Techniques for single DCI switching of downlink and uplink bandwidth portions and subbands

Abstract

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be configured to receive control signaling from a network node indicating a first downlink bandwidth portion (BWP) and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing subband full duplex (SBFD) communications. The UE may receive a downlink control information (DCI) message from the network node, the downlink control information (DCI) message indicating a handover to a second downlink BWP and a second uplink BWP, or a handover to a second downlink subband and a second uplink subband, or both. The UE may then perform full duplex communication with the network node within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

Description

Technical Field

[0001] This patent application claims priority to U.S. patent application No. 17 / 958,190, filed by ZHANG et al. on September 30, 2022, entitled “TECHNIQUES FOR SINGLE-DCI SWITCHING FOR DOWNLINK AND UPLINK BANDWIDTH PARTS AND SUB-BANDS,” and U.S. provisional patent application No. 63 / 409,605, filed by ZHANG et al. on September 23, 2022, entitled “TECHNIQUES FOR SINGLE-DCI SWITCHING FOR DOWNLINK AND UPLINK BANDWIDTH PARTS AND SUB-BANDS,” each of which is assigned to the assignee of the present application, and each of which is expressly incorporated herein by reference. Technical Field

[0003] The present disclosure relates to wireless communications, including techniques for single downlink control information (DCI) switching of downlink and uplink bandwidth parts (BWPs) and subbands. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each of which supports wireless communications for communication devices, which may be referred to as user equipment (UE).

[0005] In some wireless communication systems, a wireless device may be able to transmit and receive signals simultaneously, which may be referred to as "full-duplex" communication. For example, in the context of sub-band full-duplex (SBFD) communication, a UE may be able to transmit uplink signals within an uplink sub-band or uplink bandwidth part (BWP) and simultaneously receive downlink signals within a downlink sub-band or downlink BWP. Summary of the invention

[0006] The described technology relates to an improved method, system, device and apparatus for supporting a single downlink control information (DCI) switching technology for downlink and uplink bandwidth parts (BWP) and subbands. In general, aspects of the present disclosure relate to a technology for switching both downlink and uplink subbands and / or BWPs using a single DCI message. In other words, aspects of the present disclosure may support a DCI format that can indicate or switch both downlink and uplink BWP / subbands. In particular, a single DCI message may be used to dynamically switch or indicate a downlink subband / BWP and an uplink subband / BWP for subband full-duplex (SBFD) communication. For example, a UE may be configured to perform SBFD communication within a first downlink subband (or a first downlink BWP) and a first uplink subband (or a first uplink BWP). Subsequently, the UE may receive a single DCI message that switches both a downlink subband (or a downlink BWP) and an uplink subband (or an uplink BWP). In such cases, the UE may then communicate within the new downlink and uplink subbands / BWPs based on the indications in the DCI messages.

[0007] A method is described. The method may include: receiving control signaling from a network entity indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication; receiving a DCI message from the network entity indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both; and performing full-duplex communication with the network entity within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0008] An apparatus is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive control signaling from a network entity, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication; receive a DCI message from the network entity, the DCI message indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both; and perform full-duplex communication with the network entity within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0009] Another apparatus is described. The apparatus may include: means for receiving control signaling from a network entity indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication; means for receiving a DCI message from the network entity indicating a switch to a second downlink BWP and a second uplink BWP, or to a second downlink subband and a second uplink subband, or both; and means for performing full-duplex communication with the network entity within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0010] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by a processor to: receive control signaling from a network entity indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication; receive a DCI message from the network entity indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both; and perform full-duplex communication with the network entity within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0011] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: receiving one or more BWP indicator field values ​​indicating the second downlink BWP or the second uplink BWP via the DCI message; and receiving one or more additional bit field values ​​indicating the other of the second downlink BWP or the second uplink BWP via the DCI message, wherein these full-duplex communications can be performed within the second downlink BWP and the second uplink BWP based on the one or more BWP indicator field values ​​and the one or more additional bit field values.

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining that the one or more additional bit field values ​​indicate the other of the second downlink BWP or the second uplink BWP based on the DCI message not scheduling data at a user equipment (UE).

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more additional bit field values ​​include a modulation and coding scheme (MCS) bit field, a time domain resource allocation (TDRA) bit field, or both.

[0014] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining one or more bit field values ​​within the DCI message to indicate the second downlink BWP and the second uplink BWP based on the DCI message not scheduling data at the UE.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving a radio resource control (RRC) message indicating a DCI format from the network entity, the DCI format including one or more reserved bits for switching a downlink BWP, an uplink BWP, or both, wherein the DCI message may be associated with the DCI format.

[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving an RRC message indicating a DCI format from the network entity, the DCI format including one or more reserved bits for switching downlink subbands, uplink subbands, or both, wherein the DCI message may be associated with the DCI format.

[0017] Some examples of the methods, devices, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: receiving a first bit value of the BWP indicator field indicating the second downlink BWP via the DCI message; and receiving a second bit value of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein these full-duplex communications can be performed within the second downlink BWP and the second uplink BWP based on the first bit value and the second bit value of the BWP indicator field.

[0018] Some examples of the methods, devices, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: receiving a first pair of bit values ​​of the BWP indicator field indicating the second downlink BWP via the DCI message; and receiving a second pair of bit values ​​of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein these full-duplex communications can be performed within the second downlink BWP and the second uplink BWP based on the first pair of bit values ​​and the second pair of bit values ​​of the BWP indicator field.

[0019] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving, via the DCI message, one or more bit values ​​of a BWP indicator field indicating a downlink and uplink BWP pair or set identifier associated with the second downlink BWP and the second uplink BWP.

[0020] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving an indication of a set of multiple downlink and uplink BWP pairs or set identifiers from the network entity via the control signaling, additional control signaling, or both, wherein each downlink and uplink BWP pair or set identifier may be associated with a corresponding downlink BWP and a corresponding uplink BWP, wherein the set of multiple downlink and uplink BWP pairs or set identifiers includes the downlink and uplink BWP pair or set identifier, and wherein receiving the DCI message may be based on receiving the indication of the set of multiple downlink and uplink BWP pairs or set identifiers.

[0021] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: receiving an RRC message indicating a DCI format from the network node, the DCI format including one or more bits of the BWP indicator field for switching downlink and uplink BWP pair or set identifiers, wherein the DCI message may be associated with the DCI format.

[0022] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: receiving, via the DCI message, a first pair of bit values ​​for the BWP indicator field, the first pair of bit values ​​indicating a first downlink and uplink BWP pair or set identifier associated with the second downlink BWP and the second uplink BWP; and receiving, via the DCI message, a second pair of bit values ​​for the BWP indicator field, the second pair of bit values ​​indicating a second downlink and uplink BWP pair or set identifier associated with half-duplex communication at the UE.

[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the DCI message includes a group common DCI (GC-DCI) message.

[0024] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving, via the DCI message, an indication of corresponding starting and ending resource block indices associated with each of the second downlink subband and the second uplink subband, an indication of corresponding resource block set indices associated with each of the second downlink subband and the second uplink subband, or both.

[0025] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining one or more bit field values ​​received via the DCI message to indicate the second downlink subband and the second uplink subband based on the DCI message not scheduling data at the UE, wherein the one or more bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0026] A method is described. The method may include: sending control signaling to a UE, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication or both; sending a DCI message to the UE, the DCI message indicating switching to a second downlink BWP and a second uplink BWP, or switching to a second downlink subband and a second uplink subband, or both; and performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0027] An apparatus is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: send control signaling to a UE, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication or both; send a DCI message to the UE, the DCI message indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both; and perform full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0028] Another apparatus is described. The apparatus may include: means for sending control signaling to a UE, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication or both; means for sending a DCI message to the UE, the DCI message indicating switching to a second downlink BWP and a second uplink BWP, or switching to a second downlink subband and a second uplink subband, or both; and means for performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0029] A non-transitory computer-readable medium storing code is described. The code may include instructions that can be executed by a processor to: send control signaling to a UE, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication or both; send a DCI message to the UE, the DCI message indicating switching to a second downlink BWP and a second uplink BWP, or switching to a second downlink subband and a second uplink subband, or both; and perform full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0030] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: sending one or more BWP indicator field values ​​indicating the second downlink BWP or the second uplink BWP via the DCI message; and sending one or more additional bit field values ​​indicating the other of the second downlink BWP or the second uplink BWP via the DCI message, wherein these full-duplex communications can be performed within the second downlink BWP and the second uplink BWP based on the one or more BWP indicator field values ​​and the one or more additional bit field values.

[0031] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending one or more additional bit field values ​​via the DCI message, wherein the one or more additional bit field values ​​indicate the other of the second downlink BWP or the second uplink BWP based on the DCI message not scheduling data at the UE.

[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more additional bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0033] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending one or more bit field values ​​via the DCI message, wherein the one or more bit field values ​​indicate the second downlink BWP and the second uplink BWP based on the DCI message not scheduling data at the UE.

[0034] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending an RRC message indicating a DCI format to the UE, the DCI format including one or more bits for switching a downlink BWP, a downlink subband, an uplink BWP, an uplink subband, or any combination thereof, wherein the DCI message may be associated with the DCI format.

[0035] Some examples of the methods, devices, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: sending a first bit value of the BWP indicator field indicating the second downlink BWP via the DCI message; and sending a second bit value of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein these full-duplex communications can be performed within the second downlink BWP and the second uplink BWP based on the first bit value and the second bit value of the BWP indicator field.

[0036] Some examples of the methods, devices, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: sending a first pair of bit values ​​of the BWP indicator field indicating the second downlink BWP via the DCI message; and sending a second pair of bit values ​​of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein these full-duplex communications can be performed within the second downlink BWP and the second uplink BWP based on the first pair of bit values ​​and the second pair of bit values ​​of the BWP indicator field.

[0037] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending one or more bit values ​​of a BWP indicator field via the DCI message, the one or more bit values ​​indicating a downlink and uplink BWP pair or set identifier associated with the second downlink BWP and the second uplink BWP.

[0038] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending an indication of a set of multiple downlink and uplink BWP pairs or set identifiers from the UE via the control signaling, additional control signaling, or both, wherein each downlink and uplink BWP pair or set identifier may be associated with a corresponding downlink BWP and a corresponding uplink BWP, wherein the set of multiple downlink and uplink BWP pairs or set identifiers includes the downlink and uplink BWP pair or set identifier, and wherein sending the DCI message may be based on sending the indication of the set of multiple downlink and uplink BWP pairs or set identifiers.

[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the DCI message includes a GC-DCI message.

[0040] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending, via the DCI message, an indication of corresponding starting and ending resource block indices associated with each of the second downlink subband and the second uplink subband, an indication of corresponding resource block set indices associated with each of the second downlink subband and the second uplink subband, or both.

[0041] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: sending one or more bit field values ​​via the DCI message, wherein the one or more bit field values ​​indicate the second downlink subband and the second uplink subband based on the DCI message not scheduling data at the UE, wherein the one or more bit field values ​​include an MCS bit field, a TDRA bit field, or both. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 An example of a wireless communication system that supports techniques for single downlink control information (DCI) switching for downlink and uplink bandwidth parts (BWPs) and subbands in accordance with one or more aspects of the present disclosure is illustrated.

[0043] Figure 2 An example of a wireless communication system supporting techniques for downlink and uplink BWP and single DCI switching of subbands according to one or more aspects of the present disclosure is illustrated.

[0044] Figure 3An example of a process flow for techniques supporting single DCI switching for downlink and uplink BWP and subbands in accordance with one or more aspects of the present disclosure is illustrated.

[0045] Figure 4 and Figure 5 A block diagram of a device supporting techniques for downlink and uplink BWP and single DCI switching of subbands is shown in accordance with one or more aspects of the present disclosure.

[0046] Figure 6 A block diagram of a communications manager supporting techniques for downlink and uplink BWP and single DCI switching of subbands is shown in accordance with one or more aspects of the present disclosure.

[0047] Figure 7 A diagram of a system including devices supporting techniques for downlink and uplink BWP and single DCI switching of subbands is shown in accordance with one or more aspects of the present disclosure.

[0048] Figure 8 and Fig. 9 A block diagram of a device supporting techniques for downlink and uplink BWP and single DCI switching of subbands is shown in accordance with one or more aspects of the present disclosure.

[0049] Fig.10 A block diagram of a communications manager supporting techniques for downlink and uplink BWP and single DCI switching of subbands is shown in accordance with one or more aspects of the present disclosure.

[0050] Fig.11 A diagram of a system including devices supporting techniques for downlink and uplink BWP and single DCI switching of subbands is shown in accordance with one or more aspects of the present disclosure.

[0051] Fig.12 and Fig.13 A flow chart illustrating a method of supporting techniques for single DCI switching of downlink and uplink BWP and subbands in accordance with one or more aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0052] In some wireless communication systems, a wireless device may be able to send and receive signals simultaneously, which may be referred to as "full-duplex" communication. For example, in the context of sub-band full-duplex (SBFD) communication, a user equipment (UE) may be able to send uplink signals within an uplink subband or uplink bandwidth part (BWP) and simultaneously receive downlink signals within a downlink subband or downlink BWP. In such cases, the network may indicate which downlink subbands / BWPs and which uplink subbands / BWPs the UE desires to use via separate control messages, such as downlink control information (DCI) messages. That is, a first DCI format (e.g., DCI format 1_1 / 1_2) may be used to indicate or switch a downlink subband / BWP, and a second DCI format (e.g., DCI format 0_1 / 0_2) may be used to indicate or switch an uplink subband / BWP. Such a DCI message may include a "BWP indicator (ID)" field for indicating or switching a downlink or uplink BWP.

[0053] However, using separate DCI formats may result in increased signaling overhead and wasted resources. In particular, in order to switch the downlink BWP and uplink BWP (or downlink / uplink subband) to be used by the UE for SBFD communication in the same time slot, the network may be expected to send two separate DCI messages to switch the downlink and uplink BWPs, respectively. This results in increased signaling overhead and may increase the latency at which the UE can perform BWP / subband switching for SBFD communication.

[0054] Therefore, aspects of the present disclosure relate to techniques for switching both downlink subband / BWP and uplink subband / BWP using a single DCI message. In other words, aspects of the present disclosure may support DCI formats that can indicate or switch both downlink and uplink BWP / subbands. In particular, a single DCI message may be used to dynamically switch or indicate downlink subband / BWP and uplink subband / BWP for SBFD communication. For example, a UE may be configured to perform SBFD communication within a first downlink subband (or first downlink BWP) and a first uplink subband (or first uplink BWP). Subsequently, the UE may receive a single DCI message that switches both downlink subband (or downlink BWP) and uplink subband (or uplink BWP). In such cases, the UE may then communicate within a new downlink and uplink subband / BWP based on the indication in the DCI message.

[0055] In some aspects, unused fields within a DCI message, such as a modulation and coding scheme (MCS) or a time domain resource allocation (TDRA) field, may be used in conjunction with the BWP ID field to switch both the downlink subband / BWP and the uplink subband / BWP. In other cases, a DCI message with reserved bits may be used to indicate / switch both the downlink subband / BWP and the uplink subband / BWP. In some aspects, a UE may be configured with associated downlink and uplink BWP pairs (or sets) (e.g., downlink / uplink BWP pairs or set IDs), wherein the BWP ID bit field may be used to switch the downlink / uplink BWP pairs or set IDs, and thus switch both the downlink BWP and the uplink BWP at the UE.

[0056] Various aspects of the present disclosure are first described in the context of a wireless communication system. Additionally, various aspects of the present disclosure are described in the context of example process flows. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to techniques for single DCI switching of downlink and uplink BWPs and subbands.

[0057] Figure 1 An example of a wireless communication system 100 that supports techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more network nodes 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, a new radio (NR) network, or a network operating according to other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.

[0058] The network nodes 105 may be dispersed throughout a geographic area to form a wireless communication system 100, and may include devices in different forms or with different capabilities. In various examples, the network nodes 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other names. In some examples, the network nodes 105 and the UE 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network nodes 105 may support a coverage area 110 (e.g., a geographic coverage area), and the UE 115 and the network nodes 105 may establish one or more communication links 125 over the coverage area. The coverage area 110 may be an example of a geographic area over which the network nodes 105 and the UE 115 may support signal communications according to one or more radio access technologies (RATs).

[0059] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile, or stationary and mobile at different times. The UEs 115 may be devices in different forms or with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1 . The UEs 115 described herein may be capable of supporting communication with various types of devices, such as Figure 1 Communicate with other UE 115 or network node 105) as shown.

[0060] As described herein, a node of the wireless communication system 100 (which may be referred to as a network node or a wireless node) may be a network node 105 (e.g., any network node described herein), a UE 115 (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, the node may be a UE 115. As another example, the node may be a network node 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network node 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network node 105, and the third node may be a network node 105. In other aspects of this example, the first node, the second node, and the third node may be different relative to these examples. Similarly, references to UE 115, network node 105, apparatus, device, computing system, etc. may include disclosure of UE 115, network node 105, apparatus, device, computing system, etc. as nodes. For example, disclosure that UE 115 is configured to receive information from network node 105 also discloses that the first node is configured to receive information from a second node.

[0061] In some examples, the network nodes 105 may communicate with the core network 130, or with each other, or both. For example, the network nodes 105 may communicate with the core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some examples, the network nodes 105 may communicate with each other via the backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols) directly (e.g., directly between the network nodes 105) or indirectly (e.g., via the core network 130). In some examples, the network nodes 105 may communicate with each other via the midhaul communication links 162 (e.g., according to the midhaul interface protocol) or the fronthaul communication links 168 (e.g., according to the fronthaul interface protocol) or any combination thereof. The backhaul communication links 120, the midhaul communication links 162, or the fronthaul communication links 168 may be or include one or more wired links (e.g., electrical links, optical fiber links), one or more wireless links (e.g., radio links, wireless optical links), etc. or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155 .

[0062] One or more of the network nodes 105 described herein may include or may be referred to as a base station 140 (e.g., a transceiver base station, a radio base station, an NR base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a 5G NB, a next generation eNB (ng-eNB), a Home Node B, a Home Evolved Node B, or other suitable terminology). In some examples, the network node 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack physically or logically integrated within a single network node 105 (e.g., a single RAN node, such as a base station 140).

[0063] In some examples, the network node 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that may be configured to utilize a protocol stack that is physically or logically distributed between two or more network nodes 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network node 105 may include one or more of the following: a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of a network node 105 in a disaggregated RAN architecture may be co-located, or one or more components of a network node 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network nodes 105 of a disaggregated RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0064] The functional split between CU 160, DU 165, and RU 170 is flexible and may support different functionalities, depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at CU 160, DU 165, or RU 170. For example, a functional split of a protocol stack may be employed between CU 160 and DU 165 such that CU 160 may support one or more layers of a protocol stack and DU 165 may support one or more different layers of a protocol stack. In some examples, CU 160 may host higher protocol layer (e.g., layer 3 (L3), layer 2 (L2)) functionality and signaling (e.g., radio resource control (RRC), service data adaptation protocol (SDAP), packet data convergence protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack may be employed between the DU 165 and the RU 170, such that the DU 165 may support one or more layers of the protocol stack, and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between CU 160 and DU 165 or between DU 165 and RU 170 can be within the protocol layer (e.g., some functions of the protocol layer can be performed by one of CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by different ones of CU 160, DU 165, or RU 170). CU 160 can be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. CU 160 can be connected to one or more DUs 165 via midhaul communication links 162 (e.g., F1, F1-c, F1-u), and DU 165 can be connected to one or more RUs 170 via fronthaul communication links 168 (e.g., open fronthaul (FH) interface). In some examples, midhaul communication link 162 or fronthaul communication link 168 may be implemented based on an interface (e.g., a channel) between layers of a protocol stack supported by respective network nodes 105 communicating via such communication links.

[0065] In some wireless communication systems (e.g., wireless communication system 100), infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to core network 130). In some cases, in an IAB network, one or more network nodes 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as a donor entity or an IAB donor. One or more DUs 165 or one or more RUs 170 may be controlled in part by one or more CUs 160 associated with a donor network node 105 (e.g., a donor base station 140). One or more donor network nodes 105 (e.g., IAB donors) may communicate with one or more additional network nodes 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by a coupled IAB donor's DU 165. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., of the RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.

[0066] For example, an access network (AN) or RAN may include an access node (e.g., an IAB donor), communications between an IAB node 104, and one or more UEs 115. The IAB donor may facilitate connectivity between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, the IAB donor may refer to a RAN node having a wired or wireless connection to the core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170), in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and the IAB node 104 may communicate via an F1 interface according to a protocol defining signaling messages (e.g., an F1AP protocol). Additionally or alternatively, CU 160 may communicate with the core network via an interface (which may be an example of a portion of a backhaul link) and may communicate with other CUs 160 (e.g., CUs 160 associated with alternative IAB donors) via an Xn-C interface (which may be an example of a portion of a backhaul link).

[0067] The IAB node 104 may refer to a RAN node that provides IAB functions (e.g., access for UE 115, wireless self-backhaul capabilities, etc.). The DU 165 may act as a distributed scheduling node toward a child node associated with the IAB node 104, and the IAB-MT may act as a scheduled node toward a parent node associated with the IAB node 104. That is, the IAB donor may be referred to as a parent node that communicates with one or more child nodes (e.g., the IAB donor may relay the UE's transmission through one or more other IAB nodes 104). Additionally or alternatively, the IAB node 104 may also be referred to as a parent node or child node of other IAB nodes 104, depending on the relay chain or configuration of the AN. Therefore, the IAB-MT entity of the IAB node 104 may provide a Uu interface for the child IAB node 104 to receive signaling from the parent IAB node 104, and the DU interface (e.g., DU 165) may provide a Uu interface for the parent IAB node 104 to signal to the child IAB node 104 or the UE 115.

[0068] For example, the IAB node 104 may be referred to as a parent node supporting communications for a child IAB node or as a child IAB node associated with an IAB donor, or both. The IAB donor may include a CU 160 having a wired or wireless connection (e.g., backhaul communication link 120) to the core network 130, and may act as a parent node of the IAB node 104. For example, the DU 165 of the IAB donor may relay the transmission to the UE 115 through the IAB node 104, or may directly signal the transmission to the UE 115, or both. The CU 160 of the IAB donor may signal the IAB node 104 via the F1 interface that the communication link is established, and the IAB node 104 may schedule the transmission (e.g., the transmission relayed from the IAB donor to the UE 115) through the DU 165. That is, data may be relayed to and from the IAB node 104 via the NR Uu interface of the MT to the IAB node 104 via signaling. Communications with the IAB node 104 may be scheduled by the DU 165 of the IAB donor, and communications with the IAB node 104 may be scheduled by the DU 165 of the IAB node 104 .

[0069] Where the techniques described herein are applied to the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support techniques for single DCI switching of downlink and uplink BWPs and subbands as described herein. For example, some operations described as being performed by a UE 115 or a network node 105 (e.g., a base station 140) may additionally or alternatively be performed by one or more components of the disaggregated RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).

[0070] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or may be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc.

[0071] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, and network nodes 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, and other examples, such as Figure 1 shown.

[0072] The UE 115 and the network node 105 may wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" may refer to a collection of RF spectrum resources having a physical layer structure defined for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of an RF spectrum band (e.g., a BWP (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-APro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communications with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network node 105 and other devices may refer to communication between a device and any part (e.g., entity, sub-entity) of the network node 105. For example, the terms "send," "receive," or "communicate" when referring to the network node 105 may refer to any part of the network node 105 (e.g., base station 140, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network nodes 105).

[0073] In some examples, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified based on a channel raster for discovery by UE 115. A carrier may operate in a standalone mode, in which case initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.

[0074] The communication link 125 shown in the wireless communication system 100 may include downlink transmissions (e.g., forward link transmissions) from the network node 105 to the UE 115, uplink transmissions (e.g., return link transmissions) from the UE 115 to the network node 105, or both, as well as other transmission configurations. A carrier may carry either downlink communications or uplink communications (e.g., in FDD mode), or may be configured to carry both downlink communications and uplink communications (e.g., in TDD mode).

[0075] A carrier may be associated with a particular bandwidth of the RF spectrum, and in some examples, the carrier bandwidth may be referred to as a "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths of carriers of a particular radio access technology (e.g., 1.4 megahertz (MHz), 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). A device of the wireless communication system 100 (e.g., a network node 105, a UE 115, or both) may have a hardware configuration that supports communications using a particular carrier bandwidth, or may be capable of being configured to support communications using one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network node 105 or a UE 115 that supports concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate using a portion (e.g., a subband, a BWP) or all of a carrier bandwidth.

[0076] The signal waveform transmitted via the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system using MCM techniques, a resource element may refer to a resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and the subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), so that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high order modulation scheme may correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.

[0077] One or more parameter sets for a carrier may be supported, and the parameter sets may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different parameter sets. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications of a UE 115 may be constrained to one or more active BWPs.

[0078] The time interval for the network node 105 or the UE 115 may be expressed in multiples of a basic time unit, which may be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the supported subcarrier spacing, and N f The supported discrete Fourier transform (DFT) size may be indicated. The time intervals of the communication resources may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0079] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a certain number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a certain number of symbol periods (e.g., depending on the length of the cyclic prefix appended in front of each symbol period). In some wireless communication systems 100, the time slot may be further divided into a plurality of micro time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0080] A subframe, a time slot, a mini-time slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0081] Physical channels may be multiplexed according to various techniques in order to communicate using a carrier. For example, physical control channels and physical data channels may be multiplexed using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique to signal via a downlink carrier. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a set of symbol periods and may extend across a system bandwidth of a carrier or a subset of that system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more UEs in UE 115 may monitor or search a control region to obtain control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 , and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0082] In some examples, the network nodes 105 (e.g., base stations 140, RUs 170) may be mobile and thus provide communication coverage for mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 110 may be supported by the same network node 105. In some other examples, overlapping coverage areas 110 associated with different technologies may be supported by different network nodes 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of network nodes 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.

[0083] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC). UE 115 may be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication may include private communication or group communication, and may be supported by one or more services (such as push-to-talk, video, or data). Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.

[0084] In some examples, a UE 115 may be configured to support communication directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 in a group that are performing D2D communication may be within a coverage area 110 of a network node 105 (e.g., a base station 140, a RU 170), which may support aspects of such D2D communication configured (e.g., scheduled) by the network node 105. In some examples, one or more UEs 115 in such a group may be outside of the coverage area 110 of the network node 105, or may otherwise be unable or not configured to receive transmissions from the network node 105. In some examples, a group of UEs 115 communicating via D2D communication may support a one-to-many (1:M) system, in which each UE 115 transmits to each of the other UEs 115 in the group. In some examples, network node 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network node 105.

[0085] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a network node 105 (e.g., a base station 140) associated with the core network 130. User IP packets may be delivered through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the IP service 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0086] The wireless communication system 100 may operate using one or more frequency bands that may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelength ranges from about one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features (which may be referred to as clusters), but these waves may be sufficient to penetrate structures so that macro cells provide services to UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than communications using the lower frequencies and longer wavelengths of the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0087] The wireless communication system 100 may utilize licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 may use unlicensed bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band) to employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology. When operating using unlicensed RF spectrum bands, devices such as network nodes 105 and UEs 115 may employ carrier sensing for conflict detection and avoidance. In some examples, operations performed using unlicensed bands may be based on carrier aggregation configurations (e.g., LAA) in conjunction with component carriers operating using licensed bands. Operations performed using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, and the like.

[0088] A network node 105 (e.g., a base station 140, RU 170) or a UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the network node 105 or UE 115 may be located within one or more antenna arrays or antenna panels that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with the network node 105 may be located at different geographic locations. The network node 105 may include an antenna array having a set of rows and columns of antenna ports that the network node 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals sent via the antenna ports.

[0089] The network node 105 or UE 115 may use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technology may be referred to as spatial multiplexing. The multiple signals may be sent, for example, by a transmitting device via different antennas or different combinations of antennas. Similarly, the multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technologies include single-user MIMO (SU-MIMO), for which multiple spatial layers are sent to the same receiving device; and multi-user MIMO (MU-MIMO), for which multiple spatial layers are sent to multiple devices.

[0090] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network node 105, a UE 115) to shape or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals conveyed via antenna elements of an antenna array so that some signals propagating in a particular direction relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals conveyed via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of these antenna elements may be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).

[0091] The network node 105 or UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the network node 105 (e.g., base station 140, RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the network node 105 along different directions. For example, the network node 105 may send signals according to different sets of beamforming weights associated with different transmission directions. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device (such as the network node 105), or by a receiving device (such as the UE 115)) beam directions for later transmission or reception by the network node 105.

[0092] A transmitting device (e.g., transmitting network node 105, transmitting UE 115) may transmit some signals, such as data signals associated with a particular receiving device, along a single beam direction (e.g., a direction associated with a receiving device, such as receiving network node 105 or receiving UE 115). In some examples, a beam direction associated with transmission along a single beam direction may be determined based on signals transmitted along one or more beam directions. For example, UE 115 may receive one or more of the signals sent by network node 105 along different directions, and may report to network node 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.

[0093] In some examples, transmission by a device (e.g., by a network node 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from the network node 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured beam set across a system bandwidth or one or more subbands. The network node 105 may send a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent along one or more directions by a network node 105 (e.g., base station 140, RU 170), UE 115 may use similar techniques to send signals multiple times along different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115), or to send signals along a single direction (e.g., to send data to a receiving device).

[0094] A receiving device (e.g., UE 115) may perform receiving operations according to multiple receiving configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a receiving device (e.g., network node 105). For example, the receiving device may perform reception according to multiple receiving directions by: receiving via different antenna subarrays, processing the received signals according to different antenna subarrays, receiving according to different receiving beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or processing the received signals according to different receiving beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receiving configurations or receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0095] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. The RLC layer may perform packet segmentation and reassembly to communicate via logical channels. The MAC layer may perform priority processing and multiplexing of logical channels into transport channels. The MAC layer may also implement error detection techniques, error correction techniques, or both to support retransmission to improve link efficiency. In the control plane, the RRC layer may provide the establishment, configuration, and maintenance of an RRC connection that supports a radio bearer for user plane data between a UE 115 and a network node 105 or a core network 130. The PHY layer may map a transport channel to a physical channel.

[0096] UE 115 and network node 105 may support retransmission of data to increase the possibility of data being successfully received. Hybrid automatic repeat request (HARQ) feedback is a technology for increasing the possibility of correctly receiving data via a communication link (e.g., communication link 125, D2D communication link 135). HARQ may include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC) and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device may support the same time slot HARQ feedback, in which case the device may provide HARQ feedback for data received via the previous symbol in the time slot in a specific time slot. In some other examples, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0097] In some aspects, the wireless communication system 100 may support a technique for switching both the downlink subband / BWP and the uplink subband / BWP using a single DCI message (e.g., a single DCI format for switching both the downlink subband / BWP and the uplink subband / BWP). In particular, a single DCI message may be used to dynamically switch or indicate the downlink subband / BWP and the uplink subband / BWP used for SBFD communication. For example, a UE 115 of the wireless communication system 100 may be configured to perform SBFD communication within a first downlink subband (or a first downlink BWP) and a first uplink subband (or a first uplink BWP). Subsequently, the UE 115 may receive a single DCI message from the network node 105 that switches both the downlink subband (or downlink BWP) and the uplink subband (or uplink BWP). In such a case, the UE 115 may then communicate within the new downlink and uplink subband / BWP based on the indication in the DCI message.

[0098] In some aspects, unused fields within a DCI message (e.g., MCS field, TDRA field) may be used in conjunction with the BWP ID field to switch both the downlink subband / BWP and the uplink subband / BWP. In other cases, a DCI message with a reserved bit may be used to indicate / switch both the downlink subband / BWP and the uplink subband / BWP. In some aspects, a UE may be configured with associated downlink and uplink BWP pairs (or sets) (e.g., downlink / uplink BWP pair ID, downlink / uplink BWP set ID), wherein the BWP ID bit field may be used to switch the downlink / uplink BWP pair or set ID, and thus switch both the downlink BWP and the uplink BWP at the UE.

[0099] The techniques described herein can enable the use of a single DCI message to dynamically switch both downlink BWP and uplink BWP (or downlink subband and uplink subband). In this regard, the techniques described herein can reduce the control signaling and network overhead associated with performing BWP or subband switching at a wireless device. By enabling both downlink BWP / subband and uplink BWP / subband to be dynamically switched via a single DCI message, the techniques described herein can reduce the latency at which a UE 115 can perform a BWP / subband switch for SBFD communications. In addition, by reducing the signaling required to perform downlink BWP / subband switching and uplink BWP / subband switching, the techniques described herein can reduce power consumption at a UE 115, resulting in improved performance and battery life.

[0100] Figure 2 An example of a wireless communication system 200 that supports techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. For example, the wireless communication system 200 can support signaling and configuration that enables dynamic switching of downlink subbands / BWPs and uplink subbands / BWPs using a single DCI message or format, as described in reference to Figure 1 described.

[0101] The wireless communication system 200 may include a first UE 115-a, a second UE 115-b, and a network node 105-a. The UE 115-a and the UE 115-b may communicate with the network node 105-a using communication links 205-a and 205-b, respectively. For example, the first UE 115-a may communicate with the network node 105-a via the communication link 205-a, wherein the communication link 205-a may include an example of an access link (e.g., a Uu link). The communication link 205 may include a bidirectional link, which may include both uplink communication and downlink communication. For example, the UE 115-a may send an uplink transmission (such as an uplink control signal or an uplink data signal) to the network node 105-a via the communication link 205-a, and the network node 105-a may send a downlink transmission (such as a downlink control signal or a downlink data signal) to the first UE 115-a via the communication link 205-a.

[0102] As previously described herein, some wireless communication systems and devices may support half-duplex communication, wherein the corresponding wireless device can transmit or receive in one direction at a time. Additionally, some wireless communication systems and devices may support full-duplex communication, wherein the wireless device can transmit and receive signals simultaneously.

[0103] For example, in the context of full-duplex communications, the network node 105-a may be configured to send downlink signals to a first UE 115-a and may receive uplink communications from a second UE 115-b at the same time (e.g., within the same time slot or TTI 215). In such cases, the downlink and uplink communications may be performed via separate antenna panels at the network node 105-a (e.g., a Tx antenna panel for sending downlink signals, an Rx antenna panel for receiving uplink signals).

[0104] Due to the simultaneous transmission and reception of signals, full-duplex communications may be susceptible to different types of interference, such as self-interference and clutter echoes. For example, continuing to refer to full-duplex communications in the context of network node 105-a, self-interference may occur when a signal transmitted by the Tx antenna panel of network node 105-a is received by the Rx antenna panel at network node 105-a. Similarly, clutter echoes may occur when a downlink signal transmitted by the Tx antenna panel is reflected back to the Rx antenna panel by some object or material, thereby interfering with other communications received at the Rx antenna panel.

[0105] Some wireless communications may support SBFD communications, where a wireless device performs simultaneous transmission and reception of communications (e.g., uplink and downlink communications, uplink and sidelink communications, etc.) on a sub-band basis. Figure 2As shown, component carrier bandwidth 210 may span resource sets in the time domain (e.g., TTI 215) and may span BWP sets in the frequency domain. For example, bandwidth 210 may include a first downlink BWP 220-a, an uplink BWP 225, and a second downlink BWP 220-b. Bandwidth 210 may include any number of downlink BWPs 220 and uplink BWPs 225, wherein each respective BWP includes one or more subbands. For example, first downlink BWP 220-a may include downlink subbands 230-a, 230-b, and 230-c, and second downlink BWP 220-b may include downlink subbands 230-d, 230-e, and 230-f. Similarly, uplink BWP 225 may include uplink subbands 235-a, 235-b, and 235-c.

[0106] In the context of SBFD communications, the first UE 115-a (or another wireless device) may be configured to perform overlapping (e.g., simultaneous) uplink and downlink communications in different subbands. For example, the first UE 115-a may receive a downlink signal in the downlink subband 230-a and may send an uplink signal in the uplink subband 235-c, wherein the downlink signal and the uplink signal at least partially overlap in time.

[0107] In some cases, SBFD communication may result in more efficient use of resources and may reduce the latency over which downlink and uplink communications may be performed. In addition, SBFD communication may increase the uplink duty cycle, which may result in reduced latency (e.g., SBFD enables the first UE 115-a to receive downlink signals in what would otherwise be an uplink-only timeslot, resulting in latency savings). In addition, SBFD communication may achieve improved uplink coverage, enhance system capacity, resource utilization, and spectral efficiency, and may enable flexible and dynamic uplink and downlink resource adaptation in a robust manner based on uplink and downlink traffic.

[0108] However, in some conventional wireless communication systems, the network may indicate via separate control messages (e.g., DCI messages) which downlink BWP 220 or downlink subband 230 and which uplink BWP 225 or uplink subband 235 the UE 115 is expected to use for SBFD communications. That is, a first DCI format (e.g., DCI format 1_1 / 1_2) may be used to indicate or switch the downlink subband / BWP, and a second DCI format (e.g., DCI format 0_1 / 0_2) may be used to indicate or switch the uplink subband / BWP. Such DCI messages may include a BWP ID field for indicating or switching the downlink or uplink BWP.

[0109] For example, DCI format 1_1 / 1_2 may include a BWP ID field that indicates or switches the downlink BWP 220 at UE 115. Similarly, DCI format 0_1 / 0_2 may include a BWP ID field that indicates or switches the uplink BWP 225 at UE 115. In this regard, according to some conventional solutions, if network node 105-a is to switch which downlink BWP 220 and uplink BWP 225 are intended for UE 115-a to use, network node 105-a may need to send two separate DCI messages. This may result in increased signaling overhead within wireless communication system 200.

[0110] Thus, the wireless communication system 200 may support techniques for switching both the downlink BWP 220 and the uplink BWP 225 (and / or the downlink subband 230 and the uplink subband 235) using a single DCI message or format. In other words, aspects of the present disclosure may support DCI formats that are capable of indicating or switching both the downlink and uplink BWP / subbands. In particular, a single DCI message may be used to dynamically switch or indicate the downlink subband / BWP and the uplink subband / BWP used for SBFD communication. Being able to switch the downlink BWP 220 and the uplink BWP 225 (and / or the downlink subband 230 and the uplink subband 235) may be particularly useful in the context of SBFD communication, because SBFD communication enables different downlink and uplink frequency resources / subbands to be used simultaneously within the same TTI 215 (e.g., time slot, symbol).

[0111] For example, Figure 2 As shown, UE 115-a may receive an RRC message 240 from network node 105-a indicating one or more DCI formats that may be used to switch both downlink BWP 220 and uplink BWP 225, switch both downlink subband 230 and uplink subband 235, or both. For example, RRC message 240 may indicate DCI formats that include one or more bit fields that may be used to switch both downlink BWP 220 and uplink BWP 225 at UE 115-a.

[0112] In some aspects, the RRC message 240 may indicate other information associated with full-duplex communication (e.g., SBFD communication) at the UE 115-a. For example, in some cases, the RRC message 240 may indicate a set of downlink / uplink BWP pair IDs (and / or downlink / uplink BWP set IDs), where each BWP pair / set ID includes or is associated with a downlink BWP 220 and an uplink BWP 225. For example, a first BWP pair ID may include a downlink BWP #1 and an uplink BWP #1, and a second BWP pair ID may include a downlink BWP #3 and an uplink BWP #4. The use of the BWP pair IDs may enable a subsequent DCI message 250 to switch both the downlink BWP 220 and the uplink BWP 225 at the UE 115-a by indicating a new BWP pair ID.

[0113] The UE 115-a may receive control signaling 245 indicating downlink and uplink BWPs and / or downlink and uplink subbands for SBFD communication at the UE 115-a. For example, in some cases, the control signaling 245 (e.g., RRC signaling, DCI signaling, MAC-CE signaling, SIB signaling, etc.) may indicate a first downlink BWP 200-a and a first uplink BWP 225 for SBFD communication at the UE 115-a. In other words, the control signaling 245 may indicate that the UE 115-a is to perform communications (e.g., SBFD communications) within the first downlink BWP 220-a and the uplink BWP 225. For another example, in other cases, the control signaling 245 may indicate a first downlink subband 230-a and a first uplink subband 235-a for SBFD communication at the UE 115-a.

[0114] In some implementations, the network node 105-a may send the RRC message 240, the control signaling 245, or both based on an indication that the UE 115-a is capable of performing full-duplex communication (e.g., based on capability signaling from the UE 115-a). In some cases, the UE 115-a may receive the control signaling 245 based on receiving the RRC message 240. Additionally or alternatively, the RRC message 240 and the control signaling 245 may include the same message / signaling. In other words, in some cases, information described herein as being indicated via the RRC message 240 may additionally or alternatively be indicated via the control signaling 245, and vice versa.

[0115] In some aspects, the UE 115-a may receive a DCI message 250 from the network node 105-a that instructs the UE 115-a to switch the downlink BWP 220 and the uplink BWP 225 and / or to switch the downlink subband 230 and the uplink subband 235. For example, the DCI message 250 may instruct the UE 115-a to switch to the second downlink BWP 220-b and the second uplink BWP 225. Additionally or alternatively, the DCI message 250 may instruct the UE 115-a to switch to the second downlink subband 230 (e.g., downlink subbands 230-b, 230-c) and the second uplink subband 235 (e.g., uplink subbands 235-b, 235-c).

[0116] The DCI message 250 may indicate that both the downlink BWP / subband and the uplink BWP / subband are to be switched via a number of different implementations or methods. Different implementations for switching both the downlink BWP / subband and the uplink BWP / subband may include, but are not limited to, utilizing unused bits, utilizing reserved bits, reinterpreting the BWP indicator bit field, switching BWP pair IDs, utilizing GC-DCI message 250, etc.

[0117] For example, in some cases, downlink BWP 220 and uplink BWP 225 may be associated with separately configured BWPIDs (e.g., downlink BWP #N, uplink BWP #M, where N may be equal to or not equal to M). In such cases, DCI message 250 may indicate a switch for downlink / uplink BWP / subband via an unused bit, a BWP indicator bit field, a dedicated / reserved bit, or any combination thereof. For example, DCI message 250 may be associated with a DCI format that does not schedule data communications at UE 115-a. In such cases, the unused bits within DCI message 250 may be used to switch downlink BWP 220 and uplink BWP 225 (and / or downlink subband 230 and uplink subband 235) at UE 115-a.

[0118] For example, the DCI message 250 may include a bit field value of all “0”s or all “1”s (e.g., an FDRA field having all “0”s or all “1”s) indicating that the DCI message 250 does not schedule uplink and / or downlink data at the UE 115-a. In this example, additional fields (e.g., an MCS field, a time domain resource allocation (TDRA) field) may be used to indicate a switched uplink BWP 225 ID (and / or a switched uplink subband 235), and the BWP indicator field may be used to indicate a switched downlink BWP 220 ID (and / or a switched downlink subband 230), or vice versa. For another example, in the case where the DCI message 250 does not schedule data at UE 115 - a (e.g., having an FDRA field of all “0”s or all “1”s), the MCS field, TDRA field, etc. may be used to indicate both the switched downlink BWP 220 and uplink BWP 225 (and / or indicate the switched downlink subband 230 and uplink subband 235).

[0119] In such a case, UE 115-a may be configured to determine that additional bit field values ​​(e.g., MCS, TDRA) within DCI message 250 are used to switch downlink BWP 220 and uplink BWP 225 (and / or downlink subband 230 and uplink subband 235) based on determining that DCI message 250 does not schedule any data communication at UE 115-a. In other words, if DCI message 250 does not schedule data communication at UE 115-a (e.g., based on determining that DCI message 250 includes an FDRA field having all "0"s or all "1"s), UE 115-a may be configured to reinterpret the additional bit field values ​​(e.g., MCS, TDRA).

[0120] As another example, DCI message 250 may switch both downlink BWP / subband and uplink BWP / subband by reusing a DCI format with reserved bits, wherein DCI message 250 may or may not schedule other communications at UE 115-a. For example, RRC message 240 may configure in a downlink DCI format several reserved bits that may be used to indicate a switched uplink BWP 225 ID and a BWP indicator field that may be used to indicate a switched downlink BWP 220 ID. Conversely, RRC message 240 may indicate a DCI format that includes reserved bits for switching downlink BWP 220, wherein uplink BWP 225 may be switched using the BWP indicator field. Additionally or alternatively, the RRC message 240 may indicate or configure one or more DCI formats that include reserved bits for indicating / switching both the downlink BWP 220 and the uplink BWP 225 (e.g., reserved fields for indicating both the downlink BWP ID and the uplink BWP ID switched), and / or reserved bits for switching both the downlink subband 230 and the uplink subband 235.

[0121] In some implementations, the BWP indicator field within the DCI message 250 may be reused (or reinterpreted) to switch both the downlink BWP and the uplink BWP (and / or the downlink subband and the uplink subband) at the UE 115-a. For example, in some cases, the BWP indicator field within the DCI message 250 may be reused or reinterpreted with different meanings. For example, in some cases, two bits of the BWP indicator field may be used to indicate both the new downlink BWP 220 ID and the new uplink BWP 225 ID. In this example, one bit of the BWP indicator field may be used to indicate the BWP ID associated with the new / switched downlink BWP 220, and one bit of the BWP indicator field may be used to indicate the BWP ID associated with the new / switched uplink BWP 225. In such cases, there may be a maximum of two configured downlink BWPs 220 and two configured uplink BWPs 225 (each with 1 bit).

[0122] Additionally or alternatively, if there are more than two configured downlink BWPs 220 and two configured uplink BWPs 225, two bits of the BWP indicator field may be used to indicate the BWP ID associated with the new / switched downlink BWP 220, and two bits of the BWP indicator field may be used to indicate the BWP ID associated with the new / switched uplink BWP 225.

[0123] In the event that the DCI message 250 switches the downlink subband 230 and the uplink subband 235 (e.g., via unused bit fields (MCS, TDRA), via the BWP indicator field, via reserved bits, or any combination thereof), the new downlink and uplink subbands may be indicated via a starting resource block index and an ending resource block index / allocated bandwidth per subband, a preconfigured resource block set index per subband, or both. For example, the DCI message 250 may indicate the respective starting and ending resource block indexes associated with the second downlink subband 230 and the second uplink subband 235 in order to signal the switch to the second downlink / uplink subband. For another example, the DCI message 250 may indicate the respective resource block set indexes associated with the second downlink subband 230 and the second uplink subband 235 in order to signal the switch to the second downlink / uplink subband.

[0124] In other cases, DCI message 250 may switch both the downlink BWP and the uplink BWP (and / or the downlink subband and the uplink subband) at UE 115-a by indicating or activating a new BWP pair ID. In other words, downlink BWP 220 and uplink BWP 225 may be associated with a single configured BWP ID (which may be referred to as a BWP pair ID) for SBFD operation. In such cases, each BWP pair ID is associated with a downlink BWP 220 (e.g., a downlink BWP ID) and an uplink BWP 225 (e.g., an uplink BWP ID), wherein DCI message 250 may be configured to switch both downlink BWP 220 and uplink BWP 225 by indicating a new BWP pair ID.

[0125] The IDs of the downlink BWP 220 and uplink BWP 225 within each corresponding BWP pair ID may be the same or different (e.g., BWP pair ID #1 = {DL BWP ID #1, UL BWP ID #1}; BWP pair ID #2 = {DL BWP ID #3, UL BWP ID #4}). If the UE 115-a and / or the network is limited to a maximum of four BWP IDs, two pairs may be used for SBFD BWPs and two pairs may be used for half-duplex BWPs.

[0126] For example, a BWP indicator field within a DCI message 250 (e.g., an uplink or downlink DCI message 250) may be used to indicate a newly configured BWP pair ID including a BWP ID associated with a second downlink BWP 220 and a second uplink BWP 225. In this example, the DCI message 250 may indicate a pair of BWPs (e.g., a downlink and uplink BWP) that are switched for SBFD or half-duplex operation, wherein the RRC message 240 and / or control signaling 245 may indicate (e.g., preconfigure) the meaning of the BWP indicator field applicable to SBFD and / or half-duplex operation of the DCI message 250. In other words, the control signaling 245 may activate a first BWP pair ID associated with the first uplink BWP 225 and the first downlink BWP 220-a, and the DCI message 250 may indicate or activate a second BWP pair ID associated with the second uplink BWP 225 and the second downlink BWP 220 (e.g., downlink BWP 220-b).

[0127] As another example, if UE 115-a is to be configured with more than two pairs of BWPs for SBFD communication and two pairs of BWPs for half-duplex communication, DCI message 250 may include one or more additional bits of the BWP indicator field (e.g., five or more BWP indicator field bits) that may be used to indicate whether the BWP pair ID field is for half-duplex BWP pairs or for SBFD BWP pairs. In this regard, the network may be able to configure up to four pairs of BWP pair IDs for both half-duplex communication and SBFD communication. Furthermore, in such cases, a DCI format with additional BWP indicator field bits may be indicated / configured via RRC message 240.

[0128] In some implementations, the network node 105-a may utilize a GC-DCI format (e.g., DCI format 2_x) for a DCI message 250 that switches both the downlink BWP 220 and the uplink BWP 225 (and / or both the downlink subband and the uplink subband) for a plurality of UEs 115, including the UE 115-a. In such cases, the GC-DCI message 250 may indicate the switching for the downlink BWP / subband and the uplink BWP / subband via individual downlink BWP 220 and uplink BWP 220 IDs (and / or subband IDs) or via configured BWP pair IDs, as described herein. Furthermore, in such cases, the network node 105-a may send the GC-DCI message 250 to a group of UEs 115 associated with the same downlink / uplink BWP configuration (and / or the same downlink / uplink subband configuration) for SBFD operation.

[0129] For example, Figure 2 , the network node 105-a may send a GC-DCI message 250 to the first UE 115-a and the second UE 115-b, wherein the GC-DCI message 250 switches the downlink BWP 220 and the uplink BWP 225 (and / or the downlink subband 230 and the uplink subband 235) at both the first UE 115-a and the second UE 115-b. In this example, the first UE 115-a and the second UE 115-b may have the same downlink / uplink subband configuration for SBFD operation.

[0130] Subsequently, the UE 115-a may be configured to perform full-duplex communication within the second downlink BWP 220 and the second uplink BWP 225 (and / or within the second downlink subband 230 and the second uplink subband 235). At 325, the UE 115-a may perform full-duplex communication based on receiving the RRC message 240, receiving the control signaling 245, receiving the DCI message 250 indicating the switch, switching to the new downlink BWP / subband and uplink BWP / subband, or any combination thereof. The full-duplex communication performed by the UE 115-a at 325 may be performed with the same or different wireless device (such as the network node 105-a, an additional network node 105, another UE 115, etc.).

[0131] For example, Figure 2 As shown, UE 115-a may receive a downlink message 255 from network node 105-a within a second downlink BWP 220 and / or a second downlink subband 230, and may send an uplink message 260 to network node 105-a within a second uplink BWP 225 and / or a second uplink subband 235.

[0132] The techniques described herein may enable the use of a single DCI message 250 to dynamically switch both the downlink BWP 220 and the uplink BWP 225 (or the downlink subband 230 and the uplink subband 235). In this regard, the techniques described herein may reduce control signaling 245 and network overhead associated with performing BWP or subband switching at a wireless device. By enabling both the downlink BWP / subband and the uplink BWP / subband to be dynamically switched via a single DCI message 250, the techniques described herein may reduce the latency at which a UE 115-a may perform a BWP / subband switch for SBFD communications. In addition, by reducing the signaling required to perform downlink BWP / subband switching and uplink BWP / subband switching, the techniques described herein may reduce power consumption at a UE 115-a, resulting in improved performance and battery life.

[0133] Figure 3 An example of a process flow 300 is illustrated for supporting techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure. In some examples, the process flow 300 can implement or be implemented by aspects of the wireless communication system 100, the wireless communication system 200, or both. For example, the process flow 300 illustrates signaling and configuration that enables a single DCI message / format to switch both downlink BWP / subband and uplink BWP / subband, as described in reference to Figure 1-2 described.

[0134] In some cases, process flow 300 may include UE 115-c and network node 105-b, which may be examples of corresponding devices as described herein. Figure 3 The UE 115-c and the network node 105-b illustrated in FIG. 1 may include Figure 2 Examples of UE 115-a and network node 105-b are respectively illustrated in FIG.

[0135] In some examples, the operations illustrated in process flow 300 may be performed by hardware (e.g., including circuits, processing blocks, logic components, and other components), code executed by a processor (e.g., software or firmware), or any combination thereof. The following alternative examples may be implemented in which some of the steps are performed in an order different from that described or not performed at all. In some cases, the steps may include additional features not mentioned below, or additional steps may be added.

[0136] At 305, UE 115-c may receive an RRC message from network node 105-b indicating one or more DCI formats that may be used to switch both downlink BWP and uplink BWP, switch both downlink subband and uplink subband, or both. For example, the RRC message may indicate DCI formats that include one or more bit fields that may be used to switch both downlink BWP and uplink BWP at UE 115-c.

[0137] In some aspects, the RRC message may indicate other information associated with full-duplex communication (e.g., SBFD communication) at UE 115-c. For example, in some cases, the RRC message may indicate a set of BWP pair IDs, where each BWP pair ID includes or is associated with a downlink BWP and an uplink BWP. For example, a first BWP pair ID may include downlink BWP#1 and uplink BWP#1, and a second BWP pair ID may include downlink BWP#3 and uplink BWP#4. As previously described herein, the BWP pair ID may enable a subsequent DCI message to switch both the downlink BWP and the uplink BWP at UE 115-c by indicating a new BWP pair ID.

[0138] At 310, the UE 115-c may receive control signaling indicating a downlink BWP and an uplink BWP and / or a downlink subband and an uplink subband to be used for SBFD communication at the UE 115-c. In some implementations, the network node 105-b may send the RRC message at 305, the control signaling at 310, or both based on an indication that the UE 115-c is capable of performing full-duplex communication (e.g., based on capability signaling from the UE 115-c). In other words, the network node 105-b may activate the corresponding downlink BWP / subband and uplink BWP / subband to be used for full-duplex communication at the UE 115-c.

[0139] For example, in some cases, control signaling (e.g., RRC signaling, DCI signaling, MAC-CE signaling, SIB signaling, etc.) may indicate a first downlink BWP and a first uplink BWP for SBFD communication at UE 115-c. For another example, in other cases, control signaling may indicate a first downlink subband and a first uplink subband for SBFD communication at UE 115-c.

[0140] In some cases, the UE 115-c may receive the control signaling at 310 based on receiving the RRC message at 305. Additionally or alternatively, the RRC message at 305 and the control signaling at 310 may include the same message / signaling. In other words, in some cases, the information described herein as being indicated via the RRC message at 305 may additionally or alternatively be indicated via the control signaling at 310. Conversely, in some cases, the information described herein as being indicated via the control signaling at 310 may additionally or alternatively be indicated via the RRC message at 305.

[0141] At 315, UE 115-c may receive a DCI message from network node 105-b instructing UE 115-c to switch downlink and uplink BWPs and / or subbands. For example, the DCI message may instruct UE 115-c to switch to a second downlink BWP and a second uplink BWP. Additionally or alternatively, the DCI message may instruct UE 115-c to switch to a second downlink subband and a second uplink subband.

[0142] The UE 115-c may receive the DCI message at 315 based on receiving the RRC message at 305, receiving the control signaling at 310, or both. For example, the DCI message may present a DCI format capable of switching both downlink BWP and uplink BWP and / or both downlink subband and uplink subband, where the DCI format was previously indicated via the RRC message at 305, the control signaling at 310, or both.

[0143] As previously described herein, the DCI message may indicate that both the downlink BWP / subband and the uplink BWP / subband are to be switched via a variety of different implementations or methods. Different implementations for switching both the downlink BWP / subband and the uplink BWP / subband may include, but are not limited to, utilizing unused bits, utilizing reserved bits, reinterpreting the BWP indicator bit field, switching BWP pair IDs, utilizing GC-DCI messages, etc.

[0144] For example, as previously described herein, the DCI message may not schedule data at the UE 115-c, and the unused bit fields may be utilized to switch both the downlink BWP / subband and the uplink BWP / subband. Other (unused) fields that may be used to switch the downlink BWP / subband and the uplink BWP / subband may include, but are not limited to, the MCS field, the TDRA field, etc.

[0145] For example, a DCI message may use a bit value of a BWP indicator field within a DCI message to switch a downlink BWP (or downlink subband), and may utilize one or more additional bit field values ​​(e.g., MCS bit field, TDRA bit field) to switch an uplink BWP (or uplink subband). Conversely, a DCI message may use a bit value of a BWP indicator field within a DCI message to switch an uplink BWP (or uplink subband), and may utilize one or more additional bit field values ​​(e.g., MCS bit field, TDRA bit field) to switch a downlink BWP (or downlink subband). Additionally or alternatively, additional bit field values ​​(e.g., MCS, TDRA) may be used to indicate / switch both an uplink BWP / subband and a downlink BWP / subband (e.g., without a separate indication within the BWP indicator field).

[0146] In such cases, UE 115-c may be configured to determine that additional bit field values ​​(e.g., MCS, TDRA) are used to switch downlink BWP / subband and / or uplink BWP / subband based on determining that the DCI message does not schedule any data communication at UE 115-c. In other words, if the DCI message does not schedule data communication at UE 115-c, UE 115-c may be configured to reinterpret the additional bit field values ​​(e.g., MCS, TDRA).

[0147] In some cases, as previously described herein, the RRC message and / or control signaling may indicate a DCI format including a reserved bit that may be used to switch downlink BWP / subband and / or uplink BWP / subband. In such cases, the DCI message may present a DCI format, and the reserved bit field may be used to switch both downlink BWP and uplink BWP (and / or downlink subband and uplink subband).

[0148] In some implementations, the BWP indicator field within the DCI message may be reused (or reinterpreted) to switch both the downlink BWP and the uplink BWP (and / or both the downlink subband and the uplink subband) at the UE 115-c. For example, in some cases, the first bit of the BWP indicator field may be used to switch the downlink BWP (and / or the downlink subband), and the second bit of the BWP indicator field may be used to switch the uplink BWP (and / or the uplink subband), or vice versa. Similarly, as another example, the first two bits (first pair of bits) (e.g., bits #1 and 2) of the BWP indicator field may be used to switch the downlink BWP (and / or the downlink subband), and the last two bits (second pair of bits) (e.g., bits #3 and 4) of the BWP indicator field may be used to switch the uplink BWP (and / or the uplink subband), or vice versa.

[0149] In other cases, the DCI message may switch both the downlink BWP and the uplink BWP (and / or the downlink subband and the uplink subband) at UE 115-c by indicating or activating a new BWP pair ID. For example, the control signaling at 310 may activate a first BWP pair ID associated with a first uplink BWP and a first downlink BWP. In this example, the DCI message may indicate or activate a second BWP pair ID associated with a second uplink BWP and a second downlink BWP. The indication of the second BWP pair ID may be indicated via a BWP indicator field within the DCI message, other bit fields within the DCI message (e.g., MCS, TDRA), or both.

[0150] In addition, in some cases, the DCI message may include a GC-DCI message (e.g., DCI format 2x) that switches both downlink BWP and uplink BWP (and / or both downlink subband and uplink subband) for multiple UEs 115, including UE 115-c. In such cases, the network node 105-b may send the GC-DCI message to a group of UEs 115 associated with the same downlink / uplink BWP configuration (and / or the same downlink / uplink subband configuration) for SBFD operation.

[0151] At 320, UE 115-c may switch to a second downlink BWP and a second uplink BWP (and / or a second downlink subband and a second uplink subband) based on the received DCI message. In other words, UE 115-c may perform a BWP or subband switching procedure. In some cases, switching to a new downlink BWP / subband and uplink BWP / subband may include retuning RF components at UE 115-c.

[0152] At 325, the UE 115-c may perform full-duplex communication within the second downlink BWP and the second uplink BWP (and / or within the second downlink subband and the second uplink subband). The UE 115-c may perform full-duplex communication at 325 based on receiving the RRC message at 305, receiving the control signaling at 310, receiving the DCI message at 315, switching to a new downlink BWP / subband and uplink BWP / subband at 320, or any combination thereof. The full-duplex communication performed by the UE 115-a at 325 may be performed with the same or a different wireless device (such as the network node 105-b, an additional network node 105, another UE 115, etc.).

[0153] For example, UE 115-c may receive a downlink signal from network node 105-a within a second downlink BWP / subband and may send an uplink signal to network node 105-b within a second uplink BWP / subband. For another example, UE 115-c may receive a downlink signal from network node 105-a within a second downlink BWP / subband and may send a signal to another network node 105 (and / or another UE 115) within a second uplink BWP / subband.

[0154] The techniques described herein may enable the use of a single DCI message to dynamically switch both downlink BWP and uplink BWP (or downlink subband and uplink subband). In this regard, the techniques described herein may reduce control signaling and network overhead associated with performing BWP or subband switching at a wireless device. By enabling both downlink BWP / subband and uplink BWP / subband to be dynamically switched via a single DCI message, the techniques described herein may reduce the latency at which a UE 115-c may perform a BWP / subband switch for SBFD communications. In addition, by reducing the signaling required to perform downlink BWP / subband switching and uplink BWP / subband switching, the techniques described herein may reduce power consumption at a UE 115-c, resulting in improved performance and battery life.

[0155] Figure 4 A block diagram 400 of a device 405 supporting techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is shown. The device 405 may be an example of aspects of the UE 115 as described herein. The device 405 may include a receiver 410, a transmitter 415, and a communication manager 420. The device 405 may also include one or more processors, a memory coupled to the one or more processors, and instructions stored in the memory that are executable by the one or more processors to enable the one or more processors to perform the single DCI switching features discussed herein. Each of these components may communicate with each other (e.g., via one or more buses).

[0156] The receiver 410 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to techniques for downlink and uplink BWP and single DCI switching of subbands). The information may be communicated to other components of the device 405. The receiver 410 may utilize a single antenna or a collection of multiple antennas.

[0157] The transmitter 415 may provide means for transmitting signals generated by other components of the device 405. For example, the transmitter 415 may transmit information associated with various information channels (e.g., control channels, data channels, information channels related to techniques for single DCI switching for downlink and uplink BWP and subbands), such as packets, user data, control information, or any combination thereof. In some examples, the transmitter 415 may be co-located with the receiver 410 in a transceiver module. The transmitter 415 may utilize a single antenna or a collection of multiple antennas.

[0158] The communication manager 420, the receiver 410, the transmitter 415, or various combinations thereof, or various components thereof may be examples of means for performing various aspects of the techniques for downlink and uplink BWP and single DCI switching of subbands as described herein. For example, the communication manager 420, the receiver 410, the transmitter 415, or various combinations thereof, or components thereof may support methods for performing one or more of the functions described herein.

[0159] In some examples, the communication manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a digital signal processor (DSP), a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof that is configured to or otherwise supports components for performing the functions described in the present disclosure. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0160] Additionally or alternatively, in some examples, the communication manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting components for performing the functions described in the present disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.

[0161] In some examples, communication manager 420 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with receiver 410, transmitter 415, or both. For example, communication manager 420 may receive information from receiver 410, transmit information to transmitter 415, or be integrated in conjunction with receiver 410, transmitter 415, or both to obtain information, output information, or perform various other operations as described herein.

[0162] For example, the communication manager 420 may be configured or otherwise support components for receiving control signaling from a network node indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication. The communication manager 420 may be configured or otherwise support components for receiving a DCI message from a network node indicating a switch to a second downlink BWP and a second uplink BWP, or to a second downlink subband and a second uplink subband, or both. The communication manager 420 may be configured or otherwise support components for performing full-duplex communication with a network node within a second downlink BWP and a second uplink BWP, or within a second downlink subband and a second uplink subband, or within both.

[0163] By including or configuring a communication manager 420 according to an example as described herein, the device 405 (e.g., a processor that controls or otherwise couples with the receiver 410, the transmitter 415, the communication manager 420, or a combination thereof) can support techniques that enable the use of a single DCI message to dynamically switch both downlink BWP and uplink BWP (or downlink subband and uplink subband). In this regard, the techniques described herein can reduce control signaling and network overhead associated with performing BWP or subband switching at a wireless device. By enabling both downlink BWP / subband and uplink BWP / subband to be dynamically switched via a single DCI message, the techniques described herein can reduce the latency at which the UE 115 can perform BWP / subband switching for SBFD communications. In addition, by reducing the signaling required to perform downlink BWP / subband switching and uplink BWP / subband switching, the techniques described herein can reduce power consumption at the UE 115, resulting in improved performance and battery life.

[0164] Figure 5 A block diagram 500 of a device 505 supporting techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is shown. The device 505 may be an example of aspects of the device 405 or UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communication manager 520. The device 505 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0165] The receiver 510 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to techniques for downlink and uplink BWP and single DCI switching of subbands). The information may be communicated to other components of the device 505. The receiver 510 may utilize a single antenna or a collection of multiple antennas.

[0166] The transmitter 515 may provide means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information associated with various information channels (e.g., control channels, data channels, information channels related to techniques for single DCI switching for downlink and uplink BWP and subbands), such as packets, user data, control information, or any combination thereof. In some examples, the transmitter 515 may be co-located with the receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a collection of multiple antennas.

[0167] The device 505 or its various components may be examples of components for performing various aspects of the techniques for single DCI switching of downlink and uplink BWP and subbands as described herein. For example, the communication manager 520 may include a control signaling reception manager 525, a DCI message reception manager 530, a full-duplex communication manager 535, or any combination thereof. The communication manager 520 may be an example of various aspects of the communication manager 420 as described herein. In some examples, the communication manager 520 or its various components may be configured to use or otherwise cooperate with the receiver 510, the transmitter 515, or both to perform various operations (e.g., receive, obtain, monitor, output, send). For example, the communication manager 520 may receive information from the receiver 510, transmit information to the transmitter 515, or be integrated with the receiver 510, the transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.

[0168] The control signaling reception manager 525 may be configured to or otherwise support components for receiving control signaling from a network node, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication. The DCI message reception manager 530 may be configured to or otherwise support components for receiving a DCI message from a network node, the DCI message indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both. The full-duplex communication manager 535 may be configured to or otherwise support components for performing full-duplex communication with a network node within a second downlink BWP and a second uplink BWP, or within a second downlink subband and a second uplink subband, or within both.

[0169] In some cases, the control signaling reception manager 525, the DCI message reception manager 530, and the full-duplex communication manager 535 may each be a processor (e.g., a transceiver processor, or a radio processor, or a transmitter processor, or a receiver processor) or at least a part of a processor. The processor may be coupled to a memory and execute instructions stored in the memory, which enable the processor to perform or facilitate the features of the control signaling reception manager 525, the DCI message reception manager 530, and the full-duplex communication manager 535 discussed herein. The transceiver processor may be co-located with the transceiver of the device and / or communicate with it (e.g., direct its operation). The radio processor may be co-located with the radio of the device (e.g., NR radio, LTE radio, Wi-Fi radio) and / or communicate with it (e.g., direct the operation of the radio). The transmitter processor may be co-located with the transmitter of the device and / or communicate with it (e.g., direct its operation). The receiver processor may be co-located with the receiver of the device and / or communicate with it (e.g., direct its operation).

[0170] Figure 6A block diagram 600 of a communication manager 620 supporting techniques for single DCI switching of downlink and uplink BWPs and subbands according to one or more aspects of the present disclosure is shown. The communication manager 620 may be an example of aspects of the communication manager 420, the communication manager 520, or both as described herein. The communication manager 620 or its various components may be examples of components for performing various aspects of the techniques for single DCI switching of downlink and uplink BWPs and subbands as described herein. For example, the communication manager 620 may include a control signaling reception manager 625, a DCI message reception manager 630, a full-duplex communication manager 635, an RRC message reception manager 640, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0171] The control signaling reception manager 625 may be configured or otherwise support components for receiving control signaling from a network node, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication. The DCI message reception manager 630 may be configured or otherwise support components for receiving a DCI message from a network node, the DCI message indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both. The full-duplex communication manager 635 may be configured or otherwise support components for performing full-duplex communication with a network node within a second downlink BWP and a second uplink BWP, or within a second downlink subband and a second uplink subband, or within both.

[0172] In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving one or more bit values ​​of the BWP indicator field indicating the second downlink BWP or the second uplink BWP via the DCI message. In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving one or more additional bit field values ​​indicating the other of the second downlink BWP or the second uplink BWP via the DCI message, wherein full-duplex communication is performed within the second downlink BWP and the second uplink BWP based on the one or more BWP indicator field values ​​and the one or more additional bit field values.

[0173] In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for determining one or more additional bit field values ​​to indicate the other of the second downlink BWP or the second uplink BWP based on the DCI message not scheduling data at the UE. In some examples, the one or more additional bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0174] In some examples, the DCI message reception manager 630 may be configured or otherwise support components for determining one or more bit field values ​​within the DCI message to indicate a second downlink BWP and a second uplink BWP based on the DCI message not scheduling data at the UE.

[0175] In some examples, the RRC message reception manager 640 may be configured to or otherwise support components for receiving an RRC message indicating a DCI format from a network node, the DCI format comprising one or more bits for switching a downlink BWP, a downlink subband, an uplink BWP, an uplink subband, or any combination thereof, wherein the DCI message is associated with the DCI format.

[0176] In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving a first bit value of a BWP indicator field indicating a second downlink BWP via a DCI message. In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving a second bit value of a BWP indicator field indicating a second uplink BWP via a DCI message, wherein full-duplex communication is performed within the second downlink BWP and the second uplink BWP based on the first bit value and the second bit value of the BWP indicator field.

[0177] In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving, via a DCI message, a first pair of bit values ​​of a BWP indicator field indicating a second downlink BWP. In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving, via a DCI message, a second pair of bit values ​​of a BWP indicator field indicating a second uplink BWP, wherein full-duplex communication is performed within the second downlink BWP and the second uplink BWP based on the first pair of bit values ​​and the second pair of bit values ​​of the BWP indicator field.

[0178] In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving one or more bit values ​​of a BWP indicator field via a DCI message, the one or more bit values ​​indicating a downlink and uplink BWP pair or set identifier associated with a second downlink BWP and a second uplink BWP.

[0179] In some examples, the control signaling reception manager 625 may be configured to or otherwise support components for receiving an indication of a set of multiple downlink and uplink BWP pairs or set identifiers from a network node via control signaling, additional control signaling, or both, wherein each downlink and uplink BWP pair or set identifier is associated with a corresponding downlink BWP and a corresponding uplink BWP, wherein the set of multiple downlink and uplink BWP pairs or set identifiers includes the downlink and uplink BWP pair or set identifiers, and wherein receiving the DCI message is based on receiving an indication of the set of multiple downlink and uplink BWP pairs or set identifiers.

[0180] In some examples, the DCI message includes a group-common DCI message.

[0181] In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for receiving, via a DCI message, indications of respective starting and ending resource block indices associated with each of the second downlink subband and the second uplink subband, indications of respective resource block set indices associated with each of the second downlink subband and the second uplink subband, or both.

[0182] In some examples, the DCI message reception manager 630 may be configured to or otherwise support components for determining one or more bit field values ​​received via a DCI message to indicate a second downlink subband and a second uplink subband based on the DCI message not scheduling data at the UE, wherein the one or more bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0183] In some cases, the control signaling reception manager 625, the DCI message reception manager 630, the full-duplex communication manager 635, and the RRC message reception manager 640 can each be a processor (e.g., a transceiver processor, or a radio processor, or a transmitter processor, or a receiver processor) or at least a portion of a processor. The processor can be coupled to a memory and execute instructions stored in the memory that enable the processor to perform or facilitate the features of the control signaling reception manager 625, the DCI message reception manager 630, the full-duplex communication manager 635, and the RRC message reception manager 640 discussed herein.

[0184] Figure 7 A diagram of a system 700 including a device 705 supporting techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is shown. The device 705 may be an example of a device 405, a device 505, or a UE 115 as described herein, or include components thereof. The device 705 may communicate (e.g., wirelessly) with one or more network nodes 105, one or more UEs 115, or any combination thereof. The device 705 may include components for two-way voice and data communications, including components for sending and receiving communications, such as a communication manager 720, an input / output (I / O) controller 710, a transceiver 715, an antenna 725, a memory 730, a code 735, and a processor 740. These components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 745).

[0185] I / O controller 710 can manage input signals and output signals of device 705. I / O controller 710 can also manage peripheral devices that are not integrated into device 705. In some cases, I / O controller 710 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 710 can utilize an operating system, such as or another known operating system. Additionally or alternatively, I / O controller 710 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 710 may be implemented as part of a processor (such as processor 740). In some cases, a user may interact with device 705 via I / O controller 710 or via hardware components controlled by I / O controller 710.

[0186] In some cases, the device 705 may include a single antenna 725. However, in some other cases, the device 705 may have more than one antenna 725, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 715 may communicate bidirectionally via one or more antennas 725, a wired or wireless link, as described herein. For example, the transceiver 715 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 715 may also include a modem for: modulating packets; providing the modulated packets to one or more antennas 725 for transmission; and demodulating packets received from one or more antennas 725. The transceiver 715 or the transceiver 715 and the one or more antennas 725 may be examples of transmitters 415, transmitters 515, receivers 410, receivers 510, or any combination thereof or components thereof as described herein.

[0187] The memory 730 may include random access memory (RAM) and read-only memory (ROM). The memory 730 may store computer-readable, computer-executable code 735 including instructions that, when executed by the processor 740, cause the device 705 to perform various functions described herein. The code 735 may be stored in a non-transitory computer-readable medium such as a system memory or another type of memory. In some cases, the code 735 may not be directly executable by the processor 740, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some cases, the memory 730 may also include, among other things, a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0188] The processor 740 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 740 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 740. The processor 740 may be configured to execute computer-readable instructions stored in a memory (e.g., a memory 730) to enable the device 705 to perform various functions (e.g., functions or tasks that support techniques for downlink and uplink BWP and single DCI switching of subbands). For example, the device 705 or a component of the device 705 may include a processor 740 and a memory 730 coupled to or to the processor 740, and the processor 740 and the memory 730 are configured to perform various functions described herein.

[0189] For example, the communication manager 720 may be configured or otherwise support components for receiving control signaling from a network node, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication. The communication manager 720 may be configured or otherwise support components for receiving a DCI message from a network node, the DCI message indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both. The communication manager 720 may be configured or otherwise support components for performing full-duplex communication with a network node within a second downlink BWP and a second uplink BWP, or within a second downlink subband and a second uplink subband, or within both.

[0190] By including or configuring according to the example communication manager 720 as described herein, the device 705 can support a technique that enables the use of a single DCI message to dynamically switch both downlink BWP and uplink BWP (or downlink subband and uplink subband). In this regard, the techniques described herein can reduce the control signaling and network overhead associated with performing BWP or subband switching at a wireless device. By enabling both downlink BWP / subband and uplink BWP / subband to be dynamically switched via a single DCI message, the techniques described herein can reduce the time delay that UE 115 can perform BWP / subband switching to perform SBFD communication. In addition, by reducing the signaling required to perform downlink BWP / subband switching and uplink BWP / subband switching, the techniques described herein can reduce the power consumption at UE 115, thereby resulting in improved performance and battery life.

[0191] In some examples, the communication manager 720 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise cooperating with the transceiver 715, one or more antennas 725, or any combination thereof. Although the communication manager 720 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 720 may be supported or performed by the processor 740, the memory 730, the code 735, or any combination thereof. For example, the code 735 may include instructions that are executable by the processor 740 to cause the device 705 to perform various aspects of the techniques for downlink and uplink BWP and single DCI switching of subbands as described herein, or the processor 740 and the memory 730 may be otherwise configured to perform or support such operations.

[0192] Figure 8A block diagram 800 of a device 805 supporting techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is shown. The device 805 may be an example of aspects of the network node 105 as described herein. The device 805 may include a receiver 810, a transmitter 815, and a communication manager 820. The device 805 may also include one or more processors, a memory coupled to the one or more processors, and instructions stored in the memory that can be executed by the one or more processors to enable the one or more processors to perform the single DCI switching features discussed herein. Each of these components can communicate with each other (e.g., via one or more buses).

[0193] The receiver 810 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed to other components of the device 805. In some examples, the receiver 810 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, the receiver 810 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.

[0194] The transmitter 815 may provide a means for outputting (e.g., sending, providing, conveying, transmitting) information generated by other components of the device 805. For example, the transmitter 815 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 815 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 815 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 815 and the receiver 810 may be co-located in a transceiver, which may include a modem or be coupled to a modem.

[0195] The communication manager 820, the receiver 810, the transmitter 815, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of the techniques for downlink and uplink BWP and single DCI switching of subbands as described herein. For example, the communication manager 820, the receiver 810, the transmitter 815, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.

[0196] In some examples, the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof that is configured as or otherwise supports components for performing the functions described in the present disclosure. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0197] Additionally or alternatively, in some examples, the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting components for performing the functions described in the present disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.

[0198] In some examples, the communication manager 820 can be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise cooperating with the receiver 810, the transmitter 815, or both. For example, the communication manager 820 can receive information from the receiver 810, transmit information to the transmitter 815, or integrate with the receiver 810, the transmitter 815, or both to obtain information, output information, or perform various other operations as described herein.

[0199] For example, the communication manager 820 may be configured or otherwise support a component for sending control signaling to the UE, the control signaling indicating the first downlink BWP and the first uplink BWP, or the first downlink subband and the first uplink subband, or both, for performing SBFD communication or both. The communication manager 820 may be configured or otherwise support a component for sending a DCI message to the UE, the DCI message indicating a switch to the second downlink BWP and the second uplink BWP, or to the second downlink subband and the second uplink subband, or both. The communication manager 820 may be configured or otherwise support a component for performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0200] By including or configuring a communication manager 820 according to an example as described herein, the device 805 (e.g., a processor that controls or otherwise couples with the receiver 810, the transmitter 815, the communication manager 820, or a combination thereof) can support a technique that enables the use of a single DCI message to dynamically switch both the downlink BWP and the uplink BWP (or the downlink subband and the uplink subband). In this regard, the techniques described herein can reduce the control signaling and network overhead associated with performing BWP or subband switching at a wireless device. By enabling both the downlink BWP / subband and the uplink BWP / subband to be dynamically switched via a single DCI message, the techniques described herein can reduce the latency at which the UE 115 can perform BWP / subband switching for SBFD communications. In addition, by reducing the signaling required to perform downlink BWP / subband switching and uplink BWP / subband switching, the techniques described herein can reduce power consumption at the UE 115, resulting in improved performance and battery life.

[0201] Fig. 9 A block diagram 900 of a device 905 supporting techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is shown. The device 905 may be an example of aspects of the device 805 or network node 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. The device 905 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0202] The receiver 910 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed to other components of the device 905. In some examples, the receiver 910 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, the receiver 910 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.

[0203] The transmitter 915 may provide a means for outputting (e.g., sending, providing, conveying, transmitting) information generated by other components of the device 905. For example, the transmitter 915 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 915 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 915 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 915 and the receiver 910 may be co-located in a transceiver, which may include a modem or be coupled to a modem.

[0204] The device 905 or its various components may be examples of components for performing various aspects of the techniques for single DCI switching of downlink and uplink BWP and subbands as described herein. For example, the communication manager 920 may include a control signaling transmission manager 925, a DCI message transmission manager 930, a full-duplex communication manager 935, or any combination thereof. The communication manager 920 may be an example of various aspects of the communication manager 820 as described herein. In some examples, the communication manager 920 or its various components may be configured to use or otherwise cooperate with the receiver 910, the transmitter 915, or both to perform various operations (e.g., receive, obtain, monitor, output, send). For example, the communication manager 920 may receive information from the receiver 910, transmit information to the transmitter 915, or be integrated with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.

[0205] The control signaling sending manager 925 may be configured to or otherwise support components for sending control signaling to the UE, the control signaling indicating the first downlink BWP and the first uplink BWP, or the first downlink subband and the first uplink subband, or both, for performing SBFD communication or both. The DCI message sending manager 930 may be configured to or otherwise support components for sending a DCI message to the UE, the DCI message indicating switching to the second downlink BWP and the second uplink BWP, or switching to the second downlink subband and the second uplink subband, or both. The full-duplex communication manager 935 may be configured to or otherwise support components for performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0206] In some cases, the control signaling sending manager 925, the DCI message sending manager 930, and the full-duplex communication manager 935 may each be a processor (e.g., a transceiver processor, or a radio processor, or a transmitter processor, or a receiver processor) or at least a part of a processor. The processor may be coupled to a memory and execute instructions stored in the memory, which enable the processor to perform or facilitate the features of the control signaling sending manager 925, the DCI message sending manager 930, and the full-duplex communication manager 935 discussed herein. The transceiver processor may be co-located with the transceiver of the device and / or communicate with it (e.g., direct its operation). The radio processor may be co-located with the radio of the device (e.g., NR radio, LTE radio, Wi-Fi radio) and / or communicate with it (e.g., direct the operation of the radio). The transmitter processor may be co-located with the transmitter of the device and / or communicate with it (e.g., direct its operation). The receiver processor may be co-located with the receiver of the device and / or communicate with it (e.g., direct its operation).

[0207] Fig.10A block diagram 1000 of a communication manager 1020 supporting techniques for single DCI switching of downlink and uplink BWPs and subbands is shown according to one or more aspects of the present disclosure. The communication manager 1020 may be an example of aspects of the communication manager 820, the communication manager 920, or both as described herein. The communication manager 1020 or its various components may be examples of components for performing various aspects of the techniques for single DCI switching of downlink and uplink BWPs and subbands as described herein. For example, the communication manager 1020 may include a control signaling manager 1025, a DCI messaging manager 1030, a full-duplex communication manager 1035, an RRC messaging manager 1040, or any combination thereof. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses), which may include communication within a protocol layer of a protocol stack, communication associated with a logical channel of the protocol stack (e.g., between protocol layers of the protocol stack, within a device, component, or virtualized component associated with the network node 105, between devices, components, or virtualized components associated with the network node 105), or any combination thereof.

[0208] The control signaling sending manager 1025 may be configured to or otherwise support components for sending control signaling to the UE, the control signaling indicating the first downlink BWP and the first uplink BWP, or the first downlink subband and the first uplink subband, or both, for performing SBFD communication or both. The DCI message sending manager 1030 may be configured to or otherwise support components for sending a DCI message to the UE, the DCI message indicating switching to the second downlink BWP and the second uplink BWP, or switching to the second downlink subband and the second uplink subband, or both. The full-duplex communication manager 1035 may be configured to or otherwise support components for performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0209] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support means for sending one or more bit values ​​of the BWP indicator field indicating the second downlink BWP or the second uplink BWP via a DCI message. In some examples, the DCI message sending manager 1030 may be configured to or otherwise support means for sending one or more additional bit field values ​​indicating the other of the second downlink BWP or the second uplink BWP via a DCI message, wherein full-duplex communication is performed within the second downlink BWP and the second uplink BWP based on the one or more BWP indicator field values ​​and the one or more additional bit field values.

[0210] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support components for sending one or more additional bit field values ​​via a DCI message, wherein the one or more additional bit field values ​​indicate the other of the second downlink BWP or the second uplink BWP based on the DCI message not scheduling data at the UE. In some examples, the one or more additional bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0211] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support components for sending one or more bit field values ​​via a DCI message, where the one or more bit field values ​​indicate a second downlink BWP and a second uplink BWP based on the DCI message not scheduling data at the UE.

[0212] In some examples, the RRC message sending manager 1040 may be configured to or otherwise support components for sending an RRC message indicating a DCI format to a UE, the DCI format comprising one or more bits for switching a downlink BWP, a downlink subband, an uplink BWP, an uplink subband, or any combination thereof, wherein the DCI message is associated with the DCI format.

[0213] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support a component for sending a first bit value of a BWP indicator field indicating a second downlink BWP via a DCI message. In some examples, the DCI message sending manager 1030 may be configured to or otherwise support a component for sending a second bit value of a BWP indicator field indicating a second uplink BWP via a DCI message, wherein full-duplex communication is performed within the second downlink BWP and the second uplink BWP based on the first bit value and the second bit value of the BWP indicator field.

[0214] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support components for sending a first pair of bit values ​​of the BWP indicator field indicating a second downlink BWP via a DCI message. In some examples, the DCI message sending manager 1030 may be configured to or otherwise support components for sending a second pair of bit values ​​of the BWP indicator field indicating a second uplink BWP via a DCI message, wherein full-duplex communication is performed within the second downlink BWP and the second uplink BWP based on the first pair of bit values ​​and the second pair of bit values ​​of the BWP indicator field.

[0215] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support components for sending one or more bit values ​​of a BWP indicator field via a DCI message, the one or more bit values ​​indicating a downlink and uplink BWP pair or set identifier associated with a second downlink BWP and a second uplink BWP.

[0216] In some examples, the control signaling sending manager 1025 may be configured to or otherwise support components for sending an indication of a set of multiple downlink and uplink BWP pairs or set identifiers from the UE via control signaling, additional control signaling, or both, wherein each downlink and uplink BWP pair or set identifier is associated with a corresponding downlink BWP and a corresponding uplink BWP, wherein the set of multiple downlink and uplink BWP pairs or set identifiers includes the downlink and uplink BWP pair or set identifiers, and wherein sending the DCI message is based on sending the indication of the set of multiple downlink and uplink BWP pairs or set identifiers.

[0217] In some examples, the DCI message includes a group-common DCI message.

[0218] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support components for sending, via a DCI message, indications of respective starting and ending resource block indices associated with each of the second downlink subband and the second uplink subband, indications of respective resource block set indices associated with each of the second downlink subband and the second uplink subband, or both.

[0219] In some examples, the DCI message sending manager 1030 may be configured to or otherwise support components for sending one or more bit field values ​​via a DCI message, wherein the one or more bit field values ​​indicate a second downlink subband and a second uplink subband based on the DCI message not scheduling data at the UE, wherein the one or more bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0220] In some cases, the control signaling manager 1025, the DCI message manager 1030, the full-duplex communication manager 1035, and the RRC message manager 1040 can each be a processor (e.g., a transceiver processor, or a radio processor, or a transmitter processor, or a receiver processor) or at least a portion of a processor. The processor can be coupled to a memory and execute instructions stored in the memory, which enable the processor to perform or facilitate the features of the control signaling manager 1025, the DCI message manager 1030, the full-duplex communication manager 1035, and the RRC message manager 1040 discussed herein.

[0221] Fig.11 A diagram of a system 1100 including a device 1105 supporting techniques for single DCI switching of downlink and uplink BWP and subbands according to one or more aspects of the present disclosure is shown. The device 1105 may be an example of a device 805, a device 905, or a network node 105 as described herein or include components thereof. The device 1105 may communicate with one or more network nodes 105, one or more UEs 115, or any combination thereof, which may include communication through one or more wired interfaces, through one or more wireless interfaces, or any combination thereof. The device 1105 may include components that support output and acquisition of communications, such as a communication manager 1120, a transceiver 1110, an antenna 1115, a memory 1125, a code 1130, and a processor 1135. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1140).

[0222] The transceiver 1110 may support bidirectional communication via a wired link, a wireless link, or both as described herein. In some examples, the transceiver 1110 may include a wired transceiver and may communicate bidirectionally with another wired transceiver. Additionally or alternatively, in some examples, the transceiver 1110 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1105 may include one or more antennas 1115, which may be capable of sending or receiving wireless transmissions (e.g., concurrently). The transceiver 1110 may also include a modem for: modulating a signal; providing the modulated signal for transmission (e.g., via one or more antennas 1115, via a wired transmitter); receiving the modulated signal (e.g., from one or more antennas 1115, from a wired receiver); and demodulating the signal. In some implementations, the transceiver 1110 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1115 configured to support various receiving or obtaining operations, or one or more interfaces coupled to one or more antennas 1115 configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1110 may include or be configured to be coupled to one or more processors or memory components, which are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other output, or any combination thereof. In some implementations, the transceiver 1110, or the transceiver 1110 and one or more antennas 1115, or the transceiver 1110 and one or more antennas 1115 and one or more processors or memory components (e.g., processor 1135 or memory 1125 or both) may be included in a chip or chip assembly installed in the device 1105. In some examples, the transceiver may be operable to support communications via one or more communication links (eg, communication link 125, backhaul communication link 120, midhaul communication link 162, fronthaul communication link 168).

[0223] Memory 1125 may include RAM and ROM. Memory 1125 may store computer-readable, computer-executable code 1130 including instructions that, when executed by processor 1135, cause device 1105 to perform various functions described herein. Code 1130 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 1130 may not be directly executable by processor 1135, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1125 may also include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0224] The processor 1135 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA, a microcontroller, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1135 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1135. The processor 1135 may be configured to execute computer-readable instructions stored in a memory (e.g., a memory 1125) to enable the device 1105 to perform various functions (e.g., functions or tasks that support techniques for downlink and uplink BWP and single DCI switching of subbands). For example, the device 1105 or a component of the device 1105 may include a processor 1135 and a memory 1125 coupled to the processor 1135, the processor 1135 and the memory 1125 being configured to perform the various functions described herein. The processor 1135 may be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software such as an operating system, a virtual machine, or a container instance) that may host functions for performing the functions of the device 1105 (e.g., by executing code 1130). The processor 1135 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1105 (such as in the memory 1125). In some specific implementations, the processor 1135 may be a component of a processing system. A processing system may generally refer to a system or a series of machines or components that receive inputs and process these inputs to produce a set of outputs (which may be passed to, for example, other systems or components of the device 1105). For example, the processing system of the device 1105 may refer to a system including various other components or subcomponents of the device 1105 (such as the processor 1135, or the transceiver 1110, or the communication manager 1120, or other components or combinations of components of the device 1105). The processing system of device 1105 may interface with other components of device 1105, and may process information (such as input or signals) received from other components or output information to other components. For example, a chip or modem of device 1105 may include a processing system and one or more interfaces for outputting information or for obtaining information or both. One or more interfaces may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information or the same interface configured to output information and obtain information, as well as other specific implementations. In some specific implementations, one or more interfaces may refer to an interface between a processing system of a chip or modem and a transmitter, so that device 1105 can send information output from the chip or modem.Additionally or alternatively, in some implementations, one or more interfaces may refer to an interface between a processing system of a chip or modem and a receiver, such that the device 1105 may obtain information or signal input, and the information may be passed to the processing system. One of ordinary skill in the art will readily recognize that a first interface may also obtain information or signal input, and a second interface may also output information or signal output.

[0225] In some examples, bus 1140 may support communications of protocol layers (e.g., within a protocol layer) of a protocol stack. In some examples, bus 1140 may support communications associated with logical channels of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within components of device 1105, or communications performed between different components of device 1105 that may be co-located or may be located in different locations (e.g., where device 1105 may refer to a system in which one or more of communication manager 1120, transceiver 1110, memory 1125, code 1130, and processor 1135 may be located in one component of different components or divided between different components).

[0226] In some examples, the communication manager 1120 may manage aspects of communications with the core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communication manager 1120 may manage the delivery of data communications for client devices such as one or more UEs 115. In some examples, the communication manager 1120 may manage communications with other network nodes 105 and may include a controller or scheduler for controlling communications with the UE 115 in coordination with the other network nodes 105. In some examples, the communication manager 1120 may support an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between network nodes 105.

[0227] For example, the communication manager 1120 may be configured or otherwise support a component for sending control signaling to the UE, the control signaling indicating the first downlink BWP and the first uplink BWP, or the first downlink subband and the first uplink subband, or both, for performing SBFD communication or both. The communication manager 1120 may be configured or otherwise support a component for sending a DCI message to the UE, the DCI message indicating a switch to the second downlink BWP and the second uplink BWP, or to the second downlink subband and the second uplink subband, or both. The communication manager 1120 may be configured or otherwise support a component for performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0228] By including or configuring according to the example communication manager 1120 as described herein, the device 1105 can support the technology that enables the use of a single DCI message to dynamically switch both downlink BWP and uplink BWP (or downlink subband and uplink subband). In this regard, the technology described herein can reduce the control signaling and network overhead associated with performing BWP or subband switching at a wireless device. By enabling the dynamic switching of both downlink BWP / subband and uplink BWP / subband via a single DCI message, the technology described herein can reduce the delay that UE 115 can perform BWP / subband switching to perform SBFD communication. In addition, by reducing the signaling required to perform downlink BWP / subband switching and uplink BWP / subband switching, the technology described herein can reduce the power consumption at UE 115, thereby resulting in improved performance and battery life.

[0229] In some examples, the communication manager 1120 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the transceiver 1110, one or more antennas 1115 (e.g., where applicable), or any combination thereof. Although the communication manager 1120 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1120 may be supported or performed by the transceiver 1110, the processor 1135, the memory 1125, the code 1130, or any combination thereof. For example, the code 1130 may include instructions that are executable by the processor 1135 to cause the device 1105 to perform various aspects of the techniques for downlink and uplink BWP and single DCI switching of subbands as described herein, or the processor 1135 and the memory 1125 may be otherwise configured to perform or support such operations.

[0230] Fig.12 1 is a flow chart showing a method 1200 of supporting techniques for single DCI switching for downlink and uplink BWP and subbands according to one or more aspects of the present disclosure. The operations of the method 1200 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1200 may be implemented by a UE or components thereof as described in reference to Figures 1 to 7 The described UE 115 may be performed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.

[0231] At 1205, the method may include: receiving control signaling from a network node, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication. The operations of 1205 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1205 may be performed as described in reference to Figure 6 The described control signaling reception manager 625 is executed.

[0232] At 1210, the method may include: receiving a DCI message from a network node, the DCI message indicating a switch to a second downlink BWP and a second uplink BWP, or a switch to a second downlink subband and a second uplink subband, or both. The operations of 1210 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1210 may be performed as described in reference to Figure 6 The DCI message reception manager 630 described herein is performed.

[0233] At 1215, the method may include: performing full-duplex communication with the network node within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both. The operations of 1215 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1215 may be performed as described in reference to Figure 6 The full-duplex communication manager 635 is used to execute.

[0234] Fig.13 1300 is a flow chart showing a method 1300 of supporting techniques for single DCI switching for downlink and uplink BWP and subbands according to one or more aspects of the present disclosure. The operations of the method 1300 may be implemented by a network node or components thereof as described herein. For example, the operations of the method 1300 may be implemented by a network node or components thereof as described herein. Figures 1 to 3 and Figures 8 to 11 In some examples, the network node may execute an instruction set to control the functional elements of the network node to perform the functions. Additionally or alternatively, the network node may use dedicated hardware to perform various aspects of the described functions.

[0235] At 1305, the method may include: sending control signaling to the UE, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication or both. The operations of 1305 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed as described in reference to Fig.10 The described control signaling is performed by sending manager 1025.

[0236] At 1310, the method may include sending a DCI message to the UE, the DCI message indicating switching to a second downlink BWP and a second uplink BWP, or switching to a second downlink subband and a second uplink subband, or both. The operations of 1310 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed as described with reference to Fig.10 The described DCI message sending manager 1030 is performed.

[0237] At 1315, the method may include: performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both. The operations of 1315 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed as described in reference to Fig.10 The full-duplex communication manager 1035 is used to execute.

[0238] The following provides an overview of various aspects of the disclosure:

[0239] Aspect 1: A method for performing wireless communications at a UE, the method comprising: receiving control signaling from a network entity, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication; receiving a DCI message from the network entity, the DCI message indicating switching to a second downlink BWP and a second uplink BWP, or switching to a second downlink subband and a second uplink subband, or both; and performing full-duplex communication with the network entity within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0240] Aspect 2: According to the method of Aspect 1, the method also includes: receiving one or more BWP indicator field values ​​indicating the second downlink BWP or the second uplink BWP via the DCI message; and receiving one or more additional bit field values ​​indicating the other of the second downlink BWP or the second uplink BWP via the DCI message, wherein the full-duplex communication is performed within the second downlink BWP and the second uplink BWP at least in part based on the one or more BWP indicator field values ​​and the one or more additional bit field values.

[0241] Aspect 3: According to the method of Aspect 2, the method also includes: determining that the one or more additional bit field values ​​indicate the other of the second downlink BWP or the second uplink BWP based at least in part on the DCI message not scheduling data at the UE.

[0242] Aspect 4: The method according to any one of aspects 2 to 3, wherein the one or more additional bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0243] Aspect 5: According to the method described in any one of Aspects 1 to 4, the method also includes: determining one or more bit field values ​​within the DCI message to indicate the second downlink BWP and the second uplink BWP based at least in part on the fact that the DCI message does not schedule data at the UE.

[0244] Aspect 6: According to the method described in any one of Aspects 1 to 5, the method further includes: receiving an RRC message indicating a DCI format from the network entity, the DCI format including one or more reserved bits for switching downlink BWP, uplink BWP or both, wherein the DCI message is associated with the DCI format.

[0245] Aspect 7: According to the method described in any one of Aspects 1 to 6, the method further includes: receiving an RRC message indicating a DCI format from the network entity, the DCI format including one or more reserved bits for switching downlink subbands, uplink subbands, or both, wherein the DCI message is associated with the DCI format.

[0246] Aspect 8: According to the method described in any one of Aspects 1 to 7, the method further includes: receiving a first bit value of a BWP indicator field indicating the second downlink BWP via the DCI message; and receiving a second bit value of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein the full-duplex communication is performed within the second downlink BWP and the second uplink BWP based at least in part on the first bit value and the second bit value of the BWP indicator field.

[0247] Aspect 9: According to the method described in any one of Aspects 1 to 8, the method further includes: receiving a first pair of bit values ​​of the BWP indicator field indicating the second downlink BWP via the DCI message; and receiving a second pair of bit values ​​of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein the full-duplex communication is performed within the second downlink BWP and the second uplink BWP based at least in part on the first pair of bit values ​​and the second pair of bit values ​​of the BWP indicator field.

[0248] Aspect 10: According to the method described in any one of Aspects 1 to 9, the method also includes: receiving one or more bit values ​​of the BWP indicator field via the DCI message, and the one or more bit values ​​indicate a downlink and uplink BWP pair or set identifier associated with the second downlink BWP and the second uplink BWP.

[0249] Aspect 11: According to the method of Aspect 10, the method also includes: receiving an indication of multiple downlink and uplink BWP pairs or set identifiers from the network entity via the control signaling, additional control signaling, or both, wherein each downlink and uplink BWP pair or set identifier is associated with a corresponding downlink BWP and a corresponding uplink BWP, wherein the multiple downlink and uplink BWP pairs or set identifiers include the downlink and uplink BWP pairs or set identifiers, and wherein receiving the DCI message is at least partially based on receiving the indication of the multiple downlink and uplink BWP pairs or set identifiers.

[0250] Aspect 12: According to the method described in any one of Aspects 10 to 11, the method further includes: receiving an RRC message indicating a DCI format from the network node, the DCI format including one or more bits of the BWP indicator field for switching downlink and uplink BWP pairs or set identifiers, wherein the DCI message is associated with the DCI format.

[0251] Aspect 13: According to the method described in any one of Aspects 1 to 12, the method further includes: receiving a first pair of bit values ​​of the BWP indicator field via the DCI message, the first pair of bit values ​​indicating a first downlink and uplink BWP pair or set identifier associated with the second downlink BWP and the second uplink BWP; and receiving a second pair of bit values ​​of the BWP indicator field via the DCI message, the second pair of bit values ​​indicating a second downlink and uplink BWP pair or set identifier associated with half-duplex communication at the UE.

[0252] Aspect 14: The method according to any one of aspects 1 to 13, wherein the DCI message comprises a GC-DCI message.

[0253] Aspect 15: A method according to any one of Aspects 1 to 14, wherein the DCI message indicates switching to the second downlink subband and the second uplink subband, and the method further includes: receiving, via the DCI message, an indication of corresponding start and end resource block indices associated with each of the second downlink subband and the second uplink subband, an indication of corresponding resource block set indices associated with each of the second downlink subband and the second uplink subband, or both.

[0254] Aspect 16: According to the method described in any one of Aspects 1 to 15, the method also includes: determining one or more bit field values ​​received via the DCI message to indicate the second downlink subband and the second uplink subband at least in part based on the fact that the DCI message does not schedule data at the UE, wherein the one or more bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0255] Aspect 17: A method for performing wireless communications at a network entity, the method comprising: sending control signaling to a UE, the control signaling indicating a first downlink BWP and a first uplink BWP, or a first downlink subband and a first uplink subband, or both, for performing SBFD communication or both; sending a DCI message to the UE, the DCI message indicating switching to a second downlink BWP and a second uplink BWP, or switching to a second downlink subband and a second uplink subband, or both; and performing full-duplex communication with the UE within the second downlink BWP and the second uplink BWP, or within the second downlink subband and the second uplink subband, or within both.

[0256] Aspect 18: According to the method of Aspect 17, the method also includes: sending one or more BWP indicator field values ​​indicating the second downlink BWP or the second uplink BWP via the DCI message; and sending one or more additional bit field values ​​indicating the other of the second downlink BWP or the second uplink BWP via the DCI message, wherein the full-duplex communication is performed within the second downlink BWP and the second uplink BWP at least in part based on the one or more BWP indicator field values ​​and the one or more additional bit field values.

[0257] Aspect 19: According to the method according to Aspect 18, the method also includes: sending one or more additional bit field values ​​via the DCI message, wherein the one or more additional bit field values ​​indicate the other of the second downlink BWP or the second uplink BWP based at least in part on the fact that the DCI message does not schedule data at the UE.

[0258] Aspect 20: A method according to any one of aspects 18 to 19, wherein the one or more additional bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0259] Aspect 21: According to the method described in any one of Aspects 17 to 20, the method also includes: sending one or more bit field values ​​via the DCI message, wherein the one or more bit field values ​​indicate the second downlink BWP and the second uplink BWP at least in part based on the fact that the DCI message does not schedule data at the UE.

[0260] Aspect 22: According to the method described in any one of Aspects 17 to 21, the method further includes: sending an RRC message indicating a DCI format to the UE, the DCI format including one or more bits for switching downlink BWP, downlink subband, uplink BWP, uplink subband, or any combination thereof, wherein the DCI message is associated with the DCI format.

[0261] Aspect 23: According to the method described in any one of Aspects 17 to 22, the method further includes: sending a first bit value of the BWP indicator field indicating the second downlink BWP via the DCI message; and sending a second bit value of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein the full-duplex communication is performed within the second downlink BWP and the second uplink BWP based at least in part on the first bit value and the second bit value of the BWP indicator field.

[0262] Aspect 24: According to the method described in any one of Aspects 17 to 23, the method further includes: sending a first pair of bit values ​​of the BWP indicator field indicating the second downlink BWP via the DCI message; and sending a second pair of bit values ​​of the BWP indicator field indicating the second uplink BWP via the DCI message, wherein the full-duplex communication is performed within the second downlink BWP and the second uplink BWP based at least in part on the first pair of bit values ​​and the second pair of bit values ​​of the BWP indicator field.

[0263] Aspect 25: According to the method described in any one of Aspects 17 to 24, the method also includes: sending one or more bit values ​​of the BWP indicator field via the DCI message, and the one or more bit values ​​indicate the downlink and uplink BWP pair or set identifier associated with the second downlink BWP and the second uplink BWP.

[0264] Aspect 26: According to the method according to Aspect 25, the method also includes: sending an indication of multiple downlink and uplink BWP pairs or set identifiers from the UE via the control signaling, additional control signaling, or both, wherein each downlink and uplink BWP pair or set identifier is associated with a corresponding downlink BWP and a corresponding uplink BWP, wherein the multiple downlink and uplink BWP pairs or set identifiers include the downlink and uplink BWP pairs or set identifiers, and wherein sending the DCI message is at least partially based on sending the indication of the multiple downlink and uplink BWP pairs or set identifiers.

[0265] Aspect 27: The method according to any one of aspects 17 to 26, wherein the DCI message comprises a GC-DCI message.

[0266] Aspect 28: A method according to any one of Aspects 17 to 27, wherein the DCI message indicates switching to the second downlink subband and the second uplink subband, and the method further includes: sending, via the DCI message, an indication of corresponding start and end resource block indices associated with each of the second downlink subband and the second uplink subband, an indication of corresponding resource block set indices associated with each of the second downlink subband and the second uplink subband, or both.

[0267] Aspect 29: According to the method described in any one of Aspects 17 to 28, the method further includes: sending one or more bit field values ​​via the DCI message, wherein the one or more bit field values ​​indicate the second downlink subband and the second uplink subband at least in part based on the fact that the DCI message does not schedule data at the UE, wherein the one or more bit field values ​​include an MCS bit field, a TDRA bit field, or both.

[0268] Aspect 30: An apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 1 to 16.

[0269] Aspect 31: An apparatus comprising at least one component for performing the method according to any one of aspects 1 to 16.

[0270] Aspect 32: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 16.

[0271] Aspect 33: A device comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method according to any one of Aspects 17 to 29.

[0272] Aspect 34: An apparatus comprising at least one component for performing the method according to any one of aspects 17 to 29.

[0273] Aspect 35: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method according to any one of aspects 17 to 29.

[0274] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified and other implementations are possible. In addition, aspects from two or more methods may be combined.

[0275] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0276] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the specification may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0277] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed using a general purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0278] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as one or more instructions or codes of a computer-readable medium, or sent using one or more instructions or codes of a computer-readable medium. Other examples and specific implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these items. Features that implement the functions may also be physically located at different locations, including being distributed so that the various parts of the functions are implemented at different physical locations.

[0279] Computer-readable medium includes both non-transient computer storage medium and communication medium, and the communication medium includes any medium that promotes the transfer of computer programs from one location to another location.Non-transient storage medium can be any available medium that can be accessed by a general or special computer.By way of example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage device, disk storage device or other magnetic storage device, or can be used for carrying or storing desired program code components and any other non-transient medium that can be accessed by a general or special computer or a general or special processor in the form of an instruction or data structure.Moreover, any connection is appropriately referred to as computer-readable medium.For example, if software is sent from a website, a server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave, then coaxial cable, optical fiber cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of computer-readable medium. As used herein, disks and optical disks include CDs, laser disks, optical disks, digital versatile disks (DVDs), floppy disks, and Blu-ray disks. Disks can reproduce data magnetically, and optical disks can reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0280] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items followed by a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0281] The term "determining" encompasses a variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, database or other data structure), ascertaining, and the like. Furthermore, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Additionally, "determining" may include parsing, retrieving, selecting, choosing, establishing, and other such similar actions.

[0282] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label to distinguish between similar components. If only the first reference label is used in the specification, the description may apply to any of the similar components having the same first reference label, regardless of the second or other subsequent reference labels.

[0283] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "advantageous over other examples." The detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0284] The description herein is provided to enable one of ordinary skill in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receiving control signaling from a network node, the control signaling indicating a first downlink bandwidth portion and a first uplink bandwidth portion, or a first downlink sub-band and a first uplink sub-band, or both, for performing sub-band full-duplex communication; receiving a downlink control information message from the network node, the downlink control information message indicating a switch to a second downlink bandwidth portion and a second uplink bandwidth portion, or a switch to a second downlink sub-band and a second uplink sub-band, or both; as well as Full-duplex communication with the network node is performed within the second downlink bandwidth portion and the second uplink bandwidth portion, or within the second downlink sub-band and the second uplink sub-band, or within both.

2. The apparatus of claim 1 , wherein the instructions are further executable by the processor to cause the apparatus to: receiving, via the downlink control information message, one or more bandwidth part indicator field values ​​indicating the second downlink bandwidth part or the second uplink bandwidth part; and One or more additional bit field values ​​indicating the other of the second downlink bandwidth portion or the second uplink bandwidth portion are received via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth portion and the second uplink bandwidth portion based at least in part on the one or more bandwidth portion indicator field values ​​and the one or more additional bit field values.

3. The apparatus of claim 2, wherein the instructions are further executable by the processor to cause the apparatus to: Determining the one or more additional bit field values ​​is based at least in part on the downlink control information message not scheduling data at the UE to indicate the other of the second downlink bandwidth portion or the second uplink bandwidth portion.

4. The apparatus of claim 2, wherein the one or more additional bit field values ​​include a modulation and coding scheme bit field, a time domain resource allocation bit field, or both.

5. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: Determining one or more bit field values ​​within the downlink control information message to indicate the second downlink bandwidth portion and the second uplink bandwidth portion is based at least in part on the downlink control information message not scheduling data at the UE.

6. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: A radio resource control message is received from the network node indicating a downlink control information format, the downlink control information format including one or more reserved bits for switching downlink bandwidth portions, uplink bandwidth portions, or both, wherein the downlink control information message is associated with the downlink control information format.

7. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: A radio resource control message is received from the network node indicating a downlink control information format, the downlink control information format including one or more reserved bits for switching downlink subbands, uplink subbands, or both, wherein the downlink control information message is associated with the downlink control information format.

8. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: receiving, via the downlink control information message, a first bit value of a bandwidth part indicator field indicating the second downlink bandwidth part; and A second bit value of the bandwidth portion indicator field indicating the second uplink bandwidth portion is received via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth portion and the second uplink bandwidth portion based at least in part on the first bit value and the second bit value of the bandwidth portion indicator field.

9. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: receiving, via the downlink control information message, a first pair of bit values ​​of a bandwidth part indicator field indicating the second downlink bandwidth part; and A second pair of bit values ​​of the bandwidth portion indicator field indicating the second uplink bandwidth portion is received via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth portion and the second uplink bandwidth portion based at least in part on the first pair of bit values ​​and the second pair of bit values ​​of the bandwidth portion indicator field.

10. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: One or more bit values ​​of a bandwidth part indicator field are received via the downlink control information message, the one or more bit values ​​indicating a downlink and uplink bandwidth part pair or set identifier associated with the second downlink bandwidth part and the second uplink bandwidth part.

11. The apparatus of claim 10, wherein the instructions are further executable by the processor to cause the apparatus to: An indication of a plurality of downlink and uplink bandwidth portion pairs or set identifiers is received from the network node via the control signaling, additional control signaling, or both, wherein each downlink and uplink bandwidth portion pair or set identifier is associated with a respective downlink bandwidth portion and a respective uplink bandwidth portion, wherein the plurality of downlink and uplink bandwidth portion pairs or set identifiers include the downlink and uplink bandwidth portion pair or set identifier, and wherein receiving the downlink control information message is based at least in part on receiving the indication of the plurality of downlink and uplink bandwidth portion pairs or set identifiers.

12. The apparatus of claim 10, wherein the instructions are further executable by the processor to cause the apparatus to: A radio resource control message is received from the network node indicating a downlink control information format, the downlink control information format including one or more bits of the bandwidth part indicator field for switching downlink and uplink bandwidth part pairs or sets of identifiers, wherein the downlink control information message is associated with the downlink control information format.

13. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: receiving, via the downlink control information message, a first pair of bit values ​​for a bandwidth part indicator field, the first pair of bit values ​​indicating a first downlink and uplink bandwidth part pair or set identifier associated with the second downlink bandwidth part and the second uplink bandwidth part; and A second pair of bit values ​​for the bandwidth portion indicator field is received via the downlink control information message, the second pair of bit values ​​indicating a second downlink and uplink bandwidth portion pair or set identifier associated with half-duplex communications at the UE.

14. The apparatus of claim 1, wherein the downlink control information message comprises a group common downlink control information message.

15. The apparatus of claim 1, wherein the downlink control information message indicates switching to the second downlink sub-band and the second uplink sub-band, wherein the instructions are further executable by the processor to cause the apparatus to: An indication of respective starting and ending resource block indices associated with each of the second downlink subband and the second uplink subband, an indication of respective resource block set indices associated with each of the second downlink subband and the second uplink subband, or both, is received via the downlink control information message.

16. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: Determining one or more bit field values ​​received via the downlink control information message to indicate the second downlink subband and the second uplink subband based at least in part on the downlink control information message not scheduling data at the UE, wherein the one or more bit field values ​​include a modulation and coding scheme bit field, a time domain resource allocation bit field, or both.

17. An apparatus for wireless communication at a network node, the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: sending control signaling to a user equipment (UE), the control signaling indicating a first downlink bandwidth portion and a first uplink bandwidth portion, or a first downlink subband and a first uplink subband, or both, for performing sub-band full-duplex communication, or both; sending a downlink control information message to the UE, the downlink control information message indicating a switch to a second downlink bandwidth portion and a second uplink bandwidth portion, or a switch to a second downlink subband and a second uplink subband, or both; as well as Full-duplex communication with the UE is performed within the second downlink bandwidth portion and the second uplink bandwidth portion, or within the second downlink sub-band and the second uplink sub-band, or within both.

18. The apparatus of claim 17, wherein the instructions are further executable by the processor to cause the apparatus to: transmitting, via the downlink control information message, one or more bandwidth part indicator field values ​​indicating the second downlink bandwidth part or the second uplink bandwidth part; and One or more additional bit field values ​​indicating the other of the second downlink bandwidth part or the second uplink bandwidth part are sent via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth part and the second uplink bandwidth part based at least in part on the one or more bandwidth part indicator field values ​​and the one or more additional bit field values.

19. The apparatus of claim 18, wherein the instructions are further executable by the processor to cause the apparatus to: One or more additional bit field values ​​are sent via the downlink control information message, wherein the one or more additional bit field values ​​indicate the other of the second downlink bandwidth portion or the second uplink bandwidth portion based at least in part on the downlink control information message not scheduling data at the UE.

20. The apparatus of claim 18, wherein the one or more additional bit field values ​​include a modulation and coding scheme bit field, a time domain resource allocation bit field, or both.

21. The apparatus of claim 17, wherein the instructions are further executable by the processor to cause the apparatus to: One or more bit field values ​​are sent via the downlink control information message, wherein the one or more bit field values ​​indicate the second downlink bandwidth portion and the second uplink bandwidth portion based at least in part on the downlink control information message not scheduling data at the UE.

22. The apparatus of claim 17, wherein the downlink control information message indicates switching to the second downlink subband and the second uplink subband, wherein the instructions are further executable by the processor to cause the apparatus to: sending a radio resource control message indicating a downlink control information format to the UE, the downlink control information format comprising one or more bits for switching a downlink bandwidth part, a downlink subband, an uplink bandwidth part, an uplink subband, or any combination thereof, wherein the downlink control information message is associated with the downlink control information format.

23. The apparatus of claim 17, wherein the instructions are further executable by the processor to cause the apparatus to: transmitting, via the downlink control information message, a first bit value of a bandwidth part indicator field indicating the second downlink bandwidth part; and A second bit value of the bandwidth portion indicator field indicating the second uplink bandwidth portion is sent via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth portion and the second uplink bandwidth portion based at least in part on the first bit value and the second bit value of the bandwidth portion indicator field.

24. The apparatus of claim 17, wherein the instructions are further executable by the processor to cause the apparatus to: transmitting, via the downlink control information message, a first pair of bit values ​​of a bandwidth part indicator field indicating the second downlink bandwidth part; and A second pair of bit values ​​of the bandwidth portion indicator field indicating the second uplink bandwidth portion is sent via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth portion and the second uplink bandwidth portion based at least in part on the first pair of bit values ​​and the second pair of bit values ​​of the bandwidth portion indicator field.

25. The apparatus of claim 17, wherein the instructions are further executable by the processor to cause the apparatus to: One or more bit values ​​of a bandwidth part indicator field are transmitted via the downlink control information message, the one or more bit values ​​indicating a downlink and uplink bandwidth part pair or set identifier associated with the second downlink bandwidth part and the second uplink bandwidth part.

26. The apparatus of claim 25, wherein the instructions are further executable by the processor to cause the apparatus to: An indication of a plurality of downlink and uplink bandwidth portion pairs or set identifiers is sent from the UE via the control signaling, additional control signaling, or both, wherein each downlink and uplink bandwidth portion pair or set identifier is associated with a corresponding downlink bandwidth portion and a corresponding uplink bandwidth portion, wherein the plurality of downlink and uplink bandwidth portion pairs or set identifiers include the downlink and uplink bandwidth portion pair or set identifier, and wherein sending the downlink control information message is based at least in part on sending the indication of the plurality of downlink and uplink bandwidth portion pairs or set identifiers.

27. A method for wireless communication at a user equipment (UE), the method comprising: receiving control signaling from a network node, the control signaling indicating a first downlink bandwidth portion and a first uplink bandwidth portion, or a first downlink sub-band and a first uplink sub-band, or both, for performing sub-band full-duplex communication; receiving a downlink control information message from the network node, the downlink control information message indicating a switch to a second downlink bandwidth portion and a second uplink bandwidth portion, or a switch to a second downlink sub-band and a second uplink sub-band, or both; as well as Full-duplex communication with the network node is performed within the second downlink bandwidth portion and the second uplink bandwidth portion, or within the second downlink sub-band and the second uplink sub-band, or within both.

28. The method according to claim 27, further comprising: receiving, via the downlink control information message, one or more bandwidth part indicator field values ​​indicating the second downlink bandwidth part or the second uplink bandwidth part; as well as One or more additional bit field values ​​indicating the other of the second downlink bandwidth portion or the second uplink bandwidth portion are received via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth portion and the second uplink bandwidth portion based at least in part on the one or more bandwidth portion indicator field values ​​and the one or more additional bit field values.

29. A method for wireless communication at a network node, the method comprising: sending control signaling to a user equipment (UE), the control signaling indicating a first downlink bandwidth portion and a first uplink bandwidth portion, or a first downlink subband and a first uplink subband, or both, for performing sub-band full-duplex communication, or both; sending a downlink control information message to the UE, the downlink control information message indicating a switch to a second downlink bandwidth portion and a second uplink bandwidth portion, or a switch to a second downlink subband and a second uplink subband, or both; as well as Full-duplex communication with the UE is performed within the second downlink bandwidth portion and the second uplink bandwidth portion, or within the second downlink sub-band and the second uplink sub-band, or within both.

30. The method according to claim 29, further comprising: sending, via the downlink control information message, one or more bandwidth part indicator field values ​​indicating the second downlink bandwidth part or the second uplink bandwidth part; as well as One or more additional bit field values ​​indicating the other of the second downlink bandwidth part or the second uplink bandwidth part are sent via the downlink control information message, wherein the full-duplex communication is performed within the second downlink bandwidth part and the second uplink bandwidth part based at least in part on the one or more bandwidth part indicator field values ​​and the one or more additional bit field values.

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