WO2024146610A1 - Signal sending method and apparatus, signal receiving method and apparatus, and device - Google Patents
Signal sending method and apparatus, signal receiving method and apparatus, and device Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Definitions
- the present application belongs to the field of communication technology, and specifically relates to a method, device and equipment for sending and receiving signals.
- the 3rd Generation Partnership Project (3GPP) has introduced the research work of low power wake-up receiver or wake-up signal (LP WUR/WUS) in mobile communication systems since Rel-18.
- the network side device determines the frequency domain resource mapping position of the first signal according to the first value, wherein the first value is greater than or equal to zero, and the first value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first value;
- the network side device maps the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted;
- a signal receiving method comprising:
- the terminal receives a first signal
- the first signal is obtained by mapping the second signal to the corresponding frequency domain resource
- the second signal is a wake-up signal WUS sequence
- the frequency domain resource mapping position of the first signal is determined according to a first numerical value
- the first numerical value is greater than or equal to zero
- the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth
- the first bandwidth is the initial bandwidth allocated by the system to the first signal
- the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted
- the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
- a position determination module configured to determine a frequency domain resource mapping position of a first signal according to a first value, wherein the first value is greater than or equal to zero, and the first value is less than or equal to a difference between a first bandwidth and a second bandwidth, the first bandwidth is an initial bandwidth allocated by the system to the first signal, the second bandwidth is a minimum bandwidth to ensure that the first signal is not distorted, and the size of the frequency domain resource mapped to the first signal is the difference between the first bandwidth and the first value;
- a resource mapping module configured to map a second signal to a corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted;
- a signal sending module is used to send the first signal.
- a signal receiving device comprising:
- a signal receiving module configured to receive a first signal
- a network side device which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method described in the first aspect are implemented.
- FIG. 6A is one of schematic diagrams of mapping effects of a first signal provided by another embodiment of the present application.
- FIG. 7A is one of schematic diagrams of mapping effects of a first signal provided by yet another embodiment of the present application.
- FIG8 is a flow chart of a signal receiving method provided in an embodiment of the present application.
- FIG. 10 is a schematic diagram of the structure of a signal receiving device provided in an embodiment of the present application.
- FIG. 11 is a schematic diagram of the structure of a communication device of the present application.
- FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
- the wireless communication system includes a terminal 11 and a network side device 12.
- the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device , robots, wearable devices (Wearable Device), vehicle user equipment (VUE), pedestrian user equipment (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PCs), teller machines or self-service machines and other terminal side devices, wearable devices include: smart watches, smart bracelets, smart headphones,
- the base station may be called a Node B, an evolved Node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home Node B, a home evolved Node B, a transmission reception point (Transmission Reception Point, TRP) or some other appropriate term in the field.
- the base station is not limited to specific technical vocabulary. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
- FIG 2 shows the working principle of the low power wake up receiver (LP WUR).
- the receiving end includes a first module 21 and a second module 22.
- the first module 21 is a main communication module, which is used to receive communication data transmitted by the transmitting end and send communication data
- the second module 22 is a low power module, which is used to receive a low power wake-up signal (Low power wake-up signal, LP WUS) and a low power beacon signal sent by the transmitting end.
- the low power wake-up signal is used to wake up the main communication module of the receiving end
- the low power beacon signal is used to provide time reference information and other information for receiving the low power wake-up signal, and can also provide wake-up link management.
- the system will allocate a relatively large bandwidth for WUS transmission, and map the WUS sequence to the frequency domain resources corresponding to the bandwidth for transmission.
- the applicant found that due to the short WUS sequence, a portion of the signal power in the allocated bandwidth is low, and the contribution to the overall signal power is not large. If the large bandwidth allocated by the system is always used to transmit the WUS signal, it is easy to cause a waste of frequency domain resources.
- a signal sending method proposed in an embodiment of the present application may include:
- Step 301 the network side device determines the frequency domain resource mapping position of the first signal according to a first numerical value, wherein the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
- the first signal may be represented by y
- the first bandwidth may be represented by M sc
- the first value may be represented by bw
- the difference between the first bandwidth and the second bandwidth may be represented by BW.
- the frequency domain resource mapping position of the first signal includes the starting position of the frequency domain resource mapping, the ending position of the frequency domain resource mapping, and the position between the starting position and the ending position, and the frequency domain resource size mapped by the first signal is the frequency domain width between the starting position and the ending position.
- the network side device determines the frequency domain resource mapping position of the first signal according to a first numerical value, which may include: the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the Radio Resource Control (RRC) state of the terminal; the network side device determines the ending position of the frequency domain resource mapping of the first signal according to the starting position, the first numerical value and the first bandwidth.
- RRC Radio Resource Control
- the ending position of the frequency domain resource mapping of the first signal mapping can be obtained through simple calculation. Therefore, determining the starting position of the frequency domain resource mapping of the first signal is the key.
- the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the RRC state of the terminal, which may include: the network side device determines the reference position according to the RRC state of the terminal; the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the reference position.
- the relationship between the RRC state of the terminal and the reference position may include:
- initial Downlink bandwidth part (initial DownLink bandwidth part, initial DL BWP) allocated by the system to the first signal.
- the reference location may include at least one of the following:
- the indication method of the reference point A may include but is not limited to at least one of the following:
- the lower boundary of the above-mentioned initial downlink bandwidth part or the lower boundary of the above-mentioned activated downlink bandwidth part can be indicated by using a physical resource block (PRB).
- PRB physical resource block
- the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the reference position, which may include: the network side device determines the offset of the starting position of the frequency domain resource mapping of the first signal relative to the reference position.
- the offset amount of the offset may be determined by protocol pre-definition, network side device configuration, etc.
- the starting position of the resource mapping of the first signal can also be determined based on other factors to ensure that the starting position and ending position of the resource mapping of the first signal are within the first bandwidth.
- the embodiment of the present application does not limit this.
- the relatively low-frequency part within the first bandwidth is used as much as possible, and some high frequencies are discarded to ensure the demodulation performance of the first signal at the receiving end of the first signal.
- this resource mapping method can save frequency domain resources and improve the utilization rate of frequency domain resources while ensuring the demodulation performance of the first signal.
- FIG4 shows a schematic diagram of the frequency domain resource mapping position of the first signal obtained by applying the signal sending method provided in an embodiment of the present application.
- the quantization unit of M sc and bw may be a resource block (RB).
- the quantization unit of M sc and bw may also be an absolute frequency domain width.
- One RB may include 12 resource elements (RE).
- the second signal is mapped to the frequency domain resources corresponding to these frequency domain resource mapping positions, so as to obtain the first information.
- the above step 302 may specifically include: the network side device maps the second signal to the corresponding frequency domain resource according to the first mapping formula to obtain the first signal.
- y represents the first signal
- xn represents the second signal
- N represents the length of the second signal
- M layer,symbol represents the mapped target layer (layer) and target symbol (symbol)
- k represents the frequency domain resource mapping position of the first signal
- k k 0 , k 0 +1,..., k 0 +M sc -bw-1
- k 0 represents the starting position of the frequency domain resource mapping of the first signal
- k 0 +M sc -bw-1 represents the end position of the frequency domain resource mapping of the first signal
- k' represents the subcarrier position corresponding to the Fourier transform
- M sc represents the first bandwidth
- bw represents the first value
- w n,i represents the matrix element of the corresponding position in the Fourier matrix
- F _ Offset represents the offset of the frequency domain resource mapping position of the first signal.
- F_Offset is introduced in the first mapping formula.
- difference in the rotation (ifftshift) reference point may cause the mapping result after rotation to not start from the zero frequency point.
- a constant can be added or subtracted during mapping, as shown in the above formula (2) and the above formula (4), adding or subtracting F_Offset . If the rotation reference point is selected appropriately, after mapping by the mapping method shown in the above formulas (1) and (3), the frequency domain resources can be moved exactly to the zero frequency point by rotation.
- the value of F_Offset is related to the rotation reference point. In one example, the value of F_Offset may be half of the first bandwidth.
- the second signal is obtained based on the third signal, wherein the third signal is the original bit sequence to be transmitted.
- the original bit sequence to be transmitted (third signal) can be multiplied by the oversampling r to form an oversampling sequence, which is encoded by the encoding method specified by the network side device, and then scrambled to form a second signal sequence.
- the encoding method can be one of Manchester encoding and repetition encoding
- the scrambling method can be one of ZC sequence, gold sequence, m sequence and binary phase shift keying (BPSK).
- the waveform of the third signal may be at least one code chip waveform transmitted in an orthogonal frequency division multiplexing (OFDM) symbol.
- OFDM orthogonal frequency division multiplexing
- the waveform of the third signal may include but is not limited to any of the following:
- OOK On-Off Keying
- FSK Frequency Shift Keying
- the proportional coefficient is the occupancy ratio of the second bandwidth to the first bandwidth (for example, 80%);
- the parameter value reported by the terminal includes parameters related to the receiving power of the first signal, such as the receiving power information of WUS at certain frequencies, specifically, the 3dB cutoff frequency of the low-pass filter in the terminal, the target frequency and receiving power information where the receiving power is lower than the first threshold, and so on.
- the first bandwidth is known, so when determining the difference between the first bandwidth and the second bandwidth according to the parameter value reported by the terminal, the second bandwidth can be determined according to the parameter value reported by the terminal first, and then the difference between the first bandwidth and the second bandwidth can be determined.
- the end position of the second bandwidth can be determined according to the target frequency point (usually, the position where the target frequency point is located is the end position of the second bandwidth), and then, since the starting position of the second bandwidth is usually the same as the starting position of the first bandwidth, the difference between the end position of the second bandwidth and the end position of the first bandwidth can be determined as the difference between the first bandwidth and the second bandwidth.
- Step 303 The network side device sends the first signal.
- the network side device may send the first signal to the terminal to wake up the main communication module in the terminal.
- the first signal is represented by y
- the first bandwidth is represented by M sc
- the first value is represented by bw
- the starting position of the frequency domain resource mapping of the first signal y is k 0
- the ending position of the frequency domain resource mapping of the first signal y can be represented as k 0 +M sc -bw-1.
- Bk 0 may also be an offset relative to the lower boundary of the initial DL BWP (which may be indicated by PRB).
- the second signal may be mapped to the corresponding frequency domain resource using the following formula (i.e., formula (1) above) to obtain the first signal:
- this resource mapping method can save frequency domain resources and improve the utilization rate of frequency domain resources while ensuring the demodulation performance of the first signal.
- the first signal obtained by mapping the above formula has a received waveform on the terminal side as shown in Figure 7B (shown by the solid line in Figure 7B). It can be seen from Figure 7B that the higher-power frequency portion of the first signal can be within the filtering range of the low-pass filter, thereby avoiding the waste of part of the useful signal power and ensuring the strength of the received power of the first signal, thereby ensuring the demodulation performance of the first signal.
- an embodiment of the present application also provides a signal receiving method, which is described below.
- Step 801 the terminal receives a first signal, wherein the first signal is obtained by mapping a second signal to a corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
- the signal sending method provided in the embodiment shown in FIG. 3 may be executed by a signal sending device.
- the signal sending device provided in the embodiment of the present application is taken as an example to execute the signal sending method.
- the signal receiving method provided in the embodiment shown in FIG. 8 may be executed by a signal receiving device.
- the signal receiving device provided in the embodiment of the present application is taken as an example to execute the signal receiving method.
- an embodiment of the present application provides a signal sending device 900 , and the device 900 may include: a location determination module 901 , a resource mapping module 902 , and a signal sending module 903 .
- the position determination module 901 is used to determine the frequency domain resource mapping position of the first signal according to a first numerical value, wherein the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
- the frequency domain resource mapping position of the first signal includes the starting position of the frequency domain resource mapping, the ending position of the frequency domain resource mapping, and the position between the starting position and the ending position, and the frequency domain resource size mapped by the first signal is the frequency domain width between the starting position and the ending position.
- the position determination module 901 can be used to: determine the starting position of the frequency domain resource mapping of the first signal according to the radio resource control (Radio Resource Control, RRC) state of the terminal; and determine the ending position of the frequency domain resource mapping of the first signal according to the starting position, the first value and the first bandwidth.
- RRC Radio Resource Control
- the ending position of the frequency domain resource mapping of the first signal mapping can be obtained through simple calculation. Therefore, determining the starting position of the frequency domain resource mapping of the first signal is the key.
- the position determination module 901 may be used to: determine a reference position according to an RRC state of the terminal; and determine a starting position of frequency domain resource mapping of the first signal according to the reference position.
- the relationship between the RRC state of the terminal and the reference position may include:
- the reference location may include at least one of the following:
- the reference location may include at least one of the following:
- initial Downlink bandwidth part (initial DownLink bandwidth part, initial DL BWP) allocated by the system to the first signal.
- the indication method of the reference point A may include but is not limited to at least one of the following:
- the position determination module 901 may be used to determine the offset of the starting position of the frequency domain resource mapping of the first signal relative to the reference position.
- the offset amount may be determined by protocol pre-definition, network side device configuration, and the like.
- the resource mapping module 902 may be specifically used to: map the second signal to the corresponding frequency domain resource according to the first mapping formula, and rotate (ifftshift) the mapping result according to a second numerical value to obtain the first signal, wherein the second numerical value is an offset F_Offset relative to the first bandwidth, for example, F_Offset may be half of the first bandwidth.
- the reason why the second value is introduced when rotating the mapping result is that the mapping result after rotation does not start from the zero frequency point due to the different rotation reference points.
- a constant (the above second value) can be added or subtracted during rotation. If the rotation reference point is selected appropriately, like the mapping method shown in the above formulas (1) and (3), the frequency domain resources can be directly shifted to the zero frequency point by rotation.
- the waveform of the third signal may be at least one code chip waveform transmitted in an orthogonal frequency division multiplexing (OFDM) symbol.
- OFDM orthogonal frequency division multiplexing
- OOK On-Off Keying
- the signal sending module 903 is used to send the first signal.
- this mapping method makes the bandwidth occupied by the first signal smaller than the first bandwidth, thereby reducing the occupation of frequency resources by the first signal, avoiding waste of frequency resources, and improving spectrum utilization efficiency.
- the signal receiving module 1001 may receive the first signal according to any one of the following:
- the signal receiving device 1000 in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
- the electronic device may be a terminal device.
- FIG. 12 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
- the terminal 1200 includes but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209 and at least some of the components of the processor 1210.
- the terminal 1200 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1210 through a power management system, so as to implement functions such as charging, discharging, and power consumption management through the power management system.
- a power source such as a battery
- the terminal structure shown in FIG12 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
- the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processor 12041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
- the display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
- the user input unit 1207 includes a touch panel 12071 and at least one of other input devices 12072.
- the touch panel 12071 is also called a touch screen.
- the touch panel 12071 may include two parts: a touch detection device and a touch controller.
- Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
- the RF unit 1201 can transmit the data to the processor 1210 for processing; in addition, the RF unit 1201 can send uplink data to the network side device.
- the RF unit 1201 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
- An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned signal sending method or signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
- An embodiment of the present application also provides a communication system, including: a network side device and a terminal device, wherein the network side device can be used to execute the steps of the signal sending method shown in FIG. 3 above, and the terminal device can be used to execute the steps of the signal receiving method shown in FIG. 8 above.
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Abstract
The present application relates to the technical field of communications, and discloses a signal sending method and apparatus, a signal receiving method and apparatus, and a device. The signal sending method comprises: a network side device determines a frequency domain resource mapping position of a first signal according to a first numerical value, maps a second signal to a corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, and sends the first signal, wherein the second signal is a WUS sequence to be transmitted; the first numerical value is greater than or equal to zero, and the first numerical value is smaller than or equal to a difference value between a first bandwidth and a second bandwidth; the first bandwidth is an initial bandwidth allocated by a system for the first signal; the second bandwidth is a minimum bandwidth for ensuring that the first signal is not distorted; and the size of the frequency domain resource for the mapping of the first signal is a difference value between the first bandwidth and the first numerical value.
Description
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请主张在2023年01月05日在中国提交的申请号为202310014476.X的中国专利的优先权,其全部内容通过引用包含于此。This application claims priority to Chinese patent application number 202310014476.X filed in China on January 5, 2023, the entire contents of which are incorporated herein by reference.
本申请属于通信技术领域,具体涉及一种信号发送、信号接收方法、装置和设备。The present application belongs to the field of communication technology, and specifically relates to a method, device and equipment for sending and receiving signals.
第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)从Rel-18开始在移动通信***中引入低功耗唤醒接收机或唤醒信号(Low power wake up receiver/wake-up signal,LP WUR/WUS)的研究工作。The 3rd Generation Partnership Project (3GPP) has introduced the research work of low power wake-up receiver or wake-up signal (LP WUR/WUS) in mobile communication systems since Rel-18.
目前,***会给WUS的传输分配一个相对较大的带宽,并将WUS序列映射在该带宽对应的频域资源上进行传输。申请人发现,这种信号的频域资源映射方式存在频域资源浪费的情况,需要改进。Currently, the system allocates a relatively large bandwidth for WUS transmission, and maps the WUS sequence to the frequency domain resources corresponding to the bandwidth for transmission. The applicant has found that this signal frequency domain resource mapping method wastes frequency domain resources and needs to be improved.
发明内容Summary of the invention
本申请实施例提供一种信号发送、信号接收方法、装置和设备,以减少WUS信号对频域资源的占用,避免频域资源浪费。The embodiments of the present application provide a signal sending and signal receiving method, apparatus and device to reduce the occupation of frequency domain resources by WUS signals and avoid wasting frequency domain resources.
第一方面,提供了一种信号发送方法,该方法包括:In a first aspect, a signal sending method is provided, the method comprising:
网络侧设备根据第一数值确定第一信号的频域资源映射位置,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值;The network side device determines the frequency domain resource mapping position of the first signal according to the first value, wherein the first value is greater than or equal to zero, and the first value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first value;
所述网络侧设备根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的唤醒信号WUS序列;The network side device maps the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted;
所述网络侧设备发送所述第一信号。The network side device sends the first signal.
第二方面,提供了一种信号接收方法,该方法包括:In a second aspect, a signal receiving method is provided, the method comprising:
终端接收第一信号;The terminal receives a first signal;
其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Among them, the first signal is obtained by mapping the second signal to the corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
第三方面,提供了一种信号发送装置,该装置包括:In a third aspect, a signal sending device is provided, the device comprising:
位置确定模块,用于根据第一数值确定第一信号的频域资源映射位置,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值;a position determination module, configured to determine a frequency domain resource mapping position of a first signal according to a first value, wherein the first value is greater than or equal to zero, and the first value is less than or equal to a difference between a first bandwidth and a second bandwidth, the first bandwidth is an initial bandwidth allocated by the system to the first signal, the second bandwidth is a minimum bandwidth to ensure that the first signal is not distorted, and the size of the frequency domain resource mapped to the first signal is the difference between the first bandwidth and the first value;
资源映射模块,用于根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的唤醒信号WUS序列;A resource mapping module, configured to map a second signal to a corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted;
信号发送模块,用于发送所述第一信号。A signal sending module is used to send the first signal.
第四方面,提供了一种信号接收装置,该装置包括:In a fourth aspect, a signal receiving device is provided, the device comprising:
信号接收模块,用于接收第一信号;A signal receiving module, configured to receive a first signal;
其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Among them, the first signal is obtained by mapping the second signal to the corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
第五方面,提供了一种网络侧设备,所述网络侧设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的信号发送方法的步骤。In a fifth aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method described in the first aspect are implemented.
第六方面,提供了一种终端设备,该终端设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第二方面所述的信号接收方法的步骤。In a sixth aspect, a terminal device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the signal receiving method described in the second aspect are implemented.
第七方面,提供了一种网络侧设备,包括处理器和通信接口,其中,所述处理器用于根据第一数值确定第一信号的频域资源映射位置,并根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的唤醒信号WUS序列,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值;所述通信接口用于发送所述第一信号。In the seventh aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to determine the frequency domain resource mapping position of the first signal according to a first numerical value, and map the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped by the first signal is the difference between the first bandwidth and the first numerical value; the communication interface is used to send the first signal.
第八方面,提供了一种终端设备,包括处理器和通信接口,所述通信接口用于接收第一信号;其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。In an eighth aspect, a terminal device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a first signal; wherein the first signal is obtained by mapping a second signal to a corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, and the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped by the first signal is the difference between the first bandwidth and the first numerical value.
第九方面,提供了一种通信***,包括网络侧设备和终端,所述网络侧设备用于执行如第一方面所述的信号发送方法的步骤,所述终端用于执行如第二方面所述的信号接收方法的步骤。In a ninth aspect, a communication system is provided, comprising a network side device and a terminal, wherein the network side device is used to execute the steps of the signal sending method as described in the first aspect, and the terminal is used to execute the steps of the signal receiving method as described in the second aspect.
第十方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面或第二方面所述的方法的步骤。In a tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.
第十一方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面或第二方面所述的方法的步骤。In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect or the second aspect.
第十二方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在非瞬态的存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面或第二方面所述的方法的步骤。In the twelfth aspect, a computer program/program product is provided, wherein the computer program/program product is stored in a non-volatile storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.
在本申请实施例中,网络侧设备根据第一数值确定第一信号的频域资源映射位置,并根据所述频域资源映射位置将第二信号(待传输的唤醒信号WUS序列)映射至相应的频域资源,得到所述第一信号,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。由于所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值,因此这种映射方式使得第一信号占用的带宽小于第一带宽,从而减少第一信号对频率资源的占用,避免频率资源浪费,提高频谱利用效率。In an embodiment of the present application, the network side device determines the frequency domain resource mapping position of the first signal according to the first numerical value, and maps the second signal (the wake-up signal WUS sequence to be transmitted) to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value. Since the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value, this mapping method makes the bandwidth occupied by the first signal smaller than the first bandwidth, thereby reducing the occupation of frequency resources by the first signal, avoiding waste of frequency resources, and improving spectrum utilization efficiency.
图1是本申请实施例提供的一种无线通信***的框图。FIG1 is a block diagram of a wireless communication system provided in an embodiment of the present application.
图2是本申请实施例提供的NR LP WUR/WUS工作原理示意图。Figure 2 is a schematic diagram of the NR LP WUR/WUS working principle provided in an embodiment of the present application.
图3是本申请实施例提供的一种信号发送方法的流程示意图。FIG3 is a flow chart of a signal sending method provided in an embodiment of the present application.
图4是应用本申请实施例提供的信号发送方法得到的第一信号的频域资源映射位置示意图。FIG4 is a schematic diagram of the frequency domain resource mapping position of the first signal obtained by applying the signal sending method provided in an embodiment of the present application.
图5A是本申请的一个实施例提供的第一信号的频率-功率变化示意图。FIG5A is a schematic diagram of frequency-power variation of a first signal provided by an embodiment of the present application.
图5B是本申请的一个实施例提供的第一信号的映射效果示意图。FIG5B is a schematic diagram of a mapping effect of a first signal provided by an embodiment of the present application.
图6A是本申请的另一实施例提供的第一信号的映射效果示意图之一。FIG. 6A is one of schematic diagrams of mapping effects of a first signal provided by another embodiment of the present application.
图6B是本申请的另一实施例提供的第一信号的映射效果示意图之二。FIG. 6B is a second schematic diagram of the mapping effect of the first signal provided by another embodiment of the present application.
图7A是本申请的又一实施例提供的第一信号的映射效果示意图之一。FIG. 7A is one of schematic diagrams of mapping effects of a first signal provided by yet another embodiment of the present application.
图7B是本申请的又一实施例提供的第一信号的映射效果示意图之二。
FIG. 7B is a second schematic diagram of the mapping effect of the first signal provided by yet another embodiment of the present application.
图8是本申请实施例提供的一种信号接收方法的流程示意图。FIG8 is a flow chart of a signal receiving method provided in an embodiment of the present application.
图9是本申请实施例提供的一种信号发送装置的结构示意图。FIG. 9 is a schematic diagram of the structure of a signal sending device provided in an embodiment of the present application.
图10是本申请实施例提供的一种信号接收装置的结构示意图。FIG. 10 is a schematic diagram of the structure of a signal receiving device provided in an embodiment of the present application.
图11是本申请一种通信设备的结构示意图。FIG. 11 is a schematic diagram of the structure of a communication device of the present application.
图12是本申请实施例提供的终端设备的硬件结构示意图。FIG. 12 is a schematic diagram of the hardware structure of a terminal device provided in an embodiment of the present application.
图13本申请实施例提供的网络侧设备的硬件结构示意图。FIG13 is a schematic diagram of the hardware structure of the network side device provided in an embodiment of the present application.
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally represents that the objects associated with each other are in an "or" relationship.
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)***,还可用于其他无线通信***,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他***。本申请实施例中的术语“***”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的***和无线电技术,也可用于其他***和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)***,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR***应用以外的应用,如第6代(6th Generation,6G)通信***。It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as for other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system.
图1示出了本申请实施例可应用的一种无线通信***的框图。无线通信***包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、WLAN接入点或WiFi节点等,基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmission Reception Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR***中的基站为例进行介绍,并不限定基站的具体类型。FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device , robots, wearable devices (Wearable Device), vehicle user equipment (VUE), pedestrian user equipment (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PCs), teller machines or self-service machines and other terminal side devices, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of the present application. The network side device 12 may include access network equipment or core network equipment, wherein the access network equipment may also be called wireless access network equipment, wireless access network (Radio Access Network, RAN), wireless access network function or wireless access network unit. The access network equipment may include a base station, a WLAN access point or a WiFi node, etc. The base station may be called a Node B, an evolved Node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home Node B, a home evolved Node B, a transmission reception point (Transmission Reception Point, TRP) or some other appropriate term in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
图2示出了低功耗唤醒接收机(Low power wake up receiver,LP WUR)的工作原理。Figure 2 shows the working principle of the low power wake up receiver (LP WUR).
如图2所示,接收端(低功耗唤醒接收机)包含第一模块21和第二模块22。其中,第一模块21为主通信模块,用于接收发送端传输的通信数据以及发送通信数据,第二模块22为低功耗模块,用于接收发送端发送的低功耗唤醒信号(Low power wake-up signal,LP WUS)和低功耗信标信号。低功耗唤醒信号用于唤醒接收端的主通信模块,低功耗信标信号用于为接收低功耗唤醒信号提供时间参考信息和其他信息,还可以提供唤醒链路管理。As shown in FIG2 , the receiving end (low power wake-up receiver) includes a first module 21 and a second module 22. The first module 21 is a main communication module, which is used to receive communication data transmitted by the transmitting end and send communication data, and the second module 22 is a low power module, which is used to receive a low power wake-up signal (Low power wake-up signal, LP WUS) and a low power beacon signal sent by the transmitting end. The low power wake-up signal is used to wake up the main communication module of the receiving end, and the low power beacon signal is used to provide time reference information and other information for receiving the low power wake-up signal, and can also provide wake-up link management.
如图2所示,第一模块21未被第二模块22唤醒时,一直处于关闭状态,不发送和接收数据,当有下行数据到达时,第二模块22检测到发送端发送的唤醒信号,且该唤醒信号包含本终端信息,则第二模块22触发第一模块21由关闭状态切换到工作状态,进行数据接收和发送。第二模块22可以连续开启,也可以不连续开启,第二模块22开启时可接收低功耗唤醒信号和/或低功耗信标信号。As shown in Figure 2, when the first module 21 is not awakened by the second module 22, it is always in the closed state and does not send or receive data. When downlink data arrives, the second module 22 detects the wake-up signal sent by the transmitter, and the wake-up signal contains the terminal information, then the second module 22 triggers the first module 21 to switch from the closed state to the working state to receive and send data. The second module 22 can be turned on continuously or discontinuously. When the second module 22 is turned on, it can receive low-power wake-up signals and/or low-power beacon signals.
发送端一般为网络侧设备,接收端一般为终端。在本申请实施例中,以发送端为网络侧设备,接收端为终端为例,对本申请实施例提供的技术方案进行介绍。The transmitting end is generally a network side device, and the receiving end is generally a terminal. In the embodiment of the present application, the technical solution provided by the embodiment of the present application is introduced by taking the transmitting end as a network side device and the receiving end as a terminal as an example.
***会给WUS的传输分配一个相对较大的带宽,并将WUS序列映射在该带宽对应的频域资源上进行传输。申请人发现,由于WUS序列较短,分配的带宽中有一部分信号的功率较低,对整体信号功率的贡献值不大。如果始终使用***分配的大带宽传输WUS信号,容易造成频域资源的浪费。The system will allocate a relatively large bandwidth for WUS transmission, and map the WUS sequence to the frequency domain resources corresponding to the bandwidth for transmission. The applicant found that due to the short WUS sequence, a portion of the signal power in the allocated bandwidth is low, and the contribution to the overall signal power is not large. If the large bandwidth allocated by the system is always used to transmit the WUS signal, it is easy to cause a waste of frequency domain resources.
为了解决上述问题,本申请实施例提出一种信号发送方法,以减少WUS在对频域资源的占用,节省出的部分带宽可用于其它信号的传输,从而避免频域资源的浪费,提高频谱利用效率。
In order to solve the above problems, an embodiment of the present application proposes a signal sending method to reduce the occupation of frequency domain resources by WUS. The saved part of the bandwidth can be used for the transmission of other signals, thereby avoiding the waste of frequency domain resources and improving the spectrum utilization efficiency.
如图3所示,本申请实施例提出的一种信号发送方法,可包括:As shown in FIG3 , a signal sending method proposed in an embodiment of the present application may include:
步骤301、网络侧设备根据第一数值确定第一信号的频域资源映射位置,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Step 301, the network side device determines the frequency domain resource mapping position of the first signal according to a first numerical value, wherein the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
为了便于理解,上述第一信号可用y表示,上述第一带宽可用Msc表示,上述第一数值可用bw表示,上述第一带宽与上述第二带宽的差值可用BW表示。作为一个例子,上述第一数值具体可表示为:bw=0,1,..,BW。For ease of understanding, the first signal may be represented by y, the first bandwidth may be represented by M sc , the first value may be represented by bw, and the difference between the first bandwidth and the second bandwidth may be represented by BW. As an example, the first value may be specifically represented as: bw=0, 1, .., BW.
一般而言,所述第一信号的频域资源映射位置包括频域资源映射的起始位置、频域资源映射的结束位置以及起始位置和结束位置之间的位置,所述第一信号映射的频域资源大小为起始位置和结束位置之间的频域宽度。Generally speaking, the frequency domain resource mapping position of the first signal includes the starting position of the frequency domain resource mapping, the ending position of the frequency domain resource mapping, and the position between the starting position and the ending position, and the frequency domain resource size mapped by the first signal is the frequency domain width between the starting position and the ending position.
作为一个例子,所述网络侧设备根据第一数值确定第一信号的频域资源映射位置,可包括:所述网络侧设备根据终端的无线资源控制(Radio Resource Control,RRC)状态,确定所述第一信号的频域资源映射的起始位置;所述网络侧设备根据所述起始位置、所述第一数值和所述第一带宽,确定所述第一信号的频域资源映射的结束位置。As an example, the network side device determines the frequency domain resource mapping position of the first signal according to a first numerical value, which may include: the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the Radio Resource Control (RRC) state of the terminal; the network side device determines the ending position of the frequency domain resource mapping of the first signal according to the starting position, the first numerical value and the first bandwidth.
由于在所述第一信号的频域资源映射的起始位置和所述第一信号映射的频域资源大小(所述第一带宽与所述第一数值的差值)已知的情况下,所述第一信号映射的频域资源映射的结束位置便可通过简单的计算得知,因此,确定所述第一信号的频域资源映射的起始位置是关键。Since the starting position of the frequency domain resource mapping of the first signal and the frequency domain resource size of the first signal mapping (the difference between the first bandwidth and the first value) are known, the ending position of the frequency domain resource mapping of the first signal mapping can be obtained through simple calculation. Therefore, determining the starting position of the frequency domain resource mapping of the first signal is the key.
进一步地,作为一个例子,所述网络侧设备根据终端的RRC状态,确定所述第一信号的频域资源映射的起始位置,可包括:所述网络侧设备根据终端的RRC状态确定参考位置;所述网络侧设备根据所述参考位置确定所述第一信号的频域资源映射的起始位置。Further, as an example, the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the RRC state of the terminal, which may include: the network side device determines the reference position according to the RRC state of the terminal; the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the reference position.
其中,终端的RRC状态与所述参考位置的关系,可包括:The relationship between the RRC state of the terminal and the reference position may include:
1)在所述终端的RRC状态为空闲(idle)状态或去激活(inactive)状态的情况下,所述参考位置可以包括下述至少一项:1) When the RRC state of the terminal is an idle state or an inactive state, the reference location may include at least one of the following:
A.参考点A(point A);A. Reference point A (point A);
B.***为所述第一信号分配的初始下行带宽部分(initial DownLink bandwidth part,initial DL BWP)的下边界。B. The lower boundary of the initial downlink bandwidth part (initial DownLink bandwidth part, initial DL BWP) allocated by the system to the first signal.
2)在所述终端的RRC状态为连接(connected)状态的情况下,所述参考位置可以包括下述至少一项:2) When the RRC state of the terminal is a connected state, the reference location may include at least one of the following:
A.参考点A(point A);A. Reference point A (point A);
B.***为所述第一信号分配的初始下行带宽部分(initial DownLink bandwidth part,initial DL BWP)的下边界。
B. The lower boundary of the initial downlink bandwidth part (initial DL BWP) allocated by the system to the first signal.
C.***为所述第一信号分配的激活下行带宽部分(active DL BWP)的下边界。C. The lower boundary of the activated downlink bandwidth part (active DL BWP) allocated by the system for the first signal.
上述参考点A的指示方式可包括但不限于下述至少一项:The indication method of the reference point A may include but is not limited to at least one of the following:
1)参考点A相对于指定频域位置的偏移,例如,公共资源块(common resource block,CRB)相对于参考点A的偏移(offsetToPointA);1) The offset of reference point A relative to a specified frequency domain position, for example, the offset of a common resource block (CRB) relative to reference point A (offsetToPointA);
2)参考点A在频域的绝对位置(absoluteFrequencyPointA)。2) The absolute position of reference point A in the frequency domain (absoluteFrequencyPointA).
上述初始下行带宽部分的下边界或上述激活下行带宽部分的下边界的指示方式可以为:用物理资源块(physical resource block,PRB)来指示。The lower boundary of the above-mentioned initial downlink bandwidth part or the lower boundary of the above-mentioned activated downlink bandwidth part can be indicated by using a physical resource block (PRB).
其中,所述网络侧设备根据所述参考位置确定所述第一信号的频域资源映射的起始位置,可包括:所述网络侧设备确定所述第一信号的频域资源映射的起始位置相对于所述参考位置的偏移。该偏移的偏移量,可由协议预定义、网络侧设备配置等方式来确定。The network side device determines the starting position of the frequency domain resource mapping of the first signal according to the reference position, which may include: the network side device determines the offset of the starting position of the frequency domain resource mapping of the first signal relative to the reference position. The offset amount of the offset may be determined by protocol pre-definition, network side device configuration, etc.
需要说明的是,除了终端的RRC状态,也可以根据其他因素确定第一信号的资源映射的起始位置,保证第一信号的资源映射的起始位置和结束位置位于第一带宽之内即可,本申请实施例对此不做限制。It should be noted that in addition to the RRC state of the terminal, the starting position of the resource mapping of the first signal can also be determined based on other factors to ensure that the starting position and ending position of the resource mapping of the first signal are within the first bandwidth. The embodiment of the present application does not limit this.
可选的,在确定第一信号的频域资源映射位置时,尽可能地利用第一带宽内的相对低频的部分,摒弃部分高频,以保证第一信号的接收端对所述第一信号的解调性能。这是因为,第一带宽内的部分高频(靠近第一带宽的结束位置的部分高频)对于第一信号的波形的影响体现在波形的细节,没有这部分频率,同样能够保留波形的整体轮廓信息,所以这种资源映射方式,可以在保证第一信号的解调性能的同时,节省频域资源,提升频域资源利用率。Optionally, when determining the frequency domain resource mapping position of the first signal, the relatively low-frequency part within the first bandwidth is used as much as possible, and some high frequencies are discarded to ensure the demodulation performance of the first signal at the receiving end of the first signal. This is because the influence of some high frequencies within the first bandwidth (some high frequencies close to the end position of the first bandwidth) on the waveform of the first signal is reflected in the details of the waveform. Without this part of the frequency, the overall contour information of the waveform can also be retained. Therefore, this resource mapping method can save frequency domain resources and improve the utilization rate of frequency domain resources while ensuring the demodulation performance of the first signal.
图4示出了应用本申请实施例提供的信号发送方法得到的第一信号的频域资源映射位置示意图。参考图4可知,假设第一信号y的频域资源映射的起始位置为k0,那么,第一信号y的频域资源映射的结束位置可表示为k0+Msc-bw-1。另外,从图4可以看出,当引入第一数值bw约束第一信号的频域资源映射的结束位置(k0+Msc-bw-1)时,相对于所述第一带宽所在的结束位置(k0+Msc-1),第一信号实际占用的频域资源减少,因此可以避免频域资源浪费,节省频域资源。FIG4 shows a schematic diagram of the frequency domain resource mapping position of the first signal obtained by applying the signal sending method provided in an embodiment of the present application. Referring to FIG4, it can be seen that, assuming that the starting position of the frequency domain resource mapping of the first signal y is k 0 , then the ending position of the frequency domain resource mapping of the first signal y can be expressed as k 0 +M sc -bw-1. In addition, it can be seen from FIG4 that when the first numerical value bw is introduced to constrain the ending position (k 0 +M sc -bw-1) of the frequency domain resource mapping of the first signal, relative to the ending position (k 0 +M sc -1) where the first bandwidth is located, the frequency domain resources actually occupied by the first signal are reduced, thereby avoiding the waste of frequency domain resources and saving frequency domain resources.
如图4所示,Msc和bw的量化单位可以为资源块(resource block,RB),当然,Msc和bw的量化单位还可以是绝对频域宽度。其中,一个RB可以包括12个资源粒子(resource element,RE)。As shown in Fig. 4, the quantization unit of M sc and bw may be a resource block (RB). Of course, the quantization unit of M sc and bw may also be an absolute frequency domain width. One RB may include 12 resource elements (RE).
步骤302、所述网络侧设备根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的唤醒信号(wake-up signal,WUS)序列。Step 302: The network side device maps the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal (WUS) sequence to be transmitted.
可以理解,在确定出第一信号的频域资源映射位置之后,将第二信号映射至这些频域资源映射位置对应的频域资源,即可得到第一信息。It can be understood that after the frequency domain resource mapping positions of the first signal are determined, the second signal is mapped to the frequency domain resources corresponding to these frequency domain resource mapping positions, so as to obtain the first information.
作为一个例子,上述步骤302具体可包括:所述网络侧设备根据第一映射公式将第二信号映射至相应的频域资源,得到所述第一信号。As an example, the above step 302 may specifically include: the network side device maps the second signal to the corresponding frequency domain resource according to the first mapping formula to obtain the first signal.
其中,所述第一映射公式可包括但不限于下述任一项:
The first mapping formula may include but is not limited to any of the following:
The first mapping formula may include but is not limited to any of the following:
在上述公式中,y表示所述第一信号,xn表示所述第二信号,N表示所述第二信号的长度,Mlayer,symbol表示映射的目标层(layer)和目标符号(symbol),k表示所述第一信号的频域资源映射位置,k=k0,k0+1,…,k0+Msc-bw-1,k0表示所述第一信号的频域资源映射的起始位置,k0+Msc-bw-1表示所述第一信号的频域资源映射的结束位置,k’表示傅里叶变换对应的子载波位置,Msc表示所述第一带宽,bw表示所述第一数值,wn,i表示傅里叶矩阵中对应位置的矩阵元素,F_Offset表示所述第一信号的频域资源映射位置的偏移量。In the above formula, y represents the first signal, xn represents the second signal, N represents the length of the second signal, M layer,symbol represents the mapped target layer (layer) and target symbol (symbol), k represents the frequency domain resource mapping position of the first signal, k=k 0 , k 0 +1,…, k 0 +M sc -bw-1, k 0 represents the starting position of the frequency domain resource mapping of the first signal, k 0 +M sc -bw-1 represents the end position of the frequency domain resource mapping of the first signal, k' represents the subcarrier position corresponding to the Fourier transform, M sc represents the first bandwidth, bw represents the first value, w n,i represents the matrix element of the corresponding position in the Fourier matrix, and F _ Offset represents the offset of the frequency domain resource mapping position of the first signal.
之所以在第一映射公式中引入F_Offset,是因为旋转(ifftshift)参考点的不同可能导致旋转后的映射结果不是从零频点开始的。为了弥补旋转之后的映射结果不是从零频点开始的缺陷,可以在映射时加上或者减去一个常数,如上述公式(2)和上述公式(4)所示,加上或者减去F_Offset。如果旋转参考点选取的比较合适,则通过上述公式(1)和(3)所示的映射方式进行映射后,通过旋转可以将频域资源正好移到零频点。The reason why F_Offset is introduced in the first mapping formula is that the difference in the rotation (ifftshift) reference point may cause the mapping result after rotation to not start from the zero frequency point. In order to make up for the defect that the mapping result after rotation does not start from the zero frequency point, a constant can be added or subtracted during mapping, as shown in the above formula (2) and the above formula (4), adding or subtracting F_Offset . If the rotation reference point is selected appropriately, after mapping by the mapping method shown in the above formulas (1) and (3), the frequency domain resources can be moved exactly to the zero frequency point by rotation.
F_Offset的取值和旋转参考点有关。在一个例子中,F_Offset的取值可以为第一带宽的二分之一。The value of F_Offset is related to the rotation reference point. In one example, the value of F_Offset may be half of the first bandwidth.
可选的,上述第二信号是根据第三信号得到的,其中,所述第三信号为待传输的原始比特序列。具体的,可将待传输的原始比特序列(第三信号)与过采样r相乘,形成过采样序列,该过采样序列经过网络侧设备指定的编码方式进行编码,然后经过加扰之后,形成第二信号序列。其中,所述编码方式可以是曼彻斯特编码和重复编码等方式中的一种,加扰的方式可以是ZC序列、gold序列、m序列和二进制相移键控(binary phase shift keying,BPSK)等方式中的一种。Optionally, the second signal is obtained based on the third signal, wherein the third signal is the original bit sequence to be transmitted. Specifically, the original bit sequence to be transmitted (third signal) can be multiplied by the oversampling r to form an oversampling sequence, which is encoded by the encoding method specified by the network side device, and then scrambled to form a second signal sequence. The encoding method can be one of Manchester encoding and repetition encoding, and the scrambling method can be one of ZC sequence, gold sequence, m sequence and binary phase shift keying (BPSK).
可选的,所述第三信号的波形可以为在一个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号中传输的至少一个码片波形。Optionally, the waveform of the third signal may be at least one code chip waveform transmitted in an orthogonal frequency division multiplexing (OFDM) symbol.
进一步的,所述第三信号的波形可包括但不限于下述任一项:Furthermore, the waveform of the third signal may include but is not limited to any of the following:
多载波开关键控(On-Off Keying,OOK)波形;Multi-carrier On-Off Keying (OOK) waveform;
多载波振幅键控(Amplitude Shift Keying,ASK)波形;
Multi-carrier Amplitude Shift Keying (ASK) waveform;
多载波频移键控(Frequency Shift Keying,FSK)波形。Multi-carrier Frequency Shift Keying (FSK) waveform.
可选的,所述第一带宽与所述第二带宽的差值的确定方式包括下述至少一项:Optionally, a method for determining the difference between the first bandwidth and the second bandwidth includes at least one of the following:
1)协议预定义;1) Protocol pre-definition;
2)网络侧设备配置;2) Network side equipment configuration;
3)根据所述第一带宽的值和所述第二带宽的值确定;3) determined according to the value of the first bandwidth and the value of the second bandwidth;
4)根据所述第一带宽的值和比例系数确定;4) Determined according to the value of the first bandwidth and the proportionality coefficient;
5)根据所述第二带宽的值和比例系数确定;5) determined according to the value of the second bandwidth and the proportionality coefficient;
6)根据上一次传输的第一信号占用的带宽确定;6) Determined according to the bandwidth occupied by the first signal transmitted last time;
7)根据所述终端上报的参数值确定。7) Determined according to the parameter value reported by the terminal.
其中,所述比例系数为所述第二带宽在所述第一带宽的占用比例(比如80%);所述终端上报的参数值包括与所述第一信号的接收功率有关的参数,比如,WUS在某些频点的接收功率信息,具体如,终端中的低通滤波器的3dB截止频率,接收功率低于第一门限的目标频点及接收功率信息,等等。Among them, the proportional coefficient is the occupancy ratio of the second bandwidth to the first bandwidth (for example, 80%); the parameter value reported by the terminal includes parameters related to the receiving power of the first signal, such as the receiving power information of WUS at certain frequencies, specifically, the 3dB cutoff frequency of the low-pass filter in the terminal, the target frequency and receiving power information where the receiving power is lower than the first threshold, and so on.
一般而言,第一带宽是已知的,那么在根据所述终端上报的参数值确定所述第一带宽与所述第二带宽的差值时,可以先根据所述终端上报的参数值确定第二带宽,然后确定第一带宽与第二带宽的差值。举例来说,假如所述终端上报的参数值包括接收功率低于第一门限的目标频点及接收功率信息,则可以先根据目标频点确定第二带宽的结束位置(通常情况下,目标频点所在位置即第二带宽的结束位置),然后,由于第二带宽的起始位置通常与第一带宽的起始位置相同,因此可将第二带宽的结束位置与第一带宽的结束位置之间的差值,确定为所述第一带宽与所述第二带宽的差值。Generally speaking, the first bandwidth is known, so when determining the difference between the first bandwidth and the second bandwidth according to the parameter value reported by the terminal, the second bandwidth can be determined according to the parameter value reported by the terminal first, and then the difference between the first bandwidth and the second bandwidth can be determined. For example, if the parameter value reported by the terminal includes the target frequency point where the received power is lower than the first threshold and the received power information, the end position of the second bandwidth can be determined according to the target frequency point (usually, the position where the target frequency point is located is the end position of the second bandwidth), and then, since the starting position of the second bandwidth is usually the same as the starting position of the first bandwidth, the difference between the end position of the second bandwidth and the end position of the first bandwidth can be determined as the difference between the first bandwidth and the second bandwidth.
步骤303、所述网络侧设备发送所述第一信号。Step 303: The network side device sends the first signal.
具体的,在得到第一信号后,网络侧设备可将第一信号发送至终端,以唤醒终端中的主通信模块。Specifically, after receiving the first signal, the network side device may send the first signal to the terminal to wake up the main communication module in the terminal.
本申请实施例提出的一种信号发送方法,网络侧设备根据第一数值确定第一信号的频域资源映射位置,并根据所述频域资源映射位置将第二信号(待传输的唤醒信号WUS序列)映射至相应的频域资源,得到所述第一信号,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。由于所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值,因此这种映射方式使得第一信号占用的带宽小于第一带宽,从而减少第一信号对频率资源的占用,避免频率资源浪费,提高频谱利用效率。A signal sending method proposed in an embodiment of the present application, the network side device determines the frequency domain resource mapping position of the first signal according to the first numerical value, and maps the second signal (the wake-up signal WUS sequence to be transmitted) to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value. Since the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value, this mapping method makes the bandwidth occupied by the first signal smaller than the first bandwidth, thereby reducing the occupation of frequency resources by the first signal, avoiding waste of frequency resources, and improving spectrum utilization efficiency.
此外,在确定第一信号的频域资源映射位置时,尽可能多地利用第一带宽内的相对低频的部分,摒弃部分高频,以保证第一信号的接收端对所述第一信号的解调性能。这是因为,第一带宽内的部分高频(靠近第一带宽的结束位置的部分高频)对于第一信号的波形的影响体现在波形的细节,没有这部分频率,同样能够保留波形的整体轮廓信息,所以这种资源映射方式,可以在保证第一信号的解调性能的同时,节省频域资源,提升频域资源利用率。In addition, when determining the frequency domain resource mapping position of the first signal, the relatively low-frequency part within the first bandwidth is used as much as possible, and some high frequencies are discarded to ensure the demodulation performance of the first signal by the receiving end of the first signal. This is because the influence of some high frequencies within the first bandwidth (some high frequencies close to the end position of the first bandwidth) on the waveform of the first signal is reflected in the details of the waveform. Without this part of the frequency, the overall contour information of the waveform can also be retained. Therefore, this resource mapping method can save frequency domain resources and improve the utilization rate of frequency domain resources while ensuring the demodulation performance of the first signal.
下面通过三个具体的实施例对本申请提供的一种信号发送方法进行说明。A signal sending method provided by the present application is described below through three specific embodiments.
在下面这三个实施例中,上述第一信号用y表示,上述第一带宽用Msc表示,上述第一数值可用bw表示,上述第一带宽与上述第二带宽的差值可用BW表示,bw=0,1,..,BW;第一信号y的频域资源映射的起始位置为k0,第一信号y的频域资源映射的结束位置可表示为k0+Msc-bw-1。In the following three embodiments, the first signal is represented by y, the first bandwidth is represented by M sc , the first value is represented by bw, the difference between the first bandwidth and the second bandwidth is represented by BW, bw=0, 1, .., BW; the starting position of the frequency domain resource mapping of the first signal y is k 0 , and the ending position of the frequency domain resource mapping of the first signal y can be represented as k 0 +M sc -bw-1.
在图5A、图5B、图6A、图6B、图7A和图7B中,横轴表示频率,纵轴表示第一信号的接收功率。此外,在图6A、图6B、图7A和图7B中实线表示第一信号的接收波形,虚线表示低通滤波器的滤波范围。In Fig. 5A, Fig. 5B, Fig. 6A, Fig. 6B, Fig. 7A and Fig. 7B, the horizontal axis represents the frequency and the vertical axis represents the received power of the first signal. In addition, in Fig. 6A, Fig. 6B, Fig. 7A and Fig. 7B, the solid line represents the received waveform of the first signal and the dotted line represents the filtering range of the low-pass filter.
实施例一Embodiment 1
k0的确定可以有以下几种方式:There are several ways to determine k 0 :
1)当终端处于RRC_idle状态或者RRC_inactive状态时,k0的确定可以包括:1) When the terminal is in the RRC_idle state or the RRC_inactive state, the determination of k0 may include:
A.k0可以是相对于point A的偏移,其中,pointA的指示方式包含offsetToPointA(可以用CRB指示)和absoluteFrequencyPointA(pointA在频域的绝对位置)。Ak 0 may be an offset relative to point A, wherein the indication methods of point A include offsetToPointA (which may be indicated by CRB) and absoluteFrequencyPointA (the absolute position of pointA in the frequency domain).
B.k0还可以是相对于initial DL BWP的下边界(可以用PRB指示)的偏移。Bk 0 may also be an offset relative to the lower boundary of the initial DL BWP (which may be indicated by PRB).
2)当终端处于RRC_connected状态时,k0的确定可以包括:2) When the terminal is in the RRC_connected state, the determination of k0 may include:
A.k0可以是相对于point A的偏移,其中,pointA的指示方式包含offsetToPointA(可以用CRB指示)和absoluteFrequencyPointA(pointA在频域的绝对位置)。Ak 0 may be an offset relative to point A, wherein the indication methods of point A include offsetToPointA (which may be indicated by CRB) and absoluteFrequencyPointA (the absolute position of pointA in the frequency domain).
B.k0还可以是相对于initial DL BWP的下边界(可以用PRB指示)的偏移。Bk 0 may also be an offset relative to the lower boundary of the initial DL BWP (which may be indicated by PRB).
C.k0还可以是相对于active DL BWP的下边界(可以用PRB指示)的偏移。Ck 0 may also be an offset relative to the lower boundary of the active DL BWP (which may be indicated by PRB).
进一步地,如图5A所示,第一带宽为***为第一信号分配的初始带宽(也称第一信号的全带宽),即图5A中A至C之间的频率资源;第二带宽指第一信号的小带宽或能够恢复第一信号的最小带宽,即图5A中A至B之间的频率资源;BW表示第一带宽与第二带宽的差值,即图5A中B至C之间的频率资源。Further, as shown in Figure 5A, the first bandwidth is the initial bandwidth allocated by the system to the first signal (also called the full bandwidth of the first signal), that is, the frequency resource between A and C in Figure 5A; the second bandwidth refers to the small bandwidth of the first signal or the minimum bandwidth that can restore the first signal, that is, the frequency resource between A and B in Figure 5A; BW represents the difference between the first bandwidth and the second bandwidth, that is, the frequency resource between B and C in Figure 5A.
其中,BW的数值可通过以下几种方式中的至少一项确定:The value of BW can be determined by at least one of the following methods:
1)协议预定义;1) Protocol pre-definition;
2)网络侧设备配置;2) Network side equipment configuration;
3)根据所述第一带宽的值和所述第二带宽的值确定;3) determined according to the value of the first bandwidth and the value of the second bandwidth;
4)根据所述第一带宽的值和比例系数确定;4) Determined according to the value of the first bandwidth and the proportionality coefficient;
5)根据所述第二带宽的值和比例系数确定;5) determined according to the value of the second bandwidth and the proportionality coefficient;
6)根据上一次传输的第一信号占用的带宽确定;6) Determined according to the bandwidth occupied by the first signal transmitted last time;
7)根据所述终端上报的参数值确定。7) Determined according to the parameter value reported by the terminal.
其中,所述比例系数为所述第二带宽在所述第一带宽的占用比例(比如80%);
所述终端上报的参数值包括与所述第一信号的接收功率有关的参数,比如,WUS在某些频点的接收功率信息,具体如,终端中的低通滤波器的3dB截止频率,接收功率低于第一门限的目标频点及接收功率信息,等等。The proportional coefficient is the proportion of the second bandwidth to the first bandwidth (for example, 80%); The parameter values reported by the terminal include parameters related to the receiving power of the first signal, such as the receiving power information of WUS at certain frequencies, specifically, the 3dB cutoff frequency of the low-pass filter in the terminal, the target frequency and receiving power information where the receiving power is lower than the first threshold, and so on.
进一步地,可采用下述公式(即上文中的公式(1))将第二信号映射至相应的频域资源,得到所述第一信号:
Furthermore, the second signal may be mapped to the corresponding frequency domain resource using the following formula (i.e., formula (1) above) to obtain the first signal:
Furthermore, the second signal may be mapped to the corresponding frequency domain resource using the following formula (i.e., formula (1) above) to obtain the first signal:
其中,y表示所述第一信号,xn表示所述第二信号,N表示所述第二信号的长度,Mlayer,symbol表示映射的目标层和目标符号,k表示所述第一信号的频域资源映射位置,k=k0,k0+1,…,k0+Msc-bw-1,k0表示所述第一信号的频域资源映射的起始位置,k0+Msc-bw-1表示所述第一信号的频域资源映射的结束位置,Msc表示所述第一带宽,bw表示所述第一数值,wn,i表示傅里叶矩阵中对应位置的矩阵元素。Among them, y represents the first signal, xn represents the second signal, N represents the length of the second signal, Mlayer ,symbol represents the mapped target layer and target symbol, k represents the frequency domain resource mapping position of the first signal, k= k0 , k0 +1,…, k0 + Msc -bw-1, k0 represents the starting position of the frequency domain resource mapping of the first signal, k0 + Msc -bw-1 represents the ending position of the frequency domain resource mapping of the first signal, Msc represents the first bandwidth, bw represents the first value, and wn,i represents the matrix elements at the corresponding positions in the Fourier matrix.
从上述公式可以看出,若bw(第一数值)的取值不同,将第二信号映射至相应的频域资源得到的第一信号所占的频域资源大小也不同,下面列举两种情况:It can be seen from the above formula that if the value of bw (first value) is different, the size of the frequency domain resource occupied by the first signal obtained by mapping the second signal to the corresponding frequency domain resource is also different. Two cases are listed below:
情况1(case1):当bw=0时,第一信号在全带宽上映射,即第一信号的实际映射带宽(实际占用的带宽)与第一带宽相等,如图5A所示,y占用了第一带宽中的全部频域资源。Case 1: When bw=0, the first signal is mapped on the full bandwidth, that is, the actual mapping bandwidth (actual occupied bandwidth) of the first signal is equal to the first bandwidth, as shown in FIG5A , y occupies all frequency domain resources in the first bandwidth.
情况2(case2):当bw=0.5*BW时,第一信号的实际映射带宽仅占第一带宽的一部分,如图5B所示,y占用了第一带宽中的低频部分的频域资源。Case 2: When bw=0.5*BW, the actual mapping bandwidth of the first signal occupies only a part of the first bandwidth. As shown in FIG5B , y occupies the frequency domain resources of the low-frequency part in the first bandwidth.
在上述情况2中,虽然第一信号的实际映射带宽变窄了,但是保留了大部分频率,摒弃部分高频,以保证第一信号的接收端对所述第一信号的解调性能。这是因为,第一带宽内的部分高频(靠近第一带宽的结束位置的部分高频)对于第一信号的波形的影响体现在波形的细节,没有这部分频率,同样能够保留波形的整体轮廓信息,所以这种资源映射方式,可以在保证第一信号的解调性能的同时,节省频域资源,提升频域资源利用率。In the above situation 2, although the actual mapping bandwidth of the first signal is narrowed, most of the frequencies are retained and some high frequencies are discarded to ensure the demodulation performance of the first signal at the receiving end of the first signal. This is because the influence of some high frequencies within the first bandwidth (some high frequencies close to the end position of the first bandwidth) on the waveform of the first signal is reflected in the details of the waveform. Without this part of the frequency, the overall contour information of the waveform can also be retained. Therefore, this resource mapping method can save frequency domain resources and improve the utilization rate of frequency domain resources while ensuring the demodulation performance of the first signal.
实施例二Embodiment 2
如果第一信号是采用上述实施例所述的方式生成的(通过上文的公式(1)映射得到的),则在终端这一侧,第一信号经过低通滤波后,有可能会造成一部分有用信号在低通滤波器的滤波范围之外,从而导致了第一信号的接收功率的降低,具体如图6A所示。If the first signal is generated in the manner described in the above embodiment (obtained by mapping according to the above formula (1)), then on the terminal side, after the first signal is low-pass filtered, it is possible that a portion of the useful signal is outside the filtering range of the low-pass filter, thereby resulting in a reduction in the receiving power of the first signal, as specifically shown in FIG6A.
因此,在网络侧设备生成第一信号时,可以将这种情况考虑进去,采用下述公式(上文中的公式(2)的一种实现方式,F_Offset=Msc/2将第二信号映射至相应的频域资源,得到所述第一信号:
Therefore, when the network side device generates the first signal, this situation can be taken into consideration, and the second signal can be mapped to the corresponding frequency domain resource using the following formula (one implementation of the formula (2) above, F_Offset = Msc /2) to obtain the first signal:
Therefore, when the network side device generates the first signal, this situation can be taken into consideration, and the second signal can be mapped to the corresponding frequency domain resource using the following formula (one implementation of the formula (2) above, F_Offset = Msc /2) to obtain the first signal:
其中,y表示所述第一信号,xn表示所述第二信号,N表示所述第二信号的长度,
Mlayer,symbol表示映射的目标层和目标符号,k表示所述第一信号的频域资源映射位置,k=k0,k0+1,…,k0+Msc-bw-1,k0表示所述第一信号的频域资源映射的起始位置,k0+Msc-bw-1表示所述第一信号的频域资源映射的结束位置,Msc表示所述第一带宽,bw表示所述第一数值,wn,i表示傅里叶矩阵中对应位置的矩阵元素。Wherein, y represents the first signal, xn represents the second signal, and N represents the length of the second signal. M layer,symbol represents the mapped target layer and target symbol, k represents the frequency domain resource mapping position of the first signal, k=k 0 , k 0 +1,…, k 0 +M sc -bw-1, k 0 represents the starting position of the frequency domain resource mapping of the first signal, k 0 +M sc -bw-1 represents the ending position of the frequency domain resource mapping of the first signal, M sc represents the first bandwidth, bw represents the first value, and w n,i represents the matrix elements at the corresponding positions in the Fourier matrix.
经过上述公式映射得到的第一信号,在终端这一侧的接收波形如图6B所示(图6B中的实线所示),从图6B可以看出,第一信号的较高功率的频率部分能够位于低通滤波器的滤波范围之内,从而可以避免部分有用信号功率的浪费,保证了第一信号的接收功率的强度,从而保证了第一信号的解调性能。The first signal obtained by mapping the above formula has a received waveform on the terminal side as shown in Figure 6B (shown by the solid line in Figure 6B). It can be seen from Figure 6B that the higher-power frequency portion of the first signal can be within the filtering range of the low-pass filter, thereby avoiding the waste of part of the useful signal power and ensuring the strength of the received power of the first signal, thereby ensuring the demodulation performance of the first signal.
实施例三Embodiment 3
如果第一信号是采用上述实施例所述的方式生成的(通过上文的公式(1)映射得到的),则在终端这一侧,第一信号经过低通滤波后,有可能会造成一部分有用信号在低通滤波器的3dB截止频率fc之外,从而导致了第一信号的接收功率的降低,具体如图7A所示。If the first signal is generated in the manner described in the above embodiment (obtained by mapping according to formula (1) above), then on the terminal side, after the first signal is low-pass filtered, it is possible that a portion of the useful signal is outside the 3dB cutoff frequency fc of the low-pass filter, thereby resulting in a reduction in the received power of the first signal, as specifically shown in FIG7A.
因此,在网络侧设备生成第一信号时,可以将这种情况考虑进去,采用下述公式(上文中的公式(2)的另一种实现方式,F_Offset=Msc/2)将第二信号映射至相应的频域资源,得到所述第一信号:
Therefore, when the network side device generates the first signal, this situation can be taken into consideration, and the second signal can be mapped to the corresponding frequency domain resource using the following formula (another implementation of the above formula (2), F_Offset =M sc /2) to obtain the first signal:
Therefore, when the network side device generates the first signal, this situation can be taken into consideration, and the second signal can be mapped to the corresponding frequency domain resource using the following formula (another implementation of the above formula (2), F_Offset =M sc /2) to obtain the first signal:
其中,y表示所述第一信号,xn表示所述第二信号,N表示所述第二信号的长度,Mlayer,symbol表示映射的目标层和目标符号,k表示所述第一信号的频域资源映射位置,k=k0,k0+1,…,k0+Msc-bw-1,k0表示所述第一信号的频域资源映射的起始位置,k0+Msc-bw-1表示所述第一信号的频域资源映射的结束位置,Msc表示所述第一带宽,bw表示所述第一数值,wn,i表示傅里叶矩阵中对应位置的矩阵元素。Among them, y represents the first signal, xn represents the second signal, N represents the length of the second signal, Mlayer ,symbol represents the mapped target layer and target symbol, k represents the frequency domain resource mapping position of the first signal, k= k0 , k0 +1,…, k0 + Msc -bw-1, k0 represents the starting position of the frequency domain resource mapping of the first signal, k0 + Msc -bw-1 represents the ending position of the frequency domain resource mapping of the first signal, Msc represents the first bandwidth, bw represents the first value, and wn,i represents the matrix elements at the corresponding positions in the Fourier matrix.
经过上述公式映射得到的第一信号,在终端这一侧的接收波形如图7B所示(图7B中的实线所示),从图7B可以看出,第一信号的较高功率的频率部分能够位于低通滤波器的滤波范围之内,从而可以避免部分有用信号功率的浪费,保证了第一信号的接收功率的强度,从而保证了第一信号的解调性能。The first signal obtained by mapping the above formula has a received waveform on the terminal side as shown in Figure 7B (shown by the solid line in Figure 7B). It can be seen from Figure 7B that the higher-power frequency portion of the first signal can be within the filtering range of the low-pass filter, thereby avoiding the waste of part of the useful signal power and ensuring the strength of the received power of the first signal, thereby ensuring the demodulation performance of the first signal.
在上述一种信号发送方法的基础上,本申请实施例还提供了一种信号接收方法,下面进行说明。Based on the above-mentioned signal sending method, an embodiment of the present application also provides a signal receiving method, which is described below.
如图8所示,本申请实施例提供的一种信号接收方法,可以包括:As shown in FIG8 , a signal receiving method provided in an embodiment of the present application may include:
步骤801、终端接收第一信号,其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Step 801, the terminal receives a first signal, wherein the first signal is obtained by mapping a second signal to a corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
关于得到第一信号的细节,可参照上文对一种信号发送方法的介绍,此处不做重复描述。For details on obtaining the first signal, please refer to the above introduction to a signal sending method, which will not be repeated here.
可选的,若终端接收到的所述第一信号的实际映射带宽与所述第一信号的调度带宽不同,则所述终端接收第一信号可包括下述任一项:Optionally, if an actual mapping bandwidth of the first signal received by the terminal is different from a scheduled bandwidth of the first signal, the terminal receiving the first signal may include any of the following:
1)按照所述第一信号的调度带宽接收所述第一信号;1) receiving the first signal according to the scheduling bandwidth of the first signal;
2)按照接收到的所述第一信号的实际映射带宽接收所述第一信号。2) receiving the first signal according to an actual mapping bandwidth of the received first signal.
其中,所述第一信号的调度带宽一般为上述第一带宽,即所述第一信号的调度带宽为***为所述第一信号分配的初始带宽;所述第一信号的实际映射带宽即根据所述频域资源映射位置映射得到的第一信号实际占用的带宽,所述第一信号的实际映射带宽的大小为所述第一带宽与所述第一数值的差值。Among them, the scheduling bandwidth of the first signal is generally the above-mentioned first bandwidth, that is, the scheduling bandwidth of the first signal is the initial bandwidth allocated by the system to the first signal; the actual mapping bandwidth of the first signal is the bandwidth actually occupied by the first signal obtained by mapping the frequency domain resource mapping position, and the size of the actual mapping bandwidth of the first signal is the difference between the first bandwidth and the first value.
可以理解,如果终端按照接收到的所述第一信号的实际映射带宽接收所述第一信号,则可以更加准确地解调第一信号得到第二信号。It can be understood that if the terminal receives the first signal according to the actual mapping bandwidth of the received first signal, the first signal can be demodulated more accurately to obtain the second signal.
需要说明的是,图3所示实施例提供的信号发送方法,其执行主体可以为信号发送装置。本申请实施例中以信号发送装置执行信号发送方法为例,说明本申请实施例提供的信号发送装置。图8所示实施例提供的信号接收方法,其执行主体可以为信号接收装置。本申请实施例中以信号接收装置执行信号接收方法为例,说明本申请实施例提供的信号接收装置。It should be noted that the signal sending method provided in the embodiment shown in FIG. 3 may be executed by a signal sending device. In the embodiment of the present application, the signal sending device provided in the embodiment of the present application is taken as an example to execute the signal sending method. The signal receiving method provided in the embodiment shown in FIG. 8 may be executed by a signal receiving device. In the embodiment of the present application, the signal receiving device provided in the embodiment of the present application is taken as an example to execute the signal receiving method.
下面结合附图对本申请实施例提供的一种信号发送装置进行说明。由于本申请实施例提供的一种信号发送装置与本申请实施例提供的一种信号发送方法对应,因此对本申请实施例提供的信号发送装置描述的较为简要,详细内容可参考上文方法实施例部分的介绍。A signal sending device provided in an embodiment of the present application is described below in conjunction with the accompanying drawings. Since a signal sending device provided in an embodiment of the present application corresponds to a signal sending method provided in an embodiment of the present application, the description of the signal sending device provided in an embodiment of the present application is relatively brief, and the details can be referred to the introduction of the method embodiment part above.
如图9所示,本申请的一个实施例提供了一种信号发送装置900,装置900可包括:位置确定模块901、资源映射模块902和信号发送模块903。As shown in FIG. 9 , an embodiment of the present application provides a signal sending device 900 , and the device 900 may include: a location determination module 901 , a resource mapping module 902 , and a signal sending module 903 .
位置确定模块901,用于根据第一数值确定第一信号的频域资源映射位置,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。The position determination module 901 is used to determine the frequency domain resource mapping position of the first signal according to a first numerical value, wherein the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
一般而言,所述第一信号的频域资源映射位置包括频域资源映射的起始位置、频域资源映射的结束位置以及起始位置和结束位置之间的位置,所述第一信号映射的频域资源大小为起始位置和结束位置之间的频域宽度。Generally speaking, the frequency domain resource mapping position of the first signal includes the starting position of the frequency domain resource mapping, the ending position of the frequency domain resource mapping, and the position between the starting position and the ending position, and the frequency domain resource size mapped by the first signal is the frequency domain width between the starting position and the ending position.
作为一个例子,所述位置确定模块901可用于:根据终端的无线资源控制(Radio Resource Control,RRC)状态,确定所述第一信号的频域资源映射的起始位置;并根据所述起始位置、所述第一数值和所述第一带宽,确定所述第一信号的频域资源映射的结束位置。As an example, the position determination module 901 can be used to: determine the starting position of the frequency domain resource mapping of the first signal according to the radio resource control (Radio Resource Control, RRC) state of the terminal; and determine the ending position of the frequency domain resource mapping of the first signal according to the starting position, the first value and the first bandwidth.
由于在所述第一信号的频域资源映射的起始位置和所述第一信号映射的频域资源大小(所述第一带宽与所述第一数值的差值)已知的情况下,所述第一信号映射的频域资源映射的结束位置便可通过简单的计算得知,因此,确定所述第一信号的频域资源映射的起始位置是关键。Since the starting position of the frequency domain resource mapping of the first signal and the frequency domain resource size of the first signal mapping (the difference between the first bandwidth and the first value) are known, the ending position of the frequency domain resource mapping of the first signal mapping can be obtained through simple calculation. Therefore, determining the starting position of the frequency domain resource mapping of the first signal is the key.
进一步地,作为一个例子,所述位置确定模块901可用于:根据终端的RRC状态确定参考位置;并根据所述参考位置确定所述第一信号的频域资源映射的起始位置。Further, as an example, the position determination module 901 may be used to: determine a reference position according to an RRC state of the terminal; and determine a starting position of frequency domain resource mapping of the first signal according to the reference position.
其中,终端的RRC状态与所述参考位置的关系,可包括:The relationship between the RRC state of the terminal and the reference position may include:
1)在所述终端的RRC状态为空闲(idle)状态或去激活(inactive)状态的情况下,所述参考位置可以包括下述至少一项:1) When the RRC state of the terminal is an idle state or an inactive state, the reference location may include at least one of the following:
A.参考点A(point A);A. Reference point A (point A);
B.***为所述第一信号分配的初始下行带宽部分(initial DownLink bandwidth part,initial DL BWP)的下边界。B. The lower boundary of the initial downlink bandwidth part (initial DownLink bandwidth part, initial DL BWP) allocated by the system to the first signal.
2)在所述终端的RRC状态为连接(connected)状态的情况下,所述参考位置可以包括下述至少一项:2) When the RRC state of the terminal is a connected state, the reference location may include at least one of the following:
A.参考点A(point A);A. Reference point A (point A);
B.***为所述第一信号分配的初始下行带宽部分(initial DownLink bandwidth part,initial DL BWP)的下边界。B. The lower boundary of the initial downlink bandwidth part (initial DownLink bandwidth part, initial DL BWP) allocated by the system to the first signal.
C.***为所述第一信号分配的激活下行带宽部分(active DL BWP)的下边界。C. The lower boundary of the activated downlink bandwidth part (active DL BWP) allocated by the system for the first signal.
上述参考点A的指示方式可包括但不限于下述至少一项:The indication method of the reference point A may include but is not limited to at least one of the following:
1)参考点A相对于指定频域位置的偏移,例如,公共资源块(common resource block,CRB)相对于参考点A的偏移(offsetToPointA);1) The offset of reference point A relative to a specified frequency domain position, for example, the offset of a common resource block (CRB) relative to reference point A (offsetToPointA);
2)参考点A在频域的绝对位置(absoluteFrequencyPointA)。2) The absolute position of reference point A in the frequency domain (absoluteFrequencyPointA).
上述初始下行带宽部分的下边界或上述激活下行带宽部分的下边界的指示方式可以为:用物理资源块(physical resource block,PRB)来指示。The lower boundary of the above-mentioned initial downlink bandwidth part or the lower boundary of the above-mentioned activated downlink bandwidth part can be indicated by using a physical resource block (PRB).
进一步地,所述位置确定模块901可用于:确定所述第一信号的频域资源映射的起始位置相对于所述参考位置的偏移。该偏移的偏移量,可由协议预定义、网络侧设备配置等方式来确定。Furthermore, the position determination module 901 may be used to determine the offset of the starting position of the frequency domain resource mapping of the first signal relative to the reference position. The offset amount may be determined by protocol pre-definition, network side device configuration, and the like.
需要说明的是,除了终端的RRC状态,也可以根据其他因素确定第一信号的资源映射的起始位置,保证第一信号的资源映射的起始位置和结束位置位于第一带宽之内即可,本申请实施例对此不做限制。It should be noted that in addition to the RRC state of the terminal, the starting position of the resource mapping of the first signal can also be determined based on other factors to ensure that the starting position and ending position of the resource mapping of the first signal are within the first bandwidth. The embodiment of the present application does not limit this.
可选的,在确定第一信号的频域资源映射位置时,尽可能地利用第一带宽内的相对低频的部分,摒弃部分高频,以保证第一信号的接收端对所述第一信号的解调性能。这是因为,第一带宽内的部分高频(靠近第一带宽的结束位置的部分高频)对于第一信号的波形的影响体现在波形的细节,没有这部分频率,同样能够保留波形的整体轮廓信息,所以这种资源映射方式,可以在保证第一信号的解调性能的同时,节省频域资源,提升频域资源利用率。Optionally, when determining the frequency domain resource mapping position of the first signal, the relatively low-frequency part within the first bandwidth is used as much as possible, and some high frequencies are discarded to ensure the demodulation performance of the first signal at the receiving end of the first signal. This is because the influence of some high frequencies within the first bandwidth (some high frequencies close to the end position of the first bandwidth) on the waveform of the first signal is reflected in the details of the waveform. Without this part of the frequency, the overall contour information of the waveform can also be retained. Therefore, this resource mapping method can save frequency domain resources and improve the utilization rate of frequency domain resources while ensuring the demodulation performance of the first signal.
资源映射模块902,用于根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的WUS序列。The resource mapping module 902 is used to map the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a WUS sequence to be transmitted.
可以理解,在确定出第一信号的频域资源映射位置之后,将第二信号映射至这些频域资源映射位置对应的频域资源,即可得到第一信息。It can be understood that after the frequency domain resource mapping positions of the first signal are determined, the second signal is mapped to the frequency domain resources corresponding to these frequency domain resource mapping positions, so as to obtain the first information.
作为一个例子,上述资源映射模块902具体可用于:根据第一映射公式将第二信号映射至相应的频域资源,得到所述第一信号。As an example, the resource mapping module 902 may be specifically configured to: map the second signal to a corresponding frequency domain resource according to a first mapping formula to obtain the first signal.
其中,所述第一映射公式可包括但不限于下述任一项:
The first mapping formula may include but is not limited to any of the following:
The first mapping formula may include but is not limited to any of the following:
在上述公式中,y表示所述第一信号,xn表示所述第二信号,N表示所述第二信号的长度,Mlayer,symbol表示映射的目标层(layer)和目标符号(symbol),k表示所述第一信号的频域资源映射位置,k=k0,k0+1,…,k0+Msc-bw-1,k0表示所述第一信号的频域资源映射的起始位置,k0+Msc-bw-1表示所述第一信号的频域资源映射的结束位置,k’表示傅里叶变换对应的子载波位置,Msc表示所述第一带宽,bw表示所述第一数值,wn,i表示傅里叶矩阵中对应位置的矩阵元素。In the above formula, y represents the first signal, xn represents the second signal, N represents the length of the second signal, Mlayer ,symbol represents the mapped target layer and target symbol, k represents the frequency domain resource mapping position of the first signal, k= k0 , k0 +1,…, k0 + Msc- bw-1, k0 represents the starting position of the frequency domain resource mapping of the first signal, k0 + Msc -bw-1 represents the ending position of the frequency domain resource mapping of the first signal, k' represents the subcarrier position corresponding to the Fourier transform, Msc represents the first bandwidth, bw represents the first value, and wn,i represents the matrix elements of the corresponding positions in the Fourier matrix.
可选的,上述资源映射模块902具体可用于:根据第一映射公式将第二信号映射至相应的频域资源,并根据第二数值对映射结果进行旋转(ifftshift),得到所述第一信号,其中,所述第二数值为相对于所述第一带宽的偏移量F_Offset,例如,F_Offset可以为第一带宽的二分之一。Optionally, the resource mapping module 902 may be specifically used to: map the second signal to the corresponding frequency domain resource according to the first mapping formula, and rotate (ifftshift) the mapping result according to a second numerical value to obtain the first signal, wherein the second numerical value is an offset F_Offset relative to the first bandwidth, for example, F_Offset may be half of the first bandwidth.
之所以在对映射结果进行旋转时引入第二数值,是因为旋转参考点的不同导致旋转后的映射结果不是从零频点开始的。为了弥补旋转之后的映射结果不是从零频点开始的缺陷,可以旋转时加上或者减去一个常数(上述第二数值)。如果旋转参考点选取的比较合适,像上述公式(1)和(3)所示的映射方式,就可以直接通过旋转,将频域资源频移到零频点。The reason why the second value is introduced when rotating the mapping result is that the mapping result after rotation does not start from the zero frequency point due to the different rotation reference points. In order to make up for the defect that the mapping result after rotation does not start from the zero frequency point, a constant (the above second value) can be added or subtracted during rotation. If the rotation reference point is selected appropriately, like the mapping method shown in the above formulas (1) and (3), the frequency domain resources can be directly shifted to the zero frequency point by rotation.
可选的,上述第二信号是根据第三信号得到的,其中,所述第三信号为待传输的原始比特序列。具体的,可将待传输的原始比特序列(第三信号)与过采样r相乘,形成过采样序列,该过采样序列经过网络侧设备指定的编码方式进行编码,然后经过加扰之后,形成第二信号序列。其中,所述编码方式可以是曼彻斯特编码和重复编码等方式中的一种,加扰的方式可以是ZC序列、gold序列、m序列和二进制相移键控(binary phase shift keying,BPSK)等方式中的一种。Optionally, the second signal is obtained based on the third signal, wherein the third signal is the original bit sequence to be transmitted. Specifically, the original bit sequence to be transmitted (the third signal) can be multiplied by the oversampling r to form an oversampling sequence, which is encoded by a coding method specified by the network side device, and then scrambled to form a second signal sequence. The coding method can be one of Manchester coding and repetition coding, and the scrambling method can be one of ZC sequence, gold sequence, m sequence and binary phase shift keying (BPSK).
可选的,所述第三信号的波形可以为在一个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号中传输的至少一个码片波形。Optionally, the waveform of the third signal may be at least one code chip waveform transmitted in an orthogonal frequency division multiplexing (OFDM) symbol.
进一步的,所述第三信号的波形可包括但不限于下述任一项:Furthermore, the waveform of the third signal may include but is not limited to any of the following:
多载波开关键控(On-Off Keying,OOK)波形;Multi-carrier On-Off Keying (OOK) waveform;
多载波振幅键控(Amplitude Shift Keying,ASK)波形;Multi-carrier Amplitude Shift Keying (ASK) waveform;
多载波频移键控(Frequency Shift Keying,FSK)波形。Multi-carrier Frequency Shift Keying (FSK) waveform.
可选的,所述第一带宽与所述第二带宽的差值的确定方式包括下述至少一项:Optionally, a method for determining the difference between the first bandwidth and the second bandwidth includes at least one of the following:
1)协议预定义;1) Protocol pre-definition;
2)网络侧设备配置;2) Network side equipment configuration;
3)根据所述第一带宽的值和所述第二带宽的值确定;3) determined according to the value of the first bandwidth and the value of the second bandwidth;
4)根据所述第一带宽的值和比例系数确定;4) Determined according to the value of the first bandwidth and the proportionality coefficient;
5)根据所述第二带宽的值和比例系数确定;5) determined according to the value of the second bandwidth and the proportionality coefficient;
6)根据上一次传输的第一信号占用的带宽确定;6) Determined according to the bandwidth occupied by the first signal transmitted last time;
7)根据所述终端上报的参数值确定。7) Determined according to the parameter value reported by the terminal.
其中,所述比例系数为所述第二带宽在所述第一带宽的占用比例(比如80%);所述终端上报的参数值包括与所述第一信号的接收功率有关的参数,比如,WUS在某些频点的接收功率信息,具体如,终端中的低通滤波器的3dB截止频率,接收功率低于第一门限的目标频点及接收功率信息,等等。Among them, the proportional coefficient is the occupancy ratio of the second bandwidth to the first bandwidth (for example, 80%); the parameter value reported by the terminal includes parameters related to the receiving power of the first signal, such as the receiving power information of WUS at certain frequencies, specifically, the 3dB cutoff frequency of the low-pass filter in the terminal, the target frequency and receiving power information where the receiving power is lower than the first threshold, and so on.
信号发送模块903,用于发送所述第一信号。The signal sending module 903 is used to send the first signal.
具体的,信号发送模块903可将第一信号发送至终端,以唤醒终端中的主通信模块。Specifically, the signal sending module 903 may send a first signal to the terminal to wake up the main communication module in the terminal.
本申请实施例提出的一种信号发送装置,可根据第一数值确定第一信号的频域资源映射位置,并根据所述频域资源映射位置将第二信号(待传输的唤醒信号WUS序列)映射至相应的频域资源,得到所述第一信号,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。由于所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值,因此这种映射方式使得第一信号占用的带宽小于第一带宽,从而减少第一信号对频率资源的占用,避免频率资源浪费,提高频谱利用效率。A signal sending device proposed in an embodiment of the present application can determine the frequency domain resource mapping position of the first signal according to a first numerical value, and map the second signal (the wake-up signal WUS sequence to be transmitted) to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value. Since the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value, this mapping method makes the bandwidth occupied by the first signal smaller than the first bandwidth, thereby reducing the occupation of frequency resources by the first signal, avoiding waste of frequency resources, and improving spectrum utilization efficiency.
此外,在确定第一信号的频域资源映射位置时,尽可能多地利用第一带宽内的相对低频的部分,摒弃部分高频,以保证第一信号的接收端对所述第一信号的解调性能。这是因为,第一带宽内的部分高频(靠近第一带宽的结束位置的部分高频)对于第一信号的波形的影响体现在波形的细节,没有这部分频率,同样能够保留波形的整体轮廓信息,所以这种资源映射方式,可以在保证第一信号的解调性能的同时,节省频域资源,提升频域资源利用率。In addition, when determining the frequency domain resource mapping position of the first signal, the relatively low-frequency part within the first bandwidth is used as much as possible, and some high frequencies are discarded to ensure the demodulation performance of the first signal by the receiving end of the first signal. This is because the influence of some high frequencies within the first bandwidth (some high frequencies close to the end position of the first bandwidth) on the waveform of the first signal is reflected in the details of the waveform. Without this part of the frequency, the overall contour information of the waveform can also be retained. Therefore, this resource mapping method can save frequency domain resources and improve the utilization rate of frequency domain resources while ensuring the demodulation performance of the first signal.
本申请实施例中的信号发送装置900可以是电子设备,例如具有操作***的电子设备,也可以是电子设备中的部件,例如集成电路或芯片,该电子设备可以是网络侧设备。The signal sending device 900 in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a network side device.
如图10所示,本申请的一个实施例提供了一种信号接收装置1000,装置1000可包括:信号接收模块1001。As shown in FIG. 10 , an embodiment of the present application provides a signal receiving device 1000 , and the device 1000 may include: a signal receiving module 1001 .
信号接收模块1001,用于接收第一信号。The signal receiving module 1001 is configured to receive a first signal.
其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Among them, the first signal is obtained by mapping the second signal to the corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
可选的,若信号接收模块1001接收到的所述第一信号的实际映射带宽与所述第一信号的调度带宽不同,则所述信号接收模块1001可根据下述任一项接收第一信号:Optionally, if the actual mapping bandwidth of the first signal received by the signal receiving module 1001 is different from the scheduling bandwidth of the first signal, the signal receiving module 1001 may receive the first signal according to any one of the following:
1)按照所述第一信号的调度带宽接收所述第一信号;1) receiving the first signal according to the scheduling bandwidth of the first signal;
2)按照接收到的所述第一信号的实际映射带宽接收所述第一信号。2) receiving the first signal according to an actual mapping bandwidth of the received first signal.
其中,所述第一信号的调度带宽一般为上述第一带宽,即所述第一信号的调度带宽为***为所述第一信号分配的初始带宽;所述第一信号的实际映射带宽即根据所述频域资源映射位置映射得到的第一信号实际占用的带宽,所述第一信号的实际映射带宽的大小为所述第一带宽与所述第一数值的差值。Among them, the scheduling bandwidth of the first signal is generally the above-mentioned first bandwidth, that is, the scheduling bandwidth of the first signal is the initial bandwidth allocated by the system to the first signal; the actual mapping bandwidth of the first signal is the bandwidth actually occupied by the first signal obtained by mapping the frequency domain resource mapping position, and the size of the actual mapping bandwidth of the first signal is the difference between the first bandwidth and the first value.
可以理解,如果信号接收模块1001按照接收到的所述第一信号的实际映射带宽接收所述第一信号,则可以更加准确地解调第一信号得到第二信号。It can be understood that if the signal receiving module 1001 receives the first signal according to the actual mapping bandwidth of the received first signal, the first signal can be demodulated more accurately to obtain the second signal.
本申请实施例中的信号接收装置1000可以是电子设备,例如具有操作***的电子设备,也可以是电子设备中的部件,例如集成电路或芯片,该电子设备可以是终端设备。The signal receiving device 1000 in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal device.
如图11所示,本申请实施例还提供一种通信设备1100,包括处理器1101和存储器1102,存储器1102上存储有可在所述处理器1101上运行的程序或指令,例如,该通信设备1100为网络侧设备时,该程序或指令被处理器1101执行时实现上述图3所示的信号发送方法实施例的各个步骤,且能达到相同的技术效果。该通信设备1100为终端设备时,该程序或指令被处理器1101执行时实现上述图8所示的信号接收方法实施例的各个步骤,且能达到相同的技术效果。As shown in FIG11 , the embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102, wherein the memory 1102 stores a program or instruction that can be run on the processor 1101. For example, when the communication device 1100 is a network side device, the program or instruction is executed by the processor 1101 to implement the various steps of the signal transmission method embodiment shown in FIG3 above, and can achieve the same technical effect. When the communication device 1100 is a terminal device, the program or instruction is executed by the processor 1101 to implement the various steps of the signal receiving method embodiment shown in FIG8 above, and can achieve the same technical effect.
本申请实施例还提供一种终端设备,所述终端设备用于实现上述图8对应的信号接收方法实施例的各个步骤。An embodiment of the present application also provides a terminal device, which is used to implement the various steps of the signal receiving method embodiment corresponding to the above-mentioned Figure 8.
本申请实施例还提供一种终端,包括通信接口,所述通信接口用于接收第一信号;其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。该终端实施例与上述终端侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图12为实现本申请实施例的一种终端的硬件结构示意图。The embodiment of the present application also provides a terminal, including a communication interface, wherein the communication interface is used to receive a first signal; wherein the first signal is obtained by mapping the second signal to the corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first value, the first value is greater than or equal to zero, and the first value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped by the first signal is the difference between the first bandwidth and the first value. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the terminal embodiment, and can achieve the same technical effect. Specifically, Figure 12 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
该终端1200包括但不限于:射频单元1201、网络模块1202、音频输出单元1203、输入单元1204、传感器1205、显示单元1206、用户输入单元1207、接口单元1208、存储器1209以及处理器1210等中的至少部分部件。The terminal 1200 includes but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209 and at least some of the components of the processor 1210.
本领域技术人员可以理解,终端1200还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理***与处理器1210逻辑相连,从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。图12中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。Those skilled in the art will appreciate that the terminal 1200 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1210 through a power management system, so as to implement functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG12 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
应理解的是,本申请实施例中,输入单元1204可以包括图形处理单元(Graphics Processing Unit,GPU)12041和麦克风12042,图形处理器12041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1206可包括显示面板12061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板12061。用户输入单元1207包括触控面板12071以及其他输入设备12072中的至少一种。触控面板12071,也称为触摸屏。触控面板12071可包括触摸检测装置和触摸控制器两个部分。其他输入设备12072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。It should be understood that in the embodiment of the present application, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processor 12041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1207 includes a touch panel 12071 and at least one of other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include two parts: a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
本申请实施例中,射频单元1201接收来自网络侧设备的下行数据后,可以传输给处理器1210进行处理;另外,射频单元1201可以向网络侧设备发送上行数据。通常,射频单元1201包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1201 can transmit the data to the processor 1210 for processing; in addition, the RF unit 1201 can send uplink data to the network side device. Generally, the RF unit 1201 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
存储器1209可用于存储软件程序或指令以及各种数据。存储器1209可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作***、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1209可以包括易失性存储器或非易失性存储器,或者,存储器1209可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器1209包括但不限于这些和任意其它适合类型的存储器。The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1209 may include a volatile memory or a non-volatile memory, or the memory 1209 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
处理器1210可包括一个或多个处理单元;可选的,处理器1210集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作***、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1210中。The processor 1210 may include one or more processing units; optionally, the processor 1210 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1210.
其中,射频单元1201,用于接收第一信号,其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Among them, the radio frequency unit 1201 is used to receive a first signal, wherein the first signal is obtained by mapping the second signal to the corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, and the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
可以理解,如果终端按照接收到的所述第一信号的实际映射带宽接收所述第一信号,则可以更加准确地解调第一信号得到第二信号。It can be understood that if the terminal receives the first signal according to the actual mapping bandwidth of the received first signal, the first signal can be demodulated more accurately to obtain the second signal.
本申请实施例还提供一种网络侧设备,所述网络侧设备用于实现上述图3对应的信号发送方法实施例的各个步骤。The embodiment of the present application also provides a network side device, which is used to implement the various steps of the signal sending method embodiment corresponding to the above-mentioned Figure 3.
本申请实施例还提供一种网络侧设备,包括处理器和通信接口,其中,所述处理器用于根据第一数值确定第一信号的频域资源映射位置,并根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的唤醒信号WUS序列,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值;所述通信接口用于发送所述第一信号。An embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the processor is used to determine the frequency domain resource mapping position of the first signal according to a first numerical value, and map the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value; the communication interface is used to send the first signal.
具体地,本申请实施例还提供了一种网络侧设备。如图13所示,该网络侧设备1300包括:天线1301、射频装置1302、基带装置1303、处理器1304和存储器1305。天线1301与射频装置1302连接。在上行方向上,射频装置1302通过天线1301接收信息,将接收的信息发送给基带装置1303进行处理。在下行方向上,基带装置1303对要发送的信息进行处理,并发送给射频装置1302,射频装置1302对收到的信息进行处理后经过天线1301发送出去。Specifically, the embodiment of the present application also provides a network side device. As shown in Figure 13, the network side device 1300 includes: an antenna 1301, a radio frequency device 1302, a baseband device 1303, a processor 1304 and a memory 1305. The antenna 1301 is connected to the radio frequency device 1302. In the uplink direction, the radio frequency device 1302 receives information through the antenna 1301 and sends the received information to the baseband device 1303 for processing. In the downlink direction, the baseband device 1303 processes the information to be sent and sends it to the radio frequency device 1302. The radio frequency device 1302 processes the received information and sends it out through the antenna 1301.
以上实施例中网络侧设备执行的方法可以在基带装置1303中实现,该基带装置1303包括基带处理器。The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1303, which includes a baseband processor.
基带装置1303例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图130所示,其中一个芯片例如为基带处理器,通过总线接口与存储器1305连接,以调用存储器1305中的程序,执行以上方法实施例中所示的网络设备操作。The baseband device 1303 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 130, one of which is, for example, a baseband processor, which is connected to the memory 1305 through a bus interface to call the program in the memory 1305 and execute the network device operations shown in the above method embodiment.
该网络侧设备还可以包括网络接口1306,该接口例如为通用公共无线接口(common public radio interface,CPRI)。The network side device may also include a network interface 1306, which is, for example, a common public radio interface (CPRI).
具体地,本申请实施例的网络侧设备1300还包括:存储在存储器1305上并可在处理器1304上运行的指令或程序,处理器1304调用存储器1305中的指令或程序执行图3所示的方法,并达到相同的技术效果,为避免重复,故不在此赘述。Specifically, the network side device 1300 of the embodiment of the present application also includes: instructions or programs stored in the memory 1305 and executable on the processor 1304. The processor 1304 calls the instructions or programs in the memory 1305 to execute the method shown in Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述信号发送方法或信号接收方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned signal sending method or signal receiving method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述信号发送方法或信号接收方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned signal sending method or signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
应理解,本申请实施例提到的芯片还可以称为***级芯片,***芯片,芯片***或片上***芯片等。It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在非易失的存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述信号发送方法或信号接收方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。The embodiments of the present application further provide a computer program/program product, which is stored in a non-volatile storage medium. The computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned signal sending method or signal receiving method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
本申请实施例还提供了一种通信***,包括:网络侧设备和终端设备,所述网络侧设备可用于执行如上图3所示的信号发送方法的步骤,所述终端设备可用于执行如上图8所示的信号接收方法的步骤。An embodiment of the present application also provides a communication system, including: a network side device and a terminal device, wherein the network side device can be used to execute the steps of the signal sending method shown in FIG. 3 above, and the terminal device can be used to execute the steps of the signal receiving method shown in FIG. 8 above.
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对相关技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the relevant technology, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.) to execute the methods described in each embodiment of the present application.
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。
The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims (23)
- 一种信号发送方法,所述方法包括:A signal sending method, the method comprising:网络侧设备根据第一数值确定第一信号的频域资源映射位置,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值;The network side device determines the frequency domain resource mapping position of the first signal according to the first value, wherein the first value is greater than or equal to zero, and the first value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first value;所述网络侧设备根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的唤醒信号WUS序列;The network side device maps the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted;所述网络侧设备发送所述第一信号。The network side device sends the first signal.
- 根据权利要求1所述的方法,其中,所述网络侧设备根据第一数值确定第一信号的频域资源映射位置,包括:The method according to claim 1, wherein the network side device determines the frequency domain resource mapping position of the first signal according to the first value, comprising:所述网络侧设备根据终端的无线资源控制RRC状态,确定所述第一信号的频域资源映射的起始位置;The network side device determines the starting position of the frequency domain resource mapping of the first signal according to the radio resource control RRC state of the terminal;所述网络侧设备根据所述起始位置、所述第一数值和所述第一带宽,确定所述第一信号的频域资源映射的结束位置。The network-side device determines an end position of frequency domain resource mapping of the first signal according to the starting position, the first value, and the first bandwidth.
- 根据权利要求2所述的方法,其中,所述网络侧设备根据终端的无线资源控制RRC状态,确定所述第一信号的频域资源映射的起始位置,包括:The method according to claim 2, wherein the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the radio resource control RRC state of the terminal, comprising:所述网络侧设备根据终端的无线资源控制RRC状态确定参考位置;The network side device determines the reference location according to the radio resource control RRC state of the terminal;所述网络侧设备根据所述参考位置确定所述第一信号的频域资源映射的起始位置。The network side device determines a starting position of frequency domain resource mapping of the first signal according to the reference position.
- 根据权利要求3所述的方法,其中,在所述终端的RRC状态为空闲状态或去激活状态的情况下,所述参考位置包括下述至少一项:The method according to claim 3, wherein, when the RRC state of the terminal is an idle state or a deactivated state, the reference location includes at least one of the following:参考点A;Reference point A;***为所述第一信号分配的初始下行带宽部分的下边界。The lower boundary of the initial downlink bandwidth portion allocated by the system to the first signal.
- 根据权利要求3所述的方法,其中,在所述终端的RRC状态为连接状态的情况下,所述参考位置包括下述至少一项:The method according to claim 3, wherein, when the RRC state of the terminal is a connected state, the reference location includes at least one of the following:参考点A;Reference point A;***为所述第一信号分配的初始下行带宽部分的下边界;a lower boundary of an initial downlink bandwidth portion allocated by the system for the first signal;***为所述第一信号分配的激活下行带宽部分的下边界。A lower boundary of the activated downlink bandwidth portion allocated by the system to the first signal.
- 根据权利要求4或5所述的方法,其中,所述参考点A的指示方式包括下述至少一项:The method according to claim 4 or 5, wherein the indication method of the reference point A includes at least one of the following:参考点A相对于指定频域位置的偏移;The offset of reference point A relative to the specified frequency domain position;参考点A在频域的绝对位置。The absolute position of reference point A in the frequency domain.
- 根据权利要求3-5任一项所述的方法,其中,所述网络侧设备根据所述参考位置确定所述第一信号的频域资源映射的起始位置,包括:The method according to any one of claims 3 to 5, wherein the network side device determines the starting position of the frequency domain resource mapping of the first signal according to the reference position, comprising:所述网络侧设备确定所述第一信号的频域资源映射的起始位置相对于所述参考位置的偏移。The network-side device determines an offset of a starting position of frequency-domain resource mapping of the first signal relative to the reference position.
- 根据权利要求2所述的方法,其中,所述网络侧设备根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,包括:The method according to claim 2, wherein the network side device maps the second signal to the corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, comprising:所述网络侧设备根据第一映射公式将第二信号映射至相应的频域资源,得到所述第一信号;The network side device maps the second signal to the corresponding frequency domain resource according to the first mapping formula to obtain the first signal;其中,所述第一映射公式包括下述任一项:
The first mapping formula includes any one of the following:
其中,y表示所述第一信号,xn表示所述第二信号,N表示所述第二信号的长度,Mlayer,symbol表示映射的目标层和目标符号,k表示所述第一信号的频域资源映射位置,k=k0,k0+1,…,k0+Msc-bw-1,k0表示所述第一信号的频域资源映射的起始位置,k0+Msc-bw-1表示所述第一信号的频域资源映射的结束位置,k’表示傅里叶变换对应的子载波位置,Msc表示所述第一带宽,bw表示所述第一数值,wn,i表示傅里叶矩阵中对应位置的矩阵元素,F_Offset表示所述第一信号的频域资源映射位置的偏移量。Among them, y represents the first signal, xn represents the second signal, N represents the length of the second signal, M layer,symbol represents the mapped target layer and target symbol, k represents the frequency domain resource mapping position of the first signal, k=k 0 , k 0 +1,…, k 0 +M sc -bw-1, k 0 represents the starting position of the frequency domain resource mapping of the first signal, k 0 +M sc -bw-1 represents the end position of the frequency domain resource mapping of the first signal, k' represents the subcarrier position corresponding to the Fourier transform, M sc represents the first bandwidth, bw represents the first value, w n,i represents the matrix element of the corresponding position in the Fourier matrix, and F_Offset represents the offset of the frequency domain resource mapping position of the first signal. - 根据权利要求8所述的方法,其中,The method according to claim 8, whereinF_Offset的取值是所述第一带宽的二分之一。The value of F_Offset is half of the first bandwidth.
- 根据权利要求1-5、8-9任一项所述的方法,其中,The method according to any one of claims 1-5, 8-9, wherein:所述第二信号是根据第三信号得到的;The second signal is obtained according to the third signal;其中,所述第三信号为待传输的原始比特序列。The third signal is an original bit sequence to be transmitted.
- 根据权利要求10所述的方法,其中,The method according to claim 10, wherein所述第三信号的波形为在一个正交频分复用OFDM符号中传输的至少一个码片波形。The waveform of the third signal is at least one chip waveform transmitted in an orthogonal frequency division multiplexing (OFDM) symbol.
- 根据权利要求11所述的方法,其中,所述第三信号的波形包括下述任一项:The method according to claim 11, wherein the waveform of the third signal includes any of the following:多载波开关键控OOK波形;Multi-carrier on-off keying OOK waveform;多载波振幅键控ASK波形;Multi-carrier amplitude-shifted keying (ASK) waveform;多载波频移键控FSK波形。Multi-carrier frequency shift keying FSK waveform.
- 根据权利要求1-5、8-9、11-12任一项所述的方法,其中,所述第一带宽与所述第二带宽的差值的确定方式包括下述至少一项: The method according to any one of claims 1-5, 8-9, 11-12, wherein a method for determining the difference between the first bandwidth and the second bandwidth comprises at least one of the following:协议预定义;The protocol is predefined;网络侧设备配置;Network side equipment configuration;根据所述第一带宽的值和所述第二带宽的值确定;Determining according to a value of the first bandwidth and a value of the second bandwidth;根据所述第一带宽的值和比例系数确定;Determining according to the value of the first bandwidth and the proportionality coefficient;根据所述第二带宽的值和比例系数确定;Determined according to the value of the second bandwidth and the proportionality coefficient;根据上一次传输的第一信号占用的带宽确定;Determined according to the bandwidth occupied by the first signal transmitted last time;根据所述终端上报的参数值确定;Determined according to the parameter value reported by the terminal;其中,所述比例系数为所述第二带宽在所述第一带宽的占用比例,所述终端上报的参数值包括与所述第一信号的接收功率有关的参数。The proportional coefficient is the occupation ratio of the second bandwidth to the first bandwidth, and the parameter value reported by the terminal includes a parameter related to the receiving power of the first signal.
- 一种信号接收方法,所述方法包括;A signal receiving method, the method comprising:终端接收第一信号;The terminal receives a first signal;其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Among them, the first signal is obtained by mapping the second signal to the corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
- 根据权利要求14所述的方法,其中,若终端接收到的所述第一信号的实际映射带宽与所述第一信号的调度带宽不同,则所述终端接收第一信号包括下述任一项:The method according to claim 14, wherein if the actual mapping bandwidth of the first signal received by the terminal is different from the scheduled bandwidth of the first signal, the terminal receiving the first signal comprises any one of the following:按照所述第一信号的调度带宽接收所述第一信号;receiving the first signal according to the scheduled bandwidth of the first signal;按照接收到的所述第一信号的实际映射带宽接收所述第一信号。The first signal is received according to an actual mapping bandwidth of the received first signal.
- 一种信号发送装置,所述装置包括:A signal sending device, comprising:位置确定模块,用于根据第一数值确定第一信号的频域资源映射位置,其中,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值;a position determination module, configured to determine a frequency domain resource mapping position of a first signal according to a first value, wherein the first value is greater than or equal to zero, and the first value is less than or equal to a difference between a first bandwidth and a second bandwidth, the first bandwidth is an initial bandwidth allocated by the system to the first signal, the second bandwidth is a minimum bandwidth to ensure that the first signal is not distorted, and the size of the frequency domain resource mapped to the first signal is the difference between the first bandwidth and the first value;资源映射模块,用于根据所述频域资源映射位置将第二信号映射至相应的频域资源,得到所述第一信号,其中,所述第二信号为待传输的唤醒信号WUS序列;A resource mapping module, configured to map a second signal to a corresponding frequency domain resource according to the frequency domain resource mapping position to obtain the first signal, wherein the second signal is a wake-up signal WUS sequence to be transmitted;信号发送模块,用于发送所述第一信号。A signal sending module is used to send the first signal.
- 一种信号接收装置,所述装置包括:A signal receiving device, the device comprising:信号接收模块,用于接收第一信号;A signal receiving module, configured to receive a first signal;其中,所述第一信号由第二信号映射至相应的频域资源得到,所述第二信号为唤醒信号WUS序列,所述第一信号的频域资源映射位置是根据第一数值确定的,所述第一数值大于或等于零,且所述第一数值小于或等于第一带宽与第二带宽的差值,所述第一带宽为***为所述第一信号分配的初始带宽,所述第二带宽为保证所述第一信号不失真的最小带宽,所述第一信号映射的频域资源大小为所述第一带宽与所述第一数值的差值。Among them, the first signal is obtained by mapping the second signal to the corresponding frequency domain resource, the second signal is a wake-up signal WUS sequence, the frequency domain resource mapping position of the first signal is determined according to a first numerical value, the first numerical value is greater than or equal to zero, and the first numerical value is less than or equal to the difference between the first bandwidth and the second bandwidth, the first bandwidth is the initial bandwidth allocated by the system to the first signal, the second bandwidth is the minimum bandwidth to ensure that the first signal is not distorted, and the frequency domain resource size mapped to the first signal is the difference between the first bandwidth and the first numerical value.
- 一种网络侧设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至13任一项所述的信号发送方法的步骤。A network side device comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method as described in any one of claims 1 to 13 are implemented.
- 一种终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求14至15任一项所述的信号接收方法的步骤。A terminal comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal receiving method as described in any one of claims 14 to 15 are implemented.
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1-13任一项所述的信号发送方法的步骤或实现如权利要求14-15任一项所述的信号接收方法的步骤。A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the signal sending method as described in any one of claims 1 to 13 or implements the steps of the signal receiving method as described in any one of claims 14 to 15.
- 一种计算机程序产品,所述计算机程序产品被至少一个处理器执行以实现如权利要求1-13任一项所述的信号发送方法或实现如权利要求14-15任一项所述的信号接收方法。A computer program product, wherein the computer program product is executed by at least one processor to implement the signal sending method according to any one of claims 1 to 13 or the signal receiving method according to any one of claims 14 to 15.
- 一种电子设备,包括所述电子设备被配置成用于执行如权利要求如权利要求1-13任一项所述的信号发送方法或实现如权利要求14-15任一项所述的信号接收方法。An electronic device, comprising: the electronic device is configured to execute the signal sending method as described in any one of claims 1-13 or implement the signal receiving method as described in any one of claims 14-15.
- 一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1-13任一项所述的信号发送方法或实现如权利要求14-15任一项所述的信号接收方法。 A chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the signal sending method as described in any one of claims 1 to 13 or the signal receiving method as described in any one of claims 14 to 15.
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