Communication method and device, terminal, network equipment and storage medium

Abstract

The invention discloses a communication method and device, a terminal, network equipment and a storage medium, and the method comprises the steps that the terminal receives a first SSB on a first carrier and obtains first information; the first information represents configuration information for the terminal to access the first carrier and at least one second carrier; and determining the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

Description

Technical Field

[0001] The present application relates to the field of wireless technology, and in particular to a communication method, apparatus, terminal, network equipment and storage medium. Background Art

[0002] In a multi-band converged network, the terminal can use different frequency band combinations for uplink and downlink transmission as needed, improving the flexibility of the network. However, in related technologies, the nodes of a multi-band converged network are densely deployed, and the terminal needs to perform synchronization signal block (SSB) detection on each node, resulting in a large communication delay. Summary of the invention

[0003] To solve related technical problems, the embodiments of the present application provide a communication method, apparatus, terminal, network equipment and storage medium.

[0004] The technical solution of the embodiment of the present application is implemented as follows:

[0005] The present application provides a communication method, which is applied to a terminal and includes:

[0006] receiving a first SSB on a first carrier and acquiring first information; the first information representing configuration information for the terminal to access the first carrier and at least one second carrier;

[0007] According to the frequency position of the reference point A determined based on the first SSB and the first information, the position of the first carrier and the position of each second carrier in the at least one second carrier are determined.

[0008] Among them, in the above scheme, the frequency band to which the first carrier belongs is different from that to which any second carrier belongs.

[0009] In the above solution, the first information represents a physical resource block (PRB, Physical Resource Block) offset between the carrier and the reference point A; obtaining the first information on the first carrier includes:

[0010] A first physical downlink shared channel (PDSCH) and at least one second PDSCH are received on the first carrier; the first PDSCH is used to carry a first system information block SIB1 of the first carrier; each second PDSCH is used to carry a second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same control resource set (CORESET, Control-Resource Set) on the first carrier; the SIB1 carries indication information of a PRB offset of the corresponding carrier;

[0011] The first SIB1 is demodulated to obtain a PRB offset between the first carrier and reference point A, and each second SIB1 is demodulated to obtain a PRB offset between each second carrier in the at least one second carrier and reference point A.

[0012] In the above solution, before receiving the first PDSCH and the at least one second PDSCH on the first carrier, the method further includes:

[0013] A first physical downlink control channel PDCCH sent by the first carrier is blindly detected based on the CORESET; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0014] In the above solution, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0015] The PRB offset between the corresponding carrier and reference point A;

[0016] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of an initial bandwidth part (BWP, BandWidth Part) of the first carrier or a subcarrier with the largest index value of the first carrier;

[0017] A PRB offset between the first carrier and a frequency reference value, and a PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

[0018] In the above scheme, the resource block (RB) offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

[0019] In the above scheme, the method further includes:

[0020] A synchronization signal (SS) is received on the second carrier.

[0021] The embodiment of the present application further provides a communication method, which is applied to a first network device, including:

[0022] A first SSB and first information are sent via a first carrier; the first information represents configuration information for a terminal to access the first carrier and at least one second carrier.

[0023] Among them, in the above scheme, the frequency band to which the first carrier belongs is different from that to which any second carrier belongs.

[0024] In the above solution, sending the first information through the first carrier includes:

[0025] A first PDSCH and at least one second PDSCH are sent via the first carrier; wherein,

[0026] The first PDSCH is used to carry the first SIB1 of the first carrier; each second PDSCH is used to carry the second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; the SIB1 carries indication information of the PRB offset of the corresponding carrier.

[0027] In the above solution, sending the first information through the first carrier further includes:

[0028] A first PDCCH is sent through the first carrier; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0029] In the above solution, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0030] The PRB offset between the corresponding carrier and reference point A;

[0031] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial BWP of the first carrier or the subcarrier with the largest index value of the first carrier;

[0032] The PRB offset between the first carrier and the frequency reference value and the PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

[0033] In the above scheme, the RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

[0034] The embodiment of the present application further provides a communication method, which is applied to a second network device, including:

[0035] SS is sent via a second carrier; wherein,

[0036] Configuration information used by the terminal to access the second carrier is sent by the first carrier.

[0037] Among them, in the above scheme, the first carrier and the second carrier belong to different frequency bands.

[0038] The present application also provides a communication device, including:

[0039] A first receiving unit, configured to receive a first SSB on a first carrier and obtain first information; the first information represents configuration information for the terminal to access the first carrier and at least one second carrier;

[0040] A determination unit is used to determine the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

[0041] The present application also provides a communication device, including:

[0042] The first sending unit is used to send a first SSB and first information through a first carrier; the first information represents configuration information used for the terminal to access the first carrier and at least one second carrier.

[0043] The present application also provides a communication device, including:

[0044] The second sending unit is used to send the SS through the second carrier; wherein,

[0045] Configuration information used by the terminal to access the second carrier is sent by the first carrier.

[0046] The embodiment of the present application also provides a terminal, comprising: a first processor and a first communication interface; wherein,

[0047] The first communication interface is used to receive a first SSB on a first carrier and obtain first information; the first information represents configuration information for the terminal to access the first carrier and at least one second carrier;

[0048] The first processor is used to determine the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

[0049] The embodiment of the present application further provides a first network device, comprising: a second processor and a second communication interface; wherein,

[0050] The second communication interface is used to send a first SSB and first information through a first carrier; the first information represents configuration information used for the terminal to access the first carrier and at least one second carrier.

[0051] The embodiment of the present application further provides a second network device, including: a third processor and a third communication interface; wherein,

[0052] The third communication interface is used to send SS through the second carrier; wherein,

[0053] Configuration information used by the terminal to access the second carrier is sent by the first carrier.

[0054] The embodiment of the present application further provides a terminal, comprising: a first processor and a first memory for storing a computer program that can be run on the processor,

[0055] Wherein, the first processor is used to execute the steps of any of the above-mentioned terminal side methods when running the computer program.

[0056] The embodiment of the present application further provides a first network device, comprising: a second processor and a second memory for storing a computer program that can be run on the processor,

[0057] Wherein, the second processor is used to execute the steps of any one of the above-mentioned methods on the first network device side when running the computer program.

[0058] The embodiment of the present application further provides a second network device, comprising: a third processor and a third memory for storing a computer program that can be run on the processor,

[0059] Wherein, the third processor is used to execute the steps of any one of the above-mentioned methods on the second network device side when running the computer program.

[0060] An embodiment of the present application also provides a storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program implements the steps of any of the above-mentioned methods on the terminal side, or implements the steps of any of the above-mentioned methods on the first network device side, or implements the steps of any of the above-mentioned methods on the second network device side.

[0061] In the communication method, apparatus, terminal, network equipment and storage medium provided in the embodiments of the present application, the terminal receives a first SSB on a first carrier and obtains first information, wherein the first information represents configuration information for the terminal to access the first carrier and at least one second carrier, so that the terminal determines the position of the first carrier and the position of each second carrier in at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information. In the above scheme, the configuration information of different carriers is sent uniformly by one carrier, that is, multiple carriers share one SSB, so that in the scenario of multi-band fusion networking, the terminal does not need to perform SSB detection on each node, thereby effectively reducing the communication delay. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 A schematic diagram of the architecture of multi-band fusion networking in related technologies;

[0063] Figure 2 A schematic diagram of a communication method implementation flow in an embodiment of the present application;

[0064] Figure 3 This is a schematic diagram of carrier transmission in an embodiment of the present application;

[0065] Figure 4 A schematic diagram of another communication method implementation flow of an application embodiment;

[0066] Figure 5 A schematic diagram of the implementation flow of the third communication method of the application embodiment;

[0067] Figure 6 This is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0068] Figure 7 This is a schematic diagram of another communication device structure according to an embodiment of the present application;

[0069] Figure 8 This is a schematic diagram of the structure of a third communication device according to an embodiment of the present application;

[0070] Fig. 9 This is a schematic diagram of the terminal structure of an embodiment of the present application;

[0071] Fig.10 This is a schematic diagram of the structure of the first network device in the embodiment of the present application;

[0072] Fig.11 This is a schematic diagram of the second network device structure of an embodiment of the present application. DETAILED DESCRIPTION

[0073] In multi-band converged networking, terminals can use different frequency band combinations for uplink and downlink transmission as needed, improving networking flexibility. However, in related technologies, multi-band converged networking nodes are densely deployed. If a terminal wants to establish a connection with each node, it needs to perform SSB detection on each node, which results in a large communication delay and poor user experience.

[0074] Based on this, in each embodiment of the present application, the terminal receives the first SSB on the first carrier and obtains the first information, wherein the first information represents the configuration information for the terminal to access the first carrier and at least one second carrier, so that the terminal determines the position of the first carrier and the position of each second carrier in at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information. In the above scheme, the configuration information of different carriers is sent uniformly by one carrier, that is, multiple carriers share one SSB, so that in the scenario of multi-band fusion networking, the terminal does not need to perform SSB detection on each node, thereby effectively reducing the communication delay.

[0075] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0076] first, Figure 1 The schematic diagram of the architecture of multi-band fusion networking in the related technology is shown. In actual application, the terminal accesses multiple carriers. The combination of these multiple carriers is defined by the network side according to the deployment of base stations. Each carrier in the combination is not co-located, that is, each carrier in the combination is deployed in a different base station and / or a different transmission point. In actual application, the terminal can use different frequency band combinations for uplink and downlink transmission to improve the flexibility of networking.

[0077] The present application embodiment provides a communication method, which is applied to a terminal. Figure 2 , methods include:

[0078] Step 201: Receive a first SSB on a first carrier and obtain first information.

[0079] The first information represents configuration information used by the terminal to access the first carrier and at least one second carrier.

[0080] Step 202: Determine the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

[0081] In the embodiment of the present application, the combination of the first carrier and the second carrier may include a first carrier and one or more second carriers, and the frequency bands of the carriers in the combination may be the same or different. In addition, in actual application, in order to ensure frequency band compatibility, the frequency band to which the first carrier belongs is a default frequency band generally supported by the terminal.

[0082] In one embodiment, the first carrier and any second carrier belong to different frequency bands.

[0083] Here, the terminal receives the first SSB on the first carrier, obtains the subcarrier offset of the first SSB and the RB offset of the first SSB relative to the reference point A, thereby determining the frequency position of the reference point A. Specifically, the terminal receives the first SSB on the first carrier, demodulates the physical broadcast channel (PBCH) from the first SSB, obtains the master information block (MIB) message of the PBCH payload, and determines the subcarrier offset K of the first SSB. SSB When the carrier frequency is greater than 6 GHz, K SSB is 4 bits; when the carrier frequency is less than 6GHz, K SSB Then, the terminal obtains the configuration information of CORESET#0 according to the MIB message, blindly detects the PDCCH of the PDSCH scheduling SIB1, and thus demodulates SIB1 to obtain the RB offset N of the first SSB relative to the reference point A. CRB ; Afterwards, the terminal passes K SSB and N CRB Locate the frequency position of reference point A.

[0084] In an embodiment of the present application, the network side sends a first SSB, a first PDCCH corresponding to the first carrier, a first PDSCH, and a second PDSCH corresponding to each second carrier on the first carrier. Among them, the first PDSCH and the second PDSCH corresponding to each second carrier are scheduled by the first PDCCH. Here, the first PDSCH and the second PDSCH corresponding to each second carrier are associated with the same CORESET on the first carrier, and the reception of the first PDSCH and the second PDSCH can be completed by blindly detecting the first PDCCH through the CORESET. Therefore, in one embodiment, before receiving the first PDSCH and the at least one second PDSCH on the first carrier, the method also includes:

[0085] A first PDCCH sent by the first carrier is blindly detected based on the CORESET; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0086] In an embodiment of the present application, the first information represents configuration information for the terminal to access the first carrier and each second carrier. For example, the first information may be a PRB offset (offsetToCarrier) between each carrier and a reference point A. In one embodiment, obtaining the first information on the first carrier includes:

[0087] A first PDSCH and at least one second PDSCH are received on the first carrier; the first PDSCH is used to carry a first SIB1 of the first carrier; each second PDSCH is used to carry a second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; the SIB1 carries indication information of a PRB offset of a corresponding carrier;

[0088] The first SIB1 is demodulated to obtain a PRB offset between the first carrier and reference point A, and each second SIB1 is demodulated to obtain a PRB offset between each second carrier in the at least one second carrier and reference point A.

[0089] Here, by demodulating SIB1, in addition to obtaining the RB offset of the first SSB relative to reference point A, the PRB offset between the corresponding carrier and reference point A can also be obtained, and then the bandwidth position of the corresponding carrier can be determined based on the frequency position of reference point A and the PRB offset between the corresponding carrier and reference point A.

[0090] In the above embodiment, the system messages SIB1 of different carriers are all sent uniformly by the first carrier, that is, different carriers share one SSB, so that only the synchronization sequence needs to be sent on the second carrier, so that the broadcast information on the second carrier is simplified, thereby effectively reducing the communication delay of the terminal accessing the second carrier. Based on this, the method also includes:

[0091] The SS is received on the second carrier.

[0092] That is, the terminal only needs to complete the reception of the SS on the second carrier, and the bandwidth position of the second carrier can be obtained through the SIB1 transmitted in the first carrier, thereby effectively reducing the communication delay of the terminal accessing the second carrier.

[0093] In actual application, when the system messages of multiple carriers are sent uniformly by one carrier, the PDSCHs sending SIB1 corresponding to different carriers are scheduled by one PDCCH, that is, the PDSCHs of different carriers are associated with the same CORESET#0, so the number of PDCCH blind detections by the terminal is reduced, reducing the complexity of PDCCH blind detection. In addition, different carriers share one SSB and CORESET#0, so for different carriers, K SSB and N CRB The same only needs to be indicated once in the SSB. Compared with each carrier independently sending the SSB and PDCCH, the message contents of MIB and SIB1 are simplified. Based on this, in one embodiment, the RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1, not in the second SIB1.

[0094] In one embodiment, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0095] The PRB offset between the corresponding carrier and reference point A;

[0096] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial BWP of the first carrier or the subcarrier with the largest index value of the first carrier;

[0097] A PRB offset between the first carrier and a frequency reference value, and a PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

[0098] Correspondingly, the embodiment of the present application further provides a communication method, which is applied to a first network device. Here, the first network device represents a network device for sending a first carrier. Figure 4 , methods include:

[0099] Step 401: Send a first SSB and first information via a first carrier.

[0100] The first information represents configuration information used by the terminal to access the first carrier and at least one second carrier.

[0101] In one embodiment, the first carrier and any second carrier belong to different frequency bands.

[0102] In one embodiment, the first information represents a PRB offset between a carrier and a reference point A; and sending the first information through the first carrier includes:

[0103] A first PDSCH and at least one second PDSCH are transmitted through the first carrier.

[0104] Among them, the first PDSCH is used to carry the first SIB1 of the first carrier; each second PDSCH is used to carry the second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; and the SIB1 carries indication information of the PRB offset of the corresponding carrier.

[0105] In one embodiment, sending the first information through the first carrier further includes:

[0106] A first PDCCH is sent through the first carrier; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0107] In one embodiment, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0108] The PRB offset between the corresponding carrier and reference point A;

[0109] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial BWP of the first carrier or the subcarrier with the largest index value of the first carrier;

[0110] The PRB offset between the first carrier and the frequency reference value and the PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

[0111] In one embodiment, the RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

[0112] Correspondingly, the embodiment of the present application further provides a communication method, which is applied to a second network device, where the second network device represents a network device that sends a second carrier. Figure 5 , methods include:

[0113] Step 501: Send SS via the second carrier.

[0114] The configuration information used for the terminal to access the second carrier is sent by the first carrier.

[0115] The first carrier and the second carrier belong to different frequency bands.

[0116] The specific implementation of the above first network device side and second network device side solutions can be understood corresponding to the above terminal side embodiments, and will not be repeated here.

[0117] The present application is further described in detail below in conjunction with application examples.

[0118] In this application embodiment, in the scenario of multi-band fusion networking, the terminal accesses the first carrier and the second carrier, and performs uplink and downlink transmission according to different frequency bands corresponding to the two carriers. Figure 3 The network side sends a first SSB, a first PDCCH, a first PDSCH and a second PDSCH on a first carrier, and sends a second SSB on a second carrier, where the first carrier is located at base station 1 and the second carrier is located at base station 2.

[0119] Step 1: The terminal obtains the subcarrier offset of SSB and the RB offset of SSB relative to Point A on the first carrier, and determines the frequency position of reference point A.

[0120] Step 2: The terminal obtains the subcarrier spacing and PRB offset of the first carrier and the second carrier, and determines the frequency positions of the first carrier and the second carrier. The subcarrier spacing of the first carrier and the second carrier are 15 kHz and 120 kHz respectively.

[0121] Case 1: directly indicating the PRB offset of the first carrier and the second carrier.

[0122] Exemplarily, the PRB offsets of the first carrier and the second carrier are indicated as 5PRB and 10PRB respectively, then the terminal can calculate that the frequency interval between the first carrier and the reference point A is 15*12*5=900kHz; the frequency interval between the second carrier and the reference point A is 120*12*10=14400kHz.

[0123] Case 2: Taking the highest frequency of the first carrier as the frequency reference point, indicating the PRB offset between the second carrier and the frequency reference point.

[0124] Exemplarily, the PRB offsets of the first carrier and the second carrier are indicated as 5PRB and 10PRB respectively, and the highest frequency of the first carrier is 15*12*5=900kHz. Then the PRB offset of 10PRB of the second carrier takes 900kHz as the frequency reference point. The terminal can calculate that the frequency interval between the second carrier and Point A is 900kHz+120*12*10=15300kHz.

[0125] Case 3: A frequency reference value is predefined to indicate a PRB offset between each carrier and the frequency reference value.

[0126] Exemplarily, the PRB offset of the first carrier is indicated as -2PRB, and the PRB offset of the second carrier is indicated as 2PRB. Based on this, the terminal can calculate that the frequency interval between the first carrier and the reference point A is 1000kHz-15*12*2=640kHz, and the frequency interval between the second carrier and the reference point A is 1000kHz+15*12*2=1360kHz.

[0127] For carriers of different frequency bands in a converged network, the frequencies of each carrier are very different. In the related technology, the SIB1 sent on each carrier needs to indicate the subcarrier spacing of the corresponding carrier and the PRB offset between the corresponding carrier and the reference point A, which brings about a large resource overhead. In an embodiment of the present application, the configuration information of different carriers is sent uniformly by one carrier, that is, multiple carriers share one SSB, and only synchronization signals need to be sent on other carriers, and the broadcast information is simplified. In addition, the PDSCH sent by SIB1 of different carriers is associated with the same CORESET#0, which effectively reduces the blind detection complexity of PDCCH. In addition, different carriers share one SSB, so that for different carriers, K SSB and N CRB The network side only needs to indicate once. Compared with the case where each carrier sends SSB and PDCCH independently, the messages of MIB and SIB1 have been simplified, effectively compressing resource overhead. Based on the above, in the scenario of multi-band fusion networking, the communication delay is effectively reduced, the access speed of the terminal to other carriers is greatly accelerated, and the communication efficiency is improved.

[0128] In order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides a communication device, which is arranged on the terminal, such as Figure 6 As shown, the device comprises:

[0129] The first receiving unit 601 is configured to receive a first SSB on a first carrier and obtain first information; the first information represents configuration information for the terminal to access the first carrier and at least one second carrier;

[0130] The determination unit 602 is used to determine the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

[0131] In one embodiment, the first carrier and any second carrier belong to different frequency bands.

[0132] In one embodiment, the first information represents a PRB offset between the carrier and the reference point A; the first receiving unit 601 acquires the first information on the first carrier, including:

[0133] A first PDSCH and at least one second PDSCH are received on the first carrier; the first PDSCH is used to carry a first SIB1 of the first carrier; each second PDSCH is used to carry a second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; the SIB1 carries indication information of a PRB offset of a corresponding carrier;

[0134] The first SIB1 is demodulated to obtain a PRB offset between the first carrier and reference point A, and each second SIB1 is demodulated to obtain a PRB offset between each second carrier in the at least one second carrier and reference point A.

[0135] In one embodiment, before receiving the first PDSCH and the at least one second PDSCH on the first carrier, the first receiving unit 601 is further configured to:

[0136] A first physical downlink control channel PDCCH sent by the first carrier is blindly detected based on the CORESET; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0137] In one embodiment, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0138] The PRB offset between the corresponding carrier and reference point A;

[0139] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial BWP of the first carrier or the subcarrier with the largest index value of the first carrier;

[0140] A PRB offset between the first carrier and a frequency reference value, and a PRB offset between the second carrier and the frequency reference value.

[0141] In one embodiment, the resource block RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

[0142] In one embodiment, the device further comprises:

[0143] The second receiving unit is configured to receive the SS on a second carrier.

[0144] In actual application, the first receiving unit 601 and the second receiving unit may be implemented by a communication interface in a communication device; and the determining unit 602 may be implemented by a processor in the communication device.

[0145] In order to implement the method on the first network device side of the embodiment of the present application, the embodiment of the present application also provides a communication device, which is arranged on the first network device, such as Figure 7 As shown, the device comprises:

[0146] The first sending unit 701 is used to send a first SSB and first information through a first carrier; the first information represents configuration information used for the terminal to access the first carrier and at least one second carrier.

[0147] In one embodiment, the first carrier and any second carrier belong to different frequency bands.

[0148] In one embodiment, the first information represents a PRB offset between the carrier and the reference point A; and the first sending unit 701 sends the first information through the first carrier, including:

[0149] A first PDSCH and at least one second PDSCH are sent via the first carrier; wherein,

[0150] The first PDSCH is used to carry the first SIB1 of the first carrier; each second PDSCH is used to carry the second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; the SIB1 carries indication information of the PRB offset of the corresponding carrier.

[0151] In one embodiment, the first sending unit 701 is further configured to:

[0152] A first PDCCH is sent through the first carrier; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0153] In one embodiment, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0154] The PRB offset between the corresponding carrier and reference point A;

[0155] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial BWP of the first carrier or the subcarrier with the largest index value of the first carrier;

[0156] The PRB offset between the first carrier and the frequency reference value and the PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

[0157] In one embodiment, the RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

[0158] In actual application, the first sending unit 701 can be implemented by a communication interface in a communication device.

[0159] In order to implement the method on the second network device side of the embodiment of the present application, the embodiment of the present application also provides a communication device, which is arranged on the second network device, such as Figure 8 As shown, the device comprises:

[0160] The second sending unit 801 is used to send the SS through the second carrier; wherein,

[0161] Configuration information used by the terminal to access the second carrier is sent by the first carrier.

[0162] The first carrier and the second carrier belong to different frequency bands.

[0163] In actual application, the second sending unit 801 can be implemented by a communication interface in a communication device.

[0164] It should be noted that: when the communication device provided in the above embodiment performs communication, only the division of the above program modules is used as an example. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the communication device and the communication method embodiment provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0165] Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides a terminal, such as Fig. 9 As shown, the terminal 900 includes:

[0166] The first communication interface 901 is capable of exchanging information with other network nodes;

[0167] The first processor 902 is connected to the first communication interface 901 to implement information exchange with other network nodes, and is used to execute the method provided by one or more technical solutions of the terminal side when running a computer program. The computer program is stored in the first memory 903.

[0168] Specifically, the first communication interface 901 is used to receive a first SSB on a first carrier and obtain first information; the first information represents configuration information for the terminal to access the first carrier and at least one second carrier;

[0169] The first processor 902 is used to determine the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

[0170] In one embodiment, the first carrier and any second carrier belong to different frequency bands.

[0171] In one embodiment, the first information represents a PRB offset between the carrier and the reference point A; the first communication interface 901 acquires the first information on the first carrier, including:

[0172] A first PDSCH and at least one second PDSCH are received on the first carrier; the first PDSCH is used to carry a first SIB1 of the first carrier; each second PDSCH is used to carry a second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; the SIB1 carries indication information of a PRB offset of a corresponding carrier;

[0173] The first SIB1 is demodulated to obtain a PRB offset between the first carrier and reference point A, and each second SIB1 is demodulated to obtain a PRB offset between each second carrier in the at least one second carrier and reference point A.

[0174] In one embodiment, before receiving the first PDSCH and the at least one second PDSCH on the first carrier, the first communication interface 901 is further configured to:

[0175] A first physical downlink control channel PDCCH sent by the first carrier is blindly detected based on the CORESET; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0176] In one embodiment, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0177] The PRB offset between the corresponding carrier and reference point A;

[0178] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial BWP of the first carrier or the subcarrier with the largest index value of the first carrier;

[0179] A PRB offset between the first carrier and a frequency reference value, and a PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

[0180] In one embodiment, the RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

[0181] In one embodiment, the first communication interface 901 is further configured to receive a SS on a second carrier.

[0182] It should be noted that the specific processing process of the first processor 902 and the first communication interface 901 can be understood by referring to the above method.

[0183] Of course, in actual application, the various components in the terminal 900 are coupled together through the bus system 904. It can be understood that the bus system 904 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 904 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Fig. 9 Various buses are labeled as bus system 904.

[0184] The first memory 903 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 900. Examples of such data include: any computer program used to operate on the terminal 900.

[0185] The method disclosed in the above embodiment of the present application can be applied to the first processor 902, or implemented by the first processor 902. The first processor 902 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware or software instructions in the first processor 902. The above-mentioned first processor 902 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The first processor 902 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the first memory 903, and the first processor 902 reads the information in the first memory 903, and completes the steps of the above method in combination with its hardware.

[0186] In an exemplary embodiment, the terminal 900 may be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field programmable gate array (FPGA), general processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

[0187] Based on the hardware implementation of the above program module, and in order to implement the method of the first network device side of the embodiment of the present application, the embodiment of the present application also provides a first network device, such as Fig.10 As shown, the first network device 1000 includes:

[0188] The second communication interface 1001 is capable of exchanging information with other network nodes;

[0189] The second processor 1002 is connected to the second communication interface 1001 to implement information exchange with other network nodes, and is used to execute the method provided by one or more technical solutions of the first network device side when running a computer program. The computer program is stored in the second memory 1003.

[0190] Specifically, the second communication interface 1001 is used to send a first SSB and first information through a first carrier; the first information represents configuration information used for the terminal to access the first carrier and at least one second carrier.

[0191] In one embodiment, the first carrier and any second carrier belong to different frequency bands.

[0192] In one embodiment, the first information represents a PRB offset between a carrier and a reference point A; and the second communication interface 1001 sends the first information through the first carrier, including:

[0193] A first PDSCH and at least one second PDSCH are sent via the first carrier; wherein,

[0194] The first PDSCH is used to carry the first SIB1 of the first carrier; each second PDSCH is used to carry the second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; the SIB1 carries indication information of the PRB offset of the corresponding carrier.

[0195] In one embodiment, the second communication interface 1001 is further used for:

[0196] A first PDCCH is sent through the first carrier; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

[0197] In one embodiment, the indication information of the PRB offset carried in SIB1 includes at least one of the following:

[0198] The PRB offset between the corresponding carrier and reference point A;

[0199] A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial BWP of the first carrier or the subcarrier with the largest index value of the first carrier;

[0200] The PRB offset between the first carrier and the frequency reference value and the PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

[0201] In one embodiment, the RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

[0202] It should be noted that the specific processing process of the second processor 1002 and the second communication interface 1001 can be understood by referring to the above method.

[0203] Of course, in actual application, the various components in the first network device 1000 are coupled together through the bus system 1004. It can be understood that the bus system 1004 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1004 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, Fig.10 Various buses are labeled as bus system 1004 .

[0204] The second memory 1003 in the embodiment of the present application is used to store various types of data to support the operation of the first network device 1000. Examples of such data include: any computer program used to operate on the first network device 1000.

[0205] The method disclosed in the above embodiment of the present application can be applied to the second processor 1002, or implemented by the second processor 1002. The second processor 1002 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the second processor 1002. The above-mentioned second processor 1002 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The second processor 1002 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the second memory 1003, and the second processor 1002 reads the information in the second memory 1003 and completes the steps of the above method in combination with its hardware.

[0206] In an exemplary embodiment, the first network device 1000 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned method.

[0207] Based on the hardware implementation of the above program module, and in order to implement the method of the second network device side of the embodiment of the present application, the embodiment of the present application also provides a second network device, such as Fig.11 As shown, the second network device 1100 includes:

[0208] The third communication interface 1101 is capable of exchanging information with other network nodes;

[0209] The third processor 1102 is connected to the third communication interface 1101 to implement information exchange with other network nodes, and is used to execute the method provided by one or more technical solutions of the second network device side when running the computer program. The computer program is stored in the third memory 1103.

[0210] Specifically, the third communication interface 1101 is used to send SS through the second carrier; wherein,

[0211] Configuration information used by the terminal to access the second carrier is sent by the first carrier.

[0212] The first carrier and the second carrier belong to different frequency bands.

[0213] Of course, in actual application, the various components in the second network device 1100 are coupled together through the bus system 1104. It can be understood that the bus system 1104 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1104 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Fig.11 Various buses are labeled as bus system 1104 .

[0214] The third memory 1103 in the embodiment of the present application is used to store various types of data to support the operation of the second network device 1100. Examples of such data include: any computer program used to operate on the second network device 1100.

[0215] The method disclosed in the above embodiment of the present application can be applied to the third processor 1102, or implemented by the third processor 1102. The third processor 1102 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of the hardware in the third processor 1102 or an instruction in the form of software. The above-mentioned third processor 1102 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The third processor 1102 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the third memory 1103, and the third processor 1102 reads the information in the third memory 1103 and completes the steps of the above method in combination with its hardware.

[0216] In an exemplary embodiment, the second network device 1100 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[0217] It can be understood that the memory (first memory 903, second memory 1003, third memory 1103) of the embodiment of the present application can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a ferromagnetic random access memory, a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0218] In an exemplary embodiment, the embodiment of the present application further provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, for example, including a first memory 903 storing a computer program, and the computer program can be executed by the first processor 902 of the terminal 900 to complete the steps of the aforementioned terminal side method. For another example, a second memory 1003 storing a computer program is included, and the computer program can be executed by the second processor 1002 of the first network device 1000 to complete the steps of the aforementioned first network device side method. For another example, a third memory 1103 storing a computer program is included, and the computer program can be executed by the third processor 1102 of the second network device 1100 to complete the steps of the aforementioned second network device side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, FlashMemory, magnetic surface memory, optical disk, or CD-ROM.

[0219] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0220] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0221] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0222] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. A communication method, characterized in that: Applied to terminals, including: receiving a first synchronization signal block SSB on a first carrier and acquiring first information; the first information represents configuration information for the terminal to access the first carrier and at least one second carrier; According to the frequency position of the reference point A determined based on the first SSB and the first information, the position of the first carrier and the position of each second carrier in the at least one second carrier are determined.

2. The method according to claim 1, characterized in that: The first carrier and any second carrier belong to different frequency bands.

3. The method according to claim 1, characterized in that The first information represents a physical resource block (PRB) offset between the carrier and the reference point A; and obtaining the first information on the first carrier includes: A first physical downlink shared channel PDSCH and at least one second PDSCH are received on the first carrier; the first PDSCH is used to carry a first system information block SIB1 of the first carrier; each second PDSCH is used to carry a second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same control resource set CORESET on the first carrier; the SIB1 carries indication information of a PRB offset of the corresponding carrier; The first SIB1 is demodulated to obtain a PRB offset between the first carrier and reference point A, and each second SIB1 is demodulated to obtain a PRB offset between each second carrier in the at least one second carrier and reference point A.

4. The method according to claim 3, characterized in that Before receiving the first PDSCH and the at least one second PDSCH on the first carrier, the method further includes: A first physical downlink control channel PDCCH sent by the first carrier is blindly detected based on the CORESET; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

5. The method according to claim 3, characterized in that: The PRB offset indication information carried in SIB1 includes at least one of the following: The PRB offset between the corresponding carrier and reference point A; A PRB offset between the second carrier and a frequency reference point; the frequency reference point represents the highest frequency of the initial bandwidth part BWP of the first carrier or the subcarrier with the largest index value of the first carrier; A PRB offset between the first carrier and a frequency reference value, and a PRB offset between the second carrier and the frequency reference value; the frequency reference value is predefined or SIB1 configured.

6. The method according to claim 3, characterized in that: The resource block RB offset of the first SSB relative to the reference point A is only indicated in the first SIB1.

7. The method according to claim 1, characterized in that The method further comprises: A synchronization signal SS is received on the second carrier.

8. A communication method, characterized in that: Applied to a first network device, comprising: A first SSB and first information are sent via a first carrier; the first information represents configuration information for a terminal to access the first carrier and at least one second carrier.

9. The method according to claim 8, characterized in that The first information represents a PRB offset between the carrier and the reference point A; and sending the first information through the first carrier includes: A first PDSCH and at least one second PDSCH are sent via the first carrier; wherein, The first PDSCH is used to carry the first SIB1 of the first carrier; each second PDSCH is used to carry the second SIB1 of each second carrier in the at least one second carrier; the first PDSCH and the at least one second PDSCH are associated with the same CORESET on the first carrier; the SIB1 carries indication information of the PRB offset of the corresponding carrier.

10. The method according to claim 9, characterized in that Sending the first information through the first carrier also includes: A first PDCCH is sent through the first carrier; the first PDCCH is used to schedule the first PDSCH and the at least one second PDSCH.

11. A communication method, characterized in that: Applied to the second network device, comprising: SS is sent via a second carrier; wherein, Configuration information used by the terminal to access the second carrier is sent by the first carrier.

12. A communication device, characterized in that: include: A first receiving unit, configured to receive a first SSB on a first carrier and obtain first information; The first information represents configuration information used by the terminal to access the first carrier and at least one second carrier; A determination unit is used to determine the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

13. A communication device, characterized in that: include: A first sending unit, configured to send a first SSB and first information through a first carrier; The first information represents configuration information used by the terminal to access the first carrier and at least one second carrier.

14. A communication device, characterized in that: include: The second sending unit is used to send the SS through the second carrier; wherein, Configuration information used by the terminal to access the second carrier is sent by the first carrier.

15. A terminal, characterized in that: include: A first processor and a first communication interface; wherein, The first communication interface is used to receive a first SSB on a first carrier and obtain first information; the first information represents configuration information for the terminal to access the first carrier and at least one second carrier; The first processor is used to determine the position of the first carrier and the position of each second carrier in the at least one second carrier according to the frequency position of the reference point A determined based on the first SSB and the first information.

16. A first network device, characterized in that: include: A second processor and a second communication interface; wherein, The second communication interface is used to send the first SSB and the first information through the first carrier; The first information represents configuration information used by the terminal to access the first carrier and at least one second carrier.

17. A second network device, characterized in that: include: A third processor and a third communication interface; wherein, The third communication interface is used to send SS through the second carrier; wherein, Configuration information used by the terminal to access the second carrier is sent by the first carrier.

18. A terminal, characterized in that: include: a first processor and a first memory for storing a computer program executable on the processor, Wherein, when the first processor is used to run the computer program, the steps of the method described in any one of claims 1 to 7 are executed.

19. A first network device, characterized in that: include: a second processor and a second memory for storing a computer program executable on the processor, Wherein, when the second processor is used to run the computer program, the steps of the method described in any one of claims 8 to 10 are executed.

20. A second network device, characterized in that: include: a third processor and a third memory for storing a computer program executable on the processor, Wherein, the third processor is used to execute the steps of the method according to claim 11 when running the computer program.

21. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 11 are implemented.

Images