WO2013078840A1

WO2013078840A1 - Uplink data transmission method and device

Info

Publication number: WO2013078840A1
Application number: PCT/CN2012/075994
Authority: WO
Inventors: 褚丽莉; 王新台
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2011-11-28
Filing date: 2012-05-24
Publication date: 2013-06-06
Anticipated expiration: 2014-05-28
Also published as: CN103138898A

Abstract

Disclosed are an uplink data transmission method and device. The method includes: UE determining whether uplink data to be sent is the last data packet in the cache of the UE; adding an identifier in the uplink data to be sent, wherein the identifier is used for indicating that the uplink data to be sent is the last data packet in the cache of the UE; and sending to an eNB the uplink data to be sent. The present invention can avoid that the eNB feeds back the authorization of a new data packet to the UE after the UE transmits the last data packet in the cache, thus avoiding resource waste.

Description

上行数据传输方法及装置技术领域本发明涉及通信领域，具体而言，涉及一种上行数据传输方法及装置。背景技术在长期演进（Long-Term Evolution, 简称为 LTE) 系统中，上行传输机制规定，当用户设备（User Equipment, 简称为 UE) 发送一包上行数据后，在固定的定时偏移的下行子帧上，检测该包数据的确认字符 / 非确认字符 ( Acknowledgement/Non- Acknowledgement , 简称为 ACK/NACK) 传输，用以确定该包数据是否传输正确。 The present invention relates to the field of communications, and in particular to an uplink data transmission method and apparatus. In the Long-Term Evolution (LTE) system, the uplink transmission mechanism specifies that after a user equipment (User Equipment, UE for short) sends a packet of uplink data, the downlink is fixed at a fixed timing offset. On the frame, an Acknowledgement/Non-Acknowledgement (ACK/NACK) transmission of the packet data is detected to determine whether the packet data is transmitted correctly.

1 ) 如果在固定的定时偏移的下行子帧上， UE检测到 ACK和同时又检测到一个新上行数据包的授权，则 UE认为上一包数据传输正确，可以在缓冲中，删除已正确传输的数据包，进行新数据包的传输。 1) If the UE detects the ACK and detects the authorization of a new uplink packet on the downlink subframe of the fixed timing offset, the UE considers that the previous packet data transmission is correct, and the deletion may be correct in the buffer. The transmitted data packet is transmitted for new data packets.

2)如果在固定的定时偏移的下行子帧上， UE检测到有 NACK同时又检测到一个上行重传授权，则该包数据按照重传授权的指示，执行该数据包的重传。按照上述机制，在 UE进行缓存中的最后一包数据传输后，演进的节点 B (Evolved NodeB, 简称为 e B) 给 UE反馈一个 ACK和一个新数据包的授权。但是， UE此时已经没有数据要发，因此会造成资源浪费。发明内容本发明提供了一种上行数据传输方法及装置，以至少解决相关技术中在 UE进行缓存中的最后一包数据传输后， eNB给 UE反馈一个 ACK和一个新数据包的授权，但是由于 UE已经没有数据要发，因此会造成资源浪费的问题。本发明实施例提供了一种上行数据传输方法，包括： UE确定待发送的上行数据是 UE缓存中的最后一包数据；在待发送的上行数据中增加标识，其中标识用于指示待发送的上行数据是 UE缓存中的最后一包数据；向 eNB发送待发送的上行数据。在待发送的上行数据中增加标识包括：在待发送的上行数据中的媒体接入控制的协议数据单元（Media Access Control Protocol Data Unit, 简称为 MAC PDU)中的保留比特或者填充比特中增加标识。在待发送的上行数据中的 MAC PDU中的保留比特中增加标识包括：将待发送的上行数据中的 MAC PDU中的第一个保留比特设置为一。在待发送的上行数据中的 MAC PDU中的填充比特中增加标识包括：将待发送的上行数据中的 MAC PDU中的填充比特中的第一个保留比特设置为一。在向 eNB发送待发送的上行数据之后，上述方法还包括： e B接收到待发送的上行数据； eNB根据标识，确定接收的数据是 UE缓存中的最后一包数据； eNB 向 UE 仅反馈 ACK。在 eNB向 UE仅反馈 ACK之后，上述方法还包括： UE接收到 ACK; UE在缓冲中删除待发送的上行数据。本发明实施例提供了一种上行数据传输装置，应用于 UE，包括：确定模块，设置为确定待发送的上行数据是 UE缓存中的最后一包数据；增加模块，设置为在待发送的上行数据中增加标识，其中标识用于指示待发送的上行数据是 UE缓存中的最后一包数据；发送模块，设置为向 eNB发送待发送的上行数据。增加模块包括：增加子模块，设置为在待发送的上行数据中的 MAC PDU中的保留比特或者填充比特中增加标识。增加子模块包括：第一增加单元，设置为将待发送的上行数据中的 MAC PDU中的第一个保留比特设置为一。增加子模块包括：第二增加单元，设置为将待发送的上行数据中的 MAC PDU中的填充比特中的第一个保留比特设置为一。本发明实施例通过在待发送的上行数据中增加标识， UE可以告知 eNB发送的上行数据是其缓存中的最后一包数据，从而可以避免 eNB给 UE反馈新数据包的授权，避免资源浪费。附图说明此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：图 1是根据本发明实施例的上行数据传输方法的流程图；图 2是根据本发明优选实施例的上行数据传输方法的流程图；图 3是根据本发明优选实施例一的上行数据传输方法的流程图；图 4是根据本发明优选实施例二的上行数据传输方法的流程图；图 5是根据本发明优选实施例三的上行数据传输方法的流程图；图 6是根据本发明优选实施例四的上行数据传输方法的流程图；图 7是根据本发明实施例的上行数据传输装置的结构框图；图 8是根据本发明优选实施例的上行数据传输装置的结构框图一；图 9是根据本发明优选实施例的上行数据传输装置的结构框图二；图 10是根据本发明优选实施例的上行数据传输装置的结构框图三。具体实施方式需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。本发明提供了一种上行数据传输方法，图 1是根据本发明实施例的上行数据传输方法的流程图，如图 1所示，包括如下的步骤 S102至步骤 S106。步骤 S102， UE确定待发送的上行数据是 UE缓存中的最后一包数据。步骤 S104, 在待发送的上行数据中增加标识，其中标识用于指示待发送的上行数据是 UE缓存中的最后一包数据。步骤 S106, 向 eNB发送待发送的上行数据。相关技术中，在 UE进行缓存中的最后一包数据传输后， eNB给 UE反馈一个 ACK 和一个新数据包的授权，但是由于 UE已经没有数据要发，因此会造成资源浪费。本发明实施例中，通过在待发送的上行数据中增加标识， UE可以告知 eNB发送的上行数据是 UE缓存中的最后一包数据，从而可以避免 eNB给 UE反馈新数据包的授权，避免资源浪费。其中，步骤 S104包括：在待发送的上行数据中的 MAC PDU中的保留比特或者填充比特中增加标识。本优选实施例中，通过在待发送的上行数据中的 MAC PDU中的保留比特或者填充比特中增加标识，其实现方式便捷、可靠。下面分别对上述增加标识的两种方式进行介绍。 ( 1 ) 在待发送的上行数据中的 MAC PDU中的保留比特中增加标识，具体如下：将待发送的上行数据中的 MAC PDU中的第一个保留比特设置为一。 2) If, on a downlink subframe of a fixed timing offset, the UE detects that there is a NACK and detects an uplink retransmission grant, the packet data performs retransmission of the data packet according to the indication of the retransmission grant. According to the above mechanism, after the UE performs the last packet data transmission in the buffer, the evolved Node B (Evolved NodeB, referred to as e B) feeds back the UE with an ACK and a new data packet authorization. However, the UE has no data to send at this time, so it will cause waste of resources. SUMMARY OF THE INVENTION The present invention provides an uplink data transmission method and apparatus, to at least solve the related art, after the UE performs the last packet data transmission in the buffer, the eNB feeds back an ACK and a new data packet to the UE, but The UE has no data to send, so it will cause waste of resources. The embodiment of the present invention provides an uplink data transmission method, including: the UE determines that the uplink data to be sent is the last packet data in the UE buffer, and adds an identifier to the uplink data to be sent, where the identifier is used to indicate that the uplink data is to be sent. The uplink data is the last packet data in the UE buffer; the uplink data to be transmitted is sent to the eNB. Adding an identifier to the uplink data to be sent includes: adding an identifier to a reserved bit or a padding bit in a Media Access Control Protocol Data Unit (MAC PDU) of the media access control in the uplink data to be transmitted. . Adding the identifier to the reserved bits in the MAC PDU in the uplink data to be sent includes: setting the first reserved bit in the MAC PDU in the uplink data to be transmitted to one. Adding an identifier to the padding bits in the MAC PDU in the uplink data to be transmitted includes: setting a first one of the padding bits in the MAC PDU in the uplink data to be transmitted to one. After the sending the uplink data to be sent to the eNB, the method further includes: e B receiving the uplink data to be sent; the eNB determines, according to the identifier, that the received data is the last packet data in the UE buffer; the eNB only feeds back the ACK to the UE. . After the eNB only feeds back the ACK to the UE, the method further includes: the UE receives the ACK; the UE deletes the uplink data to be sent in the buffer. An embodiment of the present invention provides an uplink data transmission apparatus, which is applied to a UE, and includes: a determining module, configured to determine that uplink data to be sent is the last packet data in the UE cache; and adding a module, configured to be in an uplink to be sent An identifier is added to the data, where the identifier is used to indicate that the uplink data to be sent is the last packet data in the UE cache, and the sending module is configured to send the uplink data to be sent to the eNB. The adding module includes: adding a submodule, configured to add an identifier to the reserved bit or padding bit in the MAC PDU in the uplink data to be sent. The adding submodule includes: a first adding unit, configured to set a first reserved bit in the MAC PDU in the uplink data to be sent to one. The adding submodule includes: a second adding unit, configured to set a first reserved bit of the padding bits in the MAC PDU in the uplink data to be sent to one. In the embodiment of the present invention, by adding an identifier to the uplink data to be sent, the UE can notify the eNB that the uplink data is the last packet in the cache, so that the eNB can prevent the UE from feeding back the authorization of the new data packet and avoid resource waste. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of an uplink data transmission method according to an embodiment of the present invention; FIG. 2 is a flowchart of an uplink data transmission method according to a preferred embodiment of the present invention; FIG. 3 is a preferred embodiment according to the present invention. FIG. 4 is a flowchart of an uplink data transmission method according to a preferred embodiment 2 of the present invention; FIG. 5 is a flowchart of an uplink data transmission method according to a preferred embodiment 3 of the present invention; A flowchart of an uplink data transmission method according to a preferred embodiment 4 of the present invention; FIG. 7 is a structural block diagram of an uplink data transmission apparatus according to an embodiment of the present invention; and FIG. 8 is a structural block diagram of an uplink data transmission apparatus according to a preferred embodiment of the present invention. FIG. 9 is a block diagram showing the structure of an uplink data transmission apparatus according to a preferred embodiment of the present invention; FIG. 10 is a block diagram 3 of the structure of an uplink data transmission apparatus according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. The present invention provides an uplink data transmission method. FIG. 1 is a flowchart of an uplink data transmission method according to an embodiment of the present invention. As shown in FIG. 1, the following steps S102 to S106 are included. Step S102: The UE determines that the uplink data to be sent is the last packet data in the UE cache. Step S104: Add an identifier to the uplink data to be sent, where the identifier is used to indicate that the uplink data to be sent is the last packet data in the UE cache. Step S106: Send uplink data to be sent to the eNB. In the related art, after the UE performs the last packet data transmission in the buffer, the eNB feeds back an ACK and a new data packet authorization to the UE. However, since the UE has no data to send, the resource is wasted. In the embodiment of the present invention, by adding an identifier to the uplink data to be sent, the UE may notify the eNB that the uplink data is the last packet data in the UE buffer, so as to prevent the eNB from giving feedback to the UE for the authorization of the new data packet, and avoiding resources. waste. Step S104 includes: adding an identifier to the reserved bit or the padding bit in the MAC PDU in the uplink data to be transmitted. In the preferred embodiment, the identifier is added to the reserved bit or padding bit in the MAC PDU in the uplink data to be sent, and the implementation manner is convenient and reliable. The following two ways of adding the identifier are introduced below. (1) Add an identifier to the reserved bits in the MAC PDU in the uplink data to be sent, as follows: Set the first reserved bit in the MAC PDU in the uplink data to be sent to one.

(2) 在待发送的上行数据中的 MAC PDU中的填充比特中增加标识，具体如下：将待发送的上行数据中的 MAC PDU中的填充比特中的第一个保留比特设置为一。进而，在步骤 S106之后， eNB的操作如下： eNB接收到待发送的上行数据； eNB 根据标识，确定接收的数据是 UE缓存中的最后一包数据； eNB向 UE仅反馈 ACK。本优选实施例中， eNB仅给 UE反馈 ACK，而不反馈新数据包的授权。由于避免了空的上行授权，因此降低了 eNB的调度器处理，同时提升了频谱利用效率。考虑到相关技术中在 eNB仅给 UE反馈 ACK的情况下， UE要把数据缓冲起来，一直在相应的下行子帧上检测该包数据的重传授权，长时间没有授权， UE可能发起调度请求，因此这样一方面会造成 UE的耗电量增大，用于检测重传授权，另一方面可能由于 UE发起调度请求，造成频谱资源利用下降，同时会增加该包数据的传输时延。所以，本发明中，在 eNB向 UE仅反馈 ACK之后， UE的操作如下： UE接收到 ACK; UE在缓冲中删除待发送的上行数据。本优选实施例中，在 eNB仅给 UE反馈 ACK的情况下，即认为该包数据已正确传输，可以在缓冲中删除，从而降低了 UE的盲检测次数，进而降低了 UE的功耗，避免了 UE因为最后一包数据发起调度请求，因此提升了频谱利用率。图 2是根据本发明优选实施例的上行数据传输方法的流程图，如图 2所示，包括如下的步骤 S202至步骤 S208。步骤 S202， LTE系统中，终端在发送其缓存中的最后一包数据时，在 MAC PDU 中的保留（reserved) 比特或者填充比特（Padding 比特）中进行标识，用以说明该包数据是业务的最后一包数据。步骤 S204， eNB在正确接收数据包后，发现保留比特或者填充比特有非 0设置，则认为这包数据是缓存中的最后一包数据。步骤 S206， eNB则仅反馈 ACK，表示该包数据正确传输。步骤 S208， UE对于进行了标记的数据包传输后，如果检测到该包数据的 ACK，则认为该包数据已正确传输，可以在缓冲中删除，该业务也传输完毕。下面将结合实例对本发明实施例的实现过程进行详细描述。 UE在最后一包数据传输时，在保留比特或者填充比特的部分比特中设置为" 1"; eNB在成功接收数据后，检查 MAC PDU的保留比特或者填充比特，以确定该包数据是否为缓存中的最后一包数据；如果检查到是缓存中的最后一包数据，则仅反馈 ACK; UE在发送缓存中的最后一包数据后，并且仅收到 ACK，则表示该包数据已正确接收，且该业务已完成传输。优选实施例一 (2) Add an identifier to the padding bits in the MAC PDU in the uplink data to be sent, as follows: Set the first reserved bit in the padding bits in the MAC PDU in the uplink data to be transmitted to one. Further, after step S106, the eNB operates as follows: The eNB receives the uplink data to be sent; the eNB determines, according to the identifier, that the received data is the last packet data in the UE buffer; the eNB only feeds back the ACK to the UE. In the preferred embodiment, the eNB only feeds back the ACK to the UE without feeding back the authorization of the new data packet. Since the empty uplink grant is avoided, the scheduler processing of the eNB is reduced, and the spectrum utilization efficiency is improved. Considering the related art, in the case that the eNB only feeds back the ACK to the UE, the UE needs to buffer the data, and always detects the retransmission authorization of the packet data in the corresponding downlink subframe. If there is no authorization for a long time, the UE may initiate a scheduling request. Therefore, on the one hand, the power consumption of the UE is increased, which is used for detecting the retransmission authorization. On the other hand, the UE may initiate a scheduling request, causing the spectrum resource utilization to decrease, and increasing the transmission delay of the packet data. Therefore, in the present invention, after the eNB only feeds back the ACK to the UE, the operation of the UE is as follows: The UE receives the ACK; the UE deletes the uplink data to be sent in the buffer. In the preferred embodiment, when the eNB only feeds back the ACK to the UE, it is considered that the packet data has been correctly transmitted, and may be deleted in the buffer, thereby reducing the number of blind detections of the UE, thereby reducing the power consumption of the UE, and avoiding The UE initiates a scheduling request because of the last packet of data, thereby improving spectrum utilization. 2 is a flowchart of an uplink data transmission method according to a preferred embodiment of the present invention. As shown in FIG. 2, the following steps S202 to S208 are included. Step S202: In the LTE system, when the terminal sends the last packet of data in the cache, the terminal identifies the reserved bit or the padding bit in the MAC PDU to indicate that the packet data is a service. The last packet of data. Step S204: After correctly receiving the data packet, the eNB finds that the reserved bit or the padding bit has a non-zero setting, and considers that the packet data is the last packet data in the buffer. In step S206, the eNB only feeds back the ACK, indicating that the packet data is correctly transmitted. Step S208, after the UE transmits the marked data packet, if the ACK of the packet data is detected, the UE considers that the packet data has been correctly transmitted, may be deleted in the buffer, and the service is also transmitted. The implementation process of the embodiment of the present invention will be described in detail below with reference to examples. When the last packet data transmission is performed, the UE sets "1" in the partial bits of the reserved bit or the padding bit; after successfully receiving the data, the eNB checks the reserved bit or the padding bit of the MAC PDU to determine whether the packet data is cached. The last packet of data; if it is the last packet of data in the buffer, only the ACK is fed back; after the UE sends the last packet of data in the buffer, and only receives the ACK, it indicates that the packet data has been correctly received. And the service has completed the transfer. Preferred embodiment 1

UE将发送该业务链接的最后一包数据，且该 MAC子头为 7比特的长度域。图 3是根据本发明优选实施例一的上行数据传输方法的流程图，如图 3所示，包括如下的步骤 S302至步骤 S308。步骤 S302， UE在缓存中的最后一包数据传输时，将 MAC子头的第一个保留比特设置为 1。步骤 S304， eNB在成功接收数据后，检查 MAC子头的保留比特，发现其第一个保留比特为 1，则认为该数据包是该业务的最后一包数据。步骤 S306， eNB仅反馈一个 ACK。步骤 S308， UE在发送最后一包数据后，收到一个 ACK，则认为该包数据已正确接收，该业务完成传输。优选实施例二 UE将发送该业务链接的最后一包数据，且该 MAC子头为 15比特的长度域。图 4是根据本发明优选实施例二的上行数据传输方法的流程图，如图 4所示，包括如下的步骤 S402至步骤 S408。步骤 S402， UE在缓存中的最后一包数据传输时，将 MAC子头的第一个保留比特设置为 1。步骤 S404， e B在成功接收数据后，检查 MAC子头的保留比特，发现其第一个保留比特为 1，则认为该数据包是该业务的最后一包数据。步骤 S406， eNB仅反馈一个 ACK。步骤 S408， UE在发送最后一包数据后，收到一个 ACK，则认为该包数据已正确接收，该业务完成传输。优选实施例三 The UE will send the last packet of data of the service link, and the MAC subheader is a 7-bit length field. FIG. 3 is a flowchart of an uplink data transmission method according to a preferred embodiment of the present invention. As shown in FIG. 3, the following steps S302 to S308 are included. Step S302, the UE sets the first reserved bit of the MAC subheader to 1 when transmitting the last packet data in the buffer. Step S304, after successfully receiving the data, the eNB checks the reserved bit of the MAC sub-header and finds that the first reserved bit is 1, and considers that the data packet is the last packet data of the service. Step S306, the eNB only feeds back one ACK. Step S308, after receiving the last packet data, the UE receives an ACK, and then considers that the packet data has been correctly received, and the service completes the transmission. Preferred embodiment two The UE will send the last packet of data for the service link, and the MAC subheader is a 15-bit length field. FIG. 4 is a flowchart of an uplink data transmission method according to a second embodiment of the present invention. As shown in FIG. 4, the following steps S402 to S408 are included. Step S402, the UE sets the first reserved bit of the MAC subheader to 1 when transmitting the last packet data in the buffer. Step S404, after successfully receiving the data, e B checks the reserved bit of the MAC sub-header and finds that the first reserved bit is 1, and considers that the data packet is the last packet data of the service. In step S406, the eNB only feeds back one ACK. Step S408: After receiving the last packet data, the UE receives an ACK, and then considers that the packet data has been correctly received, and the service completes the transmission. Preferred embodiment three

UE将发送该业务链接的最后一包数据，且该 MAC子头为无长度域的。图 5是根据本发明优选实施例三的上行数据传输方法的流程图，如图 5所示，包括如下的步骤 S502至步骤 S508。步骤 S502， UE在缓存中的最后一包数据传输时，将 MAC子头的第一个保留比特设置为 1。步骤 S504， eNB在成功接收数据后，检查 MAC子头的保留比特，发现其第一个保留比特为 1，则认为该数据包是该业务的最后一包数据。步骤 S506， eNB仅反馈一个 ACK。步骤 S508， UE在发送最后一包数据后，收到一个 ACK，则认为该包数据已正确接收，该业务完成传输。优选实施例四 The UE will send the last packet of data of the service link, and the MAC subheader is of no length domain. FIG. 5 is a flowchart of an uplink data transmission method according to a preferred embodiment 3 of the present invention. As shown in FIG. 5, the following steps S502 to S508 are included. Step S502: The UE sets the first reserved bit of the MAC sub-header to 1 when transmitting the last packet data in the buffer. Step S504, after successfully receiving the data, the eNB checks the reserved bit of the MAC subheader and finds that the first reserved bit is 1, and considers that the data packet is the last packet data of the service. Step S506, the eNB only feeds back one ACK. Step S508, after receiving the last packet data, the UE receives an ACK, and then considers that the packet data has been correctly received, and the service completes the transmission. Preferred embodiment four

UE将发送该业务链接的最后一包数据，且该 MAC PDU有填充比特。图 6是根据本发明优选实施例四的上行数据传输方法的流程图，如图 6所示，包括如下的步骤 S602至步骤 S608。步骤 S602， UE在缓存中的最后一包数据传输时，将填充比特序列的第一个保留比特设置为 1。步骤 S604， eNB在成功接收数据后，检查 MAC PDU的填充比特序列，发现其第一个保留比特为 1，则认为该数据包是该业务的最后一包数据。步骤 S606， eNB仅反馈一个 ACK。步骤 S608， UE在发送最后一包数据后，收到一个 ACK，则认为该包数据已正确接收，该业务完成传输。需要说明的是，在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。本发明实施例提供了一种上行数据传输装置，应用于 UE，该上行数据传输装置可以用于实现上述上行数据传输方法。图 7是根据本发明实施例的上行数据传输装置的结构框图，如图 7所示，包括确定模块 72，增加模块 74和发送模块 76。下面对其结构进行详细描述。确定模块 72，设置为确定待发送的上行数据是 UE缓存中的最后一包数据；增加模块 74，连接至确定模块 72，设置为在确定模块 72确定的待发送的上行数据中增加标识，其中标识用于指示待发送的上行数据是 UE缓存中的最后一包数据；发送模块 76，连接至增加模块 74，设置为向 eNB发送增加模块 74增加了增加标识的待发送的上行数据。图 8是根据本发明优选实施例的上行数据传输装置的结构框图一，如图 8所示，增加模块 74包括：增加子模块 742，连接至确定模块 72，设置为在确定模块 72确定的待发送的上行数据中的 MAC PDU中的保留比特或者填充比特中增加标识。图 9是根据本发明优选实施例的上行数据传输装置的结构框图二，如图 9所示，增加子模块 742包括：第一增加单元 7422，连接至确定模块 72，设置为将确定模块 72确定的待发送的上行数据中的 MAC PDU中的第一个保留比特设置为一。图 10是根据本发明优选实施例的上行数据传输装置的结构框图三，如图 10所示，增加子模块 742包括：第二增加单元 7424，连接至确定模块 72，设置为将确定模块 72确定的待发送的上行数据中的 MAC PDU中的填充比特中的第一个保留比特设置为需要说明的是，装置实施例中描述的上行数据传输装置对应于上述的方法实施例，其具体的实现过程在方法实施例中已经进行过详细说明，在此不再赘述。综上所述，根据本发明的上述实施例，提供了一种上行数据传输方法及装置。本发明通过在待发送的上行数据中增加标识， UE可以告知 eNB发送的上行数据是该 UE 缓存中的最后一包数据，从而可以避免 eNB给 UE反馈新数据包的授权，避免资源浪 The UE will send the last packet of data for the service link, and the MAC PDU has padding bits. FIG. 6 is a flowchart of an uplink data transmission method according to a preferred embodiment 4 of the present invention. As shown in FIG. 6, the following steps S602 to S608 are included. Step S602, the UE sets the first reserved bit of the padding bit sequence to 1 when transmitting the last packet data in the buffer. Step S604, after successfully receiving the data, the eNB checks the padding bit sequence of the MAC PDU, and finds that the first reserved bit is 1, and considers that the data packet is the last packet data of the service. In step S606, the eNB only feeds back one ACK. Step S608, after receiving the last packet data, the UE receives an ACK, and then considers that the packet data has been correctly received, and the service completes the transmission. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein. The embodiment of the invention provides an uplink data transmission device, which is applied to a UE, and the uplink data transmission device can be used to implement the uplink data transmission method. FIG. 7 is a structural block diagram of an uplink data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 7, a determination module 72, an addition module 74, and a transmission module 76 are included. The structure is described in detail below. The determining module 72 is configured to determine that the uplink data to be sent is the last packet data in the UE buffer, and the adding module 74 is connected to the determining module 72, and is configured to add an identifier to the uplink data to be sent determined by the determining module 72, where The identifier is used to indicate that the uplink data to be sent is the last packet data in the UE buffer. The sending module 76 is connected to the adding module 74, and is configured to send, to the eNB, the uplink data to be sent by the adding module 74 to increase the identifier. FIG. 8 is a block diagram showing the structure of an uplink data transmission apparatus according to a preferred embodiment of the present invention. As shown in FIG. 8, the adding module 74 includes: an adding submodule 742, connected to the determining module 72, and configured to be determined by the determining module 72. An identifier is added to the reserved bit or the padding bit in the MAC PDU in the transmitted uplink data. FIG. 9 is a block diagram showing the structure of an uplink data transmission apparatus according to a preferred embodiment of the present invention. As shown in FIG. 9, the adding submodule 742 includes: a first adding unit 7422 connected to the determining module 72, and configured to determine the determining module 72. The first reserved bit in the MAC PDU in the uplink data to be transmitted is set to one. FIG. 10 is a structural block diagram 3 of an uplink data transmission apparatus according to a preferred embodiment of the present invention. As shown in FIG. 10, the adding submodule 742 includes: a second adding unit 7424, connected to the determining module 72, configured to determine the determining module 72. The first reserved bit in the padding bits in the MAC PDU in the uplink data to be transmitted is set to It should be noted that the uplink data transmission device described in the device embodiment corresponds to the foregoing method embodiment, and the specific implementation process has been described in detail in the method embodiment, and details are not described herein again. In summary, according to the above embodiments of the present invention, an uplink data transmission method and apparatus are provided. The invention can increase the identifier in the uplink data to be sent, and the UE can notify the eNB that the uplink data is the last packet data in the UE buffer, so as to prevent the eNB from giving feedback to the UE for the authorization of the new data packet, and avoiding resource waves.

工业实用性本发明技术方案具备工业实用性。本发明实施例通过在待发送的上行数据中增加标识， UE可以告知 eNB发送的上行数据是该 UE缓存中的最后一包数据，从而可以避免 eNB给 UE反馈新数据包的授权，避免资源浪费。显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 Industrial Applicability The technical solution of the present invention has industrial applicability. In the embodiment of the present invention, by adding an identifier to the uplink data to be sent, the UE may notify the eNB that the uplink data is the last packet data in the UE cache, thereby preventing the eNB from feeding back the new data packet authorization to the UE, and avoiding resource waste. . Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. An uplink data transmission method, comprising:

The user equipment (UE) determines that the uplink data to be sent is the last packet data in the buffer of the UE, and adds an identifier to the uplink data to be sent, where the identifier is used to indicate that the uplink data to be sent is the The last packet of data in the UE cache;

Sending the uplink data to be sent to the evolved Node B e B.

2. The method according to claim 1, wherein the adding the identifier in the uplink data to be sent comprises: a reserved bit in a protocol data unit MAC PDU of the medium access control in the uplink data to be transmitted Or add the identifier in the padding bits.

The method of claim 2, wherein adding the identifier to a reserved bit in a MAC PDU in the uplink data to be sent comprises:: in a MAC PDU in the uplink data to be sent The first reserved bit is set to one.

The method according to claim 2, wherein adding the identifier to the padding bits in the MAC PDU in the uplink data to be sent includes:: in a MAC PDU in the uplink data to be sent The first reserved bit in the padding bits is set to one.

The method according to any one of claims 1 to 4, further comprising: after transmitting the uplink data to be sent to the eNB, further comprising:

Receiving, by the eNB, the uplink data to be sent;

Determining, by the eNB, that the received data is the last packet data in the UE cache according to the identifier;

The eNB only feeds back the acknowledgement character ACK to the UE.

The method according to claim 5, wherein, after the eNB only feeds back the ACK to the UE, the method further includes:

Receiving, by the UE, the ACK;

The UE deletes the uplink data to be sent in a buffer. An uplink data transmission device, applied to a UE, includes:

a determining module, configured to determine that the uplink data to be sent is the last packet data in the UE cache;

An adding module, configured to add an identifier to the uplink data to be sent, where the identifier is used to indicate that the uplink data to be sent is the last packet data in the UE cache;

The sending module is configured to send the uplink data to be sent to the evolved Node B e B. The apparatus according to claim 7, wherein the adding module comprises: an adding submodule, configured to add the identifier to a reserved bit or a padding bit in a MAC PDU in the uplink data to be transmitted. The apparatus according to claim 8, wherein the adding submodule comprises: a first adding unit, configured to set a first reserved bit of the MAC PDUs in the uplink data to be sent to one. The apparatus according to claim 8, wherein the adding submodule comprises: a second adding unit, configured to set a first reserved bit of the padding bits in the MAC PDU in the uplink data to be sent as One.