CN106664692A - Data transmission method, device and system on shared frequency spectrum - Google Patents

Abstract

Disclosed are a data receiving and sending method on a shared frequency spectrum, a base station and a user equipment. The receiving method comprises: a base station sending first control information to a user equipment; the base station receiving first indication information from the user equipment; the base station sending second indication information to the user equipment according to the first indication information; and the base station receiving first data from the user equipment according to the second indication information and the first control information. The embodiments of the present invention can improve the utilization efficiency of a shared frequency spectrum.

Description

Data transmission method, device and system on shared spectrum technical field

Embodiments of the present invention relate to a communication system, and in particular to a data transmission method, device and system on a shared frequency spectrum.

Background technique

Spectrum resources are the basis of wireless communication, and unlicensed (unlicensed) spectrum resources are larger than licensed spectrum resources. At present, the main technology used on unlicensed spectrum is Wireless Fidelity (WiFi), but WiFi has defects in mobility, security, quality of service (Quality of Service, QoS), and simultaneous processing of multi-user scheduling. Therefore, applying Long-term Evolution (LTE) equipment to unlicensed spectrum can not only effectively utilize unlicensed spectrum resources, but also provide more effective wireless access and meet the growing demand for mobile broadband services.

Since there are no restrictions on the use of wireless communication systems and operators on the unlicensed spectrum, the unlicensed spectrum is a shared spectrum, that is, there are situations where multiple operators of various communication systems want to occupy the same spectrum. Wireless communication devices need to follow specific laws and regulations when using unlicensed spectrum. For example, ETSI EN 301893 issued by the European Telecommunications Standards Institute (ETSI) stipulates that when using the unlicensed spectrum Before Talk, LBT), channel bandwidth occupation requirements and other rules. According to the LBT rules, before using the channel, the device first monitors whether the channel is idle, and if the channel is idle, the channel on the unlicensed spectrum can be used.

For a Long Term Evolution (LTE) communication system, when a base station (evolvedNodeB, eNB) and a user equipment (User Equipment, UE) transmit uplink data, the base station needs to send control information to the user equipment, and the user equipment then The control information sends data to the base station to complete the transmission of uplink data. It takes a certain time interval from when the base station sends control information to the user equipment to when the user equipment sends data to the base station according to the control information. When the base station and the user equipment use the unlicensed spectrum for uplink data transmission, the user equipment must first monitor the unlicensed spectrum according to the LBT principle. When the unlicensed spectrum is detected to be idle, the user equipment can occupy the unlicensed spectrum. The frequency spectrum sends uplink data to the base station according to the control information. If the user equipment does not detect that the unlicensed spectrum is idle within the time interval, that is, it detects that the unlicensed spectrum is occupied, the user equipment cannot If the unlicensed spectrum is occupied within a period, and the base station cannot know that the user equipment does not occupy the unlicensed spectrum at this time, the user equipment cannot complete the sending of uplink data according to the control information.

Therefore, on the one hand, it is an invalid transmission for the base station to send control information to the user equipment; on the other hand, the spectrum resource allocated by the base station to the user equipment will not be allocated to other user equipment at the same time, resulting in the defect of low spectrum utilization efficiency.

Contents of the invention

Embodiments of the present invention provide a method for receiving and transmitting data on a shared spectrum, a base station, and user equipment, which can improve spectrum utilization efficiency.

In a first aspect, a method for receiving data on a shared frequency spectrum is provided, including: a base station sends first control information to a user equipment; the base station receives first indication information from the user equipment, and the first indication information is used for indicating that the user equipment can occupy the shared spectrum; the base station sends second indication information to the user equipment according to the first indication information, and the second indication information is used to indicate to the user equipment that in the shared spectrum The device that sends data to the base station according to the first control information is the user equipment; the base station receives the first data from the user equipment according to the second indication information and the first control information.

In a first possible implementation manner, when the base station receives the first indication information from the user equipment, the base station also receives fourth indication information from other user equipment, where the fourth indication information is used to indicate The other user equipment can occupy the shared frequency spectrum; after the base station also receives fourth indication information from other user equipment, the base station sends fifth indication information to the other user equipment, and the fifth indication information is used to indicate For the other user equipment, the device that sends data to the base station according to the first control information in the shared frequency spectrum is not the other user equipment.

With reference to the first aspect or the first possible implementation manner, in a second possible implementation manner, before the base station receives the first indication information from the user equipment, the base station sends third indication information to the For the user equipment, the third indication information is used to indicate a valid time range of the first control information.

With reference to the first aspect or the second possible implementation manner, in a third possible implementation manner, the base station sends the second indication information to the user equipment according to the first indication information. Sending second indication information to the user equipment according to the first indication information at any time, where the second indication information is used to indicate to the user equipment that in the shared spectrum according to the first indication information, A device for sending data to the base station by control information is the user equipment, specifically, the second indication information is used to instruct the user equipment to start from time n+t in the shared spectrum according to the first control information The device that sends data to the base station is the user equipment, and the base station receives the first data from the user equipment according to the second indication information and the first control information, specifically, the base station receives the first data from the user equipment according to the second The indication information and the first control information receive, from the user equipment, the first data sent by the user equipment starting from the n+t moment, where t is a preset time length.

With reference to the third possible implementation manner, in a fourth possible implementation manner, the method further includes: the base station determining a stop time for the user equipment to send the first data, where the stop time is n+t+v, the v is a preset time length, the value of v is carried in the second indication information, or the stop moment is determined by the base station according to the sixth indication information, wherein the second indication information Six indication information is sent by the user equipment to the base station to indicate that the user equipment has finished sending the first data.

With reference to the third or fourth possible implementation manner, in a fifth possible implementation manner, the base station sends second control information to the user equipment; when the base station receives the first indication from the user equipment After information, before receiving the first data sent by the user equipment starting from the n+t time, the base station receives second data from the user equipment according to the second control information.

With reference to the fifth possible implementation manner, in a sixth possible implementation manner, the second indication information is further used to instruct the base station to stop receiving the second data.

With reference to the first aspect, any one of the possible implementation manners from the first to the sixth, in a seventh possible implementation manner, the first indication information or the second indication information or the fourth indication information or The fifth indication information is carried by a preset sequence or by a physical control channel.

With reference to the first aspect, any one of the possible implementation manners from the first to the sixth, in an eighth possible implementation manner, the first indication information or the second indication information or the fourth indication information or The fifth indication information may be sent through the shared frequency spectrum.

With reference to the first aspect, any one of the possible implementation manners from the first to the eighth, in the ninth possible implementation manner, the shared frequency spectrum is a wireless communication system operated by a different wireless communication operator or a different wireless Spectrum that can be shared by communication systems.

In a second aspect, a base station is provided, including: a sending unit, configured to send first control information to user equipment; a receiving unit, configured to receive first indication information from the user equipment, and the first indication information is used for indicating that the user equipment can occupy the shared frequency spectrum; the sending unit is further configured to send second indication information to the user equipment according to the first indication information, the second indication information is used to indicate the user equipment, The device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment; the receiving unit is further configured to receive from the base station according to the second indication information and the first control information The user equipment receives first data.

In a first possible implementation manner, when the receiving unit receives the first indication information from the user equipment, the receiving unit also receives fourth indication information from other user equipment, and the fourth indication information uses In order to indicate that the other user equipment can occupy the shared frequency spectrum; after the receiving unit also receives fourth indication information from other user equipment, the sending unit sends fifth indication information to the other user equipment, and the fifth indication The information is used to indicate the other user equipment, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is not the other user equipment.

With reference to the second aspect or the first possible implementation manner, in the second possible implementation manner, before the receiving unit receives the first indication information from the user equipment, the sending unit sends the third indication information to In the user equipment, the third indication information is used to indicate a valid time range of the first control information.

With reference to the second aspect or the second possible implementation manner, in a third possible implementation manner, the sending unit sends the second indication information to the user equipment according to the first indication information, specifically the sending unit Sending second indication information to the user equipment according to the first indication information at time n, where the second indication information is used to instruct the user equipment to send to the user equipment according to the first control information in the shared spectrum The device for the base station to send data is the user equipment, specifically, the second indication information is used to instruct the user equipment to send data to the base station in the shared frequency spectrum according to the first control information from time n+t The device is the user equipment, and the receiving unit receives the first data from the user equipment according to the second indication information and the first control information, specifically, the receiving unit receives the first data from the user equipment according to the second indication information and the The first control information receives, from the user equipment, the first data sent by the user equipment starting from the n+t moment, where the t is a preset time length.

With reference to the third possible implementation manner, in a fourth possible implementation manner, the base station further includes a processing unit configured to determine a stop moment for the user equipment to send the first data, where, The stop moment is n+t+v, the v is a preset time length, the value of v is carried in the second instruction information, or the stop moment is determined by the processing unit according to the sixth instruction information determined, wherein the sixth indication information is sent by the user equipment to the base station to indicate that the user equipment has finished sending the first data.

With reference to the third or fourth possible implementation manner, in a fifth possible implementation manner, the sending unit is further configured to send second control information to the user equipment; After the user equipment receives the first indication information, before receiving the first data sent by the user equipment from the n+t moment, the receiving unit receives the first data from the user equipment according to the second control information Second data.

With reference to the fifth possible implementation manner, in a sixth possible implementation manner, the second indication information is further used to instruct the receiving unit to stop receiving the first Second data.

With reference to the second aspect, any one of the first to sixth possible implementation manners, in a seventh possible implementation manner, the first indication information or the second indication information or the fourth indication information or The fifth indication information is carried by a preset sequence or by a physical control channel.

With reference to the second aspect, any one of the first to sixth possible implementation manners, in an eighth possible implementation manner, the first indication information or the second indication information or the fourth indication information or The fifth indication information may be sent through the shared frequency spectrum.

With reference to the second aspect, any one of the possible implementation manners from the first to the eighth, in the ninth possible implementation manner, the shared frequency spectrum is a wireless communication system operated by a different wireless communication operator or a different wireless Spectrum that can be shared by communication systems.

In a third aspect, a method for sending data on a shared frequency spectrum is provided, including: a user equipment receives first control information from a base station; the user equipment sends first indication information to the base station, and the first indication information is used to indicate The user equipment can occupy a shared frequency spectrum; the user equipment receives second indication information sent by the base station according to the first indication information, and the second indication information is used to indicate to the user equipment that in the shared spectrum The device that sends data to the base station according to the first control information is the user equipment; the user equipment sends first data to the base station according to the second indication information and the first control information.

In a first possible implementation manner, before the user equipment receives the first control information from the base station, the user equipment receives third indication information from the base station, where the third indication information is used to indicate that the first - The time frame within which the control information is valid.

With reference to the third aspect and the first possible implementation manner, in a second possible implementation manner, the user equipment receives second indication information sent by the base station according to the first indication information, specifically the user equipment receiving the second indication information sent by the base station according to the first indication information at time n, where the second indication information is used to instruct the user equipment to send information to the user equipment according to the first control information in the shared spectrum The device for the base station to send data is the user equipment, specifically, the second indication information is used to instruct the user equipment to send data to the base station in the shared frequency spectrum according to the first control information from time n+t The device is the user equipment, and the user equipment sends the first data to the base station according to the second indication information and the first control information. Specifically, the user equipment starts from time n+t according to the first Two indication information and the first control information send the first data to the base station, where the t is a preset time length.

With reference to the second possible implementation manner, in a third possible implementation manner, the user equipment stops sending the first data at a stop moment, where the stop moment is n+t+v, and the v is a preset time length, the value of v is carried in the second indication information, or the stop moment is determined by the base station according to sixth indication information, where the sixth indication information is sent by the user equipment Instructing the base station to indicate that the user equipment has finished sending the first data.

With reference to the third aspect and the first possible implementation manner, in a fourth possible implementation manner, after the user equipment sends the first indication information to the base station, and after the user equipment sends the first indication information to the base station according to the second Before the indication information and the first control information send the first data to the base station, the user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum.

With reference to the second possible implementation manner, in a fifth possible implementation manner, after the user equipment sends the first indication information to the base station and before the n+t time, the user equipment sends A first signal, where the first signal is used to occupy the shared frequency spectrum.

With reference to the fifth possible implementation manner, in a sixth possible implementation manner, the second indication information is further used to instruct the user equipment to stop sending the first signal at the time n+t.

With reference to the second possible implementation manner, in a seventh possible implementation manner, the user equipment receives second control information from the base station; after the user equipment sends the first indication information to the base station, the Before the n+t time, the user equipment sends the second data to the base station according to the second control information.

With reference to the seventh possible implementation manner, in an eighth possible implementation manner, the second indication information is further used to instruct the user equipment to stop sending information to all The base station sends the second data.

With reference to the third aspect, any one of the possible implementation manners from the first to the eighth, in a ninth possible implementation manner, the first indication information or the second indication information is determined by a preset sequence or by Physical control channel bearer.

With reference to the third aspect and any one of the first to ninth possible implementation manners, in a tenth possible implementation manner, after the user equipment receives the first control information from the base station, and after the user equipment Before the device sends the first indication information to the base station, the user equipment detects the shared frequency spectrum to generate the first indication information.

With reference to the third aspect, any one of the possible implementation manners from the first to the tenth, in the eleventh possible implementation manner, the shared frequency spectrum is a wireless communication system operated by a different wireless communication operator or a different Spectrum that can be shared by wireless communication systems.

In a fourth aspect, there is provided a user equipment, which is characterized by comprising: a receiving unit, configured to receive first control information from a base station; a sending unit, configured to send first indication information to the base station, the first indication information used to indicate that the user equipment can occupy the shared frequency spectrum; the receiving unit is further configured to receive second indication information sent by the base station according to the first indication information, the second indication information is used to indicate that the user equipment The device, the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment; the sending unit is configured to send data to the base station according to the second indication information and the first control information The base station sends first data.

In a first possible implementation manner, before the receiving unit receives the first control information from the base station, the receiving unit receives third indication information from the base station, where the third indication information is used to indicate that the first - The time frame within which the control information is valid.

With reference to the fourth aspect and the first possible implementation manner, in a second possible implementation manner, the receiving unit receives the second indication information sent by the base station according to the first indication information, specifically the receiving unit receiving the second indication information sent by the base station according to the first indication information at time n, where the second indication information is used to instruct the user equipment to send information to the user equipment according to the first control information in the shared spectrum The device for the base station to send data is the user equipment, specifically, the second indication information is used to instruct the user equipment to send data to the base station in the shared frequency spectrum according to the first control information from time n+t The device is the user equipment, and the sending unit sends the first data to the base station according to the second indication information and the first control information. Specifically, the sending unit starts from time n+t according to the first data Two indication information and the first control information send the first data to the base station, where the t is a preset time length.

In combination with the second possible implementation, in the third possible implementation, the sending unit The unit stops sending the first data at a stop moment, where the stop moment is n+t+v, and v is a preset time length, and the second indication information carries the value of v, or The stop moment is determined by the base station according to sixth indication information, where the sixth indication information is sent by the user equipment to the base station to instruct the user equipment to finish sending the first data.

With reference to the fourth aspect and the first possible implementation manner, in a fourth possible implementation manner, after the sending unit sends the first indication information to the base station, and after the sending unit transmits the first indication information according to the second Before the indication information and the first control information send the first data to the base station, the sending unit sends a first signal, where the first signal is used to occupy the shared frequency spectrum.

With reference to the second possible implementation manner, in a fifth possible implementation manner, after the sending unit sends the first indication information to the base station and before the n+t time, the sending unit sends A first signal, where the first signal is used to occupy the shared frequency spectrum.

With reference to the fifth possible implementation manner, in a sixth possible implementation manner, the second indication information is further used to instruct the sending unit to stop sending the first signal at the time n+t.

With reference to the fifth possible implementation manner, in a seventh possible implementation manner, the receiving unit receives second control information from the base station; after the sending unit sends the first indication information to the base station, the Before the n+t time, the sending unit sends the second data to the base station according to the second control information.

With reference to the seventh possible implementation manner, in an eighth possible implementation manner, the second indication information is further used to instruct the sending unit to stop sending the The base station sends the second data.

With reference to the fourth aspect, any one of the possible implementation manners from the first to the eighth, in a ninth possible implementation manner, the first indication information or the second indication information is determined by a preset sequence or by Physical control channel bearer.

With reference to the fourth aspect and any one of the first to ninth possible implementation manners, in a tenth possible implementation manner, the user equipment further includes a processing unit, where the receiving unit receives the first After the control information and before the sending unit sends the first indication information to the base station, the processing unit is configured to detect the shared frequency spectrum to generate the first indication information.

With reference to the fourth aspect, any one of the possible implementation manners from the first to the tenth, in the eleventh possible implementation manner, the shared frequency spectrum is a wireless communication system operated by a different wireless communication operator or a different Spectrum that can be shared by wireless communication systems.

In the fifth aspect, a method for sending data on a shared frequency spectrum is provided, including: The station receives first control information; the user equipment sends first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy the shared frequency spectrum; the user equipment receives the base station according to the second indication information sent by the first indication information, where the second indication information is used to indicate to the user equipment that the equipment that sends data to the base station according to the first control information in the shared spectrum is not the user equipment .

In a first possible implementation manner, after the user equipment sends the first indication information to the base station, before the user equipment receives the second indication information sent by the base station according to the first indication information, the The user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum.

In a second possible implementation manner, the user equipment receives second control information from the base station; after the user equipment sends the first indication information to the base station, the user equipment receives Before the second indication information sent by the first indication information, the user equipment sends the second data to the base station according to the second control information.

With reference to the first or second possible implementation manner, in a third possible implementation manner, the second indication information is further used to instruct the user equipment to stop sending the first signal or the second data .

With reference to the fifth aspect, any one of the first to third possible implementation manners, in a fourth possible implementation manner, the first indication information or the second indication information is determined by a preset sequence or by Physical control channel bearer.

With reference to the fifth aspect and any one of the possible implementation manners from the first to the fourth, in a fifth possible implementation manner, after the user equipment receives the first control information from the base station, and after the user equipment Before the device sends the first indication information to the base station, the user equipment detects the shared frequency spectrum to generate the first indication information.

With reference to the fifth aspect, any one of the possible implementation manners from the first to the fifth, in the sixth possible implementation manner, the shared frequency spectrum is a wireless communication system operated by a different wireless communication operator or a different wireless Spectrum that can be shared by communication systems.

In a sixth aspect, there is provided user equipment, including: a receiving unit, configured to receive first control information from a base station; a sending unit, configured to send first indication information to the base station, where the first indication information is used to indicate the The user equipment can occupy the shared frequency spectrum; the receiving unit is further configured to receive second indication information sent by the base station according to the first indication information, and the second indication information is used to indicate that the user equipment, in the The shared frequency spectrum is sent to the base station according to the first control information The data device is not the user device.

In a first possible implementation manner, after the sending unit sends the first indication information to the base station, and before the receiving unit receives the second indication information sent by the base station according to the first indication information, the The sending unit sends a first signal, where the first signal is used to occupy the shared frequency spectrum.

In a second possible implementation manner, the receiving unit receives second control information from the base station; after the sending unit sends the first indication information to the base station, the receiving unit receives Before the second indication information sent by the first indication information, the sending unit sends the second data to the base station according to the second control information.

With reference to the first or second possible implementation manner, in a third possible implementation manner, the second indication information is further used to instruct the sending unit to stop sending the first signal or the second data .

With reference to the sixth aspect, any one of the first to third possible implementation manners, in a fourth possible implementation manner, the first indication information or the second indication information is determined by a preset sequence or by Physical control channel bearer.

With reference to the sixth aspect and any one of the possible implementation manners of the first to the fourth, in a fifth possible implementation manner, the user equipment further includes a processing unit,

After the receiving unit receives the first control information from the base station and before the sending unit sends the first indication information to the base station, the processing unit detects the shared frequency spectrum to generate the first indication information .

With reference to the sixth aspect, any one of the possible implementation manners from the first to the fifth, in the sixth possible implementation manner, the shared frequency spectrum is a wireless communication system operated by a different wireless communication operator or a different wireless Spectrum that can be shared by communication systems.

Through the above solution, the base station receives first indication information from the user equipment, the first indication information is used to indicate that the user equipment can occupy the shared frequency spectrum, and the base station sends to the user equipment according to the first indication information Second indication information, where the second indication information is used to indicate to the user equipment that the equipment that sends data to the base station in the shared spectrum according to the first control information is the user equipment, thus, the user equipment The base station can be notified whether the shared spectrum is occupied, and the base station can also notify the user equipment to complete the transmission of uplink data according to the first control information, thereby preventing the base station from being unable to know whether the user equipment occupies the shared spectrum and improving the utilization efficiency of the shared spectrum Rate.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

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

Fig. 2 is a method for receiving data on a shared frequency spectrum according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a base station according to an embodiment of the present invention.

Fig. 4 is a method for sending data on a shared frequency spectrum according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a user equipment according to an embodiment of the present invention.

Fig. 6 is a data sending method on a shared frequency spectrum according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a user equipment according to an embodiment of the present invention.

Fig. 8 is a flowchart of a method for sending and receiving data on a shared frequency spectrum according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of a data sending and receiving method on a shared frequency spectrum according to an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

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

The base station provided in the embodiment of the present invention may be a base station (Node B, NB) under UMTS, an evolved base station (eNodeB, eNB) under LTE, or a base station or controller under the fifth generation mobile communication system.

The user equipment (User Equipment, UE) provided by the embodiment of the present invention may be, but not limited to, a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset) and a portable device ( portable equipment) etc.

The shared spectrum in this embodiment of the present invention is an unlicensed spectrum. Optionally, the sharing of the embodiment of the present invention Spectrum is the licensed spectrum purchased by operators or certain institutions, and the licensed spectrum is shared and used.

The embodiment of the present invention is used for uplink data transmission, the base station sends control information to user equipment, the user equipment sends data according to the control information, and the base station receives data according to the control information.

The embodiments of the present invention are based on the above system architecture, and it should be noted that, in the case of no conflict, various embodiments and features in the embodiments can be combined with each other.

FIG. 2 is a method for receiving data on a shared frequency spectrum provided by an embodiment of the present invention, the steps of which include:

Step 21, the base station sends first control information to the user equipment. The first control information is scheduling instruction information for sending data by the user equipment. Optionally, the first control information includes data transmission format, modulation and coding scheme, precoding information, resource allocation information of resources occupied by data transmission, and the like. In an optional embodiment, the first control information further includes effective time indication information, and the effective time indication information is used to indicate the effective time range of the first control information, that is, the first control information is Pre-scheduling control information.

Step 22, the base station receives first indication information from the user equipment. Wherein, the first indication information is used to indicate that the user equipment can occupy the shared frequency spectrum. The user equipment judges whether the shared spectrum can be occupied according to the usage rule of the shared spectrum. For example, the user equipment monitors the shared frequency spectrum according to the LBT rule, and determines whether the user can occupy the shared frequency spectrum according to the LBT rule. The specific content of the LBT rule and the specific steps of judging by using the LBT rule are not limited. If the user equipment determines that the shared spectrum can be occupied, then the user equipment sends first indication information to indicate to the base station that the user equipment can occupy the shared spectrum.

Step 23, the base station sends second indication information to the user equipment according to the first indication information. Wherein, the second indication information is used to indicate the user equipment, and the equipment that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment. After the base station receives the first indication information sent by the user equipment indicating that the user equipment can occupy the shared spectrum, the base station can determine that the user equipment has occupied the shared spectrum according to the first indication information, and send the second indication information to indicate that the user equipment can occupy the shared spectrum. The device that the user equipment sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment.

Step 24, the base station receives first data from the user equipment according to the second indication information and the first control information.

Through the above solution, the base station pre-configures the first control information for sending data for the user equipment. The base station receives first indication information from the user equipment, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum, and the base station sends the user equipment information to the user according to the first indication information The device sends second indication information, where the second indication information is used to indicate to the user equipment that the device that sends data to the base station in the shared frequency spectrum according to the first control information is the user equipment, thus, The user equipment can notify the base station whether it can occupy the shared frequency spectrum, and the base station can also notify the user equipment to complete the transmission of uplink data according to the first control information, thereby preventing the base station from being unable to know whether the user equipment occupies the shared frequency spectrum and unable to control the user equipment Whether the shared frequency spectrum is occupied or not is sent according to the instruction of the first control information, which improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, when the base station receives the first indication information from the user equipment, the base station also receives fourth indication information from other user equipment, and the fourth indication information is used to indicate the Other user equipment can occupy the shared frequency spectrum; after the base station also receives fourth indication information from other user equipment, the base station sends fifth indication information to the other user equipment, where the fifth indication information is used to indicate the For other user equipment, the device that sends data to the base station according to the first control information in the shared frequency spectrum is not the other user equipment. For a situation with more than two user equipments, if the user equipment and other user equipments both monitor the shared frequency spectrum and detect that the channel of the shared frequency spectrum is idle, the user equipment will send first indication information to the base station to indicate the The user equipment can occupy the shared frequency spectrum, and the other user equipment will also send fourth indication information to the base station to indicate that the other user equipment can occupy the shared frequency spectrum. At this time, the base station will send the second indication information to the user equipment, and the base station will also send fifth indication information to the other user equipment, the second indication information and the fifth indication information are used to notify the user equipment Whether the device can send data according to the first control information, and at the same time, the base station will also receive the uplink data of the user equipment according to the second indication information and the fifth indication information, but not receive the data of the other user equipment . Of course, at this time, because the fifth indication information received by the other user equipment is used to indicate that the equipment that the other user equipment sends data to the base station according to the first control information in the shared frequency spectrum is not the other user equipment. User equipment, therefore, the other user equipment will not send data to the base station according to the instruction of the first control information. Through this embodiment, the base station can schedule multiple user equipments to indicate which user equipment can occupy the shared frequency spectrum and send uplink data according to the indication of the first control information, which solves the shared spectrum indicated by the first control information of multiple user equipments. In the case of overlapping resources, multiple users simultaneously send data on the shared spectrum to cause conflicts, which improves the utilization efficiency of the shared spectrum.

In an optional embodiment, before the base station receives the first indication information from the user equipment, the base station sends third indication information to the user equipment, where the third indication information is used to indicate that the first - The time frame within which the control information is valid. Optionally, when the first control information is valid The interval is X ms, where X is a value greater than 0, for example, the valid time of the first control information is 10 ms. Utilizing the third indication information to indicate the effective range of the first control information can enable the base station to adjust the content of the first control information in time according to channel quality and service requirements, so as to improve the flexibility of using the shared spectrum.

In an optional embodiment, the base station sending the second indication information to the user equipment according to the first indication information is specifically that the base station sends the second indication information to the user equipment according to the first indication information at time n. Two indication information, the second indication information is used to indicate the user equipment, the device that sends data to the base station according to the first control information in the shared spectrum is the user equipment, specifically the second indication The information is used to indicate to the user equipment that from time n+t, the device that sends data to the base station in the shared frequency spectrum according to the first control information is the user equipment, and the base station transmits data to the base station according to the second indication The information and the first control information receiving the first data from the user equipment is specifically that the base station receives the user equipment from the user equipment according to the second indication information and the first control information. The first data is sent at time +t, where t is a preset time length.

In an optional embodiment, the base station determines a stop moment when the user equipment sends the first data, where the stop moment is n+t+v, and v is a preset time length, the The second indication information carries the value of v, or the stop time is determined by the base station according to the sixth indication information, where the sixth indication information is sent by the user equipment to the base station to indicate the The user equipment finishes sending the first data.

In an optional embodiment, the base station determines the stop moment when the user equipment sends the first data, where the stop moment is n+w, and the w is a preset time value, the first The second indication information carries the value of w, or the stop time is determined by the base station according to sixth indication information, where the sixth indication information is sent by the user equipment to the base station to instruct the user equipment The sending of the first data is completed.

In an optional embodiment, if the valid range of the first control information is during the period from when the user equipment starts sending the first data at the n+t time to when the n+t+v stops sending, that is The first control information becomes invalid at time n+t+u (u<v), then the user equipment uses the updated first control information between time n+t+u and time n+t+v The first data is sent, and at the same time, the base station receives the first data according to the updated first control information. In an optional embodiment, the base station sends second control information to the user equipment, where the second control information includes data transmission format, modulation and coding scheme, precoding information, resource allocation of resources occupied by data transmission information, etc.; at the base station from After the user equipment receives the first indication information, before receiving the first data sent by the user equipment from the n+t time, the base station receives from the user equipment according to the second control information second data. After the base station receives the first indication information from the user equipment, before receiving the first data sent by the user equipment from the n+t time, the user equipment cannot according to the first control information to send uplink data to the base station, if the first signal sent by the user equipment for occupying the shared spectrum does not carry valid data information during this period of time, the shared spectrum is wasted. Therefore, through the base station sending the second control information to the user equipment, after the base station receives the first indication information from the user equipment and before receiving the first data sent by the user equipment from the n+t moment, The base station receives the second data from the user equipment according to the second control information, thus, after the base station receives the first indication information from the user equipment, after receiving the user equipment from the user equipment The period of time before the first data to be sent at time n+t improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, the base station sends second control information for different user equipments respectively, and resources occupied by data transmission indicated by the second control information are orthogonal to each other.

In an optional embodiment, the second indication information is further used to instruct the base station to stop receiving the second data from the user equipment according to the second control information. Optionally, when the base station sends the second indication information to the user equipment, the base station stops receiving the second data, so as to be ready to receive the first data according to the first control information. Optionally, the second indication information includes time indication information, and the time indication information is used to indicate to stop receiving the data sent by the user equipment according to the second control information from the time n+t.

In an optional embodiment, the first indication information or the second indication information or the fourth indication information or the fifth indication information is carried by a preset sequence or carried by a physical control channel. Optionally, the preset sequence is a constant envelope zero autocorrelation (Constant Amplitude Zero Auto Correlation, CAZAC) sequence. The base station pre-configures the CAZAC sequence for carrying the first indication information and the CAZAC sequence for carrying the fourth indication information respectively for the user equipment, and configures the CAZAC sequence and the CAZAC sequence for carrying the second indication information respectively to the user equipment. A CAZAC sequence used to bear the fifth indication information. Optionally, the preset sequence carrying the first indication information or the second indication information or the fourth indication information or the fifth indication information occupies one OFDM symbol in time. Optionally, the first indication information or the fourth indication information is carried by a physical uplink control channel (PUCCH). Optionally, the second indication information or the fifth indication information is carried by a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH). Optionally, the second The indication information and the fifth indication information are carried in the same (enhanced) physical downlink control channel. For example, the base station sends the second indication information sent for the user equipment and the fifth indication information sent for the other user equipments through the PDCCH or EPDCCH in the common search space of the (enhanced) physical downlink control channel. The user equipment and the other user equipment respectively read the second indication information or the fifth indication information from the PDCCH or EPDCCH. For different user equipments, the position where it reads the second indication information or the fifth indication information in the PDCCH or EPDCCH is preset.

In an optional embodiment, the first indication information or the second indication information or the fourth indication information or the fifth indication information may be sent through a shared frequency spectrum.

In an optional embodiment, the shared frequency spectrum is a frequency spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. Optionally, the shared spectrum is an unlicensed spectrum.

FIG. 3 is a base station provided by an embodiment of the present invention, which is used to execute the method described in the embodiment in FIG. 2 . The base station includes a sending unit 301 and a receiving unit 302 .

The sending unit 301 is configured to send the first control information to the user equipment. The first control information is scheduling instruction information for sending data by the user equipment. Optionally, the first control information includes data transmission format, modulation and coding scheme, precoding information, resource allocation information of resources occupied by data transmission, and the like. The first control information is consistent with the embodiment in FIG. 2 and will not be described again.

The receiving unit 302 is configured to receive first indication information from the user equipment. Wherein, the first indication information is used to indicate that the user equipment can occupy the shared frequency spectrum. The user equipment judges whether the shared spectrum can be occupied according to the usage rule of the shared spectrum. For example, the user equipment monitors the shared frequency spectrum according to the LBT rule, and determines whether the user can occupy the shared frequency spectrum according to the LBT rule. The specific content of the LBT rule and the specific steps of judging by using the LBT rule are not limited. If the user equipment determines that the shared spectrum can be occupied, then the user equipment sends first indication information to indicate to the base station that the user equipment can occupy the shared spectrum.

The sending unit 301 is further configured to send second indication information to the user equipment according to the first indication information. Wherein, the second indication information is used to indicate the user equipment, and the equipment that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment. After the base station receives the first indication information sent by the user equipment indicating that the user equipment can occupy the shared spectrum, the base station can determine that the user equipment has occupied the shared spectrum according to the first indication information, and send the second indication information to indicate that the user equipment can occupy the shared spectrum. The user equipment in the shared frequency spectrum according to the first The device that sends control information to the base station is the user equipment.

The receiving unit 302 is further configured to receive first data from the user equipment according to the second indication information and the first control information.

Through the above solution, the base station pre-configures the first control information for sending data for the user equipment. The base station receives first indication information from the user equipment, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum, and the base station sends second indication information to the user equipment according to the first indication information , the second indication information is used to indicate to the user equipment that the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, so that the user equipment can notify the base station whether The shared spectrum can be occupied, and the base station can also notify the user equipment to complete the transmission of uplink data according to the first control information, thereby preventing the base station from being unable to know whether the user equipment occupies the shared spectrum and unable to control whether the user equipment occupies the shared spectrum according to the first control information. The data is sent according to the instruction of the control information, which improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, when the receiving unit 302 receives the first indication information from the user equipment, the receiving unit 302 also receives fourth indication information from other user equipment, and the fourth indication information uses To indicate that the other user equipment can occupy the shared frequency spectrum; after the receiving unit 302 also receives fourth indication information from other user equipment, the sending unit 301 sends fifth indication information to the other user equipment, the first The fifth indication information is used to indicate to the other user equipment that the equipment that sends data to the base station according to the first control information in the shared frequency spectrum is not the other user equipment. For a situation with more than two user equipments, if the user equipment and other user equipments monitor the shared frequency spectrum and detect that the channel is idle, the user equipment will send first indication information to the base station to indicate that the user equipment Being able to occupy the shared frequency spectrum, the other user equipment will also send fourth indication information to the base station to indicate that the other user equipment can occupy the shared frequency spectrum. At this time, the base station will send the second indication information to the user equipment, and the base station will also send fifth indication information to the other user equipment, the second indication information and the fifth indication information are used to notify the user equipment Whether the device can send data according to the first control information, and at the same time, the base station will also receive the uplink data of the user equipment according to the second indication information and the fifth indication information, but not receive the data of the other user equipment . Of course, at this time, since the fifth indication information received by the other user equipment is used to indicate that the equipment that the other user equipment sends data to the base station according to the first control information in the shared frequency spectrum is not the other user equipment User equipment, therefore, the other user equipment will not send data to the base station. Through this embodiment, the base station can schedule multiple user equipments to indicate which user equipment can occupy the shared frequency spectrum Sending uplink data solves the conflict problem caused by multiple users sending data on the shared spectrum at the same time when the resources of the shared spectrum indicated by the first control information of multiple user equipments overlap, and improves the utilization efficiency of the shared spectrum .

In an optional embodiment, before the receiving unit 302 receives the first indication information from the user equipment, the sending unit 301 sends third indication information to the user equipment, and the third indication information is used for Indicates the valid time range of the first control information. Optionally, the valid time of the first control information is X ms, where X is a value greater than 0, for example, the valid time of the first control information is 10 ms. Utilizing the third indication information to indicate the effective range of the first control information can enable the base station to adjust the content of the first control information in time according to channel quality and service requirements, so as to improve the flexibility of using the shared spectrum.

In an optional embodiment, the sending unit 301 sends the second indication information to the user equipment according to the first indication information, specifically, the sending unit 301 sends the second indication information to the user equipment according to the first indication information at time n. The user equipment sends second indication information, where the second indication information is used to indicate to the user equipment that the equipment that sends data to the base station in the shared spectrum according to the first control information is the user equipment, specifically the The second indication information is used to instruct the user equipment to send data to the base station in the shared frequency spectrum according to the first control information from time n+t to the user equipment, and the receiving unit 302 Receiving the first data from the user equipment according to the second indication information and the first control information is specifically that the receiving unit 302 receives from the user equipment according to the second indication information and the first control information The user equipment starts to send the first data from the n+t moment, where the t is a preset time length.

In an optional embodiment, the base station further includes a processing unit configured to determine a stop moment for the user equipment to send the first data, where the stop moment is n+t+v, and v is The preset time length, the value of v carried in the second indication information, or the stop moment is determined by the processing unit according to the sixth indication information, where the sixth indication information is sent by the user equipment Instructing the base station to indicate that the user equipment has finished sending the first data. Alternatively, the stop moment is n+t+w, the w is a preset time value, the value of w is carried in the second indication information, or the stop moment is determined by the processing unit according to the sixth The indication information is determined, wherein the sixth indication information is sent by the user equipment to the base station to indicate that the user equipment has finished sending the first data.

In an optional embodiment, if the valid range of the first control information is during the period from when the user equipment starts sending the first data at the n+t time to when the n+t+v stops sending, that is said The first control information becomes invalid at time n+t+u (u<v), then the user equipment uses the updated first control information to send the first control information between time n+t+u and time n+t+v. a data.

In an optional embodiment, the sending unit 301 is further configured to send second control information to the user equipment, where the second control information includes data transmission format, modulation and coding mode, precoding information, data transmission Resource allocation information of occupied resources, etc.; after the receiving unit 302 receives the first indication information from the user equipment, before receiving the first data sent by the user equipment from the n+t time, The receiving unit 302 receives second data from the user equipment according to the second control information. After the base station receives the first indication information from the user equipment, before receiving the first data sent by the user equipment from the n+t time, the user equipment cannot according to the first control information to send uplink data to the base station, the shared frequency spectrum within this period of time is wasted, therefore, the base station sends the second control information to the user equipment, and the base station receives the first indication from the user equipment After information, before receiving the first data sent by the user equipment from the n+t time, the base station receives second data from the user equipment according to the second control information, thereby using After the base station receives the first indication information from the user equipment and before receiving the first data sent by the user equipment from the n+t moment, the utilization efficiency of the shared spectrum is improved .

In an optional embodiment, the base station sends second control information for different user equipments respectively, and resources occupied by data transmission indicated by the second control information are orthogonal to each other.

In an optional embodiment, the second indication information is further used to instruct the receiving unit 302 to stop receiving the second data from the user equipment according to the second control information. Optionally, when the base station sends the second indication information to the user equipment, the base station stops receiving the second data, so as to be ready to receive the first data according to the first control information. Optionally, the second indication information includes a time indication information, and the time indication information is used to indicate to stop receiving the second information sent by the user equipment according to the second control information from the n+t moment. data.

In an optional embodiment, the first indication information or the second indication information or the fourth indication information or the fifth indication information is carried by a preset sequence or carried by a physical control channel. Optionally, the preset sequence is CAZAC (Constant Amplitude Zero Auto Correlation), constant envelope zero autocorrelation sequence. The base station pre-configures the CAZAC sequence for carrying the first indication information and the CAZAC sequence for carrying the fourth indication information respectively for the user equipment, and configures the CAZAC sequence and the CAZAC sequence for carrying the second indication information respectively to the user equipment. A CAZAC sequence used to bear the fifth indication information. Optionally, the carrying of the first indication information or the second indication information or the second indication information The preset sequence of the four indication information or the fifth indication information occupies one OFDM symbol in time. Optionally, the first indication information or the fourth indication information is carried by a physical uplink control channel (PUCCH). Optionally, the second indication information or the fifth indication information is carried by a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH). Optionally, the second indication information and the fifth indication information are carried in the same (enhanced) physical downlink control channel. For example, the base station sends the second indication information sent for the user equipment and the fifth indication information sent for the other user equipments through the PDCCH or EPDCCH in the common search space of the (enhanced) physical downlink control channel. The user equipment and the other user equipment respectively read the second indication information or the fifth indication information from the PDCCH or EPDCCH. For different user equipments, the position where it reads the second indication information or the fifth indication information in the PDCCH or EPDCCH is preset.

In an optional embodiment, the first indication information or the second indication information or the fourth indication information or the fifth indication information may be sent through a shared frequency spectrum.

In an optional embodiment, the shared frequency spectrum is a frequency spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. Optionally, the shared spectrum is an unlicensed spectrum.

In an optional embodiment, the base station provided in the embodiment of FIG. 3 may include a processor, and the processor may specifically be: a baseband processor, a digital signal processor (Digital Signal Processor, DSP), a field programmable gate array ( Field Programmable Gata Array, FPGA) or Central Processing Unit (Central Processing Unit, CPU). The sending unit 301 may be a transmitter (transmitter), and the receiving unit 302 may be a receiver (receiver). The receiving unit 302 and the sending unit 301 may also be implemented by a transceiver (transceiver). The receiver, transmitter and transceiver may be radio frequency circuitry or a combination comprising the processor and radio frequency circuitry. Optionally, the base station provided in the embodiment of FIG. 3 includes a processor, a transmitter, and a receiver, the transmitter is configured to send the first control information to the user equipment; the receiver is configured to receive from the user equipment First indication information, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum; the transmitter is further configured to send second indication information to the user equipment according to the first indication information, so that The second indication information is used to indicate to the user equipment that the device that sends data to the base station according to the first control information in the shared spectrum is the user equipment; the receiver is also used to send data to the base station according to the The second indication information and the first control information receive first data from the user equipment.

FIG. 4 is a method for sending data on a shared frequency spectrum provided by an embodiment of the present invention, the steps of which include:

Step 41, the user equipment receives first control information from the base station. The first control information is consistent with the first control information in the embodiment in FIG. 2 , and will not be described again.

Step 42, the user equipment sends first indication information to the base station. Wherein, the first indication information is used to indicate that the user equipment can occupy the shared frequency spectrum. The user equipment judges whether the shared spectrum can be occupied according to the usage rule of the shared spectrum. For example, the user equipment monitors the shared spectrum according to the LBT rule, and judges whether the user can occupy the shared spectrum according to the LBT rule. The specific content of the LBT rule and the specific steps of using the LBT rule are not limited. If the user equipment determines that the shared spectrum can be occupied, then the user equipment sends first indication information to indicate to the base station that the user equipment can occupy the shared spectrum.

Step 43, the user equipment receives second indication information sent by the base station according to the first indication information. Wherein, the second indication information is used to indicate the user equipment, and the equipment that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment. After the base station receives the first indication information sent by the user equipment indicating that the user equipment can occupy the shared spectrum, the base station can determine that the user equipment has occupied the shared spectrum according to the first indication information, and send the second indication information to indicate that the user equipment can occupy the shared spectrum. The device that the user equipment sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment.

Step 44, the user equipment sends the first data to the base station according to the second indication information and the first control information

Through the above solution, the user equipment receives preconfigured first control information for sending data from the base station. The user equipment sends first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum, and the user equipment receives a second indication sent by the base station according to the first indication information information, the second indication information is used to indicate to the user equipment that the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, so that the user equipment can notify the base station Whether the shared spectrum can be occupied, and the base station can also notify the user equipment to complete the transmission of uplink data according to the first control information, thereby preventing the base station from being unable to know whether the user equipment occupies the shared spectrum, and unable to control whether the user equipment occupies the shared spectrum according to The instruction of the first control information to send data improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, before the user equipment receives the first control information from the base station, the user equipment receives third indication information from the base station, and the third indication information is used to indicate the A valid time range for the first control information. Optionally, the valid time of the first control information is X ms, where X is a value greater than 0, for example, the valid time of the first control information is 10 ms. Utilizing the third indication information to indicate the effective range of the first control information can enable the base station to adjust the content of the first control information in time according to channel quality and service requirements, so as to improve the flexibility of using the shared spectrum.

In an optional embodiment, the receiving by the user equipment of the second indication information sent by the base station according to the first indication information is specifically that the user equipment receives the second indication information sent by the base station at time n according to the first indication information. second indication information, where the second indication information is used to indicate to the user equipment that the equipment that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, specifically the first The second indication information is used to instruct the user equipment to send data to the base station in the shared frequency spectrum according to the first control information from time n+t to the user equipment, and the user equipment according to the Sending the first data to the base station with the second indication information and the first control information is specifically that the user equipment sends the first data to the base station according to the second indication information and the first control information from time n+t. The first data, wherein, the t is a preset time length.

In an optional embodiment, the user equipment stops sending the first data at a stop moment, where the stop moment is n+t+v, and v is a preset time length, the second The indication information carries the value of v, or the stop moment is determined by the base station according to sixth indication information, where the sixth indication information is sent by the user equipment to the base station to instruct the user equipment to send The first data is completed.

In an optional embodiment, if the valid range of the first control information is during the period from when the user equipment starts sending the first data at the n+t time to when the n+t+v stops sending, that is The first control information becomes invalid at time n+t+u (u<v), then the user equipment uses the updated first control information between time n+t+u and time n+t+v Send the first data.

In an optional embodiment, after the user equipment sends the first indication information to the base station, and after the user equipment sends the second indication information to the base station according to the second indication information and the first control information Before a piece of data, the user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. In an optional embodiment, after the user equipment sends the first indication information to the base station and before the n+t time, the user equipment sends a first signal, and the first signal is used for Occupying the shared spectrum. According to the LBT rule, if the user equipment does not send any signal on the shared spectrum, other user equipment judges that the shared spectrum is free according to the LBT rule. The other user equipments can occupy the shared frequency spectrum to send data. Sending the first signal by the user equipment may keep occupying the shared frequency spectrum, so as to prevent other user equipment from occupying the shared frequency spectrum and causing the user equipment to lose a chance to occupy the shared frequency spectrum.

In an optional embodiment, the second indication information is further used to instruct the user equipment to stop sending the first signal at the time n+t. Thus, the interference of the first signal to the first data is avoided.

In an optional embodiment, the user equipment receives second control information from the base station; after the user equipment sends the first indication information to the base station and before the n+t time, the user equipment Sending second data to the base station according to the second control information. After the user equipment sends the first indication information to the base station, but before the n+t time, the user equipment cannot send uplink data to the base station according to the first control information, then within this period if the The first signal sent by the user equipment for occupying the shared spectrum does not carry valid data information, and the shared spectrum is wasted. Therefore, the user equipment receives second control information from the base station, and the user equipment After the device sends the first indication information to the base station, before the n+t time, the user equipment sends the second data to the base station according to the second control information, thereby utilizing the After the first indication information is sent to the base station, the time before the n+t time improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, the second indication information is further used to instruct the user equipment to stop sending the second data to the base station according to the second control information at the time n+t. Thus, the second data is prevented from interfering with the first data of other users.

In an optional embodiment, the base station sends second control information for different user equipments respectively, and resources occupied by data transmission indicated by the second control information are orthogonal to each other. Interference between the different users when sending data according to the second control information at the same time is avoided. In an optional embodiment, the first indication information or the second indication information is carried by a preset sequence or by a physical control channel. Optional, . The preset sequence is a CAZAC sequence. The base station preconfigures the CAZAC sequence used to bear the first indication information and the CAZAC sequence used to bear the second indication information for the user equipment respectively. Optionally, the preset sequence carrying the first indication information or the second indication information occupies one OFDM symbol in time. Optionally, the first indication information is carried by a physical uplink control channel (PUCCH). Optionally, the second indication information is carried by a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH).

In an optional embodiment, after the user equipment receives the first control information from the base station and before the user equipment sends the first indication information to the base station, the user equipment The shared frequency spectrum is detected to generate the first indication information.

In an optional embodiment, the shared frequency spectrum is a frequency spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. Optionally, the shared spectrum is an unlicensed spectrum.

FIG. 5 is a user equipment provided by an embodiment of the present invention, configured to execute the method provided by the embodiment of FIG. 4 , and the user equipment includes a receiving unit 501 and a sending unit 502 .

The receiving unit 501 is configured to receive first control information from a base station. The first control information is consistent with the first control information in the embodiment in FIG. 4 , and details are not repeated here.

The sending unit 502 is configured to send first indication information to the base station. Wherein, the first indication information is used to indicate that the user equipment can occupy the shared frequency spectrum. The user equipment judges whether the shared spectrum can be occupied according to the usage rule of the shared spectrum. For example, the user equipment monitors the shared spectrum according to the LBT rule, and judges whether the user can occupy the shared spectrum according to the LBT rule. The specific content of the LBT rule and the specific steps of using the LBT rule are not limited. If the user equipment determines that the shared spectrum can be occupied, then the user equipment sends first indication information to indicate to the base station that the user equipment can occupy the shared spectrum.

The receiving unit 501 is further configured to receive second indication information sent by the base station according to the first indication information. Wherein, the second indication information is used to indicate the user equipment, and the equipment that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment. After the base station receives the first indication information sent by the user equipment indicating that the user equipment can occupy the shared spectrum, the base station can determine that the user equipment has occupied the shared spectrum according to the first indication information, and send the second indication information to indicate that the user equipment can occupy the shared spectrum. The device that the user equipment sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment.

The sending unit 502 is configured to send first data to the base station according to the second indication information and the first control information.

Through the above solution, the user equipment receives preconfigured first control information for sending data from the base station. The user equipment sends first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum, and the user equipment receives a second indication sent by the base station according to the first indication information information, the second indication information is used to indicate to the user equipment that the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, so that the user equipment can notify the base station Whether the shared frequency spectrum is occupied, the base station can also notify the user equipment to complete the sending of uplink data according to the first control information, thereby avoiding the The station cannot know whether the user equipment occupies the shared spectrum, and cannot control whether the user equipment occupies the shared spectrum to send data according to the instruction of the first control information, which improves the utilization efficiency of the shared spectrum.

In an optional embodiment, before the receiving unit 501 receives the first control information from the base station, the receiving unit 501 receives third indication information from the base station, where the third indication information is used to indicate that the first - The time frame within which the control information is valid. Optionally, the valid time of the first control information is X ms, where X is a value greater than 0, for example, the valid time of the first control information is 10 ms. Utilizing the third indication information to indicate the effective range of the first control information can enable the base station to adjust the content of the first control information in time according to channel quality and service requirements, so as to improve the flexibility of using the shared spectrum.

In an optional embodiment, the receiving unit 501 receiving the second indication information sent by the base station according to the first indication information is specifically that the receiving unit 501 receives the base station at time n according to the first indication information Second indication information for information transmission, where the second indication information is used to indicate to the user equipment that the equipment that sends data to the base station in the shared spectrum according to the first control information is the user equipment, specifically the The second indication information is used to instruct the user equipment to send data to the base station in the shared frequency spectrum according to the first control information from time n+t to the user equipment, and the sending unit 502 Sending the first data to the base station according to the second indication information and the first control information is specifically that the sending unit 502 sends the first data to the base station according to the second indication information and the first control information from time n+t The base station sends the first data, where the t is a preset time length.

In an optional embodiment, the sending unit stops sending the first data at a stop moment, where the stop moment is n+t+v, and v is a preset time length, the second The indication information carries the value of v, or the stop moment is determined by the base station according to sixth indication information, where the sixth indication information is sent by the user equipment to the base station to instruct the user equipment to send The first data is completed.

In an optional embodiment, if the valid range of the first control information is during the period from when the user equipment starts sending the first data at the n+t time to when the n+t+v stops sending, that is The first control information becomes invalid at time n+t+u (u<v), then the user equipment uses the updated first control information between time n+t+u and time n+t+v Send the first data.

In an optional embodiment, after the sending unit 502 sends the first indication information to the base station, and after the sending unit 502 sends the information to the base station according to the second indication information and the first control information Before sending the first data, the sending unit 502 sends a first signal, and the first signal The number is used to occupy the shared spectrum. In an optional embodiment, after the user equipment sends the first indication information to the base station, the sending unit 502 sends to the base station according to the second indication information and the first control information Before the first data, the user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. According to the LBT rule, if the user equipment does not send any signal on the shared frequency spectrum, other user equipment judges that the shared frequency spectrum is free according to the LBT rule, and the other user equipment can occupy the shared frequency spectrum to send data. Sending the first signal by the user equipment may keep occupying the shared frequency spectrum, so as to prevent other user equipment from occupying the shared frequency spectrum and causing the user equipment to lose a chance to occupy the shared frequency spectrum.

In an optional embodiment, after the sending unit 502 sends the first indication information to the base station and before the n+t time, the sending unit 502 sends a first signal, and the first signal Used to occupy the shared frequency spectrum. In an optional embodiment, after the user equipment sends the first indication information to the base station and before the n+t time, the user equipment sends a first signal, and the first signal is used for Occupying the shared spectrum. Due to the LBT rule, if the shared frequency spectrum is occupied without sending any signal, once other user equipment detects that there is no signal on the shared frequency spectrum, it is idle, and then the other user equipment will occupy this frequency spectrum. Therefore, the The user equipment may occupy the shared frequency spectrum for sending the first signal.

In an optional embodiment, the second indication information is further used to instruct the sending unit 502 to stop sending the first signal at the time n+t. Thus, the interference of the first signal to the first data is avoided.

In an optional embodiment, the receiving unit 501 receives second control information from the base station; after the sending unit 502 sends the first indication information to the base station and before the n+t time, the The sending unit 502 sends second data to the base station according to the second control information. After the user equipment sends the first indication information to the base station, but before the n+t time, the user equipment cannot send uplink data to the base station according to the first control information, then within this period if the The first signal sent by the user equipment for occupying the shared spectrum does not carry valid data information, and the shared spectrum is wasted. Therefore, the user equipment receives second control information from the base station, and the user equipment After the device sends the first indication information to the base station, before the n+t time, the user equipment sends the second data to the base station according to the second control information, thereby utilizing the After the first indication information is sent to the base station, the time before the n+t time improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, the second indication information is also used to indicate that the sending unit 502 Stop sending the second data to the base station according to the second control information at the time n+t. Thus, the interference of the second data on the first data is avoided.

In an optional embodiment, the base station sends second control information for different user equipments respectively, and resources occupied by data transmission indicated by the second control information are orthogonal to each other. Interference between the different users when sending data according to the second control information at the same time is avoided.

In an optional embodiment, the first indication information or the second indication information is carried by a preset sequence or by a physical control channel. Optionally, the preset sequence is a CAZAC sequence. The base station preconfigures the CAZAC sequence used to bear the first indication information and the CAZAC sequence used to bear the second indication information for the user equipment respectively. Optionally, the preset sequence carrying the first indication information or the second indication information occupies one OFDM symbol in time. Optionally, the first indication information is carried by a physical uplink control channel (PUCCH). Optionally, the second indication information is carried by a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH).

In an optional embodiment, the user equipment further includes a processing unit 503 (not shown in FIG. 5 ), after the receiving unit 501 receives the first control information from the base station, and after the sending unit 502 sends Before the base station sends the first indication information, the processing unit is configured to detect the shared spectrum to generate the first indication information.

In an optional embodiment, the shared frequency spectrum is a frequency spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. Optionally, the shared spectrum is an unlicensed spectrum.

In an optional embodiment, the processing unit 503 of the user equipment provided in the embodiment of FIG. 5 may include a processor, and the processor may specifically be: a baseband processor, a digital signal processor (Digital Signal Processor, DSP) , Field Programmable Gate Array (Field Programmable Gata Array, FPGA) or Central Processing Unit (Central Processing Unit, CPU). The sending unit 502 may be a transmitter (transmitter), and the receiving unit 501 may be a receiver (receiver). The receiving unit 501 and the sending unit 502 may also be implemented by a transceiver (transceiver). The receiver, transmitter and transceiver may be radio frequency circuitry or a combination comprising the processor and radio frequency circuitry. Optionally, the base station provided in the embodiment of FIG. 5 includes a processor, a transmitter, and a receiver, the receiver is configured to receive first control information from the base station; the transmitter is configured to send the first indication information to the base station , the first indication information is used to indicate that the user equipment can occupy the shared spectrum; the receiver is also used to receive the base station according to the first indication Second indication information for information transmission, where the second indication information is used to indicate to the user equipment that the equipment that sends data to the base station in the shared spectrum according to the first control information is the user equipment; a transmitter, configured to send first data to the base station according to the second indication information and the first control information.

FIG. 6 is a method for sending data on a shared frequency spectrum provided by an embodiment of the present invention, the steps of which include:

Step 61, the user equipment receives first control information from the base station. The first control information is consistent with the first control information in the embodiment in FIG. 2 , and will not be described again.

Step 62, the user equipment sends first indication information to the base station. Wherein, the first indication information is used to indicate that the user equipment can occupy the shared frequency spectrum. The user equipment judges whether the shared spectrum can be occupied according to the usage rule of the shared spectrum. For example, the user equipment monitors the shared spectrum according to the LBT rule, such as judging whether the user can occupy the shared spectrum according to the LBT rule, wherein the specific content of the LBT rule and the specific steps of using the LBT rule to judge are not limited. If the user equipment determines that the shared spectrum can be occupied, then the user equipment sends first indication information to indicate to the base station that the user equipment can occupy the shared spectrum.

Step 63, the user equipment receives second indication information sent by the base station according to the first indication information. Wherein, the second indication information is used to indicate to the user equipment that a device that sends data to the base station according to the first control information in the shared frequency spectrum is not the user equipment. After the base station receives the first indication information sent by the user equipment indicating that the user equipment can occupy the shared spectrum, the base station can determine that the user equipment has occupied the shared spectrum according to the first control information, and send the second indication information to indicate the The device that the user equipment sends data to the base station according to the first control information in the shared frequency spectrum is not the user equipment.

Through the above solution, at this time, since the second indication information received by the user equipment is used to indicate that the user equipment sends data to the base station according to the first control information in the shared frequency spectrum, it is not the user equipment Therefore, the other user equipment will not send data to the base station according to the first control information. Through this embodiment, the base station can schedule multiple user equipments to indicate which user equipment can occupy the shared frequency spectrum to send uplink data, which solves the problem that resources of the shared frequency spectrum indicated by the first control information of multiple user equipments overlap. , the collision problem caused by multiple users sending data on the shared frequency spectrum at the same time improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, after the user equipment sends the first indication information to the base station, the user equipment receives the second indication information sent by the base station according to the first indication information Before, the user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. In an optional embodiment, after the user equipment sends the first indication information to the base station and before the user equipment receives the second indication information sent by the base station according to the first indication information, the The user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. According to the LBT rule, if the user equipment does not send any signal on the shared frequency spectrum, other user equipment judges that the shared frequency spectrum is free according to the LBT rule, and the other user equipment can occupy the shared frequency spectrum to send data. Sending the first signal by the user equipment may keep occupying the shared frequency spectrum, so as to prevent other user equipment from occupying the shared frequency spectrum and causing the user equipment to lose a chance to occupy the shared frequency spectrum.

In an optional embodiment, the user equipment receives second control information from the base station; after the user equipment sends the first indication information to the base station, the user equipment receives the second control information from the base station according to the second control information. The user equipment sends second data to the base station according to the second control information before the second indication information sent by the indication information. After the user equipment sends the first indication information to the base station, before the user equipment receives the second indication information sent by the base station according to the first indication information, the user equipment cannot information to send uplink data to the base station, if the first signal sent by the user equipment for occupying the shared spectrum does not carry valid data information during this period, the shared spectrum is wasted. Therefore, through the user The device receives second control information from the base station, after the user equipment sends first indication information to the base station, and before the user equipment receives second indication information sent by the base station according to the first indication information, The user equipment sends the second data to the base station according to the second control information, so that after the user equipment sends the first indication information to the base station, the user equipment receives the In the period of time before the second indication information sent by the first indication information, the shared spectrum is used to send effective data, which improves the utilization efficiency of the shared spectrum.

In an optional embodiment, the second indication information is further used to instruct the user equipment to stop sending the first signal or the second data. Thus, the interference of the first signal or the second data on the first data of other users is avoided.

In an optional embodiment, the base station sends second control information for different user equipments respectively, and resources occupied by data transmission indicated by the second control information are orthogonal to each other. Interference between the different users when sending data according to the second control information at the same time is avoided.

In an optional embodiment, the first indication information or the second indication information is carried by a preset sequence or by a physical control channel. The preset sequence is a CAZAC sequence. base station for users The device separately preconfigures the CAZAC sequence used to bear the first indication information and the CAZAC sequence used to bear the second indication information. Optionally, the preset sequence carrying the first indication information or the second indication information occupies one OFDM symbol in time. Optionally, the first indication information is carried by a physical uplink control channel (PUCCH). Optionally, the second indication information is carried by a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH). .

In an optional embodiment, after the user equipment receives the first control information from the base station and before the user equipment sends the first indication information to the base station, the user equipment detects the shared frequency spectrum to generate the first indication information.

In an optional embodiment, the shared frequency spectrum is a frequency spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. Optionally, the shared spectrum is an unlicensed spectrum.

FIG. 7 is a user equipment provided by an embodiment of the present invention, configured to execute the method provided by the embodiment of FIG. 6 , and the user equipment includes a receiving unit 701 and a sending unit 702 .

The receiving unit 701 is configured to receive first control information from a base station. The first control information is consistent with the first control information in the embodiment in FIG. 6 , and details are not repeated here.

The sending unit 702 is configured to send first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum. The user equipment judges whether the shared spectrum can be occupied according to the usage rule of the shared spectrum. For example, the user equipment monitors the shared spectrum according to the LBT rule. If there is no signal occupying the shared spectrum during monitoring, it is determined whether the user can occupy the shared spectrum according to the LBT rule. The specific content of the LBT rule and the specific steps of using the LBT rule Not limited. If the user equipment determines that the shared spectrum can be occupied, then the user equipment sends first indication information to indicate to the base station that the user equipment can occupy the shared spectrum.

The receiving unit 701 is further configured to receive second indication information sent by the base station according to the first indication information, where the second indication information is used to indicate to the user equipment that in the shared spectrum according to the first indication information, A control information device that sends data to the base station is not the user equipment. After the base station receives the first indication information sent by the user equipment indicating that the user equipment can occupy the shared spectrum, the base station can determine that the user equipment has occupied the shared spectrum according to the first control information, and send the second indication information to indicate the The device that the user equipment sends data to the base station according to the first control information in the shared frequency spectrum is not the user equipment.

Through the above solution, at this time, since the second indication information received by the user equipment is used to indicate indicating that the user equipment sends data to the base station according to the first control information in the shared frequency spectrum is not the user equipment, therefore, the other user equipment will not send data to the base station according to the first control information data. Through this embodiment, the base station can schedule multiple user equipments to indicate which user equipment can occupy the shared frequency spectrum to send uplink data, which solves the problem that resources of the shared frequency spectrum indicated by the first control information of multiple user equipments overlap. , the collision problem caused by multiple users sending data on the shared frequency spectrum at the same time improves the utilization efficiency of the shared frequency spectrum.

In an optional embodiment, after the sending unit 702 sends the first indication information to the base station, and before the receiving unit 701 receives the second indication information sent by the base station according to the first indication information, the The sending unit 702 sends a first signal, where the first signal is used to occupy the shared frequency spectrum. In an optional embodiment, after the user equipment sends the first indication information to the base station and before the user equipment receives the second indication information sent by the base station according to the first indication information, the The user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. According to the LBT rule, if the user equipment does not send any signal on the shared frequency spectrum, other user equipment judges that the shared frequency spectrum is free according to the LBT rule, and the other user equipment can occupy the shared frequency spectrum to send data. Sending the first signal by the user equipment may keep occupying the shared frequency spectrum, so as to prevent other user equipment from occupying the shared frequency spectrum and causing the user equipment to lose a chance to occupy the shared frequency spectrum.

In an optional embodiment, the receiving unit 701 receives second control information from the base station; after the sending unit 702 sends the first indication information to the base station, the receiving unit 701 receives the Before the second indication information sent by the first indication information, the sending unit 702 sends the second data to the base station according to the second control information. After the user equipment sends the first indication information to the base station, before the user equipment receives the second indication information sent by the base station according to the first indication information, the user equipment cannot information to send uplink data to the base station, if the first signal sent by the user equipment for occupying the shared spectrum does not carry valid data information during this period, the shared spectrum is wasted. Therefore, through the user The device receives second control information from the base station, after the user equipment sends first indication information to the base station, and before the user equipment receives second indication information sent by the base station according to the first indication information, The user equipment sends the second data to the base station according to the second control information, so that after the user equipment sends the first indication information to the base station, the user equipment receives the In the period of time before the second indication information sent by the first indication information, the shared spectrum is used to send effective data, which improves the utilization efficiency of the shared spectrum.

In an optional embodiment, the second indication information is further used to instruct the sending unit 702 to stop sending the first signal or the second data. Thus, the interference of the first signal or the second data on the first data of other users is avoided.

In an optional embodiment, the base station sends second control information for different user equipments respectively, and resources occupied by data transmission indicated by the second control information are orthogonal to each other. Interference between the different users when sending data according to the second control information at the same time is avoided.

In an optional embodiment, the first indication information or the second indication information is carried by a preset sequence or by a physical control channel. Optionally, the preset sequence is a CAZAC sequence. The base station preconfigures the CAZAC sequence used to bear the first indication information and the CAZAC sequence used to bear the second indication information for the user equipment respectively. Optionally, the preset sequence carrying the first indication information or the second indication information occupies one OFDM symbol in time. Optionally, the first indication information is carried by a physical uplink control channel (PUCCH). Optionally, the second indication information is carried by a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH). .

In an optional embodiment, the user equipment further includes a processing unit, after the receiving unit 701 receives the first control information from the base station and before the sending unit 702 sends the first indication information to the base station, The processing unit detects the shared frequency spectrum to generate the first indication information.

In an optional embodiment, the shared frequency spectrum is a frequency spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. Optionally, the shared spectrum is an unlicensed spectrum.

In an optional embodiment, the user equipment provided in the embodiment of FIG. 7 may include a processor, and the processor may specifically be: a baseband processor, a digital signal processor (Digital Signal Processor, DSP), a field programmable gate array (Field Programmable Gata Array, FPGA) or Central Processing Unit (Central Processing Unit, CPU). The sending unit 702 may be a transmitter (transmitter), and the receiving unit 501 may be a receiver (receiver). The receiving unit 701 and the sending unit 702 may also be implemented by a transceiver (transceiver). The receiver, transmitter and transceiver may be radio frequency circuitry or a combination comprising the processor and radio frequency circuitry. Optionally, the base station provided in the embodiment of FIG. 7 includes a processor, a transmitter, and a receiver, where the receiver and the receiver are configured to receive first control information from the base station; the transmitter is configured to send the first control information to the base station. One indication information, the first indication information is used to indicate that the user equipment can occupy Shared spectrum; the receiver is further configured to receive second indication information sent by the base station according to the first indication information, where the second indication information is used to indicate to the user equipment that in the shared spectrum according to the The device that sends data to the base station by the first control information is not the user equipment

FIG. 8 is a flowchart of a data sending and receiving method on a shared frequency spectrum provided by an embodiment of the present invention. FIG. 9 is a schematic diagram of a data sending and receiving method on a shared frequency spectrum provided by an embodiment of the present invention.

Step 81, the base station sends first control information to UE1 and UE2. Optionally, the first control information includes a data transmission format, resource allocation information of resources occupied by data transmission, and the like. Optionally, the first control information sent by the base station to UE1 and UE2 is the same. Optionally, shared spectrum resources indicated by the first control information sent by the base station to UE1 and UE2 overlap. Optionally, the base station may also send different control information to UE1 and UE2 respectively. In an optional embodiment, the first control information further includes effective time indication information, and the effective time indication information is used to indicate the effective time range of the first control information, that is, the first control information is Pre-scheduling control information. Optionally, the effective time indication information may be indicated through third indication information sent by the base station to the user equipment.

Step 82, UE1 monitors the shared frequency spectrum according to the LBT rule.

Step 83, UE2 monitors the shared frequency spectrum according to the LBT rule. Optionally, the sequence of steps 81, 82, and 83 is not limited.

Suppose, in step 82 and step 83, both UE1 and UE2 hear that the shared frequency spectrum is idle.

Step 84, UE1 sends first indication information to the base station, where the first indication information is used to indicate that UE1 has occupied the shared frequency spectrum. Wherein, as shown in FIG. 9 , the first indication information in step 84 shown in FIG. 8 is sent by UE1 and received by the base station at time n.

Step 85, UE2 sends fourth indication information to the base station, where the fourth indication information is used to indicate that UE2 occupies the shared frequency spectrum. Wherein, as shown in FIG. 9 , the fourth indication information in step 85 shown in FIG. 8 is sent by UE2 and received by the base station at time n. Optionally, the order of steps 84 and 85 is not limited.

Step 86: After receiving the first indication information, the base station learns that UE1 has occupied the shared frequency spectrum, and the base station sends second indication information to UE1 to indicate that UE1 can send to the base station according to the first control information sent to UE1 in step 81. data. Wherein, as shown in FIG. 9 , the second indication information in step 86 shown in FIG. 8 is sent by the base station at time n and received by UE1 at time n+k.

In step 87, the base station learns that UE2 has occupied the shared spectrum after receiving the fourth indication information, and the base station sends fifth indication information to UE2 to indicate that UE2 cannot transmit to the base station according to the first control information sent to UE2 in step 81. Sending data, that is, the fifth indication information is used to indicate to the UE2 that the device that sends data to the base station in the shared frequency spectrum according to the first control information is not the UE2. Wherein, as shown in FIG. 9 , the fifth indication information in step 87 shown in FIG. 8 is sent by the base station at time n and received by UE1 at time n+k. Optionally, the order of steps 86 and 87 is not limited.

Step 88, UE1 sends the first data to the base station according to the second indication information and the first control information. Wherein, as shown in FIG. 9 , step 88 UE1 shown in FIG. 8 sends the first data from time n+k to time n+k+v according to the second indication information.

Of course, since the fifth indication information received by UE2 indicates that the device that sends data to the base station in the shared frequency spectrum according to the first control information is not the UE2, therefore, UE2 will not transmit data to the base station according to the first control information. Send data to the base station. As shown in FIG. 9 , UE2 does not send data from time n+k to time n+k+v. In the case that the resources of the shared spectrum indicated by the first control information sent by the base station to UE1 and UE2 are the same or overlap, the problem of interference caused when both UE1 and UE2 send data to the base station according to the first control information is avoided.

Optionally, in step 86, the base station sends second indication information to UE1 at time n, the second indication information instructs UE1 to start sending data to the base station from time n+t, and then UE1 starts sending data to the base station from time n+t data.

Optionally, after the UE1 sends the first indication information to the base station and before the UE1 sends the first data to the base station according to the second indication information and the first control information, the UE1 sends a first signal, where the first signal is used to occupy the shared frequency spectrum. Or, the base station sends the second control information to UE1, and UE1 follows the instruction of the second control information after UE1 sends the first instruction information to the base station and before the n+t time according to the second control information Send the second data to the base station. As shown in FIG. 9 , UE1 sends the first signal from sending the first indication information to time n+k or sends the second data to the base station according to the instruction of the second control information. The second indication information is also used to instruct UE1 to stop sending the first signal or the second data at the time n+t.

Optionally, after the UE2 sends the fifth indication information to the base station, and the fifth indication information received by the UE2 indicates that the shared spectrum is used to send data to the base station according to the first control information before the device is not the UE2, the UE2 sends the first signal, the first A signal is used to occupy the shared spectrum. Or, the base station sends the second control information to UE2, and UE2 receives fifth indication information after the UE2 sends the first indication information to the base station according to the second control information, and indicates that the shared frequency spectrum according to the Before the device that sends data to the base station in the first control information is not the UE2, it sends the second data to the base station according to the instruction of the second control information. As shown in FIG. 9 , UE2 sends the first signal or sends the second data to the base station according to the instruction of the second control information from sending the fourth indication information to time n+k. The fifth indication information is also used to instruct UE2 to stop sending the first signal or the second data.

Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the relationship between hardware and software Interchangeability. In the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or software functions. Realized in the form of energy unit.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

In the case of no conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (58)

A method for receiving data on a shared frequency spectrum, comprising: The base station sends the first control information to the user equipment; receiving, by the base station, first indication information from the user equipment, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum; The base station sends second indication information to the user equipment according to the first indication information, where the second indication information is used to indicate to the user equipment that, in the shared frequency spectrum, according to the first control information, the The device for sending data by the base station is the user equipment; The base station receives first data from the user equipment according to the second indication information and the first control information. The method according to claim 1, characterized in that, When the base station receives the first indication information from the user equipment, the base station also receives fourth indication information from other user equipment, where the fourth indication information is used to indicate that the other user equipment can occupy the shared frequency spectrum; After the base station also receives fourth indication information from other user equipment, the base station sends fifth indication information to the other user equipment, where the fifth indication information is used to indicate the other user equipment, in the shared The device that spectrum sends data to the base station according to the first control information is not the other user equipment. The method according to claim 1 or 2, characterized in that, Before the base station receives the first indication information from the user equipment, the base station sends third indication information to the user equipment, where the third indication information is used to indicate a valid time range of the first control information. The method according to claim 1 or 3, wherein the base station sends the second indication information to the user equipment according to the first indication information, specifically, the base station transmits the second indication information according to the first indication information at time n sending second indication information to the user equipment, The second indication information is used to indicate the user equipment, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, specifically, the second indication information is used to indicate The user equipment starts from time n+t, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, The base station receiving the first data from the user equipment according to the second indication information and the first control information is specifically that the base station receives the first data according to the second indication information and the first control information receiving, from the user equipment, the first data sent by the user equipment starting from the n+t moment, where the t is a preset time length. The method according to claim 4, characterized in that the method further comprises: determining, by the base station, a stop moment for the user equipment to send the first data, Wherein, the stop moment is n+t+v, the v is a preset time length, the value of v is carried in the second indication information, or the stop moment is indicated by the base station according to the sixth The information is determined, wherein the sixth indication information is sent by the user equipment to the base station to indicate that the user equipment has finished sending the first data. The method according to claim 4, 5, characterized in that the method further comprises: The base station sends second control information to the user equipment; After the base station receives the first indication information from the user equipment, before receiving the first data sent by the user equipment from the n+t time, the base station according to the second control information from The user equipment receives second data. The method according to claim 6, wherein the second indication information is further used to instruct the base station to stop receiving the second data from the user equipment according to the second control information. The method according to any one of claims 1 to 7, characterized in that, The first indication information or the second indication information or the fourth indication information or the fifth indication information is carried by a preset sequence or by a physical control channel. The method according to any one of claims 1 to 7, characterized in that, The first indication information or the second indication information or the fourth indication information or the fifth indication information may be sent through a shared frequency spectrum. The method according to any one of claims 1 to 9, characterized in that, The shared spectrum is a spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. A base station, characterized in that it comprises: a sending unit, configured to send the first control information to the user equipment; a receiving unit, configured to receive first indication information from the user equipment, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum; The sending unit is further configured to send second indication information to the user equipment according to the first indication information, where the second indication information is used to indicate to the user equipment that in the shared spectrum according to The device for sending data from the first control information to the base station is the user equipment; The receiving unit is further configured to receive first data from the user equipment according to the second indication information and the first control information. The base station according to claim 11, characterized in that, When the receiving unit receives the first indication information from the user equipment, the receiving unit also receives fourth indication information from other user equipment, and the fourth indication information is used to indicate that the other user equipment can occupy the shared spectrum; After the receiving unit also receives fourth indication information from other user equipment, the sending unit sends fifth indication information to the other user equipment, where the fifth indication information is used to indicate that the other user equipment, in the The device that sends data to the base station based on the shared frequency spectrum according to the first control information is not the other user equipment. The base station according to claim 11 or 12, characterized in that, Before the receiving unit receives the first indication information from the user equipment, the sending unit sends third indication information to the user equipment, where the third indication information is used to indicate the effective time of the first control information scope. The base station according to claim 11 or 13, wherein the sending unit sends the second indication information to the user equipment according to the first indication information, specifically, the sending unit at time n according to the first indication information sending the indication information to the user equipment with second indication information, The second indication information is used to indicate the user equipment, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, specifically, the second indication information is used to indicate The user equipment starts from time n+t, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, The receiving unit receiving the first data from the user equipment according to the second indication information and the first control information is specifically that the receiving unit receives the first data from the user equipment according to the second indication information and the first control information The user equipment receives the first data sent by the user equipment starting from the n+t moment, where the t is a preset time length. The base station according to claim 14, characterized in that: The base station further includes a processing unit configured to determine a stop moment for the user equipment to send the first data, Wherein, the stop moment is n+t+v, the v is a preset time length, the value of v is carried in the second indication information, or the stop moment is determined by the processing unit according to the sixth instruction letter The information is determined, wherein the sixth indication information is sent by the user equipment to the base station to indicate that the user equipment has finished sending the first data. The base station according to claims 14 and 15, characterized in that: The sending unit is further configured to send second control information to the user equipment; After the receiving unit receives the first indication information from the user equipment, before receiving the first data sent by the user equipment from the n+t time, the receiving unit according to the second control Information receives second data from the user equipment. The base station according to claim 16, wherein the second indication information is further used to instruct the receiving unit to stop receiving the second data from the user equipment according to the second control information. The base station according to any one of claims 11 to 17, characterized in that, The first indication information or the second indication information or the fourth indication information or the fifth indication information is carried by a preset sequence or by a physical control channel. The base station according to any one of claims 11 to 17, characterized in that, The first indication information or the second indication information or the fourth indication information or the fifth indication information may be sent through a shared frequency spectrum. The base station according to any one of claims 11 to 19, characterized in that, The shared spectrum is a spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. A data transmission method on a shared frequency spectrum, characterized in that, comprising: The user equipment receives first control information from the base station; The user equipment sends first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum; receiving, by the user equipment, second indication information sent by the base station according to the first indication information, where the second indication information is used to instruct the user equipment to send information to the user equipment according to the first control information in the shared spectrum The device for sending data by the base station is the user equipment; The user equipment sends the first data to the base station according to the second indication information and the first control information. The method of claim 21, wherein, Before the user equipment receives the first control information from the base station, the user equipment receives third indication information from the base station, where the third indication information is used to indicate when the first control information is valid time limit. The method according to claim 21 or 22, wherein the receiving by the user equipment the second indication information sent by the base station according to the first indication information is specifically that the user equipment receives the The second indication information sent by the first indication information, The second indication information is used to indicate the user equipment, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, specifically, the second indication information is used to indicate The user equipment starts from time n+t, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, The user equipment sends the first data to the base station according to the second indication information and the first control information, specifically, the user equipment starts from time n+t according to the second indication information and the first The control information sends the first data to the base station, where the t is a preset time length. The method according to claim 23, wherein the user equipment stops sending the first data at a stop moment, wherein the stop moment is n+t+v, and the v is a preset time length , the second indication information carries the value of v, or the stop moment is determined by the base station according to sixth indication information, where the sixth indication information is sent by the user equipment to the base station to indicate The user equipment finishes sending the first data. The method according to any one of claims 21-22, characterized in that, After the user equipment sends first indication information to the base station and before the user equipment sends first data to the base station according to the second indication information and the first control information, The user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. The method according to claim 23, characterized in that after the user equipment sends the first indication information to the base station and before the n+t time, The user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. The method according to claim 26, wherein the second indication information is further used to instruct the user equipment to stop sending the first signal at the time n+t. The method of claim 23, wherein, receiving, by the user equipment, second control information from the base station; After the user equipment sends the first indication information to the base station and before the n+t time, the user equipment sends second data to the base station according to the second control information. The method according to claim 28, wherein the second indication information is further It is used to instruct the user equipment to stop sending the second data to the base station according to the second control information at the time n+t. A method according to any one of claims 21 to 29, wherein, The first indication information or the second indication information is carried by a preset sequence or by a physical control channel. A method according to any one of claims 21 to 30, wherein, After the user equipment receives the first control information from the base station and before the user equipment sends the first indication information to the base station, the user equipment detects the shared frequency spectrum to generate the first indication information . A method according to any one of claims 21 to 31, wherein, The shared spectrum is a spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. A user equipment, characterized by comprising: a receiving unit, configured to receive first control information from a base station; a sending unit, configured to send first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum; The receiving unit is further configured to receive second indication information sent by the base station according to the first indication information, where the second indication information is used to indicate to the user equipment that, in the shared spectrum according to the first indication information, The device that sends control information to the base station is the user equipment; The sending unit is configured to send the first data to the base station according to the second indication information and the first control information. The user equipment according to claim 33, characterized in that, Before the receiving unit receives the first control information from the base station, the receiving unit receives third indication information from the base station, where the third indication information is used to indicate a valid time range of the first control information. The user equipment according to claim 33 or 34, wherein the receiving unit receiving the second indication information sent by the base station according to the first indication information is specifically that the receiving unit receives the The second indication information sent according to the first indication information, The second indication information is used to indicate the user equipment, and the device that sends data to the base station according to the first control information in the shared frequency spectrum is the user equipment, specifically, the second indication information is used to indicate The user equipment starts from time n+t, and in the shared frequency spectrum according to the first A device that sends control information to the base station is the user equipment, The sending unit sends the first data to the base station according to the second indication information and the first control information, specifically, the sending unit starts from time n+t according to the second indication information and the first The control information sends the first data to the base station, where the t is a preset time length. The user equipment according to claim 35, wherein the sending unit stops sending the first data at a stop moment, wherein the stop moment is n+t+v, and v is a preset time The length, the value of v carried in the second indication information, or the stop moment is determined by the base station according to sixth indication information, where the sixth indication information is sent by the user equipment to the base station to Instructing the user equipment to finish sending the first data. The user equipment according to any one of claims 33-34, characterized in that, After the sending unit sends the first indication information to the base station, and before the sending unit sends the first data to the base station according to the second indication information and the first control information, The sending unit sends a first signal, where the first signal is used to occupy the shared frequency spectrum. The user equipment according to claim 35, characterized in that after the sending unit sends the first indication information to the base station and before the n+t time, The sending unit sends a first signal, where the first signal is used to occupy the shared frequency spectrum. The user equipment according to claim 38, wherein the second indication information is further used to instruct the sending unit to stop sending the first signal at the time n+t. The user equipment according to claim 35, characterized in that, the receiving unit receives second control information from the base station; After the sending unit sends the first indication information to the base station and before the n+t time, the sending unit sends second data to the base station according to the second control information. The user equipment according to claim 40, wherein the second indication information is further used to instruct the sending unit to stop sending the second data. The user equipment according to any one of claims 33 to 41, characterized in that, The first indication information or the second indication information is carried by a preset sequence or by a physical control channel. The user equipment according to any one of claims 33 to 42, wherein the user equipment further includes a processing unit, After the receiving unit receives the first control information from the base station and before the sending unit sends the first indication information to the base station, the processing unit is configured to detect the shared spectrum to generate the first Instructions. The user equipment according to any one of claims 33 to 43, characterized in that, The shared spectrum is a spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. A data transmission method on a shared frequency spectrum, characterized in that, comprising: The user equipment receives first control information from the base station; The user equipment sends first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum; receiving, by the user equipment, second indication information sent by the base station according to the first indication information, where the second indication information is used to instruct the user equipment to send information to the user equipment according to the first control information in the shared spectrum The equipment used by the base station to send data is not the user equipment. The method of claim 45, wherein, After the user equipment sends the first indication information to the base station, before the user equipment receives the second indication information sent by the base station according to the first indication information, The user equipment sends a first signal, where the first signal is used to occupy the shared frequency spectrum. The method of claim 45, wherein, receiving, by the user equipment, second control information from the base station; After the user equipment sends the first indication information to the base station, before the user equipment receives the second indication information sent by the base station according to the first indication information, the user equipment according to the second control information Send the second data to the base station. A method according to claim 46 or 47, wherein, The second indication information is further used to instruct the user equipment to stop sending the first signal or the second data. A method according to any one of claims 45 to 48, wherein, The first indication information or the second indication information is carried by a preset sequence or by a physical control channel. A method according to any one of claims 45 to 49, wherein, After the user equipment receives the first control information from the base station and before the user equipment sends the first indication information to the base station, the user equipment detects the shared frequency spectrum to generate Generate the first indication information. A method according to any one of claims 45 to 50, wherein, The shared spectrum is a spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems. A user equipment, characterized by comprising: a receiving unit, configured to receive first control information from a base station; a sending unit, configured to send first indication information to the base station, where the first indication information is used to indicate that the user equipment can occupy a shared frequency spectrum; The receiving unit is further configured to receive second indication information sent by the base station according to the first indication information, where the second indication information is used to indicate to the user equipment that, in the shared spectrum according to the first indication information, The device that sends control information to the base station is not the user equipment. The user equipment according to claim 52, characterized in that, After the sending unit sends the first indication information to the base station, before the receiving unit receives the second indication information sent by the base station according to the first indication information, The sending unit sends a first signal, where the first signal is used to occupy the shared frequency spectrum. The user equipment according to claim 52, characterized in that, the receiving unit receives second control information from the base station; After the sending unit sends the first indication information to the base station, before the receiving unit receives the second indication information sent by the base station according to the first indication information, the sending unit according to the second control information Send the second data to the base station. The user equipment according to claim 53 or 54, characterized in that, The second indication information is further used to instruct the sending unit to stop sending the first signal or the second data. The user equipment according to any one of claims 52 to 55, characterized in that, The first indication information or the second indication information is carried by a preset sequence or by a physical control channel. The user equipment according to any one of claims 52 to 56, wherein the user equipment further includes a processing unit, After the receiving unit receives the first control information from the base station and before the sending unit sends the first indication information to the base station, the processing unit detects the shared frequency spectrum to generate the first indication information . The user equipment according to any one of claims 52 to 57, characterized in that, The shared spectrum is a spectrum that can be shared by wireless communication systems operated by different wireless communication operators or different wireless communication systems.