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Method for sending downlink control information, network equipment and storage medium

A technology for controlling information and network equipment, applied in a method of sending downlink control information, information processing, network equipment and storage medium fields, can solve problems such as limited control resources and data resources, improve scheduling efficiency and save control resources Effect

Pending Publication Date: 2019-08-16
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In existing systems, control resources are more constrained than data resources

Method used

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  • Method for sending downlink control information, network equipment and storage medium
  • Method for sending downlink control information, network equipment and storage medium
  • Method for sending downlink control information, network equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The DCI only includes the user indication field, supports a fixed number of 10 users, and the data transmission status indicator B of each user number (UE_idx) occupies 1 bit, that is, occupies 10 bits in total. Note that the specific number of users is only used as an example. like image 3 shown.

[0068] Its feature field is: [UE_idx1,UE_idx2,...,UE_idx10]=[1 0 1 1 0 1 1 1 0 0];

[0069] Indicates that users corresponding to UE_idx1, UE_idx3, UE_idx4, UE_idx6, UE_idx7, and UE_idx8 have data transmission; users corresponding to UE_idx2, UE_idx5, UE_idx9, and UE_idx10 have no data transmission.

[0070] The user's MCS domain, RA domain and other functional domains can be configured through high-layer signaling or other methods.

Embodiment 2

[0072] like Figure 4 As shown, the user indication field in the DCI supports a fixed number of 10 users, each user number is (UE_idx), and the data transmission status indication occupies 1 bit, that is, occupies 10 bits in total; the MCS field occupies N1 bits. Note that the specific number of users is only used as an example.

[0073] Its feature field is: [UE_idx1,UE_idx2,...,UE_idx10]=[1 0 1 1 0 1 1 1 0 0];

[0074] Indicates that users corresponding to UE_idx1, UE_idx3, UE_idx4, UE_idx6, UE_idx7, and UE_idx8 have data transmission; users corresponding to UE_idx2, UE_idx5, UE_idx9, and UE_idx10 have no data transmission.

[0075] Among them, there is the same modulation and coding mode adopted by multiple users for data transmission, and the specific modulation and coding mode is indicated by the MCS field.

[0076] The user RA domain and other functional domains can be configured through high-layer signaling or other methods.

Embodiment 3

[0078] The base station notifies the user group through high-level signaling that the field supports 8 users, and the data transmission status indication of each user equipment occupies 1 bit, occupying a total of 8 bits; the MCS field occupies N1 bits; the resource allocation field occupies N2 bits, such as Figure 5 shown. Note that the number of users configured by high-layer signaling is only used as an example.

[0079] Its feature field is: [UE_idx1,UE_idx2,...,UE_idx8]=[1 0 0 1 0 1 0 0];

[0080] Indicates that the users corresponding to UE_idx1, UE_idx4, and UE_idx6 have data transmission. Users corresponding to UE_idx2, UE_idx3, UE_idx5, UE_idx7, and UE_idx8 have no data transmission.

[0081] For specific resource usage, see Image 6 For each user occupies all the allocated time-frequency resources, and each user receives and demodulates data through a specific codeword allocated by the upper layer.

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Abstract

The invention discloses a method for sending downlink control information, network equipment and a storage medium, and the method comprises the steps: sending the downlink control information to userequipment, the format of the downlink control information at least comprising a user indication domain and / or other feature domains, the user indication domain being used for indicating a group of user equipment comprising N pieces of user equipment and indication information of a data transmission state corresponding to each piece of user equipment, N being a positive integer, the other feature domains comprising at least one of a modulation and coding scheme (MCS) domain and / or a resource allocation domain, the MCS domain being used for indicating the group of user equipment to adopt the same MCS mode, and the resource allocation domain being used for indicating the user equipment to occupy all allocated time-frequency resources or part of time-frequency resources.

Description

technical field [0001] The invention relates to information processing technology in the communication field, in particular to a method for sending downlink control information, network equipment and a storage medium. Background technique [0002] In existing communication systems, user data scheduling generally adopts a UE-specific method, which has the advantage that the base station can allocate appropriate resources to each user based on the channel conditions and service types of each user. Specifically, in the downlink control command DCI Indicates the corresponding time-frequency resource location, modulation and coding scheme (MCS), number of transmission blocks, transmission scheme, retransmission version, etc. Different transmission modes or resource allocation methods correspond to different DCI formats and DCI lengths. UE-specific resource scheduling will occupy more control channel resources when the number of users is very large. In existing systems, control ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/121H04W72/23
Inventor 倪吉庆周伟王森
Owner CHINA MOBILE COMM LTD RES INST
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