WO2019169639A1

WO2019169639A1 - Data transmission method, device and computer-readable storage medium

Info

Publication number: WO2019169639A1
Application number: PCT/CN2018/078636
Authority: WO
Inventors: 李振宇; 南杨; 韩金侠; 张武荣
Original assignee: 华为技术有限公司
Priority date: 2018-03-09
Filing date: 2018-03-09
Publication date: 2019-09-12
Also published as: CN111656833A

Abstract

Provided in the present application is a data transmission method, comprising: a network device sends first downlink information and/or second downlink information over a fixed channel, the sub-frames on the fixed channel all being downlink sub-frames, the first downlink information being used for indicating the uplink and downlink sub-frame ratio of a data channel and the second downlink information being used for indicating the uplink and downlink sub-frame ratio of the fixed channel; and the network device receives uplink information sent by a terminal device over the data channel. The technical solution provided in the present application can effectively prevent mutual interference between uplink reception and downlink transmission between adjacent cells over the fixed channel.

Description

Method, device and computer readable storage medium for transmitting data

Technical field

The present application relates to the field of communications and, more particularly, to a method, apparatus, and computer readable storage medium for transmitting data.

Background technique

For a system operating on an unlicensed spectrum, in order to reduce the synchronization search delay when the terminal device (for example, may be a user equipment (UE)) initially accesses, the network device (for example, may be a base station) is usually in one The pre-agreed fixed frequency points send messages such as synchronization and broadcast, and the fixed frequency points of the messages such as synchronization and broadcast are also referred to as fixed channels. The fixed channel includes an uplink subframe in addition to the downlink subframe used for transmitting synchronization and broadcasting.

It is difficult to achieve synchronization between cells in an unlicensed spectrum resource. In the prior art, when the cell and the neighboring cell are not synchronized, the uplink receiving of the cell may interfere with the downlink sending of the neighboring cell. Since the frequency of the fixed channel is fixed, the frequency of the fixed channel between adjacent cells may be the same, and the mutual interference between the downlink transmission and the uplink reception on the fixed channel between the adjacent cells will be difficult to eliminate.

Therefore, how to effectively avoid mutual interference between uplink reception and downlink transmission between adjacent cells on a fixed channel becomes a problem to be solved.

Summary of the invention

The present application provides a method, a device, and a computer readable storage medium for transmitting data, which can effectively avoid mutual interference between uplink receiving and downlink sending between adjacent cells on a fixed channel.

A first aspect provides a method for transmitting data, where: a network device sends first downlink information and/or second downlink information on a fixed channel, where subframes on the fixed channel are downlink subframes, where The first downlink information is used to indicate an uplink-downlink subframe ratio of the data channel, and the second downlink information is used to indicate an uplink-downlink subframe ratio of the fixed channel; the network device is on the data channel. Receive uplink information sent by the terminal device.

In the foregoing technical solution, the subframes on the fixed channel are all downlink subframes, and the mutual interference between the uplink receiving and the downlink sending between the adjacent cells on the fixed channel can be effectively avoided when the cells are not synchronized.

In a possible implementation manner, the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, where the fixed channel is in the frequency domain. Corresponding to at least one preset fixed frequency point, the corresponding frequency point of the data channel in the frequency domain is different from the at least one preset fixed frequency point of the fixed channel, and the data channel is at the frequency The corresponding frequency on the domain changes in a frequency hopping manner.

In a possible implementation manner, the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, where the fixed channel is in the frequency domain. Corresponding to at least one preset fixed frequency point, the corresponding frequency point of the data channel in the frequency domain is the same as the at least one preset fixed frequency point of the fixed channel.

In a possible implementation, the network device sends the first downlink information and/or the second downlink information on the fixed channel, where the subframes on the fixed channel are all downlink subframes, and the method further includes: In the carrier configuration, the network device sends the first downlink information and/or the second downlink information on the fixed channel, where the multi-carrier subframes on the fixed channel are downlink subframes, and the multiple The subframe ratio of each carrier in the carrier is the same.

In the above technical solution, in the multi-carrier configuration on the unlicensed spectrum, the multi-carrier subframes on the fixed channel are all downlink sub-frames, and can effectively avoid the adjacent channels on the fixed channel when the cells are not synchronized. Mutual interference between uplink reception and downlink transmission between cells.

In a possible implementation manner, the first downlink information and/or the second downlink information is carried on a broadcast message and/or a synchronization message, where the broadcast message includes a physical broadcast channel PBCH and/or a system information block. SIB.

In a possible implementation manner, the broadcast message includes at least one of the following information: a list of available channels of the data channel; and a number of available channels of the data channel.

The second aspect provides a method for transmitting data, including: the network device sends the first downlink information and/or the second downlink information in a downlink subframe of the fixed channel, where the uplink subframe of the fixed channel does not send information. The first downlink information is used to indicate an uplink and downlink subframe ratio of the data channel, the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel, and the network device is on a data channel. Receive uplink information sent by the terminal device.

In the foregoing technical solution, the first downlink information and/or the second downlink information may be sent in a downlink subframe on the fixed channel, and the fixed channel uplink subframe does not send information, so that the cells may be out of synchronization when the cells are not synchronized. Mutual interference between uplink reception and downlink transmission between adjacent cells on the fixed channel is effectively avoided.

In a possible implementation, the network device sends the first downlink information and/or the second downlink information in a downlink subframe of the fixed channel, where the uplink subframe of the fixed channel does not send information, and the method further includes: In the multi-carrier configuration, the network device sends the first downlink information and/or the second downlink information on the downlink subframe of the fixed channel multi-carrier, where the uplink subframe of the fixed channel multi-carrier is not sent. Information, the subframe ratio of each of the multiple carriers is the same.

A third aspect provides a method for transmitting data, including: receiving, by a terminal device, first downlink information and/or second downlink information on a fixed channel, where subframes on the fixed channel are downlink subframes, where The first downlink information is used to indicate an uplink and downlink subframe ratio of the data channel, and the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel; The row information communicates with the network device on the data channel.

In the foregoing technical solution, the subframes on the fixed channel are all downlink subframes, so that mutual interference between uplink reception and downlink transmission between adjacent cells on the fixed channel can be effectively avoided when the cells are not synchronized.

In a possible implementation, the terminal device receives the first downlink information and/or the second downlink information on the fixed channel, where the subframes on the fixed channel are all downlink subframes, and the method further includes: In the carrier configuration, the terminal device receives the first downlink information and/or the second downlink information on the fixed channel, where the multi-carrier subframes on the fixed channel are all downlink subframes, where the multi-carrier is The subframe ratio of each carrier is the same.

A fourth aspect provides a method for transmitting data, including: receiving, by a terminal device, first downlink information and/or second downlink information in a downlink subframe of a fixed channel, where an uplink subframe of the fixed channel does not send information. The first downlink information is used to indicate an uplink and downlink subframe ratio of the data channel, and the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel; A downlink message communicates with the network device on the data channel.

In a possible implementation manner, the terminal device receives the first downlink information and/or the second downlink information on the fixed channel, where the uplink subframe of the fixed channel does not send information, and further includes: configuring in multiple carriers And the terminal device receives the first downlink information and/or the second downlink information on the downlink subframe of the fixed channel multi-carrier, where the uplink subframe of the multi-carrier does not send information, where the multiple The subframe ratio of each carrier in the carrier is the same.

In a fifth aspect, a chip is provided, including a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program is executed, The processor performs the method described in the first aspect or any one of the possible implementations of the first aspect by the transceiver.

In a sixth aspect, a chip is provided, including a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program is executed, The processor performs the method described in the second aspect or any one of the possible implementations of the second aspect by the transceiver.

In a seventh aspect, a chip is provided, including a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program is executed, The processor performs the method described in the third aspect or any one of the possible implementations of the third aspect by the transceiver.

In an eighth aspect, a chip is provided, including a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program is executed, The processor performs the method described in any one of the possible implementations of the fourth aspect or the fourth aspect by the transceiver.

In a ninth aspect, a network device is provided, comprising: a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program is When executed, the processor performs the method described in the first aspect or any one of the possible implementations of the first aspect by the transceiver.

According to a tenth aspect, a network device is provided, comprising: a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program is When executed, the processor performs the method described in the second aspect or any one of the possible implementations of the second aspect by the transceiver.

In an eleventh aspect, a terminal device is provided, comprising: a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program When executed, the processor performs the method described in any one of the possible implementations of the third aspect or the third aspect through the transceiver.

According to a twelfth aspect, a terminal device is provided, comprising: a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program When executed, the processor performs the method described in any one of the possible implementations of the fourth aspect or the fourth aspect by the transceiver.

A thirteenth aspect, a computer readable storage medium, comprising computer instructions, when the computer instructions are run on the network device, causing the network device to perform the first aspect or the first aspect The method described in any of the possible implementations.

A fourteenth aspect, a computer readable storage medium, comprising computer instructions, when the computer instruction is run on the terminal device, causing the terminal device to perform the third aspect or the third aspect The method described in any of the possible implementations.

In a fifteenth aspect, a computer program product is provided, wherein when the computer program product is run on the network device, the network device is caused to perform any one of the first aspect or the first aspect The method described in the implementation.

In a sixteenth aspect, a computer program product is provided, wherein when the computer program product is run on the terminal device, the terminal device is caused to perform any one of the third aspect or the third aspect The method described in the implementation.

DRAWINGS

FIG. 1 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application.

FIG. 2 is a schematic structural diagram of a subframe ratio of a fixed channel and a data channel in a frame structure according to an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a subframe ratio of a fixed channel and a data channel in another frame structure according to an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a multi-carrier subframe ratio of a fixed channel and a data channel in a frame structure according to an embodiment of the present disclosure.

FIG. 5 is a schematic flowchart of a method for transmitting data according to another embodiment of the present application.

FIG. 6 is a schematic structural diagram of an apparatus for transmitting data according to an embodiment of the present application.

Detailed ways

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example, a cellular-based narrow band internet of things (NB-IoT) system, a global system of mobile communication (GSM) system, Code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), global interconnected microwave access (worldwide) Interoperability for microwave access, WiMAX) communication system, future fifth generation (5th generation, 5G) system or new radio (NR).

The embodiment of the present application does not specifically limit the type of the terminal device, and may be any device used for communication with the network device. The terminal device may be, for example, a user equipment, an access terminal, a terminal device, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless network device, a user agent, or a user device. The terminal may include, but is not limited to, a relay node, a mobile station (MS), a mobile telephone, a user equipment (UE), a handset, and a portable device. , cell phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), radio frequency identification for logistics (radio) Frequency identification (RFID) terminal device, handheld device with wireless communication function, computing device or other device connected to wireless modem, in-vehicle device, wearable device, Internet of things, terminal device in vehicle network, and terminal in future 5G network A device or a terminal device in a public land mobile network (PLMN) network that is evolving in the future.

By way of example and not limitation, in the embodiment of the present invention, the terminal device may also be a wearable device. A wearable device, which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design everyday wearable devices and to develop wearable devices such as glasses, gloves, watches, apparel, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.

The embodiment of the present application does not specifically limit the type of the network device, and may be any device used for communication with the terminal device, and the network device may be, for example, a global system of mobile communication (GSM) or a code division multiple access ( A base transceiver station (BTS) in a code division multiple access (CDMA) system may also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or may be a long term evolution. An evolved base station (eNB) or an eNodeB in a long term evolution (LTE) system, or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device For example, it may be a relay station, an access point, an in-vehicle device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network.

As a possible way, the network device may be composed of a centralized unit (CU) and a distributed unit (DU). One CU can be connected to one DU, or multiple DUs can share one CU, which can save costs and facilitate network expansion. The severing of CU and DU can be divided according to the protocol stack. One possible way is to use radio resource control (RRC), service data adaptation protocol (SDAP), and packet data convergence protocol. The (packet data convergence protocol, PDCP) layer is deployed in the CU, and the remaining Radio Link Control (RLC) layer, media access control (MAC) layer, and physical layer are deployed in the DU.

The fixed channel mentioned in the embodiment of the present application may be a channel corresponding to any fixed frequency. For convenience of description, the channel corresponding to the fixed frequency is hereinafter referred to as a fixed channel, and may also be referred to as an anchor channel.

The embodiment of the present application does not specifically limit the frequency corresponding to the mentioned data channel. As an example, the communication device may select a frequency point other than the frequency corresponding to the fixed channel as a data channel frequency point in a frequency hopping manner. As another example, the data channel has a frequency point corresponding to at least one predetermined fixed frequency point of the fixed channel in the frequency domain. The data channel in the embodiment of the present application may also be referred to as a data channel.

The embodiment of the present application provides a method for transmitting data, which can effectively avoid mutual interference between uplink receiving and downlink sending between adjacent cells on a fixed channel. The embodiments of the present application are described in detail below with reference to FIGS.

FIG. 1 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application. The method of Figure 1 may include steps 110-120, which are described in detail below.

In step 110, the network device sends the first downlink information and/or the second downlink information on the fixed channel, where the subframes on the fixed channel are all downlink subframes, and the first downlink information is used to indicate the data channel. The uplink and downlink subframes are matched, and the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel.

Optionally, in some embodiments, the network device may send the first downlink information on a fixed channel.

Optionally, in some embodiments, the network device may further send the first downlink information and the second downlink information on the fixed channel.

It should be understood that the uplink and downlink subframe ratio of the data channel and the uplink and downlink subframe ratio of the fixed channel may be separately indicated. In some embodiments, the uplink and downlink subframe proportions of the fixed channel may also not exist.

The embodiment of the present application does not specifically limit the signal that carries the first downlink information and/or the second downlink information. As an example, the first downlink information and/or the second downlink information may be carried by a synchronization signal, for example, may be carried by a primary synchronization signal (PSS) or a secondary synchronization signal (SSS). As another example, the first downlink information and/or the second downlink information may also be carried by the broadcast signal.

The content of the second downlink information is not specifically limited in this embodiment of the present application. As an example, the second downlink information may indicate an uplink and downlink subframe ratio of the fixed channel. As another example, the second downlink information may also be used to indicate the content of the information carried on the fixed channel downlink subframe. For example, the content carried on the downlink subframe on the fixed channel may be PBCCH and/or SIB and/or NPDCCH and/or NPDSCH.

The specific implementation manner of the second downlink information mentioned in the embodiment of the present application may be used to indicate the content of the information carried on the fixed channel downlink subframe. It should be noted that the following examples are only intended to assist those skilled in the art to understand the embodiments of the present application, and the application examples are not limited to the specific numerical examples or specific examples. Various modifications and changes can be made by those skilled in the art based on the examples given herein, and such modifications and variations are also within the scope of the embodiments of the present application.

Optionally, in some embodiments, two PSS sequences (for example, a first PSS sequence and a second PSS sequence) may be preset. When the terminal device performs synchronization detection, when the first PSS sequence is blindly detected, The information carried by the fixed channel downlink subframe indicated by the second downlink information may be the first preset scheme (for example, within one frame of the fixed channel, except for the synchronization channel, there are two designated subframes for transmitting the broadcast signal). When the terminal device blindly detects the second PSS sequence, it may indicate that the information carried by the fixed channel downlink subframe indicated by the second downlink information is a second preset scheme (for example, in a frame on the fixed channel, except for the synchronization channel, all The subframe is used to transmit a broadcast signal).

Optionally, in some embodiments, the number of sequences of PSS or SSS may also be increased, which may be used to implicitly indicate that more subframes carry content.

In the embodiment of the present application, the second downlink information indicates the information carried on the fixed channel downlink subframe, and the network device (for example, the base station) can select the downlink subframe on the fixed channel more flexibly according to the current coverage requirement. The content that is carried.

In the embodiment of the present application, when the first downlink information is used to indicate the uplink and downlink subframe ratio of the data channel, and/or the second downlink information is used to indicate the uplink and downlink subframe ratio of the fixed channel, the first The implementation of the synchronization and/or broadcast bearer is not specifically limited. As an example, the first downlink information and/or the second downlink information may be implicitly indicated by a PSS or SSS sequence. For example, the terminal device may obtain the first downlink information and/or by blindly detecting different PSS or SSS sequences. Second downlink information. As another example, the first downlink information and/or the second downlink information may be carried by the broadcast message. For example, the first downlink information and/or the second downlink information may be carried by the PBCH or the SIB, and, for example, may be agreed in advance. Several subframe allocation methods, and the bits carried by the PBCH or the SIB in the broadcast message indicate which subframe allocation method is specifically.

The first downlink information used in the embodiment of the present application is used to indicate the uplink and downlink subframe ratio of the data channel, and/or the second downlink information is used to indicate the upper and lower subframes of the fixed channel. In the case of a row subframe ratio, the first downlink information and/or the second downlink information are carried out by a specific implementation of synchronization and broadcast. It should be noted that the following examples are only intended to assist those skilled in the art to understand the embodiments of the present application, and the application examples are not limited to the specific numerical examples or specific examples. Various modifications and changes can be made by those skilled in the art based on the examples given herein, and such modifications and variations are also within the scope of the embodiments of the present application.

Optionally, in some embodiments, the first downlink information and/or the second downlink information may be implicitly indicated by a PSS or SSS sequence, and the terminal device may obtain the first by blindly detecting different PSS or SSS sequences. Downstream information and/or second downlink information. As an example, two PSS sequences, for example, a first PSS sequence and a second PSS sequence, may be preset. When the terminal device performs synchronization detection, the first downlink information may be indicated when the first PSS sequence is blindly detected. And the subframe ratio indicated by the second downlink information is the ratio scheme 1 (for example, the scheme 1 of the subframe ratio is that all subframes are all downlink). When the terminal device blindly detects the second PSS sequence, it may indicate that the subframe ratio indicated by the first downlink information and/or the second downlink information is the ratio scheme 2 (for example, scheme 2 of the subframe ratio is all children) The frames are all up). It is also possible to increase the number of sequences of PSS or SSS for implicitly indicating more subframe matching schemes.

Optionally, in some embodiments, the first downlink information and/or the second downlink information may be by a broadcast message (such as a physical broadcast channel (PBCH) and/or a system information block (system information block). SIB)) carry. As an example, the first downlink information and/or the second downlink information may be carried by a PBCH or an SIB in a bitmap manner.

Specifically, the following describes that the first downlink information and/or the second downlink information may indicate a subframe ratio of 10 subframes as an example. It can be indicated by a binary sequence of length 10, where each binary number corresponds to one subframe, for example, '0' is an uplink subframe (which can be represented as 'U'), and '1' is a downlink subframe (can be represented) For 'D'), for example, '1100111000' can correspond to 'DDUUDDDUUU'. In this way, after the terminal device correctly decodes the PBCH or the SIB, the subframe allocation method of the data channel or the fixed channel can be obtained. It should be noted that if the number of subframes to be indicated is large, multiple subframes may be indicated by one binary digit. For example, four subframes may be indicated, that is, '0' is indicated as 'UUUU', and '01' is indicated as ' UUUUDDDD'.

Optionally, in some embodiments, several subframe allocation methods may be agreed in advance, and a bit that may be carried by a broadcast message (eg, PBCH or SIB) indicates which subframe allocation method is specifically. As an example, the following describes that the first downlink information and/or the second downlink information may indicate a subframe ratio of 10 subframes as an example. The optional subframe allocation method is shown in Table 1.

Table 1

A total of 12 seed frame ratios are described in Table 1, so a 4-bit indication is required. For example, when the terminal device reads the bit ratio of the subframe from the broadcast message to '0010', it is known that the base station adopts the subframe configuration method 2, and the lookup table obtainable subframe configuration is 'DDUUUUDDDD'.

In step 120, the network device receives uplink information sent by the terminal device on the data channel.

In the embodiment of the present application, the subframes on the fixed channel are all downlink subframes, and the mutual interference between the uplink receiving and the downlink sending on the fixed channel can be effectively avoided when the cells are not synchronized.

In the embodiment of the present application, other channels except the fixed channel on the unlicensed spectrum may be referred to as a data channel, and the subframes on the data channel may include, for example, a downlink subframe, an uplink subframe, and a special subframe.

Optionally, in some embodiments, the broadcast message may include at least one of the following: a list of available channels for the data channel; a number of available channels for the data channel.

It should be understood that after the terminal device can receive the available channel list of the data channel and/or the available channel number of the data channel on the fixed channel, the data channel can be calculated according to the available channel list of the data channel and/or the available channel number of the data channel. Which channel can be specifically occupied in the spectrum, the terminal device can communicate with the network device on the data channel according to the calculated location of the data channel.

It should be understood that in some embodiments, the corresponding frequency point of the data channel in the frequency domain is the same as the at least one predetermined fixed frequency point of the fixed channel. That is to say, in the case that the data channel may not use frequency hopping in the frequency domain, the broadcast message may not include the available channel list of the data channel and/or the available channel number of the data channel.

The implementation manner of the above-mentioned terminal device for determining the location of the data channel according to the available channel list of the data channel and/or the available channel number of the data channel is not specifically limited. As an example, the terminal device may calculate the frequency domain position of the data channel in the frequency spectrum based on the list of available channels and the frame number information carried on the PBCH and/or SIB received on the fixed channel. That is to say, the terminal device can calculate which channel the data channel can occupy in the spectrum according to the list of available channels and the frame number information carried on the PBCH and/or the SIB. The terminal device can communicate with the network device on the calculated data channel. This implementation will be described in detail below with reference to FIG. 5, and details are not described herein again.

The implementation manner of the communication between the terminal device and the network device on the data channel according to the first downlink information is not specifically limited. As an example, after receiving the synchronization signal sent by the network device, the terminal device may obtain the first downlink information, and continue to receive the PBCH and/or the SIB to obtain the frequency hopping information of the data channel, calculate the location of the data channel, and according to the The uplink and downlink subframe ratios of the data channel indicated by the downlink information are communicated with the network device on the data channel. As another example, after receiving the synchronization signal sent by the network device, the terminal device may continue to receive the PBCH and/or the SIB to obtain the frequency hopping information and the first downlink information of the data channel, and calculate the location of the data channel according to the frequency hopping information. And communicating with the network device on the data channel according to the uplink and downlink subframe ratio of the data channel indicated by the first downlink information.

Optionally, in some embodiments, the fixed channel used to send the first downlink information and/or the second downlink information may include an uplink subframe and a downlink subframe, where the downlink subframe may be sent. The first downlink information and/or the second downlink information may not send information on an uplink subframe of the fixed channel.

In the embodiment of the present application, the first downlink information and/or the second downlink information may be sent on the downlink subframe of the fixed channel, and the information may not be sent on the uplink subframe of the fixed channel, so that the fixed channel can be effectively avoided. Mutual interference between uplink reception and downlink transmission between adjacent cells.

The frame structure of the fixed channel and the data channel is not specifically limited in this embodiment of the present application. As an example, the data channel may be different in a first time unit corresponding to the time domain and a second time unit corresponding to the fixed channel in the time domain. The fixed channel may correspond to at least one preset fixed frequency point in the frequency domain, and the corresponding frequency point of the data channel in the frequency domain may be at least one preset fixed frequency point corresponding to the fixed channel in the frequency domain. Differently, the frequency points corresponding to the data channel in the frequency domain may be changed in a frequency hopping manner. As another example, the first time unit corresponding to the data channel in the time domain may be different from the second time unit corresponding to the fixed channel in the time domain, and the fixed channel may correspond to at least in the frequency domain. a preset fixed frequency point, wherein the data channel may have the same frequency point in the frequency domain as the at least one preset fixed frequency point of the fixed channel.

It should be understood that the first time unit of the data channel in the time domain may be different from the second time unit of the fixed channel in the time domain. In the frequency domain, the fixed channel may correspond to at least one preset fixed frequency point, and the frequency point of the data channel in the frequency domain may be different from the at least one fixed frequency point corresponding to the fixed channel (eg, the data channel is in the frequency domain) The frequency point may be changed in a frequency hopping manner, or the corresponding frequency point of the data channel in the frequency domain may be the same as the at least one fixed frequency point corresponding to the fixed channel. The two frame structures will be described in detail below with reference to FIG. 2 to FIG. 3, and details are not described herein again.

The subframe ratio on a fixed channel on the unlicensed spectrum mentioned in the embodiment of the present application will be described in more detail below with reference to specific examples. It should be noted that the example of FIG. 2 is only intended to help those skilled in the art to understand the embodiments of the present application, and is not intended to limit the application examples to the specific numerical values or specific examples. A person skilled in the art will be able to make various modifications and changes in accordance with the example of FIG. 2, and such modifications and variations are also within the scope of the embodiments of the present application.

FIG. 2 is a schematic structural diagram of a subframe ratio of a fixed channel and a data channel in a frame structure according to an embodiment of the present application. Referring to FIG. 2, the fixed channel may be fixed on at least one preset fixed frequency point on the unlicensed spectrum, and the frequency of the data channel may be changed by frequency hopping (that is, the data channel corresponds to the frequency domain). The frequency point may be different from at least one preset fixed frequency point corresponding to the fixed channel in the frequency domain).

Generally, a synchronization signal and/or a broadcast signal may be sent on a fixed channel, and a subframe transmitted on the data channel is not specifically limited. For example, it may be an uplink (UL) subframe or a downlink (downlink). , UL) subframe, which can also be a special subframe. The fixed channel and/or data channel may occupy one carrier in the frequency domain, and the bandwidth of the carrier may be, for example, 180 kHz. The time domain structure of the system may be similar to a long term evolution (LTE) system. The subframes of the fixed channel and/or the data channel are 1 ms long, the 10 subframes may be 1 frame, and the 1 frame length is 10 ms.

As shown in FIG. 2, the network device may send the first downlink information and/or the second downlink information on the fixed channel, where the first downlink information and/or the second downlink information may be, for example, carried in at least one of the following messages. One type: PSS, SSS, PBCH, SIB. And all subframes on the fixed channel are downlink subframes. After the communication device can stay on a fixed channel for a period of time (for example, the dwell time on the fixed channel can be 320 ms), a new frequency point can be selected as a data channel by means of frequency hopping, and the data channel can be Stay on for a while.

It should be noted that the time of camping on multiple data channels may be the same, but the time of camping on the data channel may be different than the time of camping on the fixed channel.

FIG. 3 is a schematic structural diagram of a subframe ratio of a fixed channel and a data channel in another frame structure according to an embodiment of the present application. Referring to FIG. 3, the fixed channel may be fixed on at least one preset fixed frequency point on the unlicensed spectrum, and the frequency of the data channel may also be the same as the at least one preset fixed frequency point corresponding to the fixed channel (that is, It is said that when the data channel is not hopped in the frequency domain, the corresponding frequency point of the data channel in the frequency domain may be the same as the at least one preset fixed frequency point corresponding to the fixed channel in the frequency domain).

Optionally, in some embodiments, if the unlicensed spectrum is configured in multiple carriers, the multi-carrier subframes on the fixed channel may be configured as downlink subframes, and the network device may send the first channel on the fixed channel. For the downlink information and/or the second downlink information, the subframe ratio of each of the multiple carriers is the same. For details, refer to the description of FIG. 1 , and details are not described herein. The subframe ratio of the fixed channel and the data channel multi-carrier will be described in detail below with reference to FIG.

In the embodiment of the present application, the PSS, the SSS, the PBCH, the SIB, and the like may be sent on the fixed channel. Since the subframes on the fixed channel can be set as the downlink subframe, the fixed channel can have more The downlink subframe is used to send messages such as PSS, SSS, PBCH, and SIB, so that the coverage capability can be improved.

The subframe ratio on the fixed channel in the multi-carrier configuration on the unlicensed spectrum mentioned in the embodiment of the present application is described in more detail below with reference to specific examples. It should be noted that the example of FIG. 4 is only intended to help those skilled in the art to understand the embodiments of the present application, and is not intended to limit the application examples to the specific numerical values or specific examples. A person skilled in the art will be able to make various modifications and changes in accordance with the example of FIG. 4, and such modifications and variations are also within the scope of the embodiments of the present application.

FIG. 4 is a schematic structural diagram of a multi-carrier subframe ratio of a fixed channel and a data channel in a frame structure according to an embodiment of the present disclosure. Referring to FIG. 4, the fixed channel can be fixed on a predetermined fixed frequency point on the unlicensed spectrum, and the frequency of the data channel can be changed by frequency hopping (that is, the corresponding frequency of the data channel in the frequency domain) The point and the fixed channel may differ in at least one preset fixed frequency point corresponding to the frequency domain). The fixed channel and/or data channel may occupy multiple carriers in the frequency domain (eg, the fixed channel and/or the data channel may occupy 3 carriers in the frequency domain), and the bandwidth of each carrier may be 180 kHz. The time domain structure of the system may be similar to a long term evolution (LTE) system. The subframes of the fixed channel and/or the data channel are 1 ms long, the 10 subframes may be 1 frame, and the 1 frame length is 10 ms.

As shown in FIG. 4, the network device may send the first downlink information and/or the second downlink information on the fixed channel, where the first downlink information and/or the second downlink information may be, for example, carried in at least one of the following messages. Kind of: PSS, SSS, PBCH, SIB. And all subframes on the fixed channel are downlink subframes. After the communication device can stay on a fixed channel for a period of time (for example, the dwell time on the fixed channel can be 320 ms), a new frequency point can be selected as a data channel by means of frequency hopping, and the data channel can be Stay on for a while.

It should also be noted that the communication device may camp on multiple data channels for the same time in a multi-carrier configuration on the unlicensed spectrum, but the time residing on the data channel may be the same as the time on the fixed channel. different.

The embodiments of the present application are described in more detail below with reference to specific examples. It should be noted that the example of FIG. 5 is only intended to help those skilled in the art to understand the embodiments of the present application, and is not intended to limit the application examples to the specific numerical values or specific examples. A person skilled in the art will be able to make various modifications and changes in accordance with the example of FIG. 5, and such modifications and variations are also within the scope of the embodiments of the present application.

The method of Figure 5 includes steps 510-540, which are described in detail below.

In step 510, the network device may send the first downlink information and/or the second downlink information on a fixed channel.

The subframes in the fixed channel mentioned above may all be downlink subframes, and the subframe ratio in the fixed channel may also include an uplink subframe or a downlink subframe, and the network device may be in the downlink of the fixed channel. The first downlink information and/or the second downlink information is sent on the frame, and the uplink subframe on the fixed channel may not need to send information.

In step 520, the terminal device may search for PSS and/or SSS on a fixed channel.

The terminal device may search for a PSS and/or an SSS carrying the first downlink information and/or the second downlink information on the fixed channel, and the terminal device may determine the subframe boundary according to the received PSS and/or SSS.

In step 530, the terminal device may search for PBCH and/or SIB on the fixed channel.

After receiving the PSS and/or SSS on the fixed channel, the terminal device may continue to search for and receive the PBCH and/or the SIB that carries the first downlink information and/or the second downlink information.

In step 540, the terminal device can communicate with the network device on the data channel.

The PBCH and/or SIB received by the terminal device may contain information required for frequency hopping. The information required for frequency hopping may include, but is not limited to, a list of available channels of the data channel, a number of available channels of the data channel, and the like.

The terminal device may calculate the location of the data channel based on the number of available channels and/or the list of available channels carried over the broadcast message (eg, may be PBCH and/or SIB). And according to the uplink and downlink subframe ratio of the data channel indicated in the first downlink information, the terminal device (for example, may be a base station) may be communicated on the data channel.

The method for transmitting data provided by the embodiment of the present application is described in detail below with reference to FIG. 1 to FIG. 5. The device for transmitting data provided by the embodiment of the present application is described in detail below with reference to FIG.

FIG. 6 is a schematic structural diagram of an apparatus for transmitting data according to an embodiment of the present application. The device 600 for transmitting data in FIG. 6 can perform the method of transmitting data as described in any of the embodiments of FIGS. The device 600 for transmitting data of FIG. 6 may include a memory 610, a processor 620, and a transceiver 630. The memory 610 can be used to store programs, and the processor 620 can be used to execute programs stored in the memory 610. When the program stored in the memory 610 is executed, the processor 620 can execute the method of transmitting data described in any of the above embodiments through the transceiver 630.

It should be understood that in the embodiment of the present application, the term "and/or" is merely an association relationship describing an associated object, indicating that there may be three relationships. For example, A and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.

In the above embodiments, the processor may be a central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the program of the present application. Execution of integrated circuits, etc. For example, the processor can include a digital signal processor device, a microprocessor device, an analog to digital converter, a digital to analog converter, and the like. The processor can distribute the control and signal processing functions of the mobile device among the devices according to their respective functions. Additionally, the processor can include functionality to operate one or more software programs, which can be stored in memory.

The memory can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of information and instructions that can be stored. Dynamic storage device. It can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, and a disc storage (including a compact disc, a laser disc, a compact disc, a digital versatile disc, a Blu-ray disc, etc.), a disk storage medium or other magnetic storage device, or any other device that can be used to carry or store desired program code in the form of an instruction or signal structure and accessible by a computer. Medium, but not limited to this. The memory can exist independently or it can be integrated with the processor.

The transceiver can include, for example, an infrared transceiver, a transceiver, a universal universal bus (USB) transceiver, a Bluetooth transceiver, and the like. Although not shown, the terminal device and the network device can transmit information (or signals) through the transmitter using a corresponding communication technology, and/or receive information (signals) through the receiver.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)). .

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A method for transmitting data, comprising:

The network device sends the first downlink information and/or the second downlink information on the fixed channel, where the subframes on the fixed channel are downlink subframes, and the first downlink information is used to indicate the uplink and downlink subframes of the data channel. a frame ratio, where the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel that is displayed;

The network device receives uplink information sent by the terminal device on the data channel.
The method according to claim 1, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, where the corresponding frequency point of the data channel in the frequency domain is different from the at least one preset fixed frequency point of the fixed channel, the data channel The corresponding frequency points in the frequency domain are changed in a frequency hopping manner.
The method according to claim 1, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, the corresponding frequency point of the data channel in the frequency domain is the same as the at least one preset fixed frequency point of the fixed channel.
The method according to any one of claims 1 to 3, wherein the network device transmits first downlink information and/or second downlink information on a fixed channel, and subframes on the fixed channel are both For the downlink subframe, it also includes:

In the multi-carrier configuration, the network device sends the first downlink information and/or the second downlink information on the fixed channel, where the multi-carrier subframes on the fixed channel are downlink subframes, The subframe ratio of each carrier in the multi-carrier is the same.
The method according to any one of claims 1 to 4, wherein the first downlink information and/or the second downlink information are carried on a broadcast message and/or a synchronization message, wherein the broadcast message includes Physical broadcast channel PBCH and/or system information block SIB.
The method of claim 5 wherein said broadcast message includes at least one of the following:

a list of available channels of the data channel;

The number of available channels of the data channel.
A method for transmitting data, comprising:

The network device sends the first downlink information and/or the second downlink information on the downlink subframe of the fixed channel, where the uplink subframe of the fixed channel does not send information, and the first downlink information is used to indicate the upper and lower sides of the data channel. a downlink subframe ratio, where the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel;

The network device receives uplink information sent by the terminal device on the data channel.
The method according to claim 7, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, where the corresponding frequency point of the data channel in the frequency domain is different from the at least one preset fixed frequency point of the fixed channel, the data channel The corresponding frequency points in the frequency domain are changed in a frequency hopping manner.
The method according to claim 7, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, the corresponding frequency point of the data channel in the frequency domain is the same as the at least one preset fixed frequency point of the fixed channel.
The method according to any one of claims 7 to 9, wherein the network device transmits first downlink information and/or second downlink information on a downlink subframe of a fixed channel, where the fixed channel The uplink subframe does not send information, and includes:

In the multi-carrier configuration, the network device sends the first downlink information and/or the second downlink information on the downlink subframe of the fixed channel multi-carrier, where the uplink subframe of the fixed channel multi-carrier is not sent. Information, the subframe ratio of each of the multiple carriers is the same.
The method according to any one of claims 7 to 10, wherein the first downlink information and/or the second downlink information is carried on a broadcast message and/or a synchronization message, wherein the broadcast message includes Physical broadcast channel PBCH and/or system information block SIB.
The method of claim 11 wherein said broadcast message includes at least one of the following:

a list of available channels of the data channel;

The number of available channels of the data channel.
A method for transmitting data, comprising:

The terminal device receives the first downlink information and/or the second downlink information on the fixed channel, where the subframes on the fixed channel are downlink subframes, and the first downlink information is used to indicate uplink and downlink subframes of the data channel. a frame ratio, where the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel;

The terminal device communicates with the network device on the data channel according to the first downlink information.
The method according to claim 13, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, where the corresponding frequency point of the data channel in the frequency domain is different from the at least one preset fixed frequency point of the fixed channel, the data channel The corresponding frequency points in the frequency domain are changed in a frequency hopping manner.
The method according to claim 13, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, the corresponding frequency point of the data channel in the frequency domain is the same as the at least one preset fixed frequency point of the fixed channel.
The method according to any one of claims 13 to 15, wherein the terminal device receives the first downlink information and/or the second downlink information on a fixed channel, and the subframes on the fixed channel are both For the downlink subframe, it also includes:

In the multi-carrier configuration, the terminal device receives the first downlink information and/or the second downlink information on the fixed channel, where the multi-carrier subframes on the fixed channel are downlink subframes, and the multiple The subframe ratio of each carrier in the carrier is the same.
The method according to any one of claims 13 to 16, wherein the first downlink information and/or the second downlink information is carried on a broadcast message and/or a synchronization message, wherein the broadcast message includes Physical broadcast channel PBCH and/or system information block SIB.
The method of claim 17, wherein the broadcast message includes at least one of the following information:

a list of available channels of the data channel;

The number of available channels of the data channel.
A method for transmitting data, comprising:

The terminal device receives the first downlink information and/or the second downlink information on the downlink subframe of the fixed channel, where the uplink subframe of the fixed channel does not send information, and the first downlink information is used to indicate the upper and lower sides of the data channel. a downlink subframe ratio, where the second downlink information is used to indicate an uplink and downlink subframe ratio of the fixed channel;

The terminal device communicates with the network device on the data channel according to the first downlink information.
The method according to claim 19, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, where the corresponding frequency point of the data channel in the frequency domain is different from the at least one preset fixed frequency point of the fixed channel, the data channel The corresponding frequency points in the frequency domain are changed in a frequency hopping manner.
The method according to claim 19, wherein the first time unit corresponding to the data channel in the time domain is different from the second time unit corresponding to the fixed channel in the time domain, the fixed channel Corresponding to at least one preset fixed frequency point in the frequency domain, the corresponding frequency point of the data channel in the frequency domain is the same as the at least one preset fixed frequency point of the fixed channel.
The method according to any one of claims 19 to 21, wherein the terminal device receives the first downlink information and/or the second downlink information on the fixed channel, and the uplink subframe of the fixed channel is not Sending information also includes:

In the multi-carrier configuration, the terminal device receives the first downlink information and/or the second downlink information on the downlink subframe of the fixed channel multi-carrier, where the uplink subframe of the multi-carrier does not transmit the information on the fixed channel. The subframe ratio of each of the multiple carriers is the same.
The method according to any one of claims 19 to 22, wherein the first downlink information and/or the second downlink information are carried on a broadcast message and/or a synchronization message, wherein the broadcast message includes Physical broadcast channel PBCH and/or system information block SIB.
The method of claim 23, wherein the broadcast message includes at least one of the following information:

a list of available channels of the data channel;

The number of available channels of the data channel.
A network device, comprising: a memory, a processor, and a transceiver,

The memory is used to store a program;

The processor is operative to execute a program stored in the memory, the processor executing the method of any one of claims 1 to 6 by the transceiver when the program is executed.
A network device, comprising: a memory, a processor, and a transceiver,

The memory is used to store a program;

The processor is operative to execute a program stored in the memory, the processor executing the method of any one of claims 7 to 12 via the transceiver when the program is executed.
A terminal device, comprising: a memory, a processor, and a transceiver,

The memory is used to store a program;

The processor is operative to execute a program stored in the memory, the processor executing the method of any one of claims 13 to 18 through the transceiver when the program is executed.
A terminal device, comprising: a memory, a processor, and a transceiver,

The memory is used to store a program;

The processor is operative to execute a program stored in the memory, the processor executing the method of any one of claims 19 to 24 through the transceiver when the program is executed.
A computer readable storage medium, comprising computer instructions, when said computer instructions are run on said network device, causing said network device to perform the method of any one of claims 1 to 12. .
A computer readable storage medium, comprising computer instructions for causing the terminal device to perform the method of any one of claims 13 to 24 when the computer instruction is run on the terminal device .