Abstract: A method and an apparatus for decoding polar codes, the method comprising: determining a starting level for processing an overflow according to a number of encoded bits of a received polar encoded codeword, an input bit-width, and an internal bit-width of a decoder; multiplying an output Log-Likelihood Ratio (LLR) value and two input LLR values of the G function by a first coefficient and a second coefficient respectively; and finally, the LLR values corresponding to the received codeword are decoded to obtain decoded bits.

Abstract: A method for allocating wireless resources based on sensitivity to interference provides a base station controller which, within an area of overlap of adjacent wireless cells, determines a set of neighboring cell pairs from a plurality of cells. The base station controller sorts the set of neighboring cell pairs according to the number of inner-pair interfered user equipment devices of each neighboring cell pair where inner-pair interfered user equipment devices are user equipment devices located in coverage areas of the neighboring cell pair and allocates resource blocks for each neighboring cell pair sequentially based on the sorted set. An apparatus employing the method is also disclosed.

Abstract: A method for downlink transmission in a cloud radio access network for a number of users is applied in a central unit. The central unit determines a specific number of remote radio heads (RRHs) as non-serving RRHs based on a predetermined data compression ratio. For each of many pieces of user equipment (UEs), the central unit determines a combination of RRHs which are non-serving in coordinated multi-point transmission (CoMP) from a plurality of RRHs based on the determined specific number, and then performs CoMP downlink transmission based on the combination of RRHs which are non-serving in the CoMP.

Abstract: A method and a system for downlink pre-coding in cloud radio access networks uses a baseband unit, a number of remote radio heads, and a number of user equipments. The baseband unit determines a received signal expression for each user equipment based on system parameters and channel state information, and determines a sum rate expression which may be achievable for downlink transmission based on the received signal expression. The baseband unit then sets up a constrained optimal problem expression subject to a maximum transmitting power of each remote radio head with an objective function of sum rate maximization based on the achievable sum rate expression, and finally determines optimal solutions for the constrained optimal problem where the optimal solutions comprise downlink pre-coding used for downlink transmission.

Abstract: A method for selecting a beamforming technique, applied in an apparatus of a multi-cell network, provides optimization to maximize effective throughput of communication based on the multi-cell network, the optimization is modelled as a Markovian decision process, and a multi-agent reinforcement learning framework is built based on the multi-cell network. A multi-agent reinforcement learning algorithm is used to generate the optimization and obtain a current beamforming selection strategy of all base stations.

Abstract: A method and a system for processing uplink signals in cloud radio access networks are disclosed The system comprising a baseband unit and a number of remote radio heads. The baseband unit and the remote radio heads are connected through fronthaul links. When one remote radio head receives a signal transmitted from a user equipment, the remote radio head first encodes the received signal according to a post-coding matrix, then quantizes the encoded signal according to a number of quantization bits allocated to the user equipment, and finally transmits the quantized signal to the baseband unit.

Abstract: A method for allocating wireless resources for a number of user equipment in a wireless communication system is applied in an apparatus. The apparatus collects the traffic demands of all the user equipment and then selects a beam based on the traffic demands of all the user equipment in every time slot to make better utilization of resource blocks.

Abstract: A method reducing amount of memory utilized by hybrid automatic repeat request (HARQ) operations is disclosed. When an apparatus employing the method receives an LDPC encoded packet, the apparatus firstly estimates a signal quality value of the received packet, and performs an LDPC decoding algorithm on the received packet. If the received packet is not successfully decoded by the apparatus, the received and decoding-failed packet is compressed in order to reduce bit-width, and the compressed packet is stored in a memory device for later HARQ operations. The apparatus employing the method is also disclosed.

Abstract: A method for allocating wireless resources based on sensitivity to interference provides a base station controller which, within an area of overlap of adjacent wireless cells, determines a set of neighboring cell pairs from a plurality of cells. The base station controller sorts the set of neighboring cell pairs according to the number of inner-pair interfered user equipment devices of each neighboring cell pair where inner-pair interfered user equipment devices are user equipment devices located in coverage areas of the neighboring cell pair and allocates resource blocks for each neighboring cell pair sequentially based on the sorted set. An apparatus employing the method is also disclosed.

Abstract: A method for downlink transmission in a cloud radio access network for a number of users is applied in a central unit. The central unit determines a specific number of remote radio heads (RRHs) as non-serving RRHs based on a predetermined data compression ratio. For each of many pieces of user equipment (UEs), the central unit determines a combination of RRHs which are non-serving in coordinated multi-point transmission (CoMP) from a plurality of RRHs based on the determined specific number, and then performs CoMP downlink transmission based on the combination of RRHs which are non-serving in the CoMP.

Abstract: A method for orchestrating resources in a multi-access edge computing (MEC) network is applied in and by an apparatus. The MEC network comprises at least one control node, substrate nodes and substrate links managed by the at least one control node. The apparatus receives a virtual network request and calculates whether a proper virtual network embedding solution for the virtual network request exists. If so, the apparatus hands the solution over to the at least one control node for implementation.