Report on the grouping margin for each sub-band
By allocating multiple subbands to the uplink transmission bandwidth and reporting the margin value of each subband, the problem of insufficient PHR accuracy in the prior art is solved, enabling finer power control and self-interference management, and improving the accuracy of frequency allocation.
Patent Information
- Application Number
- CN202180047325.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-06-08
- Filing Date
- 2021-06-09
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2041-06-09
AI Technical Summary
Existing Power Headroom Reports (PHRs) cannot provide sufficient accuracy in providing a single PH value and/or a single PCMAX,f,c value across bandwidth, resulting in unbalanced frequency allocation and affecting the accuracy of frequency allocation and self-interference management, especially for UEs with high frequency resolution and FD-aware UEs.
A PHR method is provided that improves the fine granularity of power control and self-interference management by allocating multiple subbands to the uplink transmission bandwidth, each associated with a different transmit power level, and reporting the margin value of each subband.
It improves the accuracy of power control and self-interference management capabilities, especially for UEs with high frequency resolution, enhancing the accuracy of frequency allocation and interference reduction.
Smart Images

Figure CN115997426B_ABST
Abstract
Description
[0001] Cross-references to related applications
[0002] This patent application claims the benefits of U.S. Provisional Application No. 63 / 049,103, filed July 7, 2020, entitled “REPORTING OF PACKETHEADROOM PER SUB-BAND,” and U.S. Non-Provisional Application No. 17 / 342,418, filed June 8, 2021, entitled “REPORTING OF PACKET HEADROOM PER SUB-BAND,” both of which have been assigned to the assignee of this application, and the entire contents of both applications are expressly incorporated herein by reference. Technical Field
[0003] In summary, various aspects of this disclosure relate to wireless communication and techniques and apparatus for reporting packet margins for each subband. Background Technology
[0004] Wireless communication systems have been widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / improved LTE is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).
[0005] A wireless communication network may include multiple base stations (BSs), where each BS is capable of supporting communication for multiple user equipments (UEs). UEs can communicate with the base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As described further in detail herein, BS can refer to a node B, gNB, access point (AP), radio headend, transmit / receive point (TRP), new radio (NR) BS, 5G node B, etc.
[0006] The above multiple access technologies have been adopted in various telecommunications standards to provide a universal protocol enabling different user equipment to communicate across city limits, countries, regions, and even globally. New Radio (NR) (also known as 5G) is an evolution set of the LTE mobile standard released by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, enhancing service, fully utilizing new spectrum, using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies, and carrier aggregation. However, with the continued increase in demand for mobile broadband access, there is a need to further improve LTE and NR technologies. Preferably, these improvements should also apply to other multiple access technologies and telecommunications standards that employ these technologies. Summary of the Invention
[0007] To provide a basic understanding of one or more aspects of the invention, a brief overview of these aspects is given below. This overview is not an exhaustive summary of all anticipated aspects, nor is it intended to identify key or essential elements of all aspects, or to describe the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simple form as a prelude to the detailed description that follows.
[0008] 3GPP Rel.15 introduced the Power Headroom Report (PHR) as a MAC control element (CE). The PHR reports the headroom between the current UE transmit power (estimated power) and the nominal power. For example, the serving cell can use the PHR to estimate how much uplink bandwidth the UE is allowed to use for a specific subframe. The PHR can be triggered by PHR function configuration or reconfiguration, cell activation, periodicity, or by changes in path loss or power backoff (P-MPRc) before the next periodic trigger of the PHR.
[0009] In some design schemes, the bandwidth associated with a specific cell may include different transmit powers, pH values, and / or P values. CMAX,f,c The value is associated with the subband. In some cases, a single PH value and / or a single P value is provided across the bandwidth. CMAX,f,cThe values may not provide sufficient accuracy to mitigate self-interference at the gNB of FD-aware and / or FD-sensing UEs. Therefore, aspects of this disclosure relate to a power level controller (PHR) comprising pH values associated with multiple subbands of corresponding bandwidths used for uplink transmission, whereby these subbands are associated with different transmit power levels. These aspects can provide various technical advantages, such as finer-grained power control and improved management of self-interference for FD-aware and / or FD-enabled UEs.
[0010] In one aspect of this disclosure, a method, computer-readable medium, and apparatus are provided. The apparatus may be a UE (User Equipment). The UE may determine a transmit power configuration for uplink transmission on a first bandwidth, the first bandwidth including a first subband and a second subband, the first subband being associated with a first set of transmit power levels, and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels, and may transmit a power headroom report (PHR) indicating first subband headroom values and second subband headroom values associated with the first and second subbands, respectively.
[0011] In one aspect of this disclosure, a method, computer-readable medium, and apparatus are provided. The apparatus may be a network component (e.g., a BS or core network component). The network component may receive a Power Headroom Report (PHR) from a User Equipment (UE), the PHR indicating first subband headroom values and second subband headroom values associated with a first subband and a second subband, respectively. The first and second subbands include at least a portion of a first bandwidth associated with transmit power configuration for uplink transmissions from the UE. The first subband is associated with a first set of transmit power levels, and the second subband is associated with a second set of transmit power levels different from the first set of transmit power levels. The method also includes performing power control functions associated with the UE, at least in part, based on the PHR.
[0012] The aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems, as fully described with reference to the accompanying drawings and description, and as shown in the accompanying drawings and description.
[0013] To better understand the following detailed description, the features and technical advantages of the examples according to this disclosure have been generally summarized above. Further features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures to perform the same purpose as this disclosure. These equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (regarding their organization and operation) and the associated advantages will be better understood when the following detailed description is considered in conjunction with the accompanying drawings. Each of the drawings provided is for illustrative and descriptive purposes only and is not intended to limit the invention. Attached Figure Description
[0014] To gain a detailed understanding of the features described above in this disclosure, this application provides a more specific description of some aspects with reference to the above brief summary, some of which are illustrated in the accompanying drawings. However, it should be noted that since the description of the invention allows for other equivalent and effective aspects, these drawings merely depict certain typical aspects of this disclosure and should not be considered as limiting the scope of protection of the invention. The same reference numerals in different drawings may identify the same or similar elements.
[0015] Figure 1 This is a block diagram conceptually illustrating an example of a wireless communication network according to various aspects of this disclosure.
[0016] Figure 2 This is a block diagram conceptually illustrating an example of communication between a base station and a UE in a wireless communication network according to various aspects of this disclosure.
[0017] Figure 3-5 It is a schematic diagram illustrating one or more examples of full-duplex operation modes according to various aspects of this disclosure.
[0018] Figure 6 This is a schematic diagram illustrating one or more examples of full-duplex types according to various aspects of this disclosure.
[0019] Figures 7A-7B The top and side perspective views show a panel architecture for a full-duplex gNB according to one aspect of this disclosure.
[0020] Figure 8 An exemplary resource allocation for an FDD BS and one or more UEs is shown according to one aspect of this disclosure.
[0021] Figure 9A The PHR of MAC CE according to one aspect of this disclosure is shown.
[0022] Figure 9B The PHR of MAC CE is shown according to another aspect of this disclosure.
[0023] Figure 10 An exemplary process of wireless communication according to one aspect of this disclosure is shown.
[0024] Figure 11 An exemplary process of wireless communication according to one aspect of this disclosure is shown.
[0025] Figure 12 This illustrates a subband PHR configuration associated with the bandwidth used for uplink transmission, according to one aspect of this disclosure.
[0026] Figure 13 This illustrates a subband PHR configuration associated with the bandwidth used for uplink transmission, according to one aspect of this disclosure.
[0027] Figure 14 This illustrates a subband PHR configuration associated with the bandwidth used for uplink transmission, according to one aspect of this disclosure.
[0028] Figure 15 This illustrates a subband PHR configuration associated with the bandwidth used for uplink transmission, according to one aspect of this disclosure.
[0029] Figure 16 The PHR of MAC CE is shown according to another aspect of this disclosure.
[0030] Figure 17 This is a conceptual data flow diagram illustrating the data flow between different units / components in an exemplary apparatus according to one aspect of this disclosure.
[0031] Figure 18 This is a schematic diagram illustrating an exemplary hardware implementation of an apparatus for employing a processing system according to one aspect of this disclosure.
[0032] Figure 19 This is a schematic diagram illustrating an exemplary hardware implementation of an apparatus for employing a processing system according to another aspect of this disclosure. Detailed Implementation
[0033] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as limited to any particular structure or function given throughout this disclosure. Rather, these aspects are provided only to make this disclosure thorough and complete, and to fully convey the scope of protection of this disclosure to those skilled in the art. Based on this application, those skilled in the art should understand that the scope of this disclosure is intended to cover any aspect of the disclosure herein, whether implemented independently or in conjunction with any other aspect of this disclosure. For example, an apparatus or method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods that may be implemented using other structures, functions, or structures and functions other than those set forth herein, or structures and functions different from those set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more components of the invention.
[0034] The following describes some aspects of a telecommunications system with reference to various devices and techniques. These devices and techniques will be described in the following detailed embodiments and depicted in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0035] It should be noted that although this document uses terms commonly associated with 3G and / or 4G wireless technologies to describe aspects thereof, aspects of this disclosure may also be applied to communication systems based on other generations (e.g., 5G and later technologies, including NR technology).
[0036] Figure 1This is a schematic diagram illustrating a wireless network 100 that can implement various aspects of the present disclosure. The wireless network 100 can be an LTE network or some other wireless network (e.g., a 5G or NR network). The wireless network 100 can include multiple BSs 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE), and a BS can also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, Transmitter / Receiver Point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, depending on the context in which the term "cell" is used, the term "cell" can refer to the coverage area of a BS and / or the BS subsystem serving that coverage area.
[0037] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers), allowing unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area, allowing unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home), allowing restricted access for UEs associated with that femtocell (e.g., UEs in a closed user group (CSG)). A BS used for macrocells can be called a macro BS. A BS used for picocells can be called a pico BS. A BS used for femtocells can be called a femto BS or a home BS. Figure 1 In the example shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably.
[0038] In some respects, the cell does not need to be stationary; the geographical area of the cell can move depending on the location of the mobile BS. In some respects, BSs can use any suitable transport network to interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connection, virtual network, etc.).
[0039] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and transmit those data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions from other UEs. Figure 1 In the example shown, relay station 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station can also be called a relay BS, relay base station, repeater, etc.
[0040] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have higher transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).
[0041] Network controller 130 can be coupled to a group of base stations (BSs) and provide coordination and control for these BSs. Network controller 130 can communicate with these BSs via backhaul. These BSs can also communicate directly or indirectly with each other, for example, via wireless or wired backhaul.
[0042] UEs 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio device), an in-vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, or any other suitable device configured to communicate via wireless or wired media.
[0043] Some UEs can be considered as Machine-Type Communication (MTC) UEs or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. For example, MTC and eMTC UEs include robots, drones, remote devices, sensors, meters, monitors, location tags, etc., capable of communicating with a base station, another device (e.g., a remote device), or some other entity. For example, a wireless node can provide connectivity to or from a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be included in a housing that houses the components of UE 120 (e.g., processor components, memory components, etc.). In some aspects, the processor components and memory components can be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) can be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, etc.
[0044] Typically, any number of wireless networks can be deployed within a given geographical area. Each wireless network can support a specific Radio Access Technology (RAT) and can operate on one or more frequencies. A RAT can also be called a radio technology, air interface, etc. A frequency can also be called a carrier, frequency channel, etc. Each frequency can support a single RAT within a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.
[0045] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary device). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein that are performed by base station 110.
[0046] As indicated above, Figure 1 Examples are provided. Other examples can be found in the reference. Figure 1 The examples described are different.
[0047] Figure 2A block diagram 200 shows a design scheme 200 for base station 110 and UE 120, wherein base station 110 and UE 120 can be Figure 1 One of the base stations in the middle and Figure 1 One of the UEs in the system. Base station 110 may be equipped with T antennas 234a to 234t, and UE 120 may be equipped with R antennas 252a to 252r, wherein typically T≥1 and R≥1.
[0048] At base station 110, transmit processor 220 can receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from each UE, process the data for each UE (e.g., coding and modulation) based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., for semi-static resource allocation information (SRPI), etc.) and control information (e.g., CQI requests, permission, upper-layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on these data symbols, control symbols, overhead symbols, and / or reference symbols (if applicable), and provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog signal, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively. Position coding can be used to generate synchronization signals to transmit other information, according to various aspects described in further detail below.
[0049] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process these input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor can determine the Received Reference Signal Power (RSRP), Received Signal Strength Indicator (RSSI), Received Reference Signal Quality (RSRQ), Channel Quality Indicator (CQI), and so on. In some aspects, one or more components of the UE 120 may be included in a housing.
[0050] On the uplink, at UE 120, transmit processor 264 can receive data from data source 262, receive control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from controller / processor 280, and process the data and control information. Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-encoded (if applicable) by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted back to base station 110. At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. The receiver processor 238 can provide decoded data to the data sink 239 and decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.
[0051] Figure 2The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or any other components may execute one or more techniques associated with disjoint resource indication for full-duplex operation, as further described in detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other components may perform or direct the operational procedures as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, when said one or more instructions are executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, translation, interpretation, etc.), the operations described herein may be performed or directed. In some aspects, the execution instructions may include: run instructions, translation instructions, compile instructions, interpret instructions, etc. Scheduler 246 may schedule data transmission of the UE on the downlink and / or uplink.
[0052] As indicated above, Figure 2 Examples are provided. Other examples can be found in the reference. Figure 2 The examples described are different.
[0053] Figure 3-5 This is a schematic diagram illustrating one or more examples of full-duplex operation modes according to various aspects of this disclosure. User equipment (UE) and base station (BS) can communicate with each other using beams. For example, the beams can be downlink beams (e.g., on which information can be transmitted from the BS to the UE) or uplink beams (e.g., on which information can be transmitted from the UE to the BS). In some aspects, the UE and BS can be integrated access backhaul (IAB) radio nodes.
[0054] When a communication link includes only one of the uplink or downlink, the communication link between the UE and BS can be called half-duplex; when the communication link includes both uplink and downlink, it can be called full-duplex. Compared to half-duplex communication links, full-duplex communication links can provide scalability by increasing the data rate on the link. In a full-duplex communication link, different antenna elements, subarrays, or antenna panels of the wireless communication device can perform uplink and downlink communication simultaneously or concurrently.
[0055] Compared to half-duplex communication, full-duplex communication may present certain challenges. For example, wireless communication devices (e.g., UE, BA, and / or wireless nodes) may experience self-interference between the uplink and downlink beams in a full-duplex link or between components of the wireless communication device. This self-interference can complicate monitoring reference signals to detect beam failures. Furthermore, self-interference, cross-correlation, and other issues that can occur in full-duplex communication links do not occur in half-duplex links. Additionally, wireless communication devices may experience interference transmissions from other wireless communication devices in the wireless network (e.g., based at least in part on the angular spread of beams transmitted by other wireless communication devices), which can lead to beam failures (e.g., uplink beam failure, downlink beam failure, etc.).
[0056] like Figure 3 As shown, the example wireless network 300 includes a BS 310-1 operating in full-duplex mode. The BS 310-1 can receive uplink 322 from the UE 320-2 and transmit downlink 324 to the UE 320-1. The UE 320-1 and UE 320-2 can operate in half-duplex mode. The BS 310-1 may experience downlink-to-uplink self-interference, at least in part, based on the downlink 324 transmitted to the UE 320-1 and the uplink 322 received from the UE 320-2. Furthermore, the BS 310-1 may also experience interference transmissions 326 from other wireless communication devices transmitting in the wireless network 300 (e.g., from the BS 310-2). Additionally, the UE 320-1 may experience interference transmissions 326 and 328 from other wireless communication devices transmitting in the wireless network 300 (e.g., from the UE 320-2, from the BS 310-2, etc.).
[0057] like Figure 4As shown, the example wireless network 400 includes a UE 420-1 operating in full-duplex mode. UE 420-1 can transmit uplink 422 to BS 410-1 and can receive downlink 424 from BS 410-1. In some aspects, BS 410-1 can operate in full-duplex mode. UE 420-1 may experience uplink-to-downlink self-interference at least in part based on the uplink 422 transmitted to BS 410-1 and the downlink 424 received from BS 410-1. Wireless network 400 may include other wireless communication devices, such as BS 410-2 and UE 420-2. BS 410-2 can transmit downlink 426 to UE 410-2. UE 420-1 may experience interference transmissions 428 and / or 430 at least in part based on the transmissions of BS 410-2 and / or UE 420-1. For example, a downlink transmitted (426) by BS410-2 may have an angular spread that could cause UE420-1 to receive an interfering transmission 428. Similarly, an uplink transmitted by UE 420-2 may have an angular spread that could cause UE 420-1 to receive an interfering transmission 430.
[0058] like Figure 5 As shown, the example wireless network 500 includes a UE 520-1 operating in full-duplex mode. UE 520-1 can transmit uplink 522 to BS 510-1 and receive downlink 524 from BS 510-2. UE 520-1 can include a multiple transmit and receive (multiple TRP) architecture. UE 520-1 can experience uplink-to-downlink self-interference, at least in part, based on uplink 522 transmitted to BS 510-1 and downlink 524 received from BS 510-2. BS 510-1 and BS 510-2 can operate in half-duplex mode. BS 510-2 can transmit downlink 526-528 to UE 520-2. In some aspects, UE 520-1 can experience one or more interfering transmissions, at least in part, based on transmissions from BS 510-1, BS 510-2, and / or UE 520-2.
[0059] As indicated above, Figure 3-5 Examples are provided. Other examples can be found in the reference. Figure 3-5 The examples described are different.
[0060] Figure 6This is a schematic diagram illustrating one or more examples 600 of a full-duplex type according to various aspects of this disclosure. As described above, full-duplex operation can involve communication with both an uplink (UL) and a downlink (DL) simultaneously (e.g., simultaneous transmission and reception). The uplink and downlink can share resources associated with the communication (e.g., time resources and / or frequency resources).
[0061] like Figure 6 As shown, full-duplex communication can be in-band full-duplex (IBFD) mode (e.g., including uplink and downlink modes sharing the same time and / or frequency resources). In some aspects, the IBFD mode can be a fully overlapped IBFD mode as shown at 620, such that downlink resources can completely overlap uplink resources (e.g., all uplink resources are shared with downlink resources). In some aspects, the fully overlapped IBFD mode as shown at 620 can have uplink resources with fully overlapped downlink resources. In some aspects, IBFD communication can be a partially overlapped IBFD mode as shown at 640, such that downlink resources do not completely overlap with uplink resources (e.g., only some uplink resources are shared with downlink resources).
[0062] In some aspects, full-duplex mode can be sub-band frequency division duplex (FDD) mode as shown at 660 (e.g., including uplink and downlink modes that share the same time resources but use different frequency resources). In some aspects, resources associated with the downlink and resources associated with the uplink can be separated in the frequency domain by guard bands (GBs) (e.g., frequency ranges not allocated to the uplink or downlink).
[0063] As indicated above, Figure 6 Examples are provided. Other examples can be found in the reference. Figure 6 The examples described are different.
[0064] Wireless communication standards or regulatory bodies can specify how radio spectrum is used. For example, 3GPP can specify how radio spectrum is used for 5G / NR radio access technologies and interfaces. As an example, a specification can indicate whether a frequency band is used as paired or unpaired spectrum. Frequency bands in paired spectrum can use a first frequency area for uplink communication and a second frequency area for downlink communication, where the first frequency area does not overlap with the second frequency area. For example, paired bands can have uplink and downlink operating bands configured to use non-overlapping frequency areas. Some deployments can use frequency division duplex (FDD) in paired bands. Examples of paired bands in NR include NR operating bands n1, n2, n3, n5, n7, n8, n12, n20, n25, and n28, as specified in 3GPP Technical Specification (TS) 38.101-1.
[0065] Unpaired frequency bands allow downlink and uplink operations to occur within the same frequency region (e.g., the same operating band). For example, unpaired frequency bands can be configured with uplink and downlink operating bands within the same frequency range. Some deployments can use time division duplexing (TDD) in unpaired frequency bands, where some time intervals (e.g., time slots, sub-time slots, etc.) are used for uplink communication, while other time intervals are used for downlink communication. In this case, depending on whether communication is performed in a downlink time slot, an uplink time slot, or a special time slot (in which downlink or uplink communication can be scheduled), essentially the entire bandwidth of the component carrier can be used for either downlink or uplink communication. Examples of unpaired frequency bands include NR operating bands n40, n41, and n50, as specified in 3GPP TS 38.101-1.
[0066] In some cases, using TDD in unpaired spectrum may be insufficient. For example, uplink transmit power may be limited, meaning the UE may not be able to transmit with sufficient power, thus failing to efficiently utilize the full bandwidth of the uplink time slots. This can be particularly problematic at the cell edges of larger cells. Furthermore, since a given time interval when using TDD can be used solely for uplink communication or solely for downlink communication, the use of TDD may introduce latency compared to schemes where uplink and downlink communication can be performed in the same time interval. However, in the case of FDD in unpaired spectrum, frequency domain resource allocation (FDRA) for the bandwidth portion (BWP) can be problematic due to the gap between the first and second frequency regions of the FDRA (e.g., due to the non-intersection of BWPs).
[0067] Figures 7A-7BThe top perspective view 700A and side perspective view 700B of a panel architecture for a full-duplex gNB according to one aspect of this disclosure are shown. Figures 7A-7B The panel architecture depicted includes panels #1 and #2, which can support simultaneous Tx and Rx operations and can help improve isolation to reduce self-interference (e.g., >50dB). In one example, panel #1 can be used for DL transmission at the two edges of the corresponding BWP, while panel #2 is used for UL reception at the middle of the corresponding BWP.
[0068] Figure 8 An example resource allocation 800 for an FDD BS and one or more UEs is illustrated according to one aspect of this disclosure. Specifically, time slots 805 and 810 are configured as SBFD time slots having a first disjoint BWP DL segment (e.g., 805-1 or 810-1 for time slots 805 and 810, respectively) and a second disjoint BWP DL segment (e.g., 805-2 or 810-2 for time slots 805 and 810, respectively). In some designs, the first and second BWP DL segments may be associated with DL transmissions to different UEs. The first and second disjoint BWP DL segments are separated by a BWP UL segment (e.g., PUSCH) and a guard band (GB). In some designs, the BWP UL segment may be associated with UL transmissions from one or more different UEs.
[0069] exist Figure 8 In China, resource allocation 800 is based on Figures 7A-7BThe underlying panel architecture is shown. For SBFD slots 805-810, in some designs, isolation greater than 40 dB can be set between the UL and DL BWP bands. In some designs, weighted overlap-addition (WOLA) processing (Rx-WOLA) at the receiver can be implemented to reduce the adjacent channel leakage power ratio (ACLR) with the UL BWP band. For example, ACLR is defined as the ratio of the power transmitted on a specified channel (e.g., the DL BWP band) to the power received in an adjacent radio channel (e.g., the UL BWP band) after the receive filter. In this case, WOLA processing can be used on the DL BWP band to reduce the ACLR to the UL BWP band (e.g., if too high, ACLR from the DL BWP band may interfere with transmissions on the UL BWP band). WOLA processing is a well-known time-domain windowing method used to improve the spectral content of cyclic prefix (CP) OFDM signals to support hybrid digital schemes (numerology) and asynchronous traffic at the receive filter. WOLA processing helps filter out interfering signals, thereby reducing ACLR. In some designs, an analog low-pass filter (LPF) can be used to improve the dynamic range of the analog-to-digital converter (ADC). In some designs, the Rx automatic gain control (AGC) state can be configured to improve the noise figure (NF). In some designs, the ACLR leakage of the digital integrated circuit (IC) can exceed 20 dB, and a nonlinear model can be configured for each Tx-Rx pair.
[0070] The Power Headroom Report (PHR) reports the headroom between the current UE transmit power (estimated power) and the nominal power. For example, the serving cell can use the PHR to estimate how much uplink bandwidth the UE is allowed to use for a specific subframe. The PHR can be triggered by PHR function configuration or reconfiguration, cell activation, periodicity, or by changes in path loss or by power backoff (P-MPRc) before the next periodic trigger of the PHR.
[0071] The gNB is aware of the PHR differences for different waveforms (e.g., CP-OFDM, DFT-S-OFDM, etc.). The UE's power headroom report can be based on the corresponding PUSCH transmission. For example, the packet headroom (PH) calculation for the PUSCH can be determined as follows:
[0072] PH=P cmax,c (i)-{10log 10 (M PUSCH,c (i))+P 0,c (j)+α c (j)·PL c (k)+Δ TF,c (i)+fc Equation 1 (i,l)}
[0073] Among them, P cmax It is the maximum transmit (or output) power of the configuration defined in 3GPP TS 28.101.
[0074] Figure 9A A PHR 900A of MAC CE is shown according to one aspect of this disclosure. Figure 9A In the configuration, specify the type 1 (or PUSCH) PH value for the uplink bandwidth from the UE to the PCell, and specify P. CMAX,f,c P CMAX,f,c This is the maximum transmit power allowed on the configured uplink bandwidth, and the PH value corresponds to the current (or instantaneous) transmit power and P. CMAX,f,c The difference between them.
[0075] In some design schemes, the pH value can be indexed as one of 64 pH levels, for example:
[0076] <![CDATA[ pH value ]]> <![CDATA[ pH level ]]> 0 POWER_HEADROOM_0 1 POWER_HEADROOM_1 2 POWER_HEADROOM_2 3 POWER_HEADROOM_3 … … 60 POWER_HEADROOM_60 61 POWER_HEADROOM_61 62 POWER_HEADROOM_62 63 POWER_HEADROOM_63
[0077] Table 1: pH value mapping You can map pH levels to pH ranges (in dB) sequentially, for example:
[0078]
[0079]
[0080] Table 2: pH Range Mapping
[0081] P CMAX,f,c It can also vary between cells and can be indexed to one of 64 nominal UE transmit power (PCMAX) levels, for example:
[0082] <![CDATA[ PCMAX value ]]> <![CDATA[ PCMAX level ]]> 0 PCMAX_C_00 1 PCMAX_C_01 2 PCMAX_C_02 … … 61 PCMAX_C_61 62 PCMAX_C_62 63 PCMAX_C_63
[0083] Table 3: PCMAX Value Mapping
[0084] The PCMAX level can be mapped sequentially to P. CMAX,f,c Range (unit: dB), for example:
[0085] <![CDATA[ PCMAX level ]]> <![CDATA[ P CMAX,f,c Range (unit: dB) ]]> PCMAX_C_00 <![CDATA[P CMAX,f,c <-29]]> PCMAX_C_01 <![CDATA[-29≤P CMAX,f,c <-28]]> PCMAX_C_02 <![CDATA[-28≤P CMAX,f,c <-27]]> … … PCMAX_C_61 <![CDATA[31≤P CMAX,f,c <32]]> PCMAX_C_62 <![CDATA[32≤P CMAX,f,c <33]]> PCMAX_C_63 <![CDATA[P CMAX,f,c ≥33]]>
[0086] Table 4: P CMAX,f,c Range mapping
[0087] Figure 9B The PHR 900B of MAC CE is shown as another aspect of this disclosure. Figure 9BIn this context, pH and P values are specified for multiple cells. CMAX,f,c For example, C i The field indicates the existence of the PH field for the serving cell with ServCellIndex i as specified in TS 38.331. i Setting the field to 1 indicates that the PH field of the serving cell of ServCellIndex i was reported. i Setting the field to 0 indicates that the PH field of the serving cell for ServCellIndex i has not been reported.
[0088] exist Figures 9A-9B In this context, each PH value in each PHR is reported as a number (see Tables 1 and 3 above, for example), which provides the maximum transmit power (P) that the UE can support. CMAX,f,c The difference between the actual transmit power and the actual transmit power. In some designs, the bandwidth associated with a specific cell may include different transmit powers, pH values, and / or P values. CMAX,f,c The value is associated with the subband. In some cases, a single PH value and / or a single P value is provided across the bandwidth. CMAX,f,c The values may not provide sufficient accuracy to mitigate self-interference at the gNB of FD-aware and / or FD-sensing UEs. Therefore, aspects of this disclosure relate to a power level controller (PHR) comprising pH values associated with multiple subbands of corresponding bandwidths used for uplink transmission, whereby these subbands are associated with different transmit power levels. These aspects can provide various technical advantages, such as finer-grained power control and improved management of self-interference for FD-aware and / or FD-enabled UEs.
[0089] Figure 10 An exemplary process 1000 for wireless communication according to one aspect of this disclosure is shown. Figure 10 The process 1000 is performed by a UE such as UE 120.
[0090] At point 1010, the UE (e.g., antennas 252a…252r, modulator / demodulators 254a…254r, Tx MIMO processor 266, transmit processor 264, etc.) may optionally send an indication to network components (e.g., serving cell or gNB, core network components, etc.) indicating the UE's ability to support subband power headroom (PHR) reports. In some designs, the UE's capability can be represented by the number of subbands the UE can report PHRs (e.g., 2, 3, 4, etc.).
[0091] At 1020, the UE (e.g., antennas 252a…252r, modulator / demodulators 254a…254r, MIMO detector 256, receiver processor 258, etc.) optionally receives at least one subband PHR reporting parameter from network components (e.g., serving cell or gNB, core network components, etc.). For example, the at least one subband PHR reporting parameter may include a condition that, when met, will trigger the UE to transmit a subband PHR. In some designs, the at least one subband PHR reporting parameter may include: the difference in UL transmit power for each subband with a minimum threshold, the difference in PH values for each subband, the minimum bandwidth for each subband that the reported PHR should satisfy, or any combination thereof. In some designs, the at least one subband PHR reporting parameter may be configured based on (in response to) an optional UE capability indication from 1010.
[0092] At 1030, the UE (e.g., controller / processor 280, etc.) determines the transmit power configuration for uplink transmission over a first bandwidth, which includes a first subband and a second subband. The first subband is associated with a first set of transmit power levels, and the second subband is associated with a second set of transmit power levels that are different from the first set of transmit power levels. In some designs, at least one additional subband may also be part of the first bandwidth. In some designs, uplink transmission is associated with (or corresponds to) PUSCH or SRS.
[0093] At 1040, the UE (e.g., antennas 252a…252r, modulator / demodulators 254a…254r, Tx MIMO processor 266, transmit processor 264, etc.) transmits a PHR indicating first and second subband margin values associated with the first and second subbands, respectively. In some designs, the PHR may include the first and second subband margin values. In other designs, the PHR may include information capable of deriving the first and second margin values (e.g., differential reporting, such as including the first subband margin value incorporating the offset between the first and second subband margin values, etc.). As will be described in more detail below, the subband reporting the PHR can be defined in various ways (e.g., by transmit power, by pH value, etc.). In some designs, the PHR can be transmitted as a MAC CE (e.g., from...). Figures 9A-9B The example shown is a modified MAC CE that supports PH value reporting for each subband of the corresponding cell.
[0094] Figure 11 An exemplary process 1100 for wireless communication according to one aspect of this disclosure is shown. Figure 10The process 1100 is performed by a network component such as BS 110 or a core network component such as network controller 130.
[0095] At 1110, network components (e.g., antennas 234a…234r, modulators / demodulators 232a…232r, MIMO detector 236, receiver processor 238, communication unit 294, etc.) optionally receive from the UE an indication of the UE's ability to support subband power headroom (PHR) reports. In some designs, the UE capability can be represented by the number of subbands the UE is able to report PHRs (e.g., 2, 3, 4, etc.).
[0096] At 1120, network components (e.g., antennas 234a…234r, modulators / demodulators 232a…232r, Tx MIMO processor 230, transmit processor 220, communication unit 294, etc.) may optionally send at least one subband PHR reporting parameter to the UE. For example, the at least one subband PHR reporting parameter may include a condition that, when met, will trigger the UE to send a subband PHR. In some designs, the at least one subband PHR reporting parameter may include: the difference in UL transmit power for each subband with a minimum threshold, the difference in PH values for each subband, the minimum bandwidth for each subband that the reported PHR should satisfy, or any combination thereof. In some designs, the at least one subband PHR reporting parameter may be configured based on (in response to) an optional UE capability indication from 1110.
[0097] At 1130, network components (e.g., antennas 234a…234r, modulators / demodulators 232a…232r, MIMO detector 236, receiver processor 238, communication unit 294, etc.) receive a PHR from the UE. This PHR indicates first and second subband margin values associated with a first subband and a second subband, respectively. The first and second subbands include at least a portion of a first bandwidth associated with transmit power configurations for uplink transmissions from the UE. The first subband is associated with a first set of transmit power levels, and the second subband is associated with a second set of transmit power levels different from the first set. For example, the PHR received at 1130 could correspond to... Figure 10The PHR transmitted by the UE at point 1040. In some designs, the PHR may include first and second subband margin values. In other designs, the PHR may include information capable of deriving the first and second margin values (e.g., differential reporting, such as including the first subband margin value by incorporating the offset between the first and second subband margin values, etc.). In some designs, at least one additional subband may also be part of the first bandwidth. In some designs, uplink transmissions are associated with (or correspond to) PUSCH or SRS.
[0098] At 1140, network components (e.g., controller / processor 240, etc.) perform power control functions associated with the UE, at least in part, based on the PHR. In some designs, in addition to performing the power control function at 1140 per subband rather than per bandwidth, this power control function (e.g., increasing or decreasing transmit power via one or more power control commands) can resemble typical power control functions performed based on a conventional PHR, and thus can be performed with finer granularity (i.e., with higher precision).
[0099] refer to Figure 10-11 In some designs, PHR can be associated with PUSCH transmission (Type 1), thus determining the PH value as follows:
[0100]
[0101] Among them, P O_PUSCH,b,f,c M and α can be specific to the corresponding subband.
[0102] refer to Figure 10-11 In some design schemes, PHR can be associated with SRS transmission (Type 3), and the pH value is determined as follows:
[0103] PH type3,b,f,c (i,q s ) = P CMAX,f,c (i)-{P O_SRS,b,f,c (q s )+10log 10 (2 μ ·M SRS,b,f,c (i))+α SRS,b,f,c (q s )·PL b,f,c (q d )+h b,f,c (i)} Equation 3
[0104] Among them, P O_SRS,b,f,c M and α can be specific to the corresponding subband.
[0105] Referring to Equations 2-3, α can be used to adapt to the modulation and coding scheme (MCS) of each subband (e.g., a higher MCS may require higher transmit power). Therefore, if the UE uses different MCS in different subbands, α can be configured differently for each subband.
[0106] Figure 12 This illustrates a subband PHR configuration 1200 associated with bandwidth 1205 for uplink transmission, according to one aspect of this disclosure. Figure 12 In this context, bandwidth 1205 may include three sub-bands, denoted as SB1, SB2, and SB3. SB1 and SB3 are 'edge' sub-bands, while SB2 is the 'center' sub-band. For example, bandwidth 1205 could correspond to... Figure 8 The PUSCH in time slots 805 or 810, where SB1 and SB3 (in frequency) are closer to the corresponding top / bottom DL data sections (separated by the corresponding guard bands). Figure 12 In this context, the first subband PHR 1210 (or subband pH value) can be associated with SB1, the second subband PHR 1215 (or subband pH value) can be associated with SB2, and the third subband PHR 1220 (or subband pH value) can be associated with SB3.
[0107] Reference Figure 10-11 In some designs, the first set of transmit power levels includes multiple different transmit power levels. In other designs, the second set of transmit power levels may also include multiple different transmit power levels. In other words, the subband does not need to encompass a common transmit power across the entire frequency range. In this case, in one example, a representative PH value (and / or PCMAX value) can be provided for the subband in the PHR. In a specific example, the first subband margin value associated with the first subband can be based on the average of the multiple different transmit power levels (e.g., a weighted average based on the proportion of each transmit power on each subband). See below. Figure 13 This describes an example of such transmit power configuration.
[0108] Figure 13 This illustrates a subband PHR configuration 1300 associated with bandwidth 1305 for uplink transmission, according to another aspect of this disclosure. Figure 13 In this context, bandwidth 1305 may include three sub-bands, denoted as SB1, SB2, and SB3. SB1 and SB3 are 'edge' sub-bands, while SB2 is the 'center' sub-band. For example, bandwidth 1305 could correspond to... Figure 8 The PUSCH in time slots 805 or 810, where SB1 and SB3 (in frequency) are closer to the corresponding top / bottom DL data sections (separated by the corresponding guard bands). Figure 13 In this context, the first subband PHR 1310 (or subband pH value) can be associated with SB1, the second subband PHR 1315 (or subband pH value) can be associated with SB2, and the third subband PHR 1320 (or subband pH value) can be associated with SB3.
[0109] refer to Figure 13 SB1 is associated with transmit powers TX1 and TX2, SB2 with transmit powers TX3, TX4, and TX5, and SB3 with transmit powers TX6 and TX7. In this example, the transmit power is typically lower in the edge subbands (SB1 and SB3) and higher in the center subband (SB2). This transmit power configuration is suitable for use in adjacent bandwidths (e.g., such as...). Figure 8 This is particularly advantageous for FD-enabled UEs that are subject to self-interference on the top / bottom DL data portions (shown in time slots 805-810). Therefore, specifically by reducing the transmit power at the edge of the UL bandwidth 1305, self-interference with respect to the UE's DL data in adjacent bandwidth portions can be reduced and / or minimized.
[0110] Reference Figure 10-11 In some designs, the first and second subbands are each associated with a corresponding common transmit power level. In other words, the first and second sets of transmit power levels can include a single corresponding transmit power. See below for reference. Figure 14 An example describing this transmit power configuration.
[0111] Figure 14 This illustrates a subband PHR configuration 1400 associated with bandwidth 1405 for uplink transmission, according to another aspect of this disclosure. Figure 14 In this context, bandwidth 1405 may include three sub-bands, denoted as SB1, SB2, and SB3. SB1 and SB3 are 'edge' sub-bands, while SB2 is the 'center' sub-band. For example, bandwidth 1405 could correspond to... Figure 8 The PUSCH in time slots 805 or 810, where SB1 and SB3 (in frequency) are closer to the corresponding top / bottom DL data sections (separated by the corresponding guard bands). Figure 14 In this context, the first subband PHR 1410 (or subband pH value) can be associated with SB1, the second subband PHR 1415 (or subband pH value) can be associated with SB2, and the third subband PHR 1420 (or subband pH value) can be associated with SB3.
[0112] refer to Figure 14SB1 is associated with transmit power TX1, SB2 with transmit power TX2, and SB3 with transmit power TX3. In this example, the transmit power is typically lower in the edge subbands (SB1 and SB3) and typically higher in the center subband (SB2). This transmit power configuration is suitable for use in adjacent bandwidths (e.g., such as...) Figure 8 This is particularly advantageous for FD-enabled UEs that are subject to self-interference on the top / bottom DL data portions (shown in time slots 805-810). Therefore, by reducing the transmit power at the edge of the UL bandwidth 1405, self-interference with respect to the UE's DL data in adjacent bandwidth portions can be reduced and / or minimized.
[0113] refer to Figure 10-11 In some design schemes, some sub-bands can be coupled with, for example... Figure 13 Multiple transmit powers are associated with each other, while other subbands can be associated with, for example, the transmit power of the subband. Figure 14 It is associated with the common transmit power.
[0114] Reference Figure 10-11 In some design schemes, the first sub-band and the second sub-band are each associated with a corresponding common sub-band margin value. Regarding Figure 12 As an example, different portions of UL bandwidth 1205 can be associated with both different instantaneous transmit power and different maximum transmit power (PCMAX), but their respective pH values can be the same. In this case, for the purposes of the PHR report, these portions can be aggregated into a single subband. In some designs, only contiguous bandwidth portions can be combined into subbands in this way. In other designs, depending on the characteristics of the subbands in the PHR, even discontinuous bandwidth segments (with the same pH value) can be combined into the corresponding subbands.
[0115] Reference Figure 10-11In some design schemes, subbands can be defined in the PHR via start and length indicators. For example, SB1 is from RB1_start to RB1_start+Length1, SB2 is from RB2_start to RB2_start+Length2, and SB3 is from RB3_start to RB3_start+Length3. In other design schemes, the first subband is defined by the start and length, the second subband is defined by the length from the end of subband 1 to the second subband, and so on. For example, SB1 is from RB1_start to RB1_start+Length1, SB2 is from RB1_start+Length1 to RB1_start+Length1+Length2, and SB3 is from RB1_start+Length1+Length2 to RB1_start+Length1+Length2+Length3. Such subband definitions can be used in scenarios where subbands include adjacent frequency domain resources.
[0116] Reference Figure 10-11 In some design schemes as described above, the first bandwidth is associated with a second bandwidth (e.g., the downlink transmission of the same UE (i.e., a UE with FD capability)). Figure 8 The top or bottom DL data portions in time slots 805-810 are adjacent (e.g., conforming to a guard band). In this case, the UE will experience more self-interference on uplink transmissions in sub-bands closer to the second bandwidth. Therefore, if the first sub-band is closer to the second bandwidth, the first set of transmit power levels associated with the first sub-band can be lower relative to the second set of transmit power levels associated with the second sub-band. Figure 13-14 This scene is depicted in both Chinese and English.
[0117] Reference Figure 10-11 In other design schemes, the UE can be 'FD-aware' rather than an FD-capable UE (or it can be FD-capable but cannot schedule DL data for any bandwidth adjacent to the UL bandwidth). An FD-aware UE knows that adjacent bandwidths (e.g., subject to guard bands) are scheduled by the same serving cell for DL transmissions for another UE. Therefore, there will be more interference at the serving cell compared to the UE's uplink transmission at the edge subband (which is frequency-closer to that DL transmission). In this case, it is assumed that the first subband (e.g., SB1 or SB3) is closer to the second bandwidth (e.g., Figure 8 (The top or bottom DL data portion in time slots 805-810). Figure 13-14In comparison, the first set of transmit power levels associated with the first sub-band can be higher than the second set of transmit power levels associated with the second sub-band, such as... Figure 15 As shown in the image.
[0118] Figure 15 This illustrates a subband PHR configuration 1500 associated with bandwidth 1505 for uplink transmission, according to another aspect of this disclosure. Figure 15 In this context, bandwidth 1505 can include three sub-bands, denoted as SB1, SB2, and SB3. SB1 and SB3 are 'edge' sub-bands, while SB2 is the 'center' sub-band. For example, bandwidth 1505 could correspond to... Figure 8 The PUSCH in time slots 805 or 810, where SB1 and SB3 (in frequency) are closer to the corresponding top / bottom DL data sections (separated by the corresponding guard bands). Figure 15 In this context, the first subband PHR 1510 (or subband pH value) can be associated with SB1, the second subband PHR 1515 (or subband pH value) can be associated with SB2, and the third subband PHR 1520 (or subband pH value) can be associated with SB3.
[0119] ]refer to Figure 15 SB1 is associated with transmit powers TX1 and TX2, SB2 with transmit powers TX3, TX4, and TX5, and SB3 with transmit powers TX6 and TX7. In this example, the transmit power is typically higher in the edge subbands (SB1 and SB3) and lower in the center subband (SB2). Such a transmit power configuration is particularly advantageous for FD-aware UEs, where the edge subbands (SB1 / SB3) have adjacent bandwidths at the serving cell (or gNB) (e.g., ...). Figure 8 On the top / bottom DL data portion (shown in time slots 805-810), DL transmissions to another UE relative to the serving cell are interfered with. Therefore, by specifically increasing the transmit power at the edge of the UL bandwidth 1505, interference related to DL data transmission at the edge subband of the UE and at the gNB can be reduced and / or minimized.
[0120] Figure 16 The PHR 1600 of MAC CE is shown according to one aspect of this disclosure. Figure 9B In this context, PH and P values can be specified for up to seven (7) subbands of bandwidth associated with the corresponding cell. CMAX,f,c For example, if S i =1, then report the pH value (and associated P) for subband i. CMAX,f,c (value), and if S i =0, then the pH value (and associated P) will not be reported for subband i.CMAX,f,c value).
[0121] Figure 17 This is a conceptual data flow diagram 1700 illustrating the data flow between different units / components in exemplary devices 1702 and 1780 according to one aspect of this disclosure. Device 1702 may be a UE (e.g., UE 120) communicating with device 1780, and device 1780 may be a base station (e.g., base station 110) or a core network component (e.g., network controller 130).
[0122] Device 1702 includes a transmitting component 1704, which can correspond to, for example... Figure 2 The transmitter circuitry in the UE 120 shown includes a controller / processor 280, antennas 252a…252r, modulators 254a…254r, a TX MIMO processor 266, and a TX processor 264. The device 1702 also includes a sub-band PHR assembly 1706, which can correspond to... Figure 2 The processor circuitry in the UE 120 shown includes a controller / processor 280, etc. The device 1702 also includes a receiving component 1708, which can correspond to, for example... Figure 2 The receiver circuitry in the UE 120 shown includes a controller / processor 280, antennas 252a…252r, demodulators 254a…254r, a MIMO detector 256, and an RX processor 258.
[0123] Device 1780 includes receiving component 1782, which can correspond to, for example... Figure 2 The receiver circuitry in BS 110 shown includes a controller / processor 240, antennas 234a…234r, demodulators 232a…232r, a MIMO detector 236, an RX processor 238, and a communication unit 244. The device 1780 also includes a sub-band PHR assembly 1784, which can correspond to, for example… Figure 2 The processor circuitry in the BS 110 or network controller 130 shown includes controller / processor 240 or controller / processor 290. The device 1780 also includes a transmitting component 1786, which can correspond to, for example... Figure 2 The transmitting circuit in the BS 110 or network controller 130 shown includes, for example, a controller / processor 240, antennas 234a…234r, modulators 232a…232r, a Tx MIMO processor 230, a Tx processor 220, a communication unit 244, a communication unit 294, etc.
[0124] refer to Figure 17The transmitting component 1704 sends a PHR with a subband PH value to the receiving component 1782 (e.g., sent in MACCE). Optionally, the subband PHR component 1784 sends a UL power control command to the receiving component 1708 based on the PHR. This PHR may be associated with various uplink service data (e.g., SRS, PUSCH, etc.), which the transmitting component 1704 may optionally send to the receiving component 1782. The subband PHR component 1706 may further optionally instruct the transmitting component 1704 to send UE PHR capabilities (e.g., for subband PHL reporting) to the receiving component 1782. The subband PHR component 1784 may optionally instruct the transmitting component 1786 to send subband PHR reporting parameters to the receiving component 1708 based on the UE PHR capabilities, which can then be used to manage PHR transmission at the subband PHL component 1706.
[0125] One or more components of apparatus 1702 and apparatus 1780 can perform Figure 10-11 Each box in the algorithm of the aforementioned flowchart. Therefore, Figure 10-11 Each block in the aforementioned flowchart can be executed by a component, and apparatus 1702 and apparatus 1780 may include one or more of these components. These components may be one or more hardware components specifically configured to perform the stated process / algorithm, implemented by a processor configured to perform the stated process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.
[0126] Figure 18 This is a schematic diagram 1800 illustrating an example of a hardware implementation of a device 1702 employing a processing system 1814. The processing system 1814 can be implemented using a bus architecture, typically represented as bus 1824. Depending on the specific application and overall design constraints of the processing system 1814, bus 1824 may include any number of interconnect buses and bridges. Bus 1824 will link together various circuits including one or more processors and / or hardware components (represented by processor 1804, component 1704, 1706, and 1708), and computer-readable medium / memory 1806. Bus 1824 may also link various other circuits such as timing sources, peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore not described further.
[0127] Processing system 1814 may be coupled to transceiver 1810. Transceiver 1810 is coupled to one or more antennas 1820. Transceiver 1810 provides a unit for communicating with various other devices via a transmission medium. Transceiver 1810 receives signals from the one or more antennas 1820, extracts information from the received signals, and provides the extracted information to processing system 1814 (specifically, receiving component 1708). Furthermore, transceiver 1810 receives information from processing system 1814 (specifically, transmitting component 1704) and, based on the received information, generates signals to be applied to the one or more antennas 1820. Processing system 1814 includes processor 1804 coupled to computer-readable medium / memory 1806. Processor 1804 is responsible for general processing, including executing software stored on computer-readable medium / memory 1806. When the software is executed by processor 1804, it causes processing system 1814 to perform the various functions described above for any particular device. The computer-readable medium / memory 1806 can also be used to store data manipulated when the processor 1804 executes software. The processing system 1814 also includes at least one of components 1704, 1706, and 1708. These components may be software components running in the processor 1804, residing in / stored in the computer-readable medium / memory 1806, one or more hardware components coupled to the processor 1804, or some combination thereof. Figure 2 The components of UE 120 may include at least one of TX processor 264, RX processor 258 and / or controller / processor 280 and / or memory 282.
[0128] In one configuration, an apparatus 1702 (e.g., a UE) for wireless communication includes: a unit for determining a transmit power configuration for uplink transmission over a first bandwidth, the first bandwidth including a first subband and a second subband, the first subband being associated with a first set of transmit power levels and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and a unit for transmitting a power headroom report (PHR) indicating a first subband headroom value and a second subband headroom value associated with the first subband and the second subband, respectively.
[0129] The aforementioned units may be one or more of the aforementioned components of the device 1702 and / or the processing system 1814 of the device 1702, which are configured to perform the functions described in the aforementioned units. As described above, the processing system 1814 may include at least one of the TX processor 264, the RX processor 258, and / or the controller / processor 280.
[0130] Figure 19This is a schematic diagram 1900 illustrating an example of a hardware implementation of a device 1780 employing a processing system 1914. The processing system 1914 can be implemented using a bus architecture, typically represented as bus 1924. Depending on the specific application and overall design constraints of the processing system 1914, bus 1924 may include any number of interconnect buses and bridges. Bus 1924 links together various circuits including one or more processors and / or hardware components (represented by processors 1904, components 1782, 1784, and 1786), and computer-readable medium / memory 1906. Bus 1924 may also link various other circuits such as timing sources, peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore not described further.
[0131] Processing system 1914 may be coupled to transceiver 1910. Transceiver 1910 is coupled to one or more antennas 1920. Transceiver 1910 provides a unit for communicating with various other devices via a transmission medium. Transceiver 1910 receives signals from the one or more antennas 1920, extracts information from the received signals, and provides the extracted information to processing system 1914 (specifically, receiving component 1782). Furthermore, transceiver 1910 receives information from processing system 1914 (specifically, transmitting component 1786) and, based on the received information, generates signals to be applied to the one or more antennas 1920. Processing system 1914 includes processor 1906 coupled to computer-readable medium / memory 1906. Processor 1906 is responsible for general processing, including executing software stored on computer-readable medium / memory 1906. When the software is executed by processor 1904, processing system 1914 performs the various functions described above for any particular device. The computer-readable medium / memory 1906 can also be used to store data manipulated when the processor 1904 executes software. The processing system 1914 also includes at least one of components 1782, 1784, and 1786. These components may be software components running in the processor 1904, residing in / stored in the computer-readable medium / memory 1906, one or more hardware components coupled to the processor 1904, or some combination thereof. Figure 2 The components of BS 110 or network controller 130 may include at least one of TX processor 220, RX processor 238, controller / processor 240, communication unit 294, controller / processor 290 and / or memory 292 and / or memory 242.
[0132] In one configuration, the apparatus 1780 for wireless communication (e.g., a BS or a core network component such as network controller 130) may include: a unit for receiving a power headroom report (PHR) from a user equipment (UE), the PHR including a first subband headroom value associated with a first subband and a second subband headroom value associated with a second subband, the first and second subbands including at least a portion of a first bandwidth associated with a transmit power configuration for uplink transmissions from the UE, the first subband being associated with a first set of transmit power levels and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and a unit for performing power control functions associated with the UE, at least in part based on the PHR.
[0133] The aforementioned units may be one or more of the aforementioned components of the device 1780 and / or the processing system 1914 of the device 1780, which are configured to perform the functions described in the aforementioned units. As described above, the processing system 1914 may include at least one of the TX processor 220, the RX processor 238, and the controller / processor 240.
[0134] As can be seen in the detailed description above, different features are combined in one example. This manner of disclosure should not be construed as meaning that the exemplary clauses have more features than those explicitly mentioned in each clause. Rather, aspects of this disclosure may include fewer features than all the features of a single exemplary clause disclosed. Therefore, the following clauses should be regarded as incorporated into the specification, where each clause may serve as a separate example. Although each dependent clause may refer in the clause to a specific combination with one of the other clauses, aspects of that dependent clause are not limited to that specific combination. It should be understood that other example clauses may also include combinations of aspects of a dependent clause with the subject matter of any other dependent or independent clause, or any feature with other dependent and independent clauses. Unless expressly stated or readily inferred that a particular combination is not desired, aspects of this disclosure expressly include such combinations (e.g., contradictory aspects, such as defining an element as both an insulator and a conductor). Furthermore, even if a clause does not directly depend on an independent clause, it is intended that aspects of that clause be included in any other independent clause.
[0135] Implementation examples are described in the following numbered clauses:
[0136] Clause 1. A method of operating a user equipment (UE), comprising: determining a transmit power configuration for uplink transmission on a first bandwidth, the first bandwidth including a first subband and a second subband, the first subband being associated with a first set of transmit power levels and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and transmitting a power headroom report (PHR), the PHR indicating a first subband headroom value and a second subband headroom value associated with the first subband and the second subband, respectively.
[0137] Clause 2, the method described in Clause 1, wherein the uplink transmission is associated with a Physical Uplink Shared Channel (PUSCH).
[0138] Clause 3. The method according to any one of Clauses 1 to 2, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0139] Clause 4. The method according to any one of Clauses 1 to 3, wherein the first set of transmit power levels comprises a plurality of different transmit power levels.
[0140] Clause 5, the method according to Clause 4, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0141] Clause 6. The method according to any one of Clauses 1 to 5, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0142] Clause 7. The method according to any one of Clauses 1 to 6, wherein the first sub-band and the second sub-band are each associated with a corresponding common sub-band margin value.
[0143] Clause 8. The method according to any one of Clauses 1 to 7, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0144] Clause 9. The method according to any one of Clauses 1 to 8, wherein the first bandwidth is adjacent to a second bandwidth associated with a downlink transmission of another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0145] Clause 10, the method described under any one of Clauses 1 to 9, further comprises: sending an indication to the network component of the UE's ability to support a subband power margin value report.
[0146] Clause 11. The method according to any one of Clauses 1 to 10 further comprises: receiving at least one subband PHR report parameter from a network component, wherein the transmission is based on the at least one subband PHR report parameter.
[0147] Clause 12, the method according to any one of Clauses 1 to 11, wherein the PHR is sent via a Media Access Control (MAC) Command Element (CE).
[0148] Clause 13. A method of operating a network component, comprising: receiving a power headroom report (PHR) from a user equipment (UE), the PHR indicating a first subband headroom value and a second subband headroom value respectively associated with a first subband and a second subband, the first subband and the second subband including at least a portion of a first bandwidth associated with transmit power configuration of uplink transmissions from the UE, the first subband being associated with a first set of transmit power levels, and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and performing a power control function associated with the UE, at least in part based on the PHR.
[0149] Clause 14. The method according to Clause 13, wherein the uplink transmission is associated with a Physical Uplink Shared Channel (PUSCH).
[0150] Clause 15. The method according to any one of Clauses 13 to 14, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0151] Clause 16. The method according to any one of Clauses 13 to 15, wherein the first set of transmit power levels comprises a plurality of different transmit power levels.
[0152] Clause 17. The method according to Clause 16, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0153] Clause 18. The method according to any one of Clauses 13 to 17, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0154] Clause 19. The method according to any one of Clauses 13 to 18, wherein the first sub-band and the second sub-band are each associated with a corresponding common sub-band margin value.
[0155] Clause 20. The method according to any one of Clauses 13 to 19, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0156] Clause 21. The method according to any one of Clauses 13 to 20, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0157] Clause 22, the method described under any one of Clauses 13 to 21, further comprises: receiving from the UE an indication of the UE's ability to support a subband power margin value report.
[0158] Clause 23. The method according to any one of Clauses 13 to 22 further comprises: sending at least one subband PHR report parameter to the UE, wherein the reception is based on the at least one subband PHR report parameter.
[0159] Clause 24. The method according to any one of Clauses 13 to 23, wherein the PHR is received via a Media Access Control (MAC) Command Element (CE).
[0160] Clause 25. A user equipment (UE) comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: determine a transmit power configuration for uplink transmission over a first bandwidth, the first bandwidth comprising a first subband and a second subband, the first subband being associated with a first set of transmit power levels and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and transmit a power headroom report (PHR) via the at least one transceiver, the PHR indicating a first subband headroom value and a second subband headroom value associated with the first subband and the second subband, respectively.
[0161] Clause 26, the UE as described in Clause 25, wherein the uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
[0162] Clause 27. The UE as described in any one of Clauses 25 to 26, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0163] Clause 28. The UE as described in any one of Clauses 25 to 27, wherein the first set of transmit power levels comprises a plurality of different transmit power levels.
[0164] Clause 29. The UE as described in Clause 28, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0165] Clause 30, the UE as described in any one of Clauses 25 to 29, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0166] Clause 31, the UE as described in any one of Clauses 25 to 30, wherein the first subband and the second subband are each associated with a corresponding common subband margin value.
[0167] Clause 32. A UE according to any one of Clauses 25 to 31, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0168] Clause 33. A UE according to any one of Clauses 25 to 32, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0169] Clause 34. The UE as described in any one of Clauses 25 to 33, wherein the at least one processor is further configured to: transmit, via the at least one transceiver, an indication to the network component of the UE's ability to support subband power margin value reporting.
[0170] Clause 35. The UE according to any one of Clauses 25 to 34, wherein the at least one processor is further configured to: receive at least one subband PHR report parameter from a network component via the at least one transceiver, wherein the transmission is based on the at least one subband PHR report parameter.
[0171] Clause 36, the UE as described in any one of Clauses 25 to 35, wherein the PHR is transmitted via a Media Access Control (MAC) Command Element (CE).
[0172] Clause 37. A network component comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: receive a power headroom report (PHR) from a user equipment (UE) via the at least one transceiver, the PHR indicating a first subband headroom value and a second subband headroom value respectively associated with a first subband and a second subband, the first subband and the second subband including at least a portion of a first bandwidth associated with a transmit power configuration for uplink transmissions from the UE, the first subband being associated with a first set of transmit power levels, and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and perform a power control function associated with the UE, at least in part based on the PHR.
[0173] Clause 38, the network component described in Clause 37, wherein the uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
[0174] Clause 39. A network component as described in any of Clauses 37 to 38, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0175] Clause 40. A network component according to any one of Clauses 37 to 39, wherein the first set of transmit power levels includes a plurality of different transmit power levels.
[0176] Clause 41, the network component according to Clause 40, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0177] Clause 42. A network component according to any one of Clauses 37 to 41, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0178] Clause 43. A network component according to any one of Clauses 37 to 42, wherein the first subband and the second subband are each associated with a corresponding common subband margin value.
[0179] Clause 44. A network component according to any one of Clauses 37 to 43, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0180] Clause 45. A network component according to any one of Clauses 37 to 44, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0181] Clause 46. A network component according to any one of Clauses 37 to 45, wherein the at least one processor is further configured to: receive from the UE via the at least one transceiver an indication of the UE's ability to support subband power margin value reports.
[0182] Clause 47. A network component according to any one of Clauses 37 to 46, wherein the at least one processor is further configured to: transmit at least one subband PHR report parameter to the UE via the at least one transceiver, wherein the reception is based on the at least one subband PHR report parameter.
[0183] Clause 48. A network component pursuant to any one of Clauses 37 to 47, wherein the PHR is received via a Media Access Control (MAC) Command Element (CE).
[0184] Clause 49. A user equipment (UE) includes: a unit for determining a transmit power configuration for uplink transmission over a first bandwidth, the first bandwidth including a first subband and a second subband, the first subband being associated with a first set of transmit power levels and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and a unit for transmitting a power headroom report (PHR), the PHR indicating a first subband headroom value and a second subband headroom value associated with the first subband and the second subband, respectively.
[0185] Clause 50, the UE as described in Clause 49, wherein the uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
[0186] Clause 51, the UE as described in any one of Clauses 49 to 50, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0187] Clause 52, the UE as described in any one of Clauses 49 to 51, wherein the first set of transmit power levels comprises a plurality of different transmit power levels.
[0188] Clause 53, the UE as described in Clause 52, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0189] Clause 54. The UE as described in any one of Clauses 49 to 53, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0190] Clause 55, the UE as described in any one of Clauses 49 to 54, wherein the first subband and the second subband are each associated with a corresponding common subband margin value.
[0191] Clause 56. A UE according to any one of Clauses 49 to 55, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0192] Clause 57. A UE according to any one of Clauses 49 to 56, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0193] Clause 58, the UE as described in any one of Clauses 49 to 57, further includes: a unit for sending an indication to a network component of the UE's ability to support a subband power margin value report.
[0194] Clause 59. The UE according to any one of Clauses 49 to 58 further includes: a unit for receiving at least one subband PHR report parameter from a network component, wherein the transmission is based on the at least one subband PHR report parameter.
[0195] Clause 60, the UE as described in any one of Clauses 49 to 59, wherein the PHR is transmitted via a Media Access Control (MAC) Command Element (CE).
[0196] Clause 61. A network component includes: a unit for receiving a power headroom report (PHR) from a user equipment (UE), the PHR indicating a first subband headroom value and a second subband headroom value respectively associated with a first subband and a second subband, the first subband and the second subband including at least a portion of a first bandwidth associated with a transmit power configuration for uplink transmissions from the UE, the first subband being associated with a first set of transmit power levels, and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and a unit for performing a power control function associated with the UE, at least in part based on the PHR.
[0197] Clause 62, the network component as described in Clause 61, wherein the uplink transmission is associated with a Physical Uplink Shared Channel (PUSCH).
[0198] Clause 63. A network component according to any one of Clauses 61 to 62, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0199] Clause 64. A network component according to any one of Clauses 61 to 63, wherein the first set of transmit power levels comprises a plurality of different transmit power levels.
[0200] Clause 65, the network component as described in Clause 64, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0201] Clause 66. A network component according to any one of Clauses 61 to 65, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0202] Clause 67. A network component according to any one of Clauses 61 to 66, wherein the first subband and the second subband are each associated with a corresponding common subband margin value.
[0203] Clause 68. A network component according to any one of Clauses 61 to 67, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0204] Clause 69. A network component according to any one of Clauses 61 to 68, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0205] Clause 70, the network component described in any one of Clauses 61 to 69, further includes: a unit for receiving from the UE an indication of the UE's ability to support a subband power margin value report.
[0206] Clause 71. The network component according to any one of Clauses 61 to 70 further includes: a unit for sending at least one subband PHR report parameter to the UE, wherein the reception is based on the at least one subband PHR report parameter.
[0207] Clause 72, the network component described in any one of Clauses 61 to 71, wherein the PHR is received via a Media Access Control (MAC) Command Element (CE).
[0208] Clause 73. A non-transitory computer-readable medium storing computer-executable instructions that, when executed by a user equipment (UE), cause the UE to: determine a transmit power configuration for uplink transmission over a first bandwidth, the first bandwidth comprising a first subband and a second subband, the first subband being associated with a first set of transmit power levels and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and transmit a power headroom report (PHR) indicating a first subband headroom value and a second subband headroom value associated with the first subband and the second subband, respectively.
[0209] Clause 74. The non-transitory computer-readable medium as described in Clause 73, wherein the uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
[0210] Clause 75. A non-transitory computer-readable medium as described in any of Clauses 73 to 74, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0211] Clause 76. A non-transitory computer-readable medium as described in any one of Clauses 73 to 75, wherein the first set of transmit power levels comprises a plurality of different transmit power levels.
[0212] Clause 77. A non-transitory computer-readable medium as described in Clause 76, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0213] Clause 78. A non-transitory computer-readable medium as described in any one of Clauses 73 to 77, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0214] Clause 79. A non-transitory computer-readable medium as described in any of Clauses 73 to 78, wherein the first sub-band and the second sub-band are each associated with a corresponding common sub-band margin value.
[0215] Clause 80. A non-transitory computer-readable medium according to any one of Clauses 73 to 79, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0216] Clause 81. A non-transitory computer-readable medium according to any one of Clauses 73 to 80, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0217] Clause 82. A non-transitory computer-readable medium pursuant to any one of Clauses 73 to 81, wherein the one or more instructions further cause the UE to send an indication to a network component of the UE's ability to support a subband power margin value report.
[0218] Clause 83. A non-transitory computer-readable medium pursuant to any one of Clauses 73 to 82, wherein the one or more instructions further cause the UE to receive at least one subband PHR report parameter from a network component, wherein the transmission is based on the at least one subband PHR report parameter.
[0219] Clause 84. A non-transitory computer-readable medium as described in any one of Clauses 73 to 83, wherein the PHR is transmitted via a Media Access Control (MAC) command element (CE).
[0220] Clause 85. A non-transitory computer-readable medium storing computer-executable instructions, which, when executed by a network component, cause the network component to: receive a power headroom report (PHR) from a user equipment (UE), the PHR indicating first subband headroom values and second subband headroom values respectively associated with a first subband and a second subband, the first subband and the second subband including at least a portion of a first bandwidth associated with a transmit power configuration for uplink transmissions from the UE, the first subband being associated with a first set of transmit power levels, and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; and perform a power control function associated with the UE, at least in part based on the PHR.
[0221] Clause 86. The non-transitory computer-readable medium as described in Clause 85, wherein the uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
[0222] Clause 87. A non-transitory computer-readable medium as described in any of Clauses 85 to 86, wherein the uplink transmission is associated with a sounding reference signal (SRS).
[0223] Clause 88. A non-transitory computer-readable medium as described in any one of Clauses 85 to 87, wherein the first set of transmit power levels comprises a plurality of different transmit power levels.
[0224] Clause 89. A non-transitory computer-readable medium as described in Clause 88, wherein the first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
[0225] Clause 90. A non-transitory computer-readable medium as described in any one of Clauses 85 to 89, wherein the first subband and the second subband are each associated with a corresponding common transmit power level.
[0226] Clause 91, a non-transitory computer-readable medium as described in any one of Clauses 85 to 90, wherein the first sub-band and the second sub-band are each associated with a corresponding common sub-band margin value.
[0227] Clause 92. A non-transitory computer-readable medium according to any one of Clauses 85 to 91, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for the UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is lower than the second set of transmit power levels associated with the second subband.
[0228] Clause 93. A non-transitory computer-readable medium according to any one of Clauses 85 to 92, wherein the first bandwidth is adjacent to a second bandwidth associated with downlink transmission for another UE, wherein the first subband is closer to the second bandwidth than the first subband, and wherein the first set of transmit power levels associated with the first subband is higher than the second set of transmit power levels associated with the second subband.
[0229] Clause 94. A non-transitory computer-readable medium pursuant to any one of Clauses 85 to 93, wherein the one or more instructions further enable the network component to receive from the UE an indication of the UE's ability to support subband power margin value reports.
[0230] Clause 95. A non-transitory computer-readable medium pursuant to any one of Clauses 85 to 94, wherein the one or more instructions further cause the network component to send at least one subband PHR report parameter to the UE, wherein the reception is based on the at least one subband PHR report parameter.
[0231] Clause 96. A non-transitory computer-readable medium as described in any one of Clauses 85 to 95, wherein the PHR is received via a Media Access Control (MAC) command element (CE).
[0232] As used herein, the term "component" is intended to be interpreted broadly as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using a combination of hardware, firmware, and / or hardware and software.
[0233] As used in this article, depending on the context, satisfying the threshold can refer to a value that is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.
[0234] It is evident that the systems and / or methods described herein can be implemented using various forms of hardware, firmware, and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, since the operation and performance of these systems and / or methods are described without reference to specific software code, it should be understood that software and hardware for implementing these systems and / or methods can be designed, at least in part, based on the description herein.
[0235] Although combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. While each dependent claim listed below directly depends on only one claim, the disclosure of the aspects includes each dependent claim in combination with every other claim in the group of claims. The phrase “at least one of” refers to any combination of these items (including a single member). For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).
[0236] No element, action, or instruction used in this application should be construed as critical or fundamental unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “containing,” “having,” “including,” etc., are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated.
Claims
1. A full-duplex (FD) or FD-aware user equipment (UE), comprising: Memory; At least one transceiver; as well as At least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: Determine the transmit power configuration for uplink transmission on a first bandwidth (BWP), the first bandwidth including a first subband and a second subband, the first subband being associated with a first set of transmit power levels and the second subband being associated with a second set of transmit power levels that are different from the first set of transmit power levels; as well as A power headroom report (PHR) is transmitted via the at least one transceiver, the PHR indicating a first subband headroom value and a second subband headroom value associated with the first subband and the second subband, respectively.
2. The FD or FD-aware UE according to claim 1, wherein, The uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
3. The FD or FD-aware UE according to claim 1, wherein, The uplink transmission is associated with a sounding reference signal (SRS).
4. The FD or FD-aware UE according to claim 1, wherein, The first set of transmit power levels includes multiple different transmit power levels.
5. The FD or FD-aware UE according to claim 4, wherein, The first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
6. The FD or FD-aware UE according to claim 1, wherein, The first subband and the second subband are each associated with a corresponding common transmit power level.
7. The FD or FD-aware UE according to claim 1, wherein, The first sub-band and the second sub-band are each associated with a corresponding common sub-band margin value.
8. The FD or FD-aware UE according to claim 1, in, The first bandwidth is adjacent to the second bandwidth associated with downlink transmissions for the FD or FD-aware UE. Among the first sub-band and the second sub-band, the first sub-band is closer to the second bandwidth, and The first set of transmit power levels associated with the first sub-band is lower than the second set of transmit power levels associated with the second sub-band.
9. The FD or FD-aware UE according to claim 1, in, The first bandwidth is adjacent to the second bandwidth associated with downlink transmissions for another FD or FD-aware UE. Among the first sub-band and the second sub-band, the first sub-band is closer to the second bandwidth, and The first set of transmit power levels associated with the first sub-band is higher than the second set of transmit power levels associated with the second sub-band.
10. The FD or FD-aware UE according to claim 1, wherein, The at least one processor is further configured to: The at least one transceiver transmits an indication to the network component of the FD or FD-aware UE's ability to support subband power margin value reports.
11. The FD or FD-aware UE according to claim 1, wherein, The at least one processor is further configured to: At least one subband PHR report parameter is received from the network component via the at least one transceiver. The transmission of the PHR is based on the at least one sub-band PHR report parameter.
12. The FD or FD-aware UE according to claim 1, wherein, The PHR is sent via a Media Access Control (MAC) control element (CE).
13. A network component, comprising: Memory; At least one transceiver; as well as At least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: Power headroom reports (PHRs) are received from a full-duplex (FD) or FD-aware user equipment (UE) via the at least one transceiver. The PHRs indicate first subband headroom values and second subband headroom values associated with a first subband and a second subband, respectively. The first subband and the second subband include at least a portion of a first bandwidth (BWP) associated with a transmit power configuration for uplink transmission from the FD or FD-aware UE. The first subband is associated with a first set of transmit power levels, and the second subband is associated with a second set of transmit power levels that are different from the first set of transmit power levels. as well as Power control functions associated with the FD or the FD-aware UE are performed, at least in part, based on the PHR.
14. The network component of claim 13, wherein, The uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
15. The network component of claim 13, wherein, The uplink transmission is associated with a sounding reference signal (SRS).
16. The network component of claim 13, wherein, The first set of transmit power levels includes multiple different transmit power levels.
17. The network component of claim 16, wherein, The first subband margin value associated with the first subband is based on the average of the plurality of different transmit power levels.
18. The network component of claim 13, wherein, The first subband and the second subband are each associated with a corresponding common transmit power level.
19. The network component of claim 13, wherein, The first sub-band and the second sub-band are each associated with a corresponding common sub-band margin value.
20. The network component of claim 13, in, The first bandwidth is adjacent to the second bandwidth in the BWP associated with downlink transmissions for the FD or FD-aware UE. Among the first sub-band and the second sub-band, the first sub-band is closer to the second bandwidth, and The first set of transmit power levels associated with the first sub-band is lower than the second set of transmit power levels associated with the second sub-band.
21. The network component according to claim 13, in, The first bandwidth is adjacent to the second bandwidth associated with downlink transmissions for another FD or FD-aware UE. Among the first sub-band and the second sub-band, the first sub-band is closer to the second bandwidth, and The first set of transmit power levels associated with the first sub-band is higher than the second set of transmit power levels associated with the second sub-band.
22. The network component of claim 13, wherein, The at least one processor is further configured to: The at least one transceiver receives from the FD or FD-aware UE an indication of the FD or FD-aware UE's ability to support subband power margin value reporting.
23. The network component of claim 13, wherein, The at least one processor is further configured to: At least one subband PHR report parameter is sent to the FD or the FD-aware UE via the at least one transceiver. The reception of the PHR is based on the at least one sub-band PHR report parameter.
24. The network component of claim 13, wherein, The PHR is received via a Media Access Control (MAC) control element (CE).
25. A method for operating a full-duplex (FD) or FD-aware user equipment (UE), comprising: Determine the transmit power configuration for uplink transmission on a first bandwidth in a bandwidth portion, the first bandwidth including a first subband and a second subband, the first subband being associated with a first set of transmit power levels, and the second subband being associated with a second set of transmit power levels that are different from the first set of transmit power levels; as well as Send a Power Headroom Report (PHR), which indicates the first subband headroom value and the second subband headroom value associated with the first subband and the second subband, respectively.
26. The method of claim 25, wherein, The uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
27. The method according to claim 25, wherein, The first set of transmit power levels includes multiple different transmit power levels.
28. A method of operating a network component, comprising: A Power Headroom Report (PHR) is received from a full-duplex (FD) or FD-aware User Equipment (UE), the PHR indicating a first subband headroom value and a second subband headroom value associated with a first subband and a second subband, respectively, the first subband and the second subband including at least a portion of a first bandwidth associated with a transmit power configuration for uplink transmission from the FD or FD-aware UE, the first subband being associated with a first set of transmit power levels, and the second subband being associated with a second set of transmit power levels different from the first set of transmit power levels; as well as Power control functions associated with the FD or the FD-aware UE are performed, at least in part, based on the PHR.
29. The method according to claim 28, wherein, The uplink transmission is associated with the Physical Uplink Shared Channel (PUSCH).
30. The method according to claim 28, wherein, The first set of transmit power levels includes multiple different transmit power levels.
Citation Information
Patent Citations
Power headroom report method and apparatus, and computer storage medium
WO2019161542A1