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Efficient CORESET configuration

A technology for wireless devices and transmission parameters, which is applied in the field of control channel transmission, and can solve problems such as constraints and waste of broadcast resources

Pending Publication Date: 2020-08-21
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, doing so imposes significant constraints in systems with special system information (SI) and / or paging coverage requirements
Also, for some types of downlink control information (e.g. RAR information) an additional CORESET configuration is required (which may or may not be separate and distinct from the CORESET configuration e.g. for RMSI) wasting broadcast resources

Method used

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  • Efficient CORESET configuration
  • Efficient CORESET configuration
  • Efficient CORESET configuration

Examples

Experimental program
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Embodiment Construction

[0031] The solution proposed herein determines a first transmission parameter (e.g., a control resource set (CORESET) or search space) for monitoring a downlink control channel that schedules downlink control information provided to a wireless device in a first signal , and select a first transmission parameter or one or more different transmission parameters for monitoring a downlink control channel that schedules downlink control information provided to the wireless device in the one or more second signals. In order to allow flexible and efficient use of resources, the first signal sent by the base station indicates the transmission parameters selected for the second signal. Before providing further details of the solutions proposed herein, general information about the wireless system regarding downlink control information is first provided below.

[0032] In general, a signaling parameter set refers to a combination of subcarrier spacing (SCS), orthogonal frequency divisio...

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Abstract

A network node determines a first transmission parameter for transmission of downlink control channel scheduling the downlink control information provided to a wireless device in a first signal, and selects either the first transmission parameter or one or more different second transmission parameters for transmission of the downlink control channel scheduling for the downlink control informationprovided to the wireless device in one or more second signals. To allow flexibility and efficient use of resources, the first signal sent by the base station indicates the one or more second transmission parameters as well as the selected transmission parameter(s) for the second signals. In one exemplary embodiment, the first and second transmission parameters comprise first and second control resource set (CORESET) configurations. In another exemplary embodiment, the first and second transmission parameters comprise first and second search spaces.

Description

technical field [0001] The solutions proposed herein relate generally to control channel transmissions and, more particularly, to search space configurations for such control channel transmissions. Background technique [0002] In wireless communication systems, a base station provides control signaling to one or more wireless devices to identify / allocate resources available for communication between the base station and the wireless devices. In some systems, the base station provides such control information in a defined / scheduled downlink control channel. For example, in New Radio (NR), the base station may configure search spaces and / or control resource sets (CORESETs), which define time and frequency resources for downlink control information included in signaling from the base station. The wireless device then monitors the configured search space and / or CORESET for signals to be received from the base station. [0003] In the baseline (baseline), the base station prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/12
CPCH04L5/0042H04L5/0053H04L5/0094H04W72/23H04W68/005H04W72/0446H04W72/0453H04W72/53
Inventor A.莱尔P.弗伦格A.格罗夫伦李静雅
Owner TELEFON AB LM ERICSSON (PUBL)