摘要:
The present invention discloses a method and device for transmitting downlink information in a multi-carrier aggregation system. The Method includes: a base station side sends a downlink subframe to a terminal side, wherein, the physical downlink control channel (PDCCH) in the downlink subframe is used for bearing more than one piece of downlink control indicating information and the carrier scheduling indicating information corresponding to each downlink control indicating information. It solves the problem in the prior art of indefinite identification at the terminal side because the length of DCI may be same due to the difference of the bandwidths of carriers in the carrier aggregation system.
摘要:
A method and a device for transmitting downlink information in a multi-carrier aggregation system are provided. The Method includes: a base station side sends a downlink subframe to a terminal side, wherein, the physical downlink control channel (PDCCH) in the downlink subframe is used for bearing the downlink control indicating information and the carrier scheduling indicating information corresponding to each downlink control indicating information. It solves the problem that the terminal side can not clearly identify the downlink control information (DCI) of different carriers, which is caused by that the length of DCI may be same due to the difference of the bandwidths of carriers in the carrier aggregation system.
摘要:
A method, system and device for scheduling a non-contention based random access and transmitting a preamble are provided in the present invention. The present invention belongs to wireless telecommunication field and is used to solve a problem that the prior art is not able to support cross carrier non-competing random access scheduled by a Physical Downlink Control Channel (PDCCH). In the present invention, a Base Station (BS) adds Uplink Component Carrier (ul cc) identification information in a Downlink Control Information (DCI) signaling which is used to schedule a User Equipment (UE) to implement non-competing random access; and sends the UE the DCI signaling through the PDCCH. After detecting the DCI signaling, the UE sends the network side a preamble sequence on a UL CC corresponding to the UL CC identification. With the present invention, support is provided to realize cross carrier non-competing random access scheduled by PDCCH.
摘要:
Embodiments of the present invention relate to the technical field of wireless communication, and relate particularly to a method, a system, and a device for confirming an uplink-downlink configuration, for use in confirming via interference detection whether or not a cell is capable of conducting independently the uplink-downlink configuration. The method of the embodiments of the present invention comprises: a network side device confirming the receipt of a first RSRP value of a reference signal from a second cell by a first cell, the second cell being an adjacent cell of the first cell (201); on the basis of the first RSRP value, the network side device confirming whether or not the first cell is capable of conducting autonomously the uplink-downlink configuration (202). Measuring the RSRP value to determine whether or not the cell is capable of conducting independently the uplink-downlink configuration allows for the normal operation of a dynamic uplink-downlink configuration, reduced interference between adjacent cells in a dynamic uplink-downlink configuration environment, and improved system efficiency.
摘要:
The disclosure provides a method of configuring sounding reference signal (SRS) for coordinated multi-point (CoMP) transmission. The method may include: determining for a CoMP UE in the cell set B a first SRS resource orthogonal with SRS resources configured for other UEs in the cell set A by exchanging information among cells within the cell set B; transmitting to the CoMP UE SRS configuration information describing the first SRS resource. The disclosure also provides apparatuses for configuring SRS of CoMP transmission.
摘要:
A configuration method, detection method and equipment for control channels of a relay system are provided in the present invention. The configuration method comprises: the network side transmits a Relay-Physical Downlink Control Channel (R-PDCCH) of a control channel to its service relay equipment, the related control information of said relay equipment is included in said R-PDCCH, said R-PDCCH is a dedicated R-PDCCH of said relay equipment. In the present invention, the dedicated control channel of the relay system is configured according to the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by a R-PDCCH, and the mapping from a R-PDDCH/Relay-Physical Downlink Shared Channel (R-PDSCH) to a Resource Element (RE), and the demand that one relay node dedicates a R-PDCCH is satisfied.
摘要:
The present invention discloses a resource scheduling method and system, a BS and a RN, which include that: the BS allocates an uplink subframe for performing uplink transmission of a backhaul link and a downlink subframe for performing downlink transmission of the backhaul link, and informs the RN of the allocation information of the uplink subframe and the downlink subframe of the backhaul link, or the BS only informs the RN of the allocation information of the uplink subframe or the downlink subframe of the backhaul link; the RN may determine, according to the received allocation information and a predefined timing relationship, an uplink subframe and a downlink subframe of the backhaul link of which the BS does not inform. By the solution of the present invention, an MBSFN subframe can be indicated to the RN, and uplink transmission conflict can be avoided.
摘要:
The embodiments of the present invention relate to a method for resource allocation of backhaul link control channel information and a device therefor. Upon application of technical solutions proposed by embodiments of the present invention and based on the condition of introducing the DMRS and CSI-RS, remaining REs which are not occupied by the CSI-RS and/or the DM-RS in an OFDM symbol is configured to constitute an REG, which is used to transmit or discard the backhaul link control channel information. Thus without much improvement on the existing LTE system specification, a resource allocation scheme of the backhaul link control channel information in corresponding physical resource blocks has been proposed, which accommodates for both simple specification design and full utilization on resources, and realizes flexible design and allocation in light of demands of the real system.
摘要:
Embodiments of the present invention relate to the technical field of wireless communication, and relate particularly to a method, a system, and a device for confirming an uplink-downlink configuration, for use in confirming via interference detection whether or not a cell is capable of conducting independently the uplink-downlink configuration. The method of the embodiments of the present invention comprises: a network side device confirming the receipt of a first RSRP value of a reference signal from a second cell by a first cell, the second cell being an adjacent cell of the first cell (201); on the basis of the first RSRP value, the network side device confirming whether or not the first cell is capable of conducting autonomously the uplink-downlink configuration (202). Measuring the RSRP value to determine whether or not the cell is capable of conducting independently the uplink-downlink configuration allows for the normal operation of a dynamic uplink-downlink configuration, reduced interference between adjacent cells in a dynamic uplink-downlink configuration environment, and improved system efficiency.
摘要:
The disclosure provides a method of configuring sounding reference signal (SRS) for coordinated multi-point (CoMP) transmission. The method may include: determining for a CoMP UE in the cell set B a first SRS resource orthogonal with SRS resources configured for other UEs in the cell set A by exchanging information among cells within the cell set B; transmitting to the CoMP UE SRS configuration information describing the first SRS resource. The disclosure also provides apparatuses for configuring SRS of CoMP transmission.