Resource element group bundle determination, mapping method and device

Abstract

The present disclosure relates to a method and device for determining and mapping resource element group bundles, and the resource element group bundle determination method includes: determining a mapping method of a resource element group bundle REG bundle to REG according to the distribution of a long-term evolution cell-specific reference signal LTE CRS in a control resource set CORESET; determining a REG bundle in the CORESET according to the mapping method. According to the present disclosure, the terminal determines a mapping method of a REG bundle to a REG according to the distribution of LTE CRS in the CORESET, which is beneficial to avoiding a situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different. Then, the REG bundle is determined in the CORESET according to the mapping method, and channel estimation is performed based on the REG bundle. Channel estimation can be performed when the number of REs corresponding to NR PDCCH DMRS on each REG in the REG bundle is the same, which is beneficial to ensuring the accuracy of the channel estimation.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a resource element group bundle determination method, a resource element group bundle mapping method, a resource element group bundle determination device, a resource element group bundle mapping device, a communication device, and a computer-readable storage medium. Background Art

[0002] Currently, the LTE (Long Term Evolution) system and the NR (New Radio) system can coexist in the same spectrum. The LTE system needs to continuously send CRS (Cell-specific Reference Signal), which will cause strong interference to the NR system.

[0003] In the related technology, when the terminal detects NR PDCCH (Physical Downlink Control Channel), it needs to perform channel assessment based on the granularity of resource element group bundle REGbundle. The current mapping method of REGbundle to REG (Resource Element Group) is to map REG bundle to REG in the order of time domain first and then frequency domain.

[0004] However, due to the existence of LTE CRS, the terminal in the related art cannot transmit NRPDCCH DMRS (Demodulatin Reference Signal) on the RE (Resource Element) where LTE CRS exists. This may result in different numbers of REs corresponding to NRPDCCH DMRS for channel estimation on different REGs in one REGbundle, thereby affecting the accuracy of channel estimation. Summary of the invention

[0005] In view of this, the embodiments of the present disclosure propose a resource element group bundle determination method, a resource element group bundle mapping method, a resource element group bundle determination device, a resource element group bundle mapping device, a communication device and a computer-readable storage medium to solve the technical problems in the related art.

[0006] According to the first aspect of an embodiment of the present disclosure, a method for determining a resource element group bundle is proposed, which is executed by a terminal. The method includes: determining a mapping method of a resource element group bundle REG bundle to REG according to the distribution of a long-term evolution cell-specific reference signal LTE CRS in a control resource set CORESET; and determining a REG bundle in the CORESET according to the mapping method.

[0007] According to the second aspect of an embodiment of the present disclosure, a resource element group bundle mapping method is proposed, which is executed by a network side device. The method includes: determining a mapping method of a resource element group bundle REG bundle to REG according to the distribution of a long-term evolution cell-specific reference signal LTE CRS in a control resource set CORESET; and mapping the REG bundle in the CORESET according to the mapping method.

[0008] According to the third aspect of an embodiment of the present disclosure, a device for determining a resource element group bundle is proposed, comprising: a method determination module, configured to determine a mapping method of a resource element group bundle REG bundle to REG according to a distribution of a long term evolution cell-specific reference signal LTE CRS in a control resource set CORESET; and a REG bundle determination module, configured to determine a REG bundle in the CORESET according to the mapping method.

[0009] According to the fourth aspect of an embodiment of the present disclosure, a resource element group bundle mapping device is proposed, which is executed by a network side device, and the device includes: a method determination module, configured to determine the mapping method of the resource element group bundle REG bundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET; a REGbundle mapping module, configured to map the REG bundle in the CORESET according to the mapping method.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: a processor; and a memory for storing a computer program; wherein, when the computer program is executed by the processor, the above-mentioned resource element group bundling determination method is implemented.

[0011] According to a sixth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the above-mentioned resource element group bundle mapping method is implemented.

[0012] According to a seventh aspect of an embodiment of the present disclosure, a computer-readable storage medium is proposed for storing a computer program, characterized in that when the computer program is executed by a processor, the steps in the above-mentioned resource element group bundling determination method are implemented.

[0013] According to an eighth aspect of an embodiment of the present disclosure, a computer-readable storage medium is proposed for storing a computer program, characterized in that when the computer program is executed by a processor, the steps in the above-mentioned resource element group bundle mapping method are implemented.

[0014] According to the embodiment of the present disclosure, the terminal determines the mapping method of REG bundle to REG according to the distribution of LTE CRS in CORESET, which is conducive to avoiding the situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in REG bundle is different. Then, according to the mapping method, REG bundle is determined in the CORESET, and channel estimation is performed according to the REG bundle. Channel estimation can be performed when the number of REs corresponding to NR PDCCH DMRS on each REG in the REG bundle is the same, which is conducive to ensuring the accuracy of channel estimation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic flowchart of a method for determining a resource element group bundle according to an embodiment of the present disclosure.

[0017] Figure 2 It is a schematic diagram of an LTE CRS according to an embodiment of the present disclosure.

[0018] Figure 3 This is a schematic diagram showing a conflict between NR PDCCH DMRS and LTE CRS according to an embodiment of the present disclosure.

[0019] Figure 4 It is a schematic diagram of mapping from REG bundle to REG according to an embodiment of the present disclosure.

[0020] Figure 5 It is a schematic flowchart of another resource element group bundling determination method according to an embodiment of the present disclosure.

[0021] Figure 6 It is a schematic flowchart of another resource element group bundling determination method according to an embodiment of the present disclosure.

[0022] Figure 7 It is a schematic flowchart of another resource element group bundling determination method according to an embodiment of the present disclosure.

[0023] Figure 8 It is a schematic diagram of another mapping of REG bundle to REG according to an embodiment of the present disclosure.

[0024] Fig. 9 It is a schematic flowchart of another resource element group bundling determination method according to an embodiment of the present disclosure.

[0025] Fig.10 It is a schematic diagram of another mapping of REG bundle to REG according to an embodiment of the present disclosure.

[0026] Fig.11 It is a schematic flowchart of a resource element group bundle mapping method according to an embodiment of the present disclosure.

[0027] Fig.12 It is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure.

[0028] Fig.13 It is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure.

[0029] Fig.14 It is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure.

[0030] Fig.15 It is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure.

[0031] Fig.16 It is a schematic block diagram of a device for determining a resource element group bundle according to an embodiment of the present disclosure.

[0032] Fig.17 It is a schematic block diagram of a resource element group bundle mapping device according to an embodiment of the present disclosure.

[0033] Fig.18 It is a schematic block diagram of an apparatus for resource element group bundle mapping according to an embodiment of the present disclosure.

[0034] Fig.19 It is a schematic block diagram of an apparatus for determining resource element group bundles according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0036] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "an" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0037] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0038] For the purpose of brevity and ease of understanding, the terms used herein to characterize size relationships are "greater than" or "less than", "higher than" or "lower than". However, those skilled in the art can understand that the term "greater than" also covers the meaning of "greater than or equal to", and "less than" also covers the meaning of "less than or equal to"; the term "higher than" covers the meaning of "higher than or equal to", and "lower than" also covers the meaning of "lower than or equal to".

[0039] Figure 1 It is a schematic flow chart of a method for determining a resource element group bundle according to an embodiment of the present disclosure. The resource element group bundle method shown in this embodiment can be executed by a terminal, and the terminal can communicate with a network side device, and the terminal includes but is not limited to a mobile phone, a tablet computer, a wearable device, a sensor, an Internet of Things device and other communication devices, and the network side device includes but is not limited to a network side device in a 4G, 5G, 6G and other communication systems, such as a base station, a core network, etc.

[0040] like Figure 1 As shown, the resource element group bundle determination method may include the following steps:

[0041] In step S101, a mapping method of resource element group bundle REGbundle to REG is determined according to the distribution of long term evolution cell-specific reference signals LTE CRS in the control resource set CORESET;

[0042] In step S102, a REG bundle is determined in the CORESET according to the mapping method.

[0043] Figure 2 It is a schematic diagram of an LTE CRS according to an embodiment of the present disclosure.

[0044] In one embodiment, taking the LTE cell identifier (Cell ID) equal to 0, the LTE CRS supports 4 ports as an example, namely antenna port 0, antenna port 1, antenna port 2 and antenna port 3. The LTE CRS corresponding to each antenna port occupies different resources respectively, and the resources occupied by the LTE CRS corresponding to the four antenna ports are superimposed together as the first resource.

[0045] like Figure 2 As shown in FIG. 1 , in one RB (Resource Block), there are 14 symbols (e.g., orthogonal frequency division multiplexing OFDM symbols) in the time domain and 12 REs (Resource Element) in the frequency domain. For example, in one symbol, the REs are numbered from bottom to top as RE#0 to RE#11, as shown in FIG. Figure 2 As shown, the resources occupied by the LTE CRS include REs numbered RE#0, RE#3, RE#6, and RE#9 on the 1st, 2nd, 5th, 8th, 9th, and 12th symbols.

[0046] It should be noted that the LTE CRS can be sent by the LTE network side device, but the NR network side device can also determine the resources occupied by the LTE CRS, for example, by communicating with the LTE network side device, for example, it can also be determined based on a protocol agreement. In addition, the terminal can also determine the resources occupied by the LTE CRS, for example, the terminal can determine the resources occupied by the LTE CRS based on a protocol agreement.

[0047] Figure 3 FIG. 1 is a schematic diagram showing a conflict between an NR PDCCH DMRS and an LTE CRS according to an embodiment of the present disclosure. Figure 3 As shown, in the resource element group REG (Resource Element Group) in NR, the pattern of NR PDCCH DMRS is that NR PDCCH DMRS is distributed in RE#1, RE#5 and RE#9.

[0048] For example, if the duration of CORESET is 3 time domain symbols, such as the first 3 symbols in the RB, then when the NR PDCCH DMRS is located in the CORESET, the NR PDCCH DMRS conflicts with the LTE CRS on RE#9 of the first 2 symbols in the RB. Only LTE CRS is sent on the conflicting RE, and NR PDCCH DMRS is not sent.

[0049] Figure 4 It is a schematic diagram of mapping from REG bundle to REG according to an embodiment of the present disclosure.

[0050] exist Figure 3 In the case shown, in the related art, mapping of REG bundle to REG is performed in the order of time domain first and frequency domain second, that is, REG bundle is first mapped to REG in the frequency domain, and then mapped to REG bundle in the time domain.

[0051] like Figure 4 As shown, for example, the size of the REG bundle is 3, that is, 3 REGs are mapped. When mapping the REG bundle to the REG in the order of time domain first and frequency domain later, it will start mapping to the REG from the first symbol of the CORESET, and then continue to map to the REG along the time domain until the last symbol of the CORESET. Since the CORESET duration is 3 symbols, a REG bundle can be completely mapped in one RB. For example, the REGs corresponding to the first 3 symbols in RB#n are mapped to REGbundle#n. Similarly, the REGs corresponding to the first 3 symbols in RB#n+1 are mapped to REG bundle#n+1, and the REGs corresponding to the first 3 symbols in RB#n+2 are mapped to REG bundle#n+2. REG bundle#n+1 and REG bundle#n+2 are not shown in the figure.

[0052] Of course, the above embodiment is only for the case where the size of the REG bundle is 3. If the size of the REG bundle is 6, then when mapping the REG bundle to the REG in the order of time domain first and frequency domain second, it will start from the first symbol of the CORESET to the REG, and then continue to map to the REG along the time domain until the last symbol of the CORESET. Since the CORESETduration is 3 symbols, a REG bundle cannot be fully mapped in one RB. Then the time domain can be considered later, that is, continue to map the REG bundle on the first 3 symbols of the next RB, so that a REG bundle can be fully mapped in 2 RBs. For example, Figure 4 In the illustrated embodiment, one REG bundle is mapped onto the first three symbols of two RBs, RB#n and RB#n+1.

[0053] Based on the above embodiments, it can be known that no matter how large the REG bundle is, after mapping the REG bundle to the REG in the order of time domain first and frequency domain later, the number of REs corresponding to the NR PDCCH DMRS in the first two symbols in the REG bundle is different from the number of REs corresponding to the NR PDCCH DMRS in the third symbol in the REG bundle, resulting in different numbers of REs corresponding to the NR PDCCH DMRS on different REGs in the REG bundle, which will reduce the accuracy of channel estimation based on the REG bundle.

[0054] In one embodiment, the mapping method includes at least one of the following:

[0055] Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later;

[0056] Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

[0057] In one embodiment, the distribution of the LTE CRS includes at least one of the following:

[0058] LTE CRS are distributed on all time domain symbols in the CORESET;

[0059] No LTE CRS is distributed on all time domain symbols in the CORESET;

[0060] In the CORESET, LTE CRS is distributed on some time domain symbols (LTE CRS is not distributed on another part of time domain symbols).

[0061] In one embodiment, based on the distribution of LTE CRS, it can be determined whether the existing mapping method (such as method one) for mapping REG bundle to REG will result in different numbers of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle. If this situation does not occur, method one can be used. If this situation occurs, mapping can be changed to method two.

[0062] The relationship between the distribution of LTE CRS and whether there will be a situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different can be predetermined. For example, when LTE CRS is distributed on all time domain symbols in the CORESET, or when LTE CRS is not distributed on all time domain symbols in the CORESET, there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different (that is, the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same); when LTE CRS is distributed on some time domain symbols in the CORESET, there will be a situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0063] Therefore, the terminal can determine to map according to the second method according to the distribution of LTE CRS in CORESET when the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different; and determine to map according to the first method according to the distribution of LTE CRS in CORESET when the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0064] Therefore, according to the embodiments of the present disclosure, the terminal can determine the mapping method of REG bundle to REG according to the distribution of LTE CRS in CORESET (for example, the distribution of LTE CRS RE), which is conducive to avoiding the situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in REG bundle is different. Then, according to the mapping method, the REG bundle is determined in the CORESET, and channel estimation is performed according to the REG bundle. Channel estimation can be performed when the number of REs corresponding to NR PDCCHDMRS on each REG in the REG bundle is the same, which is conducive to ensuring the accuracy of channel estimation.

[0065] The above embodiments mainly describe the situation where LTE CRS conflicts with NRPDCCH DMRS. LTE CRS and NRPDCCH may also conflict. In the case where LTE CRS conflicts with NRPDCCH, NRPDCCH may be punctured according to the RE corresponding to LTE CRS, or NR PDCCH may be rate matched (RM) according to the RE corresponding to LTE CRS.

[0066] Figure 5FIG. 1 is a schematic flow chart of another method for determining resource element group bundles according to an embodiment of the present disclosure. Figure 5 As shown, the mapping method of determining the resource element group bundle REGbundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0067] In step S501, when LTE CRSs are distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

[0068] In one embodiment, when LTE CRS is distributed on all time domain symbols in the CORESET, there is LTE CRS on each REG, and the number of REs corresponding to NRPDCCH DMRS that conflicts with LTE CRS on each REG is the same, which is equivalent to reducing the same number of REs used to transmit NRPDCCH DMRS on each REG, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is still the same, that is, there will be no situation where the number of REs corresponding to NRPDCCH DMRS on different REGs in the REGbundle is different.

[0069] Therefore, the mapping method in the relevant technology can be used, that is, method one, and the REGbundle is mapped to the REG in the order of time domain first and frequency domain later. On the basis of ensuring that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, the adjustment to the existing protocol can be reduced.

[0070] Figure 6 FIG. 1 is a schematic flow chart of another method for determining resource element group bundles according to an embodiment of the present disclosure. Figure 6 As shown, the mapping method of determining the resource element group bundle REGbundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0071] In step S601, when no LTE CRS is distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

[0072] In one embodiment, when LTE CRS is not distributed on all time domain symbols in the CORESET, there is no LTE CRS on each REG, and the number of REs corresponding to the original NR PDCCH DMRS on each REG is the same, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is also the same, so there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0073] Therefore, the mapping method in the relevant technology can be used, that is, method one, and the REG bundle is mapped to the REG in the order of time domain first and frequency domain later. On the basis of ensuring that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, the adjustment to the existing protocol can be reduced.

[0074] Figure 7 FIG. 1 is a schematic flow chart of another method for determining resource element group bundles according to an embodiment of the present disclosure. Figure 7 As shown, the mapping method of determining the resource element group bundle REG bundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0075] In step S701, when LTE CRS is distributed on some time domain symbols in the CORESET, it is determined that the mapping method includes the second method.

[0076] In one embodiment, when LTE CRS is distributed on some time domain symbols in the CORESET and LTE CRS is not distributed on other time domain symbols, then on the REG corresponding to the time domain symbol on which LTE CRS is distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is reduced, while on the REG corresponding to the time domain symbol on which LTE CRS is not distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is not reduced, so that in the REG bundle, the number of REs corresponding to NR PDCCH DMRS on the REG corresponding to the time domain symbol on which LTE CRS is distributed and the number of REs corresponding to the time domain symbol on which LTE CRS is not distributed are different, that is, the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle will be different.

[0077] Therefore, method 2 can be adopted to map REG bundle to REG in the order of frequency domain first and then time domain to ensure that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, thereby ensuring a good channel estimation effect.

[0078] Figure 8 It is a schematic diagram of another mapping of REG bundle to REG according to an embodiment of the present disclosure.

[0079] In one embodiment, when LTE CRS is distributed on some time domain symbols in the CORESET, for example Figure 3 Taking the illustrated embodiment as an example, LTE CRS is distributed on the first two symbols of CORESET, and LTE CRS is not distributed on the third symbol of CORESET, then the mapping of REG bundle to REG can be performed in the order of frequency domain first and then time domain.

[0080] like Figure 8 As shown, for example, the size of the REG bundle is 3, that is, one REG bundle maps 3 REGs, and CORESET corresponds to 3 RBs in the frequency domain.

[0081] Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain. It can start from the first symbol of RB#n and map REG bundle to REG along the frequency domain. Then REG bundle#n can be mapped to the REG corresponding to the first symbol of RB#n, the REG corresponding to the first symbol of RB#n+1, and the REG corresponding to the first symbol of RB#n+2.

[0082] By analogy, REG bundle#n+1 can be mapped to the REG corresponding to the second symbol of RB#n, the REG corresponding to the second symbol of RB#n+1, and the REG corresponding to the second symbol of RB#n+2. REG bundle#n+2 can be mapped to the REG corresponding to the third symbol of RB#n, the REG corresponding to the third symbol of RB#n+1, and the REG corresponding to the third symbol of RB#n+2. Figure 8 Winning bid.

[0083] It can be seen that when LTE CRS is distributed on some time domain symbols in CORESET, the mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain, for example Figure 8As shown, a REG bundle contains 3 REGs, and the number of REs corresponding to the NR PDCCH DMRS on each REG in the REG bundle is the same, thereby ensuring a good channel estimation effect.

[0084] Fig. 9 FIG. 1 is a schematic flow chart of another method for determining resource element group bundles according to an embodiment of the present disclosure. Fig. 9 As shown, the mapping method of determining the resource element group bundle REG bundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0085] In step S901, when LTE CRS is distributed on some time domain symbols in the CORESET, a first part of time domain symbols on which LTE CRS is distributed and a second part of time domain symbols on which LTE CRS is not distributed are determined;

[0086] In step S902, a first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET and a second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET are determined;

[0087] In step S903, it is determined in the first sub-CORESET that the mapping method includes the method one, and it is determined in the second sub-CORESET that the mapping method includes the method one.

[0088] In one embodiment, when LTE CRS is distributed on some time domain symbols in the CORESET and LTE CRS is not distributed on other time domain symbols, then on the REG corresponding to the time domain symbol on which LTE CRS is distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is reduced, while on the REG corresponding to the time domain symbol on which LTE CRS is not distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is not reduced, so that in the REG bundle, the number of REs corresponding to NR PDCCH DMRS on the REG corresponding to the time domain symbol on which LTE CRS is distributed and the number of REs corresponding to the time domain symbol on which LTE CRS is not distributed are different, that is, the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle will be different.

[0089] In this case, in addition to using method 2 for mapping, you can also use method 1 for mapping, but you need to perform some operations on CORESET before mapping.

[0090] In one embodiment, when LTE CRS is distributed on part of the time domain symbols in the CORESET, a first part of time domain symbols on which LTE CRS is distributed and a second part of time domain symbols on which LTE CRS is not distributed may be determined.

[0091] Then, the first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET and the second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET are determined. This is equivalent to dividing the resources corresponding to the time domain symbols with LTE CRS distributed in the original CORESET into one sub-CORESET, and dividing the resources corresponding to the time domain symbols without LTE CRS distributed in the original CORESET into another sub-CORESET.

[0092] Finally, in the first sub-CORESET, it is determined that the mapping method includes the method one, and in the second sub-CORESET, it is determined that the mapping method includes the method one.

[0093] For the first sub-CORESET, since LTE CRS is distributed on all time domain symbols in the first sub-CORESET, there is LTE CRS on each REG, and the number of REs corresponding to the NR PDCCH DMRS that conflicts with the LTE CRS on each REG is the same, which is equivalent to reducing the same number of REs used to transmit NR PDCCH DMRS on each REG, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is still the same. Therefore, in the first sub-CORESET, there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0094] For the second sub-CORESET, since there is no LTE CRS distributed on all time domain symbols in the second sub-CORESET, there is no LTE CRS on each REG, and the number of REs corresponding to the original NR PDCCH DMRS on each REG is the same, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is also the same. Therefore, in the second sub-CORESET, there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0095] Therefore, for the first sub-CORESET, method 1 can be used to map REGbundle to REG in the order of time domain first and frequency domain second; for the second sub-CORESET, method 1 can also be used to map REG bundle to REG in the order of time domain first and frequency domain second. On the basis of ensuring that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, the adjustment of the existing protocol can be reduced.

[0096] Fig.10 It is a schematic diagram of another mapping of REG bundle to REG according to an embodiment of the present disclosure.

[0097] In one embodiment, when the LTE CRS is distributed on the first part of the time domain symbols in the CORESET, the LTE CRS is not distributed on the second part of the time domain symbols, for example, Figure 3 Taking the embodiment shown in FIG. 1 as an example, the first two symbols of CORESET are distributed with LTE CRS, and the third symbol of CORESET is not distributed with LTE CRS. Fig.10 As shown, the resources corresponding to the first two symbols in the CORESET can be divided into a first sub-CORESET, and the resources corresponding to the third symbol in the CORESET can be divided into a second sub-CORESET.

[0098] Furthermore, it can be determined in the first sub-CORESET that the mapping method includes the method one, and it can be determined in the second sub-CORESET that the mapping method includes the method one.

[0099] It should be noted that since the size of the REG bundle corresponds to the CORESET, for example, specifically to the CORESET duration, after the original CORESET is divided into the first sub-CORESET and the second sub-CORESET, the size of the REG bundle corresponding to the first sub-CORESET and the size of the REG bundle corresponding to the second sub-CORESET may be different, or of course may be the same.

[0100] For example, Fig.10 In the illustrated embodiment, the CORESET duration of the first sub-CORESET is 2 symbols, and the corresponding REG bundle size can be 2, that is, one REG bundle is mapped to 2 REGs; the CORESET duration of the second sub-CORESET is 1 symbol, and the corresponding REG bundle size can be 3, that is, one REG bundle is mapped to 3 REGs.

[0101] Therefore, in the first CORESET, according to method 1, the mapping of REG bundle to REG is performed in the order of time domain first and frequency domain second. The REG bundle can be first mapped to the REG corresponding to the first symbol in RB#n of the first sub-CORESET, and then mapped to the REG corresponding to the second symbol of the first sub-CORESET. Since the REG bundle size in the first CORESET is 2, one REG bundle#n (containing 2 REGs) can be mapped in RB#n of the first sub-CORESET. Similarly, one REG bundle#n+1 can be mapped in RB#n+1 of the first sub-CORESET, and one REG bundle#n+2 can be mapped in RB#n+2 of the first sub-CORESET.

[0102] In the second CORESET, according to method 1, the mapping of REG bundle to REG is performed in the order of time domain first and frequency domain second. The REG bundle can be first mapped to the REG corresponding to the first symbol in RB#n of the second sub-CORESET, and then mapped to the REG corresponding to the second symbol of the first sub-CORESET. Since there is only one symbol in the second sub-CORESET and the REG bundle size in the first CORESET is 3, a REG bundle#m (including 3 REGs) can be mapped to the first symbol of RB#n, RB#n+1, and RB#n+2 of the first sub-CORESET.

[0103] It can be seen that when LTE CRS is distributed on some time domain symbols in CORESET, by dividing the original CORESET, in the first sub-CORESET and the second sub-CORESET, the mapping of REGbundle to REG is performed in the order of first time domain and then frequency domain, for example Fig.10 As shown, the number of REs corresponding to NR PDCCH DMRS on each REG in the REG bundle within the first sub-CORESET is the same, and the number of REs corresponding to NR PDCCH DMRS on each REG in the REG bundle within the second sub-CORESET is also the same, thereby ensuring a good channel estimation effect.

[0104] In one embodiment, determining a REGbundle on a REG in the CORESET according to the mapping mode includes:

[0105] Determine a first REG bundle on the REGs in the first sub-CORESET according to the first approach;

[0106] According to the first method, a second REG bundle is determined on the REGs in the second sub-CORESET.

[0107] Since the original CORESET is divided into the first sub-CORESET and the second sub-CORESET, it is equivalent to forming two CORESETs, so for the terminal, it is necessary to determine the REG bundles in the two sub-CORESETs respectively. Specifically, the first REG bundle can be determined on the REG in the first sub-CORESET according to the first method; the second REG bundle can be determined on the REG in the second sub-CORESET according to the first method.

[0108] It should be noted that the division method of the original CORESET and the size of the REGbundle corresponding to each sub-CORESET after the division can be predetermined based on the protocol for the terminal and the network side device, or can be determined by the network side as needed and then indicated to the terminal, for example, through system information or paging signaling.

[0109] Fig.11 It is a schematic flow chart of a resource element group bundle mapping method according to an embodiment of the present disclosure. The resource element group bundle mapping method shown in this embodiment can be executed by a network side device, and the network side device includes but is not limited to a base station in a communication system such as a 4G base station, a 5G base station, and a 6G base station. The base station can communicate with a terminal as a user equipment, and the terminal includes but is not limited to a communication device such as a mobile phone, a tablet computer, a wearable device, a sensor, and an Internet of Things device.

[0110] like Fig.11 As shown, the resource element group bundle mapping method may include the following steps:

[0111] In step S1101, a mapping method of resource element group bundle REG bundle to REG is determined according to the distribution of long term evolution cell-specific reference signals LTE CRS in the control resource set CORESET;

[0112] In step S1102, REG bundle is mapped in the CORESET according to the mapping method.

[0113] In one embodiment, the mapping method includes at least one of the following:

[0114] Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later;

[0115] Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

[0116] In one embodiment, the distribution of the LTE CRS includes at least one of the following:

[0117] LTE CRS are distributed on all time domain symbols in the CORESET;

[0118] No LTE CRS is distributed on all time domain symbols in the CORESET;

[0119] In the CORESET, LTE CRS is distributed on some time domain symbols (LTE CRS is not distributed on another part of time domain symbols).

[0120] In one embodiment, based on the distribution of LTE CRS, it can be determined whether the existing mapping method (such as method one) for mapping REG bundle to REG will result in different numbers of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle. If this situation does not occur, method one can be used. If this situation occurs, mapping can be changed to method two.

[0121] The relationship between the distribution of LTE CRS and whether there will be a situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different can be predetermined. For example, when LTE CRS is distributed on all time domain symbols in the CORESET, or when LTE CRS is not distributed on all time domain symbols in the CORESET, there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different (that is, the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same); when LTE CRS is distributed on some time domain symbols in the CORESET, there will be a situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0122] Therefore, when the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different, the network side device determines to map according to the distribution of LTE CRS in CORESET according to the second method; when the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different, the network side device determines to map according to the distribution of LTE CRS in CORESET according to the first method

[0123] Therefore, according to the embodiments of the present disclosure, the network side device can determine the mapping method of REG bundle to REG according to the distribution of LTE CRS (specifically, the corresponding RE) in CORESET, which is conducive to avoiding the situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in REG bundle is different. Then, according to the mapping method, the REG bundle is mapped in the CORESET, and channel estimation is performed according to the REG bundle. In this case, channel estimation can be performed when the number of REs corresponding to NR PDCCH DMRS on each REG in the REG bundle is the same, which is conducive to ensuring the accuracy of channel estimation.

[0124] The above embodiments mainly describe the situation where LTE CRS conflicts with NR PDCCH DMRS. LTE CRS and NRPDCCH may also conflict. In the case where LTE CRS conflicts with NR PDCCH, NRPDCCH may be punctured according to the RE corresponding to LTE CRS, or NR PDCCH may be rate matched according to the RE corresponding to LTE CRS.

[0125] Fig.12 FIG. 1 is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure. Fig.12 As shown, the mapping method of determining the resource element group bundle REG bundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0126] In step S1201, when LTE CRSs are distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

[0127] In one embodiment, when LTE CRS is distributed on all time domain symbols in the CORESET, there is LTE CRS on each REG, and the number of REs corresponding to the NR PDCCH DMRS that conflicts with the LTE CRS on each REG is the same, which is equivalent to reducing the same number of REs used to transmit NR PDCCH DMRS on each REG, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is still the same, that is, there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REGbundle is different.

[0128] Therefore, the mapping method in the relevant technology can be used, that is, method one, and the REG bundle is mapped to the REG in the order of time domain first and frequency domain later. On the basis of ensuring that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, the adjustment to the existing protocol can be reduced.

[0129] Fig.13 FIG. 1 is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure. Fig.13 As shown, the mapping method of determining the resource element group bundle REG bundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0130] In step S1301, when no LTE CRS is distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

[0131] In one embodiment, when LTE CRS is not distributed on all time domain symbols in the CORESET, there is no LTE CRS on each REG, and the number of REs corresponding to the original NR PDCCH DMRS on each REG is the same, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is also the same, so there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0132] Therefore, the mapping method in the relevant technology can be used, that is, method one, and the REG bundle is mapped to the REG in the order of time domain first and frequency domain later. On the basis of ensuring that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, the adjustment to the existing protocol can be reduced.

[0133] Fig.14 FIG. 1 is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure. Fig.14 As shown, the mapping method of determining the resource element group bundle REG bundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0134] In step S1401, when LTE CRS is distributed on some time domain symbols in the CORESET, it is determined that the mapping method includes the second method.

[0135] In one embodiment, when LTE CRS is distributed on some time domain symbols in the CORESET and LTE CRS is not distributed on other time domain symbols, then on the REG corresponding to the time domain symbol on which LTE CRS is distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is reduced, while on the REG corresponding to the time domain symbol on which LTE CRS is not distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is not reduced, so that in the REG bundle, the number of REs corresponding to NR PDCCH DMRS on the REG corresponding to the time domain symbol on which LTE CRS is distributed and the number of REs corresponding to the time domain symbol on which LTE CRS is not distributed are different, that is, the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle will be different.

[0136] Therefore, method 2 can be adopted to map REG bundle to REG in the order of frequency domain first and then time domain to ensure that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, thereby ensuring a good channel estimation effect.

[0137] Fig.15 FIG. 1 is a schematic flow chart of another resource element group bundle mapping method according to an embodiment of the present disclosure. Fig.15 As shown, the mapping method of determining the resource element group bundle REG bundle to REG according to the distribution of the long-term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes:

[0138] In step S1501, when LTE CRS is distributed on some time domain symbols in the CORESET, a first part of time domain symbols on which LTE CRS is distributed and a second part of time domain symbols on which LTE CRS is not distributed are determined;

[0139] In step S1502, a first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET and a second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET are determined;

[0140] In step S1503, it is determined in the first sub-CORESET that the mapping method includes the method one, and it is determined in the second sub-CORESET that the mapping method includes the method one.

[0141] In one embodiment, when LTE CRS is distributed on some time domain symbols in the CORESET and LTE CRS is not distributed on other time domain symbols, then on the REG corresponding to the time domain symbol on which LTE CRS is distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is reduced, while on the REG corresponding to the time domain symbol on which LTE CRS is not distributed, the number of REs corresponding to REs used to transmit NR PDCCH DMRS is not reduced, so that in the REG bundle, the number of REs corresponding to NR PDCCH DMRS on the REG corresponding to the time domain symbol on which LTE CRS is distributed and the number of REs corresponding to the time domain symbol on which LTE CRS is not distributed are different, that is, the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle will be different.

[0142] In this case, in addition to using method 2 for mapping, you can also use method 1 for mapping, but you need to perform some operations on CORESET before mapping.

[0143] In one embodiment, when LTE CRS is distributed on part of the time domain symbols in the CORESET, a first part of time domain symbols on which LTE CRS is distributed and a second part of time domain symbols on which LTE CRS is not distributed may be determined.

[0144] Then, the first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET and the second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET are determined. This is equivalent to dividing the resources corresponding to the time domain symbols with LTE CRS distributed in the original CORESET into one sub-CORESET, and dividing the resources corresponding to the time domain symbols without LTE CRS distributed in the original CORESET into another sub-CORESET.

[0145] Finally, in the first sub-CORESET, it is determined that the mapping method includes the method one, and in the second sub-CORESET, it is determined that the mapping method includes the method one.

[0146] For the first sub-CORESET, since LTE CRS is distributed on all time domain symbols in the first sub-CORESET, there is LTE CRS on each REG, and the number of REs corresponding to the NR PDCCH DMRS that conflicts with the LTE CRS on each REG is the same, which is equivalent to reducing the same number of REs used to transmit NR PDCCH DMRS on each REG, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is still the same. Therefore, in the first sub-CORESET, there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0147] For the second sub-CORESET, since there is no LTE CRS distributed on all time domain symbols in the second sub-CORESET, there is no LTE CRS on each REG, and the number of REs corresponding to the original NR PDCCH DMRS on each REG is the same, so the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is also the same. Therefore, in the second sub-CORESET, there will be no situation where the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is different.

[0148] Therefore, for the first sub-CORESET, method 1 can be used to map REGbundle to REG in the order of time domain first and frequency domain second; for the second sub-CORESET, method 1 can also be used to map REG bundle to REG in the order of time domain first and frequency domain second. On the basis of ensuring that the number of REs corresponding to NR PDCCH DMRS on different REGs in the REG bundle is the same, the adjustment of the existing protocol can be reduced.

[0149] In one embodiment, determining a REGbundle on a REG in the CORESET according to the mapping mode includes:

[0150] Mapping a first REG bundle on the REGs in the first sub-CORESET according to the first approach;

[0151] According to the first method, the second REG bundle is mapped on the REG in the second sub-CORESET.

[0152] Since the original CORESET is divided into the first sub-CORESET and the second sub-CORESET, it is equivalent to forming two CORESETs, so for the terminal, it is necessary to determine the REG bundles in the two sub-CORESETs respectively. Specifically, the first REG bundle can be determined on the REG in the first sub-CORESET according to the first method; the second REG bundle can be determined on the REG in the second sub-CORESET according to the first method.

[0153] It should be noted that the division method of the original CORESET and the size of the REGbundle corresponding to each sub-CORESET after the division can be predetermined based on the protocol for the terminal and the network side device, or can be determined by the network side as needed and then indicated to the terminal, for example, through system information or paging signaling.

[0154] Corresponding to the aforementioned embodiments of the resource element group bundle determination method and the resource element group bundle mapping method, the present disclosure also provides embodiments of a resource element group bundle determination device and a resource element group bundle mapping device.

[0155] Fig.16 It is a schematic block diagram of a resource element group bundling determination device according to an embodiment of the present disclosure. The resource element group bundling device shown in this embodiment can be applicable to a terminal, and the terminal can communicate with a network side device, and the terminal includes but is not limited to a mobile phone, a tablet computer, a wearable device, a sensor, an Internet of Things device and other communication devices, and the network side device includes but is not limited to a network side device in a 4G, 5G, 6G and other communication systems, such as a base station, a core network, etc.

[0156] like Fig.16 As shown, the resource element group bundle determination device may include:

[0157] The mode determination module 1601 is configured to determine a mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET;

[0158] The REG bundle determination module 1602 is configured to determine a REG bundle in the CORESET according to the mapping method.

[0159] In one embodiment, the mapping method includes at least one of the following:

[0160] Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later;

[0161] Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

[0162] In one embodiment, the distribution of the LTE CRS includes at least one of the following:

[0163] LTE CRS are distributed on all time domain symbols in the CORESET;

[0164] No LTE CRS is distributed on all time domain symbols in the CORESET;

[0165] LTE CRS is distributed on some time domain symbols in the CORESET.

[0166] In one embodiment, the mode determination module is configured to determine that the mapping mode includes the mode 1 when LTE CRS are distributed on all time domain symbols in the CORESET.

[0167] In one embodiment, the mode determination module is configured to determine that the mapping mode includes the mode 1 when no LTE CRS is distributed on all time domain symbols in the CORESET.

[0168] In one embodiment, the mode determination module is configured to determine that the mapping mode includes the second mode when LTE CRS is distributed on some time domain symbols in the CORESET.

[0169] In one embodiment, the mode determination module is configured to determine, when LTE CRS is distributed on part of the time domain symbols in the CORESET, a first part of the time domain symbols on which LTE CRS is distributed, and a second part of the time domain symbols on which LTE CRS is not distributed;

[0170] Determine a first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET, and a second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET;

[0171] The mapping method determined in the first sub-CORESET includes the method one, and the mapping method determined in the second sub-CORESET includes the method one.

[0172] In one embodiment, the REG bundle determination module is configured to determine a first REG bundle on a REG in the first sub-CORESET according to the first method; and determine a second REG bundle on a REG in the second sub-CORESET according to the first method.

[0173] Fig.17 The present invention is a schematic block diagram of a resource element group bundle mapping device according to an embodiment of the present disclosure. The resource element group bundle mapping device shown in this embodiment can be applied to network side devices, and the network side devices include but are not limited to base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The base station can communicate with a terminal as a user equipment, and the terminal includes but is not limited to a mobile phone, a tablet computer, a wearable device, a sensor, an Internet of Things device, and other communication devices.

[0174] like Fig.17 As shown, the resource element group bundle mapping device includes:

[0175] The mode determination module 1701 is configured to determine a mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET;

[0176] The REG bundle mapping module 1702 is configured to map REGbundle in the CORESET according to the mapping method.

[0177] In one embodiment, the mapping method includes at least one of the following:

[0178] Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later;

[0179] Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

[0180] In one embodiment, the distribution of the LTE CRS includes at least one of the following:

[0181] LTE CRS are distributed on all time domain symbols in the CORESET;

[0182] No LTE CRS is distributed on all time domain symbols in the CORESET;

[0183] LTE CRS is distributed on some time domain symbols in the CORESET.

[0184] In one embodiment, the mode determination module is configured to determine that the mapping mode includes the mode 1 when LTE CRS are distributed on all time domain symbols in the CORESET.

[0185] In one embodiment, the mode determination module is configured to determine that the mapping mode includes the mode 1 when no LTE CRS is distributed on all time domain symbols in the CORESET.

[0186] In one embodiment, the mode determination module is configured to determine that the mapping mode includes the second mode when LTE CRS is distributed on some time domain symbols in the CORESET.

[0187] In one embodiment, the mode determination module is configured to determine, when LTE CRS is distributed on part of the time domain symbols in the CORESET, a first part of the time domain symbols on which LTE CRS is distributed, and a second part of the time domain symbols on which LTE CRS is not distributed;

[0188] Determine a first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET, and a second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET;

[0189] The mapping method determined in the first sub-CORESET includes the method one, and the mapping method determined in the second sub-CORESET includes the method one.

[0190] In one embodiment, the REG bundle mapping module is configured to map the first REG bundle on the REGs in the first sub-CORESET according to the first method; and map the second REG bundle on the REGs in the second sub-CORESET according to the first method.

[0191] Regarding the device in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the relevant method, and will not be elaborated here.

[0192] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts refer to the partial description of the method embodiment. The device embodiment described above is only schematic, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0193] An embodiment of the present disclosure further proposes a communication device, comprising: a processor; and a memory for storing a computer program; wherein, when the computer program is executed by the processor, the resource element group bundling determination method described in any of the above embodiments is implemented.

[0194] An embodiment of the present disclosure further proposes a communication device, comprising: a processor; and a memory for storing a computer program; wherein, when the computer program is executed by the processor, the resource element group bundle mapping method described in any of the above embodiments is implemented.

[0195] An embodiment of the present disclosure further proposes a computer-readable storage medium for storing a computer program, which, when executed by a processor, implements the steps in the resource element group bundling determination method described in any of the above embodiments.

[0196] An embodiment of the present disclosure further proposes a computer-readable storage medium for storing a computer program, which, when executed by a processor, implements the steps in the resource element group bundle mapping method described in any of the above embodiments.

[0197] like Fig.18 As shown, Fig.18 1 is a schematic block diagram of an apparatus 1800 for resource element group bundle mapping according to an embodiment of the present disclosure. The apparatus 1800 may be provided as a base station. Fig.18 The apparatus 1800 includes a processing component 1822, a wireless transmission / reception component 1824, an antenna component 1826, and a signal processing part specific to the wireless interface. The processing component 1822 may further include one or more processors. One of the processors in the processing component 1822 may be configured to implement the resource element group bundling mapping method described in any of the above embodiments.

[0198] Fig.19 1 is a schematic block diagram of an apparatus 1900 for determining resource element group bundles according to an embodiment of the present disclosure. For example, the apparatus 1900 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0199] Reference Fig.19 , the device 1900 may include one or more of the following components: a processing component 1902 , a memory 1904 , a power component 1906 , a multimedia component 1908 , an audio component 1910 , an input / output (I / O) interface 1912 , a sensor component 1914 , and a communication component 1916 .

[0200] The processing component 1902 generally controls the overall operation of the device 1900, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1902 may include one or more processors 1920 to execute instructions to complete all or part of the steps of the resource element group bundle determination method described above. In addition, the processing component 1902 may include one or more modules to facilitate interaction between the processing component 1902 and other components. For example, the processing component 1902 may include a multimedia module to facilitate interaction between the multimedia component 1908 and the processing component 1902.

[0201] The memory 1904 is configured to store various types of data to support operations on the device 1900. Examples of such data include instructions for any application or method operating on the device 1900, contact data, phone book data, messages, pictures, videos, etc. The memory 1904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0202] The power supply component 1906 provides power to the various components of the device 1900. The power supply component 1906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 1900.

[0203] The multimedia component 1908 includes a screen that provides an output interface between the device 1900 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1908 includes a front camera and / or a rear camera. When the device 1900 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0204] The audio component 1910 is configured to output and / or input audio signals. For example, the audio component 1910 includes a microphone (MIC), and when the device 1900 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 1904 or sent via the communication component 1916. In some embodiments, the audio component 1910 also includes a speaker for outputting audio signals.

[0205] I / O interface 1912 provides an interface between processing component 1902 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0206] The sensor assembly 1914 includes one or more sensors for providing various aspects of the status assessment of the device 1900. For example, the sensor assembly 1914 can detect the open / closed state of the device 1900, the relative positioning of components, such as the display and keypad of the device 1900, the sensor assembly 1914 can also detect the position change of the device 1900 or a component of the device 1900, the presence or absence of user contact with the device 1900, the orientation or acceleration / deceleration of the device 1900, and the temperature change of the device 1900. The sensor assembly 1914 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1914 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1914 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0207] The communication component 1916 is configured to facilitate wired or wireless communication between the device 1900 and other devices. The device 1900 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G LTE, 5G NR, or a combination thereof. In an exemplary embodiment, the communication component 1916 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1916 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0208] In an exemplary embodiment, apparatus 1900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned resource element group bundling determination method.

[0209] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1904 including instructions, and the instructions can be executed by the processor 1920 of the device 1900 to complete the resource element group bundling determination method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0210] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0211] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0212] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0213] The method and device provided in the embodiments of the present disclosure are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the method of the present disclosure and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present disclosure, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present disclosure.

Claims

1. A method for determining a resource element group bundle, characterized in that: Executed by a terminal, the method includes: Determine the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET; Determine a REG bundle in the CORESET according to the mapping mode; The mapping method includes at least one of the following: Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later; Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

2. The method according to claim 1, characterized in that The distribution of the LTE CRS includes at least one of the following: LTE CRS are distributed on all time domain symbols in the CORESET; No LTE CRS is distributed on all time domain symbols in the CORESET; LTE CRS is distributed on some time domain symbols in the CORESET.

3. The method according to claim 2, characterized in that The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS are distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

4. The method according to claim 2, characterized in that: The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS is not distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

5. The method according to claim 2, characterized in that: The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS is distributed on some time domain symbols in the CORESET, it is determined that the mapping method includes the second method.

6. The method according to claim 2, characterized in that The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS is distributed on some time domain symbols in the CORESET, determining a first part of time domain symbols on which LTE CRS is distributed, and a second part of time domain symbols on which LTE CRS is not distributed; Determine a first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET, and a second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET; The mapping method determined in the first sub-CORESET includes the method one, and the mapping method determined in the second sub-CORESET includes the method one.

7. The method according to claim 6, characterized in that Determining a REG bundle on a REG in the CORESET according to the mapping method includes: Determine a first REG bundle on the REGs in the first sub-CORESET according to the first approach; According to the first method, a second REG bundle is determined on the REGs in the second sub-CORESET.

8. A resource element group bundle mapping method, characterized in that: The method is performed by a network side device and includes: Determine the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET; Map the REG bundle in the CORESET according to the mapping method; The mapping method includes at least one of the following: Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later; Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

9. The method according to claim 8, characterized in that The distribution of the LTE CRS includes at least one of the following: LTE CRS are distributed on all time domain symbols in the CORESET; No LTE CRS is distributed on all time domain symbols in the CORESET; LTE CRS is distributed on some time domain symbols in the CORESET.

10. The method according to claim 9, characterized in that The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS are distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

11. The method according to claim 9, characterized in that The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS is not distributed on all time domain symbols in the CORESET, it is determined that the mapping method includes the first method.

12. The method according to claim 9, characterized in that The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS is distributed on some time domain symbols in the CORESET, it is determined that the mapping method includes the second method.

13. The method according to claim 9, characterized in that The determining of the mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signal LTE CRS in the control resource set CORESET includes: When LTE CRS is distributed on some time domain symbols in the CORESET, determining a first part of time domain symbols on which LTE CRS is distributed, and a second part of time domain symbols on which LTE CRS is not distributed; Determine a first sub-CORESET corresponding to the first part of the time domain symbols in the CORESET, and a second sub-CORESET corresponding to the second part of the time domain symbols in the CORESET; The mapping method determined in the first sub-CORESET includes the method one, and the mapping method determined in the second sub-CORESET includes the method one.

14. The method according to claim 13, characterized in that Determining a REG bundle on a REG in the CORESET according to the mapping method includes: Mapping a first REG bundle on a REG in the first sub-CORESET according to the first approach; According to the first method, the second REG bundle is mapped on the REG in the second sub-CORESET.

15. A resource element group bundle determination device, characterized in that: include: A mode determination module is configured to determine a mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signals LTECRS in the control resource set CORESET; A REG bundle determination module, configured to determine a REG bundle in the CORESET according to the mapping mode; The mapping method includes at least one of the following: Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later; Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

16. A resource element group bundle mapping device, characterized in that: Applicable to network side equipment, the device includes: A mode determination module is configured to determine a mapping mode of resource element group bundle REG bundle to REG according to the distribution of long term evolution cell-specific reference signals LTECRS in the control resource set CORESET; A REG bundle mapping module, configured to map a REG bundle in the CORESET according to the mapping mode; The mapping method includes at least one of the following: Method 1: Mapping REG bundle to REG in the order of time domain first and frequency domain later; Method 2: Mapping of REG bundle to REG is performed in the order of frequency domain first and then time domain.

17. A communication device, characterized in that: include: processor; memory for storing computer programs; When the computer program is executed by a processor, the resource element group bundling determination method according to any one of claims 1 to 7 is implemented.

18. A communication device, characterized in that: include: processor; memory for storing computer programs; When the computer program is executed by a processor, the resource element group bundle mapping method described in any one of claims 8 to 14 is implemented.

19. A computer-readable storage medium for storing a computer program, characterized in that: When the computer program is executed by a processor, the steps in the resource element group bundling determination method according to any one of claims 1 to 7 are implemented.

20. A computer-readable storage medium for storing a computer program, characterized in that: When the computer program is executed by a processor, the steps in the resource element group bundle mapping method according to any one of claims 8 to 14 are implemented.

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