Method for transmitting m2m service by using pucch in lte system

Abstract

The invention relates to a method of using a PUCCH to transmit an M2M service in an LTE system. The method of using the PUCCH to transmit the M2M service in the LTE system comprises the following steps that (1) a network terminal carries out recognition on the types of terminals through query carried out on user capabilities, (2) on an M2M terminal side, header compression and encryption of service data are accomplished by a PDCP layer, an RLC layer carries out segmentation on the service data, the service data are transmitted to an MAC layer, (3) when a usable PUCCH resource exists, the MAC layer carries out encapsulation on the service data, and places the service data in the PUCCH to carry out transmission, (4) on a network side, a signaling processing module of the MAC layer carries out analysis on the service data, the service data are forwarded to a data processing module through a Cd interface, the data processing module carries out decapsulation on the service data, and submits the service data to an RLC entity, and (5) the RLC entity carries out cascading on the service data in a segmentation mode, and submits the service data to an upper layer of the RLC entity. The method of using the PUCCH to transmit the M2M service in the LTE system solves the problem that resource waste is caused by the fact that an existing resource allocation plan is adopted by the M2M data service, and reduces impact of massive M2M services on a traditional service.

Description

technical field [0001] The invention belongs to the field of communication technology, and relates to a method for transmitting M2M services with small data volumes, in particular to a method for transmitting M2M services with small data volumes through a PUCCH channel. Background technique [0002] M2M is the abbreviation of Machine-to-Machine. It refers to the general term of a series of technologies and their combinations that apply communication technology to realize data communication and exchange between people and people, between people and machines, and between machines. Information exchange and communication types. With the vigorous development of the Internet of Things technology, the M2M business has also received close attention from the industry because of its extensive application prospects. Different from traditional H2H communication, the number of M2M terminals is huge. According to the estimation of Juniper Research, a well-known market research organizati...

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Problems solved by technology

Due to the huge number of M2M terminals, in the actual communication process, it cannot be guaranteed that all M2M terminals that are in uplink synchronization and have uplink data to send have available PUCCH resources, so a large number of M2M terminals will initiate the random access process again. It will inevitably lead to congestion of the random access channel (PRACH), thus affecting the service quality of the H2H service

At the same time, due to the small amount of data of some M2M services, using the resource scheduling granularity of the existing system will cause waste of system resources

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