Protocol configuration method for realizing LWA function for LTE-Advanced Pro system
A protocol configuration and system implementation technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of adding LCID to WLAN PDUs, data packets arriving in confusion, and inability to identify service transmission types, so as to improve transmission performance and improve customer service. The effect of experience
Active Publication Date: 2017-06-27
CHONGQING UNIV OF POSTS & TELECOMM
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[0005] Second, on the receiving side, no LCID is added to the WLAN PDU received by the WLAN
Therefore, failing to identify the EPS bearer will cause the PDCP data packets to arrive in disorder, and the transmission type of the service cannot be identified.
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[0030] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.
[0031] The technical scheme that the present invention solves the above-mentioned technical problem is,
[0032] Combined with the deployment of unlicensed spectrum newly proposed in recent years, in the state of licensed assisted access, using the ample spectrum resources of unlicensed spectrum will greatly improve the cellular data capacity. Therefore, the present invention utilizes the existing technology The specification proposes a network architecture design that integrates LTE-A and WLAN technologies, such as figure 2 shown.
[0033]In this solution, we configure normal PDCP at the PDCP layer to enable it to implement functions such as encryption and integrity protection at the PDCP layer. Here,...
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The invention provides a protocol configuration method for realizing a LWA function for a LTE-Advanced Pro system. First of all, in a high-level PDCP (Packet Data Convergence Protocol) layer, load sharing is performed on data, and the data are transmitted to SeNB, and at this time, the SeNB can also support AP and AC auxiliary cells of a WLAN; on the auxiliary cells, a link structure on the local area network is designed to be able to identify a PDCP PDU (Protocol Data Unit) and a local area network identified by a wireless bearer, thus the concept that no logical channels exist in MAC of the WLAN can be solved, a new adaptation layer is defined between a PDCP layer and an MAC layer, which can add a certain bit of ID instructions on a PDCP package transmitted by a down link and can distinguish the instructions of LTE transmission and WLAN transmission, thereby facilitating identification of respective data transmission at an UE end. When the data are transmitted to the high-level PDCP of the UE end, two types of data that are wirelessly transmitted are submitted in sequence to the upper level by means of a LWA function. Therefore, the transmission of the entire business is completed through the LWA.
Description
technical field [0001] The present invention relates to the technical field of 5G mobile communication, and aims to describe a new control access method of a 5G heterogeneous network. Background technique [0002] With the rise of smart devices and data-intensive services, more and more people are working on new network architectures and communication solutions. In the latest LTE-A Pro standard, system enhancements for aggregation of various radio access technologies for 5th generation (5G) mobile communication and standardization of wireless communication are studied. Among them, LTE-U, LTE-LAA, LWA and multi-link TCP are all preselected solutions for the integration of these two wireless technologies. One of the current research topics is LTE-WLAN aggregation, that is, the design structure of LWA, which aims to realize unlicensed frequency bands. Bandwidth aggregation of WLAN and licensed-band LTE, and simultaneous use of LTE radio access and WLAN radio access, will impro...
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Login to View More IPC IPC(8): H04L29/06H04L12/24
CPCH04L41/0803H04L69/03H04L69/22H04L69/26
Inventor 陈发堂郑辉周述淇李小文王华华王丹刘宇
Owner CHONGQING UNIV OF POSTS & TELECOMM