Method and communication device for handling communications with a serving cell

Abstract

To provide a method for handling communications with a serving cell of a communication device.SOLUTION: A method in a wireless communication system includes the steps of: receiving a first configuration which indicates a set of downlink symbols, a set of flexible symbols, and a set of uplink symbols, by a communication device; receiving a second configuration which indicates a set of special symbols in the set of downlink symbols and / or the set of flexible symbols, of a serving cell; receiving an indicator for an uplink transmission in a bandwidth part of the serving cell; performing the uplink transmission according to a first resource configuration, in response to the uplink transmission overlapping with an uplink symbol in the set of uplink symbols; and determining whether or not to perform the uplink transmission, in response to the uplink transmission overlapping with the special symbol in the set of special symbols.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of U.S. Provisional Application No. 63 / 542,778, filed October 6, 2023, the contents of which are incorporated herein by reference.

[0002] Technical Field The present disclosure relates to methods and communication devices for use in wireless communication systems, and more particularly to methods and communication devices for handling communications with a serving cell. [Background technology]

[0003] The Long Term Evolution (LTE) system, which supports the 3rd Generation Partnership Project (3GPP) Rel-8 and / or 3GPP Rel-9 standards, is being developed by 3GPP as the successor to the universal mobile telecommunication system (UMTS) to further enhance the performance of UMTS to meet the growing needs of users.

[0004] The LTE-Advanced (LTE-A) system, as its name suggests, is an evolution of the LTE system. The LTE-A system targets faster switching between power states, improves performance at the coverage edge of evolved Node-Bs (eNBs), increases peak data rates and throughput, and includes advanced technologies such as carrier aggregation (CA) and uplink (UL) multiple-input multiple-output (UL-MIMO).

[0005] The next generation radio access network (NG-RAN), which supports 3GPP Rel-15 to Rel-19 standards, is being developed to further enhance the LTE-A system. The NG-RAN includes one or more next generation Node-Bs (gNBs) and has characteristics such as wider operating bands, different numerologies for different frequency ranges, massive MIMO, and advanced channel coding.

[0006] As the demand for the use of a communication device increases, the amount of signals (e.g., data, messages, and / or packets) communicated between the communication device and the network also increases. Current transmission resources in a serving cell are insufficient to communicate the signals. Therefore, how to handle communication between a communication device and a network having a serving cell to improve efficiency (e.g., enhance UL coverage and / or reduce transmission delay) when transmission resources in the serving cell are limited is an important problem to be solved. Summary of the Invention

[0007] Therefore, the present disclosure provides a method and a communication device for handling communication with a serving cell to solve the above problems.

[0008] A method for processing communication with a serving cell of a communication device includes receiving from a network a first configuration indicating at least one of a set of downlink (DL) symbols, a set of flexible symbols, and a set of uplink (UL) symbols for a time period; receiving from the network a second configuration for the serving cell, the second configuration indicating a set of special symbols in at least one of the set of DL symbols and the set of flexible symbols, the set of special symbols including at least one DL subband and at least one UL subband in different frequency regions of the serving cell; receiving from the network an indicator of a first UL transmission in a bandwidth portion (BWP) of the serving cell, the indicator corresponding to a first priority indicator; performing the first UL transmission based on a first resource configuration in response to the first UL transmission overlapping in time with a UL symbol in the set of UL symbols; and determining whether to perform the first UL transmission in response to the first UL transmission overlapping in time with a special symbol in the set of special symbols.

[0009] A communications device for processing communications with a serving cell 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, the at least one processing circuit receiving from a network a first configuration indicating at least one of a set of downlink (DL) symbols, a set of flexible symbols, and a set of uplink (UL) symbols for a time period; and receiving from the network a second configuration for the serving cell, the second configuration indicating special symbols in at least one of the set of DL symbols and the set of flexible symbols. instructions to receive from the network an indicator of a first UL transmission in a bandwidth portion (BWP) of the serving cell, the indicator corresponding to a first priority indicator; instructions to perform the first UL transmission based on a first resource configuration in response to the first UL transmission overlapping in time with a UL symbol in the set of UL symbols; and instructions to determine whether to perform the first UL transmission in response to the first UL transmission overlapping in time with a special symbol in the set of special symbols.

[0010] A method for processing communication with a communication device by a network includes the steps of: transmitting a first configuration to the communication device, the first configuration indicating at least one of a set of downlink (DL) symbols, a set of flexible symbols, and a set of uplink (UL) symbols for a certain time period; transmitting a second configuration of the serving cell to the communication device, the second configuration indicating a set of special symbols in at least one of the set of DL symbols and the set of flexible symbols, the set of special symbols including at least one DL subband and at least one UL subband in different frequency regions of the serving cell; transmitting an indicator of a first UL transmission in a bandwidth portion (BWP) of the serving cell corresponding to a first priority indicator to the communication device; and transmitting a first resource configuration to the communication device, wherein the first resource configuration enables the communication device to perform the first UL transmission in response to the first UL transmission overlapping with a UL symbol in the set of UL symbols.

[0011] These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic diagram of a wireless communication system according to an embodiment of the present disclosure. [Figure 2] 1 is a schematic diagram of a communication device according to an embodiment of the present disclosure. [Figure 3] 1 is a flowchart of a process according to one embodiment of the present disclosure. [Figure 4] 1 is a schematic diagram of communication between a communication device and a network according to an embodiment of the present disclosure. [Figure 5] 1 is a schematic diagram of communication between a communication device and a network according to an embodiment of the present disclosure. [Figure 6] 1 is a schematic diagram of communication between a communication device and a network according to an embodiment of the present disclosure. [Figure 7] 1 is a schematic diagram of communication between a communication device and a network according to an embodiment of the present disclosure. [Figure 8] 1 is a schematic diagram of communication between a communication device and a network according to an embodiment of the present disclosure. [Figure 9] FIG. 1 is a schematic diagram of two special symbols according to one embodiment of the present disclosure. [Figure 10] 1 is a schematic diagram of communication between a communication device and a network according to an embodiment of the present disclosure. [Figure 11] 1 is a schematic diagram of communication between a communication device and a network according to an embodiment of the present disclosure. [Figure 12] 1 is a flowchart of a process according to one embodiment of the present disclosure. [Figure 13] 1 is a flowchart of a process according to one embodiment of the present disclosure. [Figure 14] 1 is a flowchart of a process according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0013] FIG. 1 is a schematic diagram of a wireless communication system 10 according to one embodiment of the present invention. The wireless communication system 10 is simply comprised of a network 12 and multiple communication devices 14. The wireless communication system 10 may support time-division duplexing (TDD) mode, frequency-division duplexing (FDD) mode, TDD-FDD interoperation mode, non-terrestrial network (NTN) mode, or licensed-assisted access (LAA) mode. That is, the network 12 and the communication devices 14 may communicate with each other via an FDD carrier, a TDD carrier, a licensed carrier (licensed serving cell), and / or an unlicensed carrier (unlicensed serving cell). Furthermore, the wireless communication system 10 may support carrier aggregation (CA). That is, the network 12 and the communication devices 14 may communicate with each other via multiple serving cells (e.g., multiple serving carriers), including a primary cell (e.g., a primary component carrier) and one or more secondary cells (e.g., secondary component carriers).

[0014] 1, the network 12 and the communication device 14 are used merely to illustrate the structure of the wireless communication system 10. In practice, the network 12 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, the network 12 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, an evolved version of the LTE-A system, etc. In one embodiment, the network 12 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 the network 12 may include an NTN gateway and an NTN payload. In one embodiment, network 12 may be any BS that conforms to a particular communication standard for communicating with communication devices 14 .

[0015] New Radio (NR) is a standard defined for 5G systems (or 5G networks) to provide a unified air interface with better performance. gNBs are deployed to realize 5G systems that support advanced features such as enhanced Mobile Broadband (eMBB), Ultra Reliable Low Latency Communications (URLLC), and massive Machine Type Communications (mMTC). eMBB provides broadband services with higher bandwidth and low / medium latency. URLLC provides applications (e.g., end-to-end communications) with higher reliability and low latency characteristics. Example applications include the industrial internet, smart grids, infrastructure protection, remote surgery, and intelligent transportation systems (ITS). mMTC can support the Internet of Things (IoT) in 5G systems, which includes billions of connected devices and / or sensors.

[0016] Furthermore, the network 12 may include at least one of a UTRAN / E-UTRAN / NG-RAN and a core network, and the core network may include network entities such as a Mobility Management Entity (MME), a Serving Gateway (S-GW), a Packet Data Network (PDN) Gateway (P-GW), a Self-Organizing Network (SON) server and / or a Radio Network Controller (RNC), an Access and Mobility Management Function (AMF), a Session Management Function (SMF), a User Plane Function (UPF), an Authentication Server Function (AUSF), etc. In one embodiment, after the network 12 receives the information sent by the communication device 14, the information may be processed only by the UTRAN / E-UTRAN / NG-RAN, and a decision corresponding to the information is made in the UTRAN / E-UTRAN / NG-RAN. In one embodiment, the UTRAN / E-UTRAN / NG-RAN may forward the information to the core network, and a decision corresponding to the information is made in the core network after the core network processes the information. In one embodiment, the information may be processed by both the UTRAN / E-UTRAN / NG-RAN and the core network, and a decision is made after coordination and / or cooperation is performed by the UTRAN / E-UTRAN / NG-RAN and the core network.

[0017] The communication device 14 may be a user equipment (UE), a very small aperture terminal (VSAT), a low-cost device (e.g., a machine-type communication (MTC) device), a device-to-device (D2D) communication device, a narrowband Internet of Things (IoT) (NB-IoT), a mobile phone, a laptop, a tablet computer, an e-book, a portable computer system, or a combination thereof. Furthermore, the network 12 and the communication device 14 may be viewed as a transmitter or a receiver according to the direction (i.e., the transmission direction), e.g., in the case of an uplink (UL), the communication device 14 is the transmitter and the network 12 is the receiver, and in the case of a downlink (DL), the network 12 is the transmitter and the communication device 14 is the receiver.

[0018] 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 communication device 14 or the network 12 shown in FIG. 1. The communication device 20 may include at least one processing circuit 200, such as a microprocessor or an 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 that can be 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 identity module (SIM), a read-only memory (ROM), a flash memory, a random access memory (RAM), a compact disc-read-only (CD-ROM), a digital versatile disc ROM (DVD-ROM), a Blu-ray disc ROM (BD-ROM), a magnetic tape, a hard disk, an optical data storage device, a non-volatile storage device, a non-transitory computer-readable medium (e.g., a tangible medium), etc. The 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) according to the processing results of the at least one processing circuit 200.

[0019] 3 is a flowchart of a process 30 according to one embodiment of the present disclosure. The process 30 may be utilized in a communication device (e.g., the communication device 14 of FIG. 1 or the communication device 20 of FIG. 2) to handle communication with a serving cell. The process 30 may be compiled into program code 214 and includes the following steps:

[0020] Step 300 starts.

[0021] In step 302, a first configuration is received from the network indicating at least one of a set of DL symbols, a set of flexible symbols, and a set of UL symbols for a period of time.

[0022] In step 304, a second configuration of the serving cell is received from the network, the second configuration indicating a set of special symbols in at least one of the set of DL symbols and the set of flexible symbols, the set of special symbols including at least one DL subband and at least one UL subband in different frequency regions of the serving cell.

[0023] In step 306, an indicator of a first UL transmission in a bandwidth portion (BWP) of the serving cell corresponding to a first priority indicator is received from the network.

[0024] Step 308 performs a first UL transmission according to the first resource configuration in response to the first UL transmission overlapping with a UL symbol in the set of UL symbols.

[0025] Step 310 determines whether to perform a first UL transmission in response to the first UL transmission overlapping in time with a special symbol in the set of special symbols.

[0026] In step 312, the process ends.

[0027] According to process 30, the communication device receives a first configuration (e.g., TDD-UL-DL-ConfigCommon) from the network. The first configuration indicates at least one of a DL symbol set, a flexible symbol set, and a UL symbol set (e.g., at least one symbol or radio frame) for a certain time period. Then, the communication device receives a second configuration for a serving cell from the network. The second configuration indicates a special symbol set in at least one of the DL symbol set and the flexible symbol set, the special symbol set including at least one DL subband and at least one UL subband in different frequency regions of the serving cell. The communication device receives an indicator of a first UL transmission in a BWP of the serving cell from the network. The first UL transmission corresponds to a first priority indicator. In response to the first UL transmission overlapping (e.g., completely) with a UL symbol (or at least one UL symbol) in the UL symbol set, the communication device performs (e.g., together with the network) the first UL transmission according to the first resource configuration. The communication device determines (e.g., together with the network) whether to perform the first UL transmission in response to the first UL transmission overlapping (e.g., completely) in time with a special symbol (or at least one special symbol) in the set of special symbols. That is, the special symbol includes an UL resource (e.g., at least one UL subband), and the first UL transmission may be performed in the UL resource of the special symbol. Thus, UL coverage is enhanced and transmission delay is reduced.

[0028] The implementation of the process 30 is not limited to the above description. To implement the process 30, the following embodiments may be applied.

[0029] In one embodiment, the first UL transmission satisfies at least one of the following conditions: the first UL transmission includes at least one of a physical UL control channel (PUCCH), a physical UL shared channel (PUSCH), a sounding reference signal (SRS), and a physical random access channel (PRACH); and the first UL transmission is indicated / configured / transmitted without at least one repetition. In one embodiment, the indicator is received via DL control information (DCI) or a radio resource control (RRC) signal. In one embodiment, the first resource configuration is indicated by the indicator or the RRC signal. In one embodiment, each subband of the at least one DL subband and the at least one UL subband includes at least one physical resource block (PRB). In one embodiment, the communication device determines a type (e.g., direction) of a symbol for the time period according to the first configuration. In one embodiment, the communication device determines at least one type of the at least one symbol in the time period according to the second setting. In one embodiment, the communication device determines at least one type of the at least one symbol in the time period according to the first setting and the second setting.

[0030] In one embodiment, a BWP is a (e.g., contiguous) set of PRBs on a carrier. In one embodiment, a communication device is configured with multiple BWPs (e.g., four BWPs). At any given time, a first BWP of the multiple BWPs is active for the UL and a second BWP of the multiple BWPs is active for the DL. In one embodiment, one of the multiple BWPs overlaps with at least one DL subband and at least one UL subband in at least one special symbol in the set of special symbols. In one embodiment, one of the multiple BWPs overlaps with at least one DL subband or at least one UL subband in at least one special symbol in the set of special symbols. In one embodiment, each BWP defined for a numerology has at least one of a different subcarrier spacing, symbol duration, and cyclic prefix (CP) length.

[0031] In one embodiment, in response to a first UL transmission that overlaps in time with a special symbol in the set of special symbols, the communication device determines whether to perform the first UL transmission (e.g., together with the network) according to a first priority index of a first PUCCH included in the first UL transmission. In one embodiment, the communication device performs the first UL transmission (e.g., together with the network) in the special symbol in response to the first UL transmission including the first PUCCH whose first priority index is a first value. In one embodiment, the communication device does not perform the first UL transmission (e.g., together with the network) in the special symbol in response to the first UL transmission including the first PUCCH whose first priority index is a second value. In one embodiment, the special symbol is indicated (or treated) as an UL resource, for example, if the first resource of the first UL transmission does not overlap with a second resource of DL reception or at least one DL subband.

[0032] In one embodiment, the communication device determines whether to perform the first UL transmission (e.g., together with the network) in response to a first UL transmission that overlaps in time with a special symbol in the set of special symbols according to a trigger type of the indicator. In one embodiment, the communication device performs the first UL transmission (e.g., together with the network) in the special symbol in response to an indicator indicated by the DCI. The first UL transmission includes at least one of a PUSCH scheduled / triggered by the DCI, a PUCCH carrying a hybrid automatic repeat request-acknowledgement (HARQ-ACK) scheduled / triggered by the DCI, and an SRS triggered by the DCI. In one embodiment, the communication device does not perform the first UL transmission (e.g., together with the network) in the special symbol in response to an indicator not indicated by the DCI. The first UL transmission includes at least one of an SR, channel state information (CSI), and periodic SRS. In one embodiment, at least one of the SR, CSI, and periodic SRS is configured by higher layer signaling (e.g., RRC signaling). In one embodiment, the communication device performs (e.g., with the network) the first UL transmission in a non-special symbol (e.g., an UL symbol in a set of UL symbols) or a special symbol. Further, the first UL transmission is performed in a non-special symbol in response to an indicator indicated by a signal other than the DCI (e.g., an RRC signal). The first UL transmission is performed in a special symbol in response to an indicator indicated by the DCI.

[0033] In one embodiment, the communication device determines (e.g., together with the network) whether to perform the first UL transmission according to a location of a transmission resource for the first UL transmission and a location of at least one DL subband in response to the first UL transmission overlapping in time with a special symbol in the set of special symbols. In one embodiment, the communication device performs (e.g., together with the network) the first UL transmission in the special symbol in response to the first UL transmission not overlapping with at least one DL subband. In one embodiment, the communication device refrains from performing (e.g., together with the network) the first UL transmission in the special symbol in response to the first UL transmission overlapping (e.g., fully or partially) with at least one DL subband.

[0034] In one embodiment, the communication device receives a third configuration from the network. In one embodiment, the third configuration includes first power information and second power information for a first UL transmission. In one embodiment, the first power information and second power information correspond to a UL symbol and a special symbol, respectively. In one embodiment, the first power information includes at least one first parameter (e.g., closedLoopIndex, p0-PUCCH-Id, and / or PathlossReferenceRS-Id). In one embodiment, the second power information includes at least one second parameter (e.g., closedLoopIndex, p0-PUCCH-Id, and / or PathlossReferenceRS-Id). In one embodiment, the communication device determines a first transmit power for the first UL transmission according to the first power information in response to the first UL transmission overlapping with the UL symbol. In one embodiment, the communication device determines a second transmit power for the first UL transmission according to the second power information in response to the first UL transmission overlapping with the special symbol.

[0035] In one embodiment, the third configuration includes first spatial relationship information and second spatial relationship information of the first UL transmission. In one embodiment, the first spatial relationship information and the second spatial relationship information correspond to an UL symbol and a special symbol, respectively. In one embodiment, the first spatial relationship information includes a first spatial relationship information identifier (ID). In one embodiment, the second spatial relationship information includes a second spatial relationship information ID. In one embodiment, the first spatial relationship information includes a first reference signal (RS) (e.g., a synchronization signal block (SSB) index, a CSI-RS index, or an SRS). In one embodiment, the second spatial relationship information includes a second RS (e.g., an SSB index, a CSI-RS index, or an SRS). In one embodiment, the communication device determines a first spatial relationship of the first UL transmission according to the first spatial relationship information in response to the first UL transmission overlapping with the UL symbol. In one embodiment, the communication device determines a second spatial relationship of the first UL transmission according to the second spatial relationship information in response to the first UL transmission overlapping with the special symbol.

[0036] In one embodiment, the third setting includes a first code rate and a second code rate for the first UL transmission. In one embodiment, the first code rate and the second code rate correspond to a UL symbol and a special symbol, respectively. In one embodiment, the communication device determines a first number of PRBs for the first UL transmission according to the first code rate in response to the first UL transmission overlapping with the UL symbol. In one embodiment, the communication device determines a second number of PRBs for the first UL transmission according to the second code rate in response to the first UL transmission overlapping with the special symbol. In one embodiment, the communication device is configured with a power offset. In one embodiment, the communication device performs (e.g., together with a network) the first UL transmission at the special symbol according to the power offset in response to the first UL transmission overlapping with the special symbol.

[0037] In one embodiment, the communication device avoids (e.g., with the network) performing the first UL transmission in a special symbol in response to a second UL transmission that overlaps in time with the first UL transmission. In one embodiment, the first UL transmission includes a first PUCCH having a first priority index with a second value, and the second UL transmission includes a second PUCCH having a second priority index with a first value. In one embodiment, the communication device performs the second UL transmission in a special symbol, and the second PUCCH includes first UL control information (UCI) of the first PUCCH. In one embodiment, the communication device performs the second UL transmission in a special symbol, and the second PUCCH does not include the first UCI of the first PUCCH. In one embodiment, the communication device multiplexes (or is configured to multiplex) the first UCI of the first PUCCH and the second UCI of the second PUCCH into a third PUCCH having a third priority index with a first value. In one embodiment, the communication device performs the third UL transmission in a slot that includes, for example, a special symbol, and the third UL transmission includes the third PUCCH. In one embodiment, a slot includes multiple symbols (e.g., multiple consecutive symbols). In one embodiment, the communication device multiplexes (or is configured to multiplex) a set of a first UCI of the first PUCCH and a UCI of the second PUCCH into a third PUCCH having a third priority index with a first value. In one embodiment, multiplexing of UCIs corresponding to different PUCCHs with different priority indexes (e.g., uci-MuxWithDiffPrio) in the special symbol is not applicable (e.g., regardless of whether the communication device is configured to multiplex UCIs corresponding to different PUCCHs with different priority indexes).

[0038] In one embodiment, the first UCI of the first PUCCH includes a first HARQ-ACK (e.g., is the first HARQ-ACK). In one embodiment, the second UCI of the second PUCCH includes a second HARQ-ACK (e.g., is the second HARQ-ACK). In one embodiment, the set of UCIs of the second PUCCH includes a third HARQ-ACK and a scheduling request (SR). In one embodiment, the HARQ-ACK (e.g., the first HARQ-ACK, the second HARQ-ACK, and / or the third HARQ-ACK) may be a semi-persistent scheduling physical DL shared channel (SPS-PDSCH). In one embodiment, at least one of the first UCI and the second UCI is a deferred UCI. That is, a special symbol is available for transmitting a PUCCH (e.g., the first PUCCH, the second PUCCH, or the third PUCCH) having a deferred UCI.

[0039] In one embodiment, in response to the special symbol being configured as a DL symbol in the set of DL symbols according to the first configuration, the communication device (e.g., together with the network) avoids performing a first UL transmission at the special symbol. That is, the first UL transmission is not performed at a symbol if the symbol is configured as a DL symbol according to the first configuration and as a special symbol according to the second configuration. In one embodiment, the first UL transmission satisfies at least one of the following conditions: the first UL transmission corresponds to a first priority indicator being a second value; the first UL transmission includes a first PUCCH carrying a (e.g., deferred) HARQ-ACK for the SPS-PDSCH; and the first UL transmission includes a first PUCCH carrying CSI.

[0040] In one embodiment, the communication device performs (e.g., with the network) a first UL transmission at a special symbol in response to the special symbol being configured as a flexible symbol in a set of flexible symbols according to a first configuration. In one embodiment, the special symbol is indicated by the network as a UL resource. That is, the first UL transmission is performed at a slot (or symbol) indicated as a UL resource (e.g., regardless of the first priority index corresponding to the first UL transmission) if the slot (or symbol) is configured as a flexible slot (or symbol) according to the first configuration and as a special slot (or symbol) according to a second configuration. In one embodiment, the special slot consists of a set of (e.g., 14) special symbols. In one embodiment, the communication device refrains from performing (e.g., with the network) a first UL transmission at a special symbol in response to the special symbol being configured as a flexible symbol according to the first configuration. In one embodiment, the communication device refrains from performing (e.g., with the network) a first UL transmission at a special symbol in response to the special symbol being configured as a flexible symbol according to the first configuration and the flexible symbol not indicating a direction. In one embodiment, the direction of the flexible symbol is indicated by the DCI. That is, the direction of the flexible symbol is not indicated if the communication device does not detect / receive DCI.

[0041] In one embodiment, the communication device performs (e.g., with a network) a first UL transmission on a special symbol in response to a first UL transmission including a first set of UCIs. In one embodiment, the communication device refrains from performing (e.g., with a network) a first UL transmission on a special symbol in response to a first UL transmission including a second set of UCIs. In one embodiment, the first set of UCIs includes at least one of a HARQ-ACK and an SR. In one embodiment, the first set of UCIs includes at least one of a HARQ-ACK, an SR, a Level 1-reference symbol received power (L1-RSRP), and a Level 1-signal to interference plus noise ratio (L1-SINR). In one embodiment, the second set of UCIs includes CSI. In one embodiment, the second set of UCIs includes at least one of a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indication (RI), an L1-RSRP, and an L1-SINR. In one embodiment, the first set of UCIs and the second set of UCIs are determined according to at least one of a predetermined rule and a higher layer signal (eg, an RRC signal).

[0042] In one embodiment, the communication device performs first DL reception (e.g., together with the network) on special symbols (different or the same as the special symbols in process 30) in the set of special symbols in response to an indicator indicated by the DCI (different from the indicator in process 30). The first DL reception includes at least one of a PDSCH scheduled by the DCI and a CSI-RS triggered by the DCI. In one embodiment, the communication device does not perform first DL reception (e.g., together with the network) on special symbols (different or the same as the special symbols in process 30) in the set of special symbols in response to an indicator not indicated by the DCI (different from the indicator in process 30). The first DL reception includes at least one of an SPS-PDSCH and a periodic CSI-RS. In one embodiment, the communication device performs first DL reception (e.g., together with the network) on non-special symbols (e.g., DL symbols in the set of DL symbols) or special symbols (different or the same as the special symbols in process 30). Furthermore, the first DL reception is performed in a non-special symbol in response to an indicator (different from the indicator in process 30) indicated by a signal other than the DCI (e.g., an RRC signal). The first DL reception is performed in a special symbol in response to an indicator (different from the indicator in process 30) indicated by the DCI.

[0043] In one embodiment, the communication device performs (e.g., together with the network) a first UL transmission in a special symbol in response to an indicator indicated by the DCI. In one embodiment, the first UL transmission includes at least one of a PUSCH scheduled / triggered by the DCI, a PUCCH carrying a HARQ-ACK scheduled / triggered by the DCI, and an SRS triggered by the DCI. In one embodiment, the communication device does not perform (e.g., together with the network) a first UL transmission in a special symbol in response to an indicator not indicated by the DCI. In one embodiment, the first UL transmission includes at least one of a PUCCH (e.g., carrying an SR and / or CSI) and a periodic SRS. In one embodiment, the first UL transmission is transmitted without at least one repetition.

[0044] In one embodiment, the communication device performs the first UL transmission (e.g., together with the network) in a special symbol in response to the first UL transmission including the third set of UCIs. That is, the communication device may determine UL resources for the first UL transmission according to the first configuration and the second configuration (e.g., when the first UL transmission includes the third set of UCIs). In one embodiment, the communication device does not perform the first UL transmission (e.g., together with the network) in a special symbol in response to the first UL transmission including the fourth set of UCIs. In one embodiment, the third set of UCIs includes at least one of HARQ-ACK, SR, L1-RSRP, and L1-SINR. In one embodiment, the fourth set of UCIs includes at least one of CQI, PMI, and RI. That is, the communication device may determine UL resources for the first UL transmission according to the first configuration (e.g., when the first UL transmission includes the fourth set of UCIs).

[0045] In one embodiment, the communication device performs (e.g., with the network) the first DL reception on a special symbol (different or the same as the special symbol in process 30) in the set of special symbols in response to the first DL reception not overlapping with at least one UL subband. In one embodiment, the communication device performs (e.g., with the network) the first DL reception on a special symbol (different or the same as the special symbol in process 30) in the set of special symbols in response to the first DL reception overlapping with at least one UL subband.

[0046] In one embodiment, the communication device is configured with time information. In one embodiment, the time information indicates whether at least one resource is available for the first UL transmission. In one embodiment, the resource of the at least one resource includes (e.g., is a slot), a radio frame, a slot, a special slot, or a slot including at least one special symbol. In one embodiment, the time information includes (e.g., is a bitmap). In one embodiment, at least one bit in the bitmap corresponds to at least one resource. In one embodiment, a bit having a third value in the bitmap indicates that the first UL transmission is available to be performed on the corresponding resource. In one embodiment, a bit having a fourth value in the bitmap indicates that the first UL transmission is not available to be performed on the corresponding resource. In one embodiment, the third value is, but is not limited to, "1." In one embodiment, the fourth value is, but is not limited to, "0." In one embodiment, the communication device performs (e.g., together with the network) the first UL transmission on the special symbol in response to a bit in the bitmap corresponding to the special symbol having the third value. In one embodiment, the communication device is configured to not perform the first UL transmission (e.g., with the network) at the special symbol in response to a bit in the bitmap corresponding to the special symbol being a fourth value. In one embodiment, the time information is configured for at least one of the communication device, the BWP, the UL channel, and the UL signal.

[0047] In one embodiment, in response to a first UL transmission that overlaps in time with a special symbol in the set of special symbols, the communication device determines (e.g., together with the network) whether to perform the first UL transmission according to at least one of an ID of the communication device, an index of the slot including the special symbol, and at least one parameter. In one embodiment, one of the at least one parameter is set by at least one of a communication device-specific parameter, a BWP-specific parameter, and a higher layer signal (e.g., an RRC signal). In one embodiment, the communication device performs (e.g., together with the network) the first UL transmission at the special symbol in response to equation (Equation 1) being satisfied. Equation (Equation 1) can be expressed as follows: mod(ID CD +N,P)=K (Formula 1) In the formula, ID CD where P is an ID of the communication device, N is an index of the slot including the special symbol, and P and K are parameters set by at least one of a communication device-specific parameter, a BWP-specific parameter, and a higher layer signal (e.g., an RRC signal). In one embodiment, in response to equation (1) not being satisfied, the communication device (e.g., together with the network) does not perform the first UL transmission in the special symbol. That is, whether the UL transmission is transmitted in the special symbol is determined according to the time domain information.

[0048] In one embodiment, in response to the indicator indicated by the DCI, the communication device does not expect to perform a first UL transmission in which the first priority indicator has a second value in the special symbol. In one embodiment, in response to the indicator indicated by the DCI, the communication device does not expect the first UL transmission in which the first priority indicator has a first value to overlap with at least one DL subband. In one embodiment, the HARQ-ACK included in the first UL transmission is dropped in response to the first UL transmission overlapping with the special symbol or at least one DL subband. In one embodiment, the communication device transmits the dropped HARQ-ACK in the first slot after the special symbol when the network triggers HARQ-ACK feedback (e.g., Type 3 HARQ-ACK feedback) or configures HARQ-ACK deferral. In one embodiment, the first slot is selected by the network via the DCI. In one embodiment, a slot (e.g., the first slot) includes multiple symbols (e.g., multiple consecutive symbols).

[0049] In one embodiment, the first DL reception has a priority that is lower than or equal to the priority of the first UL transmission having the first priority indicator with the second value. In one embodiment, the first DL reception includes an RS (e.g., a CSI-RS or a Positioning Reference Signal (PRS)). In one embodiment, the first DL reception corresponds to a first Search Space (SS) set. The first SS set includes at least one of a Common SS (CSS) set (e.g., a Type 3-PDCCH CSS set) and a UE-specific SS (USS) set. In one embodiment, the first DL reception includes a PDSCH scheduled by DCI from the first SS set.

[0050] In one embodiment, the first DL reception has a priority that is higher than or equal to the priority of the first UL transmission having the first priority indicator with a first value. In one embodiment, the first DL reception corresponds to a second SS set. The second SS set includes at least one CSS set. The at least one CSS set includes at least one of a Type 0-PDCCH CSS set, a Type 1-PDCCH CSS set, a Type 2-PDCCH CSS set, a 0A-PDCCH CSS set, a 0B-PDCCH CSS set, a 1A-PDCCH CSS set, and a 2A-PDCCH CSS set. In one embodiment, the first DL reception includes a PDSCH scheduled by DCI from the second SS set. In one embodiment, the DL reception includes a synchronization signal and a physical broadcast channel (SS / PBCH) block.

[0051] In one embodiment, the first DL reception including the PDSCH has a higher priority than the second DL reception in response to the first UL transmission having a first priority index that is a first value that includes a HARQ-ACK corresponding to the PDSCH. In one embodiment, the first DL reception including the PDSCH has a lower priority than the second DL reception in response to the first UL transmission having a first priority index that is a second value that includes a HARQ-ACK corresponding to the PDSCH.

[0052] In one embodiment, the communication device determines UL resources (e.g., in at least one UL subband) according to at least one of a first resource configuration and a starting PRB. In one embodiment, the communication device performs (e.g., together with a network) a first UL transmission (or a second / third UL transmission) on UL resources in a special symbol. The first UL transmission corresponds to a first priority indicator being a first value or a second value. In one embodiment, a first number of PRBs in the UL resources is equal to a second number of PRBs in the first UL transmission that overlap with UL symbols in the set of UL symbols. In one embodiment, the starting PRB is determined according to at least one of an offset, an indicator, the first resource configuration, DCI, and a higher layer signal (e.g., an RRC signal). In one embodiment, the offset indicates a set of frequency domain resources (e.g., the number of at least one PRB). In one embodiment, the offset is selected from a set of candidate offsets configured by the higher layer signal. In one embodiment, the offset is a specific offset value for the first UL transmission configured by the higher layer signal. In one embodiment, the resource configuration is configured for the first UL transmission. In one embodiment, the starting PRB is indicated for the first UL transmission. In one embodiment, the starting PRB is indicated for the first UL transmission transmitted in at least one special symbol. In one embodiment, the starting PRB is specific to the at least one special symbol. In one embodiment, the first UL transmission is a PUCCH or a PUSCH.

[0053] In one embodiment, the communication device performs (e.g., together with a network) a first UL transmission in the special symbol over a portion of the resources for the first UL transmission in the at least one UL subband in response to resources overlapping with at least one DL subband in the special symbol. The first UL transmission corresponds to the first priority indicator being a first value or a second value. That is, the first UL transmission is not performed over a remaining portion of the resources for the first UL transmission in the at least one DL subband. In one embodiment, when a first PRB of the resources for the first UL transmission overlaps with at least one DL subband, the communication device determines the first PRB for performing the first UL transmission as the first PRB of the at least one UL subband. In one embodiment, when a last PRB of the resources for the first UL transmission overlaps with at least one DL subband, the communication device determines the last PRB for performing the first UL transmission as the last PRB of the at least one UL subband.

[0054] In one embodiment, the communication device determines UL resources for a first UL transmission in the special symbol according to a second resource configuration. In one embodiment, the communication device determines UL resources for the first UL transmission in the special symbol according to the second resource configuration and a third resource configuration. In one embodiment, the communication device determines UL resources for the first UL transmission in the special symbol according to the second resource configuration, and then performs the first UL transmission (e.g., together with a network) via the UL resources. In one embodiment, the second resource configuration is associated with a fourth priority index that is a first value. In one embodiment, the third resource configuration is associated with a fifth priority index that is a second value. In one embodiment, the second resource configuration includes a first list of a first plurality of UL resources for the special symbol. In one embodiment, the first plurality of UL resources includes a first plurality of PUCCH resources (e.g., the first plurality of PUCCH resources). In one embodiment, the third resource configuration includes a second list of a second plurality of UL resources for the special symbol. In one embodiment, the second plurality of UL resources includes (e.g., is) a second plurality of PUCCH resources. In one embodiment, each resource of the first plurality of UL resources and the second plurality of UL resources is configured with at least one of a resource ID and a payload size.

[0055] In one embodiment, the communication device determines an UL resource for the first UL transmission in the special symbol according to a first payload size of the first UL transmission. In one embodiment, the communication device determines an UL resource for the first UL transmission in the special symbol according to the first payload size of the first UL transmission, and then performs the first UL transmission (e.g., together with a network) via the UL resource. In one embodiment, the UL resource is selected from a third plurality of UL resources. In one embodiment, at least one UL resource of the third plurality of UL resources is associated with a second payload size. In one embodiment, the first UL transmission includes more than one UCI type. In one embodiment, the communication device determines an UL resource for the first UL transmission in the special symbol according to the first payload size of the first UL transmission and a plurality of maximum payload sizes of the third plurality of UL resources. In one embodiment, the plurality of maximum payload sizes is indicated by a third list of the third plurality of UL resources.

[0056] In one embodiment, the communication device performs (and / or determines whether to perform) the first UL transmission according to multiple factors described in the previous embodiment, such as, for example, the communication device (e.g., together with the network) determines whether to perform the first UL transmission according to, but not limited to, the first priority index of the first PUCCH included in the first UL transmission and the trigger type of the indicator.

[0057] In one embodiment, the communication device receives from the network an indicator of a fourth UL transmission in the BWP of the serving cell (different from the indicator in process 30). In one embodiment, the communication device performs (e.g., together with the network) the fourth UL transmission according to the first resource configuration in response to the fourth UL transmission overlapping (e.g., completely) with an UL symbol (or at least one UL symbol) in the set of UL symbols. In one embodiment, the communication device determines (e.g., together with the network) whether to perform the fourth UL transmission in response to the fourth UL transmission overlapping (e.g., completely) in time with a special symbol (or at least one special symbol) in the set of special symbols. For an example of the fourth UL transmission, reference may be made to the above example of the first UL transmission, and description thereof will be omitted here.

[0058] In one embodiment, the communication device performs (and / or decides whether to perform) multiple UL transmissions according to different factors described in the previous embodiments, for example, the communication device determines (e.g., together with the network) whether to perform the first UL transmission according to a first priority indicator of a first PUCCH included in the first UL transmission, and determines (e.g., together with the network) whether to perform the fourth UL transmission according to at least one of, but not limited to, the ID of the communication device, the index of the slot including the special symbol, and at least one parameter.

[0059] In one embodiment, the first value has a higher priority than the second value. In one embodiment, the first value is, but is not limited to, "1." In one embodiment, the second value is, but is not limited to, "0."

[0060] FIG. 4 is a schematic diagram of communication 40 between a communication device and a network according to one embodiment of the present disclosure. The communication device receives an UL-DL configuration and a special resource configuration from a network (not shown in FIG. 4). The UL-DL configuration and the special resource configuration may be the first and second configurations, respectively, in process 30, and indicate the type (e.g., direction) of slots 0 to 9 in a frame (e.g., frame 42 or frame 44). The UL-DL configuration indicates that slots 0 to 3 are DL slots, slots 4 to 5 are flexible slots, and slots 6 to 9 are UL slots. The special resource configuration indicates that slots 2 to 5 are special slots. The UL slots, DL slots, flexible slots, and special slots are represented as "U," "D," "F," and "S," respectively. The communication device determines the type of slots 0 to 9 of the frame according to the UL-DL configuration. The determined frame is represented as frame 42. Then, the communication device re-determines slots 2 to 5 as special slots according to the special resource configuration. The re-determined frame is represented as frame 44.

[0061] Because slots 0-1 of frame 44 are UL slots, the communication device does not perform networking with a high priority (HP) UL transmission HP_UL (e.g., a first UL transmission including a first PUCCH whose first priority indicator has a first value) and a low priority (LP) UL transmission LP_UL (e.g., a first UL transmission including a first PUCCH whose first priority indicator has a second value) in slots 0-1 of frame 44. In slots 2-5 of frame 44, the communication device may perform networking with the HP UL transmission HP_UL, but does not perform networking with the LP UL transmission LP_UL in response to the LP UL transmission LP_UL having a low priority. Because slots 6-9 are UL slots, the communication device may perform networking with the HP UL transmission HP_UL and / or the LP UL transmission LP_UL in slots 6-9 of frame 44. That is, UL transmission may be performed in slots 2-9 of frame 44.

[0062] It should be noted that even if the communication device is configured to multiplex UCIs corresponding to HP UL transmission HP_UL and LP UL transmission LP_UL, the HP UL transmission HP_UL and LP UL transmission LP_UL are not multiplexed in slots 2 to 5 of frame 44. In Figure 4, the HP UL transmission HP_UL and LP UL transmission LP_UL in slots 1, 3, 5, 7 and 9 of frame 44 are not shown for simplicity.

[0063] FIG. 5 is a schematic diagram of communication 50 between a communication device and a network according to an embodiment of the present disclosure. Frames 52 and 54 each include slots 0 to 9. Frames 52 and 54 may refer to frames 42 and 44 in FIG. 4, and for brevity, their description will be omitted. The communication device expects to perform DL reception DL0 including a PDSCH with the network in slot 1 of frame 54, and to perform LP UL transmission LP_UL including a LP UCI corresponding to the PDSCH with the network in slot 4 of frame 54. For example, in response to the dropped LP UL transmission LP_UL, the communication device may not perform LP UL transmission LP_UL with the network in slot 4 of frame 54 and postpone transmission of LP UL transmission LP_UL in slot 5 of frame 54. In response to the LP UL transmission LP_UL overlapping with the HP UL transmission HP_UL0 in slot 5 of frame 54, the communication device does not execute the LP UL transmission LP_UL and network in slot 5 of frame 54, and multiplexes the LP UCI in the LP UL transmission LP_UL and at least one HP UCI in the HP UL transmission HP_UL0 into the HP UL transmission HP_UL1. The communication device executes the HP UL transmission HP_UL1 with the UCI multiplexed therein in slot 5 of frame 54.

[0064] FIG. 6 is a schematic diagram of communication 60 between a communication device and a network according to an embodiment of the present disclosure. Frames 62 and 64 include slots 0 through 9, respectively. Frames 62 and 64 may refer to frames 42 and 44 in FIG. 4, and are not described here for brevity. Because slots 0 through 1 of frame 64 are UL slots, the communication device does not perform networking with the HP UL transmission HP_UL and the LP UL transmission LP_UL in slots 0 through 1 of frame 64. In slots 2 through 3 of frame 64, the communication device may perform networking with the HP UL transmission HP_UL, but does not perform networking with the LP UL transmission LP_UL in response to slots 2 through 3 being configured as DL slots according to the UL-DL configuration. In slots 4 through 5 of frame 64, the communication device may perform networking with the HP UL transmission HP_UL and / or the LP UL transmission LP_UL in response to slots 4 through 5 being configured as flexible slots according to the UL-DL configuration and being flexible slots indicated as UL slots in the DCI. Since slots 6 to 9 of frame 64 are UL slots, the communication device may perform HP UL transmission HP_UL and / or LP UL transmission LP_UL and network transmission in slots 6 to 9 of frame 64. That is, UL transmission may be performed in slots 2 to 9 of frame 64.

[0065] In FIG. 6, the HP UL transmission HP_UL and the LP UL transmission LP_UL in slots 1, 3, 5, 7 and 9 of frame 64 are not shown for simplicity.

[0066] FIG. 7 is a schematic diagram of communication 70 between a communication device and a network according to an embodiment of the present disclosure. Frames 72 and 74 include slots 0 to 9, respectively. Frames 72 and 74 may refer to frames 42 and 44 in FIG. 4, and for brevity, their description will be omitted here. UL transmission UL0 is a periodic transmission and is scheduled / configured by a high-layer signal (e.g., an RRC signal). The communication device expects to transmit UL transmission UL0 in slots 0, 2, 4, 6, and 8. Because UL transmission UL0 is not performed in a DL slot, the communication device does not perform UL transmission UL0 and network in slot 0 of frame 74. In response to UL transmission UL0 not scheduled / configured by DCI in slots 2 and 4 of frame 74, the communication device does not perform UL transmission UL0 and network. Because slots 6 to 9 are UL slots, the communication device performs UL transmission UL0 and network in slots 6 and 8 of frame 74. It should be noted that in response to UL transmission UL0 in slots 2 and / or 4 of frame 72 scheduled / triggered by DCI, the communication device may multiplex the UCI of UL transmission UL0 in slots 2 and / or 4 of frame 72 with the UCI of the HP UL transmission (not shown in FIG. 7).

[0067] FIG. 8 is a schematic diagram of communication 80 between a communication device and a network according to an embodiment of the present disclosure. Frames 82 and 84 each include slots 0 to 9. Frames 82 and 84 may refer to frames 42 and 44 in FIG. 4, and will not be described here for brevity. The communication device receives DCI DCI0 from the network in slot 0 of frame 84. Then, the communication device performs DL reception DL0 including a PDSCH with the network in slot 1 of frame 84 in accordance with DCI DCI0, and expects UL transmission UL0 including UCI corresponding to the PDSCH with the network in slot 4 of frame 84 in accordance with DCI DCI0. In response to UL transmission UL0 scheduled by DCI DCI0, the communication device performs UL transmission UL0 in slot 4 of frame 84.

[0068] 9 is a schematic diagram of two special symbols 90 and 92 according to one embodiment of the present disclosure. The special symbols 90 and 92 each include DL subbands 900 and 910 and an UL subband 920. UL transmission UL0 is scheduled to occur in the special symbol 90 and does not overlap with the DL subbands 900 and 910. Thus, a communication device may perform UL transmission UL0 and networking in the special symbol 90. UL transmission UL1 is scheduled to occur in the special symbol 92 and overlaps with the DL subband 900. Thus, a communication device may not perform UL transmission UL1 and networking in the special symbol 92. In one embodiment, the term "two special symbols 90 and 92" can be replaced with "two special slots 90 and 92."

[0069] FIG. 10 is a schematic diagram of communication 100 between a communication device and a network according to one embodiment of the present disclosure. A UL symbol 102 and a special symbol 104 are shown in FIG. 10. The special symbol 104 includes DL subbands 1000 and 1010 and a UL subband 1020. The communication device receives an offset in a DCI or higher layer signal from the network (not shown in FIG. 10). The offset indicates the number of PRBs by which to shift the UL transmission UL0. The communication device may implement the UL transmission UL0 and the network in the UL symbol 102 and / or the UL transmission UL0 and the network in the special symbol 104 by shifting the UL transmission UL0 according to the offset to avoid overlapping of the UL transmission UL0 with the DL subband 1010 in the special symbol 104. In one embodiment, the terms "UL symbol 102" and "special symbol 104" may be replaced with "UL slot 102" and "special slot 104," respectively.

[0070] FIG. 11 is a schematic diagram of communication 110 between a communication device and a network according to one embodiment of the present disclosure. Three UL symbols 112, 114, and 116 and three special symbols 113, 115, and 117 are shown. The special symbols 113, 115, and 117 include DL subbands 1100 and 1110 and UL subband 1120, respectively. In one embodiment, the communication device may implement UL transmission UL0 and network in UL symbol 112 and / or implement UL transmission UL0_P and network in special symbol 113. UL transmission UL0_P is the portion of UL transmission UL0 that does not overlap with DL subbands 1100 and 1110 in special symbol 113. In one embodiment, the communication device may implement UL transmission UL1 and network in UL symbol 114 and / or implement UL transmission UL1_P and network in special symbol 115. UL transmission UL1_P is the portion of UL transmission UL1 that does not overlap with DL subbands 1100, 1110 in special symbol 115. In one embodiment, the communication device may implement UL transmission UL2 and network in UL symbol 116 and / or implement UL transmission UL2_P and network in special symbol 117. UL transmission UL2_P is the portion of UL transmission UL2 that does not overlap with DL subbands 1100, 1110 in special symbol 117. That is, the communication device drops the portion of the UL transmission that overlaps with DL subbands in the special symbol. In one embodiment, the terms "three UL symbols 112, 114, and 116" and "three special symbols 113, 115, and 117" can be replaced with "three UL slots 112, 114, and 116" and "three special slots 113, 115, and 117," respectively.

[0071] 12 is a flowchart of a process 120 according to one embodiment of the present disclosure. The process 120 may be utilized in a communication device (e.g., the communication device 14 of FIG. 1 or the communication device 20 of FIG. 2) to determine an UL resource (e.g., at least one UL subband) in a special symbol for performing an UL transmission. The process 120 may be compiled into the program code 214 and includes the following steps:

[0072] Step 1200 starts.

[0073] In step 1202, whether the UL transmission is triggered by the DCI or an indicator of the UL transmission indicated by the DCI? If yes, execute step 1204. If not, execute step 1206.

[0074] In step 1204, determine the UL resource in the special symbol according to the DCI, and then perform step 1212.

[0075] In step 1206, does the UL transmission contain multiple UCI types? If yes, execute step 1208. If not, execute step 1210.

[0076] In step 1208, determine the UL resource in the special symbol according to the payload size of the UL transmission, and execute step 1212.

[0077] In step 1210, the UL resource in the special symbol is determined according to the higher layer configuration (eg, RRC configuration).

[0078] In step 1212, the process ends.

[0079] In one embodiment, the indicator in process 120 may be an indicator in process 30. In one embodiment, the UL transmission in process 120 may be a first UL transmission in process 30 corresponding to the first priority indicator being a first value or a second value. In one embodiment, the higher layer configuration (e.g., RRC configuration) in process 120 may be a third configuration in the embodiment of process 30. In one embodiment, the payload size of the UL transmission in process 120 may be a first payload size of the UL transmission in the embodiment of process 30. In one embodiment, the multiple UCI types include, but are not limited to, at least one of HARQ-ACK, CSI, RS, SRS, L1-RSRP, L1-SINR, CQI, PMI, and RI. In one embodiment, the UL transmission is indicated by a special symbol offset by at least one of DCI or higher layer configuration.

[0080] 13 is a flowchart of a process 130 according to one embodiment of the present disclosure. The process 130 may be utilized in a communication device (e.g., the communication device 14 of FIG. 1 or the communication device 20 of FIG. 2) to determine an UL resource (e.g., at least one UL subband) in a special symbol for performing an UL transmission. The process 130 may be compiled into the program code 214 and includes the following steps:

[0081] Step 1300 starts.

[0082] In step 1302, whether the UL transmission is triggered by the DCI or an indicator of the UL transmission indicated by the DCI? If yes, execute step 1304. If not, execute step 1306.

[0083] In step 1304, the UL resource in the special symbol is determined according to the DCI, and step 1308 is executed.

[0084] In step 1306, determine the UL resource in the special symbol according to the payload size of the UL transmission.

[0085] Step 1308 ends the process.

[0086] In one embodiment, the indicator in process 130 may be the indicator in process 30. In one embodiment, the UL transmission in process 130 may be the first UL transmission in process 30 corresponding to the first priority indicator being the first value or the second value. In one embodiment, the payload size of the UL transmission in process 130 may be the first payload size of the UL transmission in the embodiment of process 30. In one embodiment, the UL transmission is indicated by a special symbol offset by at least one of DCI or higher layer configuration.

[0087] 14 is a flowchart of a process 140 according to one embodiment of the present disclosure. The process 140 may be utilized in a communication device (e.g., the network 12 of FIG. 1 or the communication device 20 of FIG. 2) to handle communication with a serving cell. The process 140 may be compiled into the program code 214 and includes the following steps:

[0088] Step 1400 starts.

[0089] Step 1402 transmits a first configuration to the communication device indicating at least one of a set of DL symbols, a set of flexible symbols, and a set of UL symbols for a time period.

[0090] In step 1404, a second configuration of the serving cell is sent to the communication device, the second configuration indicating a set of special symbols in at least one of the set of DL symbols and the set of flexible symbols, the set of special symbols including at least one DL subband and at least one UL subband in different frequency regions of the serving cell.

[0091] Step 1406 includes transmitting an indicator of a first UL transmission in the BWP of the serving cell corresponding to the first priority indicator to the communication device.

[0092] In step 1408, the first resource configuration is sent to the communication device.

[0093] In step 1410, the process ends.

[0094] According to process 140, the network transmits a first configuration (e.g., TDD-UL-DL-ConfigCommon) to the communication device. The first configuration indicates at least one of a DL symbol set, a flexible symbol set, and a UL symbol set (e.g., at least one symbol or radio frame) for a certain time period. Then, the network transmits a second configuration of the serving cell to the communication device. The second configuration indicates a special symbol set in at least one of the DL symbol set and the flexible symbol set, where the special symbol set includes at least one DL subband and at least one UL subband in different frequency regions of the serving cell. The network transmits an indicator of a first UL transmission in the BWP of the serving cell to the communication device. The first UL transmission corresponds to a first priority indicator. The network transmits a first resource configuration to the communication device. The first resource configuration enables the communication device to perform (e.g., together with the network) a first UL transmission in response to the first UL transmission overlapping with a UL symbol in the UL symbol set. That is, the special symbol includes an UL resource (e.g., at least one UL subband), and the first UL transmission may be performed in the UL resource of the special symbol, thereby enhancing UL coverage and reducing transmission delay.

[0095] The implementation of the process 140 is not limited to the above description. To implement the process 140, the following embodiments may be applied.

[0096] In one embodiment, the first UL transmission includes at least one of a PUCCH, a PUSCH, an SRS, and a PRACH. In one embodiment, the first UL transmission is indicated / configured / transmitted without at least one repetition. In one embodiment, the indicator is received via a DCI or a radio resource control (RRC) signal. In one embodiment, the first resource configuration is indicated by an indicator or an RRC signal. In one embodiment, each subband of the at least one DL subband and the at least one UL subband includes at least one PRB.

[0097] In one embodiment, a BWP is a (e.g., contiguous) set of PRBs on a carrier. In one embodiment, a communication device is configured with multiple BWPs (e.g., four BWPs). At any given time, a first BWP of the multiple BWPs is active for the UL and a second BWP of the multiple BWPs is active for the DL. In one embodiment, one of the multiple BWPs overlaps with at least one DL subband and at least one UL subband in at least one special symbol. In one embodiment, one of the multiple BWPs overlaps with at least one DL subband or at least one UL subband in at least one special symbol. In one embodiment, each BWP defined for a numerology has at least one of a different subcarrier spacing, symbol duration, and CP length.

[0098] In one embodiment, the network transmits a third configuration to the communication device. In one embodiment, the third configuration includes first power information and second power information for the first UL transmission. In one embodiment, the first power information and second power information correspond to an UL symbol and a special symbol in a set of special symbols, respectively. In one embodiment, the first power information includes at least one first parameter (e.g., closedLoopIndex, p0-PUCCH-Id, and / or PathlossReferenceRS-Id). In one embodiment, the second power information includes at least one second parameter (e.g., closedLoopIndex, p0-PUCCH-Id, and / or PathlossReferenceRS-Id).

[0099] In one embodiment, the third configuration includes first spatial relationship information and second spatial relationship information of the first UL transmission. In one embodiment, the first spatial relationship information and second spatial relationship information correspond to UL symbols and special symbols, respectively. In one embodiment, the first spatial relationship information includes a first spatial relationship information ID. In one embodiment, the second spatial relationship information includes a second spatial relationship information ID. In one embodiment, the third configuration includes a first code rate and a second code rate of the first UL transmission. In one embodiment, the first code rate and the second code rate correspond to UL symbols and special symbols, respectively.

[0100] An embodiment of process 30 may also be applied to process 140, and will not be described here for the sake of brevity.

[0101] The operation "determining" above can be replaced with the operations "calculating," "calculating," "obtaining," "generating," "outputting," "using," "selecting / selecting," "judging," or "configured to." The operation "detecting" above can be replaced with the operations "monitoring," "receiving," "sensing," or "obtaining." The phrase "according to" above can be replaced with "in response to." The phrase "associated with" above can be replaced with "of" or "corresponding to." The term "via" above can be replaced with "on," "in," or "at." The term "when" or "when" above can be replaced with "in response to." The term "special symbol" can be replaced with "Subband Non-Overlapping Full Duplex (SBFD) symbol." The terms "set of DL symbols," "set of flexible symbols," "set of special symbols," and "set of UL symbols" can be replaced with "set of DL slots," "set of flexible slots," "set of special slots," and "set of UL slots," respectively. The terms "DL symbol", "flexible symbol", "special symbol", and "UL symbol" may be replaced with "DL slot", "flexible slot", "special slot", and "UL slot", respectively. The term "DCI" may be replaced with "DCI format" or "PDCCH". The term "first UL transmission" may be replaced with "second UL transmission" or "third UL transmission".

[0102] Those skilled in the art will easily make combinations, modifications, and / or alterations to the above-described descriptions and examples. The above-described descriptions, steps, and / or processes, including the suggested steps, can be realized by means that may be hardware, software, firmware (also known as a combination of a hardware device and computer instructions and data residing as read-only software on a hardware device), an electronic system, or a combination thereof. An example of the means may be a communication device.

[0103] Examples of hardware may include analog circuitry, digital circuitry, and / or mixed circuitry. For example, the hardware may include an ASIC, a field programmable gate array (FPGA), a programmable logic device, combined hardware components, or a combination thereof. In another example, the hardware may include a general-purpose processor, a microprocessor, a controller, a digital signal processor (DSP), or a combination thereof.

[0104] Examples of software may include a set of code, a set of instructions, and / or a set of functions that are retained (e.g., stored) on a storage unit, e.g., a computer-readable medium. The computer-readable medium may include a SIM, a ROM, a flash memory, a RAM, a CD-ROM / DVD-ROM / BD-ROM, a magnetic tape, a hard disk, an optical data storage device, a non-volatile storage unit, or a combination thereof. The computer-readable medium (e.g., a storage unit) may be internally (e.g., integrated) or externally (e.g., separate) coupled 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, the set of instructions, and / or the set of functions may cause at least one processor, module, hardware, and / or electronic system to perform associated steps.

[0105] Examples of electronic systems may include a system on a chip (SoC), a system in a package (SiP), a computer on a module (CoM), a computer program product, a device, a mobile phone, a laptop, a tablet computer, an e-book or a portable computer system and a communication device 20.

[0106] In summary, embodiments of the present disclosure provide a method and a communication device for processing communication with a serving cell. The communication device is configured with a set of special symbols of a BWP of the serving cell. The special symbols include both UL resources (e.g., at least one UL subband) and DL resources (e.g., at least one DL subband). UL transmission may be performed in the UL resources of the special symbols, and DL reception may be performed in the DL resources of the special symbols. Therefore, UL / DL coverage is enhanced and transmission delay is reduced.

[0107] Those skilled in the art will readily appreciate that numerous modifications and variations of the apparatus and method may be made while retaining the teachings of the present invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.

Claims

1. 1. A method for handling communications with a serving cell of a communication device, comprising: receiving a first configuration from a network indicating at least one of a set of downlink (DL) symbols, a set of flexible symbols, and a set of uplink (UL) symbols for a time period; receiving a second configuration of the serving cell from the network, the second configuration indicating a set of special symbols in at least one of the set of DL symbols and the set of flexible symbols, the set of special symbols including at least one DL subband and at least one UL subband in different frequency regions of the serving cell; receiving from the network an indicator of a first UL transmission in a bandwidth portion (BWP) of the serving cell, the indicator corresponding to a first priority indicator; performing the first UL transmission according to a first resource configuration in response to the first UL transmission overlapping with an UL symbol in the set of UL symbols; determining whether to perform the first UL transmission in response to the first UL transmission overlapping in time with a special symbol in the set of special symbols; determining an UL resource for the first UL transmission in the special symbol according to a first payload size of the first UL transmission, wherein the UL resource is selected from a plurality of UL resources; performing the first UL transmission over the UL resource; A method comprising:

2. The first UL transmission the first UL transmission includes at least one of a physical UL control channel (PUCCH), a physical UL shared channel (PUSCH), a sounding reference signal (SRS), and a physical random access channel (PRACH); and the first UL transmission is indicated without at least one repetition.

3. The method of claim 1 , wherein the indicator is received via DL control information (DCI) or radio resource control (RRC) signaling.

4. The method of claim 1 , wherein the first resource configuration is indicated by the indicator or an RRC signal.

5. performing the first UL transmission in the special symbol in response to the first UL transmission including a first PUCCH having the first priority indicator having a first value; 2. The method of claim 1, further comprising: in response to the first UL transmission including a first PUCCH having the first priority indicator of a second value, not performing the first UL transmission in the special symbol.

6. The method of claim 1 , further comprising: not performing the first UL transmission in the special symbol in response to the indicator not being indicated by the DCI.

7. 2. The method of claim 1, further comprising: in response to the first UL transmission not overlapping with at least one of the DL subbands, performing the first UL transmission in the special symbol.

8. 2. The method of claim 1, further comprising: in response to the first UL transmission overlapping with at least one of the DL subbands, preventing the first UL transmission from occurring in the special symbol.

9. The method of claim 1 , further comprising receiving a third configuration from the network.

10. The method of claim 9 , wherein the third configuration includes first power information and second power information for the first UL transmission, the first power information and the second power information corresponding to the UL symbol and the special symbol, respectively.

11. The method of claim 10 , further comprising: in response to the first UL transmission overlapping the UL symbol, determining a first transmit power of the first UL transmission according to the first power information.

12. The method of claim 10 , further comprising: in response to the first UL transmission overlapping the special symbol, determining a second transmit power of the first UL transmission according to the second power information.

13. 10. The method of claim 9, wherein the third configuration includes first spatial relationship information and second spatial relationship information of the first UL transmission, the first spatial relationship information and the second spatial relationship information corresponding to the UL symbol and the special symbol, respectively.

14. 14. The method of claim 13, further comprising: in response to the first UL transmission overlapping the UL symbol, determining a first spatial relationship of the first UL transmission according to the first spatial relationship information.

15. 14. The method of claim 13, further comprising: in response to the first UL transmission overlapping the special symbol, determining a second spatial relationship of the first UL transmission according to the second spatial relationship information.

16. and further comprising the step of: in response to a second UL transmission that overlaps in time with the first UL transmission, not performing the first UL transmission in the special symbol; The method of claim 1 , wherein the first UL transmission includes a first PUCCH with the first priority index having a second value, and the second UL transmission includes a second PUCCH with a second priority index having a first value.

17. The method of claim 16 , further comprising: performing the second UL transmission in the special symbol.

18. multiplexing a first UCI of the first PUCCH and a second UCI of the second PUCCH into a third PUCCH having a third priority index of the first value; and performing a third UL transmission including the third PUCCH.

19. 2. The method of claim 1, further comprising: in response to the special symbol being configured as a DL symbol in the set of DL symbols according to the first configuration, not performing the first UL transmission at the special symbol.

20. The first UL transmission a condition where the first UL transmission corresponds to the first priority indicator being a second value; the first UL transmission includes a first PUCCH carrying a Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) for a Semi-Persistent Scheduling Physical Downlink Shared Channel (SPS-PDSCH); and the first UL transmission includes a first PUCCH carrying channel state information (CSI).

21. 2. The method of claim 1, further comprising: in response to the special symbol being configured as a flexible symbol in the set of flexible symbols according to the first configuration, performing the first UL transmission on the special symbol.

22. The method of claim 21 , wherein the special symbol is indicated by the network as the UL resource.

23. performing the first UL transmission in the special symbol in response to the first UL transmission including a first set of UCI; 2. The method of claim 1, further comprising: in response to the first UL transmission including a second set of UCI, not performing the first UL transmission in the special symbol.

24. 24. The method of claim 23, wherein the first set of UCI includes at least one of a HARQ-ACK and a scheduling request (SR), or the second set of UCI includes CSI.

25. determining the UL resource according to at least one of the first resource configuration and a starting physical resource block (PRB); performing the first UL transmission on the UL resource in the special symbol; a first number of PRBs of the UL resource is equal to a second number of PRBs of the first UL transmission that overlap with UL symbols in the set of UL symbols; The method of claim 1 , wherein the starting PRB is determined according to at least one of an offset, the indicator, the first resource configuration, a DCI, and a higher layer signal, the offset indicating a set of frequency domain resources.

26. 2. The method of claim 1, further comprising: in response to resources in the special symbol overlapping with at least one of the DL subbands, performing the first UL transmission in the special symbol over a portion of the resources for the first UL transmission in at least one of the UL subbands.

27. The method of claim 1 , wherein at least one UL resource of the plurality of UL resources is associated with a second payload size.

28. The method of claim 1 , wherein the first UL transmission includes more than one UCI type.

29. 1. A communication device for handling communication with a serving cell, comprising: at least one storage device; and at least one processing circuit coupled to the at least one memory device, the at least one memory device configured to store instructions, the at least one processing circuit: instructions for receiving from a network a first configuration indicating at least one of a set of downlink (DL) symbols, a set of flexible symbols, and a set of uplink (UL) symbols for a time period; instructions for receiving from the network a second configuration of the serving cell, the second configuration indicating a set of special symbols in at least one of the DL symbol set and the flexible symbol set, the set of special symbols including at least one DL subband and at least one UL subband in different frequency regions of the serving cell; receiving from the network an indicator of a first UL transmission in a bandwidth portion (BWP) of the serving cell corresponding to a first priority indicator; instructions for performing the first UL transmission in accordance with a first resource configuration in response to the first UL transmission overlapping with an UL symbol in the set of UL symbols; instructions for determining whether to perform the first UL transmission in response to the first UL transmission overlapping in time with a special symbol in the set of special symbols; instructions for determining an UL resource for the first UL transmission in the special symbol according to a first payload size of the first UL transmission, the UL resource being selected from a plurality of UL resources; instructions for performing the first UL transmission over the UL resource; 10. A communication device configured to:

30. 1. A method for processing communications with a communication device over a network, comprising: transmitting a first configuration to the communication device indicating at least one of a set of downlink (DL) symbols, a set of flexible symbols, and a set of uplink (UL) symbols for a time period; transmitting a second configuration of a serving cell to the communication device, the second configuration indicating a set of special symbols in at least one of the set of DL symbols and the set of flexible symbols, the set of special symbols including at least one DL subband and at least one UL subband in different frequency regions of the serving cell; transmitting to the communication device an indicator of a first UL transmission in a bandwidth portion (BWP) of the serving cell corresponding to a first priority indicator; transmitting a first resource configuration to the communication device; performing the first UL transmission over UL resources on special symbols in the set of special symbols; Including, the first resource configuration enables the communication device to perform the first UL transmission in response to the first UL transmission overlapping with an UL symbol in the set of UL symbols; The UL resource is determined by the communication device according to a first payload size of the first UL transmission and is selected from a plurality of UL resources.

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