WO2016004626A1

WO2016004626A1 - Information transmission method and device

Info

Publication number: WO2016004626A1
Application number: PCT/CN2014/082067
Authority: WO
Inventors: 李强; 武雨春; 黎超
Original assignee: 华为技术有限公司
Priority date: 2014-07-11
Filing date: 2014-07-11
Publication date: 2016-01-14
Also published as: CN105432134A

Abstract

The present invention relates to the field of communications. Disclosed are an information transmission method and device, which can solve the problem that when a user equipment transmits uplink data to a network device, the network device has excessively large power consumption and causes large interference to other network devices. The specific solution is: a network device determines a first time-frequency resource, sends scheduling signaling to a user equipment on the first time-frequency resource, and receives uplink data sent by the user equipment on the first time-frequency resource. The present invention is used in information transmission.

Description

Information transmission method and device

Technical field

The present invention relates to the field of communications, and in particular, to an information transmission method and device.

Background technique

In daily life, people use wireless communication electronic devices such as mobile phones to transmit information through network devices such as base stations. As the amount of wireless communication traffic increases, communication systems require faster information transmission speeds to meet people's needs, which requires a large number of network devices such as base stations to be deployed.

Taking a base station as an example, when more and more base stations are deployed, the density of base stations is increasing, especially in crowded areas, such as airports, shopping malls, etc., where a large number of base stations are deployed, although the information transmission speed is effectively improved, Interference between adjacent base stations is enhanced. Therefore, the prior art shuts down the base station when the base station does not need data transmission, reduces signal interference to other base stations, and reduces power consumption of the base station. Here, the shutdown of the base station is only a relative shutdown, and the base station does not completely stop. The work is only when the data transmission is started compared to when the base station is turned on, the base station in the off state does not continue to work. However, the base station is only in the off state when the data transmission is not performed, and when the user equipment transmits data to the base station, that is, when the user equipment transmits the uplink data, the base station is in the on state, but only a small amount of information is sent, which is greatly increased. Power consumption, causing a lot of interference.

Summary of the invention

The embodiments of the present invention provide an information transmission method and device, which solves the problem that when the user equipment transmits uplink data to the network device, the network device consumes too much power and interferes with other network devices.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, an information transmission method is applied to a user equipment to transmit uplink data to a network device, including:

Determining a first time-frequency resource, where the first time-frequency resource is used for uplink data transmission, the first time-frequency resource is a time-frequency resource in a first area, and the first area is available to the network device Part of a time-frequency resource;

Sending scheduling signaling to the user equipment on the first time-frequency resource, where the scheduling signaling And indicating a time-frequency resource range of the first area, where the scheduling signaling is only transmitted on the first time-frequency resource;

Receiving, by the user equipment, the uplink data sent on the first time-frequency resource. With reference to the first aspect, in a first possible implementation manner, before the network device sends the scheduling signaling to the user equipment on the first time-frequency resource, the method further includes:

Sending configuration information to the user equipment, where the configuration information is used to indicate that the network device sends the scheduling signaling to the user equipment on the first time-frequency resource.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, before the network device sends the scheduling signaling to the user equipment on the first time-frequency resource, Includes:

Transmitting, by the user equipment, a first reference signal, where the first reference signal is used for time-frequency synchronization between the user equipment and the network device, where the preset parameter includes the first At least one of a transmission period of a reference signal, a length of time during which the first reference signal continues for one period, and a number of physical resource units occupied by the first reference signal.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation,

The first reference signal is a discovery reference signal.

With the second possible implementation of the first aspect or the third possible implementation of the first aspect, in a fourth possible implementation, before the sending the first reference signal to the user equipment, Includes:

Generating the preset parameter;

Sending the preset parameter to the user equipment.

With reference to any one of the first aspect to the fourth possible implementation of the first aspect, in a fifth possible implementation manner,

The first time-frequency resource includes at least one of a subframe in the first region, a physical resource block in the first region, and orthogonal frequency division multiplexing OFDM symbols in the first region.

Combining the first aspect to any of the fifth possible implementations of the first aspect In a sixth possible implementation manner, after the receiving, by the user equipment, the uplink data that is sent by the user equipment on the first time-frequency resource, the method further includes:

Sending feedback information to the user equipment on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device is not correct. Receiving the uplink data.

In conjunction with the sixth possible implementation of the first aspect, in a seventh possible implementation,

The feedback information is an acknowledgment ACK information/non-confirmation NACK information.

The second aspect is an information transmission method, which is applied to a user equipment to transmit uplink data to a network device, including:

And receiving the scheduling signaling sent by the network device on the first time-frequency resource, where the scheduling signaling is used to indicate a time-frequency resource range of the first area, where the first area is available when the network device is available Part of the frequency resource, the first time-frequency resource is used for transmission of uplink data, and the scheduling signaling is only transmitted on the first time-frequency resource;

Transmitting the uplink data to the network device on the first time-frequency resource.

In combination with the second party, in a first possible implementation manner, before the receiving, by the network device, the scheduling signaling sent by the first time-frequency resource, the method further includes:

Receiving configuration information sent by the network device, where the configuration information is used to indicate that the network device sends the scheduling signaling to the user equipment on the first time-frequency resource.

With the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, before the receiving, by the network device, the scheduling signaling sent on the first time-frequency resource, :

And receiving, by the preset parameter, a first reference signal sent by the network device, where the first reference signal is used for time-frequency synchronization between the user equipment and the network device, where the preset parameter includes the At least one of a transmission period of the first reference signal, a length of time during which the first reference signal continues for one period, and a number of physical resource units occupied by the first reference signal.

In conjunction with the second possible implementation of the second aspect, in a third possible implementation manner, The first reference signal is a discovery reference signal.

With the second possible implementation of the second aspect or the third possible implementation of the second aspect, in a fourth possible implementation, before the receiving the first reference signal sent by the network device, Also includes:

Receiving the preset parameter sent by the network device.

With reference to any one of the second aspect to the fourth possible implementation of the second aspect, in a fifth possible implementation manner,

With reference to any implementation of the second aspect to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the sending, by using the first time-frequency resource, the network device After the uplink data, it also includes:

Receiving feedback information sent by the network device on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not The uplink data is correctly received.

In conjunction with the sixth possible implementation of the second aspect, in a seventh possible implementation,

The feedback information is an acknowledgement ACK/non-acknowledgement NACK message.

In a third aspect, a network device includes a processor, a memory, a transmitter, a receiver, and a bus, wherein the processor, the memory, the transmitter, and the receiver are connected to each other through the bus;

The processor is configured to determine a first time-frequency resource, where the first time-frequency resource is used for uplink data transmission, and the first time-frequency resource is a time-frequency resource in a first area, where the An area is part of a time-frequency resource available to the network device;

The transmitter is configured to send scheduling signaling to the user equipment on a first time-frequency resource that is determined by the processor, where the scheduling signaling is used to indicate a time-frequency resource range of the first area, where The scheduling signaling is only transmitted on the first time-frequency resource;

a receiver, configured to receive, by the user equipment, the first time-frequency resource The upstream data is described.

In combination with a third party, in the first possible implementation,

The transmitter is further configured to send configuration information to the user equipment, where the configuration information is used to indicate that the network device sends the scheduling signaling to the user equipment on the first time-frequency resource.

In conjunction with the third aspect or the first possible implementation of the third aspect, in a second possible implementation,

The transmitter is further configured to send a first reference signal to the user equipment according to a preset parameter, where the first reference signal is used for time-frequency synchronization between the user equipment and the network device, where The preset parameter includes at least one of a transmission period of the first reference signal, a duration of the first reference signal in one period, and a quantity of physical resource units occupied by transmitting the first reference signal once. Kind.

In conjunction with the second possible implementation of the third aspect, in a third possible implementation,

The first reference signal is a discovery reference signal.

In conjunction with the second possible implementation of the third aspect or the third possible implementation of the third aspect, in a fourth possible implementation,

The processor is further configured to generate the preset parameter;

The transmitter is further configured to send the preset parameter generated by the processor to the user equipment.

With reference to any one of the third aspect to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner,

With reference to any one of the third aspect to the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner,

The transmitter is further configured to send feedback information to the user equipment on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink The data or the feedback information is used to indicate that the network device does not correctly receive the uplink data.

In conjunction with the sixth possible implementation of the third aspect, in a seventh possible implementation,

In a fourth aspect, a user equipment includes a processor, a memory, a transmitter, a receiver, and a bus, wherein the processor, the memory, the transmitter, and the receiver are connected to each other through the bus;

a receiver, configured to receive scheduling signaling sent by the network device on a first time-frequency resource, where the scheduling signaling is used to indicate a time-frequency resource range of the first area, where the first area is a part of a time-frequency resource available to the network device, where the first time-frequency resource is used for uplink data transmission, the scheduling signaling is only transmitted on the first time-frequency resource, and a transmitter is used in the The uplink data is sent to the network device on a time-frequency resource.

In combination with the fourth aspect, in a first possible implementation manner,

The receiver is further configured to receive the configuration information sent by the network device, where the configuration information is used to indicate that the network device sends the scheduling signaling to the user equipment on the first time-frequency resource.

In conjunction with the fourth aspect or the first possible implementation of the fourth aspect, in a second possible implementation,

The receiver is further configured to receive, according to a preset parameter, a first reference signal that is sent by the network device, where the first reference signal is used for time-frequency synchronization between the user equipment and the network device, where The preset parameter includes at least a transmission period of the first reference signal, a duration of the first reference signal in one period, and at least one of a number of physical resource units occupied by the first reference signal. One.

In conjunction with the second possible implementation of the fourth aspect, in a third possible implementation,

The first reference signal is a discovery reference signal.

Combining the second possible implementation of the fourth aspect or the third of the fourth aspect Energy implementation, in the fourth possible implementation,

The receiver is further configured to receive the preset parameter sent by the network device. With reference to any one of the fourth aspect to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner,

With reference to any one of the fourth aspect to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner,

The receiver is further configured to receive the feedback information sent by the network device on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information. And is used to indicate that the network device does not correctly receive the uplink data.

In conjunction with the sixth possible implementation of the fourth aspect, in a seventh possible implementation,

The information transmission method provided by the embodiment of the present invention, when the user equipment transmits the uplink data to the network device, the network device does not need to be completely opened, and can remain in the closed state. The network device that is closed here is only a relative closure, not The network device stops working completely, but the network device in the closed state does not continue to work when compared with the network device to open the data transmission. The network device in the closed state only opens part of the time-frequency resource, that is, the first time-frequency resource. The time-frequency resource sends the scheduling signaling, so that when the user equipment performs uplink data transmission on the network device, the network device does not continue to work, and does not open some time-frequency resources, which reduces the power consumption of the network device, and reduces the other Interference from network equipment. At the same time, the uplink receiving device of the network device can be always turned on, because the power consumption of the receiving device relative to the transmitting device is small, and does not cause interference of the network, so it can be always turned on.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following The drawings used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art will not be creatively labored. Further drawings can also be obtained from these drawings.

1 is a schematic flowchart of an information transmission method according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of another information transmission method according to an embodiment of the present invention; FIG. 3 is a schematic diagram of another embodiment of the present invention. Schematic diagram of information exchange method information exchange;

FIG. 4 is a schematic diagram of a preset mode change according to an embodiment of the present invention; FIG.

FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention; FIG. 7 is a network device according to another embodiment of the present invention; FIG. 8 is a schematic structural diagram of a user equipment according to another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

An embodiment of the present invention provides an information transmission method, which is applied to a user equipment to transmit uplink data to a network device. Optionally, the user equipment may be an electronic communication device such as a mobile phone or a tablet computer, and the network device may be a base station, as shown in FIG. Show, including the following steps:

101. Determine a first time-frequency resource.

The first time-frequency resource is used for the transmission of the uplink data, the first time-frequency resource is a time-frequency resource in the first area, and the first area is a part of the time-frequency resource available to the network device, and the time-frequency of the network device is opened. The area occupied by resources. Uplink data refers to data transmitted by a user equipment to a network device.

Preferably, the first time-frequency resource may have three cases: First, the first time-frequency resource is a subframe in the first area, and the first time-frequency resource may be a network device that sends a discovery reference signal. Subframe of (Disocvery RS ). For example, under normal circumstances, the network device sends 40 subframes every 40 milliseconds, and when only the time-frequency resources in the first region are opened, the network device sends 5 subframes every 40 milliseconds. In the cell-off state, the network device sends a discovery reference signal ( Discovery RS) in 5 subframes every 40 milliseconds. Second, the first time-frequency resource is a physical resource block (PRB) in the first region. For example, under normal circumstances, the bandwidth of the network device is 50 physical resource blocks. When only the time-frequency resources in the first area are opened, the network device only opens the bandwidth of the six physical resource blocks. The first time-frequency resource is an OFDM (Orthogonal Frequency Division Multiplexing) symbol. For example, the network device sends one subframe every millisecond, and each subframe contains 12 or 14 OFDM symbols, and only opens. When the time-frequency resource in the first region is used, only three OFDM symbols are opened in one subframe, and information is transmitted on the opened OFDM symbol.

102. Send scheduling signaling to the user equipment on the first time-frequency resource.

Specifically, the user equipment needs to send uplink data according to the scheduling signaling, where the scheduling signaling includes a time-frequency resource range for indicating the first area, and the scheduling signaling is only transmitted on the first time-frequency resource.

103. Receive uplink data sent by the user equipment on the first time-frequency resource.

An embodiment of the present invention provides another information transmission method, which is applied to a user equipment to transmit uplink data to a network device. Optionally, the user equipment may be a mobile phone, a tablet computer, or the like. The sub-communication device, the network device may be a base station, as shown in FIG. 2, including the following steps:

201. Receive scheduling signaling sent by the network device on the first time-frequency resource.

The scheduling signaling is used to indicate a time-frequency resource range of the first area, where the first area is part of a time-frequency resource available to the network device, and the first time-frequency resource is used for uplink data transmission, and the scheduling signaling is only in the first Transmission on time-frequency resources.

202. Send uplink data to the network device on the first time-frequency resource.

The information transmission method provided by the embodiment of the present invention, when the user equipment transmits the uplink data to the network device, the network device does not need to be completely opened, and can remain in the closed state. The network device that is closed here is only a relative closure, not The network device stops working completely, but the network device in the closed state does not continue to work when compared with the network device to open the data transmission. The network device in the closed state only opens part of the time-frequency resource, that is, the time-frequency resource in the first region. The user equipment receives the scheduling signaling on the time-frequency resource in the first area, so that when the user equipment performs uplink data transmission on the network device, the network device does not continue to work, and does not open some time-frequency resources, thereby reducing the network device. Power consumption and reduced interference to other network devices. Optionally, the uplink receiving module of the network device can be always turned on, because the receiving module has less power consumption relative to the transmitting module, and does not cause network interference, so it can be always turned on.

With reference to the embodiments corresponding to the foregoing FIG. 1 and FIG. 2, another embodiment of the present invention provides an information transmission method, which is applied to a user equipment to transmit uplink data to a network device. Optionally, the user equipment may be a mobile phone, a tablet computer, or the like. The electronic communication device, the network device may be a base station. In this embodiment, the base station is taken as an example for description. Referring to FIG. 3, the following steps are included:

301. The network device generates a preset parameter, and sends the preset parameter to the user equipment. The preset parameter includes a sending period of the first reference signal, a duration of the first reference signal in one period, and a quantity of physical resource units occupied by sending the first reference signal once. At least one of them.

Optionally, referring to FIG. 4, in this embodiment, when the user equipment transmits uplink data to the base station, the base station remains in the off state, and the base station sends only the first reference signal in the off state, and optionally, the first reference signal is found. Reference signal, in the prior art, the reference signal is found It is only used for cell discovery and signal quality measurement, and does not require precise synchronization. In this embodiment, the user equipment needs to receive scheduling signaling, and needs to perform time-frequency synchronization with the base station according to the discovery reference signal. Therefore, the discovery reference signal needs to be adjusted. The period of the transmission, the duration of the transmission once, or the number of physical resource units occupied once is transmitted. Of course, it is also possible to simultaneously adjust a plurality of the three, and the case of changing the period of the discovery reference signal is shown in FIG.

Optionally, the base station may be temporarily opened, and the preset parameter may be sent to the user equipment by using the sent signaling, or the preset parameter may be sent to the user equipment by using another base station in the backhaul link, or when the user equipment detects the discovery. After the period, bandwidth, and time-frequency position of the reference signal are changed, it can be known that the base station enters the preset mode, and the discovery reference signal can be received through the preset preset mode. For example, the base station sends the discovery reference signal in the form of a broadcast, and finds that the period of the reference signal changes from 240 milliseconds to 5 milliseconds, and the user equipment can directly receive the discovery reference signal according to the preset mode by detecting.

302. The user equipment adjusts the receiving frequency and the receiving time according to the first reference signal, and synchronizes with the network device to achieve the time frequency.

Optionally, the user equipment adjusts the receiving frequency and the receiving time. When the signal strength of the reference signal is found to be the maximum, it indicates that the time synchronization is achieved with the network device. Of course, in the actual implementation process, the signal strength is detected. There will be errors, as long as the signal strength of the reference signal is found to be within a certain wide range, it can be considered that the user equipment and the base station have reached the time-frequency synchronization.

Optionally, the network device may broadcast its own ID (IDentity) information to other devices, so that the user equipment obtains the ID information of the network device, and the user equipment may also send the ID information of the user equipment to the base station through a response message.

303. The network device sends configuration information to the user equipment.

The configuration information is used to indicate that the network device sends scheduling signaling to the user equipment on the first time-frequency resource. Through the configuration information, the user equipment can determine the time-frequency region in which the base station sends the scheduling signaling, that is, the first region.

304. The network device determines the first time-frequency resource.

The first time-frequency resource is used for the transmission of the uplink data, the first time-frequency resource is a time-frequency resource in the first area, and the first area is a part of the time-frequency resource available to the network device. Preferably, the time-frequency resource in the first area may have three cases: First, the time-frequency resource in the first area is a subframe in the first area, for example, the network device normally

40 sub-frames are sent for 40 milliseconds. When only the time-frequency resources in the first area are turned on, the network device transmits 5 subframes every 40 milliseconds. The second time-frequency resource in the first area is a physical resource block (PRB) in the first area. For example, the bandwidth of the network device is normally 50 physical resource blocks, and only the first area is opened. When the time-frequency resource is used, the network device only opens the bandwidth of the six physical resource blocks. Third, the time-frequency resource in the first region is an OFDM (Orthogonal Frequency Division Multiplexing) symbol. For example, the network device sends one subframe every millisecond, and each subframe includes 12 or 14 OFDM symbols. When only the time-frequency resources in the first area are opened, only three OFDM symbols are opened in one subframe, and information is transmitted on the opened OFDM symbol.

305. The network device sends scheduling signaling to the user equipment on the first time-frequency resource. The scheduling signaling is used to indicate a time-frequency resource range of the first area, and the scheduling signaling is only transmitted on the first time-frequency resource.

306. The user equipment sends uplink data to the network device on the first time-frequency resource. Specifically, after receiving the scheduling signaling, the user equipment acquires the information of the first time-frequency resource according to the scheduling signaling, so as to send the uplink data to the network device on the first time-frequency resource.

307. The network device sends feedback information to the user equipment on the first time-frequency resource. The feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not correctly receive the uplink data. Optionally, the feedback information may be an acknowledgement ACK message/non-acknowledgement NACK message. Further, the ACK information is used to indicate that the network device correctly receives the uplink data, and the NACK information is used to indicate that the network device does not correctly receive the uplink data.

When the user transmits uplink data to the base station, the base station only needs to send tens of bits (bits) of scheduling signaling or l - 2 bit (bit) acknowledgment information, because a small amount of signaling keeps the base station in a continuous working state and increases the work of the base station. The base station also needs to transmit a Cell Specific Reference Signal (CRS) and uses a Physical Layer Control Channel Indication Channel (Physical Control Filed Indication Channel, The information transmission method provided by the embodiment of the present invention transmits the scheduling signaling and the acknowledgment information on the first time-frequency resource by the base station, thereby preventing the base station from continuing to work, reducing the power consumption of the base station, and reducing The interference to other base stations and the time-frequency synchronization by finding the reference signals also ensure the quality of the data transmission.

With reference to the embodiment corresponding to FIG. 1 above, an embodiment of the present invention provides a network device for performing the information transmission method described in the foregoing embodiment corresponding to FIG. 1. Referring to FIG. 5, the network device 501 includes management. The unit 501 1 , the transmitting unit 5012 and the receiving unit 5013.

The management unit is configured to determine a first time-frequency resource, where the first time-frequency resource is used for uplink data transmission, and the first time-frequency resource is a time-frequency resource in the first area, where the first area is available to the network device. Part of the frequency resource.

The sending unit 5012 is configured to send scheduling signaling to the user equipment on the first time-frequency resource determined by the management unit 5011, where the scheduling signaling is used to indicate the time-frequency resource range of the first area, and the scheduling signaling is only at the first time. Transmission on frequency resources.

The receiving unit 5013 is configured to receive uplink data sent by the user equipment on the first time-frequency resource.

Optionally, the sending unit 5012 is further configured to send configuration information to the user equipment, where the configuration information is used to instruct the network device to send the scheduling signaling to the user equipment on the first time-frequency resource.

Optionally, the sending unit 5012 is further configured to send the first reference signal to the user equipment according to the preset parameter, where the first reference signal is used for time-frequency synchronization between the user equipment and the network device, where the preset parameter includes At least one of a transmission period of a reference signal, a length of time during which the first reference signal continues for one period, and a number of physical resource units occupied by transmitting the first reference signal.

Further optionally, the first reference signal is a discovery reference signal.

Optionally, the management unit 501 1 is further configured to generate a preset parameter.

The sending unit 5012 is further configured to send the preset parameter generated by the management unit 501 1 to the user equipment.

Optionally, the first time-frequency resource includes a subframe in the first area, and objects in the first area. The resource block, at least one of orthogonal frequency division multiplexing OFDM symbols in the first region. Optionally, the sending unit 5012 is further configured to send feedback information to the user equipment on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not correctly receive the uplink data. .

Further optionally, the feedback information is an acknowledgement ACK message/non-acknowledgement NACK message. The network device provided by the embodiment of the present invention, when the user transmits uplink data to the network device, the network device only needs to send tens of bits (bits) of scheduling signaling or 1-2 bit (bit) acknowledgment information, because a small amount of signaling Keeping the network device in a continuous working state increases the power consumption of the network device, and the network device also needs to send a Cell Specific Reference Signal (CRS) and use a physical layer control channel format indication channel (Physical Control Filed Indication Channel). The PCFICH can cause interference to other network devices. The information transmission method provided by the embodiment of the present invention sends the scheduling signaling and the acknowledgement information on the first time-frequency resource through the network device, so as to prevent the network device from continuing to work and reduce the network. The power consumption of the device reduces the interference to other network devices, and the time-frequency synchronization is realized by finding the reference signal, and the quality of the data transmission is also guaranteed.

With reference to the embodiment corresponding to FIG. 2 above, an embodiment of the present invention provides a user equipment, which is used to perform the information transmission method described in the foregoing embodiment corresponding to FIG. 2. Referring to FIG. 6, the user equipment 601 includes receiving. Unit 601 1 and transmitting unit 6012.

The receiving unit 601 1 is configured to receive scheduling signaling that is sent by the network device on the first time-frequency resource, where the scheduling signaling is used to indicate a time-frequency resource range of the first area, where the first area is available to the network device. A part of the time-frequency resource, the first time-frequency resource is used for transmission of uplink data, and the scheduling signaling is transmitted only on the first time-frequency resource.

The sending unit 6012 is configured to send uplink data to the network device on the first time-frequency resource.

Optionally, the receiving unit 601 1 is further configured to receive configuration information sent by the network device, where the configuration information is used to instruct the network device to send scheduling signaling to the user equipment on the first time-frequency resource.

Optionally, the receiving unit 601 1 is further configured to receive, according to the preset parameter, a first reference signal sent by the network device, where the first reference signal is used by the user equipment and the The time-frequency synchronization between the network devices, where the preset parameter includes a transmission period of the first reference signal, a duration of the first reference signal in a period, and the first reference signal is sent once. At least one of the number of physical resource units occupied.

Further optionally, the first reference signal is a discovery reference signal.

Optionally, the receiving unit 601 1 is further configured to receive a preset parameter sent by the network device. Optionally, the first time-frequency resource includes at least one of a subframe in the first region, a physical resource block in the first region, and an orthogonal frequency division multiplexing OFDM symbol in the first region.

Optionally, the receiving unit 601 1 is further configured to receive the feedback information sent by the network device on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not receive the network device correctly. Upstream data.

Further optionally, the feedback information is an acknowledgement ACK/non-acknowledgement NACK message.

When the user equipment transmits uplink data to the network device, the network device does not need to be completely opened, and can be kept in a closed state. The network device is closed in a relative sense, not the network. The device stops working completely, but the network device in the closed state does not continue to work when compared with the network device to open the data transmission. The network device in the closed state only opens part of the time-frequency resource, that is, the time-frequency resource in the first region. The user equipment receives the scheduling signaling on the time-frequency resource in the first area, so that when the user equipment performs uplink data transmission on the network device, the network device does not continue to work, and does not open some time-frequency resources, thereby reducing the network device. Power consumption and reduced interference to other network devices. Optionally, the uplink receiving module of the network device can be always turned on, because the receiving module has less power consumption relative to the transmitting module and does not cause network interference, so it can be always turned on.

In conjunction with the embodiment corresponding to FIG. 1 above, another embodiment of the present invention provides a network device 7001. Referring to FIG. 7, the device may be embedded or itself a micro-processing computer, such as: a general-purpose computer, a customized computer, and a mobile phone. A portable device such as a terminal or a tablet, the network device 7001 includes: at least one processor 701 1 , a memory 7012 , a bus 7013 , and a transmitter 7014 and a receiver 7015 , the at least one processor 701 1 , the memory 7012 , the transmitter 7014 , and The receivers 7015 are connected by a bus 7013 and complete communication with each other. The bus 7013 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 7013 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus. among them:

The memory 7012 is for executing application code of the inventive scheme, and the application code for executing the inventive scheme is stored in a memory and controlled by the processor 701 1 for execution.

The memory can be a read only memory ROM or other type of static storage device that can store static information and instructions, a random access memory RAM or other type of dynamic storage device that can store information and instructions, or can be electrically erasable or programmable. Read-only memory EEPROM, CD-ROM or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used Any other medium that carries or stores the desired program code in the form of an instruction or data structure and that can be accessed by a computer, but is not limited thereto. These memories are connected to the processor via a bus.

The processor 701 1 may be a central processing unit (CPU 1301), or an application specific integrated circuit (ASIC), or one configured to implement the embodiment of the present invention. Or multiple integrated circuits.

The processor 701 1 is configured to call the program code in the memory 7012. In a possible implementation manner, when the application is executed by the processor 701 1 , the following functions are implemented.

The processor is configured to determine a first time-frequency resource, where the first time-frequency resource is used for uplink data transmission, and the first time-frequency resource is a time-frequency resource in the first area, where the first area is available to the network device. Part of the frequency resource.

The transmitter 7014 is configured to send scheduling signaling to the user equipment on the first time-frequency resource determined by the processor, where the scheduling signaling is used to indicate a time-frequency resource range of the first area, and the scheduling signaling is only in the first time-frequency resource. Transfer on. The receiver 7015 is configured to receive uplink data sent by the user equipment on the first time-frequency resource.

Optionally, the sender 7014 is further configured to send configuration information to the user equipment, where the configuration information is used to instruct the network device to send scheduling signaling to the user equipment on the first time-frequency resource.

Further optionally, the first reference signal is a discovery reference signal.

Optionally, the processor is further configured to generate a preset parameter.

The transmitter 7014 is further configured to send the preset parameters generated by the processor to the user equipment. Optionally, the first time-frequency resource includes at least one of a subframe in the first region, a physical resource block in the first region, and an orthogonal frequency division multiplexing OFDM symbol in the first region.

Optionally, the sender 7014 is further configured to send feedback information to the user equipment on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not correctly receive the uplink data. .

In conjunction with the embodiment corresponding to FIG. 2 above, another embodiment of the present invention provides a user equipment 8001. Referring to FIG. 8, the device may be embedded or itself a microprocessor computer, such as a general-purpose computer, a customized computer, or a mobile phone. A portable device such as a terminal or a tablet, the user device 8001 includes: at least one processor 801 1 , a memory 8012 , a bus 8013 , and a receiver 8014 and a transmitter 8015 , the at least one processor 801 1 , the memory 8012 , the receiver 8014 , and Transmitter 8015 connects and completes communication with each other via bus 8013. The bus 8013 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 8013 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus. among them:

The memory 8012 is for executing application code of the inventive scheme, and the application code for executing the inventive scheme is stored in a memory and controlled by the processor 801 1 for execution.

The processor 801 1 may be a central processing unit (Central Processing Unit, hereinafter referred to as CPU), or an Application Specific Integrated Circuit (ASIC), or one configured to implement the embodiment of the present invention. Or multiple integrated circuits.

The processor 801 1 is configured to call the program code in the memory 8012. In a possible implementation manner, when the application is executed by the processor 801 1 , the following functions are implemented.

The receiver 8014 is configured to receive scheduling signaling sent by the network device on the first time-frequency resource, where the scheduling signaling is used to indicate a time-frequency resource range of the first area, where the first area is available to the network device. A part of the frequency resource, the first time-frequency resource is used for transmission of uplink data, and the scheduling signaling is transmitted only on the first time-frequency resource.

The sender 8015 is configured to send uplink data to the network device on the first time-frequency resource. Optionally, the receiver 8014 is further configured to receive configuration information sent by the network device, where The configuration information is used to instruct the network device to send scheduling signaling to the user equipment on the first time-frequency resource.

Optionally, the receiver 8014 is further configured to receive, according to the preset parameter, a first reference signal sent by the network device, where the first reference signal is used for time-frequency synchronization between the user equipment and the network device. The preset parameter includes a sending period of the first reference signal, a length of time during which the first reference signal continues in one period, and a quantity of physical resource units occupied by sending the first reference signal once At least one of them. Further optionally, the first reference signal is a discovery reference signal.

Optionally, the receiver 8014 is further configured to receive a preset parameter sent by the network device. Optionally, the first time-frequency resource includes at least one of a subframe in the first region, a physical resource block in the first region, and an orthogonal frequency division multiplexing OFDM symbol in the first region.

Optionally, the receiver 8014 is further configured to receive the feedback information sent by the network device on the first time-frequency resource, where the feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not correctly receive the uplink. data.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the above functions may be stored in a computer readable medium or as One or more instructions or code on the computer readable medium are transmitted. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. For example, but not limited to: the computer readable medium may include RAM (Random Access Memory), ROM (Read Only Memory), and EEPROM (Electrically Erasable Programmable Read Only Memory). Read memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, disk storage media or other magnetic storage device, or can be used to carry or store desired programs in the form of instructions or data structures. Code and any other medium that can be accessed by a computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, DSL (Digital Subscriber Line), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium. As used in the present invention, the disc and the disc include a CD (Compact Disc), a laser disc, a disc, a DVD disc (Digital Versatile Disc), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, The disc uses a laser to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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

Claims

Claim

A method for transmitting information, which is applied to a user equipment to transmit uplink data to a network device, including:

Sending scheduling signaling to the user equipment on the first time-frequency resource, where the scheduling signaling is used to indicate a time-frequency resource range of the first area, where the scheduling signaling is only in the first time-frequency resource Transfer

Receiving, by the user equipment, the uplink data sent on the first time-frequency resource.

The method according to claim 1, wherein before the network device sends the scheduling signaling to the user equipment on the first time-frequency resource, the method further includes:

The method according to claim 1 or 2, wherein, before the sending, by the network device, the scheduling signaling to the user equipment on the first time-frequency resource, the method further includes: according to the preset parameter, The user equipment sends a first reference signal, where the first reference signal is used for time-frequency synchronization between the user equipment and the network device, where the preset parameter includes a sending period of the first reference signal, At least one of a duration of the first reference signal and a number of physical resource units occupied by the first reference signal in one cycle.

4. The method of claim 3, wherein

The first reference signal is a discovery reference signal.

The method according to claim 3 or 4, wherein before the sending the first reference signal to the user equipment, the method further includes:

Generating the preset parameter;

Sending the preset parameter to the user equipment.

6. A method according to any one of claims 1 - 5, characterized in that

The first time-frequency resource includes a subframe in the first area, and the first area a physical resource block, at least one of orthogonal frequency division multiplexing OFDM symbols in the first region.

The method according to any one of claims 1 to 6, wherein, after receiving the uplink data sent by the user equipment on the first time-frequency resource, the method further includes:

8. The method of claim 7 wherein:

The method according to claim 9, wherein before the receiving, by the network device, the scheduling signaling sent by the first time-frequency resource, the method further includes:

The method according to claim 9 or 10, wherein, before the receiving, by the network device, the scheduling signaling sent by the first time-frequency resource, the method further includes:

12. The method of claim 9 wherein: The first reference signal is a discovery reference signal.

The method according to claim 11 or 12, wherein before the receiving the first reference signal sent by the network device, the method further includes:

Receiving the preset parameter sent by the network device.

The method according to any one of claims 9 to 13, wherein the first time-frequency resource comprises a subframe in the first area, a physical resource block in the first area, and a At least one of orthogonal frequency division multiplexing OFDM symbols within the first region.

The method according to any one of claims 9 to 14, wherein after the sending the uplink data to the network device on the first time-frequency resource, the method further includes:

16. The method of claim 15 wherein:

A network device, comprising: a processor, a memory, a transmitter, a receiver, and a bus, wherein the processor, the memory, the transmitter, and the receiver are connected to each other through the bus ;

And a receiver, configured to receive the uplink data that is sent by the user equipment on the first time-frequency resource.

18. Apparatus according to claim 17 wherein:

The transmitter is further configured to send configuration information to the user equipment, where the configuration information is The information is used to indicate that the network device sends the scheduling signaling to the user equipment on the first time-frequency resource.

19. Apparatus according to claim 17 or 18, characterized in that

20. Apparatus according to claim 19, wherein

The first reference signal is a discovery reference signal.

21. Apparatus according to claim 19 or claim 20 wherein:

The processor is further configured to generate the preset parameter;

The device according to any one of claims 17 to 21, wherein the first time-frequency resource includes a subframe in the first area, a physical resource block in the first area, and a At least one of orthogonal frequency division multiplexing OFDM symbols within the first region.

The device according to any one of claims 17 to 22, wherein the transmitter is further configured to send feedback information, the feedback information, to the user equipment on the first time-frequency resource. And configured to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not correctly receive the uplink data.

24. Apparatus according to claim 23 wherein:

25. A user equipment, comprising: a processor, a memory, a transmitter, a receiver, and a bus, wherein the processor, the memory, the transmitter, and the receiver are connected to each other through the bus ;

a receiver, configured to receive a scheduling message sent by the network device on a first time-frequency resource The scheduling information is used to indicate a time-frequency resource range of the first area, where the first area is part of a time-frequency resource available to the network device, and the first time-frequency resource is used for uplink data. And transmitting, by the transmitter, the uplink data to the network device on the first time-frequency resource.

26. Apparatus according to claim 25 wherein:

27. Apparatus according to claim 25 or claim 26 wherein:

28. Apparatus according to claim 27, wherein

The first reference signal is a discovery reference signal.

29. Apparatus according to claim 27 or claim 28 wherein:

The receiver is further configured to receive the preset parameter sent by the network device.

The device according to any one of claims 25 to 29, wherein the first time-frequency resource includes a subframe in the first area, a physical resource block in the first area, and a At least one of orthogonal frequency division multiplexing OFDM symbols within the first region.

The device according to any one of claims 25-30, wherein the receiver is further configured to receive feedback information sent by the network device on the first time-frequency resource, where The feedback information is used to indicate that the network device correctly receives the uplink data or the feedback information is used to indicate that the network device does not correctly receive the uplink data.

32. Apparatus according to claim 31 wherein: The feedback information is acknowledgement ACK/non-acknowledgement NACK information.