CN113273098B

CN113273098B - Signal transmission method, related equipment and system

Info

Publication number: CN113273098B
Application number: CN201980088632.9A
Authority: CN
Inventors: 任占阳; 贾树葱
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2023-02-03
Anticipated expiration: 2039-01-17
Also published as: CN113273098A; WO2020147086A1

Abstract

The embodiment of the invention discloses a signalTransmission method, relevant equipment and system, wherein the method comprises the following steps: the network device performs channel sensing for a first time period. If the network device senses that the channel is in an idle state, the network device sequentially sends signals of M sending beams in M time periods after the first time period. The total number of wave beams configured by the network equipment is K, and the s-th transmission wave beam in the K transmission wave beams corresponds to N _s And in each time window, the K transmission beams correspond to the P time windows. The K transmission beams include the M transmission beams, the M transmission beams include an ith transmission beam of the K transmission beams, and a second time slot of the M time slots is located within a jth time window corresponding to the ith transmission beam. The embodiment of the invention can reduce the signal detection overhead of the terminal in the unlicensed spectrum wireless communication based on the beamforming technology.

Description

Signal transmission method, related equipment and system

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a signal transmission method, a related device, and a system.

Background

With the development of wireless communication technology, it has been difficult for current spectrum resources to meet the explosive increase of capacity demand of users. The spectrum resource is a non-renewable natural resource, and in order to improve the network capacity, not only new technologies such as a multiple-input multiple-output technology, ultra-dense networking, a full-duplex technology and the like need to be developed, but also new available resources need to be continuously mined. In recent years, unlicensed spectrum has received much attention to alleviate congestion problems of data traffic. From 2013 to 2018, research courses of unlicensed spectrum mobile communication technologies include long term evolution (LTE-U) over unlicensed spectrum, licensed Assisted Access (LAA), multeFire and unlicensed spectrum new mobile communication radio (5G NR). In order to use the unlicensed frequency band, the third generation partnership project (3 rd generation partnership project,3 gpp) release 13 proposes an LAA technique, that is, a carrier aggregation method is used to jointly use the unlicensed frequency band at 5GHZ and the licensed frequency band. LAA technology provides enhanced versions of WiFi with enhanced network capacity, coverage and simplified unified network management. The LTE-U technology deploys Long Term Evolution (LTE) to unlicensed spectrum, and completes communication using a standard LTE air interface protocol. The MulteFire technology applies LTE technology to unlicensed spectrum, provides high performance communication services like LTE, and simple deployment like Wi-Fi. The unlicensed spectrum 5G NR is a global standard of a brand new air interface design based on Orthogonal Frequency Division Multiplexing (OFDM), so that the spectrum utilization rate is improved, and a new network deployment scenario of the 5G NR is brought.

In the MulteFire technology, if an unlicensed spectrum is separately networked, a discovery signal (DRS) needs to be carried on the unlicensed spectrum, and transmission of the DRS signal needs to follow a channel access mechanism. The unlicensed spectrum wireless communication technology is applied to the development trend of a higher-frequency carrier spectrum unlicensed spectrum mobile communication technology, and in order to reduce the path loss of DRS signal transmission under a high-frequency carrier, a beam forming technology can be adopted to transmit DRS signals in different transmission beams. In order to increase the transmission opportunity of the DRS, DRS signal transmission based on discovery signal measurement timing configuration (DMTC) is proposed in the MulteFire technology. In the prior art, a terminal generally needs to detect and receive DRS signals in the whole DMTC window to measure channel quality. In unlicensed spectrum wireless communication based on beamforming technology, how to perform signal transmission to reduce detection overhead of a terminal is still a problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a signal transmission method, related equipment and a system, which can reduce the signal detection overhead of a terminal in the unlicensed spectrum wireless communication based on the beamforming technology.

In a first aspect, an embodiment of the present invention provides a signal transmission method, which is applied to a network device. The method can comprise the following steps: the network device performs channel sensing for a first time period. If the network device senses that the channel is in an idle state, the network device sequentially sends signals of M sending beams in M time periods after the first time period. The total number of the transmission beams configured by the network equipment is K, and the s-th transmission beam in the K transmission beams corresponds to N _s And the K sending beams correspond to P time windows. The K transmission beams include the M transmission beams, the M transmission beams include an ith transmission beam of the K transmission beams, and a second time slot of the M time slots is located within a jth time window corresponding to the ith transmission beam. The jth time window is N corresponding to the ith transmission beam _i One time window of the time windows. K is a positive integer greater than or equal to 1, P is a positive integer greater than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer of 1 to P, and M is a positive integer of 1 to K.

Implementing the method described in the first aspect, the network device configures K transmit beams, where an ith transmit beam of the K transmit beams corresponds to N _i And the K transmission beams correspond to P time windows in total. After the network equipment monitors that the channel is in an idle state, the network equipment sequentially sends M signals of sending beams in M time periods within the occupied time of the channel. Each of the M time segments corresponds to one of the P time windows. The network equipment is only in N in the P time windows _i Transmitting the signal of the ith transmission beam in a time window, N _i Less than P, so that the terminal under the coverage of the ith transmission beam only needs to be in the above-mentioned N _i The signal of the ith transmitting beam is detected and received in a time window for measuring the channel quality, and by adopting the invention, in the unlicensed spectrum wireless communication based on the beam forming technology,the signal detection overhead of the terminal is reduced.

In one possible design, before the network device sequentially transmits the signals of the M transmission beams in M time periods after the first time period, the method further includes: if the channel is monitored to be in an idle state, the network equipment determines the M transmitting beams from the K transmitting beams according to configuration information, wherein the configuration information comprises the corresponding relation between the K transmitting beams and the P time windows.

In one possible design, the first time period and the second time period are adjacent.

In one possible design, a time interval between the first time period and the earliest time period of the M time periods is greater than zero and less than a time duration of a time unit required for the network device to transmit a payload message.

In one possible design, a start time of an a-th time window of the P time windows is earlier than a start time of an a + 1-th time window of the P time windows, an end time of the a-th time window of the P time windows is later than the start time of the a + 1-th time window of the P time windows, and an end time of the a-th time window of the P time windows is earlier than the end time of the a + 1-th time window of the P time windows.

In one possible design, a start time of a b-th time window of the P time windows is earlier than a start time of a b + 1-th time window of the P time windows, and an end time of the b-th time window of the P time windows is equal to an end time of the b + 1-th time window of the P time windows.

In one possible design, a starting time of a c-th time window of the P time windows is equal to a starting time of a c + 1-th time window of the P time windows, and an ending time of the c-th time window of the P time windows is earlier than an ending time of the c + 1-th time window of the P time windows.

In one possible design, if the second time period is located in the jth time window and the second time period is located in the fth time window of the P time windows, the start time of the jth time window is earlier than or equal to the start time of the fth time window, and the start-stop time of the jth time window is earlier than or equal to the stop time of the fth time window, the network device preferentially transmits the signal of the ith transmission beam in the second time period.

In one possible design, the ending time of the e-th time window of the P time windows is equal to the starting time of the e + 1-th time window of the P time windows.

In a possible design, when P is greater than or equal to K, any consecutive K time windows in the P time windows correspond to the K transmit beams one to one.

In one possible design, the P time windows are time windows of a first window, the start time of the P time windows is the same as the start time of the first window, the end time of the P time windows is the same as the end time of the first window, the first window is one window in a first window set, and the time interval between the start time of the g-th window in the first window set and the start time of the g + 1-th window in the first window set is a first period.

In one possible design, a correspondence relationship between the time window in the g-th window and the K transmission beams is a first correspondence relationship, a correspondence relationship between the time window in the g + 1-th window and the K transmission beams is a second correspondence relationship, and the first correspondence relationship and the second correspondence relationship are the same.

In one possible design, a correspondence relationship between the time window in the g-th window and the K transmission beams is a first correspondence relationship, a correspondence relationship between the time window in the g + 1-th window and the K transmission beams is a second correspondence relationship, and the first correspondence relationship and the second correspondence relationship are different.

In one possible design, the first correspondence and the second correspondence satisfy a first law. The first rule is that if z is less than or equal to P _g+1 -x is a positive integer, then the transmission beam corresponding to the z-th time window in the g-th window is the same as the transmission beam corresponding to the z + x-th time window in the g + 1-th window, P _g+1 Is the g +1 thThe number of time windows in the window, x is a positive integer less than K; if z is greater than P _g+1 -x and is equal to or less than P _g+1 The positive integer of (2), the transmission beam corresponding to the z-th time window in the g-th window and the z + x-P in the g + 1-th window _g+1 The corresponding transmission beams of the time windows are the same.

In one possible design, the first correspondence and the second correspondence satisfy a first law. The first rule is if P _g+1 If +1-z is greater than zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 The corresponding transmitting wave beams of the +1-z time windows are the same; if P _g+1 +1-z is less than or equal to zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 * The corresponding transmitting beams of (t + 1) +1-z time windows are the same. t is such that P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Positive integer of (1), P _g The number of time windows in the g-th window in the first window set is counted.

In one possible design, the signal of the ith transmission beam transmitted by the network device includes a DRS signal.

In one possible design, the first window is a DMTC window.

In a second aspect, an embodiment of the present invention provides a signal transmission method, which is applied to a terminal device. The method can comprise the following steps: the terminal determines N corresponding to the ith transmission beam in the K transmission beams _i The position of each time window in P time windows, the s-th transmission beam in the K transmission beams configured by the network equipment corresponds to N _s A plurality of time windows, wherein the K transmission beams correspond to the P time windows, K is a positive integer larger than or equal to 1, P is a positive integer larger than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer greater than or equal to 1 and less than P. Terminal is at the above-mentioned N _i And detecting and receiving the signal of the ith transmission beam in each time window.

Implementing the method described in the second aspect, the terminal determines the above N _i A time window is abovePosition in P time windows and in the above-mentioned N _i The signal is measured within a time window. The N time windows _i And the terminal does not need to detect and receive the signal of the ith transmission beam at the time outside the time window.

In one possible design, the terminal determines N corresponding to the ith transmission beam of the K transmission beams _i The positions of the time windows in the P time windows comprise: the terminal determines the position of A time windows corresponding to the ith transmission beam in the K transmission beams and one or more adjacent transmission beams in the P time windows, wherein the A time windows comprise the N time windows _i A time window.

In one possible design, the terminal is at N above _i Detecting and receiving the signal of the ith transmission beam in each time window, including: the terminal detects and receives signals of the ith transmission beam and one or more adjacent transmission beams in the A time windows.

In one possible design, the terminal determines N as described above _i Position of a time window in said P time windows and in said N time windows _i Before detecting and receiving signals in each time window, the method further comprises the following steps: the terminal receives a signal of the ith transmission beam transmitted by the network device at a first time, wherein the signal includes configuration information, the first time is earlier than the starting time of the P time windows, and the configuration information includes a corresponding relation between the P time windows and the K transmission beams. The terminal determines N corresponding to the ith transmission beam in the K transmission beams _i The positions of the time windows in the P time windows comprise: the terminal determines the N corresponding to the ith transmission beam in the K transmission beams according to the configuration information _i The position of each time window in the P time windows.

In one possible design, a start time of a (b) th time window of the P time windows is earlier than a start time of a (b + 1) th time window of the P time windows, and an end time of the (b) th time window of the P time windows is equal to an end time of the (b + 1) th time window of the P time windows.

In one possible design, when P is greater than or equal to K, any consecutive K time windows in the P time windows correspond to the K transmit beams one to one.

In a possible design, a corresponding relationship between the time window in the g-th window and the K transmission beams is a first corresponding relationship, a corresponding relationship between the time window in the g + 1-th window and the K transmission beams is a second corresponding relationship, and the first corresponding relationship and the second corresponding relationship are different.

In one possible design, the first correspondence and the second correspondence satisfy a first law. The first rule is that if z is less than or equal to P _g+1 -x is a positive integer, then the transmission beam corresponding to the z-th time window in the g-th window is the same as the transmission beam corresponding to the z + x-th time window in the g + 1-th window, P _g+1 The number of the time windows in the g +1 th window is, and x is a positive integer less than K; if z is greater than P _g+1 -x and is equal to or less than P _g+1 The positive integer of (2), the transmission beam corresponding to the z-th time window in the g-th window and the z + x-P in the g + 1-th window _g+1 The transmission beams corresponding to the time windows are the same.

In one possible design, the first correspondence and the second correspondence satisfy a first law. The first rule is if P _g+1 If +1-z is greater than zero, the transmitting beam corresponding to the z-th time window in the g-th window is corresponding to the P-th time window in the g + 1-th window _g+1 The corresponding transmitting wave beams of the +1-z time windows are the same; if P _g+1 +1-z is less than or equal to zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 * The corresponding transmitting beams of (t + 1) +1-z time windows are the same. t is such that P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Positive integer of (1), P _g The number of time windows in the g-th window in the first window set is shown.

In one possible design, the first window is a DMTC window.

In a third aspect, an embodiment of the present invention provides a network device, which may include a plurality of functional modules or units, and be configured to correspondingly execute the signal transmission method provided in the first aspect.

For example, the network device includes: a listening unit and a sending unit.

And the monitoring unit is used for carrying out channel monitoring in the first time period.

And the transmitting unit is used for sequentially transmitting the signals of the M transmitting beams in M time periods after the first time period if the monitoring unit monitors that the channel is in an idle state. The total number of the transmission beams configured by the network equipment is K, and the s-th transmission beam in the K transmission beams corresponds to N _s And the K sending beams correspond to P time windows. The K transmission beams include the M transmission beams, the M transmission beams include an ith transmission beam of the K transmission beams, and a second time slot of the M time slots is located within a jth time window corresponding to the ith transmission beam. The jth time window is N corresponding to the ith transmission beam _i One time window of the time windows. K is a positive integer greater than or equal to 1, P is a positive integer greater than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer of 1 to P, and M is a positive integer of 1 to K.

In a possible design, before the sending unit sends the signals of the M sending beams in sequence in M time periods after the first time period, the network device further includes a first determining unit. A first determining unit, configured to determine, if it is detected that a channel is in an idle state, the M transmit beams from the K transmit beams according to configuration information, where the configuration information includes a correspondence between the K transmit beams and the P time windows.

In a possible design, the time interval between the first time period and the earliest time period of the M time periods is greater than zero and less than the time duration of a time unit required by the sending unit to send a message carrying useful information.

In one possible design, if a second time period is located in the jth time window and the second time period is located in the fth time window of the P time windows, the start time of the jth time window is earlier than or equal to the start time of the fth time window, and the start-stop time of the jth time window is earlier than or equal to the stop time of the fth time window, the transmitting unit preferentially transmits the signal of the ith transmission beam in the second time period.

In one possible design, any consecutive K time windows in the P time windows correspond to the K transmit beams one-to-one.

In one possible design, the P time windows are time windows of a first window, a start time of the P time windows is the same as the start time of the first window, an end time of the P time windows is the same as the end time of the first window, the first window is one window in a first window set, and a time interval between the start time of a g-th window in the first window set and the start time of a g + 1-th window in the first window set is a first period.

In a possible design, a corresponding relationship between the time window in the g-th window and the K transmission beams is a first corresponding relationship, a corresponding relationship between the time window in the g + 1-th window and the K transmission beams is a second corresponding relationship, and the first corresponding relationship and the second corresponding relationship are the same.

In one possible design, the first correspondence and the second correspondence satisfy a first law. The first rule is that if z is less than or equal to P _g+1 -x, the transmission beam corresponding to the z-th time window in the g-th window is the same as the transmission beam corresponding to the z + x-th time window in the g + 1-th window, P _g+1 The number of the time windows in the g +1 th window is, and x is a positive integer less than K; if z is greater than P _g+1 -x and P or less _g+1 The transmission beam corresponding to the z-th time window in the g-th window and the z + x-P in the g + 1-th window _g+1 The corresponding transmission beams of the time windows are the same.

In one possible design, the first correspondence and the second correspondence satisfy a first law. The first rule is if P _g+1 If +1-z is greater than zero, the transmitting beam corresponding to the z-th time window in the g-th window is corresponding to the P-th time window in the g + 1-th window _g+1 The corresponding transmitting wave beams of +1-z time windows are the same; if P _g+1 +1-z is less than or equal to zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 * The corresponding transmitting beams of (t + 1) +1-z time windows are the same. t is such that P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Positive integer of (1), P _g The number of time windows in the g-th window in the first window set is shown.

In one possible design, the signal of the ith transmission beam transmitted by the transmitting unit includes a DRS signal.

In one possible design, the first window is a DMTC window.

In a fourth aspect, an embodiment of the present invention provides a terminal device, where the terminal device may include a plurality of functional modules or units, and is configured to correspondingly execute the signal transmission method provided in the second aspect.

For example, the terminal device includes: a second determination unit and a detection unit.

A second determining unit for determining N corresponding to ith transmission beam of the K transmission beams _i The position of each time window in P time windows, the s-th transmission beam in the K transmission beams configured by the network equipment corresponds to N _s A plurality of time windows, wherein the K transmission beams correspond to the P time windows, K is a positive integer larger than or equal to 1, P is a positive integer larger than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer greater than or equal to 1 and less than P.

A detection unit for detecting the signal at the above N _i And detecting and receiving the signal of the ith transmission beam in each time window.

In one possible design, the second determining unit determines N corresponding to the ith transmission beam of the K transmission beams _i The positions of the time windows in the P time windows comprise: a second determining unit determines the positions of a time windows corresponding to the ith transmission beam and one or more adjacent transmission beams among the K transmission beams in the P time windows, wherein the a time windows include the N _i A time window.

In one possible design, the detection unit is at N _i Detecting and receiving signals of the ith transmission beam in each time window, comprising: the detection unit detects and receives the signal of the ith transmission beam in the A time windows.

In one possible design, the second determining unit determines N corresponding to the ith transmission beam of the K transmission beams _i The terminal device further comprises a receiving unit, wherein the time window is before the position of the P time windows. The receiving unit is configured to receive, at a first time, a signal of the ith transmission beam transmitted by the network device. The signal includes configuration information, the first time is earlier than the starting time of the P time windows, and the configuration information includes a corresponding relationship between the P time windows and the K transmission beams. The second determining unit determines N corresponding to ith transmission beam in the K transmission beams _i The positions of the time windows in the P time windows comprise: the second determining unit determines the ith transmission wave in the K transmission waves according to the configuration informationBundle corresponding to the above N _i The position of each time window in the P time windows.

In one possible design, the first correspondence and the second correspondence satisfy a first law. The first rule is if P _g+1 If +1-z is greater than zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 The corresponding transmitting wave beams of +1-z time windows are the same; if P _g+1 +1-z is less than or equal to zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 * The corresponding transmitting beams of (t + 1) +1-z time windows are the same. t is such that P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Positive integer of (1), P _g The number of time windows in the g-th window in the first window set is shown.

In one possible design, the first window is a DMTC window.

In a fifth aspect, an embodiment of the present invention provides a network device, configured to execute the signal transmission method provided in the first aspect. The network device may include: memory, processor, transmitter, receiver, wherein: the transmitter and receiver are used to communicate with other communication devices, such as a network device or a second communication device. The memory is used for storing implementation codes of the signal transmission method provided by the first aspect, and the processor is used for executing the program codes stored in the memory, namely executing the signal transmission method provided by the first aspect.

In a sixth aspect, an embodiment of the present invention provides a terminal device, configured to execute the signal transmission method provided in the second aspect. The terminal device may include: memory, processor, transmitter, receiver, wherein: the transmitter and receiver are used to communicate with other communication devices, such as a network device or a first communication device. The memory is used for storing implementation codes of the signal transmission method provided by the second aspect, and the processor is used for executing the program codes stored in the memory, namely executing the signal transmission method provided by the second aspect.

In a seventh aspect, an embodiment of the present invention provides a communication system, where the communication system includes: network equipment and terminal equipment.

Wherein:

the network device may be the network device described in the third aspect, or may be the network device described in the fifth aspect.

The terminal device may be the terminal device described in the fourth aspect, or may be the terminal device described in the sixth aspect.

In an eighth aspect, the present invention provides a communication chip, which may include: a processor, and one or more interfaces coupled to the processor. The processor may be configured to call the implementation program of the signal transmission method provided in the first aspect from the memory, and execute the instructions included in the program. The interface may be configured to output a data processing result of the processor.

In a ninth aspect, the present invention provides a communication chip, which may include: a processor, and one or more interfaces coupled to the processor. Wherein the processor is configured to call the implementation program of the signal transmission method provided in the second aspect from the memory, and execute the instructions included in the program. The interface may be configured to output a data processing result of the processor.

In a tenth aspect, an embodiment of the present invention provides a computer-readable storage medium, which has instructions stored thereon, and when the computer-readable storage medium is executed on a processor, the processor is caused to execute the signal transmission method described in the first aspect.

In an eleventh aspect, the present invention provides a computer-readable storage medium, which stores instructions that, when executed on a processor, cause the processor to execute the signal transmission method described in the second aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer program product containing instructions, which when run on a processor, causes the processor to execute the signal transmission method described in the first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a computer program product containing instructions, which when run on a processor, causes the processor to execute the signal transmission method described in the second aspect.

Drawings

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

fig. 2 is a schematic diagram of a hardware architecture of a network device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a hardware architecture of a terminal device according to an embodiment of the present invention;

fig. 4 is a schematic flowchart of a signal transmission method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a receive beam and a transmit beam provided by an embodiment of the present invention;

FIG. 6 is a schematic LBT of an energy detection mode according to an embodiment of the present invention;

FIG. 7A is a schematic diagram of a position relationship between two adjacent time windows according to an embodiment of the present invention;

FIG. 7B is a schematic diagram of a position relationship of P time windows according to an embodiment of the present invention;

FIG. 8A is a schematic diagram of another position relationship between two adjacent time windows according to an embodiment of the present invention;

FIG. 8B is a schematic diagram of another position relationship of P time windows according to an embodiment of the present invention;

FIG. 9A is a schematic diagram of another position relationship between two adjacent time windows according to an embodiment of the present invention;

FIG. 9B is a schematic diagram illustrating another position relationship of P time windows according to an embodiment of the present invention;

FIG. 10A is a schematic diagram of another position relationship between two adjacent time windows according to an embodiment of the present invention;

FIG. 10B is a schematic diagram illustrating another position relationship of P time windows according to an embodiment of the present invention;

FIG. 11 is a schematic diagram illustrating another position relationship of P time windows according to an embodiment of the present invention;

FIG. 12 is a schematic diagram illustrating another position relationship of P time windows according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of another position relationship of P time windows according to an embodiment of the present invention;

fig. 14A is a schematic diagram of signal transmission according to an embodiment of the present invention;

FIG. 14B is a schematic diagram of another signaling scheme provided by an embodiment of the present invention;

FIG. 14C is a schematic diagram of another signaling scheme provided by an embodiment of the present invention;

FIG. 15 is a diagram illustrating a first set of windows according to an embodiment of the present invention;

fig. 16A is a schematic diagram illustrating a correspondence relationship between a time window and a transmission beam according to an embodiment of the present invention;

fig. 16B is a schematic diagram illustrating a correspondence relationship between a time window and a transmission beam according to an embodiment of the present invention;

fig. 17 is a schematic diagram of another corresponding relationship between time windows and transmission beams according to an embodiment of the present invention;

fig. 18 is a schematic diagram illustrating another corresponding relationship between a time window and a transmission beam according to an embodiment of the present invention;

FIG. 19 is a functional block diagram of another network device provided by an embodiment of the present invention;

fig. 20 is a functional block diagram of another terminal device provided in the embodiment of the present invention;

fig. 21 is a schematic structural diagram of a communication chip according to an embodiment of the present invention.

Detailed Description

The terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Fig. 1 shows a wireless communication system according to an embodiment of the present invention. The wireless communication system may operate in a high frequency band, and is not limited to the LTE system, and may be a fifth generation mobile communication (5g) system, a New Radio (NR) system, a Machine to Machine (M2M) system, and the like that are evolved in the future. As shown in fig. 1, the wireless communication system 100 may include: one or more network devices 101, one or more terminal devices 103, and a core network (not shown). Wherein:

the network device 101 may be a base station, which may be configured to communicate with one or more terminals and may also be configured to communicate with one or more base stations having partial terminal functions (e.g., communication between a macro base station and a micro base station, such as an access point). The base station may be a Base Transceiver Station (BTS) in a time division synchronous code division multiple access (TD-SCDMA) system, or an evolved Node B (eNB) in an LTE system, or a base station in a 5G system or a new air interface (NR) system. In addition, a base station may also be an Access Point (AP), a Transmission Receive Point (TRP), a Central Unit (CU), or other network entities, and may include some or all of the functionality of the above network entities.

The terminal devices 103 may be distributed throughout the wireless communication system 100 and may be stationary or mobile. In some embodiments of the present invention, terminal device 103 may be a mobile device, mobile station (mobile station), mobile unit (mobile unit), M2M terminal, wireless unit, remote unit, terminal agent, mobile client, or the like.

In an embodiment of the present invention, the wireless communication system 100 is a multi-beam communication system. Wherein:

the network device 101 may be configured with a large-scale antenna array and utilize beamforming techniques to steer the antenna array to form differently directed beams. In order to cover the entire cell 107, the network device 101 needs to use a plurality of differently directed beams.

For example, in the downlink process, the network device 101 may sequentially transmit a wireless signal (such as a DRS signal, a downlink Reference Signal (RS) and/or a downlink synchronization signal block (SS block) using beams of different orientations, the terminal device 103 detects and receives a wireless signal transmitted by a transmission beam of the network device 101, and may perform channel quality measurement (or estimation) according to the detected and received wireless signal, based on the channel quality measurement (or estimation), the terminal device may measure, update and predict a first channel quality indicator, which includes a standard time deviation (RSRQ) of an instantaneous signal quality or an instantaneous time deviation of an RSRQ, an RSRQ (signal to interference and noise ratio) of a carrier to interference and noise ratio (CINR), a SINR (signal to interference and noise ratio), a rsr (signal strength indicator), an rsr (signal strength indicator, RSSI), a reference signal received power (received signal), a received signal (reference signal), an RSRQ (signal to interference and noise ratio), and an instantaneous RSRQ (time deviation of an instantaneous signal quality metric.

In the communication system, the terminal device 103 may be provided with an antenna array, or may convert a different beam to transmit and receive a signal. The embodiment of the present invention is not particularly limited thereto.

In various embodiments of the present invention, the beams may be divided into a transmit beam and a receive beam for the network device 101, and one network device 101 may have multiple transmit beams and multiple receive beams.

The embodiment of the present invention does not specifically limit the beam used for receiving and transmitting the signal of the terminal device 103. It is to be understood that the transmit beam and the receive beam appearing in the embodiments of the present invention refer to both the transmit beam of the network device and the receive beam of the network device.

Referring to fig. 2, fig. 2 illustrates a network device 200 according to an embodiment of the present invention. As shown in fig. 2, the network device 200 may include: one or more network device processors 201, memory 202, communication interface 203, transmitter 205, receiver 206, coupler 207, and antenna 208. These components may be connected by a bus 204, which fig. 2 illustrates as being connected by a bus. Wherein:

the communication interface 203 may be used for the network device 200 to communicate with other communication devices, such as terminal devices or other network devices. Specifically, the communication interface 203 may be a Long Term Evolution (LTE) (4G) communication interface, or may be a communication interface of a 5G or future new air interface. Without being limited to a wireless communication interface, network device 200 may also be configured with a wired communication interface 203 to support wired communication, e.g., a backhaul link between one network device 200 and other network devices 200 may be a wired communication connection.

The transmitter 205 may be configured to perform transmit processing on the signal output by the network device processor 201, for example, by performing directional transmission through beamforming. Receiver 206 may be used for receive processing of mobile communication signals received by antenna 208, such as directional reception via beamforming. In some embodiments of the invention, transmitter 205/receiver 206 may include a beamforming controller to control the directional transmission/reception of signals.

In some embodiments of the present invention, transmitter 205 and receiver 206 may be considered a wireless modem. In the network device 200, the number of the transmitters 205 and the receivers 206 may be one or more. The antenna 208 may be used to convert electromagnetic energy in the transmission line to electromagnetic energy in free space, or vice versa. The coupler 207 may be used to multiplex the mobile communications signal for distribution to a plurality of receivers 206.

The memory 202 is coupled to the network device processor 201 for storing various software programs and/or sets of instructions. In particular, the memory 202 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices. The memory 202 may store an operating system (hereinafter referred to as a system), such as an embedded operating system like uCOS, vxWorks, RTLinux, etc. The memory 202 may also store a network communication program that may be used to communicate with one or more additional devices, one or more terminal devices, one or more network devices.

The network device processor 201 may be configured to perform radio channel management, implement call and communication link establishment and teardown, and provide cell switching control for terminal devices in the control area. Specifically, the network device processor 201 may include: an administration/communication module (AM/CM) (a center for voice channel exchange and information exchange), a Basic Module (BM) (a center for completing call processing, signaling processing, radio resource management, management of a radio link, and circuit maintenance functions), a code conversion and sub-multiplexing unit (TCSM) (a center for completing multiplexing, demultiplexing, and code conversion functions), and so on.

In embodiments of the present invention, the network device processor 201 may be configured to read and execute computer readable instructions. Specifically, the network device processor 201 may be configured to call a program stored in the memory 202, for example, a program for implementing the signal transmission method provided by one or more embodiments of the present invention on the network device 200 side, and execute instructions contained in the program.

It is understood that the network device 200 may be the network device 101 in the wireless communication system 100 shown in fig. 1, and may be implemented as a base transceiver station, a wireless transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a NodeB, an eNodeB, an access point or a TRP, etc.

It should be noted that the network device 200 shown in fig. 2 is only one implementation manner of the embodiment of the present invention, and in practical applications, the network device 200 may further include more or less components, which is not limited herein.

Referring to fig. 3, fig. 3 illustrates a terminal device 300 according to an embodiment of the present invention. As shown in fig. 3, the terminal device 300 may include: one or more terminal device processors 301, memory 302, communication interface 303, receiver 305, transmitter 306, coupler 307, antenna 308, terminal device interface 309. These components may be connected by a bus 304 or otherwise, as illustrated in FIG. 3 by a bus. Wherein:

the communication interface 303 may be used for the terminal device 300 to communicate with other communication devices, such as network devices. In particular, the network device may be the network device 200 shown in fig. 2. Specifically, the communication interface 303 may be a Long Term Evolution (LTE) (4G) communication interface, or may be a communication interface of a 5G or future new air interface. Not limited to a wireless communication interface, the terminal device 300 may also be configured with a wired communication interface 303, such as a Local Access Network (LAN) interface. Transmitter 306 may be configured to transmit signals output by terminal device processor 301. Receiver 305 may be used for receive processing of mobile communication signals received by antenna 308.

In some embodiments of the present invention, the transmitter 306 and the receiver 305 may be considered a wireless modem. In the terminal device 300, the number of the transmitters 306 and the receivers 305 may be one or more. The antenna 308 may be used to convert electromagnetic energy in the transmission line to electromagnetic energy in free space or vice versa. The coupler 307 is used to split the mobile communication signal received by the antenna 308 into multiple paths and distribute the multiple paths to the plurality of receivers 305.

In addition to the transmitter 306 and receiver 305 shown in fig. 3, the terminal device 300 may also include other communication components, such as a GPS module, a bluetooth (bluetooth) module, a wireless fidelity (Wi-Fi) module, and so forth. Not limited to wireless communication, the terminal device 300 may also be configured with a wired network interface (such as a LAN interface) to support wired communication.

Memory 302 is coupled to terminal device processor 301 for storing various software programs and/or sets of instructions. In particular, the memory 302 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices. The memory 302 may store an operating system (hereinafter referred to simply as a system), such as an embedded operating system like ANDROID, IOS, WINDOWS, or LINUX. The memory 302 may also store a network communication program that may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.

In some embodiments of the present invention, the memory 302 may be used to store an implementation program of the signal transmission method provided by one or more embodiments of the present invention on the terminal device 300 side. For the implementation of the signal transmission method provided in one or more embodiments of the present invention, please refer to the following embodiments.

Terminal device processor 301 may be configured to read and execute computer readable instructions. Specifically, the terminal device processor 301 may be configured to call a program stored in the memory 302, for example, a program for implementing the signal transmission method provided by one or more embodiments of the present invention on the terminal device 300 side, and execute instructions contained in the program.

It is understood that the terminal device 300 may be the terminal device 103 in the wireless communication system 100 shown in fig. 1, and may be implemented as a mobile device, a mobile station (mobile station), a mobile unit (mobile unit), a wireless unit, a remote unit, a terminal device agent, a mobile client, and so on.

It should be noted that the terminal device 300 shown in fig. 3 is only one implementation manner of the embodiment of the present invention, and in practical applications, the terminal device 300 may further include more or less components, which is not limited herein.

In this embodiment of the present invention, the transmission beam of the network device 101 is configured in advance for the network device 101.

In the foregoing operating environment, an embodiment of the present invention provides a signal transmission method. The method is suitable for use in MulteFire or other wireless communication systems using unlicensed spectrum. Fig. 4 is a schematic flow chart of a signal transmission method according to an embodiment of the present invention. As shown in fig. 4, the signal transmission method provided in the embodiment of the present invention includes, but is not limited to, steps S401 to S404. Possible implementations of embodiments of the method are described further below.

S401: the network device performs channel sensing for a first time period.

Channel sensing in embodiments of the present invention may be a predefined certain channel sensing technique.

Alternatively, the channel sensing may be Listen Before Talk (LBT), where LBT refers to that a device that needs to transmit data needs to detect a radio environment of a certain radio carrier before sending data on the radio carrier to determine whether another device is transmitting data on the radio carrier. Channel sensing may also be referred to as Clear Channel Assessment (CCA) or Carrier Sensing (CS), collectively referred to as channel sensing.

In this embodiment of the present invention, the LBT may be an LBT of an energy detection mode, as shown in fig. 5, where the LBT of the energy detection mode refers to when it is detected that energy on the wireless carrier is greater than a preset threshold, it is considered that there are other apparatuses transmitting data on the wireless carrier, the LBT of the apparatus on the wireless carrier fails, and the apparatus will avoid for a period of time and then attempt to transmit data; and when detecting that the energy on the wireless carrier is less than a preset threshold, considering that the wireless carrier is in an idle state, wherein the LBT of the device on the wireless carrier is successful, and the device sends data on the wireless carrier. In this embodiment of the present invention, the LBT may be an LBT of a signal detection mode, where the LBT of the signal detection mode is to determine whether a channel is idle by detecting whether a pre-designed signal is on a wireless carrier. In addition, in the embodiment of the present invention, the LBT may also be LBT in other modes, for example, LBT measured by factors such as signal power or signal-to-noise ratio. The following description of the idle state of a channel may refer to the detection that the energy on the channel is less than the energy threshold, or may refer to the non-detection of a pre-designed signal on the channel, which is not limited herein. The following description of the wireless carrier not being in an idle state may refer to the detection of the energy on the channel being greater than or equal to the energy threshold, or may refer to the detection of the channel having a pre-designed signal, which is not limited herein.

Third Generation partnership project (3 rd generation partnership project,3 GPP) in the study of LAA, four types of LBT mechanisms were evaluated, including:

type 1: there is no LBT, i.e., the device does not perform LBT before transmitting data.

Type 2: LBT without random back-off procedure, i.e. LBT of fixed time length. Frames of fixed duration are employed, including channel occupancy time and idle time. And carrying out channel sensing before data transmission, if the channel is in an idle state, carrying out data transmission in the following occupied time of the channel, otherwise, transmitting data in the whole frame period. For convenience of description, category-2LBT is hereinafter abbreviated.

Type 3: the LBT with the random back-off process adopts a frame structure with an unfixed frame period, and the length of a contention window is fixed. Data transmission may start immediately if the channel is in an idle state, otherwise a Contention Window (CW) is entered.

Type 4: the LBT with the random back-off process adopts a frame structure with an unfixed frame period, and the length of a contention window is unfixed. Instead of using a fixed length contention window, the transmitting end device may change the length of the CW. For convenience of description, category-4LBT is hereinafter abbreviated.

The random backoff means that the device can only transmit data on a channel if the channel is still in an idle state within a waiting time after the device detects that the channel is in the idle state. The latency needs to be selected between a specified minimum and maximum value, the range specified by the minimum and maximum values is called CW.

Alternatively, the channel sensing may be Category-2LBT. Channel sensing may also be Category-4LBT.

After the unlicensed spectrum channel is accessed, the duration of signal transmission using the channel is limited by the Maximum Channel Occupancy Time (MCOT). The MCOT of Category-2LBT is small, typically taking 1 millisecond (ms). The MCOT of Category-4LBT is larger, and the higher the traffic priority of channel access, the smaller the MCOT of Category-4LBT is relatively.

Optionally, the network device performs omnidirectional channel sensing in the first time period. The omni-directional channel sensing means that the network device does not distinguish which beam range of the receiving beam from which the signal arrives during the channel sensing process, that is, the channel sensing is performed in all the signal arrival directions.

Optionally, the network device performs omni-directional channel sensing by using the omni-directional receiving antenna in the first time period.

Optionally, the network device performs directional channel sensing in the first time period. The directional channel sensing means that the network device only senses signals in a specific receiving beam range during the channel sensing process, that is, the network device can sense whether other devices occupy a channel in the specific receiving beam range.

Optionally, the network device performs directional channel sensing using the directional receiving antenna in the first time period. Or the network equipment carries out directional channel sensing by utilizing the receiving beamforming technology in a first time period.

Optionally, the network device performs directional channel sensing on the first receiving beam in the first time period, and if the network device senses that the channel is in an idle state, the network device continuously transmits signals of H transmitting beams in the MCOT after the first time period, where the beam range of the first receiving beam includes the beam range of the H transmitting beams, and H is a positive integer greater than or equal to 1.

For example, the network device configures 16 transmission beams, and the network device needs to transmit signals of 3 transmission beams among the 16 transmission beams, where the 3 transmission beams are the 1 st transmission beam, the 2 nd transmission beam, and the 3rd transmission beam among the 16 transmission beams. The network device performs directional channel sensing with respect to the first reception beam in the first time period, and as shown in fig. 6, the beam range of the first reception beam includes the beam range of the 1 st transmission beam, the beam range of the 2 nd transmission beam, and the beam range of the 3rd transmission beam. If the network device detects that the channel in the beam range of the first receiving beam is in an idle state, the network device continuously transmits the signal of the 1 st transmitting beam, the signal of the 2 nd transmitting beam and the signal of the 3rd transmitting beam in the MCOT after the first time period.

It should be noted that the beam range of the network device receiving beam refers to the signal receiving direction range of the network device with higher receiving antenna gain. As shown in fig. 6, taking the beam direction in the horizontal direction as an example, it is assumed that the true east direction is 0 degree, the true north direction is 90 degrees, the true west direction is 180 degrees, and the true south direction is 270 degrees. If the network device receives a signal arriving in the east direction through a receive beam, the receive beam direction is said to be 0 degrees. If the receiving antenna gain of the first receiving beam of the network device is greater than the first predetermined gain value in the range from the receiving beam direction of 0 degree to the receiving beam direction of 60 degrees, the beam range of the first receiving beam is referred to as the receiving beam direction of 0 degree to the receiving beam direction of 60 degrees. Similarly, the beam range of the network device transmitting beam refers to the signal transmission direction range of the network device with higher transmission antenna gain. If the network device transmits a signal to the east direction through the transmission beam, the transmission beam direction is said to be 0 degree. If the transmitting antenna gain of the first transmitting beam of the network device is greater than the second preset gain value in the range from the transmitting beam direction of 10 degrees to the transmitting beam direction of 50 degrees, the beam range of the first transmitting beam is called the transmitting beam direction of 10 degrees to the transmitting beam direction of 50 degrees. Furthermore, the beam range of the first receive beam comprises the beam range of the first transmit beam. For example, the first predetermined gain value is 10dBi and the second predetermined gain value is 10dBi.

Optionally, the network device may have a plurality of channel sensing units, configured to sense channels for a plurality of different receiving beams simultaneously, and when sensing that a channel of one or more receiving beams of the plurality of different receiving beams is idle, the network device may select one receiving beam from the one or more receiving beams, and transmit a signal on one or more transmitting beams within a beam range of the receiving beam. The beam range of the receive beam includes the beam range of the one or more transmit beams.

Optionally, the beam ranges of any two of the multiple different receiving beams may have an overlapped portion in the spatial direction, or may not have an overlapped portion, which is not specifically limited in the embodiment of the present invention.

Optionally, the network device may have multiple channel listening units, configured to perform channel listening for multiple different receiving beams simultaneously, where the beam ranges of any two receiving beams in the multiple receiving beams may have an overlapped portion in the spatial direction, or may not have an overlapped portion, which is not limited herein. When the channel sensing result of one or more of the plurality of receiving beams is a channel idle state, the network device may transmit a signal on one or more transmitting beams. The beam range of any of the one or more transmit beams is included in the beam range of at least one of the one or more receive beams.

S402: if the network device senses that the channel is in an idle state, the network device sequentially sends signals of M sending beams in M time periods after the first time period. The total number of the transmission beams configured by the network equipment is K, and the s-th transmission beam in the K transmission beams corresponds to N _s And the K sending beams correspond to the P time windows. A second time slot of the M time slots is located in a jth time window corresponding to an ith transmission beam, and the jth time window is N corresponding to the ith transmission beam _i One time window of the time windows.

Specifically, if the network device detects that the channel is in the idle state, the network device monitors M times after the first time periodThe segments sequentially transmit signals of M transmit beams. The total number of the transmission beams configured by the network device is K, and the K transmission beams correspond to P time windows. The K transmission beams include the M transmission beams, the M transmission beams include an ith transmission beam of the K transmission beams, and a second time slot of the M time slots is located within a jth time window corresponding to the ith transmission beam. The jth time window is N corresponding to the ith transmission beam _i One time window of the time windows. K is a positive integer greater than or equal to 1, P is a positive integer greater than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer of 1 to P, and M is a positive integer of 1 to K.

It will be appreciated that the s-th of the K transmit beams corresponds to N _s A time window, N _s May be equal to 0 or greater than 0, that is, one of the K transmission beams corresponds to zero, one or more of the P time windows. One of the P time windows corresponds to one of the K transmit beams, the P time windows correspond to S transmit beams of the K transmit beams in total, and S is equal to or less than K. The ith transmission beam of the K transmission beams corresponds to N _i A second time slot is located in the jth time window corresponding to the ith transmitting beam, and the N is _i Each time window includes the jth time window, N _i Greater than or equal to 1. The j-th time window corresponding to the i-th transmission beam indicates that the j-th time window in the P time windows is a time window for transmitting a signal of the i-th transmission beam.

Optionally, the network device sends a signal of an ith transmission beam of the K transmission beams, where the signal may include a DRS signal, an RS signal, and/or an SS block.

Optionally, the beam ranges of any two of the K transmission beams may have an overlapped portion in the spatial direction, or may not have an overlapped portion, which is not specifically limited in this embodiment of the present invention.

Any two adjacent time windows in the P time windows satisfy the following relation: the starting time of the h-th time window in the P time windows is earlier than or equal to the starting time of the h + 1-th time window in the P time windows, the ending time of the h-th time window in the P time windows is later than or equal to the starting time of the h + 1-th time window in the P time windows, and the ending time of the h-th time window in the P time windows is earlier than or equal to the ending time of the h + 1-th time window in the P time windows. Two adjacent time windows in the P time windows may be overlapped or non-overlapped. A possible position relationship between two adjacent time windows of the above P time windows is further described below.

In the embodiment of the present invention, the positional relationship between two adjacent time windows in the P time windows includes, but is not limited to, the following four implementation manners:

(1) In a first positional relationship, a start time of an a-th time window of the P time windows is earlier than a start time of an a + 1-th time window of the P time windows, an end time of an a-th time window of the P time windows is later than a start time of an a + 1-th time window of the P time windows, and an end time of an a-th time window of the P time windows is earlier than an end time of an a + 1-th time window of the P time windows. One possible positional relationship of two adjacent time windows of the above-mentioned P time windows is shown in fig. 7A. One possible positional relationship of the above-mentioned P time windows is shown in fig. 7B.

(2) In a second positional relationship, a start time of a b-th time window of the P time windows is earlier than a start time of a b + 1-th time window of the P time windows, and an end time of the b-th time window of the P time windows is equal to an end time of the b + 1-th time window of the P time windows. One possible positional relationship of two adjacent time windows of the above-mentioned P time windows is shown in fig. 8A. One possible positional relationship of the above-mentioned P time windows is shown in fig. 8B.

(3) In a third positional relationship, a starting time of a c-th time window of the P time windows is equal to a starting time of a c + 1-th time window of the P time windows, and an ending time of the c-th time window of the P time windows is earlier than an ending time of the c + 1-th time window of the P time windows. One possible positional relationship of two adjacent time windows of the above P time windows is shown in fig. 9A. One possible positional relationship of the above-mentioned P time windows is shown in fig. 9B.

(4) In the fourth positional relationship, the ending time of the e-th time window of the P time windows is equal to the starting time of the e + 1-th time window of the P time windows. One possible positional relationship of two adjacent time windows of the above-mentioned P time windows is shown in fig. 10A. One possible positional relationship of the above-mentioned P time windows is shown in fig. 10B.

Two adjacent time windows in the first position relation, the second position relation and the third position relation are overlapped, and two adjacent time windows in the fourth position relation are not overlapped.

In the embodiment of the present invention, if the position relationship of two adjacent time windows in the P time windows is the first position relationship or the fourth position relationship, the durations of the two adjacent time windows may be the same or different. The embodiment of the present invention is not particularly limited thereto.

In an embodiment of the present invention, in addition to the position relationships of the P time windows shown in fig. 7B, fig. 8B, fig. 9B, or fig. 10B, the position relationships of the P time windows may further include a combination of multiple position relationships among the first position relationship, the second position relationship, the third position relationship, and the fourth position relationship. For example, as shown in fig. 11, the positional relationship of the P time windows includes a first positional relationship and a fourth positional relationship.

In addition to the above positional relationship of P time windows as shown in fig. 7B, fig. 8B, fig. 9B, fig. 10B, or fig. 11, the above positional relationship of P time windows may also include, but is not limited to, the following two implementation manners:

(1) In a fifth positional relationship, the a-th to a + U-th consecutive time windows of the P time windows completely overlap. And the start time of the a-th time window is earlier than the start time of the a + U + 1-th time window of the P time windows, the end time of the a-th time window of the P time windows is later than the start time of the a + U + 1-th time window of the P time windows, and the end time of the a-th time window of the P time windows is earlier than the end time of the a + U + 1-th time window of the P time windows. One possible positional relationship of the above-mentioned P time windows is shown in fig. 12. Wherein U is a positive integer greater than or equal to 1.

(2) In a sixth positional relationship, the a-th to a + U-th consecutive time windows among the P time windows completely overlap. And the ending time of the a-th time window is equal to the starting time of the a + U + 1-th time window in the P time windows. One possible positional relationship of the above-mentioned P time windows is shown in fig. 13.

In the embodiment of the present invention, the duration of each of the P time windows is greater than or equal to the minimum duration of a time unit required by the network device to send a bearer useful information.

It will be appreciated that network devices typically need to signal on time-frequency resource elements of a certain size. Taking LTE system as an example, in time domain, the size of the time-frequency resource unit may take symbol length, time slot, subframe, etc. as basic units. For example, in the LTE system, a symbol length with a duration approximately equal to 70 microseconds (us) may be selected as a basic unit of a time unit required by the network device to send a payload information, that is, a minimum duration of the time unit required by the network device to send a payload information, and a start time of a signal carrying the payload information sent by the network device needs to be aligned with a start boundary of a symbol.

It should be noted that the end time of the channel sensing of the network device may not be aligned with the start boundary of the next symbol, in which case the time interval from the end time of the channel sensing to the start boundary of the next symbol is less than the symbol length. The time interval cannot be used for the network device to send a signal carrying useful information, and in order to ensure that the channel is not preempted by other devices performing channel sensing, the network device may transmit a signal not carrying useful information in the time interval, where the signal not carrying useful information is a signal that does not need to be received by the terminal, and the signal is only used for occupying the channel, so as to prevent other devices from sensing that the channel is in an idle state.

In the embodiment of the present invention, the transmission priorities of any two adjacent time windows in the P time windows satisfy the following relationship: the transmission priority of the h-th time window of the P time windows is higher than that of the h + 1-th time window of the P time windows. The transmission priority of the time window corresponding to the w-th time period in the M time periods is higher than that of the time window corresponding to the w + 1-th time period in the M time periods.

Optionally, the network device sends R at most in the above P time windows _i Signal of the i-th transmission beam of the next K transmission beams, R _i Is a positive integer greater than or equal to 1.

Optionally, if a signal of an ith transmission beam of the K transmission beams is a DRS signal, the network device transmits the DRS signal of the ith transmission beam at most 1 time within the P time windows.

Optionally, if the network device detects that the channel is in the idle state, the network device sequentially sends the signals of the M transmission beams in M time periods after the first time period, and the signals of the M transmission beams are not sent before the first time period in the P time windows.

Optionally, if the network device monitors that the channel is in an idle state in the first time period through Category-2LBT, the network device sequentially sends signals of M transmission beams in M time periods after the first time period, and a second time period of the M time periods is located in a jth time window corresponding to an ith transmission beam of the K transmission beams. The M time periods are positioned in the MCOT of Category-2LBT after the first time period, and M is more than or equal to 1 and less than or equal to K. The time interval between the ending time of the first time period and the starting time of the second time period may be equal to zero, or may be smaller than the first time interval, and the duration obtained by adding the signal duration of the ith transmission beam of the K transmission beams is smaller than or equal to MCOT of Category-2LBT. If the signal of the i-th transmission beam among the K transmission beams is a DRS signal, the signal of the i-th transmission beam among the K transmission beams is not transmitted before the first time period within the P time windows.

It is to be understood that, during the first period, the beam range of the receiving beam used by the Category-2LBT channel sensing includes the beam range of the M transmitting beams.

For example, M is equal to 1, the signal duration of the ith transmission beam among the K transmission beams is equal to 0.9ms, the first time interval is equal to 0.1ms, and the MCOT of category-2LBT is equal to 1ms.

Optionally, if the network device monitors that the channel is in an idle state in the first time period through Category-4LBT, the network device sequentially sends signals of M transmission beams in M time periods after the first time period, and a second time period of the M time periods is located in a jth time window corresponding to an ith transmission beam of the K transmission beams. The M time periods are within the MCOT of Category-4LBT after the first time period. M is more than or equal to 1 and less than or equal to K, and the first time interval between the ending time of the first time period and the starting time of the second time period is more than zero and less than the time length of a time unit required by the network equipment to send the bearing useful information. If the signals of the M transmission beams are DRS signals, the signals of the M transmission beams are not transmitted until the first time period within the P time windows.

It is understood that the beam range of the receiving beam used for sensing the first time period Category-4LBT channel should include the beam range of the M transmitting beams.

For example, M is equal to 4, the signal duration of the i-th transmission beam among the K transmission beams is equal to 1ms, the duration of sequentially transmitting the signals of the M transmission beams for the M periods is 4ms, the first time interval is equal to 0.3ms, and MCOT of category-4LBT is equal to 6ms.

Optionally, if the second time period is not only located in a j-th time window corresponding to an i-th transmission beam of the K transmission beams, but also located in an f-th time window corresponding to an e-th transmission beam of the K transmission beams, and a start time of the j-th time window is earlier than or equal to a start time of the f-th time window, and a start-stop time of the j-th time window is earlier than or equal to a stop time of the f-th time window, the network device preferentially transmits a signal of the i-th transmission beam of the K transmission beams in the second time period.

It can be understood that, before the network device transmits the signal of the ith transmission beam of the K transmission beams in the second time period, the network device performs channel sensing for the second reception beam in the first time period, and the beam range of the second reception beam includes the beam range of the ith transmission beam.

For example, the total number of transmission beams configured by the network device is 5,5 transmission beams correspond to 8 time windows, and signals transmitted by the network device in the 5 transmission beams are all DRS signals. As shown in fig. 14A, the network device senses that the channel is in an idle state through Category-2LBT for a first period of time before a DRS signal can be transmitted. The channel occupying time period after the first time period is located in the 2 nd time window and the 3rd time window of the 8 time windows, and the 2 nd time window and the 3rd time window respectively correspond to the 2 nd transmission beam and the 3rd transmission beam of the 5 transmission beams. As shown in fig. 14A, if the DRS signal of the 2 nd transmission beam is not transmitted in the third period, the network device transmits the DRS signal of the 2 nd transmission beam in the channel occupying period. It is understood that the beam range of the receiving beam sensed by the network device during the Category-2LBT channel during the first time period in this case includes the beam range of the 2 nd transmitting beam described above. If the DRS signal of the 2 nd transmission beam is transmitted in the third time period, the network device transmits the DRS signal of the 3rd transmission beam in the channel occupying time period. It is understood that the beam range of the reception beam sensed by the network device on the Category-2LBT channel during the first time period in this case includes the beam range of the above-mentioned 3rd transmission beam. If the DRS signals of the 2 nd transmission beam and the 3rd transmission beam are transmitted in the third time period, the network device does not transmit the DRS signals in the channel occupying time period. The third time period mentioned above represents a time period before the first time period within 8 time windows.

For example, the total number of the transmission beams configured by the network device is 5,5 transmission beams correspond to 8 time windows, and signals transmitted by the network device in the 5 transmission beams are all DRS signals. As shown in fig. 14B, the network device senses that the channel is in an idle state through Category-4LBT in a first time period. The channel occupation time period after the first time period is located in the 2 nd, 3rd and 4 th time windows of the 8 time windows, and the 2 nd, 3rd and 4 th time windows respectively correspond to the 2 nd, 3rd and 4 th transmission beams of the 5 transmission beams. As shown in fig. 14B, if the DRS signals of the 2 nd transmission beam, the 3rd transmission beam, and the 4 th transmission beam are not transmitted in the fourth time period, the network device transmits the DRS signals of the 2 nd transmission beam, the 3rd transmission beam, and the 4 th transmission beam in three time periods Δ t1, Δ t2, and Δ t3 in the channel occupying time period, respectively. It is understood that the beam range of the reception beam sensed by the network device on the Category-4LBT channel during the first time period in this case includes the beam ranges of the 2 nd transmission beam, the 3rd transmission beam, and the 4 th transmission beam described above. If the DRS signal of the 2 nd transmission beam is transmitted in the fourth time period, the network device transmits the DRS signals of the 3rd transmission beam and the 4 th transmission beam only in two time periods, i.e., Δ t1 and Δ t 3. It is understood that the beam range of the reception beam sensed by the network device on the Category-4LBT channel during the first time period in this case includes the beam ranges of the above-mentioned 3rd transmission beam and 4 th transmission beam. If the DRS signals of the 2 nd transmission beam and the 3rd transmission beam are transmitted in the fourth time period, the network device transmits the DRS signal of the 4 th transmission beam only in the Δ t3 time period. It can be understood that the beam range of the receiving beam sensed by the network device in the Category-4LBT channel in the first time period includes the beam range of the 4 th transmitting beam. The fourth time period represents a time period before the first time period within 8 time windows.

For example, the total number of the transmission beams configured by the network device is 5,5 transmission beams correspond to 8 time windows, signals transmitted by the network device in the 5 transmission beams are DRS signals, and the duration of the DRS signals is 1ms. As shown in fig. 14C, a duration of each of the 8 time windows is equal to a duration of the DRS signal, a starting point of each time window is a transmittable point of the DRS signal, and a 3rd time window of the 8 time windows corresponds to a 3rd transmission beam of the 5 transmission beams. And the network equipment carries out channel sensing through Category-2LBT in a first time period before the 3rd time window, wherein the MCOT of the Category-2LBT is 1ms. As shown in fig. 14C, if the network device senses that the channel is in the idle state and does not transmit the DRS signal of the 3rd transmission beam in the fifth time period, the network device transmits the DRS signal of the 3rd transmission beam in the 3rd time window. And if the network equipment detects that the channel is not in an idle state, not transmitting the DRS signal in the 3rd time window, and carrying out channel detection again in a first time period before the 4 th time window in the 8 time windows. It is understood that the beam range of the receiving beam sensed by the Category-2LBT channel performed by the network device in the first time period includes the beam range of the 3rd transmitting beam. The fifth time period mentioned above represents a time period before the first time period within 8 time windows.

Optionally, the P time windows are time windows of a first window, a start time of the P time windows is the same as the start time of the first window, an end time of the P time windows is the same as the end time of the first window, and the first window is one window in the first window set. As shown in fig. 15, the time interval between the start time of the g-th window in the first window set and the start time of the g + 1-th window in the first window set is a first period.

Optionally, the time lengths of two adjacent windows in the first window set may be the same or different. The embodiment of the present invention is not particularly limited thereto.

Optionally, the number of time windows in two adjacent windows in the first window set may be the same or different. The embodiment of the present invention is not particularly limited thereto.

Optionally, the first window is a DMTC window.

The time lengths of any two windows in the first window set can be the same or different. The number of time windows in any two windows in the first window set may be the same or different. The embodiment of the present invention is not particularly limited to this.

Optionally, a corresponding relationship between a time window in the g-th window in the first window set and the K transmission beams is a first corresponding relationship, a corresponding relationship between a time window in the g + 1-th window in the first window set and the K transmission beams is a second corresponding relationship, and the first corresponding relationship and the second corresponding relationship may be the same or different.

Optionally, the first corresponding relationship and the second corresponding relationship are different, and the first corresponding relationship and the second corresponding relationship satisfy a certain rule. The following describes further possible forms of this rule.

In the embodiment of the present invention, the rule satisfied by the first corresponding relationship and the second corresponding relationship includes, but is not limited to, the following two rules:

(1) First, if z is equal to or less than P _g+1 X, the transmission beam corresponding to the z-th time window in the g-th window in the first window set is the same as the transmission beam corresponding to the z + x-th time window in the g + 1-th window in the first window set, P _g+1 The number of time windows in the g +1 th window in the first window set is shown, and x is a positive integer smaller than K; if z is greater than P _g+1 -x and P or less _g+1 The positive integer of (2), then the transmission beam corresponding to the z-th time window in the g-th window in the first window set and the z + x-P in the g + 1-th window in the first window set _g+1 The corresponding transmission beams of the time windows are the same.

(2) Second law, if P _g+1 If +1-z is greater than zero, the transmission beam corresponding to the z-th time window in the g-th window in the first window set and the P-th time window in the g + 1-th window in the first window set _g+1 The corresponding transmitting beams of +1-z time windows are the same. If P _g+1 And +1-z is less than or equal to zero, the transmission beam corresponding to the z-th time window in the g-th window in the first window set and the g + 1-th window in the first window setP (c) of _g+1 * The corresponding transmitting beams of (t + 1) +1-z time windows are the same. t is such that P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Positive integer of (1), P _g The number of time windows in the g-th window in the first window set is shown.

For example, the total number of transmission beams configured by the network device is 3, as shown in fig. 16A, the number of time windows in the g-th window in the first window set is 6, and the number of time windows in the g + 1-th window in the first window set is 5. The first corresponding relation and the second corresponding relation satisfy the first rule, and x takes a value of 2. Fig. 16A is a schematic diagram of a first corresponding relationship and a second corresponding relationship.

For example, the total number of the transmission beams configured by the network device is 3, as shown in fig. 16B, the number of time windows in the g-th window in the first window set is 6, and the number of time windows in the g + 1-th window in the first window set is 5. The first correspondence and the second correspondence satisfy the second rule. Fig. 16B is a schematic diagram of a first corresponding relationship and a second corresponding relationship.

Optionally, the first window set uses consecutive F windows as a subset, the subsets of the first window set do not overlap, all time windows in each subset of the first window set correspond to I transmit beams, and I is equal to K. The r-th subset and the r + 1-th subset in the first window set are adjacent subsets, and no window exists between the last window of the r-th subset and the first window of the r + 1-th subset. The time window of each subset in the first window set has a corresponding relationship with the K transmission beams, and the time windows of any two adjacent subsets in the first window set have the same corresponding relationship with the K transmission beams.

For example, the total number of transmission beams configured by the network device is 6, as shown in fig. 17, 2 consecutive windows in the first window set are taken as a subset, the g-th window and the g + 1-th window in the first window set constitute a first subset, the g-2 nd window and the g-1 st window in the first window set constitute a second subset, and the first subset and the second subset are adjacent subsets. Fig. 17 is a possible correspondence of time windows and 6 transmit beams in each subset of the first set of windows.

Optionally, before the network device sequentially transmits the signals of the M transmission beams in M time periods after the first time period, the method further includes: if the network device detects that the channel is in an idle state in the first time period, the network device determines the M transmission beams from the K transmission beams according to configuration information, wherein the configuration information includes a corresponding relationship between the K transmission beams and the P time windows.

It can be understood that the configuration information may include information such as a period of the first window set, a start position of each window in the first window set, and an end position of each window in the first window set, and may further include the number of time windows of each window in the first window set, a start position of each time window in each window, an end position of each time window in each window, and a correspondence relationship between each time window in each window and the K transmission beams.

Optionally, the configuration information has an update rule. For example, the configuration information includes a valid time notification information, that is, the configuration information is valid only in a valid time period, and after the valid time period, the network device updates the configuration information in the transmission signal.

It can be understood that the network device obtains the positional relationship of the P time windows and the corresponding relationship between the P time windows and the K transmission beams according to the configuration information. If the network device detects that the channel is in an idle state in the first time period, the network device obtains the Y time windows in which the Y time period of the M time periods is located and the transmission beams corresponding to the Y time windows according to the configuration information. The network device confirms the transmission beam of the signal transmitted in the Y time period according to the transmission priority of the Y time windows.

For example, the network device may configure a total number of transmission beams of 5,5 transmission beams corresponding to 8 time windows. The network device obtains the position relationship of the 8 time windows and the corresponding relationship between the 8 time windows and the 5 transmission beams according to the configuration information. The network device transmits a signal for a second time period after the first time period. As shown in fig. 18, the second time period is located in an overlapping time period of a 1 st time window, a 2 nd time window and a 3rd time window of the 8 time windows, and the 1 st time window, the 2 nd time window and the 3rd time window respectively correspond to a 2 nd transmission beam, a 3rd transmission beam and a 2 nd transmission beam of the 5 transmission beams. The 1 st time window has a higher transmission priority than the 2 nd time window, and the 2 nd time window has a higher transmission priority than the 3rd time window. Therefore, the terminal confirms that the transmission beam of the signal transmitted in the second period is the 2 nd transmission beam corresponding to the 1 st time window based on the configuration information and the transmission priority of each time window.

Optionally, the signal of the ith transmission beam of the K transmission beams transmitted by the network device each time includes configuration information.

Optionally, the signal of the ith transmission beam of the K transmission beams transmitted by the network device periodically includes configuration information. For example, the signal of the ith transmission beam transmitted by the network device includes the configuration information once every three times.

Optionally, a signal of an ith transmission beam of the K transmission beams sent by the network device is a DRS signal, and the DRS signal includes configuration information. The configuration information may be carried in a Physical Broadcast Channel (PBCH) portion of the DRS signal. The configuration information may also be carried in a Physical Downlink Control Channel (PDCCH) portion of the DRS signal. The configuration information may also be carried in a Physical Downlink Shared Channel (PDSCH) portion of the DRS signal. The configuration information may also be carried in the PBCH, PDCCH, and/or PDSCH in the DRS signal. The embodiment of the present invention is not particularly limited thereto.

Optionally, the network device sends, in a second time period, a signal of an ith transmission beam of the K transmission beams, where the signal includes a transmission beam number identifier of the signal. The transmission beam number identification of the signal is used for representing that the signal corresponds to the ith transmission beam in the K transmission beams. The following describes a possible coding method for identifying the transmission beam number of the signal.

In the embodiment of the present invention, the coding method of the transmission beam number identifier of the signal includes, but is not limited to, the following two methods:

(1) In a first encoding mode, the network device represents the transmitting beam number identifier of the signal of the K transmitting beams by n-bit binary information, where n is less than or equal to log ₂ The largest positive integer of P. In the first encoding scheme, the transmission beam number of the signal of each transmission beam in the P time windows is fixed.

(2) In a second encoding method, a second time slot is located in an overlapping time slot of V time windows of the P time windows, the V time windows correspond to W transmit beams of the K transmit beams, V is greater than or equal to 1 and less than or equal to P, and W is greater than or equal to 1 and less than or equal to K. If V is equal to 1 or V is greater than 1 and W is equal to 1, that is, the second time period corresponds to only one transmission beam, that is, the ith transmission beam in the K transmission beams, the network device does not need to indicate the transmission beam number identifier of the signal, and the terminal can know that the second time period corresponds to the ith transmission beam in the K transmission beams according to the configuration information. If V is greater than 1 and W is greater than 1, that is, the V time windows include the jth time window of the P time windows, and the W transmission beams include the ith transmission beam of the K transmission beams, the network device indicates the transmission beam number identifiers of the signals of the W transmission beams through m-bit binary information, where m is log or less ₂ The largest positive integer of W. In the second coding scheme, the transmission beam number of the signal for each transmission beam in the P time windows is variable. The second encoding scheme is applicable to the following cases: the signals of the ith transmission beam of the K transmission beams sent by the network device all contain configuration information or periodically contain configuration information, the receiving end device can obtain the V time windows corresponding to the second time period and the W transmission beams corresponding to the V time windows through the configuration information, and when V or W is equal to 1, the terminal can determine that the signals of the ith transmission beam of the K transmission beams all contain configuration information or periodically contain configuration informationAnd when V is greater than 1 and W is greater than 1, the terminal determines the transmission beam of the signal according to the configuration information and the transmission beam number identification of the signal.

For example, the first coding scheme is used for the transmission beam number identification of the signal. The network device configures 8 transmission beams, and a transmission beam number of a signal of a 1 st transmission beam among the 8 transmission beams is identified as 000,8 transmission beams, and a transmission beam number of a signal of a 7 th transmission beam among the 8 transmission beams is identified as 110.

For example, the network device configures 8 transmission beams, where 8 transmission beams correspond to 10 time windows. And the network equipment transmits a signal of a 3rd transmission beam in the 8 transmission beams in a second time period, wherein the signal comprises a transmission beam number identifier and configuration information of the signal, and the transmission beam number identifier of the signal adopts a second coding mode. If the second time period is only located in the 6 th time window of the 10 time windows, the network device does not need to indicate the transmission beam number identifier of the signal. If the second time period is within the overlapping time period of 3 time windows of the 10 time windows, the 3 time windows correspond to 2 transmission beams of the 8 transmission beams, that is, the 2 nd transmission beam of the 8 transmission beams and the 4 th transmission beam of the 8 transmission beams. The network device indicates, by using 1-bit binary information, a transmission beam number identifier of the signal of the 2 nd transmission beam, where the transmission beam number identifier of the signal of the 2 nd transmission beam is 0, and the transmission beam number identifier of the signal of the 4 th transmission beam is 1. And the receiving end device learns that the second time period is located in the overlapping time period of 3 time windows in the 10 time windows and 2 sending beams corresponding to the 3 time windows according to the configuration information. If the receiving end receives the signal with the transmission beam number mark 1, the receiving end judges that the received signal is the signal of the 4 th transmission beam according to the sequence of the 2 transmission beams.

Optionally, a signal of an ith transmission beam of the K transmission beams sent by the network device includes configuration information, and the configuration information may carry a transmission beam number identifier of the signal.

Optionally, the configuration information of the signal is preferentially carried on the PDSCH.

It can be understood that this is because the amount of information of the configuration information is large, more transmission resources are required to transmit the configuration information, and more transmission resources are required in the PDSCH compared to the PBCH and the PDCCH.

Optionally, the transmission beam number identifier of the signal is preferentially carried on the PBCH.

It can be appreciated that this is due to the smaller amount of information identified by the transmit beam number of the signal, while the transmission resources in PBCH are relatively less and the reception complexity of PBCH is relatively smaller compared to PDSCH and PDCCH. Therefore, if the terminal needs to receive the signal sent by the network device and acquire the sending beam number identifier of the signal, the network device carries the sending beam number identifier of the signal on the PBCH, and the complexity of the process of implementing the receiving signal and acquiring the sending beam number identifier by the terminal can be reduced.

S403: the terminal determines N corresponding to the ith transmission beam in the K transmission beams _i The position of each time window in the P time windows.

Optionally, the terminal determines positions of a time windows corresponding to J transmission beams of the K transmission beams in the P time windows, where the a time windows include N _i A time window. The J transmit beams include one or more adjacent transmit beams of the ith transmit beam and the ith transmit beam.

Optionally, the terminal determines N corresponding to the ith transmission beam of the K transmission beams _i Before the position of each time window in the P time windows, the method further comprises the following steps: the terminal receives a signal of an ith transmission beam in the K transmission beams transmitted by the network equipment at a first moment, wherein the signal comprises configuration information and a transmission beam number identifier of the signal; the terminal analyzes the signal and acquires configuration information and a sending beam number identifier of the signal; and the terminal acquires that the transmission beam of the signal is the ith transmission beam in the K transmission beams according to the transmission beam number identification of the signal. The first time is earlier than the starting time of the P time windows, and the configuration information comprises the P timesWindow and the above K transmission beams.

For example, the total number of the transmission beams configured by the network device is 8, and the terminal receives, at the first time, a DRS signal of the 6 th transmission beam of the 8 transmission beams transmitted by the network device, where the DRS signal includes configuration information and a transmission beam number identifier of the signal; the terminal analyzes the PBCH, the PDCCH and/or the PDSCH in the DRS signal, and acquires configuration information and a sending beam number identifier of the signal; and the terminal learns that the transmission beam of the signal is the 6 th transmission beam in the 8 transmission beams according to the transmission beam number identification of the signal.

Optionally, the signal received by the terminal at the first time includes a transmission beam number identifier of the signal, and the terminal obtains the transmission beam of the signal according to the transmission beam number identifier of the signal.

Optionally, after the first time, the terminal determines that the N time windows exist in the P time windows according to the configuration information _i Each time window corresponds to the ith transmission beam in the K transmission beams, and N corresponding to the ith transmission beam in the K transmission beams is determined according to configuration information _i The position of each time window in the P time windows.

Optionally, after the first time, the terminal determines that the a time windows corresponding to the J transmission beams exist in the P time windows according to the configuration information, and determines positions of the a time windows corresponding to the J transmission beams in the P time windows according to the configuration information.

It can be understood that, before acquiring the configuration information, in order to receive a signal sent by the network device at a first time, the terminal needs to switch among multiple carrier frequency points where the network device may provide communication services, and continuously attempt to receive the signal carrying the configuration information at the switched carrier frequency point. After receiving the signal carrying the configuration information at the first moment, the terminal obtains the configuration information and the sending beam of the signal through signal analysis. Since the configuration information includes the positional relationship of each window in the first window set, the positional relationship of each time window in each window, and the correspondence between each time window in each window and the K transmission beams, the terminal can determine, after the first time, the position of the time window corresponding to the transmission beam required by the terminal in each window according to the configuration information.

S404: in the above-mentioned N _i And in each time window, the terminal detects and receives the signal of the ith transmission beam in the K transmission beams transmitted by the network equipment.

Optionally, in the a time windows, the terminal detects and receives signals of J transmission beams of the K transmission beams transmitted by the network device, where the J transmission beams include the ith transmission beam and one or more adjacent transmission beams of the ith transmission beam.

Optionally, in the above-mentioned N _i In each time window, the terminal detects and receives the signal of the ith transmission beam in the K transmission beams transmitted by the network device, and performs channel quality measurement.

Optionally, in the a time windows, the terminal detects and receives the signals of the J transmit beams sent by the network device, and performs channel quality measurement.

Optionally, in the P time windows, the terminal only needs to detect and receive the signal of the ith transmission beam of the K transmission beams sent by the network device at most once.

It is understood that in the above N _i At a second time in the time window, if the terminal detects and receives the signal of the ith transmission beam in the K transmission beams transmitted by the network equipment, the terminal detects and receives the signal of the ith transmission beam in the N transmission beams _i And after the second moment in the time window, the terminal stops detecting the signal of the ith transmission beam transmitted by the network equipment.

Optionally, in the P time windows, the terminal only needs to detect and receive the signal of the transmit beam of the J transmit beams once.

It is understood that in the above N _i At the second time in the time window, if the terminal detects and receives the signal of the transmission beam in the last J transmission beams transmitted by the network equipment, the signal is transmitted in the N times _i The terminal stops detecting after the second moment in the time windowThe network device transmits the signals of the J transmission beams.

Optionally, within the P time windows, the terminal only needs to detect and receive a signal of any one of the J transmission beams at most once.

It is to be understood that, at the third time within the a time windows, if the terminal detects and receives a signal of one transmission beam of the J transmission beams transmitted by the network device, for example, a signal of an i +1 th transmission beam of the K transmission beams, and the J transmission beams include the i +1 th transmission beam, the terminal stops detecting the i +1 th transmission beam signal transmitted by the network device after the third time within the a time windows. But the terminal will continue to detect and receive signals of other transmission beams of the J transmission beams transmitted by the network device, for example, the signal of the ith transmission beam of the K transmission beams.

Optionally, in the P time windows, the terminal may detect and receive the signal of the ith transmission beam of the K transmission beams sent by the network device multiple times.

It is understood that in the above N _i At a second time in the time window, if the terminal detects and receives the signal of the ith transmission beam in the K transmission beams transmitted by the network equipment, the terminal is in the N _i And continuously detecting and receiving the signal of the ith transmitting beam after the second time in the time window.

Optionally, in the P time windows, the terminal may detect and receive signals of the J transmission beams sent by the network device multiple times.

It can be understood that, at the third time within the a time windows, if the terminal detects and receives a signal of one of the J transmission beams transmitted by the network device, for example, a signal of the (i + 1) th transmission beam among the K transmission beams, the terminal continues to detect and receive the (i + 1) th transmission beam signal transmitted by the network device after the third time within the a time windows.

Optionally, the terminal is in the above N _i A time windowThe terminal obtains the signal as the signal of the ith transmission beam in the K transmission beams according to the transmission beam number identifier of the signal.

For example, the number of beams configured by the network device is 8, and the terminal is in the above N _i And the transmission beam number identifier of the signal received in each time window is 111, and the coding mode of the transmission beam number identifier of the signal is the first coding mode, so that the terminal knows that the signal is the 8 th transmission beam signal in the 8 transmission beams according to the transmission beam number identifier of the signal.

Optionally, the terminal is in the above N _i And receiving a signal sent by the network equipment in a second time period in each time window, wherein the signal comprises a sending beam number identifier and configuration information of the signal, and the coding mode of the sending beam number identifier of the signal is a second coding mode. And the terminal acquires V time windows corresponding to the second time period and W sending beams corresponding to the V time windows according to the configuration information. Then, the terminal knows the transmission beam of the signal according to the W transmission beams and the transmission beam number identifier of the signal.

It is to be understood that the above configuration information may be acquired by the terminal before the second time period, that is, the terminal receives the signal containing the configuration information sent by the network device before the second time period. The configuration information may also be obtained by the terminal in the second time period, that is, the signal sent by the network device and received by the terminal in the second time period includes the configuration information.

For example, the number of the transmission beams configured by the network device is 8, and the terminal learns that the second time period is located in the overlapping time period of 3 time windows according to the configuration information, and also learns that the 3 time windows correspond to 3 transmission beams, that is, the 2 nd transmission beam, the 4 th transmission beam, and the 5th transmission beam among the 8 transmission beams. The coding mode of the transmission beam number identifier of the signal is the second coding mode. If the terminal is in the aboveN _i If the transmission beam number of the signal received in the second time period in each time window is identified as 00, the signal is the signal of the 2 nd transmission beam. If the terminal is at the above N _i If the transmission beam number of the signal received in the second time period in each time window is identified as 01, the signal is the signal of the 4 th transmission beam. If the terminal is in the above N _i If the transmission beam number of the signal received in the second time period in each time window is 10, the signal is the signal of the 5th transmission beam.

It can be understood that N is as described above _i The time windows are located in one window of the first set of windows. In different windows of the first window set, the terminal may detect and receive a signal of an ith transmission beam of the K transmission beams, and whether the terminal detects and receives the signal of the ith transmission beam in one window may not affect the detection and reception of the signal of the ith transmission beam in another window by the terminal.

The method provided by the embodiment of the invention is implemented, the network equipment is configured with K sending wave beams, and the s-th sending wave beam in the K sending wave beams corresponds to N _s A time window, where K transmit beams correspond to P time windows, N _s Is a positive integer less than P. After the network equipment monitors that the channel is in an idle state, the network equipment sequentially sends M signals of sending beams in M time periods within the occupied time of the channel. Each of the M time segments corresponds to one of the P time windows. The network equipment is only in N of the P time windows _i Transmitting the signal of the ith transmission beam in a time window, N _i Is a positive integer of 1 or more and less than P. Therefore, the terminal only needs to determine the position of the time window corresponding to the required transmitting beam in the P time windows, and only carries out signal detection and reception in the time window corresponding to the required transmitting beam of the terminal for channel quality measurement.

Referring to fig. 19, fig. 19 is a schematic structural diagram of another network device according to an embodiment of the present invention. As shown in fig. 19, the network device 500 may include: a listening unit 501 and a sending unit 502. Wherein:

the listening unit 501 is configured to perform channel listening in a first time period.

A transmitting unit 502, configured to sequentially transmit signals of M transmission beams in M time periods after the first time period if the sensing unit 501 senses that the channel is in the idle state. The total number of the transmission beams configured by the network equipment is K, and the s-th transmission beam in the K transmission beams corresponds to N _s And the K sending beams correspond to P time windows. The K transmission beams include the M transmission beams, the M transmission beams include an ith transmission beam of the K transmission beams, and a second time slot of the M time slots is located within a jth time window corresponding to the ith transmission beam. The jth time window is N corresponding to the ith transmission beam _i One time window of the time windows. K is a positive integer greater than or equal to 1, P is a positive integer greater than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer greater than or equal to 1 and less than P, and M is a positive integer greater than or equal to 1 and less than or equal to K.

Optionally, before the sending unit 502 sequentially sends the signals of the M sending beams in M time periods after the first time period, the network device further includes a first determining unit. A first determining unit, configured to determine the M transmit beams from the K transmit beams according to configuration information if the channel is detected to be in an idle state, where the configuration information includes a correspondence between the K transmit beams and the P time windows.

Optionally, the first time period and the second time period are adjacent.

Optionally, the time interval between the first time period and the earliest time period of the M time periods is greater than zero and less than the duration of the time unit required by the sending unit 502 to send a bearer of useful information.

Optionally, a start time of an a-th time window of the P time windows is earlier than a start time of an a + 1-th time window of the P time windows, an end time of the a-th time window of the P time windows is later than the start time of the a + 1-th time window of the P time windows, and the end time of the a-th time window of the P time windows is earlier than the end time of the a + 1-th time window of the P time windows.

Optionally, a start time of a b-th time window of the P time windows is earlier than a start time of a b + 1-th time window of the P time windows, and an end time of the b-th time window of the P time windows is equal to an end time of the b + 1-th time window of the P time windows.

Optionally, a starting time of a c-th time window of the P time windows is equal to a starting time of a c + 1-th time window of the P time windows, and an ending time of the c-th time window of the P time windows is earlier than an ending time of the c + 1-th time window of the P time windows.

Alternatively, if the second time slot is located in the jth time window and the second time slot is located in the f-th time window of the P time windows, the start time of the jth time window is earlier than or equal to the start time of the f-th time window, and the start-stop time of the jth time window is earlier than or equal to the stop time of the f-th time window, then transmitting section 502 preferentially transmits the signal of the i-th transmission beam in the second time slot.

Optionally, the ending time of the e-th time window in the P time windows is equal to the starting time of the e + 1-th time window in the P time windows.

Optionally, any consecutive K time windows in the P time windows correspond to the K transmit beams one to one.

Optionally, the P time windows are time windows of a first window, a start time of the P time windows is the same as the start time of the first window, an end time of the P time windows is the same as the end time of the first window, the first window is one window in a first window set, and a time interval between the start time of a g-th window in the first window set and the start time of a g + 1-th window in the first window set is a first period.

Optionally, a correspondence between the time window in the g-th window and the K transmission beams is a first correspondence, a correspondence between the time window in the g + 1-th window and the K transmission beams is a second correspondence, and the first correspondence is the same as the second correspondence.

Optionally, a correspondence between the time window in the g-th window and the K transmission beams is a first correspondence, a correspondence between the time window in the g + 1-th window and the K transmission beams is a second correspondence, and the first correspondence is different from the second correspondence.

Optionally, when P is greater than or equal to K, any consecutive K time windows in the P time windows correspond to the K transmit beams one to one.

Optionally, the first corresponding relationship and the second corresponding relationship satisfy the first rule. The first rule is that if z is less than or equal to P _g+1 Positive integer of x, thenThe transmission beam corresponding to the z-th time window in the g windows is the same as the transmission beam corresponding to the z + x-th time window in the g + 1-th window, P _g+1 The number of the time windows in the g +1 th window is, and x is a positive integer less than K; if z is greater than P _g+1 -x and is equal to or less than P _g+1 The positive integer of (2), the transmission beam corresponding to the z-th time window in the g-th window and the z + x-P in the g + 1-th window _g+1 The transmission beams corresponding to the time windows are the same.

Optionally, the first corresponding relationship and the second corresponding relationship satisfy the first rule. The first rule is if P _g+1 If +1-z is greater than zero, the transmitting beam corresponding to the z-th time window in the g-th window is corresponding to the P-th time window in the g + 1-th window _g+1 The corresponding transmitting wave beams of +1-z time windows are the same; if P _g+1 If +1-z is less than or equal to zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 * The corresponding transmitting beams of (t + 1) +1-z time windows are the same. t is such that P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Positive integer of (1), P _g The number of time windows in the g-th window in the first window set is counted.

Optionally, the signal of the ith transmission beam transmitted by the transmitting unit 502 includes a DRS signal.

Optionally, the first window is a DMTC window.

Referring to fig. 20, fig. 20 is a schematic structural diagram of another terminal device according to an embodiment of the present invention. As shown in fig. 20, the terminal apparatus 600 may include: a second determination unit 601 and a detection unit 602. Wherein:

a second determining unit 601 for determining N corresponding to the ith transmission beam of the K transmission beams _i The position of each time window in P time windows, the s-th transmission beam in the K transmission beams configured by the network equipment corresponds to N _s A time window, the K transmission beams corresponding to the P time windows, N _s Is a positive integer less than P, K is a positive integer greater than or equal to 1, P is a positive integer greater than or equal to 1, N _i Is greater than or equal to1 and less than a positive integer of P.

A detection unit 602 for detecting the signal at N _i And detecting and receiving the signal of the ith transmission beam in each time window.

Optionally, the second determining unit 601 determines N corresponding to the ith transmission beam of the K transmission beams _i The positions of the time windows in the P time windows comprise: a second determining unit 601 determines the positions of a time windows corresponding to the ith transmission beam and one or more adjacent transmission beams among the K transmission beams in the P time windows, wherein the a time windows include the N _i A time window.

Optionally, the detecting unit 602 is at N above _i Detecting and receiving signals of the ith transmission beam in each time window, comprising: the detection unit 602 detects and receives the signal of the ith transmission beam in the a time windows.

Optionally, the second determining unit 601 determines N corresponding to the ith transmission beam of the K transmission beams _i The terminal device further comprises a receiving unit before the position of the time window in the P time windows. The receiving unit is configured to receive, at a first time, a signal of the ith transmission beam transmitted by the network device. The signal includes configuration information, the first time is earlier than the starting time of the P time windows, and the configuration information includes a corresponding relationship between the P time windows and the K transmission beams. The second determining unit 601 determines N corresponding to the ith transmission beam among the K transmission beams _i The positions of the time windows in the P time windows comprise: the second determining unit 601 determines the N corresponding to the ith transmission beam of the K transmission beams according to the configuration information _i The position of each time window in the P time windows.

Optionally, the first corresponding relationship and the second corresponding relationship satisfyA first law. The first rule is that if z is less than or equal to P _g+1 -x is a positive integer, then the transmission beam corresponding to the z-th time window in the g-th window is the same as the transmission beam corresponding to the z + x-th time window in the g + 1-th window, P _g+1 The number of the time windows in the g +1 th window is, and x is a positive integer less than K; if z is greater than P _g+1 -x and P or less _g+1 The positive integer of (2), the transmission beam corresponding to the z-th time window in the g-th window and the z + x-P in the g + 1-th window _g+1 The transmission beams corresponding to the time windows are the same.

Optionally, the first corresponding relationship and the second corresponding relationship satisfy the first rule. The first rule is if P _g+1 If +1-z is greater than zero, the transmitting beam corresponding to the z-th time window in the g-th window is corresponding to the P-th time window in the g + 1-th window _g+1 The corresponding transmitting wave beams of +1-z time windows are the same; if P _g+1 +1-z is less than or equal to zero, the transmitting beam corresponding to the z-th time window in the g-th window and the P-th time window in the g + 1-th window _g+1 * The corresponding transmitting beams of (t + 1) +1-z time windows are the same. t is such that P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Positive integer of (1), P _g The number of time windows in the g-th window in the first window set is shown.

Optionally, the signal of the ith transmission beam sent by the network device includes a DRS signal.

Optionally, the first window is a DMTC window.

Referring to fig. 21, fig. 21 is a schematic diagram illustrating a structure of a communication chip according to the present invention. As shown in fig. 21, the communication chip 700 may include: a processor 701, and one or more interfaces 702 coupled to the processor 701. Wherein:

the processor 701 may be used to read and execute computer readable instructions. In particular implementations, the processor 701 may mainly include a controller, an operator, and a register. The controller is mainly responsible for instruction decoding and sending out control signals for operations corresponding to the instructions. The arithmetic unit is mainly responsible for executing fixed-point or floating-point arithmetic operation, shift operation, logic operation and the like, and can also execute address operation and conversion. The register is mainly responsible for storing register operands, intermediate operation results and the like temporarily stored in the instruction execution process. In a specific implementation, the hardware architecture of the processor 701 may be an Application Specific Integrated Circuits (ASIC) architecture, an MIPS architecture, an ARM architecture, or an NP architecture. The processor 701 may be single core or multi-core.

The interface 702 may be used to input data to be processed to the processor 701, and may output a processing result of the processor 701 to the outside. In a specific implementation, the interface 702 may be a general purpose input/output (GPIO) interface, and may be connected to a plurality of peripheral devices (e.g., a display (LCD), a camera (camara), a Radio Frequency (RF) module, etc.). The interface 702 is coupled to the processor 701 by a bus 703.

In the present invention, the processor 701 may be configured to call, from the memory, an implementation program of the signal transmission method provided by one or more embodiments of the present invention on the communication device side, and execute instructions included in the implementation program. The interface 702 may be used to output the results of the execution by the processor 701. In the present invention, the interface 702 may be specifically configured to output the resource allocation result of the processor 701. For the signal transmission method provided in one or more embodiments of the present invention, reference may be made to the foregoing embodiments, and details are not repeated here.

It should be noted that the functions corresponding to the processor 701 and the interface 702 may be implemented by hardware design, software design, or a combination of hardware and software, which is not limited herein.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, erasable Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc read only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in a transceiver or relay device. Of course, the processor and the storage medium may reside as discrete components in a radio access network device or a terminal device.

Those skilled in the art will recognize that the functionality described in embodiments of the invention may be implemented in hardware, software, firmware, or any combination thereof, in one or more of the examples described above. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above embodiments are only intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the scope of the embodiments of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present invention should be included in the scope of the embodiments of the present invention.

Claims

1. A signal transmission method, comprising:

the network equipment carries out channel interception in a first time period;

if the network device monitors that the channel is in an idle state, the network device sequentially sends signals of M sending beams in M time periods after the first time period, and the sending beams configured by the network deviceThe total number is K, and the s-th transmission beam in the K transmission beams corresponds to N _s A plurality of time windows, the K transmit beams corresponding to P time windows, the K transmit beams including the M transmit beams, the M transmit beams including an ith transmit beam of the K transmit beams, a second time period of the M time periods being within a jth time window corresponding to the ith transmit beam, the jth time window being N corresponding to the ith transmit beam _i One time window in the P time windows, wherein any two adjacent time windows in the P time windows satisfy the relationship: the starting time of the h-th time window in the P time windows is earlier than or equal to the starting time of the h + 1-th time window in the P time windows, K is a positive integer which is more than or equal to 1, P is a positive integer which is more than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer of 1 to P, M is a positive integer of 1 to K, s is an integer of 1 to K, i is an integer of 1 to K, j is an integer of 1 to N _i H is an integer greater than or equal to 1 and less than or equal to P.

2. The method of claim 1, wherein before the network device sequentially transmits signals of M transmission beams in M time periods after the first time period, the method further comprises:

if the channel is monitored to be in an idle state, the network equipment determines the M sending beams from the K sending beams according to configuration information, wherein the configuration information comprises the corresponding relation between the K sending beams and the P time windows.

3. The method of claim 1, wherein the first time period and the second time period are adjacent.

4. The method of claim 1, wherein a time interval between the first time period and an earliest time period of the M time periods is greater than zero and less than a duration of a time unit required for the network device to transmit a payload message.

5. The method according to any one of claims 1 to 4, wherein a starting time of an a-th time window of the P time windows is earlier than a starting time of an a + 1-th time window of the P time windows, a cutoff time of an a-th time window of the P time windows is later than a starting time of an a + 1-th time window of the P time windows, a is an integer greater than or equal to 1 and less than P, and a is earlier than a cutoff time of an a + 1-th time window of the P time windows.

6. The method according to any of claims 1 to 4, wherein a starting time of a (b) th time window of the P time windows is earlier than a starting time of a (b + 1) th time window of the P time windows, an ending time of the (b) th time window of the P time windows is equal to an ending time of a (b + 1) th time window of the P time windows, and b is an integer greater than or equal to 1 and less than P.

7. The method according to any one of claims 1 to 4, wherein a starting time of a c-th time window of the P time windows is equal to a starting time of a c + 1-th time window of the P time windows, an ending time of the c-th time window of the P time windows is earlier than an ending time of the c + 1-th time window of the P time windows, and c is an integer greater than or equal to 1 and less than P.

8. The method according to claim 5, wherein if the second time period is located in the jth time window and the second time period is located in the fth time window of the P time windows, the start time of the jth time window is earlier than or equal to the start time of the fth time window, and the start-stop time of the jth time window is earlier than or equal to the stop time of the fth time window, the signal sent by the network device in the second time period is the signal of the ith transmission beam, and f is an integer greater than or equal to 1 and less than or equal to P.

9. The method according to claim 6, wherein if the second time period is located in the jth time window and the second time period is located in the fth time window of the P time windows, the start time of the jth time window is earlier than or equal to the start time of the fth time window, and the start-stop time of the jth time window is earlier than or equal to the stop time of the fth time window, the signal sent by the network device in the second time period is the signal of the ith transmission beam, and f is an integer greater than or equal to 1 and less than or equal to P.

10. The method according to claim 7, wherein if the second time period is located in the jth time window and the second time period is located in an f-th time window of the P time windows, a start time of the jth time window is earlier than or equal to a start time of the f-th time window, and a start-stop time of the jth time window is earlier than or equal to a stop time of the f-th time window, the signal transmitted by the network device in the second time period is a signal of the i-th transmission beam, and f is an integer greater than or equal to 1 and less than or equal to P.

11. The method according to any one of claims 1 to 4, characterized in that the end time of the e-th time window of the P time windows is equal to the start time of the e + 1-th time window of the P time windows, e being an integer greater than or equal to 1 and less than P.

12. The method according to any one of claims 1 to 4, wherein the P time windows are time windows of a first window, the starting time of the P time windows is the same as the starting time of the first window, the ending time of the P time windows is the same as the ending time of the first window, the first window is one window in a first window set, the time interval between the starting time of the g-th window in the first window set and the starting time of the g + 1-th window in the first window set is a first period, and g is an integer greater than or equal to 1 and less than the number of windows included in the first window set.

13. The method of claim 12, wherein a correspondence between the time window in the g-th window and the K transmission beams is a first correspondence, a correspondence between the time window in the g + 1-th window and the K transmission beams is a second correspondence, and the first correspondence and the second correspondence are the same.

14. The method of claim 12, wherein a correspondence between the time window in the g-th window and the K transmission beams is a first correspondence, a correspondence between the time window in the g + 1-th window and the K transmission beams is a second correspondence, and the first correspondence and the second correspondence are different.

15. The method of claim 14, wherein the first correspondence and the second correspondence satisfy a first law;

the first rule is that if z is less than or equal to P _g+1 -x, then the beam corresponding to the z-th time window in the g-th window is the same as the beam corresponding to the z + x-th time window in the g + 1-th window, P _g+1 The number of time windows in the g +1 th window is shown, and x is a positive integer smaller than K; if z is greater than P _g+1 -x and is equal to or less than P _g+1 Then the beam corresponding to the z-th time window in the g-th window is the z + x-P in the g + 1-th window _g+1 The wave beams corresponding to the time windows are the same;

alternatively, the first and second electrodes may be,

the first rule is if P _g+1 If +1-z is greater than zero, the beam corresponding to the z-th time window in the g-th windowAnd the P (th) in the g +1 (th) window _g+1 The corresponding wave beams of +1-z time windows are the same if P _g+1 +1-z is less than or equal to zero, the beam corresponding to the z-th time window in the g-th window is the P-th time window in the g + 1-th window _g+1 * The corresponding wave beams of (t + 1) +1-z time windows are the same, P _g The number of time windows in the g-th window is t is P _g+1 * (t + 1) +1-z is the smallest positive integer greater than zero, z is greater than or equal to 1 and less than P _g Is a positive integer of (1).

16. The method according to any of claims 1 to 4, characterized in that the signal comprises a discovery signal DRS.

17. A method of signal transmission, the method comprising:

the terminal determines N corresponding to the ith transmission beam in the K transmission beams _i The position of each time window in P time windows, and the s-th transmission beam in the K transmission beams configured by the network equipment corresponds to N _s And the K sending beams correspond to the P time windows, and any two adjacent time windows in the P time windows satisfy the relationship: the starting time of the h-th time window in the P time windows is earlier than or equal to the starting time of the h + 1-th time window in the P time windows, K is a positive integer which is more than or equal to 1, P is a positive integer which is more than or equal to 1, N _s Is a positive integer less than P, N _i Is a positive integer greater than or equal to 1 and less than P, s is an integer greater than or equal to 1 and less than or equal to K, i is an integer greater than or equal to 1 and less than or equal to K, h is an integer greater than or equal to 1 and less than or equal to P;

the terminal is in the N _i And detecting and receiving the signal of the ith transmission beam transmitted by the network equipment in each time window.

18. The method of claim 17 wherein the terminal determines N for the ith of the K transmit beams _i The positions of the time windows in the P time windows comprise:

the terminal determines the positions of A time windows corresponding to the ith transmission beam in the K transmission beams and one or more close transmission beams thereof in the P time windows, wherein the A time windows comprise the N _i A time window, A is greater than or equal to N _i Is a positive integer of (a).

19. The method of claim 18, wherein the terminal is in the N _i Measuring a signal within a time window, comprising:

and the terminal detects and receives signals of the ith sending beam and one or more adjacent sending beams thereof sent by the network equipment in the A time windows.

20. The method of claim 17, wherein the terminal determines N for an ith transmission beam of the K transmission beams _i Before the position of each time window in the P time windows, the method further comprises the following steps:

the terminal receives a signal of the ith transmission beam sent by the network device at a first time, wherein the signal comprises configuration information, the first time is earlier than the starting time of the P time windows, and the configuration information comprises the corresponding relation between the P time windows and the K transmission beams; the terminal determines N corresponding to the ith transmission beam in the K transmission beams _i The positions of the time windows in the P time windows comprise: the terminal determines N corresponding to the ith transmission beam in the K transmission beams according to the configuration information _i The position of each time window in the P time windows.

21. The method according to any one of claims 17 to 20, wherein a starting time of an a-th time window of the P time windows is earlier than a starting time of an a + 1-th time window of the P time windows, an ending time of an a-th time window of the P time windows is later than a starting time of an a + 1-th time window of the P time windows, an ending time of an a-th time window of the P time windows is earlier than an ending time of an a + 1-th time window of the P time windows, a is an integer greater than or equal to 1 and less than P.

22. The method according to any one of claims 17 to 20, wherein the starting time of the b-th time window of the P time windows is earlier than the starting time of the b + 1-th time window of the P time windows, the ending time of the b-th time window of the P time windows is equal to the ending time of the b + 1-th time window of the P time windows, and b is an integer greater than or equal to 1 and less than P.

23. The method according to any one of claims 17 to 20, wherein a starting time of a c-th time window of the P time windows is equal to a starting time of a c + 1-th time window of the P time windows, an ending time of the c-th time window of the P time windows is earlier than an ending time of the c + 1-th time window of the P time windows, and c is an integer greater than or equal to 1 and less than P.

24. The method according to any one of claims 17 to 20, wherein the ending time of the e-th time window of the P time windows is equal to the starting time of the e + 1-th time window of the P time windows, e being an integer greater than or equal to 1 and less than P.

25. The method according to any one of claims 17 to 20, wherein the P time windows are time windows of a first window, a start time of the P time windows is the same as a start time of the first window, an end time of the P time windows is the same as an end time of the first window, the first window is one window in a first window set, a time interval between the start time of a g-th window in the first window set and a start time of a g + 1-th window in the first window set is a first period, and g is an integer greater than or equal to 1 and less than the number of windows included in the first window set.

26. The method of claim 25, wherein a correspondence between the time window in the g-th window and the K transmission beams is a first correspondence, a correspondence between the time window in the g + 1-th window and the K transmission beams is a second correspondence, and the first correspondence and the second correspondence are the same.

27. The method of claim 25, wherein a correspondence between the time window in the g-th window and the K transmission beams is a first correspondence, wherein a correspondence between the time window in the g + 1-th window and the K transmission beams is a second correspondence, and wherein the first correspondence and the second correspondence are different.

28. The method of claim 27, wherein the first correspondence and the second correspondence satisfy a first law;

the first rule is that if z is less than or equal to P _g+1 -x, then the beam corresponding to the z-th time window in the g-th window is the same as the beam corresponding to the z + x-th time window in the g + 1-th window, P _g+1 The number of time windows in the g +1 th window is shown, and x is a positive integer smaller than K; if z is greater than P _g+1 -x and is equal to or less than P _g+1 Then the beam corresponding to the z-th time window in the g-th window and the z + x-P in the g + 1-th window _g+1 The wave beams corresponding to the time windows are the same;

alternatively, the first and second electrodes may be,

the first rule is if P _g+1 If +1-z is greater than zero, the beam corresponding to the z-th time window in the g-th window is associated with the P-th time window in the g + 1-th window _g+1 The corresponding wave beams of +1-z time windows are the same if P _g+1 +1-z is less than or equal to zero, the beam corresponding to the z-th time window in the g-th window is the P-th time window in the g + 1-th window _g+1 * The corresponding wave beams of (t + 1) +1-z time windows are the same, P _g The number of time windows in the g-th window is t is P _g+1 * (t + 1) +1-z is a minimum positive integer greater than zero, z being greater than or equal to 1 and less than P _g Is a positive integer of (1).

29. The method according to any of claims 17 to 20, wherein said signal comprises a discovery signal DRS.

30. A network device, characterized in that the network device comprises means for performing the signal transmission method of any of claims 1-16.

31. A terminal device, characterized in that it comprises means for performing the signal transmission method of any of claims 17-29.

32. A communication system comprising a terminal device and a network device, wherein the network device is the network device of claim 30, and the terminal device is the terminal device of claim 31.