WO2017049425A1

WO2017049425A1 - Uplink data transmission method and user equipment

Info

Publication number: WO2017049425A1
Application number: PCT/CN2015/090071
Authority: WO
Inventors: 酉春华; 黄曲芳
Original assignee: 华为技术有限公司
Priority date: 2015-09-21
Filing date: 2015-09-21
Publication date: 2017-03-30
Also published as: CN107079429A; CN107079429B

Abstract

Embodiments of the present invention provide an uplink data transmission method and a user equipment. The method comprises: receiving a first uplink grant (UL grant) from a first serving cell; generating first power headroom information and retaining a triggered power headroom report (PHR); and sending the first power headroom information to the first serving cell according to the first UL grant. According to the transmission method provided by the embodiments of the present invention, a triggered PHR will not be cancelled before a generated PHR is successfully sent, instead the triggered PHR will be cancelled after it is determined that the generated PHR is successfully sent over a physical layer. Compared with the prior art, the present invention can ensure, to a certain extent, the timely transmission of PHRs and can effectively improve the transmission reliability of PHRs.

Description

Uplink data transmission method and user equipment

Technical field

The embodiments of the present invention relate to the field of communications, and in particular, to a method for transmitting uplink data and a user equipment.

Background technique

User equipment (User Equipment, referred to as "UE") in the Long Term Evolution (LTE)/Enhanced Long Term Evolution-Advanced (LTE-A) system The evolved base station (Evolutional Node B, referred to as "eNB or e-NodeB") transmits a Power Headroom Report ("PHR"), and the PHR can provide information for power control and scheduling for the eNB. The UE needs to meet two conditions for sending the PHR to the eNB: 1) triggering the PHR; 2) receiving the UL grant delivered by the eNB.

In the prior art, when the conditions 1) and 2) are satisfied, the media access control (Media Access Control, abbreviated as "MAC") entity obtains the power headroom information, generates the PHR MAC CE according to the power headroom information, and assembles the The MAC data unit (Protocol Data Unit, hereinafter referred to as "PDU") is then notified to the physical layer to report the MAC PDU to the eNB. However, when the UE sends the PHR through the unlicensed spectrum cell, the physical layer must perform the Listen Before Talk (LBT) process before transmitting the data. If the LBT process fails, the data cannot be transmitted. Therefore, when the UE reports the PHR through the unlicensed spectrum cell, the operation according to the existing process affects the reliability and timeliness of the reporting of the PHR.

Summary of the invention

The embodiment of the invention provides a method for transmitting uplink data and a user equipment, which can effectively improve the transmission reliability of the PHR.

The first aspect provides a method for transmitting uplink data, where the method includes:

Trigger power headroom report PHR;

Receiving a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell;

Generating first power headroom information according to the already triggered PHR and the first UL grant, and retaining the already triggered PHR;

And transmitting, according to the first UL grant, the first power headroom information to the first serving cell.

With reference to the first aspect, in a possible implementation manner of the first aspect, the sending, by the first serving, the first power headroom information, according to the first UL grant, includes:

After listening to the LBT process, the first resource is contending, and after the first resource is successfully queried, the first power headroom information is sent to the first serving cell based on the first resource, and the triggered PHR is cancelled. The first resource is an uplink transmission resource indicated by the first UL grant.

With reference to the first aspect and the foregoing possible implementation manner, in a possible implementation manner of the first aspect, the method further includes:

After the failure to compete for the first resource, the first power headroom information is not sent to the first serving cell, and the PHR that has been triggered is retained.

With reference to the first aspect and the foregoing possible implementation manner, in a possible implementation manner of the first aspect, if the content of the first resource fails, the method further includes:

Receiving a second UL grant of the second serving cell;

Generating second power headroom information according to the second UL grant and the already triggered PHR, and continuing to retain the already triggered PHR;

And transmitting, according to the second UL grant, the second power headroom information to the second serving cell, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.

With reference to the first aspect and the foregoing possible implementation manner, in a possible implementation manner of the first aspect, the generating the second power headroom information includes:

The second power headroom information is generated by increasing the priority of the already triggered PHR.

With reference to the first aspect and the foregoing possible implementation manner, in a possible implementation manner of the first aspect, the triggering power headroom report PHR includes:

The PHR is triggered according to a preset trigger condition, and the preset trigger condition does not include activating an unlicensed spectrum cell with an uplink.

With reference to the first aspect and the foregoing possible implementation manner, in a possible implementation manner of the first aspect, the method is performed by a user equipment UE, where the serving cell includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell All are activated cells with uplinks, where the first power headroom information is generated, including:

The first power headroom information is generated, where the first power headroom information includes a power headroom value of each cell in the serving cell, where the power headroom value of the unlicensed spectrum cell is a virtual value.

The second aspect provides a method for transmitting uplink data, where the method includes:

Trigger power headroom report PHR;

Receiving a first uplink scheduling grant UL grant of the first serving cell;

When the first serving cell is an unlicensed spectrum cell, retaining the already triggered PHR;

Generating a first power headroom information according to the already triggered PHR and the first UL grant, and sending the first to the first serving cell according to the first UL grant, when the first serving cell is an authorized spectrum cell Power headroom information and cancel the PHR that has been triggered.

With reference to the second aspect, in a possible implementation manner of the second aspect, when the first serving cell is an unlicensed spectrum cell, power headroom information is not generated.

With the second aspect and the foregoing possible implementation manner, in a possible implementation manner of the second aspect, in a case that the first serving cell is an unlicensed spectrum cell, the method further includes:

Receiving a second UL grant of the second serving cell;

Generating a second power headroom information according to the already triggered PHR and the second UL grant, and sending the second serving cell to the second serving cell according to the second UL grant, Two power headroom information, and the PHR that has been triggered.

With reference to the second aspect and the foregoing possible implementation manner, in a possible implementation manner of the second aspect, the generating the second power headroom information includes:

With reference to the second aspect and the foregoing possible implementation manner, in a possible implementation manner of the second aspect, the trigger power headroom report PHR includes:

With reference to the second aspect and the foregoing possible implementation manner, in a possible implementation manner of the second aspect, the method is performed by a user equipment UE, where the serving cell includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell All are activated cells with uplinks, where the first power headroom information is generated, including:

In a third aspect, a method for transmitting uplink data is provided, where the method includes:

Trigger buffer status report BSR;

Receiving a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is non- Authorized spectrum cell;

Generating the first buffer state information according to the triggered BSR and the first UL grant, and retaining the BSR that has been triggered;

And transmitting, according to the first UL grant, the first buffer status information to the first serving cell.

With reference to the third aspect, in a possible implementation manner of the third aspect, the sending, by the first serving, the first buffer status information, according to the first UL grant, includes:

After listening to the LBT process, the first resource is contending, and after the first resource is successfully queried, the first buffer status information is sent to the first serving cell based on the first resource, and the BSR that has been triggered is cancelled. A resource is an uplink transmission resource indicated by the first UL grant.

With reference to the third aspect and the foregoing possible implementation manner, in a possible implementation manner of the third aspect, the method further includes:

After the failure to compete for the first resource, the first buffer status information is not sent to the first serving cell, and the BSR that has been triggered is retained.

With reference to the third aspect and the foregoing possible implementation manner, in a possible implementation manner of the third aspect, in a case that the first resource fails to compete, the method further includes:

Receiving a second UL grant of the second serving cell;

Generating a second buffer status information according to the triggered BSR and the second UL grant, and continuing to retain the BSR that has been triggered;

And sending, according to the second UL grant, the second buffer status information to the second serving cell, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.

With reference to the third aspect and the foregoing possible implementation manner, in a possible implementation manner of the third aspect, generating the second buffer state information includes:

The second buffer state information is generated by increasing the priority of the BSR.

The fourth aspect provides a method for transmitting uplink data, where the method includes:

Trigger buffer status report BSR;

Receiving a first uplink scheduling grant UL grant of the first serving cell;

When the first serving cell is an unlicensed spectrum cell, and retaining the BSR that has been triggered;

When the first serving cell is an authorized spectrum cell, generating, according to the triggered BSR and the first UL grant, first buffer state information, and sending the generated to the first serving cell based on the first UL grant The first buffer status information and cancel the BSR that has been triggered.

With reference to the fourth aspect, in a possible implementation manner of the fourth aspect, when the first service is small When the area is an unlicensed spectrum cell, no buffer status information is generated.

With reference to the fourth aspect and the foregoing possible implementation manner, in a possible implementation manner of the fourth aspect, in a case that the first serving cell is an unlicensed spectrum cell, the method further includes:

Receiving a second UL grant of the second serving cell;

When the second serving cell is an authorized spectrum cell, generating, according to the triggered BSR and the second UL grant, second buffer state information, and sending the second to the second serving cell according to the second UL grant Buffer status information and cancel the BSR that has been triggered.

With reference to the fourth aspect and the foregoing possible implementation manner, in a possible implementation manner of the fourth aspect, generating the second buffer state information includes:

A fifth aspect provides a user equipment UE, where the UE includes:

a trigger module, configured to trigger a power headroom report PHR;

a receiving module, configured to receive a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell;

a generating module, configured to generate first power headroom information according to the PHR that has been triggered by the triggering module and the first UL grant received by the receiving module, and retain the PHR that has been triggered by the triggering module;

And a sending module, configured to send the first power headroom information generated by the generating module to the first serving cell according to the first UL grant.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the sending module is specifically configured to: after listening to the LBT process, competing for the first resource, and after competing for the first resource, based on the first The resource sends the first power headroom information to the first serving cell, and cancels the PHR that has been triggered by the triggering module, where the first resource is an uplink transmission resource indicated by the first UL grant.

With reference to the fifth aspect and the foregoing possible implementation manner, in a possible implementation manner of the fifth aspect, the sending module is further configured to: after the contention of the first resource fails, the first serving cell is not sent to the first serving cell A power headroom message and continue to hold the PHR that has been triggered.

With reference to the fifth aspect and the foregoing possible implementation manner, in a possible implementation manner of the fifth aspect, the receiving module is further configured to receive the second serving cell in a case that the sending module fails to compete for the first resource Second UL grant;

The generating module is configured to generate second power headroom information according to the second UL grant received by the receiving module and the PHR that has been triggered by the triggering module, and continue to reserve that the triggering module has been triggered. PHR;

The sending module is further configured to send the second power headroom information generated by the generating module to the second serving cell according to the second UL grant received by the receiving module, where the second serving cell is an unlicensed spectrum cell or Authorized spectrum cell.

With reference to the fifth aspect and the foregoing possible implementation manner, in a possible implementation manner of the fifth aspect, the generating module is specifically configured to generate the second power remaining by increasing a priority of a PHR that has been triggered by the triggering module Quantity information.

With reference to the fifth aspect and the foregoing possible implementation manner, in a possible implementation manner of the fifth aspect, the triggering module is specifically configured to: trigger the PHR according to a preset triggering condition, where the preset triggering condition does not include activation There are uplink unlicensed spectrum cells.

With reference to the fifth aspect and the foregoing possible implementation manner, in a possible implementation manner of the fifth aspect, the serving cell of the UE includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell is activated and configured with an uplink. a cell, where the generating module is configured to generate the first power headroom information, where the first power headroom information includes a power headroom value of each cell in the serving cell, where the power of the unlicensed spectrum cell The margin value is a dummy value.

A sixth aspect provides a user equipment UE, where the UE includes:

a trigger module, configured to trigger a power headroom report PHR;

a receiving module, configured to receive a first uplink scheduling grant UL grant of the first serving cell;

a processing module, configured to: when the first serving cell is an unlicensed spectrum cell, retain the PHR that has been triggered by the triggering module;

The processing module is further configured to: when the first serving cell is an authorized spectrum cell, generate a first power headroom information according to the PHR that has been triggered by the triggering module and the first UL grant received by the receiving module, and according to the first A UL grant sends the first power headroom information to the first serving cell, and cancels the already triggered PHR.

In conjunction with the sixth aspect, in a possible implementation manner of the sixth aspect, the processing module is further configured to: when the first serving cell is an unlicensed spectrum cell, does not generate power headroom information.

With the sixth aspect and the foregoing possible implementation manner, in a possible implementation manner of the sixth aspect, where the first serving cell is an unlicensed spectrum cell,

The receiving module is further configured to receive a second UL grant of the second serving cell;

The processing module is further configured to: when the second serving cell is an authorized spectrum cell, generate second power headroom information according to the triggered PHR and the second UL grant, and according to the second The UL grant sends the second power headroom information to the second serving cell, and the PHR that has been triggered.

With reference to the sixth aspect and the foregoing possible implementation manner, in a possible implementation manner of the sixth aspect, the processing module is further configured to generate the second power remaining by increasing a priority of the PHR that the triggering module has triggered Quantity information.

With reference to the sixth aspect and the foregoing possible implementation manner, in a possible implementation manner of the sixth aspect, the triggering module is specifically configured to: trigger the PHR according to a preset triggering condition, where the preset triggering condition does not include activation There are uplink unlicensed spectrum cells.

With reference to the sixth aspect and the foregoing possible implementation manner, in a possible implementation manner of the sixth aspect, the serving cell of the UE includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell is activated and configured with an uplink. a cell, where the processing module is configured to: when the first serving cell is an authorized spectrum cell, generate the first power headroom according to the PHR that has been triggered by the triggering module and the first UL grant received by the receiving module. The information, the first power headroom information includes a power headroom value of each cell in the serving cell, where the power headroom value of the unlicensed spectrum cell is a virtual value.

A seventh aspect provides a user equipment UE, where the UE includes:

a trigger module, configured to trigger a buffer status report BSR;

a generating module, configured to generate a first buffer state information according to the BSR that has been triggered by the triggering module and the first UL grant that is received by the receiving module, and retain the BSR that has been triggered by the triggering module;

And a sending module, configured to send, according to the first UL grant received by the receiving module, the first buffer state information generated by the generating module to the first serving cell.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the sending module is specifically configured to: after listening to the LBT process, competing for the first resource, and after competing for the first resource, based on the first The resource sends the first buffer status information to the first serving cell, and cancels the BSR that has been triggered by the triggering module, where the first resource is an uplink transmission resource indicated by the first UL grant.

With reference to the seventh aspect and the foregoing possible implementation manner, in a possible implementation manner of the seventh aspect, the sending module is further configured to: after the contention of the first resource fails, not to the first serving cell The first buffer status information is sent, and the BSR that the trigger module has triggered is retained.

With reference to the seventh aspect and the foregoing possible implementation manner, in a possible implementation manner of the seventh aspect, the receiving module is further configured to receive the second serving cell in the case that the first resource fails to be contending UL grant;

The generating module is further configured to: generate, according to the triggered BSR and the second UL grant, second buffer state information, and continue to retain the BSR that has been triggered;

The sending module is further configured to send the second buffer status information to the second serving cell according to the second UL grant, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.

With reference to the seventh aspect and the foregoing possible implementation manner, in a possible implementation manner of the seventh aspect, the generating module is specifically configured to generate the second buffer state information by increasing a priority of the BSR.

The eighth aspect provides a user equipment UE, where the UE includes:

a trigger module, configured to trigger a buffer status report BSR;

a processing module, configured to: when the first serving cell is an unlicensed spectrum cell, retain the BSR that has been triggered by the triggering module;

The processing module is further configured to: when the first serving cell is an authorized spectrum cell, generate a first buffer state information according to the BSR that has been triggered by the triggering module and the first UL grant received by the receiving module, and based on the first A UL grant sends the generated first buffer status information to the first serving cell, and cancels the BSR that has been triggered.

In conjunction with the eighth aspect, in a possible implementation manner of the eighth aspect, the processing module is further configured to: when the first serving cell is an unlicensed spectrum cell, does not generate buffer state information.

With the eighth aspect and the foregoing possible implementation manner, in a possible implementation manner of the eighth aspect, in a case where the first serving cell is an unlicensed spectrum cell,

The processing module is further configured to: when the second serving cell is an authorized spectrum cell, generate second buffer state information according to the triggered BSR and the second UL grant, according to the second UL grant, to the first The second serving cell sends the second buffer status information, and cancels the BSR that has been triggered.

Combined with the eighth aspect and the above possible implementation manner, a possible implementation side in the eighth aspect The processing module is further configured to generate the second buffer state information by increasing a priority of the BSR that the trigger module has triggered.

Based on the foregoing technical solution, after the power headroom information to be reported is generated, the PHR that has been triggered is not canceled as in the prior art, but the PHR that has been triggered is retained. It is called “suspended PHR”, and then sends the generated power headroom information to the eNB. If the transmission is successful, the PHR that has been triggered is cancelled. Therefore, the method provided by the embodiment of the present invention can ensure the timely transmission of the PHR to a certain extent compared with the prior art, and can effectively improve the transmission reliability of the PHR.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, other drawings may be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.

FIG. 2 is a schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.

FIG. 3 is another schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.

FIG. 4 is still another schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.

FIG. 5 is still another schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.

FIG. 6 is a schematic diagram showing a transmission power headroom report PHR according to an embodiment of the present invention.

FIG. 7 shows a schematic diagram of a construction PHR according to an embodiment of the present invention.

FIG. 8 is still another schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.

FIG. 9 is still another schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.

FIG. 10 is a schematic flowchart of a method for transmitting uplink data according to another embodiment of the present invention.

FIG. 11 is another schematic flowchart of a method for transmitting uplink data according to another embodiment of the present invention.

FIG. 12 shows a schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 13 shows another schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 14 shows still another schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 15 shows still another schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 16 shows still another schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 17 shows still another schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 18 shows still another schematic block diagram of a user equipment according to an embodiment of the present invention.

FIG. 19 shows still another schematic block diagram of a user equipment according to an embodiment of the present invention.

Detailed ways

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 a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should also be understood that in the embodiment of the present invention, a user equipment (User Equipment, referred to as "UE") may also be referred to as a terminal, a mobile station (Mobile Station, simply referred to as "MS"), a mobile terminal (Mobile Terminal), and the like. The user equipment may communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment may be a mobile phone (or "cellular" phone), having The computer or the like of the mobile terminal, for example, the user device may also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.

In order to facilitate the understanding and description of the uplink data transmission method and user equipment provided by the embodiments of the present invention, the application scenario of the embodiment of the present invention is first introduced.

In the embodiment of the present invention, the base station may be a base station (Base Transceiver Station, abbreviated as "BTS") in GSM, or may be a base station (NodeB, referred to as "NB") in WCDMA, or may be an evolution in LTE. The embodiments of the present invention are not limited to the embodiments of the present invention. For the convenience of description, the following embodiments will be described by taking an eNB as an example.

When the UE has the requirement to send data, it must first obtain the permission of the eNB, that is, the UE applies to the eNB. Please send a data permission. It should be understood that there are two main ways for the UE to apply for data transmission permission to the eNB. One is that the eNB configures a Scheduling Request (SR) resource for the UE, and the UE requests the data transmission permission from the eNB through the SR resource; The eNB does not configure the SR resource for the UE, but the UE performs the random access procedure first, and then performs the data transmission process.

After receiving the application data transmission permission of the UE, the eNB performs a resource scheduling decision to determine whether to provide a corresponding service for the UE. The smallest unit of eNB resource scheduling is a physical resource block, which is composed of a time domain resource and a frequency domain resource. The physical resource block is a time resource of 1 ms in the time domain and a frequency of 12 subcarriers in the frequency domain. Resources. The eNB completes data scheduling on the physical resource block. If the eNB decides to provide the service for the UE, the uplink transmission resource is allocated to the UE, and then the uplink access permission (Uplink Grant, referred to as "Uplink Grant" is sent to the UE through the Physical Downlink Control Channel ("PDCCH"). "UL grant", the UL grant includes information such as a modulation and coding scheme ("MCS") and a physical resource block ("PRB"). The UL grant tells the UE that the UL grant can be used. At which time and on which carrier the data is transmitted, and the modulation coding scheme employed, so that the UE can accurately transmit the data.

It should be understood that the foregoing requesting data transmission permission from the UE to the eNB is only responsible for telling the eNB that the UE has a resource requirement, and how many resources are needed to be notified to the eNB by the subsequent signaling interaction. Correspondingly, the eNB sends a license according to the application data, and may allocate a small amount of physical resources to the UE, for example, sufficient for the UE to report a power headroom report (PHR) and/or a buffer status report. (Buffer Status Report, referred to as "BSR").

Then, the UE reports the PHR to the eNB according to the physical resource and/or the modulation and coding mode indicated in the UL grant, to inform the eNB of its own power headroom state, or report the eNB to the eNB based on the physical resource and/or modulation and coding mode indicated in the UL grant. The BSR is to inform the eNB of the amount of data remaining to be transmitted.

If the UE has data transmission, the eNB allocates a suitable uplink transmission resource to the UE by using the PHR and/or the BSR reported by the UE, and then notifies the UE of the allocated uplink transmission resource by sending the UL grant to the UE. Report data.

FIG. 1 shows a basic procedure for a UE to report a PHR to an eNB in the current technology. In this example, the eNB is a base station corresponding to the licensed spectrum cell. In S11, the UE triggers the PHR. Specifically, for example, because the PHR related timer of the UE times out or the path loss of the UE serving cell exceeds the threshold, the PHR is triggered, and once the UE triggers the PHR, the PHR is always suspended. Hang the state until the corresponding power headroom information is generated. In S12, the eNB sends a UL grant to the UE through the PDCCH, and the UL grant includes information such as the MCS and the PRB. It should be understood that, in this step, the physical resource indicated by the UL grant is sufficient for the UE to report the power headroom report PHR. In S13, after successfully receiving the UL grant, the physical layer of the UE reads the information in the UL grant, constructs a MAC data unit (Protocol data unit, referred to as “PDU”), and then transmits the MAC PDU to the The physical layer and all the PHRs that have been triggered are deleted. It should be understood that the information in the UL grant is read, and the information indicating the MCS and the physical resources carried in the UL grant is specifically read. In S14, the physical eNB reports the MAC PDU to the eNB according to the physical resource and the MCS indicated by the UL grant received in the S12, so that the eNB can reasonably allocate the next uplink transmission resource to the UE according to the PHR reported by the UE. . In S15, for example, the UE needs to report data, and sends a scheduling request SR to the eNB. In S16, the eNB allocates an uplink transmission resource to the UE according to the PHR received in S14, and specifically, determines the size of the physical resource, the modulation and coding scheme MCS, and the like according to the PHR. In S17, the eNB sends a UL grant to the UE through the PDCCH, where the UL grant includes indication information indicating the size of the physical resource allocated for the UE in S16 and the modulation and coding manner. In S18, the UE reports the data to be transmitted to the eNB according to the physical resource indicated by the UL grant received in S17 and the modulation and coding manner.

As can be seen from the above, in the current technology, when the MAC entity of the UE generates a MAC PDU including the PHR, all the PHRs that have been triggered are cancelled.

At present, the 3rd Generation Partnership Project (3GPP) introduces a License Assisted Access (LAA) cell and performs carrier aggregation on the LAA cell and the licensed spectrum cell. (Carrier Aggregation, abbreviated as "CA"), it should be understood that the LAA cell and the licensed spectrum cell are used for carrier aggregation. Only the licensed spectrum cell can serve as the primary cell PCell. The LAA cell can only serve as the secondary cell (Secondary Cell, referred to as "SCell" for short). ). It should be understood that carrier aggregation is a technology in LTE/LTE-A. The UE can perform data transmission with multiple serving cells at the same time. The connection between any two cells can be considered as ideal, that is, the transmission delay can be ignored. In the embodiment of the present invention, the multiple serving cells include an authorized spectrum cell and an LAA cell.

In a scenario where the LAA cell and the licensed spectrum cell are used for carrier aggregation, the UE has multiple serving cells, including the LAA cell, and then, after the UE triggers the PHR, which serving cell of the multiple serving cells of the UE subsequently The reporting of the PHR depends on which of the multiple serving cells is the first to deliver the UL grant. It is assumed that the LAA cell in the multiple serving cells of the UE is first delivered. The UL grant, the UE reports the PHR to the eNB through the LAA cell.

It should be understood that before the UE sends the uplink data through the LAA cell, the process of Listening Before Listening (LBT) needs to be performed first. The LBT refers to that the UE needs to perform channel energy detection before transmitting the uplink data, if the detection is performed. When the channel energy is lower than a certain threshold, the channel is considered to be idle, and the channel can be used to transmit uplink data (also referred to as LBT success); otherwise, the channel is considered to be busy and cannot send uplink data (also referred to as LBT failure).

As shown in FIG. 1 , in the current technology, in the process of the UE reporting the PHR to the eNB, after the UE constructs the MAC PDU including the PHR by using the MAC entity, the UE cancels the triggered PHR when notifying the physical layer to transmit the MAC PDU. . That is to say, the PHR that has been triggered to be reported has been canceled before the MAC PDU is sent. In the scenario where the LAA cell and the licensed spectrum cell are used for carrier aggregation, if the UE chooses to send the MAC PDU through the LAA cell, after receiving the MAC PDU at the physical layer, the LBT process is first performed, and the PHR can be implemented only when the LBT is successful. The transmission, if the LBT fails, can not report the MAC PDU to the eNB, and at this time, the PHR that has been triggered has been canceled. It should be understood that the transmission of the PHR requires two steps: first, triggering, and secondly, obtaining an uplink transmission resource sufficient to carry the PHR. Therefore, in order to send a new PHR again, it is necessary to wait until the trigger condition of the next PHR is satisfied, and the UL grant indicating the new transmission sent by the eNB is received. It can be seen that in the scenario where the serving cell of the UE is the carrier aggregation of the LAA cell and the licensed spectrum cell, the existing method for transmitting the PHR reduces the reliability and timeliness of reporting the PHR, thereby affecting the eNB to allocate suitable uplink transmission for the UE. Resources.

For the above technical problem, the embodiment of the present invention provides a method for transmitting uplink data and a user equipment, which can effectively implement timely reporting of the PHR (or BSR).

FIG. 2 illustrates a method 100 for transmitting uplink data according to an embodiment of the present invention. Specifically, the method 100 is performed by a user equipment UE, and the method 100 includes:

S110, triggering a power headroom report PHR;

It should be understood that after the UE triggers the PHR, the PHR will remain in the suspended state, and it can also be understood that the PHR is in the transmitted state until the triggered PHR is cancelled. In other words, once the PHR is triggered, if the UE acquires the UL grant, the UE can send power headroom information to the eNB. If the PHR is not triggered, the UE will not send power headroom information to the eNB even if the UE acquires the UL grant.

Specifically, the UE triggers the PHR according to a preset trigger condition. Specifically, the trigger condition may be Is any one or more of the following conditions:

1) prohibiting the PHR timer from timing out, and at least one activated serving cell changes the path loss when the data is initially transmitted exceeds a preset threshold;

2) The periodic PHR timer expires;

3) Upper layer configuration or reconfiguration PHR function

4) Activate any SCell with an uplink;

5) The timer is disabled, and the power backoff of at least one active serving cell when the data is initially transmitted exceeds a certain threshold.

It should be understood that the triggering conditions listed above are merely examples and are not limiting.

S120. Receive a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell.

Specifically, the UL grant includes information such as a Modulation and Coding Scheme ("MCS") and a physical resource block ("PRB"), which is used to inform the UE which The data is transmitted on the physical resource block, and the modulation coding scheme adopted is adopted, so that the UE accurately transmits the uplink data.

Optionally, the first UL grant may be sent by the first serving cell to the UE, or may be sent by another serving cell to the UE, for example, the another serving cell is a primary cell of the UE, and the first serving cell It is the secondary cell of the UE.

Specifically, the UL grant is delivered to the UE by using a physical downlink control channel (Physical Downlink Control Channel, hereinafter referred to as "PDCCH").

It should be understood that, in the embodiment of the present invention, the spectrum resource used by the unlicensed spectrum cell is a cell of the unlicensed spectrum. Specifically, the unlicensed spectrum cell is specifically a Assisted Access (License Assisted Access (LAA)), and the LAA cell and the licensed spectrum cell are used as a carrier aggregation CA, and the LAA cell is a secondary cell. The unlicensed spectrum cell may also be a cell that can serve as the serving cell of the UE independently, which is not limited in this embodiment of the present invention.

S130. Generate first power headroom information according to the already triggered PHR and the first UL grant, and retain the already triggered PHR.

Specifically, the first power headroom information is generated by the MAC entity (ie, the MAC layer), where the first power headroom information carries the power headroom PH value of all the serving cells of the UE that have activated the uplink.

It should be understood that retaining the already triggered PHR means that the PHR is still in a suspended state, or The person is in a pending state.

It should be noted that, in the embodiment of the present invention, after the first power headroom information is generated, the PHR that has been triggered is not cancelled as in the existing process, but the PHR that has been triggered is retained.

S140. Send the first power headroom information to the first serving cell according to the first UL grant.

Specifically, the first power headroom information is sent to the first serving cell according to the modulation and coding mode MCS and physical resources and the information indicated by the first UL grant.

It should be understood that, in the embodiment of the present invention, the first power headroom information is sent to the first serving cell, where the first power headroom information may be directly sent to the first serving cell, or may be the first The serving cell sends a data packet or a packet including the first power headroom information. Specifically, for example, the MAC layer first constructs a PHR MAC CE according to the first power headroom information, and then assembles the PHR MAC CE into the MAC PDU. Then, the MAC PDU is sent to the first serving cell through the physical layer. The specific method for sending the first power headroom information is not limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, the S140 sends the first power headroom information to the first serving cell according to the first UL grant, including:

S140A, a first MAC protocol data unit ("PDU") is generated by the MAC entity, where the first MAC PDU includes the first power headroom information;

Specifically, the MAC entity generates the first MAC PDU according to the MCS and physical resource information indicated by the first UL grant.

S140B: Send the first MAC PDU to the first serving cell according to the first UL grant.

It should be understood that the first MAC PDU may include other related information in addition to the first power headroom information. The process of determining the MAC PDU is prior art and will not be described in detail herein.

It should be further understood that the first power headroom information is sent to the first serving cell in S140, specifically, the first power headroom information is sent to the eNB corresponding to the first serving cell, or may be expressed as The first serving cell sends the first power headroom information to an eNB corresponding to the first serving cell.

Optionally, in the embodiment of the present invention, after determining that the first power headroom information is successfully sent, the PHR that has been triggered may be cancelled.

It can be seen that the transmission method provided by the embodiment of the present invention does not cancel the PHR that has been triggered immediately after generating the power headroom information to be reported, but retains the PHR that has been triggered (also called This is to suspend the already triggered PHR) and then send the generated power to the eNB. The remaining amount information, after determining that the transmission is successful, can cancel the PHR that has been triggered. Therefore, the method provided by the embodiment of the present invention can ensure the timely transmission of the PHR to a certain extent compared with the prior art, and can effectively improve the transmission reliability of the PHR.

It should also be understood that, in the case that the serving cell of the UE includes the licensed spectrum cell and the LAA cell, it is equivalent to the licensed spectrum cell and the LAA cell as the carrier aggregation CA, wherein only the authorized spectrum cell can serve as the primary cell of the UE (Primary Cell, referred to as For the "PCell", it is assumed that one of the serving cell of the UE is the PCell of the UE, and the remaining serving cell is the secondary cell of the UE (Secondary Cell, referred to as "SCell"). It should be understood that the LAA cell only Can be used as the SCell of the UE. It should also be understood that the PCell may add an SCell to the UE by using Radio Resource Control (RRC) signaling, for example, adding one LAA cell as the SCell of the UE, and the RRC signaling includes the configuration of the LAA cell. The information is that the UE can use the LAA cell as the SCell by receiving the Activation MAC Control Element sent by the PCell.

It should be understood that, before the UE sends the uplink data in the LAA cell, it needs to contend for the uplink transmission resource. Specifically, by listening to the LBT process before competing resources, the data is sent only after successfully competing for the resource. Otherwise, the data cannot be send.

S141. After listening to the LBT process, the first resource is contending, and after the first resource is successfully queried, the first power headroom information is sent to the first serving cell based on the first resource, and the triggered PHR is cancelled. The first resource is an uplink transmission resource indicated by the first UL grant.

It should be understood that canceling the PHR that has been triggered refers to the state in which the PHR is no longer in suspension or pending, even if the UE acquires the UL grant, the action of transmitting the PHR (corresponding to the transmission power headroom information) is not performed. .

It should be understood that the LBT refers to performing energy detection on a channel. If the energy is below a certain threshold, the channel is considered to be idle, and above the threshold, the channel is occupied. At present, the LBT process mainly has the following types:

1) LBT without back-off, that is, the channel energy detection is lower than the threshold, and the back-off is not performed to continue the energy detection.

2) The LBT that is rolled back, that is, the channel energy detection is lower than the threshold, randomly generates a value x, and when the number of times the channel detection idle is reduced to 0, the channel energy detection is restarted.

3) Channel energy detection that is backed up in a fixed window, that is, channel energy detection is below the threshold, Channel energy detection for backoff within a time window.

4) Variable window fallback LBT, that is, channel energy detection is below the threshold, and channel energy detection for backoff is performed within a variable time window.

It should be understood that the physical layer may also compete for resource failure before transmitting data, that is, the LBT process fails. In this case, the first power headroom information is not sent, and the PHR that has been triggered is not cancelled, that is, the PHR that has been triggered is retained.

Optionally, in the embodiment of the present invention, the method 100 further includes:

S150. After failing to compete for the first resource, send the first power headroom information to the first serving cell, and continue to reserve the PHR that has been triggered.

As mentioned above, the UE implements the PHR, and needs to meet two conditions, one is to trigger the PHR, and the other is to receive the UL grant delivered by the eNB. It should be understood that, in the embodiment described in S150, the first power headroom information cannot be successfully transmitted in the current transmission process, and the generated PHR is not successfully transmitted. After the UL grant, the PHR can be reported again without having to wait for the next PHR trigger condition to be met to re-trigger the PHR.

Optionally, in the embodiment of the present invention, in a case that the first resource fails to be competed, that is, in the case that the first power headroom information is not sent, and the PHR that has been triggered remains, the method 100 further includes :

S160. Receive a second UL grant of the second serving cell.

S170. Generate second power headroom information according to the second UL grant and the already triggered PHR, and continue to reserve the already triggered PHR.

S180. The second power headroom information is sent to the second serving cell according to the second UL grant, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.

Specifically, as shown in FIG. 3, in S21, the UE triggers the PHR; in S22, the UE receives the first UL grant delivered by the LAA cell; in S23, the first MAC PDU including the PHR is generated by the MAC entity, and Retaining the PHR that has been triggered; in S24, performing an LBT process, if the LBT process succeeds, that is, competing for resources, sending a first MAC PDU to the LAA cell, and canceling the PHR that has been triggered (not shown in FIG. 3), if If the LBT process fails, the first MAC PDU is not sent, and the PHR that has been triggered is retained. In S25, it is determined that the LBT process in S24 fails, that is, there is no contention to the resource, and the first power headroom information cannot be sent to the LAA cell. The PHR that has been triggered is not canceled, that is, the trigger state of the LBT is retained; in 26, the UE receives the first a second UL grant sent by the second serving cell (illustrated by the authorized spectrum cell in FIG. 3); in S27, the second MAC PDU including the PHR is generated by the MAC entity, and the PHR that has been triggered is retained; in S28, The physical layer sends the second MAC PDU to the second serving cell, where the second serving cell may be an LAA cell, or may be an authorized spectrum cell. If the second serving cell is an LAA cell, the process returns to step S24, if the The second serving cell is the authorized spectrum cell, and the generated second MAC PDU is sent to the second serving cell through the physical layer according to the existing procedure.

It should be understood that, in the embodiment of the present invention, the second serving cell and the first serving cell may be the same serving cell, or may be different serving cells, which is not limited in this embodiment of the present invention.

As described above, in the embodiment of the present invention, in a scenario where the serving cell of the UE includes the LAA cell, the UE triggers the PHR, and receives the UL grant of the LAA cell, generates the first power headroom information, and notifies the physical layer to the LAA cell. When the first power headroom information is transmitted, the PHR that has been triggered is not cancelled. The physical layer contends for the uplink transmission resource before transmitting the first power headroom information, and cancels the PHR that has been triggered when the content is successfully contending for the resource and successfully transmits the first power headroom information. Otherwise, the PHR that has been triggered is retained. In the case that the transmission fails and the PHR that has been triggered is retained, when the UL grant is received again, the reporting of the PHR can be performed again, without having to wait for the trigger condition of the PHR to be satisfied again, as in the conventional technology, and after receiving the UL grant. Only then can PHR be reported.

Therefore, in the embodiment of the present invention, in the case that the PHR is successfully determined to be sent, the PHR that has been triggered is not cancelled, that is, the PHR that has been triggered is maintained, and the PHR that has been triggered is canceled after the transmission is successful, as compared with the current PHR. There are technologies that can effectively guarantee the reliability and timeliness of PHR transmission.

It should be understood that the LTE system uses the shared channel to transmit data. For the uplink data, the eNB allocates a UL grant to the UE. Only the UE that receives the UL grant can send the uplink data. If the uplink resource is not received, the UE cannot send the data. . For a UE that receives a UL grant sent by an eNB, it is necessary to transmit a data packet of a corresponding size according to the amount of data indicated by the eNB. Generally, one UE may have multiple service transmissions at the same time, correspondingly having multiple logical channels. The uplink resources allocated by the eNB to the UE are shared by multiple logical channels, so the uplink data packets sent by the UE usually include data from multiple logical channels. However, when the eNB allocates a UL grant, the uplink resource is not accurately allocated to each logical channel. Generally, after the UE obtains the UL grant from the eNB, it needs to determine which logical channel transmits the data by itself. This process is called logical channel priority. Level (Logical channel prioritization, abbreviated as "LCP").

When performing LCP processing, the UE needs to consider the priorities of different logical channels, and allocate corresponding uplink transmission resources to different logical channels according to the priority information. Generally, before performing LCP processing, the following types of MACs need to be considered. The priority order of the PDUs is as follows:

1) UL-CCCH data or a MAC control element including a C-RNTI;

2) BSR MAC control element, but does not include padding BSR;

3) PHR MAC control element (including extended PHR and Dual Connectivity PHR);

4) Logical channel data, except for UL-CCCH data;

5) Padding BSR.

In the embodiment of the present invention, if the previous PHR transmission fails, the LCP priority of the PHR (corresponding to "3) PHR MAC control element" above) is adjusted, for example, when the UL grant of the serving cell is received next time, for example. Improve the PHR in the above five priorities, thus ensuring the transmission reliability of the PHR. If the previous PHR transmission succeeds, the PHR is triggered again within a certain time threshold, and the UL grant of the serving cell is received at the same time, which can lower the priority of the PHR.

Optionally, in the embodiment of the present invention, the S170 generates the second power headroom information, including:

S171. Generate the second power headroom information by increasing a priority of the already triggered PHR.

Specifically, the MAC PDU including the second power headroom information is generated by increasing the priority of the PHR in the priority order 1) to 5) of generating the MAC PDU described above.

Specifically, as shown in FIG. 4, in S31, the UE triggers the PHR; in S32, the UE receives the first UL grant delivered by the LAA cell; in S33, the first MAC PDU including the PHR is generated by the MAC entity, and Retaining the PHR that has been triggered; in S34, performing an LBT process, if the LBT process succeeds, that is, competing for resources, sending a first MAC PDU to the LAA cell, and canceling the PHR that has been triggered (not shown in FIG. 4), if If the LBT process fails, the first MAC PDU is not sent, and the PHR that has been triggered is retained. In S35, it is determined that the LBT process in S34 fails, that is, no resources are contending for the first power headroom information, and the first power headroom information cannot be sent to the LAA cell. The PHR that has been triggered is not cancelled, that is, the trigger state of the LBT is reserved; in S36, the UE receives the second UL grant of the licensed spectrum cell; in S37, the LCP priority of the PHR is increased, and the transmission resource is preferentially allocated to the PHR; In S38, a second MAC PDU including a PHR is generated by using a MAC entity, Notifying the physical layer to send the second MAC PDU and retaining the PHR that has been triggered; in S39, transmitting the second MAC PDU to the authorized spectrum cell through the physical layer.

It should be understood that by assigning transmission resources to the PHR preferentially by increasing the LCP priority of the PHR in S37, the timeliness of transmitting the PHR can be improved.

Optionally, in S38, after the second MAC PDU is generated, the PHR that has been triggered may be cancelled. It should be understood that the UE transmits data by authorizing the spectrum cell without competing resources. Therefore, when the MAC entity generates a MAC PDU including the PHR, The MAC PDU is sent by the physical layer, and the MAC PDU can be sent successfully. Therefore, in this scenario, when the MAC PDU is generated, when the PHR that has been triggered is canceled, the embodiment of the present invention does not limit this.

Therefore, in the embodiment of the present invention, the PHR transmission fails during the current transmission, and after the next time the UL grant of the serving cell is received, the transmission reliability of the PHR can be improved by adjusting the LCP priority of the PHR.

In the conventional technology, when the primary cell PCell adds a secondary cell SCell to the UE through RRC signaling, for example, an LAA cell, when the UE wants to use the LAA cell, the Pcell sends an Activation Message (Activation MAC Control Element) to the UE, and the UE receives After the activation message, the LAA cell can be used, wherein after the UE receives the activation message, a PHR is triggered (corresponding to the "4" mentioned in the trigger condition for triggering the PHR described above to activate any one of the allocations. There is an uplink SCell").

In the embodiment of the present invention, in order to reduce the possibility that the UE transmits the PHR through the LAA cell, when the LAA cell is activated for the UE, the PHR is not triggered.

Optionally, in the embodiment of the present invention, the S110 triggers the power headroom report PHR, including:

Specifically, as shown in FIG. 5, in S41, the primary cell (authorized spectrum cell) configures a secondary cell LAA cell for the UE according to the service situation and the cell condition. Specifically, the primary cell adds one LAA cell to the UE through RRC signaling. The RRC signaling includes configuration information of the LAA cell. In S42, the spectrum cell is authorized to send an Activation MAC Control Element to the UE. In S43, after receiving the Activation MAC Control Element, the UE uses the LAA cell but does not trigger the PHR.

It should be understood that after S43, if the LAA cell sends a UL grant to the UE through the PDCCH, the UE will not report the PHR to the LAA cell unless there are other conditions that trigger the PHR.

Therefore, in the embodiment of the present invention, the primary cell of the UE does not trigger the PHR when the LAA cell is activated, and may reduce the probability of the UE transmitting the PHR through the LAA cell to a certain extent, thereby increasing the probability that the UE transmits the PHR through the authorized spectrum cell. In turn, the transmission reliability of the PHR can be improved.

It should be understood that the PHR generated by the UE through the MAC entity includes the power headroom PH value of all serving cells (uplink activated cells) of the UE, where the PH value refers to the maximum carrier transmit power of the UE and the carrier power limit is not considered. The difference in transmit power. The transmit power calculated without considering the upper limit of the carrier power can be understood as the carrier transmit power calculated by the UE according to the MCS allocated by the eNB and the resource block size. The carrier transmit power may be the transmit power of the PUCCH data, or the transmit power of the PUSCH data, or the transmit power of the data transmitted simultaneously on the PUCCH and the PUSCH. The PH may be a negative value, that is, the UE does not consider the carrier power upper limit and the calculated transmit power is greater than the actual maximum carrier transmit power. In this case, the UE data will be difficult to transmit successfully, which in turn affects data scheduling.

The PH of a cell refers to the power headroom of the cell at the time of data transmission of the PUSCH or the PUCCH, where the data transmission time generally refers to the fourth frame after the frame where the UE receives the UL grant, as shown in FIG. 6. Show. The PH value is calculated in advance before the data transmission time, and the specific advance depends on the capability of the UE. As shown in FIG. 6, the UE receives the UL grant from the eNB in subframe 1, and performs new data transmission in subframe 5. In

subframes

2, 3, and 4, the MAC entity of the UE constructs a MAC PDU including a PHR MAC Control Element. The PH value reported in the PHR MAC Control Element is the power headroom of the UE at the subframe 5. For any cell, if the UE sends PUSCH data, it will report a true type 1 PH value. Otherwise, a virtual type 1 PH value is reported. It should be understood that the type 1 PH of a cell refers to the power margin of the cell at the time of data transmission of the PUSCH or PUCCH. If the UE is configured to transmit the PUSCH and the PUCCH at the same time, the UE reports the type 2 PH of the primary cell in addition to the type 1 PH of the serving cell. If there is a PUCCH data transmission, the UE reports a true type 2 PH. If there is no PUCCH data transmission, the UE reports a virtual type 2 PH. It should be understood that the type 2 PH of the primary cell refers to the primary cell in the PUCCH and the PUSCH. The power headroom of the data transmission time.

However, for the LAA cell, if the LBT process of the LAA cell fails, data cannot be transmitted. Even if the UE has data to transmit in the LAA cell, when the LBT is actually performed during the transmission process, the resource may fail to be competed, and the data cannot be transmitted in practice. Therefore, according to the roots of the prior art It is unreasonable to determine the PH value of the LAA cell according to the data transmission requirement of the UE, which may cause the PH value to be inconsistent with the actual process, which may cause the next uplink transmission resource allocated by the eNB to be too small.

For the above problem, in the embodiment of the present invention, when the PHR is generated, the PH value of the LAA cell is filled with virtual values.

Optionally, in the embodiment of the present invention, the method 100 is performed by a user equipment UE, where the serving cell includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell is an activated cell with an uplink, where S140 generates first power headroom information, including:

Specifically, FIG. 7 shows a schematic diagram of a PHR including PH values of M+N cells, where M licensed spectrum cells and N LAA cells, the UE is configured to simultaneously transmit PUSCH and PUCCH functions, the first line The c1 to c7 are the serving cell index (cell index), P is used to indicate whether to perform power backoff, V is used to indicate whether the PH value is true or virtual, R is a reserved bit, and the second to fifth lines represent the main The PH of the cell is reported, where the second row and the third row indicate the type 2 PH report of the primary cell, where the PH (Type 2, primary cell) in the second row indicates the type 2 PH value of the primary cell of the UE, where Type 2 The PH value calculated by the UE according to the resources allocated by the PUSCH and the PUCCH in the case of configuring the simultaneous PUSCH and PUCCH transmission. P _cmax,c in the third row refers to the maximum carrier transmit power of the primary cell in the case where the simultaneous transmission of the PUSCH and the PUCCH is configured. The fourth row and the fifth row indicate the type 1 PH report of the primary cell. As shown in FIG. 5, in the embodiment of the present invention, for the LAA cell, corresponding to the 10th to 13th rows in FIG. 5, the UE may be in the LAA cell regardless of whether there is no PUSCH data or if the PUSCH data is reported. The type 1PH value is always populated with dummy values. For the authorized spectrum cell as the secondary cell, the type 1 PH value is determined according to whether there is PUSCH transmission, and if there is PUSCH transmission, a true type 1 PH is reported; if there is no PUSCH transmission, a virtual type 1 PH is reported.

It should be understood that the PHR reporting format involved in the embodiment of the present invention is only one of the representation manners, and is not limited by the representation manner, and may include the final content.

It should be understood that the PH value involved in the embodiment of the present invention is a virtual value, and the virtual value refers to a PH value that is calculated according to a reference format specified by the protocol without PUSCH transmission.

Therefore, in the embodiment of the present invention, for the licensed spectrum cell, in the PHR MAC Control The PH value reported in the element is true. For the activated LAA cell with the uplink, the PH value reported in the PHR MAC Control Element is filled with the virtual value, which can prevent the uplink transmission resource allocated by the eNB from being improper.

It should be understood that the licensed spectrum cell in the embodiment of the present invention may also be referred to as a Normal cell.

FIG. 8 illustrates a method 200 for transmitting uplink data according to another embodiment of the present invention. For example, the method 200 can be performed by a user equipment UE, and the method 200 includes:

S210, the UE triggers a power headroom report PHR;

S220. Receive a first uplink scheduling grant UL grant of the first serving cell.

S230. When the first serving cell is an unlicensed spectrum cell, retain the triggered PHR.

Specifically, when the first serving cell is an unlicensed spectrum cell, power headroom information is not generated, and the PHR that has been triggered is retained.

S240. When the first serving cell is an authorized spectrum cell, generate first power headroom information according to the triggered PHR and the first UL grant, and send the first power cell to the first serving cell according to the first UL grant. The first power headroom information and cancel the PHR that has been triggered.

Therefore, in the embodiment of the present invention, when the UL grant for granting the secondary access cell is received, the PHR is not sent to the unlicensed spectrum cell, and only when the UL grant of the licensed spectrum cell is received, the authorized spectrum cell is sent to the authorized spectrum cell. By transmitting the PHR, it is possible to avoid the problem that the transmission reliability of the PHR transmitted through the unlicensed spectrum cell is poor.

It should be understood that, in the embodiment of the present invention, in S230, it may be performed according to a conventional process, which is not limited by the embodiment of the present invention.

It should be understood that the UE triggers the PHR according to a preset trigger condition. Specifically, the trigger condition may be any one or more of the following conditions:

2) The periodic PHR timer expires;

3) Upper layer configuration or reconfiguration PHR function

4) Activate any SCell with an uplink;

Specifically, as shown in FIG. 9, in S51, the UE triggers the PHR. In S52, the LAA Cell first delivers the first UL grant to the UE compared to the licensed spectrum cell. In S53, the first MAC PDU not including the PHR is constructed by the MAC entity, and the physical layer is notified to transmit the first MAC PDU, and the PHR that has been triggered is reserved. In S54, the physical layer transmits the MAC PDU through an LBT procedure, the specific process being the same as S24 and S25 described above in connection with FIG. In S55, receiving a second UL grant from the authorized spectrum cell; in S56, constructing a second MAC PDU including the PHR by the MAC entity, transmitting the second MAC PDU to the physical layer, and canceling the PHR that has been triggered; The second MAC PDU including the PHR is sent to the eNB by the authorized spectrum cell.

Therefore, in the embodiment of the present invention, the PHR is not reported by the LAA cell, and the PHR is generated only after receiving the UL grant delivered by the licensed spectrum cell, and the PHR is reported by the authorized spectrum cell, which can effectively improve the reporting of the PHR. Timeliness and reliability.

As mentioned above, the UE implements the reporting of the PHR, and needs to meet two conditions, one is to trigger the PHR (in other words, the triggering state of the PHR is valid), and the other is to receive the UL grant delivered by the eNB. It should be understood that, in the embodiment described in S220, the PHR is not sent to the first serving cell, but since the PHR that has been triggered is retained, the next time the UL grant sent by the eNB is received, the reporting PHR can be performed again. There is no need to wait for the trigger condition of the next PHR to be satisfied.

Optionally, in the embodiment of the present invention, when the first serving cell is an unlicensed spectrum cell, power headroom information is not generated.

Optionally, in the embodiment of the present invention, in the case that the first serving cell is an unlicensed spectrum cell, and the PHR is not sent to the first serving cell, and the PHR has been triggered, the method 200 further includes:

S250. Receive a second UL grant of the second serving cell.

S260. When the second serving cell is an authorized spectrum cell, according to the triggered PHR. And generating, by the second UL grant, the second power headroom information, and sending, according to the second UL grant, the second power headroom information to the second serving cell, and the already triggered PHR.

Optionally, in the embodiment of the present invention, S260 generates second power headroom information, including:

Specifically, as described above in connection with FIG. 4, for the sake of brevity, it will not be described in detail herein.

Optionally, in the embodiment of the present invention, the S210 triggers the power headroom report PHR, including:

Specifically, as described above in connection with FIG. 5, it will not be described in detail herein.

Optionally, in the embodiment of the present invention, the method is performed by the user equipment UE, and the service of the UE is The serving cell includes an authorized spectrum cell and an unlicensed spectrum cell, and the serving cell is an activated cell with an uplink, where the S240 generates the first power headroom information, including:

Specifically, as shown in FIG. 7 , the related descriptions are described in detail above, and details are not described herein again.

In the embodiment of the present invention, the PH value reported in the PHR MAC Control Element is true for the licensed spectrum cell, and the PH value reported in the PHR MAC Control Element is filled with the virtual value for the activated LAA cell with the uplink. The uplink transmission resources allocated by the eNB can be avoided to some extent.

It should be understood that the

transmission methods

100 and 200 provided by the embodiments of the present invention are also applicable to the reporting of other MAC Control elements, such as a Buffer Status Report (BSR). The buffer status report BSR process informs the eNB that the total number of data shared by the UE needs to be sent in the uplink buffer to provide uplink scheduling information for the eNB. The data reported by the BSR includes all PDUs and SDUs in the RLC and PDCP buffers. The BSR process requires RRC to configure two timers, Periodic BSR-Timer and retx BSR-Timer.

FIG. 10 is a schematic flowchart of a method 300 for transmitting uplink data according to an embodiment of the present invention. The method 300 includes, for example, a user equipment UE, and the method 300 includes:

S310. The UE triggers a buffer status report BSR.

S320. The first uplink scheduling grant UL grant is received by the first serving cell, where the first serving cell is an unlicensed spectrum cell.

S330, generating, according to the triggered BSR and the first UL grant, first buffer state information, and retaining the BSR that has been triggered;

S340. The first buffer status information is sent to the first serving cell according to the first UL grant.

In the embodiment of the present invention, the triggered BSR is not cancelled before the generated BSR is successfully sent. The BSR (also referred to as the BSR that has been triggered by the suspension) does not cancel the BSR that has been triggered until the physical layer successfully sends the generated BSR. Compared with the prior art, the BSR can be guaranteed to be transmitted in a timely manner. Effectively improve the transmission reliability of the BSR.

In S310, specifically, the BSR triggering conditions include the following situations:

(1) Regular BSR (Regular BSR): There is a logical channel belonging to a certain logical channel group, and there is uplink data to be transmitted (such as RLC/PDCP control information and service data, etc.) in the corresponding RLC or PDCP entity; Or there is a logical channel whose priority is higher than any channel belonging to a certain logical channel group, and data needs to be sent. The BSR triggered by these conditions is called the “conventional BSR”.

(2) Periodic BSR (Periodic BSR): If the periodicBSR-Timer is configured, the periodic BSR is triggered when the periodicBSR-Timer times out.

(3) Padding BSR: If the resource allocated by the eNodeB accommodates the transmission data, and the remaining resources are sufficient to accommodate the MAC CE of the corresponding BSR and the corresponding MAC header, the padding BSR will be triggered. That is, the padding BSR mechanism allows the remaining uplink resources to be used for the BSR.

Optionally, in the embodiment of the present invention, the S340 sends the first buffer status information to the first serving cell according to the first UL grant, including:

Optionally, in the embodiment of the present invention, the method 300 further includes:

S350. After failing to compete for the first resource, send the first buffer status information to the first serving cell, and continue to reserve the BSR that has been triggered.

Optionally, in the embodiment of the present invention, in a case that the contention of the first resource is unsuccessful, that is, the first buffer state information is not sent, and the BSR that has been triggered is retained, the method 300 further includes:

S360. Receive a second UL grant of the second serving cell.

S370. Generate second buffer state information according to the triggered BSR and the second UL grant, and continue to reserve the BSR that has been triggered.

S380. The second buffer status information is sent to the second serving cell according to the second UL grant, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.

Optionally, in the embodiment of the present invention, S370 generates second buffer state information, including:

The foregoing processing procedure for the BSR is similar to the description of the PHR in the foregoing transmission method 100, and details are not described herein again.

FIG. 11 is a schematic flowchart of a method 400 for transmitting uplink data according to another embodiment of the present invention. The method 400 includes, for example, a user equipment UE, and the method 400 includes:

S410. The UE triggers a buffer status report BSR.

S420. Receive a first uplink scheduling grant UL grant of the first serving cell.

S430, when the first serving cell is an unlicensed spectrum cell, retaining the BSR that has been triggered;

S440, when the first serving cell is an authorized spectrum cell, generating first buffer state information according to the triggered BSR and the first UL grant, and sending, according to the first UL grant, the first serving cell to the first serving cell The generated first buffer status information and cancel the BSR that has been triggered.

Therefore, in the embodiment of the present invention, when the UL grant for granting the secondary access cell is received, the BSR is not sent to the unlicensed spectrum cell, and only when the UL grant of the licensed spectrum cell is received, the authorized spectrum cell is sent to the authorized spectrum cell. By transmitting the BSR, it is possible to avoid the problem that the transmission reliability of the BSR transmitted through the unlicensed spectrum cell is poor.

Optionally, in the embodiment of the present invention, when the first serving cell is an unlicensed spectrum cell, buffer state information is not generated.

Optionally, in the embodiment of the present invention, if the first serving cell is an unlicensed spectrum cell, that is, if the BSR is not sent to the first serving cell, and the BSR that has been triggered is retained, the method 400 is further performed. include:

S450. Receive a second UL grant of the second serving cell.

S460. When the second serving cell is an authorized spectrum cell, generate second buffer state information according to the triggered BSR and the second UL grant, and send the second serving cell to the second serving cell according to the second UL grant. The second buffer status information and cancel the BSR that has been triggered.

Optionally, in the embodiment of the present invention, the S450 generates the second buffer state information, including:

The foregoing processing procedure for the BSR is similar to the description of the PHR in the foregoing transmission method 200, and details are not described herein again.

The method for transmitting uplink data according to an embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 11, and a user equipment according to an embodiment of the present invention will be described below with reference to FIG. 12 to FIG.

FIG. 12 shows a schematic block diagram of a user equipment 500 according to an embodiment of the present invention. The user equipment 500 includes:

a triggering module 510, configured to trigger a power headroom report PHR;

The receiving module 520 is configured to receive a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell;

The generating module 530 is configured to generate first power headroom information according to the PHR that the triggering module has triggered and the first UL grant that is received by the receiving module, and retain the PHR that has been triggered by the triggering module;

The sending module 540 is configured to send the first power headroom information generated by the generating module to the first serving cell according to the first UL grant.

Therefore, after generating the power headroom information to be reported, the user equipment 500 according to the embodiment of the present invention does not cancel the PHR that has been triggered immediately, as in the prior art, but retains the PHR that has been triggered (also referred to as PHR). To suspend the already triggered PHR, the generated power headroom information is then sent to the eNB, and if the transmission is successful, the already triggered PHR is cancelled. Therefore, the method provided by the embodiment of the present invention can ensure the timely transmission of the PHR to a certain extent compared with the prior art, and can effectively improve the transmission reliability of the PHR.

Optionally, in the embodiment of the present invention, the sending module is specifically configured to: after listening to the LBT process, the first resource is contending, and after the first resource is successfully contending, the first resource is used according to the first resource to the first serving cell. Sending the first power headroom information, and canceling the PHR that has been triggered by the triggering module, where the first resource is an uplink transmission resource indicated by the first UL grant.

Optionally, in the embodiment of the present invention, the sending module is further configured to: after the contention of the first resource fails, send the first power headroom information to the first serving cell, and continue to keep the triggered PHR.

Optionally, in the embodiment of the present invention, in a case that the sending module fails to compete for the first resource, the receiving module is further configured to receive a second UL grant of the second serving cell;

The generating module is configured to generate second power headroom information according to the second UL grant received by the receiving module and the PHR that has been triggered by the triggering module, and continue to retain the PHR that has been triggered by the triggering module;

Optionally, in the embodiment of the present invention, the generating module is specifically configured to generate the second power headroom information by increasing a priority of the PHR that the triggering module has triggered.

Optionally, in the embodiment of the present invention, the triggering module is specifically configured to: trigger the PHR according to a preset triggering condition, where the preset triggering condition does not include activating an unlicensed spectrum cell that is configured with an uplink.

Optionally, in the embodiment of the present invention, the serving cell of the UE includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell is an activated cell with an uplink, where the generating module is specifically configured to generate The first power headroom information includes a power headroom value of each cell in the serving cell, where the power headroom value of the unlicensed spectrum cell is a virtual value.

It should be understood that the user equipment 500 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 500 are respectively implemented for The corresponding processes of the respective methods in FIG. 11 to FIG. 11 are not described herein again for the sake of brevity.

FIG. 13 shows a schematic block diagram of a user equipment 600 according to an embodiment of the present invention. The user equipment 600 includes:

a triggering module 610, configured to trigger a power headroom report PHR;

The receiving module 620 is configured to receive a first uplink scheduling grant UL grant of the first serving cell;

The processing module 630 is configured to: when the first serving cell is an unlicensed spectrum cell, retain the PHR that has been triggered by the triggering module;

The processing module 630 is further configured to: when the first serving cell is an authorized spectrum cell, generate a first power headroom information according to the PHR that has been triggered by the triggering module and the first UL grant received by the receiving module, and according to the The first UL grant sends the first power headroom information to the first serving cell, and cancels the already triggered PHR.

Therefore, in the embodiment of the present invention, the PHR is not reported by the LAA cell, and only after receiving the UL grant delivered by the licensed spectrum cell, the corresponding PHR is generated, and the authorized frequency is generated. Reporting the PHR in the spectrum cell can effectively improve the timeliness and reliability of reporting the PHR.

Optionally, in the embodiment of the present invention, the processing module is further configured to: when the first serving cell is an unlicensed spectrum cell, does not generate power headroom information.

Optionally, in the embodiment of the present invention, in a case where the first serving cell is an unlicensed spectrum cell,

The processing module is further configured to: when the second serving cell is an authorized spectrum cell, generate second power headroom information according to the triggered PHR and the second UL grant, and according to the second UL grant, The second serving cell sends the second power headroom information and the PHR that has been triggered.

Optionally, in the embodiment of the present invention, the processing module is further configured to generate the second power headroom information by increasing a priority of the PHR that the triggering module has triggered.

Optionally, in the embodiment of the present invention, the serving cell of the UE includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell is an activated cell with an uplink, where the processing module is specifically used when When the first serving cell is a licensed spectrum cell, the first power headroom information is generated according to the PHR that has been triggered by the triggering module and the first UL grant received by the receiving module, where the first power headroom information includes the serving cell. a power headroom value of each of the cells, wherein the power headroom value of the unlicensed spectrum cell is a virtual value.

It should be understood that the user equipment 600 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 600 are respectively implemented in order to implement the map. The corresponding processes of the respective methods in FIG. 11 to FIG. 11 are not described herein again for the sake of brevity.

FIG. 14 shows a schematic block diagram of a user equipment 700 according to an embodiment of the present invention. The user equipment 700 includes:

a triggering module 710, configured to trigger a buffer status report BSR;

The receiving module 720 is configured to receive a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell;

The generating module 730 is configured to generate first buffer state information according to the BSR that has been triggered by the triggering module and the first UL grant received by the receiving module, and keep the trigger module that has been triggered. BSR;

The sending module 740 is configured to send, according to the first UL grant received by the receiving module, the first buffer state information generated by the generating module to the first serving cell.

In the embodiment of the present invention, the BSR that has been triggered (which may also be called a BSR that has been triggered) is not canceled until the generated BSR is successfully sent, until the physical layer successfully determines that the generated BSR is successfully sent. Compared with the prior art, the BSR can guarantee the timely transmission of the BSR to a certain extent, and can effectively improve the transmission reliability of the BSR.

Optionally, in the embodiment of the present invention, the sending module is specifically configured to: after listening to the LBT process, the first resource is contending, and after the first resource is successfully contending, the first resource is used according to the first resource to the first serving cell. And sending the first buffer status information, and canceling the BSR that is triggered by the triggering module, where the first resource is an uplink transmission resource indicated by the first UL grant.

Optionally, in the embodiment of the present invention, the sending module is further configured to: after the contention of the first resource fails, send the first buffer status information to the first serving cell, and continue to keep the trigger module already The triggered BSR.

Optionally, in the embodiment of the present invention, when the contention of the first resource fails, the receiving module is further configured to receive the second UL grant of the second serving cell;

Optionally, in the embodiment of the present invention, the generating module is specifically configured to generate the second buffer state information by increasing a priority of the BSR.

It should be understood that the user equipment 700 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 700 are respectively implemented for The corresponding processes of the respective methods in FIG. 11 to FIG. 11 are not described herein again for the sake of brevity.

FIG. 15 shows a schematic block diagram of a user equipment 800 according to an embodiment of the present invention. The user equipment 800 includes:

a triggering module 810, configured to trigger a buffer status report BSR;

The receiving module 820 is configured to receive a first uplink scheduling grant UL grant of the first serving cell;

The processing module 830 is configured to: when the first serving cell is an unlicensed spectrum cell, and keep the BSR triggered by the triggering module;

The processing module 830 is further configured to: when the first serving cell is an authorized spectrum cell, generate a first buffer state information according to the BSR that has been triggered by the triggering module and the first UL grant received by the receiving module, and The first UL grant sends the generated first buffer state information to the first serving cell, and cancels the BSR that has been triggered.

Optionally, in the embodiment of the present invention, the processing module is further configured to: when the first serving cell is an unlicensed spectrum cell, does not generate buffer state information.

Optionally, in the embodiment of the present invention, the processing module is further configured to generate the second buffer state information by increasing a priority of the BSR that the trigger module has triggered.

It should be understood that the user equipment 800 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 800 are respectively implemented in order to implement the map. The corresponding processes of the respective methods in FIG. 11 to FIG. 11 are not described herein again for the sake of brevity.

As shown in FIG. 16, an embodiment of the present invention further provides a network device 900, which includes a processor 910, a memory 920, a bus system 930, a receiver 940, and a transmitter 950. The processor 910, the memory 920, the receiver 940, and the transmitter 950 are connected by a bus system 930 for storing instructions for executing instructions stored in the memory 920 to control the receiver 940 to receive. Signal and control transmitter 950 to send a signal. The processor 910 is configured to trigger a power headroom report PHR, and the receiver 940 is configured to receive the first service. The first uplink scheduling grant UL grant, the first serving cell is an unlicensed spectrum cell, and the processor 910 is configured to generate first power headroom information according to the triggered PHR and the first UL grant, And the PHR that has been triggered is reserved; the transmitter 950 is configured to send the first power headroom information to the first serving cell according to the first UL grant.

Therefore, after generating the power headroom information to be reported, the user equipment provided by the embodiment of the present invention does not immediately cancel the PHR that has been triggered as in the prior art, but retains the PHR that has been triggered (also referred to as PHR). The already triggered PHR is suspended, and then the generated power headroom information is sent to the eNB, and if the transmission is successful, the already triggered PHR is cancelled. Therefore, the method provided by the embodiment of the present invention can ensure the timely transmission of the PHR to a certain extent compared with the prior art, and can effectively improve the transmission reliability of the PHR.

Optionally, in the embodiment of the present invention, the transmitter 950 is configured to: after listening to the LBT process, the first resource is contending, and after the first resource is successfully contending, the first resource is used according to the first resource to the first serving cell. Sending the first power headroom information, and canceling the already triggered PHR, where the first resource is an uplink transmission resource indicated by the first UL grant.

Optionally, in the embodiment of the present invention, the transmitter 950 is configured to: after the contention of the first resource fails, send the first power headroom information to the first serving cell, and continue to keep the triggered PHR.

Optionally, in the embodiment of the present invention, in case the contention of the first resource fails, the receiver 940 is configured to receive the second UL grant of the second serving cell, and the processor 910 is configured to: according to the second UL And the PHR that has been triggered to generate the second power headroom information, and continue to hold the PHR that has been triggered; the transmitter 950 is configured to send the second power to the second serving cell according to the second UL grant The remaining information, wherein the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.

Optionally, in the embodiment of the present invention, the processor 910 is configured to generate the second power headroom information by increasing a priority of the PHR that has been triggered.

Optionally, in the embodiment of the present invention, the processor 910 is configured to trigger the PHR according to a preset trigger condition, where the preset trigger condition does not include activating an unlicensed spectrum cell that is configured with an uplink.

Optionally, in the embodiment of the present invention, the serving cell of the UE includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell is an activated cell with an uplink, and the processor 910 is configured to generate the cell. A power headroom information, where the first power headroom information includes a power headroom value of each cell in the serving cell, where the power headroom value of the unlicensed spectrum cell is a virtual value.

It should be understood that, in the embodiment of the present invention, the processor 910 may be a central processing unit ("CPU"), and the processor 910 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 920 can include read only memory and random access memory and provides instructions and data to the processor 910. A portion of the memory 920 may also include a non-volatile random access memory. For example, the memory 920 can also store information of the device type.

The bus system 930 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 930 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 910 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 920, and the processor 910 reads the information in the memory 920 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

It should be understood that the user equipment 900 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and may correspond to the user equipment 500 according to the embodiment of the present invention, and each of the user equipments 900 The above and other operations and/or functions of the modules are respectively implemented in order to implement the respective processes of the respective methods in FIG. 1 to FIG. 11 , and are not described herein again for brevity.

As shown in FIG. 17, an embodiment of the present invention further provides a network device 1000, which includes a processor 1010, a memory 1020, a bus system 1030, a receiver 1040, and a transmitter 1050. The processor 1010, the memory 1020, the receiver 1040, and the transmitter 1050 are connected by a bus system 1030. The memory 1020 is configured to store instructions for executing the instructions stored by the memory 1020 to control the receiver 1040 to receive. Signal, and control transmitter 1050 to send a signal. The processor 1010 is configured to: trigger a power headroom report PHR; the receiver 1040 is configured to receive a first uplink scheduling grant UL grant of the first serving cell; the processor 1010 is further configured to: when the first serving cell is The unlicensed spectrum cell retains the already triggered PHR; the processor 1010 is further configured to: when the first serving cell is an authorized spectrum cell, according to The triggered PHR and the first UL grant generate first power headroom information, and send the first power headroom information to the first serving cell according to the first UL grant, and cancel the triggered PHR.

Optionally, in the embodiment of the present invention, the processor 1010 is configured to: when the first serving cell is an unlicensed spectrum cell, does not generate power headroom information.

Optionally, in the embodiment of the present invention, the processor 1010 is configured to: when the first serving cell is an unlicensed spectrum cell, the receiver 1040 is configured to receive the second UL grant of the second serving cell. The processor 1010 is configured to: when the second serving cell is an authorized spectrum cell, generate second power headroom information according to the triggered PHR and the second UL grant, and according to the second UL grant, The second serving cell sends the second power headroom information and the PHR that has been triggered.

Optionally, in the embodiment of the present invention, the processor 1010 is configured to generate the second power headroom information by increasing a priority of the already triggered PHR.

Optionally, in the embodiment of the present invention, the processor 1010 is configured to trigger the PHR according to a preset trigger condition, where the preset trigger condition does not include activating an unlicensed spectrum cell that is configured with an uplink.

Optionally, in the embodiment of the present invention, the serving cell of the user equipment 1000 includes an authorized spectrum cell and an unlicensed spectrum cell, where the serving cell is an activated cell with an uplink, where the processor 1010 is configured to use And generating the first power headroom information, where the first power headroom information includes a power headroom value of each cell in the serving cell, where a power headroom value of the unlicensed spectrum cell is a virtual value.

It should be understood that, in the embodiment of the present invention, the processor 1010 may be a central processing unit ("CPU"), and the processor 1010 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 1020 can include read only memory and random access memory and provides instructions and data to the processor 1010. A portion of the memory 1020 may also include a non-volatile random access memory. For example, the memory 1020 can also store information of the device type.

The bus system 1030 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as the bus system 1030 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1010 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1020, and the processor 1010 reads the information in the memory 1020 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

It should be understood that the user equipment 1000 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and may correspond to the user equipment 600 according to the embodiment of the present invention, and each of the user equipments 1000 The above and other operations and/or functions of the modules are respectively implemented in order to implement the respective processes of the respective methods in FIG. 1 to FIG. 11 , and are not described herein again for brevity.

As shown in FIG. 18, an embodiment of the present invention further provides a network device 1100. The network device 1100 includes a processor 1110, a memory 1120, a bus system 1130, a receiver 1140, and a transmitter 1150. The processor 1110, the memory 1120, the receiver 1140, and the transmitter 1150 are connected by a bus system 1130. The memory 1120 is configured to store an instruction, and the processor 1110 is configured to execute the instruction stored by the memory 1120 to control the receiver 1140 to receive. Signal and control the transmitter 1150 to send a signal. The processor 1110 is configured to: trigger a buffer status report BSR; the receiver 1140 is configured to receive a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell; and the processor 1110 And generating, according to the triggered BSR and the first UL grant, the first buffer state information, and retaining the BSR that has been triggered; the sender 1150 is configured to send, according to the first UL grant, the first serving cell Send the first buffer status information.

Optionally, in the embodiment of the present invention, the transmitter 1150 is configured to: after listening to the LBT process, competing for the first resource, and after competing for the first resource, the first service is used according to the first resource. The serving cell sends the first buffer status information, and cancels the BSR that has been triggered. The first resource is an uplink transmission resource indicated by the first UL grant.

Optionally, in the embodiment of the present invention, the transmitter 1150 is configured to: after the contention of the first resource fails, send the first buffer status information to the first serving cell, and continue to reserve the BSR that has been triggered. .

Optionally, in the embodiment of the present invention, in case the contention of the first resource fails, the receiver 1140 is configured to receive the second UL grant of the second serving cell;

The processor 1110 is configured to generate second buffer state information according to the triggered BSR and the second UL grant, and continue to reserve the BSR that has been triggered;

The transmitter 1150 is configured to send the second buffer status information to the second serving cell according to the second UL grant, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.

Optionally, in the embodiment of the present invention, the processor 1110 is configured to generate the second buffer state information by increasing a priority of the BSR.

It should be understood that, in the embodiment of the present invention, the processor 1110 may be a central processing unit ("CPU"), and the processor 1110 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 1120 can include read only memory and random access memory and provides instructions and data to the processor 1110. A portion of the memory 1120 can also include a non-volatile random access memory. For example, the memory 1120 can also store information of the device type.

The bus system 1130 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 1130 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1110 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1120, and the processor 1110 reads the information in the memory 1120. The steps of the above method are completed in combination with the hardware. To avoid repetition, it will not be described in detail here.

It should be understood that the user equipment 1100 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and may correspond to the user equipment 700 according to the embodiment of the present invention, and each of the user equipment 1100 The above and other operations and/or functions of the modules are respectively implemented in order to implement the respective processes of the respective methods in FIG. 1 to FIG. 11 , and are not described herein again for brevity.

As shown in FIG. 19, an embodiment of the present invention further provides a network device 1200. The network device 1200 includes a processor 1210, a memory 1220, a bus system 1230, a receiver 1240, and a transmitter 1250. The processor 1210, the memory 1220, the receiver 1240, and the transmitter 1250 are connected by a bus system 1230 for storing instructions, and the processor 1210 is configured to execute instructions stored by the memory 1220 to control the receiver 1240 to receive. Signal and control transmitter 1250 to send a signal. The processor 1210 is configured to: trigger a buffer status report BSR; the receiver 1240 is configured to receive a first uplink scheduling grant UL grant of the first serving cell; and the processor 1210 is configured to: when the first serving cell is unlicensed When the spectrum cell is in the spectrum, the BSR is triggered, and the processor 1210 is configured to: when the first serving cell is the authorized spectrum cell, generate the first buffer state information according to the triggered BSR and the first UL grant, And sending the generated first buffer state information to the first serving cell according to the first UL grant, and canceling the BSR that has been triggered.

Optionally, in the embodiment of the present invention, the processor 1210 is configured to not generate buffer state information when the first serving cell is an unlicensed spectrum cell.

Optionally, in the embodiment of the present invention, in a case that the first serving cell is an unlicensed spectrum cell, the receiver 1240 is configured to receive a second UL grant of the second serving cell;

The processor 1110 is configured to: when the second serving cell is an authorized spectrum cell, generate second buffer state information according to the triggered BSR and the second UL grant, according to the second UL grant, to the first The second serving cell sends the second buffer status information, and cancels the BSR that has been triggered.

Optionally, in the embodiment of the present invention, the processor 1210 is configured to improve the BSR. The first level generates the second buffer status information.

It should be understood that, in the embodiment of the present invention, the processor 1210 may be a central processing unit ("CPU"), and the processor 1210 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 1220 can include read only memory and random access memory and provides instructions and data to the processor 1210. A portion of the memory 1220 may also include a non-volatile random access memory. For example, the memory 1220 can also store information of the device type.

The bus system 1230 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 1230 in the figure.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1210 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1220, and the processor 1210 reads the information in the memory 1220 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.

It should be understood that the user equipment 1200 according to the embodiment of the present invention may correspond to the user equipment of the uplink data transmission method of the embodiment of the present invention, and may correspond to the user equipment 800 according to the embodiment of the present invention, and each of the user equipments 1200 The above and other operations and/or functions of the modules are respectively implemented in order to implement the respective processes of the respective methods in FIG. 1 to FIG. 11 , and are not described herein again for brevity.

It should be understood that the various numbers of the first, second, and the like, which are referred to herein, are merely for the convenience of the description and are not intended to limit the scope of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

It should be understood that the size of the serial numbers of the above processes does not imply in various embodiments of the present invention. The order of execution, the order of execution of each process should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention.

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

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

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

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

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

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

The above is only a 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 appended claims.

Claims

A method for transmitting uplink data, characterized in that the method comprises:

Trigger power headroom report PHR;

Receiving a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell;

Generating first power headroom information according to the already triggered PHR and the first UL grant, and retaining the already triggered PHR;

And transmitting, according to the first UL grant, the first power headroom information to the first serving cell.
The method according to claim 1, wherein the transmitting the first power headroom information to the first serving cell according to the first UL grant comprises:

By first listening to the LBT process, the first resource is contending, and after the first resource is successfully queried, the first power headroom information is sent to the first serving cell based on the first resource, and the The triggered PHR, the first resource is an uplink transmission resource indicated by the first UL grant.
The method of claim 2, wherein the method further comprises:

After the first resource fails to be contending, the first power headroom information is not sent to the first serving cell, and the PHR that has been triggered is retained.
The method according to claim 3, wherein, in the case that the competition for the first resource fails, the method further comprises:

Receiving a second UL grant of the second serving cell;

Generating second power headroom information according to the second UL grant and the already triggered PHR, and continuing to reserve the already triggered PHR;

And sending, according to the second UL grant, the second power headroom information to the second serving cell, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.
The method according to claim 4, wherein the generating the second power headroom information comprises:

The second power headroom information is generated by increasing a priority of the already triggered PHR.
The method according to any one of claims 1 to 5, wherein the trigger power headroom report PHR comprises:

The PHR is triggered according to a preset trigger condition, and the preset trigger condition does not include an activation Upstream unlicensed spectrum cell.
The method according to any one of claims 1 to 6, wherein the method is performed by a user equipment UE, and the serving cell of the UE comprises an authorized spectrum cell and an unlicensed spectrum cell, wherein the serving cell is An activated cell with an uplink, wherein the generating the first power headroom information includes:

Generating the first power headroom information, where the first power headroom information includes a power headroom value of each cell in the serving cell, where a power headroom value of the unlicensed spectrum cell is a virtual value.
A method for transmitting uplink data, comprising:

Trigger power headroom report PHR;

Receiving a first uplink scheduling grant UL grant of the first serving cell;

When the first serving cell is an unlicensed spectrum cell, retaining the already triggered PHR;

When the first serving cell is an authorized spectrum cell, generating first power headroom information according to the already triggered PHR and the first UL grant, and sending the first service according to the first UL grant The cell sends the first power headroom information and cancels the already triggered PHR.
The method according to claim 8, wherein when the first serving cell is an unlicensed spectrum cell, no power headroom information is generated.
The method according to claim 8 or 9, wherein, in the case that the first serving cell is an unlicensed spectrum cell, the method further includes:

Receiving a second UL grant of the second serving cell;

Generating second power headroom information according to the already triggered PHR and the second UL grant, and according to the second UL grant, to the second, when the second serving cell is an authorized spectrum cell The serving cell sends the second power headroom information and the PHR that has been triggered.
The method according to claim 10, wherein the generating the second power headroom information comprises:

The second power headroom information is generated by increasing a priority of the already triggered PHR.
The method according to any one of claims 8 to 11, wherein the trigger power headroom report PHR comprises:

The PHR is triggered according to a preset trigger condition, and the preset trigger condition does not include activating an unlicensed spectrum cell with an uplink.
The method according to any one of claims 8 to 12, wherein the method is performed by a user equipment UE, and the serving cell of the UE comprises an authorized spectrum cell and an unlicensed spectrum cell, wherein the serving cell is An activated cell with an uplink, wherein the generating the first power headroom information includes:

Generating the first power headroom information, where the first power headroom information includes a power headroom value of each cell in the serving cell, where a power headroom value of the unlicensed spectrum cell is a virtual value.
A method for transmitting uplink data, comprising:

Trigger buffer status report BSR;

Receiving a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell;

Generating the first buffer state information according to the already triggered BSR and the first UL grant, and retaining the BSR that has been triggered;

And transmitting, according to the first UL grant, the first buffer status information to the first serving cell.
The method according to claim 14, wherein the sending the first buffer status information to the first serving cell according to the first UL grant comprises:

After listening to the LBT process, the first resource is contending, and after the first resource is successfully queried, the first buffer status information is sent to the first serving cell based on the first resource, and the triggered condition is cancelled. The BSR, the first resource is an uplink transmission resource indicated by the first UL grant.
The method of claim 15 wherein the method further comprises:

After the first resource fails to be contending, the first buffer status information is not sent to the first serving cell, and the BSR that has been triggered is retained.
The method according to claim 16, wherein in the case that the competition for the first resource fails, the method further includes:

Receiving a second UL grant of the second serving cell;

Generating second buffer state information according to the already triggered BSR and the second UL grant, and continuing to retain the BSR that has been triggered;

And sending, according to the second UL grant, the second buffer status information to the second serving cell, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell.
The method according to claim 17, wherein the generating the second buffer status information comprises:

The second buffer state information is generated by increasing the priority of the BSR.
A method for transmitting uplink data, comprising:

Trigger buffer status report BSR;

Receiving a first uplink scheduling grant UL grant of the first serving cell;

When the first serving cell is an unlicensed spectrum cell, and retains the BSR that has been triggered;

When the first serving cell is an authorized spectrum cell, generating, according to the triggered BSR and the first UL grant, first buffer state information, and based on the first UL grant, the first The serving cell sends the generated first buffer state information, and cancels the BSR that has been triggered.
The method according to claim 19, wherein when the first serving cell is an unlicensed spectrum cell, no buffer status information is generated.
The method according to claim 19 or 20, wherein, in the case that the first serving cell is an unlicensed spectrum cell, the method further includes:

Receiving a second UL grant of the second serving cell;

And generating, according to the triggered BSR and the second UL grant, second buffer state information, according to the second UL grant, to the second service, when the second serving cell is an authorized spectrum cell The cell sends the second buffer status information, and cancels the BSR that has been triggered.
The method of claim 21, wherein the generating the second buffer status information comprises:

The second buffer state information is generated by increasing the priority of the BSR.
A user equipment (UE), comprising:

a trigger module, configured to trigger a power headroom report PHR;

a receiving module, configured to receive a first uplink scheduling grant UL grant of the first serving cell, where the first serving cell is an unlicensed spectrum cell;

a generating module, configured to generate first power headroom information according to the PHR that has been triggered by the triggering module and the first UL grant that is received by the receiving module, and retain the PHR that has been triggered by the triggering module;

And a sending module, configured to send the first power headroom information generated by the generating module to the first serving cell according to the first UL grant.
The UE according to claim 23, wherein the sending module is configured to: after listening to the LBT process, competing for the first resource, and after competing for the first resource, based on the first resource The first serving cell sends the first power headroom information, and cancels the PHR that has been triggered by the triggering module, where the first resource is an uplink transmission resource indicated by the first UL grant.
The UE according to claim 24, wherein the sending module is further configured to: after the contention of the first resource fails, the first power headroom information is not sent to the first serving cell, and Continue to retain the PHR that has been triggered.
The UE according to claim 25, wherein, in a case that the sending module fails to compete for the first resource, the receiving module is further configured to receive a second UL grant of the second serving cell;

The generating module is configured to generate second power headroom information according to the second UL grant received by the receiving module and the PHR that has been triggered by the triggering module, and continue to retain the PHR that has been triggered by the triggering module;

The sending module is further configured to send the second power headroom information generated by the generating module to the second serving cell according to the second UL grant received by the receiving module, where the second serving cell is Unlicensed spectrum cell or licensed spectrum cell.
The UE according to claim 26, wherein the generating module is specifically configured to generate the second power headroom information by increasing a priority of a PHR that has been triggered by the triggering module.
The UE according to any one of claims 23 to 27, wherein the triggering module is specifically configured to trigger the PHR according to a preset triggering condition, where the preset triggering condition does not include activation and is configured with an uplink. Unlicensed spectrum cell.
The UE according to any one of claims 23 to 28, wherein the serving cell of the UE comprises an authorized spectrum cell and an unlicensed spectrum cell, and the serving cell is an activated cell with an uplink. The generating module is specifically configured to generate the first power headroom information, where the first power headroom information includes a power headroom value of each cell in the serving cell, where the unlicensed spectrum cell The power headroom value is a dummy value.
A user equipment (UE), comprising:

a trigger module, configured to trigger a power headroom report PHR;

a receiving module, configured to receive a first uplink scheduling grant UL grant of the first serving cell;

a processing module, configured to: when the first serving cell is an unlicensed spectrum cell, retain a PHR that has been triggered by the triggering module;

The processing module is further configured to: when the first serving cell is an authorized spectrum cell, generate first power headroom information according to the PHR that has been triggered by the triggering module and the first UL grant that is received by the receiving module, And sending the first power headroom information to the first serving cell according to the first UL grant, and canceling the already triggered PHR.
The UE according to claim 30, wherein the processing module is further configured to: when the first serving cell is an unlicensed spectrum cell, does not generate power headroom information.
The UE according to claim 30 or 31, wherein in the case that the first serving cell is an unlicensed spectrum cell,

The receiving module is further configured to receive a second UL grant of the second serving cell;

The processing module is further configured to: when the second serving cell is an authorized spectrum cell, generate second power headroom information according to the triggered PHR and the second UL grant, and according to the second The UL grant sends the second power headroom information to the second serving cell, and the PHR that has been triggered.
The UE according to claim 32, wherein the processing module is further configured to generate the second power headroom information by increasing a priority of a PHR that has been triggered by the triggering module.
The UE according to any one of claims 30 to 33, wherein the triggering module is specifically configured to trigger the PHR according to a preset triggering condition, where the preset triggering condition does not include activation and is configured with an uplink. Unlicensed spectrum cell.
The UE according to any one of claims 30 to 34, wherein the serving cell of the UE comprises an authorized spectrum cell and an unlicensed spectrum cell, and the serving cell is an activated cell with an uplink. The processing module is specifically configured to: when the first serving cell is an authorized spectrum cell, generate the first power according to the PHR that has been triggered by the triggering module and the first UL grant received by the receiving module. The remaining power information includes the power headroom value of each cell in the serving cell, where the power headroom value of the unlicensed spectrum cell is a virtual value.
A user equipment (UE), comprising:

a trigger module, configured to trigger a buffer status report BSR;

a receiving module, configured to receive a first uplink scheduling grant UL grant of the first serving cell, where The first serving cell is an unlicensed spectrum cell;

a generating module, configured to generate a first buffer state information according to the BSR that has been triggered by the triggering module and the first UL grant that is received by the receiving module, and retain the BSR that has been triggered by the triggering module;

And a sending module, configured to send the first buffer state information generated by the generating module to the first serving cell according to the first UL grant received by the receiving module.
The UE according to claim 36, wherein the sending module is configured to: after listening to the LBT process, competing for the first resource, and after competing for the first resource, based on the first resource The first serving cell sends the first buffer status information, and cancels the BSR that has been triggered by the triggering module, where the first resource is an uplink transmission resource indicated by the first UL grant.
The UE according to claim 37, wherein the sending module is further configured to: after the contention of the first resource fails, the first buffer status information is not sent to the first serving cell, and Continue to retain the BSR that the trigger module has triggered.
The UE according to claim 38, wherein the receiving module is further configured to receive a second UL grant of the second serving cell if the first resource fails to be contending;

The generating module is further configured to: generate, according to the triggered BSR and the second UL grant, second buffer state information, and continue to retain the BSR that has been triggered;

The sending module is further configured to send, according to the second UL grant, the second buffer status information to the second serving cell, where the second serving cell is an unlicensed spectrum cell or an authorized spectrum cell. .
The UE according to claim 39, wherein the generating module is specifically configured to generate the second buffer state information by increasing a priority of the BSR.
A user equipment (UE), comprising:

a trigger module, configured to trigger a buffer status report BSR;

a receiving module, configured to receive a first uplink scheduling grant UL grant of the first serving cell;

a processing module, configured to: when the first serving cell is an unlicensed spectrum cell, and keep the BSR triggered by the triggering module;

The processing module is further configured to: when the first serving cell is an authorized spectrum cell, generate the first buffer state information according to the BSR that has been triggered by the triggering module and the first UL grant that is received by the receiving module, And transmitting, according to the first UL grant, the first serving cell to the first serving cell Generate the first buffer status information and cancel the BSR that has been triggered.
The UE according to claim 41, wherein the processing module is further configured to not generate buffer status information when the first serving cell is an unlicensed spectrum cell.
The UE according to claim 41 or 42, wherein in the case that the first serving cell is an unlicensed spectrum cell,

The receiving module is further configured to receive a second UL grant of the second serving cell;

The processing module is further configured to: when the second serving cell is an authorized spectrum cell, generate second buffer state information according to the triggered BSR and the second UL grant, according to the second UL Grant, sending the second buffer state information to the second serving cell, and canceling the BSR that has been triggered.
The UE according to claim 43, wherein the processing module is further configured to generate the second buffer status information by increasing a priority of a BSR that has been triggered by the trigger module.