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Access method and device

An access method, an access technology, applied in the communication field

Active Publication Date: 2021-07-16
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the embodiments of the present invention is to provide an access method and device to solve the problem of an IAB accessing other IABs in a wireless backhaul scenario

Method used

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  • Access method and device
  • Access method and device
  • Access method and device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0080] Example 1: If the IAB1 initiated access is PREAB1 or DIAB1 or PIAB2 or DIAB2 reserved preamble, PIAB1 or DIAB1 or PIAB2 or DIAB2 behavior includes:

[0081] (a) If PIAB1 or DIAB1 or PIAB2 or DIAB2 can receive IAB1, PIAB1 or DIAB1 or PIAB2 or DIAB2 notification IAB1 access;

[0082] (b) If PIAB1 or DIAB1 or PIAB2 or DIAB2 cannot accept IAB1, PIAB1 or DIAB1 or PIAB2 or DIAB2 can be understood from the RAR PDCCH or PDSCH instructions for IAB1 access, it can be understood. YES, the embodiment of the present invention does not limit the specific form of the reserved bit and a specific code point.

example 2

[0083] Example 2: If PIAB1 or DIAB1 or PIAB2 or DIAB2 does not configure reserved access resources for IAB1:

[0084] (a) IAB1 behavior includes:

[0085] IAB1 The cell (Cell) of the PIAB1 or DIAB1 or PIAB2 or DIAB2 is not available for IAB1 access by default.

[0086] (b) IAB1 initiates access in PIAB1 or DIAB1 or PIAB2 or DIAB2. When PIAB1 or DIAB1 or PIAB2 or DIAB2 receives IAB1's preamble, PIAB1 or DIAB1 or PIAB2 or DIAB2 behavior can include any of the following:

[0087] (1) Notify IAB1 access;

[0088] (2) Indicates the Random Access Response, RAR) PDCCH / PDSCH to indicate the IAB1 access.

[0089] It should be noted that if PIAB1 or DIAB1 or PIAB2 or DIAB2 does not return RAR to IAB1, IAB1 may still try to send preamble, and to send preamle's number of times more than the maximum number of transmitted times.

[0090] In the embodiment of the present invention, a first IAB node is also provided. Since the principle of the first IAB node solves the problem is similar to the...

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Abstract

An embodiment of the present invention provides an access method and device, the method includes: sending an access request message to a second IAB node; receiving an indication message sent by the second IAB node, the indication message indicating that the second IAB node Allowing or prohibiting the access of the first IAB node; wherein, the indication message is determined by the second IAB node according to the reserved access resource and the access request message; the second IAB node is the The donor IAB node, the parent IAB node, or the child IAB node of the first IAB node. In the embodiment of the present invention, the second IAB node can send an indication message to the first IAB node according to the reserved access resources and the access request message from the first IAB node, and the indication message instructs the second IAB node to allow or prohibit the second IAB node. One IAB node access, which can ensure that the first IAB node is connected to a suitable IAB node as soon as possible, thereby solving the problem of IAB accessing other IABs in the wireless backhaul scenario.

Description

Technical field [0001] Embodiments of the present invention relate to communication technology, and more particularly to an access method and apparatus. Background technique [0002] Relay technology, in terms of one or more relay nodes between the base station and the user equipment (UE Equipment, UE), the relay node is responsible for moving the wireless signal once or multiple times, that is, the wireless signal After multi-jump to reach the base station or UE. For example, in a simpler two-hop, it is to divide a link of the base station-Ue into a base station-relay station and relay station-UE, so that there is a chance to replace a poor quality link to two A good quality link to achieve higher link capacity and better coverage. [0003] Wireless relay is studied in the fifth-generation communication technology (5G). The wireless relay retransmission technique also includes a wireless return link in 6GHz or more. The higher the network band, the higher the transmission distan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/22
CPCH04W40/22H04W74/0833H04W84/047H04W48/02H04W48/14H04B7/15528H04W28/26H04W48/12H04W48/16H04W74/002H04W88/14H04W72/23
Inventor 金巴吴凯鲍炜
Owner VIVO MOBILE COMM CO LTD