Band sharing techniques
By introducing rules and duplex schemes into outdoor networks, the interference problem caused by overlapping frequency bands between indoor and outdoor networks was solved, achieving efficient coexistence of indoor and outdoor networks and improving communication quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2026-04-03
AI Technical Summary
In existing wireless communication systems, the frequency band allocation methods for indoor and outdoor networks prevent the networks from coexisting efficiently. In particular, when the Listen-Before-Speak (LBT) process is not performed in outdoor deployments, the frequency band overlap between indoor and outdoor networks leads to interference and conflicts.
By introducing rules into outdoor network deployments, the coexistence of indoor and outdoor networks is facilitated. These rules include the LBT process for using licensed spectrum and time/frequency-based duplex schemes, allocating different subbands for uplink and downlink communication, and ensuring that outdoor networks perform LBT before accessing licensed spectrum.
It achieves efficient coexistence of indoor and outdoor networks, reduces interference, improves communication efficiency and bandwidth utilization, and ensures wireless communication quality in different deployment scenarios.
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Figure CN121795014A_ABST
Abstract
Description
[0001] Cross-referencing
[0002] This patent application claims priority to U.S. Patent Application No. 18 / 815,629, entitled "FREQUENCY BAND SHARING TECHNIQUES", filed August 26, 2024, by DAMNJANOVIC et al., and U.S. Provisional Patent Application No. 63 / 582,487, entitled "FREQUENCY BAND SHARING TECHNIQUES", filed September 13, 2023, by DAMNJANOVIC et al., each of which is assigned to the assignee of this application and each of which is expressly incorporated herein by reference. Technical Field
[0003] This disclosure relates to wireless communications, including band-sharing technologies. Background Technology
[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (such as Long Term Evolution (LTE) systems, LTE-A Advanced (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems may employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each supporting wireless communication of communication devices, which may be referred to as User Equipment (UE). Summary of the Invention
[0005] The described technology relates to improved methods, systems, devices, and apparatuses supporting frequency band sharing technologies. For example, the described technology provides coexistence for frequency bands allocated to different deployment scenarios. For instance, a frequency band may be allocated to unlicensed spectrum for indoor deployment scenarios. Indoor deployment of unlicensed spectrum can utilize time-based duplexing schemes (e.g., Time Division Duplex (TDD)). The frequency band may also be allocated to licensed spectrum for outdoor deployment scenarios. In contrast, outdoor deployment of licensed spectrum can utilize frequency-based duplexing schemes (e.g., Frequency Division Duplex / Subband Full Duplex (FDD / SBFD)). Therefore, outdoor networks can overlap with indoor networks. In some examples, network entities can access licensed spectrum in outdoor deployments without performing a Listen-Before-Speak (LBT) procedure. When accessing licensed spectrum in outdoor deployments, User Equipment (UE) can use the LBT procedure.
[0006] A method for wireless communication by a UE is described. The method may include: receiving an indication of one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum used for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor network and the outdoor network deployment; and performing wireless communication on the outdoor network deployment according to the one or more rules.
[0007] A UE for wireless communication is described. The UE may include one or more memories storing processor-executable code and one or more processors coupled to the one or more memories. The one or more processors may operate individually or jointly to execute code such that the UE: receives instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between indoor and outdoor network deployments; and performs wireless communication on the outdoor network deployment according to the one or more rules.
[0008] Another UE for wireless communication is described. The UE may include: components for receiving instructions on one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor and outdoor network deployments; and components for performing wireless communication on the outdoor network deployment according to the one or more rules.
[0009] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by a processor to: receive indications for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor and outdoor network deployments; and perform wireless communication on the outdoor network deployment according to the one or more rules.
[0010] In some examples of the methods, UEs, and nontransitory computer-readable media described herein, the outdoor networks using licensed spectrum include at least one of TDD networks, FDD networks, or SBFD networks.
[0011] In some examples of the methods, UEs, and nontransitory computer-readable media described herein, the first subband of the SBFD network is used for uplink communication based on the LBT procedure, and the second subband of the SBFD network is used for downlink communication without the LBT procedure.
[0012] In some examples of the methods, UEs, and nontransitory computer-readable media described herein, indoor networks using unlicensed networks include different TDD networks in which the UE is in a disconnected state.
[0013] In some examples of the methods, user equipment (UE), and nontransitory computer-readable media described herein, performing wireless communication on the outdoor network deployment may include operations, features, components, or instructions for performing an LBT process prior to transmission to the outdoor network deployment in accordance with one or more rules.
[0014] The methods described herein, examples of UEs, and nontransitory computer-readable media may also include operations, features, components, or instructions for performing the following: determining that wireless communication on an outdoor network deployment can be time-division duplexed to include an uplink transmission duration and a downlink transmission duration, and wherein, according to one or more rules, the LBT process occurs prior to wireless communication during the uplink transmission duration but not prior to wireless communication during the downlink transmission duration.
[0015] The methods described herein, examples of UEs, and non-transitory computer-readable media may also include operations, features, components, or instructions for performing the following: determining that wireless communication on an outdoor network deployment can be associated with a first subband and a second subband of an overlapping frequency band, wherein the first subband can be allocated for uplink communication and the second subband can be allocated for downlink communication, wherein the LBT process can be based on the first subband according to one or more rules.
[0016] In some examples of the methods, UEs, and nontransitory computer-readable media described herein, the LBT procedure can be based on one or more rules according to the UE.
[0017] The methods described herein, examples of UEs, and nontransitory computer-readable media may also include operations, features, components, or instructions for determining that wireless communications on an outdoor network deployment can be associated with a first subband and a second subband of an overlapping frequency band, wherein the first subband can be allocated for wireless communications that do not require an LBT process, and the second subband can be allocated for wireless communications that require an LBT process.
[0018] In some examples of the methods described herein, UEs, and non-transitory computer-readable media, the first subband may be allocated for exemption transmission (CET) of the free channel assessment (CCA) performed by the UE.
[0019] In some examples of the methods, UEs, and nontransitory computer-readable media described herein, the first subband can be allocated for dedicated use within a licensed spectrum.
[0020] In some examples of the methods described herein, UEs, and non-transitory computer-readable media, the first subband may be allocated by a network entity for CET and for transmission of one or more types of duty cycles for the UE.
[0021] In the methods described herein, and in some examples of UEs and non-transitory computer-readable media, the second subband can be assigned as an LBT procedure for any transmission request on the second subband.
[0022] In the methods described herein, and in some examples of UEs and non-transitory computer-readable media, a second subband may be allocated for limited use of CET by the UE and network entities.
[0023] In the methods described herein, and in some examples of UEs and non-transitory computer-readable media, a second sub-band may be allocated for limited use of the CET solely by the UE.
[0024] In the methods described herein, and in some examples of UEs and nontransitory computer-readable media, a second subband may be allocated for dedicated use within a licensed spectrum.
[0025] The methods described herein, examples of UEs, and non-transitory computer-readable media may also include operations, features, components, or instructions for performing the following: determining that wireless communication on an outdoor network deployment may be associated with a first subband, a second subband, and a third subband of an overlapping frequency band, wherein the first subband may be allocated for dedicated use within a licensed spectrum, the second subband may be allocated for shared use by network entities and UEs, and the third subband may be allocated for shared use by UEs.
[0026] In the methods described herein, in some examples of UEs and nontransitory computer-readable media, the first subband may be time-division duplex or full-duplex.
[0027] In the methods described herein, and in some examples of UEs and nontransitory computer-readable media, the second subband may be allocated for CETs performed by network entities, or LBT-based communications performed by the UE, or certain types of duty cycle CETs performed by the UE.
[0028] In some examples of the methods, UEs, and nontransitory computer-readable media described herein, a third subband may be allocated for LBT-based communications performed by the UE, according to one or more rules, and the third subband may be inaccessible to network entities.
[0029] The methods described herein, examples of UEs, and non-transitory computer-readable media may also include operations, features, components, or instructions for performing an LBT process based on spatial parameters prior to the first sub-band of an overlapping frequency band deployed in an outdoor network, according to one or more rules. Attached Figure Description
[0030] Figure 1 An example of a wireless communication system supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0031] Figure 2 An example of a wireless communication system supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0032] Figures 3A to 3B An example of a duplex scheme supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0033] Figures 4A to 4B An example of a duplex scheme supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0034] Figure 5 An example of a duplex scheme supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0035] Figure 6 and Figure 7 A block diagram of an apparatus supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0036] Figure 8 A block diagram of a communication manager supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0037] Figure 9 A diagram of a system including a device supporting band-sharing technology according to one or more aspects of this disclosure is shown.
[0038] Figures 10 to 12 A flowchart is shown, illustrating a method for supporting band-sharing technology according to one or more aspects of this disclosure. Detailed Implementation
[0039] Wireless networks can operate in different frequency bands. Furthermore, portions of a given frequency band can be allocated or otherwise used for specific functions and / or specific scenarios. For example, in some scenarios, a frequency band may be allocated to unlicensed users. In other scenarios, a frequency band may be allocated to licensed users. However, such networks may not provide components for different allocations to coexist in a meaningful and efficient manner.
[0040] Therefore, the described aspects of the technology provide for the coexistence of frequency bands allocated to different deployment scenarios. For example, a frequency band can be allocated to unlicensed spectrum for indoor deployment scenarios. Indoor deployment of unlicensed spectrum can utilize time-based duplexing schemes (e.g., Time Division Duplex (TDD)). A frequency band can also be allocated to licensed spectrum for outdoor deployment scenarios. In contrast, outdoor deployment of licensed spectrum can utilize frequency-based duplexing schemes (e.g., Frequency Division Duplex / Subband Full Duplex (FDD / SBFD)). Thus, outdoor networks can overlap with indoor networks. In some examples, network entities can access licensed spectrum in outdoor deployments without performing a Listen-Before-Speak (LBT) procedure. When accessing licensed spectrum in outdoor deployments, User Equipment (UE) can use the LBT procedure.
[0041] The various aspects of this disclosure are first described in the context of wireless communication systems. These aspects are further illustrated by apparatus diagrams, system diagrams, and flowcharts relating to band-sharing technologies, and are described with reference to these diagrams.
[0042] Figure 1An example of a wireless communication system 100 supporting band-sharing technology according to one or more aspects of this disclosure is shown. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other systems and radio technologies, including future systems and radio technologies not expressly mentioned herein.
[0043] Network entity 105 may be distributed across a geographical area to form wireless communication system 100, and may include devices employing different forms or having different capabilities. In various examples, network entity 105 may be referred to as a network element, mobility element, radio access network (RAN) node, or network equipment, etc. In some examples, network entity 105 and UE 115 may wirelessly communicate via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, network entity 105 may support coverage area 110 (e.g., a geographical coverage area) within which UE 115 and network entity 105 may establish one or more communication links 125. Coverage area 110 may be an example of a geographical area within which network entity 105 and UE 115 may support the transmission of signals according to one or more radio access technologies (RATs).
[0044] UE 115 can be distributed throughout the coverage area 110 of wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. UE 115 can be devices in different forms or with different capabilities. Figure 1 Some example UE 115s are illustrated herein. The UE 115 described herein can be able to support various types of devices (such as, e.g., ...). Figure 1 It communicates with other UEs (115 or network entity 105) as shown.
[0045] As described herein, nodes of the wireless communication system 100 (which may be referred to as network nodes or wireless nodes) may be network entity 105 (e.g., any network entity described herein), UE 115 (e.g., any UE described herein), network controller, apparatus, device, computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be UE 115. Alternatively, a node may be network entity 105. Furthermore, a first node may be configured to communicate with a second or third node. In one aspect of this example, the first node may be UE 115, the second node may be network entity 105, and the third node may be UE 115. In another aspect of this example, the first node may be UE 115, the second node may be network entity 105, and the third node may be network entity 105. In other aspects of this example, the first node, the second node, and the third node may be different from these examples. Similarly, references to UE 115, network entity 105, device, equipment, computing system, etc., may include disclosures of UE 115, network entity 105, device, equipment, computing system, etc., as nodes. For example, a disclosure that UE 115 is configured to receive information from network entity 105 also discloses that a first node is configured to receive information from a second node.
[0046] In some examples, network entity 105 may communicate with core network 130, communicate with each other, or both. For example, network entity 105 may communicate with core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some examples, network entities 105 may communicate with each other directly (e.g., directly between network entities 105) or indirectly (e.g., via core network 130) via backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols). In some examples, network entities 105 may communicate with each other via midhaul communication link 162 (e.g., according to midhaul interface protocol) or fronthaul communication link 168 (e.g., according to fronthaul interface protocol) or any combination thereof. Backhaul communication link 120, midhaul communication link 162, or fronthaul communication link 168 may be or include one or more wired links (e.g., electrical links, fiber optic links), one or more wireless links (e.g., radio links, wireless optical links), etc., or various combinations thereof. UE 115 can communicate with core network 130 via communication link 155.
[0047] One or more network entities in network entity 105 described herein may include or be referred to as base station 140 (e.g., transceiver base station, radio base station, NR base station, access point, radio transceiver, node B, eNodeB (eNB), next-generation node B or gigabit node B (any of which may be referred to as gNB), 5G NB, next-generation eNB (ng-eNB), home node B, home evolution node B, or other suitable terms). In some examples, network entity 105 (e.g., base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture that may be configured to utilize a protocol stack that is physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as base station 140).
[0048] In some examples, network entity 105 may be implemented in a decomposed architecture (e.g., a decomposed base station architecture, a decomposed RAN architecture) that can be configured to utilize protocol stacks physically or logically distributed across two or more network entities 105, such as an Integrated Access Backhaul (IAB) network, an Open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a Virtualized RAN (vRAN) (e.g., a Cloud RAN (C-RAN)). For example, network entity 105 may include one or more of the following: a Central Unit (CU) 160, a Distributed Unit (DU) 165, a Radio Unit (RU) 170, a RAN Intelligent Controller (RIC) 175 (e.g., a near-real-time RIC, a non-real-time RIC), a Service Management and Orchestration (SMO) 180 system, or any combination thereof. 170 may also be referred to as a radio headend, intelligent radio headend, remote radio headend (RRH), remote radio unit (RRU), or transmit / receive point (TRP). One or more components of network entity 105 in a decomposed RAN architecture may be co-located, or one or more components of network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 in a decomposed RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).
[0049] The functional splitting among CU 160, DU 165, and RU 170 is flexible and can support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at CU 160, DU 165, or RU 170. For example, a protocol stack functional splitting can be used between CU 160 and DU 165, allowing CU 160 to support one or more layers of the protocol stack, and DU 165 to support one or more different layers of the protocol stack. In some examples, CU 160 can host higher protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functionalities and signaling (e.g., Radio Resource Control (RRC), Serving Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). CU 160 can connect to one or more DU 165 or RU 170, and one or more DU 165 or RU 170 can host lower protocol layers, such as Layer 1 (L1) (e.g., Physical (PHY) layer) or L2 (e.g., Radio Link Control (RLC) layer, Medium Access Control (MAC) layer) functionality and signaling, and each can be at least partially controlled by CU 160. Additionally or alternatively, a protocol stack functional split can be employed between DU 165 and RU 170, such that DU 165 can support one or more layers of the protocol stack, and RU 170 can support one or more different layers of the protocol stack. DU 165 can support one or more different cells (e.g., via one or more RU 170). In some cases, functional decomposition between CU 160 and DU 165, or between DU 165 and RU 170, can be performed within the protocol layer (e.g., some functions of the protocol layer can be performed by one of CU 160, DU 165, or RU 170, while other functions of the protocol layer can be performed by different of CU 160, DU 165, or RU 170). CU 160 can be further functionally decomposed into CU control plane (CU-CP) functions and CU user plane (CU-UP) functions. CU 160 can be connected to one or more DU 165 via midhaul communication link 162 (e.g., F1, F1-c, F1-u), and DU 165 can be connected to one or more RU 170 via fronthaul communication link 168 (e.g., open fronthaul (FH) interface). In some examples, the midhaul communication link 162 or the fronthaul communication link 168 may be implemented based on the interfaces (e.g., channels) between the layers of the protocol stack, which are supported by the corresponding network entities 105 communicating via such communication links.
[0050] In a wireless communication system (e.g., wireless communication system 100), the infrastructure and spectrum resources for radio access can support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB node 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as donor entities or IAB donors. One or more DU 165s or one or more RU 170s may be partially controlled by one or more CU 160s associated with donor network entity 105 (e.g., donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB node 104) via supported access and backhaul links (e.g., backhaul communication link 120). IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by a DU 165 of a coupled IAB donor. The IAB-MT may include a separate set of antennas for relaying communication with UE 115, or may share the same antennas (e.g., those of RU 170) for access to IAB node 104 via DU 165 of IAB node 104. (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of IAB node 104) may be configured to operate according to the techniques described herein.
[0051] For example, the access network (AN) or RAN may include communication between an access node (e.g., an IAB donor), IAB node 104, and one or more UEs 115. The IAB donor may facilitate connectivity between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, an IAB donor may refer to a RAN node having a wired or wireless connection to the core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170), in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and IAB node 104 may communicate via an F1 interface according to a protocol defining the signaling messages (e.g., the F1 AP protocol). Additionally or alternatively, the CU 160 may communicate with the core network via an interface (which may be a part of the backhaul link) and may communicate with other CU 160s (e.g., CU 160 associated with an alternative IAB donor) via an Xn-C interface (which may be a part of the backhaul link).
[0052] IAB node 104 may refer to a RAN node that provides IAB functionality (e.g., access for UE 115, radio self-backhaul capability). DU 165 may act as a distributed scheduling node toward child nodes associated with IAB node 104, and IAB-MT may act as a scheduled node toward a parent node associated with IAB node 104. That is, an IAB donor may be referred to as a parent node communicating with one or more child nodes (e.g., an IAB donor may relay UE transmissions through one or more other IAB nodes 104). Additionally or alternatively, depending on the AN's relay chain or configuration, IAB node 104 may also be referred to as a parent node or child node of other IAB nodes 104. Therefore, the IAB-MT entity of IAB node 104 may provide a Uu interface for child IAB node 104 to receive signaling from parent IAB node 104, and the DU interface (e.g., DU 165) may provide a Uu interface for parent IAB node 104 to signal to child IAB node 104 or UE 115.
[0053] For example, IAB node 104 may be referred to as a parent node supporting communication to child IAB nodes, or as a child IAB node associated with an IAB donor, or both. An IAB donor may include a CU 160 having a wired or wireless connection to core network 130 (e.g., backhaul communication link 120) and may act as a parent node of IAB node 104. For example, the IAB donor's DU 165 may relay transmissions to UE 115 via IAB node 104, or may signal transmissions directly to UE 115, or both. The IAB donor's CU 160 may signal the establishment of a communication link to IAB node 104 via an F1 interface, and IAB node 104 may schedule transmissions via DU 165 (e.g., transmissions relayed from the IAB donor to UE 115). That is, data may be relayed to and from IAB node 104 via signaling through the NR Uu interface of the MT to IAB node 104. Communication with IAB node 104 can be scheduled by DU 165 of the IAB donor, and communication with IAB node 104 can be scheduled by DU 165 of IAB node 104.
[0054] When the techniques described herein are applied in the context of a decomposed RAN architecture, one or more components of the decomposed RAN architecture can be configured to support band sharing techniques as described herein. For example, some operations described as being performed by UE115 or network entity 105 (e.g., base station 140) may additionally or alternatively be performed by one or more components of the decomposed RAN architecture (e.g., IAB node 104, DU 165, CU 160, RU 170, RIC 175, SMO 180).
[0055] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein "device" may also be referred to as a cell, station, terminal, or client, etc. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc.
[0056] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that sometimes act as relays, network entities 105, and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1 As shown.
[0057] UE 115 and network entity 105 can wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" can refer to a set of RF spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the RF spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used with both FDD component carriers and TDD component carriers. Communication between network entity 105 and other devices can refer to communication between these devices and any part of network entity 105 (e.g., entity, sub-entity). For example, the terms “send,” “receive,” or “communicate” when referring to network entity 105 can refer to any part of the RAN’s network entity 105 (e.g., base station 140, CU 160, DU 165, RU 170) communicating with another device (e.g., directly or via one or more other network entities 105).
[0058] In some examples, such as in carrier aggregation configurations, a carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified according to a channel grating used for discovery by UE 115. A carrier may operate in standalone mode, in which case initial acquisition and connection can be made by UE 115 via that carrier, or the carrier may operate in non-standalone mode, in which case different carriers (e.g., the same or different radio access technologies) are used to anchor the connection.
[0059] The communication link 125 shown in the wireless communication system 100 may include downlink transmission (e.g., forward link transmission) from network entity 105 to UE 115, uplink transmission (e.g., return link transmission) from UE 115 to network entity 105, or both, as well as other transmission configurations. A carrier may carry downlink communication or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).
[0060] A carrier may be associated with a specific bandwidth of the RF spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one bandwidth in a set of bandwidths for a particular radio access technology (e.g., 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). Devices of the wireless communication system 100 (e.g., network entity 105, UE 115, or both) may have hardware configurations that support communication using a specific carrier bandwidth, or may be configured to support communication using one carrier bandwidth in a set of carrier bandwidths. In some examples, the wireless communication system 100 may include network entity 105 or UE 115 that supports concurrent communication using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate using a portion (e.g., subband, BWP) or all of the carrier bandwidth.
[0061] The signal waveform transmitted via a carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element may refer to a resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the decoding rate of the modulation scheme, or both), such that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high modulation scheme order correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.
[0062] It can support one or more sets of parameters for a carrier, and the parameter sets may include subcarrier spacing ( (and cyclic prefix). A carrier can be divided into one or more BWPs with the same or different sets of parameters. In some examples, UE 115 can be configured using multiple BWPs. In some examples, a single BWP of a carrier can be active at a given time, and the communication of UE 115 can be constrained to one or more active BWPs.
[0063] The time interval for network entity 105 or UE 115 can be expressed as a multiple of a basic time unit, such as the sampling period. seconds, of which It can represent the supported subcarrier spacing, and This can represent the supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources can be organized according to radio frames, each with a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).
[0064] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may (e.g., in the time domain) be divided into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of symbol periods (e.g., depending on the length of the cyclic prefix appended to each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple micro-time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., The duration of a symbol period is associated with a (number) sampling period. The duration of a symbol period can depend on the subcarrier spacing or the operating frequency band.
[0065] A subframe, time slot, micro-time slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).
[0066] Depending on the technology, carriers can be used to multiplex physical channels for communication. For example, one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques can be used to multiplex physical control channels and physical data channels for signaling via a downlink carrier. The control region (e.g., control resource set (CORESET)) of the physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth of the carrier or a subset of that bandwidth. One or more control regions (e.g., CORESET) can be configured for a set of UEs 115. For example, one or more UEs in UE 115 may monitor or search for control regions to obtain control information based on one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a concatenated manner. The aggregation level of control channel candidates may refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space set may include: a common search space set configured to transmit control information to multiple UEs 115, and a UE-specific search space set used to transmit control information to a specific UE 115.
[0067] Network entity 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used (e.g., using a carrier) to communicate with network entity 105 and may be associated with an identifier used to distinguish adjacent cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID), or other identifier). In some examples, a cell may also refer to a coverage area 110 or a portion of coverage area 110 (e.g., a sector) in which a logical communication entity operates. Depending on various factors such as the capabilities of network entity 105, the range of such cells may be from smaller areas (e.g., structures, subsets of structures) to larger areas. For example, a cell may be a building, a subset of buildings, or external space between or overlapping coverage areas 110, or may include buildings, subsets of buildings, or external space between or overlapping coverage areas.
[0068] Macro cells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access to UE 115 that has a service subscription with a network provider supporting the macro cell. In contrast, small cells may be associated with a lower-power network entity 105 (e.g., a lower-power base station 140) and may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to UE 115 that has a service subscription with a network provider, or restricted access to UE 115 associated with a small cell (e.g., UE 115 in a Closed Subscriber Group (CSG), or UE 115 associated with a user in a home or office). Network entity 105 may support one or more cells and may also use one or more component carriers to support communication via one or more cells.
[0069] In some examples, a carrier can support multiple cells and can be configured with different cells based on different protocol types that provide access for different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).
[0070] In some examples, network entity 105 (e.g., base station 140, RU 170) may be mobile, and thus provide communication coverage to mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 110 may be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of network entities 105 use the same or different radio access technologies to provide coverage for various coverage areas 110.
[0071] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, network entities 105 (e.g., base station 140) can have similar frame timings, and transmissions from different network entities 105 can be approximately time-aligned. For asynchronous operation, network entities 105 can have different frame timings, and in some examples, transmissions from different network entities 105 may not be time-aligned. The techniques described herein can be used for both synchronous and asynchronous operation.
[0072] Some UE 115 devices (such as MTC or IoT devices) can be low-cost or low-complexity devices and can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with network entity 105 (e.g., base station 140) without human intervention. In some examples, M2M communication or MTC may include communication from devices with integrated sensors or meters to measure or acquire information and relay such information to a central server or application that uses the information or presents it to people interacting with the application. Some UE 115 devices may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.
[0073] Some UE 115s can be configured to operate in a power-saving mode, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but does not transmit and receive concurrently). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UE 115 include: entering a power-saving deep sleep mode when not engaged in active communication, operating with limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UE 115s can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a carrier's guard band, or outside a carrier.
[0074] Wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC). UE 115 may be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication may include private or group communication and may be supported by one or more services, such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general business applications. The terms “ultra-reliable,” “low-latency,” and “ultra-reliable low-latency” are used interchangeably herein.
[0075] In some examples, UE 115 may be configured to support direct communication with other UE 115s via device-to-device (D2D) communication link 135 (e.g., according to peer-to-peer (P2P), D2D, or sidelink protocols). In some examples, one or more UE 115s performing D2D communication in a group may be within the coverage area 110 of network entity 105 (e.g., base station 140, RU 170), which may support aspects of such D2D communication configured (e.g., scheduled by network entity 105). In some examples, one or more UE 115s in such a group may be outside the coverage area 110 of network entity 105, or may otherwise be unable or not configured to receive transmissions from network entity 105. In some examples, the group of UE 115s communicating via D2D communication may support a one-to-many (1:M) system, where each UE 115 transmits to each of the other UE 115s in the group. In some examples, network entity 105 may facilitate the scheduling of resources used for D2D communication. In other examples, D2D communication may be performed between UEs 115 without involving network entity 105.
[0076] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-vehicle (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these. Vehicles may signal information related to traffic conditions, signaling, weather, safety, emergencies, or any other information relevant to the V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure (such as roadside units), or communicate with the network via one or more network nodes (e.g., network entity 105, base station 140, RU 170) using vehicle-to-network (V2N) communication, or both.
[0077] Core network 130 provides user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) for routing packets or interconnecting to external networks. The control plane entity manages non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by network entity 105 (e.g., base station 140) associated with core network 130. User IP packets can be delivered through the user plane entity, which provides IP address allocation and other functions. The user plane entity may connect to one or more network operator IP services 150. IP services 150 may include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.
[0078] Wireless communication system 100 can operate using one or more frequency bands in the range of 300 MHz to 300 GHz. Generally, the area from 300 MHz to 3 GHz is referred to as the Ultra High Frequency (UHF) band or decimeter band because the wavelength range is approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features (which may be referred to as clusters), but these waves are sufficient to penetrate structures so that macrocells can provide service to UE 115 located indoors. Compared to communication using smaller frequencies and longer wavelengths in the lower frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz, communication using UHF waves can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).
[0079] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) region (also known as the centimeter band) in the range of 3 GHz to 30 GHz or in the extremely high frequency (EHF) region (e.g., 30 GHz to 300 GHz) (also known as the millimeter band). In some examples, the wireless communication system 100 can support millimeter-wave (mmW) communication between the UE 115 and network entity 105 (e.g., base station 140, RU 170), and the EHF antennas of the corresponding devices can be smaller and more closely spaced than UHF antennas. In some examples, such techniques facilitate the use of antenna arrays within the device. However, compared to SHF or UHF transmission, EHF transmission may experience even greater attenuation and a shorter range. The techniques disclosed herein can be adopted for transmission across one or more different frequency regions, and the frequency band usage specified across these frequency regions may vary by country or regulatory authority.
[0080] Wireless communication system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, wireless communication system 100 may use unlicensed bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band) to employ Licensed Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology. When operating with unlicensed RF spectrum, devices such as network entity 105 and UE 115 may employ carrier sensing for collision detection and avoidance. In some examples, operation using unlicensed bands may be combined with component carriers operating with licensed bands based on carrier aggregation configurations (e.g., LAA). Operation using unlicensed spectrum may include downlink transmission, uplink transmission, P2P transmission, or D2D transmission, etc.
[0081] Network entity 105 (e.g., base station 140, RU 170) or UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of network entity 105 or UE 115 may be located within one or more antenna arrays or antenna panels, which can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with network entity 105 may be located at different geographical locations. Network entity 105 may include an antenna array having a collection of multiple rows and columns of antenna ports that network entity 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may include one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals transmitted via the antenna ports.
[0082] Network entity 105 or UE 115 may use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. This technique may be referred to as spatial multiplexing. The multiple signals may be transmitted, for example, by a transmitting device via different antennas or different combinations of antennas. Similarly, the multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include: single-user MIMO (SU-MIMO), for which multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), for which multiple spatial layers are transmitted to multiple devices.
[0083] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., network entity 105, UE 115) to shape or guide an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array such that some signals propagating along a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to the signals transmitted via the antenna elements may include applying amplitude shifts, phase shifts, or both to the signals carried via the antenna elements associated with the device. The adjustments associated with each of these antenna elements may be defined by a beamforming weight set associated with a specific orientation (e.g., relative to the antenna array of the transmitting or receiving device or relative to some other orientation).
[0084] Network entity 105 or UE 115 may use beamsweeping technology as part of beamforming operations. For example, network entity 105 (e.g., base station 140, RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) for beamforming operations to facilitate directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by network entity 105 along different directions. For example, network entity 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. Transmission along different beam directions may be used to identify (e.g., by a transmitting device (such as network entity 105) or by a receiving device (such as UE 115)) the beam direction for later transmission or reception by network entity 105.
[0085] Some signals (such as data signals associated with a specific receiving device) may be transmitted by a transmitting device (e.g., transmitting network entity 105, transmitting UE 115) along a single beam direction (e.g., the direction associated with a receiving device (such as receiving network entity 105 or receiving UE 115). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted along one or more beam directions. For example, UE 115 may receive one or more signals transmitted by network entity 105 in different directions and may report to network entity 105 an indication of signals received by UE 115 with the highest signal quality or other acceptable signal quality.
[0086] In some examples, transmissions performed by a device (e.g., network entity 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital pre-decoding or beamforming to generate a combined beam for transmission (e.g., from network entity 105 to UE 115). UE 115 may report feedback indicating pre-decoding weights for one or more beam directions, and this feedback may correspond to a set of beams configured across the system bandwidth or one or more subbands. Network entity 105 may transmit reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)) that may or may not be pre-decoded. UE 115 may provide feedback for beam selection, which may be a pre-decoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel codebook, linear combination codebook, port selection codebook). Although these techniques are described with reference to signals transmitted by network entity 105 (e.g., base station 140, RU 170) in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction used by UE 115 for subsequent transmission or reception), or to transmit signals in a single direction (e.g., to transmit data to a receiving device).
[0087] A receiving device (e.g., UE 115) may perform reception operations according to multiple reception configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a transmitting device (e.g., network entity 105). For example, the receiving device may perform reception according to multiple reception directions by: receiving via different antenna subarrays; processing the received signal according to different antenna subarrays; receiving according to different sets of reception beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets); or processing the received signal according to different sets of reception beamforming weights applied to signals received at multiple antenna elements of the antenna array. Any of these operations may be referred to as “listening” according to different reception configurations or reception directions. In some examples, the receiving device may use a single reception configuration to receive along a single beam direction (e.g., when a data signal is received). A single receiver configuration can be aligned along a beam direction determined based on listening according to different receiver configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).
[0088] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or PDCP layer can be IP-based. The RLC layer performs packet segmentation and reassembly for transmission via logical channels. The MAC layer performs priority processing and multiplexing of logical channels to transport channels. The MAC layer can also use error detection, error correction, or both to support retransmission to improve link efficiency. In the control plane, the RRC layer provides the establishment, configuration, and maintenance of RRC connections between the UE 115 and network entity 105 or core network 130 that support user plane data radio bearers. The PHY layer maps transport channels to physical channels.
[0089] UE 115 and network entity 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of correctly receiving data via communication links (e.g., communication link 125, D2D communication link 135). HARQ may include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device may support same-slot HARQ feedback, in which case the device can provide HARQ feedback in a specific time slot for data received via a previous symbol in that time slot. In some other examples, the device may provide HARQ feedback in subsequent time slots or according to a different time interval.
[0090] UE 115 can receive instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, which includes overlapping bands relative to unlicensed spectrum used for wireless communication on an indoor network, wherein one or more rules facilitate coexistence between indoor and outdoor network deployments. UE 115 can perform wireless communication on an outdoor network deployment according to one or more rules.
[0091] Figure 2 An example of a wireless communication system 200 supporting band-sharing technology according to one or more aspects of this disclosure is shown. Wireless communication system 200 may implement aspects of wireless communication system 100. Wireless communication system 200 may include UE 205 and / or network entity 210, which may be examples of corresponding devices described herein. Wireless communication system 200 may also include an indoor network 215 having a corresponding coverage area 220, which may be an example of a cellular or non-cellular wireless network operating in an indoor deployment scenario.
[0092] Wireless communication system 200 can utilize various frequency resources to support wireless communication between wireless nodes of the network. UE 205 and / or network entity 210 can use various channels in the sub-6 GHz and / or 6+ GHz ranges for wireless communication. Network entity 210 can be considered an outdoor network deployment because it is deployed outdoors and provides wireless coverage to geographic areas, such as the geographic area where UE 205 is located.
[0093] Indoor network 215 may be an indoor Wi-Fi network, an indoor cellular network, or another wireless network that may operate in the same or similar frequency range as the outdoor network provided by network entity 210. Indoor network 215 can be considered as an indoor network in which access points (APs) and / or cells located inside a structure (e.g., a building, as shown in this non-limiting example) provide wireless services to nodes located within or near that structure. This may include nodes operating within a corresponding coverage area 220 that perform wireless communication with APs and / or cells located inside the structure.
[0094] In some examples, outdoor and indoor network deployments may have overlapping coverage areas. For example, indoor network 215 and its corresponding coverage area 220 may be located within some or all of the coverage area provided by network entity 210. Therefore, in some cases, a node of the outdoor network (e.g., UE 205) may be located near indoor network 215 (e.g., within a threshold geographic range) or may be located within indoor network 215 (e.g., inside a structure but communicating via the outdoor network), making interference possible between the indoor and outdoor networks.
[0095] Furthermore, in some examples, indoor network 215 and outdoor network may operate in the same or overlapping frequency bands. For example, the indoor network 215 and outdoor network deployment provided by network entity 210 may operate in the higher portion of the 6 GHz band or in different bands, or otherwise share the higher portion of the 6 GHz band or different bands. In some deployment scenarios, this may include overlapping frequency bands being allocated or otherwise assigned for use as unlicensed spectrum for indoor network 215. For example, indoor network 215 may use overlapping frequency bands for shared or unlicensed communication between wireless nodes. Operating in unlicensed spectrum typically involves wireless devices performing LBT, CCA, or other contention-based processes before accessing the unlicensed spectrum. Devices may monitor the channel to be accessed to ensure that the channel is idle and available for use before being occupied.
[0096] In some respects, indoor network 215 may use time-based duplex schemes, such as TDD. Unlicensed spectrum deployments (such as indoor network 215) may be TDD deployments, in which APs and / or wireless stations take turns occupying the medium according to a contention-based mechanism.
[0097] The outdoor network deployment provided by network entity 210 may use spectrum allocated or otherwise assigned to permitted communication. For example, network entity 210 may manage aspects of scheduling and / or allocating resources for wireless communication with UE 205. In some examples, the outdoor network deployment provided by network entity 210 may also use TDD technology, in which network entity 210 and UE 205 take turns transmitting and receiving based on a schedule determined by network entity 210.
[0098] However, in deployment scenarios where indoor network 215 and outdoor network deployments share some or all of the same overlapping frequency bands, interference between wireless networks may disrupt communication. For example, when indoor network 215 and outdoor network use overlapping frequency bands, UE 205 located near indoor network 215 may experience excessive interference.
[0099] Therefore, the aspects of the technology described herein provide various rules for improving coexistence between indoor network 215 and outdoor network deployment provided by network entity 210. The provided rules enable indoor network 215 to operate in unlicensed spectrum using a TDD duplex scheme, and enable outdoor network to operate in licensed spectrum using a TDD duplex scheme and / or a frequency-based duplex scheme (e.g., FDD and / or SBFD). These rules typically define the LBT scheme and / or duplex scheme to be applied to communications in the licensed spectrum of the outdoor network deployment provided by network entity 210.
[0100] At 225, this may include instructions sent or otherwise provided by network entity 210 (and received or otherwise obtained by UE 205) for rules for wireless communication on an outdoor network deployment using licensed spectrum. These rules may enable indoor network 215 to use overlapping frequency bands as unlicensed spectrum (e.g., relying on LBT), while also enabling outdoor network deployments provided by network entity 210 to use overlapping frequency bands as licensed spectrum (e.g., typically network-managed channel access).
[0101] At 230, UE 205 and network entity 210 may perform wireless communication on an outdoor network deployment according to this rule. In some examples, the rule may define an LBT scheme to be applied to the wireless communication. For example, the LBT scheme includes or otherwise defines that UE 205 performs an LBT procedure before accessing the licensed spectrum of the outdoor network deployment. That is, some examples of the rule may include UE 205 and / or network entity 210 using a contention-based mechanism to access the licensed spectrum of the outdoor network. This may allow UE 205 to identify or otherwise determine whether wireless communication using the unlicensed spectrum of indoor network 215 will interfere with uplink communication to network entity 210 using the licensed spectrum of the outdoor network.
[0102] The rule may further provide or otherwise define the duplex scheme to be applied to wireless communications in the licensed spectrum of an outdoor network deployment provided by network entity 210. In some examples, this may include licensed spectrum for an outdoor network deployment utilizing a frequency-based duplex scheme. For example, the outdoor network deployment may divide overlapping frequency bands into multiple sub-bands, wherein at least one sub-band is a downlink sub-band and at least one sub-band is an uplink sub-band. The downlink sub-band may be used by network entity 210 for downlink transmission to UE 205, and the uplink sub-band may be used by UE 205 for uplink transmission to network entity 210.
[0103] In some examples, UE 205 may perform the LBT procedure before accessing and / or otherwise transmitting to the uplink subband for uplink transmission. In contrast, network entity 210 may not perform the LBT procedure before performing downlink transmission. That is, in some aspects, licensed deployment use of spectrum may include a non-LBT procedure prior to transmission from an outdoor transmitter (e.g., network entity 210), where the LBT procedure may be used prior to transmission from a transmitter that may be indoors (e.g., UE 205, which may be located near indoor network 215).
[0104] In some examples of the techniques described herein, the LBT schemes discussed herein can be based on the antenna selectivity requirements of the transmitting node. For example, each UE can transmit using different spatial parameters, allowing the spatial parameters (e.g., according to rules) to be considered when determining whether to perform an LBT procedure. For example, the LBT requirement per subband can also be a function of antenna selectivity. More selective transmission (e.g., narrow spatial beaming) can be exempted from performing the LBT procedure before channel access. The selectivity threshold of CET (e.g., exemption from the LBT procedure) can vary depending on the subbands within the overlapping frequency bands being used for wireless communication.
[0105] Therefore, the rules provide a mechanism for outdoor network deployments provided by network entity 210 to coexist with indoor network 215 by managing or otherwise mitigating interference between networks. These rules provide various schemes that allow a UE 205 located near indoor network 215 to monitor a permitted channel for indoor network traffic before accessing it for communication with network entity 210.
[0106] Figures 3A to 3B An example of a duplex scheme 300 supporting band-sharing technology according to one or more aspects of this disclosure is shown. The duplex scheme 300 may implement aspects of wireless communication system 100 and / or wireless communication system 200. The aspects of the duplex scheme 300 may be implemented at or by a UE and / or network entity, which may be examples of the corresponding devices described herein. Figure 3A The duplex scheme 300-a illustrates an example of a time-based duplex scheme, and Figure 3B The duplex scheme 300-b illustrates an example of a frequency-based duplex scheme.
[0107] As discussed above, the aspects of the techniques described herein provide rules that can be configured within an outdoor network deployment provided by a network entity to support or otherwise facilitate coexistence with an indoor network using overlapping frequency bands. Rules for wireless communication on the outdoor network can be indicated to the UE (e.g., via RRC signaling, Media Access Control-Control Element (MAC-CE) signaling, and / or via other signaling means). Indoor and outdoor networks can share overlapping frequency bands (e.g., fully or partially overlapping frequency resources). Overlapping frequency bands can be allocated or otherwise used as unlicensed spectrum for the indoor network, but can also be allocated or otherwise used as licensed spectrum for the outdoor network.
[0108] The rules indicated to the UE typically define LBT schemes and / or duplex schemes to be applied to communications in the licensed spectrum of the outdoor network, which avoid or mitigate interference between the indoor and outdoor networks. Duplex scheme 300 illustrates a non-limiting example of both LBT and duplex schemes for performing wireless communication in the licensed spectrum of the outdoor network deployment in a manner that mitigates or eliminates interference between the indoor and outdoor networks.
[0109] First go to Figure 3A The duplex scheme 300-a illustrates a time-based duplex scheme (e.g., TDD) to be applied to wireless communication in an outdoor network deployment provided by a network entity. For example, the UE and / or the network entity may identify or otherwise determine that the wireless communication on the outdoor network is TDD, including a downlink transmission duration of 305 and an uplink transmission duration of 310. Figure 3AIn the illustrated non-limiting examples, this could include downlink transmission duration 305-a, uplink transmission duration 310-a, downlink transmission duration 305-b, uplink transmission duration 310-b, downlink transmission duration 305-c, downlink transmission duration 305-d, and uplink transmission duration 310-c. However, it should be understood that different configurations of transmission duration can be used according to the techniques described herein. Figure 3A The time-based duplex scheme shown allows the entire overlapping frequency band to be used by both network entities and UEs.
[0110] In some aspects, the rules indicated to the UE can further define an LBT scheme that includes the UE performing an LBT procedure before transmitting to an outdoor network deployment. For example, the UE can perform an LBT procedure before accessing the frequency band during any instance of uplink transmission duration 310. The LBT scheme can also define that the network entity does not perform an LBT procedure prior to wireless communication during any instance of downlink transmission duration 305. That is, Figure 3A The TDD duplex scheme shown can be defined (e.g., according to (a plurality of) rules) such that network entities (e.g., as outdoor deployments, with high effective isotropic radiated power (EIRP), etc.) do not perform the LBT process before accessing the frequency band during the downlink transmission duration 305, but UEs (e.g., mobile deployments, with low EIRP, etc.) do perform the LBT process before accessing the frequency band during the uplink transmission duration 310.
[0111] Next, turn to Figure 3B The duplex scheme 300-b illustrates a frequency-based duplex scheme to be applied to wireless communication in an outdoor network deployment provided by a network entity. For example, the UE and / or network entity may identify or otherwise determine that wireless communication on the outdoor network is associated with a first sub-band (e.g., uplink sub-band 320) and a second sub-band (e.g., downlink sub-band 315) of overlapping frequency bands. That is, the first sub-band may include uplink sub-band 320 for uplink transmission from the UE to the network entity, while the second sub-band may include downlink sub-band 315 for downlink transmission from the network entity to the UE.
[0112] Therefore, duplex scheme 300-b illustrates a non-limiting example in which licensed spectrum for outdoor network deployment uses a frequency-based duplex scheme (e.g., FDD) to support coexistence with a TDD-based indoor network that uses overlapping frequency bands of unlicensed spectrum allocated for the indoor network.
[0113] In some respects, the rules indicated to the UE may further define an LBT scheme, which includes the UE performing an LBT procedure before accessing and / or transmitting to an outdoor network deployment. The UE may perform the LBT procedure before accessing uplink subband 320 during any instance of the uplink transmission duration. That is, the UE may perform the LBT procedure before accessing uplink subband 320-a during the first uplink transmission duration, before accessing uplink subband 320-b during the second uplink transmission duration, before accessing uplink subband 320-c during the third uplink transmission duration, before accessing uplink subband 320-d during the fourth uplink transmission duration, and / or before accessing uplink subband 320-e during the fifth uplink transmission duration.
[0114] The LBT scheme can also define a network entity not to perform the LBT process before wireless communication on downlink subband 315. That is, Figure 3B The FDD duplex scheme shown can be defined (e.g., according to rules) such that a network entity (e.g., deployed outdoors, with high EIRP, etc.) does not perform the LBT procedure before accessing downlink subband 315, but a UE (e.g., deployed mobile, with low EIRP, etc.) does perform the LBT procedure before accessing uplink subband 320. In this example, there may be no overlap between downlink subband 315 used by the network entity and uplink subband 320 used by the UE.
[0115] Therefore, in some respects, the LBT process (e.g., LBT scheme) applied during wireless communication in licensed spectrum deployed in outdoor networks can be based on the subband being used (e.g., downlink subband 315 or uplink subband 320) and / or on the node performing the wireless communication (e.g., whether the UE or network entity is performing wireless communication).
[0116] Figures 4A to 4B An example of a duplex scheme 400 supporting band-sharing technology according to one or more aspects of this disclosure is shown. The duplex scheme 400 may implement aspects of wireless communication system 100 and / or wireless communication system 200 and / or aspects of duplex scheme 300. The aspects of duplex scheme 400 may be implemented at or by a UE and / or network entity, which may be examples of the corresponding devices described herein. Figure 4A The duplex scheme 400-a illustrates an example of the first frequency-based duplex scheme, and Figure 4B The duplex scheme 400-b illustrates an example of a second frequency-based duplex scheme.
[0117] As discussed above, the aspects of the techniques described herein provide rules that can be configured within an outdoor network deployment provided by a network entity to support or otherwise facilitate coexistence with an indoor network using overlapping frequency bands. Rules for wireless communication on the outdoor network can be indicated to the UE (e.g., via RRC signaling, MAC-CE signaling, and / or other signaling means). Indoor and outdoor networks can share overlapping frequency bands (e.g., fully or partially overlapping frequency resources). Overlapping frequency bands can be allocated or otherwise used as unlicensed spectrum for the indoor network, but can also be allocated or otherwise used as licensed spectrum for the outdoor network.
[0118] The rules indicated to the UE typically define LBT schemes and / or duplex schemes to be applied to communications in the licensed spectrum of the outdoor network, which avoid or mitigate interference between the indoor and outdoor networks. Duplex scheme 400 illustrates a non-limiting example of both LBT and duplex schemes for performing wireless communication in the licensed spectrum of the outdoor network deployment in a manner that mitigates or eliminates interference between the indoor and outdoor networks.
[0119] First go to Figure 4A The duplex scheme 400-a illustrates a frequency-based duplex scheme in which an overlapping frequency band is divided into two sub-bands. For example, the overlapping frequency band can be divided into a first sub-band (e.g., sub-band 1) including a downlink sub-band 405 and a second sub-band (e.g., sub-band 2) including an uplink sub-band 415. A portion of the downlink transmission duration allocated to the downlink sub-band 405 can be allocated to uplink control transmission using the uplink sub-band 410. That is, the first sub-band can be both frequency-duplex and time-duplex, such that the uplink sub-band 410 occupies at least a portion of the transmission duration of the downlink sub-band 405.
[0120] This may include downlink subband 405-a, uplink subband 410-a, and uplink subband 415-a during a first transmission duration; downlink subband 405-b, uplink subband 410-b, and uplink subband 415-b during a second transmission duration; downlink subband 405-c, uplink subband 410-c, and uplink subband 415-c during a third transmission duration; downlink subband 405-d, uplink subband 410-d, and uplink subband 415-d during a fourth transmission duration; and downlink subband 405-e, uplink subband 410-e, and uplink subband 415-e during a fifth transmission duration.
[0121] An example of an LBT scheme defined by rules may include a first subband (e.g., downlink subband 405) for communication that does not require an LBT procedure, but a second subband (e.g., uplink subband 415) for communication that requires an LBT procedure.
[0122] That is, in some examples, the licensed deployment of spectrum may include a first subband being configured or otherwise allocated (e.g., according to multiple rules) to allow Clear Channel Assessment (CCA) exemption transmission (CET) by the UE and / or network entity. In some examples, the first subband may be an exclusively licensed subband, such that the first subband is allocated for dedicated use within the licensed spectrum. In some examples, the first subband may be configured such that the network entity can perform CET, but the UE can perform limited transmission based on the duty cycle of transmission by the UE (or the aggregate of UEs or all UEs). That is, the first subband may be allocated for CET from the network entity and for transmission by (multiple) types of duty cycles from the UE.
[0123] For the second subband, in some examples, all nodes (e.g., UEs and / or network entities) performing wireless communication in the second subband (e.g., uplink subband 415) can be allocated or otherwise configured for CET. In some examples, the second subband can be allocated or otherwise configured for limited use of CET by UEs and / or network entities. That is, in the second subband, CET can be permitted for a limited amount of time for UEs, network entities, or both. In some examples, the second subband can be allocated or otherwise configured for limited use of CET by UEs only. In yet another example, the second subband can be allocated or otherwise assigned for dedicated use within a licensed spectrum (e.g., an exclusive licensed subband).
[0124] Next, turn to Figure 4B The duplex scheme 400-b illustrates a frequency-based duplex scheme in which an overlapping frequency band is divided into two sub-bands. For example, the overlapping frequency band may be divided into a first sub-band (e.g., sub-band 1) and a second sub-band (e.g., sub-band 2) comprising a downlink sub-band 405. The second sub-band has been further divided and includes a downlink sub-band 420 and an uplink sub-band 430. A portion of the downlink transmission duration allocated to the downlink sub-band 405 may be allocated to uplink control transmission using the uplink sub-band 410. That is, the first sub-band may be both frequency-duplex and time-duplex, such that the uplink sub-band 410 occupies at least a portion of the transmission duration of the downlink sub-band 405.
[0125] Similarly, a portion of the downlink transmission duration allocated to downlink subband 420 may be allocated to uplink control transmission using uplink subband 425. That is, a portion of the second subband may be frequency-duplex and time-duplex, such that uplink subband 425 occupies at least a portion of the transmission duration of downlink subband 420.
[0126] This can include downlink subband 405-a, uplink subband 410-a, downlink subband 420-a, uplink subband 425-a, and uplink subband 430-a during the first transmission duration; downlink subband 405-b, uplink subband 410-b, downlink subband 420-b, uplink subband 425-b, and uplink subband 430-b during the second transmission duration; and downlink subband 405-c, uplink subband 410-a, and uplink subband 430-b during the third transmission duration. c. Downlink subband 420-c, uplink subband 425-c and uplink subband 430-c, downlink subband 405-d, uplink subband 410-d, downlink subband 420-d, uplink subband 425-d and uplink subband 430-d during the fourth transmission duration, and downlink subband 405-e, uplink subband 410-e, downlink subband 420-e, uplink subband 425-e and uplink subband 430-e during the fifth transmission duration.
[0127] In some respects, duplex scheme 400-b illustrates a non-limiting example of a frequency-based duplex scheme, wherein an overlapping frequency band is divided into two sub-bands, with the second sub-band further divided into a downlink sub-band and an uplink sub-band. The LBT scheme applied according to the rules may be similar to those described with respect to duplex scheme 400-a. However, in this example, a radio node (e.g., a network entity and / or UE) accessing the downlink sub-band 420 of the second sub-band may perform the LBT process before accessing licensed spectrum for outdoor network deployment.
[0128] Figure 5 An example of a duplex scheme 500 supporting band-sharing technology according to one or more aspects of this disclosure is shown. Duplex scheme 500 may implement aspects of wireless communication system 100 and / or wireless communication system 200 and / or duplex scheme 300 and / or duplex scheme 400. The aspects of duplex scheme 500 may be implemented at or by a UE and / or network entity, which may be examples of the corresponding devices described herein. Duplex scheme 500 illustrates an example of a first frequency-based duplex scheme based on overlapping spectrum bands being divided into three sub-bands.
[0129] As discussed above, the aspects of the technology described herein provide rules that can be configured within an outdoor network deployment provided by a network entity to support or otherwise facilitate coexistence with an indoor network using overlapping frequency bands. Rules for wireless communication on the outdoor network can be indicated to the UE. Indoor and outdoor networks may share overlapping frequency bands. Overlapping frequency bands may be allocated or otherwise used as unlicensed spectrum for the indoor network, but may also be allocated or otherwise used as licensed spectrum for the outdoor network.
[0130] The rules indicated to the UE typically define LBT schemes and / or duplex schemes to be applied to communications in the licensed spectrum of the outdoor network, which avoid or mitigate interference between the indoor and outdoor networks. Duplex scheme 500 illustrates a non-limiting example of both LBT and duplex schemes for performing wireless communication in the licensed spectrum of the outdoor network deployment in a manner that mitigates or eliminates interference between the indoor and outdoor networks.
[0131] The overlapping frequency band can be divided into a first subband (e.g., subband 1) including downlink subband 505, a second subband (e.g., subband 2) including downlink subband 525, and a third subband including uplink subband 535. A portion of some or all of the downlink transmission duration allocated to downlink subband 505 can be allocated to uplink control transmission using uplink subband 510. Furthermore, during some or all of the downlink transmission duration, the first subband can be further subdivided into downlink subband 515 and uplink subband 520. A portion of some or all of the downlink transmission duration of downlink subband 525 can also be allocated to uplink control transmission using uplink subband 530.
[0132] This can include downlink subband 505-a, uplink subband 510-a, downlink subband 525-a, uplink subband 530-a and uplink subband 535-a during a first transmission duration, downlink subband 505-b, uplink subband 510-b, downlink subband 525-b, uplink subband 530-b and uplink subband 535-b during a second transmission duration, and downlink subband 515-a and uplink subband 520-a during a third transmission duration. a) Downlink subband 525-c, uplink subband 530-c and uplink subband 535-c, downlink subband 515-b, uplink subband 520-b, downlink subband 525-d, uplink subband 530-d and uplink subband 535-d during the fourth transmission duration, and downlink subband 505-c, uplink subband 510-c, downlink subband 525-e, uplink subband 530-e and uplink subband 535-e during the fifth transmission duration.
[0133] Therefore, duplex scheme 500 illustrates a non-limiting example of a duplex scheme including frequency-based duplexing, wherein overlapping frequency bands are divided into multiple subbands, and some or all of the subbands can be further subdivided into time-based and / or frequency-based duplexing schemes (e.g., TDD / FDD / SBFD). This flexibility in configuring or otherwise allocating overlapping frequency bands supports improved coexistence with indoor networks operating in the same overlapping frequency bands.
[0134] Different LBT schemes can be applied according to duplex scheme 500. An LBT scheme may include the UE and / or network entity identifying or otherwise determining that a first subband is allocated or otherwise assigned for dedicated use within a licensed spectrum (e.g., TDD or SBFD), a second subband is allocated or otherwise assigned for shared use by the network entity and the UE (e.g., where low duty cycle CET may be permitted), and a third subband is allocated or otherwise assigned for shared use by the UE. That is, the second subband may be a subband shared with the network entity using CET and the UE performing the LBT procedure prior to access (e.g., with low duty cycle CET). The third subband may be a subband shared with the UE performing the LBT procedure, where the network entity is not configured to access the third subband.
[0135] Figure 6A block diagram 600 of a device 605 supporting band-sharing technology according to one or more aspects of this disclosure is shown. Device 605 may be an example of various aspects of UE 115 as described herein. Device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. Device 605 or one or more components of device 605 (e.g., receiver 610, transmitter 615, and communication manager 620) may include one or more processors, memory coupled to one or more processors, and instructions stored in memory executable by one or more processors to enable one or more processors to perform the shared spectrum coexistence features discussed herein. Each of these components may communicate with each other (e.g., via one or more buses).
[0136] Receiver 610 may provide components for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to band-sharing technologies). The information may be passed to other components of device 605. Receiver 610 may utilize a single antenna or a collection of antennas.
[0137] Transmitter 615 may provide components for transmitting signals generated by other components of device 605. For example, transmitter 615 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to band-sharing technologies). In some examples, transmitter 615 may be co-located with receiver 610 in a transceiver module. Transmitter 615 may utilize a single antenna or a collection of multiple antennas.
[0138] The communication manager 620, receiver 610, transmitter 615, or various combinations thereof, or various components thereof, may be examples of components used to perform various aspects of the band-sharing technology as described herein. For example, the communication manager 620, receiver 610, transmitter 615, or various combinations thereof or components thereof may be able to perform one or more of the functions described herein.
[0139] In some examples, the communication manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be implemented in hardware (e.g., in communication management circuitry). The hardware may include at least one of the following: a processor, digital signal processor (DSP), central processing unit (CPU), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, microcontroller, discrete gate or transistor logic component, discrete hardware component, or any combination thereof, configured as or otherwise individually or collectively to support components for performing the functions described herein. In some examples, at least one processor and at least one memory coupled to said at least one processor may be configured to perform one or more of the functions described herein (e.g., instructions stored in at least one memory are executed individually or collectively by one or more processors).
[0140] Additionally or alternatively, the communication manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be implemented in code executed by at least one processor (e.g., implemented as communication management software or firmware). If implemented in code executed by at least one processor, the functionality of the communication manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be performed by (e.g., a general-purpose processor, DSP, CPU, ASIC, FPGA, microcontroller, or any combination of these or other programmable logic devices configured, either individually or collectively, as components for performing the functions described in this disclosure).
[0141] In some examples, the communication manager 620 may be configured to use a receiver 610, a transmitter 615, or both, or otherwise cooperate with them to perform various operations (e.g., receiving, acquiring, monitoring, outputting, transmitting). For example, the communication manager 620 may receive information from the receiver 610, transmit information to the transmitter 615, or be integrated with the receiver 610, the transmitter 615, or both to acquire information, output information, or perform various other operations as described herein.
[0142] The communication manager 620 may support wireless communication according to examples disclosed herein. For example, the communication manager 620 may be capable of, configured to, or operable to support components for receiving instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor and outdoor network deployments. The communication manager 620 may also be capable of, configured to, or operable to support components for performing wireless communication on an outdoor network deployment according to one or more rules.
[0143] By including or configuring a communication manager 620 according to an example as described herein, device 605 (e.g., controlling receiver 610, transmitter 615, communication manager 620, or a combination thereof, or at least one processor otherwise coupled to them) can support techniques for improved coexistence rules applied by outdoor network deployments operating in frequency bands overlapping with indoor networks. The rules may define duplex and / or LBT schemes to be applied by the UE and / or network entities when performing wireless communication in the licensed spectrum of the outdoor network using frequency bands overlapping with the indoor network.
[0144] Figure 7 A block diagram 700 of a device 705 supporting band-sharing technology according to one or more aspects of this disclosure is shown. Device 705 may be an example of aspects of device 605 or UE 115 as described herein. Device 705 may include a receiver 710, a transmitter 715, and a communication manager 720. Device 705 or one or more components of device 705 (e.g., receiver 710, transmitter 715, and communication manager 720) may include one or more processors, memory coupled to one or more processors, and instructions stored in memory executable by one or more processors to enable one or more processors to perform the shared spectrum coexistence features discussed herein. Each of these components may communicate with each other (e.g., via one or more buses).
[0145] Receiver 710 may provide components for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to band-sharing technologies). The information may be passed to other components of device 705. Receiver 710 may utilize a single antenna or a collection of antennas.
[0146] Transmitter 715 may provide components for transmitting signals generated by other components of device 705. For example, transmitter 715 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to band-sharing technologies). In some examples, transmitter 715 may be co-located with receiver 710 in a transceiver module. Transmitter 715 may utilize a single antenna or a collection of multiple antennas.
[0147] Device 705 or its various components may be examples of parts used to perform various aspects of the frequency sharing technology as described herein. For example, communication manager 720 may include coexistence rule manager 725, channel access manager 730, or any combination thereof. Communication manager 720 may be examples of aspects of communication manager 620 as described herein. In some examples, communication manager 720 or its various components may be configured to use receiver 710, transmitter 715, or both, or otherwise cooperate with them to perform various operations (e.g., receiving, acquiring, monitoring, outputting, transmitting). For example, communication manager 720 may receive information from receiver 710, transmit information to transmitter 715, or be integrated in combination with receiver 710, transmitter 715, or both to acquire information, output information, or perform various other operations as described herein.
[0148] Communication Manager 720 may support wireless communication according to examples disclosed herein. Coexistence Rule Manager 725 is capable of, configured to, or operable to support components for receiving instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein one or more rules facilitate coexistence between the indoor and outdoor network deployments. Channel Access Manager 730 is capable of, configured to, or operable to support components for performing wireless communication on an outdoor network deployment according to one or more rules.
[0149] In some cases, the coexistence rule manager 725 and the channel access manager 730 may each be a processor (e.g., a transceiver processor, a radio processor, a transmitter processor, or a receiver processor) or at least a part of a processor. The processor may be coupled to memory and execute instructions stored in that memory that enable the processor to perform or facilitate the features of the coexistence rule manager 725 and the channel access manager 730 discussed herein. The transceiver processor may co-locate with and / or communicate with (e.g., instruct its operation) the transceiver of the device. The radio processor may co-locate with and / or communicate with (e.g., instruct its operation) the radio components of the device (e.g., NR radio components, LTE radio components, Wi-Fi radio components). The transmitter processor may co-locate with and / or communicate with (e.g., instruct its operation) the transmitter of the device. The receiver processor may co-locate with and / or communicate with (e.g., instruct its operation) the receiver of the device.
[0150] Figure 8A block diagram 800 of a communication manager 820 supporting frequency band sharing technology according to one or more aspects of this disclosure is shown. The communication manager 820 may be an example of a communication manager 620, a communication manager 720, or aspects thereof as described herein. The communication manager 820 or its various components may be examples of components for implementing various aspects of the frequency sharing technology as described herein. For example, the communication manager 820 may include a coexistence rule manager 825, a channel access manager 830, an LBT manager 835, a space manager 840, or any combination thereof. Each of these components, or its components or sub-components (e.g., one or more processors, one or more memories), may communicate directly or indirectly with each other (e.g., via one or more buses).
[0151] Communication manager 820 may support wireless communication according to examples disclosed herein. Coexistence rule manager 825 is capable of, configured to, or operable to support components for receiving instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein one or more rules facilitate coexistence between the indoor and outdoor network deployments. Channel access manager 830 is capable of, configured to, or operable to support components for performing wireless communication on an outdoor network deployment according to one or more rules.
[0152] In some examples, outdoor networks using licensed spectrum include at least one of TDD networks, FDD networks, or SBFD networks. In some examples, a first subband of the SBFD network is used for uplink communication based on the LBT procedure, and a second subband of the SBFD network is used for downlink communication without the LBT procedure. In some examples, indoor networks using unlicensed networks include different TDD networks in which the UE is in a disconnected state.
[0153] In some examples, to support wireless communication on outdoor network deployments, the LBT manager 835 is capable of, configured to, or operable to support components for performing the LBT process prior to transmission to the outdoor network deployment according to one or more rules.
[0154] In some examples, the LBT manager 835 is capable of, configured to, or operable to support components for determining that wireless communications on an outdoor network deployment are time-division duplexed to include uplink transmission duration and downlink transmission duration, and wherein, according to one or more rules, the LBT process occurs before wireless communications during the uplink transmission duration but not before wireless communications during the downlink transmission duration.
[0155] In some examples, the LBT manager 835 is capable of, configured to, or operable to support components for determining the association between wireless communications on an outdoor network deployment and a first subband and a second subband of an overlapping frequency band, wherein the first subband is allocated for uplink communication and the second subband is allocated for downlink communication, and the LBT process is based on the first subband according to one or more rules. In some examples, the LBT process is based on the UE according to one or more rules.
[0156] In some examples, the LBT manager 835 is capable of, configured to, or operable to support components for determining the association of wireless communications on an outdoor network deployment with a first subband and a second subband of an overlapping frequency band, wherein the first subband is allocated for wireless communications that do not require an LBT process, and the second subband is allocated for wireless communications that require an LBT process.
[0157] In some examples, the first subband is allocated for CET performed by the UE. In some examples, the first subband is allocated for dedicated use within the licensed spectrum. In some examples, the first subband is allocated for CET performed by network entities and for one or more types of duty cycle transmissions by the UE. In some examples, the second subband is allocated for LBT procedures for any transmission requests on the second subband. In some examples, the second subband is allocated for limited use of CET by both the UE and network entities. In some examples, the second subband is allocated for limited use of CET by the UE alone. In some examples, the second subband is allocated for dedicated use within the licensed spectrum.
[0158] In some examples, the LBT manager 835 is capable of, configured to, or operable to support components for determining the association of wireless communications on an outdoor network deployment with a first subband, a second subband, and a third subband of an overlapping frequency band, wherein the first subband is allocated for dedicated use within a licensed spectrum, the second subband is allocated for shared use by network entities and UEs, and the third subband is allocated for shared use by UEs. In some examples, the first subband is time-division duplex or full-duplex. In some examples, the second subband is allocated for CET (Continuous Electronic Transmission) by network entities, or for LBT-based communications by UEs, or for certain types of duty cycle CETs by UEs. In some examples, the third subband is allocated for LBT-based communications by UEs. In some examples, the third subband is not accessible to network entities according to one or more rules.
[0159] In some examples, the Space Manager 840 is capable of, configured to, or operable to support components for performing the LBT process based on spatial parameters prior to the first sub-band of an overlapping frequency band deployed in an outdoor network, according to one or more rules.
[0160] In some cases, the coexistence rule manager 825, channel access manager 830, LBT manager 835, and space manager 840 may each be a processor (e.g., a transceiver processor, radio processor, transmitter processor, or receiver processor) or at least part of a processor. The processor may be coupled to memory and execute instructions stored in memory that enable the processor to perform or facilitate the features of the coexistence rule manager 825, channel access manager 830, LBT manager 835, and space manager 840 discussed herein.
[0161] Figure 9 A diagram of a system 900 including a device 905 supporting band-sharing technology according to one or more aspects of this disclosure is shown. Device 905 may be an example of device 605, device 705, or UE 115 as described herein, or may include components thereof. Device 905 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof (e.g., wirelessly). Device 905 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, such as a communication manager 920, an input / output (I / O) controller 910, a transceiver 915, an antenna 925, at least one memory 930, code 935, and at least one processor 940. These components may communicate electronically or be otherwise coupled (e.g., operative ground, communication ground, functional ground, electronic ground, electrical ground) via one or more buses (e.g., bus 945).
[0162] I / O controller 910 manages the input and output signals of device 905. I / O controller 910 can also manage peripheral devices not integrated into device 905. In some cases, I / O controller 910 may represent a physical connection or port to an external peripheral device. In some cases, I / O controller 910 may utilize an operating system such as iOS. ® ANDROID ® MS-DOS ® MS-WINDOWS ® OS / 2 ® UNIX ® LINUX ®Or another known operating system. Additionally or alternatively, the I / O controller 910 may represent, or interact with, a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 910 may be implemented as part of one or more processors, such as at least one processor 940. In some cases, a user may interact with the device 905 via the I / O controller 910 or via hardware components controlled by the I / O controller 910.
[0163] In some cases, device 905 may include a single antenna 925. However, in other cases, device 905 may have more than one antenna 925, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. Transceiver 915 may communicate bidirectionally via one or more antennas 925, a wired or wireless link as described herein. For example, transceiver 915 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 915 may also include a modem for: modulating packets; providing the modulated packets to one or more antennas 925 for transmission; and demodulating packets received from one or more antennas 925. Transceiver 915, or transceiver 915 and one or more antennas 925, may be an example of transmitter 615, transmitter 715, receiver 610, receiver 710, or any combination thereof or components thereof as described herein.
[0164] At least one memory 930 may include random access memory (RAM) and read-only memory (ROM). At least one memory 930 may store computer-readable, computer-executable code 935, including instructions that, when executed by at least one processor 940, cause device 905 to perform the various functions described herein. Code 935 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 935 may not be directly executable by at least one processor 940, but may enable a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, among other things, at least one memory 930 may also include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.
[0165] At least one processor 940 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, at least one processor 940 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into at least one processor 940. At least one processor 940 may be configured to execute computer-readable instructions stored in memory (e.g., at least one memory 930) to cause device 905 to perform various functions (e.g., functions or tasks supporting band-sharing technologies). For example, device 905 or components of device 905 may include at least one processor 940 and at least one memory 930 coupled to or coupled to at least one processor 940, wherein at least one processor 940 and at least one memory 930 are configured to perform the various functions described herein. In some examples, at least one processor 940 may include multiple processors, and at least one memory 930 may include multiple memories. One or more of a plurality of processors may be coupled to one or more of a plurality of memories, which may be configured individually or collectively to perform the various functions described herein. In some examples, at least one processor 940 may be a component of a processing system, which may refer to a system of machines (such as a series of machines), circuitry (including, for example, one or both of processor circuitry (which may include at least one processor 940) and memory circuitry (which may include at least one memory 930)) or components that receive or receive input and process the input to produce, generate or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. Thus, at least one processor 940 or a processing system including at least one processor 940 may be configured, capable of being configured, or operable to cause device 905 to perform one or more of the functions described herein. Furthermore, as described herein, “configured to,” “capable of being configured,” and “operable to” are used interchangeably and may be associated with the ability to perform one or more of the functions described herein when executing code stored in at least one memory 930 or otherwise.
[0166] The communication manager 920 may support wireless communication according to examples disclosed herein. For example, the communication manager 920 may be capable of, configured to, or operable to support components for receiving instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor and outdoor network deployments. The communication manager 920 may also be capable of, configured to, or operable to support components for performing wireless communication on an outdoor network deployment according to one or more rules.
[0167] By including or configuring a communication manager 920 according to an example as described herein, device 905 can support techniques for improved coexistence rules applied by outdoor network deployments operating in frequency bands overlapping with indoor networks. The rules can define duplex and / or LBT schemes to be applied by the UE and / or network entities when performing wireless communication in the licensed spectrum of the outdoor network using frequency bands overlapping with the indoor network.
[0168] In some examples, the communication manager 920 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using a transceiver 915, one or more antennas 925, or any combination thereof, or otherwise cooperating with them. Although the communication manager 920 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 920 may be supported or performed by at least one processor 940, at least one memory 930, code 935, or any combination thereof. For example, code 935 may include instructions that can be executed by at least one processor 940 to cause device 905 to perform various aspects of the band-sharing technology as described herein, or at least one processor 940 and at least one memory 930 may be otherwise configured to perform or support such operations individually or jointly.
[0169] Figure 10 A flowchart illustrating a method 1000 supporting band-sharing technology according to various aspects of this disclosure is shown. The operation of method 1000 can be implemented by a UE or its components as described herein. For example, the operation of method 1000 can be implemented by, as referenced... Figures 1 to 9 The UE 115 described herein performs the following: In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functions.
[0170] At 1005, the method may include receiving instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum used for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor and outdoor network deployments. Operation of block 1005 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1005 may be provided by reference to [reference needed]. Figure 8 The coexistence rule manager 825 described is used to execute this.
[0171] At 1010, the method may include performing wireless communication on an outdoor network deployment according to one or more rules. The operation of block 1010 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1010 may be provided by reference to [reference needed]. Figure 8 The described channel access manager 830 is used to perform this.
[0172] Figure 11 A flowchart illustrating a method 1100 supporting band-sharing technology according to various aspects of this disclosure is shown. Operation of method 1100 may be implemented by a UE or its components as described herein. For example, operation of method 1100 may be implemented by, as referenced... Figures 1 to 9 The UE 115 described herein performs the following: In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functions.
[0173] At 1105, the method may include receiving indications for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum used for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor and outdoor network deployments. Operation of block 1105 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1105 may be provided by reference to [reference needed]. Figure 8 The coexistence rule manager 825 described is used to execute this.
[0174] At 1110, the method may include performing an LBT process prior to transmission to an outdoor network deployment, based on one or more rules. The operation of box 1110 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1110 may be determined by reference to [reference needed]. Figure 8 The LBT Manager 835 described is executed.
[0175] At 1115, the method may include performing wireless communication on an outdoor network deployment according to one or more rules. The operation of block 1115 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1115 may be derived from references... Figure 8 The described channel access manager 830 is used to perform this.
[0176] Figure 12 A flowchart illustrating a method 1200 supporting band-sharing technology according to various aspects of this disclosure is shown. Operation of method 1200 may be implemented by a UE or its components as described herein. For example, operation of method 1200 may be implemented by, as referenced... Figures 1 to 9 The UE 115 described herein performs the following: In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functions.
[0177] At 1205, the method may include receiving indications for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum used for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor and outdoor network deployments. Operation of block 1205 may be performed according to examples as disclosed herein. In some examples, aspects of operation of 1205 may be provided by reference to [reference needed]. Figure 8 The coexistence rule manager 825 described is used to execute this.
[0178] At 1210, the method may include performing an LBT process based on spatial parameters prior to the first sub-band of the overlapping frequency band of the access outdoor network deployment, according to one or more rules. The operation of block 1210 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1210 may be provided by reference to [reference needed]. Figure 8 The space manager 840 described is used to execute this.
[0179] At 1215, the method may include performing wireless communication on an outdoor network deployment according to one or more rules. The operation of block 1215 may be performed according to examples disclosed herein. In some examples, aspects of the operation of 1215 may be provided by reference to [reference needed]. Figure 8 The described channel access manager 830 is used to execute this.
[0180] The following provides an overview of the various aspects of this disclosure:
[0181] Aspect 1: A method for performing wireless communication at a UE, the method comprising: receiving an indication of one or more rules for performing wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor network and the outdoor network deployment; and performing the wireless communication on the outdoor network deployment according to the one or more rules.
[0182] Aspect 2: According to the method of aspect 1, the outdoor network using the licensed spectrum includes at least one of a TDD network, an FDD network, or an SBFD network.
[0183] Aspect 3: The method according to any one of Aspects 1 to 2, wherein the first subband of the SBFD network is used for uplink communication based on the LBT process, and the second subband of the SBFD network is used for downlink communication without the LBT process.
[0184] Aspect 4: The method according to any one of Aspects 1 to 3, wherein the indoor network using the unlicensed network includes different TDD networks in which the UE is in a disconnected state.
[0185] Aspect 5: The method according to any one of aspects 1 to 4, wherein performing the wireless communication on the outdoor network deployment includes: performing an LBT process before transmitting to the outdoor network deployment according to one or more rules.
[0186] Aspect 6: The method according to any one of Aspects 1 to 5, the method further comprising: determining that the wireless communication on the outdoor network deployment is time-division duplexed to include an uplink transmission duration and a downlink transmission duration, and wherein, according to one or more rules, the LBT process occurs before the wireless communication during the uplink transmission duration but not before the wireless communication during the downlink transmission duration.
[0187] Aspect 7: The method according to any one of Aspects 1 to 6, the method further comprising: determining that the wireless communication on the outdoor network deployment is associated with a first subband of the overlapping frequency band and a second subband of the overlapping frequency band, wherein the first subband is allocated for uplink communication and the second subband is allocated for downlink communication, wherein the LBT process is based on the first subband according to the one or more rules.
[0188] Aspect 8: The method according to any one of aspects 1 to 7, wherein the LBT process is based on the UE according to the one or more rules.
[0189] Aspect 9: The method according to any one of Aspects 1 to 8, the method further comprising: determining that the wireless communication on the outdoor network deployment is associated with a first sub-band of the overlapping frequency band and a second sub-band of the overlapping frequency band, wherein the first sub-band is allocated for wireless communication that does not require the LBT process, and the second sub-band is allocated for wireless communication that requires the LBT process.
[0190] Aspect 10: The method according to any one of Aspects 1 to 9, wherein the first subband is allocated for CET performed by the UE.
[0191] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the first sub-band is allocated for dedicated use within the licensed spectrum.
[0192] Aspect 12: The method according to any one of Aspects 1 to 11, wherein the first subband is allocated for CET performed by a network entity and for one or more types of duty cycle transmission of the UE.
[0193] Aspect 13: The method according to any one of Aspects 1 to 12, wherein the second subband is assigned to the LBT process for any transmission request on the second subband.
[0194] Aspect 14: The method according to any one of Aspects 1 to 13, wherein the second subband is allocated for limited use of CET by the UE and network entities.
[0195] Aspect 15: The method according to any one of Aspects 1 to 14, wherein the second subband is allocated for limited use of CET by the UE only.
[0196] Aspect 16: The method according to any one of Aspects 1 to 15, wherein the second subband is allocated for dedicated use within the licensed spectrum.
[0197] Aspect 17: The method according to any one of Aspects 1 to 16, the method further comprising: determining that the wireless communication on the outdoor network deployment is associated with a first sub-band of the overlapping frequency band, a second sub-band of the overlapping frequency band, and a third sub-band of the overlapping frequency band, wherein the first sub-band is allocated for dedicated use within the licensed spectrum, the second sub-band is allocated for shared use by network entities and UEs, and the third sub-band is allocated for shared use by UEs.
[0198] Aspect 18: The method according to any one of Aspects 1 to 17, wherein the first sub-band is time-division duplex or full-duplex.
[0199] Aspect 19: The method according to any one of Aspects 1 to 18, wherein the second subband is allocated for CET performed by a network entity, or for LBT-based communication performed by the UE, or for certain types of duty cycle CET performed by the UE.
[0200] Aspect 20: The method according to any one of Aspects 1 to 19, wherein the third subband is allocated for LBT-based communication performed by the UE in accordance with one or more rules, and the third subband is inaccessible to network entities.
[0201] Aspect 21: The method according to any one of aspects 1 to 20, the method further comprising: performing an LBT process based on spatial parameters prior to accessing a first sub-band of the overlapping frequency band deployed by the outdoor network, according to the one or more rules.
[0202] Aspect 22: A UE for wireless communication, the UE comprising: one or more memories storing processor-executable code; and one or more processors coupled to the one or more memories and capable of operating individually or jointly to execute the code, so that the UE performs a method according to any one of aspects 1 to 21.
[0203] Aspect 23: A UE for wireless communication, the UE including at least one component for performing the method according to any one of aspects 1 to 21.
[0204] Aspect 24: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform the method according to any one of aspects 1 to 21.
[0205] It should be noted that the methods described herein describe possible specific implementations, and the operations and steps can be rearranged or otherwise modified, and other specific implementations are also possible. Furthermore, aspects from two or more of these methods can be combined.
[0206] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein are also applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described are applicable to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.
[0207] The information and signals described herein can be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or optical particles, or any combination thereof.
[0208] The various exemplary blocks and components described herein can be implemented or performed using a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic unit, discrete hardware component, or any combination thereof, designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in alternative embodiments, a processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration). Any function or operation described herein that can be performed by a processor may be performed by multiple processors capable of performing the described functions or operations individually or jointly.
[0209] The functionality described herein can be implemented using hardware, software executed by a processor, firmware, or any combination thereof. When implemented using software executed by a processor, the functionality can be stored as one or more instructions or code on a computer-readable medium or transmitted using one or more instructions or code on a computer-readable medium. Other examples and specific implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functionality described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination of these. Features implementing the functionality can also be physically located in various locations, including portions distributed such that the functionality is implemented at different physical locations.
[0210] Computer-readable media includes both non-transitory computer storage media and communication media, encompassing any medium that facilitates the transfer of a computer program from one location to another. Non-transitory storage media can be any available medium accessible by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compressed optical disc (CD) ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code components in the form of instructions or data structures, and accessible by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Furthermore, any connection is appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer-readable media. As used herein, disks and optical discs include CDs, laser discs, optical discs, digital multifunction discs (DVDs), floppy disks, and Blu-ray discs. Disks can magnetically reproduce data, and optical discs can optically reproduce data using lasers. Combinations of the above are also included within the scope of computer-readable media. Any function or operation described herein that can be performed by memory can be performed by multiple memories capable of performing the described function or operation individually or jointly.
[0211] As used herein, the word "or" in a list of items (e.g., a list of items accompanied by phrases such as "at least one of" or "one or more of") in the claims indicates an inclusive list, such that a list of at least one of, for example, A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Furthermore, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an example step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".
[0212] As used herein, including in claims, the article “a” preceding a noun is open-ended and is understood to refer to “at least one” or “one or more” of those nouns. Therefore, the terms “a,” “at least one,” “one or more,” and “at least one of one or more” are interchangeable. For example, where a claim enumerates “components” performing one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “component” having a characteristic or performing a function may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent references to a component introduced with the article “a” using the terms “the” or “the” can refer to any or all of the one or more components. For example, a component introduced with the article “a” can be understood to mean “one or more components,” and subsequent reference to “the component” in a claim can be understood as equivalent to referring to “at least one of the one or more components.” Similarly, subsequent references to a component introduced with the terms “the” or “the” as “one or more components” can refer to any or all of the one or more components. For example, reference to "the one or more components" in the subsequent claims can be understood as equivalent to reference to "at least one of the one or more components".
[0213] The term "determine" encompasses a variety of actions, and therefore, "determine" can include calculation, computation, processing, derivation, investigation, lookup (such as by searching in a table, database, or other data structure), identification, and similar actions. Furthermore, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data stored in memory), etc. Moreover, "determine" can include parsing, obtaining, selecting, choosing, building, and other similar actions.
[0214] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, various components of the same type can be distinguished by adding a dash after the reference numerals and a second reference numeral for differentiation between similar components. If only the first reference numeral is used in the description, the description applies to any of the similar components having the same first reference numeral, regardless of the second or other subsequent reference numerals.
[0215] The description herein, illustrated with reference to the accompanying drawings, describes an example configuration and does not represent all achievable examples or those within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," not "preferred" or "advantageous over other examples." The detailed description includes specific details used to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concept of the described examples.
[0216] The description herein is provided to enable those skilled in the art to implement or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A user equipment (UE), the user equipment (UE) comprising: One or more memories, wherein the one or more memories store processor-executable code; and One or more processors coupled to one or more memories, wherein the one or more processors are capable of operating individually or jointly to execute the code to enable the UE: Receive instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor network and the outdoor network deployment; as well as The wireless communication is performed on the outdoor network deployment according to one or more of the rules.
2. The UE of claim 1, wherein the outdoor network using the licensed spectrum comprises at least one of a time division duplex (TDD) network, a frequency division duplex (FDD) network, or a subband full-duplex (SBFD) network.
3. The UE according to claim 2, wherein the first subband of the SBFD network is used for uplink communication based on the Listen-Before-Speak (LBT) procedure, and the second subband of the SBFD network is used for downlink communication without the LBT procedure.
4. The UE of claim 2, wherein the indoor network using the unlicensed network includes different TDD networks in which the UE is in a disconnected state.
5. The UE of claim 1, wherein, in order to perform the wireless communication on the outdoor network deployment, the one or more processors are further configured individually or jointly to cause the UE to: According to one or more of the rules, a Listen Before Talk (LBT) process is performed before sending to the outdoor network deployment.
6. The UE of claim 5, wherein the one or more processors are further configured individually or collectively to cause the UE to: The wireless communication on the outdoor network deployment is determined to be time-division duplexed to include an uplink transmission duration and a downlink transmission duration, and wherein, according to one or more rules, the LBT process occurs before the wireless communication during the uplink transmission duration but not before the wireless communication during the downlink transmission duration.
7. The UE of claim 5, wherein the one or more processors are further configured individually or collectively to cause the UE to: The wireless communication on the outdoor network deployment is determined to be associated with a first subband and a second subband of the overlapping frequency band, wherein the first subband is allocated for uplink communication and the second subband is allocated for downlink communication, wherein the LBT process is based on the first subband according to one or more rules.
8. The UE of claim 5, wherein the LBT process is based on the UE according to the one or more rules.
9. The UE of claim 5, wherein the one or more processors are further configured individually or collectively to cause the UE to: The wireless communication on the outdoor network deployment is determined to be associated with a first sub-band of the overlapping frequency band and a second sub-band of the overlapping frequency band, wherein the first sub-band is allocated for wireless communication that does not require the LBT process, and the second sub-band is allocated for wireless communication that requires the LBT process.
10. The UE of claim 9, wherein the first subband is allocated for Clear Transmission of Clear Channel Assessment (CCA) (CET) performed by the UE.
11. The UE of claim 9, wherein the first subband is allocated for dedicated use within the licensed spectrum.
12. The UE of claim 9, wherein the first subband is allocated for free transmission (CET) by a network entity for Open Channel Assessment (CCA) and for one or more types of duty cycle transmission for the UE.
13. The UE of claim 9, wherein the second subband is assigned to the LBT procedure for any transmission request on the second subband.
14. The UE of claim 9, wherein the second subband is allocated for limited use by the UE and network entities for Clear Transmission of the Channel Assessment (CCA) Exemption (CET).
15. The UE of claim 9, wherein the second subband is allocated for limited use by the UE for Free Transmission of the Clear Channel Assessment (CCA) (CET) only.
16. The UE of claim 9, wherein the second subband is allocated for dedicated use within the licensed spectrum.
17. The UE of claim 5, wherein the one or more processors are further configured individually or collectively to cause the UE to: The wireless communication on the outdoor network deployment is associated with a first sub-band, a second sub-band, and a third sub-band of the overlapping frequency band, wherein the first sub-band is allocated for dedicated use within the licensed spectrum, the second sub-band is allocated for shared use by network entities and UEs, and the third sub-band is allocated for shared use by UEs.
18. The UE of claim 17, wherein the first subband is time-division duplex or full-duplex.
19. A method for conducting wireless communication at a user equipment (UE), the method comprising: Receive instructions for one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor network and the outdoor network deployment; as well as The wireless communication is performed on the outdoor network deployment according to one or more of the rules.
20. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Components for receiving instructions on one or more rules for wireless communication on an outdoor network deployment using licensed spectrum, the licensed spectrum including overlapping bands relative to unlicensed spectrum for wireless communication on an indoor network, wherein the one or more rules facilitate coexistence between the indoor network and the outdoor network deployment; and A component for performing the wireless communication on the outdoor network deployment according to one or more of the rules.