CN109600794B

CN109600794B - Communication method and device

Info

Publication number: CN109600794B
Application number: CN201710944064.0A
Authority: CN
Inventors: 胡远洲; 丁梦颖; 秦熠; 栗忠峰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2021-01-15
Anticipated expiration: 2037-09-30
Also published as: CN109600794A; WO2019062947A1

Abstract

A communication method and device are used for determining a reserved time slot and a reserved symbol so as to reduce the collision probability between SRS and uplink data. One of the methods for allocating uplink control channel resources includes: the method comprises the steps that terminal equipment obtains reference information, the reference information and subcarrier intervals of the terminal equipment or system parameters of the terminal equipment indicate reserved time slots and reserved symbols in the reserved time slots; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and the terminal equipment determines the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method and device.

Background

In a communication system, a reference signal is a fixed signal that a transmitting end sends to a receiving end. Since the receiving end is known to such signals, the receiving end can process the received signals and the signals of the transmitting end to obtain system or channel related information, such as channel parameters, channel quality, or phase rotation of signals caused by the transmitting end or receiving end devices. A Sounding Reference Signal (SRS) is one of reference signals, and may be used for uplink channel quality measurement, downlink channel quality measurement, uplink beam management, and other functions.

In a New Radio (NR) system of the fifth generation mobile communication technology (5G), how a terminal device determines a slot (slot) of SRS transmission of the terminal device in a cell to reduce collision between the SRS and uplink data becomes a problem to be solved urgently.

Disclosure of Invention

The application provides a communication method and equipment, which are used for determining a reserved time slot and a reserved symbol so as to reduce the collision probability between an SRS and uplink data.

In a first aspect, a communication method is provided, which may be performed by a terminal device. The method comprises the following steps: the method comprises the steps that terminal equipment obtains reference information, the reference information and subcarrier intervals of the terminal equipment or system parameters of the terminal equipment indicate reserved time slots and reserved symbols in the reserved time slots; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and the terminal equipment determines the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

Accordingly, in a second aspect, a communication method is provided that may be performed by a network device, such as a base station. The method comprises the following steps: the method comprises the steps that network equipment obtains reference information, the reference information and a subcarrier interval of terminal equipment or a system parameter of the terminal equipment indicate a reserved time slot and a reserved symbol in the reserved time slot; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and the network equipment determines the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

In this embodiment, the terminal device may determine the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the reference information, and the subcarrier interval of the terminal device or the system parameter of the terminal device, for example, the reserved symbol may be used for transmitting a sounding reference signal and/or a physical uplink control channel, and the terminal device may not send uplink data in the reserved symbol, so as to reduce collision between the sounding reference signal and the uplink data and improve system performance.

In one possible design, the reference information includes at least one of a length of a reference time unit, a reference system parameter, and a reference subcarrier spacing.

The system parameter is numerology, for example. The reference information is that a common information is defined, and each terminal device and network device in the cell can determine the reserved time slot and the reserved symbol according to the reference information, so as to avoid that the reserved time slots determined by different terminal devices cannot be aligned due to different understandings of different terminal devices on the length of the time unit, so that collision is generated between the SRS and the PUSCH. By the scheme provided by the embodiment of the application, the probability of collision between the SRS and the PUSCH can be obviously reduced.

In one possible design, the obtaining, by the terminal device, the length of the reference time unit or the reference system parameter includes: the terminal equipment receives a first notification signaling from network equipment, and the terminal equipment obtains the length of the reference time unit from the first notification signaling; the length of the reference time unit is the length of the maximum time scheduling unit supported by the communication system where the terminal equipment is located; or, the terminal device receives a second notification signaling from a network device, and the terminal device obtains the reference system parameter from the second notification signaling; the index of the reference system parameter is the minimum index of the system parameters supported by the communication system; or the terminal equipment determines a reference subcarrier interval according to the frequency band of the carrier where the terminal equipment is located and the mapping relation between the frequency band and the subcarrier interval, and determines the length of the minimum time scheduling unit of the reference subcarrier interval as the length of the reference time unit; or, the terminal device determines the reference system parameter according to the frequency band of the carrier where the terminal device is located, the mapping relationship between the frequency band and the subcarrier interval, and the mapping relationship between the subcarrier interval and the system parameter. Correspondingly, the network device sends a first notification signaling to the terminal device, where the first notification signaling is used to indicate the length of the reference time unit; the length of the reference time unit is the length of the maximum time scheduling unit supported by the communication system where the terminal equipment is located; or, the network device sends a second notification signaling to the terminal device, where the second notification signaling is used to indicate the reference system parameter; the index of the reference system parameter is a minimum index of system parameters supported by the communication system.

In the embodiment of the application, the terminal device can obtain the reference information according to the first notification signaling sent by the network device, and the terminal device only needs to receive the notification signaling without excessive work, which is beneficial to reducing the power consumption of the terminal device. Or, the terminal device may also determine the reference information by itself, for example, determine the reference information according to the frequency band of the carrier where the terminal device is located and other information, and thus, notification by the network device is not required, signaling interaction is reduced, and transmission resources are saved.

In one possible design, the terminal device further receives an ith indication information from the network device, where the ith indication information includes at least one bit; the ith indication information belongs to a signaling group, the signaling group comprises at least one indication information, i is an index of the indication information in the signaling group, and the indication information included in the signaling group is used for indicating the reserved time slot and a reserved symbol in the reserved time slot; then, the determining, by the terminal device, the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal device or the system parameter of the terminal device includes: and the terminal equipment determines the reserved time slot and the reserved symbol in the reserved time slot according to the ith indication information, the reference information, the number of the indication information included in the signaling group, the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment. Correspondingly, the network device further sends an ith indication information to the terminal device, where the ith indication information includes at least one bit; the ith indication information belongs to a signaling group, the signaling group comprises at least one indication information, i is an index of the indication information in the signaling group, and the indication information included in the signaling group is used for indicating the reserved time slot and a reserved symbol in the reserved time slot.

The reserved time slot and the reserved symbol can be directly determined through the indication information included in the signaling group, excessive steps are not needed, and the method is simple and easy to implement.

In one possible design, the determining, by the terminal device, the reserved time slot and the reserved symbol in the reserved time slot according to the ith indication information, the reference information, the number of indication information included in the signaling group, and a subcarrier interval of the terminal device or a system parameter of the terminal device includes:

when the ith indication information comprises at least one bit, and the value of at least one bit belongs to a first value range, determining S which is forward from the last symbol of the time slot calculated according to the following formula_i×Δf/Δf_REach symbol is the reserved symbol:

wherein the content of the first and second substances,

is the number of time slots, s_iTaking the value of at least one bit included in the ith indication information, wherein Δ f is the subcarrier interval of the terminal equipment, and Δ f_RAnd the reference subcarrier interval corresponding to the reference time unit is mod operation, and M is the number of indication information included in the signaling group.

when the ith indication information comprises at least one bit, and the value of at least one bit belongs to a first value range, determining S which is forward from the last symbol of the time slot calculated according to the following formula_i×μ/μ_REach symbol is the reserved symbol:

wherein the content of the first and second substances,

is the number of time slots, s_iFor the value of the at least one bit, μ is a system parameter of the terminal device, μ_RAnd for system transmission corresponding to the reference time unit, mod represents a modular operation, and M is the number of indication information included in the signaling group.

In one possible design, the at least one bit is a bitmap; the determining, by the terminal device, the reserved time slot and the reserved symbol in the reserved time slot according to the ith indication information, the reference information, the number of indication information included in the signaling group, and a subcarrier interval of the terminal device or a system parameter of the terminal device includes:

for satisfying the following formula

In the time slot of (1), if the k-th bit in at least one bit included in the i-th indication information is determined to be 1, the number is k × Δ f/Δ f_R(k+1)×Δf/Δf_R-the symbol of 1 is the reserved symbol; and/or the presence of a gas in the gas,

for the satisfaction of

In the time slot of (2), if the k-th bit in at least one bit included in the i-th indication information is determined to be 1, the number is k × μ/Δ μ_R(k+1)×μ/Δμ_R-the symbol of 1 is the reserved symbol;

wherein the content of the first and second substances,

is the number of time slots, s_iFor the bitmap, Δ f is the subcarrier spacing of the terminal device, Δ f_RIs the reference subcarrier interval corresponding to the reference time unit, mu is the system parameter of the terminal equipment, mu_RAnd for system transmission corresponding to the reference time unit, mod represents a modular operation, and M is the number of indication information included in the signaling group.

In a third aspect, a communication method is provided that is executable by a terminal device. The method comprises the following steps: the terminal equipment receives a third notification signaling from the network equipment; the terminal equipment determines a reserved time slot according to the third notification signaling, wherein the reserved time slot is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; the third notification signaling comprises at least one of the following configurations: the transmission period of the sounding reference signal is 4 time slots; the transmission period of the sounding reference signal is 8 time slots; the transmission period of the sounding reference signal is 640 time slots; the transmission period of the sounding reference signal is 1280 time slots; the transmission period of the sounding reference signal is a reserved number of slots.

Accordingly, in a fourth aspect, a communication method is provided that is executable by a network device, such as a base station. The method comprises the following steps: the network equipment generates a third notification signaling, wherein the third notification signaling is used for indicating a reserved time slot, the reserved time slot is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel, and the network equipment sends the third notification signaling to the terminal equipment; the third notification signaling comprises at least one of the following configurations: the transmission period of the sounding reference signal is 4 time slots; the transmission period of the sounding reference signal is 8 time slots; the transmission period of the sounding reference signal is 640 time slots; the transmission period of the sounding reference signal is 1280 time slots; the transmission period of the sounding reference signal is a reserved number of slots.

In one possible design, the third notification signaling includes at least one of the following configurations:

the first configuration index of the sounding reference signal is 637-640, the transmission period of the sounding reference signal is 4 time slots, and the transmission offset of the sounding reference signal is the difference value between the first configuration index and the 637;

the second configuration index of the sounding reference signal is 641-648, the transmission period of the sounding reference signal is 8 time slots, and the transmission offset of the sounding reference signal is the difference value between the second configuration index and 641;

the third configuration index of the sounding reference signal is 649-1288, the transmission period of the sounding reference signal is 640 time slots, and the transmission offset of the sounding reference signal is the difference value between the third configuration index and 650;

the fourth configuration index of the sounding reference signal is 1289-2568, the transmission period of the sounding reference signal is 1280 time slots, and the transmission offset of the sounding reference signal is the difference value between the third configuration index and 1289;

and the fifth configuration index of the sounding reference signal is 2569-4095, the transmission period of the sounding reference signal is a reserved number of time slots, and the transmission offset of the sounding reference signal is the difference value between the third configuration index and the reserved number.

Through the technical scheme provided by the embodiment of the application, the collision of SRS of 15KHz terminal equipment and PUSCH transmission of 30/60KHz terminal equipment can be effectively avoided through the configuration of the third notification signaling.

In a fifth aspect, a terminal device is provided. The terminal equipment has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the terminal device may include a processor. Optionally, the terminal device may further include a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the first aspect or any one of the possible designs of the first aspect.

In a sixth aspect, a network device is provided. The network equipment has the function of realizing the network equipment designed by the method. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the particular architecture of the network device may include a processor. Optionally, the network device may further include a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the second aspect or any one of the possible designs of the second aspect.

In a seventh aspect, a terminal device is provided. The terminal equipment has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the terminal device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the third aspect or any one of the possible designs of the third aspect.

In an eighth aspect, a network device is provided. The network equipment has the function of realizing the network equipment designed by the method. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the network device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the fourth aspect or any one of the possible designs of the fourth aspect.

In a ninth aspect, a terminal device is provided. The terminal equipment has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the terminal device may include a processing module. Optionally, the terminal device may further include a transceiver module. The processing module and the transceiver module may perform the respective functions in the method provided by the first aspect or any one of the possible designs of the first aspect.

In a tenth aspect, a network device is provided. The network equipment has the function of realizing the network equipment designed by the method. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the network device may include a processing module. Optionally, the network device may further include a transceiver module. The processing module and the transceiver module may perform the respective functions in the method provided by the second aspect or any one of the possible designs of the second aspect.

In an eleventh aspect, a terminal device is provided. The terminal equipment has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the terminal device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the respective functions in the method provided by the third aspect or any one of the possible designs of the third aspect.

In a twelfth aspect, a network device is provided. The network equipment has the function of realizing the network equipment designed by the method. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the network device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the respective functions in the method provided by the fourth aspect or any one of the possible designs of the fourth aspect.

In a thirteenth aspect, a communication device is provided. The communication device may be the terminal device designed in the above method, or a chip provided in the terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored in the memory comprises instructions which, when executed by the processor, cause the communication apparatus to perform the method performed by the terminal device of the first aspect described above or any one of the possible designs of the first aspect.

In a fourteenth aspect, a communications apparatus is provided. The communication device may be a network device designed by the method or a chip arranged in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored in the memory comprises instructions which, when executed by the processor, cause the communication apparatus to perform the method performed by the network device of the second aspect described above or any one of the possible designs of the second aspect.

In a fifteenth aspect, a communications apparatus is provided. The communication device may be the terminal device designed in the above method, or a chip provided in the terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored in the memory comprises instructions which, when executed by the processor, cause the communication apparatus to perform the method performed by the terminal device of the third aspect or any one of the possible designs of the third aspect.

In a sixteenth aspect, a communication device is provided. The communication device may be a network device designed by the method or a chip arranged in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored in the memory comprises instructions which, when executed by the processor, cause the communication apparatus to perform the method performed by the network device of the fourth aspect described above or any one of the possible designs of the fourth aspect.

In a seventeenth aspect, a communication system is provided that includes a network device and a terminal device. The terminal device is configured to obtain reference information, where the reference information indicates a reserved time slot and a reserved symbol in the reserved time slot together with a subcarrier interval of the terminal device or a system parameter of the terminal device; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; determining the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment; the network equipment is used for obtaining reference information, the reference information and a subcarrier interval of the terminal equipment or a system parameter of the terminal equipment indicate a reserved time slot and a reserved symbol in the reserved time slot; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and determining the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

In an eighteenth aspect, a communication system is provided that includes a network device and a terminal device. The terminal device is used for receiving a third notification signaling from the network device; determining a reserved time slot according to the third notification signaling, wherein the reserved time slot is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; the network device is used for generating a third notification signaling, wherein the third notification signaling is used for indicating a reserved time slot, and the reserved time slot is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; sending the third notification signaling to the terminal equipment; wherein the third notification signaling comprises at least one of the following configurations: the transmission period of the sounding reference signal is 4 time slots; the transmission period of the sounding reference signal is 8 time slots; the transmission period of the sounding reference signal is 640 time slots; the transmission period of the sounding reference signal is 1280 time slots; the transmission period of the sounding reference signal is a reserved number of slots.

A nineteenth aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the first aspect described above or any one of the possible designs of the first aspect.

A twentieth aspect provides a computer storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

A twenty-first aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method as set forth in the third aspect or any one of the possible designs of the third aspect.

In a twenty-second aspect, there is provided a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the fourth aspect described above or any one of the possible designs of the fourth aspect.

A twenty-third aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

A twenty-fourth aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

A twenty-fifth aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the third aspect or any one of the possible designs of the third aspect.

A twenty-sixth aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the fourth aspect or any one of the possible designs of the fourth aspect.

In this embodiment of the present application, the terminal device may determine the reserved time slot and the reserved symbol in the reserved time slot, for example, the reserved symbol may be used to transmit the sounding reference signal and/or the physical uplink control channel, and the terminal device may not send uplink data in the reserved symbol, so as to reduce collision between the sounding reference signal and the uplink data and improve system performance.

Drawings

FIG. 1A is a schematic of subframe and slot, and Mini-slot when the subcarrier spacing is 15 KHz;

FIG. 1B is a schematic of slots and Mini-slots when the subcarrier spacing is 30 KHz;

FIG. 1C is a schematic of slots and Mini-slots when the subcarrier spacing is 60 KHz;

fig. 2 is a schematic diagram of slots for transmitting SRS understood by terminal devices of different subcarrier spacings;

fig. 3 is a schematic view of an application scenario according to an embodiment of the present application;

fig. 4 is a schematic diagram of a communication method according to an embodiment of the present application;

fig. 5 is a schematic diagram of determining a symbol in the middle of a slot as a reserved symbol in the embodiment of the present application;

fig. 6 is a schematic diagram of reserved timeslot alignment determined by terminal equipment at different subcarrier intervals in this embodiment of the present application;

FIG. 7 is a schematic diagram of transmission of two different subcarrier spacings with frequency domain guard intervals in the frequency domain;

fig. 8 is a schematic diagram illustrating a reserved slot and a reserved symbol being indicated by a signaling group according to an embodiment of the present application;

fig. 9 is a schematic diagram illustrating a reserved timeslot and a reserved symbol indicated in a bitmap form by a signaling group according to an embodiment of the present application;

fig. 10 is a schematic diagram illustrating a reserved slot and a reserved symbol being indicated by a signaling group according to an embodiment of the present application;

fig. 11 is a schematic diagram of another communication method provided in the embodiments of the present application;

fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 16A-16B are schematic structural diagrams of a communication device according to an embodiment of the present application;

fig. 17 is a schematic diagram of another communication method provided in the embodiments of the present application;

fig. 18 is a schematic diagram of another communication method provided in the embodiments of the present application;

fig. 19 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 21 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 22 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 23 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 24 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 25 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 26 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) The terminal equipment: which may also be referred to as a terminal, includes devices that provide voice and/or data connectivity to a user and may include, for example, handheld devices having wireless connection capabilities or processing devices connected to wireless modems. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an Access Point (AP), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), or a user equipment (user device), etc. For example, mobile phones (or so-called "cellular" phones), computers with mobile terminals, portable, pocket, hand-held, computer-included or vehicle-mounted mobile devices, smart wearable devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), smart watches, smart helmets, smart glasses, smart bracelets, and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

2) A network device, e.g., including a base station (e.g., access point), may refer to a device in an access network that communicates over the air-interface, through one or more cells, with wireless terminal devices. The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The base station may also coordinate management of attributes for the air interface. For example, the base station may include an evolved Node B (NodeB, eNB, or e-NodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), or may also include a next generation Node B (gNB) in a 5G NR system, which is not limited in the embodiments of the present application.

3) In the LTE system, data transmission within one carrier uses a subcarrier spacing of 15 KHz. In the NR system, data transmission within one carrier may use various subcarrier spacings, with different subcarrier spacings corresponding to different system parameters (numerology). As shown in table 1, numerology includes various configurations, the numerology configuration is denoted by μ, and the numerology configuration may include a subcarrier spacing configuration and a Cyclic Prefix (CP) configuration, etc.

TABLE 1

μ	Δf＝2^μ·15[kHz]	Cyclic prefix
			0	15	Common (Normal)
1	30	Normal
			2	60	Normal, Extended (Extended)
3	120	Normal
			4	240	Normal
5	480	Normal

Where Δ f is the subcarrier spacing of the terminal device.

Currently, the NR system supports a total of 6 subcarrier spacing configurations, and supports different subcarrier spacing options in different carrier frequency bands, as shown in table 2.

TABLE 2

In the LTE system, a scheduling unit of data is a subframe, which includes 2 slots, and each slot includes 7 Orthogonal Frequency Division Multiplexing (OFDM) symbols. In the NR system, due to the introduction of a multi-subcarrier interval, a scheduling unit of data is defined as a slot of 14 Normal Cyclic Prefix (NCP) OFDM symbols or a slot of 12 Extended Cyclic Prefix (ECP) OFDM symbols, and 1 subframe corresponds to an absolute time length of 1 ms. In the embodiments of the present application, unless otherwise specified, "symbols" refer to OFDM symbols.

Please refer to table 3, which is an illustration of slot configuration (slot _ configuration) under different numerology configurations for a normal cyclic prefix, i.e., how many symbols a slot includes, how many slots a frame includes, and how many slots a subframe includes.

TABLE 3

For example, when μ ═ 0, one slot includes 14 symbols, one frame includes 10 slots, and one subframe includes 1 slot.

Please refer to table 4, which is an illustration of slot configuration under different numerology configurations, i.e., how many symbols a slot includes, how many slots a frame includes, and how many slots a subframe includes, for an extended cyclic prefix.

TABLE 4

For example, when μ ═ 2, one slot includes 12 symbols, one frame includes 40 slots, and one subframe includes 4 slots.

4) Multiple subcarrier spacings are supported in NR systems to accommodate different traffic demands. In the frequency domain, the calculation mode of the subcarrier spacing supported by the NR system is f_sc＝f₀*2^m. Wherein f is₀15kHz, m is an integer. In the time domain, provideSome time units are as follows, including:

■ subframes (subframes), 1 subframe being 1ms in length, comprising 14 OFDM symbols under numerology at 15kHz subcarrier spacing. Within 1 subframe, the symbol boundaries for various numerologies for subcarrier spacing above 15kHz and 15kHz are aligned. Unless otherwise specified, the "symbol" hereinafter refers to an OFDM symbol.

■ slots (slots), is one possible scheduling unit length of time. The 1 slot includes the y symbols under numerology currently used. An integer number of slots is included in the 1 subframe. For example, in the case where the subcarrier spacing is 60KHz or less, y is 7; when the subcarrier spacing is 60kHz or more, y is 14.

■ mini-slots (mini-slots), which are the minimum length of time for a scheduling unit. The 1 Mini-slot may comprise less OFDM symbols than the currently used y symbols under numerology.

Reference may be made to fig. 1A, 1B, and 1C, where fig. 1A is a schematic of subframe and slot, and Mini-slot when the subcarrier spacing is 15KHz, fig. 1B is a schematic of slot and Mini-slot when the subcarrier spacing is 30KHz, and fig. 1C is a schematic of slot and Mini-slot when the subcarrier spacing is 60 KHz.

4) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

Unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing between a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects.

The technical solution provided herein can be applied to a 5G NR system (hereinafter, referred to as NR system), or a next generation mobile communication system, or other similar communication systems.

Having described some of the concepts related to the embodiments of the present application, the technical background of the embodiments of the present application is described below.

In the LTE system, for a terminal device needing to transmit SRS, a base station can signal SRS subframe configuration (SRS-subframe config) and user-level signaling I through cell-level signaling_SRSAnd determining the subframe number used by the terminal equipment for transmitting the SRS. And the last symbol (the last two symbols for a special subframe in Time Division Duplex (TDD) mode) in the general configuration subframe may be used to transmit the SRS.

Cell level signaling SRS-subframe config may be used to indicate the subframe number in which the SRS transmission resource is determined to be contained in the cell, i.e., the terminal devices in the cell may know through SRS-subframe config which subframes SRS may be transmitted in the cell. SRS-subframe configuration can configure SRS subframe configuration period (configuration period) T_SFCAnd transmission offset (transmission offset) Δ_SFCAnd the configuration units are all subframes. Specifically, satisfy

May be used to transmit SRS, where n_sIs the slot number within a frame.

For example, in the TDD system, srs-subframe config is shown in Table 5.

TABLE 5

For example, if the value of srs-subframe config is 0, it means that the configuration index is 0, and T is_SFCIs 5, Δ_SFCIs {1}, indicating that the first subframe of every 5 subframes is available for transmitting SRS, then one frame is available for transmissionSubframes in which the SRS is transmitted are subframe 1 and subframe 6.

In the LTE system, in order to avoid collision between SRS transmission of the terminal device 1 and Physical Uplink Shared Channel (PUSCH) transmission of the terminal device 2, the terminal device may learn, through cell-level signaling SRS-subframe configuration, subframe numbers of SRS that may be transmitted by all terminal devices in a cell, and then all terminal devices in the cell do not transmit PUSCH at the last symbol in these subframes, so as to avoid collision between SRS and PUSCH.

User-level signalling I_SRSMay be used to indicate the subframe number used by one terminal device for transmitting SRS, which is of course also limited by the configuration of SRS-subframe config. I is_SRSThe configuration includes an SRS Transmission period (periodicity) T_SRSAnd subframe offset (subframe offset) T_offset。

In TDD systems, user-level signalling I_SRSThe configuration is shown in table 6.

TABLE 6

Specifically, when T is_SRSWhen the power is more than 2, the terminal equipment satisfies (10 n)_f+k_SRS-T_offset)modT_SRSTransmitting the SRS on a subframe of 0; when T is_SRSWhen 2, the terminal device is satisfying (k)_SRS-T_offset) The SRS is transmitted on a subframe at mod5 ═ 0. Wherein n is_fTo frame number, mod represents the modulo operation.

When the number of uplink pilot time slots (UpPTS) in the TDD special subframe is less than or equal to 2, k_SRSThe values of (A) are shown in Table 7.

TABLE 7

NR systems support several numerologies, in which, if the slot configuration SRS-subframe configuration of the SRS cell level signaling still takes subframe (1ms) as a configuration unit, then for example, a terminal device transmitting with a subcarrier spacing of 240KHz, in the fastest case, a transmission opportunity of SRS occurs once every 16 slots, so that the acquisition of channel information is too slow.

Furthermore, if the timeslot configuration SRS-subframe configuration of the SRS cell-level signaling uses timeslots as configuration units, since in the NR system, there may be multiple subcarrier intervals transmitted in one carrier, and terminal devices transmitting at different subcarrier intervals have inconsistent understanding of the duration of one timeslot, the SRS and PUSCH transmission collision problem of different terminal devices may occur. Referring to fig. 2, for terminal devices transmitting at subcarrier intervals of 15KHz, 30KHz, and 60KHz, respectively, cell-level signaling indicates that

slots

2,3, 6, and 7 in the cell are used for transmitting SRS, but for terminal devices transmitting at different subcarrier intervals, the positions of

slots

2,3, 6, and 7 are different, for example, slot 2 understood by terminal device at 15KHz actually coincides with the times of

slots

4 and 5 understood by terminal device at 30KHz, terminal device at 30KHz may transmit PUSCH at

slots

4 and 5 understood by terminal device at 30KHz, and terminal device at 15KHz may transmit SRS at slot 2 understood by terminal device at 15KHz, and then collision may occur between PUSCH and SRS.

In view of this, the technical solution provided in the embodiments of the present application can reduce the probability of collision between the SRS and the PUSCH.

The solution provided herein may be applied to NR systems, or next generation communication systems, or other possible communication systems.

An application scenario of the embodiment of the present application is described below, please refer to fig. 3, which is a schematic diagram of the application scenario. Fig. 3 includes a network device and a terminal device, where the network device may allocate uplink control channel resources to the terminal device, so that the terminal device may send response information to the network device through the allocated uplink control channel resources. The network device in fig. 3 is, for example, AN Access Network (AN) device, such as a base station. In this embodiment, since the scheme of the present application mainly relates to an access network device and a terminal device, a core network device is not shown in fig. 3. The access network device is, for example, a gNB in an NR system. In addition, there may be multiple terminal devices actually accessing the network device, and fig. 3 is an example of a terminal device.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

Referring to fig. 4, an embodiment of the present application provides a communication method, and in the following description, the method is applied to the application scenario shown in fig. 3 as an example. The flow of the method is described below.

And S41, the terminal equipment obtains the reference information. The reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment indicate a reserved time slot and a reserved symbol in the reserved time slot; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel;

s42, the terminal device determines the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal device or the system parameter of the terminal device.

S43, if the terminal device sends a sounding reference signal and/or a physical uplink control channel on the reserved symbol, the network device receives the sounding reference signal and/or the physical uplink control channel on the reserved symbol, or if the terminal device sends other information except for the physical uplink shared channel on the reserved symbol, the network device receives other information except for the physical uplink shared channel on the reserved symbol, or if the terminal device receives other information except for the physical downlink shared channel on the reserved symbol, the network device sends other information except for the physical downlink shared channel on the reserved symbol.

Wherein S403 is an optional step.

The reserved symbols are not used for transmitting the physical uplink shared channel and/or the physical downlink shared channel, and the reserved symbols are used for transmitting the sounding reference signal and/or the physical uplink control channel, which may be considered as corresponding schemes, for example, the reserved symbols are not used for transmitting the physical uplink shared channel and/or the physical downlink shared channel, and may include schemes that the reserved symbols are used for transmitting the sounding reference signal and/or the physical uplink control channel. In this embodiment of the present application, the reserved time slot and the reserved symbol may be at a cell level, for example, refer to the reserved time slot and the reserved symbol in a cell where the terminal device is located, that is, the terminal devices in the cell where the terminal device is located all use the reserved symbol to transmit the sounding reference signal and/or the physical uplink control channel, or the terminal devices in the cell where the terminal device is located all do not use the reserved symbol to transmit the physical uplink shared channel and/or the physical downlink shared channel; alternatively, the reserved time slot and the reserved symbol may also be user-level, that is, the terminal device transmits the sounding reference signal and/or the physical uplink control channel using the reserved symbol, or the terminal device does not transmit the physical uplink shared channel and/or the physical downlink shared channel using the reserved symbol.

In the embodiment of the present application, in order to solve the problem that terminal devices transmitting at different subcarrier intervals have inconsistent understanding on the duration of a slot, reference information is provided, where the reference information may include at least one of a length of a reference time unit, a reference system parameter, and a reference subcarrier interval, and the reference information is common to a cell, and all terminal devices and network devices in the cell may determine the duration of the slot by using the reference information, so that the probability of SRS and PUSCH collision due to the inconsistency on the duration of the slot may be reduced.

It should be noted, however, that it is preferable not to arbitrarily configure the reference information for one NR carrier. For example, for a frequency band of 1-6 GHz, 15/30/60KHz terminal equipment transmission may be possible on one NR carrier. If the length of the time unit (denoted T herein) is to be referred to_URepresents, or may be T_UUnderstood as reference time cell itself) is configured for 0.5ms, srs-SlotConfig is configured for configuration 8 in table 8. Then as shown in fig. 5, the terminal device at 30/60KHz can know the reserved time slot by the judgment criterion to be described later herein, even if 15KThe Hz terminal device can know the reserved time slot according to some judgment criteria, and it can be seen that, on one hand, in order to align with the reserved time slot determined by the 60KHz terminal device, the reserved symbol in the reserved time slot determined by the 15KHz terminal device includes a symbol at the middle position of the time slot 1, and the symbols in the middle of the time slot generally have better channel estimation performance, and if the terminal device determines the reserved symbol, the terminal device will not transmit PUSCH or demodulation reference signal (DMRS) on the symbols any more, which may cause performance loss. On the other hand, as shown in fig. 5, symbols that can be used to transmit SRS in each slot may be inconsistent, resulting in complicated symbol-level configuration.

The configuration of the reference information is important. Several ways of obtaining the reference information by the terminal device are described below.

The first mode and the signaling mode.

For example, the network device may send a first notification signaling to the terminal device, where the first notification signaling is used to indicate the length of the reference time unit, e.g., T_UOr is understood to indicate T_UThe terminal device receives the first notification signaling from the network device, and the terminal device can determine T according to the first notification signaling_ULength of (d). E.g. T_ULength of maximum time scheduling unit supported by communication system in which the terminal device is located, or T_UAnd the length of the maximum time scheduling unit supported by the carrier where the working frequency band of the terminal equipment is located. For example, the communication system in which the terminal device is located supports both a subcarrier interval of 15KHz and a subcarrier interval of 30KHz, the length of the time scheduling unit supported by the communication system includes a length of 1ms of the time scheduling unit supported by the subcarrier interval of 15KHz and a length of 0.5ms of the time scheduling unit supported by the subcarrier interval of 30KHz, and then the length of the maximum time scheduling unit supported by the communication system is 1 ms. Or the length of the maximum time scheduling unit supported by the communication system in which the terminal device is located may also be defined by the network device, which is not limited in the embodiment of the present application. Or for example, the carrier on which the operating band of the terminal device is located supports 15 altogetherThe sub-carrier interval of KHz and the sub-carrier interval of 30KHz, the length of the time scheduling unit supported by the carrier includes the length of the time scheduling unit supported by the sub-carrier interval of 15KHz, which is 1ms, and the length of the time scheduling unit supported by the sub-carrier interval of 30KHz, which is 0.5ms, and the length of the maximum time scheduling unit supported by the carrier is 1 ms. Or the length of the maximum time scheduling unit supported by the carrier may also be defined by the network device, which is not limited in the embodiment of the present application.

E.g. T_UIn units of milliseconds (ms), T_UThe length values of (a) belong to, but are not limited to, the set {1ms,0.5ms,0.25ms,0.125ms,0.0625ms,0.0375ms }.

Alternatively, the network device may send second notification signaling to the terminal device, which may indicate a configuration of reference numerology (herein in μ ″)_RDenotes, in particular,. mu._RMay represent an index of reference numerology), the terminal device receives a second notification signaling from the network device, from which the terminal device may determine μ_R。μ_RBelongs to the

set

0,1,2,3,4,5, e.g. μ indicated by the second notification signaling_RMinimum index of numerology supported for communication system in which the terminal device is located, or mu indicated by second notification signaling_RA minimum index of numerology supported for a carrier on which an operating frequency band of the terminal device is located. For example, the communication system in which the terminal device is located supports both a subcarrier spacing of 15KHz and a subcarrier spacing of 30KHz, and as can be seen from table 1, if the index of numerology corresponding to the subcarrier spacing of 15KHz is 0, and the index of numerology corresponding to the subcarrier spacing of 30KHz is 1, then the minimum index of numerology supported by the communication system is 0. Or the minimum index of numerology supported by the communication system may also be defined by the network device itself, and the embodiments of the present application are not limited thereto. Or for example, the carrier where the operating frequency band of the terminal device is located supports both a subcarrier spacing of 15KHz and a subcarrier spacing of 30KHz, and as can be seen from table 1, if the index of numerology corresponding to the subcarrier spacing of 15KHz is 0, and the index of numerology corresponding to the subcarrier spacing of 30KHz is 1, then the numerology supported by the carrier is thatThe minimum index is 0. Or the minimum index of numerology supported by the carrier may also be defined by the network device itself, and the embodiments of the present application are not limited thereto.

Or, the network device may send a fourth notification signaling to the terminal device, where the fourth notification signaling may indicate the reference subcarrier interval, and the terminal device receives the fourth notification signaling from the network device, and the terminal device may determine the reference subcarrier interval according to the fourth notification signaling. For example, the subcarrier spacing indicated by the fourth notification signaling is the minimum subcarrier spacing supported by the communication system in which the terminal device is located. For example, the communication system in which the terminal device is located supports both a subcarrier spacing of 15KHz and a subcarrier spacing of 30KHz, and the minimum subcarrier spacing supported by the communication system is 15 KHz. Or the minimum subcarrier spacing supported by the communication system may also be defined by the network device itself, which is not limited in the embodiments of the present application. Or for example, the carrier in which the operating frequency band of the terminal device is located supports a subcarrier interval of 15KHz and a subcarrier interval of 30KHz, and then the minimum subcarrier interval supported by the carrier is 15 KHz. Or the minimum subcarrier spacing supported by the carrier may also be defined by the network device itself, which is not limited in the embodiment of the present application.

The subcarrier spacing supported by the communication system in which the terminal device is located and the subcarrier spacing supported by the carrier in which the working frequency band of the terminal device is located are not the same concept. For example, the frequency band of the carrier where the operating frequency band of the terminal device is located belongs to 1 to 6GHz, it can be known from table 2 that the subcarrier interval supported by the carrier includes 15/30/60KHz, and the communication systems operating in the carrier may have respective frequency bands, but different communication systems do not necessarily support 15/30/60KHz, for example, 15KHz may be supported by some communication systems, and 30/60KHz may be supported by some communication systems, and therefore, the minimum subcarrier interval supported by the communication system where the terminal device is located may be different from the minimum subcarrier interval supported by the carrier where the operating frequency band of the terminal device is located. Similarly, taking the frequency band of the carrier where the operating frequency band of the terminal device is located as 1-6 GHz as an example, the minimum subcarrier interval supported by the carrier is 15KHz, and for example, the subcarrier interval supported by a certain communication system operating on the carrier is 30/60KHz, so the minimum subcarrier interval supported by the communication system is 30 KHz.

And a second mode and an implicit determination mode.

For example, the terminal device determines T according to the frequency recessiveness of the carrier where the working frequency band of the terminal device is located_ULength of (d). For example. According to Table 2, for a frequency band less than 6GHz, the minimum subcarrier spacing is 15KHz, then T_UThe length of (1ms), and for a frequency band of 24-52.6 GHz, the minimum subcarrier spacing is 60KHz, then T_UIs 0.25 ms. The premise here is that the time scheduling unit corresponding to the minimum subcarrier interval supported by the carrier where the operating frequency band of the terminal device is located is determined to be T_U. For example, the length of the time scheduling unit corresponding to the subcarrier interval of 15KHz is 1ms, and the length of the time scheduling unit corresponding to the subcarrier interval of 30KHz is 0.5 ms.

Or the terminal equipment implicitly determines mu according to the frequency band of the carrier where the working frequency band of the terminal equipment is located, the mapping relation between the frequency band and the subcarrier interval and the mapping relation between the subcarrier interval and the system parameter_RThe value of (a). For example, according to the mapping relationship between the frequency band and the subcarrier spacing shown in table 2, for the frequency band less than 6GHz, the minimum subcarrier spacing is 15KHz, and then according to the mapping relationship between the subcarrier spacing and the system parameter shown in table 3, μ can be known_RFor the 24-52.6 GHz band, the minimum subcarrier spacing is 60KHz, and then according to Table 3, it can be known that_R2. It is assumed here that the index of numerology corresponding to the minimum subcarrier spacing supported by the carrier where the operating frequency band of the terminal device is located is determined to be μ_R。

For example, the terminal device implicitly determines the reference subcarrier spacing according to the frequency band of the carrier where the working frequency band of the terminal device is located and the mapping relationship between the frequency band and the subcarrier spacing. For example. According to the mapping relationship between the frequency band and the subcarrier spacing shown in table 2, for the frequency band less than 6GHz, the minimum subcarrier spacing is 15KHz, and for the frequency band of 24-52.6 GHz, the minimum subcarrier spacing is 60 KHz. The premise here is that the minimum subcarrier spacing supported by the carrier where the operating frequency band of the terminal device is located is determined as the reference subcarrier spacing.

The manner of determining the reference information introduced above is only an example, and the embodiments of the present application are not limited.

Determining reserved slots and reserved symbols using SRS configuration period T in addition to reference information and subcarrier spacing or numerology of the terminal device_SCAnd transmission offset Δ of SRS_SC. Therefore, before S42, the network device may send cell-level signaling, since the NR system is configured in units of time slots, and thus the cell-level signaling may be referred to as srs-SlotConfig. For example, srs-SlotConfig is shown in table 8, and in the embodiment of the present application, srs-SlotConfig includes at least one of table 8.

TABLE 8

For example, the value of SRS-SlotConfig is 1001, which represents the configuration of SRS-SlotConfig is 9, and the corresponding SRS configuration period T_SCIs 10T_UTransmission offset Δ of SRS_SCIs {0}, and represents every 10T _U0 th T in (1)_UBy using_{In that}Transmitting SRS, or understood as every 10T _U0 th T in (1)_UFor reserved T_UIf T is_UIs a time slot, then every 10T _U0 th T in (1)_UIs a reserved time slot.

As an example, for a terminal device with a subcarrier spacing Δ f, a slot number is determined that satisfies both of the following conditions:

(1)

(2)

wherein the content of the first and second substances,

indicating the determined slot number, af indicates the subcarrier spacing of the terminal device,

denotes the number of slots included in one subframe when numerology is mu,

denotes rounding down, T_URepresents T_ULength of (d).

Is the number of slots within a sub-frame,

is the numbering of the time slots within a frame, in effect

And

the same time slot is indicated, but the numbering is different.

Time slot number satisfying above two conditions simultaneously

The corresponding time slot is the reserved time slot. In this context, the same parameters are defined identically, and therefore, the same parameters will not be explained in more detail hereinafter.

Please refer to fig. 6, with T_UFor example, the length of 1, the terminal device of 15KHz may determine the reserved time slot to be

time slots

2,3, 7, and 8, and the terminal device of 30KHz may determine the reserved time slot to be

time slot

2,3, 7, and 8The terminal device of

slot

5, 7, 15, 17, 60KHz may determine the reserved slots to be

slots

11, 15, 31, 35. For example, the end time of slot 2 determined by the terminal device at 15KHz, the end time of slot 5 determined by the terminal device at 30KHz, and the end time of slot 11 determined by the terminal device at 60KHz are the same, that is, the reserved slots determined by the terminal devices at different numerologies are aligned, so that SRS and PUSCH are prevented from being transmitted by different terminal devices at the same time, and the collision probability between SRS and PUSCH is reduced.

In the previous example, the terminal device is through T_UDetermines the reserved time slot, i.e. the reference information comprises T_UAs another example, the terminal device may also determine the reserved time slot through numerology configuration, that is, the reference information includes reference numerology.

For example, the terminal device obtains a configuration of reference numerology, denoted μ, through signaling sent by the network device_R，μ_RThe value of (1) belongs to the set {0,1,2,3,4,5}, and the terminal device can correspondingly determine T_SCAnd Δ_SCIs configured by the unit T_ULength of (e.g. T)_UHas a length of 1/2^μm_s。

For a terminal device with a subcarrier spacing Δ f, determining a time slot number that satisfies the following two conditions:

(1)

alternatively, the first and second electrodes may be,

(2)

wherein the content of the first and second substances,

indicating the determined slot number, af indicating the subcarrier spacing of the terminal equipment, mu indicating the numerology of the terminal equipmentThe configuration of the device is as follows,

denotes the number of slots one subframe includes when the configuration of numerology is μ,

indicating a rounding down.

This example may also refer to fig. 6. Therefore, no matter which example determines the reserved time slots, the reserved time slots determined by different numerology terminal devices are aligned, so that different terminal devices are prevented from respectively transmitting the SRS and the PUSCH at the same time, and the probability of collision between the SRS and the PUSCH is reduced.

As described above, the reserved slots are determined, and a reserved slot may include a plurality of symbols, and if the collision probability between the SRS and the PUSCH is to be reduced, it is necessary to determine which symbols are used to transmit the SRS in the reserved slot.

In the NR system, the terminal device can transmit on a plurality of consecutive symbols in one slot, and the number of symbols that can be reserved for SRS transmission in one reserved slot should also be configurable. In a reserved slot, in order to not affect the transmission of the PUSCH, the DMRS and the like as much as possible, the symbols reserved for SRS transmission are preferably the last few symbols.

Since data transmission with various subcarrier intervals is supported in one carrier of the NR system, and the subcarrier intervals used for SRS transmission are consistent with the subcarrier intervals for uplink data transmission, SRS transmission with various subcarrier intervals may exist in one NR carrier. For example, when there may be SRS transmission of a terminal device at 15KHz and a terminal device at 30KHz in one NR carrier, SRS transmission of a terminal device at 15KHz and SRS transmission of a terminal device at 30KHz cannot use a Frequency Division Multiplexing (FDM) multiplexing method, because transmission of two different subcarrier intervals requires a frequency domain guard interval (guard band) in a frequency domain, which can refer to fig. 7, such that a network device cannot obtain channel information of some frequency bands, and a limitation is brought to a bandwidth size of SRS transmission. Therefore, the SRS transmission with different subcarrier intervals can only use a Time Division Multiplexing (TDM) multiplexing method. In a slot where there is SRS reserved resource, it needs to indicate which symbols are reserved for SRS transmission.

If the signaling indication of the cell level is used, the terminal devices transmitting with different subcarrier intervals do not have consistent understanding of the time-frequency resources occupied by the symbols. Therefore, the symbol level indication of the SRS reserved resource needs to know the number of symbols reserved for SRS transmission in each slot, the number of the symbols, and the subcarrier spacing of the symbols, and several indication modes are described below.

In the first implementation, the network device sends numerology corresponding to the symbol or subcarrier spacing corresponding to the symbol to the terminal device, and then the terminal device receives numerology corresponding to the symbol or subcarrier spacing corresponding to the symbol. And the network equipment sends the number of the reserved symbols included in the reserved time slot to the terminal equipment, and then the terminal equipment receives the number of the reserved symbols included in each reserved time slot. Wherein, if the reserved time slot includes a plurality of reserved symbols, the network device may transmit the number of reserved symbols included in each reserved time slot to the terminal device. The terminal device may determine the position of the reserved symbol included in the reserved slot according to the numerology corresponding to the symbol or the subcarrier interval corresponding to the symbol, and the number of reserved symbols included in each reserved slot. The numerology corresponding to the symbol or the subcarrier spacing corresponding to the symbol means that the network device needs to indicate the number of symbols under the uniform numerology or subcarrier spacing, otherwise, the length of the time unit corresponding to different numerology or subcarrier spacing is different, which may cause the understanding of different terminal devices to be inconsistent.

Specifically, the network device sends signaling S at the cell level_μ/S_SCSAnd S_N. Wherein S is_μ/S_SCSMeans S_μOr S_SCSI.e. network device or transmission S_μOr sending S_SCS。S_μFor indicating symbol correspondence numerology, S_SCSFor indicating symbol corresponding sub-carriersPartition, S_NIndicating the number of reserved symbols in each reserved slot. The network device may send S first_μ/S_SCSPost-transmission S_NOr the network device may send S first_NPost-transmission S_μ/S_SCSOr the network devices may send S simultaneously_μ/S_SCSAnd S_N。S_μ/S_SCSAs shown in tables 9 to 11, in the present example, S_μ/S_SCSThe indication method (2) includes at least one of the plurality of indication methods shown in tables 9 to 11.

TABLE 9

Watch 10

TABLE 11

E.g., 24-52.6 GHz band, S_μWhen the value of (1) is 00, the configuration of numerology is 2, S_SCSWhen the value of (1) is 00, the subcarrier spacing is 60 KHz.

In an implementation, the signal can be transmitted through S_μ/S_SCSThe value of (a) indicates the numerology configuration or subcarrier spacing, which is more flexible.

In the second implementation manner, the network device sends the number of reserved symbols included in each reserved time slot to the terminal device, and then the terminal device receives the number of reserved symbols included in each reserved time slot. The terminal device may determine the position of the reservation symbol included in the reservation slot according to the reference numerology or the reference subcarrier spacing or the length of the reference time unit and the number of the reservation symbols included in each reservation slot. Wherein the terminal device may obtain the reference numerology or the length of the reference subcarrier spacing or the reference time unit, which has been introduced previously. The second implementation manner includes different specific implementation procedures, which are described below.

The implementation process a, the network device sends S to the terminal device_N，S_NIndicating the number of reserved symbols in each reserved slot. At this time, the numerology corresponding to the symbol is reference numerology, for example, the smallest numerology currently supported by the communication system in which the terminal device is located, that is, the smallest index of the numerology, or the subcarrier spacing corresponding to the symbol is reference subcarrier spacing, for example, the smallest subcarrier spacing currently supported by the communication system in which the terminal device is located.

The implementation process b is that the network equipment sends S to the terminal equipment_N，S_NIndicating the number of reserved symbols in each reserved slot. At this time, the numerology corresponding to the symbol is reference numerology, for example, the smallest numerology currently supported by the carrier where the operating frequency band of the terminal device is located, that is, the smallest index of the numerology, or the subcarrier spacing corresponding to the symbol is reference subcarrier spacing, for example, the smallest subcarrier spacing currently supported by the carrier where the operating frequency band of the terminal device is located.

In implementation two, the terminal device may directly use the reference numerology as the numerology corresponding to the symbol, or use the reference subcarrier spacing as the subcarrier spacing corresponding to the symbol, and the network device does not need to additionally send the numerology corresponding to the symbol or the subcarrier spacing corresponding to the symbol, which can save transmission resources.

Third, the network device sends S to the terminal device_N，S_NThe number of reserved symbols included in the reserved time slot, the terminal device receives the number of reserved symbols included in each reserved time slot, and the network device sends symbol offset information S to the terminal device_offsetThe terminal device receives the symbol offset information, the symbolOffset information S_offsetFor indicating the starting symbol position of successive symbols. The terminal device may determine the position of the reserved symbol included in the reserved slot according to numerology corresponding to the symbol or subcarrier spacing corresponding to the symbol, the number of reserved symbols included in each reserved slot, and the symbol offset information.

The terminal device may obtain numerology corresponding to the symbol or subcarrier spacing corresponding to the symbol according to the first implementation manner described above, or the terminal device may determine that the reference numerology is numerology corresponding to the symbol or determine that the reference subcarrier spacing is subcarrier spacing corresponding to the symbol according to the second implementation manner described above.

According to the first, second or third implementation manners, the position of the reserved symbol in the reserved time slot can be determined. For example, if the number of reserved symbols in a reserved time slot is X and the subcarrier spacing corresponding to the symbol is Y, for a terminal device with a subcarrier spacing of Z, if the terminal device is based on the first implementation or the second implementation, the time slot determined by the foregoing is used as the time slot

The continuous (XZ/Y) symbols which are forward from the last symbol of the time slot are reserved symbols, so that the SRS can be placed in the last symbols of the time slot as much as possible for transmission, the symbols in the middle of the time slot are reserved for transmitting information such as PUSCH or DMRS, and the system performance is improved. For example, if a cell-level configuration includes 4 reserved symbols in a reserved slot, and the subcarrier spacing of the symbols is 15KHz, then for a terminal device transmitting with 60KHz subcarrier spacing, the last symbol in the reserved slot is beginning to be preceded by 16 consecutive symbols as the reserved symbols. Or, based on implementation three, the time slot determined by the foregoing

S of (1)_offsetContinuous (XZ/Y) symbols before the beginning of each symbol are reserved symbols, and the method is flexible and is beneficial to flexibly deploying the SRS transmission position.

In this embodiment of the application, the terminal device may also need to send SRS, and then a manner is provided below, through I_SRSAnd determining a time slot which can be used for sending the SRS by the terminal equipment.

Please refer to table 12, which is I_SRSIn the examples of the present application, I_SRSIncludes at least one of those shown in table 12.

TABLE 12

SRS Configuration Index I_SRS	SRS Periodicity T_SRS(slot)	SRS slot Offset T _offset
			0–1	2	I_SRS
2–6	5	I_SRS–2
			7–16	10	I_SRS–7
17–36	20	I_SRS–17
			37–76	40	I_SRS–37
77–156	80	I_SRS–77
			157–316	160	I_SRS–157
317–636	320	I_SRS–317
			637–1023	reserved	reserved

In LTE systems, within a subframe in which an SRS can be transmitted, typically only the last symbol can be used to transmit the SRS. In the NR system, however, a plurality of symbols may be configured within one slot to transmit the SRS. Thus T in NR systems_SRSAnd T_offsetThe configuration unit of (a) should be a slot as shown in table 12.

For terminal equipment needing SRS transmission, cell-level signaling SRS-SlotConfig and user-level signaling I_SRSSlots in which SRS can be transmitted can be determined and user-level signaling is required to indicate the symbols in these slots in which SRS can be transmitted.

For a terminal device that needs to transmit an SRS, it may transmit the SRS in a slot in which the SRS can be transmitted. For example, the symbol number in one slot is {0,1,2,3,4,5,6,7,8,9,10,11,12,13} for ECP, or {0,1,2,3,4,5,6,7,8,9,10,11} for NCP.

The symbol that can be used for transmitting the SRS can be determined by two signaling, one is user-level signaling S_nFor example, using 2-bit transmission, it may be used to indicate the number of symbols capable of transmitting SRS; second, user level signaling S_offsetFor example, using 4-bit transmission to indicate the initial position of the first symbol capable of transmitting SRS, S for the slot of NCP_offsetHas a value range of [0,13 ]]For ECP time slots, S_offsetHas a value range of [0,11]。

Then the terminal device can be in the slot for the non-repeated transmission mode of the SRS

S of (1)_offsetS starting with one symbol_nTransmitting SRS on successive symbols, i.e. time slots

S of (1)_offsetS starting with one symbol_nThe consecutive symbols are symbols in which the SRS can be transmitted. For the SRS repeated transmission mode, when the repetition multiple is K, the terminal equipment can be in the time slot

Middle S_offsetKS of successive symbol starts_nTransmitting SRS over one symbol, i.e. time slot

Middle S_offsetKS of successive symbol starts_nEach symbol is a symbol capable of transmitting an SRS.

S_nThe relation between the number of symbols capable of transmitting SRS and S can refer to Table 13, in the embodiment of the present application_nThe relationship with the number of symbols over which the SRS can be transmitted may include at least one of table 13:

watch 13

S_n	Number of symbols capable of transmitting SRS
		00	1
01	2
		10	4
11	Reserved

Obtaining T at a terminal device as previously described_UOr mu_RThe terminal device may determine the reserved time slot and the reserved symbol in the manner as described above. If the reserved resources are indicated by the signaling at the slot level and the symbol level in this way, the reserved resources of the system may be wasted. For example, there are terminal devices of 15KHz, 30KHz and 60KHz simultaneously in the system, if the symbol level is configured with 4 symbols of 15KHz, then for the terminal device of 60KHz in the system, more than one timeslot of resources can continuously appear and cannot be used for uplink data transmission. In fact, some time slots are used for transmitting SRS to 60KHz terminal equipment, only 4 reserved symbols of 60KHz may be needed to be reserved, and in all cases, resources are reserved according to the granularity of 15KHz, and PUSCH transmission resources are sacrificed.

Therefore, in the embodiments of the present application, additional methods are provided for determining the reserved slots and the reserved symbols, which are described below.

Determining method one, using a signaling group with size M to indicate time-frequency resources reserved for SRS transmission, where M is a positive integer, where M is 10For example, the signaling group includes at least one indication information, i is an index of the indication information in the signaling group, and a value range of i is [0, M-1 ]]. The indication information included in the signaling group is used for indicating a reserved time slot and a reserved symbol in the reserved time slot. Each indication in the signaling group may correspond to a time slot. The signaling group includes an indication of S₀,S₁,S₂,S₃,S₄,S₅,S₆,S₇,S₈,S₉}. The terminal device may determine a reserved slot and a reserved symbol in the reserved slot according to the ith indication information in the signaling group, the reference information, the number of indication information included in the signaling group, and the subcarrier spacing of the terminal device or the numerology of the terminal device.

The following is presented in several specific ways.

a. Each indication information included in the signaling group includes at least one bit, and 4 bits are taken as an example in the mode a. When S is_iWhen the value belongs to the second value range, the condition is satisfied

The time slot of (1) does not contain reserved symbols; when S is_iDetermining the slave time slot when belonging to the first value range

S before the last symbol of_i×Δf/Δf_REach symbol is a reservation symbol. Here S_iAt least one bit included in the ith indication information is converted into a decimal value.

And the first value range and the second value range have no intersection. The first value range includes, for example, [0,5 ]]、[0,11]And [0, 13)]For example for a terminal device of NCP with subcarrier spacing Δ f, S_iThe first value range is, for example, [0,13 ]]For a terminal device of ECP with subcarrier spacing Δ f, S_iThe first value range is, for example, [0,11 ]]. The second value range includes, for example, [6,7 ]]、[14,15]And [12,15 ]]At least one of (1). E.g. for subcarriersTerminal equipment of NCP with interval delta f, S_iThe second value range is, for example, [14,15 ]]For a terminal device of ECP with subcarrier spacing Δ f, S_iThe second value range is, for example, [12,15 ]]。

b. Each indication information included in the signaling group includes at least one bit, and 4 bits are taken as an example in the scheme b. For terminal device with numerology μ, when S is_iWhen the value belongs to the second value range, the condition is satisfied

The time slot of (1) does not contain reserved symbols; when S is_iWhen the value belongs to the first value range, the slave time slot

S before the last symbol of_i×μ/μ_REach symbol is a reservation symbol.

Referring to fig. 8, a box in which a slash is drawn in fig. 8 indicates a reserved slot, and a dotted box indicates a reserved symbol in the reserved slot. E.g. according to the formula in mode a or mode b, then signalling S₀The number of the obtained reserved symbols is 15, taking fig. 8 as an example, if the 0 th indication information signaling S is sent₀，S₀Corresponding to slot 0, it means that there are 15 reserved symbols in slot 0 of 15 KHz. While the symbols included in a slot are actually less than 15, thus indicating that no symbols are reserved in slot 0. As another example, if the 2 nd indication information S is sent₂Then S is₂The number of symbols obtained is 1, taking FIG. 8 as an example, S₂Corresponding to slot 2, it means that there are 1 reserved symbols in slot 2 of 15 KHz.

In this way, the reserved time slot and the reserved symbol can be determined by using signaling occupying 4 bits, and different subcarrier intervals can be determined respectively, taking fig. 8 as an example, a terminal device with 60KHz subcarrier interval does not need to sacrifice

time slots

8,9, and 10 as the reserved time slot, only needs to use time slot 11 as the reserved time slot, and

time slots

8,9, and 10 can be continuously used for transmitting PUSCH, etc., so that transmission resources can be effectively utilized, and system performance is improved.

c. SignalingEach indication information included in the group includes at least one bit, and the at least one bit constitutes a bit map group (bitmap) of 14 bits or 12 bits. For a terminal device that is NCP with a subcarrier spacing of Δ f, the requirements for satisfying

If the k-th bit is 1, the number is [ k × Δ f/Δ f ] in at least one bit included in the ith indication information_R,(k+1)×Δf/Δf_R-1]The symbol of (a) is a reserved symbol.

d. Each indication information included in the signaling group includes at least one bit, and the at least one bit constitutes a biatmap of 14 bits or 12 bits. For terminal device with numerology μ, for satisfy

If the k-th bit is 1, the number is [ k × μ/Δ μ ] in at least one bit included in the ith indication information_R,(k+1)×μ/Δμ_R-1]The symbol of (a) is a reserved symbol.

Wherein the value of k starts from 0.

Referring to fig. 9, a box in which a slash is drawn in fig. 9 indicates a reserved slot, and a dotted box indicates a reserved symbol in the slot. For example, according to the formula in the mode c or the mode d, if the 0 th indication information S is sent₀Then there are no reserved symbols. As another example, if it is the 2 nd indication information S₂Then there is a reserved symbol in slot 2 at 15 KHz.

Compared with the two indication modes of a and b, the indication methods of c and d are more flexible for indication at the symbol level, and the indication of the reserved symbols does not necessarily need to be continuous.

Determining a second method, using two signaling groups with a size of M to indicate time-frequency resources reserved for SRS transmission, where M is a positive integer, where M is 10 as an example, where a first signaling group includes at least one indication information, a second signaling group includes at least one offset information, the indication information in the first signaling group, the offset information in the second signaling group, and a timeslot, which are arranged in a one-to-one mannerCorrespondingly, i is the index of the indication information in the first signaling group or the index of the offset information in the second signaling group, and the value range of i is [0, M-1 ]]. The indication information included in the first signaling group and the offset information included in the second signaling group are used for indicating a reserved time slot and a reserved symbol in the reserved time slot. The first signaling group includes indication information such as S₀,S₁,S₂,S₃,S₄,S₅,S₆,S₇,S₈,S₉The second signaling group includes offset information such as w₀,w₁,w₂,w₃,w₄,w₅,w₆,w₇,w₈,w₉}. The terminal device may determine a reserved slot and a reserved symbol in the reserved slot according to the ith indication information in the first signaling group, the ith offset information in the second signaling group, the reference information, the M, and the subcarrier spacing of the terminal device or the numerology of the terminal device.

The following description is divided into two specific modes of e and f.

e. Each indication information included in the first signaling group includes at least one bit, and in the mode e, 4 bits are taken as an example, each offset information included in the second signaling group also includes at least one bit, the number of bits included in the indication information and the number of bits included in the offset information may be the same or different, and in the mode e, the offset information includes 4 bits as an example. When S is_iWhen the value belongs to the second value range, the condition is satisfied

W of_i×Δf/Δf_RS after the symbol starts to go backward or forward_i×Δf/Δf_REach symbol is a reservation symbol.

f. Each indication information included in the first signaling group includes at least one bit, for example 4 bits in the mode e,each offset information included in the second signaling group also includes at least one bit, and the number of bits included in the indication information may be the same as or different from the number of bits included in the offset information, and the manner e takes the example that the offset information includes 4 bits. For terminal device with numerology μ, when S is_iWhen the value belongs to the second value range, the condition is satisfied

W of_i×μ/μ_RS after the symbol starts to go backward or forward_i×μ/μ_REach symbol is a reservation symbol.

By this way, continuous symbols can be indicated, and signaling overhead is saved. And the reserved symbols do not necessarily start from the last symbol, so that the method is flexible.

The first value range and the second value range are introduced as above, and are not described in detail.

Referring to fig. 10, a box in which diagonal lines are drawn in fig. 10 indicates a reserved slot, and a dotted box indicates a reserved symbol in the slot. For example, according to the formula in the mode e or the mode f, the 0 th indication information S ₀0 th offset information w₀The number of the obtained symbols is 15, taking fig. 10 as an example, which means that 15 symbols in the 15KHz slot 0 are reserved symbols. While the symbols included in a slot are actually less than 15, thus indicating that no symbols are reserved in slot 0. As another example, the 2 nd indication information S₂The number of symbols obtained is 1,2 nd offset information w₂The number of the obtained symbols is 2, and taking fig. 10 as an example, 2 symbols in the 15KHz slot 2 are reserved symbols. In this way, the offset of the reserved symbol in the reserved slot can be indicated, and the SRS can be transmitted without necessarily occupying the last symbol of the slot, such as slot 2 of 15KHz in fig. 10, where the reserved symbol is the middle symbol of slot 2. It can be seen that this approach is flexible.

In the embodiment of the present application, the reserved symbol as described above has a function including at least one of:

a. the reserved symbols do not map PUSCH, and SRS can be transmitted;

b. the reserved symbols do not map PUSCH, and SRS and/or PUCCH can be transmitted;

c. the reserved symbols do not map the PUSCH and the Physical Downlink Shared Channel (PDSCH), and do not assume any reception and transmission on these reserved resources. I.e. these reservation symbols may not be used and may be left for possible later extensions.

That is, the reserved symbol determined in the embodiment of the present application may have multiple uses, and the embodiment of the present application is not limited to a specific use.

In the embodiment of the present application, the network device may also determine the reserved slot and the reserved symbol in the same manner. After the terminal device determines the reserved time slot and the reserved symbol, the terminal device may send a sounding reference signal and/or a physical uplink control channel on the reserved symbol, and then the network device receives the sounding reference signal and/or the physical uplink control channel on the reserved symbol, or the terminal device sends other information except the physical uplink shared channel on the reserved symbol, and then the network device receives other information except the physical uplink shared channel on the reserved symbol, or the terminal device receives other information except the physical downlink shared channel on the reserved symbol, and then the network device sends other information except the physical downlink shared channel on the reserved symbol. Through the technical scheme provided by the embodiment of the application, the collision between the SRS and the PUSCH can be effectively reduced, and the system performance is improved.

The embodiment shown in fig. 4 describes a method that may indicate time-frequency resources reserved for SRS transmission in the system. Another embodiment, reuse I, is described below_SRSTo configure a slot that cannot be used as a reserved slot. The system may allow multiple sets of parameters to be configured to indicate SRS transmission time-frequency resources reserved for different transmission periods.

Referring to fig. 11, in the following description, an example of applying the method to the application scenario shown in fig. 3 is provided in the embodiment of the present application. The flow of the method is described below.

S1101, the network equipment sends a third notification signaling to the terminal equipment, and then the terminal equipment receives the third notification signaling from the network equipment;

and S1102, the terminal equipment determines the reserved time slot according to the third notification signaling. The reserved time slot is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel;

s1103, if the terminal device sends a sounding reference signal and/or a physical uplink control channel on the reserved time slot, the network device receives the sounding reference signal and/or the physical uplink control channel on the reserved time slot, or if the terminal device sends other information except for the physical uplink shared channel on the reserved time slot, the network device receives other information except for the physical uplink shared channel on the reserved time slot, or if the terminal device receives other information except for the physical downlink shared channel on the reserved time slot, the network device sends other information except for the physical downlink shared channel on the reserved time slot.

Wherein S1103 is an optional step.

Likewise, the reserved symbols are not used for transmitting the physical uplink shared channel and/or the physical downlink shared channel, and the reserved symbols are used for transmitting the sounding reference signal and/or the physical uplink control channel, which may be considered as corresponding schemes, for example, the reserved symbols are not used for transmitting the physical uplink shared channel and/or the physical downlink shared channel, and may include schemes that the reserved symbols are used for transmitting the sounding reference signal and/or the physical uplink control channel. In this embodiment, the reserved time slot may be at a cell level, for example, a reserved time slot in a cell where the terminal device is located, that is, the terminal devices in the cell where the terminal device is located all use the reserved time slot to transmit the sounding reference signal and/or the physical uplink control channel, or the terminal devices in the cell where the terminal device is located all do not use the reserved time slot to transmit the physical uplink shared channel and/or the physical downlink shared channel; alternatively, the reserved time slot may be user-level, that is, the terminal device uses the reserved time slot to transmit the sounding reference signal and/or the physical uplink control channel, or the terminal device does not use the reserved time slot to transmit the physical uplink shared channel and/or the physical downlink shared channel.

In an embodiment of the present application, the third notification signaling includes at least one of the following configurations:

the transmission period of the sounding reference signal is 4 time slots;

the transmission period of the sounding reference signal is 8 time slots;

the transmission period of the sounding reference signal is 640 time slots;

the transmission period of the sounding reference signal is 1280 time slots;

the transmission period of the sounding reference signal is a reserved number of slots.

As an example, the third notification signaling may include at least one of the following configurations:

Specifically, at least one configuration described above may be shown with reference to table 14, that is, the third notification signaling in the embodiment of the present application may include at least one configuration in table 14:

TABLE 14

SRS Configuration Index I_SRS	SRS Periodicity T_SRS(slot)	SRS slot Offset T_offset
			637–640	4	I_SRS–637
641–648	8	I_SRS–641
			649–1288	640	I_SRS–650
1289-2568	1280	I_SRS–1289
			2569-4095	reserved	reserved

Further, the third notification signaling may include at least one configuration in table 15, where table 15 includes table 14:

watch 15

SRS Configuration Index I_SRS	SRS Periodicity T_SRS(slot)	SRS slot Offset T _offset
			0–1	2	I_SRS
2–6	5	I_SRS–2
			7–16	10	I_SRS–7
17–36	20	I_SRS–17
			37–76	40	I_SRS–37
77–156	80	I_SRS–77
			157–316	160	I_SRS–157
317–636	320	I_SRS–317
			637–640	4	I_SRS–637
641–648	8	I_SRS–641
			649–1288	640	I_SRS–650
1289-2568	1280	I_SRS–1289
			2569-4095	reserved	reserved

If I in LTE system is reused_SRSAs in table 6 above, to be simultaneously used in the systemFor example, terminal devices of 15KHz, 30KHz and 60KHz exist, if a terminal device of 15KHz configures 2 slots to transmit SRS, a terminal device of 30KHz should configure 4 slots as reserved slots, and a terminal device of 60KHz should configure 8 slots as reserved slots. But there is no choice of 4 slots or 6 slots in table 6. Therefore, according to the configuration of Table 6, I cannot be passed_SRSTo avoid collision of 15KHz terminal device SRS and 30/60KHz terminal device PUSCH transmissions.

Thus, the examples of the present application provide tables 14 and 15, and a new choice, I, is introduced in table 14 or table 15_SRSOccupying 10 bits, and taking the value of 0-636 to configure a reserved time slot; i is_SRSOccupying 12 bits, with values of 0-2567, can be used to configure slots that cannot be reserved.

Taking the terminal devices of 15KHz, 30KHz and 60KHz in the system as an example, if the terminal device of 15KHz configures 2 slots to transmit SRS, the terminal device of 30KHz should configure 4 slots as reserved slots, and the terminal device of 60KHz should configure 8 slots as reserved slots, both configurations can be obtained in table 14 or table 15. Therefore, according to the configuration of table 14 or table 15, I can be effectively passed_SRSTo avoid collision of 15KHz terminal device SRS and 30/60KHz terminal device PUSCH transmissions.

a. the reserved symbols do not map PUSCH, and SRS can be transmitted;

The following describes the apparatus provided in the embodiments of the present application with reference to the drawings.

Fig. 12 shows a schematic structural diagram of a terminal device 1200. The terminal device 1200 may implement the functionality of the terminal device referred to above. The terminal device 1200 may be the terminal device described above, or may be a chip provided in the terminal device described above. The terminal device 1200 may include a processor 1201. Optionally, the terminal device may further include a transceiver 1202. Among other things, the processor 1201 may be used to perform S41 and S42 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein. The transceiver 1202 may be configured to perform S43 in the embodiment illustrated in fig. 4, and/or other processes for supporting the techniques described herein.

For example, the processor 1201 is configured to obtain reference information, where the reference information and a subcarrier interval of the terminal apparatus or a system parameter of the terminal apparatus indicate a reserved slot and a reserved symbol in the reserved slot; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and determining the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Fig. 13 shows a schematic structural diagram of a network device 1300. The network device 1300 may implement the functionality of the network devices referred to above. The network device 1300 may be the network device described above, or may be a chip provided in the network device described above. The network device 1300 may include a processor 1301. Optionally, the network device may also include a transceiver 1302. Processor 1301 may be configured to obtain reference information, determine the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and a subcarrier spacing of the terminal device or a system parameter of the terminal device, and/or other processes for supporting the techniques described herein. Transceiver 1302 may be used to perform S43 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described herein.

For example, the processor 1301 is configured to obtain reference information, where the reference information indicates a reserved time slot and a reserved symbol in the reserved time slot together with a subcarrier spacing of a terminal device or a system parameter of the terminal device; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and determining the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

Fig. 14 shows a schematic structure diagram of a terminal device 1400. The terminal device 1400 may implement the functionality of the terminal device referred to above. The terminal device 1400 may be the terminal device described above, or may be a chip provided in the terminal device described above. The terminal device 1400 may include a processor 1401 and a transceiver 1402. Processor 1401 may be used, among other things, to perform S1102 in the embodiment illustrated in fig. 11, and/or other processes for supporting the techniques described herein. The transceiver 1402 may be used to perform S1101 and S1103 in the embodiment shown in fig. 11, and/or other processes for supporting the techniques described herein.

For example, the transceiver 1402 is configured to receive a third notification signaling from a network device; a processor 1401, configured to determine a reserved time slot according to the third notification signaling, where the reserved time slot is used to transmit a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used to transmit a physical uplink shared channel and/or a physical downlink shared channel; the third notification signaling comprises at least one of the following configurations:

the transmission period of the sounding reference signal is 4 time slots;

the transmission period of the sounding reference signal is 8 time slots;

the transmission period of the sounding reference signal is 640 time slots;

the transmission period of the sounding reference signal is 1280 time slots;

Fig. 15 shows a schematic structural diagram of a network device 1500. The network device 1500 may implement the functionality of the network devices referred to above. The network device 1500 may be the network device described above, or may be a chip disposed in the network device described above. The network device 1500 may include a processor 1501 and a transceiver 1502. Processor 1501 may be used, among other things, to generate third notification signaling and/or other processes for supporting the techniques described herein. The transceiver 1502 may be configured to perform S1101 and S1103 in the embodiment shown in fig. 11, and/or other processes for supporting the techniques described herein.

For example, the processor 1501 is configured to generate a third notification signaling, where the third notification signaling is used to indicate a reserved time slot, where the reserved time slot is used to transmit a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used to transmit a physical uplink shared channel and/or a physical downlink shared channel; the third notification signaling comprises at least one of the following configurations:

the transmission period of the sounding reference signal is 4 time slots;

the transmission period of the sounding reference signal is 8 time slots;

the transmission period of the sounding reference signal is 640 time slots;

the transmission period of the sounding reference signal is 1280 time slots;

the transmission period of the sounding reference signal is a reserved number of time slots;

a transceiver 1502 configured to send the third notification signaling to a terminal device.

In a simple embodiment, it is conceivable for those skilled in the art that terminal device 1200, network device 1300, terminal device 1400 or network device 1500 may also be implemented by the structure of communication apparatus 1600 shown in fig. 16A. The communication apparatus 1600 may implement the functions of the network device or the terminal device referred to above. The communication device 1600 may include a processor 1601. Where the communications apparatus 1600 is used to implement the functionality of the terminal device in the embodiment shown in fig. 4, the processor 1601 may be used to perform S41 and S42 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described herein. When the communications apparatus 1600 is configured to implement the functionality of a network device in the embodiment shown in fig. 4, the processor 1601 may be configured to obtain reference information, determine the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier spacing of the terminal device or system parameters of the terminal device, and/or other processes for supporting the techniques described herein. When the communication apparatus 1600 is used to implement the functions of the terminal device in the embodiment shown in fig. 11, the processor 1601 may be used to execute S1102 in the embodiment shown in fig. 11, and/or other processes for supporting the techniques described herein. When the communications apparatus 1600 is used to implement the functionality of a network device in the embodiment illustrated in fig. 11, the processor 1601 may be used to generate third notification signaling and/or other processes for supporting the techniques described herein.

The communication device 1600 may be implemented by a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Micro Controller Unit (MCU), or a programmable controller (PLD) or other integrated chips, and the communication device 1600 may be disposed in the network device or the terminal device according to the embodiment of the present application, so that the network device or the terminal device implements the communication method according to the embodiment of the present application.

In an alternative implementation, the communications device 1600 may further include a memory 1602, as shown in fig. 16B, wherein the memory 1602 is configured to store computer programs or instructions, and the processor 1601 is configured to decode and execute the computer programs or instructions. It will be appreciated that these computer programs or instructions may comprise the functional programs of the network devices or terminal devices described above. When the functional program of the network device is decoded and executed by the processor 1601, the network device can be enabled to implement the functions of the network device in the communication method according to the embodiment of the present application. When the functional program of the terminal device is decoded and executed by the processor 1601, the terminal device can be made to implement the functions of the terminal device in the communication method of the embodiment of the present application.

In another alternative implementation, the functional programs of these network devices or terminal devices are stored in a memory external to communications apparatus 1600. When the functional program of the network device is decoded and executed by the processor 1601, part or all of the functional program of the network device is temporarily stored in the memory 1602. When the functional program of the terminal device is decoded and executed by the processor 1601, a part or all of the content of the functional program of the terminal device is temporarily stored in the memory 1602.

In an alternative implementation, the functional programs of these network devices or terminal devices are located in a memory 1602 stored inside the communication apparatus 1600. When the memory 1602 inside the communication apparatus 1600 stores the function program of the network device, the communication apparatus 1600 can be provided in the network device according to the embodiment of the present application. When the memory 1602 inside the communication apparatus 1600 stores the function program of the terminal device, the communication apparatus 1600 can be provided in the terminal device of the embodiment of the present application.

In yet another alternative implementation, some of the contents of the functional programs of these network devices are stored in a memory external to the communication apparatus 1600, and other parts of the contents of the functional programs of these network devices are stored in a memory 1602 internal to the communication apparatus 1600. Alternatively, part of the contents of the function programs of these terminal devices are stored in a memory external to the communication apparatus 1600, and the other part of the contents of the function programs of these terminal devices are stored in the memory 1602 inside the communication apparatus 1600.

In the embodiment of the present application, terminal device 1200, network device 1300, terminal device 1400, network device 1500, and communication apparatus 1600 may be presented in a form of dividing each function module according to each function, or may be presented in a form of dividing each function module in an integrated manner. As used herein, a "module" may refer to an ASIC, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other components that provide the described functionality.

In addition, the terminal device 1200 provided by the embodiment shown in fig. 12 may also be implemented in other forms. The terminal device for example comprises a processing module. Optionally, the terminal device may further include a transceiver module. For example, the processing module may be implemented by the processor 1201, and the transceiver module may be implemented by the transceiver 1202. Among other things, the processing module may be used to perform S41 and S42 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S43 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to obtain reference information, where the reference information and a subcarrier interval of the terminal device or a system parameter of the terminal device indicate a reserved time slot and a reserved symbol in the reserved time slot; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and determining the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

The embodiment shown in fig. 13 provides a network device 1300 that can also be implemented in other forms. For example, the network device includes a processing module. Optionally, the network device may further include a transceiver module. For example, the processing module may be implemented by the processor 1301 and the transceiver module may be implemented by the transceiver 1302. Wherein the processing module may be configured to obtain reference information, determine the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and a subcarrier spacing of the terminal device or a system parameter of the terminal device, and/or support other processes for the techniques described herein. The transceiver module may be used to perform S43 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to obtain reference information, where the reference information indicates a reserved time slot and a reserved symbol in the reserved time slot together with a subcarrier interval of a terminal device or a system parameter of the terminal device; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; and determining the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

The embodiment shown in fig. 14 provides a terminal device 1400 which can be implemented in other forms. The terminal device comprises, for example, a processing module and a transceiver module. For example, the processing means may be embodied by the processor 1401 and the transceiver means may be embodied by the transceiver 1402. Wherein the processing module may be configured to perform S1102 in the embodiment shown in fig. 11, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S1101 and S1103 in the embodiment shown in fig. 11, and/or other processes for supporting the techniques described herein.

For example, the transceiver module is configured to receive a third notification signaling from the network device; a processing module, configured to determine a reserved time slot according to the third notification signaling, where the reserved time slot is used to transmit a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used to transmit a physical uplink shared channel and/or a physical downlink shared channel; the third notification signaling comprises at least one of the following configurations:

the transmission period of the sounding reference signal is 4 time slots;

the transmission period of the sounding reference signal is 8 time slots;

the transmission period of the sounding reference signal is 640 time slots;

the transmission period of the sounding reference signal is 1280 time slots;

The embodiment shown in fig. 15 provides a network device 1500 that may also be implemented in other forms. For example, the network device includes a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1501 and the transceiver module may be implemented by the transceiver 1502. Among other things, the processing module can be utilized to generate third notification signaling, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S1101 and S1103 in the embodiment shown in fig. 11, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to generate a third notification signaling, where the third notification signaling is used to indicate a reserved time slot, where the reserved time slot is used to transmit a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used to transmit a physical uplink shared channel and/or a physical downlink shared channel; the third notification signaling comprises at least one of the following configurations:

the transmission period of the sounding reference signal is 4 time slots;

the transmission period of the sounding reference signal is 8 time slots;

the transmission period of the sounding reference signal is 640 time slots;

the transmission period of the sounding reference signal is 1280 time slots;

and the transceiver module is used for sending the third notification signaling to the terminal equipment.

Since the terminal device 1200, the network device 1300, the terminal device 1400, the network device 1500, and the communication apparatus 1600 provided in the embodiment of the present application can be used to execute the method provided in the embodiment shown in fig. 4 or the embodiment shown in fig. 11, the technical effect obtained by the method can refer to the above method embodiment, and will not be described again here.

In the uplink communication process, the network device may configure the terminal device to transmit the SRS. The SRS is used to measure an uplink channel. The network device performs uplink channel measurement based on the SRS sent by the terminal device to obtain Channel State Information (CSI) of the uplink channel, so as to facilitate scheduling of uplink resources. When the uplink and downlink channels have reciprocity, the network device may also obtain the downlink CSI by measuring the SRS, that is, first obtain the uplink CSI, and then determine the downlink CSI according to the channel reciprocity.

A terminal device supporting 1 transmit antenna 2 receive antenna (1T2R) transmits SRS on different antennas at different times, and this SRS transmission method is called SRS antenna switching or antenna selection. In this case, uplink transmission of the terminal device can only be performed by using one antenna or one port at the same time, while downlink reception can be performed by using 2 antennas at the same time, so that the network device cannot obtain a channel of the downlink 2 receiving antenna based on an SRS transmitted on a single antenna in a scenario where an uplink channel and a downlink channel have reciprocity. In order to obtain the channels of all downlink antennas, the terminal device must transmit the SRS at different times on multiple antennas, that is, perform SRS transmission by switching SRS antennas.

In LTE systems, SRS antenna switching is applicable to the transmission of periodic SRS signals, when the frequency hopping function is not enabled, i.e. configuration b_hop≥B_SRS. Wherein b is_hopFrequency hopping bandwidth configured for higher layer signaling, B_SRSWhen the transmission bandwidth is greater than or equal to the frequency hopping bandwidth, the SRS does not hop frequency. At this time, the identifier of the antenna used for sending the SRS and the identifier n of the SRS transmission time_SRSCan be expressed as:

a(n_SRS)＝n_SRSmod2

wherein n is_SRSAccording to at least one of the frame number, the subframe number, the time slot number, the symbol number of SRS resource and the period of SRS where the current SRS is positioned, or n_SRSIndicates the number of SRS transmissions during a period of time. E.g. n_SRSSubtracting 1 from the number of times or the number of times of the uplink reference signal transmission, or n_SRSThe SRS time domain position in the cycle period of one frame or one frame number is counted. E.g. n in LTE_SRSIs defined as:

wherein N is_SPIs the number of downlink to uplink switching in one frame, n_fIs the frame number, n_sIs the time slot number, T, within a frame_SRSFor the period of SRS, T_offsetDetermined according to the symbol position in the special subframe and the number of SRS symbols, T_{offset_max}Is T_offsetIs measured. It can be seen that n in this calculation formula_SRSFor the SR of this transmissionAnd S is counted in all positions meeting the SRS period within the period of 0-1023 of one frame number.

When frequency hopping is enabled, i.e. b_hop<B_SRSThen there is

Wherein

And K is the total hop number of frequency hopping, namely the number of times of sending the SRS used for measuring all the configured SRS bandwidths after one time of frequency hopping is completed.

In the LTE system, the above method supports antenna switching in the periodic SRS transmission of 1T 2R. In a subsequent communication technology system (for example, a 5G system), more antennas need to be supported for transceiving, and the existing LTE antenna switching technology cannot be applied. How to solve the antenna selection mode supporting more antennas for transceiving becomes a problem to be solved.

In addition, in order to rapidly acquire a downlink channel, the next generation mobile communication system may further support antenna switching in aperiodic SRS transmission. In the prior communication system, the aperiodic SRS transmission is triggered by configuring the time-frequency position of the SRS through high-layer signaling and by Downlink Control Information (DCI). In NR systems, aperiodic transmission of SRS may also be triggered by DCI. In the periodic SRS transmission, the antenna used by the terminal equipment for transmitting the SRS is according to the time parameter n of the SRS transmission_SRSCertainly, in the next generation mobile communication system, the aperiodic SRS may not configure the SRS period, and thus may not calculate n_SRS. Furthermore, even if the aperiodic SRS configures periodic parameters, the network device must transmit on all antennas according to a specific n_SRSThe time-to-transmit DCI triggers SRS transmission, which limits scheduling. In the following, a further embodiment of the SRS configuration method according to the present application will be described with reference to fig. 17:

s1701, a terminal device receives at least two SRS resources configured by a network device, where the number of ports of each SRS resource is 1, each SRS resource is associated with at least two antennas, and antennas corresponding to each SRS resource are different. The association here may be a correspondence.

In one embodiment, a network device configures 2 SRS resources for the terminal device, and a scenario with 4 antennas is taken as an example, each SRS resource may have 1 port, and each SRS resource corresponds to 2 antennas, that is, one SRS resource transmits SRS at 1 port by using 2 antennas in turn; or the SRS may have 2 ports corresponding to 2 antennas, that is, 1 antenna is used to transmit the SRS in 1 antenna port, and then another antenna is used to transmit the SRS in another antenna port. Here, SRS resource 0 corresponds to antenna 0 and antenna 1, and SRS resource 1 corresponds to antenna 2 and antenna 3. It should be understood that the SRS resource may correspond to different antennas, and the SRS resource 0 may correspond to the antenna 0 and the antenna 2, and the SRS resource 1 corresponds to the antenna 1 and the antenna 3. In an embodiment, 0,1,2, and 3 of the

antennas

0,1,2, and 3 are index values of the antennas, respectively, and the number of the resource may be one index value, or another number, or even a certain determined time-frequency position for sending the SRS without a number. In one embodiment, the terminal may configure antenna 0 and antenna 1 corresponding to the smaller resource number, and antenna 2 and antenna 3 corresponding to the larger resource number. In another embodiment, the terminal may configure a corresponding antenna set 0 with a smaller resource number and a corresponding antenna set 1 with a larger resource number, where the antenna set 0 includes a plurality of antennas and the antenna set 1 includes another plurality of antennas. And the antenna of the antenna set 0 transmits in the corresponding resource set according to the determined rule, and the antenna of the antenna set 1 transmits in the corresponding resource set according to the determined rule. Similar or other predefined correspondence may also apply in scenarios with more antennas or more SRS resources.

Optionally, the network device configures at least 2 SRS resources, and the correspondence between the SRS resources and the antennas may be configured by the network device through a higher layer signaling, for example, through an RRC signaling or an MAC CE signaling. Optionally, the at least 2 SRS resources may belong to the same SRS resource group. At this time, the network device may configure the SRS resource group for SRS antenna switching or for antenna selection through RRC signaling or MAC CE signaling.

And S1702, in the process of sending the SRS by the terminal equipment in each SRS resource, switching and sending between antennas corresponding to each SRS resource. Taking an example that SRS resource 0 corresponds to antenna 0 and antenna 1, and SRS resource 1 corresponds to antenna 2 and antenna 3, the terminal device sends an SRS signal in the process of switching and sending by antenna 0 and antenna 1 on resource 0, and the terminal device sends an SRS signal in the process of switching and sending by antenna 2 and antenna 3 on resource 1. Optionally, the antenna switching of 1T2R may refer to SRS antenna switching rules in LTE.

In the following, a further embodiment of the SRS configuration method according to the present application will be described with reference to fig. 18:

s1801: the terminal equipment receives SRS resource configuration information of the network equipment, wherein the SRS resource configuration information is used for configuring SRS resources. The SRS configuration information is used for configuring at least one of frequency domain resources and sequences of SRS resources. It should be understood that the sequence may be used as a code domain resource, such as a spreading code or cyclic shift cs. The SRS resource may have a correspondence with a transmitting antenna of the terminal device, where the correspondence may be a correspondence between each SRS resource and an antenna, and the correspondence may be predefined, or the correspondence between the SRS resource and an antenna may be configured by the network device through a higher layer signaling, such as an RRC signaling or an MAC CE signaling. And the antennas used by the SRS transmitted on the SRS resource are part or all of the antennas corresponding to the SRS resource.

In an embodiment, the resource corresponding relationship may be directly configured with the number of SRS resources, and optionally, the terminal device determines the corresponding relationship between the SRS resources and the terminal device transmitting antennas according to the number of the SRS resources and other parameters such as the number or the number of antennas. The SRS resources may be one or more, wherein each SRS resource may be associated with one or more antennas.

The following steps are exemplified by SRS antenna switching of 2T4R, which may be extended to SRS antenna switching of 1T2R and SRS antenna switching of a transmitting antenna b receiving antenna, where a < b, a may divide b by b.

Optionally, the network device may configure 1 SRS resource, and may also configure 2 SRS resources, where the 2 SRS resources may belong to the same SRS resource group or different SRS resource groups. If 1 SRS resource is configured, the SRS resource corresponds to all antennas, i.e., 4 antennas. If 2 SRS resources are configured, the 2 SRS resources respectively correspond to 2 antennas, and the antennas corresponding to the two SRS resources are different, for example, 2 antennas corresponding to the same SRS resource may perform uplink transmission simultaneously.

Optionally, for the case of configuring 2 SRS resources. For example, SRS resource 0 corresponds to antenna 0 and antenna 1, SRS resource 1 corresponds to antenna 2 and antenna 3; or SRS resource 0 corresponds to antenna 0 and antenna 2, and SRS resource 1 corresponds to antenna 1 and antenna 3; it can be understood that, when the terminal device is configured with other SRS resources, the number of the SRS resource in the above example may also be another number, and the correspondence between the 2 SRS resources and the antennas may be determined according to the relative relationship between the SRS resource numbers of the terminal device and the antennas, for example, an SRS resource with a small SRS resource number corresponds to an antenna {0,1}, and an SRS resource with a large SRS resource number corresponds to an antenna {2,3 }; or the SRS resource with small SRS resource number corresponds to the antenna {0,2}, and the SRS resource with large SRS resource number corresponds to the antenna {1,3 }; or the SRS resource with small SRS resource number corresponds to the antenna {2,3}, and the SRS resource with large SRS resource number corresponds to the antenna {0,1 }; or the SRS resource with small SRS resource number corresponds to the antenna {1,3}, the SRS resource with large SRS resource number corresponds to the antenna {0,2}, or other predefined corresponding relations. Optionally, if the network device further configures time resources of SRS resources, the corresponding relationship between the SRS resources and the transmitting antennas of the terminal device may be determined according to the sequence of the time resources of the SRS resources, for example, an SRS resource whose time resource is relatively front corresponds to an antenna {0,1}, and an SRS resource whose time resource is relatively rear corresponds to an antenna {2,3 }; or the SRS resource with the time resource relatively front corresponds to the antenna {0,2}, and the SRS resource with the time resource relatively rear corresponds to the antenna {1,3 }; or the SRS resource with the time resource relatively front corresponds to the antenna {2,3}, and the SRS resource with the time resource relatively rear corresponds to the antenna {0,1 }; or the SRS resource which is relatively far forward corresponds to the antenna {1,3}, and the SRS resource which is relatively far backward corresponds to the antenna {0,2}. optionally, 2 antennas corresponding to the SRS resource may be an antenna group, that is, one SRS resource corresponds to the antenna group 1, and the other SRS resource corresponds to the antenna group 2.

S1802: the terminal device determines antenna selection enablement. The terminal device determines the antenna enable, which may be a process of receiving enable signaling, for example, the terminal device receives a higher layer signaling or a physical layer signaling sent by the base station. In one embodiment, the enabling signaling is RRC signaling or the enabling signaling is MAC CE signaling. The antenna selection enabling means that the function of antenna selection is turned on, for example, the function may specifically be to write a certain register or read a value of a certain field according to the signaling, and it should be understood that this step may be before the step 1801 of receiving SRS resources configured by the network device, or before a step of triggering SRS transmission subsequently. In another embodiment, the enabling of antenna selection may be antenna switching or antenna selection, or may be antenna switching or antenna selection of a certain SRS resource or SRS resource group configured to the terminal device, where the SRS resource group includes one or more SRS resources. In one embodiment, when the terminal device determines that the antenna selection is enabled, the user device determines the corresponding relationship between the SRS resource and the antenna according to the method in step 1801.

It should be appreciated that the antenna selection enable may not be configured by the network device, i.e., step 1802 is optional. For example, the network device configures 2 SRS resources, and the terminal device determines a correspondence between each SRS resource in the 2 SRS resources and an antenna according to predefined information or configuration of the network device, it is not necessary to configure antenna selection enable. The terminal equipment uses the corresponding antennas to transmit the SRS on the two SRS resources, and then antenna selection or antenna switching is realized.

S1803: the terminal equipment receives a trigger instruction sent by the network equipment, wherein the trigger instruction is used for triggering SRS transmission. In one embodiment, the trigger indication is downlink control information dci (downlink control information).

Taking the trigger indication as DCI as an example, as an optional step, before sending DCI, the network device further sends a configuration signaling to the terminal device, where the configuration signaling is used to configure a relationship between a time resource for transmitting the DCI and at least one last SRS transmission on the SRS resource, for example, the terminal device determines that a time unit for transmitting DCI is time unit n, and the terminal device may determine that the time unit for at least one last SRS transmission on the SRS resource is time unit n + k1 according to the configuration signaling, where a value of k1 is determined according to the configuration signaling. The time unit may be one slot or one symbol or one subframe. This indication may be an implicit indication or may be an indication that is displayed, and the configuration signaling may directly indicate the value of k1 or may be implicitly signaled according to channel status or other parameters. The transmission of the configuration signaling and the sequence of the above steps 1801 to 1804 are not limited.

In another embodiment, the relationship between the time resource for transmitting the DCI and the time resource for at least one SRS transmission on the SRS resource may be predefined, for example, the time unit for transmitting the DCI is time unit n, and the time unit for at least one SRS transmission on the SRS resource is time unit n + k1, where the value of k1 is predefined, for example, k1 is 0 or k1 is 1.

In another embodiment, the value of k1 may be determined according to the period information and the period offset information of the SRS resource and the time resource for transmitting the DCI, for example, the SRS is transmitted on a resource available for SRS transmission on the SRS resource after the time resource for transmitting the DCI, wherein the resource available for SRS transmission is determined according to the period information and the period offset information of the SRS resource.

S1804: and the terminal equipment determines the first time resource for sending the SRS according to the time resource for receiving the DCI and the relation between the time resource for transmitting the DCI and the time resource for last SRS transmission of the SRS resource. The antenna used for transmitting the SRS on the first time resource may be predefined, for example, for the case that the base station only configures 1 SRS resource, the SRS on the first time resource is transmitted using 2 antennas, for example, the antennas {0,1} or {0,2} or {2,3} or {1,3 }. For example, when the base station has 2 SRS resources, for convenience of description, SRS resource a and SRS resource B are referred to. For the above SRS resource a corresponding to 2 antennas, such as antenna 0 and antenna 1, and SRS resource B corresponding to two other antennas, such as antenna 2 and antenna 3, it may be defined that the SRS on SRS resource a is transmitted on the first time resource or that the SRS on SRS resource B is transmitted on the first time resource.

After the terminal device transmits the SRS on the first time resource, the terminal device further transmits the SRS on the second time resource, for example, for the case that the base station only configures 1 SRS resource, the SRS on the second time resource is transmitted by using 2 antennas other than the antenna used for the SRS transmission on the first time resource, for example, the antenna {2,3} or {1,3} or {0,1} or {0,2}. For another example, for a case that the base station configures 2 SRS resources, it is noted that the SRS resource a and the SRS resource B correspond to 2 antennas, such as antenna 0 and antenna 1, for the SRS resource a, and the SRS resource B corresponds to two other antennas, such as antenna 2 and antenna 3, and it can be defined that the SRS of the SRS resource transmitted on the second time resource is different from the SRS of the SRS resource transmitted on the first time resource, for example, the SRS of the SRS resource a is transmitted on the first time resource, and the SRS of the SRS resource B is transmitted on the second time resource; or the SRS on SRS resource B is transmitted on the first time resource, the SRS on SRS resource a is transmitted on the second time resource. Optionally, the correspondence between the first time resource and the SRS resource, and the second time resource, may also be configured by the network device. Optionally, the antennas used for sending the SRS on the first time resource and the second time resource are determined according to the SRS resources on the first time resource or the second time resource and the corresponding relationship between the SRS resources and the antennas.

In another embodiment, the antennas used for SRS transmission on different time resources can be obtained according to a predefined table lookup, for example, table 16:

TABLE 16

It should be understood that table 16 is an embodiment, and in an embodiment, the transmitting antenna may not be limited to use the antenna configuration in table 16, for example, for the scenario that SRS resource 0 corresponds to antenna 0 and antenna 1, and SRS resource 1 corresponds to antenna 2 and antenna 3, the scenario of case one or case two in table 16 may also be used.

Optionally, when the network device configures 1 SRS resource in S1081, the resources occupied by SRS transmission in the first time resource and the second time resource both correspond to the 1 SRS resource.

Optionally, when the network device configures 2 SRS resources in S1801, the resource occupied by SRS transmission in the first time resource corresponds to one SRS resource of the 2 SRS resources, and the resource occupied by SRS transmission in the second time resource corresponds to another SRS resource of the 2 SRS resources. The correspondence may be predefined or base station configured. The predefined correspondence may be determined according to the number or the size of the number of the SRS resource, for example, when a < B, the SRS resource a is transmitted on the first time resource, and the SRS resource B is transmitted on the second time resource; or, when a > B, SRS resource a is transmitted on the first time resource and SRS resource B is transmitted on the second time resource. Alternatively, the predefined correspondence may also be determined according to a temporal precedence relationship of SRS resources.

Optionally, the configuration signaling in S1803 may further indicate a relationship between a plurality of time resources of the DCI and the SRS resource, for example, a time interval relationship between the time resources configuring the DCI and the second time resource, where if the time resource of the DCI belongs to time unit n and the second time resource belongs to time unit n + k2, k2 may be configured by the base station. Optionally, k2 may also be predefined. The time unit is a time slot or a subframe or a symbol.

It should be understood that, in the S1803, the multiple SRS resources are configured, and the multiple SRS resources may further include multiple time resources, for example, a resource occupied by SRS transmission in the first time resource corresponds to one SRS resource a of the multiple SRS resources, a resource occupied by SRS transmission in the second time resource corresponds to one SRS resource B of the multiple SRS resources, a resource occupied by SRS transmission in the third time resource corresponds to one SRS resource C of the multiple SRS resources, and so on.

As an embodiment, the second time resource may be determined according to the first time resource, for example, if the time unit in which the first time resource is located is n + k1, then the time unit in which the second time resource is located is n + k1+ Δ, where Δ is a predefined or network device configured value, for example, the predefined Δ ═ 1. The time unit may be a symbol, a slot, or a subframe. Optionally, when the time unit is a symbol, Δ >1, thereby ensuring that sufficient antenna switching time is reserved. Optionally, when the time unit is a symbol, if the symbol n + k1+ Δ and the symbols after the symbol in the slot of the first time unit are not enough to transmit the SRS, the last symbol of the second time unit is the last symbol of the slot where the first time unit is located, or the second time unit is transmitted in the next slot.

Optionally, the second time resource may be further determined according to the time resource of the DCI, for example, if the time unit in which the time resource of the DCI is located is n, the time unit in which the second time resource is located is n + k2, where k2 is a predefined or network device configured value, for example, predefined k2 is 1. Wherein k2> k 1. The time unit may be a symbol, a slot, or a subframe. Optionally, when the time unit is a symbol, Δ >1 is defined as k2-k1, so as to ensure that sufficient antenna switching time is reserved.

Optionally, in order to adapt to antenna switching capabilities of different terminal devices, before this step, the terminal device may send first reporting information to the network device, where the first reporting information is used to report the antenna switching capability of the terminal device, for example, the antenna switching capability may be used to represent a time for the terminal device to switch an antenna or a maximum time for switching an antenna, may be direct reporting time, may also be a number of reported symbols or a number of time slots or other quantized values, or may also be implicitly notified of the reporting time or a quantized value thereof through coding, a mapping relationship, or other parameters. Thus, the network device can determine the value of delta according to the antenna switching capability reported by the terminal device. For example, the terminal device reports the time of T us required for antenna switching of the terminal device through the first report information, or reports that S symbols are required for antenna switching of the terminal device, or reports that the terminal device supports or does not support antenna switching in a time slot. It should be noted that the sending, by the terminal device, the first reporting information to the network device for reporting the antenna switching capability of the terminal device may be performed independently from other steps in this embodiment.

Optionally, the frequency domain resources occupied by the SRS transmitted in the first time unit and the SRS transmitted in the second time unit are the same. For example, the terminal device may determine that the frequency domain resources of the SRS transmitted in the second time unit are the same according to the frequency domain resources occupied by the SRS transmitted in the first time resource.

Optionally, in this embodiment, when the first time resource or the second time resource includes a plurality of time units, for example, when the SRS resource includes a plurality of symbols, a time unit in which the first time resource or the second time resource is located may be understood as a certain time unit of the first time resource or the second time resource, for example, a 1 st time unit of the first time resource or the second time resource, or a last 1 time unit of the first time resource or the second time resource.

It should be understood that a time unit in the present application may be a slot, or a symbol, or a subframe, or a predefined unit of time.

For the SRS antenna switching of 2T4R, the scheme may be further extended to a scenario where a is greater than 1, and at this time, it is necessary to send the SRS for b/a times, that is, it is necessary to send the SRS from the first time resource to the ceil (b/a) or floor (b/a) or b/a time resource, where ceil () is an upward rounding operation, and floor () is a downward rounding operation.

In the embodiment of the application, one DCI is used for triggering SRS transmission for multiple times, different antennas are adopted for SRS transmission each time, the number of transmission is equal to the number of SRS transmission times required by completing antenna switching once, and therefore an SRS transmission process is completed on all antennas after one DCI triggering.

Fig. 19 shows another terminal apparatus embodiment of the present application, which includes a receiving unit 1901, configured to receive at least two SRS resources configured by a network device, where the number of ports of each SRS resource is 1, each SRS resource is associated with at least two antennas, and antennas corresponding to each SRS resource are different. The receiving unit 1901 may further implement other various implementations of S1701 in the embodiment shown in fig. 17.

The terminal apparatus further includes a sending unit 1902, configured to perform switching sending between antennas corresponding to each SRS resource in a process of sending the SRS by each SRS resource. The sending unit 1902 is further configured to implement other various embodiments of step 1701. In an embodiment not shown in the figure, the terminal device may further comprise a processing unit for processing the received respective information and performing necessary processing before sending the information, for example determining parameters that need to be notified to the terminal device in the respective steps.

Fig. 20 shows another embodiment of a terminal apparatus of the present application, where the terminal apparatus may include a receiving unit 2001, configured to receive SRS resource configuration information of a network device, where the SRS resource configuration information is used to configure SRS resources. The receiving unit 2001 may further implement other various embodiments of S1801 in the embodiment shown in fig. 18.

A processing unit 2002 for determining antenna selection enablement. In one embodiment, the receiving unit 2001 is further configured to receive an enable signaling. The processing unit 2002 may further implement various other embodiments of S1802 in conjunction with the receiving unit 2001.

The receiving unit 2001 is further configured to implement the step of receiving a trigger instruction sent by the network device, where the trigger instruction is used to trigger transmission of the SRS. The receiving unit 2001 may further implement other various implementations of step 1803 in the embodiment shown in fig. 18.

A sending unit 2003, configured to determine a first time resource for sending the SRS according to the time resource for receiving the DCI and a relationship between the time resource for transmitting the DCI and the time resource for transmitting the SRS. The sending unit 2003 may further implement other various implementations of S1804 in the embodiment shown in fig. 18. It should be understood that the various elements shown in fig. 20 are merely examples, and that various elements described above may be technically added, combined, or transposed to implement the various steps of the embodiment shown in fig. 18.

Fig. 21 shows another terminal apparatus embodiment of the present application, which includes a receiver 2101, configured to receive at least two SRS resources configured by a network device, where the number of ports of each SRS resource is 1, each SRS resource is associated with at least two antennas, and antennas corresponding to each SRS resource are different. The receiver 2101 may further implement other various implementations of S1701 in the embodiment shown in fig. 17.

The terminal device further includes a transmitter 2102 configured to perform switching transmission between antennas corresponding to each SRS resource in a process of transmitting the SRS in each SRS resource. The transmitter 2102 may also be utilized to implement various other embodiments of step 1701. The processor may also be used to process various received information and perform necessary processing before transmitting the information. The terminal device may further comprise a processor for processing the received respective information and performing necessary processing before transmitting the information, such as determining parameters for which the terminal device needs to be notified in the respective steps.

Fig. 22 shows another embodiment of a terminal apparatus of the present application, which may include a receiver 2201 for receiving SRS resource configuration information of a network device, where the SRS resource configuration information is used for configuring SRS resources. The receiver 2201 may further implement other various implementations of S1801 in the embodiment shown in fig. 18.

A processor 2202 to determine antenna selection enablement. In one embodiment, the receiver 2201 is further configured to receive an enable signaling. The processor 2202 may further implement various other embodiments of S1802 in conjunction with the receiver 2201.

The receiver 2201 is further configured to implement the step of receiving a trigger indication sent by the network device, where the trigger indication is used to trigger transmission of the SRS. The receiver 2201 may further implement other various implementations of S1803 in the embodiment shown in fig. 18. The processor may also be used to process various received information and perform necessary processing before transmitting the information.

A transmitter 2203, configured to determine a first time resource for transmitting the SRS according to the time resource for receiving the DCI and the relationship between the time resource for transmitting the DCI and the time resource for transmitting the SRS. The transmitter 2203 may further implement other various implementations of S1804 in the embodiment shown in fig. 18. It should be understood that the various components shown in fig. 22 are merely an example, and that various elements described above may be technically added, combined, or exchanged to implement the various steps of the embodiment shown in fig. 18.

Fig. 23 shows another embodiment of a network apparatus according to the present application, which includes a transmitting unit 2301, configured to configure at least two SRS resources to a terminal device, where the number of ports of each SRS resource is 1, each SRS resource is associated with at least two antennas, and antennas corresponding to each SRS resource are different. The association here may be a correspondence. The transmitting unit 2301 may also implement the steps executed by other network devices in the S1701.

A receiving unit 2302 is configured to receive the SRS. The receiving unit 2302 may also implement the steps executed by the network device of the part in S2302, or the receiving unit may receive the SRS according to the transmission mode of the terminal. And determines the SRS transmitted by each resource and antenna.

Fig. 24 illustrates yet another network device embodiment of the present application. A sending unit 2401 is included, configured to send SRS resource configuration information to the terminal device. The sending unit 2401 is further configured to send an enable indication to the terminal device; the sending unit is further configured to send a trigger instruction to the terminal device. The transmitting unit may further perform each of the transmitting steps of S1801 to 1803 shown in fig. 18. The network device further includes a determining unit configured to determine a parameter that needs to be notified to the terminal device in each step before executing each step of S1801 to S1803. The network device may further include a processing unit 2402 for processing the received respective information and performing necessary processing before transmitting the information.

Fig. 25 shows another embodiment of a network apparatus according to the present application, which includes a transmitter 2501 configured to configure at least two SRS resources to a terminal device, where the number of ports of each SRS resource is 1, each SRS resource is associated with at least two antennas, and antennas corresponding to each SRS resource are different. The association here may be a correspondence. The transmitting unit 2501 may also implement steps performed by other network devices in the S1701.

A receiver 2502, configured to receive the SRS. The receiver 2502 may also implement the steps executed by the network device in the part of S1702, or the receiving unit may receive the SRS according to the transmission mode of the terminal device. And determines the SRS transmitted by each resource and antenna. The network device may further comprise a processor for processing the respective information received and performing the necessary processing before transmitting the information.

Fig. 26 illustrates yet another network device embodiment of the present application. A transmitter 2601 is included for transmitting SRS resource configuration information to the terminal device. The transmitter 2601 is further configured to transmit an enable indication to the terminal device; the sending unit is further configured to send a trigger instruction to the terminal device. The transmitting unit may further perform the respective transmitting steps of S1801 to S1803 shown in fig. 18. The network device further includes a processor 2602, configured to process each received message before executing each step of S1801 to S1803, and perform necessary processing before sending the message, for example, determining parameters that need to be notified to the terminal device in each step.

As another embodiment of the present application, a chip system includes a chip for executing instructions and a memory for storing necessary data. The chip may perform the steps shown in fig. 17 and 18, and the memory is used to store some necessary process data. As another embodiment of the present application, a communication system includes a terminal device and a network device, where the network device may be the base station or the like described above. The terminal device may execute the functions executed by the terminal devices, and the network device may execute the functions executed by the network devices.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In the above embodiments, the implementation may be wholly or partially realized 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, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Versatile Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A method of communication, comprising:

the method comprises the steps that a terminal device obtains reference information, the reference information and a subcarrier interval of the terminal device or a system parameter of the terminal device indicate reserved time slots and reserved symbols in the reserved time slots, and the reference information is used for enabling the time domain positions of the reserved time slots determined by a plurality of terminal devices connected to a network device to be the same and enabling the time domain positions of the reserved symbols in the reserved time slots determined by the plurality of terminal devices to be the same; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel;

and the terminal equipment determines the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

2. The method of claim 1, wherein the reference information comprises at least one of a length of a reference time unit, a reference system parameter, and a reference subcarrier spacing.

3. The method of claim 2, wherein the terminal device obtaining the length of the reference time unit or the reference system parameter comprises:

the terminal equipment receives a first notification signaling from the network equipment, and the terminal equipment obtains the length of the reference time unit from the first notification signaling; the length of the reference time unit is the length of the maximum time scheduling unit supported by the communication system where the terminal equipment is located; or the like, or, alternatively,

the terminal equipment receives a second notification signaling from the network equipment, and the terminal equipment obtains the reference system parameter from the second notification signaling; the index of the reference system parameter is the minimum index of the system parameters supported by the communication system; or the like, or, alternatively,

the terminal equipment determines a reference subcarrier interval according to the frequency band of the carrier where the terminal equipment is located and the mapping relation between the frequency band and the subcarrier interval, and determines the length of the minimum time scheduling unit of the reference subcarrier interval as the length of the reference time unit; or the like, or, alternatively,

and the terminal equipment determines the reference system parameter according to the frequency band of the carrier where the terminal equipment is located, the mapping relation between the frequency band and the subcarrier interval and the mapping relation between the subcarrier interval and the system parameter.

4. The method of any of claims 1-3,

the method further comprises the following steps:

the terminal equipment receives ith indication information from the network equipment, wherein the ith indication information comprises at least one bit; the ith indication information belongs to a signaling group, the signaling group comprises at least one indication information, i is an index of the indication information in the signaling group, and the indication information included in the signaling group is used for indicating the reserved time slot and a reserved symbol in the reserved time slot;

the determining, by the terminal device, the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal device or the system parameter of the terminal device includes:

and the terminal equipment determines the reserved time slot and the reserved symbol in the reserved time slot according to the ith indication information, the reference information, the number of the indication information included in the signaling group, the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

5. The method of claim 4, wherein the terminal device determines the reserved time slot and the reserved symbol in the reserved time slot according to the ith indication information, the reference information, the number of indication information included in the signaling group, and a subcarrier spacing of the terminal device or a system parameter of the terminal device, and comprises:

wherein the content of the first and second substances,

is the numbering of the time slots, S_iTaking the value of at least one bit included in the ith indication information, wherein Δ f is the subcarrier interval of the terminal equipment, and Δ f_RAnd the reference subcarrier interval corresponding to the reference time unit is mod operation, and M is the number of indication information included in the signaling group.

6. The method of claim 4, wherein the terminal device determines the reserved time slot and the reserved symbol in the reserved time slot according to the ith indication information, the reference information, the number of indication information included in the signaling group, and a subcarrier spacing of the terminal device or a system parameter of the terminal device, and comprises:

wherein the content of the first and second substances,

is the numbering of the time slots, S_iFor the value of the at least one bit, μ is a system parameter of the terminal device, μ_RAnd mod represents a modulo operation for the system parameter corresponding to the reference time unit, and M is the number of indication information included in the signaling group.

7. The method of claim 4, wherein the at least one bit is a bitmap; the determining, by the terminal device, the reserved time slot and the reserved symbol in the reserved time slot according to the ith indication information, the reference information, the number of indication information included in the signaling group, and a subcarrier interval of the terminal device or a system parameter of the terminal device includes:

for satisfying the following formula

In time slot of (2), determining S_iThe k-th bit is 1, then the number is [ k × Δ f/Δ f [ ]_R,(k+1)×Δf/Δf_R-1]The symbol of (a) is the reserved symbol; and/or the presence of a gas in the gas,

for the satisfaction of

In time slot of (2), determining S_iThe k-th bit is 1, then the number is [ k × μ/Δ μ_R,(k+1)×μ/Δμ_R-1]The symbol of (a) is the reserved symbol; wherein the content of the first and second substances,

is the numbering of the time slots, S_iFor the bitmap, Δ f is the subcarrier spacing of the terminal device, Δ f_RIs the reference subcarrier interval corresponding to the reference time unit, mu is the system parameter of the terminal equipment, mu_RAnd mod represents a modulo operation for the system parameter corresponding to the reference time unit, and M is the number of indication information included in the signaling group.

8. A method of communication, comprising:

the terminal equipment receives a third notification signaling from the network equipment, wherein the third notification signaling is used for enabling the time domain positions of the reserved time slots determined by a plurality of terminal equipment connected to the network equipment to be the same;

the terminal equipment determines a reserved time slot according to the third notification signaling, wherein the reserved time slot is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; the third notification signaling comprises at least one of the following configurations:

the transmission period of the sounding reference signal is 4 time slots;

the transmission period of the sounding reference signal is 8 time slots;

the transmission period of the sounding reference signal is 640 time slots;

the transmission period of the sounding reference signal is 1280 time slots;

9. The method of claim 8, wherein the third notification signaling comprises at least one configuration of:

10. A method of communication, comprising:

the method comprises the steps that a network device obtains reference information, the reference information and a subcarrier interval of a terminal device or a system parameter of the terminal device indicate a reserved time slot and reserved symbols in the reserved time slot, and the reference information is used for enabling the time domain positions of the reserved time slot determined by a plurality of terminal devices connected to the network device to be the same and enabling the time domain positions of the reserved symbols in the reserved time slot determined by the plurality of terminal devices to be the same; the reserved symbol is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved symbol is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel;

and the network equipment determines the reserved time slot and the reserved symbol in the reserved time slot according to the reference information and the subcarrier interval of the terminal equipment or the system parameter of the terminal equipment.

11. The method of claim 10, wherein the reference information comprises at least one of a length of a reference time unit, a reference system parameter, and a reference subcarrier spacing.

12. The method of claim 11, wherein the method further comprises:

the network equipment sends a first notification signaling to the terminal equipment, wherein the first notification signaling is used for indicating the length of the reference time unit; the length of the reference time unit is the length of the maximum time scheduling unit supported by the communication system where the terminal equipment is located; or the like, or, alternatively,

the network equipment sends a second notification signaling to the terminal equipment, wherein the second notification signaling is used for indicating the reference system parameter; the index of the reference system parameter is a minimum index of system parameters supported by the communication system.

13. The method of any of claims 10-12, further comprising:

the network equipment sends ith indication information to the terminal equipment, wherein the ith indication information comprises at least one bit; the ith indication information belongs to a signaling group, the signaling group comprises at least one indication information, i is an index of the indication information in the signaling group, and the indication information included in the signaling group is used for indicating the reserved time slot and a reserved symbol in the reserved time slot.

14. A method of communication, comprising:

the network equipment generates a third notification signaling, wherein the third notification signaling is used for indicating a reserved time slot, the third notification signaling is used for enabling the time domain positions of the reserved time slot determined by a plurality of terminal equipment connected to the network equipment to be the same, the reserved time slot is used for transmitting a sounding reference signal and/or a physical uplink control channel, or the reserved time slot is not used for transmitting a physical uplink shared channel and/or a physical downlink shared channel; the third notification signaling comprises at least one of the following configurations:

the transmission period of the sounding reference signal is 4 time slots;

the transmission period of the sounding reference signal is 8 time slots;

the transmission period of the sounding reference signal is 640 time slots;

the transmission period of the sounding reference signal is 1280 time slots;

and the network equipment sends the third notification signaling to the terminal equipment.

15. The method of claim 14, wherein the third notification signaling comprises at least one configuration of:

a fifth configuration index of the sounding reference signal is 2569-4095, a transmission cycle of the sounding reference signal is a reserved number of time slots, and a transmission offset of the sounding reference signal is a difference value between the third configuration index and the reserved number;