Method, device and system for sending uplink control information

Abstract

The embodiment of the present application provides a kind of sending method, device and communication system of uplink control information, the method comprises: terminal equipment sends uplink control information, and the uplink control information is related to at least two TRPs.According to the embodiment of the present application, uplink control information is sent in the way of space diversity.That is to say, at the terminal side, same data can be via different space paths or via different TRP (transmission and reception point, reception point) to reach network side.In this way, in the case where one path is blocked, other paths can still continue to work, so as to ensure the high reliability of uplink control information.In addition, since the mode can utilize space diversity gain, the number of retransmission of uplink control information can be avoided or reduced, so as to reduce the transmission delay of uplink data.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication. BACKGROUND

[0002] In order to meet the requirements of reliability and coverage, NR (New Radio) introduces multiple uplink control channel formats (PUCCH format) to cope with different scenarios. And, NR introduces a flexible uplink information transmission mechanism to improve system performance.

[0003] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical scheme of the present application and facilitating the understanding of those skilled in the art. The above technical scheme cannot be considered as known to those skilled in the art merely because it is described in the background section of the present application. SUMMARY

[0004] The inventors found that, since NR supports a carrier frequency as high as 52.6GHz, when the carrier frequency is high, the high-frequency signal is easily blocked by obstacles due to the poor diffraction ability of high-frequency signals. When the transmission signal is blocked, the transmission channel quality will be severely degraded, resulting in a decrease in transmission signal reliability and / or an increase in transmission delay. This is very unfavorable for URLLC (Ultra Reliable Low Latency Communications) services. This is because the communication delay requirement of URLLC is generally less than 3 milliseconds, and if the transmission channel of the uplink control information is blocked by an obstacle, according to the existing mechanism, its delay may not meet the requirements of URLLC services.

[0005] In order to reduce the impact of the above-mentioned instability of high-frequency transmission channels on the transmission of uplink control information, the embodiments of the present application provide a method, device and system for transmitting uplink control information, so that the uplink control information can be transmitted in a spatial diversity manner (i.e., transmitted to different TRPs), thereby enhancing the reliability of uplink control information transmission and effectively reducing the impact of channel instability on transmission delay.

[0006] According to an aspect of the embodiments of the present application, a method for transmitting uplink control information is provided, the method comprising:

[0007] The terminal device transmits uplink control information, and the uplink control information is related to at least two TRPs.

[0008] According to another aspect of the embodiments of the present application, a method for indicating the transmission of uplink control information is provided, the method comprising:

[0009] The network device sends indication information to the terminal device, the indication information indicating that the uplink control information is related to at least two TRPs.

[0010] According to still another aspect of the embodiments of the present application, an uplink control information sending device is provided, the device comprising:

[0011] The sending unit sends uplink control information, the uplink control information being related to at least two TRPs.

[0012] According to yet another aspect of the embodiments of the present application, an indication device for uplink control information sending is provided, the device comprising:

[0013] The sending unit sends indication information to the terminal device, the indication information indicating that the uplink control information is related to at least two TRPs.

[0014] One of the beneficial effects of the embodiments of the present application is that, according to the embodiments of the present application, the uplink control information is sent in a spatial diversity manner. That is, at the terminal side, the same data can reach the network side via different spatial paths or different TRPs (transmission and reception point). In this way, in the case that a part of the paths is blocked, the other paths can still continue to work, thereby ensuring the high reliability of the uplink control information. In addition, since this manner can utilize the spatial diversity gain, the number of retransmissions of the uplink control information can be avoided or reduced, thereby reducing the transmission delay of the uplink data.

[0015] Specific embodiments of the application are disclosed herein, and represented in the accompanying drawings, illustrating the principles of the application in a manner that is sufficiently detailed to enable those skilled in the art to apply the application in practice. It should be understood, however, that the embodiments of the application are not limited in scope to the exact details of construction, arrangement, and operation as described herein. Many changes can be made in the details of construction, arrangement, and operation of the embodiments of the application without departing from the spirit and scope of the application as described in the following claims and the legal equivalents thereto.

[0016] Features described and / or illustrated with respect to one implementation can be used in one or more other implementations in the same or similar manner, in combination with or in place of features in other implementations, or in some cases, in place of some features of the other implementations.

[0017] It should be emphasized that the term "comprises / comprising" when used in this text is taken to mean that the features, integers, steps or components referred to are present, but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0018] Elements and features depicted in one drawing or embodiment of the application can be combined with elements and features depicted in one or more other drawings or embodiments. Also, in the drawings, like reference numerals designate corresponding parts throughout the several views, and can be used to indicate corresponding parts in more than one embodiment.

[0019] The accompanying drawings are included to provide a further understanding of embodiments of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the principles of the application. It is to be understood that other embodiments can be taken without departing from the spirit of the application, and that the drawings are, therefore, to be regarded as illustrative rather than restrictive.

[0020] Figure 1 is a diagram of one example of PUCCH format 0;

[0021] Figure 2 is a diagram of another example of PUCCH format 0;

[0022] Figure 3 is a diagram of one example of PUCCH format 1;

[0023] Figure 4 is a diagram of another example of PUCCH format 1;

[0024] Figure 5 is a diagram of yet another example of PUCCH format 1;

[0025] Figure 6 is a diagram of yet another example of PUCCH format 1;

[0026] Figure 7 is a diagram of one example of PUCCH format 2;

[0027] Figure 8 is a diagram of another example of PUCCH format 2;

[0028] Figure 9 is a diagram of one example of PUCCH format 3;

[0029] Figure 10 is a diagram of another example of PUCCH format 3;

[0030] Figure 11 is a diagram of yet another example of PUCCH format 3;

[0031] Figure 12 This is another example of a PUCCH format 3 diagram;

[0032] Figure 13 This is a schematic diagram of an uplink control information transmission method according to an embodiment of this application;

[0033] Figure 14 This is a schematic diagram illustrating an example of the mapping relationship between PUCCH format 0 and each TRP;

[0034] Figure 15 This is a schematic diagram illustrating an example of the mapping relationship between PUCCH format 1 and each TRP;

[0035] Figure 16 This is another example of the mapping relationship between PUCCH format 1 and each TRP;

[0036] Figure 17 This is a schematic diagram illustrating an example of the mapping relationship between PUCCH format 2 and each TRP;

[0037] Figure 18 This is another example of the mapping relationship between PUCCH format 2 and each TRP;

[0038] Figure 19 This is another example of the mapping relationship between PUCCH format 2 and each TRP;

[0039] Figure 20 This is a schematic diagram illustrating an example of the mapping relationship between PUCCH format 3 and each TRP;

[0040] Figure 21 This is another example of the mapping relationship between PUCCH format 3 and each TRP;

[0041] Figure 22 Is with Figure 14 The diagram shows the frequency hopping mode within the time slot corresponding to the inter-symbol TRP mapping.

[0042] Figure 23 Is with Figure 15 The diagram shows the frequency hopping mode within the time slot corresponding to the Inter-block TRP mapping.

[0043] Figure 24 Is with Figure 15A diagram of a frequency hopping pattern corresponding to intra-slot TRP mapping shown in FIG. 2B;

[0044] Figure 25 is a diagram of a frequency hopping pattern corresponding to inter-2-slot TRP mapping shown in FIG. 2C; Figure 16 A diagram of a frequency hopping pattern corresponding to inter-slot TRP mapping shown in FIG. 2D;

[0045] Figure 26 is a diagram of a frequency hopping pattern corresponding to inter-2-slot TRP mapping shown in FIG. 2E; Figure 16 A diagram of a frequency hopping pattern corresponding to inter-slot TRP mapping shown in FIG. 2F;

[0046] Figure 27 is a diagram of a frequency hopping pattern corresponding to inter-symbol TRP mapping shown in FIG. 2G; Figure 17 A diagram of a frequency hopping pattern corresponding to inter-symbol TRP mapping shown in FIG. 2H;

[0047] Figure 28 is a diagram of a frequency hopping pattern corresponding to inter-symbol TRP mapping shown in FIG. 2I; Figure 19 A diagram of a frequency hopping pattern corresponding to inter-symbol TRP mapping shown in FIG. 2J;

[0048] Figure 29 is a diagram of an indication method of uplink control information transmission according to an embodiment of the present application;

[0049] Figure 30 is a diagram of a transmitting device of uplink control information according to an embodiment of the present application;

[0050] Figure 31 is a diagram of an indication device of uplink control information transmission according to an embodiment of the present application;

[0051] Figure 32 is a diagram of a communication system according to an embodiment of the present application;

[0052] Figure 33 is a diagram of a terminal device according to an embodiment of the present application;

[0053] Figure 34 is a diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0054] The foregoing and other features of the present application will become apparent to those skilled in the art upon consideration of the following description of specific embodiments of the present application, taken in conjunction with the accompanying drawings. In the description of embodiments of the application, specific terminology is employed for the sake of clarity. However, the application is not intended to be limited to the specific terminology so selected. A person skilled in the relevant art will recognize that the principles of the present application can be employed in any number of embodiments.

[0055] In the embodiments of the present application, the terms "first", "second" and the like are used to distinguish different elements from each other, but do not indicate spatial arrangement or time sequence of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of the associated listed terms. The terms "comprise", "include", "have" and the like mean the presence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

[0056] In the embodiments of the present application, the singular form "a", "an" and the like includes the plural form, should be broadly understood as "one" or "a kind of", and not limited to the meaning of "one"; in addition, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least partially according to", and the term "based on" should be understood as "at least partially based on", unless the context clearly indicates otherwise.

[0057] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network that conforms to any communication standard, such as Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), etc.

[0058] In addition, the communication between devices in the communication system can be carried out according to any stage communication protocol, which can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future 5G, New Radio (NR), etc., and / or other currently known or future to be developed communication protocols.

[0059] In the embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device to a communication network and provides services for the terminal device in a communication system. The network device can include, but is not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), and the like.

[0060] Wherein, the base station can include, but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and can also include remote radio head (RRH), remote radio unit (RRU), relay or low-power node (such as femto, pico, etc.). And the term "base station" can include some or all functions of them, and each base station can provide communication coverage for a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0061] In the embodiments of the present application, the term "user equipment" (UE) refers to, for example, a device that accesses a communication network through a network device and receives network services, which can also be referred to as "terminal equipment" (TE). The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a user, a subscriber station (SS), an access terminal (AT), a station, and the like.

[0062] Wherein, the terminal equipment can include, but is not limited to, the following devices: cellular phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, cordless phone, smart phone, smart watch, digital camera, and the like.

[0063] For another example, in scenarios such as Internet of Things (IoT), terminal devices can also be machines or apparatuses that perform monitoring or measurement, for example, can include but are not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device to device (D2D) terminal, machine to machine (M2M) terminal, and the like.

[0064] In order to make the embodiments of the present application clear and easy to understand, some concepts and definitions related to the embodiments of the present application are explained below.

[0065] In the embodiments of the present application, PUCCH format 0 is a short PUCCH (physical uplink control channel), and its length can be 1 or 2 time domain symbols. It occupies a frequency domain bandwidth of 1 PRB (physical resource block). For each symbol, PUCCH format 0 is composed of a low PAPR (low peak-to-average power ratio) sequence with a length of 12, carrying 1 or 2 UCI bits (uplink control information bits). Compared with 1-symbol PUCCH format 0, 2-symbol PUCCH format 0 includes two low PAPR sequences with a length of 12, each sequence corresponding to the same information bits. Therefore, compared with 1-symbol PUCCH format 0, 2-symbol PUCCH format 0 also carries 1 or 2 UCI bits, but because its time domain length is longer, it can accumulate higher energy on the receiving side, thereby enhancing coverage.

[0066] In addition, it should be noted that PUCCH format 0 supports intra-slot frequency hopping (also known as intra-slot frequency hopping), which enables PUCCH to utilize frequency domain diversity gain on a larger uplink bandwidth than its scheduling bandwidth, thereby improving reliability.

[0067] Figure 1 is a schematic diagram of an example of PUCCH format 0, as Figure 1 When a UE receives a UE-specific PDSCH (UE-specific physical downlink shared channel), it needs to feed back the corresponding HARQ-ACK (hybrid automatic repeat request acknowledgement). Therefore, in T proc,1Afterwards, the corresponding HARQ-ACK feedback is sent using PUCCH format 0. In this case, the time domain length L of PUCCH format 0 is 2 symbols. The above T proc,1 is the UE PDSCH processing procedure time.

[0068] Figure 2 is a schematic diagram of another example of PUCCH format 0, in which Figure 2 In the example of Figure 2 , intra-slot frequency hopping occurs. As shown in Figure 1 , similar to the example of Figure 2 , the difference is that in the example of , the first symbol and the second symbol of PUCCH format 0 occupy different frequency domain resources.

[0069] In an embodiment of the present application, PUCCH format 1 is a long PUCCH, whose length can be 4 to 14 time domain symbols. The frequency domain bandwidth it occupies is 1 PRB. PUCCH format 1 adopts a structure of DM-RS and UCI time division multiplexing in order to obtain higher reliability. The entire PUCCH format 1 carries 1 or 2 UCI bits, and by configuring the time domain length of PUCCH, the coverage requirements of different scenarios can be met.

[0070] In addition, it should be noted that PUCCH format 1 supports inter-UE resource multiplexing, that is, different UEs use different time domain orthogonal cover codes (TD-OCC) to multiplex the same time-frequency resources. PUCCH format 1 also supports time domain repetition, that is, time slot-based time domain repetition, which is beneficial to the receiving end to obtain additional signal energy and further enhance coverage. PUCCH format 1 also supports intra-slot frequency hopping, which enables PUCCH to utilize frequency domain diversity gain to improve reliability. PUCCH format 1 also supports inter-slot frequency hopping, which enables PUCCH to utilize frequency domain diversity gain to improve reliability.

[0071] Figure 3 is a schematic diagram of an example of PUCCH format 1, as Figure 3As shown, when a UE receives a UE-specific PDSCH, it needs to send back a corresponding HARQ-ACK. Therefore, in T... proc,1 Then, the corresponding HARQ-ACK feedback is sent using PUCCH format 1. The time-domain length L of PUCCH format 1 is 12 symbols. The orthogonal mask length corresponding to DM-RS is the same as the number of symbols occupied by DM-RS, i.e., DM-RS occupies 6 symbols, and its time-domain orthogonal mask length is also 6. Similarly, the orthogonal mask length corresponding to UCI is the same as the number of symbols occupied by UCI, i.e., UCI occupies 6 symbols, and its time-domain orthogonal mask length is also 6.

[0072] Figure 4 This is a schematic diagram of another example of PUCCH format 1. Figure 4 In the example, intra-slot frequency hopping occurred. For example... Figure 4 As shown, with Figure 3 The example is similar, except that in Figure 4 In the example, the first and second halves of PUCCHformat 1 occupy different frequency domain resources (each half corresponds to a separate hop). In the first hop, DM-RS occupies 3 symbols, and its time-domain orthogonal mask length is also 3; in the second hop, DM-RS occupies 3 symbols, and its time-domain orthogonal mask length is also 3. Similarly, the orthogonal mask length corresponding to UCI is the same as the number of symbols occupied by UCI in each hop, that is, in the first hop, UCI occupies 3 symbols, and its time-domain orthogonal mask length is also 3; in the second hop, UCI occupies 3 symbols, and its time-domain orthogonal mask length is also 3.

[0073] Figure 5 This is a schematic diagram of another example of PUCCH format 1, illustrating the case of PUCCH time-domain repetition. For example... Figure 5 As shown, when a UE receives a UE-specific PDSCH, it needs to send back a corresponding HARQ-ACK. Therefore, in T... proc,1 Then, the corresponding HARQ-ACK feedback is sent in slot n+k using PUCCH format 1. The time-domain length L of PUCCH format 1 is 12 symbols, and the repetition count is 4. PUCCH repetitions occur in four consecutive time slots starting from slot n+k; within each slot, the time-frequency resources occupied by the PUCCH repetition are the same.

[0074] Figure 6This is another example diagram of PUCCH format 1. Figure 6 In the example, inter-slot frequency hopping occurred. For example... Figure 6 As shown, with Figure 5 The example is similar, except that in Figure 6 In the example, PUCCH format 1's PUCCH repetition alternates to occupy different frequency domain resources in different slots.

[0075] It should also be noted that intra-slot frequency hopping can be performed on PUCCHs that experience temporal repetition. The frequency hopping method within each slot is described in [reference needed]. Figure 4 (Explanation omitted here.)

[0076] In this embodiment, PUCCH format 2 is a short PUCCH, with a length of 1 or 2 time-domain symbols. Its frequency-domain bandwidth can be 1 to 16 PRBs. PUCCH format 2 employs a DM-RS and UCI frequency division multiplexing structure to carry more UCI bits. The entire PUCCH format 2 carries more than 2 UCI bits, enabling the transmission of a large number of UCI bits in a short time to reduce UCI feedback delay.

[0077] It should also be noted that PUCCH format 2 supports intra-slot frequency hopping, which allows PUCCH to utilize frequency domain diversity gain and improve reliability.

[0078] Figure 7 This is a schematic diagram of an example of PUCCH format 2, as shown below. Figure 7 As shown, when a UE receives a UE-specific PDSCH, it needs to send back a corresponding HARQ-ACK. Therefore, in T... proc,1 Then, the corresponding HARQ-ACK feedback is sent using PUCCH format 2. The time-domain length L of PUCCH format 2 is 2 symbols.

[0079] Figure 8 This is a diagram illustrating another example of PUCCH format 2. Figure 8 In the example, intra-slot frequency hopping occurred. For example... Figure 8 As shown, with Figure 7 The example is similar, except that inFigure 8 In an example of the PUCCH format 2, the first symbol and the second symbol occupy different frequency domain resources.

[0080] In an embodiment of the present application, the PUCCH format 3 is a long PUCCH, whose length can be 4 to 14 time domain symbols. The PUCCH format 3 occupies a frequency domain bandwidth of 1 to 16 PRBs. The PUCCH format 3 adopts a structure of time division multiplexing of DM-RS and UCI. The PUCCH format 3 carries more than 2 UCI bits. Because of occupying longer time domain resources, the PUCCH format 3 can guarantee coverage while transmitting a large number of UCI bits.

[0081] In addition, it should be noted that the PUCCH format 3 supports time domain repetition, i.e. time domain repetition based on a slot. This repetition mode is beneficial to the receiving end to obtain additional signal energy, further enhancing coverage. The PUCCH format 3 also supports intra-slot frequency hopping, which enables the PUCCH to utilize frequency domain diversity gain to improve reliability. The PUCCH format 3 also supports inter-slot frequency hopping, which enables the PUCCH to utilize frequency domain diversity gain to improve reliability.

[0082] Figure 9 is a schematic diagram of an example of the PUCCH format 3, as Figure 9 indicated, after a UE receives a UE-specific PDSCH, it needs to feed back the corresponding HARQ-ACK. Therefore, after T proc,1 , the corresponding HARQ-ACK feedback (also including other UCI bits transmitted in the same slot) is transmitted using the PUCCH format 3. Among them, the time domain length L of the PUCCH format 3 is 12 symbols.

[0083] Figure 10 is a schematic diagram of another example of the PUCCH format 3, in Figure 10 an example, intra-slot frequency hopping occurs. As Figure 10 indicated, similar to the example of Figure 9 , the difference is that in the example of Figure 10 , the first half and the second half of the PUCCH format 3 occupy different frequency domain resources.

[0084] Figure 11is a schematic diagram of another example of PUCCH format 3, showing the case of PUCCH time-domain repetition. As shown in Figure 11 When a UE receives one UE specific PDSCH, it needs to feedback the corresponding HARQ-ACK. Therefore, after T proc,1 , the corresponding HARQ-ACK feedback is sent using PUCCH format 3 in slot n+k. Wherein, the time-domain length L of PUCCH format 3 is 4 symbols, and the repetition number is 4. The PUCCH repetitions are in 4 consecutive slots starting from slot n+k; in each slot, the time-frequency resources occupied by the PUCCH repetitions are the same.

[0085] Figure 12 is a schematic diagram of another example of PUCCH format 3, showing the case of PUCCH time-domain repetition. As shown in Figure 12 In the example of Figure 12 , inter-slot frequency hopping occurs. As shown in Figure 11 , similar to the example of Figure 12 , the difference is that in the example of , the PUCCH repetitions of PUCCH format 3 alternately occupy different frequency domain resources in different slots.

[0086] Figure 10 In addition, it should be noted that the PUCCH with time-domain repetition can also be subjected to intra-slot frequency hopping. Wherein, in each slot, the frequency hopping manner is referred to

[0087] In the embodiments of the present application, PUCCH format 4 is similar to PUCCH format 3. The difference is that the frequency domain bandwidth occupied by PUCCH format 4 is fixed as 1 PRB. And in order to facilitate resource sharing between UEs, PUCCH format 4 can be subjected to block-wise spreading (block-wise spreading), or frequency domain expansion, for details, please refer to the related technology, and the description is omitted here.

[0088] The various embodiments of the present application will be described below in conjunction with the accompanying drawings. These embodiments are only exemplary and not limiting of the present application.

[0089] Embodiments of the first aspect

[0090] The embodiments of the present application provide a method for sending uplink control information, which is described from the terminal device side, Figure 13This is a schematic diagram of the uplink control information transmission method according to an embodiment of this application. Please refer to it. Figure 13 The method includes:

[0091] 1301: The terminal device sends uplink control information (PUCCH) associated with at least two TRPs.

[0092] According to the method described in the embodiments of this application, uplink control information is transmitted in a spatial diversity manner. That is, on the terminal side, the same data can reach the network side via different spatial paths or via different TRPs (transmission and reception points). In this way, even if some paths are blocked, other paths can still continue to operate, thereby ensuring the high reliability of uplink control information. Furthermore, since this method can utilize spatial diversity gain, it can avoid or reduce the number of retransmissions of uplink control information, thereby reducing the transmission latency of uplink data.

[0093] In this application embodiment, as described above, the format of the resource corresponding to the above PUCCH is at least one of the following:

[0094] PUCCH format 0;

[0095] PUCCH format 1;

[0096] PUCCH format 2;

[0097] PUCCH format 3;

[0098] PUCCH format 4.

[0099] In some embodiments, associating uplink control information with at least two TRPs means that the uplink control information is cyclically mapped (associated) with each TRP in units of N1 symbols. For example, the uplink control information is associated with the first TRP of the at least two TRPs in its first N1 symbols, and with the second TRP of the at least two TRPs in its next N1 symbols. Furthermore, for the remaining symbols of the uplink control information, the same TRP association method (or the same TRP mapping pattern) is applied, that is, it is still associated (mapped) with the first TRP and the second TRP in units of N1 symbols respectively.

[0100] According to the above embodiments, PUCCH is sent to different TRPs at the symbol level, which increases reliability. Furthermore, when some TRPs are blocked, it can quickly communicate with network devices through other paths in the following symbols, resulting in low latency.

[0101] In the above embodiments, N1 can be 1 or 2. In some embodiments, each TRP is mapped at least once per slot of the PUCCH.

[0102] In some embodiments, the uplink control information is associated with at least two TRPs means that, in a slot associated with the uplink control information, the uplink control information is cyclically mapped (associated) with the TRPs in time domain portions within the slot. For example, in a slot associated with the uplink control information, the uplink control information is associated with a first TRP of the at least two TRPs in a first time domain portion thereof, and the uplink control information is associated with a second TRP of the at least two TRPs in the remaining time domain portions.

[0103] According to the above embodiments, the PUCCH can be transmitted to different TRPs in one slot respectively, which increases the reliability, and when a part of the TRPs is blocked, the network device can quickly communicate with the network device through other paths, and the latency is low. In addition, this method can map the PUCCH time domain resources in one slot to different TRPs respectively, which is beneficial to hardware implementation. This is because hardware usually processes uplink control information in time slots, and this method can match the processing time of hardware at the time slot level, thereby reducing the hardware cost.

[0104] In the above embodiments, in some embodiments, each TRP is mapped at least once per slot of the PUCCH.

[0105] In the above embodiments, the number of symbols of each time domain portion can be a function of the total number of the at least one TRP. In this way, the PUCCH time domain resources in one slot can be mapped to different TRPs respectively, which is beneficial to hardware implementation. This is because hardware usually processes uplink control information in time slots, and this method can match the processing time of hardware at the time slot level, thereby reducing the hardware cost.

[0106] In some embodiments, the uplink control information is associated with at least two TRPs means that the uplink control information is cyclically mapped (associated) with the TRPs in N2 slots. For example, the uplink control information is associated with a first TRP of the at least two TRPs in the first N2 slots thereof, and the uplink control information is associated with a second TRP of the at least two TRPs in the next N2 slots. And for the remaining slots of the uplink control information, the same TRP association method (or the same TRP mapping pattern) as the foregoing is applied, that is, the first TRP and the second TRP are still associated respectively in N2 slots.

[0107] According to the above embodiment, the PUSCH is switched between the plurality of TRPs in units of slots, the total number of TRP switching can be reduced, the method is suitable for low-capability terminal devices, and is beneficial to reduce the production cost of the terminal device. Here, the low-capability terminal device refers to, for example, a terminal device whose number of TRP switching is limited per unit time; or in a scenario where the reliability requirement is high but the delay requirement is relatively loose, the terminal device can apply this method to reduce the number of TRP switching, thereby achieving the effect of power saving.

[0108] In the above embodiment, the number of N2 can be 1, 2, 4 or 8. Generally, among the plurality of TRPs, the TRP with the best channel quality is preferentially transmitted in the time domain. When N2 is large, in the absence of occlusion, the terminal device can transmit data through the optimal TRP faster, thereby improving the system performance. When N2 is small, in the case of occlusion of the optimal TRP, since different TRPs are alternately mapped in a shorter time unit, the terminal device can transmit data through other TRPs faster, thereby reducing the delay.

[0109] Figure 14 is a schematic diagram of an example of a mapping relationship between PUCCH format 0 and each TRP, Figure 14 corresponds to Figure 1 , and takes the case of PUCCH related to two TRPs as an example.

[0110] Figure 14 The mapping mode of may be referred to as inter-symbol TRP mapping, that is, the PUCCH is cyclically mapped (related) to each TRP in units of N1 (N1 = 1) symbols. As shown in Figure 14 , the first symbol of the PUCCH is related to TRP #1, and the second symbol of the PUCCH is related to TRP #2.

[0111] Figure 15 is a schematic diagram of an example of a mapping relationship between PUCCH format 1 and each TRP, Figure 15 corresponds to Figure 3 , and takes the case of PUCCH related to two TRPs as an example.

[0112] As shown in Figure 15 , in the inter-block TRP mapping, two consecutive symbols (one DM-RS and one UCI) are regarded as a block, which is mapped to a TRP; if the length of the PUCCH is odd, the last block only contains the DM-RS. In this example, the PUCCH is cyclically mapped (related) to each TRP in units of N1 (N1 = 2) symbols.

[0113] As Figure 15 shown, in intra-slot TRP mapping, a PUCCH within a slot is divided into two time-domain parts, where the first time-domain part has a length of mapped to TRP#1, and the remaining time-domain part is mapped to TRP#2. Wherein, is the number of symbols occupied by a PUCCH within a slot. In this example, the PUCCH is associated with TRP#1 and TRP#2 in two time-domain parts within slot n+k (the first 6 symbols and the last 6 symbols of slot n+k) respectively.

[0114] In the above embodiments, the length of the orthogonal cover code sequence of the uplink control information can be determined according to the time domain resource related to the uplink control information, and / or according to the time domain length of the repetition or transmission opportunity related to the uplink control information. Wherein, the time domain resource, repetition or transmission opportunity is related to one of the at least two TRPs. Thus, since the channels corresponding to each TRP are different, such design makes the time-frequency resources of the uplink control information corresponding to different TRPs correspond to the length of the cover code, so that a group of UEs corresponding to similar channel characteristics (corresponding to the same TRP) share a group of orthogonal cover codes, which can guarantee the orthogonality of the cover code, avoid interference between terminal devices, and improve system performance.

[0115] For example, as Figure 15 shown in inter-block TRP mapping, the length of the orthogonal cover code sequence of the PUCCH can be determined according to the number of DM-RS or UCI in the block. Since a block includes one DM-RS and one UCI, the length of the orthogonal cover code sequence is 1.

[0116] For another example, as Figure 15 shown in inter-block TRP mapping, the length of the orthogonal cover code sequence of the PUCCH can be determined according to the number of DM-RS or UCI corresponding to the same TRP in the slot. Since the number of DM-RS or UCI corresponding to TRP#1 in slot n+k is 3, the length of the orthogonal cover code sequence is 3.

[0117] For another example, as Figure 15 shown in intra-slot TRP mapping, the length of the orthogonal cover code sequence of the PUCCH can also be determined according to the number of DM-RS or UCI corresponding to the same TRP in the slot. Since the number of DM-RS or UCI corresponding to TRP#1 in slot n+k is 3, the length of the orthogonal cover code sequence is also 3.

[0118] It should be noted that the mapping relationship between the length of the orthogonal cover sequence and the corresponding orthogonal cover sequence can refer to the related art, that is, reuse the mapping manner of the related art, and the present application does not limit this.

[0119] In addition, Figure 15 Only one slot, that is, slot n+k, is shown, and when the time domain resource occupied by the PUCCH exceeds one slot, each slot of the PUCCH uses the above method for TRP mapping and orthogonal cover mapping.

[0120] Figure 16 is a schematic diagram of another example of the mapping relationship between PUCCH format 1 and each TRP, Figure 16 The scenario of Figure 5 , and taking the case that the PUCCH is related to two TRPs as an example.

[0121] As Figure 16 indicated, in inter-slot TRP mapping, the PUCCH in each slot is alternately mapped to two TRPs (TRP#1 and TRP#2) in time sequence; in inter-2-slot TRP mapping, the PUCCH in each slot is alternately mapped to two TRPs (TRP#1 and TRP#2) in time sequence.

[0122] Figure 17 is a schematic diagram of an example of the mapping relationship between PUCCH format 2 and each TRP, Figure 17 The scenario of Figure 7 , and taking the case that the PUCCH is related to two TRPs as an example.

[0123] Figure 17 The mapping manner of Figure 17 may be referred to as inter-symbol TRP mapping, as indicated, the first symbol of the PUCCH is related to TRP#1, and the second symbol of the PUCCH is related to TRP#2.

[0124] Figure 18 is a schematic diagram of another example of the mapping relationship between PUCCH format 2 and each TRP, Figure 18 The example of Figure 17 is a variation of the example of Figure 17The difference is that the first symbol of the PUCCH carries the same number of UCI bits as the second symbol. In other words, the first symbol corresponds to PUCCH repetition #1, and the second symbol corresponds to PUCCH repetition #2. Figure 18 In the example, with Figure 17 Similarly, the first symbol of PUCCH is associated with TRP#1, and the second symbol is associated with TRP#2. It should be noted that the format corresponding to PUCCH is only an example of PUCCH format 2. This example of PUCCH can also be any PUCCH format other than 0-4.

[0125] Figure 19 This is another example of the mapping relationship between PUCCH format 2 and each TRP. Figure 19 The example is Figure 18 A variation of the example, with Figure 18 Unlike other examples, each PUCCH repetition consists of two symbols, with the first half (the first and second symbols) carrying the same number of UCI bits as the second half (the third and fourth symbols). Figure 19 In this example, the first and second symbols of PUCCH are associated with TRP#1, and the third and fourth symbols are associated with TRP#2. Similar to the previous example, the format corresponding to PUCCH is simply an example of PUCCH format 2. The PUCCH in this example could also be a PUCCH format other than PUCCH formats 0-4.

[0126] Figure 20 This is a schematic diagram illustrating an example of the mapping relationship between PUCCH format 3 and each TRP. Figure 20 The scene corresponds to Figure 9 Furthermore, taking PUCCH as an example related to two TRPs.

[0127] Figure 20 The mapping method can be called intra-TRP mapping, such as... Figure 20 As shown, the PUCCH within a slot is divided into two time-domain parts, where the length of the first time-domain part is... The remaining time domain portion is mapped to TRP#1, and the rest is mapped to TRP#2. Among these, The number of symbols occupied by a PUCCH in a slot (in this example) ).

[0128] Figure 21 is a schematic diagram of another example of mapping relationship of PUCCH format 3 and each TRP, Figure 21 The scenario of Figure 11 , and taking the PUCCH related to two TRPs as an example. Different from the scenario of Figure 11 , in the scenario of Figure 21 , only two time slots, time slot n+k and time slot n+k+1, are shown.

[0129] As shown in Figure 21 , in the inter-slot TRP mapping, the PUCCH in each time slot is alternately mapped to two TRPs (TRP#1 and TRP#2) in the time domain order in units of each time slot; in the inter-2-slot TRP mapping, the PUCCH in each time slot is alternately mapped to two TRPs (TRP#1 and TRP#2) in the time domain order in units of each two time slots.

[0130] In the embodiments of the present application, in some embodiments, the terminal device can perform frequency hopping on the transmission of the uplink control information by the at least two TRPs when transmitting the uplink control information. For example, the terminal device can perform frequency hopping on the transmission of the uplink control information by one of the at least two TRPs according to the transmission opportunity, repetition or time-frequency resource associated with the TRP.

[0131] According to the above embodiments, in the case of occurrence of occlusion, even if only a part of the TRPs can work normally, the transmission of the uplink control signal can also be reasonably performed frequency hopping according to the frequency hopping pattern, and high frequency domain diversity gain can be achieved.

[0132] In some embodiments, performing frequency hopping can mean performing frequency hopping per slot according to the time slot in which the uplink control information is located, or performing frequency hopping within a slot according to the frequency domain part corresponding to the uplink control information in the time slot.

[0133] In some embodiments, the frequency hopping pattern associated with each of the at least two TRPs can be the same. In this way, the multiple TRPs apply the same frequency hopping indication information, which can save signaling overhead. The present application is not limited thereto, and the frequency hopping pattern associated with each of the at least two TRPs can also be different.

[0134] In embodiments of the present application, the frequency hopping pattern can be at least one of the following:

[0135] Whether frequency hopping occurs or not;

[0136] Frequency hopping manner;

[0137] The number of frequency hopping (hop number); that is, the number of frequency hopping or hop number corresponding to frequency hopping;

[0138] The starting position of frequency hopping; for example, the starting frequency domain position of frequency hopping;

[0139] Frequency hopping offset; for example, the relative frequency domain position of each subsequent hop.

[0140] Figure 22 is a schematic diagram of the frequency hopping pattern of intra-slot frequency hopping corresponding to the inter-symbol TRP mapping shown in Figure 14 As shown in Figure 23 The first symbol of the PUCCH corresponding to TRP #1 and the second symbol of the PUCCH corresponding to TRP #2 occupy different frequency resources.

[0141] Figure 15 is a schematic diagram of the frequency hopping pattern of intra-slot frequency hopping corresponding to the Inter-block TRP mapping shown in Figure 23 As shown in Figure 23As shown, frequency hopping occurs within a slot on different time-domain portions of the same TRP. Taking two hops as an example, the first time-domain portion corresponding to TRP#1 consists of time-domain symbols 2 and 3, corresponding to the first hop; the second time-domain portion corresponds to time-domain symbols 6 and 7, corresponding to the second hop; and the third time-domain portion corresponds to time-domain symbols 10 and 11, corresponding to the first hop (looping to the first of the two hops). The frequency hopping mode associated with TRP#2 is the same as that associated with TRP#1. Specifically, the time-frequency resource corresponding to TRP#1 performs frequency hopping on a block-by-block basis, using intra-slot frequency hopping, with a hopping count (or candidate frequency domain position) of 2. Similarly, the time-frequency resource corresponding to TRP#2 performs frequency hopping on a block-by-block basis, also using intra-slot frequency hopping, with a hopping count (or candidate frequency domain position) of 2. Furthermore, the frequency domain position of the starting block corresponding to TRP#1 is the same as that of the starting block corresponding to TRP#2. Additionally, the frequency offset between the two frequency hopping candidate positions corresponding to TRP#1 is the same as that between the two frequency hopping candidate positions corresponding to TRP#2.

[0142] exist Figure 24 In the example, TRP#1 and TRP#2 have the same frequency hopping mode, but as mentioned earlier, their frequency hopping modes can also be different. Furthermore, when the time domain resources occupied by the PUCCH exceed one time slot, each slot of the PUCCH uses the above method to map the frequency hopping mode.

[0143] Figure 15 Is with Figure 24 The diagram shows the frequency hopping mode of intra-slot frequency hopping corresponding to intra-slot TRP mapping. Figure 24 As shown, frequency hopping occurs within a slot on different time-domain portions corresponding to the same TRP. The transmission opportunity corresponding to TRP#1 (time-domain symbols 3 to 8, i.e., length...) For example, the length of the first part is... Map to the first hop, and the rest to the second hop.

[0144] exist Figure 24In the examples, the length of the orthogonal mask sequence can be determined based on the time-domain length of each hop. For example, for the first hop associated with TRP#1, the hop length is 3 symbols, including two DM-RS symbols, so the corresponding mask length is 2; it includes one UCI symbol, so the corresponding mask length is 1. For the second hop associated with TRP#1, the hop length is 3 symbols, including one DM-RS symbol, so the corresponding mask length is 1; it includes two UCI symbols, so the corresponding mask length is 2. TRP#2 has a similar relationship, which is omitted here. The mapping relationship between the length of the orthogonal mask sequence and the orthogonal mask sequence refers to related techniques, which are omitted here.

[0145] exist Figure 25 In the example, TRP#1 and TRP#2 use the same frequency hopping mode. Specifically, the time-frequency resource corresponding to TRP#1 performs frequency hopping on a time-domain basis, using intra-slot frequency hopping, with two hops (or candidate frequency domain positions). Similarly, the time-frequency resource corresponding to TRP#2 performs frequency hopping on a time-domain basis, also using intra-slot frequency hopping, with two hops (or candidate frequency domain positions). Furthermore, the frequency domain position of the starting block corresponding to TRP#1 is the same as that of the starting block corresponding to TRP#2. Additionally, the frequency offset between the two candidate frequency hopping positions corresponding to TRP#1 is the same as that of the two candidate frequency hopping positions corresponding to TRP#2. However, as mentioned earlier, the frequency hopping modes corresponding to the two can also be different. In addition, when the time domain resources occupied by PUCCH exceed one time slot, the above method is used to map the frequency hopping mode for each slot of PUCCH.

[0146] Figure 16 Is with Figure 25 The diagram shows the frequency hopping mode of inter-slot frequency hopping corresponding to inter-2-slot TRP mapping. Figure 25 As shown, frequency hopping occurs sequentially on different repetitions (transmission opportunities) corresponding to the same TRP. Figure 25Take two hops as an example. The first repetition (transmission opportunity) corresponding to TRP #1 is in slot n+k, corresponding to the first hop; the second repetition (transmission opportunity) corresponding to TRP #1 is in slot n+k+1, corresponding to the second hop. The frequency hopping pattern associated with TRP #2 is the same as that associated with TRP #1. Specifically, the time-frequency resource corresponding to TRP #1 performs frequency hopping in units of repetitions, and the frequency hopping mode is inter-slot frequency hopping, and the number of frequency hopping (or the candidate frequency domain position of frequency hopping) is 2; similarly, the time-frequency resource corresponding to TRP #2 also performs frequency hopping in units of repetitions, and the frequency hopping mode is also inter-slot frequency hopping, and the number of frequency hopping (or the candidate frequency domain position of frequency hopping) is also 2. In addition, the frequency domain position of the starting repetition corresponding to TRP #1 is the same as that of the starting repetition corresponding to TRP #2. In addition, the frequency domain difference of the two frequency hopping candidate positions corresponding to TRP #1 is the same as that of the two frequency hopping candidate positions corresponding to TRP #2.

[0147] In Figure 26 the example, it is taken as an example that the frequency hopping patterns corresponding to TRP #1 and TRP #2 are the same, but as mentioned earlier, the frequency hopping patterns corresponding to the two can also be different.

[0148] Figure 16 is a schematic diagram of the inter-slot frequency hopping (inter-slot frequency hopping) frequency hopping mode corresponding to the inter-slot TRP mapping shown in Figure 26 As shown in Figure 26 , frequency hopping will occur in turn on different repetitions (transmission opportunities) corresponding to the same TRP. Figure 26Taking two hops as an example, the first repetition (transmission opportunity) corresponding to TRP#1 is in slot n+k, corresponding to the first hop; the second repetition (transmission opportunity) corresponding to TRP#1 is in slot n+k+2, corresponding to the second hop. The frequency hopping mode associated with TRP#2 is the same as that associated with TRP#1. Specifically, the time-frequency resources corresponding to TRP#1 perform frequency hopping on a repetition-by-repetition basis, using inter-slot frequency hopping, with a hop count (or candidate frequency domain position) of 2. Similarly, the time-frequency resources corresponding to TRP#2 perform frequency hopping on a repetition-by-repetition basis, also using inter-slot frequency hopping, with a hop count (or candidate frequency domain position) of 2. Furthermore, the frequency domain position of the starting repetition corresponding to TRP#1 is the same as that of the starting repetition corresponding to TRP#2. In addition, the frequency offset of the two frequency hopping candidate positions corresponding to TRP#1 is the same as that of the two frequency hopping candidate positions corresponding to TRP#2.

[0149] exist Figure 27 In the example, TRP#1 and TRP#2 have the same frequency hopping mode, but as mentioned earlier, the frequency hopping modes of the two can also be different.

[0150] Figure 17 Is with Figure 27 The diagram shows the frequency hopping mode of inter-slot frequency hopping corresponding to the inter-symbol TRP mapping. Figure 28 As shown, the first symbol of the PUCCH corresponding to TRP#1 and the second symbol of the PUCCH corresponding to TRP#2 occupy different frequency domain resources.

[0151] Figure 19 Is with Figure 28 The diagram shows the frequency hopping mode of intra-slot frequency hopping corresponding to the inter-symbol TRP mapping. Figure 28As shown, frequency hopping occurs between different symbols within each PUCCH repetition. For example, taking two hops as an example, for PUCCH repetition #1 corresponding to TRP #1, its first symbol corresponds to the first hop, and its second symbol corresponds to the second hop. For PUCCH repetition #2 corresponding to TRP #2, its first symbol corresponds to the first hop, and its second symbol corresponds to the second hop. Here, the frequency hopping pattern associated with TRP #2 is the same as the frequency hopping pattern associated with TRP #1. Specifically, the time-frequency resource corresponding to TRP #1 performs frequency hopping in units of repetition, the frequency hopping manner is intra-slot frequency hopping, and the number of frequency hopping (or the candidate frequency domain position of frequency hopping) is 2. Similarly, the time-frequency resource corresponding to TRP #2 also performs frequency hopping in units of repetition, the frequency hopping manner is also intra-slot frequency hopping, and the number of frequency hopping (or the candidate frequency domain position of frequency hopping) is also 2. In addition, the frequency domain position of the starting hop of repetition #1 corresponding to TRP #1 is the same as the frequency domain position of the starting hop of repetition #2 corresponding to TRP #2. In addition, the frequency domain difference of the two frequency hopping candidate positions corresponding to TRP #1 is the same as the frequency domain difference of the two frequency hopping candidate positions corresponding to TRP #2.

[0152] In Figure 20 the example, the frequency hopping patterns corresponding to TRP #1 and TRP #2 are the same, but as described above, the frequency hopping patterns corresponding to the two can also be different.

[0153] In the embodiments of the present application, the frequency hopping pattern corresponding to the intra-slot TRP mapping of Figure 24 may refer to Figure 21 , the frequency hopping pattern corresponding to the inter-slot TRP mapping of Figure 21 may refer to Figure 25 , the frequency hopping pattern corresponding to the inter-2-slot TRP mapping of Figure 13 may refer to Figure 13 , and the description is omitted here.

[0154] The mapping between the PUCCH and the TRP and the frequency hopping mode corresponding to each mapping is exemplified above by taking PUCCH format 0, PUCCH format 1, PUCCH format 2 and PUCCH format 3 as examples. The TRP mapping of PUCCH format 4 and the frequency hopping mode corresponding to each mapping can refer to the PUCCH format 3, and the description is omitted here.

[0155] In the embodiments of the present application, in some embodiments, as shown in Figure 13 Optionally, the method further includes:

[0156] 1302: The terminal device generates a sequence corresponding to the uplink control information according to the at least two TRPs.

[0157] According to the above-mentioned embodiments, since the corresponding TRPs are different, the interference terminal device set corresponding to each TRP is different. The sequence corresponding to the uplink control information is generated according to the related TRP, which is beneficial to randomize the interference between the terminal devices corresponding to the same TRP (of the uplink control information transmission), reduce the interference between these terminal devices, and thus improve the system performance.

[0158] In the embodiments of the present application, in some embodiments, as shown in Figure 13 Optionally, the method further includes:

[0159] 1303: The terminal device receives the indication information sent by the network device; the indication information indicates that the uplink control information is related to at least two TRPs.

[0160] In some embodiments, the indication information is contained in the RRC signaling, and the parameters provided by the RRC signaling are the same for all resources belonging to the same PUCCH format (the provided parameters that are common for all PUCCH resources of a format). One of the parameters provided by the RRC signaling is used to indicate that the uplink control information is related to the at least two TRPs.

[0161] According to the above-mentioned embodiments, the same format of PUCCH applies the same TRP mapping mode, which is beneficial to save the signaling overhead. And each PUCCH resource can correspond to a respective TRP mapping mode, which is beneficial to the base station to more flexibly indicate the uplink control channel transmission, and improve the system performance.

[0162] In some embodiments, the indication information is included in RRC signaling, and the RRC signaling is used for a PUCCH resource with an ID.

[0163] According to the above embodiments, each PUCCH resource with an ID can be configured with a corresponding TRP mapping manner. This facilitates the base station to more flexibly indicate uplink control channel transmission according to the channel state, and improves the system performance.

[0164] In the above embodiments, the PUCCH format refers to one of the following:

[0165] PUCCH format 0;

[0166] PUCCH format 1;

[0167] PUCCH format 2;

[0168] PUCCH format 3;

[0169] PUCCH format 4.

[0170] In the embodiments of the present application, the TRP is equivalent to at least one of the following concepts:

[0171] Transmission configuration indication state (TCI state);

[0172] Spatial relation;

[0173] Reference signal;

[0174] Reference signal group;

[0175] SRS resource group (the resource group includes one or more SRS resources);

[0176] Spatial domain filter;

[0177] Power control parameter; and

[0178] A group of time alignment related parameters.

[0179] The specific meanings of the above concepts can be referred to the related art, and the description is omitted here.

[0180] For example, at least one transmission opportunity of the PUSCH is related to at least two TRPs, which is equivalent to at least one transmission opportunity of the PUSCH is related to at least two TCI states, that is, the terminal device transmits the PUSCH according to the parameters corresponding to the at least two TCI states.

[0181] For another example, at least one transmission opportunity of the PUSCH is related to at least two TRPs, which is equivalent to at least one transmission opportunity of the PUSCH is related to at least two spatial relations.

[0182] For another example, at least one transmission opportunity of the PUSCH is related to at least two TRPs, which is equivalent to at least one transmission opportunity of the PUSCH is related to at least two reference signals. Here, the reference signal can be a pathloss RS, a CSI-RS (Channel State Information Reference Signal), an SSB (Synchronization Signal Block), an SRS (Sounding Reference Signal), etc., and the present application is not limited thereto.

[0183] For another example, at least one transmission opportunity of the PUSCH is related to at least two TRPs, which is equivalent to at least one transmission opportunity of the PUSCH is related to at least two reference signal groups. The reference signal group is one or more reference signals (RS). Here, the reference signal can be a pathloss RS, a CSI-RS (Channel State Information Reference Signal), an SSB (Synchronization Signal Block), an SRS (Sounding Reference Signal), etc., and the present application is not limited thereto.

[0184] For another example, at least one transmission opportunity of the PUSCH is related to at least two TRPs, which is equivalent to at least one transmission opportunity of the PUSCH is related to at least two spatial domain filters.

[0185] For another example, at least one transmission opportunity of the PUSCH is related to at least two TRPs, which is equivalent to at least one transmission opportunity of the PUSCH is related to at least two power control parameters.

[0186] It is worth noting that the above Figure 29The embodiments of the present application are only illustrative, but the present application is not limited thereto. For example, the execution order between various operations can be adjusted as appropriate, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above description, and the present application is not limited to the above-described description. Figure 29

[0187] According to the method of the embodiments of the present application, the uplink control information is transmitted in a spatial diversity manner, thereby ensuring high reliability of the uplink control information. In addition, since the method can utilize spatial diversity gain, the number of retransmissions of the uplink control information can be avoided or reduced, thereby reducing the transmission delay of the uplink data.

[0188] Embodiments of the second aspect

[0189] The embodiments of the present application provide an indication method of uplink control information transmission, which is described from the network side. The method is a network side processing corresponding to the method of the embodiments of the first aspect, and the same content as the embodiments of the first aspect is not repeated.

[0190] Figure 30 is a schematic diagram of the indication method of uplink control information transmission of the embodiments of the present application, as shown in the method comprises: Figure 30

[0191] 2901: The network device sends indication information to the terminal device, and the indication information indicates that the uplink control information is related to at least two TRPs.

[0192] In some embodiments, the uplink control information related to at least two TRPs means that

[0193] The first TRP of the at least two TRPs is related to the first N1 symbols of the uplink control information, and the second TRP of the at least two TRPs is related to the next N1 symbols of the uplink control information.

[0194] In some embodiments, the remaining symbols of the uplink control information are related to the first TRP and the second TRP respectively in units of N1 symbols.

[0195] In some embodiments, the number of N1 is at least one of 1, 2.

[0196] In some embodiments, the uplink control information related to at least two TRPs means that

[0197] ​​In a time slot associated with the uplink control information, a first time domain part of the uplink control information is associated with a first TRP of the at least two TRPs, and a remaining time domain part of the uplink control information is associated with a second TRP of the at least two TRPs.

[0198] In some embodiments, the uplink control information being associated with the at least two TRPs means that,

[0199] a first N2 time slots of the uplink control information are associated with a first TRP of the at least two TRPs, and a next N2 time slots of the uplink control information are associated with a second TRP of the at least two TRPs.

[0200] In some embodiments, the remaining time slots of the uplink control information are respectively associated with the first TRP and the second TRP in units of N2 time slots.

[0201] In some embodiments, the number of N2 is at least one of: 1, 2, 4, 8.

[0202] In some embodiments, the indication information is contained in RRC signaling, and the indicated parameters are common for all PUCCH resources of a format.

[0203] In some embodiments, the indication information is contained in RRC signaling, and the RRC signaling is applied to a PUCCH resource with an ID.

[0204] In some embodiments, the PUCCH format is one of:

[0205] PUCCH format 0;

[0206] PUCCH format 1;

[0207] PUCCH format 2;

[0208] PUCCH format 3;

[0209] PUCCH format 4.

[0210] In some embodiments, the TRP is equivalent to at least one of:

[0211] Transmission configuration indication state;

[0212] Spatial relation;

[0213] Reference signal;

[0214] Reference signal group;

[0215] SRS resource group;

[0216] Spatial domain filter;

[0217] Power control parameter; and

[0218] A set of time alignment (TA) related parameters.

[0219] According to the method of the embodiments of the present application, the uplink control information is transmitted in a spatial diversity manner, thereby ensuring high reliability of the uplink control information. In addition, since the method can utilize spatial diversity gain, the number of retransmissions of the uplink control information can be avoided or reduced, thereby reducing the transmission delay of the uplink data.

[0220] Embodiments of the third aspect

[0221] The embodiments of the present application provide a sending device of uplink control information. The device may, for example, be a terminal device, or one or more components or assemblies configured in the terminal device.

[0222] Figure 30 is a schematic diagram of the sending device of uplink control information of the embodiments of the present application. Since the principle of solving the problem of the device is similar to that of the method of the embodiments of the first aspect, the specific implementation thereof can refer to the implementation of the method of the embodiments of the first aspect, and the same content will not be described repeatedly.

[0223] As Figure 30 indicated, the sending device 3000 of uplink control information of the embodiments of the present application includes a sending unit 3001 that sends uplink control information, the uplink control information being related to at least two TRPs.

[0224] In some embodiments, the format of the resource corresponding to the uplink control information is at least one of the following:

[0225] PUCCH format 0;

[0226] PUCCH format 1;

[0227] PUCCH format 2;

[0228] PUCCH format 3;

[0229] PUCCH format 4.

[0230] In some embodiments, the uplink control information being related to at least two TRPs means that,

[0231] the uplink control information is related to a first TRP of the at least two TRPs in the first N1 symbols, and the uplink control information is related to a second TRP of the at least two TRPs in the next N1 symbols.

[0232] In some embodiments, the remaining symbols of the uplink control information are respectively related to the first TRP and the second TRP in units of N1 symbols.

[0233] In some embodiments, the number of N1 is at least one of: 1, 2.

[0234] In some embodiments, the uplink control information being related to at least two TRPs means that,

[0235] In a time slot associated with the uplink control information, the uplink control information is related to a first TRP of the at least two TRPs in a first time domain part, and the uplink control information is related to a second TRP of the at least two TRPs in the remaining time domain part.

[0236] In some embodiments, the uplink control information being related to at least two TRPs means that,

[0237] the uplink control information is related to a first TRP of the at least two TRPs in the first N2 time slots, and the uplink control information is related to a second TRP of the at least two TRPs in the next N2 time slots.

[0238] In some embodiments, the remaining time slots of the uplink control information are respectively related to the first TRP and the second TRP in units of N2 time slots.

[0239] In some embodiments, the number of N2 is at least one of: 1, 2, 4, 8.

[0240] In some embodiments, the sending unit 3001 performs frequency hopping on the sending of the uplink control information according to the at least two TRPs.

[0241] In some embodiments, the at least two TRPs means that,

[0242] The transmission occasion, repetition, or time-frequency resource associated with one of the at least two TRPs.

[0243] In some embodiments, performing frequency hopping means performing frequency hopping per slot according to the time slot where the uplink control information is located.

[0244] In some embodiments, performing frequency hopping means performing frequency hopping within a slot based on the time domain portion corresponding to the uplink control information within a time slot containing the uplink control information.

[0245] In some embodiments, each of the at least two TRPs is associated with the same frequency hopping pattern.

[0246] In some embodiments, such as Figure 30 As shown, the uplink control information transmitting device 3000 further includes:

[0247] The determining unit 3002 determines the length of the orthogonal mask of the uplink control information based on the time-domain length of the time-domain resources, repetitions, or transmission opportunities associated with the uplink control information; wherein the time-domain resources, repetitions, or transmission opportunities are associated with one of the at least two TRPs.

[0248] In some embodiments, such as Figure 30 As shown, the uplink control information transmitting device 3000 further includes:

[0249] The generation unit 3003 generates the sequence corresponding to the uplink control information based on the at least two TRPs.

[0250] In some embodiments, such as Figure 31 As shown, the uplink control information transmitting device 3000 further includes:

[0251] The receiving unit 3004 receives indication information sent by the network device; the indication information indicates that the uplink control information is associated with at least two TRPs.

[0252] In some embodiments, the indication information is contained in RRC signaling, the indicated parameters that are common for all PUCCH resources of a format.

[0253] In some embodiments, the indication information is contained in RRC signaling, the indication information is applied to a PUCCH resource with an ID.

[0254] In some embodiments, the PUCCH format refers to one of the following:

[0255] PUCCH format 0;

[0256] PUCCH format 1;

[0257] PUCCH format 2;

[0258] PUCCH format 3;

[0259] PUCCH format 4.

[0260] In some embodiments, the TRP is equivalent to at least one of the following:

[0261] Transmission configuration indication state;

[0262] Spatial relation;

[0263] Reference signal;

[0264] Reference signal group;

[0265] SRS resource group;

[0266] Spatial domain filter;

[0267] Power control parameter; and

[0268] A set of time alignment (TA) related parameters.

[0269] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The uplink control information sending device 3000 of the embodiments of the present application can also include other components or modules, and the specific content of these components or modules can be referred to related technologies.

[0270] In addition, for the sake of simplicity,Figure 31 The connection relationship or signal direction between the various components or modules is only exemplarily shown, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.

[0271] According to the embodiments of the present application, the uplink control information is transmitted in a spatial diversity manner, thereby ensuring high reliability of the uplink control information. In addition, since the spatial diversity gain can be utilized in this manner, the number of retransmissions of the uplink control information can be avoided or reduced, thereby reducing the transmission delay of the uplink data.

[0272] Embodiments of the fourth aspect

[0273] The embodiments of the present application provide an indication device for uplink control information transmission. The device may, for example, be a network device, or one or more components or assemblies configured in the network device.

[0274] Figure 32 is a schematic diagram of the indication device for uplink control information transmission according to the embodiments of the present application. Since the principle of solving the problem of the device is similar to the method of the embodiments of the second aspect, the specific implementation thereof can refer to the implementation of the method of the embodiments of the second aspect, and the same content will not be described repeatedly.

[0275] As Figure 12 shown, the indication device 3100 for uplink control information transmission according to the embodiments of the present application includes a sending unit 3101 configured to send indication information to a terminal device, wherein the indication information indicates that the uplink control information is related to at least two TRPs.

[0276] In some embodiments, the uplink control information being related to at least two TRPs means that

[0277] the uplink control information is related to a first TRP of the at least two TRPs in the first N1 symbols, and the uplink control information is related to a second TRP of the at least two TRPs in the next N1 symbols.

[0278] In some embodiments, the remaining symbols of the uplink control information are respectively related to the first TRP and the second TRP in units of N1 symbols.

[0279] In some embodiments, the number of N1 is at least one of 1 and 2.

[0280] In some embodiments, the uplink control information being related to at least two TRPs means that

[0281] In a time slot associated with the uplink control information, a first time domain part of the uplink control information is associated with a first TRP of the at least two TRPs, and a remaining time domain part of the uplink control information is associated with a second TRP of the at least two TRPs.

[0282] In some embodiments, the uplink control information being associated with the at least two TRPs means that,

[0283] a first N2 time slots of the uplink control information are associated with a first TRP of the at least two TRPs, and a next N2 time slots of the uplink control information are associated with a second TRP of the at least two TRPs.

[0284] In some embodiments, the remaining time slots of the uplink control information are respectively associated with the first TRP and the second TRP in units of N2 time slots.

[0285] In some embodiments, the number of N2 is at least one of: 1, 2, 4, 8.

[0286] In some embodiments, the indication information is contained in RRC signaling, and the indicated parameters that are common for all PUCCH resources of a format.

[0287] In some embodiments, the indication information is contained in RRC signaling, and the RRC signaling is applied to a PUCCH resource with an ID.

[0288] In some embodiments, the PUCCH format refers to one of:

[0289] PUCCH format 0;

[0290] PUCCH format 1;

[0291] PUCCH format 2;

[0292] PUCCH format 3;

[0293] PUCCH format 4.

[0294] In some embodiments, the TRP is equivalent to at least one of:

[0295] Transmission configuration indication state

[0296] Spatial relation

[0297] Reference signal

[0298] Reference signal group

[0299] SRS resource group

[0300] Spatial domain filter

[0301] Power control parameter; and

[0302] A set of time alignment (TA) related parameters.

[0303] According to the embodiments of the present application, the uplink control information is transmitted in a spatial diversity manner, thereby ensuring high reliability of the uplink control information. In addition, since the spatial diversity gain can be utilized in this manner, the number of retransmissions of the uplink control information can be avoided or reduced, thereby reducing the transmission delay of the uplink data.

[0304] Embodiments of the fifth aspect

[0305] The embodiments of the present application provide a communication system, Figure 33 is a schematic diagram of the communication system 3200, as Figure 33 shown, the communication system 3200 includes a network device 3201 and a terminal device 3202, for simplicity, Figure 33 only one terminal device and one network device are taken as examples for description, but the embodiments of the present application are not limited thereto.

[0306] In the embodiments of the present application, the network device 3201 and the terminal device 3202 can perform existing services or future implementable service transmission. For example, these services can include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), high reliability and low latency communication (URLLC), and vehicle-to-everything (V2X) communication, etc.

[0307] In some embodiments, the network device 3201 sends indication information to the terminal device 3202, the indication information indicating that the uplink control information is related to at least two TRPs; the terminal device 3202 receives the indication information and transmits the uplink control information according to the indication information.

[0308] In some embodiments, the terminal device 3202 is configured to perform the method described in the embodiments of the first aspect, and the network device is configured to perform the method described in the embodiments of the second aspect, the contents of which are incorporated herein, and the description is omitted here.

[0309] Embodiments of the present application further provide a terminal device, which may, for example, be a UE, but the present application is not limited thereto, and can also be other devices.

[0310] Figure 33 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 33 , the terminal device 3300 can include a processor 3301 and a memory 3302; the memory 3302 stores data and programs and is coupled to the processor 3301. It is worth noting that this diagram is exemplary; other types of structures can also be used to supplement or replace this structure to implement telecommunications functions or other functions.

[0311] For example, the processor 3301 can be configured to execute programs to implement the uplink control information sending method according to the embodiments of the first aspect.

[0312] As shown in Figure 34 , the terminal device 3300 can further include a communication module 3303, an input unit 3304, a display 3305, and a power supply 3306. Among them, the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the terminal device 3300 does not necessarily include all the components shown in Figure 34 , and the above-mentioned components are not essential; in addition, the terminal device 3300 can also include components not shown in Figure 34 , which can be referred to the prior art.

[0313] Embodiments of the present application further provide a network device, which may, for example, be a base station (gNB), but the present application is not limited thereto, and can also be other network devices.

[0314] Figure 34 is a schematic diagram of a network device according to an embodiment of the present application. As shown in Figure 34 , the network device 3400 can include a processor (such as a central processing unit CPU) 3401 and a memory 3402; the memory 3402 is coupled to the processor 3401. Among them, the memory 3402 can store various data; in addition, it also stores programs for information processing, and executes the programs under the control of the central processing unit 3401.

[0315] For example, the processor 3401 can be configured to execute programs to implement the indication method of uplink control information sending according to the embodiments of the second aspect.

[0316] In addition, as shown in ​ , the network device 3400 can further include a transceiver 3403 and an antenna 3404, etc.; among them, the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the network device 3400 does not necessarily include all the components shown in​ All the components shown in FIG. 34; in addition, the network device 3400 can also include ​ components not shown in FIG. 34 can refer to the prior art.

[0317] The embodiments of the present application also provide a computer readable program, wherein when the program is executed in a terminal device, the program causes the computer to execute the method for sending uplink control information in the embodiments of the first aspect in the terminal device.

[0318] The embodiments of the present application also provide a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the method for sending uplink control information in the embodiments of the first aspect in a network device.

[0319] The embodiments of the present application also provide a computer readable program, wherein when the program is executed in a network device, the program causes the computer to execute the method for indicating uplink control information sending in the embodiments of the second aspect in the network device.

[0320] The embodiments of the present application also provide a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the method for indicating uplink control information sending in the embodiments of the second aspect in a network device.

[0321] The apparatus and method of the present application can be realized by hardware, or realized by hardware in combination with software. The present application relates to a computer readable program, which, when executed by a logic component, can enable the logic component to realize the apparatus or constituent components described above, or enable the logic component to realize the various methods or steps described above. The logic component is, for example, a field programmable logic component, a microprocessor, a processor used in a computer, etc. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0322] The method / apparatus described in combination with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figures and / or a combination of one or more of the functional block diagrams can correspond to each software module of a computer program flow, or can correspond to each hardware module. These software modules can correspond to each step shown in the figures, respectively. These hardware modules can be realized by, for example, fixing the software modules by using a field programmable gate array (FPGA).

[0323] The software modules can reside in RAM, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. The storage medium can be coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium can be integral to the processor. The processor and the storage medium can reside in an ASIC. The software modules can be stored in a memory of the mobile terminal, or in a memory card that can be inserted into the mobile terminal. For example, if the device (e.g., mobile terminal) is a larger capacity MEGA-SIM card or a large capacity flash memory device, the software modules can be stored in the MEGA-SIM card or the large capacity flash memory device.

[0324] One or more of the functional blocks described in the accompanying drawings and / or one or more combinations of the functional blocks can be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any appropriate combination thereof, for performing the functions described in this application. One or more of the functional blocks described in the accompanying drawings and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0325] The application has been described in connection with certain embodiments. However, one of ordinary skill in the art will readily recognize from the disclosure herein that changes and modifications can be made thereto without departing from the scope of the present application. Accordingly, nothing in the present application should be construed as a limitation on the scope of the present application, but is intended to cover all possible modifications and equivalents.

[0326] In addition to the above-described embodiments disclosed in the present embodiment, the following notes are also disclosed:

[0327] 1. A method for transmitting uplink control information, wherein the method comprises:

[0328] A terminal device transmits uplink control information, the uplink control information being related to at least two TRPs.

[0329] 2. The method according to note 1, wherein the uplink control information being related to at least two TRPs means that:

[0330] The uplink control information is associated with a first TRP of the at least two TRPs over a first N1 symbols of the uplink control information, and the uplink control information is associated with a second TRP of the at least two TRPs over a next N1 symbols of the uplink control information.

[0331] 3. The method of appendix 2, wherein remaining symbols of the uplink control information are associated with the first TRP and the second TRP, respectively, in units of N1 symbols.

[0332] 4. The method of appendix 2, wherein the N1 is at least one of: 1, 2.

[0333] 5. The method of appendix 1, wherein the uplink control information being associated with at least two TRPs means that,

[0334] The uplink control information is associated with a first TRP of the at least two TRPs over a first N1 symbols of the uplink control information, and the uplink control information is associated with a second TRP of the at least two TRPs over a next N1 symbols of the uplink control information.

[0335] 6. The method of appendix 1, wherein the uplink control information being associated with at least two TRPs means that,

[0336] The uplink control information is associated with a first TRP of the at least two TRPs over a first N2 slots of the uplink control information, and the uplink control information is associated with a second TRP of the at least two TRPs over a next N2 slots of the uplink control information.

[0337] 7. The method of appendix 6, wherein remaining slots of the uplink control information are associated with the first TRP and the second TRP, respectively, in units of N2 slots.

[0338] 8. The method of appendix 6, wherein the N2 is at least one of: 1, 2, 4, 8.

[0339] 9. The method of appendix 1, wherein a terminal device transmits uplink control information, comprising:

[0340] The terminal device performs frequency hopping on transmission of the uplink control information by the at least two TRPs.

[0341] 10. The method of appendix 9, wherein the by the at least two TRPs means that,

[0342] a transmission occasion, a repetition, or a time-frequency resource associated with one of the at least two TRPs.

[0343] 11. The method of any one of Embodiments 9 or 10, wherein the performing frequency hopping comprises performing frequency hopping according to a time slot in which the uplink control information is located.

[0344] 12. The method of any one of Embodiments 9 or 10, wherein the performing frequency hopping comprises performing frequency hopping according to a time domain part corresponding to the uplink control information within a time slot in which the uplink control information is located.

[0345] 13. The method of Embodiment 9, wherein a frequency hopping pattern associated with each of the at least two TRPs is the same.

[0346] 13a. The method of Embodiment 13, wherein the frequency hopping pattern is at least one of:

[0347] whether frequency hopping occurs;

[0348] a frequency hopping manner;

[0349] a number of times of frequency hopping;

[0350] a starting position of frequency hopping;

[0351] a frequency hopping offset.

[0352] 14. The method of Embodiment 1, wherein the method further comprises:

[0353] determining a length of an orthogonal cover code of the uplink control information according to a time domain length of a time domain resource, a repetition, or a transmission occasion associated with the uplink control information, wherein the time domain resource, the repetition, or the transmission occasion is associated with one of the at least two TRPs.

[0354] 15. The method of Embodiment 1, wherein the method further comprises:

[0355] generating a sequence corresponding to the uplink control information according to the at least two TRPs.

[0356] 16. The method of Embodiment 1, wherein the method further comprises:

[0357] receiving indication information sent by a network device;

[0358] the indication information indicating that the uplink control information is associated with at least two TRPs.

[0359] 17. The method according to note 16, wherein the indication information is contained in RRC signaling, the indicated parameters that are common for all PUCCH resources of a format.

[0360] 17a. The method according to note 16, wherein the indication information is contained in RRC signaling, the RRC signaling acting on a PUCCH resource with an ID.

[0361] 18. The method according to note 17, wherein the PUCCH format refers to one of:

[0362] PUCCH format 0;

[0363] PUCCH format 1;

[0364] PUCCH format 2;

[0365] PUCCH format 3;

[0366] PUCCH format 4.

[0367] 19. The method according to any one of notes 1 to 18, wherein the TRP is equivalent to at least one of:

[0368] transmission configuration indication state;

[0369] spatial relation;

[0370] reference signal;

[0371] reference signal group;

[0372] SRS resource group;

[0373] spatial domain filter;

[0374] power control parameter; and

[0375] a set of time alignment (TA) related parameters.

[0376] 20. The method according to any one of notes 1 to 18, wherein the format of the resource corresponding to the uplink control information is at least one of:

[0377] PUCCH format 0;

[0378] PUCCH format 1;

[0379] PUCCH format 2;

[0380] PUCCH format 3;

[0381] PUCCH format 4.

[0382] 21. A method for indicating uplink control information transmission, the method comprising:

[0383] sending, by a network device, an indication information to a terminal device, the indication information indicating that an uplink control information is associated with at least two TRPs.

[0384] 22. The method of the dependent clause 21, wherein the uplink control information is associated with at least two TRPs means that,

[0385] the uplink control information is associated with a first TRP of the at least two TRPs in the first N1 symbols of the uplink control information, and the uplink control information is associated with a second TRP of the at least two TRPs in the next N1 symbols of the uplink control information.

[0386] 23. The method of the dependent clause 22, wherein the remaining symbols of the uplink control information are associated with the first TRP and the second TRP respectively in N1 symbols.

[0387] 24. The method of the dependent clause 22, wherein the number of N1 is at least one of: 1, 2.

[0388] 25. The method of the dependent clause 21, wherein the uplink control information is associated with at least two TRPs means that,

[0389] in a time slot associated with the uplink control information, the uplink control information is associated with a first TRP of the at least two TRPs in a first time domain part of the uplink control information, and the uplink control information is associated with a second TRP of the at least two TRPs in the remaining time domain part.

[0390] 26. The method of the dependent clause 21, wherein the uplink control information is associated with at least two TRPs means that,

[0391] the uplink control information is associated with a first TRP of the at least two TRPs in the first N2 time slots of the uplink control information, and the uplink control information is associated with a second TRP of the at least two TRPs in the next N2 time slots of the uplink control information.

[0392] 27. The method of the dependent item 26, wherein the remaining time slots of the uplink control information are associated with the first TRP and the second TRP, respectively, in units of N2 time slots.

[0393] 28. The method of the dependent item 26, wherein the number N2 is at least one of: 1, 2, 4, 8.

[0394] 29. The method of the dependent item 21, wherein the indication information is contained in RRC signaling, and the indicated parameters that are common for all PUCCH resources of a format.

[0395] 30. The method of the dependent item 29, wherein the PUCCH format refers to one of:

[0396] PUCCH format 0;

[0397] PUCCH format 1;

[0398] PUCCH format 2;

[0399] PUCCH format 3;

[0400] PUCCH format 4.

[0401] 31. The method of any one of the dependent items 21 to 30, wherein the TRP is equivalent to at least one of:

[0402] transmission configuration indication state;

[0403] spatial relation;

[0404] reference signal;

[0405] reference signal group;

[0406] SRS resource group;

[0407] spatial domain filter;

[0408] power control parameter; and

[0409] a group of time alignment (TA) related parameters.

[0410] 32. A terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of Embodiments 1 to 20.

[0411] 33. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of Embodiments 21 to 31.

[0412] 34. A communication system comprising a terminal device and a network device,

[0413] wherein the terminal device is configured to perform the method according to any one of Embodiments 1 to 20, and the network device is configured to perform the method according to any one of Embodiments 21 to 31.

Claims

1. An apparatus for transmitting uplink control information, wherein, The apparatus comprises: a memory; a receiver configured to receive indication information transmitted by a network device, the indication information acting on a PUCCH resource with an ID, and indicating that uplink control information associated with the PUCCH resource is related to at least two TRPs; and a transmitter coupled to the memory and configured to transmit the uplink control information using the at least two TRPs.

2. The apparatus of claim 1, wherein the at least two TRPs comprise a first TRP and a second TRP; the first TRP is related to a first N1 symbols of the uplink control information; and the second TRP is related to a second N1 symbols of the uplink control information.

3. The apparatus of claim 2, wherein remaining symbols of the uplink control information are respectively related to the first TRP and the second TRP in units of N1 symbols.

4. The apparatus of claim 1, wherein the at least two TRPs comprise a first TRP and a second TRP; the first TRP is related to a first time domain part of the uplink control information in a time slot associated with the uplink control information; and the second TRP is related to remaining time domain parts of the uplink control information.

5. The apparatus of claim 1, wherein the at least two TRPs comprise a first TRP and a second TRP; the first TRP is related to a first N2 time slots of the uplink control information; and the second TRP is related to a second N2 time slots of the uplink control information.

6. The apparatus of claim 5, wherein remaining time slots of the uplink control information are respectively related to the first TRP and the second TRP in units of N2 time slots.

7. The apparatus of claim 1, wherein the transmitter performs frequency hopping on transmission of the uplink control information according to the at least two TRPs.

8. The apparatus of claim 1, wherein the transmitter performs frequency hopping on transmission of the uplink control information according to at least one of a transmission opportunity, a repetition, and a time-frequency resource associated with a TRP of the at least two TRPs.

9. The apparatus of claim 7, wherein the frequency hopping is performed according to a time slot in which the uplink control information is located.

10. The apparatus of claim 7, wherein the frequency hopping is performed according to a time domain part of the uplink control information in a time slot in which the uplink control information is located.

11. The apparatus of claim 1, wherein the uplink control information is PUCCH repetition.

12. The apparatus of claim 1, wherein, The apparatus further comprises: a processor configured to determine a length of an orthogonal cover code of the uplink control information according to a time domain length of a time domain resource, a repetition, or a transmission opportunity associated with the uplink control information and related to a TRP of the at least two TRPs.

13. The apparatus of claim 1, wherein, The apparatus further comprises: a processor configured to generate a sequence corresponding to the uplink control information according to the at least two TRPs.

14. The apparatus of claim 1, wherein, The indication information is contained in RRC signaling, and parameters indicated by the RRC signaling are the same for all resources belonging to the same PUCCH format.

15. The apparatus of claim 1, wherein, The indication information is contained in RRC signaling.

16. The apparatus of claim 1, wherein, The at least two TRPs are equivalent to at least one of the following: Transmission configuration indication state; Spatial relation; Reference signal; Reference signal group; SRS resource group; Spatial domain filter; Power control parameter; and A set of parameters related to time alignment (TA).

17. The apparatus of claim 1, wherein, The format of the resource corresponding to the uplink control information is at least one of the following: PUCCH format 0; PUCCH format 1; PUCCH format 2; PUCCH format 3; PUCCH format 4.

18. An apparatus for indicating uplink control information transmission, wherein The apparatus comprises: a transmitter that transmits indication information to a terminal device, the indication information acting on a PUCCH resource with an ID, for indicating that the uplink control information associated with the PUCCH resource is related to at least two TRPs; and a receiver that receives uplink control information transmitted by the terminal device using the at least two TRPs.

19. The apparatus of claim 18, wherein, The at least two TRPs are equivalent to at least one of the following: Transmission configuration indication state; Spatial relation; Reference signal; Reference signal group; SRS resource group; Spatial domain filter; Power control parameter; and A set of parameters related to time alignment (TA). The indication information is contained in RRC signaling, and parameters indicated by the RRC signaling are the same for all resources belonging to the same PUCCH format. The indication information is contained in RRC signaling. The at least two TRPs are equivalent to at least one of the following: Transmission configuration indication state; Spatial relation; Reference signal; Reference signal group; SRS resource group; Spatial domain filter; Power control parameter; and A set of parameters related to time alignment (TA).

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