CN-115942489-B - Method and apparatus for indication of reference signals in a wireless system

Abstract

The present disclosure relates to a pre-fifth generation (5G) or 5G communication system provided to support higher data rates than fourth generation (4G) communication systems such as Long Term Evolution (LTE). There is provided a user equipment, UE, in a wireless communication system, the UE comprising a transceiver and at least one processor coupled to the transceiver and configured to receive, via radio resource control, RRC, signaling from a base station, BS, a configuration of a first set of reference unit resources associated with quasi co-location, QCL, information, and a configuration of a second set of channel state information, CSI, reference signal, CSI-RS, resources associated with channel state information, CSI, reporting, receive, from the BS, a medium access control, MAC, control element, CE, and identify activation of the one or more CSI-RS resources and a QCL relationship between CSI-RS resources of the one or more CSI-RS resources and reference unit resources of the one or more reference unit resources based on the received MAC CE.

Inventors

• NAN YINGHAN
• B.L. Engel

Assignees

• 三星电子株式会社

Dates

Publication Date

20260505

Application Date

20180321

Priority Date

20180314

Claims (12)

1. 1. A user equipment, UE, in a wireless communication system, the UE comprising: transceiver, and At least one processor coupled to the transceiver and configured to: Receiving, via radio resource control, RRC, signaling, first configuration information of at least one reference cell resource associated with quasi co-located, QCL, information and second configuration information comprising a set of channel state information, CSI-RS, resources from a base station, BS; Receiving a medium access control MAC control element CE from a BS, comprising: information indicating a set of CSI-RS resources included in the second configuration information, and Information indicating at least one reference cell resource included in the first configuration information; And Identifying a QCL relationship between at least one CSI-RS resource and at least one reference cell resource of the set of CSI-RS resources based on the received MAC CEs, Wherein the QCL information is associated with receive Rx, beam related spatial parameters.
2. 2. The UE of claim 1, wherein the at least one reference element resource is a CSI-RS resource or a synchronization signal SS block.
3. 3. The UE of claim 1, wherein the second configuration information further comprises: information about resource elements RE, mapping patterns, Information about the number of antenna ports, Information about power control, and Information about periodicity and offset.
4. 4. A base station, BS, in a wireless communication system, the BS comprising: transceiver, and At least one processor coupled to the transceiver and configured to: Transmitting, via radio resource control, RRC, signaling, to the user equipment, UE, first configuration information of at least one reference cell resource associated with the quasi co-located, QCL, information, and second configuration information comprising a set of channel state information, CSI-RS, resources; transmitting a medium access control, MAC, control element, CE, to a UE, comprising: information indicating a set of CSI-RS resources included in the second configuration information, and Information indicating at least one reference cell resource included in the first configuration information, and Wherein the MAC CE is configured to indicate a QCL relationship between at least one CSI-RS resource and at least one reference cell resource among the set of CSI-RS resources, Wherein the QCL information is associated with receive Rx, beam related spatial parameters.
5. 5. The BS of claim 4, wherein the at least one reference unit resource is a CSI RS resource or a synchronization signal SS block.
6. 6. The BS of claim 4, wherein the second configuration information further comprises: information about resource elements RE, mapping patterns, Information about the number of antenna ports, Information about power control, and Information about periodicity and offset.
7. 7. A method performed by a user equipment, UE, in a wireless communication system, the method comprising: Receiving, via radio resource control, RRC, signaling, first configuration information of at least one reference cell resource associated with quasi co-located, QCL, information and second configuration information comprising a set of channel state information, CSI-RS, resources from a base station, BS; Receiving a medium access control MAC control element CE from a BS, comprising: information indicating a set of CSI-RS resources included in the second configuration information, and Information indicating at least one reference cell resource included in the first configuration information, and Identifying a QCL relationship between at least one CSI-RS resource and at least one reference cell resource among the set of CSI-RS resources based on the received MAC CEs, Wherein the QCL information is associated with receive Rx, beam related spatial parameters.
8. 8. The method of claim 7, wherein the at least one reference element resource is a CSI-RS resource or a synchronization signal SS block.
9. 9. The method of claim 7, wherein the second configuration information further comprises: information about resource elements RE, mapping patterns, Information about the number of antenna ports, Information about power control, and Information about periodicity and offset.
10. 10. A method performed by a base station, BS, in a wireless communication system, the method comprising: Transmitting, via radio resource control, RRC, signaling, to the user equipment, UE, first configuration information of at least one reference cell resource associated with the quasi co-located, QCL, information, and second configuration information comprising a set of channel state information, CSI-RS, resources; transmitting a medium access control, MAC, control element, CE, to a UE, comprising: information indicating a set of CSI-RS resources included in the second configuration information, and Information indicating at least one reference cell resource included in the first configuration information, and Wherein the MAC CE is configured to indicate a QCL relationship between at least one CSI-RS resource and at least one reference cell resource among the set of CSI-RS resources, Wherein the QCL information is associated with receive Rx, beam related spatial parameters.
11. 11. The method of claim 10, wherein the at least one reference unit resource is a CSI reference signal, RS, resource or a synchronization signal, SS, block.
12. 12. The method of claim 10, wherein the second configuration information further comprises: information about resource elements RE, mapping patterns, Information about the number of antenna ports, Information about power control, and Information about periodicity and offset.

Description

Method and apparatus for indication of reference signals in a wireless system The present application is a divisional application of the invention patent application of which the application date is 2018, 3 and 21, the application number is 201880033726.1, and the invention name is a method and a device for indicating reference signals in a wireless system. Technical Field The present disclosure relates generally to reference signals in wireless communication systems, and more particularly, to a method of indicating reference signals in advanced wireless communication systems. Background In order to meet the increasing demand for wireless data services since the deployment of the 4 th generation (4G) communication systems, efforts have been made to develop improved 5 th generation (5G) or pre-5G communication systems. Therefore, the 5G or pre-5G communication system is also referred to as a "super 4G network" or a "Long Term Evolution (LTE) after-system". The 5G communication system is considered to be implemented in a frequency band of a higher frequency (mmWave) (e.g., a 60GHz band) in order to achieve a higher data rate. In order to reduce propagation loss of radio waves and increase transmission distances, techniques of beamforming, massive multiple-input multiple-output (MIMO), full-size MIMO (FD-MIMO), array antennas, analog beamforming, and massive antennas are discussed in 5G communication systems. Further, in the 5G communication system, development of system network improvement is underway based on advanced small cells, cloud radio access networks (radio access network, RAN), ultra dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, coordinated multipoint (coordinated multi-points, coMP), and receiver interference cancellation, and the like. In 5G systems, hybrid frequency shift keying (frequency SHIFT KEYING, FSK) and quadrature amplitude modulation (quadrature amplitude modulation, FQAM) as advanced code modulation (advanced coding modulation, ACM) and sliding window superposition coding (sliding window superposition coding, SWSC) have been developed, and filter bank multicarrier (filter bank multicarrier, FBMC), non-orthogonal multiple access (non-orthogonal multiple access, NOMA) and sparse code multiple access (sparse code multiple access, SCMA) as advanced access techniques. Disclosure of Invention Technical problem Embodiments of the present disclosure provide for indication of reference signals in a wireless communication system. Technical proposal In one embodiment, a User Equipment (UE) in a wireless communication system is provided. The UE includes a transceiver configured to receive Media Access Control (MAC) Control Element (CE) signaling from a Base Station (BS), the signaling including a quasi co-location (QCL) indication between a first resource and a second resource and activation of the second resource, wherein the UE is configured with the second resource for CSI reporting. The UE also includes a processor operatively connected to the transceiver, the processor configured to identify, from the MAC-CE signaling, activation of the second resource and a QCL relationship between the first resource and the second resource based on the QCL indication. In another embodiment, a Base Station (BS) in a wireless communication system is provided. The BS includes a processor configured to generate Medium Access Control (MAC) Control Element (CE) signaling including a quasi co-location (QCL) indication between a first resource and a second resource and an activation of the second resource. The BS also includes a transceiver operatively connected to the processor, the transceiver configured to transmit MAC-CE signaling to a User Equipment (UE) indicating activation of the second resource and a QCL relationship between the first resource and the second resource. In yet another embodiment, a method for operating a UE or BS is provided. In yet another embodiment, a user equipment, UE, in a wireless communication system is provided, the UE comprising a transceiver and at least one processor coupled to the transceiver and configured to receive, via radio resource control, RRC, signaling from a base station, BS, a configuration of a first set of reference cell resources associated with quasi-co-located, QCL, information and a configuration of a second set of channel state information, CSI-RS, resources associated with channel state information, CSI-reporting, receive, from the BS, a media access control, MAC, control element, CE, comprising information indicating one or more of the CSI-RS resources in the second set and information indicating one or more of the reference cell resources in the first set, and identify, based on the received MAC CE, activation of the one or more CSI-RS resources and a QCL relationship between the CSI-RS resources of the one or more CSI-RS resources and the reference cell resources of the one or more refer