US-12627360-B2 - Method and system for applying a unified transmission configuration indicator (TCI) state to a target signal

US12627360B2US 12627360 B2US12627360 B2US 12627360B2US-12627360-B2

Abstract

Example implementations include a wireless communication method of receiving, by a wireless communication device from a network, first signaling, wherein the first signaling activates one or more beam state codepoints, each of the one or more beam state codepoints comprises one or more beam states, determining, by the wireless communication device, at least one beam state according to the one or more beam state codepoints, and applying, by the wireless communication device, the at least one beam state to a target transmission.

Inventors

Ke Yao
Shujuan Zhang
Bo Gao
Chuangxin JIANG
Zhaohua Lu
Wenjun YAN

Assignees

ZTE CORPORATION

Dates

Publication Date: 20260512
Application Date: 20230830

Claims (13)

1 . A wireless communication method, comprising: receiving, by a wireless communication device from a network, first signaling, wherein the first signaling activates one or more beam state codepoints, each of the one or more beam state codepoints comprises one or more beam states; determining, by the wireless communication device, at least one beam state according to the one or more beam state codepoints; applying, by the wireless communication device, the at least one beam state to a target transmission, wherein the first signaling comprises a medium access control (MAC) control element (CE), and wherein each beam state of the one or more beam states or of the at least one beam state comprises a transmission configuration indicator (TCI) state; wherein the target transmission comprises an RS transmission; applying, by the wireless communication device, a beam state set to at least one Reference Signal (RS) resource or at least one RS resource set, wherein the beam state set comprises the at least one beam state or the one or more beam states indicated by the one or more beam state codepoints; wherein a RS resource in the at least one RS resource comprises a Channel State Information Reference Signal (CSI-RS) resource or Sounding Reference Signal (SRS) resource; or a RS resource set in the at least one RS resource set comprise a CSI-RS resource set or a SRS resource set; wherein each beam state in the beam state set is associated with or corresponds to one RS resource or RS resource set; and wherein each beam state in the beam state set is applied to a corresponding RS resource, a corresponding RS resource set, or all RS resources in the corresponding RS resource set; wherein an association between a beam state in the beam state set and a RS resource or a RS resource set is determined according to an information configured in the RS resource or the RS resource set, and the information indicates that a specific beam state with beam state index in the beam state set is applied to the associated RS resource or the associated RS resource set.
2 . The method of claim 1 , wherein one of: the at least one beam state comprises a downlink beam state, the target transmission comprises a downlink transmission, and the downlink beam state is applied to the downlink transmission; the at least one beam state comprises an uplink beam state, the target transmission comprises an uplink transmission, and the uplink-only beam state is applied to the uplink transmission; or the at least one beam state comprises a downlink and uplink beam state, the target transmission comprises a downlink transmission and an uplink transmission, and the downlink and uplink beam state is applied to the downlink transmission and the uplink transmission.
3 . The method of claim 1 , wherein determining the at least one beam state according to the one or more beam state codepoints comprises at least one of: determining the at least one beam state according to one beam state codepoint activated by the first signaling, wherein a number of the one or more beam state codepoints is 1, or determining the at least one beam state according to at least one beam state codepoint indicated by second signaling.
4 . The method of claim 1 , wherein: a RS resource is configured with an index of an activated TCI state in the MAC CE.
5 . The method of claim 1 , wherein: an association between a beam state in the beam state set and a RS resource set is determined according to at least one of: an order of the beam states in the beam state set; an index of each of the RS resource sets; a usage of the RS resource set; an order of the RS resource set identifier (ID) among one or more RS resource set with certain usage; or information associating the RS resource set with the beam state set.
6 . The method of claim 1 , wherein an association between a beam state in the beam state set and a RS resource is determined according to at least one of: an order of the beam states in the beam state set; an index of each of the RS resource; an index of the RS resource set to which the RS resource belongs; a usage of the RS resource set to which the RS resource belong; or information associating the RS resource or the RS resource set to which the RS resource belongs with the beam state set.
7 . The method of claim 5 , wherein: the usage of the RS resource set is at least one of Channel State Information (CSI) acquisition, tracking, codebook, non-codebook, or antenna switching.
8 . The method of claim 5 , wherein communicating, by the wireless communication device, N RS resources from the MRS resources or N RS resource sets from the MRS resource sets, wherein each of the N RS resources or N RS resource sets corresponding to each of the beam state in the beam state set, wherein M or Nis integer.
9 . The method of claim 8 , wherein Nis determined according to a number of beam states in the beam state set, and wherein the N RS resource sets are determined according to the first NRS resource sets from M RS resource sets.
10 . The method of claim 1 , further comprising: receiving, by the wireless communication device, RS request information, corresponding to X RS resource sets; communicating, by the wireless communication device, the target transmission according to at least one of the RS request information or the beam state set.
11 . A wireless communication method, comprising: sending, by a network to a wireless communication device, first signaling, wherein the first signaling activates at least one beam state codepoint, each of the at least one beam state codepoint comprises one or more beam states, the at least one beam state codepoint corresponds to at least one beam state according to the at least one beam state codepoint; communicating, by the network with the wireless communication device, a target transmission based on the at least one beam state, wherein the first signaling comprises a medium access control (MAC) control element (CE), and wherein each beam state of the one or more beam states or of the at least one beam state comprises a transmission configuration indicator (TCI) state; wherein the target transmission comprises an RS transmission; wherein the wireless communication device applies a beam state set to at least one Reference Signal (RS) resource or at least one RS resource set, wherein the beam state set comprises the at least one beam state or the one or more beam states indicated by the one or more beam state codepoints; wherein a RS resource in the at least one RS resource comprises a Channel State Information Reference Signal (CSI-RS) resource or Sounding Reference Signal (SRS) resource; or a RS resource set in the at least one RS resource set comprise a CSI-RS resource set or a SRS resource set; wherein each beam state in the beam state set is associated with or corresponds to one RS resource or RS resource set; and wherein each beam state in the beam state set is applied to a corresponding RS resource, a corresponding RS resource set, or all RS resources in the corresponding RS resource set; wherein an association between a beam state in the beam state set and a RS resource or a RS resource set is determined according to an information configured in the RS resource or the RS resource set, and the information indicates that a specific beam state with beam state index in the beam state set is applied to the associated RS resource or the associated RS resource set.
12 . A wireless communication device, comprising: at least one processor configured to: receive, via a receiver from a network, first signaling, wherein the first signaling activates one or more beam state codepoints, each of the one or more beam state codepoints comprises one or more beam states; determine at least one beam state according to the one or more beam state codepoints; and apply the at least one beam state to a target transmission, wherein the first signaling comprises a medium access control (MAC) control element (CE), and wherein each beam state of the one or more beam states or of the at least one beam state comprises a transmission configuration indicator (TCI) state, wherein the target transmission comprises an RS transmission; apply a beam state set to at least one Reference Signal (RS) resource or at least one RS resource set, wherein the beam state set comprises the at least one beam state or the one or more beam states indicated by the one or more beam state codepoints; wherein a RS resource in the at least one RS resource comprises a Channel State Information Reference Signal (CSI-RS) resource or Sounding Reference Signal (SRS) resource; or a RS resource set in the at least one RS resource set comprise a CSI-RS resource set or a SRS resource set; wherein each beam state in the beam state set is associated with or corresponds to one RS resource or RS resource set; and wherein each beam state in the beam state set is applied to a corresponding RS resource, a corresponding RS resource set, or all RS resources in the corresponding RS resource set; wherein an association between a beam state in the beam state set and a RS resource or a RS resource set is determined according to an information configured in the RS resource or the RS resource set, and the information indicates that a specific beam state with beam state index in the beam state set is applied to the associated RS resource or the associated RS resource set.
13 . A network node, comprising: at least one processor configured to: send, via a transmitter to a wireless communication device, first signaling, wherein the first signaling activates at least one beam state codepoint, each of the at least one beam state codepoint comprises one or more beam states, the at least one beam state codepoint corresponds to at least one beam state according to the at least one beam state codepoint; and communicate, via the transmitter with the wireless communication device, a target transmission based on the at least one beam state, wherein the first signaling comprises a medium access control (MAC) control element (CE), and wherein each beam state of the one or more beam states or of the at least one beam state comprises a transmission configuration indicator (TCI) state, wherein the target transmission comprises an RS transmission; wherein the wireless communication device applies a beam state set to at least one Reference Signal (RS) resource or at least one RS resource set, wherein the beam state set comprises the at least one beam state or the one or more beam states indicated by the one or more beam state codepoints; wherein a RS resource in the at least one RS resource comprises a Channel State Information Reference Signal (CSI-RS) resource or Sounding Reference Signal (SRS) resource; or a RS resource set in the at least one RS resource set comprise a CSI-RS resource set or a SRS resource set; wherein each beam state in the beam state set is associated with or corresponds to one RS resource or RS resource set; and wherein each beam state in the beam state set is applied to a corresponding RS resource, a corresponding RS resource set, or all RS resources in the corresponding RS resource set; wherein an association between a beam state in the beam state set and a RS resource or a RS resource set is determined according to an information configured in the RS resource or the RS resource set, and the information indicates that a specific beam state with beam state index in the beam state set is applied to the associated RS resource or the associated RS resource set.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the benefit of priority under 35 U.S.C. § 120 as a continuation of International Patent Application No. PCT/CN2021/085367, filed on Apr. 2, 2021, the disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present implementations relate generally to wireless communications, and more particularly to applying a unified transmission configuration indicator to a target signal. BACKGROUND One of the key features of the new radio (NR) technology of fifth generation (5G) mobile communication systems is the support of high frequency bands. High frequency bands have abundant frequency domain resources, but wireless signals in high frequency bands decay quickly and coverage of the wireless signals becomes small. Thus, a flexible beam update mechanism is desired. SUMMARY The example arrangements disclosed herein are directed to solving the issues relating to one or more of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings. In accordance with various arrangements, example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these arrangements are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed arrangements can be made while remaining within the scope of this disclosure. Transmitting signals in a beam mode can concentrate energy in a relatively small spatial range and improve coverage of wireless signals in high frequency bands. In the beam scenario, as the time and position change, a beam pair between a base station (BS) and a user equipment (UE) may also change. Example implementations include a wireless communication method of receiving, by a wireless communication device from a network, first signaling, wherein the first signaling activates one or more beam state codepoints, each of the one or more beam state codepoints comprises one or more beam states, determining, by the wireless communication device, at least one beam state according to the one or more beam state codepoints, and applying, by the wireless communication device, the at least one beam state to a target transmission. It is to be understood that codepoints can correspond to one or more beam states. Example implementations also include a method where the first signaling comprises a Medium Access Control (MAC) Control Element (CE). Example implementations also include a method where one of: the at least one beam state comprises a downlink (also called downlink-only) beam state, the target transmission comprises a downlink transmission, the downlink-only beam state is applied to the downlink transmission, the at least one beam state comprises an uplink (also called uplink-only) beam state, the target transmission comprises an uplink transmission, the uplink-only beam state is applied to the uplink transmission, or the at least one beam state comprises a downlink and uplink beam state, the target transmission comprises a downlink transmission and an uplink transmission, the downlink and uplink beam state is applied to the downlink transmission and the uplink transmission. Example implementations also include a method where determining the at least one beam state according to the one or more beam state codepoints comprises at least one of: determining the at least one beam state according to one beam state codepoint activated by the first signaling, wherein number of the one or more beam state codepoints is 1, or, determining the at least one beam state according to at least one beam state codepoint indicated by second signaling. Example implementations also include a method where each beam state of the one or more beam states or of the at least one beam state comprises at least one of: a Quasi Co-Location (QCL) information, a Transmission Configuration Indicator (TCI) state, spatial relation information, reference signal information, spatial filter information, or precoding information. Example implementations also include a method where each beam state in the beam state set is associated with or corresponds to one RS resource or RS resource set and each beam state in the beam state set is applied to a corresponding RS resource, a corresponding RS resource set, or all RS resources in the corresponding RS resource set. Example implementations also include a method where a RS resource in the at least one RS resource comprises Channel State Information Reference Signal (CSI-RS) resource or Sounding Reference Signal (SRS) resource, or a RS resource set in the at least one RS resource set comprise CSI-RS resource set or SRS resource set. Example implementations also include a method including receivin