type as the guard interval.

Taking 1 as an example of the number of symbols of the guard interval, if the channel receiving 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 the same, the network device may select the last symbol at the end of the first time unit or the first symbol at the beginning of the second time unit as the guard interval. If the channel receiving types of the last symbol at the tail end of the first time unit and the first symbol at the beginning of the second time unit are different, the network equipment selects one symbol with lower priority as a protection interval according to the priority order of the channel receiving types of the last symbol at the tail end of the first time unit and the first symbol at the beginning of the second time unit.

Taking 2 as an example of the number of the symbols of the guard interval, the network device selects two continuous symbols from the last two symbols at the tail end of the first time unit and the first two symbols at the beginning of the second time unit as the guard interval. Firstly, selecting one symbol with lower priority from the last symbol at the tail end of the first time unit and the first symbol at the beginning of the second time unit as a protection interval, and then selecting the symbol with lower priority from two adjacent symbols of the selected symbol as the other symbol of the protection interval.

Note that, for the symbol for receiving PUSCH, the symbol for receiving PUSCH may be further subdivided into a symbol for PUSCH carrying UCI and a symbol for PUSCH not carrying UCI according to the type of PUSCH carrying information. The network side may set the priority order of symbols carrying PUSCHs of different information types. For the symbols for receiving SRS, the symbols for receiving SRS may be subdivided into the symbols for receiving SRS for positioning and the symbols for receiving SRS for sounding according to the type of SRS, and the symbols for receiving SRS may be subdivided into the symbols for receiving periodic SRS, the symbols for receiving aperiodic SRS and the symbols for receiving semi-persistent SRS according to the manner of SRS reception. The network side may set a priority order of symbols carrying different SRS types and/or set a priority order of symbols carrying SRS of different transmission modes.

In the embodiment of the present application, the priority order of the channel receiving types of the symbols includes the following setting manners:

(1) Receive PUCCH > receive PUSCH > receive SRS > no receive channel. The setting mode does not consider the type of the PUSCH bearing information, the type of the SRS and the receiving mode, the network equipment preferentially selects the symbol which does not receive the channel at the junction of the two time units as the guard interval, if the symbol which does not receive the channel at the junction does not exist, the symbol which receives the SRS is preferentially selected as the guard interval, then the symbol which receives the PUSCH is selected, and finally the symbol which receives the PUCCH is selected.

(2) Receive PUCCH > receive SRS > receive PUSCH > not receive channel. The setting mode does not consider the type of the PUSCH bearing information, the type of the SRS and the receiving mode, the network equipment preferentially selects the symbol which does not receive the channel at the junction of the two time units as the guard interval, if the symbol which does not receive the channel at the junction is not available, the symbol which receives the PUSCH is preferentially selected as the guard interval, the symbol which receives the SRS is selected, and finally the symbol which receives the PUCCH is selected.

(3) Receive PUCCH = receive PUSCH carrying UCI > receive PUSCH not carrying UCI > receive SRS > not receive channel. The setting mode considers the type of the PUSCH bearing information, the priority of the PUSCH bearing UCI is the same as that of the PUCCH, if no symbol which does not receive a channel exists at the junction of the two time units, the symbol which receives the SRS is preferentially selected as a protection interval, the symbol which receives the PUSCH which does not bear UCI is selected as the protection interval, and finally the symbol which receives the PUCCH or the symbol which receives the PUSCH bearing UCI is selected.

(4) Receive PUCCH > receive sounding SRS > receive PUSCH > receive positioning SRS > not receive channel. The setting mode considers the type of SRS, if the juncture of two time units does not have a symbol which does not receive a channel, the network equipment preferentially selects the symbol which receives the positioning SRS as a protection interval, if the juncture does not receive the symbol which receives the positioning SRS, the network equipment preferentially selects the symbol which receives the PUSCH as the protection interval, then selects the symbol which receives the sounding SRS, and finally receives the symbol of the PUCCH.

(5) Receive PUCCH = receive PUSCH with UCI > receive sounding SRS > receive PUSCH without UCI > receive positioning SRS > no receive channel. The setting mode is to further subdivide PUSCH based on the fourth setting mode.

(6) Receive PUCCH > receive aperiodic SRS > receive PUSCH > receive period/semi-persistent SRS > no receive channel. The setting mode considers the receiving type of the SRS, if the juncture of two time units does not have a symbol of a non-receiving channel, the network equipment preferentially selects the symbol of the receiving period/semi-continuous SRS as a protection interval, if the juncture does not have the symbol of the receiving period/semi-continuous SRS, the network equipment preferentially selects the symbol of the receiving PUSCH as the protection interval, then selects the symbol of the receiving non-period SRS, and finally receives the symbol of the PUCCH.

(7) Receive PUCCH = receive PUSCH carrying UCI > receive aperiodic SRS > receive PUSCH not carrying UCI > receive period/semi-persistent SRS > not receive channel. The setting mode is to further subdivide PUSCH based on the fifth setting mode.

The above-mentioned setting of the priority order of the channel reception type of the symbol is merely an example, and in practical application, the setting may be performed according to practical requirements, and the embodiment of the present application is not limited in any way.

In summary, the network device preferentially selects, as the guard interval, a symbol with a lower priority of the channel reception type from the first symbol set according to the uplink channel reception condition of the symbols in the first symbol set and the priority order of the channel reception type of the preset symbols. The selected guard interval is N consecutive symbols, and the symbols on the left and right sides of the guard interval belong to different time units, where the N consecutive 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 a plurality of channel reception types, the number of symbols of a channel reception type having a low priority is greater than or equal to the number of symbols of a channel reception type having a high priority, i.e., the network device preferentially selects symbols of a channel reception type having a low priority as a guard interval.

In some embodiments, if the symbols in the first symbol set are all used for receiving PUSCH, 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 uplink channel receiving condition of the symbols in the first symbol set, determining the N symbols in the first symbol set as the guard interval comprises the following steps: and determining a guard interval according to the types of the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit, wherein the types of the received information comprise only the received user information or the received user information and the uplink control information UCI.

In some embodiments, determining the guard interval based on 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 includes: only N symbols receiving user information are taken as guard intervals.

In some embodiments, if 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 each only used for receiving user information, determining the guard interval 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 includes: the guard interval is determined based on the type of user 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.

In some embodiments, if 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 for receiving the user information and UCI at the same time, determining 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 includes: and determining the guard interval according to the type of UCI of the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

In some embodiments, if the symbols in the first symbol set are all used to receive PUCCH, 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 uplink channel receiving condition of the symbols in the first symbol set, determining the N symbols in the first symbol set as the guard interval comprises the following steps: the guard interval is determined according to the last N symbols at the end of the first time unit and the type of UCI of the first N symbols received PUCCH at the beginning of the second time unit.

In some embodiments, the guard interval is a selection of consecutive N symbols from a last N symbols at the end of the first time unit and a first N symbols at the beginning of the second time unit if none of the symbols in the first set of symbols receives a channel.

In some embodiments, if the symbols in the first symbol set are all used for receiving SRS, 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 uplink channel receiving condition of the symbols in the first symbol set, determining the N symbols in the first symbol set as the guard interval comprises the following steps: and determining a guard interval according to at least one of the type and the receiving mode of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit.

The above embodiments show the case that only one type of symbol is included in the first symbol set, and the implementation principle and technical effects are the same as those of the embodiments of fig. 6 to 13 on the terminal side, and specific reference may be made to the above embodiments, which are not repeated herein.

In some embodiments, if the symbols in the first symbol set are used for receiving PUSCH and SRS; 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 uplink channel receiving condition of the symbols in the first symbol set, determining the N symbols in the first symbol set as the guard interval comprises the following steps: and determining the guard interval according to at least one of the type of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, the receiving mode of the SRS and the information type of the received PUSCH.

In some embodiments, determining the guard interval based on 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 includes: if the information of the received PUSCH includes UCI, N symbols of the received SRS are used as a guard interval.

In some embodiments, the types of SRS include SRS for positioning and SRS for sounding, determining a guard interval according to the type of SRS 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 includes: taking N symbols of SRS received for positioning as a guard interval; or, N symbols of the received PUSCH are taken as the guard interval.

In some embodiments, the SRS reception method includes periodic, semi-persistent, and aperiodic reception, and determining the guard interval according to the reception method of the SRS reception method 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 includes: taking N symbols of a receiving period or a semi-continuous SRS as a guard interval; or, N symbols of the received PUSCH are taken as the guard interval.

In some embodiments, if a symbol in the first symbol set is used to receive PUCCH and SRS; 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 uplink channel receiving condition of the symbols in the first symbol set, determining the N symbols in the first symbol set as the guard interval comprises the following steps: the N symbols of the received SRS are taken as a guard interval.

In some embodiments, if the first symbol set includes symbols for receiving SRS and symbols for not receiving 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; according to the uplink channel receiving condition of the symbols in the first symbol set, determining the N symbols in the first symbol set as the guard interval comprises the following steps: the N symbols of the non-received channel are taken as guard intervals.

In some embodiments, if the first symbol set includes a symbol for receiving PUSCH and a symbol for receiving 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, 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.

In some embodiments, if the first symbol set includes a symbol for receiving PUSCH and a symbol for not receiving a channel; 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, where the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols that receive PUSCH.

In some embodiments, if the first symbol set includes symbols for receiving PUCCH and symbols for not receiving channel; 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, and the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols of the received PUCCH.

The above embodiments illustrate the case where the first symbol set includes two types of symbols, and the implementation principle and technical effects are the same as those of the embodiments of fig. 14 to 25 on the terminal side, and specific reference may be made to the above embodiments, which are not repeated herein.

In some embodiments, if the first symbol set includes a symbol for receiving PUSCH, a symbol for receiving PUCCH, and a symbol for not receiving a channel; 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, where the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols that receive PUSCH, and the number of symbols that receive PUSCH is greater than or equal to the number of symbols that receive PUCCH.

In some embodiments, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUCCH, and a symbol for not receiving channel; 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, where the number of symbols of the consecutive N symbols that do not receive channels is greater than or equal to the number of symbols that receive SRS, and the number of symbols that receive SRS is greater than or equal to the number of symbols that receive PUCCH.

In some embodiments, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUSCH, and a symbol for not receiving a channel; the guard interval is a selection of 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 of the non-received channel is larger than or equal to the number of symbols of the received SRS, and the number of symbols of the received SRS is larger than or equal to the number of symbols of the received PUSCH; or (b)

The number of symbols of the non-received channel is greater than or equal to the number of symbols of the received PUSCH, which is greater than or equal to the number of symbols of the received SRS.

In some embodiments, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUSCH, and a symbol for receiving PUCCH; the guard interval is a selection of 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 of the received SRS is larger than or equal to the number of symbols of the received PUSCH, and the number of symbols of the received PUSCH is larger than or equal to the number of symbols of the received PUCCH; or (b)

The number of symbols of the received PUSCH is greater than or equal to the number of symbols of the received SRS, which is greater than or equal to the number of symbols of the received PUCCH.

The above embodiments illustrate the case where three types of symbols are included in the first symbol set, and the implementation principle and technical effects are the same as those of the embodiments of fig. 26 to 29 on the terminal side, and specific reference may be made to the above embodiments, which are not repeated herein.

In some embodiments, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUSCH, a symbol for receiving PUCCH, and a symbol for not receiving a channel; the guard interval is a selection of 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 of the non-received channel is larger than or equal to the number of symbols of the received PUSCH, the number of symbols of the received PUSCH is larger than or equal to the number of symbols of the received SRS, and the number of symbols of the received SRS is larger than or equal to the number of symbols of the received PUCCH; or (b)

The number of symbols of the non-received channel is greater than or equal to the number of symbols of the received SRS, which is greater than or equal to the number of symbols of the received PUSCH, which is greater than or equal to the number of symbols of the received PUCCH.

The above embodiments show the case that the first symbol set includes four types of symbols, and the implementation principle and technical effects are the same as those of the embodiment of fig. 30 on the terminal side, and specific reference may be made to the above embodiments, which are not repeated herein.

The method for determining the guard interval provided by the embodiment of the present application is described in detail above, and the terminal device and the network device provided by the embodiment of the present application will be described below.

Fig. 32 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 32, a terminal device 300 provided in an embodiment of the present application includes:

a processing module 301, configured to determine, according to an uplink channel transmission condition of symbols in the first symbol set, N symbols in the first symbol set as a guard interval;

the symbols in the first symbol set belong to symbols at the tail end of a first time unit and the beginning end of a second time unit, the first time unit and the second time unit are two time units which are continuous in time domain, frequency domain sub-bands corresponding to the first time unit and the second time unit are different, and the number of the symbols in the first symbol set is larger than N, wherein N is a positive integer.

In one embodiment, the N symbols that are guard intervals are consecutive symbols, and the symbols on both sides of the guard interval belong to different time units.

In one embodiment, the guard interval is the last N symbols at the end of the first time unit; or (b)

The guard interval is the first N symbols at the beginning of the second time unit; or (b)

The guard interval is a succession of N 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.

In an embodiment, the uplink channel transmission condition of the symbols in the first symbol set includes at least one of transmitting a physical uplink shared channel PUSCH, transmitting a physical uplink control channel PUCCH, transmitting a sounding reference signal SRS, or not transmitting a channel.

In one possible implementation, if the symbols in the first symbol set are all used for transmitting PUSCH, 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 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, where the type of the transmission information includes only the transmission of the user information, or simultaneously the transmission of the user information and the uplink control information UCI.

In one embodiment, the processing module 301 is specifically configured to: only N symbols of the user information are transmitted as a guard interval.

In an embodiment, if 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 used only for transmitting the user information, the processing module 301 is specifically configured to:

and determining the protection interval according to the type of the user information transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit.

In an embodiment, if 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 for simultaneously transmitting the user information and UCI, the processing module 301 is specifically configured to: and determining the guard interval according to the type of UCI of the PUSCH transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

In an embodiment, if the symbols in the first symbol set are all used for transmitting PUCCH, 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: and determining a guard interval according to the type of UCI of the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit.

In one embodiment, if none of the symbols in the first set of symbols transmit a channel, the guard interval is a selection of 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 an embodiment, if the symbols in the first symbol set are all used for transmitting SRS, 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: and determining a guard interval according to at least one of the type and the transmission mode of SRS transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

In an embodiment, if the symbols in the first symbol set are used for transmitting PUSCH and SRS; 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: and determining the guard interval according to at least one of the type of SRS transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, the transmission mode of the SRS and the information type of the transmitted PUSCH.

In one embodiment, the processing module 301 is specifically configured to: if the information of the PUSCH includes UCI, N symbols of the SRS are transmitted as a guard interval.

In an embodiment, the types of SRS include SRS for positioning and SRS for sounding, and the processing module 301 is specifically configured to: taking N symbols of SRS transmitted for positioning as a guard interval; or (b)

The N symbols of PUSCH are transmitted as guard intervals.

In an embodiment, the SRS transmission manner includes periodic, semi-persistent, and aperiodic transmission, and the processing module 301 is specifically configured to: taking N symbols of a transmission period or semi-persistent SRS as a guard interval; or (b)

The N symbols of PUSCH are transmitted as guard intervals.

In an embodiment, if the symbols in the first symbol set are used for transmitting PUCCH and SRS; 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: the N symbols of the SRS are transmitted as guard intervals.

In an embodiment, if the first symbol set includes symbols for transmitting SRS and symbols for not transmitting channels; 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: the N symbols of the non-transmission channel are taken as guard intervals.

In an embodiment, if the first symbol set includes a symbol for transmitting PUSCH and a symbol for transmitting 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, and the number of symbols for transmitting PUSCH in the consecutive N symbols is greater than or equal to the number of symbols for transmitting PUCCH.

In an embodiment, if the first symbol set includes a symbol for transmitting PUSCH and a symbol for not transmitting a channel;

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, where the number of symbols of the consecutive N symbols that do not transmit a channel is greater than or equal to the number of symbols that transmit PUSCH.

In an embodiment, if the first symbol set includes a symbol for transmitting PUCCH and a symbol for not transmitting a channel;

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, and the number of symbols of the consecutive N symbols that do not transmit a channel is greater than or equal to the number of symbols that transmit the PUCCH.

In an embodiment, if the first symbol set includes a symbol for transmitting PUSCH, a symbol for transmitting PUCCH, and a symbol for not transmitting a channel;

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, where the number of symbols of the consecutive N symbols that do not transmit a channel is greater than or equal to the number of symbols that transmit PUSCH, and the number of symbols that transmit PUSCH is greater than or equal to the number of symbols that transmit PUCCH.

In an embodiment, if the first symbol set includes a symbol for transmitting SRS, a symbol for transmitting PUCCH, and a symbol for not transmitting a channel; 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, where the number of symbols of the consecutive N symbols that do not transmit channels is greater than or equal to the number of symbols that transmit SRS, and the number of symbols that transmit SRS is greater than or equal to the number of symbols that transmit PUCCH.

In an embodiment, if the first symbol set includes a symbol for transmitting SRS, a symbol for transmitting PUSCH, and a symbol for not transmitting a channel; the guard interval is a selection of 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 of the non-transmission channel is larger than or equal to the number of symbols of the transmission SRS, and the number of symbols of the transmission SRS is larger than or equal to the number of symbols of the transmission PUSCH; or (b)

The number of symbols of the non-transmission channel is greater than or equal to the number of symbols of the transmission PUSCH, which is greater than or equal to the number of symbols of the transmission SRS.

In an embodiment, if the first symbol set includes a symbol for transmitting SRS, a symbol for transmitting PUSCH, and a symbol for transmitting PUCCH; the guard interval is a selection of 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 transmitting SRS is larger than or equal to the number of symbols for transmitting PUSCH, and the number of symbols for transmitting PUSCH is larger than or equal to the number of symbols for transmitting PUCCH; or (b)

The number of symbols for transmitting PUSCH is greater than or equal to the number of symbols for transmitting SRS, which is greater than or equal to the number of symbols for transmitting PUCCH.

In an embodiment, if the first symbol set includes a symbol for transmitting SRS, a symbol for transmitting PUSCH, a symbol for transmitting PUCCH, and a symbol for not transmitting a channel; the guard interval is a selection of 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 of the non-transmission channel is larger than or equal to the number of symbols of the transmission PUSCH, the number of symbols of the transmission PUSCH is larger than or equal to the number of symbols of the transmission SRS, and the number of symbols of the transmission SRS is larger than or equal to the number of symbols of the transmission PUCCH; or (b)

In an embodiment, the terminal device 300 further comprises: a transceiver module 302.

The transceiver module 302 performs a corresponding operation at the determined guard interval.

The processing module 301 is specifically configured to perform at least one of the following at the determined guard interval: and (3) not transmitting/transmitting channels, carrying out frequency sub-band readjustment, and carrying out rate matching on symbols belonging to a protection interval in symbols of a transmission uplink channel.

The technical scheme of the terminal device provided by the embodiment of the present application for executing the foregoing method embodiment is similar to the implementation principle and technical effect, and will not be described herein again.

Fig. 33 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 33, a network device 400 provided in an embodiment of the present application includes:

a processing module 401, configured to determine, according to an uplink channel receiving condition of symbols in the first symbol set, N symbols in the first symbol set as guard intervals;

In an embodiment, the uplink channel reception condition 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 sounding reference signal SRS, or not receiving a channel.

In an embodiment, if the symbols in the first symbol set are all used for receiving PUSCH, 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: and determining a guard interval according to the types of the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit, wherein the types of the received information comprise only the received user information or the received user information and the uplink control information UCI.

In one embodiment, the processing module 401 is specifically configured to: only N symbols receiving user information are taken as guard intervals.

In an embodiment, if 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 used only for receiving the user information, the processing module 401 is specifically configured to:

the guard interval is determined based on the type of user 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.

In an embodiment, if 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 for receiving the user information and UCI at the same time, the processing module 401 is specifically configured to:

and determining the guard interval according to the type of UCI of the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

In an embodiment, if the symbols in the first symbol set are all used for receiving PUCCH, 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: the guard interval is determined according to the last N symbols at the end of the first time unit and the type of UCI of the first N symbols received PUCCH at the beginning of the second time unit.

In one embodiment, 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 if none of the symbols in the first set of symbols receives a channel.

In an embodiment, if the symbols in the first symbol set are all used for receiving SRS, 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: and determining a guard interval according to at least one of the type and the receiving mode of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning of the second time unit.

In an embodiment, if the symbols in the first symbol set are used for receiving PUSCH and SRS; 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: and determining the guard interval according to at least one of the type of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, the receiving mode of the SRS and the information type of the received PUSCH.

In one embodiment, the processing module 401 is specifically configured to: if the information of the received PUSCH includes UCI, N symbols of the received SRS are used as a guard interval.

In an embodiment, the types of SRS include SRS for positioning and SRS for sounding, and the processing module 401 is specifically configured to: taking N symbols of SRS received for positioning as a guard interval; or (b)

The N symbols of the received PUSCH are taken as guard intervals.

In an embodiment, the SRS reception manner includes periodic, semi-persistent, and aperiodic reception, and the processing module 401 is specifically configured to: taking N symbols of a receiving period or a semi-continuous SRS as a guard interval; or (b)

The N symbols of the received PUSCH are taken as guard intervals.

In an embodiment, if the symbols in the first symbol set are used for receiving PUCCH and SRS; 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: the N symbols of the received SRS are taken as a guard interval.

In an embodiment, if the first symbol set includes symbols for receiving SRS and symbols for not receiving 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: the N symbols of the non-received channel are taken as guard intervals.

In an embodiment, if the first symbol set includes a symbol for receiving PUSCH and a symbol for receiving 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, 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.

In an embodiment, if the first symbol set includes symbols for receiving PUSCH and symbols for not receiving channel; 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, where the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols that receive PUSCH.

In an embodiment, if the first symbol set includes symbols for receiving PUCCH and symbols for not receiving a channel; 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, and the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols of the received PUCCH.

In an embodiment, if the first symbol set includes a symbol for receiving PUSCH, a symbol for receiving PUCCH, and a symbol for not receiving a channel; 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, where the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols that receive PUSCH, and the number of symbols that receive PUSCH is greater than or equal to the number of symbols that receive PUCCH.

In an embodiment, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUCCH, and a symbol for not receiving a channel; 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, where the number of symbols of the consecutive N symbols that do not receive channels is greater than or equal to the number of symbols that receive SRS, and the number of symbols that receive SRS is greater than or equal to the number of symbols that receive PUCCH.

In an embodiment, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUSCH, and a symbol for not receiving a channel; the guard interval is a selection of 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:

In an embodiment, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUSCH, and a symbol for receiving PUCCH; the guard interval is a selection of 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:

In an embodiment, if the first symbol set includes a symbol for receiving SRS, a symbol for receiving PUSCH, a symbol for receiving PUCCH, and a symbol for not receiving a channel; the guard interval is a selection of 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:

In an embodiment, the network device 400 further comprises: a transceiver module 402.

The transceiver module 402 is configured to perform frequency subband retuning at the determined guard interval.

The network device provided by the embodiment of the present application is used for executing the technical scheme of the network device of the foregoing method embodiment, and its implementation principle and technical effects are similar and are not described herein again.

It should be noted that, the above division of the modules of the terminal device or the network device is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a form of calling software by a processing element, and the method can be realized in a form of hardware by a part of modules. For example, the processing module may be a processing element that is set up separately, may be implemented in a chip of the above apparatus, or may be stored in a memory of the above apparatus in the form of program code, and may be called by a processing element of the above apparatus to execute the functions of the above determination module. The implementation of the other modules is similar. In addition, all or part of the modules can be integrated together or can be independently implemented. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form.

For example, the modules above may be one or more integrated circuits configured to implement the methods above, such as: one or more specific integrated circuits (application specific integrated circuit, ASIC), or one or more microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA), or the like. For another example, when a module above is implemented in the form of a processing element scheduler code, the processing element may be a general purpose processor, such as a central processing unit (central processing unit, CPU) or other processor that may invoke the program code. For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). 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, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

Fig. 34 is a schematic hardware structure of a terminal device according to an embodiment of the present application. As shown in fig. 34, the terminal device 500 may include: a transceiver 501, a processor 502, 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 at the terminal device side in any of the foregoing method embodiments.

In one embodiment, the processor 502 may be a chip.

Fig. 35 is a schematic hardware structure of a network device according to an embodiment of the present application. As shown in fig. 35, the network device 600 may include: a transceiver 601, a processor 602, 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 at the network device side in any of the foregoing method embodiments.

In one embodiment, the processor 602 may be a chip.

The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores computer execution instructions, and the computer execution instructions are used for realizing the technical scheme of the terminal equipment side in any method embodiment when being executed by a processor.

The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores computer execution instructions, and the computer execution instructions are used for realizing the technical scheme of the network equipment side in any method embodiment when being executed by a processor.

The embodiment of the application also provides a program, when the program is executed by a processor, the program is used for executing the technical scheme of the terminal equipment side in any of the method embodiments.

The embodiment of the application also provides a program which is used for executing the technical scheme of the network equipment side in any of the method embodiments when being executed by a processor.

The embodiment of the application also provides a computer program product, which comprises program instructions for realizing the technical scheme of the terminal equipment side in any of the method embodiments.

The embodiment of the application also provides a computer program product comprising program instructions for implementing the technical scheme of the network equipment side in any of the method embodiments.

The embodiment of the application also provides a chip, which comprises: the processing module and the communication interface, the processing module can execute the technical scheme of the terminal equipment side in the foregoing method embodiment.

Further, the chip further comprises a storage module (such as a memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and execution of the instructions stored in the storage module enables the processing module to execute the technical scheme of the terminal equipment side.

The embodiment of the application also provides a chip, which comprises: the processing module and the communication interface, the processing module can execute the technical scheme of the network equipment side in the foregoing method embodiment.

Further, the chip further comprises a storage module (such as a memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and execution of the instructions stored in the storage module enables the processing module to execute the technical scheme of the network equipment side.

In the present application, "at least two" means two or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the front and rear associated objects are an "or" relationship; in the formula, the character "/" indicates that the front and rear associated objects are a "division" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the embodiment of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.

Claims

1. A method for determining a guard interval, comprising:

according to the uplink channel sending condition of symbols in a first symbol set and the priority order of channel sending types, N symbols in the first symbol set are determined to be guard intervals;

2. The method of claim 1, wherein the N symbols as the guard interval are consecutive symbols, and wherein the symbols on both sides of the guard interval belong to different time units.

3. A method according to claim 1 or 2, characterized in that,

the guard interval is the last N symbols at the end of the first time unit; or (b)

4. The method of any of claims 1-3, wherein the uplink channel transmission of symbols in the first set of symbols comprises at least one of transmitting a physical uplink shared channel, PUSCH, transmitting a physical uplink control channel, PUCCH, transmitting a sounding reference signal, SRS, or not transmitting a channel.

5. The method according to any of claims 1-4, wherein 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 if the symbols in the first set of symbols are all used for transmitting PUSCH;

the determining, according to the uplink channel transmission condition of the symbols in the first symbol set and the priority order of the channel transmission types, that the N symbols in the first symbol set are guard intervals includes: and determining the guard interval according to the types of the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, wherein the types of the transmitted information comprise only the transmitted user information or the transmitted user information and the uplink control information UCI at the same time.

6. The method of claim 5, wherein determining the guard interval based on the last N symbols at the end of the first time unit and the type of information transmitted by the first N symbols at the beginning of the second time unit comprises:

and taking the N symbols which only send the user information as the guard interval.

7. The method according to claim 5 or 6, wherein if 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 each only used for transmitting user information, the determining the guard interval according to the type of the information transmitted 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 comprises:

and determining the guard interval according to the type of the user information transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

8. The method according to claim 5 or 6, wherein if 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 each used for simultaneously transmitting user information and UCI, the determining the guard interval according to the type of the transmission 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 includes:

And determining the guard interval according to the type of UCI of the PUSCH transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

9. The method according to any of claims 1-4, wherein if the symbols in the first set of symbols are all used for transmitting PUCCH, 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 determining, according to the uplink channel transmission condition of the symbols in the first symbol set and the priority order of the channel transmission types, that the N symbols in the first symbol set are guard intervals includes: and determining a guard interval according to the last N symbols at the tail end of the first time unit and the UCI types of the PUCCH transmitted by the first N symbols at the beginning end of the second time unit.

10. The method of any of claims 1-4, wherein the guard interval is a selection of consecutive N symbols from a last N symbols at the end of the first time unit and a first N symbols at the beginning of the second time unit if none of the symbols in the first set of symbols transmit a channel.

11. The method according to any of claims 1-4, wherein 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 if the symbols in the first set of symbols are all used for transmitting SRS;

the determining, according to the uplink channel transmission condition of the symbols in the first symbol set and the priority order of the channel transmission types, that the N symbols in the first symbol set are guard intervals includes: and determining a guard interval according to at least one of the type and the transmission mode of SRS transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

12. The method according to any of claims 1-4, wherein if a symbol in the first set of symbols is used for transmitting PUSCH and SRS; 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 determining, according to the uplink channel transmission condition of the symbols in the first symbol set and the priority order of the channel transmission types, that the N symbols in the first symbol set are guard intervals includes:

And determining the guard interval according to at least one of the type of SRS transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, the transmission mode of the SRS and the information type of the transmitted PUSCH.

13. The method of claim 12, wherein the step of determining the position of the probe is performed,

the determining the guard interval according to the information type of the PUSCH transmitted 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 includes: and if the information of the sending PUSCH comprises UCI, taking the N symbols of the sending SRS as a protection interval.

14. The method of claim 12, wherein the type of SRS comprises SRS for positioning and SRS for sounding, wherein the determining the guard interval 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 transmits the type of SRS comprises:

taking the N symbols for transmitting SRS used for positioning as the guard interval; or (b)

And taking the N symbols for sending the PUSCH as the guard interval.

15. The method of claim 12, wherein the SRS transmission scheme includes periodic, semi-persistent, and aperiodic transmission, and wherein the determining the guard interval 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 includes:

Taking the N symbols of a sending period or semi-continuous SRS as the guard interval; or (b)

And taking the N symbols for sending the PUSCH as the guard interval.

16. The method according to any of claims 1-4, wherein if a symbol in the first set of symbols is used for transmitting PUCCH and SRS; 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 determining, according to the uplink channel transmission condition of the symbols in the first symbol set and the priority order of the channel transmission types, that the N symbols in the first symbol set are guard intervals includes: and taking the N symbols for sending SRS as the guard interval.

17. The method according to any of claims 1-4, wherein if the first set of symbols includes symbols for transmitting SRS and symbols for not transmitting channels; 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 determining, according to the uplink channel transmission condition of the symbols in the first symbol set and the priority order of the channel transmission types, that the N symbols in the first symbol set are guard intervals includes: and taking the N symbols of the non-transmitted channel as the guard interval.

18. The method according to any of claims 1-4, wherein if the first set of symbols includes symbols for transmitting PUSCH and symbols for transmitting 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, where the number of symbols for transmitting PUSCH in the consecutive N symbols is greater than or equal to the number of symbols for transmitting PUCCH.

19. The method according to any of claims 1-4, wherein if the first set of symbols 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, where the number of symbols in the consecutive N symbols that do not transmit channels is greater than or equal to the number of symbols that transmit PUSCH.

20. The method according to any of claims 1-4, wherein if the first set of symbols 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, where the number of symbols of the consecutive N symbols that do not transmit channels is greater than or equal to the number of symbols that transmit PUCCH.

21. The method according to any of claims 1-4, wherein if the first set of symbols includes symbols for transmitting PUSCH, symbols for transmitting PUCCH, and symbols for not transmitting channels;

the guard interval is to select continuous N symbols from the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, where the number of symbols of the continuous N symbols that do not transmit channels is greater than or equal to the number of symbols that transmit PUSCH, and the number of symbols that transmit PUSCH is greater than or equal to the number of symbols that transmit PUCCH.

22. The method according to any of claims 1-4, wherein if the first set of symbols includes symbols for transmitting SRS, symbols for transmitting PUCCH, and symbols for not transmitting channels; the guard interval is that consecutive N symbols are 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, and the number of symbols of the consecutive N symbols that do not transmit channels is greater than or equal to the number of symbols that transmit SRS, and the number of symbols that transmit SRS is greater than or equal to the number of symbols that transmit PUCCH.

23. The method according to any of claims 1-4, wherein if the first set of symbols includes symbols for transmitting SRS, symbols for transmitting PUSCH, and symbols for not transmitting channels; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

24. The method according to any of claims 1-4, wherein if the first set of symbols includes a symbol for transmitting SRS, a symbol for transmitting PUSCH, and a symbol for transmitting PUCCH; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

25. The method according to any of claims 1-4, wherein if the first set of symbols includes symbols for transmitting SRS, PUSCH, PUCCH, and no channel; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

26. A method for determining a guard interval, comprising:

according to the uplink channel receiving condition of symbols in a first symbol set and the priority order of channel receiving types, N symbols in the first symbol set are determined to be guard intervals;

27. The method of claim 26, wherein the N symbols that are the guard interval are consecutive symbols, and wherein the symbols on both sides of the guard interval belong to different time units.

28. The method according to claim 26 or 27, wherein,

29. The method according to any of claims 26-28, wherein the uplink channel reception situation of the symbols in the first symbol set comprises at least one of receiving a physical uplink shared channel, PUSCH, receiving a physical uplink control channel, PUCCH, receiving a sounding reference signal, SRS, or not receiving a channel.

30. The method according to any of claims 26-29, wherein 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 if the symbols in the first set of symbols are all used for receiving PUSCH;

the determining, according to the uplink channel receiving condition of the symbols in the first symbol set and the priority order of the channel receiving types, that the N symbols in the first symbol set are guard intervals includes: and determining the guard interval according to the type of the last N symbols at the tail end of the first time unit and the type of the first N symbols at the beginning end of the second time unit, wherein the type of the received information comprises that only user information is received or user information and uplink control information UCI are received at the same time.

31. The method of claim 30, wherein the determining the guard interval based on 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 received information comprises:

The N symbols, which receive only user information, are taken as the guard interval.

32. The method according to claim 30 or 31, wherein if 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 each only used for receiving user information, said determining the guard interval based on 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 comprises:

and determining the guard interval according to the type of receiving the user information by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

33. The method according to claim 30 or 31, wherein if 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 each used for simultaneously receiving user information and UCI, the determining 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 comprises:

and determining the guard interval according to the last N symbols at the tail end of the first time unit and the UCI types of the PUSCH received by the first N symbols at the beginning end of the second time unit.

34. The method according to any of claims 26-29, wherein 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 if the symbols in the first set of symbols are all used for receiving PUCCH;

the determining, according to the uplink channel receiving condition of the symbols in the first symbol set and the priority order of the channel receiving types, that the N symbols in the first symbol set are guard intervals includes: and determining a guard interval according to the last N symbols at the tail end of the first time unit and the UCI types of the PUCCH received by the first N symbols at the beginning end of the second time unit.

35. The method of any of claims 26-29, wherein the guard interval is a selection of consecutive N symbols from a last N symbols at the end of the first time unit and a first N symbols at the beginning of the second time unit if none of the symbols in the first set of symbols receives a channel.

36. The method according to any of claims 26-29, wherein 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 if the symbols in the first set of symbols are all used for receiving SRS;

The determining, according to the uplink channel receiving condition of the symbols in the first symbol set and the priority order of the channel receiving types, that the N symbols in the first symbol set are guard intervals includes: and determining a guard interval according to at least one of the type and the receiving mode of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

37. The method according to any of claims 26-29, wherein if the symbols in the first set of symbols are used for receiving PUSCH and SRS; 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 determining, according to the uplink channel receiving condition of the symbols in the first symbol set and the priority order of the channel receiving types, that the N symbols in the first symbol set are guard intervals includes:

and determining the guard interval according to at least one of the type of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, the receiving mode of the SRS and the information type of the received PUSCH.

38. The method of claim 37, wherein the step of determining the position of the probe comprises,

the determining the guard interval 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 includes: and if the information of the received PUSCH comprises UCI, taking the N symbols of the received SRS as a protection interval.

39. The method of claim 37, wherein the type of SRS comprises SRS for positioning and SRS for sounding, wherein the determining the guard interval 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 to receive the type of SRS comprises:

taking the N symbols for receiving SRS used for positioning as the guard interval; or (b)

And taking the N symbols of the received PUSCH as the guard interval.

40. The method of claim 37, wherein the manner of SRS reception comprises periodic, semi-persistent, and aperiodic reception, and wherein the determining the guard interval 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 for SRS reception comprises:

Taking the N symbols of a receiving period or semi-continuous SRS as the guard interval; or (b)

And taking the N symbols of the received PUSCH as the guard interval.

41. The method according to any of claims 26-29, wherein if a symbol in the first set of symbols is used for receiving PUCCH and SRS; 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 determining, according to the uplink channel receiving condition of the symbols in the first symbol set and the priority order of the channel receiving types, that the N symbols in the first symbol set are guard intervals includes: and taking the N symbols of the received SRS as the guard interval.

42. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving SRS and symbols for not receiving channels; 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 determining, according to the uplink channel receiving condition of the symbols in the first symbol set and the priority order of the channel receiving types, that the N symbols in the first symbol set are guard intervals includes: the N symbols of the non-received channel are taken as the guard interval.

43. The method according to any of claims 26-29, wherein if the first set of symbols comprises symbols for receiving PUSCH and symbols for receiving 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, where 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.

44. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving PUSCH and symbols for not receiving 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, where the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols that receive PUSCH.

45. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving PUCCH and symbols for not receiving channel;

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, where the number of symbols of the consecutive N symbols that do not receive a channel is greater than or equal to the number of symbols that receive a PUCCH.

46. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving PUSCH, symbols for receiving PUCCH, and symbols for not receiving channels;

the guard interval is to select continuous N symbols from the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, where the number of symbols of the continuous N symbols that do not receive channels is greater than or equal to the number of symbols that receive PUSCH, and the number of symbols that receive PUSCH is greater than or equal to the number of symbols that receive PUCCH.

47. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUCCH, and symbols for not receiving channel; the guard interval is to select continuous 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, where the number of symbols of the continuous N symbols that do not receive channels is greater than or equal to the number of symbols that receive SRS, and the number of symbols that receive SRS is greater than or equal to the number of symbols that receive PUCCH.

48. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUSCH, and symbols for not receiving channels; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

49. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUSCH, and symbols for receiving PUCCH; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

50. The method according to any of claims 26-29, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUSCH, symbols for receiving PUCCH, and symbols not receiving channels; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

51. A terminal device, comprising:

the processing module is used for determining N symbols in the first symbol set as a protection interval according to the uplink channel transmission condition of the symbols in the first symbol set and the priority order of the channel transmission types;

52. The terminal device of claim 51, wherein the N symbols as the guard interval are consecutive symbols, and wherein the symbols on both sides of the guard interval belong to different time units.

53. The terminal device of claim 51 or 52, wherein,

54. The terminal device of any of claims 51-53, wherein the uplink channel transmission case of symbols in the first set of symbols includes at least one of transmitting a physical uplink shared channel, PUSCH, transmitting a physical uplink control channel, PUCCH, transmitting a sounding reference signal, SRS, or not transmitting a channel.

55. The terminal device according to any of the claims 51-54, wherein 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 if the symbols in the first set of symbols are all used for transmitting PUSCH;

the processing module is specifically configured to determine the guard interval according to a type of transmission information of a last N symbols at the end of the first time unit and a first N symbols at the beginning of the second time unit, where the type of transmission information includes only transmission of user information, or simultaneous transmission of user information and uplink control information UCI.

56. The terminal device of claim 55, wherein the processing module is specifically configured to:

57. The terminal device according to claim 55 or 56, wherein if 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 used only for transmitting user information, the processing module is specifically configured to:

58. The terminal device of claim 55 or 56, wherein if 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 for simultaneously transmitting user information and UCI, the processing module is specifically configured to:

59. The terminal device according to any of the claims 51-54, wherein if the symbols in the first set of symbols are all used for transmitting PUCCH, 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 is specifically configured to: and determining a guard interval according to the last N symbols at the tail end of the first time unit and the UCI types of the PUCCH transmitted by the first N symbols at the beginning end of the second time unit.

60. The terminal device according to any of the claims 51-54, wherein 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 if none of the symbols in the first set of symbols transmit a channel.

61. The terminal device according to any of the claims 51-54, wherein if the symbols in the first set of symbols are all used for transmitting SRS, 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 is specifically configured to: and determining a guard interval according to at least one of the type and the transmission mode of SRS transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

62. The terminal device according to any of claims 51-54, wherein if a symbol in the first set of symbols is used for transmitting PUSCH and SRS; 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 is specifically configured to: and determining the guard interval according to at least one of the type of SRS transmitted by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, the transmission mode of the SRS and the information type of the transmitted PUSCH.

63. The terminal device of claim 62, wherein the processing module is specifically configured to:

and if the information of the sending PUSCH comprises UCI, taking the N symbols of the sending SRS as a protection interval.

64. The terminal device of claim 62, wherein the SRS types include SRS for positioning and SRS for sounding, and wherein the processing module is specifically configured to:

And taking the N symbols for sending the PUSCH as the guard interval.

65. The terminal device of claim 62, wherein the SRS is transmitted in a manner including periodic, semi-persistent, and aperiodic transmission, and the processing module is specifically configured to:

And taking the N symbols for sending the PUSCH as the guard interval.

66. The terminal device according to any of claims 51-54, wherein if a symbol in the first set of symbols is used for transmitting PUCCH and SRS; 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 is specifically configured to: and taking the N symbols for sending SRS as the guard interval.

67. The terminal device according to any of the claims 51-54, wherein if the first set of symbols comprises symbols for transmitting SRS and symbols of a non-transmitting 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 is specifically configured to: and taking the N symbols of the non-transmitted channel as the guard interval.

68. The terminal device according to any of the claims 51-54, wherein if the first set of symbols comprises symbols for transmitting PUSCH and symbols for transmitting PUCCH;

69. The terminal device according to any of claims 51-54, wherein if the first set of symbols includes symbols for transmitting PUSCH and symbols for not transmitting channels;

70. The terminal device according to any of the claims 51-54, characterized in that if the first set of symbols comprises symbols for transmitting PUCCH and symbols of a non-transmitting channel;

71. The terminal device according to any of claims 51-54, wherein if the first set of symbols includes symbols for transmitting PUSCH, symbols for transmitting PUCCH, and symbols for not transmitting channels;

72. The terminal device according to any of the claims 51-54, characterized in that if the first set of symbols comprises symbols for transmitting SRS, symbols for transmitting PUCCH, and symbols for not transmitting channels; the guard interval is that consecutive N symbols are 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, and the number of symbols of the consecutive N symbols that do not transmit channels is greater than or equal to the number of symbols that transmit SRS, and the number of symbols that transmit SRS is greater than or equal to the number of symbols that transmit PUCCH.

73. The terminal device according to any of claims 51-54, wherein if the first set of symbols includes symbols for transmitting SRS, symbols for transmitting PUSCH, and symbols for not transmitting channels; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

74. The terminal device according to any of the claims 51-54, characterized in that if the first set of symbols comprises symbols for transmitting SRS, symbols for transmitting PUSCH, and symbols for transmitting PUCCH; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

75. The terminal device according to any of claims 51-54, wherein if the first set of symbols includes symbols for transmitting SRS, PUSCH, PUCCH, and no channel; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

76. A network device, comprising:

the processing module is used for determining N symbols in the first symbol set as a protection interval according to the uplink channel receiving condition of the symbols in the first symbol set and the priority order of the channel receiving types;

77. The network device of claim 76, wherein the N symbols that are the guard interval are consecutive symbols and the symbols on both sides of the guard interval belong to different time units.

78. The network device of claim 76 or 77,

79. The network device of any of claims 76-78, wherein the uplink channel reception of symbols in the first set of symbols comprises at least one of receiving a physical uplink shared channel, PUSCH, receiving a physical uplink control channel, PUCCH, receiving a sounding reference signal, SRS, or not receiving a channel.

80. The network device of any of claims 76-79, wherein the guard interval is a last N symbols at the end of the first time unit or a first N symbols at the beginning of the second time unit if the symbols in the first set of symbols are all used for receiving PUSCH;

The processing module is specifically configured to: and determining the guard interval according to the type of the last N symbols at the tail end of the first time unit and the type of the first N symbols at the beginning end of the second time unit, wherein the type of the received information comprises that only user information is received or user information and uplink control information UCI are received at the same time.

81. The network device of claim 80, wherein the processing module is specifically configured to:

82. The network device of claim 80 or 81, wherein if 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 each only used for receiving user information, the processing module is specifically configured to:

83. The network device of claim 80 or 81, wherein if 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 for receiving user information and UCI at the same time, the processing module is specifically configured to:

84. The network device of any of claims 76-79, wherein the guard interval is a last N symbols at the end of the first time unit or a first N symbols at the beginning of the second time unit if the symbols in the first set of symbols are all used to receive PUCCH;

the processing module is specifically configured to: and determining a guard interval according to the last N symbols at the tail end of the first time unit and the UCI types of the PUCCH received by the first N symbols at the beginning end of the second time unit.

85. The network device of any of claims 76-79, wherein the guard interval is a selection of consecutive N symbols from a last N symbols at the end of the first time unit and a first N symbols at the beginning of the second time unit if none of the symbols in the first set of symbols receives a channel.

86. The network device of any of claims 76-79, wherein the guard interval is a last N symbols at the end of the first time unit or a first N symbols at the beginning of the second time unit if the symbols in the first set of symbols are all used to receive SRS;

The processing module is specifically configured to: and determining a guard interval according to at least one of the type and the receiving mode of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit.

87. The network device of any one of claims 76-79, wherein if a symbol in the first set of symbols is used to receive PUSCH and SRS; 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 is specifically configured to: and determining the guard interval according to at least one of the type of SRS received by the last N symbols at the tail end of the first time unit and the first N symbols at the beginning end of the second time unit, the receiving mode of the SRS and the information type of the received PUSCH.

88. The network device of claim 87, wherein the processing module is configured to:

and if the information of the received PUSCH comprises UCI, taking the N symbols of the received SRS as a protection interval.

89. The network device of claim 87, wherein the type of SRS comprises SRS for positioning and SRS for sounding, and wherein the processing module is configured to:

And taking the N symbols of the received PUSCH as the guard interval.

90. The network device of claim 87, wherein the SRS is received in a manner that includes periodic, semi-persistent, and aperiodic reception, and wherein the processing module is configured to:

And taking the N symbols of the received PUSCH as the guard interval.

91. The network device of any one of claims 76-79, wherein if a symbol in the first set of symbols is used to receive PUCCH and SRS; 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 is specifically configured to: and taking the N symbols of the received SRS as the guard interval.

92. The network device of any of claims 76-79, wherein if the first set of symbols includes symbols for receiving SRS and symbols for not receiving channels; 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 is specifically configured to: the N symbols of the non-received channel are taken as the guard interval.

93. The network device of any one of claims 76-79, wherein if the first set of symbols includes symbols for receiving PUSCH and symbols for receiving PUCCH;

94. The network device of any of claims 76-79, wherein if the first set of symbols includes symbols for receiving PUSCH and symbols for not receiving channels;

95. The network device of any one of claims 76-79, wherein if the first set of symbols includes symbols for receiving PUCCH and symbols for not receiving channel;

96. The network device of any one of claims 76-79, wherein if the first set of symbols includes symbols for receiving PUSCH, symbols for receiving PUCCH, and symbols for not receiving a channel;

97. The network device of any of claims 76-79, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUCCH, and symbols for not receiving channel; the guard interval is to select continuous 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, where the number of symbols of the continuous N symbols that do not receive channels is greater than or equal to the number of symbols that receive SRS, and the number of symbols that receive SRS is greater than or equal to the number of symbols that receive PUCCH.

98. The network device of any of claims 76-79, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUSCH, and symbols for not receiving channels; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

99. The network device of any one of claims 76-79, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUSCH, and symbols for receiving PUCCH; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

100. The network device of any of claims 76-79, wherein if the first set of symbols includes symbols for receiving SRS, symbols for receiving PUSCH, symbols for receiving PUCCH, and symbols for not receiving a channel; the guard interval is a selection of consecutive N symbols from a last N symbols at an end of the first time unit and a first N symbols at a beginning of the second time unit, wherein the consecutive N symbols are:

101. A terminal device, comprising: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory, causing the processor to perform the method of any one of claims 1-25.

102. A network device, comprising: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory causing the processor to perform the method of any one of claims 26-50.

103. A computer readable storage medium having stored therein computer executable instructions for implementing the method of any of claims 1-25 when the computer executable instructions are executed by a processor.

104. A computer readable storage medium having stored therein computer executable instructions for implementing the method of any of claims 26-50 when the computer executable instructions are executed by a processor.