CN114375043A

CN114375043A - Method, base station, device and medium for determining initial uplink BWP of terminal

Info

Publication number: CN114375043A
Application number: CN202011105268.3A
Authority: CN
Inventors: 周欢
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2022-04-19
Also published as: WO2022078497A1

Abstract

The invention discloses a method, a base station, equipment and a medium for determining initial uplink BWP of a terminal. The method comprises the following steps: and the gNB broadcasts the initial uplink BWP position of the first type terminal through the SI or determines the initial uplink BWP position of the first type terminal in an agreed manner according to the frequency domain resource occupied by the PRACH. The invention provides a specific scheme for determining the initial uplink BWP of the first class terminal under the condition that the first class terminal and the second class terminal share the RO, and fills the blank of the part.

Description

Method, base station, device and medium for determining initial uplink BWP of terminal

Technical Field

The present invention belongs to the field of communications, and in particular, to a method, a base station, a device, and a medium for determining an initial uplink BWP of a terminal.

Background

Currently, 3GPP (third generation partnership project) discusses the coexistence problem of a reccap (User Equipment) UE and an eMBB (Enhanced Mobile Broadband) UE. For FR1(450MHz-6000MHz, also known as Sub-6GHz) as an example, the bandwidth supported by the eMBB UE can reach 100MHz, while the maximum bandwidth for the reccap UE is limited to 20MHz during the initial access procedure. According to the current 3GPP protocol, the gbb (5G base station) configures an initial uplink BWP (bandwidth part) of the eMBB UE and a frequency domain position of an RO (random access time-frequency resource) to be used by the eMBB UE during initial access in an SIB (System Information Block).

According to the current 3GPP protocol, the initial downlink (initial DL) BWP of a UE is determined by the configured CORESET0, and the maximum bandwidth of a red beacon UE during initial access is 20MHz (FR1), so that the UE is compatible with the CORESET0 (control resource set) owned by an eMBB UE. The initial uplink BWP for the eMBB UE is configured through SIB 1. According to the configuration of SIB1 for PRACH (Physical Random Access Channel) and 38.211vg00 Table 6.3.3.2-1, the frequency domain resource occupied by each RO can be determined.

For TDD (time division duplex), since the central frequency points of the initial downlink BWP and the uplink BWP are the same, after the bandwidths of the initial downlink BWP and the initial uplink BWP are determined, the initial position of the initial uplink BWP is already determined. But for FDD (frequency division duplex), there is no constraint that the uplink and downlink center frequency points are the same. According to the current 3GPP protocol, the bandwidth supported by the eMBB UE may reach 100MHz, and the initial uplink BWP of the eMBB UE may be configured to be greater than 20MHz, so that the initial uplink BWP configuration of the eMBB UE cannot be fully reused by the RedCap UE. There is a need to study methods to determine the initial uplink BWP of a redmap UE.

Furthermore, one possible configuration of the network is that the reccap UE and the eMBB UE share the RO, and the last PRB occupied by the RO of the eMBB UE is more than 20MHz away from the initial uplink BWP start PRB of the eMBB UE. According to the configuration of SIB1, the multiplexing factor msg1-FDM for eMBB UE ROs may be 8 (i.e., 8 ROs in the frequency domain), as shown in fig. 1. In a partial preamble (random access preamble) format (such as the preamble format listed in the following table) that can be used by the eMBB UE, when msg1-FDM is 8, the bandwidth occupied by all ROs will exceed 20MHz, i.e., the maximum bandwidth of the initial access phase of the reccap UE is exceeded. In the scenario that a reccap UE and an eMBB UE share an RO, how msg1-FDM is used for these preamble formats needs to be studied.

Currently, for NR-U (NR in Unlicensed Spectrum, that is, NR operating in Unlicensed Spectrum), uplink BWP may be determined according to PRACH resources used by the UE, but this requires that the UE in NR-U knows the upper and lower boundaries of the uplink BWP and the configuration of different RB sets (Resource blocks), and the UE determines which RB set to use according to the PRACH resources used. This does not apply for the case where the boundary of the upstream BWP is unknown.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a method, a base station, a device and a medium for determining an initial uplink BWP of a terminal, for how to determine the initial uplink BWP of a red map UE, especially for determining the initial uplink BWP of the red map UE when the boundary of the initial uplink BWP is unknown.

The invention solves the technical problems through the following technical scheme:

the present invention provides a method of determining an initial uplink BWP of a terminal, the method comprising:

the gNB broadcasts the initial upstream BWP location of the first class of terminals over the SI.

Preferably, the first class of terminals and the second class of terminals share the RO during the initial access process, and the maximum bandwidth of the first class of terminals during the initial access process is smaller than the maximum bandwidth of the second class of terminals during the initial access process, and the SI includes information for implementing the following configuration:

configuring offset of an initial uplink BWP of the first type terminal compared with a first PRB occupied by a PRACH;

or configuring the offset of the first PRB of the initial uplink BWP of the first class of terminal compared with the offset of the first PRB of the initial uplink BWP of the second class of terminal.

Preferably, when the bandwidth occupied by all ROs configured by the network is less than or equal to the initial upstream BWP bandwidth of the first type terminal, the offsets broadcasted by different SSBs are the same.

Preferably, when the bandwidth occupied by all ROs configured by the network is larger than the initial upstream BWP bandwidth of the first type terminal, the offsets broadcasted by different SSBs are different.

Preferably, when the bandwidth occupied by all ROs configured by the network is greater than the initial uplink BWP bandwidth of the first type terminal, the offsets broadcast by different SSBs are the same but an offset _ i is added to the offsets when the SSBs corresponding to the first type terminal do not correspond to the first type terminal, where the offset _ i is related to the number of PRBs occupied by the ROs and the beam corresponding to the SSB where the first type terminal is located.

Preferably, the offset _ i is related to the number of PRBs occupied by the RO and a beam corresponding to the SSB where the first type terminal is located, and specifically includes when the first type terminal is located in the beam corresponding to the SSB _ i:

when the total bandwidth occupied by the plurality of ROs corresponding to the SSB _ i exceeds the initial upstream BWP bandwidth of the first class of terminal, the first class of terminal selects M consecutive ROs as the finally available RO, where M satisfies the following condition:

m × RBnum < initial upstream BWP bandwidth of the first class terminal, and (M +1) × RBnum > initial upstream BWP bandwidth of the first class terminal, where RBnum is the number of RBs occupied by one RO;

offset _ i is RBnum × N, where N is the RO minimum index-1 selected by the first class of terminals;

and/or when the total bandwidth occupied by all ROs corresponding to SSB _ i is smaller than the initial upstream BWP bandwidth of the first class terminal, offset _ i ═ RBnum × Q, Q satisfies:

RO_Q+1to RO_pContains ROs for all SSBs _ i, and (P-Q) × RBnum is smaller than or equal to the initial upstream BWP bandwidth for the first class of terminals;

wherein, P represents the maximum RO corresponding to SSB _ i.

Preferably, the mode of selecting the continuous M ROs by the first type terminal needs to be agreed in advance or configured by the network; the mode of determining Q by the first type terminal needs to be agreed in advance or network configuration.

Preferably, the SI includes information to implement the following configuration:

configuring the absoluteFrequencyPointA, offsetToCarrier and locationAndBandwidth of the initial upstream BWP of the first type terminal.

Preferably, the initial uplink BWP bandwidth of the first class of terminals is configured through SIB.

Preferably, the first class of terminals includes a rectap UE.

Preferably, the second type of terminal includes an eMBB UE.

The present invention also provides a method for determining an initial upstream BWP of a terminal, where a first class of terminal and a second class of terminal share an RO during an initial access procedure and a maximum bandwidth of the first class of terminal during the initial access procedure is smaller than a maximum bandwidth of the second class of terminal during the initial access procedure, the method comprising:

and determining the initial uplink BWP position of the first type terminal in a predetermined mode according to the frequency domain resources occupied by the PRACH.

Preferably, when the bandwidth occupied by all ROs configured by the network is less than or equal to the initial upstream BWP bandwidth of the first type terminal, the agreed content includes:

the initial uplink BWP of the first class terminal takes a center RB occupied by the PRACH as a center RB, and if the initial uplink BWP of the first class terminal calculated in this way exceeds an initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal takes a last PRB of the initial uplink BWP of the second class terminal as a last PRB or takes a first PRB of the initial uplink BWP of the second class terminal as a first PRB;

or, the initial uplink BWP of the first class terminal uses the last PRB occupied by the PRACH as the last PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal uses the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

or, the initial uplink BWP of the first class terminal uses the first PRB occupied by the PRACH as the first PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the boundary of the initial uplink BWP of the second class terminal, the initial uplink BWP of the first class terminal uses the last PRB of the initial uplink BWP of the second class terminal as the last PRB.

Preferably, when the bandwidth occupied by all ROs configured by the network is greater than the initial upstream BWP of the first type terminal, the agreed content includes:

when the first-class terminal is located in a beam corresponding to SSB _ i, and when a total bandwidth occupied by a plurality of ROs corresponding to SSB _ i exceeds an initial upstream BWP bandwidth of the first-class terminal, the first-class terminal selects M consecutive ROs as a final available RO, where M satisfies the following condition:

the initial uplink BWP of the first class terminal takes the center RB occupied by the selected RO as a center RB, and if the calculated initial uplink BWP of the first class terminal exceeds the boundary of the initial uplink BWP of the second class terminal, the initial uplink BWP of the first class terminal takes the last PRB of the initial uplink BWP of the second class terminal as the last PRB or takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

or, the initial uplink BWP of the first class terminal takes the last PRB occupied by the selected RO as the last PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

or, the initial uplink BWP of the first class terminal uses the first PRB occupied by the selected RO as the first PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal uses the last PRB of the initial uplink BWP of the second class terminal as the last PRB.

Preferably, the mode of selecting the M consecutive ROs by the first type terminal requires advance agreement or network configuration.

when the first class terminal is located in a beam corresponding to SSB _ i, and when the total bandwidth occupied by all ROs corresponding to SSB _ i does not exceed the initial uplink BWP bandwidth of the first class terminal:

the initial uplink BWP of the first class terminal takes the central RB occupied by all ROs corresponding to SSB _ i as a central RB, and if the initial uplink BWP of the first class terminal calculated in this way exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal takes the last PRB of the initial uplink BWP of the second class terminal as the last PRB or takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

or, the initial uplink BWP of the first class terminal uses the last PRB occupied by all ROs corresponding to SSB _ i as the last PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal uses the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

or, the initial uplink BWP of the first class terminal uses the first PRB occupied by all ROs corresponding to SSB _ i as the first PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal uses the last PRB of the initial uplink BWP of the second class terminal as the last PRB.

Preferably, the first class of terminals includes a rectap UE.

Preferably, the second type of terminal includes an eMBB UE.

The present invention also provides a base station, comprising:

a sending module, configured to broadcast an initial uplink BWP location of the first class terminal through the SI.

wherein, P represents the maximum RO corresponding to SSB _ i.

Preferably, the first class of terminals includes a rectap UE.

Preferably, the second type of terminal includes an eMBB UE.

The invention also provides a system for determining the initial uplink BWP of the terminal, wherein the first class of terminal and the second class of terminal share RO in the initial access process, the maximum bandwidth of the first class of terminal in the initial access process is smaller than the maximum bandwidth of the second class of terminal in the initial access process, and the system is used for determining the initial uplink BWP position of the first class of terminal in a stipulated manner according to the frequency domain resource occupied by the PRACH.

Preferably, the first class of terminals includes a rectap UE.

Preferably, the second type of terminal includes an eMBB UE.

The present invention also provides a base station, which schedules the initial uplink BWP of the first class of terminals according to the convention as described above.

The invention also provides a terminal, and the terminal analyzes the initial uplink BWP of the terminal according to the convention.

The present invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method for determining an initial upstream BWP of a terminal as described above when executing the program.

The present invention also provides a computer readable storage medium having stored thereon a computer program, which when executed by a processor, performs the steps of determining an initial upstream BWP method for a terminal as described above.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows: aiming at the technical problem of how to determine the initial uplink BWP of the terminal, the invention provides two specific schemes, which make up the blank of the part:

the first method comprises the following steps: the gNB broadcasts the initial upstream BWP position of the first type terminal through the SI: the scheme can achieve the beneficial effect of reducing signaling overhead;

secondly, determining the initial uplink BWP position of the terminal in an agreed manner according to the frequency domain resource occupied by the PRACH: the scheme can also achieve the beneficial effect of reducing signaling overhead.

Drawings

Fig. 1 is a schematic diagram of configuring an initial uplink BWP of an eMBB UE;

fig. 2 is a flowchart of a method for determining an initial upstream BWP of a terminal according to embodiment 1 of the present invention;

fig. 3 is a schematic diagram of selecting 1a, 1b to configure initial uplink BWP of a redmap UE according to eMBB;

FIG. 4 is 4 tables in example 1;

fig. 5 is a schematic block diagram of a base station according to embodiment 3 of the present invention;

fig. 6 is a schematic structural diagram of an electronic device according to embodiment 6 of the present invention.

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

Example 1

Fig. 1 illustrates a method for determining an initial upstream BWP of a terminal according to the present embodiment, which includes:

step 101: the gNB (5G base station) broadcasts the initial uplink BWP position of the first type terminal through SI (System Information).

The steps are specifically realized in one of the following three optional modes:

selecting 1 a: the first class terminal and the second class terminal share the RO in the initial access process, the maximum bandwidth of the first class terminal in the initial access process is smaller than the maximum bandwidth of the second class terminal in the initial access process, and the SI comprises the information for realizing the following configuration:

and configuring offset (offset) of the initial uplink BWP of the first type terminal compared with the first PRB occupied by the PRACH.

Selection of 1 b: the first class terminal and the second class terminal share the RO in the initial access process, the maximum bandwidth of the first class terminal in the initial access process is smaller than the maximum bandwidth of the second class terminal in the initial access process, and the SI comprises the information for realizing the following configuration:

and configuring the offset of the first PRB of the initial uplink BWP of the first type of terminal compared with the offset of the first PRB of the initial uplink BWP of the second type of terminal.

In this embodiment, the first class of terminals includes, but is not limited to, a reccap UE; the second class of terminals includes, but is not limited to, eMBB UEs. Fig. 3 shows a schematic diagram of configuring an initial uplink BWP of a reccap UE according to an eMBB UE, showing the location of offset in 1a, 1 b.

In 1a and 1b, the following two scenarios may be classified according to the size relationship between the bandwidth occupied by all ROs configured by the network and the initial upstream BWP bandwidth of the first class terminal:

scene one: and the bandwidth occupied by all the ROs configured by the network is less than or equal to the initial uplink BWP bandwidth of the first-class terminal, wherein the initial uplink BWP bandwidth of the first-class terminal can be configured by SIB. In this case, the offsets of the SSB broadcasts allocated to 1a and 1b may be the same.

Scene two: and the bandwidth occupied by all the ROs configured by the network is larger than the initial upstream BWP bandwidth of the first-class terminal, wherein the initial upstream BWP bandwidth of the first-class terminal can be configured by SIB.

In this case, the offsets of the SSB broadcasts configured by 1a and 1b may be different. For 1a, when the PRACH total resources are larger than the initial uplink BWP bandwidth of the first type of terminal, the offset may be positive or negative. For 1b, the offsets are all positive when the PRACH total resources are larger than the initial uplink BWP bandwidth (20M for the example of a reccap UE) of the first class of terminals.

Or, the offsets of the SSBs broadcast by the different SSBs configured in 1a and 1b are the same, but when the SSBs corresponding to the first type of terminal are different, an offset _ i is added to the offsets, where the offset _ i is related to the number of PRBs occupied by the RO and the beam corresponding to the SSB where the first type of terminal is located.

The offset _ i is related to the number of PRBs occupied by the RO and a beam corresponding to the SSB where the first type terminal is located, and specifically includes when the first type terminal is located in the beam corresponding to the SSB _ i:

m × RBnum < initial upstream BWP bandwidth of the first class terminal, and (M +1) × RBnum > initial upstream BWP bandwidth of the first class terminal, where RBnum is the number of RBs occupied by one RO and is determined by configuration parameters of the RO;

the mode of selecting the continuous M ROs by the first class of terminals needs to be agreed in advance (as agreed in a 3GPP protocol) or network configuration;

and the offset _ i is RBnum N, and N is the RO minimum index-1 selected by the first terminal.

when the total bandwidth occupied by all ROs corresponding to SSB _ i is smaller than the initial upstream BWP bandwidth of the first class of terminal, offset _ i ═ RBnum × Q, Q satisfies:

wherein, P represents the maximum RO corresponding to SSB _ i. The mode of determining Q by the first class of terminals requires advance agreement (as agreed in 3GPP protocols) or network configuration.

As shown in 4 tables in fig. 4, when a red cap UE is located in a beam corresponding to an SSB _ i, according to the current 3GPP protocol allocation principle for RO frequency domain resources, the SSB _ i corresponds to 1 or more ROs in terms of frequency domain (table 1 and table 2 correspond to a plurality, and table 3 and table 4 correspond to 1). When the total bandwidth occupied by the multiple ROs corresponding to SSB _ i exceeds the initial uplink BWP bandwidth of the redmap UE, as in table 1, the redmap UE is in the beam corresponding to SSB _1, and all ROs 1-8 can be used, where the bandwidth occupied by these 8 ROs is greater than the initial uplink BWP bandwidth of the redmap UE. At this time, the UE selects continuous M ROs as the final available RO, M RBnum<Initial uplink BWP bandwidth of RedCap UE and (M +1) × RBnum>Initial uplink BWP Bandwidth of RedCap UE, M for Table 1<8 for Table 2, M<4. If the UE selects RO5-8 as the final available RO, then N-4. Taking table 3 as an example, when the total bandwidth occupied by all ROs corresponding to SSB _ i is smaller than the initial uplink BWP bandwidth of the reccap UE, offset _1 is 0; SSB4 corresponds to the 4 th RO, SSB4 corresponds to offset _4 ═ RBnum × Q, Q<3, thus from RO_Q+1To RO_pCan all the ROs for SSB _ i be included. Taking table 2 as an example, offset _1/2/3/4 is 0; offset _5/6/7/8 (RBnum Q, Q)<4, so that the 5 th RO canFalls within the initial uplink BWP bandwidth of the redmap UE.

Selecting 1 c: the SI includes information to implement the following configuration:

configuring absoluteFrequencyPointA (indicating the position of PointA in the Frequency domain, and indicated by arfcn (absolute Radio Frequency Channel number)), offsetToCarrier (indicating the Frequency offset between PointA and the local subcarrier in local RB (where SCS of Resource Block is specified by signaling subcarrigseacngcommon) overlapping with SS/PBCH Block (SSB is used for UE to make initial cell selection)), and locationandbywidth (indicating the starting position of PRB of BWP and the number of occupied PRBs in RIV by the form of RIV).

In the first two ways of this embodiment, when the initial uplink BWP position of the first class terminal is configured, the initial uplink BWP and the PRACH resource of the second class terminal are used as references, and a small number of bits may be used to indicate the initial uplink BWP position of the first class terminal. In particular, the first type has a smaller value range than the second type, which saves more bits.

Example 2

The present embodiment provides a method for determining an initial upstream BWP of a terminal, where a first class of terminals and a second class of terminals share an RO during an initial access process, and a maximum bandwidth of the first class of terminals during the initial access process is smaller than a maximum bandwidth of the second class of terminals during the initial access process. The method comprises the following steps:

In this embodiment, the following two scenarios may be classified according to the size relationship between the bandwidth occupied by all the ROs configured by the network and the initial upstream BWP bandwidth of the first class of terminal:

scene one: and the bandwidth occupied by all the ROs configured by the network is less than or equal to the initial uplink BWP bandwidth of the first-class terminal, wherein the initial uplink BWP bandwidth of the first-class terminal can be configured by SIB. At this time, with reference to resources occupied by all ROs, the content agreed by the method may include any one of the following three types:

selecting 2 a-1: the initial uplink BWP of the first class terminal takes a center RB occupied by the PRACH as a center RB, and if the initial uplink BWP of the first class terminal calculated in this way exceeds an initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal takes a last PRB of the initial uplink BWP of the second class terminal as a last PRB or takes a first PRB of the initial uplink BWP of the second class terminal as a first PRB;

selecting 2 b-1: the initial uplink BWP of the first class terminal takes the last PRB occupied by the PRACH as the last PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the boundary of the initial uplink BWP of the second class terminal, the initial uplink BWP of the first class terminal takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

selecting 2 c-1: and if the calculated initial uplink BWP of the first type terminal exceeds the boundary of the initial uplink BWP of the second type terminal, the initial uplink BWP of the first type terminal takes the last PRB of the initial uplink BWP of the second type terminal as the last PRB.

Scene two: and the bandwidth occupied by all the ROs configured by the network is larger than the initial upstream BWP of the first-class terminal, wherein the initial upstream BWP bandwidth of the first-class terminal can be configured by SIB. At this time, one or more ROs corresponding to the SSB are selected as references (refer to table 3 and table 4 of fig. 4 in embodiment 1: table 3, where for SSB _4, the 4 th RO is used as a reference; table 4, where for SSB _7, the 7 th RO is used as a reference), and the agreed content may include:

m × RBnum < initial upstream BWP bandwidth of the first class terminal, and (M +1) × RBnum > initial upstream BWP bandwidth of the first class terminal, where RBnum is the number of RBs occupied by one RO and is determined by configuration parameters of the RO, and a mode of selecting consecutive M ROs by the first class terminal needs to be agreed in advance (e.g., agreed in a 3GPP protocol) or network configuration; and, any one of the following three:

selecting 2 a-2: the initial uplink BWP of the first class terminal takes the center RB occupied by the selected RO as a center RB, and if the calculated initial uplink BWP of the first class terminal exceeds the boundary of the initial uplink BWP of the second class terminal, the initial uplink BWP of the first class terminal takes the last PRB of the initial uplink BWP of the second class terminal as the last PRB or takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

selection of 2 b-2: the initial uplink BWP of the first class terminal takes the last PRB occupied by the selected RO as the last PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the boundary of the initial uplink BWP of the second class terminal, the initial uplink BWP of the first class terminal takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

selection of 2 c-2: and if the calculated initial uplink BWP of the first type terminal exceeds the boundary of the initial uplink BWP of the second type terminal, the initial uplink BWP of the first type terminal takes the last PRB of the initial uplink BWP of the second type terminal as the last PRB.

In scenario two, the content of the appointment may further include:

when the first type of terminal is located in a beam corresponding to SSB _ i, and when a total bandwidth occupied by all ROs corresponding to SSB _ i does not exceed an initial uplink BWP bandwidth of the first type of terminal, any one of the following three is agreed:

selecting 2 a-3: the initial uplink BWP of the first class terminal takes the central RB occupied by all ROs corresponding to SSB _ i as a central RB, and if the initial uplink BWP of the first class terminal calculated in this way exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal takes the last PRB of the initial uplink BWP of the second class terminal as the last PRB or takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

selecting 2 b-3: the initial uplink BWP of the first class terminal takes the last PRB occupied by all ROs corresponding to SSB _ i as the last PRB, and if the calculated initial uplink BWP of the first class terminal exceeds the initial uplink BWP boundary of the second class terminal, the initial uplink BWP of the first class terminal takes the first PRB of the initial uplink BWP of the second class terminal as the first PRB;

selecting 2 c-3: and if the calculated initial uplink BWP of the first class terminal exceeds the boundary of the initial uplink BWP of the second class terminal, the initial uplink BWP of the first class terminal takes the last PRB of the initial uplink BWP of the second class terminal as the last PRB.

In this embodiment, the first class of terminals includes, but is not limited to, a reccap UE; the second class of terminals includes, but is not limited to, eMBB UEs.

Example 3

Fig. 5 shows a base station of the present embodiment, which includes a transmitting module 201. The sending module 201 is configured to broadcast an initial upstream BWP location of the first class terminal through the SI.

The sending module 201 is specifically implemented by the following three ways:

and configuring the offset of the initial uplink BWP of the first type terminal compared with the first PRB occupied by the PRACH.

In the first two ways, the following two scenarios can be classified according to the size relationship between the bandwidth occupied by all ROs configured by the network and the initial upstream BWP bandwidth of the first class of terminal:

scene one: and the bandwidth occupied by all the ROs configured by the network is less than or equal to the initial uplink BWP bandwidth of the first-class terminal, wherein the initial uplink BWP bandwidth of the first-class terminal can be configured by SIB. At this time, the offsets of different SSB broadcasts configured in the first two ways may be the same.

At this time, the offsets of different SSB broadcasts configured in the first two ways may be different.

Or, the offsets of the SSBs broadcast by the first two different schemes are the same, but when the SSBs corresponding to the first type of terminal are different, an offset _ i is added to the offsets, where the offset _ i is related to the number of PRBs occupied by the RO and the beam corresponding to the SSB where the first type of terminal is located.

The offset _ i is related to the number of PRBs occupied by the RO and a beam corresponding to the SSB where the first type terminal is located, and specifically includes: when the first-class terminal is located in a beam corresponding to SSB _ i, and when a total bandwidth occupied by a plurality of ROs corresponding to SSB _ i exceeds an initial upstream BWP bandwidth of the first-class terminal, the first-class terminal selects M consecutive ROs as a final available RO, where M satisfies the following condition:

The offset _ i is related to the number of PRBs occupied by the RO and a beam corresponding to the SSB where the first type terminal is located, and specifically includes: when the first class of terminal is located in a beam corresponding to SSB _ i, and when a total bandwidth occupied by all ROs corresponding to SSB _ i is smaller than an initial uplink BWP bandwidth of the first class of terminal, offset _ i ═ RBnum × Q, Q satisfies:

In the first two ways of this embodiment, when the initial uplink BWP position of the first class terminal is configured, the initial uplink BWP and the PRACH resource of the second class terminal are used as references, and a small number of bits may be used to indicate the initial uplink BWP position of the first class terminal.

Example 4

The present embodiment provides a system for determining an initial upstream BWP of a terminal. The system is used for determining the initial uplink BWP position of the first class terminal in a promissory mode according to the frequency domain resource occupied by the PRACH.

scene one: and the bandwidth occupied by all the ROs configured by the network is less than or equal to the initial uplink BWP bandwidth of the first-class terminal, wherein the initial uplink BWP bandwidth of the first-class terminal can be configured by SIB. At this time, the content agreed by the method may include any one of the following three types:

Scene two: and the bandwidth occupied by all the ROs configured by the network is larger than the initial upstream BWP of the first-class terminal, wherein the initial upstream BWP bandwidth of the first-class terminal can be configured by SIB. At this time, the contents of the contract may include:

In scenario two, the content of the appointment may further include:

Example 5

This embodiment provides a base station, where the base station schedules an initial uplink BWP of a first class terminal according to the convention in embodiment 4.

The present embodiment further provides a terminal, where the terminal parses an initial uplink BWP of the terminal according to the convention in embodiment 4.

Example 6

Fig. 6 is a schematic structural diagram of an electronic device according to embodiment 6 of the present invention. The electronic device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method of determining an initial upstream BWP of a terminal of

embodiments

1 or 2 when executing the program. The electronic device 40 shown in fig. 6 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.

As shown in fig. 6, the electronic device 40 may be embodied in the form of a general purpose computing device, which may be, for example, a server device. The components of electronic device 40 may include, but are not limited to: the at least one processor 41, the at least one memory 42, and a bus 43 connecting the various system components (including the memory 42 and the processor 41).

The bus 43 includes a data bus, an address bus, and a control bus.

The memory 42 may include volatile memory, such as Random Access Memory (RAM)421 and/or cache memory 422, and may further include Read Only Memory (ROM) 423.

Memory 42 may also include a program/utility 425 having a set (at least one) of program modules 424, such program modules 424 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

The processor 41 executes various functional applications and data processing, such as a method of determining an initial upstream BWP of a terminal provided in

embodiment

1 or 2 of the present invention, by executing a computer program stored in the memory 42.

The electronic device 40 may also communicate with one or more external devices 44 (e.g., keyboard, pointing device, etc.). Such communication may be through an input/output (I/O) interface 45. Also, model-generating device 40 may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via network adapter 46. As shown in FIG. 5, the network adapter 46 communicates with the other modules of the model-generated device 40 via the bus 43. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the model-generating device 40, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.

It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.

Example 7

The present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a method of determining an initial upstream BWP for a terminal as provided in

embodiments

1 or 2.

More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.

In a possible implementation, the present invention may also be implemented in the form of a program product including program code for causing a terminal device to perform the steps of implementing a method for determining an initial upstream BWP of a terminal as described in

embodiment

1 or 2, when the program product is run on the terminal device.

Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may be executed entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A method of determining an initial upstream BWP for a terminal, the method comprising:

2. The method of claim 1, wherein the first class of terminals and the second class of terminals share the RO during initial access and a maximum bandwidth of the first class of terminals during initial access is smaller than a maximum bandwidth of the second class of terminals during initial access, and the SI comprises information that enables:

3. The method according to claim 2, wherein the offsets broadcasted by different SSBs are the same when the bandwidth occupied by all ROs for the network configuration is less than or equal to the initial upstream BWP bandwidth for the first type of terminal.

4. The method of claim 2, wherein the offsets broadcast by different SSBs are different when the bandwidth occupied by all ROs for the network configuration is larger than the initial upstream BWP bandwidth for the first type of terminal.

5. The method according to claim 2, wherein when the bandwidth occupied by all ROs configured by the network is larger than the initial upstream BWP bandwidth of the first type terminal, the offsets broadcasted by different SSBs are the same but are increased by offset _ i when the SSBs corresponding to the first type terminal do not correspond to the same, where offset _ i is related to the number of PRBs occupied by the ROs and the beam corresponding to the SSB where the first type terminal is located.

6. The method of claim 5, wherein the offset _ i is related to the number of PRBs occupied by the RO and a beam corresponding to the SSB where the first type terminal is located, and specifically includes, when the first type terminal is located in the beam corresponding to the SSB _ i:

wherein, P represents the maximum RO corresponding to SSB _ i.

7. The method of claim 6, wherein the manner of selecting the consecutive M ROs by the first type terminal requires pre-engagement or network configuration; the mode of determining Q by the first type terminal needs to be agreed in advance or network configuration.

8. The method of claim 1, wherein the SI comprises information to implement the following configuration:

9. The method of claim 1, wherein an initial uplink BWP bandwidth for the first class of terminals is configured with SIBs.

10. The method of any one of claims 1-9, wherein the first class of terminals comprises RedCap UEs.

11. The method of any of claims 2-7, wherein the second type of terminal comprises an eMBB UE.

12. A method for determining an initial upstream BWP of a terminal, wherein a first class of terminals and a second class of terminals share an RO during an initial access procedure and a maximum bandwidth of the first class of terminals during the initial access procedure is smaller than a maximum bandwidth of the second class of terminals during the initial access procedure, the method comprising:

13. The method according to claim 12, wherein when the bandwidth occupied by all ROs configured by the network is less than or equal to the initial upstream BWP bandwidth of the first type terminal, the agreed content comprises:

14. The method according to claim 12, wherein when the bandwidth occupied by all ROs configured by the network is larger than the initial upstream BWP of the first type terminal, the agreed content comprises:

15. The method of claim 14, wherein the manner in which the first type of terminal selects the consecutive M ROs requires pre-provisioning or network configuration.

16. The method according to claim 12, wherein when the bandwidth occupied by all ROs configured by the network is larger than the initial upstream BWP of the first type terminal, the agreed content comprises:

17. The method of claim 12, wherein an initial uplink BWP bandwidth for the first class of terminals is configured with SIBs.

18. The method according to any of claims 12-17, wherein the first class of terminals comprises a RedCap UE.

19. The method of any of claims 12-17, wherein the second type of terminal comprises an eMBB UE.

20. A base station, characterized in that the base station comprises:

21. The base station of claim 20, wherein the first class of terminals and the second class of terminals share RO during initial access and a maximum bandwidth of the first class of terminals during initial access is smaller than a maximum bandwidth of the second class of terminals during initial access, and SI comprises information that enables:

22. The base station of claim 21, wherein the offsets broadcasted by different SSBs are the same when the bandwidth occupied by all ROs for the network configuration is less than or equal to the initial uplink BWP bandwidth for the first type of terminal.

23. The base station of claim 21, wherein the offsets broadcast by different SSBs are different when the bandwidth occupied by all ROs in the network configuration is larger than the initial uplink BWP bandwidth of the first type terminal.

24. The base station of claim 21, wherein when the bandwidth occupied by all ROs configured by the network is larger than the initial uplink BWP bandwidth of the first-type terminal, the offsets broadcasted by different SSBs are the same but are increased by offset _ i when the SSBs corresponding to the first-type terminal do not correspond to the same, where offset _ i is related to the number of PRBs occupied by the ROs and the beam corresponding to the SSB where the first-type terminal is located.

25. The base station of claim 24, wherein offset _ i is related to the number of PRBs occupied by an RO and a beam corresponding to an SSB on which the first type terminal is located, and specifically includes when the first type terminal is located on a beam corresponding to SSB _ i:

wherein, P represents the maximum RO corresponding to SSB _ i.

26. The base station of claim 25, wherein the manner for the first type terminal to select the M consecutive ROs requires pre-engagement or network configuration; the mode of determining Q by the first type terminal needs to be agreed in advance or network configuration.

27. The base station of claim 20, wherein the SI comprises information to implement the following configuration:

28. The base station of claim 20, wherein an initial uplink BWP bandwidth for the first class of terminals is configured with SIBs.

29. The base station according to any of claims 20-28, wherein the first class of terminals comprises a RedCap UE.

30. The base station of any of claims 21-26, wherein the second type of terminal comprises an eMBB UE.

31. A system for determining initial uplink BWP of a terminal is characterized in that a first class of terminals and a second class of terminals share RO in the initial access process, the maximum bandwidth of the first class of terminals in the initial access process is smaller than the maximum bandwidth of the second class of terminals in the initial access process, and the system is used for determining the initial uplink BWP position of the first class of terminals in an appointed mode according to frequency domain resources occupied by PRACH.

32. The system of claim 31, wherein when the bandwidth occupied by all ROs configured by the network is less than or equal to the initial upstream BWP bandwidth of the first type terminal, the agreed content comprises:

33. The system of claim 31, wherein when the bandwidth occupied by all ROs configured by the network is larger than the initial upstream BWP of the first type terminal, the agreed content comprises:

34. The system of claim 33, wherein the manner in which the first type of terminal selects the consecutive M ROs requires pre-provisioning or network configuration.

35. The system of claim 31, wherein when the bandwidth occupied by all ROs configured by the network is larger than the initial upstream BWP of the first type terminal, the agreed content comprises:

36. The system of claim 31, wherein an initial uplink BWP bandwidth for the first class of terminals is configured through SIBs.

37. The system of any one of claims 31-36, wherein the first class of terminals comprises a rectap UE.

38. The system of any one of claims 31-36, wherein the second type of terminal comprises an eMBB UE.

39. A base station, characterized in that the base station schedules initial uplink BWP for terminals of the first type according to the convention defined in any one of claims 31 to 38.

40. A terminal, characterized in that the terminal parses an initial upstream BWP of the terminal according to the convention of any one of claims 31-38.

41. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the method of determining an initial upstream BWP for a terminal of any one of claims 1 to 19.

42. A computer readable storage medium having stored thereon a computer program, which when executed by a processor performs the steps of determining an initial upstream BWP method for a terminal of any one of claims 1 to 19.