Wireless communication method and communication apparatus for processing resources in a wireless communication system

Abstract

The present invention provides a method and communication apparatus for improving the resource utilization efficiency for communication in wireless communication systems. [Solution] In a wireless communication system comprising a controller, a network, and a plurality of communication devices, the method used by the communication device to process resources for communication includes the steps of performing at least one communication operation with the network NW via a first channel (CH) and operating on a second CH based on at least one of instructions, time constraints, and interference conditions, wherein at least one non-primary channel access (NPCA) CH is acquired by the network.

Description

Technical Field

[0007] , ,

[0008] ,

[0001] 〔Cross - Reference to Related Applications〕 This application claims the benefit of U.S. Provisional Application No. 63 / 716,686, filed on November 5, 2024. The content thereof is incorporated herein by reference.

Background Art

[0002] 1. Field of the Invention

[0003] The present disclosure relates to a wireless communication method and a communication device used in a wireless communication system, and particularly to a wireless communication method and a communication device for processing resources for communication.

[0004] 2. Description of the Related Art

[0005] In a wireless communication system, it is desirable to allocate sufficient resources for the network and the communication device to communicate with each other. Nevertheless, always providing resources is not an optimal solution. This reduces the resource utilization efficiency. Therefore, how to process resources for communication is an important problem to be solved.

Summary of the Invention

[0006] Therefore, the present disclosure provides a method and a communication device for processing resources for communication in a wireless communication system to solve the above problems.

[0007] The wireless communication method of the communication device includes performing at least one communication operation with a network via a first channel (CH), and operating on a second CH based on at least one of an indication, a time constraint, and an interference condition, where at least one non - primary CH access (NPCA) CH is obtained by the network.

[0008] The communication device includes at least one storage device and at least one processing circuit coupled to the at least one storage device, wherein the at least one storage device is configured to store instructions, and the at least one processing circuit is configured to execute instructions that perform at least one communication operation with a network via a first channel (CH), and instructions that operate on a second CH based on at least one of instructions, time constraints, and interference conditions, wherein at least one non-primary channel access (NPCA) CH is acquired by the network.

[0009] A wireless communication method for a network communicating with at least one communication device includes the steps of performing at least one communication operation with one of the at least one communication devices via a first channel (CH), and operating on a second CH based on at least one of instructions, time constraints, and interference conditions, wherein at least one non-primary channel access (NPCA) CH is acquired by the network.

[0010] These and other objects of the present invention will undoubtedly become apparent to those skilled in the art after reading the following detailed description of preferred embodiments shown in various figures and drawings. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic diagram of a wireless communication system according to one embodiment of the present disclosure.

[0012] [Figure 2] This is a schematic diagram of a communication device according to one embodiment of the present disclosure.

[0013] [Figure 3] This is a flowchart of the process according to one embodiment of the present disclosure.

[0014] [Figure 4] This is a flowchart of the process according to one embodiment of the present disclosure.

[0015] [Figure 5] It is a sequence diagram of a process according to an embodiment of the present disclosure.

[0016] [Figure 6] It is a flowchart of a process according to an embodiment of the present disclosure.

[0017] [Figure 7] It is a schematic diagram of primary CH and non-primary CH according to an embodiment of the present disclosure.

[0018] [Figure 8] It is a sequence diagram of a process according to an embodiment of the present disclosure.

[0019] [Figure 9A] It is a schematic diagram of primary CH and non-primary CH according to an embodiment of the present disclosure.

[0020] <函数名称> [Figure 9B] It is a schematic diagram of primary CH and non-primary CH according to an embodiment of the present disclosure.

[0021] [Figure 9C] It is a schematic diagram of primary CH and non-primary CH according to an embodiment of the present disclosure.

[0022] [Figure 10] It is a flowchart of a process according to an embodiment of the present disclosure.

[0023] [Figure 11] It is a flowchart of a process according to an embodiment of the present disclosure.

[0024] [Figure 12] It is a sequence diagram of a process according to an embodiment of the present disclosure.

[0025] [Figure 13]This is a flowchart of the process according to one embodiment of the present disclosure.

[0026] [Figure 14] This is a flowchart of the process according to one embodiment of the present disclosure.

[0027] [Figure 15] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0028] [Figure 16] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0029] [Figure 17] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0030] [Figure 18] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0031] [Figure 19] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0032] [Figure 20] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0033] [Figure 21] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0034] [Figure 22] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0035] [Figure 23]This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0036] [Figure 24] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0037] [Figure 25] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0038] [Figure 26] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0039] [Figure 27] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0040] [Figure 28] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0041] [Figure 29] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0042] [Figure 30] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0043] [Figure 31] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0044] [Figure 32] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0045] [Figure 33] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0046] [Figure 34] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0047] [Figure 35] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0048] [Figure 36] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0049] [Figure 37] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure.

[0050] [Figure 38] This is a schematic diagram of a primary CH and a non-primary CH according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0051] Figure 1 is a schematic diagram of a wireless communication system 10 according to one embodiment of the present disclosure. The wireless communication system 10 is simply composed of a controller 12, a network 14, and a plurality of communication devices 16. The wireless communication system 10 may be any wireless communication system such as a wireless local area network (WLAN) system (e.g., Wi-Fi), a personal area network (PAN) system (e.g., Bluetooth® (BT)), a digital video broadcast (DVB) system, a long-term evolution (LTE) system, a long-term evolution advanced (LTE-A) system, or a fifth-generation (5G) system, but is not limited to these.

[0052] The wireless communication system 10 may support time-division duplex (TDD) mode, frequency-division duplex (FDD) mode, TDD-FDD joint operation mode, non-terrestrial network (NTN) mode, or license-assisted access (LAA) mode. That is, the controller 12, network 14, and communication device 16 may communicate via an FDD carrier, TDD carrier, license carrier (license serving cell), and / or unlicensed carrier (unlicensed serving cell). The wireless communication system 10 may also support carrier aggregation (CA). That is, the controller 12, network 14, and communication device 16 may communicate via multiple serving carriers (e.g., multiple channels (CH)) including a primary carrier (e.g., primary CH) and one or more secondary carriers (e.g., secondary CH).

[0053] In Figure 1, the controller 12, network 14, and communication device 16 are used simply to illustrate the structure of the wireless communication system 10. In reality, the controller 12 is a specialized networking device or application that functions as a central command center for managing and optimizing the wireless communication system 10. Designed to handle the network 14 and simplify the management of the wireless communication system 10, the controller 12 ensures consistent performance, security, and reliability throughout the wireless communication system 10. The controller 12 enables network administrators to deploy, configure, and maintain the wireless communication system 10 by managing and monitoring the network 14.

[0054] In one embodiment, network 14 may be a WLAN including at least one access point (AP) and / or at least one hotspot. In one embodiment, network 14 may be a universal terrestrial radio access network (UTRAN) including at least one node B (NB) in a universal mobile telecommunications system (UMTS). In one embodiment, network 14 may be an evolved UTRAN (E-UTRAN) including at least one evolved NB (eNB) and / or at least one relay node in a long-term evolution (LTE) system, an LTE-Advanced (LTE-A) system, or an evolution of an LTE-A system. In one embodiment, network 14 may be a next-generation radio access network (NG-RAN) including at least one next-generation node B (gNB) and / or at least one fifth-generation (5G) base station (BS). In one embodiment, the gNB or 5G BS of network 14 may include an NTN gateway and an NTN payload. In one embodiment, the gNB or 5G BS of network 14 may be a transmit / receive point (TRP). In one embodiment, the network 14 may be any BS that conforms to a specific communication standard for communicating with the controller 12 and / or the communication device 16.

[0055] The communication device 16 may be a station (STA) (e.g., a non-AP STA), user equipment (UE), small earth station (VSAT), low-cost equipment (e.g., machine-type communication (MTC) equipment), device-to-device (D2D) communication equipment, narrowband Internet of Things (IoT) (NB-IoT), mobile phones, laptops, tablet computers, e-books, portable computer systems, household appliances, vehicles, ships, airplanes, or a combination thereof. Furthermore, the network 14 and the communication device 16 can be considered as a transmitter or receiver based on direction (i.e., transmission direction). For example, in the case of an uplink (UL), the communication device 16 is the transmitter and the network 14 is the receiver; in the case of a downlink (DL), the network 14 is the transmitter and the communication device 16 is the receiver. It should be noted that an STA with AP functionality enabled can operate as an AP.

[0056] Figure 2 is a schematic diagram of a communication device 20 according to one embodiment of the present disclosure. The communication device 20 may be, but is not limited to, the controller 12, network 14, or communication device 16 in Figure 1. The communication device 20 may include at least one processing circuit 200, such as a microprocessor or application-specific integrated circuit (ASIC), at least one storage device 210, and at least one communication interface device 220. The at least one storage device 210 may be any data storage device capable of storing program code 214 accessed and executed by the at least one processing circuit 200. Examples of the at least one storage device 210 include, but are not limited to, a subscriber identification module (SIM), read-only memory (ROM), flash memory, random access memory (RAM), compact disc read-only memory (CD-ROM), digital versatile disc ROM (DVD-ROM), Blu-ray disc ROM (BD-ROM), magnetic tape, hard disk, optical data storage device, non-volatile storage device, and non-temporary computer-readable media (e.g., tangible media). At least one communication interface device 220 is preferably at least one transceiver and is used to transmit and receive signals (e.g., data, messages and / or packets) based on the processing results of at least one processing circuit 200.

[0057] Figure 3 is a flowchart of process 30 according to one embodiment of the present disclosure. Process 30 may be used by a communication device (e.g., communication device 16 in Figure 1 or communication device 20 in Figure 2) to process resources for communication. Process 30 may be compiled into program code 214 and includes the following steps 300 to 310.

[0058] Step 300 is to begin.

[0059] In step 302, first information associated with a specific mode is received from the network.

[0060] In step 304, if it is determined to operate in a specific mode, a first message is sent to the network.

[0061] In step 306, after sending the first message, the system receives a first signaling signal from the network via the primary channel indicating the first channel.

[0062] In step 308, after receiving the first signaling, the first channel is applied to communicate with the network.

[0063] Step 310 is the end.

[0064] Process 30 allows the communication device to receive first information associated with a specific mode from the network (e.g., via the primary CH). The network may be, but is not limited to, network 14 in Figure 1 or communication device 20 in Figure 2. If the communication device decides to operate in a specific mode (e.g., enable / enter / support a specific mode), it sends a first message to the network (e.g., via the primary CH). After sending the first message, the communication device receives a first signaling from the network via the primary CH that directs it to the first CH (e.g., resources (units) of the first CH). After receiving the first signaling, the communication device applies the first CH to communicate with the network (e.g., based on the first signaling) (e.g., starts operation). That is, if the communication device decides to operate in a specific mode, the network directs the communication device to a new CH, such as the first CH. The communication device performs communication with the network by applying the first CH. Thus, channel utilization efficiency can be improved.

[0065] The implementation of process 30 is not limited to the above description. The following embodiments may be applied to implement process 30.

[0066] In one embodiment, the specific mode is a dynamic subchannel / subband operation (DSO) mode. In one embodiment, when the communication device activates the specific mode, the communication device transmits a second signaling to the network via the primary channel instructing the activation of the specific mode. The network then transmits first information to the communication device in response to the second signaling.

[0067] In one embodiment, when a controller (for example, controller 12 in Figure 1 or communication device 20 in Figure 2) activates a specific mode, it transmits a second signaling signal to the network via the primary channel. The network then responds to the second signaling signal by transmitting first information to the communication device.

[0068] In one embodiment, when the network activates a specific mode, it transmits first information to the communication device. In this case, the network does not receive a second signaling from the communication device or controller, but directly notifies the communication device of the first information.

[0069] In one embodiment, the first information includes at least one of at least one location of at least one non-primary channel and at least one bandwidth of at least one non-primary channel. In one embodiment, at least one non-primary channel is, but is not limited to, at least one polling-based multi-station DSO (PMD) channel. In one embodiment, the first information includes at least one of a first time (e.g., a timestamp) for entering a particular mode, a second time (e.g., a timestamp) for sending a first message, and a third time (e.g., a timestamp) for sending data for channel assignment (e.g., a reassignment message). In one embodiment, the first information is received after the network has acquired the primary channel and the first channel over a period of time (e.g., a transmit opportunity (TXOP)).

[0070] In one embodiment, the communication device receives second information associated with a particular mode from the network (e.g., via the primary channel). In one embodiment, the second information includes at least one of the start time of the particular mode and the duration of the particular mode. In one embodiment, the second information is associated with at least one of the initial control frame (ICF) (e.g., buffer status report polling (BSRP), multi-user transmission request (MU-RTS)) and immediate response (IR). In one embodiment, the second information is included in the first information or included in the first signaling.

[0071] In one embodiment, the communication device determines whether or not to operate in a specific mode (for example, to enable a specific mode) based on first information. In another embodiment, the communication device determines whether or not to operate in a specific mode based on data characteristics (for example, priority).

[0072] In one embodiment, if the communication device decides to disable operation in a particular mode, it ignores (e.g., drops) the first information (e.g., until it receives the next first information associated with the next particular mode). For the next first information, examples of the first information can be seen, but for brevity, they are not described here. In one embodiment, the next particular mode starts after the previous particular mode.

[0073] In one embodiment, if the communication device decides to disable operation in a particular mode, it performs at least one of the following actions: ignoring the first information (e.g., disabling decoding) until it receives the next first information associated with the next particular mode; disabling the transmission of the first message to the network via the primary CH; and applying (or continuing to apply) the primary CH to communicate with the network.

[0074] In one embodiment, when a communication device decides to operate in a specific mode (e.g., enable a specific mode), it performs at least one of the following: switching to the specific mode; performing a measurement on at least one non-primary channel to generate (e.g., acquire) measurement results; and generating a first message containing the measurement results. For example, a first communication device may perform a measurement on at least one first non-primary channel, and a second communication device may perform a measurement on at least one second non-primary channel, and the at least one first non-primary channel and the at least one second non-primary channel may be partially different.

[0075] In one embodiment, the first channel is a non-primary channel (e.g., a PMD channel). In one embodiment, the first channel is included in at least one non-primary channel. In one embodiment, the first channel is determined based on a first message (e.g., by the network). In one embodiment, the first channel is determined based on measurement results (e.g., by the network).

[0076] In one embodiment, the first signaling is initiated by the network and disclosed / triggered by the communication device based on a first action message transmitted by the communication device, or initiated / triggered by the controller based on a second action message transmitted by the controller. In one embodiment, the first signaling is associated with at least one of the ICF and IR.

[0077] In one embodiment, the communication device switches from the primary channel to the first channel based on a first signaling. In one embodiment, after switching from the primary channel to the first channel, the communication device applies the first channel to communicate with the network. In one embodiment, step 308 includes sending a second message to the network via the first channel (e.g., in response to the first signaling). In one embodiment, the communication device switches back to the primary channel based on a time constraint (e.g., at the end of a particular mode or timer). In one embodiment, the communication device may switch back to the primary channel after receiving instructions from the network.

[0078] In one embodiment, the primary channel and the first channel are acquired by the network over a set period of time (e.g., a transmission opportunity (TXOP)). In one embodiment, at least one of the primary channel (e.g., a resource in the primary channel) and the first channel (e.g., a resource in the first channel) is allocated to the communication device by the network in a time-sparing manner, for example, the primary channel and the non-primary channel (e.g., the first channel) are not allocated to the communication device simultaneously. In one embodiment, the bandwidth of the primary channel is one of 20 megahertz (MHz), 40 MHz, 80 MHz, and 160 MHz. In one embodiment, the bandwidth of the first channel is one of 20 MHz, 40 MHz, 80 MHz, 160 MHz, and 320 MHz. The bandwidth of the resource in the first channel is one of 20 MHz, 40 MHz, 80 MHz, and 160 MHz.

[0079] In one embodiment, the primary channel and the first channel are associated with one network (e.g., served by one access point). In one embodiment, the primary channel and the first channel may be within a single frequency band (e.g., 2.4 GHz, 5 GHz, 6 GHz, 42 GHz, etc.).

[0080] In another embodiment, the primary channel and the first channel may be in different frequency bands. For example, the primary channel may be in the 5 GHz band and the first channel in the 2.4 GHz band.

[0081] Figure 4 is a flowchart of process 40 according to one embodiment of the present disclosure. Process 40 may be used for a network (e.g., network 14 in Figure 1 or communication device 20 in Figure 2) that communicates with at least one communication device (e.g., communication device 16 in Figure 1 or communication device 20 in Figure 2) to process resources for communication. Process 40 may be compiled into program code 214 and includes the following steps 400 to 408.

[0082] Step 400 is to begin.

[0083] In step 402, the first information associated with a specific mode is transmitted to the communication device.

[0084] In step 404, after receiving the first message from the communication device, the first signaling indicating the first channel is transmitted to the communication device via the primary channel.

[0085] In step 406, after transmitting the first signaling, the first channel is applied to communicate with the communication device.

[0086] Step 408 is the end.

[0087] Process 40 causes the network to transmit first information associated with a specific mode to a communication device (e.g., via a primary channel). The communication device may be, but is not limited to, communication device 16 in Figure 1 or communication device 20 in Figure 2. The network then receives a first message from the communication device (e.g., associated with the activation of a specific mode) and transmits a first signaling signal to the communication device via the primary channel, indicating the first channel. After transmitting the first signaling signal, the network applies the first channel to communicate with the communication device. That is, the network communicates with the communication device by indicating a new channel, such as the first channel, and applying the first channel. Thus, channel utilization efficiency can be improved.

[0088] The implementation of process 40 is not limited to the above description. Examples of process 30 may also be applied to process 40, and for brevity, they are not described here. Furthermore, the following examples may be applied to implement process 40.

[0089] In one embodiment, when the network activates a specific mode or receives a second signaling, it performs at least one of the following actions: switching to a specific mode and generating first information. Process 30 can be referenced for the first information and the second signaling, but for brevity, it is not described here.

[0090] In one embodiment, after receiving a first message from a communication device, the network performs at least one of the following operations: assigning a first channel to the communication device (for example, based on the first message or measurement results), and generating a first signaling that points to the first channel. For measurement results, refer to process 30, which will not be described here for brevity.

[0091] In other words, the network (e.g., AP) determines and invites at least one specific communication device (e.g., STA) to participate / operate in a specific mode (e.g., switch to the corresponding instructed channel).

[0092] Figure 5 is a sequence diagram of process 50 according to one embodiment of the present disclosure. Process 50 includes a communication device CM and a network NW. In one embodiment, the network NW activates a specific mode. In one embodiment, the communication device CM or controller (not shown in Figure 5) activates the specific mode and sends a second signaling to the network NW instructing the activation of the specific mode. The above two embodiments are not shown in Figure 5 for brevity. In step 500, the network NW activates / enables the specific mode (e.g., switches to the specific mode) in response to, for example, activating the specific mode or receiving the second signaling. In step 502, the network NW generates first information associated with the specific mode. In step 504, the network NW sends the first information to the communication device CM.

[0093] Refer to Figure 6 in combination with Figure 5. Figure 6 is a flowchart of process 60 according to one embodiment of the present disclosure, showing the operation of the communication device CM after step 504 in Figure 5. In step 602, the communication device CM receives first information from the network NW. Step 602 corresponds to step 504 in Figure 5. In step 604, the communication device CM decides whether or not to operate in a specific mode. If the communication device CM decides to operate in a specific mode, it executes steps 610 to 616; if it decides to disable operation in a specific mode, it executes steps 606 to 608.

[0094] In step 606, the communication device CM continues to apply the primary channel to communicate with the network NW. In step 608, the communication device CM ignores the first information. In step 610, the communication device CM switches to a specific mode. In step 612, the communication device CM performs a measurement on at least one non-primary channel to generate a measurement result. In step 614, the communication device CM generates a first message containing the measurement result. In step 616, the communication device CM sends the first message to the network NW.

[0095] In the following diagram, blocks within a channel represent communication operations performed through the channel. For example, resources (e.g., resource units within a channel) are contained within the area indicated by the blocks. Data transmission and / or reception are performed through the resources contained within the channel. Resources are directed / allocated by the network (e.g., for scheduled transmissions). Resources can be acquired / accessed by communication devices through contention-based channel access using a distributed coordination function (DCF).

[0096] Refer to Figure 7 in combination with Figure 6. Figure 7 is a schematic diagram of a primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. In Figure 7, the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 correspond to the time axis T and may be a primary channel and at least one non-primary channel in Figure 6. Block 700 in the primary channel P_CH, block 702 in the non-primary channels NP_CH1 to NP_CH4, and block 704 in the primary channel P_CH correspond to steps 602, 612, and 616 in Figure 6, respectively. In detail, block 700 represents the communication device receiving first information associated with a particular mode from the network. Block 702 represents the communication device performing a measurement on at least one of the non-primary channels NP_CH1 to NP_CH4 to generate a measurement result when it decides to operate in a particular mode. Block 704 represents the communication device sending a first message to the network.

[0097] Refer to Figure 8 in combination with Figure 6. Figure 8 is a sequence diagram of process 80 according to one embodiment of the present disclosure, showing the operation of the communication device CM and network NW after step 616 in Figure 6. In step 800, the communication device CM sends a first message to the network NW. Step 800 corresponds to step 616 in Figure 6. In step 802, the network NW assigns a first channel (e.g., a non-primary channel) to the communication device CM based on the first message. In step 804, the network NW generates a first signaling indicating the first channel. In step 806, the network NW sends the first signaling to the communication device CM. In step 808, the communication device CM switches from the primary channel to the first channel based on the first signaling. For example, the communication device CM sends a message (e.g., an initial control response (ICR), an immediate response (IR)) corresponding to the first signaling (e.g., in response) via the first channel (e.g., a resource contained in the first channel). In step 810, the communication device CM applies the first channel to communicate with the network NW.

[0098] Refer to Figure 9A in combination with Figure 8. Figure 9A is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. While Figure 8 shows an embodiment of one communication device, Figure 9A shows an embodiment of multiple communication devices CM1 to CM6. Communication devices CM1 to CM4 are determined to operate in a specific mode, and communication devices CM5 to CM6 are determined to disable operation in a specific mode. Each of communication devices CM1 to CM4 may be a communication device CM in Figure 8.

[0099] In Figure 9A, the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 correspond to the time axis T. The primary channel P_CH may also be the primary channel in Figure 8. Each of the non-primary channels NP_CH1 to NP_CH4 may also be the first channel in Figure 8. Blocks 900_1, 900_2, 900_3, and 900_4 in the primary channel P_CH represent communication operations performed by communication devices CM1 to CM4, respectively. For example, blocks 900_1, 900_2, 900_3, and 900_4 correspond to step 800 in Figure 8. Communication devices CM1 to CM4 each send their individual first messages to the network NW. The first message corresponding to block 900_2 may include the measurement results of NP_CH1, NP_CH2, and NP_CH4 obtained by communication device CM2. Block 902 in the primary channel P_CH corresponds to step 806 in Figure 8. Communication devices CM1 to CM4 receive a first signaling signal from the network NW. The first signaling signal directs communication device CM1 to the non-primary channel NP_CH1, communication device CM2 to the non-primary channel NP_CH2, communication device CM3 to the non-primary channel NP_CH3, and communication device CM4 to the non-primary channel NP_CH4. Primary channels and primary bands may be used interchangeably. Non-primary channels may be subbands.

[0100] After receiving the first signal from the network NW, communication devices CM1 to CM4 each switch from the primary channel P_CH to the non-primary channels NP_CH1 to NP_CH4 (for example, at the same time).

[0101] In Figure 9A, blocks 904_1 in non-primary channel NP_CH1, 904_2 in non-primary channel NP_CH2, 904_3 in non-primary channel NP_CH3, and 904_4 in non-primary channel NP_CH4 represent communication operations performed by communication devices CM1 to CM4, respectively. For example, blocks 904_1, 904_2, 904_3, and 904_4 correspond to step 810 in Figure 8. Communication devices CM1 to CM4 each apply non-primary channels NP_CH1 to NP_CH4 to communicate with the network NW. Communication devices CM1 to CM4 each send their individual messages (e.g., corresponding to the first signaling) to the network NW (e.g., at the same time). Individual messages sent by a communication device (e.g., CM1) may be transmitted via resources contained in the area indicated by a block (e.g., 904_1).

[0102] Furthermore, communication devices CM5 to CM6, which disable operation in a specific mode, continue to apply the primary channel P_CH to communicate with the network NW (sequentially and alternately) via contention-based channel access. For example, block 908_5 in the primary channel P_CH indicates that communication device CM5 is performing communication operations with the network NW, and block 908_6 in the primary channel P_CH indicates that communication device CM6 is performing communication operations with the network NW.

[0103] Refer to Figure 9B in combination with Figure 8. Figure 9B is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. While Figure 8 shows an embodiment of one communication device, Figure 9B shows an embodiment of multiple communication devices CM1 to CM6. Communication devices CM1 to CM4 are determined to operate in a specific mode, and communication devices CM5 to CM6 are determined to disable operation in a specific mode. Each of communication devices CM1 to CM4 may be a communication device CM in Figure 8.

[0104] In Figure 9B, the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 correspond to the time axis T. The primary channel P_CH may also be the primary channel in Figure 8. Each of the non-primary channels NP_CH1 to NP_CH4 may also be the first channel in Figure 8. Blocks 900_1, 900_2, 900_3, and 900_4 in the primary channel P_CH represent communication operations performed by communication devices CM1 to CM4, respectively. For example, blocks 900_1, 900_2, 900_3, and 900_4 correspond to step 800 in Figure 8. Communication devices CM1 to CM4 each transmit their individual first messages to the network NW. The first message corresponding to block 900_2 may include measurement results for non-primary channels NP_CH1, NP_CH2, and NP_CH4 obtained by communication device CM2. Block 902 in the primary channel P_CH corresponds to step 806 in Figure 8. Communication devices CM1 to CM4 receive first signaling from the network NW. The first signaling directs communication device CM1 to non-primary channel NP_CH1, communication device CM2 to non-primary channel NP_CH2, communication device CM3 to non-primary channel NP_CH3, and communication device CM4 to non-primary channel NP_CH4. Primary channels and primary bands may be used interchangeably. Non-primary channels may be subbands.

[0105] After receiving the first signal from the network NW, communication devices CM1 to CM4 each switch from the primary channel P_CH to the non-primary channels NP_CH1 to NP_CH4 (for example, at the same time).

[0106] In Figure 9B, blocks 906_1 in non-primary channel NP_CH1, 906_2 in non-primary channel NP_CH2, 906_3 in non-primary channel NP_CH3, and 906_4 in non-primary channel NP_CH4 represent communication operations performed by communication devices CM1 to CM4, respectively. For example, blocks 906_1, 906_2, 906_3, and 906_4 correspond to step 810 in Figure 8. Communication devices CM1 to CM4 each apply non-primary channels NP_CH1 to NP_CH4 to communicate with the network NW. Before sending or receiving messages / data over the channel, the communication device may perform carrier sensing on the channel (for example, at the same time).

[0107] When a channel is idle, unoccupied, or uninterrupted, the communication device (e.g., communication device CM2) accesses the channel using contention-based channel access (e.g., DCF, Hybrid Coordination Function (HCF), Enhanced Distributed Channel Access (EDCA)) to send or receive messages / data (e.g., sending individual messages corresponding to the first signaling).

[0108] If a channel is busy, occupied, or interfered with (e.g., hatched blocks in non-primary channels NP_CH1, NP_CH3, and NP_CH4), the communication devices (e.g., communication devices CM1, CM3, and CM4) postpone their transmission or reception. The communication devices then access the channel using contention-based channel access and perform message / data transmission or reception (e.g., transmission of individual messages corresponding to the first signaling). Individual messages transmitted by a communication device (e.g., communication device CM1) may be transmitted via resources contained in the area indicated by a block (e.g., block 906_1). (Data) transmission and / or reception may also be performed corresponding to a block (e.g., 906_2), but should be noted that these are not shown in this diagram for brevity.

[0109] Furthermore, communication devices CM5 to CM6, which disable operation in a specific mode, continue to apply the primary channel P_CH to communicate with the network NW (sequentially and alternately) via contention-based channel access. For example, block 908_5 in the primary channel P_CH indicates that communication device CM5 is performing communication operations with the network NW, and block 908_6 in the primary channel P_CH indicates that communication device CM6 is performing communication operations with the network NW.

[0110] Refer to Figure 9C in combination with Figure 8. Figure 9C is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. While Figure 8 shows an embodiment of one communication device, Figure 9C shows an embodiment of multiple communication devices CM1 to CM6. Communication devices CM1 to CM4 are determined to operate in a specific mode, and communication devices CM5 to CM6 are determined to disable operation in a specific mode. Each of communication devices CM1 to CM4 may be a communication device CM in Figure 8.

[0111] In Figure 9C, the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 correspond to the time axis T. The primary channel P_CH may also be the primary channel in Figure 8. Each of the non-primary channels NP_CH1 to NP_CH4 may also be the first channel in Figure 8. Blocks 900_1, 900_2, 900_3, and 900_4 in the primary channel P_CH represent communication operations performed by communication devices CM1 to CM4, respectively. For example, blocks 900_1, 900_2, 900_3, and 900_4 correspond to step 800 in Figure 8. Communication devices CM1 to CM4 each send their individual first messages to the network NW. The first message corresponding to block 900_2 may include the measurement results of NP_CH1, NP_CH2, and NP_CH4 obtained by communication device CM2. Block 902 in the primary channel P_CH corresponds to step 806 in Figure 8. Communication devices CM1 to CM4 receive a first signaling signal from the network NW. The first signaling signal directs communication device CM1 to the non-primary channel NP_CH1, communication device CM2 to the non-primary channel NP_CH2, communication device CM3 to the non-primary channel NP_CH3, and communication device CM4 to the non-primary channel NP_CH4. Primary channels and primary bands may be used interchangeably. Non-primary channels may be subbands.

[0112] After receiving the first signal from the network NW, communication devices CM1 to CM4 each switch from the primary channel P_CH to the non-primary channels NP_CH1 to NP_CH4 (for example, at the same time).

[0113] In Figure 9C, blocks 908_1 in non-primary channel NP_CH1, 908_2 in non-primary channel NP_CH2, 908_3 in non-primary channel NP_CH3, and 908_4 in non-primary channel NP_CH4 represent the communication operations performed by communication devices CM1 to CM4, respectively. For example, blocks 908_1, 908_2, 908_3, and 908_4 correspond to step 810 in Figure 8. Communication devices CM1 to CM4 each apply non-primary channels NP_CH1 to NP_CH4 to communicate with the network NW. Communication devices CM1 to CM4 each send their individual messages (e.g., corresponding to the first signaling) to the network NW (e.g., at the same time) (e.g., within a time interval where there is no carrier sensing or contention-based channel access). Individual messages transmitted by a communication device (e.g., communication device CM1) may be transmitted via resources contained in the region indicated by a block (e.g., block 908_1). Resources may be allocated by the network NW over a time interval.

[0114] After a time interval, blocks 910_1 in non-primary channel NP_CH1, 910_2 in non-primary channel NP_CH2, 910_3 in non-primary channel NP_CH3, and 910_4 in non-primary channel NP_CH4 represent the communication operations performed by communication devices CM1 to CM4, respectively. For example, blocks 910_1, 910_2, 910_3, and 910_4 also correspond to step 810 in Figure 8. Communication devices CM1 to CM4 each apply non-primary channels NP_CH1 to NP_CH4 to communicate with the network NW. Before sending or receiving messages / data over the channels, the communication devices may perform carrier sensing on the channels (for example, at the same time).

[0115] When a channel is idle, unoccupied, or uninterrupted, the communication device (e.g., communication device CM2) accesses the channel using contention-based channel access (e.g., DCF, HCF, EDCA) to send or receive messages / data. Message / data transmission may exclude individual messages corresponding to the first signaling.

[0116] If a channel is busy, occupied, or interfered with (e.g., hatched blocks in non-primary channels NP_CH1, NP_CH3, and NP_CH4), the communication devices (e.g., communication devices CM1, CM3, and CM4) postpone their transmission or reception. The communication devices then access the channel using contention-based channel access and perform message / data transmission or reception. Message / data transmission may exclude individual messages corresponding to the first signaling. (Data) transmission and / or reception may be performed in accordance with blocks (e.g., block 906_2), but should be noted that these are not shown in this diagram for brevity.

[0117] Furthermore, communication devices CM5-CM6, which disable operation in specific modes, continue to apply the primary channel P_CH to communicate with the network NW (sequentially and alternately) via contention-based channel access. For example, block 908_5 in primary channel P_CH represents communication device CM5 performing communication operations with network NW, and block 908_6 in primary channel P_CH represents communication device CM6 performing communication operations with network NW.

[0118] Figure 10 is a flowchart of process 100 according to one embodiment of the present disclosure. Process 100 may be used by a communication device (e.g., communication device 16 in Figure 1 or communication device 20 in Figure 2) to process resources for communication. Process 100 may be compiled into program code 214 and includes the following steps 1000 to 1006.

[0119] Step 1000 is to begin.

[0120] Step 1002 involves performing at least one communication operation with the network via the first channel.

[0121] In step 1004, the second channel operates based on at least one of the following: instructions, time constraints, and interference conditions.

[0122] Step 1006 is the end.

[0123] Process 100 enables the communication device to perform at least one communication operation with the network via the first channel. The network may be, but is not limited to, network 14 in Figure 1 or communication device 20 in Figure 2. The communication device then operates on the second channel (e.g., starts operation) based on at least one of the following: instructions, time constraints, and interference conditions. That is, the communication device dynamically allocates resources (units) of the channel (e.g., CH) to communicate with the network. Thus, channel utilization efficiency can be improved.

[0124] The implementation of process 100 is not limited to the above description. The following embodiments may be applied to implement process 100.

[0125] In one embodiment, the communication device supports (or enables) operation on an NPCA CH. In one embodiment, the communication device enables operation on at least one of the NPCA CHs.

[0126] In one embodiment, the candidate channels / (sub)bands (and corresponding bandwidths) of the communication device may be dynamically updated (e.g., expanded or reduced). The communication device may support and enable dynamic bandwidth expansion (DBE).

[0127] In one embodiment, if the available candidate channels (triggered by) or the network bandwidth (BW) (e.g., the BW on which the network operates) is dynamically updated (e.g., expanded, reduced) to the communication device, the communication device operates on the second channel. In one embodiment, if the network BW is updated, the communication device operates on the second channel. In one embodiment, if the network updates the BW, the communication device receives instructions (e.g., related to the updated BW).

[0128] In one embodiment, the instruction is determined (e.g., generated) by the communication device. In one embodiment, the communication device transmits the instruction to the network via the first channel. In one embodiment, after the communication device receives an allocation query message from the network, the instruction is transmitted to the network. For example, this instruction is transmitted to the network via a resource unit (e.g., 20 MHz) included in the first channel (e.g., 80 MHz). In one embodiment, the instruction is determined (e.g., generated) by the network (e.g., a DBE-enabled AP). In one embodiment, the communication device receives the instruction from the network via the first channel. In one embodiment, the network acquires at least one non-primary channel access (NPCA) channel.

[0129] In one embodiment, the communication device transmits an allocation request to the network (for example, via the first channel). In one embodiment, after the communication device transmits the allocation request, an allocation query message is received (for example, by the communication device via the first channel).

[0130] In one embodiment, the instruction specifies at least one of data information and role intent. In one embodiment, the data information specifies at least one of the amount of data (to be transmitted) and the data traffic type (e.g., priority). In one embodiment, the role intent specifies one of CH reduction, CH reservation, and CH expansion. A role intent that specifies CH reduction is equivalent to no instruction / transmission of CH reservation or CH expansion. A larger data amount and / or a higher priority traffic type is equivalent to the purpose of CH expansion. A smaller data amount and / or a lower priority traffic type is equivalent to the purpose of CH reduction.

[0131] In one embodiment, the communication device determines a role intent in response to receiving an assignment inquiry message. In one embodiment, the step of determining a role intent includes at least one of the following actions: determining whether or not a CH expansion is required; and determining whether or not to donate (enable) the first CH. In one embodiment, the step of determining a role intent includes at least one of the following actions: determining a role intent to instruct a CH reduction if the communication device does not require a CH expansion and / or is able to donate the first CH; determining a role intent to instruct a CH reservation if the communication device does not require a CH expansion and / or is not able to donate the first CH; and determining a role intent to instruct a CH expansion if the communication device requires a CH expansion. For example, if the communication device is operating (and determined to be) in a power-saving mode, the communication device does not require a CH expansion.

[0132] In one embodiment, the communication device receives a first assignment message from the network via the first channel based on an instruction. In one embodiment, the first assignment message directs to the second channel. In one embodiment, the first assignment message directs to the second channel for a single communication device (e.g., a communication device). In another embodiment, the first assignment message directs to the second channel for multiple communication devices (e.g., a communication device and another communication device).

[0133] In one embodiment, the second CH is determined based on the instructions.

[0134] In one embodiment, the second channel is determined based on measurement results obtained by the communication device. In one embodiment, the second channel is determined by the network. In one embodiment, the measurement results are included in an instruction or a preceding message. In one embodiment, the preceding message is transmitted to the network via the primary channel. In one embodiment, the measurement results include at least one of the first measurement results of at least one secondary channel (SCH) and the second measurement results of at least one NPCA channel. In one embodiment, the first and second measurement results are transmitted via the same message or different messages. In one embodiment, if the bandwidth (BW) of candidate channels or the network available to the communication device (e.g., the BW on which the network operates) is dynamically updated (e.g., expanded, reduced), or if the communication device supports (enables) operation on an NPCA channel or prioritizes channel reduction, the communication device performs at least one measurement on at least one NPCA channel to obtain the second measurement result. The second channel may include at least one of at least one SCH and at least one NPCA channel.

[0135] In one embodiment, if the instruction indicates a channel reduction, the second channel is one of the primary channel, the first non-primary channel (e.g., a subband), and the second non-primary channel. In one embodiment, the first non-primary channel is included in the first channel and has a narrower (or not narrower) bandwidth than the first channel. In one embodiment, the second non-primary channel is included in the first channel and has a narrower bandwidth than the first channel. In one embodiment, the first or second non-primary channel is indicated by a second assignment message received from the network via the first channel. In one embodiment, the communication device determines the first or second non-primary channel. In one embodiment, the second non-primary channel is one of at least one NPCA channel. In one embodiment, if the communication device decides to reduce the channel (e.g., prioritize), the communication device may determine that the second channel is the primary channel or the first non-primary channel (e.g., regardless of whether an explicit instruction is received). For example, if the communication device decides to reduce the channel (e.g., prioritize), it determines the first non-primary channel. In one embodiment, if the communication device indicates a channel reduction and / or a lower traffic type, the instruction transmitted by the communication device may (further) indicate a target channel (e.g., a narrower channel included in the primary channel or first channel). The received instruction allows the network to understand that the communication device may / plans to switch to the target channel.

[0136] In one embodiment, when CH expansion is enabled and / or when an instruction indicates CH expansion, the second CH is either the first CH or includes a third non-primary CH. In one embodiment, CH expansion is triggered by the network. In one embodiment, the second CH has a wider (or not narrower) bandwidth than the first CH. In one embodiment, the third non-primary CH is either the entire available CH including the first CH or an additional available CH other than the first CH.

[0137] In one embodiment, if the instruction indicates a channel reservation, the second channel is the first channel. In one embodiment, if the communication device determines a channel reservation (e.g., priority), the communication device may determine that the second channel is the first channel (regardless of whether an explicit instruction is received, for example).

[0138] In one embodiment, the second CH includes at least one of a primary CH, a specific non-primary CH (e.g., not an NPCA CH), and a specific NPCA CH. In one embodiment, the first CH includes at least one of a primary CH, a specific non-primary CH (e.g., not an NPCA CH), and a specific NPCA CH.

[0139] In one embodiment, if the first channel is a PCH, the second channel is one of the following: SCH, NPCA PCH, and NPCA SCH, dedicated to the communication device. In one embodiment, if the first channel is an SCH, the second channel is one of the following: PCH, NPCA PCH, and NPCA SCH. In one embodiment, if the first channel is an NPCA PCH, the second channel is one of the following: PCH, SCH, and NPCA SCH. In one embodiment, if the first channel is an NPCA SCH, the second channel is one of the following: PCH, SCH, and NPCA PCH.

[0140] In one embodiment, the time constraint is determined by the communication device or indicated by the network to at least one communication device. In one embodiment, at least one(s) of the communication devices operate in a specific mode. In one embodiment, the time constraint is received from the network via the first channel. In one embodiment, the time constraint is indicated by an assignment message received from the network. In one embodiment, the time constraint indicates at least one of a time and a timer. For example, at least one(s) of the communication devices begin operating on the corresponding channel at a given time (e.g., switch). In one embodiment, the communication device switches to the primary channel based on the time constraint (e.g., at the end time of a specific mode or timer).

[0141] In one embodiment, the first CH is the fourth non-primary CH. In another embodiment, the first CH is the NPCA CH. In yet another embodiment, the first CH is not the NPCA CH.

[0142] In one embodiment, the primary channel, the first channel, and the second channel are acquired by the network over a certain period (e.g., TXOP). In one embodiment, at least one of the primary channel (resources), the first channel (resources), and the second channel (resources) is allocated to the communication device by the network in a time-sparing manner. For example, the primary channel and the non-primary channels (e.g., the first channel and the second channel) are not allocated to the communication device at the same time.

[0143] In one embodiment, the communication device switches from the primary channel to the first channel to communicate with the network. In one embodiment, the communication device receives a third assignment message from the network via the primary channel indicating the first channel. In one embodiment, after switching to (or operating on) the first channel, the communication device performs at least one communication operation with the network.

[0144] In one embodiment, the communication device operates on the second channel when operating in a specific mode. In one embodiment, the specific mode is the DSO mode.

[0145] In one embodiment, step 1004 includes switching from the first channel to the second channel in order to communicate with the network. In one embodiment, the step of switching from the first channel to the second channel includes at least one of the following: determining whether the second channel is the primary channel and determining whether the second channel is the first channel. In one embodiment, the step of switching from the first channel to the second channel includes at least one of the following: if the second channel is neither the primary channel nor the first channel, switching from the first channel to the second channel; if the second channel is the first channel, continuing to apply the first channel in order to communicate with the network; and if the second channel is the primary channel, switching from the first channel to the primary channel.

[0146] In one embodiment, the bandwidth of the primary channel is one of 20 megahertz (MHz), 40 MHz, 80 MHz, and 160 MHz. In one embodiment, the bandwidth of the first channel is one of 20 MHz, 40 MHz, 80 MHz, 160 MHz, and 320 MHz. In one embodiment, the bandwidth of the second channel is one of 20 MHz, 40 MHz, 80 MHz, 160 MHz, and 320 MHz.

[0147] It should be noted that process 100 may be a subsequence operation of process 30. Therefore, embodiments of process 30 may be applied to process 100, and for the sake of brevity, they will not be described here.

[0148] Figure 11 is a flowchart of process 110 according to one embodiment of the present disclosure. Process 110 may be used in a network (e.g., network 14 in Figure 1 or communication device 20 in Figure 2) that communicates with at least one communication device (e.g., communication device 16 in Figure 1 or communication device 20 in Figure 2) to process resources for communication. Process 110 may be compiled into program code 214 and includes the following steps 1100 to 1106.

[0149] Step 1100 is to begin.

[0150] In step 1102, at least one communication operation is performed with at least one of the communication devices via the first channel.

[0151] In step 1104, the second channel operates based on at least one of the following: instructions, time constraints, and interference conditions.

[0152] Step 1106 is the end.

[0153] Process 110 causes the network to perform at least one communication operation with at least one communication device via the first CH. The communication device may be, but is not limited to, communication device 16 in Figure 1 or communication device 20 in Figure 2. The network then operates on the second CH (e.g., starts operation) based on at least one of instructions, time constraints, and interference conditions. That is, the network dynamically allocates resources (units) of the CH (e.g., CH resources) to communicate with the communication device. Thus, channel utilization efficiency can be improved.

[0154] The implementation of process 110 is not limited to the above description. Embodiments of process 100 may also be applied to process 110 and are not described here for brevity. Furthermore, the following embodiments may be applied to implement process 110.

[0155] In one embodiment, the candidate (sub)bands (and corresponding bandwidths) of the communication device may be dynamically updated (e.g., expanded or reduced). The network may support and enable DBE.

[0156] In one embodiment, the network acquires at least one NPCA CH. In one embodiment, after receiving an instruction from a communication device, the network performs at least one of the following operations: assigning (or reassigning) the second CH to the communication device (for example, based on at least one of the instruction, time constraints, and interference conditions); and generating a first assignment message that indicates the second CH. Process 100 can be referenced for the instruction, the second CH, and the first assignment message, but for brevity it is not described here.

[0157] It should be noted that process 110 may be a subsequence operation of process 40. Therefore, embodiments of process 40 may be applied to process 110, and for brevity, they will not be described here.

[0158] Figure 12 is a sequence diagram of process 120 according to one embodiment of the present disclosure. Process 120 includes a communication device CM and a network NW, and process 120 may be a subsequence operation of process 80. In step 1200, the network NW sends an allocation query message to the communication device CM via the first CH. In step 1202, the communication device CM determines a role intent that indicates one of the following: CH reduction, CH reservation, and CH expansion. In step 1204, the communication device CM generates an instruction including the role intent. In step 1206, the communication device CM sends the instruction to the network NW via the first CH. In step 1208, the network NW allocates (or reassigns) the second CH to the communication device CM based on the instruction. In step 1210, the network NW generates a first allocation message indicating the second CH. In step 1212, the network NW sends the first allocation message to the communication device CM via the first CH. In step 1214, the communication device CM switches from the first channel to the second channel based on the first assigned message and communicates with the network. In step 1216, the communication device CM switches from the second channel to the primary channel based on time constraints.

[0159] In process 120, if the second channel is the primary channel, the communication device does not perform step 1216.

[0160] Refer to Figure 13 in combination with Figure 12. Figure 13 is a flowchart of process 130 according to one embodiment of the present disclosure, and shows details of step 1202 in Figure 12. In step 1302, the communication device CM decides whether or not a CH expansion is necessary. If the communication device CM decides that a CH expansion is necessary, it executes step 1304; if it decides that a CH expansion is not necessary, it executes step 1306. In step 1304, the communication device CM decides the role intent to instruct a CH expansion. In step 1306, the communication device CM decides whether or not to allow the donation of the first CH. If the communication device CM decides to allow the donation of the first CH, it executes step 1308; if it decides not to allow the donation of the first CH, it executes step 1310. In step 1308, the communication device CM decides the role intent to instruct a CH reduction. In step 1310, the communication device CM decides the role intent to instruct a CH reservation.

[0161] Refer to Figure 14 in combination with Figure 12. Figure 14 is a flowchart of process 140 according to one embodiment of the present disclosure, and shows details of step 1214 in Figure 12. In step 1402, the communication device CM determines whether the second channel is the primary channel. If the communication device CM determines that the second channel is the primary channel, it executes step 1404; if it determines that the second channel is not the primary channel, it executes step 1406. In step 1404, the communication device CM switches from the first channel to the primary channel. In step 1406, the communication device CM determines whether the second channel is the first channel. If the communication device CM determines that the second channel is the first channel, it executes step 1408; if it determines that the second channel is not the first channel, it executes step 1410. In step 1408, the communication device CM continues to apply the first channel to communicate with the network NW. In step 1410, the communication device CM switches from the first channel to the second channel. It should be noted that if the communication device instructs a channel expansion but no additional channels are available, the communication device will continue to use the first channel.

[0162] Refer to Figure 15 in conjunction with Figure 14. Figure 15 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 15, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH1 (e.g., block 1500). The communication device CM switches from non-primary CH NP_CH1 to primary CH P_CH1 (e.g., block 1502) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. In this case, CH extension is disabled, the BW available to the communication device is reduced, or an instruction (e.g., role intent) instructs CH reduction.

[0163] Refer to Figure 16 in conjunction with Figures 8 and 14. Figure 16 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 16, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 1604). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH1 (e.g., block 1600). The communication device CM switches from non-primary CH NP_CH1 to primary CH P_CH (e.g., block 1602) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary CH NP_CH1 (e.g., block 1600). In this case, CH extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct CH reduction.

[0164] Refer to Figure 17 in conjunction with Figure 14. Figure 17 is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. In Figure 17, primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 correspond to the time axis T. Channels NP_CH1 to NP_CH2 are not NPCA channels, channel NP_CH3 is an NPCA PCH, and channel NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary channels NP_CH1 to NP_CH2 (e.g., block 1700) (or combinations thereof). It should be noted that the non-primary channels NP_CH1 to NP_CH2 in this embodiment are contiguous, but are not limited thereto. The communication device CM switches from the non-primary channels NP_CH1~NP_CH2 (combination) to the non-primary channel NP_CH1 (e.g., block 1702) (e.g., based on the first assignment message), which corresponds to step 1410 in Figure 14. In this case, the channel extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct a channel reduction.

[0165] Refer to Figure 18 in combination with Figures 8 and 14. Figure 18 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 18, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 1804). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH1~NP_CH2 (e.g., block 1800) (or a combination thereof). It should be noted that the non-primary CH NP_CH1~NP_CH2 in this embodiment are adjacent but are not limited thereto. The communication device CM switches from non-primary channels NP_CH1~NP_CH2 (a combination) to non-primary channel NP_CH1 (e.g., block 1802) (for example, based on the first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via non-primary channels NP_CH1~NP_CH2 (e.g., block 1800). In this case, channel expansion is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct channel reduction.

[0166] Refer to Figure 19 in conjunction with Figure 14. Figure 19 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 19, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH1 (e.g., block 1900). The communication device CM switches from non-primary CH NP_CH1 to non-primary CH NP_CH1 and NP_CH3 (combination) (e.g., block 1902) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. In this case, CH extension is enabled, the available BW for the communication device is extended, or instructions (e.g., role intent) indicate CH extension. The second CH is discontinuous / non-adjacent.

[0167] Refer to Figure 20 in conjunction with Figures 8 and 14. Figure 20 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 20, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 2004). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH1 (e.g., block 2000). The communication device CM switches from non-primary CH NP_CH1 to non-primary CH NP_CH1 and NP_CH3 (combination) (e.g., block 2002) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary channel NP_CH1 (e.g., block 2000). In this case, channel extension is enabled, and the available BW for the communication device is extended, or an instruction (e.g., role intent) instructs channel extension. The second channel is not consecutive / non-contiguous.

[0168] Refer to Figure 21 in conjunction with Figure 14. Figure 21 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 21, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH1 (e.g., block 2100). The communication device CM switches from non-primary CH NP_CH1 to non-primary CH NP_CH1~NP_CH2 (e.g., block 2102) (combination) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. In this case, CH extension is enabled, the available BW for the communication device is extended, or instructions (e.g., role intent) indicate CH extension. The second CH is consecutive / adjacent.

[0169] Refer to Figure 22 in combination with Figures 8 and 14. Figure 22 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 22, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 2204). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH1 (e.g., block 2200). The communication device CM switches from non-primary CH NP_CH1 to non-primary CH NP_CH1~NP_CH2 (e.g., block 2202) (combination) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary channel NP_CH1 (e.g., block 2200). In this case, channel extension is enabled, and the available BW for the communication device is extended, or instructions (e.g., role intent) indicate channel extension. The second channel is contiguous / adjacent.

[0170] Refer to Figure 23 in conjunction with Figure 14. Figure 23 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 23, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH1 (e.g., block 2300). The communication device CM switches from non-primary CH NP_CH1 to non-primary CH NP_CH3 (e.g., block 2302) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. In this case, CH extension is disabled, the BW available to the communication device is reduced, or an instruction (e.g., role intent) instructs CH reduction.

[0171] Refer to Figure 24 in combination with Figures 8 and 14. Figure 24 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 24, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 2404). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH1 (e.g., block 2400). The communication device CM switches from non-primary CH NP_CH1 to non-primary CH NP_CH3 (e.g., block 2402) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary channel NP_CH1 (e.g., block 2400). In this case, channel extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct channel reduction.

[0172] Refer to Figure 25 in combination with Figure 14. Figure 25 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 25, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies the non-primary CH NP_CH1 (e.g., block 2500). The communication device CM switches from the non-primary CH NP_CH1 to the non-primary CH NP_CH4 (e.g., block 2502) (e.g., based on the first assignment message), which corresponds to step 1410 in Figure 14. In this case, CH extension is disabled, the BW available to the communication device is reduced, or instructions (e.g., role intent) instruct CH reduction.

[0173] Refer to Figure 26 in combination with Figures 8 and 14. Figure 26 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 26, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 2604). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH1 (e.g., block 2600). The communication device CM switches from non-primary CH NP_CH1 to non-primary CH NP_CH4 (e.g., block 2602) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary CH NP_CH1 (e.g., block 2600). In this case, CH extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct CH reduction.

[0174] Refer to Figure 27 in combination with Figure 14. Figure 15 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 27, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH3 (e.g., block 2700). The communication device CM switches from non-primary CH NP_CH3 to primary CH P_CH (e.g., block 2702) (e.g., based on a first assignment message), which corresponds to step 1404 in Figure 14. In this case, CH extension is disabled, the BW available to the communication device is reduced, or an instruction (e.g., role intent) instructs CH reduction.

[0175] Refer to Figure 28 in combination with Figures 8 and 14. Figure 28 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 28, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 2804). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH3 (e.g., block 2800). The communication device CM switches from non-primary CH NP_CH3 to primary CH P_CH (e.g., block 2802) (e.g., based on a first assignment message), which corresponds to step 1404 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary CH NP_CH3 (e.g., block 2800). In this case, CH extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct CH reduction.

[0176] Refer to Figure 29 in conjunction with Figure 14. Figure 29 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 29, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH3 (e.g., block 2900). The communication device CM switches from non-primary CH NP_CH3 to non-primary CH NP_CH4 (e.g., block 2902) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. In this case, CH extension is disabled, the BW available to the communication device is reduced, or an instruction (e.g., role intent) instructs CH reduction.

[0177] Refer to Figure 30 in combination with Figures 8 and 14. Figure 30 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 30, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 3004). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH3 (e.g., block 3000). The communication device CM switches from non-primary CH NP_CH3 to non-primary CH NP_CH4 (e.g., block 3002) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary CH NP_CH3 (e.g., block 3000). In this case, CH extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct CH reduction.

[0178] Refer to Figure 31 in conjunction with Figure 14. Figure 31 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 31, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH4 (e.g., block 3100). The communication device CM switches from non-primary CH NP_CH4 to primary CH P_CH (e.g., block 3102) (e.g., based on a first assignment message), which corresponds to step 1404 in Figure 14. In this case, CH extension is disabled, the BW available to the communication device is reduced, or an instruction (e.g., role intent) instructs CH reduction.

[0179] Refer to Figure 32 in combination with Figures 8 and 14. Figure 32 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 32, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 3204). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH4 (e.g., block 3200). The communication device CM switches from non-primary CH NP_CH4 to primary CH P_CH (e.g., block 3202) (e.g., based on a first assignment message), which corresponds to step 1404 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary channel NP_CH4 (e.g., block 3200). In this case, channel extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct channel reduction.

[0180] Refer to Figure 33 in conjunction with Figure 14. Figure 33 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 33, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies non-primary CH NP_CH4 (e.g., block 3300). The communication device CM switches from non-primary CH NP_CH4 to non-primary CH NP_CH3 (e.g., block 3302) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. In this case, CH extension is disabled, the BW available to the communication device is reduced, or an instruction (e.g., role intent) instructs CH reduction.

[0181] Refer to Figure 34 in combination with Figures 8 and 14. Figure 34 is a schematic diagram of primary CH P_CH and non-primary CH NP_CH1~NP_CH4 according to one embodiment of the present disclosure. In Figure 34, primary CH P_CH and non-primary CH NP_CH1~NP_CH4 correspond to the time axis T. CH NP_CH1~NP_CH2 are not NPCA CHs, CH NP_CH3 is an NPCA PCH, and CH NP_CH4 is an NPCA SCH. The communication device CM operates in a specific mode and applies primary CH P_CH (e.g., block 3404). The communication device CM switches from primary CH P_CH to non-primary CH NP_CH4 (e.g., block 3400). The communication device CM switches from non-primary CH NP_CH4 to non-primary CH NP_CH3 (e.g., block 3402) (e.g., based on a first assignment message), which corresponds to step 1410 in Figure 14. For example, the first assignment message is received by the communication device CM from the network NW via a non-primary CH NP_CH4 (e.g., block 3400). In this case, CH extension is disabled, the available BW for the communication device is reduced, or instructions (e.g., role intent) instruct CH reduction.

[0182] Refer to Figure 35 in combination with Figures 12 and 14. Figure 35 is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. While Figure 12 shows an embodiment of one communication device, Figure 35 shows an embodiment of multiple communication devices CM1 to CM6. Communication devices CM1 to CM4 operate in a specific mode and apply non-primary channels NP_CH1 to NP_CH4, respectively. Communication devices CM5 to CM6 disable operation in a specific mode and apply primary channel P_CH. Furthermore, each of communication devices CM1 to CM4 may be the communication device CM in Figure 12.

[0183] In Figure 35, the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 correspond to the time axis T. Each of the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 may also be the primary channel and the first channel in Figure 12. For communication device CM1, the first channel is the non-primary channel NP_CH1. For communication device CM2, the first channel is the non-primary channel NP_CH2. For communication device CM3, the first channel is the non-primary channel NP_CH3. For communication device CM4, the first channel is the non-primary channel NP_CH4.

[0184] Blocks 3502_1 in non-primary channel NP_CH1, 3502_2 in non-primary channel NP_CH2, 3502_3 in non-primary channel NP_CH3, and 3502_4 in non-primary channel NP_CH4 represent communication operations performed by communication devices CM1 to CM4, respectively. For example, communication devices CM1 to CM4 each apply non-primary channels NP_CH1 to NP_CH4 to communicate with the network NW. A communication device (e.g., communication device CM1) may send an allocation request to the network NW. The allocation request may be sent via resources contained in the area indicated by a block (e.g., block 3502_1).

[0185] Blocks 3504 for non-primary channels NP_CH1 to NP_CH4 correspond to step 1200 in Figure 12. The network NW sends allocation query messages to communication devices CM1 to CM4. Blocks 3506_1 for non-primary channel NP_CH1, 3506_2 for non-primary channel NP_CH2, 3506_3 for non-primary channel NP_CH3, and 3506_4 for non-primary channel NP_CH4 correspond to step 1206 in Figure 12. Communication devices CM1 to CM4 each send their instructions to the network NW. The instruction from communication device CM1 may instruct channel reservation. The instructions from communication devices CM2 to CM3 may instruct channel reduction. The instruction from communication device CM4 may instruct channel expansion. (Data) transmission and / or reception may be performed corresponding to blocks (e.g., block 3502_2), but should be noted that these are not shown in this figure for brevity.

[0186] Block 3508 of non-primary channels NP_CH1 to NP_CH4 corresponds to step 1212 in Figure 12. The network NW sends a first assignment message. The first assignment message indicates non-primary channels NP_CH2 to NP_CH4 (a combination) (i.e., all available channels) or non-primary channels NP_CH2 to NP_CH3 (i.e., additional available channels) of communication device CM4. The first assignment message may optionally / further indicate non-primary channel NP_CH1 of communication device CM1. The first assignment message may optionally / further indicate primary channels P_CH of communication devices CM2 to CM3. As a result, communication device CM1 continues to apply non-primary channel NP_CH1 (e.g., block 3510_1), which corresponds to step 1408 in Figure 14. Communication devices CM2 and CM3 switch to primary channels P_CH (e.g., blocks 3510_2 and 3510_3), which corresponds to step 1404 in Figure 14. Communication device CM4 switches to non-primary channels NP_CH2 to NP_CH4 (e.g., block 3510_4) (or a combination thereof), which corresponds to step 1410 in Figure 14. Because communication devices CM2 and CM3 switch to primary channels P_CH, communication devices CM2, CM3 and CM5, CM6 apply primary channels P_CH (e.g., blocks 3510_2, 3510_3, 3510_5, and 3510_6) (in sequence, alternately) by contention-based channel access.

[0187] Then, communication devices CM1 and CM4 switch to primary CH P_CH (e.g., blocks 3512_1 and 3512_4) at the end of a specific mode, which corresponds to step 1216 in Figure 12. As communication devices CM1 and CM4 switch to primary CH P_CH, communication devices CM1 to CM6 apply primary CH P_CH (e.g., blocks 3512_1 to 3512_6) (in sequence, alternately) by contention-based channel access.

[0188] Figure 35 may also represent the subsequence status of Figure 9A (or Figures 9B and 9C). For example, block 904_4 corresponds to block 3502_4.

[0189] Refer to Figure 36 in combination with Figures 12 and 14. Figure 36 is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. While Figure 12 shows an embodiment of one communication device, Figure 36 shows an embodiment of multiple communication devices CM1 to CM5. Communication devices CM1 to CM4 operate in a specific mode and apply non-primary channels NP_CH1 to NP_CH4, respectively. Communication device CM5 disables operation in a specific mode and applies the primary channel P_CH. Furthermore, each of communication devices CM1 to CM4 may be the communication device CM in Figure 12.

[0190] In Figure 36, the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 correspond to the time axis T. Each of the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 may also be the primary channel and the first channel in Figure 12. For communication device CM1, the first channel is the non-primary channel NP_CH1. For communication device CM2, the first channel is the non-primary channel NP_CH2. For communication device CM3, the first channel is the non-primary channel NP_CH3. For communication device CM4, the first channel is the non-primary channel NP_CH4.

[0191] Blocks 3602_1 in non-primary channel NP_CH1, 3602_2 in non-primary channel NP_CH2, 3602_3 in non-primary channel NP_CH3, and 3602_4 in non-primary channel NP_CH4 represent communication operations performed by communication devices CM1 to CM4, respectively. For example, communication devices CM1 to CM4 each apply non-primary channels NP_CH1 to NP_CH4 to communicate with the network NW. A communication device (e.g., communication device CM1) may send instructions to the network NW. Instructions may be sent via resources contained in the area indicated by a block (e.g., block 3602_1).

[0192] Block 3604 of non-primary channels NP_CH1~NP_CH4 corresponds to step 1212 in Figure 12. The network NW sends a first assignment message. The first assignment message indicates non-primary channel NP_CH1 of communication device CM1. The first assignment message indicates non-primary channels NP_CH2~NP_CH4 (combination) (i.e., all available channels) or non-primary channels NP_CH2~NP_CH4 (i.e., additional available channels) of communication device CM4. The first assignment message may optionally / further indicate primary channels P_CH of communication devices CM2~CM3. As a result, communication device CM1 continues to apply non-primary channel NP_CH1 (e.g., block 3606_1), which corresponds to step 1408 in Figure 14. Communication devices CM2 and CM3 switch to primary channels P_CH (e.g., blocks 3606_2 and 3606_3), which corresponds to step 1404 in Figure 14. Communication device CM4 switches to non-primary channels NP_CH2 and NP_CH4 (e.g., block 3606_4) (or a combination thereof), which corresponds to step 1410 in Figure 14. Because communication devices CM2 and CM3 switch to primary channels P_CH, communication devices CM2, CM3, and CM5 apply primary channels P_CH (e.g., blocks 3606_2, 3606_3, and 3606_5) (in sequence, alternately) by contention-based channel access.

[0193] Blocks 3608_1 in non-primary channel NP_CH1, 3608_2 in non-primary channel NP_CH2, 3608_3 in non-primary channel NP_CH3, and 3608_4 in non-primary channel NP_CH4 correspond to step 1206 in Figure 12. Communication devices CM1 to CM4 then transmit their respective individual instructions to the network NW.

[0194] Block 3610, containing the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4, corresponds to step 1212 in Figure 12. The network NW sends the following first assignment message. The next first assignment message indicates the primary channel P_CH for communication devices CM1 and CM3. The next first assignment message indicates the non-primary channels NP_CH3 to NP_CH4 (combination) (i.e., all available channels) or non-primary channels NP_CH3 to NP_CH4 (i.e., additional available channels) for communication device CM4. The next first assignment message may optionally / further indicate the non-primary channel NP_CH2 for communication device CM2. This causes communication device CM1 to switch to the primary channel P_CH (e.g., block 3612_1), which corresponds to step 1402 in Figure 14. Communication device CM2 switches to the non-primary channel 2 (e.g., block 3612_2), which corresponds to step 1410 in Figure 14. Communication device CM3 continues to apply the primary channel P_CH, which corresponds to step 1408 in Figure 14. Communication device CM4 switches to the non-primary channels NP_CH3~NP_CH4 (e.g., block 3612_4) (or a combination thereof), which corresponds to step 1410 in Figure 14. In other words, the channels (and resources) previously allocated to communication device CM4 are reallocated / released. Because communication device CM1 switches to the primary channel P_CH and communication device CM2 switches from the primary channel P_CH, communication devices CM1, CM3, and CM5 apply the primary channels P_CH (e.g., resources 3612_1, 3612_3, and 3612_5) (in sequence, alternately) by contention-based channel access.

[0195] Refer to Figure 37 in combination with Figures 12 and 14. Figure 37 is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. While Figure 12 shows an embodiment of one communication device, Figure 37 shows an embodiment of multiple communication devices CM1 to CM5. Communication devices CM1 to CM4 operate in a specific mode, and communication device CM5 disables operation in the specific mode. Furthermore, each of communication devices CM1 to CM4 may be the communication device CM in Figure 12.

[0196] In Figure 37, blocks 3702_1~3702_4, 3704, 3706_1~3706_5 and 3708_1~3708_4 can be referenced from blocks 3602_1~3602_4, 3604, 3606_1~3606_5 and 3608_1~3608_4 in Figure 36, and will not be explained here.

[0197] Block 3710 of the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 corresponds to step 1212 in Figure 12. The network NW sends the following first assignment message. The following first assignment message indicates the non-primary channel NP_CH1 for communication device CM1. The following first assignment message indicates the primary channel P_CH for communication devices CM3 to CM4. The following first assignment message may optionally / further indicate the non-primary channel NP_CH2 for communication device CM2. As a result, communication device CM1 continues to apply the non-primary channel NP_CH1 (e.g., block 3712_1), which corresponds to step 1408 in Figure 14. Communication device CM2 switches to the non-primary channel NP_CH2 (e.g., block 3712_2), which corresponds to step 1410 in Figure 14. Communication device CM3 continues to apply the primary channel P_CH. Communication device CM4 switches to primary CH P_CH (e.g., block 3712_4), which corresponds to step 1404 in Figure 14. As communication device CM2 switches from primary CH P_CH and communication device CM4 switches to primary CH P_CH, communication devices CM3 to CM5 apply primary CH P_CH (e.g., blocks 3712_3 to 3712_5) (in sequence, alternately) by contention-based channel access.

[0198] Refer to Figure 38 in combination with Figures 12 and 14. Figure 38 is a schematic diagram of primary channel P_CH and non-primary channels NP_CH1 to NP_CH4 according to one embodiment of the present disclosure. While Figure 12 shows an embodiment of one communication device, Figure 38 shows an embodiment of multiple communication devices CM1 to CM5. Communication devices CM1 to CM4 operate in a specific mode, and communication device CM5 disables operation in the specific mode. Furthermore, each of communication devices CM1 to CM4 may be the communication device CM in Figure 12.

[0199] In Figure 38, blocks 3802_1 to 3802_4 can be referenced from blocks 3602_1 to 3602_4 in Figure 36, and will not be explained here.

[0200] Block 3804 of non-primary channels NP_CH1 to NP_CH4 corresponds to step 1212 in Figure 12. The network NW sends a first assignment message. The first assignment message indicates non-primary channel NP_CH1 of communication device CM1. The first assignment message indicates non-primary channels NP_CH2 and NP_CH4 (or a combination thereof) of communication device CM4. The first assignment message may optionally / further indicate primary channel P_CH of communication device CM2 and non-primary channel NP_CH3 of communication device CM3. As a result, communication device CM1 continues to apply non-primary channel NP_CH1 (e.g., block 3806_1), which corresponds to step 1408 in Figure 14. Communication device CM2 switches to primary channel P_CH (e.g., block 3806_2), which corresponds to step 1404 in Figure 14. Communication device CM3 continues to apply the non-primary channel NP_CH3 (e.g., block 3806_3), which corresponds to step 1408 in Figure 14. Communication device CM4 switches to the non-primary channels NP_CH2 and NP_CH4 (e.g., block 3806_4) (a combination), which corresponds to step 1410 in Figure 14. Because communication device CM2 switches to the primary channel P_CH, communication devices CM2 and CM5 apply the primary channels P_CH (e.g., resources 3806_2 and 3806_5) (in sequence, alternately) by contention-based channel access. For example, both communication devices CM3 and CM4 instruct channel expansion, but only communication device CM3 is allocated more channels (e.g., because communication device CM3 has a higher priority and / or because the data being transmitted has a higher priority).

[0201] Block 3808_1 in the non-primary channel NP_CH1, block 3808_2 in the primary channel P_CH, block 3808_3 in the non-primary channel NP_CH3, and block 3808_4 in the non-primary channels NP_CH2 and NP_CH4 correspond to step 1206 in Figure 12. Communication devices CM1 to CM4 transmit their next individual instructions to the network NW via the resources contained in the areas indicated by blocks 3808_1, 3808_2, 3808_3, and 3808_4, respectively.

[0202] Block 3810, containing the primary channel P_CH and non-primary channels NP_CH1 to NP_CH4, corresponds to step 1212 in Figure 12. The network NW sends the following first assignment message. The following first assignment message indicates the primary channel P_CH for communication devices CM1 to CM2. The following first assignment message indicates the non-primary channel NP_CH4 for communication device CM4. The following first assignment message may optionally / further indicate the non-primary channel NP_CH3 for communication device CM3. As a result, communication device CM1 switches to the primary channel P_CH (e.g., block 3812_1), which corresponds to step 1404 in Figure 14. Communication device CM2 continues to apply the primary channel P_CH, which corresponds to step 1408 in Figure 14. Communication device CM3 continues to apply the non-primary channel NP_CH3 (e.g., block 3812_3), which corresponds to step 1408 in Figure 14. Communication device CM4 switches to the non-primary channel NP_CH4 (e.g., block 3812_4), which corresponds to step 1410 in Figure 14. As communication device CM1 switches to the primary channel P_CH, communication devices CM1-CM2 and CM5 apply the primary channels P_CH (e.g., blocks 3812_1-3812_2 and 3812_5) (in sequence, alternately) by contention-based channel access.

[0203] Figures 7, 9A, 9B, 9C, and 15-38 show that the primary channel P_CH and non-primary channels NP_CH1-NP_CH4 have the same bandwidth, but it should be noted that this is not the case. The bandwidth of the primary channel P_CH may differ from the bandwidth of the non-primary channels NP_CH1-NP_CH4. Also, the bandwidths of the non-primary channels NP_CH1-NP_CH4 may be the same or different.

[0204] Figures 7, 9A, 9B, 9C, and 15-38 show that the number of non-primary CHs is 4, but it should be noted that this is not limited to this number.

[0205] The primary channel (e.g., P_CH) and non-primary channels (e.g., NP_CH1 to NP_CH4) may correspond to a single basic service set (BSS) operating on the network. The BSS may have an operating bandwidth (e.g., 80 MHz, 160 MHz, or 320 MHz).

[0206] When NPCA mode is enabled, one of the non-primary channels (e.g., NP_CH3) may be the NPCA primary channel. At least one of the remaining non-primary channels (e.g., NP_CH4) may be available for NPCA operation and may function as an NPCA (secondary) channel. The set of channels available for NPCA operation may be indicated or advertised (e.g., by the network via signaling).

[0207] If a non-primary channel (e.g., NP_CH1) is unavailable for NPCA (e.g., due to interference or invalidation), such a channel may function as a non-NPCA channel. Unavailable channel sets may also be indicated or advertised (e.g., by the network via signaling).

[0208] The number, location, and bandwidth of channels in the schematic diagrams of primary and non-primary channels described above are examples for illustrative purposes only, and this disclosure is not limited thereto.

[0209] The locations and types of non-primary CHs described above are illustrative and are not limited to those described herein. For example, NP_CH2 may function as the NPCA primary channel.

[0210] The above-described combinations of non-primary channel locations and types are illustrative and the disclosure is not limited thereto. For example, blocks 1700, 1902, and 2102 may include a combination of at least one non-NPCA channel, one NPCA primary channel, and one NPCA (secondary) channel. Thus, the channels used by blocks 1702, 1900, and 2100 may be included in the channels used by blocks 1700, 1902, and 2102, respectively.

[0211] It should be noted that, for the sake of brevity, this disclosure omits certain messages, information, and instructions (e.g., Short Interframe Space (SIFS), Transmittable (CTS), Request to Transmit (RTS), Padding (Delay), Backoff, Delta, etc.).

[0212] It should be noted that the terms "first," "second," "third," and "fourth" mentioned above are used to distinguish related descriptions and do not limit the order of related descriptions. The term "subchannel" can be replaced with "subband." The action of "determine" mentioned above can be replaced with the actions of "compute," "calculate," "obtain," "generate," "output," "use," "choose / select," "decide," or "is configured to." The phrase "according to" mentioned above can be replaced with "in response to." The term "via" mentioned above can be replaced with "on," "in," or "at." The terms "when," "if," or "since" mentioned above can be replaced with "in response to."

[0213] Those skilled in the art will readily be able to combine, modify, and / or change the above-described description and embodiments. The above-described description, steps, and / or processes, including the suggested steps, can be implemented by means that may be hardware, software, firmware (known as a combination of a hardware device and computer instructions and data existing as read-only software on the hardware device), an electronic system, or a combination thereof. One example of such means may be a communication device.

[0214] Examples of hardware may include analog circuits, digital circuits, and / or mixed circuits. For example, the hardware may include ASICs, field-programmable gate arrays (FPGAs), programmable logic devices, combined hardware components, or combinations thereof. In another embodiment, the hardware may include general-purpose processors, microprocessors, controllers, digital signal processors (DSPs), or combinations thereof.

[0215] Examples of software may include a set of code, a set of instructions, and / or a set of functions held (e.g., stored) in a memory unit, such as a computer-readable medium. The computer-readable medium may include a SIM, ROM, flash memory, RAM, CD-ROM / DVD-ROM / BD-ROM, magnetic tape, hard disk, optical data storage device, non-volatile storage unit, or a combination thereof. The computer-readable medium (e.g., a memory unit) may be coupled internally (e.g., integrated) or externally (e.g., isolated) to at least one processor. At least one processor, which may include one or more modules, may execute (e.g., be configured to execute) the software in the computer-readable medium. The set of code, a set of instructions, and / or a set of functions may cause at least one processor, module, hardware, and / or electronic system to perform the relevant steps.

[0216] Examples of electronic systems may include system-on-a-chip (SoC), system-in-package (SiP), computer-on-module (CoM), computer program products, devices, mobile phones, laptops, tablet computers, e-books or portable computer systems, and communication devices 20.

[0217] In summary, embodiments of this disclosure provide a method and a communication apparatus for handling resources for communication. When the communication apparatus decides to operate in a particular mode, the network instructs the communication apparatus to use a non-primary channel. The communication apparatus communicates with the network by applying the non-primary channel. In a particular mode, the communication apparatus dynamically switches channels to communicate with the network. Thus, the problem of handling resources for communication can be solved.

[0218] Those skilled in the art will readily realize that many modifications and changes can be made to the apparatus and method while maintaining the teachings of the present invention. Accordingly, the above disclosure should be construed as being limited only by the boundaries and scope of the appended claims.

Claims

1. The steps include performing at least one communication operation with a network via a first channel (CH), The steps include: operating on the second channel based on at least one of instructions, time constraints, and interference conditions; A wireless communication method for a communication device, wherein at least one non-primary CH access (NPCA) CH is acquired by the network.

2. The wireless communication method according to claim 1, wherein the communication device operates on the second channel if the second channel is available to the communication device or if the bandwidth (BW) of the network is dynamically expanded.

3. The wireless communication method according to claim 1, wherein the instruction is determined by the communication device.

4. The wireless communication method according to claim 3, further comprising the step of transmitting the instruction to the network via the first CH.

5. The wireless communication method according to claim 4, wherein, after receiving an assignment inquiry message from the network, the instruction is transmitted to the network.

6. The process further includes the step of sending an allocation request to the network, The wireless communication method according to claim 5, wherein the assignment inquiry message is received after the assignment request has been transmitted.

7. The process further includes receiving a first assignment message from the network via the first CH based on the instructions, The wireless communication method according to claim 1, wherein the first assignment message indicates the second channel.

8. The wireless communication method according to claim 1, wherein the second channel is determined based on the instruction.

9. The wireless communication method according to claim 1, wherein the second channel is determined based on the measurement results obtained by the communication device.

10. The wireless communication method according to claim 9, wherein the second channel is determined by the network, and the measurement result is included in the instruction or a prior message preceding the instruction.

11. The wireless communication method according to claim 10, wherein the pre-message is transmitted to the network via the primary channel.

12. The wireless communication method according to claim 9, wherein the measurement result includes at least one of a first measurement result of at least one secondary CH (SCH) and a second measurement result of at least one NPCA CH.

13. The wireless communication method according to claim 12, wherein the first measurement result and the second measurement result are transmitted via the same message or different messages.

14. The wireless communication method according to claim 12, wherein the communication device supports operation on an NPCA CH, or if CH reduction is prioritized, performs at least one measurement on the at least one NPCA CH to obtain the second measurement result.

15. The wireless communication method according to claim 1, wherein the instruction indicates at least one of data information and role intent.

16. The wireless communication method according to claim 15, wherein the data information indicates at least one of the data volume and the data traffic type, and the role intent indicates one of the CH reduction, CH reservation and CH expansion.

17. When the instruction indicates a reduction in CH, the restriction is that the second CH is one of the primary CH, the first non-primary CH, and the second non-primary CH, The limitation is that the first non-primary CH is included in the first CH and has a narrower bandwidth than the first CH, The wireless communication method according to claim 1, wherein at least one of the restrictions that the second non-primary CH is not included in the first CH is satisfied.

18. The wireless communication method according to claim 17, wherein the first non-primary channel or the second non-primary channel is indicated by a second assignment message received from the network via the first channel.

19. The wireless communication method according to claim 17, further comprising the step of determining the first non-primary CH or the second non-primary CH.

20. The wireless communication method according to claim 17, wherein the second non-primary CH is one of at least one NPCA CH.

21. If CH extension is enabled, or if the instruction indicates CH extension, the second CH is the first CH, or the restriction includes a third non-primary CH, The wireless communication method according to claim 1, wherein at least one of the following is satisfied: the second channel has a wider bandwidth than the first channel.

22. The wireless communication method according to claim 21, wherein the third non-primary CH is the entirety of the available CHs including the first CH, or an additional available CH other than the first CH.

23. The wireless communication method according to claim 1, wherein when the instruction instructs a CH reservation, the second CH is the first CH.

24. The wireless communication method according to claim 1, wherein the aforementioned time constraint is determined by the communication device or instructed by the network to at least one communication device.

25. The wireless communication method according to claim 24, wherein the aforementioned time constraint is received from the network via the first channel.

26. The wireless communication method according to claim 1, wherein the aforementioned time constraint specifies at least one of time and timer.

27. The wireless communication method according to claim 1, wherein the first channel is a fourth non-primary channel.

28. Restrictions that the primary CH, the first CH, and the second CH are acquired by the network over a certain period of time, The wireless communication method according to claim 1, wherein at least one of the restrictions that at least one of the primary CH, the first CH, and the second CH is assigned to the communication device by the network is satisfied.

29. The wireless communication method according to claim 1, further comprising the step of switching from a primary channel to a first channel in order to communicate with the network.

30. The wireless communication method according to claim 29, further comprising the step of receiving a third assignment message from the network via the primary CH indicating the first CH.

31. The wireless communication method according to claim 1, wherein the communication device operates in a specific mode which is dynamic subchannel operation (DSO) mode, and operates on the second channel.

32. The steps performed on the second channel are: The wireless communication method according to claim 1, further comprising the step of switching from the first channel to the second channel in order to communicate with the network.

33. The wireless communication method according to claim 1, wherein the second CH includes at least one of a primary CH, a specific non-primary CH, and a specific NPCA CH.

34. The wireless communication method according to claim 1, wherein the first CH includes at least one of a primary CH, a specific non-primary CH, and a specific NPCA CH.

35. The wireless communication method according to claim 1, wherein the first CH is an NPCA CH.

36. The wireless communication method according to claim 1, wherein the first CH is an NPCA CH.

37. If the first CH is a PCH, The restriction that the second CH is one of the SCH, NPCA PCH, and NPCA SCH dedicated to the communication device, If the first CH is the SCH, the restriction is that the second CH is one of the PCH, the NPCA PCH, and the NPCA SCH, If the first CH is the NPCA PCH, the restriction is that the second CH is one of the PCH, the SCH, and the NPCA SCH, The wireless communication method according to claim 1, wherein if the first CH is the NPCA SCH, at least one of the restrictions that the second CH is one of the PCH, the SCH, and the NPCA PCH is satisfied.

38. At least one storage device, The system includes at least one processing circuit coupled to the at least one storage device, the at least one storage device is configured to store instructions, and the at least one processing circuit is configured An instruction to perform at least one communication operation with the network via the first channel (CH), It is configured to execute instructions that operate on the second channel based on at least one of the following: instructions, time constraints, and interference conditions. A communication device having at least one non-primary CH access (NPCA) CH acquired by the network.

39. A wireless communication method for a network that communicates with at least one communication device, The steps include performing at least one communication operation with one of the communication devices via a first channel (CH), The steps include operating on the second CH based on at least one of instructions, time constraints, and interference conditions, A wireless communication method wherein at least one non-primary CH access (NPCA) CH is acquired by the network.

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