A signal sending method, receiving method, sending device, receiving device and communication system
Technical field
[0001]
This application relates to the field of communications, and in particular to a signal sending method, receiving method, sending device, receiving device, and communication system.
Background technique
[0002]
In the prior art, a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB) may have a primary synchronization signal (PSS: Primary Synchronization Signal), a secondary synchronization signal (SSS: Secondary Synchronization Signal) and a physical Layer broadcast channel (PBCH: Physical Broadcast CHannel).
[0003]
In a time interval, the network device can send multiple SSBs through beams in different directions, thereby increasing the coverage angle of the cell.
[0004]
After receiving the SSB, the terminal device can use the SSB to perform time-frequency synchronization in the initial access phase, and can also perform radio resource management (RRM: Radio Resource Management) and/or radio link monitoring (RLM: Radios Link Monitoring).
[0005]
It should be noted that the above introduction to the technical background is only for the convenience of a clear and complete description of the technical solutions of the present application, and to facilitate the understanding of those skilled in the art. It should not be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of this application.
[0006]
Summary of the invention
[0007]
When a network device sends multiple SSBs in a time interval, each SSB can be sent at a default resource in the time interval, where the time interval is, for example, a half frame, and the length of the time interval is, for example, 5 milliseconds (ms ).
[0008]
Figure 1 is a schematic diagram of the default transmission resources of each SSB in a half frame. In Figure 1, it is assumed that the subcarrier spacing is 30kHz and the carrier frequency is less than 3GHz. In this case, the network device sends a total of 4 SSBs in one half frame, namely, SSB1, SSB2, SSB3, SSB4, of which 1,2 ,3,4 are the index values ​​of each SSB; the initial transmission resources of each SSB are the symbol 2 of the slot 0, the symbol 8 of the slot 0, and the symbol of the slot 1 in the half-frame. 2. The symbol symbol 8 of slot 1; and the network device sends each SSB in the order of increasing index value. According to Figure 1, there is a default correspondence between the SSB index value and the slot index and the symbol index.
[0009]
In the initial access phase, the terminal equipment blindly detects the SSB. When an SSB is detected, the SSB index value is used to obtain the slot index and symbol index according to the subcarrier spacing and the default time-frequency resource position of the SSB index value. The PBCH obtains the system frame number, so that the terminal equipment can obtain downlink time synchronization.
[0010]
When using an unlicensed frequency band to communicate, the network device needs to perform listen before talk (LBT: Listen Before Talk) before sending data to detect whether the channel is free. The detection result is that data can be sent when the channel is idle. If the channel is busy, the sending device needs to detect again until the channel is idle before it can use the unlicensed frequency band to send data.
[0011]
The inventor of the present application found that in the scenario of performing LBT, the SSB transmission process will face some new situations that need to be considered.
[0012]
Figure 2 is a schematic diagram of sending SSB in the case of LBT. As shown in Figure 2, if the channel is busy before the default transmission resource of an SSB, that is, the LBT fails, then the SSB cannot be transmitted at the default time. When the LBT succeeds, the transmission resources after the LBT can be used for transmission. SSB.
[0013]
For example, in Figure 2, the cell has 4 SSBs in total, namely, SSB1, SSB2, SSB3, and SSB4. The sending resources 201, 202, 203, and 204 in Figure 2 are the default sending resources of SSB1, SSB2, SSB3, and SSB4 respectively. LBT fails before sending resources 201 and 202. Therefore, sending resources 201, 202 cannot be used to send SSB1, SSB2; LBT before sending resource 203 Success, therefore, the transmission resources 203, 204 can be used to transmit the SSB.
[0014]
The inventor of the present application found that: on the one hand, if the transmission resources 203 and 204 of FIG. 2 are used to transmit SSB3 and SSB4, then SSB1 and SSB2 will not be transmitted, that is, the SSB transmission is incomplete, which will cause the transmission of SSB1. Users in the coverage area of ​​the beam of SSB2 and SSB cannot receive the SSB and cannot access the cell, and for users in the connected state, the incomplete transmission of the cell SSB will cause the user to incorrectly calculate the cell quality, which will eventually affect the cell The result of the reselection; on the other hand, if all SSBs of the cell are sent in order using the sending resources 203, 204 and the following resources, that is, SSB1, SSB2, SSB3, SSB4, then the difference between the SSB index and the sending resource The default corresponding relationship will be changed, that is, if the default corresponding relationship is used, the sending resource 203 is used to send SSB3, but in order to send all SSBs, the resource 203 is used to send SSB1, which makes the terminal device in the initial access process It is difficult to obtain downlink synchronization according to the above-mentioned default correspondence.
[0015]
The embodiments of the present application provide a signal sending method, receiving method, sending device, receiving device, and communication system. The sending resource of the information block is indicated by the indication information. Therefore, even if there is a default value between the information block index and the sending resource, In the case that the corresponding relationship of is to be changed, the transmission resource corresponding to the information block can also be clarified, thereby facilitating the downlink synchronization of the terminal device.
[0016]
According to a first aspect of the embodiments of the present application, there is provided a sending device, which is provided in a network device, and the sending device includes:
[0017]
A sending unit, which sends indication information used to instruct the network device to send one of the at least one information block in a time interval to send one of the at least two candidate resources in the one time interval .
[0018]
According to a second aspect of the embodiments of the present application, there is provided a signal receiving device, which is provided in a terminal device, and the receiving device includes: a receiving unit that receives a signal sent by a network device to indicate that the network device is within a time interval The sent one information block sends indication information of one candidate resource among the at least two candidate resources in the one time interval; and a calculation unit that obtains time synchronization according to the indication information.
[0019]
According to a third aspect of the embodiments of the present application, a communication system is provided, the communication system includes a terminal device and a network device, the network device includes the sending device as described in the first aspect of the above-mentioned embodiment, and the terminal device includes The receiving device described in the second aspect of the above embodiment.
[0020]
The beneficial effect of the embodiments of the present application is that the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource is to be changed, the information block can be clarified. The corresponding sending resource.
[0021]
With reference to the following description and drawings, specific implementations of the present application are disclosed in detail, and the ways in which the principles of the present application can be adopted are indicated. It should be understood that the scope of the embodiments of the present application is not limited thereby. Within the scope of the terms of the appended claims, the implementation of the present application includes many changes, modifications and equivalents.
[0022]
Features described and/or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or substituted for features in other embodiments .
[0023]
It should be emphasized that the term "comprising/comprising" when used herein refers to the existence of a feature, a whole, a step or a component, but does not exclude the existence or addition of one or more other features, a whole, a step or a component.
Description of the drawings
[0024]
The elements and features described in one drawing or one embodiment of the embodiment of the present application may be combined with the elements and features shown in one or more other drawings or embodiments. In addition, in the drawings, similar reference numerals indicate corresponding parts in several drawings, and may be used to indicate corresponding parts used in more than one embodiment.
[0025]
The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the embodiments of the present application, and together with the text description, explain the principle of the present application. Obviously, the drawings in the following description are only some embodiments of the application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the attached picture:
[0026]
Figure 1 is a schematic diagram of the default transmission resources of each SSB in a half frame;
[0027]
Figure 2 is a schematic diagram of sending SSB in the case of LBT;
[0028]
Figure 3 is a schematic diagram of the communication system of the present application;
[0029]
Figure 4 is a schematic diagram of a signal transmission method;
[0030]
FIG. 5 is a schematic diagram of candidate start symbols in the first embodiment;
[0031]
Figure 6 is a schematic diagram of each candidate starting symbol;
[0032]
FIG. 7 is a schematic diagram of the predetermined mapping relationship of each information block;
[0033]
FIG. 8 is a schematic diagram of preset time-frequency resources;
[0034]
Fig. 9 is a schematic diagram showing indication information by using the relative relationship between SSB and other signals or channels;
[0035]
FIG. 10 is a schematic diagram of the first time-frequency resource and candidate resources;
[0036]
FIG. 11 is another schematic diagram of a first time-frequency resource and a candidate resource;
[0037]
FIG. 12 is a schematic diagram of a signal receiving method according to Embodiment 2 of the present application;
[0038]
FIG. 13 is a schematic diagram of a signal sending device of Embodiment 3;
[0039]
FIG. 14 is a schematic diagram of the signal receiving device of the fourth embodiment;
[0040]
FIG. 15 is a schematic diagram of the structure of a terminal device according to an embodiment of the present application;
[0041]
FIG. 16 is a schematic diagram of the structure of a network device according to an embodiment of the present invention.
Detailed ways
[0042]
With reference to the drawings, the foregoing and other features of this application will become apparent through the following description. In the description and drawings, specific implementations of the application are specifically disclosed, which indicate some implementations in which the principles of the application can be adopted. It should be understood that the application is not limited to the described implementations. On the contrary, the present application is not limited to the described implementations. The application includes all modifications, variations and equivalents falling within the scope of the appended claims. Hereinafter, various embodiments of the present application will be described with reference to the accompanying drawings. These implementation manners are only exemplary, and not a limitation of the present application.
[0043]
In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from terms, but they do not indicate the spatial arrangement or chronological order of these elements. These elements should not be used by these terms. Limited. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having" and the like refer to the existence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
[0044]
In the embodiments of the present application, the singular forms "a", "the", etc. include plural forms, which should be broadly understood as "a" or "a type" rather than being limited to the meaning of "a"; in addition, the term "the" "Should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "based on" should be understood as "based at least in part on...", and the term "based on" should be understood as "based at least in part on...", unless the context clearly dictates otherwise.
[0045]
In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), and Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed ​​Packet Access (HSPA, High-Speed ​​Packet Access), etc.
[0046]
In addition, the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
[0047]
In the embodiments of the present application, the term “network device” refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device. Network equipment may include but is not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
[0048]
Among them, the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may also include remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femto, pico, etc.). And the term "base station" can include some or all of their functions, and each base station can provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and/or its coverage area, depending on the context in which the term is used.
[0049]
In the embodiments of the present application, the term "User Equipment" (UE, User Equipment) or "Terminal Equipment" (TE, Terminal Equipment), for example, refers to a device that accesses a communication network through a network device and receives network services. The terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), terminal, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc.
[0050]
Among them, terminal devices may include but are not limited to the following devices: cellular phones (Cellular Phone), personal digital assistants (PDAs, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, Cordless phones, smart phones, smart watches, digital cameras, etc.
[0051]
For another example, in scenarios such as the Internet of Things (IoT, Internet of Things), the terminal device may also be a machine or device that performs monitoring or measurement. For example, it may include, but is not limited to: Machine Type Communication (MTC) terminals, Vehicle-mounted communication terminals, device to device (D2D, Device to Device) terminals, machine to machine (M2M, Machine to Machine) terminals, etc.
[0052]
The following uses examples to illustrate the scenarios of the embodiments of the present application, but the present application is not limited to this.
[0053]
FIG. 3 is a schematic diagram of the communication system of the present application, which schematically illustrates the case of using terminal equipment and network equipment as an example. As shown in FIG. 3, the communication system 300 may include a network equipment 301 and a terminal equipment 302 (for simplicity, Figure 3 only takes one terminal device as an example for illustration).
[0054]
In the embodiment of the present application, the network device 301 and the terminal device 302 can perform existing services or services that can be implemented in the future. For example, these services include but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), massive machine type communication (mMTC, massive machine type communication), and highly reliable and low-latency communication (URLLC, Ultra-Reliable and Low- Latency Communication), etc.
[0055]
Among them, the terminal device 302 can send data to the network device 301, for example, using authorization or authorization-free transmission. The terminal device 301 can receive data sent by one or more terminal devices 102, and feed back information to the terminal device 302, such as acknowledgement ACK/non-acknowledgement NACK information, etc. The terminal device 302 can confirm the end of the transmission process according to the feedback information, or it can further Perform new data transmission, or data retransmission can be performed.
[0056]
In addition, before the terminal device 302 accesses the network device 301, the network device 301 can send information related to system information to the terminal device 302, and the terminal device 302 detects the received information to achieve downlink synchronization and communicate with the network device 301. establish connection.
[0057]
The following description takes the network device in the communication system as the sending end and the terminal device as the receiving end as an example for description, but the present application is not limited to this, and the sending end and/or the receiving end may also be other devices. For example, this application is not only applicable to signal transmission between network equipment and terminal equipment, but also applicable to signal transmission between two terminal equipment.
[0058]
Example 1
[0059]
Embodiment 1 of the present application provides a method for sending a signal, and the method may be executed by a network device.
[0060]
Fig. 4 is a schematic diagram of a signal transmission method. As shown in Fig. 4, the method includes:
[0061]
Step 401: The network device sends an instruction for instructing one of the at least one information block sent by the network device to send one of the at least two candidate resources in the one time interval. information.
[0062]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, thereby, even when the one-to-one correspondence between the information block index and the transmission resource will be changed, the resource of the information block can be clearly transmitted. In turn, it is convenient for the terminal equipment to perform downlink synchronization.
[0063]
In this embodiment, a time interval may be, for example, a half frame, and the length of the time interval may be, for example, 5 milliseconds (ms).
[0064]
In this embodiment, one information block may include at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB). For example, the information block may be an SSB; or, in addition to the SSB, the information block also contains other information. For example, other information may be control resource set 0 and/or a physical layer shared channel carrying system information block 1 (SIB1: System Information Block 1).
[0065]
In this embodiment, the information block group including a predetermined number of information blocks that the network device needs to send in the one time interval of a cell is called the information block group of the cell. The predetermined number is a default value, or a value determined by the subcarrier spacing and/or carrier frequency. For example, when the sub-carrier spacing is 15 kHz and the carrier frequency is less than 3 GHz, the information block group may have 4 information blocks, and the index values ​​of the SSBs in each information block are different from each other. In addition, the index value of each information block may be equal to or not equal to the index value of the SSB in the information block.
[0066]
In this embodiment, the network device may use an unlicensed frequency band to communicate. For example, the network device performs LBT detection before sending the information block in the one time interval, and starts to send the information block group after the LBT succeeds.
[0067]
In one embodiment, the network device completely transmits the information block group or does not transmit the information block within a time interval, that is, after the LBT is successful, all the information blocks in the information block group are sent, if it cannot completely send all the information blocks in the information block group. The information block does not send the information block. For example, the information block group of a cell contains 4 information blocks. After the LBT is successful, all 4 information blocks in the information block group are sent; if the remaining resources cannot completely send the 4 information blocks within the one time interval, The network device does not send information blocks within this time interval. For another example, LBT detection always fails, and when the remaining resources in the one time interval cannot completely send the 4 information blocks, the network device stops the LBT detection and does not send the information blocks in the one time interval.
[0068]
In another embodiment, the network device transmits part of the information block in the information block group or does not transmit the information block at a time interval: for example, the information block group of a cell contains 4 information blocks. After the LBT is successful, the one The remaining resources in the time interval can only send 1 information block, and the network device can only send one information block in the information block group (for example, the first information block, or the last information block, etc.). If the LBT detection fails within the time interval, the information block is not sent within the time interval. In addition, in this embodiment, the network device also sends a control message, the control information is used to indicate that the network device has not sent the information block in the information block group within the time interval, or instruct the terminal device not to report The measurement result in the one time interval is a measurement result of one of radio resource management (RRM), radio link measurement, and channel state measurement. The control information can be a common control information, that is, all terminal devices served by the cell can receive the common control information, or it can be a group of common control information, that is, only a group of terminal devices of the terminal devices served by the cell can receive the common control information. Receive the control information. In this embodiment, as long as there is a resource for sending information blocks within the time interval, the network device will send the information block, which can increase the possibility of terminal equipment access, and notify the terminal equipment that it is not complete within the time interval through control information. Sending the information block effectively avoids the measurement error of the connected terminal equipment.
[0069]
According to this embodiment, in a time interval, each information block may have at least two candidate resources for transmitting the information block, and the information block may be on one of the at least two candidate resources. Is sent, where the number of candidate resources and the time-frequency position of each information block may be preset. Since each information block can have at least two candidate resources, it is still possible to use other candidate resources to send the information block when some candidate resources cannot be used to send the information block due to LBT failure. Therefore, It can improve the possibility of sending the information block, thereby increasing the possibility of completely sending all the information blocks in the cell; moreover, by indicating the candidate resource actually used to send the information block through the indication information, it is possible to clarify where the information block is. The candidate resource is sent to facilitate obtaining the time-frequency information of the candidate resource.
[0070]
In this embodiment, the instruction information may be carried in the information block sent by the network device. Therefore, the network device can send the instruction information when sending the information block, that is, step 401 passes the network The device sends information blocks to achieve this. In addition, the instruction information may also be carried in other information, that is, in addition to the action of sending the information block, the network device also executes step 401 to send the instruction information.
[0071]
In the following, the candidate resources and indication information of this embodiment will be further described.
[0072]
In the first embodiment, each information block may have at least two candidate resources.
[0073]
In this embodiment, the time domain interval between each candidate start symbol may be equal or unequal, and each candidate start symbol may be an orthogonal frequency division multiplexing (OFDM) with a predetermined index value in a time interval. symbol. Wherein, the unit of the time domain interval may be an integer number of OFDM symbols, an integer number of subframes, milliseconds, or the information block.
[0074]
In this embodiment, the indication information includes: identification information of one of the at least two candidate start symbols of the first information block in the at least one information block. The first information block may refer to the information block with the smallest index value in the information block group.
[0075]
For example, when the time domain intervals of adjacent candidate start symbols are equal, the identification information of the candidate start symbol may be the number of the time domain intervals between the candidate start symbol and the first candidate start symbol, Therefore, according to the number of time domain intervals and the size of the time domain interval, as well as the first candidate start symbol in the candidate start symbol, the candidate start symbol can be determined among all symbols in the time interval. Index value; or, when the identification information of the candidate start symbol is an orthogonal frequency division multiplexing (OFDM) symbol with a predetermined index value in a time interval, the identification information of the candidate start symbol may be the candidate start symbol The sequence number among all candidate start symbols.
[0076]
FIG. 5 is a schematic diagram of candidate start symbols in the first embodiment. As shown in FIG. 5, there are 4 information blocks in the information block group, namely, information block 0, information block 1, information block 2, and information block 3. Among them, information block 0 is the first information block.
[0077]
As shown in Fig. 5, information block 0 has 5 candidate start symbols, which are start symbols 0-4.
[0078]
The network device can perform LBT detection before each candidate start symbol. When the channel is in an idle state, that is, LBT is successful, the network device sends the first information block from the candidate start symbol, and the indication information is set to Start sending the identification information of the candidate start symbol of the first information block.
[0079]
In this embodiment, after sending the first information block, the network device may continue to send other information blocks in the order of the index values ​​of the information blocks. The order of the index values ​​of the information blocks is, for example, that the index value is as small as possible. Arrangement order to the largest.
[0080]
For example, in Figure 5, the network device detects that the LBT is successful before the candidate start symbol 2. Therefore, the network device sequentially sends information block 0 to information block 3 starting from the candidate start symbol 2, and the candidate start symbol 2 As the instruction information.
[0081]
In a way of sending each information block, there may be a predetermined mapping relationship between each information block, that is, the relative position between the start symbols of different information blocks has a predetermined value. Therefore, when the terminal device detects a piece of information After the block, the identification information of the candidate start symbol sent by the network device and the predetermined mapping relationship between the information blocks are used to obtain time synchronization.
[0082]
In a specific example, the predetermined mapping relationship can be set by, for example, the default corresponding relationship between each information block and the transmission resource shown in FIG. 1, that is, in the default corresponding relationship, each information block and the transmission resource The transmission resources correspond, so that the relative positional relationship between the transmission resources of each information block is also set.
[0083]
For example: when the time domain intervals of adjacent candidate start symbols are equal, the identification information of the candidate start symbol is the number of time domain intervals between the candidate start symbol and the first candidate start symbol. The size of the time domain interval between adjacent candidate start symbols is 4 symbols, and the terminal device detects the information block 3. The indication information is the time domain interval between candidate start symbol 2 and the first candidate start symbol. The number is 2; if in the default corresponding relationship (that is, the default relationship when the information block group is sent from the first candidate start symbol), the start symbol of the resource used to send the information block 3 is the slot 1 Symbol 6, then the terminal device adds 2×4=8 (that is, the number of time domain intervals × the size of time domain intervals) symbols on the basis of the symbol index value in the default correspondence relationship, so as to determine that the information is actually sent The index of the first symbol of the resource of block 3 and the index of the time slot where the symbol is located, the downlink synchronization is obtained.
[0084]
For another example: when the identification information of the candidate start symbol is the sequence number of the candidate start symbol among all the candidate start symbols, each candidate start symbol is, for example, as shown in FIG. The definition of the start symbol is that the index values ​​in the time interval are 4, 8, 16, 20, 31 respectively (that is, the symbols 4 and 8 in slot 0, the symbol 2 in slot 1 in the time interval, 6. The OFDM symbol of symbol 4) in slot 2, indicating that the size of the information is 3 bits, indicating one of 0-4 candidate start symbols; assuming that the terminal device detects information block 3, the 3 bits of the indicating information are '000' indicates the sequence number 0 of the candidate start symbol among all the candidate start symbols, then the terminal device can determine that the index value of the first symbol of the resource that actually sends the information block 0 based on the sequence number 0 is 4 , And determine the OFDM symbol index value of the first symbol of the information block 3 and the index of the time slot where the symbol is located according to the default relationship between the information block 3 and the information block 0 to obtain downlink synchronization.
[0085]
In another specific example, the number of symbols between the resources of different information blocks can be directly set to represent the predetermined mapping relationship.
[0086]
For example: Figure 7 is a schematic diagram of the predetermined mapping relationship of each information block. As shown in Figure 7, in the information block group, the resources of information block 0 and information block 1 are continuous, and there is no interval symbol between them; information block 1 and The resources of the information block 2 are separated by 4 symbols; the resources of the information block 2 and the information block 3 are continuous, and there is no separation symbol between the two.
[0087]
As shown in Figure 7, when the network device detects that the channel is idle at candidate start symbol 1, the information block group starts from candidate start symbol 1 and sends the information block group according to the predetermined number of symbols between the information blocks. Each information block, and when the terminal device detects an information block, the identification information of the candidate start symbol and the number of symbols between the resources of different information blocks are sent by the network device to obtain time synchronization. The specific method can refer to the previous example, which will not be repeated here.
[0088]
In another way of sending each information block, each information block can be sent on a preset time-frequency resource. For example, within a time interval, an integer number (e.g., greater than one) of time-frequency resources used to send information blocks can be predefined, and each time-frequency resource has a one-to-one correspondence with time, where the integer number (e.g., In the time-frequency resources, the start symbols of the first N time-frequency resources can be set as candidate start symbols, that is, N candidate start symbols are preset, and N is a natural number greater than 1. The information blocks in the information block group are sequentially sent on the time-frequency resource, starting from a candidate start symbol, on the number of consecutive information blocks starting from the candidate start symbol.
[0089]
Fig. 8 is a schematic diagram of preset time-frequency resources. As shown in Figure 8, 80 to 87 are preset 8 time-frequency resources for sending information blocks in a time interval, and candidate start symbols 0 to 4 correspond to the start symbols of time-frequency resources 80 to 84, respectively. , Where the candidate start symbol 0 is, for example, the symbol 4 of the time slot 0 in the time interval.
[0090]
As shown in Figure 8, the network device can start sending the information block group from candidate start symbol 1, that is, the four information blocks 0, 1, 2, 3 in the information block group are in the time-frequency resources 81, 82, 83, and 84, respectively. Was sent on. For example, after the terminal device receives the information block 2, it can determine the preset time of the information block 2 in the time interval according to the indication information (that is, the start symbol of the sending information block group is the candidate start symbol 1). Is sent on the frequency resource, for example, 2+1=3 (that is, the index value of the information block + the identification information of the candidate start symbol = the sequence number of the time-frequency resource), and according to the third time-frequency resource 83 and the time The one-to-one correspondence relationship obtains downlink synchronization.
[0091]
In the first embodiment, the indication information can be carried in the master system information block (MIB: Master Information Block) of the PBCH in the information block sent by the network device or carried in the system message block 1 (SIB1: System Information Block). Block1).
[0092]
In this embodiment, the indication information may also be expressed as the relative relationship between the SSB in the information block sent by the network device and other signals or channels, and the relative relationship may be, for example, a time domain or frequency domain mapping relationship. That is, when the SSB has a different relative relationship with other signals or channels, it can represent the identification information of different candidate start symbols. The other signal or channel may be a channel or signal included in the information block, for example, the control resource set 0 in the information block, or a channel state reference signal (CSI-RS: Channel State Information Reference Signal).
[0093]
Fig. 9 is a schematic diagram showing the indication information using the relative relationship between the SSB and other signals or channels. As shown in FIG. 9, the load of the PBCH may include first indication information for indicating the time-frequency resource of the control resource set 0 (CORESET 0). In FIG. 9, when the PBCH load in an information block (for example, information block 0) indicates that the frequency domain minimum resource block index of control resource set 0 is greater than the frequency domain of the resource block occupied by the SSB (for example, SSB0) in the information block The maximum value of the index indicates that the information block is sent in candidate resource 1 (for example, the start symbol is candidate start symbol 1); when the maximum value of the frequency domain index of the control resource set 0 indicated by the PBCH load in an information block is less than The minimum value of the frequency domain index in the resource block occupied by the SSB (for example, SSB3) in the information block indicates that the information block is sent in candidate resource 2 (for example, the start symbol is candidate start symbol 1). The terminal device determines the candidate resource through the relative relationship between the control resource set 0 and the SSB, and then determines the transmission symbol and the time slot index of the received information block to obtain downlink synchronization.
[0094]
In addition, in FIG. 9, after the LBT is successful, each information block is sent in the order of information block 2, information block 3, information block 0, and information block 1. However, it may not be limited to this. In FIG. 9, after the LBT is successful, each information block is sent in the order of information block 0, information block 1, information block 2, and information block 3.
[0095]
In the second embodiment, one time interval may include an integer number of preset first time-frequency resources for sending information blocks, and each first time-frequency resource may have one or more symbols. Wherein, the number of the integer preset first time-frequency resources in a time interval may be greater than the number of information blocks in the information block group of the cell.
[0096]
In this embodiment, the at least two candidate resources are the at least two first time-frequency resources used to send the information block identified by the same index value in the integer number of first time-frequency resources, that is, have the same index value The identified information block (for example, information block 2) may be transmitted on at least two first time-frequency resources, and the at least two time-frequency resources are at least two candidate resources of the information block (for example, information block 2).
[0097]
In a specific example, the indication information includes: identification information of a candidate resource that actually sends the information block among the at least two candidate resources.
[0098]
FIG. 10 is a schematic diagram of the first time-frequency resource and candidate resources. As shown in Figure 10, each candidate resource corresponds to a time-frequency resource. For each information block (for example, any one of information block 0 to information block 3), there are two candidate resources (ie, candidate resource 1 and candidate resource 2). Among them, the four candidate resources 1 in FIG. 10 can be The candidate resource group 1 is constituted, and the candidate resource 2 may constitute the candidate resource group 2.
[0099]
As shown in the darker information block in Figure 10, after the LBT is successful, the network device sends each information block in the order of information block 2, information block 3, information block 0, and information block 1. The instruction information of each information block includes Send the identification information of the candidate resource of the information block in at least two candidate resources of the information block. For example, for information block 3, the indication information is the identification information "1" of candidate resource 1 in the two candidate resources of information block 3 (ie, candidate resource 1 and candidate resource 2); for another example, for information block 0, the indication The information is the identification information "2" of candidate resource 2 among the two candidate resources of information block 0 (ie, candidate resource 1 and candidate resource 2).
[0100]
In this specific example, the terminal device can obtain downlink synchronization through the correspondence between the candidate sending position and the time. For example, the terminal device detects the information block 1 in FIG. 10, and the indication information indicates that the information block is sent in candidate resource 2 in the candidate resource. The terminal device obtains the information block 1 and the slot sequence number from the start symbol of the information block 1 of the candidate resource 2. Downlink synchronization.
[0101]
In the specific example corresponding to, for example, FIG. 10, the indication information may be carried in the master system information block (MIB: Master Information Block) of the PBCH in the information block sent by the network device or carried in the system message block 1. (SIB1: System Information Block1); or, the indication information can also be expressed as the relative relationship between the SSB in the information block sent by the network device and other signals or channels, that is, when the SSB is different from other signals or channels. The relative relationship can indicate the identification information of different candidate resources. For a specific description, refer to the description of FIG. 9.
[0102]
In another specific example of the second embodiment, the indication information may include: identification information of the first time-frequency resource corresponding to a candidate resource that actually sends the information block in the integer number of first time-frequency resources.
[0103]
FIG. 11 is another schematic diagram of the first time-frequency resource and the candidate resource. As shown in FIG. 11, it is assumed that there are 8 first time-frequency resources preset in this time interval, the identification information of which is respectively 0-7, and each candidate resource corresponds to one time-frequency resource. For each information block (for example, any one of information block 0 to information block 3), there are two candidate resources. For example, the first time-frequency resource 0 and 4 are candidate resources of information block 0, and the first time-frequency resource Resources 1, 5 are candidate resources of information block 1, first time-frequency resources 2, 6 are candidate resources of information block 2, and first time-frequency resources 3, 7 are candidate resources of information block 3.
[0104]
As shown by the darker information block in Figure 11, after the LBT is successful, the network device sends each information block in the order of information block 2, information block 3, information block 0, and information block 1. The instruction information of each information block includes The identification information of the first time-frequency resource corresponding to the candidate resource of the information block is sent. For example, for information block 3, the indication information is the identification information "3" of the first time-frequency resource 3 of the information block 3; for another example, for the information block 0, the indication information is the first time-frequency resource 4 of the information block 0. The identification information "4".
[0105]
In this specific example, the terminal device can obtain downlink synchronization through the correspondence between the identification information of the first time-frequency resource and time; in addition, the terminal device can also match the identification information of the first time-frequency resource with the information block of the cell. The number of information blocks in the group is modulo-divided to obtain the index value of the received information block.
[0106]
For example, the terminal device detects a certain information block to be transmitted as shown in FIG. 11, and obtains the candidate resource for transmitting the information block through the DMRS and/or PBCH load as the first time-frequency resource 5. Resource 5 obtains the corresponding symbol and slot index to obtain downlink synchronization. In addition, the terminal equipment can also determine that the number of information blocks contained in the cell information block group is L=4 through the carrier frequency and/or sub-carrier spacing, or the number of information blocks contained in the information block group of the unlicensed band cell defaults to The value is L=4. Therefore, it can be calculated that the index of the information block is 5mod 4=1, and the index 1 of the information block can be used to perform measurement functions such as RRM and RLM.
[0107]
In the specific example corresponding to, for example, FIG. 11, the indication information may be determined by the demodulation reference signal (DMRS) sequence of the physical broadcast channel (PBCH) and/or the physical broadcast channel (PBCH) in the information block. Indicated by the load. For example, when the identification information of the first time-frequency resource is less than or equal to 8, the indication information can be indicated by DMRS or PBCH; when the identification information of the first time-frequency resource is greater than 8, it can be indicated by both DMRS and PBCH The instructions.
[0108]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource will be changed, the transmission corresponding to the information block can be clarified. Resources, which in turn facilitates the downlink synchronization of the terminal equipment.
[0109]
Example 2
[0110]
The second embodiment provides a signal receiving method, which is executed by a terminal device.
[0111]
FIG. 12 is a schematic diagram of a signal receiving method according to Embodiment 2 of the present application. As shown in Figure 12, the method includes:
[0112]
Step 1201: A terminal device receives information sent by a network device and used to indicate that an information block sent by the network device and received by the terminal device is sent to one of at least two candidate resources in a time interval. Instructions; and
[0113]
Step 1202: The terminal device obtains time synchronization according to the instruction information.
[0114]
In this embodiment, the information block includes at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB).
[0115]
In the first implementation manner of this embodiment, the network device transmits at least one information block in a time interval, and the at least one information block includes the one information block received by the terminal device. In this implementation manner, each information block in the at least one information block may have at least two candidate resources.
[0116]
Regarding the description of the first embodiment, reference may be made to the description of the first embodiment in Example 1, for example:
[0117]
In this embodiment, the indication information is used to indicate that the candidate start symbol of the first information block of the at least one information block is one of the at least two candidate start symbols, for example, the indication The information includes: identification information of the candidate start symbol.
[0118]
In this embodiment, the time domain intervals of adjacent candidate start symbols are equal, and the unit of the time domain interval is one of orthogonal frequency division multiplexing (OFDM) symbols, subframes, milliseconds and the information block.
[0119]
In this implementation manner, the terminal device obtains time synchronization through the indication information, the size of the time domain interval, and the index value of the one information block.
[0120]
In this implementation manner, the identification information of the one candidate start symbol includes: identification information of the OFDM symbol with a predetermined index value in the one time interval. The terminal device obtains time synchronization by serving as the indication information and the index value of the one information block.
[0121]
In this implementation manner, the network device may start from the candidate start symbol, and sequentially transmit the at least one information block on the predetermined time-frequency resource for transmitting the information block within the one time interval, in this case , The terminal device also needs to further combine the relationship between the predetermined time-frequency resource and time to obtain time synchronization.
[0122]
In this implementation manner, the network device may also start from the candidate start symbol and send the at least one information block according to a predetermined mapping relationship between the at least one information block. In this case, the terminal device needs to further Time synchronization is obtained in combination with the predetermined mapping relationship.
[0123]
In this embodiment, the indication information is carried in the master system information block (MIB: Master Information Block) of the PBCH or in the system message block 1 (SIB1: System Information Block1), or the indication information It is expressed as the relative time-domain or frequency-domain mapping relationship between the SSB in the information block and other signals or channels.
[0124]
In the second implementation manner of this embodiment, one time interval includes an integer number of first time-frequency resources used to send information blocks, and the at least two candidate resources are the integer number of first time-frequency resources used to send the same one. At least two of the first time-frequency resources of the information block identified by the index value. In this embodiment, the terminal device can obtain time synchronization according to the corresponding relationship between the indication information and the time.
[0125]
For the description of the second embodiment, refer to the description of the second embodiment in Example 1, for example:
[0126]
In a specific example of this implementation manner, the indication information may include: identification information of the one candidate resource in the at least two candidate resources.
[0127]
In this example, the terminal device can determine the first time-frequency resource to send the information block according to the identification information of the candidate resource and the received index value of the information block, thereby determining the start symbol and the first time-frequency resource of the first time-frequency resource. Time slot sequence number to obtain downlink synchronization.
[0128]
In this example, the indication information is carried in the master system information block (MIB: Master Information Block) of the PBCH or in the system message block 1 (SIB1: System Information Block1), or the indication information is expressed as The relative time-domain or frequency-domain mapping relationship between the SSB in the information block and other signals or channels.
[0129]
In another specific example of this implementation manner, the indication information may also include: identification information of the first time-frequency resource corresponding to one candidate resource in the integer number of first time-frequency resources.
[0130]
In this example, the terminal device can determine the first time-frequency resource for sending the information block according to the identification information of the first time-frequency resource, thereby determining the start symbol and the slot sequence number of the first time-frequency resource, thereby obtaining downlink synchronization . In addition, in this example, the terminal device can also obtain the index value of the received signal block according to the indication information and the number of information blocks contained in the cell information block group, for example, the two are modulo-divided to obtain the information block The index value of.
[0131]
In this example, the indication information may be indicated by the DMRS sequence and/or PBCH load of the PBCH of the one information block.
[0132]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource will be changed, the transmission corresponding to the information block can be clarified. Resources, which in turn facilitates the downlink synchronization of the terminal equipment.
[0133]
Example 3
[0134]
The third embodiment provides a signal sending device, which is set in a network device. Since the principle of the device to solve the problem is similar to the method of embodiment 1, its specific implementation can refer to the implementation of the method of embodiment 1, and the same content will not be repeated.
[0135]
FIG. 13 is a schematic diagram of the signal sending device of Embodiment 3. As shown in FIG. 13, the device 1300 includes:
[0136]
The sending unit 1301, which sends an indication for instructing one of the at least one information block sent by the network device to send one of the at least two candidate resources in the one time interval to one of the at least two candidate resources in the one time interval information.
[0137]
In this embodiment, the information block includes at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB).
[0138]
In this embodiment, the indication information includes: identification information of one of the at least two candidate start symbols of the first information block in the at least one information block.
[0139]
In this embodiment, the time domain intervals of the adjacent candidate start symbols are equal, and the unit of the time domain interval is one of OFDM symbols, subframes, milliseconds, and the information block.
[0140]
In this embodiment, the candidate start symbol is an OFDM symbol with a predetermined index value in the one time interval.
[0141]
In this embodiment, the network device sends at least one information block within the one time interval in the following manner: the network device starts from the one candidate resource, and is scheduled to be used for sending within the one time interval. The at least one information block is sent in order on the time-frequency resource of the information block.
[0142]
In this embodiment, the network device sends at least one information block within the one time interval in the following manner: the network device starts from the candidate start symbol and follows the predetermined interval between the at least one information block. The mapping relationship sends the at least one information block.
[0143]
In this embodiment, the one time interval includes an integer number of first time-frequency resources, the first time-frequency resource is used to send the information block, and the at least two candidate resources are the integer number of first time-frequency resources. In the frequency resource, at least two of the first time-frequency resources are used to send the information block identified by the same index value.
[0144]
In this embodiment, the indication information includes: identification information of the one candidate resource in the at least two candidate resources.
[0145]
In this embodiment, the indication information includes: identification information of the first time-frequency resource corresponding to the one candidate resource in the integer number of first time-frequency resources.
[0146]
In this embodiment, the indication information is carried in the master system information block (MIB: Master Information Block) of the PBCH in the one information block or is carried in the system message block 1 (SIB1: System Information Block1) .
[0147]
In this embodiment, the indication information is expressed as a relative time-domain or frequency-domain mapping relationship between the SSB in the information block and other signals or channels.
[0148]
In this embodiment, the indication information is indicated by the DMRS sequence and/or PBCH load of the PBCH in the one information block.
[0149]
For the detailed description of this embodiment, reference may be made to the description of the corresponding steps in Embodiment 1, and the description will not be repeated here.
[0150]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource will be changed, the transmission corresponding to the information block can be clarified. Resources, which in turn facilitates the downlink synchronization of the terminal equipment.
[0151]
Example 4
[0152]
The fourth embodiment provides a signal receiving device, which is set in a terminal device. Since the principle of the device to solve the problem is similar to the method of embodiment 2, its specific implementation can refer to the implementation of the method of embodiment 2, and the same content will not be repeated.
[0153]
FIG. 14 is a schematic diagram of the signal receiving device of the fourth embodiment. As shown in FIG. 14, the device 1400 includes:
[0154]
A receiving unit 1401, which receives information sent by a network device and used to instruct one information block sent by the network device and received by the terminal device to send one of the at least two candidate resources in the one time interval. Instructions; and
[0155]
The calculation unit 1402 obtains time synchronization according to the instruction information.
[0156]
In this embodiment, the information block includes at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB).
[0157]
In this embodiment, the network device transmits at least one information block in the one time interval, and the at least one information block includes the one information block.
[0158]
In this embodiment, the indication information includes: identification information of one of the at least two candidate start symbols of the first information block.
[0159]
In this embodiment, the time domain intervals of the adjacent candidate start symbols are equal, and the unit of the time domain interval is an Orthogonal Frequency Division Multiplexing (OFDM) symbol, subframe, millisecond and the information block in which one.
[0160]
In this embodiment, the calculation unit obtains time synchronization through the indication information, the size of the time domain interval, and the index value of the one information block.
[0161]
In this embodiment, the candidate start symbol is an OFDM symbol with a predetermined index value in the one time interval, and the calculation unit obtains time synchronization through the indication information and the index value of the one information block.
[0162]
In this embodiment, the network device starts from the one candidate start symbol, and sequentially transmits the at least one information block on a predetermined time-frequency resource for transmitting the information block within the one time interval, and the The calculation unit also obtains time synchronization according to the predetermined relationship between the time-frequency resource and the time.
[0163]
In this embodiment, the network device starts from the one candidate start symbol, and sends the at least one information block according to a predetermined mapping relationship between the at least one information block, and the calculation unit further transmits the at least one information block according to the predetermined mapping relationship. The mapping relationship is time synchronized.
[0164]
In this embodiment, the one time interval includes an integer number of first time-frequency resources used to send information blocks, and the at least two candidate resources are used to send the same index among the integer number of first time-frequency resources. At least two of the first time-frequency resources of the information block identified by the value.
[0165]
In this embodiment, the indication information includes: identification information of the one candidate resource in the at least two candidate resources.
[0166]
In this embodiment, the indication information includes: identification information of the first time-frequency resource corresponding to the one candidate resource in the integer number of first time-frequency resources.
[0167]
In this embodiment, the calculation unit obtains time synchronization according to the corresponding relationship between the indication information and the time.
[0168]
In this embodiment, the calculation unit further obtains the index value of the one signal block according to the indication information and the number of signal blocks included in the at least one signal block sent by the network device in the one time interval .
[0169]
In this embodiment, the indication information is carried in the master system information block (MIB: Master Information Block) of the PBCH in the one information block or is carried in the system message block 1 (SIB1: System Information Block1) .
[0170]
In this embodiment, the indication information is expressed as a relative time-domain or frequency-domain mapping relationship between the SSB in the information block and other signals or channels.
[0171]
In this embodiment, the indication information is indicated by the DMRS sequence of the PBCH in the one information block and/or the PBCH load.
[0172]
For the detailed description of Embodiment 4, please refer to the description of the corresponding steps in Embodiment 2, and the description will not be repeated here.
[0173]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource will be changed, the transmission corresponding to the information block can be clarified. Resources, which in turn facilitates the downlink synchronization of the terminal equipment.
[0174]
Example 5
[0175]
This embodiment 5 provides a terminal device. Since the principle of the device to solve the problem is similar to the method of embodiment 2, its specific implementation can refer to the method of embodiment 2, and the same content will not be repeated.
[0176]
FIG. 15 is a schematic diagram of the structure of a terminal device according to an embodiment of the present application. As shown in FIG. 15, the terminal device 1500 may include: a central processing unit (CPU) 1501 and a memory 1502; the memory 1502 is coupled to the central processing unit 1501. The memory 1502 can store various data; in addition, it also stores a data processing program, and the program is executed under the control of the central processing unit 1501 to instruct the terminal device according to the received signaling.
[0177]
In an implementation manner, the functions of the apparatus 1400 of Embodiment 4 may be integrated into the central processing unit 1501 of the terminal device 1500. Wherein, the central processing unit 1501 may be configured to implement the method described in the second embodiment.
[0178]
For example, the central processing unit 1501 may be configured to perform control so that the terminal device 1500 executes the method of the second embodiment.
[0179]
In addition, other configurations of the central processing unit 1501 can refer to Embodiment 2, which will not be repeated here.
[0180]
In another embodiment, the above-mentioned device 1400 can be configured separately from the central processing unit 1501. For example, the device 1400 can be configured as a chip connected to the central processing unit 1501, such as the unit shown in FIG. Control to realize the functions of the device 1400.
[0181]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource will be changed, the transmission corresponding to the information block can be clarified. Resources, which in turn facilitates the downlink synchronization of the terminal equipment.
[0182]
Example 6
[0183]
The sixth embodiment provides a network device. The principle of the device to solve the problem is similar to the method of embodiment 1. Therefore, its specific implementation can refer to the method of embodiment 1, and the same content will not be repeated.
[0184]
FIG. 16 is a schematic diagram of the structure of a network device according to an embodiment of the present invention. As shown in FIG. 16, the network device 1600 may include: a central processing unit (CPU) 1601 and a memory 1602; the memory 1602 is coupled to the central processing unit 1601. The memory 1602 can store various data; in addition, it also stores a data processing program, and the program is executed under the control of the central processing unit 1601.
[0185]
In one embodiment, the functions of the device 1300 may be integrated into the central processing unit 1601. Wherein, the central processing unit 1601 may be configured to implement the method of Embodiment 1.
[0186]
For example, the central processing unit 1601 may be configured to perform control so that the network device 1600 executes the method of Embodiment 1.
[0187]
In addition, for other configurations of the central processing unit 1601, please refer to Embodiment 1, which will not be repeated here.
[0188]
In another embodiment, the above-mentioned device 1300 can be configured separately from the central processing unit 1601. For example, the device 1300 can be configured as a chip connected to the central processing unit 1601, as shown in FIG. 16, through the central processing unit 1601. Control to realize the functions of the device 1300.
[0189]
In addition, as shown in FIG. 16, the network device 1600 may further include: a transceiver 1603, an antenna 1604, etc.; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the network device 1600 does not necessarily include all the components shown in FIG. 16; in addition, the network device 1600 may also include components not shown in FIG. 16, which can refer to the prior art.
[0190]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource will be changed, the transmission corresponding to the information block can be clarified. Resources, which in turn facilitates the downlink synchronization of the terminal equipment.
[0191]
Example 7
[0192]
The seventh embodiment provides a communication system, which includes at least the terminal device 1500 in the fifth embodiment and the network device 1600 in the sixth embodiment. The contents of Embodiment 5 and Embodiment 6 are combined here, and will not be repeated here.
[0193]
According to this embodiment, the transmission resource of the information block is indicated by the indication information, so that even if the default correspondence between the information block index and the transmission resource will be changed, the transmission corresponding to the information block can be clarified. Resources, which in turn facilitates the downlink synchronization of the terminal equipment.
[0194]
The embodiment of the present invention also provides a computer-readable program, wherein when the program is executed in the sending device or the network device, the program causes the sending device or the network device to execute the sending method of Embodiment 1.
[0195]
The embodiment of the present invention also provides a storage medium storing a computer readable program, wherein the computer readable program causes the sending apparatus or network device to execute the sending method of Embodiment 1.
[0196]
The embodiment of the present invention also provides a computer-readable program, wherein when the program is executed in the receiving device or terminal device, the program causes the receiving device or terminal device to execute the receiving method of Embodiment 2.
[0197]
The embodiment of the present invention also provides a storage medium storing a computer-readable program, wherein the computer-readable program enables the receiving apparatus or terminal device to execute the receiving method of Embodiment 2.
[0198]
The above devices and methods of the present invention can be implemented by hardware, or can be implemented by hardware combined with software. The present invention relates to such a computer-readable program, when the program is executed by a logic component, the logic component can realize the above-mentioned device or constituent component, or the logic component can realize the above-mentioned various methods Or steps. The present invention also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, and the like.
[0199]
The processing methods in each device described in conjunction with the embodiments of the present invention may be directly embodied in hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in FIGS. 13 and 14 and/or one or more combinations of the functional block diagrams may correspond to each software module of the computer program flow or each hardware module. These software modules can respectively correspond to the steps shown in Figures 4 and 12. These hardware modules can be implemented, for example, by using a field programmable gate array (FPGA) to solidify these software modules.
[0200]
The software module can be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art. A storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be a component of the processor. The processor and the storage medium may be located in the ASIC. The software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a larger-capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
[0201]
One or more of the functional block diagrams described in FIGS. 13 and 14 and/or one or more combinations of the functional block diagrams can be implemented as a general-purpose processor or a digital signal processor (DSP) for performing the functions described in the present application. , Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof. One or more of the functional block diagrams described in FIGS. 5 and 6 and/or one or more combinations of the functional block diagrams can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, and multiple micro-processing Processor, one or more microprocessors in communication with the DSP, or any other such configuration.
[0202]
The present invention has been described above in conjunction with specific embodiments, but it should be clear to those skilled in the art that these descriptions are all exemplary and do not limit the protection scope of the present invention. Those skilled in the art can make various variations and modifications to the present invention based on the principles of the present invention, and these variations and modifications are also within the scope of the present invention.
[0203]
This application also provides the following supplementary notes:
[0204]
1. A signal sending device, which is set in a network device, the sending device comprising:
[0205]
A sending unit, which sends indication information used to instruct the network device to send one of the at least one information block in a time interval to send one of the at least two candidate resources in the one time interval .
[0206]
2. The device described in Supplement 1, wherein:
[0207]
The information block includes at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB).
[0208]
3. The device according to Supplement 1 or 2, wherein:
[0209]
The indication information includes: identification information of one of the at least two candidate start symbols of the first information block in the at least one information block.
[0210]
4. The device as described in appendix 3, wherein:
[0211]
The time domain intervals of the adjacent candidate start symbols are equal, and the unit of the time domain interval is one of OFDM symbols, subframes, milliseconds, and the information block.
[0212]
5. The device as described in appendix 3, wherein:
[0213]
The candidate starting symbol is an OFDM symbol with a predetermined index value in the one time interval.
[0214]
6. The device according to appendix 3, wherein:
[0215]
The network device sends at least one information block within the one time interval in the following manner:
[0216]
The network device starts from the one candidate resource, and sends the at least one information block in sequence on a predetermined time-frequency resource for sending the information block within the one time interval.
[0217]
7. The device as described in appendix 3, wherein:
[0218]
The network device sends at least one information block within the one time interval in the following manner:
[0219]
Starting from the candidate start symbol, the network device sends the at least one information block according to a predetermined mapping relationship between the at least one information block.
[0220]
8. The device according to Supplement 1 or 2, wherein:
[0221]
The one time interval includes an integer number of first time-frequency resources, and the first time-frequency resources are used to send the information block,
[0222]
The at least two candidate resources are at least two of the first time-frequency resources used for sending the information block identified by the same index value in the integer number of first time-frequency resources.
[0223]
9. The device according to Supplement 8, wherein:
[0224]
The indication information includes: identification information of the one candidate resource in the at least two candidate resources.
[0225]
10. The device according to Supplement 8, wherein:
[0226]
The indication information includes: identification information of the first time-frequency resource corresponding to the one candidate resource in the integer number of first time-frequency resources.
[0227]
11. The device according to Supplement 3 or 9, wherein:
[0228]
The indication information is carried in the master system information block (MIB: Master Information Block) of the PBCH in the information block or is carried in the system message block 1 (SIB1: System Information Block 1).
[0229]
12. The device according to Supplement 3 or 9, wherein:
[0230]
The indication information is expressed as a relative time-domain or frequency-domain mapping relationship between the SSB in the one information block and other signals or channels.
[0231]
13. The device according to Supplement 10, wherein:
[0232]
The indication information is indicated by the DMRS sequence of the PBCH in the one information block and/or the load of the PBCH.
[0233]
14. A signal receiving device, which is provided in a terminal device, the receiving device comprising:
[0234]
A receiving unit, which receives instruction information sent by a network device, where the instruction information is used to instruct an information block sent by the network device and received by the terminal device to be sent in at least two candidate resources in a time interval A candidate resource for; and
[0235]
The calculation unit obtains time synchronization according to the instruction information.
[0236]
15. The device as described in Supplement 14, wherein:
[0237]
The information block includes at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB).
[0238]
16. The device according to Supplement 14, wherein:
[0239]
The network device transmits at least one information block in the one time interval, and the at least one information block includes the one information block.
[0240]
17. The device according to Supplement 16, wherein:
[0241]
The indication information includes: identification information of one of the at least two candidate start symbols of the first information block in the at least one information block.
[0242]
18. The device according to Supplement 17, wherein:
[0243]
The time domain intervals of the adjacent candidate start symbols are equal, and the unit of the time domain interval is one of Orthogonal Frequency Division Multiplexing (OFDM) symbols, subframes, milliseconds, and the information block.
[0244]
19. The device according to Supplement 18, wherein:
[0245]
The identification information of the one candidate start symbol includes: the number of time domain intervals between the one candidate start symbol and the first candidate start symbol of the at least two candidate start symbols,
[0246]
The calculation unit obtains time synchronization through the indication information, the size of the time domain interval, and the index value of the one information block.
[0247]
20. The device according to Supplement 17, wherein:
[0248]
The at least one candidate starting symbol is an OFDM symbol with a predetermined index value in the one time interval,
[0249]
The identification information of the one candidate start symbol includes: the identification information of the OFDM symbol of the predetermined index value,
[0250]
The calculation unit obtains time synchronization through the index value of the indication information and the one information block.
[0251]
21. The device according to Supplement 19 or 20, wherein:
[0252]
Starting from the one candidate start symbol, the network device sequentially sends the at least one information block on a predetermined time-frequency resource for sending information blocks within the one time interval,
[0253]
The calculation unit also obtains time synchronization according to the predetermined relationship between the time-frequency resource and the time.
[0254]
22. The device according to Supplement 19 or 20, further comprising:
[0255]
Starting from the one candidate start symbol, the network device sends the at least one information block according to a predetermined mapping relationship between the at least one information block,
[0256]
The calculation unit also obtains time synchronization according to the predetermined mapping relationship.
[0257]
23. The apparatus according to appendix 14, wherein the one time interval includes an integer number of first time-frequency resources for sending information blocks,
[0258]
The at least two candidate resources are at least two of the first time-frequency resources used for sending information blocks identified by the same index value among the integer number of first time-frequency resources.
[0259]
24. The device according to Supplement 23, wherein:
[0260]
The indication information includes: identification information of the one candidate resource in the at least two candidate resources.
[0261]
25. The device according to Supplement 23, wherein:
[0262]
The indication information includes: identification information of the first time-frequency resource corresponding to the one candidate resource in the integer number of first time-frequency resources.
[0263]
26. The device according to Supplement 24 or 25, wherein:
[0264]
The calculation unit obtains time synchronization according to the corresponding relationship between the indication information and the time.
[0265]
27. The device according to Supplement 25, wherein:
[0266]
The calculation unit further obtains the index value of the one signal block according to the indication information and the number of signal blocks included in the at least one signal block sent by the network device in the one time interval.
[0267]
28. The apparatus according to appendix 16 or 24, wherein the indication information is carried in a master system information block (MIB: Master Information Block) of the PBCH in the one information block or is carried in a system message block 1 (SIB1: System Information Block1).
[0268]
29. The device according to Supplement 16 or 24, wherein the indication information is expressed as a relative time-domain or frequency-domain mapping relationship between the SSB in the information block and other signals or channels.
[0269]
30. The device according to Supplement 25, wherein:
[0270]
The indication information is indicated by the DMRS sequence of the PBCH in the one information block and/or the load of the PBCH.
[0271]
31. A communication system having network equipment and terminal equipment,
[0272]
Wherein, the network device has the sending device according to any one of Supplements 1-13, and the terminal device has the receiving device according to any one of Supplements 14-30.
Claims
[Claim 1]
A signal sending device is provided in a network device. The sending device includes: a sending unit for sending one of at least one information block that is used to instruct the network device to send within a time interval. Indication information of one of the at least two candidate resources in the time interval.
[Claim 2]
The apparatus of claim 1, wherein the information block includes at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB).
[Claim 3]
The apparatus according to claim 2, wherein the indication information comprises: identification information of one of the at least two candidate start symbols of the first information block in the at least one information block.
[Claim 4]
The apparatus according to claim 2, wherein the one time interval includes an integer number of first time-frequency resources, the first time-frequency resources are used to send the information block, and the at least two candidate resources are the In the integer number of first time-frequency resources, at least two of the first time-frequency resources are used to send the information block identified by the same index value.
[Claim 5]
The apparatus according to claim 4, wherein the indication information comprises: identification information of the one candidate resource in the at least two candidate resources.
[Claim 6]
5. The apparatus according to claim 4, wherein the indication information comprises: identification information of the first time-frequency resource corresponding to the one candidate resource in the integer number of first time-frequency resources.
[Claim 7]
The apparatus according to claim 2, wherein the indication information is carried in the one information block or is carried in a system information block 1 (SIB1: System Information Block1).
[Claim 8]
The apparatus according to claim 2, wherein the indication information is expressed as a relative time-domain or frequency-domain mapping relationship between the SSB in the information block and other signals or channels.
[Claim 9]
The apparatus according to claim 2, wherein the indication information is indicated by the DMRS sequence of the PBCH in the one information block and/or the load of the PBCH.
[Claim 10]
A signal receiving device, which is set in a terminal device, the receiving device includes: a receiving unit, which receives instruction information sent by a network device, the instruction information being used to instruct the network device to send and be sent by the terminal device The received one information block is sent to one of the at least two candidate resources in one time interval; and a calculation unit, which obtains time synchronization according to the indication information.
[Claim 11]
The apparatus according to claim 10, wherein the information block includes at least a synchronization signal/physical broadcast channel block (SS/PBCH Block, SSB).
[Claim 12]
The apparatus according to claim 11, wherein the indication information comprises: one candidate among the at least two candidate start symbols of the first information block in the at least one information block sent by the network device in a time interval The identification information of the start symbol.
[Claim 13]
The apparatus according to claim 11, wherein the one time interval includes an integer number of first time-frequency resources used to send information blocks, and the at least two candidate resources are used among the integer number of first time-frequency resources. Sending at least two of the first time-frequency resources of the information block identified by the same index value.
[Claim 14]
The apparatus according to claim 13, wherein the indication information comprises: identification information of the one candidate resource in the at least two candidate resources, and the calculation unit is based on the index value and the indication information The corresponding relationship with time obtains time synchronization.
[Claim 15]
The apparatus according to claim 14, wherein the indication information is carried in a master system information block (MIB: Master Information Block) included in the one information block or is carried in a system message block 1 (SIB1: System Information Block). Block1).
[Claim 16]
The apparatus according to claim 14, wherein the indication information is expressed as a relative time-domain or frequency-domain mapping relationship between the SSB in the information block and other signals or channels.
[Claim 17]
The apparatus according to claim 13, wherein the indication information comprises: identification information of the first time-frequency resource corresponding to the one candidate resource in the integer number of first time-frequency resources, and the calculation unit Time synchronization is obtained according to the corresponding relationship between the instruction information and the time.
[Claim 18]
17. The apparatus according to claim 17, wherein the calculation unit further obtains the number of signal blocks included in the at least one signal block sent by the network device in the one time interval according to the indication information The index value of the signal block.
[Claim 19]
The apparatus according to claim 17, wherein the indication information is indicated by the DMRS sequence of the PBCH in the one information block and/or the load of the PBCH.
[Claim 20]
A communication system, the communication system has a network device and a terminal device, wherein the network device has the sending device according to any one of claims 1-9, and the terminal device has the transmission device according to any one of claims 1-9. The receiving device described in any one of.