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Random access message processing method and terminal

A technology of random access message and processing method, which is applied in the field of random access message processing method and terminal, and can solve the problems of large transmission interference of communication system and the like

Pending Publication Date: 2020-09-01
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a random access message processing method and a terminal to solve the problem of relatively large transmission interference in a communication system

Method used

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  • Random access message processing method and terminal
  • Random access message processing method and terminal
  • Random access message processing method and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0079] As an optional implementation manner, the random access message includes:

[0080] Message (msg)1 during the 4-step random access procedure; or

[0081] msg3 during the 4-step random access process; or

[0082] Random access message in 2-step random access process.

[0083] Wherein, the above-mentioned 4-step random access process may be a random access process in which random access is realized through 4 steps. For example: in the 4-step random access channel (Random Access Channel, RACH), the terminal first sends msg1 to the network, and the msg1 may contain a preamble; after the network detects the preamble, it will send msg2, containing the preamble corresponding Random Access Response (RAR) message; after receiving msg2, the terminal sends msg3 according to the instruction of RAR; after receiving msg3, the network will send msg4, including the contention resolution ID; the terminal receives msg4, and it is completed 4-step random access;

[0084] The above two-...

Embodiment 1

[0138] Such as Figure 4 As shown in FIG. When , the DCI indicates the RO used to transmit the random access channel PRACH, and the RO is located in slot (slot) k;

[0139] And the terminal receives an uplink cancellation instruction, the uplink cancellation instruction indicates the time domain / frequency domain resource on slot k

[0140] If the RO indicated by the DCI for transmitting the random access channel PRACH partially or completely overlaps with the time-frequency domain resources indicated by the uplink cancel instruction, the terminal cancels sending the random access channel on the RO.

Embodiment 2

[0142] If the network triggers the terminal to perform a random access process, the terminal receives an uplink cancellation command, and cancels the random access process triggered by the network, the terminal can use the uplink transmission resources configured or scheduled by the network, such as dynamically scheduled PUSCH, semi-persistent scheduling The configuration authorization (configured grant) transmission is reported to the network that the random access process is cancelled;

[0143] The terminal notifies the upper layer through the physical layer to suspend the power ramping and preamble transmission counters.

[0144] In the embodiment of the present invention, the following can be realized:

[0145] When the terminal is performing a random access process, when the time domain resource of the random access message overlaps with the time domain resource (part or all) indicated by the uplink cancel instruction, the terminal cancels (part or all) transmission of th...

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Abstract

The embodiment of the invention provides a random access message processing method and a terminal. The method comprises the following steps: receiving an uplink cancel instruction; and if the resourceindicated by the uplink cancellation instruction is overlapped with the resource of the random access message, cancelling transmission of the random access message. The embodiments of the present invention can reduce transmission interference in a communication system.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for processing random access messages and a terminal. Background technique [0002] Currently, the communication system supports different types of uplink transmissions to share the same resource pool. For example, in the 5G communication system, Ultra Reliable Low Latency Communications (URLLC) can be supported to share the same resource with other uplink transmissions. Pool, the URLLC service transmission is dynamically scheduled by the network device to be multiplexed with other uplink transmissions. However, when different types of uplink transmissions share the same resource pool, one uplink transmission may interfere with another uplink transmission, resulting in relatively large transmission interference in the communication system. Contents of the invention [0003] Embodiments of the present invention provide a random access message processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W74/00H04W72/54
CPCH04W74/006H04W72/541
Inventor 陈晓航潘学明
Owner VIVO MOBILE COMM CO LTD
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