Method, device and user equipment for determining the number of PUCCH retransmissions

Abstract

The present invention provides a method, device and user equipment for determining the number of PUCCH retransmissions. The method comprises: receiving high-level signaling and / or DCI sent by a network side device in the absence of dedicated PUCCH resource configuration information; and determining the number of PUCCH retransmissions according to the high-level signaling and / or DCI. The present invention can determine the number of PUCCH retransmissions in the absence of dedicated PUCCH resource configuration information.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to a method, device and user equipment for determining the number of PUCCH retransmissions. Background Art

[0002] In the discussion of R17 coverage enhancement, PUCCH is needed to improve coverage. Among them, increasing the repetition number is one way to achieve it. Currently, the repetition number of PUCCH (Physical Uplink Control Channel) is configured by high-level signaling and must be configured through dedicated PUCCH resources.

[0003] When UE (User Equipment) sends PUCCH, it can be divided into the following two situations:

[0004] Case-1: The UE has no dedicated PUCCH resource configuration information (without dedicated PUCCH resource configuration) or is before being configured with dedicated PUCCH resource configuration information (before dedicated PUCCH resource configuration);

[0005] Case-2: The UE has dedicated PUCCH resource configuration information (dedicated PUCCH resource configuration).

[0006] In Case-1, the UE can obtain relevant configuration information of the PUCCH according to Table 1 in SIB1 (where SIB is System Information Block).

[0007] Table 1

[0008]

[0009] After the UE determines the row index, it can know a series of configuration information corresponding to the specific PUCCH according to Table 1, which specifically includes the PUCCH format type, the PUCCH resource starting symbol index, the number of PUCCH resource symbols, the PRB offset of the PUCCH resource frequency domain, and the set of initial cyclic shift indexes.

[0010] In R17, simulations have shown that the performance of PUCCH format 1 cannot meet the coverage requirements and needs to be enhanced. However, in Case-1, since the UE does not have dedicated PUCCH resource configuration information, it is impossible to determine the number of PUCCH retransmissions. Summary of the invention

[0011] The method, device and user equipment for determining the number of PUCCH retransmissions provided by the present invention can determine the number of PUCCH retransmissions without dedicated PUCCH resource configuration information.

[0012] In a first aspect, the present invention provides a method for determining the number of PUCCH retransmissions, the method comprising:

[0013] In the absence of dedicated PUCCH resource configuration information, receiving high-layer signaling and / or DCI sent by a network-side device;

[0014] The number of retransmissions of the PUCCH is determined according to the higher layer signaling and / or the DCI.

[0015] Optionally, the receiving high-layer signaling and / or DCI sent by the network side device includes: receiving a system information block SIB1 broadcasted by the network side device, wherein the SIB1 includes a correspondence between a row index value, PUCCH configuration information, and a number of retransmissions;

[0016] The determining the number of retransmissions of the PUCCH according to the high-level signaling and / or the DCI includes:

[0017] Determine the row index value to use;

[0018] The number of PUCCH retransmissions is determined according to the determined row index value and the corresponding relationship between the row index value, PUCCH configuration information, and the number of retransmissions.

[0019] Optionally, the SIB1 includes a direct correspondence between a row index value and a number of retransmissions;

[0020] Determining the number of PUCCH retransmissions based on the determined row index value and the correspondence between the row index value, PUCCH configuration information and the number of retransmissions includes: directly determining the number of PUCCH retransmissions based on the determined row index value and the direct correspondence between the row index value and the number of retransmissions.

[0021] Optionally, the PUCCH configuration information includes an initial cyclic shift index set, and the SIB1 includes a correspondence between each initial cyclic shift index and the number of retransmissions;

[0022] The determining the number of PUCCH retransmissions according to the determined row index value and the correspondence between the row index value, PUCCH configuration information, and the number of retransmissions includes:

[0023] Determine an initial cyclic shift index according to the determined row index value and a correspondence between the row index value and an initial cyclic shift index set;

[0024] The number of PUCCH retransmissions is determined according to the determined initial cyclic shift index and the corresponding relationship between each initial cyclic shift index and the number of retransmissions.

[0025] Optionally, the determining of the row index value used includes:

[0026] The row index value is determined according to the sequence number of the first CCE of the PDCCH and the PUCCH resource indication information in the DCI.

[0027] Optionally, the receiving high-layer signaling and / or DCI sent by the network side device includes: receiving a random access response in an initial random access process, or obtaining the number of retransmissions of Msg1 or Msg3 in the initial random access process or the most recent random access process, wherein the random access response carries the number of retransmissions;

[0028] Determining the number of PUCCH retransmissions according to the high-level signaling and / or DCI includes: using the number of retransmissions carried in the random access response or the number of retransmissions of Msg1 or Msg3 in the initial random access process or the most recent random access process as the number of PUCCH retransmissions.

[0029] In a second aspect, the present invention provides a device for determining the number of PUCCH retransmissions, the device comprising:

[0030] A receiving unit, configured to receive high-layer signaling and / or DCI sent by a network side device in the absence of dedicated PUCCH resource configuration information;

[0031] A determining unit is used to determine the number of retransmissions of the PUCCH according to the high-layer signaling and / or the DCI.

[0032] Optionally, the receiving unit is used to receive a system information block SIB1 broadcast by a network side device, wherein the SIB1 includes a correspondence between a row index value, PUCCH configuration information, and a number of retransmissions;

[0033] The determining unit comprises:

[0034] A first determination module, used to determine the row index value to be used;

[0035] The second determination module is used to determine the number of PUCCH retransmissions according to the determined row index value and the corresponding relationship between the row index value, PUCCH configuration information and the number of retransmissions.

[0036] Optionally, the SIB1 includes a direct correspondence between a row index value and a number of retransmissions;

[0037] The second determination module is used to directly determine the number of PUCCH retransmissions according to the determined row index value and the direct correspondence between the row index value and the number of retransmissions.

[0038] Optionally, the PUCCH configuration information includes an initial cyclic shift index set, and the SIB1 includes a correspondence between each initial cyclic shift index and the number of retransmissions;

[0039] The second determining module comprises:

[0040] A first determination submodule, configured to determine an initial cyclic shift index according to the determined row index value and a correspondence between the row index value and an initial cyclic shift index set;

[0041] The second determining submodule is used to determine the number of PUCCH retransmissions according to the determined initial cyclic shift index and the corresponding relationship between each initial cyclic shift index and the number of retransmissions.

[0042] Optionally, the first determination module is used to determine the row index value according to the sequence number of the first CCE of the PDCCH and the PUCCH resource indication information in the DCI.

[0043] Optionally, the receiving unit is used to receive a random access response in an initial random access process, or obtain the number of retransmissions of Msg1 or Msg3 in the initial random access process or the most recent random access process, wherein the random access response carries the number of retransmissions;

[0044] The determining unit is configured to use the number of retransmissions carried in the random access response or the number of retransmissions of Msg1 or Msg3 in the initial random access process or the most recent random access process as the number of PUCCH retransmissions.

[0045] In a third aspect, the present invention provides a user equipment, the user equipment comprising:

[0046] at least one processor; and

[0047] a memory communicatively connected to the at least one processor; wherein,

[0048] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned method for determining the number of PUCCH retransmissions.

[0049] In a fourth aspect, the present invention provides a chip, comprising:

[0050] at least one processor; and

[0051] a memory communicatively connected to the at least one processor; wherein,

[0052] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned method for determining the number of PUCCH retransmissions.

[0053] In a fifth aspect, the present invention provides a chip module, wherein the chip module comprises the above-mentioned chip.

[0054] In a sixth aspect, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method for determining the number of PUCCH retransmissions is implemented.

[0055] The method, device and user equipment for determining the number of PUCCH retransmissions provided in the embodiments of the present invention can determine the number of PUCCH retransmissions through high-level signaling and / or DCI sent by network-side equipment in the absence of dedicated PUCCH resource configuration information, thereby ensuring the realization of enhanced coverage capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a flow chart of a method for determining the number of PUCCH retransmissions according to an embodiment of the present invention;

[0057] Figure 2 A schematic diagram of the structure of a device for determining the number of PUCCH retransmissions according to an embodiment of the present invention;

[0058] Figure 3 A schematic diagram of the structure of a device for determining the number of PUCCH retransmissions according to another embodiment of the present invention;

[0059] Figure 4 The figure is a schematic diagram of the structure of a device for determining the number of PUCCH retransmissions according to another embodiment of the present invention. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] An embodiment of the present invention provides a method for determining the number of PUCCH retransmissions, the method being applied to a user equipment, such as Figure 1 As shown, the method includes:

[0062] S11. In the absence of dedicated PUCCH resource configuration information, receive high-level signaling and / or DCI (Downlink Control Information) sent by a network-side device. The high-level signaling may be RRC (Radio Resource Control) signaling or SIB.

[0063] S12. Determine the number of retransmissions of the PUCCH according to the high-layer signaling and / or DCI.

[0064] The method for determining the number of PUCCH retransmissions provided in an embodiment of the present invention determines the number of PUCCH retransmissions through high-layer signaling and / or DCI sent by a network-side device in the absence of dedicated PUCCH resource configuration information, thereby ensuring the realization of enhanced coverage capability.

[0065] The method for determining the number of PUCCH retransmissions of the present invention is described in detail below in conjunction with specific embodiments.

[0066] Solution 1:

[0067] The UE receives the system information block SIB1 broadcasted by the network side device, and the SIB1 includes a direct correspondence between the row index value and the number of retransmissions, as shown in Table 2. Compared with Table 1, Table 2 adds a column of the number of retransmissions, and the corresponding number of retransmissions can be found according to the row index value.

[0068] Table 2

[0069]

[0070] The UE determines the row index value to be used according to the sequence number of the first CCE (Control Channel Element) of the PDCCH (Physical Downlink Control Channel) and the PUCCH resource indication information in the DCI;

[0071] Then, the UE searches and determines the number of PUCCH retransmissions in the direct correspondence between the row index value and the number of retransmissions shown in Table 2 according to the determined row index value.

[0072] As an example, a column of retransmission number configuration may be added for both PUCCH format 0 and format 1. Optionally, for PUCCH format 0 associated row indexes 0, 1, and 2, the corresponding retransmission number may be fixed to 1.

[0073] As another example, generally speaking, the performance of PUCCH format 1 cannot meet the coverage requirement and needs to be enhanced, so Table 2 may only add a column of retransmission number configuration for each associated row index (index number from 3 to 15) corresponding to PUCCH format-1.

[0074] Option 2:

[0075] The UE receives the system information block SIB1 broadcast by the network side device, as shown in Table 1, the SIB1 includes the correspondence between the row index value and the PUCCH configuration information and the number of retransmissions, and the PUCCH configuration information includes the initial cyclic shift index set. In addition, the SIB1 also includes the correspondence between each initial cyclic shift index and the number of retransmissions. Among them, each initial cyclic shift index corresponds to a number of retransmissions. After the terminal determines the initial cyclic shift index used by the PUCCH, it can know the number of retransmissions of the PUCCH. Optionally, the correspondence can be determined in a predefined manner or in a manner configured by high-level signaling. Among them, the high-level signaling can be RRC signaling or MAC-CE (Medium-Access-Control Control Element, media access control control unit).

[0076] An example is shown in Table 3.

[0077] Table 3

[0078] Initial circular shift index Retransmission times 0 1 3 2 4 4 6 8 8 16 9 32

[0079] Then, the UE determines the initial cyclic shift index according to the determined row index value and the correspondence between the row index value and the initial cyclic shift index set, as follows:

[0080] like According to the formula r PUCCH mod N CS Determine the initial cyclic shift index; if According to the formula (r PUCCH -8)mod N CS determining an initial cyclic shift index;

[0081] Among them, r PUCCH is the row index value, N CS is the number of elements in the initial circular shift index set, Represents r PUCCH Divide by 8 and round down, r PUCCH mod N CS Represents r PUCCH Divide by N CS The remainder, (r PUCCH -8)mod N CS indicates (r PUCCH -8) divided by N CS The remainder of .

[0082] Finally, the UE searches and determines the number of PUCCH retransmissions in the corresponding relationship between each initial cyclic shift index and the number of retransmissions shown in Table 3 according to the determined initial cyclic shift index.

[0083] Option 3:

[0084] During the initial random access process, the UE receives a RAR (Random Access Response) sent by a network side device, wherein the random access response carries retransmission number indication information, and uses the retransmission number carried in the random access response as the PUCCH retransmission number.

[0085] Option 4:

[0086] The UE uses the number of retransmissions of Msg1 or Msg3 as the number of PUCCH retransmissions, where Msg1 or Msg3 may belong to an initial random access procedure, or Msg1 or Msg3 may belong to a most recent random access procedure.

[0087] Option 5:

[0088] The network-side device indicates the number of PUCCH retransmissions through MAC-CE.

[0089] The method for determining the number of PUCCH retransmissions provided in an embodiment of the present invention determines the number of PUCCH retransmissions through the system information block SIB1 or random access response sent by the network side device, or according to the number of retransmissions of Msg1 or Msg3, in the absence of dedicated PUCCH resource configuration information, thereby ensuring the realization of enhanced coverage capability.

[0090] The embodiment of the present invention further provides a device for determining the number of PUCCH retransmissions, the device being located in a user equipment, such as Figure 2 As shown, the device comprises:

[0091] The receiving unit 11 is used to receive high-layer signaling and / or DCI sent by the network side device in the absence of dedicated PUCCH resource configuration information;

[0092] The determining unit 12 is configured to determine the number of retransmissions of the PUCCH according to the higher layer signaling and / or the DCI.

[0093] The device for determining the number of PUCCH retransmissions provided in the embodiment of the present invention determines the number of PUCCH retransmissions through high-layer signaling and / or DCI sent by a network-side device in the absence of dedicated PUCCH resource configuration information, thereby ensuring the realization of enhanced coverage capability.

[0094] Optionally, the receiving unit 11 is configured to receive a system information block SIB1 broadcasted by a network side device, wherein the SIB1 includes a correspondence between a row index value, PUCCH configuration information, and a number of retransmissions;

[0095] like Figure 3 As shown, the determining unit 12 includes:

[0096] A first determination module 121, used to determine the row index value to be used;

[0097] The second determining module 122 is configured to determine the number of PUCCH retransmissions according to the determined row index value and the correspondence between the row index value, PUCCH configuration information, and the number of retransmissions.

[0098] Optionally, the SIB1 includes a direct correspondence between a row index value and a number of retransmissions;

[0099] The second determination module 122 is configured to directly determine the number of PUCCH retransmissions according to the determined row index value and the direct correspondence between the row index value and the number of retransmissions.

[0100] Optionally, the PUCCH configuration information includes an initial cyclic shift index set, and the SIB1 includes a correspondence between each initial cyclic shift index and the number of retransmissions;

[0101] like Figure 4 As shown, the second determining module 122 includes:

[0102] A first determination submodule 1221, configured to determine an initial cyclic shift index according to the determined row index value and a correspondence between the row index value and an initial cyclic shift index set;

[0103] The second determining submodule 1222 is configured to determine the number of PUCCH retransmissions according to the determined initial cyclic shift index and the correspondence between each initial cyclic shift index and the number of retransmissions.

[0104] Optionally, the first determination module 121 is used to determine a row index value according to the sequence number of the first CCE of the PDCCH and PUCCH resource indication information in the DCI.

[0105] Optionally, the receiving unit 11 is used to receive a random access response in an initial random access process, or obtain the number of retransmissions of Msg1 or Msg3 in the initial random access process or the most recent random access process, wherein the random access response carries the number of retransmissions;

[0106] The determining unit 12 is configured to use the number of retransmissions carried in the random access response or the number of retransmissions of Msg1 or Msg3 in the initial random access process or the most recent random access process as the number of PUCCH retransmissions.

[0107] The device of this embodiment can be used to execute the technical solution of the above method embodiment. Its implementation principle and technical effect are similar and will not be repeated here.

[0108] An embodiment of the present invention further provides a user equipment, the user equipment comprising:

[0109] at least one processor; and

[0110] a memory communicatively connected to the at least one processor; wherein,

[0111] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned method for determining the number of PUCCH retransmissions.

[0112] An embodiment of the present invention further provides a chip, comprising:

[0113] at least one processor; and

[0114] a memory communicatively connected to the at least one processor; wherein,

[0115] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned method for determining the number of PUCCH retransmissions.

[0116] An embodiment of the present invention further provides a chip module, which includes the above chip.

[0117] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method for determining the number of PUCCH retransmissions is implemented.

[0118] Those skilled in the art can understand that all or part of the processes in the above method embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes in the above method embodiments. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0119] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for determining the number of PUCCH retransmissions, characterized in that: The method comprises: In the absence of dedicated PUCCH resource configuration information, receiving high-layer signaling and / or DCI sent by a network-side device; Determine the number of retransmissions of the PUCCH according to the high-level signaling and / or the DCI; The receiving of high-layer signaling and / or DCI sent by the network side device includes: receiving a system information block SIB1 broadcasted by the network side device, wherein the SIB1 includes a correspondence between a row index value, PUCCH configuration information, and a number of retransmissions, wherein the PUCCH configuration information includes an initial cyclic shift index set, and the SIB1 also includes a correspondence between each initial cyclic shift index and a number of retransmissions; The method of determining the number of PUCCH retransmissions according to the high-level signaling and / or DCI includes: determining the row index value used, determining the initial cyclic shift index according to the determined row index value and the correspondence between the row index value and the initial cyclic shift index set, and determining the number of PUCCH retransmissions according to the determined initial cyclic shift index and the correspondence between each initial cyclic shift index and the number of retransmissions.

2. The method according to claim 1, characterized in that The determining of the row index value used includes: The row index value is determined according to the sequence number of the first CCE of the PDCCH and the PUCCH resource indication information in the DCI.

3. A device for determining the number of PUCCH retransmissions, characterized in that: The device comprises: A receiving unit, configured to receive high-layer signaling and / or DCI sent by a network side device in the absence of dedicated PUCCH resource configuration information; A determining unit, configured to determine the number of retransmissions of the PUCCH according to the high-level signaling and / or the DCI; The receiving unit is configured to receive a system information block SIB1 broadcasted by a network side device, wherein the SIB1 includes a correspondence between a row index value, PUCCH configuration information, and a number of retransmissions, wherein the PUCCH configuration information includes an initial cyclic shift index set, and the SIB1 also includes a correspondence between each initial cyclic shift index and a number of retransmissions; The determination unit includes: a first determination module, used to determine the row index value used; a second determination module, used to determine the number of PUCCH retransmissions based on the determined row index value and the correspondence between the row index value, PUCCH configuration information and the number of retransmissions; the second determination module includes: a first determination submodule, used to determine the initial cyclic shift index based on the determined row index value and the correspondence between the row index value and the initial cyclic shift index set; a second determination submodule, used to determine the number of PUCCH retransmissions based on the determined initial cyclic shift index and the correspondence between each initial cyclic shift index and the number of retransmissions.

4. The device according to claim 3, characterized in that The first determination module is used to determine the row index value according to the sequence number of the first CCE of the PDCCH and the PUCCH resource indication information in the DCI.

5. A user equipment, characterized in that: The user equipment comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 2.

6. A chip, characterized in that: The chip comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 2.

7. A chip module, characterized in that: The chip module includes the chip according to claim 6.

8. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method according to any one of claims 1 to 2 is implemented.

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