To address this problem, we present an enahnced grant-free access scheme for mMTC uplink transmissions based on the probability concept, where a type of specific resource called Probability-Based Access (PBA) channel is allocated with congestion probability indicated. Thus the mMTC device can ...
The focus is on proof of concept of UL grant-free transmissions in the UCNC architecture. Massive connectivity supporting a huge number of devices is one of the three important scenarios in 5G networks. The challenges to support massive connectivity lie in the cost of signaling overhead and ...
• ConfiguredGrantConfig IE defines "powerControlLoopToUse" field. • The IE Alpha defines possible values for uplink power control. • In 5G NR, power control procedure has been modified to work for all the numerologies or subcarrier spacing/other system parameters. • The term 2...
in 5G cellular communication by utilizing the power domain and Advance receiver.It provides services to the multi-users in time,frequency and code domain with significant power level.Message Passing Algorithm(MPA)detection in multi-user uplink grant-free system requires user activity information at ...
The uplink scheduling grant in DCI format 0 contains a single-bit flag for switching hopping on or off. Also, the UE is instructed to use type 1 or type 2 frequency-hopping and it receives the index of the first resource block of the uplink allocation. Type 1 hopping corresponds to ...
Sparse code multiple access-based uplink grant-free transmission (SCMA-UGFT) has been proposed to realize ultra reliable and low latency communication (URLLC) in the fifth generation (5G) system.Without the process of resource request an... J Xiao,G Nie,G Deng,... - 《Journal of China ...
Uplink grants for the groups are sent with the downlink grants, and for those groups that have more than one uplink subframe, the grant message also indicates which uplink subframes are included in that group. In another aspect there are two sets of grant messages, one for the uplink ...
The 5G mMTC is considering the use of a combination of two key mMTC enabling technologies grant-free (GF) transmission and non-orthogonal multiple-access (NOMA), called GF-NOMA, which can potentially exploit the advantages of both schemes. A primary challenge in GF-NOMA is to reduce the ...
2.The first device of claim 1, wherein the transmission information available at the first time point comprises at least one of the following: a grant, an assignment, a discontinuous reception (DRX) command medium access control (MAC) control element (CE), a long DRX command MAC CE, and ...
(UL grant) or for downlink data (DL grant), whether the DCI is compact DCI of which the control information is small, whether spatial multiplexing using multiple antennas is applied, whether the DCI is used for controlling power, and the like. For example, DCI format 1, corresponding to ...