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Scheduling method and device for physical downlink control channel

A technology of a physical downlink control and scheduling device, applied in the field of communication, can solve problems such as limiting cell capacity, and achieve the effects of improving decoding performance, avoiding resource conflicts, and improving data transmission efficiency

Pending Publication Date: 2021-09-28
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Claims
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Problems solved by technology

[0007] However, with the increasing number of users that need to be scheduled in each transmission time interval (TTI), for example, in the case of using MU-MIMO technology to increase the cell capacity, or, if PDCCH needs to be simultaneously scheduled in the uplink in TDD technology Link and downlink subframes, the lack of PDCCH resources will limit the performance of cell capacity

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  • Scheduling method and device for physical downlink control channel
  • Scheduling method and device for physical downlink control channel
  • Scheduling method and device for physical downlink control channel

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] figure 1 A flowchart of a method for scheduling a physical downlink control channel according to an embodiment of the present application is shown. Wherein, the method includes step S1, step S2 and step S3.

[0029] Wherein, the method according to the embodiment of the present application is implemented by a device included in a base station. The base station includes, but is not limited to, a macro base station, a micro base station, a home base station, and the like.

[0030] refer to figure 1 , in step S1, based on each wide beam configurable in the cell, the base station forms a plurality of narrow beams corresponding to the wide beam through a beamforming operation on the physical downlink control channel.

[0031] Wherein, a cell may correspond to one or more configurable wide beams, and each wide beam corresponds to multiple narrow beams. ...

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Abstract

The embodiment of the invention aims to provide a method and a device for scheduling a physical downlink control channel. The method comprises the following steps: based on each configurable wide beam in a cell, forming a plurality of narrow beams corresponding to the wide beam in a physical downlink control channel through beam forming operation; for each UE in the cell, calculating a wide beam corresponding to the UE and a beam forming gain of each corresponding narrow beam based on the azimuth information of the UE; and selecting the narrow beam which obtains the maximum beam forming gain as a beam for transmitting data with the UE. The embodiments of the present application have the following advantages: by selecting different narrow beams for UEs in different orientations in a cell to transmit data, PDCCH resources can be multiplexed by a plurality of UEs to improve data transmission efficiency and improve performance of cell capacity.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a scheduling method and device for a physical downlink control channel. Background technique [0002] The physical downlink control channel (Physical downlink Control Channel, PDCCH) is used to schedule and allocate resources for the UE on the physical downlink shared channel (Physical downlink shared channel, PDSCH) or the physical uplink shared channel (Physical Uplink shared channel, PUSCH). For example, if a UE has data in PDSCH, the UE needs to know the location of the data. The PDCCH will tell the UE where the data it is looking for is located on the PDSCH. The PDCCH is composed of Control Channel Elements (CCE), and each CCE is composed of 36 Resource Elements (ResourceElement, RE). PDCCH further uses the concept of aggregation layer, which is a group of CCEs. Generally, there are 4 aggregation layers (Aggregation layer) in PDCCH: [0003] Aggregation la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12H04B7/0426
CPCH04W72/046H04W72/1273H04B7/043
Inventor 毕波邢亮何先华
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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