Method, device and computer storage medium for communication

Abstract

Embodiments of the present disclosure relate to methods, devices, and computer-readable media for communication. A communication method includes: receiving control information from a second device at a first device; determining a transmission control indication (TCI) code point from the control information, the TCI code point indicating at least a first TCI state and a second TCI state for communicating data with the second device on a physical shared channel; determining a first configuration for communicating the repetition of the data with the second device in response to the number of repetitions of the data configured to be scheduled by the control information, the first configuration assigning the first TCI state and the second TCI state to the repetition of the data; and communicating the repetition of the data with the second device on the physical shared channel based at least on the first configuration.

Description

Technical Field

[0001] Embodiments of the present disclosure relate generally to the field of telecommunications, and more particularly to methods, devices, and computer storage media for communications. Background Art

[0002] In new radio access (NR), a network device (e.g., next generation Node B (gNB)) may be equipped with multiple transmit and receive points (TRPs) or antenna panels. That is, the network device may communicate with a terminal device (e.g., user equipment (UE)) via one or more of the multiple TRPs or antenna panels, which is also referred to as "multi-TRP communication".

[0003] In some multi-TCP communication schemes, a single downlink control information (DCI) can be used to schedule multiple physical downlink shared channels (PDSCH) or physical uplink shared channels (PUSCH) repetitions to achieve better performance. Different versions of redundancy can be included in the number of repetitions. The DCI may include a field indicating a redundant version sequence (hereinafter also referred to as an "RV sequence") to be applied to the number of repetitions. In addition, the DCI may also include a transmission configuration indication (TCI) field, which may indicate at least two TCI states. The TCI state may indicate a reference signal (RS) set and a parameter that configures the quasi-co-location (QCL) relationship between the RS in the RS set and the demodulation reference signal (DMRS) port for PDSCH or PUSCH. In this case, it is necessary to specify how to assign the TCI state and / or RV sequence to the number of repetitions. Summary of the invention

[0004] Generally speaking, example embodiments of the present disclosure provide methods, devices, and computer storage media for communications.

[0005] In a first aspect, a communication method is provided. The method includes: receiving control information from a second device at a first device; determining a transmission control indication (TCI) code point from the control information, the TCI code point indicating at least a first TCI state and a second TCI state for communicating data with the second device on a physical shared channel; in response to a certain number of repetitions of the data being configured to be scheduled by the control information, determining a first configuration for communicating the repetitions of the data with the second device, the first configuration assigning the first TCI state and the second TCI state to the repetitions of the data; and communicating the repetitions of the data with the second device over the physical shared channel based at least on the first configuration.

[0006] In a second aspect, a communication method is provided. The method includes: sending control information from a second device to a first device, the control information including a transmission control indication (TCI) code point, and the TCI code point indicating at least a first TCI state and a second TCI state for communicating data with the first device on a physical shared channel; in response to a certain number of repetitions of the data being configured to be scheduled by the control information, determining a first configuration for communicating the repetitions of the data with the first device, the first configuration assigning the first TCI state and the second TCI state to the repetitions of the data; and communicating the repetitions of the data with the first device on the physical shared channel based at least on the first configuration.

[0007] In a third aspect, a communication device is provided. The device includes a processor and a memory. The memory is coupled to the processor and stores instructions thereon. The instructions, when executed by the processor, cause the device to perform the following actions: receiving control information from a second device at a first device; determining a transmission control indication (TCI) code point from the control information, the TCI code point indicating at least a first TCI state and a second TCI state for communicating data with the second device on a physical shared channel; in response to a certain number of repetitions of the data being configured to be scheduled by the control information, determining a first configuration for communicating the repetitions of the data with the second device, the first configuration assigning the first TCI state and the second TCI state to the repetitions of the data; and communicating the repetitions of the data with the second device on the physical shared channel based at least on the first configuration.

[0008] In a fourth aspect, a communication device is provided. The device includes a processor and a memory. The memory is coupled to the processor and stores instructions thereon. The instructions, when executed by the processor, cause the device to perform the following actions: send control information from a second device to a first device, the control information including a transmission control indication (TCI) code point, and the TCI code point indicates at least a first TCI state and a second TCI state for communicating data with the first device on a physical shared channel; in response to a certain number of repetitions of the data being configured to be scheduled by the control information, determine a first configuration for communicating the repetition of the data with the first device, the first configuration assigning the first TCI state and the second TCI state to the repetition of the data; and communicate the repetition of the data with the first device on the physical shared channel based at least on the first configuration.

[0009] In a fifth aspect, there is provided a computer readable medium having instructions stored thereon, wherein the instructions, when executed on at least one processor, cause the at least one processor to perform the method according to the first aspect.

[0010] In a sixth aspect, there is provided a computer readable medium having instructions stored thereon, wherein the instructions, when executed on at least one processor, cause the at least one processor to perform the method according to the second aspect.

[0011] Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of some embodiments of the present disclosure in the accompanying drawings, in which:

[0013] Figure 1 shows an example communication network in which some embodiments of the present disclosure may be implemented;

[0014] Figure 2 shows an example signaling diagram illustrating an example process according to some embodiments of the present disclosure;

[0015] FIG. 3A to FIG. 3C An example diagram for assigning TCI states to different PDSCH repetitions according to some embodiments of the present disclosure is shown;

[0016] FIG. 4A to FIG. 4B An example diagram for assigning TCI states to different PDSCH repetitions according to some embodiments of the present disclosure is shown;

[0017] FIG. 5A to FIG. 5G An example diagram for assigning RVs to different PDSCH repetitions according to some embodiments of the present disclosure is shown;

[0018] Figure 6 An example method according to some embodiments of the present disclosure is shown;

[0019] Figure 7 illustrates example methods according to some embodiments of the present disclosure; and

[0020] Figure 8 is a simplified block diagram of a device suitable for implementing embodiments of the present disclosure.

[0021] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0022] The principle of the present disclosure will now be described with reference to some example embodiments. It should be understood that these embodiments are described only to illustrate and help those skilled in the art to understand and realize the purpose of the present disclosure, and do not imply any limitation on the scope of the disclosure. The disclosure described herein can be implemented in various ways different from the way described below.

[0023] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0024] As used herein, the singular forms "a," "an," and "the"

[0025] (the) is also intended to include plural forms unless the context clearly indicates otherwise. The term "include" and its variations should be interpreted as open-ended terms, which mean "including but not limited to". The term "based on" should be understood as "based at least in part on". The terms "one embodiment" and "embodiment" should be understood as "at least one embodiment". The term "another embodiment" should be understood as "at least one other embodiment". The terms "first", "second", etc. can refer to different or identical objects. Other explicit and implicit definitions may be included below.

[0026] In some examples, values, processes, or devices are referred to as "best," "lowest," "highest," "minimum," "maximum," etc. It should be understood that such descriptions are intended to indicate that a selection may be made among a number of functional alternatives used, and that such a selection is not necessarily better, lesser, higher, or more preferred than other selections.

[0027] Figure 1 1 shows an example communication network 100 in which embodiments of the present disclosure may be implemented. Figure 1 As shown, network 100 includes a network device 110 coupled to two TRPs / panels 120-1 and 120-2 (collectively referred to as TRPs 120 or individually referred to as TRPs 120). Network 100 also includes a terminal device 130 served by network device 110. It should be understood that Figure 1 The number of network devices, terminal devices, and TRPs shown is for illustration purposes only and does not imply any limitation. Network 200 may include any suitable number of devices suitable for implementing embodiments of the present disclosure.

[0028] As used herein, the term "terminal device" refers to any device with wireless or wired communication capabilities. Examples of terminal devices include, but are not limited to, user equipment (UE), personal computers, desktops, mobile phones, cellular phones, smart phones, personal digital assistants (PDAs), portable computers, image capture devices such as digital cameras, gaming devices, music storage and playback devices, or Internet devices capable of wireless or wired Internet access and browsing, etc. For the purpose of discussion, some embodiments will be described below with reference to UE as an example of terminal device 130.

[0029] As used herein, the term "network device" or "base station" (BS) refers to a device that can provide or accommodate a cell or coverage with which a terminal device can communicate. Examples of network devices include, but are not limited to, Node B (Node B or NB), Evolved Node B (eNodeB or eNB), Next Generation Node B (gNB), Remote Radio Unit (RRU), Radio Head (RH), Remote Radio Head (RRH), low power nodes such as femto nodes, pico nodes, etc.

[0030] As used herein, the term "TRP" refers to an antenna array (having one or more antenna elements) available to a network device located in a particular geographic location. For example, a network device may couple with multiple TRPs in different geographic locations to achieve better coverage. It should be understood that a TRP may also be referred to as a "panel," which also refers to an antenna array (having one or more antenna elements) or a group of antennas.

[0031] like Figure 1 As shown, the network device 110 can communicate with the terminal device 130 via TRP 120-1 and TRP 120-2. Hereinafter, TRP 120-1 may also be referred to as a first TRP, and TRP 120-2 may also be referred to as a second TRP. Each TRP 120 may provide a plurality of beams for communicating with the terminal device 130.

[0032] The communication in the network 100 may conform to any suitable standard, including but not limited to Long Term Evolution (LTE), LTE Evolution (LTE-Evolution), Advanced LTE (LTE-A), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), and Global System for Mobile Communications (GSM). In addition, the communication may be performed according to any generation of communication protocols currently known or to be developed in the future. Examples of communication protocols include but are not limited to first generation (1G) communication protocols, second generation (2G), 2.5G, 2.75G communication protocols, third generation (3G) communication protocols, fourth generation (4G), 4.5G communication protocols, and fifth generation (5G) communication protocols.

[0033] As described above, in some multi-TCP communication schemes, a single DCI can be used to schedule multiple PDSCH or PUSCH repetitions to achieve better performance. Different versions of redundancy can be included in the number of repetitions. The DCI may include a field indicating the RV sequence to be applied to the number of repetitions. In addition, the DCI may also include a TCI field, which may indicate at least two TCI states. The TCI state may indicate an RS set and a parameter that configures the QCL relationship between the RS in the RS set and the DMRS port of the physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH). In this case, it is necessary to specify how to assign the TCI state and / or RV sequence to the number of repetitions.

[0034] An exemplary embodiment of the present disclosure provides a solution for multi-TRP communication. The solution can assign TCI states and / or RV sequences to multiple PDSCH or PUSCH repetitions to achieve better decoding performance of PDSCH or PUSCH.

[0035] Figure 2 An example signaling diagram illustrating an example process 200 according to some embodiments of the present disclosure is shown. Figure 2 As shown, process 200 may involve a first device 201 and a second device 202. In some embodiments, for example, first device 201 may be Figure 1 In some embodiments, for example, the second device 202 may be Figure 1 The illustrated network device 110 or TRP 120. It should be understood that process 200 may include additional actions not shown and / or may omit some of the actions shown, and the scope of the present disclosure is not limited in this regard.

[0036] like Figure 2As shown, the second device 202 may send 210 control information (e.g., DCI) to the first device 201. The control information may schedule the number of repetitions of the PDSCH or PUSCH. The control information may include information for scheduling the PDSCH (e.g., repetitions of the PDSCH) or the PUSCH (e.g., repetitions of the PUSCH). In response to receiving the control information from the second device 202, the first device 201 may determine 220 information for scheduling the PDSCH or the PUSCH based on the control information. The first device 201 may determine 230 one or more configurations based on the information for receiving one or more repetitions of the PDSCH from the second device or for sending one or more repetitions of the PUSCH to the second device. Accordingly, the second device 202 may also determine 240 information for scheduling the PDSCH or the PUSCH included in the control information. The second device 202 may also determine 250 one or more configurations based on the information for sending one or more repetitions of the PDSCH to the first device 201 or for receiving one or more repetitions of the PUSCH from the first device 201. It should be understood that the second device 202 can determine one or more configurations in the same manner as the first device 201.

[0037] like Figure 2 As shown, the second device 202 may communicate 260 the repetition with the first device 201 based on the determined one or more configurations. For example, the second device 202 may send repetitions of the PDSCH to the first device 201 based on the determined one or more configurations. Accordingly, the first device 201 may receive repetitions of the PDSCH from the second device 202 based on the determined one or more configurations. Alternatively, the first device 201 may send repetitions of the PUSCH to the second device 202 based on the determined one or more configurations. Accordingly, the second device 202 may receive repetitions of the PUSCH from the first device 201 based on the determined one or more configurations.

[0038] In the following, some embodiments of the present disclosure will be described with reference to PDSCH. It should be understood that this is for illustrative purposes only and does not imply any limitation on the scope of the present disclosure. Embodiments of the present disclosure may also be applicable to PUSCH.

[0039] In some embodiments, the control information sent from the second device 202 to the first device 201 may include a TCI field. For example, the TCI field may include 3 bits, and the value of the TCI field may be referred to as a "TCI code point". In some embodiments, at least one TCI code point may be configured with K TCI states, where K is an integer and K>1. In some embodiments, for example, K=2. In some embodiments, before sending control information to the first device 201, the second device 202 may first configure multiple TCI states to the first device 201, for example, via radio resource control (RRC) signaling. The second device 202 may then configure K TCI states selected from multiple TCI states to the first device 201 for each TCI code point, for example, via media access control (MAC) layer signaling.

[0040] In some embodiments, the first device 201 may be configured with a parameter N (where N is an integer and N ≥ 1) regarding the number of PDSCH repetitions to be scheduled by the control information. For example, the second device 202 may configure the parameter N to the first device 201 via RRC signaling, MAC layer signaling, or physical layer signaling. In response to configuring the parameter N, the first device 201 may determine the number of PDSCH repetitions to be scheduled by the control information. In some embodiments, the parameter N is configured for one TCI state. That is, the total number of PDSCH repetitions scheduled by the control information may be N*K. For example, if N=1 and K=2, the total number of PDSCH repetitions scheduled by the control information is 2. Alternatively, in some embodiments, the parameter N is configured for all K TCI states. That is, the total number of PDSCH repetitions scheduled by the control information may be N, and for each TCI state, the number of PDSCH repetitions may be N / K. For example, if N=2 and K=2, the total number of PDSCH repetitions scheduled by the control information is 2, and the number of PDSCH repetitions for each TCI state is 1.

[0041] In some embodiments, the value of N should be equal to or greater than the value of K. Alternatively, in some embodiments, parameter N is configured for all K TCI states. That is, the total number of PDSCH repetitions scheduled by control information can be N. For example, for the first M TCI states (where M is an integer and 1 ≤ M < N), the number of PDSCH repetitions can be ceil(N / K), and for the remaining N - M TCI states, the number of PDSCH repetitions can be (N - M * ceil(N / K)) / (N - M) or floor(N / K). For example, if N = 4 and K = 3, the total number of PDSCH repetitions scheduled by control information is 4, the number of PDSCH repetitions for the first TCI state is 2, and the number of PDSCH repetitions for the remaining two TCI states is 1. For another example, if N = 8 and K = 3, the total number of PDSCH repetitions to be scheduled by control information is 8, the number of PDSCH repetitions for the first two TCI states is 3, and the number of PDSCH repetitions for the last TCI state is 2.

[0042] Alternatively, in some embodiments, parameter N is configured for all K TCI states. That is, the total number of PDSCH repetitions scheduled by control information can be N. For example, for the first M TCI states (where M is an integer and 1 ≤ M < N), the number of PDSCH repetitions can be floor(N / K), and for the remaining N - M TCI states, the number of PDSCH repetitions can be (N - M * floor(N / K)) / (N - M) or ceil(N / K). For example, if N = 4 and K = 3, the total number of PDSCH repetitions scheduled by control information is 4, the number of PDSCH repetitions for the first two TCI states is 1, and the number of PDSCH repetitions for the last TCI state is 1. For another example, if N = 8 and K = 3, the total number of PDSCH repetitions to be scheduled by control information is 8, the number of PDSCH repetitions for the first TCI state is 2, and the number of PDSCH repetitions for the remaining two TCI states is 3.

[0043] In some embodiments, if the control information sent from the second device 202 to the first device 201 indicates a TCI code point and the TCI code point is configured with K TCI states (where K is an integer and K>1), the first device 201 can determine the first TCI state (hereinafter referred to as "TCI A") and the remaining K-1 TCI states for PDSCH reception. In some embodiments, if the first device 201 is configured with the number of PDSCH repetitions, the first TCI state (i.e., TCI A) can be used for the first of the number of PDSCH repetitions. That is, the second device 202 can send a starting PDSCH repetition to the first device 201 based on the first TCI state. The first device 201 can receive a starting PDSCH repetition from the second device 202 based on the first TCI state.

[0044] In some embodiments, if the control information sent from the second device 202 to the first device 201 indicates a TCI code point and the TCI code point is configured with K TCI states (where K is an integer and K>1), the first device 201 can at least determine a first TCI state (hereinafter referred to as "TCI A") and a second TCI state (hereinafter referred to as "TCIB") to be used for PDSCH reception. In addition, if K>2, the first device 201 can also determine a third TCI state (hereinafter referred to as "TCI C") and / or a fourth TCI state (hereinafter referred to as "TCI D") to be used for PDSCH reception. In some embodiments, if the first device 201 is configured with a total number of PDSCH repetitions N (where N is an integer and N≥K), the first TCI state (i.e., TCI A) can be used for the first to N / Kth PDSCH repetitions, and the second TCI state (i.e., TCI B) can be used for the N / K+1th to N / K*2th PDSCH repetitions. Alternatively or additionally, if a third TCI state is determined, the third TCI state (i.e., TCI C) may be used for the N / K*2+1th to N / K*3th PDSCH repetitions, and / or if a fourth TCI state is determined, the fourth TCI state (i.e., TCI D) may be used for the N / K*3+1th to N / K*4th PDSCH repetitions.

[0045] For example, if K=2 and N=2, the first TCI state may be used for the first PDSCH repetition, and the second TCI state may be used for the second PDSCH repetition. For another example, if K=2 and N=4, the first TCI state may be used for the first PDSCH repetition and the second PDSCH repetition, and the second TCI state may be used for the third PDSCH repetition and the fourth PDSCH repetition. For another example, if K=2 and N=8, the first TCI state may be used for the first PDSCH repetition to the fourth PDSCH repetition, and the second TCI state may be used for the fifth PDSCH repetition to the eighth PDSCH repetition. For another example, if K=4 and N=4, the first TCI state may be used for the first PDSCH repetition, the second TCI state may be used for the second PDSCH repetition, the third TCI state may be used for the third PDSCH repetition, and the fourth TCI state may be used for the fourth PDSCH repetition. For another example, if K=4 and N=8, the first TCI state may be used for the first PDSCH repetition and the second PDSCH repetition, the second TCI state may be used for the third PDSCH repetition and the fourth PDSCH repetition, the third TCI state may be used for the fifth PDSCH repetition and the sixth PDSCH repetition, and the fourth TCI state may be used for the seventh PDSCH repetition and the eighth PDSCH repetition. For another example, if K=3 and N=4, the first TCI state may be used for the first PDSCH repetition, the second TCI state may be used for the second PDSCH repetition, and the third TCI state may be used for the third PDSCH repetition and the fourth PDSCH repetition. For another example, if K=3 and N=4, the first TCI state may be used for the first PDSCH repetition and the second PDSCH repetition, the second TCI state may be used for the third PDSCH repetition, and the third TCI state may be used for the fourth PDSCH repetition. For another example, if K=3 and N=8, the first TCI state may be used for the first PDSCH repetition to the third PDSCH repetition, the second TCI state may be used for the fourth PDSCH repetition to the sixth PDSCH repetition, and the third TCI state may be used for the seventh PDSCH repetition and the eighth PDSCH repetition. For another example, if K=3 and N=8, the first TCI state may be used for the first PDSCH repetition and the second PDSCH repetition, the second TCI state may be used for the third PDSCH repetition to the fifth PDSCH repetition, and the third TCI state may be used for the sixth PDSCH repetition to the eighth PDSCH repetition.

[0046] In some embodiments, if the control information sent from the second device 202 to the first device 201 indicates a TCI code point, and the TCI code point is configured with K TCI states (where K=2), the first device 201 may determine a first TCI state (hereinafter referred to as "TCI A") and a second TCI state (hereinafter referred to as "TCI B") for PDSCH reception. In some embodiments, if the first device 201 is configured with the number of PDSCH repetitions, the first TCI state (i.e., TCI A) may be used for the first of the number of PDSCH repetitions. That is, the second device 202 may send a start PDSCH repetition to the first device 201 based on the first TCI state. The first device 201 may receive a start PDSCH repetition from the second device 202 based on the first TCI state.

[0047] In some embodiments, different time resources and / or frequency resources may be configured for the number of PDSCH repetitions. In some embodiments, in the case of time domain multiplexing (TDM), different time resources (e.g., different time slots or sub-time slots) may be configured for the number of PDSCH repetitions. The start PDSCH repetition may be sent / received based on the earliest one of the time resources. Alternatively, in some embodiments, in the case of frequency domain multiplexing (FDM), different frequency resources may be configured for the number of PDSCH repetitions. The start PDSCH repetition may be sent / received based on the lowest or highest one of the frequency resources and / or based on the first indicated frequency resource in the resource allocation field of the configuration for allocating frequency resources.

[0048] In some embodiments, in response to control information indicating a TCI code point sent from the second device 202 to the first device 201 and the TCI code point is configured with K TCI states (where K=2), the first device 201 may determine a first TCI state (hereinafter referred to as "TCI A") and a second TCI state (hereinafter referred to as "TCI B") for PDSCH reception. In some embodiments, in response to the number of PDSCH repetitions configured to be scheduled by the control information, the first device 201 may determine a first configuration for the number of PDSCH repetitions received from the second device 202. In some embodiments, the first configuration may assign the first TCI state and the second TCI state to the number of PDSCH repetitions. In some embodiments, the first configuration for assigning TCI states to different PDSCH repetitions may be determined based at least on a multiplexing scheme associated with resource allocations for different PDSCH repetitions. The multiplexing scheme is also referred to hereinafter as a "repetition scheme" and includes, but is not limited to, TDM, FDM, or a combination of FDM and TDM. For example, FIG. 3A to FIG. 3C An example diagram showing the assignment of TCI states to different PDSCH repetitions under different repetition schemes.

[0049] Figure 3A An example for the TDM case is shown. Figure 3A In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 4. For example, Figure 3A As shown, four PDSCH transmission opportunities 310, 320, 330 and 340 are configured to be scheduled by a single DCI. Figure 3A In the example, it is also assumed that K=2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In some embodiments, Figure 3A As shown, the first two PDSCH repetitions 310 and 320 may be transmitted / received based on TCI A, and the remaining two PDSCH repetitions 330 and 340 may be transmitted / received based on TCI B.

[0050] Figure 3B An example is shown in which FDM is combined with TDM. Figure 3B In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 4. For example, Figure 3B As shown, four PDSCH transmission opportunities 310, 320, 330 and 340 are configured to be scheduled by a single DCI. Figure 3B In the example, it is also assumed that K=2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In some embodiments, Figure 3B As shown, PDSCH repetitions 310 and 330 associated with one frequency resource (e.g., the higher one of two frequency resources) can be sent / received based on TCI A, while the remaining PDSCH repetitions 320 and 340 associated with another frequency resource (e.g., the lower one of the two frequency resources) can be sent / received based on TCI B.

[0051] Figure 3C An example is shown in which FDM is combined with TDM. Figure 3C In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 4. For example, Figure 3C As shown, four PDSCH transmission opportunities 310, 320, 330 and 340 are configured to be scheduled by a single DCI. Figure 3B In , it is also assumed that K = 2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In addition, Figure 3C In the case where frequency hopping can be enabled, for example, the resource allocation for different frequency ranges can be the same, and / or the modulation and coding scheme (MCS) for different frequency ranges can be the same. Figure 3CAs shown, PDSCH repetitions 310 and 340 having different frequency ranges associated with the same resource allocation or the same MCS may be transmitted / received based on TCI A, while the remaining PDSCH repetitions 320 and 330 having different frequency ranges associated with the same resource allocation or the same MCS may be transmitted / received based on TCI B. In some embodiments, in the case of a combination of FDM and TDM, whether frequency hopping is enabled may be configured by the second device 202 to the first device 201, for example, via RRC signaling or DCI.

[0052] In some embodiments, the order of PDSCH repetitions may be different for different repetition schemes. In some embodiments, the start PDSCH repetition may be sent / received based on a first TCI state (e.g., TCI A) by default. Alternatively, in some embodiments, the order of PDSCH repetitions and the allocation of different TCI states to different PDSCH repetitions may be dynamically indicated to the first device 201 by the second device 202, for example, via DCI.

[0053] In some embodiments, the order of PDSCH repetitions may depend on the slot format configuration. For example, in the case where the total number of PDSCH repetitions is configured, the slot format configuration may enable only a portion of the PDSCH repetitions. In some embodiments, in this case, a first configuration for assigning TCI states to different PDSCH repetitions may be determined so that the same TCI state is assigned to enabled adjacent PDSCH repetitions and different TCI states are evenly distributed among the enabled PDSCH repetitions.

[0054] In some embodiments, assuming that TCI A and TCI B are used for PDSCH transmission / reception, if the total number of PDSCH repetitions is M, and P PDSCH repetitions out of a total of M PDSCH repetitions are disabled by the time slot format configuration, TCI A will be used ceil((MP) / 2) times, and TCI B will be used floor((MP) / 2) times. Figure 4A and Figure 4B An example of such an embodiment is shown.

[0055] In some embodiments, assuming that TCI A and TCI B will be used for PDSCH transmission / reception, if the total number of PDSCH repetitions is M, and P PDSCH repetitions out of a total of M PDSCH repetitions are disabled by the time slot format configuration, TCI A will be used floor((MP) / 2) times, and TCI B will be used ceil((MP) / 2) times.

[0056] Figure 4A A normal situation is shown where no PDSCH repetition is disabled. Figure 4A In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 8. For example, Figure 4A As shown, eight PDSCH transmission opportunities 410, 420, 430, 440, 450, 460, 470, and 480 are configured to be scheduled by a single DCI. Figure 4A In the example, it is also assumed that K=2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In some embodiments, Figure 4A As shown, the first four PDSCH repetitions 410 to 440 may be transmitted / received based on TCI A, while the remaining four PDSCH repetitions 450 to 480 may be transmitted / received based on TCI B. Figure 4B Shown is the time slot format configuration to disable Figure 4A Another case where PDSCH repeats 450, 460 and 470 in the example. In this case, Figure 4B As shown, PDSCH repetitions 410 to 430 may be transmitted / received based on TCI A, while PDSCH repetitions 440 and 480 may be transmitted / received based on TCI B.

[0057] In some embodiments, in response to control information indicating a TCI code point sent from the second device 202 to the first device 201 and the TCI code point is configured with K TCI states (where K=2), the first device 201 may determine a first TCI state (hereinafter represented as "TCI A") and a second TCI state (hereinafter represented as "TCI B") for PDSCH reception. In some embodiments, in response to the number of PDSCH repetitions configured as scheduled by the control information, the first device 201 may determine a first configuration for receiving the number of PDSCH repetitions from the second device 202. For example, the first configuration may assign the first TCI state and the second TCI state to the number of PDSCH repetitions. In some embodiments, the control information sent from the second device 202 to the first device 201 may also include an RV indication field (hereinafter represented as "RV id ”), the RV indication field may indicate an RV sequence to be applied to the PDSCH repetition. For example, the RV field may use 2 bits. In some embodiments, the first device 201 may determine an indication of the RV sequence based on the control information, and determine a second configuration based at least on the indication for receiving the PDSCH repetition from the second device 202. For example, the second configuration may indicate an RV sequence to be applied to the number of PDSCH repetitions. In this way, the first device 201 may receive the PDSCH repetition based on the first configuration and the second configuration.

[0058] In some embodiments, under different circumstances (e.g., different K values, different total number of repetitions and / or different RV idvalue), the RV sequence to be applied to the PDSCH repetition may be different. In some embodiments, a configuration table for indicating the RV sequence to be applied to the PDSCH repetition may be configured at the first device 201 and the second device 202. In this way, when the first device 201 receives control information from the second device 202 and determines the RV sequence according to the control information id When the value of RV id The value of and / or other information (e.g., the total number of repetitions, the value of K, etc.) is used to determine the sequence of RV to be applied to PDSCH repetition.

[0059] In some embodiments, a second configuration indicating the RV sequence to be applied to the PDSCH repetition may be determined so that for adjacent PDSCH repetitions, the RV can form a complete set {0, 2, 3, 1} as much as possible. In the following, if RV is 0, RV is also represented as "RV-0"; if RV is 2, RV is also represented as "RV-2"; if RV is 3, RV is also represented as "RV-3"; if RV is 1, RV is also represented as "RV-1". Since RV-0 and RV-3 generally have better self-decoding performance, in some embodiments, a second configuration indicating the RV sequence to be applied to the PDSCH repetition may be determined so that the RV sequence applied to the PDSCH repetition can achieve good self-decoding performance.

[0060] Assume that the control information sent from the second device 202 to the first device 201 indicates a TCI code point, the TCI code point is configured with 2 TCI states, and the total number of PDSCH repetitions is 2. In some embodiments, in this case, if the RV indicated in the control information for scheduling the PDSCH id If the value of is 0, RV-0 can be used for the first PDSCH repetition and RV-3 can be used for the second PDSCH repetition. In some embodiments, if the RV id If the value of is 2, RV-2 can be used for the first PDSCH repetition and RV-1 can be used for the second PDSCH repetition. In some embodiments, if the RV id If the value of is 3, RV-3 can be used for the first PDSCH repetition and RV-0 can be used for the second PDSCH repetition. In some embodiments, if the RV id If the value of is 1, RV-1 can be used for the first PDSCH repetition and RV-2 can be used for the second PDSCH repetition. In some embodiments, the control information is used to indicate RV id The size of the RV field can be only 1, and the RV idThe value of can be 0 or 1. In some embodiments, the control information for indicating RV id The RV field is used, and RV-0 can be used for the first PDSCH repetition and RV-3 can be used for the second PDSCH repetition.

[0061] FIG. 5A to FIG. 5G An example diagram showing different RV sequences applied to PDSCH repetition in different situations.

[0062] Figure 5A An example for the TDM case is shown. Figure 5A In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 2. For example, Figure 5A As shown, two PDSCH transmission opportunities 510 and 520 are configured to be scheduled by a single DCI. Figure 5A As shown, if the RV indicated in the control information of the scheduling PDSCH id If the value of is 0, RV-0 may be used for PDSCH repetition 510 and RV-3 may be used for PDSCH repetition 520. Figure 5B Another example in the case of FDM is shown. Figure 5B In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 2. For example, Figure 5B As shown, two PDSCH transmission opportunities 510 and 520 are configured to be scheduled by a single DCI. Figure 5B As shown, if the RV indicated in the control information of the scheduling PDSCH id If the value of is 0, RV-0 may be used for PDSCH repetition 510 and RV-3 may be used for PDSCH repetition 520.

[0063] In some embodiments, Figure 5A and / or Figure 5B If the RV indicated in the control information of the scheduling PDSCH id If the value of is 2, RV-2 may be used for PDSCH repetition 510, and RV-1 may be used for PDSCH repetition 520. id is 3, RV-3 may be used for PDSCH repetition 510, and RV-0 may be used for PDSCH repetition 520. Alternatively, if the RV id If the value of is 1, RV-1 may be used for PDSCH repetition 510, and RV-2 may be used for PDSCH repetition 520. For example, Table 1 shows an example configuration table indicating RV sequences to be applied to PDSCH repetition as follows.

[0064] Table 1: Configuration table for indicating RV sequence

[0065]

[0066] Figure 5C Another example of such an embodiment is shown. Figure 5C In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 4. For example, Figure 5C As shown, four PDSCH transmission opportunities 510, 520, 530 and 540 are configured to be scheduled by a single DCI. Figure 5C In the example, it is also assumed that K=2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In some embodiments, Figure 5C As shown, the first two PDSCH repetitions 510 and 520 may be transmitted / received based on TCI A, while the remaining two PDSCH repetitions 530 and 540 may be transmitted / received based on TCI B.

[0067] In some embodiments, if the RV indicated in the control information of the scheduling PDSCH id The value of is 0, such as Figure 5C As shown, RV-0 may be used for PDSCH repetition 510, RV-2 may be used for PDSCH repetition 520, RV-3 may be used for PDSCH repetition 530, and RV-1 may be used for PDSCH repetition 540. In some embodiments, if the RV indicated in the control information for scheduling the PDSCH id If the value of is 2, RV-2 may be used for PDSCH repetition 510, RV-3 may be used for PDSCH repetition 520, RV-1 may be used for PDSCH repetition 530, and RV-0 may be used for PDSCH repetition 540. In some embodiments, if the RV id is 3, RV-3 may be used for PDSCH repetition 510, RV-1 may be used for PDSCH repetition 520, RV-0 may be used for PDSCH repetition 530, and RV-2 may be used for PDSCH repetition 540. Alternatively, in some embodiments, if the RV indicated in the control information for scheduling the PDSCH id is 1, RV-1 may be used for PDSCH repetition 510, RV-0 may be used for PDSCH repetition 520, RV-2 may be used for PDSCH repetition 530, and RV-3 may be used for PDSCH repetition 540. For example, Table 2 shows an example configuration table indicating RV sequences to be applied to PDSCH repetition as follows.

[0068] Table 2: Configuration table for indicating RV sequence

[0069]

[0070] Figure 5D Another example of such an embodiment is shown. Figure 5D In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 4. For example, Figure 5D As shown, four PDSCH transmission opportunities 510, 520, 530 and 540 are configured to be scheduled by a single DCI. Figure 5D In the example, it is also assumed that K=2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In some embodiments, Figure 5D As shown, PDSCH repetitions 510 and 530 may be transmitted / received based on TCI A, while the remaining PDSCH repetitions 520 and 540 may be transmitted / received based on TCI B.

[0071] In some embodiments, if the RV indicated in the control information of the scheduling PDSCH id The value of is 0, such as Figure 5D As shown, RV-0 may be used for PDSCH repetition 510, RV-3 may be used for PDSCH repetition 520, RV-2 may be used for PDSCH repetition 530, and RV-1 may be used for PDSCH repetition 540. In some embodiments, if the RV indicated in the control information for scheduling the PDSCH id If the value of is 2, RV-2 may be used for PDSCH repetition 510, RV-1 may be used for PDSCH repetition 520, RV-0 may be used for PDSCH repetition 530, and RV-3 may be used for PDSCH repetition 540. In some embodiments, if the RV id is 3, RV-3 may be used for PDSCH repetition 510, RV-0 may be used for PDSCH repetition 520, RV-1 may be used for PDSCH repetition 530, and RV-2 may be used for PDSCH repetition 540. Alternatively, in some embodiments, if the RV indicated in the control information for scheduling the PDSCH id is 1, RV-1 may be used for PDSCH repetition 510, RV-2 may be used for PDSCH repetition 520, RV-0 may be used for PDSCH repetition 530, and RV-3 may be used for PDSCH repetition 540. For example, Table 3 shows an example configuration table indicating RV sequences to be applied to PDSCH repetition as follows.

[0072] Table 3: Configuration table for indicating RV sequence

[0073]

[0074] Figure 5E Another example of such an embodiment is shown. Figure 5E In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 8. For example, Figure 5E As shown, eight PDSCH transmission opportunities 510, 520, 530, 540, 550, 560, 570, and 580 are configured to be scheduled by a single DCI. Figure 5E In the example, it is also assumed that K=2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In some embodiments, Figure 5E As shown, the first four PDSCH repetitions 510 to 540 may be transmitted / received based on TCI A, while the remaining four PDSCH repetitions 550 to 580 may be transmitted / received based on TCI B.

[0075] In some embodiments, if the RV indicated in the control information of the scheduling PDSCH id The value of is 0, such as Figure 5E As shown, RV-0 may be used for PDSCH repetition 510, RV-2 may be used for PDSCH repetition 520, RV-3 may be used for PDSCH repetition 530, RV-1 may be used for PDSCH repetition 540, RV-0 may be used for PDSCH repetition 550, RV-2 may be used for PDSCH repetition 560, RV-3 may be used for PDSCH repetition 570, and RV-1 may be used for PDSCH repetition 580. In some embodiments, if the RV indicated in the control information for scheduling the PDSCH id If the value of is 2, 3 or 1, the sequence of the RV to be applied to 8 PDSCH repetitions can be similarly determined. For example, Table 4 shows the following example configuration table for indicating the RV sequence to be applied to PDSCH repetitions.

[0076] Table 4: Configuration table for indicating RV sequence

[0077]

[0078] Fig. 5F Another example of such an embodiment is shown. Fig. 5F In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 8. For example, Fig. 5F As shown, eight PDSCH transmission opportunities 510, 520, 530, 540, 550, 560, 570, and 580 are configured to be scheduled by a single DCI. Fig. 5F In the example, it is also assumed that K=2. For example, TCI A and TCI B are used for PDSCH transmission / reception. In some embodiments, Fig. 5FAs shown, PDSCH repetitions 510, 530, 550 and 570, while the remaining PDSCH repetitions 520, 540, 560 and 580 can be transmitted / received based on TCI B.

[0079] In some embodiments, if the RV indicated in the control information of the scheduling PDSCH id The value of is 0, such as Fig. 5F As shown, RV-0 may be used for PDSCH repetition 510, RV-3 may be used for PDSCH repetition 520, RV-2 may be used for PDSCH repetition 530, RV-1 may be used for PDSCH repetition 540, RV-3 may be used for PDSCH repetition 550, RV-0 may be used for PDSCH repetition 560, RV-1 may be used for PDSCH repetition 570, and RV-2 may be used for PDSCH repetition 580. In some embodiments, if the RV indicated in the control information for scheduling the PDSCH id If the value of is 2, 3 or 1, the sequence of the RV to be applied to 8 PDSCH repetitions can be similarly determined. For example, Table 5 shows the following example configuration table for indicating the RV sequence to be applied to PDSCH repetition.

[0080] Table 5: Configuration table for indicating RV sequence

[0081]

[0082] Figure 5G An example is shown in which FDM is combined with TDM. Figure 5G In , it is assumed that the total number of PDSCH repetitions scheduled by a single DCI is 8. For example, Figure 5G As shown, eight PDSCH transmission opportunities 510, 520, 530, 540, 550, 560, 570, and 580 are configured to be scheduled by a single DCI. In some embodiments, if the RV id The value of is 0, such as Figure 5G As shown, RV-0 may be used for PDSCH repetition 510, RV-3 may be used for PDSCH repetition 520, RV-2 may be used for PDSCH repetition 530, RV-1 may be used for PDSCH repetition 540, RV-3 may be used for PDSCH repetition 550, RV-0 may be used for PDSCH repetition 560, RV-1 may be used for PDSCH repetition 570, and RV-2 may be used for PDSCH repetition 580. In some embodiments, if the RV indicated in the control information for scheduling the PDSCH idIf the value of is 2, 3 or 1, the sequence of the RV to be applied to 8 PDSCH repetitions can be similarly determined. For example, Table 6 shows the following example configuration table for indicating the RV sequence to be applied to PDSCH repetition.

[0083] Table 6: Configuration table for indicating RV sequence

[0084]

[0085] In some embodiments, if at least a first TCI state and a second TCI state (eg, TCI A and TCI B) are to be used for PDSCH transmission / reception, the RV indicated in the control information for scheduling the PDSCH is id It may be applied only to the first TCI state (e.g., TCI A). In some embodiments, the RV sequence for the second TCI state (e.g., TCI B) may be predefined or fixed. For example, the predefined RV sequence or fixed RV sequence for the second TCI state (e.g., TCI B) may be {0, 2, 3, 1}. For example, Table 7 shows an example configuration table for indicating the RV sequence to be applied to PDSCH repetition as follows.

[0086] Table 7: Configuration table for indicating RV sequence

[0087]

[0088]

[0089] In some embodiments, if the total number of PDSCH repetitions exceeds the threshold X, then it may not be necessary to indicate the RV in the control information. id . For example, if the total number of PDSCH repetitions is 4 or 8, the RV sequence to be applied to the PDSCH repetition can be determined based on the complete set {0, 2, 3, 1}, and thus the RV field in the control information can be omitted. In some embodiments, in this case, the RV field in the control information can be used for other purposes, such as indicating the number of TCI states or the order for assigning TCI states to different PDSCH repetitions.

[0090] In some embodiments, if the total number of PDSCH repetitions is 4 or 8, the control information for indicating RV id The RV field may use only 1 bit. For example, Table 8 shows an example configuration table for indicating the RV sequence to be applied to PDSCH repetition, where the total number of PDSCH repetitions is 8. Table 9 shows another example configuration table for indicating the RV sequence to be applied to PDSCH repetition, where the total number of PDSCH repetitions is 4.

[0091] Table 8: Configuration table for indicating RV sequence

[0092]

[0093] Table 9: Configuration table for indicating RV sequence

[0094]

[0095]

[0096] In some embodiments, the RV field in combination with other information (e.g., DMRS indication table and / or TCI status) may be used to jointly indicate at least one of the following: TCI status, an order for assigning TCI status to different PDSCH repetitions, RV sequence, or an indication of DMRS. id The size of the RV field may depend on the number of TCI states and / or the total number of PDSCH repetitions. For example, if there is only 1 TCI state, the RV field may use 2 bits. For another example, if there are two or more TCI states, the RV field may use only 1 bit. For another example, if there are three or four TCI states, the TCI state and RV field may be jointly indicated. id In some embodiments, for the RV configuration table, the RV to be applied to the nth transmission opportunity of the second TCI state is id It may be determined based on the following formula: (n mod M+L) mod M, where, for example, L=3 and M represents the total number of PDSCH repetitions.

[0097] In some embodiments, if the control information sent from the second device 202 to the first device 201 indicates a TCI code point, and the TCI code point is configured with 2 TCI states, the first device 201 may determine a first TCI state (hereinafter referred to as "TCI A") and a second TCI state (hereinafter referred to as "TCI B") for PDSCH reception. In some embodiments, if the total number of PDSCH repetitions is N (where N is an integer and N ≥ 2), the RV sequence of the PDSCH repetition associated with TCI A may be different from the RV sequence of the PDSCH repetition associated with TCI B. In some embodiments, if the RV sequence of the PDSCH repetition associated with TCI A is {a, b, c, d}, the RV sequence of the PDSCH repetition associated with TCI B is {((a+3) mod 4), ((b+3) mod 4), ((c+3) mod 4), ((d+3) mod 4)}, where a, b, c and d can each be selected from the set {0, 2, 3, 1}, and the values ​​of a, b, c and d are different from each other. For example, if the RV sequence of the PDSCH repetition associated with TCI A is {0, 2, 3, 1} or {0, 2}, the RV sequence of the PDSCH repetition associated with TCI B is {3, 1, 0, 2} or {3, 1}.

[0098] It should be understood that the above reference FIG. 3A to FIG. 3C , FIG. 4A to FIG. 4B and FIG. 5A to FIG. 5G The described embodiments of the present disclosure are also applicable to PUSCH. It can be seen that the embodiments of the present disclosure can allocate TCI states and / or RVs to multiple PDSCH or PUSCH repetitions to achieve better decoding performance of PDSCH or PUSCH.

[0099] Figure 6 An example method 600 according to some embodiments of the present disclosure is shown. For example, in some embodiments, the method 600 may be performed as follows: Figure 2 The method 600 is executed at the first device 201. It should be understood that the method 600 may include additional blocks not shown and / or may omit some of the blocks shown, and the scope of the present disclosure is not limited thereto.

[0100] In block 610 , the first device 201 receives control information from the second device 202 .

[0101] At block 620, the first device 201 determines a transmission control indication (TCI) code point according to the control information. The TCI code point indicates at least a first TCI state and a second TCI state for communicating data with the second device on a physical shared channel.

[0102] In box 630, in response to the number of repetitions of the data configured to be scheduled by the control information, the first device 201 determines a first configuration for communicating the repetition of the data with the second device, and the first configuration assigns the first TCI state and the second TCI state to the repetition of the data.

[0103] At block 640 , the first device 201 communicates a repetition of the data with the second device 202 on the physical shared channel based at least on the first configuration.

[0104] In some embodiments, the first device 201 determines an indication of a redundancy version of the repetition of the data according to the control information. Then, the first device 201 determines a second configuration based at least on the indication for communicating the repetition of the data with the second device 202. The second configuration indicates a redundancy version to be used by one of the repetitions of the data.

[0105] In some embodiments, the first device 201 communicates the repetition of the data with the second device on the physical shared channel based on the first configuration and the second configuration.

[0106] In some embodiments, the physical shared channel is a physical uplink shared channel (PUSCH), and the first device 201 communicates the repetition of the data with the second device 202 by transmitting the repetition of the data to the second device 202 on the PUSCH based on at least the first configuration.

[0107] In some embodiments, the physical shared channel is a physical downlink shared channel (PDSCH), and the first device 201 communicates the repetition of the data with the second device 202 by receiving the repetition of the data from the second device on the PDSCH based on at least the first configuration.

[0108] In some embodiments, the number of repetitions is one of: 1, 2, 4, or 8.

[0109] In some embodiments, the redundancy version to be used by one of the repetitions of the data is one of: 0, 2, 3, or 1.

[0110] In some embodiments, the first device 201 is a terminal device (eg, Figure 1 ), and the second device 202 is a network device serving the terminal device (for example, Figure 1 10) or a TRP coupled to the network device (e.g., Figure 1 Network TRP 120 in.

[0111] Figure 7An example method 700 according to some embodiments of the present disclosure is shown. For example, in some embodiments, the method 700 may be performed as follows: Figure 2 The method 700 is executed at the second device 202. It should be understood that the method 700 may include additional blocks not shown and / or may omit some of the blocks shown, and the scope of the present disclosure is not limited in this regard.

[0112] At block 710, the second device 202 sends control information to the first device 201. The control information includes a transmission control indication (TCI) code point, and the TCI code point indicates at least a first TCI state and a second TCI state for communicating data with the first device on a physical shared channel.

[0113] At block 720, in response to the number of repetitions of the data configured to be scheduled by the control information, the second device 202 determines a first configuration for communicating the repetitions of the data with the first device 201. The first configuration assigns the first TCI state and the second TCI state to the repetitions of the data.

[0114] At block 730 , the second device 202 communicates a repetition of the data with the first device 201 on the physical shared channel based at least on the first configuration.

[0115] In some embodiments, the control information further comprises an indication of a redundancy version of the repetition of the data. In some embodiments, the second device 202 determines a second configuration for communicating the repetition of the data with the first device 201 based at least on the indication. The second configuration indicates a redundancy version to be used by one of the repetitions of the data.

[0116] In some embodiments, the second device 202 communicates repetition of data with the first device 201 on the physical shared channel based on the first configuration and the second configuration.

[0117] In some embodiments, the physical shared channel is a physical uplink shared channel (PUSCH), and the second device 202 communicates the repetition of the data with the first device 201 by receiving the repetition of the data from the first device 201 on the PUSCH based on at least the first configuration.

[0118] In some embodiments, the physical shared channel is a physical downlink shared channel (PDSCH), and the second device 202 communicates the repetition of the data with the first device 201 by sending the data repetition to the first device on the PDSCH based on at least the first configuration.

[0119] In some embodiments, the number of repetitions is one of: 1, 2, 4, or 8.

[0120] In some embodiments, the redundancy version to be used by one of the repetitions of the data is one of: 0, 2, 3, or 1.

[0121] In some embodiments, the first device 201 is a terminal device (eg, Figure 1 ), and the second device 202 is a network device serving the terminal device (for example, Figure 1 10) or a TRP coupled to the network device (e.g., Figure 1 Network TRP 120 in.

[0122] Figure 8 800 is a simplified block diagram of a device 800 suitable for implementing an embodiment of the present disclosure. The device 800 can be considered as Figure 1 The illustrated embodiment is a further example implementation of the network device 110, TRP 120, or terminal device 130. Thus, the device 800 may be implemented at the network device 110, TRP 120, or terminal device 130, or implemented as at least a part of the network device 110, TRP 120, or terminal device 130.

[0123] As shown, the device 800 includes a processor 810, a memory 820 coupled to the processor 810, a suitable transmitter (TX) and receiver (RX) 840 coupled to the processor 810, and a communication interface coupled to the TX / RX840. The memory 810 stores at least a portion of the program 830. The TX / RX840 is used for bidirectional communication. The TX / RX840 has at least one antenna to facilitate communication, although in fact the access node (Access Node) mentioned in this application may have several antennas. The communication interface may represent any interface required for communication with other network elements, such as: an X2 interface for bidirectional communication between eNBs; an S1 interface for communication between a mobility management entity (MME) / serving gateway (S-GW) and an eNB; a Un interface for communication between an eNB and a relay node (RN); or a Uu interface for communication between an eNB and a terminal device.

[0124] Assume that the program 830 includes program instructions that, when executed by the associated processor 810, enable the device 800 to operate according to the Figures 1 to 7The embodiments of the present disclosure discussed herein can be operated. The embodiments herein can be implemented by computer software executable by a processor 810 of the device 800, or can also be implemented by hardware, or can also be implemented by a combination of software and hardware. The processor 810 can be configured to implement various embodiments of the present invention. In addition, the combination of the processor 810 and the memory 820 can form a processing component 850 suitable for implementing various embodiments of the present disclosure.

[0125] The memory 820 may be of any type suitable for the local technology network and may be implemented using any suitable data storage technology (such as, as non-limiting examples, non-transitory computer-readable storage media, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory). Although only one memory 820 is shown in the device 800, there may be several physically distinct memory modules in the device 800. As non-limiting examples, the processor 810 may be of any type suitable for the local technology network and may include one or more of a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. The device 800 may have multiple processors, such as application-specific integrated circuit chips that are time-slaved to a clock that synchronizes a main processor.

[0126] In general, various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are shown and described as block diagrams, flow charts, or using some other graphical representations, it will be understood that the boxes, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general hardware or controllers or other computing devices, or some combination thereof, as non-limiting examples.

[0127] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium. The computer program product includes computer executable instructions such as those included in a program module that are executed in a device on a target real processor or a target virtual processor to perform the above-referenced Figure 6 to Figure 7The process or method described. In general, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The functions of program modules can be combined or divided between program modules as needed in various embodiments. The machine executable instructions of program modules can be executed in a local device or in a distributed device. In a distributed device, program modules can be located in both local storage media and remote storage media.

[0128] The program code for executing the disclosed method can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device so that the program code can be implemented in the flow chart and / or the function / operation specified in the block diagram when the processor or controller executes it. The program code can be executed completely on the machine, can be executed partially on the machine, can be executed as an independent software package, can be executed partially on the machine and partially on a remote machine, or can be executed completely on a remote machine or server.

[0129] The above program code can be implemented on a machine-readable medium, which can be any tangible medium containing or storing a program used by or in conjunction with an instruction execution system, device or equipment. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of machine-readable storage media will include an electrical connection with one or more wires, a portable computer floppy disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0130] In addition, although operations are described in a particular order, this should not be understood as requiring the specific order shown or to perform these operations in sequence, or to perform all the operations shown, to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these details should not be interpreted as limitations on the scope of the present disclosure, but should be interpreted as descriptions of features peculiar to a particular embodiment. Certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0131] Although the present disclosure has been described in language specific to structural features and / or methodological acts, it should be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Instead, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A method, performed by a terminal device, comprising: receiving control information, the control information comprising a redundancy version RV indication field associated with a plurality of physical downlink shared channel PDSCH transmission opportunities for repetition, the plurality of PDSCH transmission opportunities comprising a PDSCH transmission opportunity associated with a first transmission control indication TCI state and a PDSCH transmission opportunity associated with a second TCI state, the RV indication field corresponding to a first RV sequence and a second RV sequence, and the first RV sequence is applied to the PDSCH transmission opportunity associated with the first TCI state, and the second RV sequence is applied to the PDSCH transmission opportunity associated with the second TCI state; and Based on the control information, receiving a PDSCH associated with the plurality of PDSCH transmission opportunities; Wherein, when the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 0, the first RV sequence is {0}, the second RV sequence is {3}, When the value of the RV indication field is 2, the first RV sequence is {2} and the second RV sequence is {1}; In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 0, the first RV sequence is {0, 2}, and the second RV sequence is {3, 1}; When the number of the plurality of PDSCH transmission opportunities is 8, The first RV sequence is {a, b, c, d}, and the second RV sequence is {((a+3) mod 4), ((b+3) mod 4), ((c+3) mod 4), ((d+3) mod 4)}, where a, b, c and d are all from the set {0, 2, 3, 1}, and the values ​​of a, b, c and d are different from each other.

2. The method according to claim 1, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity among the multiple PDSCH opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a second PDSCH transmission opportunity among the multiple PDSCH opportunities; In the case where the number of the plurality of PDSCH transmission opportunities is 4, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity and a second PDSCH transmission opportunity among the multiple PDSCH transmission opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a third PDSCH transmission opportunity and a fourth PDSCH transmission opportunity among the multiple PDSCH transmission opportunities; or The PDSCH transmission timing associated with the first TCI state includes the first PDSCH transmission timing and the third PDSCH transmission timing among the multiple PDSCH transmission timings, and the PDSCH transmission timing associated with the second TCI state includes the second PDSCH transmission timing and the fourth PDSCH transmission timing among the multiple PDSCH transmission timings.

3. The method according to claim 1, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 3, the first RV sequence is {3}, and the second RV sequence is {0}; and When the value of the RV indication field is 1, the first RV sequence is {1}, the second RV sequence is {2}, In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 3, the first RV sequence is {3, 1} and the second RV sequence is {0, 2}.

4. A method, performed by a network device, comprising: Sending control information, the control information comprising a redundancy version RV indication field associated with a plurality of physical downlink shared channel PDSCH transmission opportunities for repetition, the plurality of PDSCH transmission opportunities comprising a PDSCH transmission opportunity associated with a first transmission control indication TCI state and a PDSCH transmission opportunity associated with a second TCI state, the RV indication field corresponding to a first RV sequence and a second RV sequence, and the first RV sequence is applied to the PDSCH transmission opportunity associated with the first TCI state, and the second RV sequence is applied to the PDSCH transmission opportunity associated with the second TCI state; and Based on the control information, sending a PDSCH associated with the plurality of PDSCH transmission opportunities; Wherein, when the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 0, the first RV sequence is {0}, the second RV sequence is {3}, When the value of the RV indication field is 2, the first RV sequence is {2} and the second RV sequence is {1}; In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 0, the first RV sequence is {0, 2}, and the second RV sequence is {3, 1}; When the number of the plurality of PDSCH transmission opportunities is 8, The first RV sequence is {a, b, c, d}, and the second RV sequence is {((a+3) mod 4), ((b+3) mod 4), ((c+3) mod 4), ((d+3) mod 4)}, where a, b, c and d are all from the set {0, 2, 3, 1}, and the values ​​of a, b, c and d are different from each other.

5. The method according to claim 4, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity among the multiple PDSCH opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a second PDSCH transmission opportunity among the multiple PDSCH opportunities; In the case where the number of the plurality of PDSCH transmission opportunities is 4, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity and a second PDSCH transmission opportunity among the multiple PDSCH transmission opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a third PDSCH transmission opportunity and a fourth PDSCH transmission opportunity among the multiple PDSCH transmission opportunities; or The PDSCH transmission timing associated with the first TCI state includes the first PDSCH transmission timing and the third PDSCH transmission timing among the multiple PDSCH transmission timings, and the PDSCH transmission timing associated with the second TCI state includes the second PDSCH transmission timing and the fourth PDSCH transmission timing among the multiple PDSCH transmission timings.

6. The method according to claim 4, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 3, the first RV sequence is {3}, and the second RV sequence is {0}; and When the value of the RV indication field is 1, the first RV sequence is {1}, the second RV sequence is {2}, In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 3, the first RV sequence is {3, 1} and the second RV sequence is {0, 2}.

7. A terminal device, comprising a processor, wherein the processor is configured to: receiving control information, the control information comprising a redundancy version RV indication field associated with a plurality of physical downlink shared channel PDSCH transmission opportunities for repetition, the plurality of PDSCH transmission opportunities comprising a PDSCH transmission opportunity associated with a first transmission control indication TCI state and a PDSCH transmission opportunity associated with a second TCI state, the RV indication field corresponding to a first RV sequence and a second RV sequence, and the first RV sequence is applied to the PDSCH transmission opportunity associated with the first TCI state, and the second RV sequence is applied to the PDSCH transmission opportunity associated with the second TCI state; and Based on the control information, receiving a PDSCH associated with the plurality of PDSCH transmission opportunities; in, In the case where the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 0, the first RV sequence is {0}, the second RV sequence is {3}, When the value of the RV indication field is 2, the first RV sequence is {2} and the second RV sequence is {1}; In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 0, the first RV sequence is {0, 2}, and the second RV sequence is {3, 1}; When the number of the plurality of PDSCH transmission opportunities is 8, The first RV sequence is {a, b, c, d}, and the second RV sequence is {((a+3) mod 4), ((b+3) mod 4), ((c+3) mod 4), ((d+3) mod 4)}, where a, b, c and d are all from the set {0, 2, 3, 1}, and the values ​​of a, b, c and d are different from each other.

8. The terminal device according to claim 7, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity among the multiple PDSCH opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a second PDSCH transmission opportunity among the multiple PDSCH opportunities; In the case where the number of the plurality of PDSCH transmission opportunities is 4, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity and a second PDSCH transmission opportunity among the multiple PDSCH transmission opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a third PDSCH transmission opportunity and a fourth PDSCH transmission opportunity among the multiple PDSCH transmission opportunities; or The PDSCH transmission timing associated with the first TCI state includes the first PDSCH transmission timing and the third PDSCH transmission timing among the multiple PDSCH transmission timings, and the PDSCH transmission timing associated with the second TCI state includes the second PDSCH transmission timing and the fourth PDSCH transmission timing among the multiple PDSCH transmission timings.

9. The terminal device according to claim 7, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 3, the first RV sequence is {3}, and the second RV sequence is {0}; and When the value of the RV indication field is 1, the first RV sequence is {1}, the second RV sequence is {2}, In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 3, the first RV sequence is {3, 1} and the second RV sequence is {0, 2}.

10. A network device, comprising a processor, wherein the processor is configured to: Sending control information, the control information comprising a redundancy version RV indication field associated with a plurality of physical downlink shared channel PDSCH transmission opportunities for repetition, the plurality of PDSCH transmission opportunities comprising a PDSCH transmission opportunity associated with a first transmission control indication TCI state and a PDSCH transmission opportunity associated with a second TCI state, the RV indication field corresponding to a first RV sequence and a second RV sequence, and the first RV sequence is applied to the PDSCH transmission opportunity associated with the first TCI state, and the second RV sequence is applied to the PDSCH transmission opportunity associated with the second TCI state; and Based on the control information, sending a PDSCH associated with the plurality of PDSCH transmission opportunities; in, In the case where the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 0, the first RV sequence is {0}, the second RV sequence is {3}, When the value of the RV indication field is 2, the first RV sequence is {2}, and the second RV sequence is {1}; In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 0, the first RV sequence is {0, 2}, and the second RV sequence is {3, 1}; When the number of the plurality of PDSCH transmission opportunities is 8, The first RV sequence is {a, b, c, d}, and the second RV sequence is {((a+3) mod 4), ((b+3) mod 4), ((c+3) mod 4), ((d+3) mod 4)}, where a, b, c and d are all from the set {0, 2, 3, 1}, and the values ​​of a, b, c and d are different from each other.

11. The network device according to claim 10, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity among the multiple PDSCH opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a second PDSCH transmission opportunity among the multiple PDSCH opportunities; In the case where the number of the plurality of PDSCH transmission opportunities is 4, The PDSCH transmission opportunity associated with the first TCI state includes a first PDSCH transmission opportunity and a second PDSCH transmission opportunity among the multiple PDSCH transmission opportunities, and the PDSCH transmission opportunity associated with the second TCI state includes a third PDSCH transmission opportunity and a fourth PDSCH transmission opportunity among the multiple PDSCH transmission opportunities; or The PDSCH transmission timing associated with the first TCI state includes the first PDSCH transmission timing and the third PDSCH transmission timing among the multiple PDSCH transmission timings, and the PDSCH transmission timing associated with the second TCI state includes the second PDSCH transmission timing and the fourth PDSCH transmission timing among the multiple PDSCH transmission timings.

12. The network device according to claim 10, wherein In the case where the number of the plurality of PDSCH transmission opportunities is 2, When the value of the RV indication field is 3, the first RV sequence is {3}, and the second RV sequence is {0}; and When the value of the RV indication field is 1, the first RV sequence is {1}, the second RV sequence is {2}, In the case where the number of the plurality of PDSCH transmission opportunities is 4, When the value of the RV indication field is 3, the first RV sequence is {3, 1} and the second RV sequence is {0, 2}.

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