Abstract:
Provided are a data transmission method and apparatus, a sending end sends data to a receiving end on one or more orthogonal frequency division multiplexing (OFDM) symbols in a scheduling unit, and the receiving end receives data sent by the sending end on one or more OFDM symbols in the scheduling unit. A time length of the scheduling unit is a length of two long term evolution (LTE) OFDM symbols having normal cycle prefixes and a subcarrier spacing of 15 kHz, the scheduling unit is formed by seven or eight OFDM symbols having a subcarrier spacing of 60 kHz, the scheduling unit is maintained to be the seven OFDM symbols having a subcarrier spacing of 60 kHz and having new extended cycle prefixes.
Abstract:
The present document discloses control signaling transmission and demodulation method, system and terminal. The control signaling transmission method includes: a base station transmitting control signaling using different transmission technologies on available transmission resources in the second control signaling transmission area in the same RB. With present document, by configuring a pilot frequency port and dividing the transmission resources in the second control signaling transmission area in the RB, the control signaling of a plurality of UEs using different transmission technologies can be transmitted on the available transmission resources in the same RB, thus fully utilizing the transmission resources in the RB, improving resource utilization rate, enhancing control signaling capacity, and supporting the control signaling of more users.
Abstract:
Disclosed are an HARQ sending and receiving method and device, and a node. The method comprises: detecting reception conditions of N transmission blocks; according to the reception conditions, generating a first HARQ status value with the length of M bits, wherein each value of all the first HARQ status values corresponds to one reception condition of the N transmission blocks when k falls within a pre-set value range on a one-to-one basis, where k is the number of correctly received transmission blocks among the received transmission blocks, M, N and k are integers, 2≤M
Abstract:
Provided are a method and a device for sending and receiving an ePDCCH, a base station, and user equipment. The method includes: a base station mapping enhanced resource element groups (eREGs) corresponding to an ePDCCH to different resource elements, wherein each of the eREGs corresponding to the ePDCCH is located in one physical resource block pair; and the base station sending the ePDCCH on the resource elements. The disclosure improves the reliability and resource utilization of ePDCCH transmission.
Abstract:
Provided are a synchronization track reference signal transmission processing, receiving processing method and apparatus. According to the transmission processing method, a base station configures, for a new carrier, subframe pattern information used for a synchronization track reference signal (STRS), wherein the subframe pattern information is used for describing at least one subframe for transmitting the STRS in a radio frame; and the base station transmits the configured subframe pattern information to user equipment. By applying the technical solution, the technical problems of being unable to transmit the STRS in a new carrier since there is not technical solution regarding how to transmit the STRS in the related technologies, etc. are solved, thereby achieving the transmission of the STRS in the new carrier.
Abstract:
A method for transmitting downlink control information, a detecting method, a base station and a UE are provided in the present invention. The detecting method includes: the UE detects downlink control information beared by ePDCCH in a resource block according to a resource block set and pre-defined information configured by the base station; wherein the pre-defined information at least includes one of the followings: sub-carrier position information detected in the resource block set, enhanced control channel unit information detected in the resource block set, a mapping mode of the ePDCCH, aggregation level configuration information detected in the resource block set, the amount of candidate set corresponding to the detected aggregation level in the resource block set and a downlink control information format. In the present invention, the UE is agilely indicated to detected the downlink control information beared by the ePDCCH in the corresponding physical resource block according to the configured resource block set and the pre-defined information, so as to save resources of space detected and searched by the UE, thus scheduling efficient of the system is improved.
Abstract:
Provided are a data transmission method and device. The method includes: determining, by means of a frequency hopping manner according to a TTI Bundling parameter, a frequency domain position of a physical resource block in a slot for sending a TTI Bundling, wherein a frequency hopping variable i of the frequency hopping manner is determined according to the TTI Bundling parameter by means of one of or a combination of predetermined approaches, where mod is a modulus operation, floor is rounded down operation, ns is a sequence number of the time slot; transmitting data on a time frequency resource corresponding to the frequency domain position of the physical resource block in the slot of the TTI bundling. According to the solution, the coverage area of the TTI bundling data transmission is improved.
Abstract:
Disclosed is a physical downlink shared channel transmission method, and the method includes: a network side determines transmission parameters of a Physical Downlink Shared Channel (PDSCH) according to a relevant transmission mode of a DM-RS and/or relevant information of a scheduled UE, wherein the transmission parameters include one or more of: a resource mapping approach of the PDSCH, a downlink DM-RS antenna port in use, and a Scrambling Code Identity (SCID) and a scrambling code initialized value X desired when a downlink DM-RS port sequence is initialized; and the network side transmits data according to the determined antenna parameters of the PDSCH. Further disclosed is a physical downlink shared channel transmission system. The disclosure can implement selection of DM-RS antenna ports and use multiple DM-RS antenna ports to improve transmission reliability, eliminate interference, increase MU-MIMO multiplexing capacity and improve frequency selective gain.
Abstract:
Provided are a data transmission method and device. The method includes: determining, by means of a frequency hopping manner according to a TTI Bundling parameter, a frequency domain position of a physical resource block in a slot for sending a TTI Bundling, wherein a frequency hopping variable i of the frequency hopping manner is determined according to the TTI Bundling parameter by means of one of or a combination of predetermined approaches, where mod is a modulus operation, floor is rounded down operation, ns is a sequence number of the time slot; transmitting data on a time frequency resource corresponding to the frequency domain position of the physical resource block in the slot of the TTI bundling. According to the solution, the coverage area of the TTI bundling data transmission is improved.
Abstract:
The present document discloses control signaling transmission and demodulation method, system and terminal. The control signaling transmission method includes: a base station transmitting control signaling using different transmission technologies on available transmission resources in the second control signaling transmission area in the same RB. With present document, by configuring a pilot frequency port and dividing the transmission resources in the second control signaling transmission area in the RB, the control signaling of a plurality of UEs using different transmission technologies can be transmitted on the available transmission resources in the same RB, thus fully utilizing the transmission resources in the RB, improving resource utilization rate, enhancing control signaling capacity, and supporting the control signaling of more users.