Unlock instant, AI-driven research and patent intelligence for your innovation.

Random access method and device, user equipment

A random access and user equipment technology, applied in wireless communication, electrical components, etc., can solve problems such as time domain resource conflicts

Active Publication Date: 2022-03-15
VIVO MOBILE COMM CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a random access method and device, and user equipment, which can solve the conflict between the transmission time of the random access message and the time domain resource indicated by the network side message when the user equipment performs the random access process The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Random access method and device, user equipment
  • Random access method and device, user equipment
  • Random access method and device, user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] In this embodiment, the network side configures the UE to send msgAPRACH and / or PUSCH on a group of symbol resources in a time slot, and the UE detects a DCI indicating that the UE receives CSI-RS or PDSCH on the symbol resources in the time slot , the symbol resource indicated by the DCI overlaps in time with the symbol resource used by the UE to send msgAPRACH and / or PUSCH.

[0082] In a specific example, if the time interval from the detection of the end position of the time domain resource where the DCI is located to any symbol resource, such as symbol resource A, of the time slot where the msgA PRACH and / or PUSCH is transmitted is less than the preset threshold, Then the UE does not cancel the transmission of the msgA PRACH and / or PUSCH before the symbol resource A; the UE cancels the remaining msgA PRACH and / or PUSCH transmission starting from the symbol resource A.

[0083] In another specific example, within a preset time before an effective msgA PRACH and / or PU...

Embodiment 2

[0085] In this embodiment, the network side configures or instructs the UE to send msgAPRACH and / or PUSCH on a group of symbol resources in a time slot, and the UE detects a DCI indicating the time slot format information, and the UE does not expect the time slot format information The transmission direction of the indicated symbol resource conflicts with the symbol resource that the UE sends msgA PRACH and / or PUSCH, for example, the UE does not expect the slot format information to indicate that the symbol resource that the UE sends msgA PRACH and / or PUSCH is a downlink symbol resource.

Embodiment 3

[0087] In this embodiment, the network side configures or instructs the UE to send msgAPRACH and / or PUSCH on a group of symbol resources in one time slot.

[0088] If the symbol resource for sending msgA PRACH and / or PUSCH is a flexible resource indicated by semi-static TDD configuration information, or the UE is not configured with semi-static TDD configuration information, when the UE detects a time slot format information DCI,

[0089] If the time slot format information indicates that the UE sends msgA PRACH and / or PUSCH symbol resources as flexible symbol resources, then the UE sends msgA PRACH and / or PUSCH on the time domain resources configured or indicated by the network side;

[0090] If the symbol resource for sending msgA PRACH and / or PUSCH indicated by the time slot format information is an uplink symbol resource, then the UE sends msgAPRACH and / or PUSCH on the time domain resource configured or indicated by the network;

[0091] Or the UE does not expect the time...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a random access method and device, and user equipment, belonging to the technical field of wireless communication. Wherein, the random access method, applied to the user equipment, includes: when the time domain resource of the random access message conflicts with the time domain resource indicated by the message on the network side, performing any of the following: at the time of the random access message The domain resources perform the transmission of the random access message; cancel the transmission of the random access message; postpone the transmission of the random access message; ignore the network side message. The technical scheme of the present invention can solve the problem that the transmission time of the random access message conflicts with the time domain resource indicated by the network side message when the user equipment performs the random access process.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a random access method and device, and user equipment. Background technique [0002] In the traditional uplink transmission mode, if the user equipment (User Equipment, UE) needs to send uplink data, it must first obtain uplink synchronization information through a random access process, that is, obtain uplink timing advance (Timingadvance, TA) information from the network side. After obtaining the uplink synchronization information, the UE can send uplink data through dynamic scheduling or semi-persistent scheduling. [0003] In the 2-step random access process (Random Access Channel, RACH), the UE sends msgA to the network-side device, and the network-side device sends msgB to the UE after receiving msgA, and the UE completes 2-step random access after receiving msgB . [0004] In the case of Time Division Duplexing (TDD), for a certain transmission mom...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/00H04W74/08H04W72/04
CPCH04W74/004H04W74/0841H04W74/0866H04W72/0446H04W74/0833H04W72/23H04W74/006
Inventor 陈晓航孙鹏
Owner VIVO MOBILE COMM CO LTD