US-12627437-B2 - Antenna panel switching in uplink transmissions

Abstract

An uplink grant may be configured for wireless communications between a wireless device and a base station. Sounding reference signal (SRS) resource sets may be associated with one or more respective antenna panels, of a plurality of antenna panels, of the wireless device. One of a plurality of SRS resource indicators (SRI) associated with the configured uplink grant may indicate an SRS resource of an SRS resource set for transmitting a transport block. Based on deactivation of an antenna panel associated with the SRS resource set, a second transport block may be transmitted based on a second SRI of the plurality of SRIs, thus ensuring continuous uplink transmission associated with the configured uplink grant without having to indicate via configuration parameters a new SRI field associated with the configured uplink grant.

Inventors

• Ali Cagatay Cirik
• Hua Zhou
• Esmael Hejazi Dinan
• Yunjung Yi

Assignees

• COMCAST CABLE COMMUNICATIONS, LLC

Dates

Publication Date

20260512

Application Date

20220729

Claims (20)

1. 1 . A method comprising: receiving, by a wireless device comprising a plurality of antenna panels, one or more configuration parameters indicating: a first sounding reference signal (SRS) resource set associated with one or more first antenna panels of the plurality of antenna panels; a second SRS resource set associated with one or more second antenna panels of the plurality of antenna panels; and two or more SRS resource indicator (SRI) fields associated with a configured uplink grant; based on a first SRI field, of the two or more SRI fields, indicating a first SRS resource in the first SRS resource set, transmitting a first transport block associated with the configured uplink grant; deactivating the one or more first antenna panels associated with the first SRS resource set; and based on a second SRI field, of the two or more SRI fields, indicating a second SRS resource in the second SRS resource set, transmitting a second transport block associated with the configured uplink grant.
2. 2 . The method of claim 1 , wherein the transmitting the second transport block is after the deactivating of the one or more first antenna panels.
3. 3 . The method of claim 1 , wherein the transmitting the first transport block comprises using a first antenna panel of the one or more first antenna panels.
4. 4 . The method of claim 1 , wherein the transmitting the second transport block comprises using a second antenna panel of the one or more second antenna panels.
5. 5 . The method of claim 1 , wherein: the transmitting the first transport block comprises using a first spatial domain transmission filter associated with a spatial relation activated for the first SRS resource; and the transmitting the second transport block comprises using a second spatial domain transmission filter associated with a spatial relation activated for the second SRS resource.
6. 6 . The method of claim 1 , wherein the one or more configuration parameters indicate: a first quantity of SRS antenna ports for one or more first SRS resources in the first SRS resource set; and a second quantity of SRS antenna ports for one or more second SRS resources in the second SRS resource set.
7. 7 . The method of claim 6 , wherein the first quantity of SRS antenna ports and the second quantity of SRS antenna ports are different.
8. 8 . The method of claim 1 , wherein the one or more configuration parameters indicate a first transmit precoding field and a second transmit precoding field associated with the configured uplink grant.
9. 9 . The method of claim 8 , wherein: the transmitting the first transport block comprises using a first transmission precoder; and the transmitting the second transport block comprises using a second transmission precoder.
10. 10 . The method of claim 9 , further comprising: determining, based on the first transmit precoding field, the first transmission precoder; and determining, based on the second transmit precoding field, the second transmission precoder.
11. 11 . A method comprising: receiving, by a wireless device comprising a plurality of antenna panels, one or more configuration parameters indicating: a first sounding reference signal (SRS) resource set associated with one or more first antenna panels of the plurality of antenna panels; a second SRS resource set associated with one or more second antenna panels of the plurality of antenna panels; and a SRS resource indicator (SRI) field associated with a configured uplink grant; and transmitting a first transport block associated with the configured uplink grant using an SRS resource, indicated by the SRI field, in an SRS resource set among the first SRS resource set and the second SRS resource set, wherein the SRS resource set is: the second SRS resource set if the one or more first antenna panels associated with the first SRS resource set are deactivated; and the first SRS resource set if the one or more second antenna panels associated with the second SRS resource set are deactivated.
12. 12 . The method of claim 11 , wherein the transmitting the first transport block comprises using a first antenna panel of the one or more first antenna panels.
13. 13 . The method of claim 11 , wherein: the transmitting the first transport block comprises using a first spatial domain transmission filter associated with a spatial relation activated for the SRS resource.
14. 14 . A method comprising: receiving, by a wireless device comprising a plurality of antenna panels, one or more configuration parameters indicating: two or more sounding reference signal (SRS) resource sets, wherein each SRS resource set, of the two or more SRS resource sets, is associated with one or more respective antenna panels of the plurality of antenna panels; and an SRS resource set field, associated with a configured uplink grant, comprising a value indicating an SRS resource set of the two or more SRS resource sets; transmitting, based on an SRS resource in the SRS resource set, one or more transport blocks associated with the configured uplink grant; deactivating one or more antenna panels, of the plurality of antenna panels, associated with the SRS resource set; and based on the deactivating the one or more antenna panels, stopping transmission of transport blocks associated with the configured uplink grant.
15. 15 . The method of claim 14 , wherein the transmitting the one or more transport blocks comprises using an antenna panel of the one or more antenna panels.
16. 16 . The method of claim 14 , wherein the stopping transmission of transport blocks further comprises suspending transmission of transport blocks.
17. 17 . The method of claim 16 , wherein the transmission of transport blocks are suspended until activation of at least one antenna panel of the one or more antenna panels.
18. 18 . The method of claim 14 , wherein: the transmitting the one or more transport blocks comprises using a spatial domain transmission filter associated with a spatial relation activated for the SRS resource.
19. 19 . The method of claim 14 , wherein the one or more configuration parameters indicate: a quantity of SRS antenna ports for the SRS resource in the SRS resource set.
20. 20 . The method of claim 14 , wherein the one or more configuration parameters indicate at least a first transmit precoding field associated with the configured uplink grant.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of U.S. Provisional Application No. 63/227,421, filed on Jul. 30, 2021. The above-referenced application is hereby incorporated by reference in its entirety. BACKGROUND A wireless device may be equipped with one or more antennas for communicating with a base station. The wireless device may be configured, by the base station, with an uplink grant. SUMMARY The following summary presents a simplified summary of certain features. The summary is not an extensive overview and is not intended to identify key or critical elements. A wireless device may communicate with a base station using various resources. An sounding reference signal (SRS) resource indicator (SRI) field, for (and/or of and/or associated with and/or based on) a configured uplink grant, may indicate an SRS resource used to determine a beam for sending a transport block. After switching from a first antenna panel to a second antenna panel (e.g., deactivating the first antenna panel), however, the SRI field of the configured uplink grant may no longer be valid. This may result in failure to transmit the transport block and reduce the reliability of communication between the base station and wireless device. The wireless device and/or a base station may reduce a likelihood of such unreliability by stopping or suspending uplink transmission for (and/or associated with and/or based on) a configured uplink grant when antenna panel(s) associated with the configured uplink grant is deactivated. Multiple SRI fields may be configured for a configured uplink grant that are used for uplink transmission based on the activation status of the antenna panels, which may provide advantages such as increased flexibility and/or reliability for wireless communications. A wireless device may receive information (e.g., downlink control information (DCI)) for scheduling transmission of an uplink signal. The DCI may comprise an SRS resource indicator (SRI) field indicating an SRS resource, and an uplink signal may be transmitted using a spatial domain transmission filter and/or a beam based on the SRS resource. The wireless device may not determine whether the SRI field indicates an SRS resource in a first SRS resource set or a second SRS resource set. This may lead to misaligned communication between the base station and the wireless device and result in the unsuccessful receipt of the uplink signal, thereby increasing error rate, latency, and/or power consumption. The wireless device and/or a base station may reduce a likelihood of such unreliability, for example, by configuring a new DCI field indicating whether the SRI field indicates a particular SRS resource set among a plurality of SRS resource sets. These enhanced uplink transmission procedures may reduce misalignment between the base station and the wireless device, which may provide advantages such as increased flexibility and/or reliability for wireless communications. In at least some uplink transmission procedures, a size/length of the SRI field is determined based on a quantity of SRS resources in an SRS resource set. Multiple SRS resource sets may be configured, where an SRS resource set is associated with a subset of antenna panels at a wireless device. This may result in the determination of the size and/or length of an SRI field based on different SRS resource sets, which may reduce the reliability of communication between the base station and wireless device, thereby leading to increased retransmissions, increased power consumption, and/or decreased performance of the wireless communication system. The wireless device and/or a base station may reduce a likelihood of such unreliability by determining the size and/or length of the SRI field, for example, based on a quantity/number of SRS resources in an SRS resource set. These enhanced uplink transmission procedures may result in reduced retransmissions, reduced latency/delay, reduced power consumption, and/or increased performance of the whole communication system. These and other features and advantages are described in greater detail below. BRIEF DESCRIPTION OF THE DRAWINGS Some features are shown by way of example, and not by limitation, in the accompanying drawings. In the drawings, like numerals reference similar elements. FIG. 1A and FIG. 1B show example communication networks. FIG. 2A shows an example user plane. FIG. 2B shows an example control plane configuration. FIG. 3 shows example of protocol layers. FIG. 4A shows an example downlink data flow for a user plane configuration. FIG. 4B shows an example format of a Medium Access Control (MAC) subheader in a MAC Protocol Data Unit (PDU). FIG. 5A shows an example mapping for downlink channels. FIG. 5B shows an example mapping for uplink channels. FIG. 6 shows example radio resource control (RRC) states and RRC state transitions. FIG. 7 shows an example configuration of a frame. FIG. 8 shows an example resource configurati