CN108347777B

CN108347777B - Data transmission method, device, network side and terminal

Info

Publication number: CN108347777B
Application number: CN201710061312.7A
Authority: CN
Inventors: 寇帅华; 刘星; 郝鹏; 毕峰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-01-25
Filing date: 2017-01-25
Publication date: 2023-08-01
Anticipated expiration: 2037-01-25
Also published as: WO2018137401A1; CN108347777A

Abstract

The embodiment of the invention discloses a data transmission method, which is characterized in that an uplink reference signal is received on an uplink reference signal resource, wherein the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used for indicating whether a network side receives an uplink scheduling request or not; and transmitting downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource. The embodiment of the invention also discloses a data transmitting device, a network side and a terminal.

Description

Data transmission method, device, network side and terminal

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a data sending method, a data sending device, a network side, and a terminal.

Background

With the continuous progress of radio technologies, various radio services are largely emerging, and spectrum resources supported by the radio services are limited, so that the situation that spectrum resources between 300MHz and 3GHz mainly used by traditional commercial communication are extremely tight is faced to the continuous increase of bandwidth requirements of people, and the requirements of future wireless communication cannot be met.

In future wireless communications, communications will be extended to support higher carrier frequencies than those employed by fourth generation (4G) communications systems, such as 28GHz, 45GHz, etc., with the potential operating band of the 5G New RAT (NR) system reaching 100GHz. In the high frequency band (> 6 GHz), since attenuation of electromagnetic waves is large, a beam forming method is generally required to increase transmission distance, which makes coverage angle of the beam small. And because the number of radio frequency links of the base station is limited, the number of beams which can be transmitted simultaneously is limited, and the transmission and the connection are required to be carried out in a rotary transmission mode, so that the coverage of 360 degrees or 120 degrees is realized. In general, for a newly accessed or idle UE (User Equipment), when accessing a system, an optimal transmit beam and a receive beam of each UE side and a network side need to be obtained in a scanning manner, however, such beam scanning also reduces resource utilization.

The traffic types supported by NR are currently classified into three categories, ultra reliable low latency communication (URLLC, ultra-Reliable and Low Latency Communications), enhanced mobile broadband (emmbb, enhanced Mobile Broadband), mass machine type communication (mctc, massive Machine type communications). The requirements of different services are different, for example, the requirement of the URLLC service is high in reliability and low in delay (the user delay is 0.5 ms), while mctc emphasizes the number of terminals to be supported, consumes less power, and has no high requirements on reliability and delay. In order to be able to support these flexible and versatile services, a new UE state, namely rrc_inactive state, is introduced in the NR, which can be seen as a state intermediate between the UE idle state and the connected state in long term evolution (LTE, long Term Evolution). In this state, the UE remains in the power saving mode, there is little signaling interaction with the network side, but the network side still needs to track the UE, knows which cell the UE is currently located in and the best service transmission of the UE also receives the node (TRP, transmission and Receive Point), and supports small data volume uplink and downlink transmissions. To enable the network side to track the UE, the UE periodically sends some reference signals. In general, for example, in LTE, to perform uplink data, a UE needs to first access a network and then start some flows of uplink data transmission, where delay itself is relatively large, and in NR, due to beam scanning, the access delay is more obvious, which obviously cannot meet the requirements of services in NR, especially those of URLLC services.

Disclosure of Invention

In order to solve the existing technical problems, the embodiment of the invention provides a data sending method, a data sending device, a network side and a terminal, which can reduce delay, realize fast scheduling of uplink service, reduce resource waste fed back by the network side and improve resource utilization rate.

In order to achieve the above object, the technical solution of the embodiment of the present invention is as follows:

the embodiment of the invention provides a data transmission method, which comprises the following steps:

receiving an uplink reference signal on an uplink reference signal resource, wherein the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used for indicating whether a network side receives an uplink scheduling request or not;

and transmitting downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, the uplink reference signal resource and the downlink feedback resource are preconfigured, and a corresponding relation exists between the uplink reference signal resource and the downlink feedback resource.

Further, when the uplink scheduling request indication information indicates that the network side receives the uplink scheduling request, the downlink feedback at least includes timing advance information.

Further, when the uplink scheduling request indication information indicates that the network side does not receive the uplink scheduling request, the downlink feedback includes a receiving feedback that the network side receives the uplink reference signal.

Further, when the network side sends downlink feedback in a directional beam mode and the terminal does not have reciprocity, the downlink feedback at least includes: and transmitting beam information of the terminal.

Further, the method further comprises: and configuring a receiving beam strategy for the terminal according to the reciprocity characteristics of the network side and the terminal.

Further, the uplink scheduling request indication information includes a display indication or an implicit indication.

Further, the downlink feedback further includes: and the uplink scheduling or uplink scheduling resource indicating information is used for indicating the position of the uplink scheduling resource.

Further, when the network side does not have reciprocity, after the downlink feedback is sent on the downlink feedback resource corresponding to the uplink reference signal resource, the method further includes:

and receiving uplink feedback at a position corresponding to the downlink feedback, and sending uplink scheduling.

Further, the sending downlink feedback on the downlink feedback resource corresponding to the uplink reference signal resource includes:

and when the network side does not have reciprocity, transmitting downlink feedback on the downlink feedback resource in a beam scanning mode.

and when the network has reciprocity, the downlink feedback is sent on the downlink feedback resource by using a first sending beam at the network side, wherein the first sending beam at the network side is a sending beam corresponding to a receiving beam with the strongest signal strength in the uplink reference signal received by the network side.

Further, the method further comprises:

and when the downlink feedback comprises the uplink scheduling resource indication information, sending the uplink scheduling on the resource indicated by the uplink scheduling resource indication information.

Further, the method further comprises:

and transmitting the uplink scheduling in a subframe/time slot after the downlink feedback is transmitted.

Further, the receiving the uplink feedback at the position corresponding to the downlink feedback, and sending the uplink scheduling, includes:

Receiving uplink feedback on resources corresponding to the downlink feedback, wherein the uplink feedback comprises transmitting beam information of a network side;

and transmitting the uplink scheduling by using a transmitting beam of the network side in the uplink feedback.

Further, the method further comprises:

and receiving uplink data on the resources indicated by the uplink scheduling.

transmitting an uplink reference signal on the configured uplink reference signal resource, wherein the uplink reference signal carries uplink scheduling request indication information;

and receiving downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, when the terminal does not send uplink data, the uplink scheduling request indication information indicates that the terminal does not have an uplink scheduling request; when the terminal has uplink data to send, the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request.

Further, when the uplink scheduling request indication information indicates that the terminal does not have an uplink scheduling request, the downlink feedback includes a receiving feedback of the uplink reference signal.

Further, when the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request, the downlink feedback at least includes timing advance information.

Further, when the terminal transmits the uplink reference signal in a directional beam, the transmitting the uplink reference signal on the configured uplink reference signal resource, and receiving the downlink feedback on the downlink feedback resource corresponding to the uplink reference signal resource, includes:

transmitting the uplink reference signal on the configured uplink reference signal resource in a beam scanning mode, and receiving downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource according to a configured receiving beam strategy, wherein when the terminal does not have reciprocity, the downlink feedback at least comprises: and the transmitting beam information of the terminal is used for indicating the transmitting beam of the terminal, and when the terminal has reciprocity, the transmitting beam of the terminal is determined according to the corresponding relation between the uplink reference signal resource and the downlink feedback resource.

Further, the downlink feedback further includes: uplink scheduling or uplink scheduling resource indication information, where the uplink scheduling resource indication information is used to indicate a position of the uplink scheduling resource.

Further, the method further comprises: and when the downlink feedback comprises uplink scheduling resource indication information, receiving uplink scheduling on resources indicated by the uplink scheduling resource indication information.

Further, the method further comprises: and receiving uplink scheduling on the subframe/time slot after the downlink feedback is sent.

Further, when the network side does not have reciprocity, after receiving the downlink feedback on the downlink feedback resource corresponding to the uplink reference signal resource, the method further includes:

and sending uplink feedback and receiving uplink scheduling.

Further, the sending uplink feedback includes:

and transmitting uplink feedback by using the transmitting beam of the terminal configured by the network side, wherein the uplink feedback carries transmitting beam information of the network side.

Further, the receiving uplink scheduling includes:

and receiving uplink scheduling on the subframe/time slot after the uplink feedback is sent.

Further, the method further comprises: and sending the uplink data according to uplink scheduling.

The embodiment of the invention provides a data transmitting device, which comprises: a first receiving unit, a first transmitting unit, wherein,

The first receiving unit is configured to receive an uplink reference signal on an uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used to indicate whether a network side receives an uplink scheduling request;

the first sending unit is configured to send downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, the apparatus further comprises: the configuration unit is configured to pre-configure the uplink reference signal resource and the downlink feedback resource, where a correspondence exists between the uplink reference signal resource and the downlink feedback resource.

Further, the downlink feedback further includes: uplink scheduling or uplink scheduling resource indication information, wherein the uplink scheduling resource indication information is used for indicating the position of uplink scheduling resources.

Further, the first receiving unit is further configured to receive uplink feedback at a location corresponding to the downlink feedback when the network side does not have reciprocity;

the first sending unit is further configured to send uplink scheduling.

Further, when the network side has reciprocity, the first transmitting unit is further configured to transmit downlink feedback on the downlink feedback resource in a beam scanning manner, where the first transmitting beam on the network side is a transmitting beam corresponding to a receiving beam with the strongest signal strength in the uplink reference signal received by the network side.

Further, the first sending unit is further configured to send the uplink schedule in a subframe/slot after sending the downlink feedback.

The embodiment of the invention provides a data transmitting device, which comprises: a second transmitting unit, a second receiving unit, wherein,

the second sending unit is configured to send an uplink reference signal on the configured uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information;

the second receiving unit is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, when the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request, the downlink feedback at least includes: timing advance information.

Further, when the terminal transmits the uplink reference signal in a directional beam, the second transmitting unit is configured to transmit the uplink reference signal in a beam scanning manner on the configured uplink reference signal resource;

the second receiving unit is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource according to a configured receiving beam policy, where when the terminal does not have reciprocity, the downlink feedback at least includes: and the transmitting beam information of the terminal is used for indicating the transmitting beam of the terminal, and when the terminal has reciprocity, the transmitting beam of the terminal is determined according to the corresponding relation between the uplink reference signal resource and the downlink feedback resource.

The embodiment of the invention provides a network side, which comprises: a receiver, a transmitter, wherein,

The receiver is configured to receive an uplink reference signal on an uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used to indicate whether the network side receives an uplink scheduling request;

the transmitter is configured to send downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, the network side further includes: and the processor is used for pre-configuring the uplink reference signal resource and the downlink feedback resource, wherein a corresponding relation exists between the uplink reference signal resource and the downlink feedback resource.

Further, the receiver is further configured to receive uplink feedback at a location corresponding to the downlink feedback when the network side does not have reciprocity;

The transmitter is further configured to transmit an uplink schedule.

Further, when the network side has reciprocity, the transmitter is further configured to send downlink feedback on the downlink feedback resource in a beam scanning manner, where the first transmission beam on the network side is a transmission beam corresponding to a reception beam with the strongest signal strength in the uplink reference signal received by the network side.

The embodiment of the invention provides a terminal, which comprises: a transmitter, a receiver, wherein,

the transmitter is configured to transmit an uplink reference signal on a configured uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information;

the receiver is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, when the uplink scheduling request indication information indicates that the terminal does not have an uplink scheduling request, the downlink feedback includes a receiving feedback of the uplink reference signal; when the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request, the downlink feedback at least includes: timing advance information.

Further, when the terminal transmits an uplink reference signal in a directional beam, the transmitter is configured to transmit the uplink reference signal in a beam scanning manner on a configured uplink reference signal resource;

The receiver is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource according to a configured receiving beam policy, where when the terminal does not have reciprocity, the downlink feedback at least includes: and the transmitting beam information of the terminal is used for indicating the transmitting beam of the terminal, and when the terminal has reciprocity, the transmitting beam of the terminal is determined according to the corresponding relation between the uplink reference signal resource and the downlink feedback resource.

The embodiment of the invention provides a data sending method, a data sending device, a network side and a terminal, wherein an uplink reference signal is received on an uplink reference signal resource, the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used for indicating whether the network side receives an uplink scheduling request or not; and transmitting downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource. The data transmission method, the device, the network side and the terminal provided by the embodiment of the invention not only can reduce the resources used by the network side for feedback and improve the utilization rate of the resources, but also can realize quick scheduling and reduce the delay of uplink data transmission.

Drawings

In the drawings (which are not necessarily drawn to scale), like numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different instances of similar components. The drawings illustrate generally, by way of example and not by way of limitation, various embodiments discussed herein.

Fig. 1 is a schematic flow chart of a data transmission method according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating an example of a scheduling request indication provided in an embodiment of the present invention;

fig. 3 is a diagram illustrating an example of a beam transmission manner according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an example of a beam transmission manner according to an embodiment of the present invention;

fig. 5 is a third exemplary diagram of a beam transmission manner according to an embodiment of the present invention;

fig. 6 is a diagram illustrating an example of a beam transmission manner according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a flow chart of a data transmission method according to an embodiment of the present invention;

fig. 8 is a schematic flow chart III of a data transmission method according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a flow chart of a data transmission method according to an embodiment of the present invention;

fig. 10 is a schematic flow chart of a data transmission method according to an embodiment of the present invention;

fig. 11 is a flowchart of a data transmission method according to an embodiment of the present invention;

Fig. 12 is a schematic diagram of a flow chart of a data transmission method according to an embodiment of the present invention;

fig. 13 is a schematic flowchart eight of a data transmission method according to an embodiment of the present invention;

fig. 14 is a flowchart of a data transmission method according to an embodiment of the present invention;

fig. 15 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;

fig. 16 is a flowchart of a data transmission method according to an embodiment of the present invention;

fig. 17 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;

fig. 18 is a schematic diagram of a data transmission device according to an embodiment of the present invention;

fig. 19 is a schematic diagram of a second data transmission device according to an embodiment of the present invention;

fig. 20 is a schematic diagram III of a data transmission device according to an embodiment of the present invention;

fig. 21 is a schematic diagram of a network side structure according to an embodiment of the present invention;

fig. 22 is a second schematic diagram of a network side structure according to an embodiment of the present invention;

fig. 23 is a schematic diagram of a terminal structure according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It should be noted that, the network side entity may include a base station, an evolved node b (e-NodeB), a gNB, a relay station, and the like, and the terminal entity includes a user equipment such as a mobile phone, an intelligent watch, and a wearable device. In the following examples, the network side represents a network side entity, and the UE represents a terminal side entity.

Example 1

An embodiment of the present invention provides a data transmission method, as shown in fig. 1, where the method may include:

step 101, receiving an uplink reference signal on an uplink reference signal resource.

The uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used for indicating whether the network side receives an uplink scheduling request.

The execution body of the data transmission method provided by the embodiment of the invention can be a data transmission device, and the data transmission device can be specifically a network side, namely the network side receives an uplink reference signal on an uplink reference signal resource.

The time domain resource of the uplink reference signal is predefined by a system or configured by a network side, and is consistent at least in a certain area.

Specifically, the uplink scheduling request indication information includes a display indication or an implicit indication. Wherein, the explicit indication refers to carrying uplink scheduling request information in the uplink reference signal. The implicit indication means that the uplink scheduling request is implicitly indicated through information such as resource position, sequence selection, cyclic shift, scrambling mode and the like of the uplink reference signal. Wherein, displaying the indication may also be understood as displaying the carrying, and implicit indication may also be understood as implicitly carrying.

Exemplary, the implicit indication of the scheduling request by the uplink reference signal may be achieved by a resource location, a reference signal sequence, a sequence cyclic shiftThe difference of the bit or the scrambling sequence is used for indicating, and the network side judges according to the received uplink reference signal. The scheduling request is implicitly indicated by the resource location, as shown in fig. 2 a, the whole resource block is divided into two parts, which are respectively indicated by resource blocks 1 and 2, the uplink reference signal indicates that the terminal UE has no scheduling request when sent on resource block 1, and the uplink reference signal indicates that the UE has a scheduling request when sent on resource block 2. Implicit indication of scheduling request by reference signal sequence, sequence x, as shown in figure 2 b ₁ ，x ₂ ，…，x _n And sequence y ₁ ，y ₂ ，…，y _n Can be used for uplink reference signals and the sequence x ₁ ，x ₂ ，…，x _n Indicating that the UE has a scheduling request, sequence y ₁ ，y ₂ ，…，y _n Indicating that the UE has no scheduling request. Implicit indication of scheduling request by cyclic shift of sequence, sequence x, as shown in figure 2 c ₁ ，x ₂ ，…，x _n And cyclic shift x ₃ ，x ₄ ，…，x ₂ Can be used for uplink reference signals and the sequence x ₁ ，x ₂ ，…，x _n Indicating that the UE has a scheduling request, cyclic shift sequence x ₃ ，x ₄ ，…，x ₂ Indicating that the UE has no scheduling request. The scheduling request is implicitly indicated by the difference of scrambling sequences, as shown in the d diagram of fig. 2, the sequence X (n) has two scrambling modes, wherein the first scrambling mode is used for indicating that the UE has the scheduling request, and the second scrambling mode is used for indicating that the UE has no scheduling request. Thus, the terminal UE selects the corresponding transmission resource, sequence or scrambling mode according to whether the terminal UE has the scheduling request or not, and the network side can judge whether the UE has the scheduling request or not according to the same method.

Here, the network side may pre-configure the uplink reference signal resource, and the network side may pre-configure the downlink feedback resource, where a correspondence exists between the uplink reference signal resource and the downlink feedback resource.

The corresponding relation exists between the uplink reference signal and the corresponding downlink feedback time domain resource. When the network side configures the resources of the uplink reference signals for the UE, the corresponding relations between the uplink reference signals and the time domain resources fed back by the uplink reference signals are configured at the same time, and the UE and the network side send or receive signals according to the corresponding relations.

As shown in fig. 3, the terminal UE has two transmit beams and two receive beams, respectively, denoted by 1 and 2. The network side gNB has three receiving beams and three transmitting beams, which are respectively denoted by a, b and c. The corresponding relation between the uplink reference signal resources 1-6 and the feedback resources 7-12 is 1 corresponding to 7,2 corresponding to 8, …, and so on, and 6 corresponding to 12. And the UE is configured to employ the same transmit beam on resources 1,3,5 and the UE is configured to employ the same transmit beam on resources 2,4, 6. The transmit beam and the receive beam of the UE on the resources with correspondence are in the same direction.

Step 102, sending downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

In a possible implementation manner, when the uplink scheduling request indication information indicates that the network side receives an uplink scheduling request, the downlink feedback at least includes timing advance information.

In a possible implementation manner, when the uplink scheduling request indication information indicates that the network side does not receive an uplink scheduling request, the downlink feedback includes a receiving feedback that the network side receives the uplink reference signal.

Optionally, when the network side sends downlink feedback in a directional beam manner and the terminal does not have reciprocity, the downlink feedback at least includes: and transmitting beam information of the terminal.

Optionally, when the network side sends the downlink feedback in an omni-directional beam manner and the terminal sends the uplink reference signal in an omni-directional beam manner, the uplink reference signal and the downlink feedback may not include the information of the terminal and the transmitting beam of the network side.

Optionally, the downlink feedback further includes: uplink scheduling or uplink scheduling resource indication information, wherein the uplink scheduling resource indication information is used for indicating the position of uplink scheduling resources.

Optionally, when the network side does not have reciprocity, after the downlink feedback is sent on the downlink feedback resource corresponding to the uplink reference signal resource, the method further includes:

Optionally, the method further comprises: and when the downlink feedback comprises the uplink scheduling resource indication information, sending the uplink scheduling on the resource indicated by the uplink scheduling resource indication information.

In a possible implementation manner, the sending downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource includes:

and when the network has reciprocity, transmitting downlink feedback on the downlink feedback resource in a beam scanning mode, wherein the first transmitting beam at the network side is a transmitting beam corresponding to the receiving beam with the strongest signal strength in the uplink reference signal received by the network side.

Optionally, the method further comprises: and transmitting the uplink scheduling in a subframe/time slot after the downlink feedback is transmitted.

Optionally, the method further comprises: and receiving uplink data on the resources indicated by the uplink scheduling.

Further, the method may further include: and configuring a receiving beam strategy for the terminal according to the reciprocity characteristics of the network side and the terminal.

When the UE side and the network side do not have reciprocity, as shown in fig. 3, exemplarily, on an uplink reference signal resource, the UE sends an uplink reference signal in a scanning manner, the network side gNB also receives the uplink reference signal in a scanning manner, and after the uplink reference signal is sent, the network side may determine an optimal receiving beam of the network side and an optimal transmitting beam of the UE, or resources corresponding to the optimal receiving beam of the network side and the optimal transmitting beam of the UE, where the optimal receiving beam of the network side is a receiving beam with the strongest signal strength in the uplink reference signal received by the network side, the optimal transmitting beam of the UE is a transmitting beam of the UE when the signal strength in the uplink reference signal received by the network side is strongest, and the resources corresponding to the optimal transmitting beam of the UE are resources corresponding to the transmitting beam of the UE when the signal strength in the uplink reference signal received by the network side is strongest.

On the feedback resource, the network side sends downlink feedback in a scanning manner, and the UE receives feedback in a scanning manner, where the downlink feedback must include an optimal sending beam of the UE. Similarly, the UE may determine an optimal receiving beam of itself and an optimal transmitting beam on the network side, or resources corresponding to the optimal receiving beam of itself and the optimal transmitting beam on the network side. Finally, the UE informs the network side of the optimal transmit beam.

When the network side has reciprocity and the UE side does not have reciprocity, as shown in fig. 4, for example, the UE transmits the uplink reference signal in a scanning manner on the uplink reference signal resource, the network side gNB also receives the uplink reference signal in a scanning manner, and after the uplink reference signal transmission is completed, the network side can determine the optimal receiving beam (i.e. receiving beam b) of the UE and the optimal transmitting beam (i.e. transmitting beam 1) of the UE, or the resources (i.e. resource 3) corresponding to the optimal receiving beam of the UE and the optimal transmitting beam of the UE.

Because the network side has reciprocity, the network side can obtain the self optimal transmitting wave beam, namely the transmitting wave beam b according to the reciprocity. Therefore, on the feedback resource, the network side sends feedback on the transmission beam b, and the feedback information must include the optimal transmission beam information of the UE. After receiving all feedback on the feedback resource, the UE can obtain its own optimal receiving beam and the optimal transmitting beam of the base station.

When the network side has no reciprocity, but the UE side has reciprocity, for example, as shown in fig. 5, on the uplink reference signal resource, the UE transmits the uplink reference signal in a scanning manner, the network side gNB also receives the uplink reference signal in a scanning manner, and after the uplink reference signal transmission is completed, the network side can determine the optimal receiving beam (i.e. receiving beam b) of the UE and the optimal transmitting beam (i.e. transmitting beam 1) of the UE, or the resources (i.e. resource 3) corresponding to the optimal receiving beam of the UE and the optimal transmitting beam of the UE.

Since the network side knows the optimal transmitting beam of the UE or the resource corresponding to the optimal transmitting beam and knows that the uplink reference signal resource of the UE using the optimal transmitting beam is 1,3,5, on the feedback resource, the network side sends feedback in a scanning manner on the feedback resource 7,9, 11 corresponding to the resource 1,3, 5. The information fed back at this time may not include optimal transmission beam information of the UE. After the UE receives the feedback, the UE can obtain an optimal receiving beam and an optimal transmitting beam of the network side or resources corresponding to the optimal transmitting beam of the network side. Since the UE can only receive feedback on resources 7,9, 11, the optimal transmit beam obtained according to the resource correspondence is the transmit beam on the 1 st, 3 rd, 5 th resources, that is, the transmit beam 1. Finally, the UE informs the network of the optimal transmit beam.

When the network side and the UE side have reciprocity, as shown in fig. 6, for example, the UE transmits the uplink reference signal in a scanning manner on the uplink reference signal resource, the network side gNB also receives the uplink reference signal in a scanning manner, and after the uplink reference signal transmission is completed, the network side can determine the optimal receiving beam (i.e. receiving beam b) of the network side and the optimal transmitting beam (i.e. transmitting beam 1) of the UE, or the resources (i.e. resource 3) corresponding to the optimal receiving beam of the network side and the optimal transmitting beam of the UE.

Since both the network side and the UE side have reciprocity, the network side can know the optimal transmit beam of itself, i.e. transmit beam b, and the optimal receive beam of the UE is beam 1 or the receive beam in the same direction as the transmit beam on resource 3. On the feedback resource, the network side sends feedback on the feedback resource 9 corresponding to the resource 3 in the transmit beam b. At this time, the feedback information may not include the information of the UE transmitting the beam, and the UE may obtain its own optimal transmitting beam as beam 1 according to the resource correspondence and reciprocity after receiving the feedback.

The data transmission method provided by the embodiment of the invention can reduce the resources used by the network side for feedback, improve the utilization rate of the resources, realize quick scheduling and reduce the delay of uplink data transmission.

Example two

An embodiment of the present invention provides a data transmission method, as shown in fig. 7, where the method may include:

step 201, an uplink reference signal is sent on the configured uplink reference signal resource.

The execution body of the data transmission method provided by the embodiment of the invention can be a data transmission device, and the data transmission device can be specifically a terminal UE, that is, the UE transmits an uplink reference signal on a configured uplink reference signal resource.

The uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information comprises display indication or implicit indication.

The explicit indication refers to carrying uplink scheduling request information in the uplink reference signal. The implicit indication means that the uplink scheduling request is implicitly indicated by the information such as the resource position, sequence selection, cyclic shift, scrambling mode and the like of the reference signal.

Specifically, when the terminal does not send uplink data, the uplink scheduling request indication information indicates that the terminal does not have an uplink scheduling request; when the terminal has uplink data to send, the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request.

For example, when the UE has no uplink data to send, the uplink scheduling request indication information indicates that the terminal has no uplink scheduling request, as shown in fig. 8, the UE sends an uplink reference signal UL RS to the network side gNB in a scanning manner on a certain resource, where the UL RS does not carry the scheduling request, and the network side may send a feedback acknowledgement ACK in a scanning manner on a corresponding resource to indicate that the uplink reference signal has been received, or may not send feedback on the corresponding resource to the network side, that is, the network side may not necessarily send downlink feedback to each uplink reference signal.

For example, when the UE has uplink data to send, the uplink scheduling request indication information indicates that the terminal carries an uplink scheduling request, as shown in fig. 9, the UE sends an uplink reference signal UL RS to the network side gNB in a scanning manner on a certain resource, and the uplink reference signal UL RS carries uplink scheduling request indication information SR. The uplink scheduling request indication information carrying mode at least comprises display carrying and implicit carrying. Displaying information carrying 1bit carried by the uplink reference signal to indicate whether a scheduling request exists, for example, a '1' indicates that the scheduling request exists; "0" indicates that there is no scheduling request. The implicit carrying at least comprises carrying the uplink scheduling request through implicit information such as the resource position, sequence selection, cyclic shift, scrambling mode and the like of the uplink reference signal. The network side sends downlink feedback to the UE on the corresponding resources, wherein the downlink feedback comprises timing advance information TA, and the UE sends beam indication UE Tx beam ID and uplink scheduling UL grant. And the UE transmits uplink DATA UL DATA to the network side by adopting a transmitting beam indicated by the network side according to the uplink scheduling.

Step 202, receiving downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

The downlink feedback at least comprises timing advance information.

Optionally, the downlink feedback further includes: uplink scheduling or uplink scheduling resource indication information, where the uplink scheduling resource indication information is used to indicate a position of the uplink scheduling resource.

In a possible implementation manner, when the terminal sends an uplink reference signal in a directional beam, the sending an uplink reference signal on a configured uplink reference signal resource and receiving downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource include:

Optionally, the method further comprises: and receiving uplink scheduling on the subframe/time slot after the downlink feedback is sent.

Optionally, when the network side does not have reciprocity, after receiving the downlink feedback on the downlink feedback resource corresponding to the uplink reference signal resource, the method further includes: and sending uplink feedback and receiving uplink scheduling.

Further, the sending uplink feedback includes: and transmitting uplink feedback by using the transmitting beam of the terminal configured by the network side, wherein the uplink feedback carries transmitting beam information of the network side.

Further, the receiving uplink scheduling includes: and receiving uplink scheduling on the subframe/time slot after the uplink feedback is sent.

Optionally, the method further comprises: and sending the uplink data according to uplink scheduling.

For example, when the UE has uplink data to send, as shown in fig. 10, the UE sends an uplink reference signal UL RS to the network side gNB in a scanning manner on a certain resource, and the uplink reference signal carries uplink scheduling request indication information. The uplink scheduling request indication information carrying mode at least comprises display carrying and implicit carrying, and the implementation of specific display carrying and implicit carrying is as described above. The network side sends downlink feedback to the UE on the corresponding resources, wherein the downlink feedback comprises timing advance information TA, and the UE sends beam indication UE Tx beam ID and uplink scheduling resource indication information UL grant offset, wherein the uplink scheduling resource indication information is used for indicating the position of uplink scheduling resources. The network sends an uplink scheduling UL grant to the UE on the time domain resource indicated by the uplink scheduling resource indication information. And the UE transmits uplink DATA UL DATA to the network side by adopting a transmitting beam indicated by the network side according to the uplink scheduling.

For example, when the UE has uplink data to send, as shown in fig. 11, the UE sends an uplink reference signal UL RS to the network side gNB in a scanning manner on a certain resource, and the uplink reference signal carries uplink scheduling request indication information. The uplink scheduling request indication information carrying mode at least comprises display carrying and implicit carrying, and the implementation of specific display carrying and implicit carrying is as described above. The network side sends downlink feedback to the UE on the corresponding resources, wherein the downlink feedback comprises timing advance information TA, the UE sends beam indication information UE Tx beam ID, optionally, when the network side does not have reciprocity, the UE sends uplink feedback to the network side by adopting an optimal transmission beam, and the uplink feedback comprises the optimal transmission beam gNB Tx beam ID of the network side. The network transmits an uplink scheduling UL grant to the UE in a downlink preferred beam. And the UE transmits uplink DATA UL DATA to the network side by adopting a transmission beam indicated by the network side according to the uplink scheduling.

Example III

An embodiment of the present invention provides a data transmission method, as shown in fig. 12, where the method may include:

step 301, the UE sends an uplink reference signal UL RS to the network side gNB.

In the embodiment of the invention, the network side has no reciprocity, and the UE side has reciprocity.

Specifically, the UE sends an uplink reference signal to the network side in a scanning manner on a certain resource, where the uplink reference signal carries uplink scheduling request indication information SR. The uplink scheduling request indication information carrying mode at least comprises display carrying and implicit carrying. The display carrying means that the uplink reference signal carries 1bit of information to indicate whether there is a scheduling request, for example, a "1" indicates that there is a scheduling request; "0" indicates that there is no scheduling request. The implicit carrying at least comprises carrying the uplink scheduling request through implicit information such as the resource position, sequence selection, cyclic shift, scrambling mode and the like of the uplink reference signal.

Step 302, the gNB sends downlink feedback to the UE in a beam scanning manner on the corresponding resource, where the downlink feedback information includes timing advance information TA.

In step 303, the UE sends uplink feedback to the gNB, where the uplink feedback includes the network side downlink optimal transmit beam information gNB Tx beam indication.

Specifically, the UE determines its preferred transmit beam according to the correspondence between the uplink reference signal resource and the downlink feedback resource. And, the UE transmits uplink feedback to the network side on the resource corresponding to the downlink feedback in the optimal transmission beam, where the uplink feedback includes gNB Tx beam indication.

Step 304, the gNB sends uplink scheduling UL grant to the UE by using the downlink optimal transmission beam.

In step 305, the UE sends uplink DATA UL DATA to the network side in an optimal transmission beam according to the uplink schedule.

Example IV

An embodiment of the present invention provides a data transmission method, as shown in fig. 13, where the method may include:

step 401, the UE sends an uplink reference signal UL RS to the network side gNB.

Specifically, the UE sends an uplink reference signal to the gNB in a scanning manner on a certain resource, where the uplink reference signal carries uplink scheduling request indication information. The uplink scheduling request indication information carrying manner at least comprises display carrying and implicit carrying, and implementation of specific display carrying and implicit carrying is described above and will not be described in detail herein.

Step 402, the gNB sends downlink feedback to the UE in a beam scanning manner on the corresponding resource, where the downlink feedback includes timing advance information TA and uplink scheduling UL grant.

Step 403, the UE determines its preferred transmitting beam according to the corresponding relationship between the uplink reference signal resource and the downlink feedback resource, and sends uplink DATA UL DATA to the gNB in the optimal transmitting beam according to the uplink scheduling UL grant, where the uplink DATA includes a downlink optimal transmitting beam gNB Tx beam indication on the network side.

Example five

An embodiment of the present invention provides a data transmission method, as shown in fig. 14, where the method may include:

in step 501, the UE sends an uplink reference signal UL RS to the network side gNB.

In the embodiment of the invention, the network side and the UE side have no reciprocity.

Specifically, the UE sends an uplink reference signal to the network side in a scanning manner on a certain resource, and the uplink reference signal carries uplink scheduling request indication information SR. The uplink scheduling request indication information carrying mode at least comprises display carrying and implicit carrying, and the implementation of specific display carrying and implicit carrying is as described above.

Step 502, the gNB sends downlink feedback to the UE in a beam scanning manner on the corresponding resource, where the downlink feedback includes timing advance information TA, and the UE optimally transmits beam information UE Tx beam indication.

In step 503, the UE sends uplink feedback to the gNB with the optimal transmit beam on a certain resource, where the uplink feedback includes the network-side downlink optimal transmit beam information gNB Tx beam indication.

Step 504, the gNB sends uplink scheduling UL grant to the UE with the downlink optimal transmission beam.

In step 505, the UE sends uplink DATA UL DATA to the gNB by using the uplink optimal transmit beam according to the uplink scheduling content.

Example six

An embodiment of the present invention provides a data transmission method, as shown in fig. 15, where the method may include:

in step 601, the UE sends an uplink reference signal UL RS to the network side gNB.

In the embodiment of the invention, the network side and the UE side have reciprocity.

Specifically, the UE sends an uplink reference signal to the network side in a scanning manner on a certain resource, where the uplink reference signal carries uplink scheduling request indication information. The carrying manner of the uplink scheduling request indication information at least comprises display carrying and implicit carrying, and implementation of specific display carrying and implicit carrying is described above and will not be repeated here.

Step 602, the gNB sends downlink feedback to the UE on the corresponding resource, where the downlink feedback includes timing advance information TA, and the UE uplink schedules UL grant.

Step 603, the UE determines its preferred transmitting beam according to the corresponding relationship between the uplink reference signal resource and the downlink feedback resource, and sends uplink DATA UL DATA to the network side in the optimal transmitting beam according to the uplink scheduling.

Example seven

An embodiment of the present invention provides a data transmission method, as shown in fig. 16, where the method may include:

in step 701, the UE sends an uplink reference signal UL RS to the network side gNB.

The data transmission method provided by the embodiment of the invention is applied to the case that both the network side and the UE side transmit by using omni-directional beams.

Specifically, the UE sends an uplink reference signal to the network side on a certain resource by using an omni-directional beam, where the uplink reference signal carries uplink scheduling request indication information. The carrying mode of the uplink scheduling request indication information at least comprises display carrying and implicit carrying. The display carries information indicating that the uplink reference signal carries 1bit to indicate whether a scheduling request exists, for example, a '1' indicates that the scheduling request exists; "0" indicates that there is no scheduling request. The implicit carrying at least comprises carrying the uplink scheduling request through implicit information such as the resource position, sequence selection, cyclic shift, scrambling mode and the like of the uplink reference signal.

Step 702, the gNB sends downlink feedback to the UE on a downlink feedback resource corresponding to the uplink reference signal resource, where the downlink feedback includes timing advance information TA and a UE uplink scheduling UL grant.

In step 703, the UE sends uplink DATA UL DATA to the gNB according to the uplink schedule in the downlink feedback.

Example eight

An embodiment of the present invention provides a data transmission method, as shown in fig. 17, where the method may include:

step 801, the UE sends an uplink reference signal UL RS to the network side gNB.

The data transmission method provided by the embodiment of the invention is applied to the case that both the network side and the UE side transmit by using omni-directional beams. The UE sends an uplink reference signal to the gNB on a certain resource, where the uplink reference signal carries uplink scheduling request indication information. The uplink scheduling request indication information carrying manner at least comprises display carrying and implicit carrying, and implementation of specific display carrying and implicit carrying is described above and will not be described in detail herein.

Step 802, the gNB sends downlink feedback to the UE on the corresponding resource, where the downlink feedback includes timing advance information TA.

Step 803, the gNB sends a UL grant to the UE.

In step 804, the UE sends uplink DATA UL DATA to the gNB according to the uplink scheduling UL grant.

Example nine

An embodiment of the present invention provides a data transmitting apparatus 90, as shown in fig. 18, including: a first receiving unit 901, a first transmitting unit 902, wherein,

the first receiving unit 901 is configured to receive an uplink reference signal on an uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used to indicate whether a network side receives an uplink scheduling request;

the first sending unit 902 is configured to send downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, as shown in fig. 19, the apparatus further includes: a configuration unit 903, configured to pre-configure the uplink reference signal resource and the downlink feedback resource, where a correspondence exists between the uplink reference signal resource and the downlink feedback resource.

Further, as shown in fig. 19, the apparatus further includes: a configuration unit 903, configured to configure a receive beam policy for the terminal according to the reciprocity characteristics of the network side and the terminal.

Further, the first receiving unit 901 is further configured to receive, when the network side does not have reciprocity, uplink feedback at a location corresponding to the downlink feedback;

The first sending unit 902 is further configured to send uplink scheduling.

Further, the first sending unit 902 is further configured to send downlink feedback on the downlink feedback resource in a beam scanning manner when the network side does not have reciprocity.

Further, the first sending unit 902 is further configured to send downlink feedback on the downlink feedback resource in a beam scanning manner when the network side has reciprocity, where the first sending beam on the network side is a sending beam corresponding to a receiving beam with the strongest signal strength in the uplink reference signal received by the network side.

Further, the first sending unit 902 is further configured to send, when the downlink feedback includes the uplink scheduling resource indication information, the uplink scheduling on a resource indicated by the uplink scheduling resource indication information.

Further, the first sending unit 902 is further configured to send the uplink schedule in a subframe/slot after sending the downlink feedback.

Further, the first receiving unit 901 is configured to receive uplink feedback on a resource corresponding to the downlink feedback, where the uplink feedback includes a transmit beam of the network side;

The first sending unit 902 is further configured to send the uplink schedule by using a transmission beam at the network side in the uplink feedback.

Further, the first receiving unit 901 is configured to receive uplink data on the uplink scheduling indicated resource.

Specifically, the understanding of the data transmission device provided in the embodiment of the present invention may refer to the description of the foregoing data transmission method embodiment, and the embodiment of the present invention is not repeated herein.

The data transmitting device provided by the embodiment of the invention can reduce the resources used by the network side for feedback, improve the utilization rate of the resources, realize quick scheduling and reduce the delay of uplink data transmission.

Examples ten

An embodiment of the present invention provides a data transmitting apparatus 100, as shown in fig. 20, including: a second transmitting unit 1001, a second receiving unit 1002, wherein,

the second sending unit 1001 is configured to send an uplink reference signal on the configured uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information;

the second receiving unit 1002 is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, the downlink feedback at least includes: timing advance information.

Further, when the terminal transmits an uplink reference signal in a directional beam, the second transmitting unit 1001 is configured to transmit the uplink reference signal in a beam scanning manner on a configured uplink reference signal resource;

the second receiving unit 1002 is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource according to a configured receiving beam policy, where when the terminal does not have reciprocity, the downlink feedback at least includes: and the transmitting beam information of the terminal is used for indicating the transmitting beam of the terminal, and when the terminal has reciprocity, the transmitting beam of the terminal is determined according to the corresponding relation between the uplink reference signal resource and the downlink feedback resource.

Further, the second receiving unit 1002 is configured to receive, when the downlink feedback includes uplink scheduling resource indication information, uplink scheduling on a resource indicated by the uplink scheduling resource indication information.

Further, the second receiving unit 1002 is configured to receive an uplink schedule on a subframe/slot after the downlink feedback is sent.

Further, when the network side does not have reciprocity, the second sending unit 1001 is further configured to send uplink feedback;

the second receiving unit 1002 is configured to receive uplink scheduling.

Further, the second sending unit 1001 is configured to send uplink feedback with a transmission beam of the terminal configured on the network side, where the uplink feedback carries the transmission beam information on the network side.

Further, the second receiving unit 1002 is further configured to receive an uplink schedule on a subframe/slot after the uplink feedback is sent.

Further, the second sending unit 1001 is further configured to send the uplink data according to an uplink schedule.

Example eleven

An embodiment of the present invention provides a network side 110, as shown in fig. 21, where the network side includes: a receiver 1101, a transmitter 1102, wherein,

the receiver 1101 is configured to receive an uplink reference signal on an uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used to indicate whether the network side receives an uplink scheduling request;

the transmitter 1102 is configured to send downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, as shown in fig. 22, the network side further includes: the processor 1103 is configured to pre-configure the uplink reference signal resource and the downlink feedback resource, where a correspondence exists between the uplink reference signal resource and the downlink feedback resource.

Further, as shown in fig. 22, the apparatus further includes: a processor 1103 is configured to configure a reception beam policy for the terminal according to the reciprocity characteristics of the network side and the terminal.

Further, the receiver 1101 is further configured to receive uplink feedback at a location corresponding to the downlink feedback when the network side has no reciprocity;

The transmitter 1102 is further configured to transmit an uplink schedule.

Further, the transmitter 1102 is further configured to send downlink feedback on the downlink feedback resource in a beam scanning manner when the network side does not have reciprocity.

Further, the transmitter 1102 is further configured to send downlink feedback on the downlink feedback resource in a beam scanning manner when the network side has reciprocity, where the first transmission beam on the network side is a transmission beam corresponding to a reception beam with the strongest signal strength in the uplink reference signal received by the network side.

Further, the transmitter 1102 is further configured to send, when the downlink feedback includes the uplink scheduling resource indication information, the uplink scheduling on a resource indicated by the uplink scheduling resource indication information.

Further, the transmitter 1102 is further configured to send the uplink schedule in a subframe/slot after the downlink feedback is sent.

Further, the receiver 1101 is configured to receive uplink feedback on a resource corresponding to the downlink feedback, where the uplink feedback includes a transmit beam of the network side;

the transmitter 1102 is further configured to send the uplink schedule by using a transmit beam at the network side in the uplink feedback.

Further, the receiver 1102 is configured to receive uplink data on the resources indicated by the uplink scheduling.

Specifically, the understanding of the network side provided by the embodiment of the present invention may refer to the description of the above data transmission method embodiment, and the embodiment of the present invention is not described herein again.

The network side provided by the embodiment of the invention improves the resource utilization rate, can realize quick scheduling and reduces the delay of uplink data transmission.

Example twelve

An embodiment of the present invention provides a terminal 120, as shown in fig. 23, including: a transmitter 1201, a receiver 1202, wherein,

the transmitter 1201 is configured to transmit an uplink reference signal on a configured uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information;

the receiver 1202 is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource.

Further, the downlink feedback at least includes: timing advance information.

Further, when the terminal transmits an uplink reference signal in a directional beam, the transmitter 1201 is configured to transmit the uplink reference signal in a beam scanning manner on a configured uplink reference signal resource;

the receiver 1202 is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource according to a configured reception beam policy, where when the terminal does not have reciprocity, the downlink feedback at least includes: and the transmitting beam information of the terminal is used for indicating the transmitting beam of the terminal, and when the terminal has reciprocity, the transmitting beam of the terminal is determined according to the corresponding relation between the uplink reference signal resource and the downlink feedback resource.

Further, the receiver 1202 is configured to receive, when the downlink feedback includes uplink scheduling resource indication information, uplink scheduling on a resource indicated by the uplink scheduling resource indication information.

Further, the receiver 1202 is configured to receive an uplink schedule on a subframe/slot after the downlink feedback is sent.

Further, when the network side does not have reciprocity, the transmitter 1201 is further configured to send uplink feedback;

the receiver 1202 is configured to receive an uplink schedule.

Further, the transmitter 1201 is configured to send uplink feedback with a transmit beam of the terminal configured on the network side, where the uplink feedback carries transmit beam information on the network side.

Further, the receiver 1202 is further configured to receive an uplink schedule on a subframe/slot after the uplink feedback is sent.

Further, the transmitter 1201 is further configured to transmit the uplink data according to an uplink schedule.

Specifically, the understanding of the terminal provided in the embodiment of the present invention may refer to the description of the above embodiment of the data transmission method, and the embodiment of the present invention is not described herein again.

The terminal provided by the embodiment of the invention improves the resource utilization rate, can realize quick scheduling and reduces the delay of uplink data transmission.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method of transmitting data, the method comprising:

receiving an uplink reference signal on an uplink reference signal resource, wherein the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used for indicating whether a terminal has an uplink scheduling request or not;

transmitting downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource;

when the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request, the downlink feedback at least comprises timing advance information;

and when the uplink scheduling request indication information indicates that the terminal does not have an uplink scheduling request, the downlink feedback comprises receiving feedback of the uplink reference signal received by the network side.

2. The method of claim 1, wherein the uplink reference signal resource and the downlink feedback resource are preconfigured, and wherein a correspondence exists between the uplink reference signal resource and the downlink feedback resource.

3. The method of claim 1, wherein when the network side transmits the downlink feedback in a directional beam manner and the terminal has no reciprocity, the downlink feedback at least includes: and transmitting beam information of the terminal.

4. A method according to claim 3, characterized in that the method further comprises: and configuring a receiving beam strategy for the terminal according to the reciprocity characteristics of the network side and the terminal.

5. The method of claim 1, wherein the uplink scheduling request indication information comprises a display indication or an implicit indication.

6. A method according to claim 1 or 3, wherein the downlink feedback further comprises: and the uplink scheduling or uplink scheduling resource indicating information is used for indicating the position of the uplink scheduling resource.

7. The method of claim 3, wherein when the network side does not have reciprocity, after the sending the downlink feedback on the downlink feedback resource corresponding to the uplink reference signal resource, the method further comprises:

8. The method of claim 3, wherein the sending downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource comprises:

9. The method of claim 3, wherein the sending downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource comprises:

10. The method of claim 6, wherein the method further comprises:

11. A method according to claim 1 or 3, characterized in that the method further comprises:

12. The method of claim 7, wherein the receiving uplink feedback at the location corresponding to the downlink feedback, and transmitting uplink scheduling, comprises:

13. The method of any one of claims 6, 10, 11, or 12, further comprising:

and receiving uplink data on the resources indicated by the uplink scheduling.

14. A method of transmitting data, the method comprising:

receiving downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource;

when the uplink scheduling request indication information indicates that the terminal does not have an uplink scheduling request, the downlink feedback comprises receiving feedback of the uplink reference signal;

And when the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request, the downlink feedback at least comprises timing advance information.

15. The method according to claim 14, wherein the uplink scheduling request indication information indicates that the terminal has no uplink scheduling request when the terminal has no uplink data transmission; when the terminal has uplink data to send, the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request.

16. The method of claim 15, wherein the uplink scheduling request indication information comprises a display indication or an implicit indication.

17. The method according to claim 14, wherein when the terminal transmits the uplink reference signal in the directional beam, the transmitting the uplink reference signal on the configured uplink reference signal resource, and receiving the downlink feedback on the downlink feedback resource corresponding to the uplink reference signal resource, comprises:

18. The method according to claim 14 or 17, wherein the downlink feedback further comprises: uplink scheduling or uplink scheduling resource indication information, where the uplink scheduling resource indication information is used to indicate a position of the uplink scheduling resource.

19. The method of claim 18, wherein the method further comprises: and when the downlink feedback comprises uplink scheduling resource indication information, receiving uplink scheduling on resources indicated by the uplink scheduling resource indication information.

20. The method according to claim 14 or 17, characterized in that the method further comprises: and receiving uplink scheduling on the subframe/time slot after the downlink feedback is sent.

21. The method according to claim 14 or 17, wherein when the network side does not have reciprocity, after the receiving downlink feedback on the downlink feedback resource corresponding to the uplink reference signal resource, the method further comprises:

and sending uplink feedback and receiving uplink scheduling.

22. The method of claim 21, wherein the sending uplink feedback comprises:

23. The method of claim 22, wherein the receiving the uplink schedule comprises:

24. The method of claim 18, 19, 20, or 23, further comprising: and sending the uplink data according to the uplink scheduling.

25. A data transmission apparatus, the apparatus comprising: a first receiving unit, a first transmitting unit, wherein,

the first receiving unit is configured to receive an uplink reference signal on an uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used to indicate whether a terminal has an uplink scheduling request;

the first sending unit is configured to send downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource;

26. The apparatus of claim 25, wherein the apparatus further comprises: the configuration unit is configured to pre-configure the uplink reference signal resource and the downlink feedback resource, where a correspondence exists between the uplink reference signal resource and the downlink feedback resource.

27. The apparatus of claim 25, wherein when the network side transmits the downlink feedback in a directional beam manner and the terminal has no reciprocity, the downlink feedback comprises at least: and transmitting beam information of the terminal.

28. The apparatus of claim 25 or 27, wherein the downstream feedback further comprises: uplink scheduling or uplink scheduling resource indication information, wherein the uplink scheduling resource indication information is used for indicating the position of uplink scheduling resources.

29. The apparatus of claim 27, wherein the device comprises a plurality of sensors,

the first receiving unit is further configured to receive uplink feedback at a location corresponding to the downlink feedback when the network side does not have reciprocity;

the first sending unit is further configured to send uplink scheduling.

30. The apparatus of claim 27, wherein the first transmitting unit is further configured to send downlink feedback on the downlink feedback resource in a beam scanning manner when the network side has reciprocity, and the first transmitting beam on the network side is a transmitting beam corresponding to a receiving beam with the strongest signal strength in the uplink reference signal received by the network side.

31. The apparatus according to claim 25 or 27, wherein the first sending unit is further configured to send the uplink schedule in a subframe/slot after sending the downlink feedback.

32. A data transmission apparatus, the apparatus comprising: a second transmitting unit, a second receiving unit, wherein,

the second receiving unit is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource;

when the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request, the downlink feedback at least comprises: timing advance information.

33. The apparatus according to claim 32, wherein when the terminal transmits the uplink reference signal in a directional beam, the second transmitting unit is configured to transmit the uplink reference signal in a beam scanning manner on the configured uplink reference signal resource;

34. The apparatus of claim 32 or 33, wherein the downstream feedback further comprises: uplink scheduling or uplink scheduling resource indication information, where the uplink scheduling resource indication information is used to indicate a position of the uplink scheduling resource.

35. A network side, the network side comprising: a receiver, a transmitter, wherein,

the receiver is configured to receive an uplink reference signal on an uplink reference signal resource, where the uplink reference signal carries uplink scheduling request indication information, and the uplink scheduling request indication information is used to indicate whether a terminal has an uplink scheduling request;

the transmitter is configured to send downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource;

36. The network side of claim 35, wherein the network side further comprises: and the processor is used for pre-configuring the uplink reference signal resource and the downlink feedback resource, wherein a corresponding relation exists between the uplink reference signal resource and the downlink feedback resource.

37. The network side of claim 35, wherein when the network side transmits downlink feedback in a directional beam manner and the terminal has no reciprocity, the downlink feedback at least includes: and transmitting beam information of the terminal.

38. The network side of claim 37 wherein,

the receiver is further configured to receive uplink feedback at a location corresponding to the downlink feedback when the network side does not have reciprocity;

the transmitter is further configured to transmit an uplink schedule.

39. The network side of claim 37, wherein the transmitter is further configured to send downlink feedback on the downlink feedback resource in a beam scanning manner when the network side has reciprocity, and the first transmission beam of the network side is a transmission beam corresponding to a reception beam with a strongest signal strength in the uplink reference signal received by the network side.

40. A terminal, the terminal comprising: a transmitter, a receiver, wherein,

The receiver is configured to receive downlink feedback on a downlink feedback resource corresponding to the uplink reference signal resource;

when the uplink scheduling request indication information indicates that the terminal does not have an uplink scheduling request, the downlink feedback comprises receiving feedback of the uplink reference signal; when the uplink scheduling request indication information indicates that the terminal has an uplink scheduling request, the downlink feedback at least includes: timing advance information.

41. The terminal of claim 40, wherein when the terminal transmits the uplink reference signal in a directional beam, the transmitter is configured to transmit the uplink reference signal in a beam scanning manner on the configured uplink reference signal resource;

42. The terminal of claim 40 or 41, wherein the downlink feedback further comprises: uplink scheduling or uplink scheduling resource indication information, where the uplink scheduling resource indication information is used to indicate a position of the uplink scheduling resource.