CN116996982A

CN116996982A - Communication method and device

Info

Publication number: CN116996982A
Application number: CN202210434173.9A
Authority: CN
Inventors: 张阳阳; 余政; 刘江华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2023-11-03

Abstract

The application provides a communication method and a communication device, which are used for acquiring a broadcast channel by terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel. In the method, the terminal device receives a first SSB portion of a first SSB on a first resource. The first resource is a partial resource of the resources used by the first SSB. The first information within the SSB burst window where the first SSB is located is associated with the same SSB index as the first SSB portion. The resources occupied by the first information and the first resources have the following relation: the time domain resource positions are different; the frequency domain resource locations are the same or the frequency domain resource centers are the same. The frequency range occupied by the first resource is not greater than the maximum processing bandwidth of the terminal device. The frequency range occupied by the first SSB is greater than the maximum processing bandwidth of the terminal device. By the method, the terminal equipment with the maximum processing bandwidth smaller than the bandwidth of the broadcast channel can acquire the physical broadcast channel, the synchronous signal, the main information block and the like.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

After the terminal equipment is started, the downlink time-frequency synchronization is obtained through receiving a synchronization signal block (SS/PBCH block, SSB). Currently, SSB occupies 240 subcarriers in the frequency domain, that is, occupies a transmission bandwidth of 20 Resource Blocks (RBs). For example, for a subcarrier spacing of 30kHz, the SSB occupies a frequency width of 7.2MHz. Therefore, in order to receive a successful SSB at one time, the maximum processing bandwidth of the terminal device needs to be greater than or equal to the frequency domain width occupied by the SSB. For terminal devices with a maximum processing bandwidth smaller than the frequency domain width occupied by the SSB, for example, terminal devices with limited bandwidth, a series of problems may be caused if the current SSB configuration is adopted due to the smaller bandwidth. For example, since the maximum processing bandwidth of the terminal device is relatively small, the terminal device cannot completely receive the SSB. How to acquire the broadcast channel for the terminal device with the maximum processing bandwidth smaller than the maximum frequency domain width occupied by the SSB is a technical problem to be solved.

Disclosure of Invention

The application provides a communication method and a communication device, which are used for obtaining a broadcast channel and the like by terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel.

In the embodiment of the present application, the "processing bandwidth" may also be referred to as a transmission bandwidth, a channel bandwidth, a frequency domain range, a frequency domain bandwidth, a number of resource blocks, etc., so that the maximum processing bandwidth of the terminal device may be understood as a maximum transmission bandwidth of the terminal device or a supported maximum transmission bandwidth or a maximum channel bandwidth or a maximum frequency domain range or a maximum frequency domain bandwidth or a maximum number of resource blocks or a maximum number of resource elements or a maximum number of subcarriers, etc. For example, the maximum processing bandwidth of the terminal device is 5MHz, and it is understood that the maximum processing bandwidth of the terminal device is 11 RBs or 12 RBs, and it is also understood that the maximum processing bandwidth of the terminal device is 121 subcarriers or 144 subcarriers.

In a first aspect, the present application provides a communication method, which is applicable to a terminal device. The execution subject of the method may be a terminal device, or may be a chip or a circuit. The method comprises the following steps: the terminal equipment receives the first SSB part on the first resource, and acquires one or more of a physical broadcast channel, a synchronous signal and a main information block according to the first SSB part. Wherein the first resource is part of the resources used by the first SSB. Wherein the first SSB includes a first SSB portion and a second SSB portion, the first SSB being one SSB within one SSB burst (burst) window; wherein the first information within the SSB burst window associates the same SSB index with the first SSB portion; the time domain resource position of the resource used for the first information transmission is different from the time domain resource position of the first resource; the frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource; the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment; the sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device.

By the method provided by the embodiment of the application, the terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the physical broadcast channel, the synchronous signal, the main information block and the like through the first SSB part, so that the terminal equipment can perform cell search, time-frequency synchronization and the like according to the synchronous signal, the main information block and the like, and can also perform radio resource management (radio resource management, RRM), measurement beam selection, acquisition of bandwidth part (BWP) information, acquisition of neighbor cell information, completion of initial random access and the like according to the physical broadcast channel.

In this way, the first information is included in the SSB burst window, so that the terminal device can obtain information (i.e. the second SSB portion) which is not received in the SSB (or obtain the PBCH) according to the first information, so that the SSB can be determined according to the received first SSB portion and the first information, and successful demodulation and decoding of the SSB by the terminal device are facilitated. In addition, the first SSB part and the first information are mapped in the capacity range of the terminal equipment, and the terminal equipment is not required to carry out frequency hopping reception on SSB resources exceeding the capacity range of the terminal equipment, so that the time delay, the power consumption and the performance loss of frequency hopping can be reduced.

In addition, the format of the SSB is not changed in the embodiment of the application, so that the terminal equipment with different maximum processing bandwidths can share the SSB.

In one possible design, the terminal device may obtain one or more of a physical broadcast channel, a synchronization signal, and a master information block according to the first SSB portion and the first information.

In one possible design, the terminal device may determine the first SSB according to the first SSB portion and the first information, and perform cell search and time-frequency synchronization according to the first SSB. By the design, the terminal equipment can acquire the information which is not acquired in the first SSB through the first information, so that the first SSB can be determined according to the received part (namely the first SSB part) in the first SSB and the first information, and successful demodulation and decoding of the SSB by the terminal equipment are facilitated.

In one possible design, the terminal device may obtain one or more of a physical broadcast channel, a synchronization signal, and a master information block only according to the first SSB portion in the SSB burst window.

In one possible design, the first information and the second SSB portion include the same information, including: the first information and the second SSB section include the same partial information or the same total information.

In one possible design, the first information corresponds to two time-domain units.

In one possible design, the first SSB portion includes a primary synchronization signal (primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS), a first physical broadcast channel (physical broadcast channel, PBCH) portion, and a second PBCH portion, the second SSB portion includes a third PBCH portion and a fourth PBCH portion, the first information includes first and second sub-information, wherein the first and third PBCH portions include the same information, and the second and fourth PBCH portions include the same information.

Wherein the PSS corresponds to a first time domain unit, the first PBCH portion corresponds to a second time domain unit, the SSS corresponds to a third time domain unit, the second PBCH portion corresponds to a fourth time domain unit, the first sub-information corresponds to a fifth time domain unit, and the second sub-information corresponds to a sixth time domain unit. The third and fourth PBCH parts correspond to the second, third and fourth time domain units.

According to the design, the first information is sent in the fifth time domain unit and the sixth time domain unit, so that the terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the information of the first SSB by acquiring the information occupying the first time domain unit to the sixth time domain unit, or acquire one or more of a physical broadcast channel, a synchronous signal and a main information block.

In one possible design, the frequency domain resources of the third PBCH part and the frequency domain resources of the PSS do not overlap; and/or, the frequency domain resource of the fourth PBCH part and the frequency domain resource of the PSS do not overlap.

In one possible design, the first through fourth time domain units are consecutive time domain symbols, and the fifth and sixth time domain units are consecutive or non-consecutive time domain symbols. The flexibility of the transmission position of the first information can be improved through the design.

In one possible design, the first time domain unit to the sixth time domain unit belong to the same time slot, or the first time domain unit to the sixth time domain unit belong to different time slots. The flexibility of the transmission position of the first information can be improved through the design.

In one possible design, the locations of the first to fourth time domain units are predefined; the method further comprises the steps of: the terminal equipment acquires indication information, wherein the indication information is used for determining the positions of the fifth time domain unit and the sixth time domain unit. By the method, the terminal equipment can determine the time domain position for receiving the first information, and is helpful for acquiring the information of the first SSB.

In one possible design, the indication information is further used to determine positions of a seventh time domain unit and an eighth time domain unit corresponding to the second information; the second information and the fourth SSB portion include the same information, the third SSB portion and the fourth SSB portion are configured to determine a second SSB, the second information and the time domain resources corresponding to the second SSB are different, the time domain resources mapped by the second SSB are located after the time domain resources mapped by the first SSB, and the time domain resources corresponding to the second SSB are predefined.

In one possible design, the indication information is specifically used to determine: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit and the eighth time domain unit are located after the time domain resource corresponding to the second SSB.

Alternatively, the indication information is specifically used to determine: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit and the eighth time domain unit are located before the time domain resource corresponding to the first SSB.

Alternatively, the indication information is specifically used to determine: the fifth time domain unit and the sixth time domain unit are located before the time domain resource corresponding to the first SSB, and the seventh time domain unit and the eighth time domain unit are located after the time domain resource corresponding to the second SSB.

Alternatively, the indication information is specifically used to determine: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit, and the eighth time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB.

Alternatively, the indication information is specifically used to determine: the fifth time domain unit and the sixth time domain unit are located before the time domain resources corresponding to the first SSB, and the seventh time domain unit and the eighth time domain unit are located between the time domain resources corresponding to the first SSB and the time domain resources corresponding to the second SSB.

Alternatively, the indication information is specifically used to determine: the fifth time domain unit and the sixth time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB, and the seventh time domain unit and the eighth time domain unit are located after the time domain resource corresponding to the second SSB.

Alternatively, the indication information is specifically used to determine: the fifth time domain unit is located before the time domain resource corresponding to the first SSB, the sixth time domain unit and the seventh time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB, and the eighth time domain unit is located after the time domain resource corresponding to the second SSB.

The flexible deployment of the time domain position of the first information is facilitated by the design, so that terminal equipment with different performance requirements or capabilities can be adapted. For terminal equipment with low performance requirements, only a part of PBCH information may be needed to obtain the SSB. In this case, the above-described indication information may be used for determining: the fifth time domain unit is located before the time domain resource corresponding to the first SSB, the sixth time domain unit and the seventh time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB, and the eighth time domain unit is located after the time domain resource corresponding to the second SSB. At this time, the terminal device may only need to use the information of the fifth time domain unit occupied by the first information when acquiring the first SSB. And a fifth time domain unit occupied by the first information is arranged in front of the first SSB, so that the terminal equipment can obtain PBCH information quickly, further obtain SSB (or obtain PBCH) quickly, and complete time-frequency synchronization and the like. For terminal equipment with higher performance requirements, all PBCHs of the first SSB need to be obtained to complete acquisition of the SSB. In this case, the above-described indication information may be used for a deployment scheme of the determined time-domain position of the other first information. By the method provided by the embodiment of the application, different terminal equipment can negotiate the deployment position of the time domain unit of the first information according to the own capability and the network equipment, so as to adapt to the own performance requirement.

In one possible design, the indication information is predefined or the indication information is from a network device.

In one possible design, the first information corresponds to three time-domain units.

In one possible design, the first SSB portion includes a PSS, an SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion includes a fifth PBCH portion, a sixth PBCH portion, and a seventh PBCH portion; the first information comprises third sub-information, fourth sub-information and fifth sub-information, wherein the third sub-information is identical to the fifth PBCH part, the fourth sub-information is identical to the sixth PBCH part, and the fifth sub-information is identical to the seventh PBCH part;

wherein the PSS corresponds to a first time domain unit, the first PBCH part corresponds to a second time domain unit, the SSS corresponds to a third time domain unit, the second PBCH part corresponds to a fourth time domain unit, the third sub-information corresponds to a fifth time domain unit, the fourth sub-information corresponds to a sixth time domain unit, and the fifth sub-information is mapped to a ninth time domain unit;

the fifth, sixth and seventh PBCH parts correspond to the second, third and fourth time domain units.

The above design sends the first information in the fifth time domain unit, the sixth time domain unit and the ninth time domain unit, so that the terminal device with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the first SSB by acquiring the information occupying the first time domain unit, the sixth time domain unit and the ninth time domain unit, or acquire one or more of the physical broadcast channel, the synchronization signal and the main information block.

In one possible design, the first information is mapped by the second SSB portion according to a first order, the first order being: the method comprises the steps of firstly, according to the sequence from the small frequency index to the large frequency index, and then, according to the sequence from the small time index to the large time index.

Through the design, the existing resource mapping rule can be used, the design is simpler, and meanwhile, the compatibility with the existing resource mapping rule of the SSB can be ensured to a certain extent.

In one possible design, the first information is randomly mapped by information of the second SSB portion in the time and/or frequency domain.

In one possible design, the first information is obtained by: and ordering the information corresponding to the same time domain units in the second SSB part according to the first order to obtain the ordered information of each time domain unit. The first order is the order of carrier indexes from small to large, or the first order is the order of carrier indexes from large to small. And ordering the information of each time domain unit after the ordering according to the second order to obtain the first information. The second order is the order of the time domain unit indexes from small to large, or the second order is the order of the time domain unit indexes from large to small.

In one possible design, the first information is obtained by: and ordering the information corresponding to the first carrier index range and the information corresponding to the second carrier index range in the second SSB part according to a third order respectively to obtain the ordered information corresponding to the first carrier index range and the ordered information corresponding to the second carrier index range. The third order is the order of the time domain unit indexes from small to large, or the third order is the order of the time domain unit indexes from large to small.

And ordering the ordered information corresponding to the first carrier index range and the ordered information corresponding to the second carrier index range according to a fourth order to obtain first information, wherein the fourth order is that the ordered information corresponding to the first carrier index range is before the ordered information corresponding to the second carrier index range, the ordered information corresponding to the second carrier index range is after the ordered information corresponding to the second carrier index range, or the fourth order is that the ordered information corresponding to the second carrier index range is before the ordered information corresponding to the first carrier index range is after the ordered information corresponding to the first carrier index range.

In one possible design, the first information corresponds to a fifth time domain unit and a sixth time domain unit, and specifically includes:

the first information part in the first information corresponds to a fifth time domain unit, the second information part in the first information corresponds to a sixth time domain unit, wherein the information corresponding to the first frequency range in the first information part and the second SSB part are the same, the information corresponding to the second frequency range in the second information part and the second SSB part are the same, and the first frequency range and the second frequency range are not overlapped;

Or the first information part in the first information corresponds to a fifth time domain unit and a sixth time domain unit, the second information part in the first information corresponds to the sixth time domain unit, wherein the information corresponding to the first frequency range in the first information part and the second SSB part is the same, the information corresponding to the second frequency range in the second information part and the second SSB part is the same, and the first frequency range and the second frequency range are not overlapped;

or, the first information part in the first information corresponds to a fifth time domain unit, the second information part in the first information corresponds to a fifth time domain unit and a sixth time domain unit, wherein the information corresponding to the first frequency range in the first information part and the second SSB part is the same, the information corresponding to the second frequency range in the second information part and the second SSB part is the same, and the first frequency range and the second frequency range are not overlapped.

Through the design, the information with the same frequency range or the same occupied subcarrier index can be mapped on the same time domain unit, so that the terminal equipment is facilitated to demodulate and decode the first information, and meanwhile, the terminal equipment is facilitated to quickly recover the information included in the first SSB by combining the first SSB part and the first information.

In one possible design, the first information corresponds to a fifth time domain unit, a sixth time domain unit, and a ninth time domain unit, and specifically includes: the first information part in the first information corresponds to a fifth time domain unit and a sixth time domain unit, the second information part in the first information corresponds to a sixth time domain unit and a ninth time domain unit, wherein the information corresponding to the first frequency range in the first information part and the second SSB part is the same, the information corresponding to the second frequency range in the second information part and the second SSB part is the same, and the first frequency range and the second frequency range are not overlapped.

In one possible design, the frequency domain resources of any one of the fifth PBCH part, the sixth PBCH part, and the seventh PBCH part and the frequency domain resources of the first PSS do not overlap.

In one possible design, the first through fourth time domain units are consecutive time domain symbols, and the fifth, sixth, and ninth time domain units are consecutive or non-consecutive time domain symbols. The flexibility of the transmission position of the first information can be improved through the design.

In one possible design, the first time domain unit, the second time domain unit, the third time domain unit, the fourth time domain unit, the fifth time domain unit, the sixth time domain unit, and the ninth time domain unit belong to the same time slot. Alternatively, the first time domain unit, the second time domain unit, the third time domain unit, the fourth time domain unit, the fifth time domain unit, the sixth time domain unit, and the ninth time domain unit belong to different time slots. The flexibility of the transmission position of the first information can be improved through the design.

In one possible design, the period of the first information is greater than or equal to the period of the first SSB. The flexibility of the first information can be improved through the design.

In one possible design, the maximum processing bandwidth of the terminal device is 11 RBs or 12 RBs.

In a second aspect, the present application provides a communication method, which is applicable to a terminal device. The execution subject of the method may be a terminal device, or may be a chip or a circuit. The method comprises the following steps: and the terminal equipment receives the first SSB and acquires one or more of a physical broadcast channel, a synchronous signal and a main information block according to the first SSB. The frequency range of the first SSB is less than or equal to the maximum processing bandwidth of the terminal device.

Since the frequency range of the SSB is 20 RBs (the first SSB in the method according to the first aspect) at present, and the maximum processing bandwidth of the terminal device is smaller than 20 RBs, the terminal device cannot receive all the information of the SSB when receiving the SSB. In the second aspect of the present application, the frequency range of the SSB is smaller than or equal to the maximum processing bandwidth of the terminal device, so that the terminal device with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire one or more of the physical broadcast channel, the synchronization signal and the main information block, which is helpful for the terminal device to perform cell search, time-frequency synchronization, RRM, measurement beam selection, acquire BWP information, acquire neighbor information, complete initial random access, and the like, and is also helpful for successful demodulation and decoding of the SSB. And the second SSB is mapped in the capacity range of the terminal equipment, and the terminal equipment is not required to carry out frequency hopping to receive SSB resources exceeding the capacity range of the terminal equipment, so that the time delay, the power consumption and the performance loss of the frequency hopping band can be reduced. In addition, the frequency range of the SSB sent by the network device is within the capability range of the terminal device, so that additional resource consumption of the network device can be avoided or reduced.

In one possible design, the maximum processing bandwidth of the terminal device is 11 resource blocks RB or 12 RBs.

In one possible design, the first SSB corresponds to 6 time-domain units.

In one possible design, the first SSB includes PSS, SSS, a first PBCH portion, a second PBCH portion, a third PBCH portion, and a fourth PBCH portion; the PSS corresponds to a first time domain unit, the first PBCH part corresponds to a second time domain unit, the SSS corresponds to a third time domain unit, the second PBCH part corresponds to a fourth time domain unit, the third PBCH part corresponds to a fifth time domain unit, and the fourth PBCH part corresponds to a sixth time domain unit.

The above design helps the terminal device successfully demodulate and decode the SSB by sending the first SSB in six time domain units, so that the terminal device with the maximum processing bandwidth smaller than 20 RBs can acquire the SSB (or acquire the PBCH).

In one possible design, the frequency domain resources of each of the first PBCH part, the second PBCH part, the third PBCH part, and the fourth PBCH part may overlap with the frequency domain resources of the PSS in whole or in part.

In one possible design, the first time domain unit to the sixth time domain unit are consecutive time domain units; alternatively, the first to sixth time domain units are discontinuous time domain units. The flexibility of transmitting the first SSB can be improved through the design.

In one possible design, the first time domain unit to the sixth time domain unit belong to the same time slot; alternatively, the first time domain unit to the sixth time domain unit belong to different time slots. The flexibility of transmitting the first SSB can be improved through the design.

In one possible design, the locations of the first to fourth time domain units are predefined; the method further comprises the steps of: the terminal equipment acquires indication information, wherein the indication information is used for determining the positions of the fifth time domain unit and the sixth time domain unit. By the method, the terminal equipment can determine the time domain positions of the fifth time domain unit and the sixth time domain unit, and is beneficial to acquiring the information of the first SSB.

In one possible design, the indication information is further used to determine positions of a seventh time domain unit and an eighth time domain unit corresponding to the second SSB; the seventh time domain unit and the eighth time domain unit are two time domain units in 6 time domain units corresponding to a second SSB, the frequency range of the second SSB is smaller than or equal to the maximum processing bandwidth of the terminal device, 4 time domain units except the seventh time domain unit and the eighth time domain unit in 6 symbols corresponding to the second SSB are located after the first time domain unit to the fourth time domain unit, and the positions of the 4 time domain units are predefined.

In one possible design, the indication information is specifically used to determine: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit and the eighth time domain unit are positioned behind the time domain resource corresponding to the third SSB part;

alternatively, the indication information is specifically used to determine: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit and the eighth time domain unit are positioned before the time domain resource corresponding to the first SSB part;

alternatively, the indication information is specifically used to determine: the fifth time domain unit and the sixth time domain unit are positioned before the time domain resource corresponding to the first SSB part, and the seventh time domain unit and the eighth time domain unit are positioned after the time domain resource corresponding to the third SSB part;

alternatively, the indication information is specifically used to determine: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit and the eighth time domain unit are positioned between the time domain resource corresponding to the first SSB part and the time domain resource corresponding to the third SSB part;

alternatively, the indication information is specifically used to determine: the fifth time domain unit and the sixth time domain unit are positioned before the time domain resources corresponding to the first SSB part, and the seventh time domain unit and the eighth time domain unit are positioned between the time domain resources corresponding to the first SSB part and the time domain resources corresponding to the third SSB part;

Alternatively, the indication information is specifically used to determine: the fifth time domain unit and the sixth time domain unit are positioned between the time domain resource corresponding to the first SSB part and the time domain resource corresponding to the third SSB part, and the seventh time domain unit and the eighth time domain unit are positioned behind the time domain resource corresponding to the third SSB part;

alternatively, the indication information is specifically used to determine: the fifth time domain unit is located before the time domain resource corresponding to the first SSB part, the sixth time domain unit is located after the time domain resource corresponding to the first SSB part, the seventh time domain unit is located before the time domain resource corresponding to the third SSB part, and the eighth time domain unit is located after the time domain resource corresponding to the third SSB part.

In one possible design, the first SSB corresponds to 7 time-domain units.

In one possible design, the first SSB includes PSS, SSS, a first PBCH portion, a second PBCH portion, a third PBCH portion, a fourth PBCH portion, and a fifth PBCH portion; the PSS corresponds to a first time domain unit, the first PBCH part corresponds to a second time domain unit, the SSS corresponds to a third time domain unit, the second PBCH part corresponds to a fourth time domain unit, the third PBCH part corresponds to a fifth time domain unit, the fourth PBCH part corresponds to a sixth time domain unit, and the fifth PBCH part corresponds to a ninth time domain unit.

The above design helps terminal equipment successfully demodulate and decode SSB by sending the first SSB in seven time domain units, so that the terminal equipment with maximum processing bandwidth smaller than 20 RBs can acquire SSB (or acquire PBCH).

In one possible design, the frequency domain resource of each of the first PBCH part to the fifth PBCH part overlaps with the frequency domain resource of the PSS in whole or in part.

In one possible design, the first time domain unit, the second time domain unit, the third time domain unit, the fourth time domain unit, the fifth time domain unit, the sixth time domain unit, and the ninth time domain unit are consecutive time domain symbols; alternatively, the first time domain unit, the second time domain unit, the third time domain unit, the fourth time domain unit, the fifth time domain unit, the sixth time domain unit, and the ninth time domain unit are discontinuous time domain symbols. The flexibility of transmitting the first SSB can be improved through the design.

In one possible design, the first time domain unit, the second time domain unit, the third time domain unit, the fourth time domain unit, the fifth time domain unit, the sixth time domain unit, and the ninth time domain unit belong to the same time slot; alternatively, the first time domain unit, the second time domain unit, the third time domain unit, the fourth time domain unit, the fifth time domain unit, the sixth time domain unit, and the ninth time domain unit belong to different time slots. The flexibility of transmitting the first SSB can be improved through the design.

In a third aspect, the present application provides a communication method, the method being applicable to a network device. The method may be executed by a network device, or may be executed by a chip or a circuit. The method comprises the following steps: the network device sends a first SSB. Wherein the first SSB includes a first SSB portion and a second SSB portion, the first SSB portion being transmitted on a first resource, the first resource being part of a resource used by the first SSB, the first SSB being an SSB within an SSB burst window; wherein the first information within the SSB burst window associates the same SSB index with the first SSB portion; the time domain resource position of the resource used for the first information transmission is different from the time domain resource position of the first resource; the frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource; the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment; the sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device.

By the method provided by the embodiment of the application, the terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the physical broadcast channel, the synchronous signal, the main information block and the like through the first SSB part, so that the terminal equipment can perform cell search, time-frequency synchronization and the like according to the synchronous signal, the main information block and the like, and can also perform RRM, measurement beam selection, BWP information acquisition, neighbor cell information acquisition, initial random access completion and the like according to the physical broadcast channel.

In this way, the first information is included in the SSB burst window, so that the terminal device can obtain information (i.e. the second SSB portion) which is not received in the SSB (or obtain the PBCH) according to the first information, so that the SSB can be determined according to the received first SSB portion and the first information, and successful demodulation and decoding of the SSB by the terminal device are facilitated. In addition, the first SSB part and the first information are mapped in the capacity range of the terminal equipment, and the terminal equipment is not required to carry out frequency hopping reception on SSB resources exceeding the capacity range of the terminal equipment, so that the time delay, the power consumption and the performance loss of frequency hopping can be reduced. The SSB (or the PBCH) is acquired, and the format of the SSB is not changed in the embodiment of the application, so that the terminal equipment with different maximum processing bandwidths can share the SSB.

In one possible design, the first SSB portion includes a PSS, an SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion includes a third PBCH portion and a fourth PBCH portion, the first information includes first sub-information and second sub-information, the first sub-information and the third PBCH portion include the same information, and the second sub-information and the fourth PBCH portion include the same information;

wherein the PSS corresponds to a first time domain unit, the first PBCH part corresponds to a second time domain unit, the SSS corresponds to a third time domain unit, the second PBCH part corresponds to a fourth time domain unit, the first sub-information corresponds to a fifth time domain unit, and the second sub-information corresponds to a sixth time domain unit;

the third and fourth PBCH parts correspond to the second, third and fourth time domain units.

According to the design, the first information is sent in the fifth time domain unit and the sixth time domain unit, so that the terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the information of the first SSB by acquiring the information occupying the first time domain unit to the sixth time domain unit, or acquire one or more of a physical broadcast channel, a synchronous signal and a main information block. In one possible design, the frequency domain resources of the third PBCH part and the frequency domain resources of the PSS do not overlap; and/or, the frequency domain resource of the fourth PBCH part and the frequency domain resource of the PSS do not overlap.

In one possible design, the locations of the first to fourth time domain units are predefined; the method further comprises the steps of: the network device determines a fifth time domain unit and a sixth time domain unit according to indication information, wherein the indication information is used for determining positions of the fifth time domain unit and the sixth time domain unit. By the method, the network equipment can determine the time domain position for transmitting the first information, and the terminal equipment is facilitated to acquire the information of the first SSB.

In one possible design, the indication information is predefined or determined by the network device.

In one possible design, the method further comprises: the network device sends indication information to the terminal device. Through the design, the time domain position understanding of the first information by the network equipment and the terminal equipment can be consistent, so that the terminal equipment is facilitated to acquire the information of the first SSB.

The above design sends the first information in the fifth time domain unit, the sixth time domain unit and the ninth time domain unit, so that the terminal device with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the first SSB by acquiring the information occupying the first time domain unit, the sixth time domain unit and the ninth time domain unit, or acquire one or more of the physical broadcast channel, the synchronization signal and the main information block. In one possible design, the first information is mapped by the second SSB portion according to a first order, the first order being: the method comprises the steps of firstly, according to the sequence from the small frequency index to the large frequency index, and then, according to the sequence from the small time index to the large time index.

In one possible design, the first information is randomly mapped by the second SSB portion in the time and/or frequency domain.

In one possible design, the first information is obtained by:

and ordering the information corresponding to the first carrier index range and the information corresponding to the second carrier index range in the second SSB part according to a third order respectively to obtain the ordered information corresponding to the first carrier index range and the ordered information corresponding to the second carrier index range. The third order is the order of the time domain unit indexes from small to large, or the third order is the order of the time domain unit indexes from large to small.

And ordering the ordered information corresponding to the first carrier index range and the ordered information corresponding to the second carrier index range according to a fourth order to obtain the first information. The fourth order is that the ordered information corresponding to the first carrier index range is before and the ordered information corresponding to the second carrier index range is after. Or the fourth order is that the ordered information corresponding to the second carrier index range is before and the ordered information corresponding to the first carrier index range is after.

the first information part in the first information corresponds to a fifth time domain unit and the second information part in the first information corresponds to a sixth time domain unit. Wherein the information corresponding to the first frequency range in the first information part and the second SSB part are the same, the information corresponding to the second frequency range in the second information part and the second SSB part are the same, and the first frequency range and the second frequency range are not overlapped;

In a fourth aspect, the present application provides a communication method, the method being suitable for a network device. The method may be executed by a network device, or may be executed by a chip or a circuit. The method comprises the following steps: the network device determines a first SSB and sends the first SSB to the terminal device, the frequency range of the first SSB being less than or equal to the maximum processing bandwidth of the terminal device.

Since the frequency range of the SSB is 20 RBs (the first SSB in the method according to the first aspect) at present, and the maximum processing bandwidth of the terminal device is smaller than 20 RBs, the terminal device cannot receive all the information of the SSB when receiving the SSB. In the fourth aspect of the present application, the frequency range of the SSB is smaller than or equal to the maximum processing bandwidth of the terminal device, so that the terminal device with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the SSB (or acquire the PBCH), which is helpful for the terminal device to successfully demodulate and decode the SSB. And the second SSB is mapped in the capacity range of the terminal equipment, and the terminal equipment is not required to carry out frequency hopping to receive SSB resources exceeding the capacity range of the terminal equipment, so that the time delay, the power consumption and the performance loss of the frequency hopping band can be reduced. In addition, the frequency range of the SSB sent by the network device is within the capability range of the terminal device, so that additional resource consumption of the network device can be avoided or reduced.

In one possible design, the first SSB corresponds to 6 time-domain units.

In one possible design, the locations of the first to fourth time domain units are predefined; the method further comprises the steps of: the network device determines a fifth time domain unit and a sixth time domain unit according to indication information, wherein the indication information is used for determining positions of the fifth time domain unit and the sixth time domain unit. By the method, the network device can determine the time domain positions of the fifth time domain unit and the sixth time domain unit, and the terminal device is facilitated to acquire the information of the first SSB.

In one possible design, the method further comprises: the network device sends indication information to the terminal device. Through the design, the understanding of the network equipment and the terminal equipment to the fifth time domain unit and the sixth time domain unit is consistent, and the terminal equipment is facilitated to receive the first SSB.

In a fifth aspect, the present application provides a communication method, which is applicable to a terminal device. The execution subject of the method may be a terminal device, or may be a chip or a circuit. The method comprises the following steps: the terminal equipment acquires the indication information and receives the signal at the time domain position indicated by the indication information. The indication information is used for determining positions of a first time domain unit and a second time domain unit, the first time domain unit and the second time domain unit are used for determining a first SSB with a first group of time domain unit symbols, wherein the first group of time domain units comprises 4 time domain unit symbols, and the positions of the first group of time domain units are predefined.

In the embodiment of the application, the terminal equipment and the network equipment can transmit the SSB information at the corresponding symbol positions by definitely adding the positions of the symbols (namely the first time domain unit and the second time domain unit). Especially for terminal equipment with maximum processing bandwidth less than 20 RBs, the network equipment can send SSB information on the newly added symbol, and the terminal equipment can receive SSB information on the newly added symbol, so that the terminal equipment can acquire SSB (or acquire PBCH) complete information as much as possible, thereby facilitating successful demodulation and decoding of SSB by the terminal equipment, further facilitating rapid completion of processes such as cell search and random access by the terminal equipment, reducing time delay of accessing the terminal equipment into the network, and improving user experience of the terminal equipment. In addition, by reducing the time consumption of the terminal equipment in the processes of cell search, random access and the like, the power consumption of the terminal equipment can be further reduced, and the cruising ability of the terminal equipment can be prolonged.

In a possible design, the indication information is further used to determine the positions of a third time domain unit and a fourth time domain unit, the third time domain unit and the fourth time domain unit being used to determine the second SSB with a second set of time domain units, wherein the second set of time domain units comprises 4 time domain units, the positions of the second set of time domain units being predefined.

In one possible design, the indication information is specifically used to determine: the first time domain unit, the second time domain unit, the third time domain unit, and the fourth time domain unit are located after the second set of time domain units.

Alternatively, the indication information is specifically used to determine: the first time domain unit, the second time domain unit, the third time domain unit and the fourth time domain unit are located before the time domain resources corresponding to the first group of time domain units.

Alternatively, the indication information is specifically used to determine: the first time domain unit and the second time domain unit are located before the first set of time domain units, and the third time domain unit and the fourth time domain unit are located after the second set of time domain units.

Alternatively, the indication information is specifically used to determine: the first time domain unit, the second time domain unit, the third time domain unit, and the fourth time domain unit are located between the first set of time domain units and the second set of time domain units.

Alternatively, the indication information is specifically used to determine: the first time domain unit and the second time domain unit are located before the first set of time domain units, and the third time domain unit and the fourth time domain unit are located between the first set of time domain units and the second set of time domain units.

Alternatively, the indication information is specifically used to determine: the first time domain unit and the second time domain unit are located between the first set of time domain units and the second set of time domain units, and the third time domain unit and the fourth time domain unit are located after the second set of time domain units.

Alternatively, the indication information is specifically used to determine: the first time domain unit is located before the first set of time domain units, the second time domain unit and the third time domain unit are located between the first set of time domain units and the second set of time domain units, and the fourth time domain unit is located after the second set of time domain units.

In a sixth aspect, the present application provides a communication method, where the method is applicable to a network device. The method may be executed by a network device, or may be executed by a chip or a circuit. The method comprises the following steps: the network device obtains the indication information and transmits a signal at a time domain location indicated by the indication information. The indication information is used for determining positions of a first time domain unit and a second time domain unit, the first time domain unit and the second time domain unit are used for determining a first SSB with a first group of time domain unit symbols, wherein the first group of time domain units comprises 4 time domain unit symbols, and the positions of the first group of time domain units are predefined.

In a seventh aspect, the present application further provides a communication apparatus, where the apparatus is a terminal device or a chip in the terminal device. The communication device has the function of implementing any of the methods provided in the first aspect or the second aspect or the fifth aspect. The communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one possible design, the communication device includes: a processor configured to support the communication device to perform the corresponding functions of the terminal device in the method shown above. The communication device may also include a memory, which may be coupled to the processor, that holds the program instructions and data necessary for the communication device. Optionally, the communication apparatus further comprises an interface circuit for supporting communication between the communication apparatus and a device such as a network device.

For example, the communication device has a function of implementing the method provided in the first aspect described above. Interface circuitry, which may be used to: receiving a first SSB portion on a first resource, wherein the first resource is a portion of a resource used by the first SSB; the first SSB includes the first SSB portion and a second SSB portion, the first SSB is an SSB burstWindowOne SSB in; wherein the first information within the SSB burst window associates the same SSB index with the first SSB portion; the time domain resource position of the resource used for the first information transmission is different from the time domain resource position of the first resource; the frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource; the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment; the sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device. A processor, operable to: and acquiring one or more of a physical broadcast channel, a synchronous signal and a main information block according to the first SSB part.

As another example, the communication device has a function of implementing the method provided in the second aspect described above. Interface circuitry, which may be used to: receiving a first SSB, wherein the frequency range of the first SSB is smaller than or equal to the maximum processing bandwidth of the terminal equipment; a processor, operable to: and acquiring one or more of a physical broadcast channel, a synchronous signal and a main information block according to the first SSB.

As another example, the communication apparatus has a function of implementing the method provided in the fifth aspect described above. A processor, operable to: acquiring indication information; interface circuitry, which may be used to: the signal is received at a time domain location indicated by the indication information.

In a possible design, the communication device comprises corresponding functional modules for implementing the steps of the above method, respectively. The functions may be realized by hardware, or may be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the communication device includes a processing unit (or processing module) and a communication unit (or communication module), where the units may perform the corresponding functions in the above method examples, see in particular the description of the methods provided in the first aspect or the second aspect or the fifth aspect.

For example, the communication device has a function of implementing the method provided in the first aspect described above. A communication unit operable to: receiving a first SSB portion on a first resource, wherein the first resource is a portion of a resource used by the first SSB; the first SSB includes the first SSB portion and a second SSB portion, the first SSB being one SSB within one SSB burst window; wherein the first information within the SSB burst window associates the same SSB index with the first SSB portion; the time domain resource position of the resource used for the first information transmission is different from the time domain resource position of the first resource; the frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource; the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment; the sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device. A processing unit operable to: and acquiring one or more of a physical broadcast channel, a synchronous signal and a main information block at least according to the first SSB part in the SSB burst window.

As another example, the communication device has a function of implementing the method provided in the second aspect described above. A communication unit operable to: receiving a first SSB, wherein the frequency range of the first SSB is smaller than or equal to the maximum processing bandwidth of the terminal equipment; a processing unit operable to: and acquiring one or more of a physical broadcast channel, a synchronous signal and a main information block according to the first SSB.

As another example, the communication apparatus has a function of implementing the method provided in the fifth aspect described above. A processing unit operable to: acquiring indication information; a communication unit operable to: the signal is received at a time domain location indicated by the indication information.

In an eighth aspect, the present application further provides a communication apparatus, where the apparatus is a network device or a chip of the network device. The communication device has a function of implementing any of the methods provided in the third or fourth or sixth aspects described above. The communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one possible design, the communication device includes: and the interface circuit is used for supporting communication between the communication device and equipment such as terminal equipment. The communication device may also include a memory, which may be coupled to the processor, that holds the program instructions and data necessary for the communication device. Optionally, the communication apparatus further comprises a processor configured to support the communication apparatus to perform the respective functions of the network device in the above-indicated method.

For example, the communication apparatus has a function of implementing the method provided in the third aspect described above. Interface circuitry, which may be used to: transmitting a first SSB, the first SSB including the first SSB portion and a second SSB portion, the first SSB portion being transmitted on a first resource, the first resource being part of a resource used by the first SSB, the first SSB being one SSB within one SSB burst window; wherein the first information within the SSB burst window associates the same SSB index with the first SSB portion; the time domain resource position of the resource used for the first information transmission is different from the time domain resource position of the first resource; the frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource; the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment; the sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device.

For example, the communication device has a function of realizing the method provided in the fourth aspect described above. A processor, operable to: a processor, operable to: a first SSB is determined, the frequency range of the first SSB being less than or equal to a maximum processing bandwidth of the terminal device. Interface circuitry, which may be used to: and sending the first SSB to the terminal equipment.

For example, the communication device has a function of implementing the method provided in the sixth aspect described above. A processor, operable to: and acquiring indication information. The indication information is used for determining positions of a first time domain unit and a second time domain unit, the first time domain unit and the second time domain unit are used for determining a first SSB with a first group of time domain unit symbols, wherein the first group of time domain units comprises 4 time domain unit symbols, and the positions of the first group of time domain units are predefined. Interface circuitry, which may be used to: and transmitting a signal at the time domain position indicated by the indication information.

In a possible design, the communication device includes a processing unit (or processing module) and a communication unit (or processing unit) in a structure, where the units may perform the respective functions in the above method examples, see in particular the description in the method provided in the third aspect or the fourth aspect or the sixth aspect.

For example, the communication apparatus has a function of implementing the method provided in the third aspect described above. A processing unit operable to: and determining first information, wherein the first information and the second SSB part comprise the same information, the first SSB part and the second SSB part are used for determining the first SSB, and the time domain resources corresponding to the first information and the first SSB part are different. A communication unit operable to: the first SSB and the first information are sent to the terminal device.

For example, the communication device has a function of realizing the method provided in the fourth aspect described above. A processing unit operable to: a processing unit operable to: a first SSB is determined, the frequency range of the first SSB being less than or equal to a maximum processing bandwidth of the terminal device. A communication unit operable to: and sending the first SSB to the terminal equipment.

For example, the communication device has a function of implementing the method provided in the sixth aspect described above. A processing unit operable to: and acquiring indication information. The indication information is used for determining positions of a first time domain unit and a second time domain unit, the first time domain unit and the second time domain unit are used for determining a first SSB with a first group of time domain unit symbols, wherein the first group of time domain units comprises 4 time domain unit symbols, and the positions of the first group of time domain units are predefined. A communication unit operable to: and transmitting a signal at the time domain position indicated by the indication information.

In a ninth aspect, there is provided a communications device comprising a processor and interface circuitry for receiving signals from or transmitting signals to the processor from or transmitting signals to other communications devices than the communications device, the processor being operable to implement the method of the first or second or fifth aspects and any possible designs described above by logic circuitry or execution of code instructions.

In a tenth aspect, there is provided a communication device comprising a processor and interface circuitry for receiving signals from or transmitting signals to the processor from or transmitting signals to other communication devices than the communication device, the processor being operable to implement the method of the third or fourth or sixth aspects and any possible designs described above by logic circuitry or execution of code instructions.

In an eleventh aspect, there is provided a computer readable storage medium having stored therein a computer program or instructions which, when executed by a processor, implement the method of any one of the preceding aspects, through sixth aspects, and any possible design.

In a twelfth aspect, there is provided a computer program product storing instructions which, when executed by a processor, implement the method of any of the preceding aspects, the first aspect and any possible designs.

In a thirteenth aspect, a chip system is provided, the chip system comprising a processor and possibly a memory, for implementing the method of any of the foregoing first to sixth aspects and any possible designs. The chip system may be formed of a chip or may include a chip and other discrete devices.

In a fourteenth aspect, there is provided a communication system comprising an apparatus (e.g. a terminal device) according to the first aspect and an apparatus (e.g. a network device) according to the third aspect.

In a fifteenth aspect, there is provided a communication system comprising an apparatus (e.g. a terminal device) as described in the second aspect and an apparatus (e.g. a network device) as described in the fourth aspect.

In a sixteenth aspect, there is provided a communication system comprising an apparatus (e.g. a terminal device) according to the fifth aspect and an apparatus (e.g. a network device) according to the sixth aspect.

Drawings

FIG. 1 is a schematic diagram of the format of SSB in NR according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application;

FIG. 3 is a flow chart of a communication method according to an embodiment of the application;

FIG. 4 is a schematic diagram of a first SSB portion and a second SSB portion according to an embodiment of the application;

FIG. 5 is a schematic diagram illustrating a perforation according to an embodiment of the present application;

FIG. 6 is a schematic diagram illustrating another embodiment of the present application;

FIG. 7 is a schematic diagram illustrating another embodiment of the present application;

FIG. 8 is a schematic diagram of a format of first information according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a format of second information according to an embodiment of the present application;

FIG. 10 is a mapping diagram of an embodiment of the present application;

FIG. 11 is a mapping diagram of an embodiment of the present application;

FIG. 12 is a schematic diagram of a first frequency range and a second frequency range according to an embodiment of the present application;

FIG. 13 is a schematic diagram of another first frequency range and a second frequency range according to an embodiment of the present application;

FIG. 14 is a mapping diagram of an embodiment of the present application;

FIG. 15 is a mapping diagram of an embodiment of the present application;

FIG. 16A is a mapping diagram of an embodiment of the present application;

FIG. 16B is a mapping diagram of an embodiment of the present application;

FIG. 17 is a mapping diagram of an embodiment of the present application;

FIG. 18 is a schematic illustration of a cycle of an embodiment of the present application;

FIG. 19 is a flow chart of a communication method according to an embodiment of the application;

FIG. 20 is a schematic diagram of a SSB format according to an embodiment of the application;

FIG. 21 is a schematic diagram of a SSB format according to an embodiment of the application;

FIG. 22 is a schematic diagram of a format of an SSB according to an embodiment of the application;

FIG. 23 is a flow chart of a communication method according to an embodiment of the application;

FIG. 24 is a diagram illustrating the position of a new symbol according to an embodiment of the present application;

FIG. 25 is a schematic diagram of a position of another added symbol according to an embodiment of the application;

FIG. 26 is a schematic diagram of a position of another added symbol according to an embodiment of the application;

FIG. 27 is a diagram illustrating a position of a new symbol according to an embodiment of the present application;

FIG. 28 is a schematic diagram of a position of another added symbol according to an embodiment of the application;

FIG. 29 is a diagram illustrating the position of a new symbol according to an embodiment of the present application;

FIG. 30 is a schematic diagram of a position of another added symbol according to an embodiment of the application;

FIG. 31 is a diagram illustrating a position of another added symbol according to an embodiment of the present application;

fig. 32 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 33 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

In the following, some terms in the embodiments of the present application are explained for easy understanding by those skilled in the art.

1) The terminal device may be a device having a wireless transceiver function or a chip that may be provided in any device, and may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal, an augmented reality (augmented reality, AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in video monitoring, a wearable terminal device, and the like.

The network device may be a means for implementing a function of an access network device, where the access network device may refer to a device in the access network that communicates with a wireless terminal device through one or more cells over an air interface, for example, may be a next generation base station (next Generation node B, gNB) in an NR system, may be an evolved base station (evolutional node B, eNB) in an LTE system, or the like. The network device may also be a device, such as a system-on-a-chip, capable of supporting the network device to implement the functionality of the access network device, which may be installed in the network device.

2) The reduced capability (reduced capability, REDCAP) terminal device (REDCAP UE) may have at least one of the following features:

1. the maximum bandwidth at the time of initial access and/or after the initial access of the low frequency range (frequency range 1, fr 1) does not exceed 20MHz, and further, the maximum bandwidth may be set to not exceed 5MHz. The maximum bandwidth at the time of initial access and/or after initial access of the high frequency range (frequency range 1, frequency range 2) does not exceed 100MHz.

2. The minimum number of supported receive antenna (Rx) branches is 1.

3. The protocol version is NR Rel-17 or more.

4. Only half duplex frequency division duplexing (frequency division duplex, FDD) is supported.

5. If there is a 1Rx branch, 1 Downlink (DL) maximum multiple-in multiple-out (MIMO) layer is supported. If there are 2 Rx branches, 2 DL MIMO layers are supported.

A reduced capability terminal device may be understood as a terminal device with reduced capabilities relative to a legacy terminal device (legacy UE), including but not limited to the features of the above five aspects, wherein the legacy terminal device may be, for example, an enhanced mobile broadband (enhanced Mobile Broadband, eMBB) terminal device or a mass machine class communication (massive Machine Type of Communication) or an ultra-reliable low-latency communication (URLLC) terminal device.

3) SSB: in the NR system, an SSB includes a primary synchronization signal (primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS) and a physical broadcast channel (physical broadcast channel, PBCH). The SSB format in NR may be as shown in fig. 1, where one SSB occupies 4 consecutive orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) time domain units in the time domain. In the frequency domain, one SSB occupies 240 consecutive subcarriers, and the 240 subcarriers are numbered from 0 to 239 in order of increasing frequency, specifically, as shown in fig. 1, the first OFDM time domain unit carries PSS, and the subcarriers numbered 56, 57, …,182 are the subcarriers occupied by PSS, that is, PSS is mapped to the subcarriers numbered 56, 57, …,182 of the first OFDM time domain unit.

The 2 nd OFDM and 4 th OFDM time domain units carry PBCH. That is, the PBCH may be mapped to subcarriers numbered 0 to 239 of the 2 nd OFDM and 4 th OFDM time domain units.

The 3 rd OFDM time domain unit carries SSS and PBCH, wherein the subcarriers numbered 56, 57, …,182 carry SSS, and the subcarriers numbered 0,1, …,47, 192, 193, …,239 carry PBCH. That is, SSS maps to subcarriers number 56, 57, …,182 of the 3 rd OFDM time domain unit. PBCH may be mapped onto subcarriers numbered 0,1, …,47, 192, 193, …,239 of the 3 rd OFDM time domain unit.

4) Resource Block (RB)

The N subcarriers consecutive in the frequency domain may be referred to as one resource block. For example, one resource block may include 12 subcarriers. As the system evolves, one resource block may also include subcarriers of other values, which is not a limitation of the present application. For example, in the embodiment of the present application, for a communication system including 12 subcarriers for one resource block, it may also be called 20 RBs for 240 subcarriers.

5) Sub-carriers

In a wireless communication system, a frequency domain resource may be divided into several sub-resources, which may be referred to as one sub-carrier on each frequency domain. Alternatively, the subcarriers may also be referred to as the minimum granularity of the frequency domain resources.

6) Sign symbol

In a wireless communication system, a symbol may be referred to as a time domain symbol, may be an OFDM symbol, may be an orthogonal frequency division multiplexing (discrete fourier transform spread orthogonal frequency division multiplexing, DFT-s-OFDM) symbol based on discrete fourier transform spreading, or the like.

7) Time slots

There may be different slot lengths for different subcarrier spacings. For example, when the subcarrier spacing is 15kHz, one slot may be 1 millisecond (ms); at a subcarrier spacing of 30kHz, one slot may be 0.5 milliseconds (ms). A slot may include one or more symbols. For example, a normal Cyclic Prefix (CP) next slot may include 14 time domain symbols, and an extended CP next slot may include 12 time domain symbols.

8) SSB burst window

One SSB burst window includes at least one SSB contained within a beam sweep (beam sweep), which can be understood as a set of one or more SSBs over a period. The SSB burst window occupies a consecutive plurality of symbols in the time domain. Within the SSB burst window there are N SSBs, N being greater than or equal to 1. The N SSBs are within one field. The N SSBs associate different SSB indexes.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

And, unless otherwise indicated, the terms "first," "second," and the like according to the embodiments of the present application are used for distinguishing a plurality of objects, and are not used for limiting the size, content, order, timing, priority, importance, or the like of the plurality of objects. For example, the first resource and the second resource are merely for distinguishing between different resources, and are not indicative of the difference in location, size, priority, importance, etc. of the two resources.

The foregoing has described some of the concepts related to the embodiments of the present application, and the following describes some of the features related to the embodiments of the present application.

It can be seen that for the SSB configuration shown in fig. 1, 240 subcarriers, that is, 20 RBs are occupied in the frequency domain, and for the SSB configuration shown in fig. 1, the terminal device needs to support a maximum processing bandwidth of at least 20 RBs in order to receive a successful SSB at a time. Then for terminal devices supporting a maximum processing bandwidth of less than 20 RBs, such as bandwidth limited terminal devices, a series of problems may occur if SSB as shown in fig. 1 is employed due to the smaller bandwidth. For example, due to the small bandwidth, the terminal device cannot fully receive SSB. How to quickly acquire a broadcast channel is a technical problem to be solved by the present application for terminal devices supporting a maximum processing bandwidth of less than 20 RBs.

Based on this, the embodiment of the application provides a communication method and a communication device, which are used for realizing that terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by a broadcast channel acquires the broadcast channel and the like. The method and the device are based on the same inventive concept, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

The communication method provided by the application can be applied to various communication systems, for example, the communication method can be an Internet of things (internet of things, ioT), a narrowband Internet of things (narrow band internet of things, NB-IoT), a long-term evolution (long term evolution, LTE), a fifth generation (5G) communication system, a mixed architecture of LTE and 5G, a 5G New Radio (NR) system, a new communication system appearing in 6G or future communication development, and the like. The 5G communication system according to the present application may include at least one of a non-independent Networking (NSA) 5G communication system and an independent networking (SA) 5G communication system. The communication system may also be a machine-to-machine (machine to machine, M2M) network or other network.

Referring to fig. 2, a communication system according to an embodiment of the present application includes a network device and six terminal devices, i.e., UE1 to UE6. In the communication system, UE1 to UE6 may transmit uplink data to a network device, and the network device may receive the uplink data transmitted by UE1 to UE6. In addition, UEs 4 to 6 may constitute one sub-communication system. The network device may send downlink information to UE1, UE2, UE3, UE5, and UE5 may send downlink information to UE4, UE6 based on a device-to-device (D2D) technology. Fig. 2 is merely a schematic diagram, and the type of the communication system, and the number, type, and the like of devices included in the communication system are not particularly limited.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution provided in the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiments of the present application is applicable to similar technical problems.

Alternatively, in the embodiment of the present application, the terminal device with the maximum processing bandwidth greater than or equal to 20 RBs may be referred to as a wideband terminal device, and the terminal device with the maximum processing bandwidth less than 20 RBs may be referred to as a narrowband terminal device. It will be appreciated that the embodiment of the present application is illustrated by taking a communication system in which one resource block occupies 12 subcarriers, and in this communication system, 240 subcarriers may be also referred to as 20 RBs. The embodiment of the application can also be applied to other communication systems, in which the transmission bandwidth occupied by the SSB and the maximum processing bandwidth supported by the terminal equipment can be correspondingly converted, and the conversion is not listed here.

The embodiment of the application can be applied to REDCAP UE of Release 18, UE working in a specific frequency domain smaller than 3.6MHz and the like.

It should be noted that, in the embodiment of the present application, the time domain unit may be a symbol, or may be a unit such as a time slot, a subframe, a field, or other units that occur in future communication development, which is not limited herein specifically. To facilitate understanding of the scheme, the following description will take a time domain unit as an example.

The frequency index in the embodiment of the present application may be a subcarrier index, an RB index, or a Resource Element (RE) index, which is not specifically limited herein. In order to facilitate understanding of the scheme, a description will be given below taking a frequency index as an example of a subcarrier index.

The "resources" in the embodiments of the present application may include time domain resources and frequency domain resources.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Referring to fig. 3, a flow chart of a communication method provided by the present application is shown. The method is described by taking the network device and the terminal device as examples, it can be understood that the functions of the network device can be implemented by a chip applied to the network device, or implemented by other devices to support the network device, and the functions of the terminal device can be implemented by a chip applied to the terminal device, or implemented by other devices to support the terminal device. The method comprises the following steps:

s301, the network device sends a first SSB to the terminal device. Wherein the first SSB includes a first SSB portion, the first SSB portion being transmitted on a first resource. Accordingly, the terminal device receives the first SSB portion on the first resource.

In one exemplary illustration, the broadcast channel received on the first resource may be at least one or more of: SSB, PBCH, control resource set (control resource set, CORESET).

The first resource is a part of resources used by the first SSB, and the frequency range occupied by the first resource is not greater than the maximum processing bandwidth of the terminal device. The frequency range may be a length of a section of continuous frequency domain resource, and the unit may be RB, number of subcarriers, hertz (Hz), RE, and the like. For example, the frequency range may be composed of a plurality of consecutive subcarriers, taking the number of subcarriers as a unit. Alternatively, the first resource may be contiguous in the frequency domain.

In one example, when the subcarrier spacing (subcarrier spacing, SCS) is 30kHz and the maximum processing bandwidth of the terminal device is 5MHz, the maximum processing bandwidth of the terminal device is 11 RBs. In this example, the first resource is less than or equal to 11 RBs.

In another example, when the SCS is 30kHz and the maximum processing bandwidth of the terminal device is 5MHz, the maximum processing bandwidth of the terminal device is 12 RBs. In this example, the first resource is less than or equal to 12 RBs.

In another example, when the SCS is 15kHz and the terminal device operates in a specific spectrum less than 3.6MHz, the maximum processing bandwidth of the terminal device is 11 RBs. In this example, the first resource is less than or equal to 11 RBs.

In another example, when the SCS is 15kHz and the terminal device operates in a specific spectrum less than 3.6MHz, the maximum processing bandwidth of the terminal device is 12 RBs. In this example, the first resource is less than or equal to 12 RBs.

It should be understood that in other scenarios, the maximum processing bandwidth of the terminal device may be other, which is not listed here.

The first SSB further includes a second SSB portion, and the first SSB portion and the second SSB portion may be used to determine the first SSB. For example, the first SSB portion may be a portion of information in the information carried by the first SSB. For example, the first SSB portion is a portion of information carried by the PBCH of the first SSB. The second SSB portion is a portion of information in the information carried by the first SSB. For example, the second SSB portion is a portion of information carried by the PBCH of the first SSB. The first SSB portion and the second SSB portion are different portions of the first SSB.

The sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device.

For example, the first resource occupies a frequency range of 11 RBs, the second SSB portion transmission occupies a frequency range of 9 RBs, and the maximum processing bandwidth of the terminal device is 11 RBs.

For another example, the first resource occupies a frequency range of 11 RBs, the second SSB portion transmission occupies a frequency range of 9 RBs, and the maximum processing bandwidth of the terminal device is 12 RBs.

For another example, the first resource occupies a frequency range of 12 RBs, the second SSB portion transmission occupies a frequency range of 8 RBs, and the maximum processing bandwidth of the terminal device is 12 RBs.

Alternatively, the first SSB may occupy 4 symbols in the time domain and 240 subcarriers in the frequency domain, as shown in fig. 1. For descriptive convenience, the first SSB occupies 4 symbols in the time domain and occupies 240 subcarriers in the frequency domain.

The first SSB is an SSB within an SSB burst window. Wherein the first information within the SSB burst window is associated with the same SSB index as the first SSB portion. The first information is associated with the same SSB index as the first SSB part, and is not limited to the content included in the first information being related to the content included in the first SSB part.

The time domain resource location of the resource used for the first information transmission is different from the time domain resource location of the first resource. For example, the symbol index associated with the time domain resource position of the first resource is 0-3, and the symbol index associated with the time domain resource position of the resource used for the transmission of the first SSB portion is 4-5. For another example, the symbol index associated with the time domain resource location of the first resource is 2 to 5, and the symbol index associated with the time domain resource location of the resource used for the transmission of the first SSB portion is 0 to 1. For another example, the symbol index associated with the time domain resource location of the first resource is 1-4, the symbol index associated with the time domain resource location of the resource used for the transmission of the first SSB portion is 0 and 5, and so on.

The frequency domain resource location of the resource used for the first information transmission is the same as the frequency domain resource location of the first resource. In one exemplary illustration, the frequency domain resources of the resources used for the first information transmission are identical to the frequency domain resources of the first resources.

Or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource. The size of the frequency domain resource of the resource used for the first information transmission may be the same as or different from the size (or bandwidth) of the frequency domain resource of the first resource.

In one exemplary illustration, the first information and the second SSB portion include all or part of the same information.

In one possible implementation, the frequency domain resources of the second SSB portion do not overlap with the frequency domain resources of the first resources.

In one possible example, the first SSB includes a first SSB portion and a second SSB portion. Wherein the first SSB portion corresponds to symbols 1 to 4. The second SSB part corresponds to symbols 2 to 4. Illustratively, the first SSB portion is a portion of the first SSB that is received by the terminal device. The second SSB portion is a portion of the first SSB that is not received by the terminal device. For example, as shown in fig. 4.

It will be appreciated that, in the embodiment of the present application, symbol 1 corresponds to the first time domain unit in the first aspect or the third aspect of the present application. Symbol 2 corresponds to a second time domain unit in the first aspect or in the third aspect of the application. Symbol 3 corresponds to a third time domain unit in the first aspect or in the third aspect of the summary. Symbol 4 corresponds to a fourth time domain element in the first aspect or in the third aspect of the application.

Since the frequency range of the first SSB is 20 RBs and the maximum processing bandwidth of the terminal device is less than 20 RBs, the terminal device cannot receive all information of the first SSB when receiving the first SSB, only the first SSB portion of the first SSB, and cannot receive the second SSB portion of the first SSB. In the application, the information included in the second SSB part is remapped to one or more time domain units and is received by the terminal equipment, so that the terminal equipment can acquire the information of the second SSB part in the first SSB, and the terminal equipment is helped to acquire the information of the first SSB, wherein the information of the remapped second SSB part is the first information. The specific manner in which the information included in the second SSB portion is remapped to one or more time-domain units, i.e., the information not received in the first SSB portion is remapped to one or more time-domain units, will be described in detail below.

In the above implementation manner, after the network device sends the first SSB, the network device may retransmit information (i.e., the first information) carried by the SSB portion that cannot be received by the terminal device in the first SSB to the terminal device. Accordingly, the terminal device may buffer information included in the first SSB portion after receiving the first SSB portion, and determine information of the first SSB according to the first information and the information included in the first SSB portion after receiving the first information.

In another possible implementation, the frequency domain resources of the second SSB portion overlap partially or fully with the frequency domain resources of the first resources. For example, the first SSB includes a first SSB portion and a second SSB portion. The first SSB portion corresponds to symbols 1 to 4, and the first SSB portion is a portion of the first SSB that is received by the terminal device. The second SSB part corresponds to symbols 2-4, and the second SSB part is PBCH in the first SSB.

Since the frequency range of the first SSB is 20 RBs and the maximum processing bandwidth of the terminal device is less than 20 RBs, the terminal device cannot receive all information of the first SSB when receiving the first SSB, only the first SSB portion in the first SSB can be received, and the PBCH information in the first SSB cannot be completely received. In the application, the PBCH information in the first SSB is remapped to one or more time domain units to be received by the terminal equipment, so that the terminal equipment can acquire the PBCH information in the first SSB, and the terminal equipment is helped to acquire the information of the first SSB, wherein the information of the remapped second SSB part, namely the PBCH information of the first SSB, is the first information. The manner in which the PBCH information of the first SSB is remapped to one or more time-domain units is similar to the manner in which the information that is not received in the first SSB is remapped to one or more time-domain units, and in particular, reference may be made to the following description of remapping the information that is not received in the first SSB to one or more time-domain units, and the details are not repeated.

Based on this implementation, the network device may retransmit the PBCH information in the first SSB (i.e., the information included in the first information) to the terminal device after transmitting the first SSB. Accordingly, the terminal device may first receive PSS information and SSS information included in the first SSB portion. After receiving the first information, determining information of the first SSB based on the first information and information included in the first SSB portion.

Alternatively, before step S301, the network device may determine the first information, or may understand that the second SSB portion is determined.

S302, the terminal equipment acquires one or more of a physical broadcast channel, a synchronous signal and a main information block according to the first SSB part.

Wherein the synchronization signal may comprise a primary synchronization signal and/or a secondary synchronization signal.

In an alternative solution, the terminal device may acquire one or more of the physical broadcast channel, the synchronization signal, and the main information block only according to the first SSB portion.

Optionally, the terminal device may further obtain all or part of the information of the second SSB portion according to the first information.

For example, the terminal device may acquire one or more of a physical broadcast channel, a synchronization signal, and a master information block according to the first SSB part and the first information.

In one implementation, the terminal device may perform cell search and time-frequency synchronization according to the first SSB portion and the first information.

Specifically, the terminal device may determine the first SSB according to the first SSB portion and the first information, and perform cell search and time-frequency synchronization according to the first SSB.

In addition, the terminal device may perform RRM measurement, uplink beam selection, measurement beam selection, BWP information acquisition, neighbor information acquisition, initial random access completion, and the like according to the first SSB portion and the first information, and may perform other operations according to the first SSB portion and the first information, which is not limited herein.

By the method provided by the embodiment of the application, the terminal equipment with the maximum processing bandwidth smaller than the frequency domain width occupied by the broadcast channel can acquire the physical broadcast channel, the synchronous signal, the main information block and the like through the first SSB part.

The first information is described below by taking, as an example, that the frequency domain resource of the second SSB portion and the frequency domain resource of the first resource do not overlap, that is, the first information is information carried by the SSB portion that cannot be received by the terminal device in the first SSB, and the maximum processing bandwidth of the terminal device is used.

Example 1, assume that the maximum processing bandwidth of the terminal device is 11 RBs.

In example 1, since the frequency range of the first SSB is 20 RBs and the maximum processing bandwidth of the terminal device is 11 RBs, the terminal device cannot receive the entire information of the first SSB when receiving the first SSB, and can only receive the first SSB portion of the first SSB, and the frequency range of the first SSB portion is 11 RBs. And the second SSB portion in the first SSB is remapped to 2 symbols or 3 symbols to be received by the terminal device as first information, wherein the frequency domain range corresponding to the first information is 11 RBs.

It should be understood that the present application is only described by taking the example that the first information corresponds to 2 symbols or 3 symbols, and the first information may also correspond to more or fewer symbols, and the present application is not limited to the number of symbols corresponding to the first information specifically. An exemplary description is made below for 2 symbols and 3 symbols, respectively.

The first information is exemplarily described below in conjunction with 2 symbols and 3 symbols, respectively.

Example 1.1, the first information corresponds to 2 symbols, namely symbol 5 and symbol 6.

In example 1.1, the information mapped to symbol 5 and symbol 6 may be regarded as first information. It will be appreciated that in example 1.1, symbol 5 corresponds to the fifth time domain unit in the first aspect or the third aspect of the invention, and symbol 6 corresponds to the sixth time domain unit in the first aspect or the third aspect of the invention.

In the first SSB, the resources occupied by the PBCH are 48 RBs. The terminal device can only receive the PBCH information of 11 RBs in symbol 2 and the PBCH information of 11 RBs in symbol 4 when receiving the first SSB. The PBCH information of the remaining 26 RBs cannot be received by the terminal device when the first SSB is transmitted. In example 1.1, PBCH information of the remaining 26 RBs may be remapped to symbol 5 and symbol 6, and frequency domain resources occupied by symbol 5 and symbol 6 are within 11 RBs, wherein the information remapped to symbol 5 and symbol 6 may be regarded as first information.

In example 1.1, the PBCH information of 4 RBs among the PBCH information of the remaining 26 RBs may be punctured, and it may be understood that the PBCH information of 4 RBs is not re-mapped. The PBCH information of the remaining 22 RBs is then remapped on symbol 5 and symbol 6.

For example, the PBCH information with a higher subcarrier index of the first SSB and/or the PBCH information with a smaller subcarrier index of the conventional SSB are punctured.

As an example, as shown in fig. 5, the PBCH information of symbol 3 in the first SSB is punctured by the PBCH information (diagonal line part in fig. 5) of the first 4 RBs ordered from high to low in subcarrier index.

In another example, as shown in fig. 6, PBCH information of symbol 3 in the first SSB is punctured according to PBCH information (diagonal line part in fig. 6) of the first 4 RBs in which subcarrier indexes are ordered from low to high.

In still another example, as shown in fig. 7, PBCH information of symbol 3 in the first SSB is punctured by PBCH information of the first 2 RBs and PBCH information (hatched portion in fig. 7) of the last 2 RBs ordered from low to high according to the subcarrier index.

It should be noted that fig. 5 to 7 are only exemplary punching methods, and other punching methods may be used in the specific embodiment. For example, the PBCH information of symbol 2 in the first SSB is punctured by the PBCH information of the first 3 RBs ordered from high to low in subcarrier index, and the PBCH information of symbol 4 in the first SSB is punctured by the PBCH information of the 1 st RB ordered from low to high in subcarrier index, and so on. The present application is not limited to the positions of 4 RBs to be punctured.

In example 1.1, the first SSB portion may include a PSS, an SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion including a third PBCH portion and a fourth PBCH portion. The first information comprises first sub-information and second sub-information, wherein the first sub-information is identical to information included in the third PBCH part, and the second sub-information is identical to information included in the fourth PBCH part. Wherein, PSS corresponds to symbol 1, the first PBCH part corresponds to symbol 2, sss corresponds to symbol 3, and the second PBCH part corresponds to symbol 4. The third and fourth PBCH parts correspond to symbols 2 to 4. The first sub-information corresponds to symbol 5 and the second sub-information corresponds to symbol 6.

Example 1.2, the first information corresponds to 3 symbols, namely symbol 5, symbol 6 and symbol 7.

It will be appreciated that in example 1.2, symbol 5 corresponds to the fifth time domain unit in the first aspect or the third aspect of the invention, symbol 6 corresponds to the sixth time domain unit in the first aspect or the third aspect of the invention, and symbol 7 corresponds to the ninth time domain unit in the first aspect or the third aspect of the invention.

In the first SSB, the resources occupied by the PBCH are 48 RBs. The terminal device can only receive the PBCH information of 11 RBs in symbol 2 and the PBCH information of 11 RBs in symbol 4 when receiving the first SSB. The PBCH information of the remaining 26 RBs cannot be received by the terminal device when the first SSB is transmitted. In example 1.2, PBCH information of the remaining 26 RBs may be remapped to symbol 5, symbol 6, and symbol 7, wherein the information remapped to symbol 5, symbol 6, and symbol 7 may be regarded as first information.

In example 1.2, the PBCH information of the remaining 26 RBs may be entirely remapped to symbols 5 to 7, or a part of the PBCH information of the remaining 26 RBs may be remapped to symbols 5 to 7. For example, the PBCH information of m RBs among the PBCH information of the remaining 26 RBs may be punctured, and it may be understood that the PBCH information of m RBs is not remapped, where m is an integer greater than 0 and less than 4. The remaining PBCH information is then remapped to symbols 5 through 7.

For example, the PBCH information with a higher subcarrier index of the first SSB and/or the PBCH information with a smaller subcarrier index of the conventional SSB are punctured. For example, the PBCH information of 1 RB having the largest subcarrier index of symbol 2 in the first SSB and the PBCH information of 1 RB having the largest subcarrier index of symbol 4 in the first SSB may be punctured.

It should be noted that this is only an exemplary puncturing manner, and other puncturing manners may be adopted in a specific embodiment, for example, puncturing the PBCH information of the first 3 RBs of the symbol 2 in the first SSB according to the order of the subcarrier indexes from high to low, and so on. The present application does not limit the location and number of RBs to be punctured.

It will be appreciated that the frequency domain resources corresponding to the first information on each of symbols 5 through 7 may be the same or different. For example, taking the example that the PBCH information of the remaining 26 RBs is all remapped on symbols 5 to 7, the frequency domain resources of the first information corresponding to symbol 5 and symbol 6 are 11 RBs, and the frequency domain resources of the first information corresponding to symbol 7 are 4 RBs, as shown in fig. 8. For another example, the frequency domain resource corresponding to the first information is 10 RBs in the symbol 5, and the frequency domain resource corresponding to the first information is 8 RBs in the symbols 6 and 7.

In example 1.2, the first SSB portion includes a PSS, an SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion includes a fifth PBCH portion, a sixth PBCH portion, and a seventh PBCH portion; the first information includes third sub-information, fourth sub-information and fifth sub-information, wherein the third sub-information is identical to the fifth PBCH part, the fourth sub-information is identical to the sixth PBCH part, and the fifth sub-information is identical to the seventh PBCH part. Wherein, PSS corresponds to symbol 1, the first PBCH part corresponds to symbol 2, sss corresponds to symbol 3, the second PBCH part corresponds to symbol 4, the third sub-information corresponds to symbol 5, the fourth sub-information corresponds to symbol 6, and the fifth sub-information is mapped to symbol 7. The fifth, sixth and seventh PBCH parts correspond to symbols 2 to 4.

Example 2, assume that the maximum processing bandwidth of the terminal device is 12 RBs.

In example 2, since the frequency range of the first SSB is 20 RBs and the maximum processing bandwidth of the terminal device is 12 RBs, the terminal device cannot receive the entire information of the first SSB when receiving the first SSB, and can only receive the first SSB portion of the first SSB, and the frequency range of the first SSB portion is 12 RBs. And the second SSB portion in the first SSB is remapped to 2 symbols to be received by the terminal device as first information, wherein the frequency domain range corresponding to the first information is 12 RBs.

It should be understood that the present application is only described by taking the example that the first information corresponds to 2 symbols, and the first information may also correspond to more or fewer symbols, and the number of symbols corresponding to the first information is not specifically limited in the present application.

For ease of description, in example 2, the remapping of the second SSB portion onto symbol 5 and symbol 6 is illustrated as an example, it being understood that in example 2, symbol 5 corresponds to the fifth time domain unit in the first aspect or the third aspect of the inventive content, and symbol 6 corresponds to the sixth time domain unit in the first aspect or the third aspect of the inventive content.

In the first SSB, the resources occupied by the PBCH are 48 RBs. The terminal device can only receive the PBCH information of 12 RBs in symbol 2 and the PBCH information of 12 RBs in symbol 4 when receiving the first SSB. The PBCH information of the remaining 24 RBs cannot be received by the terminal device when the first SSB is transmitted. In example 2, PBCH information of the remaining 24 RBs may be remapped to symbol 5 and symbol 6, and frequency domain resources occupied by symbol 5 and symbol 6 are within 12 RBs, wherein the information remapped to symbol 5 and symbol 6 may be regarded as first information.

In one possible example, the first SSB portion may include a PSS, an SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion including a third PBCH portion and a fourth PBCH portion. The first information comprises first sub-information and second sub-information, wherein the first sub-information is identical to information included in the third PBCH part, and the second sub-information is identical to information included in the fourth PBCH part. Wherein, PSS corresponds to symbol 1, the first PBCH part corresponds to symbol 2, sss corresponds to symbol 3, and the second PBCH part corresponds to symbol 4. The third and fourth PBCH parts correspond to symbols 2 to 4. The first sub-information corresponds to symbol 5 and the second sub-information corresponds to symbol 6. As shown in fig. 9.

The time domain resources, the frequency domain resources corresponding to the first information and the included information are described above in connection with the maximum processing bandwidth of the terminal device. The corresponding way of the first information on the newly added symbol, i.e. the way of remapping the second SSB part to the newly added symbol, is explained below. It should be understood that the "new symbol" is only a name for distinguishing the symbol corresponding to the first SSB, and is not limited to the symbol corresponding to the first information being newly added, and specifically, the "new symbol" in the present application refers to the symbol corresponding to the first information, for example, symbol 5 and symbol 6 in example 1.1, symbol 5, symbol 6 and symbol 7 in example 1.2, symbol 5 and symbol 6 in example 2, and the like.

Two exemplary implementations of remapping the second SSB portion onto the newly added symbol are provided below.

In a first possible implementation, the remapping of the second SSB portion to the newly added symbol may be implemented as follows: and remapping the information included in the second SSB part into the newly added symbol according to the sequence from the small time domain index to the large time domain index, wherein the information corresponding to the same time domain index in the information included in the second SSB part is mapped according to the sequence from the small subcarrier index to the large time domain index.

In a first embodiment, the first information is mapped (or ordered) by the second SSB portion according to the following order: the method comprises the steps of firstly, according to the sequence from the small subcarrier index to the large subcarrier index, and then, according to the sequence from the small subcarrier index to the large subcarrier index. Specifically, the information corresponding to the same symbol in the second SSB portion may be sorted in order from the smaller subcarrier index to the larger subcarrier index, so as to obtain the sorted information of each symbol. And then, sequencing the sequenced information of each symbol according to the sequence from the small time index to the large time index to obtain first information.

In the first embodiment, the order in which the information corresponding to the resource elements (k, l) in the second SSB portion is remapped on the newly added symbol may be the order in which k is increased first and then the order in which l is increased, where k is a subcarrier index and l is a time domain index.

For example, taking the example 1.1 that the first information corresponds to the symbol 5 and the symbol 6, that is, the newly added symbol is the symbol 5 and the symbol 6, let k= { 0-55, 183-239 }, l= {1,2,3}, if the second SSB portion adopts the puncturing manner shown in fig. 5, the sequence of remapping the information included in the second SSB portion to the symbol 5 and the symbol 6 may be as shown in fig. 10.

In other puncturing manners, the order in which the information included in the second SSB portion is remapped to the symbol 5 and the symbol 6 is similar to that of fig. 10, and will not be described here.

For another example, taking the example of the first information corresponding to the symbol 5 and the symbol 6 in example 2, that is, the newly added symbol is the symbol 5 and the symbol 6, assuming that k= { 0-47, 192-239 }, l= {1,2,3}, the order of remapping the information included in the second SSB part to the symbol 5 and the symbol 6 may be as shown in fig. 11.

It should be understood that in the above embodiment, the order of the subcarrier indexes from small to large and the order of the time indexes from small to large are merely described as examples, and in a specific implementation, the subcarrier indexes may be sorted (or mapped) in the order of the subcarrier indexes from large to small and the order of the time indexes from large to small.

The mapping manner of the first possible implementation manner is the same as that of the PBCH in the first SSB, so that the terminal device can multiplex the mapping manner of the first SSB through the first possible implementation manner, thereby reducing the complexity of the terminal device.

In a second possible implementation, the remapping of the second SSB portion to the newly added symbol may be implemented as follows: information corresponding to the first frequency range in the second SSB portion is mapped first, and information corresponding to the second frequency range in the second SSB portion is mapped. Wherein the first frequency range and the second frequency range do not overlap. Wherein the frequency range may be a subcarrier index range. Illustratively, in example 1, the first frequency range and the second frequency range may be as shown in fig. 12. In example 2, the first frequency range and the second frequency range may be as shown in fig. 13.

The first information in example 1.1 corresponds to the symbol 5 and the symbol 6, i.e. the newly added symbol is the symbol 5 and the symbol 6. Assuming that the first information includes a first information portion and a second information portion, where information corresponding to a first frequency range in the first information portion and information corresponding to a second frequency range in the second SSB portion are the same, a manner in which the first information corresponds to a new symbol may be one of the following examples a to c:

example a, the first information part corresponds to symbol 5 and the second information part corresponds to symbol 6. That is, the information (i.e., the first sub-information) mapped on the symbol 5 by the first information is the same as the information corresponding to the first frequency range in the second SSB part, and the information (i.e., the second sub-information) mapped on the symbol 6 by the first information is the same as the information corresponding to the second frequency range in the second SSB part.

It will be appreciated that if the second SSB portion is punctured, the first frequency range includes 11 RBs, and the second frequency range includes 11 RBs, for example, as shown in fig. 7, the first information corresponds to symbol 5 and symbol 6 as shown in example a. In connection with the punching pattern shown in fig. 7, example a may be as shown in fig. 14.

Example b, the third sub-information corresponds to symbol 5 and symbol 6, and the fourth information corresponds to symbol 5. That is, the information (i.e., the first sub-information) mapped on the symbol 5 by the first information is the same as a part of the information corresponding to the first frequency range in the second SSB part, and the information (i.e., the second sub-information) mapped on the symbol 6 by the first information includes information a and information B, wherein the information a and the information corresponding to the second SSB part are the same as the rest of the information corresponding to the first frequency range, and the information B and the information corresponding to the second frequency range are the same.

It will be appreciated that if the second SSB portion is punctured, the RBs included in the first frequency range are greater than 11 RBs, and the RBs included in the second frequency range are less than 11 RBs, for example, as shown in fig. 5, and the first information corresponds to symbol 5 and symbol 6, as shown in example b. In connection with the punching mode shown in fig. 5, example a may be as shown in fig. 15.

Example c, information a corresponds to symbol 5, and information B corresponds to symbols 5 and 6. That is, the information (i.e., the first sub-information) to which the first information is mapped on the symbol 5 includes information C and information D, wherein the information C and the second SSB part are identical to each other in the information corresponding to the first frequency range and the information D and the second SSB part are identical to each other in a part of the information corresponding to the second frequency range. The information (i.e., the second sub-information) mapped by the first information on symbol 6 is the same as the rest of the information in the information of the second SSB part corresponding to the second frequency range.

It will be appreciated that if the second SSB portion is punctured, the RBs included in the first frequency range are smaller than 11 RBs, and the RBs included in the second frequency range are larger than 11 RBs, for example, as shown in fig. 6, the manner in which the first information corresponds to symbol 5 and symbol 6 may be as shown in example c. In connection with the punching pattern shown in fig. 6, example a may be as shown in fig. 16A.

The first information in example 1.2 corresponds to the symbols 5 to 7, i.e. the newly added symbols are the symbols 5 to 7. Assuming that the first information includes a first information portion and a second information portion, where information corresponding to a first frequency range in the first information portion and information corresponding to a second frequency range in the second SSB portion are the same, a manner in which the first information corresponds to a newly added symbol may be: the first information part corresponds to symbol 5 and symbol 6 and the second information part corresponds to symbol 6 and symbol 7. That is, the information (i.e., the third sub-information) to which the first information is mapped on the symbol 5 is identical to part of the information corresponding to the first frequency range in the second SSB part. The information (i.e., the fourth sub-information) mapped on the symbol 6 by the first information includes information E and information F, wherein the information E is identical to the rest of the information corresponding to the first frequency range in the second SSB part, and the information F is identical to the rest of the information corresponding to the second frequency range in the second SSB part. The information mapped on symbol 7 by the first information (i.e., the fifth sub-information) is identical to the rest of the information in the second SSB section corresponding to the second frequency range.

It will be appreciated that assuming that the second SSB portion includes 26, 13 RBs are included in the first frequency range, 13 RBs are included in the second frequency range, the manner in which the first information corresponds to symbols 5 to 7 may be as shown in fig. 16B.

Taking the example in example 2 that the first information corresponds to the symbol 5 and the symbol 6, that is, the newly added symbol is the symbol 5 and the symbol 6, the manner in which the first information corresponds to the newly added symbol may be: the first information corresponds to symbol 5 with the same information as the information corresponding to the first frequency range in the second SSB part, and the first information corresponds to symbol 6 with the same information as the information corresponding to the second frequency range in the second SSB part. As shown in fig. 17.

It should be understood that in the above embodiment, only the case where the highest frequency (or the largest subcarrier index) of the first frequency range is smaller than the lowest frequency (or the smallest subcarrier index) of the second frequency range is taken as an example, and in a specific implementation, the lowest frequency (or the smallest subcarrier index) of the first frequency range may be larger than the highest frequency (or the largest subcarrier index) of the second frequency range.

By a second possible implementation manner, information with the same frequency range can be mapped on the same symbol, which is helpful for the terminal device to demodulate and decode the first information.

The two mapping sequences are described in the above exemplary manner, and in the specific implementation, the sequence of remapping the second SSB portion to the newly added symbol may also be other sequences, for example, random mapping of information in the time domain, random mapping of information in the frequency domain, and so on, which are not listed here.

In the embodiment of the present application, the newly added symbol may be a continuous symbol. For example, taking the newly added symbol as symbol 5 and symbol 6 as an example, symbol 5 occupies the nth time domain resource, and symbol 6 occupies the n+1th time domain resource. For another example, taking the newly added symbol as symbol 5, symbol 6 and symbol 7, symbol 5 occupies the nth time domain resource, symbol 6 occupies the n+1th time domain resource, symbol 7 occupies the n+2th time domain resource, and N is an integer greater than 0.

Alternatively, the newly added symbol may be a discontinuous symbol. Taking the newly added symbol as a symbol 5 and a symbol 6 as examples, the symbol 5 occupies the nth time domain resource, and the symbol 6 occupies the (n+5) th time domain resource. For another example, taking the newly added symbol as symbol 5, symbol 6 and symbol 7, symbol 5 occupies the nth time domain resource, symbol 6 occupies the n+5 time domain resource, symbol 7 occupies the n+6 time domain resource, and N is an integer greater than 0.

Alternatively, the newly added symbols may belong to the same time slot or may belong to different time slots.

In the embodiment of the present application, the newly added symbols may all be in front of the symbols corresponding to the first SSB. Alternatively, the newly added symbols may all follow the symbols corresponding to the first SSB. Alternatively, part of the newly added symbols are in front of the symbols corresponding to the first SSB, and the rest of the symbols are in back of the symbols corresponding to the first SSB.

Wherein the position and/or number of the new symbols may be predefined, e.g. protocol defined. Alternatively, the position and/or number of the newly added symbols may be configured by signaling by the network device or the terminal device.

The signaling for configuring the position of the newly added symbol may be control information, for example, the network device is configured through downlink control information (downlink control information, DCI), or the terminal device is configured through uplink control information (uplink control information, UCI). By the mode, the transmission period of the signaling for configuring the position of the newly added symbol is short and the frequency is high, so that the newly added symbol can be configured in time, and the terminal equipment can acquire SSB (or acquire PBCH) information in time.

Alternatively, the signaling for configuring the position of the newly added symbol may be higher layer signaling, such as radio resource control (radio resource control, RRC) signaling, etc. In this way, the amount of data that can be transmitted by signaling configuring the position of the newly added symbol is large, and the transmission reliability is high.

Alternatively, the signaling for configuring the position of the newly added symbol may be media access control layer control element (media access control control element, MAC CE) signaling. In this way, the transmission frequency of the signaling configuring the position of the newly added symbol is higher than the RRC signaling, and the transmission reliability is higher than the DCI or UCI.

The symbol corresponding to the first SSB and the newly added symbol may occur synchronously within one SSB period, i.e., the period X of the symbol corresponding to the first SSB and the period Y of the newly added symbol are the same, for example, as shown in fig. 18. Alternatively, the period Y of the newly added symbol may be greater than the period X of the symbol corresponding to the first SSB, that is, Y is greater than X.

For example, the period Y of the newly added symbol may be predefined, for example, protocol defined. Alternatively, the period Y of the newly added symbol may be configured by signaling by the network device or the terminal device. The manner of configuring the period Y of the new symbol is similar to the manner of configuring the position of the new symbol, and specific reference may be made to the foregoing, and the description thereof will not be repeated here.

The above describes a way to enable a terminal device with a maximum processing bandwidth of less than 20 RBs to quickly acquire SSB (or acquire PBCH) information without changing the format of the SSB. Another way of enabling terminal devices having a maximum processing bandwidth of less than 20 RBs to quickly acquire SSB (or acquire PBCH) information is provided below. In particular, a new SSB format is provided, where the frequency range of the SSB is less than or equal to the maximum processing bandwidth of the terminal device, so that the terminal device can acquire SSB (or acquire PBCH) information.

Referring to fig. 19, a flow chart of another communication method provided by the present application is shown. The method is described by taking the network device and the terminal device as examples, it can be understood that the functions of the network device can be implemented by a chip applied to the network device, or implemented by other devices to support the network device, and the functions of the terminal device can be implemented by a chip applied to the terminal device, or implemented by other devices to support the terminal device. The method comprises the following steps:

s1901, the network device sends the second SSB to the terminal device. Correspondingly, the terminal device receives the second SSB. The second SSB in the method of fig. 19 corresponds to the first SSB in the second aspect or the fourth aspect of the summary.

Wherein the frequency range of the second SSB is less than or equal to the maximum processing bandwidth of the terminal device. The structure of the second SSB will be described in detail below.

In one example, when the SCS is 30kHz and the maximum processing bandwidth of the terminal device is 5MHz, the maximum processing bandwidth of the terminal device is 11 RBs. In this example, the frequency range of the first information is less than or equal to 11 RBs, and the first SSB portion is less than or equal to 11 RBs.

In one example, when the SCS is 30kHz and the maximum processing bandwidth of the terminal device is 5MHz, the maximum processing bandwidth of the terminal device is 12 RBs. In this example, the frequency range of the first information is less than or equal to 12 RBs, and the first SSB portion is less than or equal to 12 RBs.

In another example, when the SCS is 15kHz and the terminal device operates in a specific spectrum less than 3.6MHz, the maximum processing bandwidth of the terminal device is 11 RBs. In this example, the frequency range of the first information is less than or equal to 11 RBs, and the first SSB portion is less than or equal to 11 RBs.

In another example, when the SCS is 15kHz and the terminal device operates in a specific spectrum less than 3.6MHz, the maximum processing bandwidth of the terminal device is 12 RBs. In this example, the frequency range of the first information is less than or equal to 12 RBs, and the first SSB portion is less than or equal to 12 RBs.

Optionally, prior to step S1901, the network device may determine a second SSB.

And S1902, the terminal equipment acquires one or more of a physical broadcast channel, a synchronous signal and a main information block according to the second SSB.

Alternatively, the terminal device may perform cell search and time-frequency synchronization according to the second SSB.

In addition, the terminal device may perform RRM measurement, uplink beam selection, etc. according to the second SSB, and may perform other operations according to the second SSB, which is not limited herein.

Since the frequency range of the current SSB is 20 RBs (the first SSB in the method shown in fig. 3), and the maximum processing bandwidth of the terminal device is less than 20 RBs, the terminal device cannot receive all the information of the SSB when receiving the SSB. In the application, the frequency range of the SSB is smaller than or equal to the maximum processing bandwidth of the terminal equipment, so that the terminal equipment with the maximum processing bandwidth smaller than 20 RBs can acquire the SSB (or acquire the PBCH), thereby being beneficial to successful demodulation and decoding of the SSB by the terminal equipment. And the second SSB is mapped in the capacity range of the terminal equipment, and the terminal equipment is not required to carry out frequency hopping to receive SSB resources exceeding the capacity range of the terminal equipment, so that the time delay, the power consumption and the performance loss of the frequency hopping band can be reduced. In addition, the frequency range of the SSB sent by the network device is within the capability range of the terminal device, so that additional resource consumption of the network device can be avoided or reduced.

The first information will be described below in connection with the maximum processing bandwidth of the terminal device.

Example 3, assume that the maximum processing bandwidth of the terminal device is 11 RBs.

In example 3, the second SSB may correspond to 6 symbols or 7 symbols. It should be understood that the present application is only described by taking the example that the second SSB corresponds to 6 symbols or 7 symbols, and the second SSB may also correspond to more or fewer symbols, and the number of symbols corresponding to the second SSB is not specifically limited in the present application. The following is an exemplary description for 6 symbols and 7 symbols, respectively.

Example 3.1, the second SSB corresponds to 6 symbols, i.e., symbols 1-6.

It will be appreciated that in example 3.1, symbol 1 corresponds to a first time domain unit in the second or fourth aspect of the invention, symbol 2 corresponds to a second time domain unit in the second or fourth aspect of the invention, symbol 3 corresponds to a third time domain unit in the second or fourth aspect of the invention, and symbol 4 corresponds to a fourth time domain unit in the second or fourth aspect of the invention. Symbol 5 corresponds to a fifth time domain unit in the second or fourth aspect of the inventive content and symbol 6 corresponds to a sixth time domain unit in the second or fourth aspect of the inventive content.

In example 3.1, the PBCH information of 4 RBs may be punctured from the PBCH information of 48 RBs, i.e., the second SSB includes the PBCH information of 44 RBs. The PBCH information of 44 RBs corresponds to 4 symbols, and the number of RBs corresponding to each symbol is 11. For example, the second SSB may include PSS, SSS, a first PBCH portion, a second PBCH portion, a third PBCH portion, and a fourth PBCH portion, wherein PSS corresponds to symbol 1, the first PBCH portion corresponds to symbol 2, SSS corresponds to symbol 3, the second PBCH portion corresponds to symbol 4, the third PBCH portion corresponds to symbol 5, and the fourth PBCH portion corresponds to symbol 6.

Alternatively, the frequency domain resources of each of the first, second, third and fourth PBCH parts overlap with the frequency domain resources of the PSS, for example, as shown in fig. 20.

In one exemplary illustration, the relative positions of the PSS and SSS may be predefined, e.g., one symbol may be spaced between the PSS and SSS.

Example 3.2, the second SSB corresponds to 7 symbols, i.e., symbols 1-7.

It will be appreciated that in example 3.2, symbol 1 corresponds to a first time domain unit in the second or fourth aspect of the invention, symbol 2 corresponds to a second time domain unit in the second or fourth aspect of the invention, symbol 3 corresponds to a third time domain unit in the second or fourth aspect of the invention, and symbol 4 corresponds to a fourth time domain unit in the second or fourth aspect of the invention. Symbol 5 corresponds to a fifth time domain unit in the second or fourth aspect of the inventive content, symbol 6 corresponds to a sixth time domain unit in the second or fourth aspect of the inventive content, and symbol 7 corresponds to a ninth time domain unit in the second or fourth aspect of the inventive content.

The second SSB includes PBCH information of 48 RBs in example 3.2. The PBCH information of 48 RBs corresponds to 5 symbols. For example, the second SSB may include PSS, SSS, first PBCH portion, second PBCH portion, third PBCH portion, fourth PBCH portion, and fifth PBCH portion, wherein PSS corresponds to symbol 1, first PBCH portion corresponds to symbol 2, SSS corresponds to symbol 3, second PBCH portion corresponds to symbol 4, third PBCH portion corresponds to symbol 5, fourth PBCH portion corresponds to symbol 6, and fifth PBCH portion corresponds to symbol 7.

Optionally, the frequency domain resource of each of the first PBCH part, the second PBCH part, the third PBCH part and the fourth PBCH part overlaps with the frequency domain resource of the PSS.

Optionally, the frequency domain resources corresponding to each of the 5 symbols corresponding to the PBCH information in the second SSB, that is, symbol 2, symbol 4, symbol 5, symbol 6, and symbol 7, may be the same or different. For example, the frequency domain resources corresponding to the PBCH information on the symbol 2, the symbol 4, the symbol 5 and the symbol 6 are 11 RBs, and the frequency domain resources corresponding to the symbol 7 are 4 RBs, as shown in fig. 21. For another example, the PBCH information has 11 RBs in the frequency domain resources corresponding to symbol 2, symbol 4, symbol 5, and symbol 6, and 8 RBs in the frequency domain resources corresponding to symbol 7. For another example, the PBCH information has 11 RBs for the frequency domain resources corresponding to symbol 2 and symbol 4, 11 RBs for the frequency domain resources corresponding to symbol 5 and symbol 6, and 6 RBs for the frequency domain resources corresponding to symbol 7. Here, only some cases are listed, and the number of RBs corresponding to the PBCH information on each symbol is not limited, so long as the total number of RBs of the PBCH information on 5 symbols is 48, which can be regarded as an aspect of the present application.

Example 4, assume that the maximum processing bandwidth of the terminal device is 12 RBs.

In example 4, the second SSB may correspond to 6 symbols, such as symbols 1-6. It should be understood that the present application is only illustrated by taking the example that the second SSB corresponds to 6 symbols, and the second SSB may also correspond to more or fewer symbols, and the number of symbols corresponding to the second SSB is not specifically limited in the present application. An exemplary description is made below for 6 symbols.

It will be appreciated that in example 4, symbol 1 corresponds to a first time domain unit in the second or fourth aspect of the inventive content, symbol 2 corresponds to a second time domain unit in the second or fourth aspect of the inventive content, symbol 3 corresponds to a third time domain unit in the second or fourth aspect of the inventive content, and symbol 4 corresponds to a fourth time domain unit in the second or fourth aspect of the inventive content. Symbol 5 corresponds to a fifth time domain unit in the second or fourth aspect of the inventive content and symbol 6 corresponds to a sixth time domain unit in the second or fourth aspect of the inventive content.

In example 4, the second SSB includes PBCH information of 48 RBs, the PBCH information of 48 RBs corresponds to 4 symbols, and the number of RBs corresponding to each symbol is 12. For example, the second SSB may include PSS, SSS, first PBCH portion, second PBCH portion, third PBCH portion, and fourth PBCH portion, wherein PSS corresponds to symbol 1, first PBCH portion corresponds to symbol 2, SSS corresponds to symbol 3, second PBCH portion corresponds to symbol 4, third PBCH portion corresponds to symbol 5, and fourth PBCH portion corresponds to symbol 6, as shown in fig. 22.

The time domain resources, the frequency domain resources corresponding to the first information and the included information are described above in connection with the maximum processing bandwidth of the terminal device.

In the embodiment of the present application, the corresponding manner of PBCH information on the corresponding symbol in the second SSB may refer to the corresponding manner of the first information on the newly added symbol in the method described in fig. 3, and the description thereof will not be repeated here.

Alternatively, in the embodiment of the present application, symbols corresponding to PBCH information in the second SSB may be consecutive. For example, taking 3.1 or example 4 as an example, symbol 2 occupies the nth time domain resource, symbol 4 occupies the n+1th time domain resource, symbol 5 occupies the n+2th time domain resource, and symbol 6 occupies the n+3rd time domain resource. For another example, taking the 3.2 example, the symbol 2, the symbol 4, the symbol 5, the symbol 6, and the symbol 7 may be consecutive, for example, the symbol 2 occupies the nth time domain resource, the symbol 4 occupies the n+1th time domain resource, the symbol 5 occupies the n+2th time domain resource, the symbol 6 occupies the n+3rd time domain resource, and the symbol 7 occupies the n+4th time domain resource.

Alternatively, symbols corresponding to the PBCH information in the second SSB may be discontinuous. For example, taking 3.1 or example 4 above as an example, symbol 2 occupies the nth time domain resource, symbol 4 occupies the n+2th time domain resource, symbol 5 occupies the n+5th time domain resource, and symbol 6 occupies the n+7th time domain resource. For another example, taking the 3.2 as an example, symbol 2 occupies the nth time domain resource, symbol 4 occupies the n+2th time domain resource, symbol 5 occupies the n+5th time domain resource, symbol 6 occupies the n+7th time domain resource, and symbol 7 occupies the n+8th time domain resource.

The symbol corresponding to the PBCH information in the second SSB may or may not be in one slot.

In a possible example, the positions of the symbols corresponding to the PBCH information in the second SSB are all in front of the PSS, that is, symbol 1.

In another possible example, the positions of the symbols corresponding to the PBCH information in the second SSB are all behind the SSS, i.e. symbol 3.

In yet another possible example, a first part of symbols in the symbols corresponding to the PBCH information in the second SSB are in front of the PSS, that is, symbol 1; the second partial symbol follows the SSS, symbol 3; the third part of symbols is intermediate the PSS and SSS, i.e. intermediate symbol 1 and symbol 3.

In another possible example, part of the symbols corresponding to the PBCH information in the second SSB is before the PSS, that is, symbol 1, and the rest of the symbols are intermediate between the PSS and the SSS, that is, between symbol 1 and symbol 3.

In another possible example, a part of symbols in the second SSB corresponding to the PBCH information is after the SSS, i.e. symbol 3, and the rest of symbols are in the middle of the PSS and the SSS, i.e. in the middle of symbol 1 and symbol 3.

The position of the symbol corresponding to the PBCH information in the second SSB may be predetermined, or may be configured by the terminal device or the network device through signaling. The specific configuration manner may refer to the manner of configuring the position of the newly added symbol in the method described in fig. 3, and the repetition is not repeated.

In one exemplary illustration, the symbols corresponding to the PBCH information in the second SSB may occur within one legacy SSB period. Alternatively, symbols corresponding to the PBCH information in the second SSB may be distributed in different conventional SSB periods. Wherein. The conventional SSB may be an SSB configured for a broadband terminal device, such as the first SSB in the method described in fig. 3, and the differences between the conventional SSB and the second SSB are described below by taking the first SSB as an example.

The period of the second SSB may be the same as or greater than the period of the first SSB, for example, 20ms, and 40ms.

The period of the second SSB may be predefined or configured by signaling by the terminal device or the network device. The specific configuration manner may refer to the manner of configuring the position of the newly added symbol in the method described in fig. 3, and the repetition is not repeated.

The method provided by fig. 3 or fig. 19 enables the terminal device with the maximum processing bandwidth smaller than 20 RBs to acquire SSBs (or acquire PBCHs), which is helpful for the terminal device to successfully demodulate and decode SSBs, and the time required for acquiring SSB (or acquiring PBCHs) information in the method provided by fig. 3 or fig. 19 is shorter, so that the time delay of communication behaviors such as time-frequency synchronization, cell search and the like can be reduced, and the method is also beneficial for the terminal device to save energy and promote user experience. In addition, by the method provided in fig. 3 or fig. 19, the terminal device is not required to perform frequency hopping to receive SSB resources beyond the self-capability range, so that the delay, the power consumption and the performance loss from the frequency hopping band can be reduced.

The foregoing describes two methods to enable a terminal device with a maximum processing bandwidth of less than 20 RBs to acquire SSB (or acquire PBCH) information. As can be seen from the methods shown in fig. 3 and 19, compared to the current method of transmitting SSB information through 4 symbols, the terminal device in the present application needs more symbols, such as symbol 5 to symbol 6, and such as symbol 5 to symbol 7, when acquiring SSB (or acquiring PBCH) information. For these newly added symbols, the terminal device and the network device need to determine the positions of these symbols, and for this purpose, the present application also provides a method for determining the positions of the newly added symbols.

It should be understood that the "new symbol" is only a naming for distinguishing from the 4 symbols required for transmitting SSB currently, and is not limited to the new symbols, specifically, the "new symbol" in the present application may refer to symbols corresponding to the first information in the method in fig. 3, for example, symbol 5 and symbol 6 in example 1.1, symbol 5, symbol 6 and symbol 7 in example 1.2, symbol 5 and symbol 6 in example 2, etc., or symbols 5 to symbol 6 related to example 3.1 or example 4 in the method in fig. 19, or symbols 5 to symbol 7 related to example 3.2 in the method in fig. 19.

It should be noted that, the method provided below may be applied to the method described in fig. 3 or fig. 19, and may also be applied to other scenarios where symbols are added, so long as the network device and the terminal device need more than 4 symbols when transmitting SSB, the method provided by the present application may be used to determine the positions of the exceeded symbol portions.

Referring to fig. 23, a flow chart of a communication method according to the present application is illustrated by taking 2 symbols as an example, and if the newly added symbols are more or less symbols, the indication information may indicate the positions of the newly added symbols by a similar method.

It should be understood that the indication information is only an exemplary naming, and the indication information may be further described as configuration information, time-frequency resource information, newly added symbol information, time domain information, etc., and the naming of the information is not specifically limited herein.

The method is described by taking the network device and the terminal device as examples, it can be understood that the functions of the network device can be implemented by a chip applied to the network device, or implemented by other devices to support the network device, and the functions of the terminal device can be implemented by a chip applied to the terminal device, or implemented by other devices to support the terminal device. The method comprises the following steps:

s2301, the network device acquires the instruction information.

S2302, the terminal device acquires the instruction information.

The indication information is used for determining the position of the newly added symbol 1 corresponding to the SSB 1.

In one exemplary illustration, S2301 may be understood as a location where the network device obtains the new symbol 1 corresponding to the SSB (or obtains the PBCH) 1, and S2302 may be understood as a location where the terminal device obtains the new symbol 1 corresponding to the SSB (or obtains the PBCH) 1.

Optionally, the indication information is further used to determine the position of the new symbol 2 corresponding to the SSB 2. Alternatively, it may be understood that the network device and the terminal device may also determine the location of the new symbol 2 corresponding to the SSB 2.

The following description will take the example that the newly added symbol 1 includes the symbol a and the symbol b, and the newly added symbol 2 includes the symbol c and the symbol d. Wherein SSB1 may correspond to the first SSB in the method of fig. 3, and symbol a and symbol b may correspond to symbol 5 and symbol 6 in the method of fig. 3, respectively. Alternatively, SSB1 may correspond to the second SSB in the method of fig. 19, and symbol a and symbol b may correspond to symbol 5 and symbol 6 in the method of fig. 19. SSB2 may correspond to the second SSB of any one of the first to fourth aspects of the invention, and symbol c and symbol d may correspond to the seventh and eighth time domain units of any one of the first to fourth aspects of the invention, respectively.

The relationship between SSB1 and the added symbol 1 and the relationship between SSB2 and the added symbol 2 may be referred to specifically as the relationship between the first SSB and the added symbol (i.e. symbol 5 and symbol 6) in the method described in fig. 3, or the relationship between the second SSB and the added symbol (i.e. symbol 5 and symbol 6) in the method described in fig. 19, which will not be repeated here.

In one possible implementation, the indication information may be predefined, i.e. the network device and the terminal device may obtain the indication information via predefined information. It is also understood that the position of the newly added symbol 1 corresponding to SSB1 and/or the position of the newly added symbol 2 corresponding to SSB2 is predefined. Alternatively, it is also understood that the position determining rule is predefined, wherein the position determining rule is a rule for determining the position of the newly added symbol 1 corresponding to SSB1 and/or the position of the newly added symbol 2 corresponding to SSB 2.

In another possible implementation manner, the manner in which the network device obtains the indication information may be: the network device determines the indication information, and it may also be understood that the position of the new symbol 1 corresponding to the SSB1 and/or the position of the new symbol 2 corresponding to the SSB2 may be determined by the network device. Optionally, the network device may indicate to the terminal device the position of the new symbol 1 corresponding to SSB1 and/or the position of the new symbol 2 corresponding to SSB 2. Correspondingly, the manner of acquiring the indication information by the terminal device may be: indication information from a network device is received.

In another possible implementation manner, the manner in which the terminal device obtains the indication information may: the terminal device determines the indication information. It will also be appreciated that the position of the new symbol 1 corresponding to SSB1 and/or the position of the new symbol 2 corresponding to SSB2 may be determined by the terminal device. Optionally, the terminal device may further indicate to the network device the position of the new symbol 1 corresponding to SSB1 and/or the position of the new symbol 2 corresponding to SSB 2. Accordingly, the manner in which the network device obtains the indication information may be: and receiving indication information from the terminal equipment.

Note that, the indication information of the new symbol 1 corresponding to the indication SSB1 and the indication information of the new symbol 2 corresponding to the indication SSB2 may be the same indication information or may be different indication information, and are not particularly limited herein.

Alternatively, the position of the SSB corresponding to the newly added symbol may be predefined. For example, the position of SSB1 corresponding to newly added symbol 1 is predefined, and for example, the position of SSB2 corresponding to newly added symbol 2 is predefined. The positions of SSB1 may be understood as positions of the remaining 4 symbols (excluding the newly added symbol 1) of SSB1, for example, symbols 1 to 4 of the first SSB in the method described above in fig. 3, symbols 1 to 4 of the first SSB in the method described above in fig. 19, and so on. The remaining 4 symbols corresponding to SSB1 may correspond to the first set of time domain units in the fifth and sixth aspects of the summary. The position of SSB2 may be understood as the position of the remaining 4 symbols of SSB2 (excluding the newly added symbol 2), and the remaining 4 symbols of SSB2 are similar to the remaining 4 symbols of SSB1, and will not be described here. The remaining 4 symbols corresponding to SSB2 may correspond to the second set of time domain units in the fifth and sixth aspects of the summary.

Specifically, the position of the newly added symbol 1 and the position of the newly added symbol 2 will be described in detail below.

It should be noted that S2301 and/or S2302 may be optional steps.

S2303, the network device sends a signal at the position of the newly added symbol 1. Correspondingly, the terminal equipment receives the signal at the position of the newly added symbol 1.

Optionally, the network device sends a signal at the position of the newly added symbol 2. Correspondingly, the terminal equipment receives the signal at the position of the newly added symbol 2.

It should be understood that the process of transmitting signals by the network device and the terminal device at the position of the newly added symbol 1 and the process of transmitting signals by the network device and the terminal device at the position of the newly added symbol 2 may refer to the process of transmitting the first SSB and the first information by the network device and the terminal device in the method described in fig. 3. Alternatively, reference may be made to the procedure for the network device and the terminal device to transmit the second SSB in the method described in fig. 19, and the description will not be repeated here.

In the embodiment of the application, the terminal equipment and the network equipment can transmit the SSB information at the corresponding symbol positions by definitely adding the positions of the symbols. Especially for terminal equipment with maximum processing bandwidth less than 20 RBs, the network equipment can send SSB information on the newly added symbol, and the terminal equipment can receive SSB information on the newly added symbol, so that the terminal equipment can acquire SSB (or acquire PBCH) complete information as much as possible, thereby facilitating successful demodulation and decoding of SSB by the terminal equipment, further facilitating rapid completion of processes such as cell search and random access by the terminal equipment, reducing time delay of accessing the terminal equipment into the network, and improving user experience of the terminal equipment. In addition, by reducing the time consumption of the terminal equipment in the processes of cell search, random access and the like, the power consumption of the terminal equipment can be further reduced, and the cruising ability of the terminal equipment can be prolonged.

The positions of the newly added symbol 1 and the newly added symbol 2 are described below in connection with the SSB mode.

When SCS is 30kHz, there are two types of SSB modes: case B and Case C.

For SSB mode Case B, the index of the first symbol of the candidate SSB is {4,8,16,20} +18×n, where when the carrier frequency is less than or equal to 3GHz, the value of n is 0, where index 0 corresponds to the first symbol in the first slot in one half frame. For SSB mode Case C, the index of the first symbol of the candidate SSB is {2,8} +14×n, where when the non-shared spectrum channel access, the non-paired spectrum operation, and the carrier frequency is less than or equal to 1.88GHz, the value of n is {0,1}.

For Case B, there are 4 SSBs within one field. The indices of the 4 SSBs are {0,1,2,3}, respectively. The first symbol of SSB with SSB index 0 has index 4, the first symbol of SSB with SSB index 1 has index 8, the first symbol of SSB with SSB index 2 has index 16, and the first symbol of SSB with SSB index 3 has index 20. For SSBs with SSB index 0 and SSBs with SSB index 1, the middle is 4 symbols apart. For SSBs with SSB index 1 and SSBs with SSB index 2, the middle is spaced 8 symbols apart.

For example 1, taking Case B as an example, SSB1 may correspond to four symbols with symbol indexes 4, 5, 6, and 7, and SSB2 corresponds to four symbols with symbol indexes 8, 9, 10, and 11. SSB3 corresponds to four symbols with symbol indexes 16, 17, 18, 19, and SSB4 corresponds to four symbols with symbol indexes 20, 21, 22, 23.

For Case C, there are 4 SSBs within one field. The index of the first symbol of the 4 SSBs is {2,8,16,22}, respectively. The first symbol of SSB with SSB index 0 has index 2, the first symbol of SSB with SSB index 1 has index 8, the first symbol of SSB with SSB index 2 has index 16, and the first symbol of SSB with SSB index 3 has index 22. For SSBs with SSB index 0 and SSBs with SSB index 1, the middle is spaced 6 symbols apart. For SSBs with SSB index 1 and SSBs with SSB index 2, the middle is spaced 8 symbols apart. For SSBs with SSB index 2 and SSBs with SSB index 3, the middle is spaced 6 symbols apart.

For example 2, taking Case C as an example, SSB1 may correspond to four symbols with symbol indexes 2, 3, 4, and 5, and SSB2 corresponds to four symbols with symbol indexes 8, 9, 10, and 11. SSB3 corresponds to four symbols with symbol indexes 16, 17, 18, 19, and SSB4 corresponds to four symbols with symbol indexes 22, 23, 24, 25.

The positions of the newly added symbol 1 and the newly added symbol 2 are described below with reference to Case B and Case C, respectively.

In a possible implementation manner, there are 4 SSBs in Case B or Case C, the indication information may indicate the positional relationship between the first SSB and the new symbol, and the positional relationship between the second SSB and the new symbol, and the positional relationship between the third SSB and the new symbol, and the positional relationship between the fourth SSB and the new symbol may refer to the positional relationship between the first SSB and the new symbol, and the positional relationship between the second SSB and the new symbol, respectively.

Example 5, the two symbols included in the new added symbol 1 are consecutive and the two symbols included in the new added symbol 2 are consecutive. In example 5.1, the new symbol 1 and the new symbol 2 may be located behind SSB 2.

In connection with example 1 above, the newly added symbol 1 and the newly added symbol 2 may be located after the SSB2, that is, after the symbol with the symbol index of 11, specifically, may be between the symbol with the symbol index of 11 and the symbol with the symbol index of 16. The new added symbol 3 corresponding to SSB3 and the new added symbol 4 corresponding to SSB4 may be located after SSB4, that is, after the symbol with symbol index 23. For example, as shown in fig. 24.

Example 6, the two symbols included in the new added symbol 1 are consecutive and the two symbols included in the new added symbol 2 are consecutive. In example 5.2, the new symbol 1 may be located in front of SSB1 and the new symbol 2 may be located behind SSB 2.

In connection with example 1 above, the newly added symbol 1 may be located in front of SSB1, i.e., in front of the symbol with symbol index 4. The newly added symbol 2 may be located after the SSB2, that is, after the symbol with the symbol index of 11, specifically, may be between the symbol with the symbol index of 11 and the symbol with the symbol index of 16. The new symbol 3 corresponding to SSB3 may be located before SSB3, that is, before the symbol with the symbol index of 16, specifically, may be between the symbol with the symbol index of 11 and the symbol with the symbol index of 16. The new symbol 4 corresponding to SSB4 may be located after SSB4, i.e. after the symbol with symbol index 23. For example, as shown in fig. 25.

In connection with example 2 above, the newly added symbol 1 may be located in front of SSB1, i.e., in front of the symbol with symbol index 2. The newly added symbol 2 may be located after the SSB2, that is, after the symbol with the symbol index of 11, specifically, may be between the symbol with the symbol index of 11 and the symbol with the symbol index of 16. The new symbol 3 corresponding to SSB3 may be located before SSB3, that is, before the symbol with the symbol index of 16, specifically, may be between the symbol with the symbol index of 11 and the symbol with the symbol index of 16. The new symbol 4 corresponding to SSB4 may be located after SSB4, i.e. after the symbol with symbol index 25. For example, as shown in fig. 26.

In example 6, it can be appreciated that the first rule is that the position of the newly added symbol is in front of the corresponding SSB and the second rule is that the position of the newly added symbol is behind the corresponding SSB are used alternately. For example, in one field, a new symbol corresponding to SSB with index 0 is before the SSB, a new symbol corresponding to SSB with index 1 is after the SSB, a new symbol corresponding to SSB with index 2 is before the SSB, and a new symbol corresponding to SSB with index 3 is after the SSB.

Example 7, the two symbols included in the new added symbol 1 are consecutive and the two symbols included in the new added symbol 2 are consecutive. In example 6.1, the new symbol 1 may be located behind SSB1, in particular between SSB1 and SSB2, and the new symbol 2 may be located behind SSB 2.

In connection with example 2 above, the newly added symbol 1 may be located after SSB1, that is, after the symbol with symbol index 5, specifically, between the symbol with symbol index 5 and the symbol with symbol index 8. The newly added symbol 2 may be located after SSB2, i.e. after the symbol with symbol index 11. The new symbol 3 corresponding to SSB3 may be located after SSB3, that is, after the symbol with the symbol index of 19, specifically, may be between the symbol with the symbol index of 19 and the symbol with the symbol index of 22. For example, as shown in fig. 27.

Example 8, the two symbols included in the new added symbol 1 are consecutive and the two symbols included in the new added symbol 2 are consecutive. In example 6.2, the new symbol 1 may be located in front of SSB1 and the new symbol 2 may be located in front of SSB 2.

In connection with example 2 above, the newly added symbol 1 may be located in front of SSB1, i.e., in front of the symbol with symbol index 2. The newly added symbol 2 may be located before the SSB2, that is, after the symbol with the symbol index of 8, specifically, between the symbol with the symbol index of 5 and the symbol with the symbol index of 8. The new symbol 3 corresponding to SSB3 may be located before SSB3, that is, before the symbol with the symbol index 16. The new symbol 4 corresponding to SSB4 may be located at the rear of SSB4, that is, before the symbol with symbol index 22, specifically, between the symbol with symbol index 19 and the symbol with symbol index 22. For example, as shown in fig. 28.

Example 9, the two symbols included in the new added symbol 1 are discontinuous and the two symbols included in the new added symbol 2 are discontinuous. In example 6.4, symbol a in the newly added symbol 1 may be located before SSB 1. Symbol b may be located after SSB1, and may specifically be between SSB1 and SSB 2. The symbol c in the newly added symbol 2 may be located before the SSB2, and may specifically be between the SSB1 and the SSB 2. Symbol d may be located after SSB 2.

In connection with example 2 above, symbol a may be located before SSB1, i.e., before the symbol with symbol index 2. Symbol b may be located after SSB1, i.e. after the symbol with symbol index 5, in particular between the symbol with symbol index 5 and the symbol with symbol index 8. Symbol c may be located before SSB2, i.e. before the symbol with symbol index 8. Symbol d may be located after SSB2, i.e. after the symbol with symbol index 22.

The symbol e in the newly added symbol 3 may be located before the SSB3, that is, before the symbol with the symbol index of 16. The symbol f in the newly added symbol 3 may be located after the SSB3, that is, after the symbol with the symbol index of 19, specifically, may be between the symbol with the symbol index of 19 and the symbol with the symbol index of 22. The symbol g in the newly added symbol 4 may be located before the SSB4, that is, before the symbol with the symbol index of 22, specifically, may be between the symbol with the symbol index of 19 and the symbol with the symbol index of 22. The symbol h in the newly added symbol 4 may be located after the SSB4, that is, after the symbol with the symbol index of 25. For example, as shown in fig. 29.

Example 10, the new symbol 1 and the new symbol 2 may also be located in front of SSB1, as shown in fig. 30.

Example 11, the newly added symbol 1 and the newly added symbol 2 may also be located between SSB1 and SSB2, as shown in fig. 31.

In the method provided by the application, the SSB1 and the newly added symbol 1 can share the PSS and the SSS included in the SSB1, wherein the PSS occupies a symbol with a symbol index of 4, and the SSS occupies a symbol with a symbol index of 6. The terminal device can better demodulate and/or decode the corresponding SSB1 by receiving part of the information of the SSB1 and the information carried by the newly added symbol 1.

Similarly, SSB2 and newly added symbol 2 may share PSS and SSS included in SSB2, where PSS occupies a symbol with a symbol index of 8 and SSS occupies a symbol with a symbol index of 10. The terminal device can better demodulate and/or decode the corresponding SSB2 by receiving part of the information of the SSB2 and the information carried by the newly added symbol 2.

SSB3 and newly added symbol 3 may share PSS and SSS included in SSB3, where PSS occupies a symbol with a symbol index of 16 and SSS occupies a symbol with a symbol index of 18. The terminal device can better demodulate and/or decode the corresponding SSB3 by receiving part of the information of the SSB3 and the information carried by the newly added symbol 3.

SSB4 and newly added symbol 4 may share PSS and SSS included in SSB4, where PSS occupies a symbol of symbol index 20 and SSS occupies a symbol of symbol index 11. The terminal device can better demodulate and/or decode the corresponding SSB4 by receiving part of the information of the SSB4 and the information carried by the newly added symbol 4.

The above describes 6 positional relationships of SSBs with corresponding newly added symbols. In Case B or Case C mode based on SCS of 30kHz, if a rule for determining the position of the newly added symbol is required, the rule described in one of the above examples 5 to 11 may be adopted, so that the terminal device and the network device may determine the position of the newly added symbol 1 and/or the newly added symbol 2 according to the rule. If the position determination rule of the new symbol is not needed, the network device may determine the position of the new symbol, and this action may be an implementation action of the network device. In a possible implementation, candidate locations for the newly added symbol may be predefined, and the network device may select (or determine) the location of the newly added symbol 1 and/or the newly added symbol 2 among the candidate locations.

It should be understood that the "position determination rule requiring the new symbol" may be understood as "a position requiring the new symbol" and, correspondingly, the "position determination rule not requiring the new symbol" may be understood as "a position not requiring the new symbol".

In a possible implementation manner, the network device may indicate whether the terminal device needs the position determining rule of the new symbol, or the terminal device indicates whether the network device needs the position determining rule of the new symbol. The method for determining whether the network device indicates that the terminal device needs the newly added symbol is similar to the method for determining whether the network device indicates that the terminal device needs the newly added symbol, and the method for determining whether the network device indicates that the terminal device needs the newly added symbol is described below. The location determination rule of the terminal device indicating whether the network device needs the newly added symbol may refer to a related description of the location determination rule of the network device indicating whether the terminal device needs the newly added symbol.

In a specific implementation, the network device may indicate, by 1 bit, whether a position determination rule of a new symbol is required. For example, a bit state of 0 indicates that a position determination rule for a new symbol is required, and a bit state of 1 indicates that a position determination rule for a new symbol is not required. For another example, the bit state is 1, indicating that a position determination rule of a new symbol is required, and the bit state is 0, indicating that a position determination rule of a new symbol is not required.

In a specific implementation, the network device may indicate whether a new symbol is needed by carrying a location determination rule in the signaling for a particular field. For example, the signaling carries the specific field, which indicates that the position determining rule of the new symbol is needed, otherwise, indicates that the position determining rule of the new symbol is not needed. For another example, the signaling does not carry the specific field, which indicates that the position determining rule of the new symbol is needed, otherwise, indicates that the position determining rule of the new symbol is not needed.

The network device may also indicate in other ways whether a position determination rule of a new symbol is needed, which is not specifically limited herein.

If the position determining rule of the new symbol is needed, the network device may also indicate the position determining rule of the new symbol to the terminal device, or the terminal device may indicate the position determining rule of the new symbol to the network device. The method of the network device indicating the position determining rule of the new symbol is similar to the method of the terminal device indicating the position determining rule of the new symbol, and the method is described below by taking the position determining rule of the network device indicating the new symbol as an example.

In one possible implementation, the network device may determine the rule by one or more bits for the location of the newly added symbol.

For example, the position determination rule of the newly added symbol in Case B mode is indicated by 1 bit, and if the bit state is 0, the rule described in example 5 is adopted for Case B. If the bit state is 1, this means that the rule described in example 6 is adopted for Case B.

For another example, the position determination rule of the newly added symbol under Case C is indicated by 2 bits. If the bit state is 00, this indicates that the rule described in example 7 is applied to Case C. If the bit state is 01, this indicates that the rule described in example 8 is applied for Case C. If the bit state is 10, this means that the rule described in example 6 is applied for Case C. If the bit state is 11, this means that the rule described in example 9 is applied to Case C.

The above is an analysis of the position rule for the newly added 2 symbols. The position rule for the newly added symbol including 3 symbols, 4 symbols, or even more symbols may be referred to as the position rule for the newly added 2 symbols. For example, according to different SSB modes, usable symbol positions are analyzed, and then placement rules of newly added symbols are determined, and the description is not expanded one by one.

The embodiment of the application can reduce the blind test times of the terminal equipment by determining the position of the newly added symbol in advance, thereby being convenient for the UE to save energy. In addition, the network device can dynamically adjust the position of the newly added symbol according to the current symbol occupation condition, so as to avoid collision with other channels or signals or resources. For example, the other channels are physical downlink control channels (physical downlink control channel, PDCCH).

The above describes a method of transmitting SSBs between a network device and a terminal device. In the above method, the terminal device may relax the processing time. Specifically, the terminal device may relax the uplink processing time and/or the downlink processing time. In the above behavior example, the terminal device may relax at least one of the following processing times: time to process PUCCH, time to process PUSCH, time to channel estimation, time to modulation, time to coding, time to process SRS, etc. The following acts may be exemplified, the terminal device may relax at least one of the following processing times: the time to process PDCCH, the time to process PDSCH, the time to channel estimate, the time to demodulate, the time to decode, the time to calculate CSI, etc.

In one exemplary illustration, a "relaxation process time" may be understood as an extension process time. The method can save resources in other aspects, such as frequency resources and the like, by occupying more time domain resources. Cost can be saved, manufacturing process can be simplified, chip area can be reduced, and the like.

Different relaxation modes can be corresponded to different SCS. That is, the relaxation pattern corresponding to the first SCS down-processing time is different from the relaxation pattern corresponding to the second SCS down-processing time. Assuming that the processing time before the first SCS is relaxed is the same as the processing time before the second SCS is relaxed, the processing time under the first SCS corresponds to the relaxing mode that the processing time after the relaxing is X1 times of the processing time before the relaxing. The second SCS is relaxed in such a way that the processing time after relaxation is X2 times the processing time before relaxation. Wherein X1 and X2 may be different.

For example, assume that the first SCS is 15kHz. The second SCS was 30kHz. For example, X1 has a value of 2 and X2 has a value of 3. For another example, X1 has a value of 3 and X2 has a value of 4. For another example, X1 has a value of 2 and X2 has a value of 4. For another example, X1 has a value of 4 and X2 has a value of 2.

Illustratively, X1 and X2 may be predefined by a protocol, may be configured by a network device, or may be a capability of a terminal device.

Optionally, if X1 and X2 are capabilities of the terminal device, the terminal device may report X1 and/or X2 to the network device. In one exemplary illustration, the terminal device may report X1 and/or X2 via one or more bits. Alternatively, X1 and/or X2 may also be reported via one or more fields.

Optionally, the terminal device may also report to the network device whether X1 and X2 are the same. That is, the terminal device may report to the network device whether the relaxation manner corresponding to the first SCS lower processing time is the same as the relaxation manner corresponding to the second SCS lower processing time.

In a specific implementation manner, the terminal device may report, through one or more bits, whether the relaxation manner corresponding to the processing time under the first SCS is the same as the relaxation manner corresponding to the processing time under the second SCS. For example, the terminal device may report whether the relaxation manner corresponding to the processing time under the first SCS is the same as the relaxation manner corresponding to the processing time under the second SCS by one bit. The bit state of 1 indicates that the relaxation pattern corresponding to the processing time under the first SCS is the same as the relaxation pattern corresponding to the processing time under the second SCS. The bit state of 0 indicates that the relaxation pattern corresponding to the processing time under the first SCS is not the same as the relaxation pattern corresponding to the processing time under the second SCS.

Alternatively, one or more fields may indicate whether the relaxation pattern corresponding to the processing time under the first SCS is the same as the relaxation pattern corresponding to the processing time under the second SCS. For example, whether the relaxation manner corresponding to the first SCS lower processing time is the same as the relaxation manner corresponding to the second SCS lower processing time is indicated by one field.

By way of illustration, whether the relaxation pattern corresponding to the processing time under the first SCS is the same as the relaxation pattern corresponding to the processing time under the second SCS is explicitly indicated by a field.

For another example, the field has a value of y, which indicates that the relaxation mode corresponding to the processing time under the first SCS is the same as the relaxation mode corresponding to the processing time under the second SCS. The field value is n, which indicates that the relaxation mode corresponding to the processing time under the first SCS is different from the relaxation mode corresponding to the processing time under the second SCS.

In yet another example, whether the relaxation pattern corresponding to the processing time under the first SCS is the same as the relaxation pattern corresponding to the processing time under the second SCS is implicitly indicated by a field. If this field is carried, it means that the relaxation mode corresponding to the processing time under the first SCS is the same as the relaxation mode corresponding to the processing time under the second SCS. This field is not carried, indicating that the relaxation pattern corresponding to the processing time under the first SCS is not the same as the relaxation pattern corresponding to the processing time under the second SCS.

It should be noted that the above-mentioned relaxation method of the processing time may be performed independently of the above-mentioned method of transmitting SSB.

Based on the same inventive concept as the method embodiment, the embodiment of the present application provides a communication apparatus, which may have a structure as shown in fig. 32, including a communication unit 3201 and a processing unit 3202.

In one implementation, the communication apparatus may be specifically configured to implement the method performed by the terminal device in the embodiment of fig. 3, where the apparatus may be the terminal device itself, or may be a chip or a chipset in the terminal device or a part of a chip for performing the functions of the related method. Wherein the communication unit 3201 is configured to receive the first SSB portion on the first resource. A processing unit 3202, configured to obtain one or more of a physical broadcast channel, a synchronization signal, and a main information block according to at least a first SSB portion in an SSB burst window.

Wherein the first resource is part of the resources used by the first SSB. The first SSB includes the first SSB portion and a second SSB portion, the first SSB being one SSB within one SSB burst window. Wherein the first information within the SSB burst window is associated with the same SSB index as the first SSB portion. The time domain resource location of the resource used for the first information transmission is different from the time domain resource location of the first resource. The frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource. And the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment. The sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device.

Optionally, the positions of the first time domain unit to the fourth time domain unit are predefined; the processing unit 3202 is further configured to: and obtaining indication information, wherein the indication information is used for determining the positions of the fifth time domain unit and the sixth time domain unit.

In one implementation, the communication apparatus may be specifically configured to implement the method performed by the network device in the embodiment of fig. 3, where the apparatus may be the network device itself, or may be a chip or a chipset in the network device or a part of a chip for performing the functions of the related method. Wherein the communication unit 3201 is configured to send the first SSB. The first SSB comprises a first SSB part and a second SSB part, wherein the first SSB part is transmitted on a first resource, the first resource is a part of the resource used by the first SSB, and the first SSB is one SSB in one SSB burst window; wherein the first information within the SSB burst window associates the same SSB index with the first SSB portion; the time domain resource position of the resource used for the first information transmission is different from the time domain resource position of the first resource; the frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource; the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment; the sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB partial transmission is greater than the maximum processing bandwidth of the terminal device.

Optionally, the positions of the first time domain unit to the fourth time domain unit are predefined; the processing unit 3202 is further configured to: and determining the fifth time domain unit and the sixth time domain unit according to indication information, wherein the indication information is used for determining the positions of the fifth time domain unit and the sixth time domain unit.

Optionally, the communication unit 3201 is further configured to: and sending the indication information to the terminal equipment.

In one implementation, the communication apparatus may be specifically configured to implement the method performed by the terminal device in the embodiment of fig. 19, where the apparatus may be the terminal device itself, or may be a chip or a chipset in the terminal device or a part of a chip for performing the functions of the related method. Wherein, the communication unit 3201 is configured to receive a first SSB, and a frequency range of the first SSB is less than or equal to a maximum processing bandwidth of the terminal device; a processing unit 3202, configured to obtain one or more of a physical broadcast channel, a synchronization signal, and a main information block according to the first SSB.

Optionally, the positions of the first time domain unit to the fourth time domain unit are predefined, and the processing unit 3202 is further configured to: the terminal equipment acquires indication information, wherein the indication information is used for determining the positions of the fifth time domain unit and the sixth time domain unit.

In one implementation, the communication apparatus may be specifically configured to implement the method performed by the network device in the embodiment of fig. 19, where the apparatus may be the network device itself, or may be a chip or a chipset in the network device or a part of a chip for performing the functions of the related method. The processing unit 3202 is configured to determine a first SSB, where a frequency range of the first SSB is less than or equal to a maximum processing bandwidth of the terminal device; a communication unit 3201, configured to send the first SSB to the terminal device.

In one implementation, the communication apparatus may be specifically configured to implement the method performed by the terminal device in the embodiment of fig. 23, where the apparatus may be the terminal device itself, or may be a chip or a chipset in the terminal device or a part of a chip for performing the functions of the related method. The processing unit 3202 is configured to obtain indication information, where the indication information is used to determine positions of a first time domain unit and a second time domain unit, and the first time domain unit and the second time domain unit are used to determine a first SSB with a first set of time domain unit symbols, where the first set of time domain units includes 4 time domain unit symbols, and the positions of the first set of time domain units are predefined. A communication unit 3201 for receiving a signal at a time domain position indicated by the indication information.

In one implementation, the communication apparatus may be specifically configured to implement the method performed by the network device in the embodiment of fig. 23, where the apparatus may be the network device itself, or may be a chip or a chipset in the network device or a part of a chip for performing the functions of the related method. The processing unit 3202 is configured to obtain indication information, where the indication information is used to determine positions of a first time domain unit and a second time domain unit, and the first time domain unit and the second time domain unit are used to determine a first SSB with a first set of time domain unit symbols, where the first set of time domain units includes 4 time domain unit symbols, and the positions of the first set of time domain units are predefined. A communication unit 3201 for transmitting a signal at a time domain position indicated by the indication information.

Optionally, the communication unit 3201 is further configured to send indication information to the terminal device.

The division of the modules in the embodiments of the present application is schematically only one logic function division, and there may be another division manner in actual implementation, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, or may exist separately and physically, or two or more modules may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. It will be appreciated that the function or implementation of each module in the embodiments of the present application may further refer to the relevant description of the method embodiments.

In a possible manner, the communication apparatus may be a communication device or a chip in a communication device, where the communication device may be a terminal device in the foregoing embodiment or a network device in the foregoing embodiment, as shown in fig. 33. The apparatus includes a processor 3301 and a communication interface 3302, and may also include a memory 3303. Among other things, the processing unit 3202 may be the processor 3301. The communication unit 3201 may be a communication interface 3302.

The processor 3301 may be a CPU, or a digital processing unit, or the like. The communication interface 3302 may be a transceiver, or may be an interface circuit such as a transceiver circuit, or may be a transceiver chip, or the like. The apparatus further comprises: the memory 3303 is used for storing programs executed by the processor 3301. The memory 3303 may be a nonvolatile memory such as a Hard Disk Drive (HDD) or a Solid State Drive (SSD), or may be a volatile memory (RAM). Memory 3303 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such.

The processor 3301 is configured to execute program codes stored in the memory 3303, and is specifically configured to execute the actions of the processing unit 3202, which are not described herein. The communication interface 3302 is specifically configured to perform the actions of the communication unit 3201, which are not described herein.

The specific connection medium between the communication interface 3302, the processor 3301, and the memory 3303 is not limited in the embodiment of the present application. In the embodiment of the present application, the memory 3303, the processor 3301 and the communication interface 3302 are connected through a bus 3304 in fig. 33, the bus is shown by a thick line in fig. 33, and the connection manner between other components is only schematically illustrated, but not limited thereto. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 33, but not only one bus or one type of bus.

The embodiment of the application also provides a computer readable storage medium for storing computer software instructions required to be executed by the processor, and the computer readable storage medium contains a program required to be executed by the processor.

The embodiment of the application also provides a communication system, which comprises a communication device for realizing the functions of the terminal equipment in the embodiment of fig. 3 and a communication device for realizing the functions of the network equipment in the embodiment of fig. 3.

The embodiment of the application also provides a communication system, which comprises a communication device for realizing the functions of the terminal equipment in the embodiment of fig. 19 and a communication device for realizing the functions of the network equipment in the embodiment of fig. 19.

The embodiment of the application also provides a communication system, which comprises a communication device for realizing the functions of the terminal equipment in the embodiment of fig. 23 and a communication device for realizing the functions of the network equipment in the embodiment of fig. 23.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims

1. A method of communication, the method comprising:

the method comprises the steps that terminal equipment receives a first synchronization signal/physical broadcast channel (SSB) part on a first resource, wherein the first resource is a part of resources used by the first SSB;

the first SSB includes the first SSB portion and a second SSB portion, the first SSB being one SSB within one SSB burst window;

Wherein the first information within the SSB burst window associates the same SSB index with the first SSB portion;

the time domain resource position of the resource used for the first information transmission is different from the time domain resource position of the first resource;

the frequency domain resource position of the resource used for the first information transmission is the same as the frequency domain resource position of the first resource, or the frequency domain resource center of the resource used for the first information transmission is the same as the frequency domain resource center of the first resource;

the frequency range occupied by the first resource is not larger than the maximum processing bandwidth of the terminal equipment;

the sum of the frequency range occupied by the first resource and the frequency range occupied by the second SSB part transmission is larger than the maximum processing bandwidth of the terminal equipment;

and the terminal equipment acquires one or more of a physical broadcast channel, a synchronous signal and a main information block according to the first SSB part.

2. The method of claim 1, wherein the first information corresponds to two time domain units.

3. The method of claim 2, wherein the first SSB portion comprises a primary synchronization signal PSS, a secondary synchronization signal SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion comprises a third PBCH portion and a fourth PBCH portion, the first information comprises first and second sub-information, wherein the first and third PBCH portions comprise the same information, and the second and fourth PBCH portions comprise the same information;

Wherein the PSS corresponds to a first time domain unit, the first PBCH portion corresponds to a second time domain unit, the SSS corresponds to a third time domain unit, the second PBCH portion corresponds to a fourth time domain unit, the first sub-information corresponds to a fifth time domain unit, and the second sub-information corresponds to a sixth time domain unit;

the third and fourth PBCH portions correspond to the second, third, and fourth time domain units.

4. The method of claim 3, wherein the first information corresponds to the fifth time domain unit and the sixth time domain unit, and specifically comprises:

a first information part in the first information corresponds to the fifth time domain unit, a second information part in the first information corresponds to the sixth time domain unit, wherein information corresponding to a first frequency range in the first information part and the second SSB part is the same, information corresponding to a second frequency range in the second information part and the second SSB part is the same, and the first frequency range and the second frequency range are not overlapped; or alternatively

A first information part in the first information corresponds to the fifth time domain unit and the sixth time domain unit, a fourth sub-information in the first information corresponds to the sixth time domain unit, wherein information corresponding to a first frequency range in the first information part and the second SSB part is the same, information corresponding to a second frequency range in the second information part and the second SSB part is the same, and the first frequency range and the second frequency range are not overlapped; or alternatively

The first information part in the first information corresponds to the fifth time domain unit, the second information part in the first information corresponds to the fifth time domain unit and the sixth time domain unit, wherein information corresponding to a first frequency range in the first information part and the second SSB part is the same, information corresponding to a second frequency range in the second information part and the second SSB part is the same, and the first frequency range and the second frequency range are not overlapped.

5. The method of any of claims 2-4, wherein the locations of the first time domain unit to the fourth time domain unit are predefined;

the method further comprises the steps of:

the terminal equipment acquires indication information, wherein the indication information is used for determining the positions of the fifth time domain unit and the sixth time domain unit.

6. The method of claim 5, wherein the indication information is further used to determine locations of a seventh time domain unit and an eighth time domain unit corresponding to the second information;

the second information and the fourth SSB portion include the same information, the third SSB portion and the fourth SSB portion are used for determining a second SSB, the second information and the time domain resources corresponding to the second SSB are different, the time domain resources mapped by the second SSB are located after the time domain resources mapped by the first SSB, and the time domain resources corresponding to the second SSB are predefined.

7. The method of claim 6, wherein,

the indication information is specifically used for determining: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit and the eighth time domain unit are located after the time domain resources corresponding to the second SSB; or alternatively

The indication information is specifically used for determining: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit and the eighth time domain unit are located before the time domain resources corresponding to the first SSB; or alternatively

The indication information is specifically used for determining: the fifth time domain unit and the sixth time domain unit are located before the time domain resource corresponding to the first SSB, and the seventh time domain unit and the eighth time domain unit are located after the time domain resource corresponding to the second SSB; or alternatively

The indication information is specifically used for determining: the fifth time domain unit, the sixth time domain unit, the seventh time domain unit, and the eighth time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB; or alternatively

The indication information is specifically used for determining: the fifth time domain unit and the sixth time domain unit are located before the time domain resource corresponding to the first SSB, and the seventh time domain unit and the eighth time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB; or alternatively

The indication information is specifically used for determining: the fifth time domain unit and the sixth time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB, and the seventh time domain unit and the eighth time domain unit are located after the time domain resource corresponding to the second SSB; or alternatively

The indication information is specifically used for determining: the fifth time domain unit is located before the time domain resource corresponding to the first SSB, the sixth time domain unit and the seventh time domain unit are located between the time domain resource corresponding to the first SSB and the time domain resource corresponding to the second SSB, and the eighth time domain unit is located after the time domain resource corresponding to the second SSB.

8. The method according to any of claims 5-7, wherein the indication information is predefined or from a network device.

9. The method of claim 1, wherein the first information corresponds to three time domain units.

10. The method of claim 9, wherein the first SSB portion comprises a PSS, an SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion comprising a fifth PBCH portion, a sixth PBCH portion, and a seventh PBCH portion; the first information comprises third sub-information, fourth sub-information and fifth sub-information, wherein the third sub-information is identical to the fifth PBCH part, the fourth sub-information is identical to the sixth PBCH part, and the fifth sub-information is identical to the seventh PBCH part;

Wherein the PSS corresponds to a first time domain unit, the first PBCH portion corresponds to a second time domain unit, the SSS corresponds to a third time domain unit, the second PBCH portion corresponds to a fourth time domain unit, the third sub-information corresponds to a fifth time domain unit, the fourth sub-information corresponds to a sixth time domain unit, and the fifth sub-information is mapped in a ninth time domain unit;

the fifth PBCH part, the sixth PBCH part, and the seventh PBCH part correspond to the second time domain unit, the third time domain unit, and the fourth time domain unit.

11. The method of claim 10, wherein a first information portion of the first information corresponds to the fifth time domain unit and the sixth time domain unit, a second information portion of the first information corresponds to the sixth time domain unit and the ninth time domain unit, wherein information corresponding to a first frequency range in the first information portion and the second SSB portion is the same, information corresponding to a second frequency range in the second information portion and the second SSB portion is the same, and the first frequency range and the second frequency range do not overlap.

12. The method of any of claims 1-11, wherein a period of the first information is greater than or equal to a period of the first SSB.

13. The method according to any of claims 1-12, wherein the maximum processing bandwidth of the terminal device is 11 resource blocks, RBs, or 12 RBs.

14. A method of communication, the method comprising:

the network device sends a first synchronization signal/physical broadcast channel block (SSB), wherein the first SSB comprises a first SSB part and a second SSB part, the first SSB part is transmitted on a first resource, the first resource is a part of the resource used by the first SSB, and the first SSB is one SSB in an SSB burst window;

15. The method of claim 14, wherein the first information corresponds to two time domain units.

16. The method of claim 15, wherein the first SSB portion comprises a primary synchronization signal PSS, a secondary synchronization signal SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion comprising a third PBCH portion and a fourth PBCH portion, the first information comprising first and second sub-information, wherein the first and third PBCH portions comprise the same information, and the second and fourth PBCH portions comprise the same information;

17. The method of claim 16, wherein the first information corresponds to the fifth time domain unit and the sixth time domain unit, and specifically comprises:

A first information part in the first information corresponds to the fifth time domain unit and the sixth time domain unit, a second information part in the first information corresponds to the sixth time domain unit, wherein information corresponding to a first frequency range in the first information part and the second SSB part is the same, information corresponding to a second frequency range in the second information part and the second SSB part is the same, and the first frequency range and the second frequency range are not overlapped; or alternatively

18. The method according to any of claims 15-17, wherein the locations of the first time domain unit to the fourth time domain unit are predefined;

the method further comprises the steps of:

the network device determines the fifth time domain unit and the sixth time domain unit according to indication information, wherein the indication information is used for determining positions of the fifth time domain unit and the sixth time domain unit.

19. The method of claim 18, wherein the indication information is further used to determine locations of a seventh time domain unit and an eighth time domain unit corresponding to the second information;

20. The method of claim 19, wherein,

21. The method according to any of claims 18-20, wherein the indication information is predefined or determined for the network device.

22. The method of claim 21, wherein the method further comprises:

and the network equipment sends the indication information to the terminal equipment.

23. The method of claim 14, wherein the first information corresponds to three time domain units.

24. The method of claim 23, wherein the first SSB portion comprises a PSS, an SSS, a first PBCH portion, and a second PBCH portion, the second SSB portion comprising a fifth PBCH portion, a sixth PBCH portion, and a seventh PBCH portion; the first information comprises third sub-information, fourth sub-information and fifth sub-information, wherein the third sub-information is identical to the fifth PBCH part, the fourth sub-information is identical to the sixth PBCH part, and the fifth sub-information is identical to the seventh PBCH part;

25. The method of claim 24, wherein a first information portion of the first information corresponds to the fifth time domain unit and the sixth time domain unit, a second information portion of the first information corresponds to the sixth time domain unit and the ninth time domain unit, wherein information corresponding to a first frequency range in the first information portion and the second SSB portion is the same, information corresponding to a second frequency range in the second information portion and the second SSB portion is the same, and the first frequency range and the second frequency range do not overlap.

26. The method of any of claims 14-25, wherein a period of the first information is greater than or equal to a period of the first SSB.

27. The method according to any of claims 14-26, wherein the maximum processing bandwidth of the terminal device is 11 resource blocks, RBs, or 12 RBs.

28. A communication device comprising a processor and a memory, the processor and the memory being coupled, the processor being configured to implement the method of any of claims 1-13.

29. A communication device comprising a processor and a memory, the processor and the memory being coupled, the processor being configured to implement the method of any of claims 14-27.

30. A computer readable storage medium for storing computer instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1-13 or cause the computer to perform the method of any one of claims 14-27.