Method and device for resource allocation of control channel, as well as method and device for transmitting wireless communication signal
A technology for controlling channel resources and an allocation method is applied in the field of wireless communication signal transmission methods and devices, and can solve the problems of increasing the probability of resource conflict and the like
Active Publication Date: 2018-08-28
ZTE CORP
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Problems solved by technology
With the introduction of multiple antennas in the LTE system, the overall capacity of the current LTE system has been improved as a whole, which greatly increases the number of users who need to transmit PDCCH in a certain subframe. The PDCCH capacity of the current system cannot meet the growing demand, resulting in user terminals The resource conflict probability corresponding to UE (User Equipment, UE) increases significantly
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] figure 1 An application environment diagram for a method for controlling channel resource allocation in an embodiment. In the long-term evolution system LTE (Long Term Evolution, LTE), there is a downlink signal, which is transmitted from the base station 110 to the user terminal UE (UserEquipment, UE). In the downlink signal Before transmission, that is, during the signal processing process of the base station, the downlink control information DCI (Downlink Control Information, DCI) corresponding to each user terminal needs to be transmitted through the Physical Downlink Control Channel (PD...
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The present invention relates to a method and a device for resource allocation of a control channel, as well as a method and a device for transmitting a wireless communication signal. The method for resource allocation of the control channel comprises the steps of: dividing a downlink broadcasting beam into at least two downlink broadcasting sub-beams, establishing the same virtual CCE (Control Channel Element) resource space for the each downlink broadcasting sub-beam; allocating the corresponding downlink broadcasting sub-beam to each user terminal according to beam location information about the location of the user terminal in the downlink broadcasting beam; respectively performing channel coding on original downlink control information corresponding to the user terminals located at the same downlink broadcasting sub-beam, so as to obtain corresponding current downlink control information; and allocating target CCE resource to the current downlink control information from the virtual CCE resource space according to convergence degree, scheduling sequence and the downlink broadcasting sub-beam corresponding to the user terminal. According to the technical scheme of the method ofthe invention, capacity of a PDCCH (Physical Downlink Control Channel) can be improved, and the probability of occurrence of conflict of resources corresponding to the user terminals can be reduced.
Description
technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for allocating control channel resources and a corresponding method and device for transmitting wireless communication signals. Background technique [0002] In the long term evolution system LTE (Long Term Evolution, LTE), a physical downlink control channel (Physical Downlink Control Channel, PDCCH) is used to carry uplink and downlink control information technology, including resource scheduling allocation and other control information. [0003] Since each PDCCH in the LTE system is transmitted on L consecutive CCEs (Control Channel Elements, Control Channel Elements), the starting position index of the CCE must be an integer multiple of L. This design makes the capacity of the PDCCH limited. With the introduction of multiple antennas in the LTE system, the overall capacity of the current LTE system has been improved as a whole, which greatly i...
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IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0037H04L5/0053H04W72/046H04W72/23H04L5/00H04W72/04
Inventor 牟海宁李杰
Owner ZTE CORP