Abstract:
An uplink synchronization processing method, a User Equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when knowing that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.
Abstract:
An uplink synchronization processing method, a user equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when knowing that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.
Abstract:
An uplink synchronization processing method, a User Equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when knowing that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.
Abstract:
A random access method and an evolved Node B (eNB) is described. The method includes: receiving, by a target evolved Node B (eNB), a handover request message including information of multiple target component carriers selected by the source eNB; determining, by the target eNB, whether to allow the multiple target component carriers selected by the source eNB; sending, by the target eNB, a handover request acknowledgement message including information about at least two determined target component carriers for the UE. If the multiple target component carriers selected by the source eNB are allowed by the target eNB, the at least two determined target component carriers include the multiple target component carriers selected by the source eNB. Otherwise, the at least two determined target component carriers include one or more newly configured target component carriers configured by the target eNB.
Abstract:
Embodiments of the present invention provide a method, a device, and a system for determining timing advance grouping. In one embodiment, a base station adds a component carrier (CC) for a user equipment (UE). The base station determines a timing advance (TA) group to which the added CC belongs. The TA group is a set of CCs that can share a TA. The base station sends identification information that identifies the TA group to the UE.
Abstract:
Embodiments of the present invention disclose a random access response receiving and sending method, a user equipment, a base station, and a system. The method includes: after sending a dedicated random access preamble to a network side, on a physical downlink control channel, according to a pre-obtained dedicated identifier, detecting control signaling masked by using the dedicated identifier, where the dedicated identifier is a user equipment-specific temporary identifier configured by the network side for the user equipment, and the control signaling includes information about a physical downlink shared channel used to send a random access response and information required for decoding the random access response; and receiving the random access response on a corresponding physical downlink shared channel according to the control signaling.
Abstract:
An uplink synchronization processing method, a User Equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when knowing that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.
Abstract:
A method for ensuring parallel data random access and a user equipment are provided, which relate to the field of communications technologies. An embodiment of the present invention includes controlling a random access sequence transmitted by a user equipment through a physical random access channel PRACH not to be sent with other uplink transmission in the same subframe, or, when a random access sequence transmitted by a user equipment through a PRACH is sent with other uplink transmission in the same subframe, controlling a priority of power transmission of the PRACH and a priority of power transmission of an uplink channel over which the other uplink transmission is performed, when power is limited.
Abstract:
A method and a user equipment for controlling multiple communication systems to implement communication are disclosed. The method includes: when a long term evolution LTE system module in a UE is about to enter a discontinuous reception DRX sleep state or to temporarily stop data transmission, sending, by the LTE system module, first indication information to another system module in the UE, where the first indication information is used for indicating, to the other system module, that the LTE system module enters the DRX sleep state and at least part of time during which the LTE system module is in the DRX sleep state, or the first indication information is used for indicating that the other system module is capable of performing data transmission and time during which the other system module is capable of performing data transmission.
Abstract:
This application provides a communication method and an apparatus. The communication method includes: after determining a first uplink data transmission moment and a first duration, determining, by a terminal device, a first moment based on the first uplink data transmission moment and the first duration, and monitoring a control channel based on the first moment. In this way, the terminal device may send a power headroom report (PHR) to a network device based on the control channel detected through monitoring at the first moment, so that efficiency of feeding back the PHR by the terminal device can be effectively improved.