CN112292826B - Communication method and device - Google Patents
Communication method and device Download PDFInfo
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- CN112292826B CN112292826B CN201880094657.5A CN201880094657A CN112292826B CN 112292826 B CN112292826 B CN 112292826B CN 201880094657 A CN201880094657 A CN 201880094657A CN 112292826 B CN112292826 B CN 112292826B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L5/00—Arrangements affording multiple use of the transmission path
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Abstract
A communication method and device, the method can include: the network equipment determines a first channel; the first channel occupies 3 physical resource blocks in a frequency domain, wherein the 3 physical resource blocks are a first physical resource block, a second physical resource block and a third physical resource block respectively; the network equipment sends first information to terminal equipment by using the first channel; the first information at least includes a synchronization signal, a master information block, first downlink information and system information, the first physical resource block is used for carrying the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used for carrying the first downlink information, and the third physical resource block is used for carrying the system information. By adopting the method and the device, the problem of communication between the network equipment and the terminal equipment can be solved.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a communication method and apparatus.
Background
With the development of mobile internet and internet of things industries, more and more mobile terminals are connected with each other and share richer data. The Internet of things equipment has the characteristics of low cost, easiness in deployment, no maintenance and the like. Compared with the authorized spectrum, the Internet of things equipment transmits data on the unauthorized spectrum, and the network cost can be effectively reduced.
The Internet of Things (IoT-U) is an Internet of Things narrowband communication technology operating on unlicensed spectrum. The main purpose is to realize long-distance, low-cost and low-power-consumption communication of the Internet of things. The uplink transmission adopts non-adaptive frequency hopping, the main working frequency point is Sub 1GHz, and the frequency can be expanded to other unauthorized frequency spectrums.
Since frequency spectrum is the basis of wireless communication, different legal rules are set by each country in order to ensure fair use of frequency spectrum. In order to avoid that the internet of things device sends data irregularly and unlimitedly on the unlicensed spectrum, the communication commission defines different authentication regulations on the unlicensed spectrum, wherein the authentication regulations may include frequency hopping authentication, digital modulation authentication, and hybrid authentication in which frequency hopping authentication and digital modulation authentication are mixed.
Bluetooth communication is authenticated with frequency hopping communication, where the order of transmitter carrier hopping is determined by a pseudo-random hopping sequence, and each Piconet (Piconet) has a unique hopping sequence. Bluetooth adopts an Industrial Scientific Medical (ISM) frequency band of 2.4GHz, and is divided into 79 channels (the bandwidth of each channel is 1MHz) from 2.402GHz to 2.480GHz, and the average rate is 1600 hops/second.
The digital modulation authentication corresponding to the frequency hopping communication authentication is that when the internet of things equipment adopts the digital modulation authentication, how the internet of things equipment communicates with the network equipment, and a widely-used solution is not provided.
Disclosure of Invention
The embodiment of the application provides a communication method and a communication device, which are used for solving the problem of communication between network equipment and terminal equipment. In a first aspect, a method of communication is provided, which may include: the network equipment determines a first channel and sends first information to the terminal equipment by using the first channel. The first channel occupies 3 physical resource blocks in a frequency domain, which are a first physical resource block, a second physical resource block, and a third physical resource block, respectively, the first information at least includes a synchronization signal, a master information block, first downlink information, and a system message, the first physical resource block is used for bearing the synchronization signal and a broadcast channel, the broadcast channel is used for bearing the master information block, the second physical resource block is used for bearing the first downlink information, and the third physical resource block is used for bearing the system message.
In one possible implementation, the time domain resource occupied by the first channel is 20 ms.
In a possible implementation manner, the sending, by the network device, the first information to the terminal device by using the first channel may include: the network device sends the first information to the terminal device periodically in the first channel according to a first period, the contents of the first information sent in different periods are the same or different, and the first period is 80 ms.
In one possible implementation, the method further includes: the network equipment determines a second channel, wherein the second channel comprises N subframes in a time domain, and N is a positive integer; the network equipment sends the ratio of uplink subframes to downlink subframes to the terminal equipment, wherein the ratio of the uplink subframes to the downlink subframes refers to the ratio of the subframes used for uplink data transmission to the subframes used for downlink data transmission in the second channel; and the network equipment performs data transmission with the terminal equipment based on the second channel according to the ratio of the uplink subframe to the downlink subframe.
In a possible implementation manner, a ratio of the uplink subframe to the downlink subframe is N, and the network device performs data transmission with the terminal device based on the second channel according to the ratio of the uplink subframe to the downlink subframe, including: and the network equipment receives the uplink data sent by the terminal equipment on the N subframes included by the second channel.
In a possible implementation manner, the second channel occupies 1 physical resource block in the frequency domain, and the occupied time domain resource is 60 ms.
In a second aspect, the present application provides a communication method, including: the terminal equipment determines a first channel; the first channel occupies 3 physical resource blocks in a frequency domain, wherein the 3 physical resource blocks are a first physical resource block, a second physical resource block and a third physical resource block respectively; the terminal equipment receives first information sent by network equipment by using the first channel; the first information at least includes a synchronization signal, a master information block, first downlink information and system information, the first physical resource block is used for carrying the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used for carrying the first downlink information, and the third physical resource block is used for carrying the system information.
In a possible implementation manner, the receiving, by the terminal device, first information sent by a network device by using a first channel includes: the terminal equipment detects the synchronous signal on the first physical resource block; after detecting the synchronization signal, the terminal device receives the master information block on the first physical resource block and processes the master information block; when the terminal equipment completes processing the master information block, receiving the system message on the third physical resource block, and processing the system message; and when the terminal equipment completes the processing of the system message, receiving the first downlink information on the second physical resource block.
In one possible implementation, the first channel occupies 20ms of time domain resources.
In a possible implementation manner, the receiving, by the terminal device, first information sent by a network device by using the first channel includes: the terminal equipment receives the first information periodically on the first channel according to a first period, the first information received in different periods is the same or different, and the first period is 80 ms.
In one possible implementation, the method further includes: the terminal equipment determines a second channel, wherein the second channel comprises N subframes in a time domain, and N is a positive integer; the terminal equipment receives the ratio of an uplink subframe to a downlink subframe from the network equipment, wherein the ratio of the uplink subframe to the downlink subframe refers to the ratio of a subframe used for uplink data transmission to a subframe used for downlink data transmission in the second channel; and the terminal equipment performs data transmission with the network equipment based on the second channel according to the ratio of the uplink subframe to the downlink subframe.
In a possible implementation manner, a ratio of the uplink subframe to the downlink subframe is N, and the terminal device performs data transmission with the network device based on the second channel according to the ratio of the uplink subframe to the downlink subframe, including: and the terminal equipment sends uplink data to the network equipment on the N subframes included by the second channel.
In a possible implementation manner, the second channel occupies 1 physical resource block in the frequency domain and occupies 60ms in the time domain.
In a third aspect, the present application provides a communication apparatus, for a terminal device or a chip of the terminal device, including: comprising means or units for performing the steps of the second aspect above.
In a fourth aspect, the present application provides a communication apparatus for a network device or a chip of the network device, including: comprising means or units for performing the steps of the first aspect above.
In a fifth aspect, the present application provides a communication apparatus, which is used for a terminal device or a chip of the terminal device, and includes at least one processing element and at least one storage element, wherein the at least one storage element is used for storing programs and data, and the at least one processing element is used for executing the method provided by the second aspect of the present application.
In a sixth aspect, the present application provides a communication apparatus, for a network device or a chip of a network device, including at least one processing element and at least one storage element, where the at least one storage element is used for storing programs and data, and the at least one processing element is used for executing the method provided in the first aspect of the present application.
In a seventh aspect, the present application provides a communication apparatus for a terminal device comprising at least one processing element (or chip) for performing the method of the second aspect above.
In an eighth aspect, the present application provides a communication apparatus for a network device, comprising at least one processing element (or chip) for performing the method of the first aspect above.
In a ninth aspect, the present application provides a computer program product comprising computer instructions which, when executed by a computer, cause the computer to perform the method of any of the above aspects.
In a tenth aspect, the present application provides a computer readable storage medium having stored thereon computer instructions which, when executed by a computer, cause the computer to perform the method of any of the above aspects.
Drawings
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a communication method according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an anchor segment and a data segment in the time domain according to the embodiment of the present application;
FIG. 5 is a schematic diagram of an anchor segment and a data segment in the time domain according to the embodiment of the present application;
FIG. 6 is a schematic diagram of an anchor segment in the frequency domain according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will be described below with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present application provides a communication system 100, and the communication system 100 may include a network device 101 and a terminal device 102.
The communication system 100 may employ various Radio Access Technologies (RATs), 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), etc., and the RAT employed in the communication system is not limited in this application. In this application, the term "system" may be used interchangeably with "network".
Network device 101 may be a device in a network that accesses a terminal device to the wireless network. The network device is a node in a radio access network, which may also be referred to as a base station, and may also be referred to as a Radio Access Network (RAN) node (or device). Currently, some examples of network devices are: a gNB, a Transmission Reception Point (TRP), an evolved Node B (eNB), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a WiFi Access Point (AP), etc. In addition, in a network structure, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node. The structure separates the protocol layers of the eNB in a Long Term Evolution (LTE) system, the functions of part of the protocol layers are controlled in the CU in a centralized way, the functions of the rest part or all of the protocol layers are distributed in the DU, and the CU controls the DU in a centralized way.
A terminal device 102, also referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a user, such as a handheld device with wireless connection capability, a vehicle-mounted device, etc. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.
The network device 101 and the terminal device 102 may operate in an authorized frequency band or an unlicensed frequency band, for example, the unlicensed frequency band may include 902-. In order to avoid irregular and unlimited data transmission of a communication device in an unlicensed frequency band, a communication commission may specify different authentication regulations, for example, frequency hopping authentication (FHSs), digital modulation authentication (DTSs), hybrid authentication (Hybird) in which frequency hopping authentication and data modulation authentication are mixed, and the like.
Regulations require that in the digital modulation, DM) mode, the channel bandwidth is greater than 500 KHz; no garbage (garpage) can be sent; the channel bandwidth must occupy the declared bandwidth, the actual used bandwidth less than the declared bandwidth at a certain time may be questioned, if the actual used bandwidth is judged by the Federal Communications Commission (FCC) to be not compliant with the regulations, the corresponding communication product cannot be sold, and the compliance is the primary condition of the product solution.
Based on the above, as shown in fig. 2, the present application provides a communication method, which can meet the requirements of the DTSs regulations. The network device in the communication method may be the network device 101 in fig. 1, and the terminal device may be the terminal device 102 in fig. 1. It is understood that, in the embodiment of the present application, the function of the network device may also be implemented by a chip applied to the network device, and the function of the terminal device may also be implemented by a chip applied to the terminal device. The process specifically comprises the following steps:
s201: the network device determines a first channel.
The first channel may occupy 3 Physical Resource Blocks (PRBs) in a frequency domain, and a time domain resource occupied by the first channel is 20 ms. The 3 PRBs may be a first PRB, a second PRB and a third PRB, each PRB may occupy a bandwidth of 180kHz in the frequency domain, the first PRB may be occupied by synchronization and broadcast of a common channel, the second PRB may be occupied by a downlink data channel, and may transmit a Physical Downlink Shared Channel (PDSCH) and a Physical Downlink Control Channel (PDCCH). The third PRB may be a system message of a common channel, such as a System Information Block (SIB), etc. In the embodiment of the present application, the first PRB, the second PRB, and the third PRB are only three PRBs, and are not limited to the present application. The first, second and third indexes may be indexes of three PRBs, which may be numbered from 1, and respectively are the first PRB, the second PRB and the third PRB, and the indexes may also be numbered from 0, and respectively are the PRB # 0, PRB # 1 and PRB # 2.
S202: and the network equipment transmits first information by using the first channel.
The first information at least includes a synchronization signal, a Master Information Block (MIB), first downlink information, and a system message, where the first PRB may be used to carry the synchronization signal and a broadcast channel, the broadcast channel carries the MIB, the second PRB may be used to carry the first downlink information, and the first downlink information may include at least one of downlink data information and downlink control information. The third PRB block may be used to carry the system message.
S203: the terminal device receives the first information using the first channel.
In this embodiment of the present application, the terminal device may first detect the synchronization signal on the first PRB, and after detecting the synchronization signal, the terminal device may receive a master information block on the first PRB and process the master information block; upon completion of processing the master information block, receiving and processing a system message on the third PRB; the first downlink information may be received on the second PRB when processing of the system message is complete.
In an example of the present application, a network device may periodically transmit the first information to the terminal device in the first channel according to a first period, where the content of the first information transmitted in different periods is the same or different, and the first period may be, but is not limited to, 80 ms. Accordingly, the terminal device may receive the first information periodically on the first channel according to the first period.
In the embodiment of the present application, the first channel may also be referred to as an anchor channel (anchor channel), or an anchor segment.
It is to be understood that the terms "first," "second," and the like in the description of the present application are used for descriptive purposes only and not for purposes of indicating or implying relative importance, nor for purposes of indicating or implying order.
Based on the above, as shown in fig. 3, the present application provides a communication method, where a network device in the communication method may be the network device 101 in fig. 1, and a terminal device may be the terminal device 102 in fig. 1. The process specifically comprises the following steps:
s301: the network device determines a second channel.
Wherein, the second channel may also be referred to as a data segment (data segment), the second channel may occupy 1 PRB in the frequency domain, the occupied time domain resource is 60ms, the second channel may include a plurality of N frames (nframes) in the time domain, and may include N subframes (subframes) for each nframe, and N is a positive integer. For example, the time domain resource occupied by the second channel may be 3 nframes, each of which may include 20 subframes (subframes) in the time domain, and each of the subframes may occupy 1ms in the time domain.
S302: the network equipment sends the ratio of an uplink subframe to a downlink subframe, wherein the ratio of the uplink subframe to the downlink subframe refers to the ratio of a subframe used for uplink data transmission to a subframe used for downlink data transmission in the second channel;
for example, in this embodiment of the present application, for any nframe, the ratio of the uplink subframe to the downlink subframe may be N, that is, all subframes in the nframe are used for uplink, the terminal device may transmit uplink data on N subframes included in the second channel, and correspondingly, the network device may receive the uplink data on N subframes included in the second channel.
S303: and the terminal equipment receives the ratio of the uplink subframe to the downlink subframe.
S304: and the network equipment performs data transmission with the terminal equipment based on the second channel according to the ratio of the uplink subframe to the downlink subframe.
In this embodiment, the network device may perform at least one of uplink data transmission and downlink data transmission with the terminal device based on the second channel according to the ratio of the uplink subframe to the downlink subframe. If the subframe is completely allocated for uplink, the network device may perform uplink data transmission with the terminal device based on the second channel, if the subframe is completely allocated for downlink, the network device may perform downlink data transmission with the terminal device based on the second channel, and if a part of the subframe is allocated for uplink and another part is allocated for downlink, the network device may perform uplink data transmission and downlink data transmission simultaneously with the terminal device based on the second channel.
The flowchart shown in fig. 3 may be used alone or in combination with the flowchart shown in fig. 2, and is not limited herein.
As shown in fig. 4, the time domain resource occupied by the first channel may be referred to as an anchor segment, the value of the anchor segment may be 20ms, the time domain resource occupied by the second channel may be referred to as a data segment, the value of the data segment may be 60ms, and the anchor segment and the data segment are adjacent in the time domain.
As shown in fig. 5, in the time domain, the period of the anchor segment may be 80ms, the anchor portion may be composed of the first two radio frames (radio frames), and the data segment may be composed of the remaining six radio frames, each of which takes 10ms in the time domain.
As shown in fig. 6, in the frequency domain, the anchor segment may be composed of 3 PRBs, and for convenience of description, the 3 PRBs may be referred to as nPRB # 0, nPRB # 1, nPRB # 2, and the like. Each PRB occupies a frequency domain with a bandwidth of 180kHz, nPRB # 0 is a low-frequency band, nPRB # 1 occupies a high-frequency position adjacent to nPRB # 0 with a bandwidth of 180kHz, and nPRB # 2 occupies a high-frequency position adjacent to nPRB # 1 with a bandwidth of 180kHz, ornPRB#0 is a high frequency band, nPRB # 1 occupies 180kHz in a low frequency position adjacent to nPRB # 0, nPRB # 2 occupies 180kHz in a low frequency position adjacent to nPRB # 1, and so on.
In the embodiment of the present application, the anchor segment may be used only for downlink data transmission. The terminal device may assume that the anchor segment is used for transmitting a synchronization signal, a physical broadcast channel, a physical downlink control channel, and a physical downlink data channel.
In the time domain, the data segment may include 3 nframes, each of which may take up to 20 ms. Each nframe may include 20 subframes, each of which may occupy 1 ms. The nframe can be used for at least one of uplink transmission and downlink data, and uplink and downlink transmission of the segment data can be controlled by using an uplink/downlink transmission ratio.
As shown in table 1, the present application provides an example of an Uplink-downlink configuration (Uplink-downlink configuration), and in this example, Nframe is taken as an example for explanation. In the embodiment of the present application, one Nframe may include 20 subframes with index numbers of 0 to 19. In the embodiment of the present application, 0 to 19 subframes may all be used for uplink data transmission, may all be used for downlink data transmission, and may also be used for uplink data transmission and downlink data transmission at the same time. Specifically, in the example shown in table 1, "D" may represent a subframe for downlink data transmission, "U" may represent a subframe for uplink data transmission, and "S" may represent a special subframe including two parts, DwPTS and gp (guard period). For example, in table 1, subframes 0 to 4 in Nframe with index 0 may be used for downlink data transmission, subframe 5 may be used as a special subframe including two portions DwPTS and GP, and subframes 6 to 19 may be used for uplink data transmission. In Nframe with index 4, subframes 0 to 19 are used for uplink data transmission.
TABLE 1
By adopting the method disclosed by the embodiment of the application, more available downlink data transmission resources can be provided and the time delay can be lower on the premise of meeting the regulation of data modulation authentication. Receiving synchronous signals on known frequency points, and blind detection of FHSS authentication is not needed; more data resource elements, the anchor part occupies 3 PRBs, wherein the PRBs in the middle position can still be used as data, and the data resource elements cannot be transmitted in the anchor part due to FHSS authentication.
Based on the above concept, as shown in fig. 7, the present application provides a communication apparatus 700, and the communication apparatus 700 may include a processing unit 701 and a transceiving unit 702.
In an example of the present application, the communication apparatus 700 may be applied to a network device, and is configured to execute the steps of the flow shown in fig. 2 or fig. 3, where the network device is taken as an execution subject.
For example, the processing unit 701 may be configured to determine a first channel, where the first channel occupies 3 physical resource blocks in a frequency domain, and the first channel is a first physical resource block, a second physical resource block, and a third physical resource block; a transceiver 702, configured to send first information to a terminal device by using the first channel, where the first information at least includes a synchronization signal, a master information block, first downlink information, and a system message, the first physical resource block is used to carry the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used to carry the first downlink information, and the third physical resource block is used to carry the system message.
In an example of the present application, the communication apparatus 700 may be applied to a terminal device, and is configured to execute the steps that take the terminal device as an execution subject in the flow shown in fig. 2 or fig. 3.
For example, the processing unit 701 may be configured to determine a first channel, where the first channel occupies 3 physical resource blocks in a frequency domain, and the first channel is a first physical resource block, a second physical resource block, and a third physical resource block; a transceiving unit 702, configured to receive first information sent by a network device using the first channel; the first information at least includes a synchronization signal, a master information block, first downlink information and system information, the first physical resource block is used for carrying the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used for carrying the first downlink information, and the third physical resource block is used for carrying the system information.
The specific functions of the processing unit 701 and the transceiver 702 can be referred to the description of the flow shown in fig. 2 or fig. 3, and will not be described here.
Based on the above concept, as shown in fig. 8, the present application further provides a communication apparatus 800, where the communication apparatus 800 is applicable to a network device or a chip of the network device, and the communication apparatus 800 is configured to perform the steps of the flow shown in fig. 2 or fig. 3, where the network device is taken as an execution subject. For example, the processor 801 may be configured to determine a first channel, where the first channel occupies 3 physical resource blocks in a frequency domain, and the first channel is a first physical resource block, a second physical resource block, and a third physical resource block; a transmitter 805, configured to send first information to a terminal device by using the first channel, where the first information at least includes a synchronization signal, a master information block, first downlink information, and a system message, the first physical resource block is used to carry the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used to carry the first downlink information, and the third physical resource block is used to carry the system message.
For another example, in an example of the present application, the communication apparatus 800 may be used in a terminal device or a chip in the terminal device, and the communication apparatus 800 may be used to execute the steps that take the terminal device as an execution subject in the flow shown in fig. 2 or fig. 3. For example, the processor 801 may be configured to determine a first channel, where the first channel occupies 3 physical resource blocks in a frequency domain, and the first channel is a first physical resource block, a second physical resource block, and a third physical resource block; the receiver 804 is configured to receive first information sent by a network device using the first channel.
For specific functions of the processor 801, the receiver 804 and the transmitter 805, reference may be made to the description of the flow shown in fig. 2 or fig. 3, which is not described herein again.
It should be understood that, in the above-mentioned respective apparatus embodiments, the network device completely corresponds to the terminal device and the network device or the terminal device in the method embodiments, and the corresponding steps are executed by corresponding modules or units, for example, the sending module (transmitter) method executes the steps sent in the method embodiments, the receiving module (receiver) executes the steps received in the method embodiments, and other steps except sending and receiving may be executed by a processing module (processor). The functionality of the specific modules may be referred to in the respective method embodiments. The transmitting module and the receiving module can form a transceiving module, and the transmitter and the receiver can form a transceiver to realize transceiving function together; the processor may be one or more.
According to the method provided by the embodiment of the present application, an embodiment of the present application further provides a communication system, which includes the foregoing network device and terminal device.
Based on the above embodiments, the present application further provides a computer storage medium, in which a software program is stored, and the software program can implement the method provided by any one or more of the above embodiments when being read and executed by one or more processors. The computer storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.
Based on the above embodiments, the present application further provides a chip, where the chip includes a processor, and is configured to implement the functions related to any one or more of the above embodiments, such as obtaining or processing information or messages related to the above methods. Optionally, the chip further comprises a memory for storing program instructions and data for execution by the processor. The chip may also contain chips and other discrete devices.
It should be understood that in the embodiments of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general purpose processors, Digital Signal Processors (DSPs), application-specific integrated circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor, any conventional processor, etc.
The memory may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory.
The bus system may include a power bus, a control bus, a status signal bus, and the like, in addition to the data bus. For clarity of illustration, however, the various buses are labeled as a bus system in the figures. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.
In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.
In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division".
It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.
Claims (28)
1. A method of communication, comprising:
the network equipment determines a first channel; the first channel occupies 3 physical resource blocks in a frequency domain, wherein the physical resource blocks are a first physical resource block, a second physical resource block and a third physical resource block, the time domain resource occupied by the first channel is 20ms, and each physical resource block occupies 180kHz bandwidth in the frequency domain;
the network equipment sends first information to terminal equipment by using the first channel;
the first information at least includes a synchronization signal, a master information block, first downlink information and system information, the first physical resource block is used for carrying the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used for carrying the first downlink information, and the third physical resource block is used for carrying the system information.
2. The method of claim 1, wherein the network device sends first information to a terminal device using the first channel, and wherein the first information comprises:
the network equipment periodically sends the first information to the terminal equipment in the first channel according to a first period, and the contents of the first information sent in different periods are the same or different.
3. The method of claim 2, wherein the first period is 80 ms.
4. The method according to any one of claims 1 to 3, further comprising:
the network equipment determines a second channel, wherein the second channel comprises N subframes in a time domain, and N is a positive integer;
the network equipment sends the ratio of uplink subframes to downlink subframes to the terminal equipment, wherein the ratio of the uplink subframes to the downlink subframes refers to the ratio of the subframes used for uplink data transmission to the subframes used for downlink data transmission in the second channel;
and the network equipment performs data transmission with the terminal equipment based on the second channel according to the ratio of the uplink subframe to the downlink subframe.
5. The method according to claim 4, wherein the ratio of the uplink subframe to the downlink subframe is N, and the network device performs data transmission with the terminal device based on the second channel according to the ratio of the uplink subframe to the downlink subframe, including:
and the network equipment receives the uplink data sent by the terminal equipment on the N subframes included by the second channel.
6. The method of claim 5, wherein the second channel occupies 1 physical resource block in the frequency domain, and occupies 60ms of time domain resources.
7. A method of communication, comprising:
the terminal equipment determines a first channel;
the first channel occupies 3 physical resource blocks in a frequency domain, wherein the physical resource blocks are a first physical resource block, a second physical resource block and a third physical resource block, the time domain resource occupied by the first channel is 20ms, and each physical resource block occupies 180kHz bandwidth in the frequency domain;
the terminal equipment receives first information sent by network equipment by using the first channel;
the first information at least includes a synchronization signal, a master information block, first downlink information and system information, the first physical resource block is used for carrying the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used for carrying the first downlink information, and the third physical resource block is used for carrying the system information.
8. The method of claim 7, wherein the terminal device receives the first information sent by the network device by using the first channel, and comprises:
the terminal equipment detects the synchronous signal on the first physical resource block;
after detecting the synchronization signal, the terminal device receives the master information block on the first physical resource block and processes the master information block;
when the terminal equipment completes processing the master information block, receiving the system message on the third physical resource block, and processing the system message;
and when the terminal equipment completes the processing of the system message, receiving the first downlink information on the second physical resource block.
9. The method according to claim 7 or 8, wherein the terminal device receives first information sent by a network device by using the first channel, and comprises:
the terminal equipment receives the first information periodically on the first channel according to a first period, and the first information received in different periods is the same or different.
10. The method of claim 9, wherein the first period is 80 ms.
11. The method of claim 7, 8 or 10, further comprising:
the terminal equipment determines a second channel, wherein the second channel comprises N subframes in a time domain, and N is a positive integer;
the terminal equipment receives the ratio of an uplink subframe to a downlink subframe from the network equipment, wherein the ratio of the uplink subframe to the downlink subframe refers to the ratio of a subframe used for uplink data transmission to a subframe used for downlink data transmission in the second channel;
and the terminal equipment performs data transmission with the network equipment based on the second channel according to the ratio of the uplink subframe to the downlink subframe.
12. The method according to claim 11, wherein the ratio of the uplink subframe to the downlink subframe is N, and the terminal device performs data transmission with the network device based on the second channel according to the ratio of the uplink subframe to the downlink subframe, including:
and the terminal equipment sends uplink data to the network equipment on the N subframes included by the second channel.
13. The method of claim 12, wherein the second channel occupies 1 physical resource block in a frequency domain, and occupies 60ms of time domain resources.
14. A communications apparatus, comprising:
the device comprises a processing unit, a first channel and a second channel, wherein the first channel occupies 3 physical resource blocks in a frequency domain, the first channel is a first physical resource block, a second physical resource block and a third physical resource block, the time domain resource occupied by the first channel is 20ms, and each physical resource block occupies 180kHz bandwidth in the frequency domain;
a transceiver unit, configured to send first information to a terminal device by using the first channel, where the first information at least includes a synchronization signal, a master information block, first downlink information, and a system message, the first physical resource block is used to carry the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used to carry the first downlink information, and the third physical resource block is used to carry the system message.
15. The apparatus of claim 14, wherein the transceiver unit, when sending the first information to the terminal device by using the first channel, is specifically configured to:
and periodically sending the first information to the terminal equipment in the first channel according to a first period, wherein the contents of the first information sent in different periods are the same or different.
16. The apparatus of claim 15, wherein the first period is 80 ms.
17. The apparatus according to any one of claims 14 to 16,
the processing unit is further configured to determine a second channel, where the second channel includes N subframes in a time domain, and N is a positive integer;
the transceiver unit is further configured to send, to the terminal device, a ratio of an uplink subframe to a downlink subframe, where the ratio of the uplink subframe to the downlink subframe refers to a ratio of a subframe used for uplink data transmission to a subframe used for downlink data transmission in the second channel;
and the processing unit is further configured to perform data transmission with the terminal device based on the second channel according to the ratio of the uplink subframe to the downlink subframe.
18. The apparatus of claim 17, wherein a ratio of the uplink subframe to the downlink subframe is N, and when performing data transmission with the terminal device based on the second channel according to the ratio of the uplink subframe to the downlink subframe, the processing unit is specifically configured to:
and controlling the transceiver unit to receive uplink data sent by the terminal device on the N subframes included in the second channel.
19. The apparatus of claim 18, wherein the second channel occupies 1 physical resource block in frequency domain, and occupies 60ms time domain resource.
20. A communications apparatus, comprising:
the device comprises a processing unit, a first channel and a second channel, wherein the first channel occupies 3 physical resource blocks in a frequency domain, the first channel is a first physical resource block, a second physical resource block and a third physical resource block, the time domain resource occupied by the first channel is 20ms, and each physical resource block occupies 180kHz bandwidth in the frequency domain;
a transceiving unit, configured to receive first information sent by a network device using the first channel;
the first information at least includes a synchronization signal, a master information block, first downlink information and system information, the first physical resource block is used for carrying the synchronization signal and a broadcast channel, the broadcast channel carries the master information block, the second physical resource block is used for carrying the first downlink information, and the third physical resource block is used for carrying the system information.
21. The apparatus of claim 20, wherein the transceiver unit, when receiving the first information sent by the network device through the first channel, is specifically configured to:
detecting the synchronization signal on the first physical resource block;
receiving the master information block on the first physical resource block after detecting the synchronization signal;
receiving the system message on the third physical resource block when the processing unit completes processing of the master information block;
and when the processing unit finishes processing the system message, receiving the first downlink information on the second physical resource block.
22. The apparatus according to claim 20 or 21, wherein when the transceiver unit receives the first information sent by the network device through the first channel, the apparatus specifically includes:
and according to a first period, periodically receiving the first information on the first channel, wherein the first information received in different periods is the same or different.
23. The apparatus of claim 22, wherein the first period is 80 ms.
24. The apparatus of claim 20, 21 or 23,
the processing unit is further configured to determine a second channel, where the second channel includes N subframes in a time domain, and N is a positive integer;
the transceiver unit is further configured to receive a ratio of an uplink subframe to a downlink subframe from the network device, where the ratio of the uplink subframe to the downlink subframe refers to a ratio of a subframe used for uplink data transmission to a subframe used for downlink data transmission in the second channel;
and the processing unit is further configured to perform data transmission with the network device based on the second channel according to the ratio of the uplink subframe to the downlink subframe.
25. The apparatus of claim 24, wherein a ratio of the uplink subframe to the downlink subframe is N, and when performing data transmission with the network device based on the second channel according to the ratio of the uplink subframe to the downlink subframe, the processing unit is specifically configured to: and the processing unit controls the transceiver unit to transmit uplink data to the network device on the N subframes included in the second channel.
26. The apparatus of claim 25, wherein the second channel occupies 1 physical resource block in a frequency domain, and occupies 60ms of a time domain resource.
27. A communication device comprising a processor, a memory, and a communication interface;
wherein the memory is to store program instructions;
the processor is used for calling and executing the program instructions stored in the memory, receiving and/or sending data through the communication interface and realizing the method of any one of claims 1 to 13.
28. A computer-readable storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 13.
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| PCT/CN2018/107108 WO2020056766A1 (en) | 2018-09-21 | 2018-09-21 | Communication method and device |
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| CN107294684A (en) * | 2016-04-01 | 2017-10-24 | 夏普株式会社 | Configure the method and base station, the method and user equipment that determine non-anchor Physical Resource Block position of non-anchor Physical Resource Block |
| WO2018030809A1 (en) * | 2016-08-10 | 2018-02-15 | 엘지전자 주식회사 | Method for receiving paging signal in nb-iot and method for performing random access procedure in nb-iot |
| CN108207023A (en) * | 2016-12-18 | 2018-06-26 | 上海朗帛通信技术有限公司 | A kind of method and apparatus in UE for narrow band communication, base station |
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| KR102129861B1 (en) * | 2015-12-08 | 2020-07-03 | 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) | Network nodes, wireless devices, methods and computer programs |
| KR20180087762A (en) * | 2017-01-25 | 2018-08-02 | 삼성전자주식회사 | Method and apparatus for detecting the synchronization signal in wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294684A (en) * | 2016-04-01 | 2017-10-24 | 夏普株式会社 | Configure the method and base station, the method and user equipment that determine non-anchor Physical Resource Block position of non-anchor Physical Resource Block |
| WO2018030809A1 (en) * | 2016-08-10 | 2018-02-15 | 엘지전자 주식회사 | Method for receiving paging signal in nb-iot and method for performing random access procedure in nb-iot |
| CN108207023A (en) * | 2016-12-18 | 2018-06-26 | 上海朗帛通信技术有限公司 | A kind of method and apparatus in UE for narrow band communication, base station |
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