Communication method and device and computer readable storage medium

Abstract

A communication method and device, and a computer readable storage medium, the communication method comprising: acquiring first configuration information, the first configuration information being used for configuring a first time slot, the first time slot being a time slot for configuring sub-band full duplex; and in an inactive state or a connected state, performing uplink data transmission in the first time slot by using configuration authorization. By adopting the scheme, the terminal equipment can perform small data transmission in the time slot supporting full duplex of the sub-band in the inactive state.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular, to a communication method, a device, and a computer-readable storage medium. Background Art

[0002] In a New Radio (NR) system, to improve the transmission efficiency of small data, two sets of Small Data Transmission (SDT) mechanisms in the inactive state are introduced. One is Random Access-based SDT (RA-SDT), and the other is Configuration Grant-based SDT (CG-SDT). Through the above two SDT mechanisms, a terminal device is allowed to transmit data below a preset bit quantity threshold in the inactive state without the terminal device entering the connected state, thereby reducing signaling overhead and further reducing the power consumption of the terminal device.

[0003] In the prior art, SDT is only configured in the uplink time slot. That is, in the inactive state, through the uplink time slot, the terminal device can perform small data transmission. Summary of the Invention

[0004] An object of an embodiment of the present invention is to provide a communication method that can use configuration grant for data transmission in a time slot configured with sub-band full duplex.

[0005] In a first aspect, the present invention provides a communication method, including: obtaining first configuration information for configuring a first time slot, where the first time slot is a time slot configured with sub-band full duplex; in the inactive state or the connected state, using configuration grant for uplink data transmission in the first time slot.

[0006] The terminal device uses configuration grant for uplink data transmission in the first time slot configured with sub-band full duplex in the inactive state or the connected state. Thus, in the time slot configured with sub-band full duplex, uplink data transmission using configuration grant is achieved.

[0007] Optionally, the first configuration information further includes: a search space for detecting sub-band full duplex configuration information.

[0008] The network device can dynamically configure sub-band full duplex. The terminal device obtains the latest sub-band full duplex configuration information by detecting the search space, and further realizes using configuration grant for uplink data transmission in the first time slot.

[0009] Optionally, the first configuration information further includes: resource parameters for determining the uplink frequency domain resources using configuration grant.

[0010] The terminal device can determine the uplink frequency-domain resources using configured grants based on the resource parameters in the first configuration information. Thus, the network device can flexibly modify the frequency-band resources of sub-band full duplex, and the terminal device can correspondingly adjust the uplink frequency-domain resources used.

[0011] Optionally, the bandwidth of the uplink frequency-domain resources is associated with the frequency-band bandwidth of the activated sub-band full duplex, or the starting position of the uplink frequency-domain resources is associated with the frequency-band bandwidth of the activated sub-band full duplex, or the number of symbols occupied by the uplink frequency-domain resources is associated with the number of symbols occupied by the activated sub-band full duplex.

[0012] The terminal device determines the bandwidth of the uplink frequency-domain resources based on the frequency-band bandwidth of the activated sub-band full duplex; or, the terminal device determines the starting position of the uplink frequency-domain resources based on the frequency-band bandwidth of the activated sub-band full duplex; or, the terminal device determines the number of symbols occupied by the uplink frequency-domain resources based on the frequency-band bandwidth of the activated sub-band full duplex. Thus, based on the frequency-band bandwidth of the activated sub-band full duplex, the terminal device can adjust the uplink frequency-domain resources to achieve flexible configuration of the uplink frequency-domain resources.

[0013] Optionally, when the terminal device detects a configured grant in a normal uplink time slot and a configured grant in a first time slot, it uses the configured grant in the first time slot for uplink data transmission.

[0014] When both a configured grant in a normal uplink time slot and a configured grant in a first time slot are configured, the terminal device preferentially selects the configured grant in the first time slot for uplink data transmission. Thus, the terminal device can preferentially select the configured grant in the first time slot for small data transmission, and the configured grant in the normal uplink time slot can be used for the scheduling of other terminal devices, thereby improving resource utilization efficiency.

[0015] Optionally, the terminal device can also receive indication information for indicating to use the configured grant in the first time slot for uplink data transmission.

[0016] When both a configured grant in a normal uplink time slot and a configured grant in a first time slot are configured, the network device can instruct the terminal device to only select the configured grant in the first time slot for small data transmission, improving resource utilization efficiency.

[0017] Optionally, in the non-active state, the data volume of the data transmitted using the configured grant for uplink data is less than a preset bit data volume threshold.

[0018] When the terminal device is in the non-active state, the terminal device can use the configured grant for uplink data transmission in the first time slot, thereby achieving small data transmission in the time slot configured with sub-band full duplex.

[0019] Optionally, if the terminal device fails to obtain the first configuration information, the terminal device may use the configured grant in the normal uplink time slot for uplink data transmission.

[0020] If the terminal device fails to obtain the first configuration information, it may use the configured grant in the normal uplink time slot for uplink data transmission, which is compatible with the existing communication protocol.

[0021] Optionally, the terminal device may also obtain the second configuration information to determine the logical channel corresponding to the data transmitted using the configured grant in the first time slot.

[0022] The network device may configure a logical channel for the terminal device, and the logical channel may carry the data transmitted using the configured grant in the first time slot. The terminal device can determine which logical channel data to transmit using the configured grant in the first time slot. Thus, the network device can effectively schedule the data transmitted by the terminal device and reduce the interference existing in the process of uplink and downlink data transmission of the terminal device.

[0023] Optionally, no specific search space is configured in the first time slot; or, it is not necessary to listen for a random access response in the first time slot; or, the priority of the data transmitted through the configured grant in the first time slot is greater than or equal to a preset threshold; or, it is not necessary to receive downlink data scheduled by downlink control signaling including a priority indication in the first time slot; or, it is not necessary to apply a measurement gap in the first time slot, and the configured grant is used for uplink data transmission in the first time slot.

[0024] In a second aspect, the present invention provides another communication method, including: sending first configuration information, where the first configuration information is used to configure a first time slot, and the first time slot is a time slot for configuring subband full duplex; sending indication information, where the indication information indicates that the configured grant is used for uplink data transmission in the first time slot.

[0025] Optionally, the first configuration information further includes: a search space, where the search space is used to detect subband full duplex configuration information.

[0026] Optionally, the first configuration information further includes: resource parameters, where the resource parameters are used to determine the uplink frequency domain resources using the configured grant.

[0027] Optionally, the bandwidth of the uplink frequency domain resources is associated with the bandwidth of the activated subband full duplex frequency band, or the starting position of the uplink frequency domain resources is associated with the bandwidth of the activated subband full duplex frequency band, or the number of symbols occupied by the uplink frequency domain resources is associated with the number of symbols occupied by the activated subband full duplex.

[0028] In a third aspect, the present invention provides a communication device, including: an obtaining unit, configured to obtain first configuration information for configuring a first time slot, where the first time slot is a time slot for configuring sub-band full duplex; and a data transmission unit, configured to perform uplink data transmission using configured grant in the first time slot in an inactive state or a connected state.

[0029] In a fourth aspect, the present invention provides another communication device, including: a first sending unit, configured to send first configuration information for configuring a first time slot, where the first time slot is a time slot for configuring sub-band full duplex; and a second sending unit, configured to send indication information indicating that configured grant is used for uplink data transmission in the first time slot.

[0030] In a fifth aspect, the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and when the computer program is run by a processor, the steps of any one of the above communication methods are executed.

[0031] In a sixth aspect, the present invention further provides another communication device, including a memory and a processor, where a computer program that can run on the processor is stored on the memory, and when the processor runs the computer program, the steps of any one of the above communication methods are executed. Description of the Drawings

[0032] Figure 1 is a flowchart of a communication method in an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of an existing sub-band full duplex;

[0034] Figure 3 is a flowchart of another communication method in an embodiment of the present invention;

[0035] Figure 4 is a schematic structural diagram of a communication device in an embodiment of the present invention;

[0036] Figure 5 is a schematic structural diagram of another communication device in an embodiment of the present invention. Detailed Embodiments

[0037] As described in the above background art, the current small data transmission mechanism is only configured in the uplink time slot.

[0038] In an embodiment of the present invention, when the terminal device is in the inactive state or the connected state, in the first time slot configured with sub-band full duplex, configured grant is used for uplink data transmission. Thus, in the time slot configured with sub-band full duplex, uplink data transmission using configured grant is achieved.

[0039] To make the above objects, features, and beneficial effects of the present invention more obvious and understandable, the following detailed description of specific embodiments of the present invention will be given with reference to the accompanying drawings.

[0040] The terminal device described in the embodiments of this application is a device with wireless communication capabilities, and can also be referred to as a terminal, mobile station (MS), mobile terminal (MT), access terminal device, in-vehicle terminal device, industrial control terminal device, user equipment (UE), UE unit, UE station, mobile station, remote station, remote terminal device, mobile device, wireless communication device, UE agent, or UE device, etc. The UE can be fixed or mobile. It should be noted that the UE can support at least one wireless communication technology, such as LTE, NR, etc. Exemplarily, the UE can be a mobile phone, tablet (pad), desktop computer, laptop computer, all-in-one computer, in-vehicle terminal, virtual reality (VR) UE, augmented reality (AR) UE, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing devices connected to a wireless modem, wearable device, UE in a future mobile communication network, or UE in a future evolved public land mobile network (PLMN), etc. In some embodiments of this application, the UE can also be a device with transceiver capabilities, such as a chip system. Among them, the chip system can include a chip and can also include other discrete devices.

[0041] In the embodiments of the present application, a network device is a device that provides wireless communication functions for terminal devices, and can also be referred to as a radio access network (RAN) device, or an access network element, an access network device, etc. Among them, the network device can support at least one wireless communication technology, such as LTE, NR, etc. By way of example, the network device includes, but is not limited to: the next-generation base station (generation node B, gNB) in 5G, evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc. The network device can also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in the cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in future mobile communications or a network device in a future evolved PLMN, etc. In some embodiments, the network device can also be a device with the function of providing wireless communication for terminal devices, such as a chip system. By way of example, the chip system can include a chip and can also include other discrete devices.

[0042] In some embodiments, the network device can also communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks, etc.

[0043] Embodiments of the present invention provide a communication method, which will be described in detail through the following specific steps with reference to Figure 1 , as follows.

[0044] In a specific implementation, the communication method provided in the following steps 101 to 102 can be executed by a chip with data processing capabilities (such as a baseband chip) in the terminal device, or by a chip module with data processing capabilities in the terminal device, or by the terminal device. In the following embodiments, the communication method executed by the terminal device is taken as an example for illustration.

[0045] Step 101: Obtain first configuration information.

[0046] In a specific application, the terminal device accesses the primary cell (PCell), establishes a Radio Resource Control (RRC) connection, then establishes a data radio bearer for data transmission. After completing this data transmission, the network device to which the primary cell belongs (hereinafter simply referred to as the network device) can transfer the terminal device to the inactive state; or the network device can continue to maintain the terminal device in the connected state for possible subsequent data transmission.

[0047] In a specific implementation, the network device can configure Subband Full Duplex (SBFD), that is, configure in which time slots Subband Full Duplex can be used. Subband Full Duplex may mean that in a downlink time slot, some Physical Resource Blocks (PRBs) can be configured for uplink transmission.

[0048] Refer to Figure 2 , which shows a schematic diagram of an existing Subband Full Duplex. A downlink time slot can be divided into two downlink subbands D and one uplink subband U. The terminal device can perform uplink data transmission through the uplink subband.

[0049] In a specific implementation, after determining to maintain the terminal device in the connected state, the network device can configure the first configuration information for the terminal device and send the first configuration information to the terminal device. Or, when determining to transfer the terminal device to the inactive state, the network device can also configure the first configuration information for the terminal device and send the first configuration information to the terminal device. The first configuration information can be used to configure the first time slot, and the first time slot is the time slot configured with Subband Full Duplex.

[0050] Specifically, the network device can send the first configuration information to the terminal device through high-layer signaling (such as RRC signaling, MAC CE, etc.).

[0051] The terminal device can receive the first configuration information sent by the network device. The terminal device can determine the first time slot configured with Subband Full Duplex based on the first configuration information.

[0052] In a specific application, a network device can dynamically configure sub-band full duplex. In different time periods, the network device can configure different frequency band bandwidths for sub-band full duplex.

[0053] For example, in the first time period, if the network device configures 20 physical resource blocks for sub-band full duplex, then within the first time period, the frequency band bandwidth of the activated sub-band full duplex is 20 physical resource blocks.

[0054] In some embodiments, the first configuration information can also indicate the duration of the first time period. After the end of the first time period, if the terminal device does not receive new first configuration information, the terminal device considers that the first time slot of sub-band full duplex is no longer valid, that is, there is no activated first time slot of sub-band full duplex at this time.

[0055] Another example is that in the second time period, if the network device detects an increase in the uplink demand, it can configure 30 physical resource blocks for sub-band full duplex. Then, within the second time period, the network device can send the first configuration information again, indicating that the frequency band bandwidth of the activated sub-band full duplex is 30 physical resource blocks and the first time slot configured with sub-band full duplex. It should be noted that within the second time period, there can be one or more first time slots configured with sub-band full duplex, and the distribution of the first time slots can be clearly indicated through the first configuration information.

[0056] In another embodiment of the present invention, the network device can configure a search space for detecting the time slot where sub-band full duplex is located. The terminal device obtains the search space and detects the search space to obtain sub-band full duplex configuration information. The search space can be carried in the first configuration information. For example, when the network device transfers the terminal device to the inactive state, the first configuration information can be indicated through an RRC release signaling. The first configuration information carries the search space for detecting the time slot (i.e., the first time slot) where sub-band full duplex is located and the corresponding detection opportunity. After the terminal device enters the inactive state, it can detect the search space and obtain the first time slot (distribution) where sub-band full duplex is located in a timely manner through downlink control signaling.

[0057] It can be understood that the network device can also send the search space to the terminal device in the connected state through other configuration information, so that the terminal device in the connected state can also detect the first time slot (distribution) where sub-band full duplex is located in a timely manner.

[0058] In the embodiments of the present invention, the network device can also configure resource parameters. The terminal device can determine the uplink frequency domain resources using Configured Grant (CG) based on the resource parameters. The above resource parameters can be the frequency band bandwidth of the activated sub-band full duplex or the number of symbols occupied by the activated sub-band full duplex.

[0059] Specifically, the bandwidth of the uplink frequency-domain resource can be associated with the bandwidth of the frequency band of the activated sub-band full-duplex, so that the uplink resources in the sub-band full-duplex time slot can be fully utilized. Thus, the terminal device can determine the bandwidth of the uplink frequency-domain resource based on the bandwidth of the frequency band of the activated sub-band full-duplex. If the bandwidths of the activated sub-band full-duplex frequency bands are different, the bandwidths of the uplink frequency-domain resources can be different.

[0060] That is to say, the configuration authorization that the network device can configure for the terminal device can have at least two uplink frequency-domain resources with different bandwidths. Once the terminal device determines that the bandwidth of the activated sub-band full-duplex frequency band is large, the terminal device selects the corresponding uplink frequency-domain resource with a larger bandwidth as the available configuration authorization; if the terminal device determines that the bandwidth of the activated sub-band full-duplex frequency band is small, the terminal device selects the corresponding uplink frequency-domain resource with a smaller bandwidth as the available configuration authorization.

[0061] Alternatively, the starting position of the uplink frequency-domain resource can also be associated with the bandwidth of the activated sub-band full-duplex frequency band. Thus, the terminal device can determine the starting position of the uplink frequency-domain resource based on the bandwidth of the activated sub-band full-duplex frequency band. If the bandwidths of the activated sub-band full-duplex frequency bands are different, the starting positions of the uplink frequency-domain resources can be different. The starting position can be the position relative to the smallest physical resource block within the time slot, or the position relative to the smallest physical resource block within the frequency band configured as sub-band full-duplex.

[0062] Alternatively, the number of symbols occupied by the uplink frequency-domain resource can also be associated with the number of symbols occupied by the activated sub-band full-duplex. Thus, the terminal device can determine the number of symbols occupied by the uplink frequency-domain resource based on the number of symbols occupied by the activated sub-band full-duplex. If the numbers of symbols occupied by the activated sub-band full-duplex are different, the numbers of symbols occupied by the uplink frequency-domain resources can be different.

[0063] That is to say, the configuration authorization that the network device can configure for the terminal device can have at least two uplink frequency-domain resources with different numbers of occupied symbols. Once the terminal device determines that the number of symbols occupied by the activated sub-band full-duplex is small, the terminal device selects the corresponding uplink frequency-domain resource that occupies fewer symbols as the available configuration authorization; if the terminal device determines that the number of symbols occupied by the activated sub-band full-duplex is large, the terminal device selects the corresponding uplink frequency-domain resource that occupies more symbols as the available configuration authorization.

[0064] In the embodiments of the present invention, the above-mentioned "activated sub-band full-duplex" may refer to the sub-band full-duplex configured by the network device for the terminal device to use.

[0065] In some embodiments, the network device may carry resource parameters in the first configuration information. In other embodiments, the network device may also carry resource parameters through other information (such as other configuration information different from the first configuration information, indication information, etc.). For example, when using the first configuration information to indicate the search space of the time slot where the detection sub-band full duplex is located and the corresponding detection opportunity, the resource parameters may be indicated by downlink control signaling.

[0066] Step 102, in the inactive state or the connected state, use configured grant for uplink data transmission in the first time slot.

[0067] In the embodiments of the present invention, the network device may configure a configured grant located in the first time slot and a configured grant located in a normal uplink time slot for the terminal device. When the terminal device has a need for uplink data transmission, the terminal device may use the configured grant located in the first time slot for uplink data transmission, or may also use the configured grant located in the normal uplink time slot for uplink data transmission. It should be noted that the content transmitted through the configured grant may be data or signaling, because for the underlying layer (such as the physical layer), the upper layer signaling (such as RRC signaling) or data transmitted can be collectively referred to as data.

[0068] In a specific implementation, when the network device configures a configured grant located in the first time slot and a configured grant located in a normal uplink time slot, the network device may instruct the terminal device to use the configured grant located in the first time slot for uplink data transmission. The configured grant may be located only in some of the multiple first time slots.

[0069] Specifically, when the terminal device is in the connected state, the network device may send indication information to the terminal device. The terminal device obtains the indication information and uses the configured grant located in the first time slot for uplink data transmission.

[0070] In a specific implementation, when the network device configures a configured grant located in the first time slot and a configured grant located in a normal uplink time slot, the terminal device may also preferentially use the configured grant located in the first time slot for uplink data transmission.

[0071] In some embodiments, the network device may configure the priority of the configured grant located in the first time slot to be higher than the priority of the configured grant located in the normal uplink time slot and indicate it to the terminal device. Alternatively, the terminal device may also default that the priority of the configured grant located in the first time slot is higher than the priority of the configured grant located in the normal uplink time slot.

[0072] In the embodiments of the present invention, the network device may not configure the first configuration information for the terminal device. As a result, the terminal device cannot know the specific location of the first time slot. In this scenario, the terminal device may use the configured grant located in the normal uplink time slot for uplink data transmission.

[0073] In a specific implementation, a normal uplink time slot may refer to a time slot only used for uplink data transmission. The normal uplink time slot is not configured with sub-band full duplex and cannot perform downlink data transmission.

[0074] In an embodiment of the present invention, when the terminal device is in an inactive state, the terminal device may use configured authorization to perform uplink data transmission in a first time slot. When the terminal device uses configured authorization to perform uplink data transmission, the amount of data for uplink data transmission needs to be less than a preset bit data amount threshold.

[0075] In a specific implementation, the preset bit data amount threshold may be a default value or pre-configured by a network device, and is used to determine whether the data for uplink data transmission is small data defined in a communication protocol. When the amount of data for uplink data transmission is less than the preset bit data amount threshold, it can be determined that the terminal device is currently performing small data transmission.

[0076] In some embodiments, the bit data amount threshold may be predefined in a communication protocol.

[0077] Thus, when the terminal device is in an inactive state, the terminal device may use configured authorization to perform uplink data transmission in the first time slot, thereby achieving small data transmission in a time slot configured with sub-band full duplex.

[0078] In an embodiment of the present invention, the network device may further configure second configuration information for the terminal device, and the second configuration information is used to configure a logical channel corresponding to the data for performing uplink data transmission using configured authorization in the first time slot.

[0079] In a specific application, it can be known that a logical channel is used to carry services, and different logical channels have different configuration parameters for different service types. For data of some service types, it may not be suitable for transmission in the first time slot. When using sub-band full duplex for data transmission, there is a large interference between the uplink and downlink of the data. Therefore, for some service types with high requirements for data accuracy, they may not be transmitted in the first time slot. For some service types with low requirements for data accuracy, the corresponding data may be used for uplink data transmission using configured authorization in the first time slot.

[0080] In a specific implementation, the network device may configure a first type of logical channel, and the data of the first type of logical channel may be used for uplink data transmission using configured authorization in the first time slot. The terminal device obtains the second configuration information and can then determine the first type of logical channel that can be used for uplink data transmission using configured authorization in the first time slot.

[0081] In some embodiments, the network device may configure the first type of logical channel to be different from the second type of logical channel. The first type of logical channel is the above-mentioned "logical channel corresponding to the uplink data transmitted using configured grant in the first time slot", and the second type of logical channel may be the "logical channel corresponding to the uplink data transmitted using configured grant in a normal uplink time slot".

[0082] In the embodiments of the present invention, if the terminal device detects that there is no specific search space (UE-specific search space) configured in the first time slot, the terminal device may use the configured grant for uplink data transmission in the first time slot.

[0083] Alternatively, if the terminal device determines that there is no need to listen for a random access response in the first time slot, the terminal device may use the configured grant for uplink data transmission in the first time slot.

[0084] Alternatively, if the terminal device determines that the priority of the data transmitted through the configured grant in the first time slot is greater than or equal to a preset threshold, the terminal device may use the configured grant for uplink data transmission in the first time slot.

[0085] Alternatively, if the terminal device determines that there is no need to receive the downlink data scheduled by the downlink control signaling including a priority indication in the first time slot, the terminal device may use the configured grant for uplink data transmission in the first time slot. If the downlink control signaling indicates that the received downlink data (carried on the physical downlink shared channel) has a specific priority, and the downlink control signaling also indicates that the reception of the downlink data is in the first time slot and there is a time domain overlap with the configured CG in the first time slot, in order to ensure the reception of the downlink data, it is necessary to preferentially receive the downlink data.

[0086] Alternatively, if the terminal device determines that there is no need to apply a measurement gap (GAP) in the first time slot, the terminal device may use the configured grant for uplink data transmission in the first time slot. Thus, the terminal device can preferentially process more urgent downlink services.

[0087] In the embodiments of the present invention, in the first time slot, random access resources for small data transmission (SDT) may also be configured, and the random access resources are associated with the frequency band bandwidth of the activated subband full duplex or the number of symbols occupied by the activated subband full duplex.

[0088] Specifically, when the frequency band bandwidth of the activated subband full duplex is different, the position of the corresponding random access resources, the mapping relationship between the synchronization signal block index and the random access channel occasion (RACH-Occasion) may be different.

[0089] In a specific implementation, when using small data transmission, if RA-SDT is used, the corresponding random access resources can be selected according to the bandwidth of the activated subband full duplex or the number of symbols occupied to initiate RA-SDT.

[0090] The present invention also provides another communication method, as follows Figure 3 , which will be described in detail through specific steps.

[0091] In a specific implementation, the communication method provided in the following steps 301 to 302 can be executed by a chip with data processing capabilities in a network device, or by a chip module with data processing capabilities in a network device, or by a network device. In the following embodiments, the communication method executed by the network device is taken as an example for description.

[0092] Step 301: Send the first configuration information.

[0093] In a specific implementation, the network device can configure subband full duplex (SBFD), that is, configure in which time slots subband full duplex can be used. Subband full duplex may mean that in a downlink time slot, some physical resource blocks (PRBs) can be configured for uplink transmission.

[0094] In a specific implementation, after determining to maintain the terminal device in the connected state, the network device can configure the first configuration information for the terminal device and send the first configuration information to the terminal device. Alternatively, when the network device determines to transfer the terminal device to the inactive state, it can also configure the first configuration information for the terminal device and send the first configuration information to the terminal device. The first configuration information can be used to configure the first time slot, and the first time slot is the time slot configured with subband full duplex.

[0095] Specifically, the network device can send the first configuration information to the terminal device through high-layer signaling.

[0096] The terminal device can receive the first configuration information sent by the network device. The terminal device can determine the first time slot configured with subband full duplex based on the first configuration information.

[0097] In a specific application, the network device can dynamically configure subband full duplex. In different time periods, the network device can configure different bandwidths of subband full duplex.

[0098] In an embodiment of the present invention, a network device may configure a search space, which is used to detect the time slot where the sub-band full duplex is located (i.e., the first time slot). The terminal device obtains the search space and detects the search space to obtain the sub-band full duplex configuration information. The search space may be carried in the first configuration information, or may be sent by the network device to the terminal device through other configuration information. Specifically, the network device may send the search space to the terminal device in the connected state through other configuration information.

[0099] In an embodiment of the present invention, the network device may also configure resource parameters. The terminal device may determine to use the configured grant uplink frequency domain resources based on the resource parameters. The above resource parameters may be the frequency band bandwidth of the activated sub-band full duplex or the number of symbols occupied by the activated sub-band full duplex.

[0100] Specifically, the bandwidth of the uplink frequency domain resources may be associated with the frequency band bandwidth of the activated sub-band full duplex, so as to make full use of the uplink resources in the sub-band full duplex time slot. Thus, the terminal device may determine the bandwidth of the uplink frequency domain resources based on the frequency band bandwidth of the activated sub-band full duplex. When the frequency band bandwidth of the activated sub-band full duplex is different, the bandwidth of the uplink frequency domain resources may be different.

[0101] Alternatively, the starting position of the uplink frequency domain resources may also be associated with the frequency band bandwidth of the activated sub-band full duplex. Thus, the terminal device may determine the starting position of the uplink frequency domain resources based on the frequency band bandwidth of the activated sub-band full duplex. When the frequency band bandwidth of the activated sub-band full duplex is different, the starting position of the uplink frequency domain resources may be different. The starting position may be the position relative to the smallest physical resource block within the time slot, or may be the position relative to the smallest physical resource block within the frequency band configured as sub-band full duplex.

[0102] Alternatively, the number of symbols occupied by the uplink frequency domain resources may also be associated with the number of symbols occupied by the activated sub-band full duplex. Thus, the terminal device may determine the number of symbols occupied by the uplink frequency domain resources based on the number of symbols occupied by the activated sub-band full duplex. When the number of symbols occupied by the activated sub-band full duplex is different, the number of symbols occupied by the uplink frequency domain resources may be different.

[0103] In an embodiment of the present invention, the above-mentioned "activated sub-band full duplex" may refer to the sub-band full duplex configured by the network device for the terminal device to use.

[0104] In some embodiments, the network device may carry the resource parameters in the first configuration information. In other embodiments, the network device may also carry the resource parameters through other information (such as other configuration information different from the first configuration information, indication information, etc.).

[0105] Step 302, send indication information.

[0106] In an embodiment of the present invention, a network device may configure a configured grant for a terminal device in a first time slot and a configured grant in a normal uplink time slot. When the terminal device has a need for uplink data transmission, the terminal device may use the configured grant in the first time slot for uplink data transmission, or may use the configured grant in the normal uplink time slot for uplink data transmission.

[0107] In a specific implementation, when the network device configures a configured grant in a first time slot and a configured grant in a normal uplink time slot, the network device may instruct the terminal device to use the configured grant in the first time slot for uplink data transmission. The configured grant may be located only in some of the multiple first time slots.

[0108] Specifically, the network device may send indication information to the terminal device. The terminal device obtains the indication information and uses the configured grant in the first time slot for uplink data transmission.

[0109] In some embodiments, the network device may also configure the priority of the configured grant in the first time slot to be higher than the priority of the configured grant in the normal uplink time slot and indicate it to the terminal device. Alternatively, the terminal device may also default that the priority of the configured grant in the first time slot is higher than the priority of the configured grant in the normal uplink time slot.

[0110] In an embodiment of the present invention, the network device may also configure second configuration information for the terminal device, and the second configuration information is used to configure the logical channel corresponding to the data transmitted using the configured grant in the first time slot.

[0111] In a specific implementation, the specific execution process of the network device may refer to the description in steps 101 to 102 correspondingly, and will not be elaborated here.

[0112] Referring to Figure 4 , a communication device 40 in an embodiment of the present invention is provided, including: an acquisition unit 401 and a data transmission unit 402, where:

[0113] The acquisition unit 401 is configured to acquire first configuration information, and the first configuration information is used to configure a first time slot, and the first time slot is a time slot for configuring subband full duplex;

[0114] The data transmission unit 402 is configured to perform uplink data transmission using a configured grant in the first time slot in a non-active state or a connected state.

[0115] In a specific implementation, the specific execution processes of the above acquisition unit 401 and data transmission unit 402 may refer to steps 101 to 102 correspondingly, and will not be elaborated here.

[0116] In a specific implementation, the above communication device 40 may correspond to a chip with data processing capabilities in a terminal device, or correspond to a chip module including a chip with data processing capabilities in a terminal device, or correspond to a terminal device.

[0117] Referring Figure 5 , another communication device 50 in an embodiment of the present invention is provided, including: a first sending unit 501 and a second sending unit 502, where:

[0118] The first sending unit 501 is configured to send first configuration information, and the first configuration information is used to configure a first time slot, and the first time slot is a time slot for configuring sub-band full duplex;

[0119] The second sending unit 502 is configured to send indication information, and the indication information indicates that configuration authorization is used for uplink data transmission in the first time slot.

[0120] In a specific implementation, the specific execution processes of the above first sending unit 501 and second sending unit 502 may be correspondingly referred to steps 301 to 302, which will not be elaborated here.

[0121] In a specific implementation, the above communication device 50 may correspond to a chip with data processing capabilities in a network device, or correspond to a chip module including a chip with data processing capabilities in a network device, or correspond to a network device.

[0122] In a specific implementation, for each module / unit included in each device and product described in the above embodiments, it may be a software module / unit, a hardware module / unit, or may be partly a software module / unit and partly a hardware module / unit.

[0123] For example, for each device or product applied to or integrated into a chip, each module / unit included therein can be implemented in the form of hardware such as a circuit. Alternatively, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the chip, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as a circuit. For each device or product applied to or integrated into a chip module, each module / unit included therein can be implemented in the form of hardware such as a circuit. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components of the chip module. Alternatively, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the chip module, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as a circuit. For each device or product applied to or integrated into a terminal, each module / unit included therein can be implemented in the form of hardware such as a circuit. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components inside the terminal. Alternatively, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as a circuit.

[0124] An embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored. When the computer program is run by a processor, it executes the communication method provided in any one of the above embodiments.

[0125] An embodiment of the present invention further provides another communication device, including a memory and a processor. A computer program that can run on the processor is stored on the memory. When the processor runs the computer program, it executes the communication method provided in any one of the above embodiments.

[0126] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program. The program can be stored in a computer-readable storage medium, and the storage medium can include: ROM, RAM, a magnetic disk, an optical disk, etc.

[0127] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. A communication method, characterized in that, it includes: obtaining first configuration information, where the first configuration information is used to configure a first time slot, and the first time slot is a time slot for configuring sub-band full duplex; in the inactive state or the connected state, using configured grant for uplink data transmission in the first time slot.

2. The communication method according to claim 1, characterized in that, the first configuration information further includes: a search space, where the search space is used to detect sub-band full duplex configuration information.

3. The communication method according to claim 1 or 2, characterized in that, the first configuration information further includes: resource parameters, where the resource parameters are used to determine the uplink frequency domain resources using configured grant.

4. The communication method according to claim 3, characterized in that, the bandwidth of the uplink frequency domain resources is associated with the frequency band bandwidth of the activated sub-band full duplex, or the starting position of the uplink frequency domain resources is associated with the frequency band bandwidth of the activated sub-band full duplex, or the number of symbols occupied by the uplink frequency domain resources is associated with the number of symbols occupied by the activated sub-band full duplex.

5. The communication method according to claim 1, characterized in that, it further includes: detecting configured grant in a normal uplink time slot and configured grant in the first time slot, and using the configured grant in the first time slot for uplink data transmission.

6. The communication method according to claim 5, characterized in that, it further includes: receiving indication information, where the indication information is used to indicate using the configured grant in the first time slot for uplink data transmission.

7. The communication method according to claim 1, characterized in that, in the inactive state, the data volume of the data using configured grant for uplink data transmission is less than a preset bit data volume threshold.

8. The communication method according to claim 1, characterized in that, it further includes: if the first configuration information is not obtained, using the configured grant in a normal uplink time slot for uplink data transmission.

9. The communication method according to claim 1, characterized in that, it further includes: obtaining second configuration information, where the second configuration information is used to configure the logical channel corresponding to the data using configured grant for uplink data transmission in the first time slot.

10. The communication method according to claim 1, characterized in that, it further includes: not configuring a specific search space in the first time slot; or not listening for a random access response in the first time slot; or, the priority of the data transmitted through the configured grant in the first time slot is greater than or equal to a preset threshold; or, not receiving downlink data scheduled by downlink control signaling including a priority indication in the first time slot; or not applying a measurement gap in the first time slot, and using the configured grant for uplink data transmission in the first time slot.

11. A communication method, characterized in that, it includes: sending first configuration information, where the first configuration information is used to configure a first time slot, and the first time slot is a time slot for configuring sub-band full duplex; sending indication information, where the indication information indicates using configured grant for uplink data transmission in the first time slot.

12. The communication method according to claim 11, characterized in that, The first configuration information further includes: a search space, which is used to detect sub-band full-duplex configuration information.

13. The communication method according to claim 11 or 12, wherein, the first configuration information further includes: resource parameters, which are used to determine the uplink frequency-domain resources using configured authorization.

14. The communication method according to claim 13, wherein, the bandwidth of the uplink frequency-domain resources is associated with the frequency-band bandwidth of the activated sub-band full-duplex, or the starting position of the uplink frequency-domain resources is associated with the frequency-band bandwidth of the activated sub-band full-duplex, or the number of symbols occupied by the uplink frequency-domain resources is associated with the number of symbols occupied by the activated sub-band full-duplex.

15. A communication device, wherein, it includes: an obtaining unit, configured to obtain first configuration information, where the first configuration information is used to configure a first time slot, and the first time slot is a time slot configured for sub-band full-duplex; a data transmission unit, configured to perform uplink data transmission using configured authorization in the first time slot in a non-active state or a connected state.

16. A communication device, wherein, it includes: a first sending unit, configured to send first configuration information, where the first configuration information is used to configure a first time slot, and the first time slot is a time slot configured for sub-band full-duplex; a second sending unit, configured to send indication information, where the indication information indicates to perform uplink data transmission using configured authorization in the first time slot.

17. A computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, wherein, when the computer program is run by a processor, it executes the steps of the communication method according to any one of claims 1 to 14.

18. A communication device includes a memory and a processor, and a computer program capable of running on the processor is stored on the memory, wherein, when the processor runs the computer program, it executes the steps of the communication method according to any one of claims 1 to 10; or when running the computer program, it executes the steps of the communication method according to any one of claims 11 to 14.

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