Methods and systems for propagation delay compensation in wireless communication networks
Disclosed are devices, systems and methods for propagation delay compensation in wireless communications. In some implementations, a data communication method includes receiving, by a mobile device, reference time information; and performing, upon determination that the mobile device has a capability for a propagation delay compensation, by the mobile device, the propagation delay compensation on the reference time information.
1. A data communication method, comprising:
receiving, by a mobile device, from a communication node, time information and an indication whether to perform a propagation delay compensation; and
performing, by the mobile device, the propagation delay compensation on the time information based on a timing advance value,
wherein the communication node is divided into a gNB distribution unit (gNB-DU) and a gNB central unit (gNB-CU), wherein the timing advance value used by the mobile device to perform the propagation delay compensation is based on a first time information transmitted from the gNB distribution unit (gNB-DU) to the gNB central unit (gNB-CU), wherein transmitting the first time information from the gNB distribution unit (gNB-DU) to the gNB central unit (gNB-CU) is actively triggered by the gNB distribution unit (gNB-DU) or triggered in response to a request from the gNB central unit (gNB-CU).
2. The method of claim 1 , wherein the indication is transmitted through a downlink information transfer message.
3. A data communication method, comprising:
transmitting, by a gNB distribution unit (gNB-DU), to a gNB central unit (gNB-CU), time information associated with a propagation delay compensation including a timing advance value, wherein transmitting the time information associated with the propagation delay compensation from the gNB distribution unit (gNB-DU) to the gNB central unit (gNB-CU) is actively triggered by the gNB distribution unit (gNB-DU) or triggered in response to a request from the gNB central unit (gNB-CU).
4. The method of claim 3 , further comprising receiving, by the gNB distribution unit (gNB-DU), from the gNB central unit (gNB-CU), the request for the time information associated with the propagation delay compensation.
5. An apparatus for wireless communication, comprising a memory and a processor, wherein the processor reads code from the memory and implements a method, comprising:
receiving, by a mobile device, from a communication node, time information and an indication whether to perform a propagation delay compensation; and
performing, by the mobile device, the propagation delay compensation on the time information based on a timing advance value,
wherein the communication node is divided into a gNB distribution unit (gNB-DU) and a gNB central unit (gNB-CU), wherein the timing advance value used by the mobile device to perform the propagation delay compensation is based on a first time information transmitted from the gNB distribution unit (gNB-DU) to the gNB central unit (gNB-CU), wherein transmitting the propagation delay compensation from the gNB distribution unit (gNB-DU) to the gNB central unit (gNB-CU) is actively triggered by the gNB distribution unit (gNB-DU) or triggered in response to a request from the gNB central unit (gNB-CU).
6. The apparatus of claim 5 , wherein the indication is transmitted through a downlink information transfer message.
7. An apparatus for wireless communication, comprising a memory and a processor, wherein the processor reads code from the memory and implements a method, comprising:
transmitting, by a gNB distribution unit (NB-DU), to a gNB central unit (gNB-CU), time information associated with a propagation delay compensation including a timing advance value, wherein transmitting the time information associated with the propagation delay compensation from the gNB distribution unit (gNB-DU) to the gNB central unit (gNB-CU) is actively triggered by the gNB distribution unit (gNB-DU) or triggered in response to a request from the gNB central unit (gNB-CU),
wherein the apparatus is the gNB distribution unit (gNB-DU).
8. The apparatus of claim 7 , wherein further comprising receiving, by the gNB distribution unit (gNB-DU), from the gNB central unit (gNB-CU), the request for the time information associated with the propagation delay compensation.