Method and apparatus for determining uplink multiplexing time-frequency resources

Abstract

An embodiment of the present application discloses a method and apparatus for determining uplink multiplexed time-frequency resources. The method includes: a terminal device receives first information, where the first information includes N uplink multiplexed time-frequency resource indication fields, each of the indication fields corresponding to a time-frequency resource position, and N is a positive integer; based on the first information, uplink multiplexed time-frequency resources are determined from first time-frequency resources, where the first time-frequency resources are reusable uplink time-frequency resources. The present application proposes a solution for determining uplink multiplexed time-frequency resources of PUSCH distributed in an interlace manner, enabling the terminal device to know the physical resource blocks for uplink multiplexing in the frequency domain corresponding to the uplink multiplexed time-frequency resources and the OFDM symbols for uplink multiplexing in the time domain.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a method and apparatus for determining uplink multiplexing time-frequency resources Background Art

[0002] In 5G communication services, to improve resource utilization efficiency, user terminals with different data transmission durations can multiplex the same time-frequency physical resources. For example, the transmission duration of an Ultra Reliable&Low Latency Communication (URLLC) user terminal is short, so it is a short time duration user terminal; the transmission duration of an enhanced Mobile Broadband (eMBB) user terminal is long, so it is a long time duration user terminal

[0003] To meet the low latency requirements of short time duration user terminals, the base station can schedule user terminals with shorter transmission durations on the uplink time-frequency resources of the already scheduled long time duration user terminals, so as to enable the short time duration user terminals to multiplex the uplink time-frequency resources of the long time duration user terminals. For example, the base station schedules the URLLC user terminal to multiplex the uplink time-frequency resources of the eMBB user terminal on the uplink time-frequency resources of the eMBB user terminal

[0004] Currently, the base station can indicate the time-frequency resources for uplink multiplexing used by the terminal device by carrying the downlink control information (DCI) in the format of Frmat2_4 on the Group Common (GC) Physical Downlink Control Channel (PDCCH) (GC-PDCCH). However, the Physical Uplink Shared Channel (PUSCH) in the unlicensed band is distributed in an interlace manner. Therefore, how to determine the time-frequency resources for uplink multiplexing of the PUSCH distributed in an interlace manner is an urgent problem to be solved Summary of the Invention

[0005] The embodiments of this application provide a method and apparatus for determining uplink multiplexing time-frequency resources, enabling the terminal device to know the physical resource blocks for uplink multiplexing in the frequency domain corresponding to the uplink multiplexing time-frequency resources and the OFDM symbols for uplink multiplexing in the time domain

[0006] In a first aspect, the embodiments of this application provide a method for determining uplink multiplexing time-frequency resources, and the method includes:

[0007] Receive a first piece of information, where the first piece of information includes N uplink multiplexed time-frequency resource indication fields, and each of the indication fields corresponds to a time-frequency resource position, and N is a positive integer;

[0008] Based on the first piece of information, determine uplink multiplexed time-frequency resources from a first time-frequency resource, where the first time-frequency resource is a reusable uplink time-frequency resource.

[0009] In a second aspect, an embodiment of the present application provides a method for determining uplink multiplexed time-frequency resources, and the method includes:

[0010] Send a first piece of information, where the first piece of information is used for a terminal device to determine uplink multiplexed time-frequency resources from a first time-frequency resource, the first piece of information includes N uplink multiplexed time-frequency resource indication fields, each of the indication fields corresponds to a time-frequency resource position, the first time-frequency resource is a reusable uplink time-frequency resource, and N is a positive integer.

[0011] In a third aspect, an embodiment of the present application provides a device for determining uplink multiplexed time-frequency resources, and the device includes:

[0012] A transceiver unit, configured to receive a first piece of information, where the first piece of information includes N uplink multiplexed time-frequency resource indication fields, and each of the indication fields corresponds to a time-frequency resource position, and N is a positive integer;

[0013] A processing unit, configured to determine uplink multiplexed time-frequency resources from a first time-frequency resource based on the first piece of information, where the first time-frequency resource is a reusable uplink time-frequency resource.

[0014] In a fourth aspect, an embodiment of the present application provides a device for determining uplink multiplexed time-frequency resources, and the device includes:

[0015] A transceiver unit, configured to send a first piece of information, where the first piece of information is used for a terminal device to determine uplink multiplexed time-frequency resources from a first time-frequency resource, the first piece of information includes N uplink multiplexed time-frequency resource indication fields, each of the indication fields corresponds to a time-frequency resource position, the first time-frequency resource is a reusable uplink time-frequency resource, and N is a positive integer.

[0016] In a fifth aspect, an embodiment of the present application provides a network device, and the network device includes a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and are configured to be executed by the processor, and the programs include instructions for performing some or all of the steps described in the method according to the first aspect above.

[0017] Sixth aspect, an embodiment of the present application provides a terminal device, which includes a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the processor. The programs include instructions for performing some or all of the steps described in the method according to the second aspect above.

[0018] Seventh aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute some or all of the steps described in the method according to the first aspect or the second aspect above.

[0019] Eighth aspect, an embodiment of the present application provides a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program. The computer program is operable to cause a computer to execute some or all of the steps described in the method according to the first aspect or the second aspect of the embodiments of the present application. The computer program product can be a software installation package.

[0020] In an embodiment of the present application, a network device sends first information, where the first information includes N uplink multiplexing time-frequency resource indication fields, and each indication field corresponds to a time-frequency resource position, and N is a positive integer; the terminal device receives the first information and determines uplink multiplexing time-frequency resources from a first time-frequency resource based on the first information, where the first time-frequency resource is a reusable uplink time-frequency resource. The present application proposes a determination scheme for uplink multiplexing time-frequency resources of PUSCH distributed in an interlace manner, enabling the terminal device to know the physical resource blocks for uplink multiplexing in the frequency domain corresponding to the uplink multiplexing time-frequency resources and the OFDM symbols for uplink multiplexing in the time domain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a schematic diagram of the architecture of a wireless communication system provided by an embodiment of the present application;

[0023] Figure 2a is a schematic diagram of a structure for indicating uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0024] Figure 2bSchematic diagram of the frequency-domain distribution of an interlace provided by an embodiment of the present application;

[0025] Figure 3 Schematic flow chart of a method for determining uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0026] Figure 4a Schematic structural diagram of a structure for indicating uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0027] Figure 4b Schematic structural diagram of a structure for indicating uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0028] Figure 4c Schematic structural diagram of a structure for indicating uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0029] Figure 5a Schematic structural diagram of a structure for indicating uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0030] Figure 5b Schematic structural diagram of a structure for indicating uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0031] Figure 5c Schematic structural diagram of a structure for indicating uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0032] Figure 6 Schematic structural diagram of a device for determining uplink multiplexing time-frequency resources provided by an embodiment of the present application;

[0033] Figure 7 Schematic structural diagram of a computer device provided by an embodiment of the present application. Detailed implementation manners

[0034] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0035] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: 5G communication systems (e.g., New Radio (NR)), and the 5G mobile communication systems include non-standalone (NSA) 5G mobile communication systems and / or standalone (SA) 5G mobile communication systems. The technical solutions provided by the present application can also be applied to communication systems integrating multiple communication technologies (e.g., communication systems integrating LTE technology and NR technology), or are applicable to various future new communication systems, such as 6G communication systems, 7G communication systems, etc., and the embodiments of the present application do not limit this. The technical solutions of the embodiments of the present application are also applicable to different network architectures, including but not limited to relay network architectures, dual-link architectures, Vehicle-to-Everything architectures, etc.

[0036] The network device involved in the embodiments of the present application can be a Base Station (BS), also known as base station equipment, which is a device deployed in the radio access network to provide wireless communication functions. For example, the devices providing base station functions in the 2G network include Base Transceiver Station (BTS) and BaseStation Controller (BSC), the devices providing base station functions in the 3G network include Node B and Radio Network Controller (RNC), the devices providing base station functions in the 4G network include evolved NodeB (eNB), in Wireless Local Area Networks (WLAN), the device providing base station functions is Access Point (AP), the devices providing base station functions in 5G New Radio (NR) include the continuously evolved Node B (gNB), and the devices providing base station functions in future new communication systems, etc.

[0037] Embodiments of this application relate to a terminal device, which is a device with wireless communication functions. The terminal device can be a mobile phone, a pad, a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in smart home, etc. The terminal device can also be a handheld device, a vehicle-mounted device, a wearable device, a computer device, or other processing devices connected to a wireless modem, a terminal device in the future 5G network, or a terminal device in a future evolved public land mobile network (PLMN for short). In different networks, the terminal device can be called different names. For example: user equipment, access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), a terminal device in the 5G network or a future evolved network. Embodiments of this application are not limited thereto.

[0038] Please refer to Figure 1 , Figure 1 which is a schematic diagram of a wireless communication system proposed by embodiments of this application. As Figure 1 shown, the wireless communication system can include a network device and a terminal device. The network device can communicate with the terminal device through wireless communication. Figure 1 The forms and quantities of the network device and the terminal device shown in

[0039] In 5G communication services, to improve resource utilization efficiency, terminal devices with different data transmission durations can reuse the same time-frequency physical resources. For example, the transmission duration of an Ultra Reliable&Low Latency Communication (URLLC) terminal device is short, so it is a short time duration terminal device; the transmission duration of an enhanced Mobile Broadband (eMBB) terminal device is long, so it is a long time duration terminal device. To meet the low latency requirements of short time duration terminal devices, the base station can schedule terminal devices with shorter transmission durations on the uplink time-frequency resources of the already scheduled long time duration terminal devices, thereby enabling short time duration terminal devices to reuse the uplink time-frequency resources of long time duration terminal devices. For example, the base station schedules URLLC terminal devices to reuse the uplink time-frequency resources of eMBB terminal devices on the uplink time-frequency resources of eMBB terminal devices.

[0040] Currently, it is possible to support the base station to notify the terminal device of the uplink reuse time-frequency domain resource indication by carrying the DCI of Format 2-4 through GC-PDCCH. Specifically, it includes: the high-layer signaling of the base station configures the frequency domain area of the uplink reference resource, which contains multiple Physical Resource Blocks (PRBs). An UpLink Cancellation Indication (CI) includes Nbits. There are M OFDM symbols available for uplink reuse in the time domain area except for Downlink symbols, Synchronization Signal and PBCH block (SSB) symbols. The M symbols are divided into K groups (configured by high-layer signaling), and each group includes L resource blocks in the frequency domain. The CI is divided into M groups according to the K groups of OFDM symbols, and each group corresponds to one symbol. As Figure 2a shown, the first groups in the CI contain symbols, and the remaining groups contain symbols. P = N / L bit in each group corresponds one-to-one with P groups of PRBs, where the first contain groups of PRBs, and the other groups contain groups of PRBs.

[0041] For PUSCH transmission in unauthorized frequency bands, an interlace method is adopted. The interlace is the basic unit of resource allocation. An interlace with a subcarrier of 20 MHz / 10 MHz contains 10 PRBs, and these 10 PRBs are evenly distributed in the frequency domain. For example, as Figure 2b shown, interlace 0 consists of RBs with indexes 0, 10, 20,..., 90. However, UL CL can only indicate continuous frequency-domain resources. For PUSCH distributed in an interlace manner, it is necessary to redefine the frequency-domain resources indicated by the CI.

[0042] To solve the above problems, this application proposes a method for determining uplink multiplexing time-frequency resources. The terminal device receives first information, and the first information includes N uplink multiplexing time-frequency resource indication fields. Each indication field corresponds to a time-frequency resource position, and N is a positive integer. Based on the first information, uplink multiplexing time-frequency resources are determined from the first time-frequency resources, and the first time-frequency resources are reusable uplink time-frequency resources. This application proposes a scheme for determining uplink multiplexing time-frequency resources for PUSCH distributed in an interlace manner, enabling the terminal device to know the physical resource blocks for uplink multiplexing in the frequency domain corresponding to the uplink multiplexing time-frequency resources and the OFDM symbols for uplink multiplexing in the time domain.

[0043] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0044] Please refer to Figure 3 , Figure 3 which is a schematic flowchart of a method for determining uplink multiplexing time-frequency resources provided by an embodiment of this application, and is applied to a wireless communication system as shown in Figure 1 . As shown in Figure 3 , the method includes the following steps:

[0045] S310. The network device sends first information, and the first information includes N uplink multiplexing time-frequency resource indication fields. Each indication field corresponds to a time-frequency resource position, and N is a positive integer.

[0046] In an embodiment of the present application, the first information is used for a terminal device to determine uplink multiplexed time-frequency resources from first time-frequency resources. To improve resource utilization, a network device may send the first information (configured by a high-layer signaling) to the terminal device to indicate that the terminal device can multiplex the uplink time-frequency resources of other terminal devices. For example, terminal device 1 may be a long-duration terminal device, that is, a terminal device with a relatively long data transmission duration, such as an eMMB user terminal. Terminal device 2 may be a short-duration terminal device, such as a URLLC user terminal. To meet the low-latency requirements of terminal device 2, the network device may schedule terminal device 2 to multiplex the uplink time-frequency resources of terminal device 1. When the network device determines that terminal device 2 multiplexes the uplink time-frequency resources of terminal device 1, the network device may send the first information to terminal device 1.

[0047] Optionally, the first information may be DCI. When the network device sends DCI to the terminal device, it may send DCI to the terminal device according to a preset transmission period, and the transmission period of the network device may be equal to the monitoring period of the terminal device. The DCI adopted by the network device may be the DCI corresponding to 5G NR DCI Format2_4. The format of the above DCI may also be other predefined formats. The predefined formats mentioned here are different from the DCI formats indicating PDCCH or indicating GC-PDCCH transmission. Specifically, it may be a newly defined DCI format in a subsequent evolved communication system, or other DCI formats in an existing communication system, etc. By using the above manner that the DCI format is other predefined formats, it is convenient to flexibly implement DCI.

[0048] Further, the first information may be carried in a downlink channel such as a Physical Downlink Control Channel (PDCCH), a group common PDCCH, a PDSCH, or a GC-PDSCH. The embodiments of the present application do not limit this.

[0049] Among them, the first time-frequency resources are reusable uplink time-frequency resources. The first time-frequency resources include M OFDM symbols in the time domain and Y subbands in the frequency domain. Each subband includes L resource blocks. Both M and L are positive integers, and Y is a positive integer greater than 1. One resource block may be an interlace or multiple consecutive interlaces. The embodiments of the present application do not limit this.

[0050] In practical applications, the first time-frequency resource may include resources in the frequency domain and resources in the time domain. The resources in the frequency domain included in the first time-frequency resource may be physical resource blocks that can be used for uplink multiplexing in the frequency domain; the resources in the time domain included in the first time-frequency resource may be OFDM symbols that can be used for uplink multiplexing in the time domain.

[0051] Furthermore, the uplink multiplexing time-frequency resource may be used to indicate the time-frequency resource occupied by the terminal device for sending data, and this uplink multiplexing time-frequency resource also includes resources in the frequency domain and resources in the time domain. The resources in the frequency domain included in the uplink multiplexing time-frequency resource may be physical resource blocks determined by the terminal device from the physical resource blocks that can be used for uplink multiplexing; the resources in the time domain included in the uplink multiplexing time-frequency resource may be OFDM symbols determined by the terminal device from the OFDM symbols that can be used for uplink multiplexing.

[0052] Among them, the uplink multiplexing time-frequency resource indication field may occupy 1 bit or multiple bits. One uplink multiplexing time-frequency resource indication field may indicate one or more resource blocks. N may take values of: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, etc. In some examples, the value of N may be an integer multiple of 2 or an integer multiple of 7. Of course, the embodiments of the present application do not limit that N can take other values. When the uplink multiplexing time-frequency resource indication field occupies 1 bit, a value of 1 in the uplink multiplexing time-frequency resource indication field can be used to indicate that the corresponding time-frequency resource is an uplink multiplexing time-frequency resource. In some examples, a value of 0 in the uplink multiplexing time-frequency resource indication field can be used to indicate that the corresponding time-frequency resource is an uplink multiplexing time-frequency resource, and the embodiments of the present application do not make a limitation on this. When the uplink multiplexing time-frequency resource indication field occupies multiple bits, the value of the uplink multiplexing time-frequency resource indication field can be used according to the actual situation to indicate that the corresponding time-frequency resource is an uplink multiplexing time-frequency resource. For example, when the uplink multiplexing time-frequency resource indication field occupies 2 bits and indicates 1 resource block, a value of 11 in the uplink multiplexing time-frequency resource indication field indicates that the corresponding time-frequency resource is an uplink multiplexing time-frequency resource, and a value of 00 in the uplink multiplexing time-frequency resource indication field indicates that the corresponding time-frequency resource is not an uplink multiplexing time-frequency resource.

[0053] S320: The terminal device receives the first information.

[0054] S330: The terminal device determines the uplink multiplexing time-frequency resource from the first time-frequency resource based on the first information, and the first time-frequency resource is a reusable uplink time-frequency resource.

[0055] Among them, after receiving the first information, the terminal device may determine the uplink time-frequency resource of the terminal device according to the indication of the uplink multiplexing time-frequency resource indication field in the first information.

[0056] Optionally, the M OFDM symbols are divided into K groups, where K is a positive integer; determining the uplink multiplexing time-frequency resources based on the first information includes: dividing the N uplink multiplexing time-frequency resource indication fields into K groups based on the K groups, and the first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols, where is rounded down, and is rounded up; determining the uplink multiplexing frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexing time-frequency resource indication fields in the K groups.

[0057] In a specific implementation, the M OFDM symbols in the first time-frequency resource can be divided into K groups (configured by high-layer signaling). The terminal device can first divide the N uplink multiplexing time-frequency resource indication fields into K groups according to the K groups, so that each group of uplink multiplexing time-frequency resource indication fields corresponds to a group of OFDM symbols in the time domain. After receiving the first information, the terminal device can determine the uplink multiplexing frequency-domain resources on the corresponding OFDM symbols according to the uplink multiplexing time-frequency resource indication fields in each group of the K groups.

[0058] Among them, when the terminal device divides the uplink multiplexing time-frequency resource indication fields into K groups, in the first of the K groups, each group is used to indicate the first groups of OFDM symbols; the last groups are used to indicate the last groups of OFDM symbols. For example, assume that the first time-frequency resource includes 3 OFDM symbols, and the high-layer signaling of the network device configures the 2 OFDM symbols into 2 groups. The first information includes 8 uplink multiplexing time-frequency resource indication fields. After receiving the first information, the terminal device divides the uplink multiplexing time-frequency resource indication fields into 2 groups. The first group of uplink multiplexing time-frequency resource indication fields is used to indicate the first group of OFDM symbols, and the second group of uplink multiplexing time-frequency resource indication fields is used to indicate the second group and the third group of OFDM symbols.

[0059] After grouping the N uplink multiplexing time-frequency resource indication fields and determining the corresponding groups of OFDM symbols, the terminal device can determine the uplink multiplexing frequency-domain resource positions in the frequency domain corresponding to each group of OFDM symbols based on the uplink multiplexing time-frequency resource indication fields in each group.

[0060] In a possible embodiment, the i-th group includes P uplink multiplexing time-frequency resource indication fields. The first Y uplink multiplexing time-frequency resource indication fields in the i-th group correspond to the subbands one by one. The first uplink multiplexing time-frequency resource indication fields starting from the Y + 1 in the i-th group are used to indicate resource blocks, the latter uplink multiplexed time-frequency resource indication fields in the i-th group are used to indicate resource blocks, where P = N / K, Q = P - Y, and the i-th group is any one of the M groups;

[0061] Determining the uplink multiplexed frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in the K groups includes: determining whether the corresponding subbands in the frequency domain corresponding to the i-th group of OFDM symbols include uplink multiplexed frequency-domain resources based on the first Y uplink multiplexed time-frequency resource indication fields in the i-th group; and determining the positions of the uplink multiplexed frequency-domain resources in the corresponding subbands based on the latter Q uplink multiplexed time-frequency resource indication fields in the i-th group.

[0062] Among them, when there are Y subbands in the frequency-domain resources, the subbands at the corresponding positions can be indicated by the bit-map of the uplink multiplexed time-frequency resource indication fields. When the number of subbands in the frequency-domain resources is 1, it may not be necessary to use a bit-map to indicate the subbands at the corresponding positions; when the number of subbands Y in the frequency-domain resources >= 2, the Y uplink multiplexed time-frequency resource indication fields can be used to indicate the subbands, and the Y uplink multiplexed time-frequency resource indication fields correspond one-to-one with the Y subbands. The terminal device can determine whether the corresponding subbands include uplink multiplexed frequency-domain resources by identifying the values of the first Y uplink multiplexed time-frequency resource indication fields in the i-th group.

[0063] Specifically, when the i-th group includes P uplink multiplexed time-frequency resource indication fields, the first Y uplink multiplexed time-frequency resource indication fields can be used to determine the subbands including uplink multiplexed frequency-domain resources, and the remaining P - Y uplink multiplexed time-frequency resource indication fields can be used to determine the frequency-domain positions of the uplink multiplexed frequency-domain resources in the subbands. Among the remaining P - Y uplink multiplexed time-frequency resource indication fields, the first uplink multiplexed time-frequency resource indication fields are used to indicate resource blocks, and the latter uplink multiplexed time-frequency resource indication fields in the i-th group are used to indicate resource blocks. For example, when there are 5 resource blocks on a subband and 2 remaining uplink multiplexed time-frequency resource indication fields, then the remaining first uplink multiplexed time-frequency resource indication field is used to indicate 2 resource blocks, and the remaining second uplink multiplexed time-frequency resource indication field is used to indicate 3 resource blocks.

[0064] After receiving the first information, the terminal device can determine the sub-bands of the frequency-domain resources available for uplink multiplexing on the i-th group of OFDM symbols by identifying the values of the first Y uplink multiplexing time-frequency resource indication fields in the i-th group of uplink multiplexing time-frequency resource indication fields; and can determine the frequency-domain positions of the frequency-domain resources available for uplink multiplexing in the sub-bands by identifying the values of the remaining uplink multiplexing time-frequency resource indication fields in the i-th group.

[0065] For example, as Figure 4a shown, the first frequency-domain resource includes 2 OFDM symbols in the time domain and is divided into 2 groups; in the frequency domain, it includes 3 sub-bands, namely Sub-band 0, Sub-band 1, and Sub-band 2, and each sub-band includes 4 resource blocks. The first information includes 10 uplink multiplexing time-frequency resource indication fields, which are divided into 2 groups, and each uplink multiplexing time-frequency resource indication field occupies 1 bit; each group includes 5 uplink multiplexing time-frequency resource indication fields, and the first 3 uplink multiplexing time-frequency resource indication fields in each group are used to indicate the sub-bands including the uplink multiplexing time-frequency resources, and the last 2 uplink multiplexing time-frequency resource indication fields in each group are used to indicate the frequency-domain positions of the frequency-domain resources available for uplink multiplexing in the sub-bands. As Figure 4a shown, the 3rd and 4th resource blocks of Sub-band 0 and Sub-band 1 corresponding to the first group of OFDM symbols can be used as the frequency-domain resources for uplink multiplexing of the terminal device, and the 1st and 2nd resource blocks of Sub-band 1 corresponding to the second group of OFDM symbols can be used as the frequency-domain resources for uplink multiplexing of the terminal device.

[0066] In a possible embodiment, the j-th group includes P uplink multiplexing time-frequency resource indication fields, and the first uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks, and the last uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks, and the j-th group is any one of the M groups;

[0067] Determining the positions of the uplink multiplexing frequency-domain resources corresponding to the K groups of OFDM symbols based on the uplink multiplexing time-frequency resource indication fields in the K groups includes: determining the positions of the uplink multiplexing frequency-domain resources in each of the sub-bands corresponding to the j-th group of OFDM symbols based on the uplink multiplexing time-frequency resource indication fields in the j-th group.

[0068] In an embodiment of the present application, when the first time-frequency resource includes multiple sub-bands in the frequency domain, the resource blocks on the sub-bands may not be distinguished, and the time-frequency resource indication field in uplink multiplexing may directly indicate the resource blocks corresponding to the frequency domain of a group of OFDM symbols. After receiving the first information, the terminal device can determine the frequency domain position of the frequency domain resources available for uplink multiplexing of the terminal device on the i-th group of OFDM symbols by identifying the value of the i-th group of time-frequency resource indication fields in uplink multiplexing. In the j-th group of time-frequency resource indication fields in uplink multiplexing, the first several time-frequency resource indication fields in uplink multiplexing are used to indicate several resource blocks, and the last several time-frequency resource indication fields in the i-th group are used to indicate several resource blocks. For example, when there are 10 resource blocks on a group of OFDM symbols and there are 4 time-frequency resource indication fields in the j-th group, then the first 2 time-frequency resource indication fields in the j-th group are used to indicate 2 resource blocks, and the last 2 time-frequency resource indication fields are used to indicate 3 resource blocks.

[0069] For example, as Figure 4b shown, the first frequency domain resource includes 2 OFDM symbols in the time domain and is divided into 2 groups; in the frequency domain, it includes 2 sub-bands, namely Sub-band 0 and Sub-band 1, and each sub-band includes 4 resource blocks, so a group of OFDM symbols corresponds to 8 resource blocks in the frequency domain. The first information includes 8 time-frequency resource indication fields in uplink multiplexing, which are divided into 2 groups, and each time-frequency resource indication field in uplink multiplexing occupies 1 bit; each group includes 4 time-frequency resource indication fields in uplink multiplexing, and the 4 time-frequency resource indication fields in each group are used to indicate the resource blocks corresponding to the frequency domain of a group of OFDM symbols, so each time-frequency resource indication field in each group can indicate two resource blocks. As Figure 4b shown, the 3rd, 4th, 7th, and 8th resource blocks corresponding to the frequency domain of the 1st group of OFDM symbols can be used as the uplink multiplexing frequency domain resources of the terminal device, and the 5th and 6th resource blocks corresponding to the frequency domain on the 2nd OFDM symbol can be used as the uplink multiplexing frequency domain resources of the terminal device.

[0070] In a possible embodiment, the r-th group includes Y subgroups, the subgroups correspond to the sub-bands one by one, each subgroup includes P / Y time-frequency resource indication fields in uplink multiplexing, and the first several time-frequency resource indication fields in the t-th subgroup are used to indicate several resource blocks, and the last several time-frequency resource indication fields in the t-th subgroup are used to indicate several resource blocks, where the r-th group is any one of the M groups, and the t-th subgroup is any one of the Y subgroups;

[0071] Determining the uplink multiplexing frequency-domain resource positions in the frequency domain corresponding to the M groups of OFDM symbols based on the uplink multiplexing time-frequency resource indication fields in the M groups includes: determining the positions of the uplink multiplexing frequency-domain resources in each of the sub-bands in the frequency domain corresponding to the OFDM symbols in the r-th group based on the uplink multiplexing time-frequency resource indication fields in each subgroup in the r-th group.

[0072] In an embodiment of the present application, when the first time-frequency resource includes multiple sub-bands in the frequency domain, the uplink multiplexing time-frequency resource indication fields in the r-th group can be further grouped to obtain P / Y subgroups, and each subgroup indicates the resource blocks in one sub-band. After receiving the first information, the terminal device can determine the frequency-domain positions of the frequency-domain resources available for uplink multiplexing in the sub-band on the OFDM symbols in the r-th group by identifying the values of the uplink multiplexing time-frequency resource indication fields in each subgroup in the r-th group. In the uplink multiplexing time-frequency resource indication field of the t-th subgroup in the r-th group, the first uplink multiplexing time-frequency resource indication fields are used to indicate resource blocks, and the last uplink multiplexing time-frequency resource indication fields in the t-th subgroup in the r-th group are used to indicate resource blocks. For example, when there are 3 sub-bands on a group of OFDM symbols, each sub-band includes 5 resource blocks, the r-th group includes 6 uplink multiplexing time-frequency resource indication fields, and each subgroup includes 2 uplink multiplexing time-frequency resource indication fields, then the first 1 uplink multiplexing time-frequency resource indication field in each subgroup is used to indicate 2 resource blocks, and the last 1 uplink multiplexing time-frequency resource indication field is used to indicate 3 resource blocks.

[0073] Illustratively, as Figure 4c shown, the first frequency-domain resource includes 2 OFDM symbols in the time domain and is divided into 2 groups; in the frequency domain, it includes 3 sub-bands, namely Sub-band, Sub-band 0, and Sub-band 1, and each sub-band includes 4 resource blocks. The first information includes 12 uplink multiplexing time-frequency resource indication fields, which are divided into 2 groups, and each uplink multiplexing time-frequency resource indication field occupies 1 bit; each group includes 6 uplink multiplexing time-frequency resource indication fields, and 4 uplink multiplexing time-frequency resource indication fields in each group are used to indicate the resource blocks in the frequency domain corresponding to a group of OFDM symbols. The uplink multiplexing time-frequency resource indication fields in each group are further grouped into 3 subgroups, and each subgroup correspondingly indicates the resource blocks on one sub-band Sub-band, then each uplink multiplexing time-frequency resource indication field in each subgroup can indicate two resource blocks. As Figure 4cAs shown, the 3rd and 4th resource blocks of Sub-band 0, Sub-band 1, and Sub-band 2 corresponding to the first group of OFDM symbols can be used as the uplink multiplexing frequency domain resources for the terminal device, and the 1st and 2nd resource blocks of Sub-band 1 and Sub-band 2 corresponding to the second group of OFDM symbols can be used as the uplink multiplexing frequency domain resources for the terminal device.

[0074] In a possible embodiment, each group of uplink multiplexing time-frequency resource indication fields in the first information can use different methods to indicate the corresponding frequency domain resources in the corresponding OFDM symbol group.

[0075] Optionally, some groups in the first information can determine whether the sub-bands in the corresponding frequency domain of the corresponding OFDM symbol group include uplink multiplexing frequency domain resources through the first Y uplink multiplexing time-frequency resource indication fields in the group, and determine the positions of the uplink multiplexing frequency domain resources in the sub-bands based on the subsequent Q uplink multiplexing time-frequency resource indication fields in the group; some other groups in the first information can determine the positions of the uplink multiplexing frequency domain resources in each sub-band in the corresponding frequency domain of the OFDM symbol group through the uplink multiplexing time-frequency resource indication fields in the group.

[0076] For example, as Figure 5a shown, the first frequency domain resource includes 2 OFDM symbols in the time domain and is divided into 2 groups; in the frequency domain, it includes 3 sub-bands, namely Sub-band 0, Sub-band 1, and Sub-band 2, and each sub-band includes 4 resource blocks. The first information includes 9 uplink multiplexing time-frequency resource indication fields, which are divided into 2 groups, and each uplink multiplexing time-frequency resource indication field occupies 1 bit; the first group includes 4 uplink multiplexing time-frequency resource indication fields, and the second group includes 5 uplink multiplexing time-frequency resource indication fields. The 4 uplink multiplexing time-frequency resource indication fields in the first group are used to indicate the resource blocks in the corresponding frequency domain of the first group of OFDM symbols, and each uplink multiplexing time-frequency resource indication field in the first group can indicate 3 resource blocks; the first 3 uplink multiplexing time-frequency resource indication fields in the second group are used to indicate the sub-bands including uplink multiplexing time-frequency resources, and the last 2 uplink multiplexing time-frequency resource indication fields in the second group are used to indicate the frequency domain positions of the uplink multiplexing frequency domain resources in the sub-bands. As Figure 5b shown, the 4th, 5th, 6th, 10th, 11th, and 12th resource blocks in the frequency domain corresponding to the first group of OFDM symbols can be used as the uplink multiplexing frequency domain resources for the terminal device; the 1st and 2nd resource blocks of Sub-band 0 and Sub-band 1 corresponding to the second group of OFDM symbols can be used as the uplink multiplexing frequency domain resources for the terminal device.

[0077] Optionally, some groups in the first information can determine whether the sub-bands in the frequency domain corresponding to the corresponding OFDM symbol group include uplink multiplexing frequency domain resources based on the first Y uplink multiplexing time-frequency resource indication fields in the group, and determine the positions of the uplink multiplexing frequency domain resources in the sub-bands based on the subsequent Q uplink multiplexing time-frequency resource indication fields in the group; some other groups in the first information can determine the positions of the uplink multiplexing frequency domain resources in each of the sub-bands in the frequency domain corresponding to the r-th group of OFDM symbols through the uplink multiplexing time-frequency resource indication fields in each subgroup.

[0078] For example, as Figure 5b shown, the first frequency domain resource includes 2 OFDM symbols in the time domain and is divided into 2 groups; in the frequency domain, it includes 3 sub-bands, namely Sub-band 0, Sub-band 1, and Sub-band 2, and each sub-band includes 4 resource blocks. The first information includes 11 uplink multiplexing time-frequency resource indication fields, which are divided into 2 groups, and each uplink multiplexing time-frequency resource indication field occupies 1 bit; the first group includes 5 uplink multiplexing time-frequency resource indication fields, and the second group includes 6 uplink multiplexing time-frequency resource indication fields. The first 3 uplink multiplexing time-frequency resource indication fields in the first group are used to indicate the sub-bands including uplink multiplexing time-frequency resources, and the last 2 uplink multiplexing time-frequency resource indication fields in the first group are used to indicate the frequency domain positions of the uplink multiplexing frequency domain resources in the sub-bands; the uplink multiplexing time-frequency resource indication fields in the second group are further divided into 3 subgroups, and each subgroup correspondingly indicates the resource blocks on 1 sub-band Sub-band, then each uplink multiplexing time-frequency resource indication field in each subgroup can indicate 2 resource blocks. As Figure 5b shown, the first and second resource blocks of Sub-band 1 corresponding to the first group of OFDM symbols can be used as the uplink multiplexing frequency domain resources of the terminal device; the third and fourth resource blocks of Sub-band 0, Sub-band 1, and Sub-band 2 corresponding to the second group of OFDM symbols can be used as the uplink multiplexing frequency domain resources of the terminal device.

[0079] Optionally, some other groups in the first information can determine the positions of the uplink multiplexing frequency domain resources in each of the sub-bands in the frequency domain corresponding to the OFDM symbol group through the uplink multiplexing time-frequency resource indication fields in the group; some other groups in the first information can determine the positions of the uplink multiplexing frequency domain resources in each of the sub-bands in the frequency domain corresponding to the r-th group of OFDM symbols through the uplink multiplexing time-frequency resource indication fields in each subgroup.

[0080] For example, as Figure 5cAs shown in the figure, the first frequency-domain resource includes 2 OFDM symbols in the time domain, which are divided into 2 groups; in the frequency domain, it includes 2 sub-bands, namely Sub-band 0 and Sub-band 1, and each sub-band includes 4 resource blocks. The first information includes 8 uplink multiplexing time-frequency resource indication fields, which are divided into 2 groups, and each uplink multiplexing time-frequency resource indication field occupies 1 bit; the first group includes 4 uplink multiplexing time-frequency resource indication fields, and the second group includes 4 uplink multiplexing time-frequency resource indication fields. The 4 uplink multiplexing time-frequency resource indication fields in the first group are used to indicate the resource blocks in the frequency domain corresponding to the first group of OFDM symbols, and each uplink multiplexing time-frequency resource indication field in the first group can indicate 2 resource blocks; the uplink multiplexing time-frequency resource indication fields in the second group are further divided into 2 subgroups, and each subgroup indicates the resource blocks on 1 sub-band Sub-band, so each uplink multiplexing time-frequency resource indication field in each subgroup can indicate two resource blocks. As Figure 5c shown, the 3rd, 4th, 7th, and 8th resource blocks in the frequency domain corresponding to the first group of OFDM symbols can be used as the uplink multiplexing frequency-domain resources of the terminal device; the 1st and 2nd resource blocks of Sub-band 0 and Sub-band 1 corresponding to the second group of OFDM symbols can be used as the uplink multiplexing frequency-domain resources of the terminal device.

[0081] It can be seen that this application proposes a method for determining uplink multiplexing time-frequency resources. The network device sends the first information, and the first information includes N uplink multiplexing time-frequency resource indication fields, and each indication field corresponds to a time-frequency resource position, where N is a positive integer; the terminal device receives the first information and determines the uplink multiplexing time-frequency resources from the first time-frequency resources based on the first information, and the first time-frequency resources are the reusable uplink time-frequency resources. This application proposes a determination scheme for the uplink multiplexing time-frequency resources of PUSCH distributed in an interlace manner, enabling the terminal device to know the physical resource blocks for uplink multiplexing in the frequency domain corresponding to the uplink multiplexing time-frequency resources and the OFDM symbols for uplink multiplexing in the time domain.

[0082] The above mainly introduces the solution of the embodiment of this application from the perspective of the execution process on the method side. It can be understood that in order for the electronic device to implement the above functions, it includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments provided in this article, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but this kind of implementation should not be considered to exceed the scope of this application.

[0083] Please refer to Figure 6 , Figure 6 which is a functional unit composition block diagram of a device 600 for determining uplink multiplexed time-frequency resources provided by an embodiment of the present application. The device 600 may be a terminal device or a network device. The device 600 includes: a transceiver unit 610 and a processing unit 620.

[0084] In a possible implementation, the device 600 is used to execute each process and step corresponding to the first communication device in the above resource allocation method.

[0085] The transceiver unit 610 is configured to receive first information, where the first information includes N uplink multiplexed time-frequency resource indication fields, and each indication field corresponds to a time-frequency resource position, and N is a positive integer;

[0086] The processing unit 620 is configured to determine uplink multiplexed time-frequency resources from first time-frequency resources based on the first information, where the first time-frequency resources are reusable uplink time-frequency resources.

[0087] Optionally, the first time-frequency resources include M OFDM symbols in the time domain, the first time-frequency resources include Y subbands in the frequency domain, and each subband includes L resource blocks, where M and L are positive integers, and Y is a positive integer greater than 1.

[0088] Optionally, the M OFDM symbols are divided into K groups, where K is a positive integer; specifically, the processing unit 620 is configured to: divide the N uplink multiplexed time-frequency resource indication fields into K groups based on the K groups, and the first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols, where is the floor function, and is the ceiling function; determine the uplink multiplexed frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in the K groups.

[0089] Optionally, the i-th group includes P uplink multiplexed time-frequency resource indication fields, the first Y uplink multiplexed time-frequency resource indication fields in the i-th group correspond to the subbands one by one, and the first uplink multiplexed time-frequency resource indication fields starting from the Y+1-th in the i-th group are used to indicate resource blocks, and the last uplink multiplexed time-frequency resource indication fields in the i-th group are used to indicate resource blocks, where P = N / K, Q = P - Y, and the i-th group is any one of the M groups;

[0090] The processing unit is specifically configured to: determine whether uplink multiplexed frequency-domain resources are included in the corresponding subbands in the frequency domain of the i-th group of OFDM symbols based on the first Y uplink multiplexed time-frequency resource indication fields in the i-th group; and determine the positions of the uplink multiplexed frequency-domain resources in the corresponding subbands based on the last Q uplink multiplexed time-frequency resource indication fields in the i-th group.

[0091] Optionally, the j-th group includes P uplink multiplexed time-frequency resource indication fields, and the first uplink multiplexed time-frequency resource indication fields in the j-th group are used to indicate resource blocks, and the last uplink multiplexed time-frequency resource indication fields in the j-th group are used to indicate resource blocks, where the j-th group is any one of the M groups;

[0092] The processing unit is specifically configured to: determine the positions of the uplink multiplexed frequency-domain resources in each of the subbands in the frequency domain corresponding to the j-th group of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in the j-th group.

[0093] Optionally, the r-th group includes Y subgroups, where each subgroup corresponds to one subband, and each subgroup includes P / Y uplink multiplexed time-frequency resource indication fields. The first uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks, and the last uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks, where the r-th group is any one of the M groups, and the t-th subgroup is any one of the Y subgroups;

[0094] The processing unit is specifically configured to: determine the positions of the uplink multiplexed frequency-domain resources in each of the subbands in the frequency domain corresponding to the r-th group of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in each subgroup of the r-th group.

[0095] In another possible implementation, the apparatus 600 is configured to execute each process and step corresponding to the first control node in the above resource allocation method.

[0096] The transceiver unit 610 is configured to send first information, where the first information is used for a terminal device to determine uplink multiplexed time-frequency resources from first time-frequency resources. The first information includes N uplink multiplexed time-frequency resource indication fields, and each indication field corresponds to a time-frequency resource position. The first time-frequency resources are reusable uplink time-frequency resources, and N is a positive integer.

[0097] Optionally, the first time-frequency resource includes M OFDM symbols in the time domain, and includes Y sub-bands in the frequency domain within the first time-frequency resource. Each of the sub-bands includes the L resource blocks, and M, Y, and L are all positive integers.

[0098] Optionally, the M OFDM symbols are divided into K groups, and K is a positive integer;

[0099] The processing unit 620 is further configured to: divide the N uplink multiplexed time-frequency resource indication fields into K groups based on the K groups, and the first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols, where is floor function, and is ceiling function.

[0100] Optionally, the i-th group includes P uplink multiplexed time-frequency resource indication fields. The first Y uplink multiplexed time-frequency resource indication fields in the i-th group correspond to the sub-bands one by one. The first uplink multiplexed time-frequency resource indication fields starting from the Y + 1-th in the i-th group are used to indicate resource blocks, and the last uplink multiplexed time-frequency resource indication fields in the i-th group are used to indicate resource blocks. P = N / K, Q = P - Y, and the i-th group is any one of the M groups.

[0101] Optionally, the j-th group includes P uplink multiplexed time-frequency resource indication fields. The first uplink multiplexed time-frequency resource indication fields in the j-th group are used to indicate resource blocks, and the last uplink multiplexed time-frequency resource indication fields in the j-th group are used to indicate resource blocks. The j-th group is any one of the M groups.

[0102] Optionally, the r-th group includes Y subgroups, and the subgroups correspond to the sub-bands one by one. Each subgroup includes P / Y uplink multiplexed time-frequency resource indication fields. The first uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks, and the last uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks. The r-th group is any one of the M groups, and the t-th subgroup is any one of the Y subgroups.

[0103] It should be understood that the device 600 here is embodied in the form of functional units. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a proprietary processor or a group of processors, etc.) and a memory, a combined logic circuit and / or other suitable components that support the described functions. In an alternative example, those skilled in the art can understand that the device 600 can specifically be the terminal device and the network device in the above embodiments. The device 600 can be used to execute each process and / or step corresponding to the terminal device and the network device in the above method embodiments. To avoid repetition, it will not be elaborated here.

[0104] The device 600 of each of the above solutions has the function of implementing the corresponding steps executed by the terminal device and the network device in the above method; the function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the processing unit 620 can be replaced by a processor, and the transceiver unit 610 can be replaced by a transmitter and a receiver, respectively performing the transceiver operations and related processing operations in each method embodiment.

[0105] In the embodiments of the present application, Figure 6 the device 600 in can also be a chip or a chip system, for example: a system on chip (SoC). Correspondingly, the transceiver unit can be the transceiver circuit of the chip, which is not limited here.

[0106] Please refer to Figure 7 , Figure 7 which is a computer device provided by an embodiment of the present application. The computer device includes: one or more processors, one or more memories, one or more communication interfaces, and one or more programs; the one or more programs are stored in the memory and are configured to be executed by the one or more processors.

[0107] In a possible implementation manner, the computer device is a terminal device, and the above program includes instructions for performing the following steps:

[0108] Receive first information, where the first information includes N uplink multiplexed time-frequency resource indication fields, and each indication field corresponds to a time-frequency resource position, and N is a positive integer;

[0109] Based on the first information, determine uplink multiplexed time-frequency resources from a first time-frequency resource, where the first time-frequency resource is a reusable uplink time-frequency resource.

[0110] Optionally, the first time-frequency resource includes M OFDM symbols in the time domain, the first time-frequency resource includes Y sub-bands in the frequency domain, each sub-band includes L resource blocks, both M and L are positive integers, and Y is a positive integer greater than 1.

[0111] Optionally, the M OFDM symbols are divided into K groups, where K is a positive integer; in determining the uplink multiplexing time-frequency resource based on the first information, the program further includes instructions for performing the following steps: dividing the N uplink multiplexing time-frequency resource indication fields into K groups based on the K groups, and the first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols, where is floor function, and is ceiling function; determining the uplink multiplexing frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexing time-frequency resource indication fields in the K groups.

[0112] Optionally, the i-th group includes P uplink multiplexing time-frequency resource indication fields, the first Y uplink multiplexing time-frequency resource indication fields in the i-th group correspond to the sub-bands one by one, and the first uplink multiplexing time-frequency resource indication fields starting from the Y + 1-th are used to indicate resource blocks, and the last uplink multiplexing time-frequency resource indication fields in the i-th group are used to indicate resource blocks, where P = N / K, Q = P - Y, and the i-th group is any one of the M groups;

[0113] In determining the uplink multiplexing frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexing time-frequency resource indication fields in the K groups, the program further includes instructions for performing the following steps: determining whether the corresponding sub-band in the frequency domain corresponding to the i-th group of OFDM symbols includes uplink multiplexing frequency-domain resources based on the first Y uplink multiplexing time-frequency resource indication fields in the i-th group; determining the positions of the uplink multiplexing frequency-domain resources in the corresponding sub-band based on the last Q uplink multiplexing time-frequency resource indication fields in the i-th group.

[0114] Optionally, the j-th group includes P uplink multiplexing time-frequency resource indication fields, and the first uplink multiplexing time-frequency resource indication fields are used to indicate resource blocks, and the last uplink multiplexing time-frequency resource indication fields are used to indicate resource blocks, and the j-th group is any one of the M groups;

[0115] In terms of determining the uplink multiplexing frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink time-frequency resource indication fields in the K groups, the program further includes instructions for performing the following steps: determining the positions of the uplink multiplexing frequency-domain resources in each of the subbands in the frequency domain corresponding to the j-th group of OFDM symbols based on the uplink time-frequency resource indication fields in the j-th group.

[0116] Optionally, the r-th group includes Y subgroups, the subgroups correspond to the subbands one by one, each subgroup includes P / Y uplink time-frequency resource indication fields, and the first uplink time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks, and the last uplink time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks, the r-th group is any one of the M groups, and the t-th subgroup is any one of the Y subgroups;

[0117] In terms of determining the uplink multiplexing frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink time-frequency resource indication fields in the K groups, the program further includes instructions for performing the following steps: determining the positions of the uplink multiplexing frequency-domain resources in each of the subbands in the frequency domain corresponding to the r-th group of OFDM symbols based on the uplink time-frequency resource indication fields in each subgroup of the r-th group.

[0118] In another possible implementation, the computer device is a network device, and the above program includes instructions for performing the following steps:

[0119] Sending first information, the first information is used for the terminal device to determine uplink time-frequency resources from the first time-frequency resources, the first information includes N uplink time-frequency resource indication fields, each indication field corresponds to a time-frequency resource position, the first time-frequency resources are reusable uplink time-frequency resources, and N is a positive integer.

[0120] Optionally, the first time-frequency resources include M OFDM symbols in the time domain, the first time-frequency resources include Y subbands in the frequency domain, each subband includes the L resource blocks, and M, Y, and L are all positive integers.

[0121] Optionally, the M OFDM symbols are divided into K groups, and K is a positive integer;

[0122] The program further includes instructions for performing the following steps: dividing the N uplink time-frequency resource indication fields into K groups based on the K groups, and the first A group is used to indicate the previous group of OFDM symbols, and the subsequent group is used to indicate the subsequent group of OFDM symbols, where is rounded down, and is rounded up.

[0123] Optionally, the i-th group includes P uplink multiplexing time-frequency resource indication fields. The first Y uplink multiplexing time-frequency resource indication fields in the i-th group correspond one-to-one with the subbands. The first uplink multiplexing time-frequency resource indication fields starting from the (Y + 1)-th in the i-th group are used to indicate resource blocks, and the subsequent uplink multiplexing time-frequency resource indication fields in the i-th group are used to indicate resource blocks. Here, P = N / K, Q = P - Y, and the i-th group is any one of the M groups.

[0124] Optionally, the j-th group includes P uplink multiplexing time-frequency resource indication fields. The first uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks, and the subsequent uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks. The j-th group is any one of the M groups.

[0125] Optionally, it is characterized in that the r-th group includes Y subgroups, which correspond one-to-one with the subbands. Each subgroup includes P / Y uplink multiplexing time-frequency resource indication fields. The first uplink multiplexing time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks, and the subsequent uplink multiplexing time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks. The r-th group is any one of the M groups, and the t-th subgroup is any one of the Y subgroups.

[0126] It should be understood that the above-mentioned memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0127] In the embodiments of the present application, the processor of the above device may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0128] It should be understood that the "at least one" involved in the embodiments of the present application refers to one or more, and the "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one (item)" or its similar expression below refers to any combination of these items, including any combination of single item (item) or plural items (items). For example, at least one (item) of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple.

[0129] Moreover, unless otherwise stated, the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects and are not used to limit the order, timing, priority, or importance of multiple objects. For example, the first information and the second information are only used to distinguish different information, rather than indicating differences in the content, priority, sending order, or importance of these two pieces of information, etc.

[0130] In the implementation process, each step of the above method can be completed by the integrated logic circuit in the hardware of the processor or the instructions in the form of software. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by the hardware processor, or executed and completed by the combination of the hardware and software units in the processor. The software unit may be located in a mature storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. This storage medium is located in the memory, and the processor executes the instructions in the memory and combines its hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0131] The embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, and the computer program enables the computer to execute some or all of the steps of any method recorded in the above method embodiments.

[0132] The embodiments of the present application also provide a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program. The computer program is operable to cause a computer to execute some or all of the steps of any one of the methods described in the above method embodiments. The computer program product can be a software installation package.

[0133] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0134] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical or other form.

[0135] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.

[0136] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0137] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to enable a computer device (which can be a personal computer, a server, or a TRP, etc.) to execute all or part of the steps of the methods in various embodiments of this application. The aforementioned memory includes various media that can store program codes, such as USB flash drives, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), external hard drives, magnetic disks, or optical discs.

[0138] 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. This program can be stored in a computer-readable memory, and the memory can include: flash drives, ROM, RAM, magnetic disks, or optical discs, etc.

[0139] The above has introduced the embodiments of this application in detail. Specific examples are used in this article to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A method for determining uplink multiplexing time-frequency resources, characterized in that, The method includes: Receiving first information, where the first information includes N uplink multiplexed time-frequency resource indication fields, each of the indication fields corresponding to a time-frequency resource position, and N is a positive integer; Based on the first information, determining uplink multiplexed time-frequency resources from first time-frequency resources, where the first time-frequency resources are reusable uplink time-frequency resources; The first time-frequency resources include M OFDM symbols in the time domain, and the first time-frequency resources include Y subbands in the frequency domain, each subband including L resource blocks, where M and L are both positive integers, and Y is a positive integer greater than 1; The M OFDM symbols are divided into K groups, where K is a positive integer; The determining of the uplink multiplexed time-frequency resources based on the first information includes: Divide the N uplink multiplexed time-frequency resource indication fields into K groups based on the K groups, where the first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols, where is floor, and is ceiling; Based on the uplink multiplexed time-frequency resource indication fields in the K groups, determining the uplink multiplexed frequency-domain resource positions corresponding to the K groups of OFDM symbols in the frequency domain; The i-th group includes P uplink multiplexing time-frequency resource indication fields. The first Y uplink multiplexing time-frequency resource indication fields in the i-th group correspond one-to-one with the sub-bands. The first uplink multiplexing time-frequency resource indication fields starting from the (Y + 1)-th in the i-th group are used to indicate resource blocks. The last uplink multiplexing time-frequency resource indication fields in the i-th group are used to indicate resource blocks. The , . The i-th group is any one of the M groups; The determining of the uplink multiplexed frequency-domain resource positions corresponding to the K groups of OFDM symbols in the frequency domain based on the uplink multiplexed time-frequency resource indication fields in the K groups includes: Based on the first Y uplink multiplexed time-frequency resource indication fields in the i-th group, determining whether the corresponding subband corresponding to the i-th group of OFDM symbols in the frequency domain includes uplink multiplexed frequency-domain resources; Based on the last Q uplink multiplexed time-frequency resource indication fields in the i-th group, determining the positions of the uplink multiplexed frequency-domain resources in the corresponding subband.

2. The method according to claim 1, characterized in that, The j-th group includes P uplink multiplexing time-frequency resource indication fields, and the first of the uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks, and the last of the uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks, where the j-th group is any one of the M groups; The determining of the uplink multiplexed frequency-domain resource positions corresponding to the K groups of OFDM symbols in the frequency domain based on the uplink multiplexed time-frequency resource indication fields in the K groups includes: Based on the uplink multiplexed time-frequency resource indication fields in the j-th group, determining the positions of the uplink multiplexed frequency-domain resources in each of the subbands corresponding to the j-th group of OFDM symbols in the frequency domain.

3. The method according to claim 1 or 2, characterized in that, The r-th group includes Y subgroups, and the subgroups correspond to the sub-bands one by one. Each subgroup includes P / Y uplink multiplexed time-frequency resource indication fields. The first uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks, and the last uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks. The r-th group is any one of the M groups, and the t-th subgroup is any one of the Y subgroups; The determining of the uplink multiplexed frequency-domain resource positions corresponding to the M groups of OFDM symbols in the frequency domain based on the uplink multiplexed time-frequency resource indication fields in the M groups includes: Based on the uplink multiplexed time-frequency resource indication fields of each subgroup in the r-th group, determining the positions of the uplink multiplexed frequency-domain resources in each of the subbands corresponding to the r-th group of OFDM symbols in the frequency domain.

4. A method for determining uplink multiplexing time-frequency resources, characterized in that, The method includes: Sending first information, where the first information is used for a terminal device to determine uplink multiplexed time-frequency resources from first time-frequency resources, the first information includes N uplink multiplexed time-frequency resource indication fields, each of the indication fields corresponding to a time-frequency resource position, the first time-frequency resources are reusable uplink time-frequency resources, and N is a positive integer; The first time-frequency resources include M OFDM symbols in the time domain, and the first time-frequency resources include Y subbands in the frequency domain, each subband including L resource blocks, where M, Y, and L are all positive integers; The M OFDM symbols are divided into K groups, where K is a positive integer; The method further includes: Based on the K groups, divide the N uplink multiplexed time-frequency resource indication fields into K groups. The first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols, where is floor function, and is ceiling function; The i-th group includes P uplink multiplexing time-frequency resource indication fields. The first Y uplink multiplexing time-frequency resource indication fields in the i-th group correspond one-to-one with the subbands. The first uplink multiplexing time-frequency resource indication fields starting from the (Y + 1)-th in the i-th group are used to indicate resource blocks. The last uplink multiplexing time-frequency resource indication fields in the i-th group are used to indicate resource blocks. The , . The i-th group is any one of the M groups.

5. The method according to claim 4, characterized in that, The j-th group includes P uplink multiplexing time-frequency resource indication fields, and the first uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks, and the last uplink multiplexing time-frequency resource indication fields in the j-th group are used to indicate resource blocks. The j-th group is any one of the M groups.

6. The method according to claim 4 or 5, characterized in that, The r-th group includes Y subgroups, and the subgroups correspond one by one to the subbands. Each subgroup includes P / Y uplink multiplexed time-frequency resource indication fields. The first uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks. The last uplink multiplexed time-frequency resource indication fields in the t-th subgroup are used to indicate resource blocks. The r-th group is any one of the M groups, and the t-th subgroup is any one of the Y subgroups.

7. An apparatus for determining uplink multiplexing time-frequency resources, characterized in that, The apparatus includes: A transceiver unit, configured to receive first information, where the first information includes N uplink multiplexed time-frequency resource indication fields, each of the indication fields corresponding to a time-frequency resource position, and N is a positive integer; A processing unit, configured to determine uplink multiplexed time-frequency resources from a first time-frequency resource based on the first information, where the first time-frequency resource is a reusable uplink time-frequency resource; The first time-frequency resource includes M OFDM symbols in the time domain, and the first time-frequency resource includes Y subbands in the frequency domain. Each subband includes L resource blocks, where both M and L are positive integers, and Y is a positive integer greater than 1; The M OFDM symbols are divided into K groups, where K is a positive integer; The determining of the uplink multiplexed time-frequency resources based on the first information includes: Based on the K groups, divide the N uplink multiplexed time-frequency resource indication fields into K groups. The first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols. Here, is floor function, and is ceiling function. Determining the uplink multiplexed frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in the K groups; The i-th group includes P uplink multiplexing time-frequency resource indication fields. The first Y uplink multiplexing time-frequency resource indication fields in the i-th group correspond one-to-one with the sub-bands. The first uplink multiplexing time-frequency resource indication fields starting from the (Y + 1)-th in the i-th group are used to indicate resource blocks. The last uplink multiplexing time-frequency resource indication fields in the i-th group are used to indicate resource blocks. The , . The i-th group is any one of the M groups; The determining of the uplink multiplexed frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in the K groups includes: Determining whether the corresponding subband in the frequency domain corresponding to the i-th group of OFDM symbols includes uplink multiplexed frequency-domain resources based on the first Y uplink multiplexed time-frequency resource indication fields in the i-th group; Determining the positions of the uplink multiplexed frequency-domain resources in the corresponding subband based on the last Q uplink multiplexed time-frequency resource indication fields in the i-th group.

8. An apparatus for determining uplink multiplexing time-frequency resources, characterized in that, The apparatus includes: A transceiver unit, configured to send the first information, where the first information is used for a terminal device to determine uplink multiplexed time-frequency resources from a first time-frequency resource. The first information includes N uplink multiplexed time-frequency resource indication fields, and each indication field corresponds to a time-frequency resource position. The first time-frequency resource is a reusable uplink time-frequency resource, and N is a positive integer; The first time-frequency resource includes M OFDM symbols in the time domain, and the first time-frequency resource includes Y subbands in the frequency domain. Each subband includes L resource blocks, where both M and L are positive integers, and Y is a positive integer greater than 1; The M OFDM symbols are divided into K groups, where K is a positive integer; The transceiver unit is further configured to: Based on the K groups, divide the N uplink multiplexed time-frequency resource indication fields into K groups. The first groups are used to indicate the first groups of OFDM symbols, and the last groups are used to indicate the last groups of OFDM symbols. Here, is floor operation, and is ceiling operation. Determine the uplink multiplexed frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in the K groups; The i-th group includes P uplink multiplexing time-frequency resource indication fields. The first Y uplink multiplexing time-frequency resource indication fields in the i-th group correspond one-to-one with the subbands. The first uplink multiplexing time-frequency resource indication fields starting from the (Y + 1)-th in the i-th group are used to indicate resource blocks. The last uplink multiplexing time-frequency resource indication fields in the i-th group are used to indicate resource blocks. The , . The i-th group is any one of the M groups; The determining of the uplink multiplexed frequency-domain resource positions in the frequency domain corresponding to the K groups of OFDM symbols based on the uplink multiplexed time-frequency resource indication fields in the K groups includes: Determining whether the corresponding subband in the frequency domain corresponding to the i-th group of OFDM symbols includes uplink multiplexed frequency-domain resources based on the first Y uplink multiplexed time-frequency resource indication fields in the i-th group; Determining the positions of the uplink multiplexed frequency-domain resources in the corresponding subband based on the last Q uplink multiplexed time-frequency resource indication fields in the i-th group.

9. A terminal device, characterized in that, The terminal device includes a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and are configured to be executed by the processor. The programs include instructions for performing the steps in the method according to any one of claims 1-3.

10. A network device, characterized in that, The network device includes a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the processor. The programs include instructions for performing the steps in the method according to any one of claims 4-6.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program for electronic data exchange. The computer program causes a computer to perform the steps of the method according to any one of claims 1-3, or to perform the steps of the method according to any one of claims 4-6.

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