Abstract:
An electronic device for wireless communications, and a wireless communication method. The electronic device includes: one or more processors, each processor configured to: respectively conduct space-domain filtering on received signals of a plurality of antennas, respectively; estimate frequency shift of corresponding received signals based on the signals, on which space-domain filtering is conducted, of various antennas; estimate, according to the estimated frequency shift and a parameter of the space-domain filtering, a Doppler frequency shift generated by the relative motion between transceiving ends of the received signals and a carrier frequency offset generated by frequency inconsistency of the transceiving ends; and conduct frequency preprocessing on sent signals of the antennas according to the estimated Doppler frequency shift, and/or control to feed back information related to the estimated Doppler frequency shift to a signal sending end.
Abstract:
A base station side and user equipment side device and method in a wireless communication system, and a wireless communication system. The base station side device includes a processor configured to: respond to a random access request of the user equipment and determine that an access process initiated by the user equipment is a contention-based or a non-contention-based access process; and with respect to the contention-based access process, to prepare auxiliary access information for potential user equipment that has failed to access so that the user equipment that has failed to access and the base station can complete the access process based on interaction of auxiliary access information.
Abstract:
A base station control method for a wireless communication system, a base station control apparatus, a wireless communication system and an electronic device. The wireless communication system includes a small cell. The base station control apparatus includes an upper limit determination unit and a frequency band control unit; wherein the upper limit determination unit is configured to determine the upper limit of the estimated number of small cells using unlicensed frequency bands in a target region according to available unlicensed frequency band resources and estimated service volume in the target region; and the frequency band control unit is configured to control one or more small cells to use or stop using the unlicensed frequency bands according to the upper limit of the estimated number, so that the number of small cells operating at the unlicensed frequency bands is not greater than the upper limit of the estimated number.
Abstract:
A device, a spectrum management device, and a user equipment used for wireless communication. The spectrum management device used for wireless communication includes: a determination unit configured to determine, according to a spectrum perception result of an LTE system in the management range of the spectrum management device regarding an unauthorized frequency band, the frequency spectrum aging for the LTE system to use the unauthorized frequency band using different methods.
Abstract:
A radio resource management system and method, the system includes: an acquisition device acquiring a range to be protected of a high priority system and a positioning range of a low priority system based on position information about at least one high priority system and at least one low priority system; a selection device selecting, with regard to the high priority system in at least one high priority system group, a position where a reference generated by a low priority system to the high priority system satisfies a pre-determined condition, for each low priority system within the positioning range thereof, as a reference position of the low priority system based on the range to be protected of the high priority system; and a parameter determination device determining a working parameter of the low priority system for the high priority system based on the reference position of each low priority system.
Abstract:
A device and method for use in a Multi-Input Multi-Output MIMO wireless communication system are provided. The device used in the MIMO wireless communication system comprises: a matching unit configured to determine a matching degree of channel estimation information of a communication device to be scheduled with one or more reference vectors included in a reference vector group, wherein the reference vector group depends on an antenna array configuration of the MIMO wireless communication system; and a channel characteristic determining unit configured to determine correlation information of the one or more reference vectors with the matching degree satisfying a predetermined condition as one or more parameters reflecting channel characteristic(s) associated with the communication device. By applying the device used in the MIMO wireless communication system and wireless communication method according to the disclosure, it is possible to avoid interference among strong-space-correlated users, and thereby improve the efficiency of processing such as scheduling, noise reduction and so on.
Abstract:
The present disclosure provides a management apparatus and a method for wireless communication as well as an apparatus and a method for wireless communication. The management apparatus includes: a determining module, configured to select a communication unit satisfying a predetermined condition from among a communication unit cluster managed by the management apparatus, and determine interference information or load information of at least part of resource blocks corresponding to the communication unit.
Abstract:
A device and method for managing spectrum resources and a wireless communication device and method are provided. The method for managing spectrum resources of a wireless communication system according to the disclosure includes: acquiring resource utilization parameter information of a communication device to be managed, the resource utilization parameter information including the number of antennas; and determining spectrum resource allocation to the communication device based on the resource utilization parameter information. The method for managing spectrum resources enriches contents of signaling interaction between a communication device and a device for managing spectrum resources in a wireless communication system, thereby making it possible to sufficiently utilize a possible spatial freedom degree of a communication device in a multi-antenna system, and to efficiently reduce interference between communication devices or communication systems.
Abstract:
The invention discloses an electronic device and a method and device for implementing coordinated transmission between electronic devices. The electronic device comprises a coordination establishment module configured to send a coordination request signal to candidate coordination devices as well as determine coordination devices in accordance with a response of the candidate coordination device and establish coordination connection with the determined coordination device, and a data transmission module configured to transmit target data by a plurality of communication links, the plurality of communication links comprising communication links between the electronic device and the coordination device. The present invention can establish the coordination connection reasonably by initiating the coordination through the request and transmitting the data through the plurality of communication links by the coordination device, thereby effectively improving the data transmission speed through the plurality of the communication links.
Abstract:
Provided in the present disclosure are an apparatus and a method for spectrum management, and an apparatus and a method for a base station side and a user equipment side of wireless communication. The spectrum management apparatus comprises an acquisition unit configured to acquire spectrum utilization information of at least one wireless communication system on a predetermined frequency band within a predetermined area, a determination unit configured to determine a spectrum utilization efficiency of the corresponding wireless communication system within the predetermined area on the basis of the spectrum utilization information, and an adjustment unit configured to adjust spectrum sensing parameters of the corresponding wireless communication system on the predetermined frequency band within the predetermined area on the basis of the spectrum utilization efficiency.