WO2024187850A1

WO2024187850A1 - Staggered subband for full duplex

Info

Publication number: WO2024187850A1
Application number: PCT/CN2023/137537
Authority: WO
Inventors: Yuantao Zhang; Ruixiang MA; Zhi YAN; Hongmei Liu
Original assignee: Lenovo (Beijing) Limited
Priority date: 2023-12-08
Filing date: 2023-12-08
Publication date: 2024-09-19

Abstract

Various aspects of the present disclosure relate to full duplex (FD) communications. In an aspect, a user equipment receives a configuration for a subband. Based on the configuration, the user equipment determines determine a staggered subband. The user equipment then determines physical resources for a signal or a channel in the staggered subband. In this way, the self-interference is randomized and the frequency diversity in FD system is enhanced. Therefore, the performance of the signal/channel transmitted in the FD subband is improved.

Description

STAGGERED SUBBAND FOR FULL DUPLEX

The present disclosure relates to wireless communications, and more specifically to full duplex (FD) communications.

BACKGROUND

A wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. Each network communication devices, such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .

In wireless communication system, the term “duplex” means bidirectional communication between two devices, where the transmissions over the link in each direction may take place at the same time (i.e., full duplex) or mutual exclusive time (i.e., half duplex) . In legacy full duplex transceiver, different carriers are employed for each link direction. Advanced full duplex modes enable simultaneous transmission and reception by the same device on a same carrier, which have potential to double the link throughput. However, simultaneous downlink (DL) and uplink (UL) in a same carrier may incur self-interference. Thus there are still some issues for full duplex to be addressed.

SUMMARY

The present disclosure relates to methods, apparatuses, and systems that support a staggered subband for full duplex.

Some implementations of the method and devices described herein include, receiving, via the transceiver and from a base station, a configuration for a subband; determining a staggered subband based on the configuration; and determining physical resources for a signal or a channel in the staggered subband. In this way, the self-interference is randomized and the frequency diversity is enhanced.

Some implementations of the method and devices described herein may further include determining the staggered subband by determining a virtual subband based on the configuration; and mapping the virtual subband to the staggered subband based on at least one of: resource staggering in time domain, resource staggering in frequency domain, or resource staggering in time domain and frequency domain.

Some implementations of the method and devices described herein may further include determining the physical resources for the signal or the channel by determining a set of consecutive virtual RBs (VRBs) for the signal or the channel within the virtual subband; mapping the set of consecutive VRBs to one of non-consecutive VRBs or consecutive VRBs within the virtual subband; and mapping the one of non-consecutive VRBs or consecutive VRBs to PRBs within the staggered subband.

Some implementations of the method and devices described herein may further include determining at least one demodulation reference signal (DMRS) symbol per segment of a physical uplink shared channel (PUSCH) in the case that the PUSCH is transmitted across parts of the staggered subband, wherein a segment of the PUSCH is transmitted in a part of the staggered subband.

Some implementations of the method and devices described herein may further include determining the at least one DMRS symbol by determining the at least one DMRS symbol based on a number of symbols of the segment, a PUSCH mapping type of the segment, and a start symbol of the segment.

In some implementations of the method and devices described herein, the configuration may comprise: a start symbol of the subband; a number of symbols of the subband; a start resource block (RB) of the subband; and a number of RBs of the subband.

In some implementations of the method and devices described herein, the configuration may further comprise one of the following: an indication of whether to use resource staggering for the subband; or an indication of which type of resource staggering is used to determine the staggered subband. In some implementations of the method and devices described herein, the resource staggering in time domain may comprise intra-slot resource staggering or inter-slot resource staggering.

In some implementations of the method and devices described herein, the configuration for the intra-slot resource staggering may further comprise one of: a number of symbols of a first part of the staggered subband, or a RB offset for determining a second part of the staggered subband relative to a start RB of the first part; the configuration for the inter-slot resource staggering may further comprise: a RB offset for determining the second part relative to the start RB of the first part; the configuration for the resource staggering in frequency domain may further comprise one of: a RB offset for determining the second part relative to the start RB of the first part, or a number of RBs per part of the staggered subband; or the configuration for the resource staggering in time domain and frequency domain may further comprise one of: a number of symbols of a first part, a number of RBs per part of the staggered subband, a first RB offset, or a second RB offset.

In some implementations of the method and devices described herein, one of the first part or the second part may comprise a set of consecutive physical RBs (PRBs) . In some implementations of the method and devices described herein, the set of consecutive VRBs may be mapped to the consecutive VRBs in the case that non-interleaved mapping is configured; or the set of consecutive VRBs may be mapped to the non-consecutive VRBs in the case that interleaved mapping is configured.

In some implementations of the method and devices described herein, the set of consecutive VRBs may be mapped to the non-consecutive VRBs in the case that the non-interleaved mapping and frequency hopping are configured.

In some implementations of the method and devices described herein, the frequency hopping may comprise intra-slot frequency hopping or inter-slot frequency hopping; or the configuration may indicate one of the intra-slot frequency hopping or the inter-slot frequency hopping.

In some implementations of the method and devices described herein, in that case that the VRBs are mapped to PRBs across parts of the staggered subband, the configuration for the intra-slot frequency hopping may comprise one of: a start RB of a first hop of the non-consecutive VRBs, or a RB offset for a second hop relative to the start RB; in that case that the VRBs are mapped to PRBs within a part of the staggered subband, the configuration for the intra-slot frequency hopping may comprise one of: a start RB of the first hop, or a RB offset for the second hop relative to the start RB; or the configuration for the inter-slot frequency hopping may comprise one of: an indication that the first hop corresponds to a transmission in even slots and the second hop corresponds to a transmission in odd slots, a start RB of the first hop, or a RB offset for the second hop relative to the start RB.

In some implementations of the method and devices described herein, the set of consecutive VRBs may be mapped to non-consecutive VRBs per resource part of the staggered subband in the case that interleaved mapping is configured; or each of the first hop and the second hop may be transmitted in a part of the staggered subband in the case that the non-interleaved mapping and the frequency hopping are configured.

In some implementations of the method and devices described herein, the type of the resource staggering may be configured per slot; or a RB offset may be configured per slot.

Some implementations of the method and devices described herein include, transmitting, via the transceiver and to a user equipment, a configuration for a subband; determining a staggered subband based on the configuration; and determining physical resources for a signal or a channel in the staggered subband. In this way, the self-interference is randomized and the frequency diversity is enhanced.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A illustrates an example of a wireless communications system that supports a staggered subband for full duplex in accordance with aspects of the present disclosure.

FIG. 1B illustrates an example of full duplex with non-overlapped DL and UL resources associated with aspects of the present disclosure.

FIG. 1C illustrates an example of full duplex with overlapped DL and UL resources associated with aspects of the present disclosure.

FIG. 1D illustrates another example of full duplex with overlapped DL and UL resources associated with aspects of the present disclosure.

FIG. 2 illustrates an example signaling chart illustrating an example process that supports a staggered subband for full duplex in accordance with aspects of the present disclosure.

FIG. 3A illustrates an example of a virtual subband in accordance with aspects of the present disclosure.

FIG. 3B illustrates an example of resource staggering in accordance with aspects of the present disclosure.

FIG. 3C illustrates another example of resource staggering in accordance with aspects of the present disclosure.

FIG. 3D illustrates yet another example of resource staggering in accordance with aspects of the present disclosure.

FIG. 4 illustrates an example flowchart in accordance with aspects of the present disclosure.

FIGS. 5A-5C illustrate an example process in accordance with aspects of the present disclosure.

FIGS. 6A-6C illustrate another example process in accordance with aspects of the present disclosure.

FIGS. 7 and 8 illustrate examples of devices that support a staggered subband for full duplex in accordance with aspects of the present disclosure.

FIGS. 9 and 10 illustrate examples of processors that support a staggered subband for full duplex in accordance with aspects of the present disclosure.

FIG. 11 illustrates a flowchart of a method that supports store and forward operations in accordance with aspects of the present disclosure.

FIG. 12 illustrates a flowchart of a method that supports store and forward operations in accordance with aspects of the present disclosure.

Throughout the drawings, the same or similar reference numerals represent the same or similar elements.

DETAILED DESCRIPTION

Principles of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein may be implemented in various manners other than the ones described below.

In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.

References in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It shall be understood that although the terms “first” and “second” or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and/or” includes any and all combinations of one or more of the listed terms.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and/or “including” , when used herein, specify the presence of stated features, elements, and/or components etc., but do not preclude the presence or addition of one or more other features, elements, components and/or combinations thereof.

As used herein, the term “communication network” refers to a network following any suitable communication standards, such as, 5G new radio (NR) , Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) , and so on. Further, the communications between a user equipment and a network device in the communication network may be performed according to any suitable generation communication protocols, including but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will also be future type communication technologies and systems in which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned systems.

As used herein, the term “network device” generally refers to a node in a communication network via which a user equipment can access the communication network and receive services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , a radio access network (RAN) node, an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , an infrastructure device for a V2X (vehicle-to-everything) communication, a transmission and reception point (TRP) , a reception point (RP) , a remote radio head (RRH) , a relay, an integrated access and backhaul (IAB) node, a low power node such as a femto BS, a pico BS, and so forth, depending on the applied terminology and technology. The network device may further refer to a network function (NF) in the core network, for example, a SMF, an AMF, a PCF, a UPF or devices with same function in future network architectures, and so forth.

As used herein, the term “user equipment (UE) ” generally refers to any end device that may be capable of wireless communications. By way of example rather than a limitation, a user equipment may also be referred to as a communication device, a terminal device, an end user device, a subscriber station (SS) , an unmanned aerial vehicle (UAV) , a portable subscriber station, a mobile station (MS) , or an access terminal (AT) . The user equipment may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet, a wearable user equipment, a personal digital assistant (PDA) , a portable computer, a desktop computer, an image capture user equipment such as a digital camera, a gaming user equipment, a music storage and playback appliance, a vehicle-mounted wireless user equipment, a wireless endpoint, a mobile station, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , a USB dongle, a smart device, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device (for example, a remote surgery device) , an industrial device (for example, a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/or industrial wireless networks, and the like. In the following description, the terms: “user equipment, ” “communication device, ” “terminal, ” “user equipment” and “UE, ” may be used interchangeably.

As used herein, the term “duplex” refers to bidirectional communication between two devices, where the transmissions over the link in each direction may take place at the same time (i.e., full duplex) or mutual exclusive time (i.e., half duplex) .

FIG. 1A illustrates an example of a wireless communications system 100 that supports store and forward operations in accordance with aspects of the present disclosure. The wireless communications system 100 may include one or more network entities 102 (also referred to as network equipment (NE) ) , one or more UEs 104, a core network 106, and a packet data network 108. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-Advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a 5G network, such as an NR network. In other implementations, the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.

The one or more network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a radio access network (RAN) , a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. A network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection. For example, a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.

A network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112. For example, a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102. Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples. In some implementations, a UE 104 may be stationary in the wireless communications system 100. In some other implementations, a UE 104 may be mobile in the wireless communications system 100.

The one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in FIG. 1A. A UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in FIG. 1A. Additionally, or alternatively, a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.

A UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link 114 may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.

A network entity 102 may support communications with the core network 106, or with another network entity 102, or both. For example, a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) . In some implementations, the network entities 102 may communicate with each other directly (e.g., between the network entities 102) . In some other implementations, the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) . In some implementations, one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .

In some implementations, a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, 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, a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN Intelligent Controller (RIC) (e.g., a Near-Real Time RIC (Near-RT RIC) , a Non-Real Time RIC (Non-RT RIC) ) , a Service Management and Orchestration (SMO) system, or any combination thereof.

An RU 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 transmission reception point (TRP) . One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) . In some implementations, one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .

Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU. For example, a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack. In some implementations, the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., Radio Resource Control (RRC) , service data adaption protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) . The CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an 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 a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack. The DU may support one or multiple different cells (e.g., via one or more RUs) . In some implementations, a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .

A CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u) , and a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface) . In some implementations, a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.

The core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.

The core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The packet data network 108 may include an application server 118. In some implementations, one or more UEs 104 may communicate with the application server 118. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102. The core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .

In the wireless communications system 100, the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) . In some implementations, the network entities 102 and the UEs 104 may support different resource structures. For example, the network entities 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the network entities 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) . The network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.

One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.

A time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.

Additionally or alternatively, a time interval of a resource (e.g., a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) . In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., μ=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.

In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) . In some implementations, FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.

FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g., μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g., μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., μ=3) , which includes 120 kHz subcarrier spacing.

In legacy full duplex transceiver, different carriers are employed for each link direction. Advanced full duplex modes enable simultaneous transmission and reception by the same device on a same carrier, which have potential to double the link throughput. Besides, transmission latency is also reduced due to bidirectional transmission simultaneously.

However, simultaneous DL and UL in a same carrier may incur self-interference. For full duplex employed in BS side, the DL transmission may interfere the UL reception, while for full duplex in the UE side, the UL transmission may interfere DL reception.

In practice, it is more feasible to realize full duplex in BS side than in UE side because more room is available in BS side and Tx/Rx antenna branches can be separated for self-interference mitigation. Besides, more advanced transceiver can be adopted in the BS side, which is fundamental for self-interference cancellation.

For full duplex in BS side, depending on BS capability on self-interference cancellation, non-overlapped or overlapped PHY resources for DL signals and UL signals can be allocated. For example, a non-overlapped UL subband can be allocated in a DL slot to enhance the UL performance, which is known as subBand full duplex (SBFD) .

FIG. 1B illustrates an example of full duplex with non-overlapped DL and UL resources associated with aspects of the present disclosure. As shown in FIG. 1B, a UL subband is allocated in two DL slots. UL signals/channels can be scheduled in the UL subband and DL signals/channels can be scheduled in the DL subband.

FIG. 1C illustrates an example of full duplex with overlapped DL and UL resources associated with aspects of the present disclosure. As shown in FIG. 1C, a subband is allocated in two DL slots. Both DL signals/channel and UL signals/channel can be scheduled in the allocated subband, i.e., overlapped subband.

FIG. 1D illustrates another example of full duplex with overlapped DL and UL resources associated with aspects of the present disclosure. As shown in FIG. 1D, a subband is allocated in two UL slots. Both DL signals/channel and UL signals/channel can be scheduled in the allocated subband, i.e., overlapped subband.

In future full duplex system such as in 5G future releases and in 6G, it is expected that overlapped subband in the DL slots/symbols or overlapped/non-overlapped subband in the UL slots/symbols may get the chance in standard. These scenarios may target for different traffic status (e.g., DL heavy or UL heavy) and are corresponding to different BS capability (e.g., supporting overlapped/non-overlapped DL and UL transmission) .

From gNB side, the self-interference is different for resource non-overlapped FD and resource overlapped FD. For resource non-overlapped FD, the interference is mostly inter-subband interference. In other words, the UL channels/signals received in the UL subband is interfered by the DL transmission in the adjacent resources of DL subband. For resource overlapped full duplex, beside inter-subband interference, there is also intra-subband interference. In other words, the UL channels/signals in a subband might be interfered by the DL transmission in the same subband. It is noted here the subband contains a set of resource blocks in frequency domain and it is configured over a set of symbols or slots in time domain. The subband may also refer to a bandwidth part BWP) or any other terminologies that have same kind structure in frequency domain and time domain.

In the scenarios of subband allocation in FIGS 1B-1D, there are some issues to be addressed. For both non-overlapped and overlapped subband allocation, the frequency diversity gains of the UL transmission (obtained from frequency hopping) in the UL subband will be low due to typically low size of UL subband in frequency domain. For overlapped subband allocation where a subband is allocated in a UL slot, due to self-interference, the performance of a UL signal/channel might be deteriorated if the UL signal/channel is transmitted in the subband. For non-overlapped subband allocation, a UL signal/channel may suffer inter-subband interference for one hop, considering that one hop is transmitted in the low frequency edge and the other hop is transmitted in the high frequency edge. The resources for at least one hop are nearby the DL subband and suffer the interference.

In view of the above discussions, some embodiments of the present disclosure provide a solution for a staggered subband for full duplex. In one aspect of the solution of the present disclosure, a user equipment receives a configuration for a subband. Based on the configuration, the user equipment determines a staggered subband. The user equipment then determines physical resources for a signal or a channel in the staggered subband. The signal or channel may be a data signal or a data channel, a control signal or a control channel, a reference signal, etc. In this way, the self-interference is randomized and the frequency diversity in FD system is enhanced. Therefore, the performance of the signal/channel transmitted in the FD subband is improved. Principles and implementations of embodiments of the present disclosure will be described in detail below with reference to FIGS. 2-12.

FIG. 2 illustrates a signaling chart illustrating an example process 200 in accordance with aspects of the present disclosure. The process 200 may involve the user equipment 201 and the base station 202. It would be appreciated that although the process 200 is applied in the communication environment 100 of FIG. 1A, this process may be likewise applied to other communication scenarios with similar issues.

In the process 200, the base station 202 transmits 205 a configuration for a subband to the user equipment 201. On the other side of the communication, the user equipment 201 receives 210 the configuration 207 from the base station 202.

In some embodiments, the configuration may comprise a start symbol of the subband, a number of symbols of the subband, a start resource block (RB) of the subband, a number of RBs of the subband, or any combination of two or more of the above-mentioned items. For example, in a configuration for a FD, a starting OFDM symbol, e.g., startSymbol, and the number of symbols, e.g., nSymbolsSubband, may be configured in time domain. In addition, a starting RB, e.g., startRb, and the number of RBs, e.g., nRbSubband, may be configured in frequency domain.

Continuing with reference to FIG. 2, the user equipment 201 determines 215 a staggered subband based on the configuration 207. Correspondingly, the base station 202 determines 220 a staggered subband based on the configuration 207. A staggered subband refers to the resources of the subband are staggered and the resources of the staggered subband are non-consecutive. It is to be understood that other wording such as “interlaced” , “interleaved” , “distributed” may replace “staggered” .

Alternatively or additionally, in order to determine the staggered subband, the user equipment 201 may determine a virtual subband based on the configuration. The user equipment 201 then may map the virtual subband to a staggered subband by resource staggering in time domain, resource staggering in frequency domain, resource staggering in both time domain and frequency domain, or any combination of two or more of the above-mentioned items. Additionally, the resource staggering in time domain may comprise intra-slot resource staggering or inter-slot resource staggering. Resource staggering for the FD subband corresponds to determining the physical subband which is non-consecutive from the virtual subband which is consecutive.

For instance, according to the configuration 207, a virtual subband containing consecutive virtual resources may be determined. In time domain, the virtual subband may start from the starting OFDM symbol, e.g., startSymbol, and contain nSymbolsSubband consecutive OFDM symbols. In frequency domain, the virtual subband may start from the starting RB, e.g., startRb, and contain nRbSubband consecutive RBs.

For time domain resource staggering, the staggered subband has same or different starting RBs and contains a set of nRbSubband consecutive RBs in different time units, e.g., different set of consecutive OFDM symbols. The different time units may or may not be consecutive in time domain. One can observe that if different time units are consecutive in time domain, such kind of resource staggering will actually happen in frequency domain. Here we use time domain resource staggering to include both consecutive and non-consecutive cases and to differentiate this case with the frequency domain resource staggering in this invention. For frequency domain resource staggering, the staggered subband has a same starting RB and contains a set of nRbSubband non-consecutive RBs in different time units. In an example, the staggered subband in frequency domain may contain multiple frequency units, and each frequency unit contains a set of consecutive RBs. For Time and frequency domain resource staggering, the staggered subband has different starting RBs and contains non-consecutive nRbSubband RBs in different time units.

On the other side of the communication, in order to determine the staggered subband, the base station 202 may determine a virtual subband based on the configuration. The base station 202 then may map the virtual subband to a staggered subband by resource staggering in time domain, resource staggering in frequency domain, resource staggering in time domain and frequency domain, or any combination of two or more of the above-mentioned items.

In addition, the configuration may further comprise an indication of whether to use resource staggering for the subband, an indication of which type of resource staggering is used to determine the staggered subband, or a combination of the above-mentioned items. For example, whether to use resource staggering for the FD subband, or which kind of resource staggering is used may be up to the configuration from BS. In addition, the configuration may be defined for a UL subband and a DL subband separately. Since the UL transmission is mostly in a frequency consecutive manner due to low peak to average power ratio (PAPR) requirement, the UL subband may support time domain resource staggering. The DL subband may support one resource staggering or up to all the three kind of resource staggering. If only one kind of resource staggering is supported, the BS may configure whether to use resource staggering for the FD subband.

Alternatively, the configuration may associate with the resource staggering in time domain, resource staggering in frequency domain, resource staggering in time domain and frequency domain, or any combination of two or more of the above-mentioned items. The three kinds of resource staggering can be treated as three different mapping functions. The base station 202 may configure at least one resource offset denoted as resourceOffset in terms of a number of RBs, and the mapping function is defined based on the at least one configured resource offset. Additionally, the resource staggering in time domain may comprise intra-slot resource staggering or inter-slot resource staggering.

In some embodiments, the configuration for the intra-slot resource staggering may further comprise a number of symbols of a first part of the staggered subband, a RB offset for determining a second part of the staggered subband relative to a start RB of the first part, or any combination of two or more of the above-mentioned items. For instance, the mapping functions may be defined for intra-slot resource staggering for the subband. FIG. 3A illustrates an example of a virtual subband in accordance with aspects of the present disclosure. FIG. 3B illustrates an example of resource staggering in accordance with aspects of the present disclosure. As shown in FIG. 3B, the virtual subband in FIG. 3A is mapped to physical subband, i.e., the staggered subband. The virtual subband is staggered into two resource parts, i.e., resource part 1 and resource part 2. The resource part 1 and resource part 2 have different start symbols and different start RBs. The first resource part of the subband denoted as resource part 1 contains the first set of orthogonal frequency division multiplexing (OFDM) symbols of a slot and starts from startRb in frequency domain. The second resource part of the subband denoted as resource part 2 contains a second set of OFDM symbols of the slot and starts from a RB which is located at startRb plus resourceOffset, i.e., startRb+resourceOffset. It is noted that in this example the resource part 1 and resource part 2 are consecutive in time domain. They can also be configured to be time non-consecutive.

The number of OFDM symbols for each resource part could be up to BS configuration. For example, the base station 202 may configure the number of symbols for the first resource part of the subband, then the number of symbols for the second resource part can be determined. For example, the number of symbols for the second resource part is the number of symbols configured for the subband minus the number of symbols for the first resource part. Alternatively, it can be determined based on a principle that each set contains same number of OFDM symbols. For example, the first resource part may contain the first floor OFDM symbols, i.e., half of nSymbolsSubband, and the second resource part contains the rest OFDM symbols of the subband. As a further alternative, the number of symbols for the first resource part and the second resource part are configured separately.

In some embodiments, the configuration for the inter-slot resource staggering may further comprise a RB offset for determining the second part relative to the start RB of the first part. For instance, the mapping functions may be defined for inter-slot resource staggering for the subband. For a second set of slots, the staggered subband may start from startRb+resourceOffset, and the resourceOffset may be configured by BS.

In some embodiments, the configuration for the resource staggering in frequency domain further comprises: a RB offset for determining the second part relative to the start RB of the first part, a number of RBs per part of the staggered subband, or any combination of two or more of the above-mentioned items. For instance, the mapping functions may be defined for the resource staggering in frequency domain. FIG. 3C illustrates another example of resource staggering in accordance with aspects of the present disclosure. As shown in FIG. 3C, the virtual subband in FIG. 3A is staggered into two resource parts, i.e., resource part 1 and resource part 2. The resource part 1 and resource part 2 have the same start symbol and different start RBs. In a slot with staggered subband, the resource part 1 of the staggered subband contains the first set of RBs starting from startRb and contains nRbSubbandPerUnit RBs. The resource part 2 contains the second set of RBs starting from startRb+resourceOffset and contains nRbSubbandPerUnit RBs. The nRbSubbandPerUnit is the number of RBs in each resource part, and nRbSubbandPerUnit may either be configured by the BS or be determined implicitly by dividing nRbSubband by nUnit. The nUnit is the number of resource parts.

In some embodiments, the configuration for the resource staggering in time domain and frequency domain further comprises: a number of symbols of a first part, a number of RBs per part of the staggered subband, a first RB offset, a second RB offset, or any combination of two or more of the above-mentioned items. FIG. 3D illustrates yet another example of resource staggering in accordance with aspects of the present disclosure. As shown in FIG. 3D, the virtual subband in FIG. 3A is staggered into four resource parts, i.e., resource part 1, resource part 2, resource part 3, and resource part 4. In a slot with staggered subband, the resource part 1 contains the first set of symbols of the slot and contains nRbSubbandPerUnit RBs starting from startRB. The resource part 2 contains the first set of symbols of the slot and contains nRbSubbandPerUnit RBs starting from startRB+resourceOffset1. The resource part 3 contains the second set of symbols of the slot and contains nRbSubbandPerUnit RBs starting from startRB+resourceOffset2. The resource part 4 contains the second set of symbols of the slot and contains nRbSubbandPerUnit RBs starting from startingRB+resourceOffset2+resourceOffset1. Here resourceOffset1 denotes the RB offset between the resource parts in the same OFDM symbols and resourceOffset2 denotes the RB offset between resource part in different OFDM symbols.

In some embodiments, the first part or the second part may comprise a set of consecutive physical RBs (PRBs) . In addition, the type of the resource staggering may be configured per slot. Additionally, a RB offset may be configured per slot. For example, per-slot different resource staggering can be used to further randomize the self-interference. Difference resource offsets may be configured for different slots. In other words, different staggering patterns may be utilized for different slots.

Continuing with reference to FIG. 2, the user equipment 201 determines 225 physical resources for a signal or a channel in the staggered subband. Correspondingly, the base station 202 determines 230 physical resources for a signal or a channel in the staggered subband.

Alternatively or additionally, in order to determine the physical resources for the signal or the channel, the user equipment 201 may determine a set of consecutive virtual RBs (VRBs) for the signal or the channel within the virtual subband. The user equipment 201 then may map the set of consecutive VRBs to one of non-consecutive VRBs or consecutive VRBs within the virtual subband. The user equipment 201 may further map the one of non-consecutive VRBs or consecutive VRBs to PRBs within the staggered subband.

For example, a signal/channel may be indicated with resource allocations according to a signaling, e.g., a downlink control information (DCI) signaling, a Media Access Control (MAC) signaling, or an RRC signaling.

On the other side of the communication, in order to determine the physical resources for the signal or the channel, the base station 202 may determine a set of consecutive virtual RBs (VRBs) for the signal or the channel within the virtual subband. The base station 202 then may map the set of consecutive VRBs to one of non-consecutive VRBs or consecutive VRBs within the virtual subband. the base station 202 may further map the one of non-consecutive VRBs or consecutive VRBs to PRBs within the staggered subband.

In some embodiments, if non-interleaved mapping is configured, the set of consecutive VRBs may be mapped to the consecutive VRBs. In some embodiments, if the interleaved mapping is configured, the set of consecutive VRBs may be mapped to the non-consecutive VRBs. Alternatively, if non-interleaved mapping and frequency hopping (FH) are configured, the set of consecutive VRBs may be mapped to the non-consecutive VRBs or frequency hopped VRBs.

In an example, for time domain, a starting OFDM symbol, e.g., startSymbolChannel, and the number of symbols, e.g., nSymbolsChannel, may be configured. For frequency domain, a starting RB, e.g., startRbChannel, and the number of RBs, e.g., nRbChannel, may be configured. The UE may determine the virtual resources for the channel within the virtual subband. The virtual resources for the channel contain consecutive virtual RBs (VRBs) within the virtual subband. In time domain, the virtual resources for the channel start from startSymbolChannel and contain nSymbolsChannel consecutive symbols. In frequency domain, the virtual resources for the channel start from startRbChannel and contain nRbChannel consecutive RBs.

After that, the consecutive VRBs determined above are mapped to a set of consecutive or non-consecutive VRBs in the virtual subband, which corresponds to non-interleaved RB mapping and interleaved RB mapping respectively. For non-interleaved RB mapping, the operation may be further dependent on whether frequency hopping is configured. If frequency hopping is not configured, the set of consecutive VRBs is one-to-one mapped to a set of VRBs with same RB index. If frequency hopping is configured, the set of consecutive VRBs are mapped to a set of VRBs with different VRB indexes.

For interleaved RB mapping, the set of consecutive VRBs are mapped to a set of non-consecutive VRBs. The mapping function may reuse interleaving mapping that is defined for VRB to PRB mapping in the known schemes in the 5G NR standard (i.e., RB bundle based interleaving) . Alternatively, the VRB to PRB mapping is performed in each subband resource part.

The non-consecutive VRBs determined above may be mapped to PRBs of the physical subband based on a mapping function defined above for the staggered subband. For example, if time domain resource staggering is utilized, a VRB with index n may be mapped to a PRB with index n+resourceOffset.

FIG. 4 illustrates an example flowchart in accordance with aspects of the present disclosure. The example flowchart 400 is used for resource determination for a signal/channel that is transmitted in the subband. At 405, the user equipment 201 or the base station 202 determines consecutive VRBs in the virtual subband for the channel. At 410, the user equipment 201 or the base station 202 determines consecutive or non-consecutive VRBs in the virtual subband for the channel. At 415, the user equipment 201 or the base station 202 determines PRBs in the physical subband for the channel.

With a staggered UL subband, the known resource allocation method for the signal/channel is not feasible. The differences between the known resource allocation method include: the virtual subband for VRB allocation is determined from a non-consecutive physical subband instead of consecutive physical subband in the legacy resource allocation method. In addition, non-consecutive VRBs are determined, while non-consecutive VRBs does not determined in the legacy resource allocation method. Moreover, per resource part consecutive VRB to non-consecutive VRB mapping does not exist in known schemes.

FIGS. 5A-5C illustrate an example process for determining the PHY resources for a physical downlink shared channel (PDSCH) . As shown in FIG. 5A, a set of physical downlink shared channel (PDSCH) VRBs are determined in a virtual subband. As shown in FIG. 5B, the PDSCH VRBs determined in FIG. 5A are mapped to a set of non-consecutive VRBs in the virtual subband according to interleaved mapping function. Here the consecutive VRB to non-consecutive VRB mapping is per subband resource part performed. As shown in FIG. 5C, the VRBs determined in FIG. 5B are mapped to a set of PRBs.

In addition, FH operations happen in mapping the consecutive VRBs to a set of non-consecutive VRBs. In other words, the FH is performed on top of the VRBs and performed in the virtual subband which is different with legacy schemes where FH is performed in physical resources.

Alternatively or additionally, the frequency hopping may comprise intra-slot frequency hopping or inter-slot frequency hopping. In addition, the configuration may indicate one of the intra-slot frequency hopping or the inter-slot frequency hopping.

If intra-slot frequency hopping is configured, the operations are dependent on whether the resources are allocated within a resource part of the FD subband or across the resource parts.

In some embodiments, if the VRBs are mapped to PRBs across parts of the staggered subband, the configuration for the intra-slot frequency hopping may comprise a start RB of a first hop of the non-consecutive VRBs, a RB offset for a second hop relative to the start RB, or a combination of the above-mentioned items. For example, if the resources are allocated across the first resource part and the second resource part, the first hop is transmitted in the OFDM symbols of the first resource part and the second hop is transmitted in the OFDM symbols of second resource part. In time domain, the number of OFDM symbols of each hop might be same or different depending on the time domain resources allocated for the channel. This is different with legacy schemes where each hop contains same number of OFDM symbols. In frequency domain, the first hop starts from the starting RB allocated for the channel/signal, i.e., startRbChannel, and contains nRbChannel consecutive VRBs. The second hop starts from mod (startRbChannel+RbOffset, nRbSubband) , and contains nRbChannel consecutive VRBs. With mod (startRbChannel+RbOffset, nRbSubband) , the second hop may not exceed the range of the virtual subband.

In some embodiments, if the VRBs are mapped to PRBs within a part of the staggered subband, the configuration for the intra-slot frequency hopping may comprise a start RB of the first hop, a RB offset for the second hop relative to the start RB, or a combination of the above-mentioned items. For example, if the resources are either allocated in the first resource part or in the second resource part, the first hop and the second hop contain half of the subband resources respectively in time domain. In frequency domain, the first hop starts from startRbChannel and contains nRbChannel consecutive VRBs. The second hop starts from mod (startRbChannel+RbOffset, nRbSubband) , and contains nRbChannel consecutive VRBs.

In some embodiments, the configuration for the inter-slot frequency hopping may comprise an indication that the first hop corresponds to a transmission in even slots and the second hop corresponds to a transmission in odd slots, a start RB of the first hop, a RB offset for the second hop relative to the start RB, or any combination of two or more of the above-mentioned items. For example, if inter-slot frequency hopping is configured, in time domain, the first hop corresponds to the transmission in the even slots and the second hop corresponds to the transmission in the odd slots. In frequency domain, the first hop starts from startRbChannel and contains nRbChannel consecutive VRBs. The second hop starts from mod (startRbChannel+RbOffset, nRbSubband) , and contains nRbChannel consecutive VRBs.

FIGS. 6A-6C illustrate another example process for determining the PHY resources for a PUSCH. As shown in FIG. 6A, a set of physical uplink shared channel (PUSCH) VRBs are determined in a virtual subband. As shown in FIG. 6B, the PUSCH VRBs determined in FIG. 6A are mapped to a set of non-consecutive VRBs in the virtual subband with FH. Here the FH is per subband resource part performed. As shown in FIG. 6C, the VRBs determined in FIG. 6B are mapped to a set of PRBs.

Additionally, if the interleaved mapping is configured, the set of consecutive VRBs may be mapped to non-consecutive VRBs per resource part of the staggered subband. In addition, if the non-interleaved mapping and the frequency hopping are configured, each of the first hop and the second hop may be transmitted in a part of the staggered subband.

In some embodiments, if the PUSCH is transmitted across parts of the staggered subband, the user equipment 201 may determine at least one demodulation reference signal (DMRS) symbol per segment of a PUSCH, and a segment of the PUSCH may be transmitted in a part of the staggered subband.

On the other side of the communication, if the PUSCH is transmitted across parts of the staggered subband, the base station 202 may determine at least one demodulation reference signal (DMRS) symbol per segment of a physical uplink shared channel (PUSCH) , and a segment of the PUSCH may be transmitted in a part of the staggered subband.

For example, if allocated resources for a PUSCH are across the first resource part and the second part, the DMRS symbols should be determined for each PUSCH segment separately no matter whether FH is configured or not for the PUSCH. PUSCH segment 1 denotes the PUSCH segment transmitted in the first resource part and PUSCH segment 2 denotes the PUSCH segment transmitted in the second resource part, channel estimation should be performed for each PUSCH segment in order to decode PUSCH.

Additionally, in order to determine the at least one DMRS symbol, the user equipment 201 may determine the at least one DMRS symbol based on a number of symbols of the segment, a PUSCH mapping type of the segment, and a start symbol of the segment. On the other side of the communication, in order to determine the at least one DMRS symbol, the base station 202 may determine the at least one DMRS symbol based on a number of symbols of the segment, a PUSCH mapping type of the segment, and a start symbol of the segment. For instance, the DMRS symbols for each segment may be determined based on the number of OFDM symbols of each segment and other factors such as the PUSCH mapping type and configuration of additional DMRS symbols.

In an example, the user equipment 201 may use a legacy table for DMRS symbols when FH is not configured (as shown in Table 1, cited from TS38.211) and utilized for both FH and no FH.

Table 1 PUSCH DMRS positions

The parameter l_d in Table 1, which is known as the duration between the first OFDM symbol of the slot and the last OFDM symbol of the scheduled PUSCH resources in the slot for PUSCH mapping type A, and the duration of PUSCH resources of PUSCH mapping type B, where PUSCH mapping type A and PUSCH mapping type B are known from the NR standard, should be revised to be PUSCH durations of each PUSCH segment. The parameter l₀ in Table 1 should be revised to the position relative to the start of each PUSCH segment for both PUSCH with FH or without FH.

In another example, a dedicated table could be introduced for DMRS symbols determination for PUSCH transmitted in the staggered subband. For example, a part of Table 1 may be used for the dedicated table, as shown in Table 2:

Table 2 PUSCH DMRS positions

In general, the staggered subband is introduced for one link direction (e.g., DL/UL) in slots or symbols that are configured for another link direction (e.g., UL/DL) . For example, a staggered DL subband (or UL subband) is configured in a UL slot (or DL slot) . Then from BS point of view, the DL transmission in the DL subband may interfere a part of UL signal/channel received from each UE, resulting a higher likelihood of correct decoding/detection of the channels/signals. In addition, in legacy schemes, the resource allocation for a channel/signal is on top of a bandwidth (BW) (e.g., a bandwidth part, BWP, or a carrier) with consecutive PRBs. With staggered subband with non-consecutive PRBs, such resource allocation cannot be reused. The present disclosure provides a solution for resource allocation for the staggered FD subband, then provide the proposals for the resource allocation and determination for the channels/signals that are transmitted in the staggered subband.

FIG. 7 illustrates an example of a device 700 that supports a staggered subband for full duplex in accordance with aspects of the present disclosure. The device 700 may be an example of a UE 104 as described herein. The device 700 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 700 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 702, a memory 704, a transceiver 706, and, optionally, an I/O controller 708. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .

The processor 702, the memory 704, the transceiver 706, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 702, the memory 704, the transceiver 706, or various combinations or components thereof may support a method for performing one or more of the operations described herein.

In some implementations, the processor 702, the memory 704, the transceiver 706, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 702 and the memory 704 coupled with the processor 702 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 702, instructions stored in the memory 704) .

For example, the processor 702 may support wireless communication at the device 700 in accordance with examples as disclosed herein. The processor 702 may be configured to operable to support a means for receiving, via the transceiver and from a base station, a configuration for a subband; a means for determining a staggered subband based on the configuration; and a means for determining physical resources for a signal or a channel in the staggered subband. The processor 702 may be configured to operable to support other means for other implementations of method 1100.

The processor 702 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 implementations, the processor 702 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 702. The processor 702 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 704) to cause the device 700 to perform various functions of the present disclosure.

The memory 704 may include random access memory (RAM) and read-only memory (ROM) . The memory 704 may store computer-readable, computer-executable code including instructions that, when executed by the processor 702 cause the device 700 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 702 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 704 may include, among other things, a basic I/O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.

The I/O controller 708 may manage input and output signals for the device 700. The I/O controller 708 may also manage peripherals not integrated into the device M02. In some implementations, the I/O controller 708 may represent a physical connection or port to an external peripheral. In some implementations, the I/O controller 708 may utilize an operating system such as or another known operating system. In some implementations, the I/O controller 708 may be implemented as part of a processor, such as the processor 706. In some implementations, a user may interact with the device 700 via the I/O controller 708 or via hardware components controlled by the I/O controller 708.

In some implementations, the device 700 may include a single antenna 710. However, in some other implementations, the device 700 may have more than one antenna 710 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 706 may communicate bi-directionally, via the one or more antennas 710, wired, or wireless links as described herein. For example, the transceiver 706 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 706 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 710 for transmission, and to demodulate packets received from the one or more antennas 710. The transceiver 706 may include one or more transmit chains, one or more receive chains, or a combination thereof.

A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 710 for transmitting the amplified signal into the air or wireless medium.

A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 710 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.

FIG. 8 illustrates an example of a device 800 that supports a staggered subband for full duplex in accordance with aspects of the present disclosure. The device 800 may be an example of a network entity 102 as described herein. The device 800 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 800 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 802, a memory 804, a transceiver 806, and, optionally, an I/O controller 808. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .

The processor 802, the memory 804, the transceiver 806, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 802, the memory 804, the transceiver 806, or various combinations or components thereof may support a method for performing one or more of the operations described herein.

In some implementations, the processor 802, the memory 804, the transceiver 806, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 802 and the memory 804 coupled with the processor 802 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 802, instructions stored in the memory 804) .

For example, the processor 802 may support wireless communication at the device 800 in accordance with examples as disclosed herein. The processor 802 may be configured to operable to support a means for transmitting, via the transceiver and to a user equipment, a configuration for a subband; a means for determining a staggered subband based on the configuration; and a means for determining physical resources for a signal or a channel in the staggered subband. The processor 802 may be configured to operable to support other means for other implementations of method 1200.

The processor 802 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 implementations, the processor 802 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 802. The processor 802 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 804) to cause the device 800 to perform various functions of the present disclosure.

The memory 804 may include random access memory (RAM) and read-only memory (ROM) . The memory 804 may store computer-readable, computer-executable code including instructions that, when executed by the processor 802 cause the device 800 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 802 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 804 may include, among other things, a basic I/O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.

The I/O controller 808 may manage input and output signals for the device 800. The I/O controller 808 may also manage peripherals not integrated into the device M02. In some implementations, the I/O controller 808 may represent a physical connection or port to an external peripheral. In some implementations, the I/O controller 808 may utilize an operating system such as or another known operating system. In some implementations, the I/O controller 808 may be implemented as part of a processor, such as the processor 806. In some implementations, a user may interact with the device 800 via the I/O controller 808 or via hardware components controlled by the I/O controller 808.

In some implementations, the device 800 may include a single antenna 810. However, in some other implementations, the device 800 may have more than one antenna 810 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 806 may communicate bi-directionally, via the one or more antennas 810, wired, or wireless links as described herein. For example, the transceiver 806 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 806 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 810 for transmission, and to demodulate packets received from the one or more antennas 810. The transceiver 806 may include one or more transmit chains, one or more receive chains, or a combination thereof.

A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 810 for transmitting the amplified signal into the air or wireless medium.

A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 810 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.

FIG. 9 illustrates an example of a processor 900 that supports a staggered subband for full duplex in accordance with aspects of the present disclosure. The processor 900 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 900 may include a controller 902 configured to perform various operations in accordance with examples as described herein. The processor 900 may optionally include at least one memory 904. Additionally, or alternatively, the processor 900 may optionally include one or more arithmetic-logic units (ALUs) 900. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .

The processor 900 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 900) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .

The controller 902 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 900 to cause the processor 900 to support various operations in accordance with examples as described herein. For example, the controller 902 may operate as a control unit of the processor 900, generating control signals that manage the operation of various components of the processor 900. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.

The controller 902 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 904 and determine subsequent instruction (s) to be executed to cause the processor 900 to support various operations in accordance with examples as described herein. The controller 902 may be configured to track memory address of instructions associated with the memory 904. The controller 902 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 902 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 900 to cause the processor 900 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 902 may be configured to manage flow of data within the processor 900. The controller 902 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 900.

The memory 904 may include one or more caches (e.g., memory local to or included in the processor 900 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 904 may reside within or on a processor chipset (e.g., local to the processor 900) . In some other implementations, the memory 904 may reside external to the processor chipset (e.g., remote to the processor 900) .

The memory 904 may store computer-readable, computer-executable code including instructions that, when executed by the processor 900, cause the processor 900 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 902 and/or the processor 900 may be configured to execute computer-readable instructions stored in the memory 904 to cause the processor 900 to perform various functions (e.g., functions or tasks supporting transmit power prioritization) . For example, the processor 900 and/or the controller 902 may be coupled with or to the memory 904, the processor 900, the controller 902, and the memory 904 may be configured to perform various functions described herein. In some examples, the processor 900 may include multiple processors and the memory 904 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.

The one or more ALUs 900 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 900 may reside within or on a processor chipset (e.g., the processor 900) . In some other implementations, the one or more ALUs 900 may reside external to the processor chipset (e.g., the processor 900) . One or more ALUs 900 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 900 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 900 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 900 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 900 to handle conditional operations, comparisons, and bitwise operations.

The processor 900 may support wireless communication in accordance with examples as disclosed herein. The processor 900 may be configured to or operable to support a means for receiving, from a base station, a configuration for a subband; a means for determining a staggered subband based on the configuration; and a means for determining physical resources for a signal or a channel in the staggered subband. The processor 900 may be configured to operable to support other means for other implementations of method 1100.

FIG. 10 illustrates an example of a processor 1000 that supports a staggered subband for full duplex in accordance with aspects of the present disclosure. The processor 1000 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 1000 may include a controller 1002 configured to perform various operations in accordance with examples as described herein. The processor 1000 may optionally include at least one memory 1004. Additionally, or alternatively, the processor 1000 may optionally include one or more arithmetic-logic units (ALUs) 1000. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .

The processor 1000 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 1000) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .

The controller 1002 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 1000 to cause the processor 1000 to support various operations in accordance with examples as described herein. For example, the controller 1002 may operate as a control unit of the processor 1000, generating control signals that manage the operation of various components of the processor 1000. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.

The controller 1002 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 1004 and determine subsequent instruction (s) to be executed to cause the processor 1000 to support various operations in accordance with examples as described herein. The controller 1002 may be configured to track memory address of instructions associated with the memory 1004. The controller 1002 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 1002 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 1000 to cause the processor 1000 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 1002 may be configured to manage flow of data within the processor 1000. The controller 1002 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 1000.

The memory 1004 may include one or more caches (e.g., memory local to or included in the processor 1000 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 1004 may reside within or on a processor chipset (e.g., local to the processor 1000) . In some other implementations, the memory 1004 may reside external to the processor chipset (e.g., remote to the processor 1000) .

The memory 1004 may store computer-readable, computer-executable code including instructions that, when executed by the processor 1000, cause the processor 1000 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 1002 and/or the processor 1000 may be configured to execute computer-readable instructions stored in the memory 1004 to cause the processor 1000 to perform various functions (e.g., functions or tasks supporting transmit power prioritization) . For example, the processor 1000 and/or the controller 1002 may be coupled with or to the memory 1004, the processor 1000, the controller 1002, and the memory 1004 may be configured to perform various functions described herein. In some examples, the processor 1000 may include multiple processors and the memory 1004 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.

The one or more ALUs 1000 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 1000 may reside within or on a processor chipset (e.g., the processor 1000) . In some other implementations, the one or more ALUs 1000 may reside external to the processor chipset (e.g., the processor 1000) . One or more ALUs 1000 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 1000 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 1000 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 1000 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 1000 to handle conditional operations, comparisons, and bitwise operations.

The processor 1000 may support wireless communication in accordance with examples as disclosed herein. The processor 1002 may be configured to or operable to support a means for transmitting, to a user equipment, a configuration for a subband; a means for determining a staggered subband based on the configuration; and a means for determining physical resources for a signal or a channel in the staggered subband. The processor 1000 may be configured to operable to support other means for other implementations of method 1200.

FIG. 11 illustrates a flowchart of a method 1100 that supports a staggered subband for full duplex in accordance with aspects of the present disclosure. The operations of the method 1100 may be implemented by a device or its components as described herein. For example, the operations of the method 1100 may be performed by a UE 104 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.

At 1105, the method may include receiving, from a base station, a configuration for a subband. The operations of 1105 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1105 may be performed by a device as described with reference to FIG. 1A.

At 1110, the method may include determining a staggered subband based on the configuration. The operations of 1110 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1110 may be performed by a device as described with reference to FIG. 1A.

At 1115, the method may include determining physical resources for a signal or a channel in the staggered subband. The operations of 1115 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1115 may be performed by a device as described with reference to FIG. 1A.

In some embodiment, the configuration may comprise: a start symbol of the subband; a number of symbols of the subband; a start resource block (RB) of the subband; and a number of RBs of the subband.

In some embodiment, determining the staggered subband may include determining a virtual subband based on the configuration; and mapping the virtual subband to the staggered subband based on at least one of: resource staggering in time domain, resource staggering in frequency domain, or resource staggering in time domain and frequency domain.

In some embodiment, the configuration may further comprise one of the following: an indication of whether to use resource staggering for the subband; or an indication of which type of resource staggering is used to determine the staggered subband. In some embodiment, the resource staggering in time domain may comprise intra-slot resource staggering or inter-slot resource staggering.

In some embodiment, the configuration for the intra-slot resource staggering may further comprise one of: a number of symbols of a first part of the staggered subband, or a RB offset for determining a second part of the staggered subband relative to a start RB of the first part; the configuration for the inter-slot resource staggering may further comprise: a RB offset for determining the second part relative to the start RB of the first part; the configuration for the resource staggering in frequency domain may further comprise one of: a RB offset for determining the second part relative to the start RB of the first part, or a number of RBs per part of the staggered subband; or the configuration for the resource staggering in time domain and frequency domain may further comprise one of: a number of symbols of a first part, a number of RBs per part of the staggered subband, a first RB offset, or a second RB offset.

In some embodiment, one of the first part or the second part may comprise a set of consecutive physical RBs (PRBs) . In some embodiment, determining the physical resources for the signal or the channel may comprise: determining a set of consecutive virtual RBs (VRBs) for the signal or the channel within the virtual subband; mapping the set of consecutive VRBs to one of non-consecutive VRBs or consecutive VRBs within the virtual subband; and mapping the one of non-consecutive VRBs or consecutive VRBs to PRBs within the staggered subband.

In some embodiment, the set of consecutive VRBs may be mapped to the consecutive VRBs in the case that non-interleaved mapping is configured; or the set of consecutive VRBs may be mapped to the non-consecutive VRBs in the case that interleaved mapping is configured.

In some embodiment, the set of consecutive VRBs may be mapped to the non-consecutive VRBs in the case that the non-interleaved mapping and frequency hopping are configured. In some embodiment, the frequency hopping may comprise intra-slot frequency hopping or inter-slot frequency hopping; or the configuration may indicate one of the intra-slot frequency hopping or the inter-slot frequency hopping.

In some embodiment, in that case that the VRBs are mapped to PRBs across parts of the staggered subband, the configuration for the intra-slot frequency hopping may comprise one of: a start RB of a first hop of the non-consecutive VRBs, or a RB offset for a second hop relative to the start RB; in that case that the VRBs are mapped to PRBs within a part of the staggered subband, the configuration for the intra-slot frequency hopping may comprise one of: a start RB of the first hop, or a RB offset for the second hop relative to the start RB; or the configuration for the inter-slot frequency hopping may comprise one of: an indication that the first hop corresponds to a transmission in even slots and the second hop corresponds to a transmission in odd slots, a start RB of the first hop, or a RB offset for the second hop relative to the start RB.

In some embodiment, the set of consecutive VRBs may be mapped to non-consecutive VRBs per resource part of the staggered subband in the case that interleaved mapping is configured; or each of the first hop and the second hop may be transmitted in a part of the staggered subband in the case that the non-interleaved mapping and the frequency hopping are configured.

In some embodiment, the method may further include determining at least one demodulation reference signal (DMRS) symbol per segment of a physical uplink shared channel (PUSCH) in the case that the PUSCH is transmitted across parts of the staggered subband, wherein a segment of the PUSCH is transmitted in a part of the staggered subband.

In some embodiment, determining the at least one DMRS symbol may include determining the at least one DMRS symbol based on a number of symbols of the segment, a PUSCH mapping type of the segment, and a start symbol of the segment. In some embodiment, the type of the resource staggering may be configured per slot; or a RB offset may be configured per slot.

FIG. 12 illustrates a flowchart of a method 1200 that supports a staggered subband for full duplex in accordance with aspects of the present disclosure. The operations of the method 1200 may be implemented by a device or its components as described herein. For example, the operations of the method 1200 may be performed by a network entity 102 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.

At 1205, the method may include transmitting, to a user equipment, a configuration for a subband. The operations of 1205 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1205 may be performed by a device as described with reference to FIG. 1A.

At 1210, the method may include determining a staggered subband based on the configuration. The operations of 1210 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1210 may be performed by a device as described with reference to FIG. 1A.

At 1215, the method may include determining physical resources for a signal or a channel in the staggered subband. The operations of 1215 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1215 may be performed by a device as described with reference to FIG. 1A.

It should be noted that the methods described herein describes possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.

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

The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.

Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.

As used herein, including in the claims, an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” or “one or both of” ) indicates an inclusive list such 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) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.

The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

A user equipment comprising:

a processor; and

a transceiver coupled to the processor,

wherein the processor is configured to:

receive, via the transceiver and from a base station, a configuration for a subband;

determine a staggered subband based on the configuration; and

determine physical resources for a signal or a channel in the staggered subband.
The user equipment of claim 1, wherein the configuration comprises:

a start symbol of the subband;

a number of symbols of the subband;

a start resource block (RB) of the subband; and

a number of RBs of the subband.
The user equipment of claim 1, wherein the processor is configured to determine the staggered subband by:

determining a virtual subband based on the configuration; and

mapping the virtual subband to the staggered subband based on at least one of: resource staggering in time domain, resource staggering in frequency domain, or resource staggering in time domain and frequency domain.
The user equipment of claim 1, wherein the configuration further comprises one of the following:

an indication of whether to use resource staggering for the subband; or

an indication of which type of resource staggering is used to determine the staggered subband.
The user equipment of claim 3, wherein the resource staggering in time domain comprises intra-slot resource staggering or inter-slot resource staggering.
The user equipment of claim 5, wherein one of the following:

the configuration for the intra-slot resource staggering further comprises one of: a number of symbols of a first part of the staggered subband, a RB offset for determining a second part of the staggered subband relative to a start RB of the first part;

the configuration for the inter-slot resource staggering further comprises: a RB offset for determining the second part relative to the start RB of the first part;

the configuration for the resource staggering in frequency domain further comprises: a RB offset for determining the second part relative to the start RB of the first part, and a number of RBs per part of the staggered subband; or

the configuration for the resource staggering in time domain and frequency domain further comprises: a number of symbols of a first part, a number of RBs per part of the staggered subband, a first RB offset, and a second RB offset.
The user equipment of claim 6, wherein one of the first part or the second part comprises a set of consecutive physical RBs (PRBs) .
The user equipment of claim 1, wherein the processor is configured to determine the physical resources for the signal or the channel by:

determining a set of consecutive virtual RBs (VRBs) for the signal or the channel within the virtual subband;

mapping the set of consecutive VRBs to one of non-consecutive VRBs or consecutive VRBs within the virtual subband; and

mapping the one of non-consecutive VRBs or consecutive VRBs to PRBs within the staggered subband.
The user equipment of claim 8, wherein one of the following:

the set of consecutive VRBs are mapped to the consecutive VRBs in the case that non-interleaved mapping is configured; or

the set of consecutive VRBs are mapped to the non-consecutive VRBs in the case that interleaved mapping is configured.
The user equipment of claim 9, wherein the set of consecutive VRBs are mapped to the non-consecutive VRBs in the case that non-interleaved mapping and frequency hopping are configured.
The user equipment of claim 10, wherein one of:

the frequency hopping comprises intra-slot frequency hopping or inter-slot frequency hopping; or

the configuration indicates one of the intra-slot frequency hopping or the inter-slot frequency hopping.
The user equipment of claim 11, wherein one of the following:

in that case that the VRBs are mapped to PRBs across parts of the staggered subband, the configuration for the intra-slot frequency hopping comprises one of: a start RB of a first hop of the non-consecutive VRBs, or a RB offset for a second hop relative to the start RB;

in that case that the VRBs are mapped to PRBs within a part of the staggered subband, the configuration for the intra-slot frequency hopping comprises one of: a start RB of the first hop, or a RB offset for the second hop relative to the start RB; or

the configuration for the inter-slot frequency hopping comprises one of: an indication that the first hop corresponds to a transmission in even slots and the second hop corresponds to a transmission in odd slots, a start RB of the first hop, or a RB offset for the second hop relative to the start RB.
The user equipment of claim 12, wherein one of the following:

the set of consecutive VRBs are mapped to non-consecutive VRBs per resource part of the staggered subband in the case that interleaved mapping is configured; or

each of the first hop and the second hop is transmitted in a part of the staggered subband in the case that non-interleaved mapping and frequency hopping are configured.
The user equipment of claim 1, wherein the processor is configured to:

determine at least one demodulation reference signal (DMRS) symbol per segment of a physical uplink shared channel (PUSCH) in the case that the PUSCH is transmitted across parts of the staggered subband, wherein a segment of the PUSCH is transmitted in a part of the staggered subband.
The user equipment of claim 14, wherein the processor is configured to determine the at least one DMRS symbol by:

determining the at least one DMRS symbol based on a number of symbols of the segment, a PUSCH mapping type of the segment, and a start symbol of the segment.
The user equipment of any of claims 1-15, wherein one of the following:

the type of the resource staggering is configured per slot; or

a RB offset is configured per slot.
A base station comprising:

a processor; and

a transceiver coupled to the processor,

wherein the processor is configured to:

transmit, via the transceiver and to a user equipment, a configuration for a subband;

determine a staggered subband based on the configuration; and

determine physical resources for a signal or a channel in the staggered subband.
The base station of claim 17, wherein the configuration comprises:

a start symbol of the subband;

a number of symbols of the subband;

a start resource block (RB) of the subband; and

a number of RBs of the subband.
A method performed by a user equipment, comprising:

receiving, from a base station, a configuration for a subband;

determining a staggered subband based on the configuration; and

determining physical resources for a signal or a channel in the staggered subband.
A processor for wireless communication, comprising:

at least one memory; and

a controller coupled with the at least one memory and configured to cause the controller to:

receive, from a base station, a configuration for a subband;

determine a staggered subband based on the configuration; and

determine physical resources for a signal or a channel in the staggered subband.