US-12628232-B2 - Methods and systems for beam management in wireless networks

US12628232B2US 12628232 B2US12628232 B2US 12628232B2US-12628232-B2

Abstract

Methods and systems for techniques for beam management in wireless networks are disclosed. In one example aspect, the method includes receiving, by a wireless device, a configuration from a network device, and initiating, by the wireless device, a process to recover a link to a network based on information elements within the configuration associated with different criteria.

Inventors

Nan Zhang
Wei Cao
Jianwu Dou
Jianqiang DAI

Assignees

ZTE CORPORATION

Dates

Publication Date: 20260512
Application Date: 20230921

Claims (13)

1 . A method of wireless communication, comprising: receiving, by a wireless device, from a network device, a plurality of configurations including: one or more first parameters including a threshold value for comparison with a channel measurement value; and one or more second parameters for determining a reference signal among a plurality of candidate reference signals included in a reference signal list; and initiating, by the wireless device, a process to recover a link to a network based on information elements within one or more configurations selected from the plurality of configurations, wherein the one or more configurations are selected based on criteria including at least one of: a height of the wireless device; an elevation angle between the wireless device and the network device; a distance between the wireless device and the network device; or a service region where the wireless device is in.
2 . The method of claim 1 , wherein the wireless device receives the plurality of configurations via at least one of a radio resource control (RRC), a system information block (SIB), or a medium access control (MAC) control element (MAC CE).
3 . A method of wireless communication, comprising: receiving, by a wireless device, from a network device, a first signaling that carries a plurality of configurations for channel sounding; and performing by the wireless device a channel sounding operation based on one or more configurations selected from the plurality of configurations, wherein the one or more configurations are grouped into one or more groups of configurations indicated by a second signaling, and wherein the one or more configurations are selected based on criteria including at least one of: a height of the wireless device; an elevation angle between the wireless device and the network device; a distance between the wireless device and the network device; or a service region where the wireless device is in.
4 . The method of claim 3 , wherein each of the plurality of configurations includes a reference signal list including one or more sets of reference signals for a channel state information measurement.
5 . The method of claim 3 , wherein each of the plurality of configurations includes information related to a channel state information reporting.
6 . The method of claim 3 , wherein each group is associated with corresponding criteria, and wherein, upon satisfaction of the corresponding criteria, one reference signal within one configuration or one group of configurations corresponding to the corresponding criteria is applied.
7 . The method of claim 3 , wherein the first signaling and second signaling include at least one of a radio resource control (RRC) or a medium access control (MAC) control element (MAC CE).
8 . The method of claim 3 , wherein the channel sounding is triggered by the wireless device by transmitting, to the network device, a trigger message via at least one of a scheduling request (SR), a buffer status report, a physical random access channel (PRACH) resource, a power headroom report (PHR), or a MAC CE signaling.
9 . A method of wireless communication, comprising: receiving, by a wireless device, from a network device, a first signaling that carries a configuration including a first number of sets of transmission configuration indicator (TCI) states, wherein the first number is greater than or equal to one; receiving, a second signaling that indicates a second number of sets of TCI states based on the configuration carried via the first signaling; and receiving, a third signaling that indicates a set of a pair of TCI states, wherein each TCI in the pair of TCI states indicated by a TCI bit field in a downlink control indicator (DCI) is applied by the wireless device upon satisfaction of criteria for each TCI within the pair of TCI states.
10 . The method of claim 9 , wherein each set of TCI states is configured as a list or within a list of TCI states.
11 . The method of claim 10 , wherein each TCI state within a TCI set is associated with a TCI bit field in a downlink control indicator (DCI) upon satisfaction of criteria for each set of TCI states.
12 . The method of claim 11 , wherein the criteria include at least one of: a height of the wireless device; an elevation angle of between the wireless device and the network device; a distance between the wireless device and the network device; a service region where the wireless device is in; a duration or window of time; or information associated with the wireless device.
13 . The method of claim 9 , wherein the wireless device is configured to receive or transmit a channel or a reference signal in a frequency resource corresponding to a reference signal included in an indication for quasi co location (QCL) information.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is a continuation and claims priority to International Application No. PCT/2021/084855, filed on Apr. 1, 2021, the disclosure of which is hereby incorporated by reference herein in its entirety. TECHNICAL FIELD This patent document is directed generally to wireless communications. BACKGROUND Mobile communication technologies are moving the world toward an increasingly connected and networked society. The rapid growth of mobile communications and advances in technology have led to greater demand for capacity and connectivity. Other aspects, such as energy consumption, device cost, spectral efficiency, and latency are also important to meeting the needs of various communication scenarios. Various techniques, including new ways to provide higher quality of service, longer battery life, and improved performance are being discussed. SUMMARY This patent document describes, among other things, techniques for beam management in wireless networks. In one aspect, a method of data communication is disclosed. The method includes receiving, by a wireless device, a configuration from a network device, and initiating, by the wireless device, a process to recover a link to a network based on information elements within the configuration associated with different criteria. In another aspect, a method of data communication is disclosed. The method includes receiving, by a wireless device, from a network device, a first signaling that carries one or more configurations for channel sounding, and performing by the wireless device a channel sounding operation based on the one or more configurations. In another aspect, a method of data communication is disclosed. The method includes receiving, by a wireless device, from a network device, a first signaling that carries a configuration including a first number of sets of transmission configuration indicator (TCI) states, wherein the first number is greater than or equal to one. In another example aspect, a wireless communication apparatus comprising a processor configured to implement an above-described method is disclosed. In another example aspect, a computer storage medium having code for implementing an above-described method stored thereon is disclosed. These, and other, aspects are described in the present document. BRIEF DESCRIPTION OF THE DRAWING FIG. 1 shows a wireless communication system based on some example embodiments of the disclosed technology. FIG. 2 shows a block diagram of a portion of a radio system based on some example embodiments of the disclosed technology. FIG. 3 shows an example where multiple criteria are configured to map configurations to different cases. FIG. 4 shows an example where configurations within a list are selected into different groups associated with corresponding criteria. FIG. 5 shows an example of a signaling exchange between a network device (e.g., BS) and a wireless device (e.g., US) following a transmission of reference signals for measurement. FIG. 6 shows an example of a process for initializing a beam management operation by a wireless device. FIG. 7 shows examples of signaling exchanges following a triggering mechanism by a wireless device. FIG. 8 shows examples operations between a network device (e.g., BS) and a wireless device (e.g., US) following a triggering mechanism by the wireless device. FIG. 9 shows an example of selecting more than one TCI status group each of which is associated with corresponding criteria where a list of TCI states is configured. FIG. 10 shows an example timing diagram where multiple groups are selected. FIG. 11 shows an example of a process for wireless communication based on some example embodiments of the disclosed technology. FIG. 12 shows another example of a process for wireless communication based on some example embodiments of the disclosed technology. FIG. 13 shows another example of a process for wireless communication based on some example embodiments of the disclosed technology. DETAILED DESCRIPTION Section headings are used in the present document only for ease of understanding and do not limit scope of the embodiments to the section in which they are described. Furthermore, while embodiments are described with reference to 5G examples, the disclosed techniques may be applied to wireless systems that use protocols other than 5G or 3GPP protocols. In the current system design, a lot of behaviors are dominated/controlled by a network device such as a base station (BS) to conduct the corresponding scheduling/measurement. However, comparing to the legacy application scenarios, e.g., urban/dense urban, in the emerging scenario, e.g., high speed train (HST), v2x, drone, satellite, ATG, the channel condition is more challenging due to the high mobility, rendering the legacy solutions inefficient to handle the issues. For example, in the case of communication with v2x/ATG/drone, the user equipment (UE) can support multiple beams at either a