Method and system for handling conflict between random access process and carrier operation process

A technology of random access process and operation process, which is applied in the field of communication and can solve problems such as abnormal random access process and data loss

Inactive Publication Date: 2011-12-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of this, the main purpose of the present invention is to provide a method and system for handling the conflict between the random access process and the carrier operation process, so as to solve the random access process abnormality or data loss caused by the conflict between the random access process and the carrier operation process The problem

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  • Method and system for handling conflict between random access process and carrier operation process
  • Method and system for handling conflict between random access process and carrier operation process

Examples

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Effect test

Embodiment 1

[0071] Embodiment 1: The UE receives a carrier operation command and needs to trigger and execute a random access procedure during the carrier operation process.

[0072] After receiving the carrier operation command, the UE executes the carrier operation process. When the UE is in the uplink synchronization state, when the UE triggers an SR, because the UE has no available PUCCH resources for sending the SR, the UE will trigger a random access procedure.

[0073] In this case, according to the different processing methods of the scheduling gap, there are two different processing methods for the conflict between the random access process and the carrier operation process:

[0074] Method A, according to the first processing method of the scheduling gap, after receiving the carrier operation command, the UE executes the carrier operation process and is in the scheduling gap. In order to avoid unnecessary conflicts and reduce the processing complexity of the base station and UE...

Embodiment 2

[0083] Embodiment 2: The UE receives a carrier operation command during the process of performing random access, and needs to perform a carrier operation process.

[0084] The scenarios where the base station triggers the carrier operation process during the random access process of the UE include the following two scenarios:

[0085] Scenario 1: When the UE is in the uplink synchronization state, the UE triggers an SR, but when the UE has no available PUCCH resources for sending the SR, the UE initiates a random access procedure. During the random access process, because the base station cannot know that the UE is currently performing the random access process before the contention conflict is resolved, the base station may send a carrier operation command to the UE to trigger the carrier operation process during the above random access process.

[0086] Scenario 2: When the UE detects uplink out-of-synchronization and is in the "asynchronous" state, if the uplink data arrive...

Embodiment 3

[0095] Embodiment 3: The carrier operation command received by the UE triggers the UE to initiate a random access procedure, that is, the random access procedure and the carrier operation procedure are concurrent.

[0096] When the UE is in the uplink out-of-sync state, the base station detects that the UE has lost uplink synchronization, and the base station judges that a large amount of downlink data needs to be sent to the UE, the base station sends a carrier operation command to the UE. When the UE judges that there is downlink data arriving and the UE is in the uplink out-of-sync state, on the one hand, the UE needs to initiate a random access procedure to reacquire the uplink synchronization with the base station; on the other hand, because the downlink data is a carrier operation command, one of the UE or more radios need to be adjusted.

[0097] In this case, according to the different processing methods of the scheduling gap, there are two different ways to handle the...

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Abstract

The invention discloses a method for processing conflicts between a random access process and a carrier operation process, including: when the random access process conflicts with the carrier operation process, user equipment (UE) preferentially executes the random access process; or, the UE preferentially executes the carrier The operation process; or the UE performs the random access process and the carrier operation process at the same time; the carrier operation process refers to that the UE performs configuration according to the carrier operation command sent by the serving base station to configure the secondary carrier, delete the secondary carrier, activate the secondary carrier, or deactivate the secondary carrier. , delete, activate, or deactivate the process of the secondary carrier; the present invention also discloses a processing system for the conflict between the random access process and the carrier operation process, through which the conflict between the random access process and the carrier operation process can be avoided, and random The access process is abnormal.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for dealing with conflicts between a random access process and a carrier operation process. Background technique [0002] In order to provide higher data rates to mobile users, the Long Term Evolution Advanced system (LTE-A, Long Term Evolution Advance) proposes a carrier aggregation technology (CA, Carrier Aggregation), the purpose of which is to provide corresponding capabilities for user equipment (UE, User Equipment) provides greater bandwidth and increases the peak rate of the UE. In LTE, the maximum transmission bandwidth supported by the system is 20MHz. Carrier aggregation is to aggregate two or more component carriers (CC, Component Carriers, which can be referred to as carriers for short) to support a transmission bandwidth greater than 20MHz, and the maximum does not exceed 100MHz. The LTE-A system of the carrier aggregation technology is a multi-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
Inventor 施小娟
Owner ZTE CORP
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