Method and device for uplink data transmission

A data transmission and data volume technology, applied in the field of communication, can solve problems such as unguaranteed service quality, insufficient data packets, and preemption

Active Publication Date: 2020-12-18
SHANDONG GOLDENHUGE DATA SCI TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Since the logical channel priority of the split bearer is higher than that of other bearers, when the UE receives the ULgrant information, it indicates data transmission to the PDCP layer, and the split bearer will be transmitted preferentially. However, in fact, the ULgrant may be UL grant scheduled by MeNB based on other bearers reported by UE
Therefore, in this case, the UL grant for data transmission of other bearers will be preempted by

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  • Method and device for uplink data transmission
  • Method and device for uplink data transmission
  • Method and device for uplink data transmission

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Embodiment Construction

[0109] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0110] In dual connectivity DC technology, a UE will be configured with two cell groups (Cell group, referred to as "CG"), or also called a carrier group (CC group): one is the master cell group (Master Cell group, referred to as "MCG") ), and the other is the secondary cell group (Secondary Cell Group, referred to as "SCG").

[0111] The MCG refers to a cell group associated with the MeNB, consisting of a primary cell (Primary Cell, PCell) and zero or mor...

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Abstract

Embodiments of the present invention relate to an uplink data transmission method and device. The method comprises: a user equipment (UE) obtains resource allocation information sent by a first base station; if the UE determines that a data size of a split bearer is smaller than or equal to a predetermined value, and a BSR comprising data buffer state information of the split bearer is sent to the first base station, then a first MAC entity of the UE allocates, according to the resource allocation information, a transmission resource for the split bearer, and/or the first MAC entity sends data transmission indication information to a PDCP layer of the UE. The uplink data transmission method and device in the embodiments of the present invention can prevent a resource waste and an influence on the transmission quality of other services due to resource preemption of a split bearer, thereby ensuring uniformity between different services, and accordingly improving the resource utilization efficiency.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for uplink data transmission. Background technique [0002] In order to support a higher data rate, and to enable UE to simultaneously aggregate component carriers of different base stations (such as macro base stations and small base stations), the 3rd Generation Partnership Project (the 3rd Generation Partner Project, referred to as "3GPP") introduces dual Connection (Dual Connectivity, referred to as "DC") technology. [0003] The main idea of ​​the DC technology is to aggregate the carriers of different base stations connected through non-ideal backhaul links (backhaul), so as to increase the data transmission rate. [0004] In dual connectivity, a UE will be connected to two evolved base stations (evolved Node B, referred to as "eNB") at the same time, one is the master base station (Master eNB, referred to as "MeNB"), and the other is the secondary bas...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/04
Inventor 常俊仁毕皓
Owner SHANDONG GOLDENHUGE DATA SCI TECH INC
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