Random access method, network node and user equipment
The present disclosure relates to a communication method and system for converging a 5 th -Generation (5G) communication system for supporting higher data rates beyond a 4 th -Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a random access method, a network node and a user equipment. With the solution of the above embodiment of the present disclosure, the performance of the UE randomly accessing the target cell can be improved.
1. A method by a user equipment (UE) in a wireless communication system, the method comprising:
measuring a signal of a target cell;
transmitting, to a network node, a measurement report on the signal of the target cell;
receiving, from the network node, a handover command including resource configuration information comprising dedicated random access resource configuration information associated with a synchronization signal block (SSB); and
performing a random access to the target cell based on the resource configuration information.
2. The method according to claim 1 , wherein the dedicated random access resource configuration information includes a threshold for selecting the SSB.
3. The method according to claim 1 ,
wherein the random access resource configuration information includes dedicated random access resource configuration information associated with channel status information reference signals (CSI-RSs), and
wherein the dedicated random access resource configuration information includes a threshold for selecting a CSI-RS.
4. A method by a network node in a wireless communication system, the method comprising:
receiving, from a user equipment (UE), a measurement report on a signal of a target cell; and
transmitting, to the UE, a handover command including resource configuration information comprising dedicated random access resource configuration information associated with a synchronization signal block (SSB) based on the measurement report.
5. The method according to claim 4 , wherein the dedicated random access resource configuration information includes a threshold for selecting the SSB.
6. The method according to claim 4 ,
wherein the random access resource configuration information includes dedicated random access resource configuration information associated with channel status information reference signals (CSI-RSs), and
wherein the dedicated random access resource configuration information includes a threshold for selecting a CSI-RS.
7. A user equipment, comprising:
a communication interface configured to communicate;
a processor; and
a memory storing computer-executable instructions that, when executed by the processor, cause the processor to perform the following operations:
measuring a signal of a target cell;
transmitting, to a network node, a measurement report on the signal of the target cell;
receiving, from the network node, a handover command including resource configuration information comprising dedicated random access resource configuration information associated with a synchronization signal block (SSB); and
performing a random access to the target cell based on the resource configuration information.
8. The user equipment according to claim 7 , wherein the dedicated random access resource configuration information includes a threshold for selecting the SSB.
9. The user equipment according to claim 7 ,
wherein the random access resource configuration information includes dedicated random access resource configuration information associated with channel status information reference signals (CSI-RSs), and
wherein the dedicated random access resource configuration information includes a threshold for selecting a CSI-RS.
10. A network node, comprising:
a communication interface configured to communicate;
a processor; and
a memory storing computer-executable instructions that, when executed by the processor, cause the processor to perform the following operations:
receiving, from a user equipment (UE), a measurement report on a signal of a target cell; and
transmitting, to the UE, a handover command including resource configuration information comprising dedicated random access resource configuration information associated with a synchronization signal block (SSB) based on the measurement report.
11. The network node according to claim 10 , wherein the dedicated random access resource configuration information includes a threshold for selecting the SSB.
12. The user equipment according to claim 10 ,
wherein the random access resource configuration information includes dedicated random access resource configuration information associated with channel status information reference signals (CSI-RSs), and
wherein the dedicated random access resource configuration information includes a threshold for selecting a CSI-RS.