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User equipment and detection method and device for physical downlink control channel of user equipment

A technology of physical downlink control and detection method, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problem of not being able to achieve better performance, simplify blind detection complexity, avoid conflicts, and improve robustness sexual effect

Active Publication Date: 2019-10-18
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, it is only possible to make a compromise between improving the robustness of PDCCH and avoiding the congestion of PDCCH resources allocated by the network, but it is impossible to achieve better performance in the above two aspects at the same time

Method used

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  • User equipment and detection method and device for physical downlink control channel of user equipment
  • User equipment and detection method and device for physical downlink control channel of user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] As described below, an embodiment of the present invention provides a method for detecting a physical downlink control channel.

[0055] refer to figure 1 The flow chart of the detection method for the physical downlink control channel is shown in detail below through specific steps:

[0056] S101. Determine the configuration of an aggregation level combination or a PDCCH candidate combination.

[0057] The configuration of the aggregation level combination or the PDCCH candidate combination may be determined by the search space configuration corresponding to the member aggregation level or member PDCCH candidate included in it.

[0058] The search spaces corresponding to several member aggregation levels or member PDCCH candidates in the same aggregation level combination or PDCCH candidate combination have the same slot period and / or offset;

[0059] The search spaces corresponding to several member aggregation levels or member PDCCH candidates in the same aggregati...

Embodiment 2

[0090] As described below, an embodiment of the present invention provides a detection device for a physical downlink control channel.

[0091] refer to figure 2 The structure block diagram of the detection device for the physical downlink control channel is shown.

[0092] The detection device of the physical downlink control channel includes: a configuration unit 201, a combination unit 202 and a detection unit 203; wherein the main functions of each unit are as follows:

[0093] The configuration unit 201 is adapted to determine the configuration of the aggregation level combination or the PDCCH candidate combination;

[0094] The combining unit 202 is adapted to determine the aggregation level combination or the PDCCH candidate combination according to the configuration of the aggregation level combination or the PDCCH candidate combination, and the aggregation level or the PDCCH candidate in the aggregation level combination or the PDCCH candidate combination is used as...

Embodiment 3

[0113] As described below, embodiments of the present invention provide user equipment.

[0114] The difference from the prior art is that the user equipment includes an apparatus for detecting a physical downlink control channel as provided in the embodiment of the present invention. Therefore, the user equipment can determine the configuration of the aggregation level combination or the PDCCH candidate combination according to the instruction of the base station, and determine the aggregation level combination or the PDCCH candidate combination according to the configuration of the aggregation level combination or the PDCCH candidate combination. The aggregation level or PDCCH in the prior art The candidate is used as the "member aggregation level" or "member PDCCH candidate" in the aggregation level combination or PDCCH candidate combination, according to the configuration of the aggregation level combination or PDCCH candidate combination, the PDCCH candidate corresponding ...

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Abstract

The invention discloses user equipment and a detection method and a device for a physical downlink control channel of the user equipment. The method comprises the following steps: determining configuration of an aggregation level combination or a PDCCH candidate combination; determining the aggregation level combination or the PDCCH candidate combination according to the configuration of the aggregation level combination or the PDCCH candidate combination, and taking the aggregation level or the PDCCH candidate in the aggregation level combination or the PDCCH candidate combination as a memberaggregation level or a member PDCCH candidate; and performing blind detection on the PDCCH candidate corresponding to the aggregation level combination or the PDCCH candidate combination according tothe configuration of the aggregation level combination or the PDCCH candidate combination. According to the invention, on one hand, the robustness of the PDCCH is improved, and on the other hand, toolarge continuous resources corresponding to the PDCCH with a certain high aggregation level do not occur, so that the conflict between the improvement of the robustness of the PDCCH and the avoidanceof the blockage of PDCCH resources allocated by the network is eliminated, and the two aspects can be well considered.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for detecting user equipment and its physical downlink control channel. Background technique [0002] A PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) is carried on a Control Resource Set (Control Resource Set, CORESET). The PDCCH is composed of one or more CCEs (Control Channel Element, control channel element). One CCE is composed of multiple REGs (Resource Element Group, resource element group) (6 by default), and one REG is equivalent to one physical resource block (Physical Resource Block, PRB) on one OFDM symbol. [0003] During wireless communication, the user equipment needs to detect the PDCCH in a search space (Search space). Since the user equipment usually cannot predict in advance where the information it wants to receive is located, the above process of detecting the PDCCH is usually blind de...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W28/04
CPCH04W24/02
Inventor 周化雨樊婷婷刘萌萌黄甦
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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