CN109586878B

CN109586878B - Base station, user equipment, uplink resource allocation method and uplink transmission method

Info

Publication number: CN109586878B
Application number: CN201810339204.6A
Authority: CN
Inventors: 张英杰; 吴敏; 钱辰; 喻斌
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2017-09-29
Filing date: 2018-04-16
Publication date: 2023-11-14
Anticipated expiration: 2038-04-16
Also published as: CN109586878A

Abstract

The embodiment of the invention provides a base station, user equipment, an uplink resource allocation method and an uplink transmission method, which are applied to the technical field of communication, and the method comprises the following steps: the base station allocates a bandwidth portion BWP resource and a physical resource block PRB resource within BWP for the user equipment UE, then the base station transmits BWP resource indication information and BWP intra-PRB resource indication information to the UE, the BWP resource indication information is used to indicate the BWP resource allocated by the base station for the UE, the BWP intra-PRB resource indication information is used to indicate the BWP intra-PRB resource allocated by the base station for the UE, then the UE receives the BWP resource indication information and the BWP intra-PRB resource indication information transmitted by the base station, and then the UE determines the BWP resource allocated by the base station for the UE and the PRB resource within the BWP according to the BWP resource indication information and the BWP intra-PRB resource indication information for uplink transmission.

Description

Base station, user equipment, uplink resource allocation method and uplink transmission method

Technical Field

The invention relates to the technical field of communication, in particular to a base station, user equipment, an uplink resource allocation method and an uplink transmission method.

Background

With the rapid development of the information industry, especially the growing demand from the mobile internet and internet of things (IoT, internet of things), the future mobile communication technology is challenged unprecedented. As per the international telecommunications union ITU report ITU-R M [ imt. Beyond 2020.Traffic ], it is expected that in 2020, mobile traffic will increase approximately 1000 times as compared to 2010 (4G age), the number of user equipment connections will also exceed 170 billions, and the number of connected devices will be even more dramatic as the vast number of IoT devices gradually penetrate into the mobile communication network. To address this unprecedented challenge, the communications industry and academia have developed a wide range of fifth generation mobile communication technology research (5G), oriented in the 2020 s. The framework and overall goals of future 5G have been discussed in ITU report ITU-R M [ imt.vision ], where the requirements expectations, application scenarios and important performance metrics of 5G are specified. For new demands in 5G, ITU report ITU-R M [ imt.future TECHNOLOGY TRENDS ] provides information about technical trends for 5G, aiming at solving significant problems of significant improvement of system throughput, user experience consistency, scalability to support IoT, latency, energy efficiency, cost, network flexibility, support of emerging services, flexible spectrum utilization, etc.

The indication of the Uplink transmission resources of a User Equipment (UE) by an Uplink Grant message (UL Grant) is an important step in a wireless communication system. In LTE/LTE-a, both specific downlink control information (Downlink Control Information, DCI) and random access response (Random Access Responce, RAR or Msg 2) in the random access procedure contain UL Grant. Wherein UL grant contains the following information:

-a frequency hopping flag;

-a resource allocation indication, possibly containing a resource block indication index value (Resource Indication Value, RIV) and frequency hopping resource allocation information;

-modulation and coding scheme;

-a channel quality reporting (Channel Quality Information, CQI) request;

-other information;

the UE can obtain the initial physical resource block (Physical Resource Block, PRB) position (RB) according to the value of RIV and corresponding calculation method _START ) And the number of allocated consecutive physical resource blocks (L _CRBs ). If the hopping flag is 0, the resource allocation instruction includes only RIV, and in this case, the physical uplink shared channel (Physical Uplink Share Channel, PUSCH) is allocated from the resource block RB _START Begin to map L continuously in incremental manner of resource block index _CRBs Resource blocks; if the frequency hopping identifier is 1, the resource allocation instruction includes both frequency hopping resource allocation information and RIV, in which case PUSCH resource allocation in the first time slot (or a subframe with even number of HARQ transmissions) and PUSCH resource allocation in the second time slot (or a subframe with odd number of HARQ transmissions) can be obtained according to RIV, frequency hopping resource allocation information, and other possible information (such as a cell specific frequency hopping pattern, a mirror image pattern, etc.).

It should be noted that in the LTE/LTE-a system, uplink resource allocation is directed to the entire system bandwidth, i.e. one or more PRBs are selected from all available PRBs within the uplink system bandwidth as allocated PUSCH transmission resources. Since the LTE/LTE-a adopts the uplink transmission scheme of DFT-S-OFDM, if the number of allocated PRBs is greater than one, the PRBs are contiguous in the frequency domain.

In future wireless communication systems, the entire system Bandwidth may be divided into several Bandwidth parts (BWP). For any one UE, only one upstream BWP is activated at the same time. Therefore, the allocation of uplink resources in UL Grant of the future wireless communication system needs to include both an indication of BWP and an indication of PRBs within BWP. Furthermore, future wireless communication systems may support uplink transmission schemes of cyclic Prefix-orthogonal frequency division multiplexing (CP-OFDM) and orthogonal frequency division multiplexing multiple access (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing, DFT-S-OFDM) of discrete fourier transform Spread at the same time, so if the number of allocated PRBs is greater than one, the PRBs may be contiguous, or may be discrete, or may be partially contiguous in the frequency domain; on the other hand, if the UL Grant includes a hopping indication, the uplink resource may be hopped within the same BWP or between different BWPs.

As described above, the uplink resource allocation method of the full system bandwidth contiguous PRBs used in UL Grant of LTE/LTE-a cannot be applied to future wireless communication systems.

Furthermore, for machine type communication (machine type communication, MTC), typical data types, such as meter reading traffic, are non-periodic packets. Therefore, if the data service can be sent to the base station as soon as possible, the Idle mode can be switched into after success, and the power saving effect is achieved. In the work items NB-IoT (narrow band internet of thing) and eMTC (enhanced MTC) of Rel-15, the data traffic information is standardized in the Msg3 message, which is carried in the Msg4 message. However, the RAR in the current NB-IoT system can only indicate that an 88-bit UL grant is used for transmission of Msg 3. Therefore, there is a need to extend the TBS (transport block size) size that UL grant in NB-IoT system RAR can indicate so that it can carry uplink data traffic. For eMTC systems, it is also necessary to extend the TBS of eMTC because the maximum TBS supported in CE mode B (coverage enhancement mode B) is limited. Furthermore, a larger TBS should not have an impact on the previous release UEs, or UEs that do not support this function. Thus, new mechanisms are also needed to avoid impact on UEs that do not support this functionality.

Disclosure of Invention

In order to overcome the technical problems or at least partially solve the technical problems, the following technical schemes are specifically proposed:

according to one aspect, an embodiment of the present invention provides a method for uplink resource allocation, which is performed by a base station, including:

allocating bandwidth part BWP resources and physical resource block PRB resources in BWP for user equipment UE;

the method includes transmitting BWP resource indication information for indicating BWP resources allocated by the base station for the UE and BWP in-PRB resource indication information for indicating BWP in-BWP PRB resources allocated by the base station for the UE to the UE.

According to another aspect, an embodiment of the present invention further provides a method for uplink transmission, which is performed by a UE, including:

receiving BWP resource indication information sent by a base station and PRB resource indication information in BWP;

determining the BWP resources allocated to the base station and the PRB resources in the BWP according to the BWP resource indication information and the PRB resource indication information in the BWP;

and carrying out uplink transmission according to the determined BWP resources allocated to the base station by the base station and PRB resources in BWP.

According to still another aspect, an embodiment of the present invention further provides a base station, including:

An allocation module, configured to allocate bandwidth part BWP resources and physical resource block PRB resources in BWP for a user equipment UE;

and a transmitting module configured to transmit BWP resource indication information for indicating BWP resources allocated by the base station for the UE and BWP in-BWP PRB resource indication information for indicating the BWP in-BWP PRB resources allocated by the base station for the UE to the UE.

According to still another aspect, an embodiment of the present invention further provides a user equipment UE, including:

a receiving module, configured to receive BWP resource indication information sent by a base station and PRB resource indication information in BWP;

and the sending module is used for determining BWP resources allocated to the base station by the base station and PRB resources in BWP according to the BWP resource indication information and the PRB resource indication information in BWP received by the receiving module and carrying out uplink transmission.

According to still another aspect, an embodiment of the present invention further provides a base station, including: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor performs the method of uplink resource allocation performed by the base station.

According to still another aspect, an embodiment of the present invention further provides a user equipment UE, including: a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor performs the above-mentioned method of uplink transmission performed by the user equipment UE.

According to still another aspect, an embodiment of the present invention provides a method for transmitting uplink data, which is performed by a terminal, including:

acquiring PRACH resource pool configuration;

randomly selecting one PRACH resource from the PRACH resource pool to send a preamble sequence;

receiving RAR, judging an MCS table for analyzing the UL grant according to the indication in the RAR, and acquiring TBS and/or resource block and/or modulation mode in the UL grant according to the MCS table;

and reading data from the buffer according to the TBS size, and transmitting Msg3 on the designated UL grant.

Preferably, the terminal determines one of the two MCS tables to parse the UL grant according to the 1 reserved bit in the RAR.

Preferably, the terminal obtains the first MCS configuration in parsing UL grant in the existing RAR, and further obtains the second MCS configuration according to a number of reserved bits.

Further, in the step of obtaining the configuration of the PRACH resource pool, two PRACH resource pools are obtained, wherein if the size of data in the terminal buffer is greater than a threshold, a first one of the two PRACH resource pools is selected, and if the size of data in the terminal buffer is less than the threshold, a second one of the two PRACH resource pools is selected.

Preferably, the two PRACH resource pools may be configured with different mask sequences, and/or the set of resources may be further divided into a first PRACH resource pool by being configured on different carriers, and/or by using resources for non-contention access in an existing PRACH resource packet.

Preferably, the two PRACH resource pools correspond to different MAC RAR formats, respectively.

Further, in the step of obtaining the configuration of the PRACH resource pool, the repetition number of the sending preamble sequence corresponding to the PRACH resource pool is obtained, and the MCS table is analyzed according to the repetition number.

According to still another aspect, an embodiment of the present invention provides a method for receiving uplink data, which is performed by a base station, including:

configuring the repetition times of PRACH resource pool and leading sequence;

detecting a leader sequence;

transmitting RAR, wherein two uplink resource configurations available for Msg3 transmission are configured in the RAR;

and decoding the Msg3 on the corresponding physical resource according to the one or more MCS values.

Preferably, the two uplink resource configurations share a partial scheduling parameter, including one or more of the following parameters: subcarrier spacing, subcarrier allocation, scheduling delay and repetition number.

Preferably, the two uplink resource configurations include two independent MCS fields. Wherein, the MCS field indicates the modulation mode, RU number and TBS value through a predefined table.

Preferably, the two uplink resource configurations correspond to the same MCS domain, but there are different interpretation manners for this MCS domain according to the indication of another domain.

Preferably, the said deciding the interpretation mode of the MCS domain is 1 bit, when the bit indicates "0", the MCS domain is interpreted with a predefined table, and when the bit indicates "1", the MCS domain is interpreted with another predefined table.

According to still another aspect, an embodiment of the present invention provides a terminal, including:

an acquisition module, configured to acquire PRACH resource pool configuration;

a sending module, configured to randomly select one PRACH resource in the PRACH resource pool to send a preamble sequence;

the processing module is used for receiving the RAR, judging an MCS table for analyzing the ULTrants according to the indication in the RAR, and acquiring TBS and/or resource blocks and/or modulation modes in the UL (uplink) grant according to the MCS table;

the reading module is used for reading data from the cache according to the TBS size;

and the sending module is also used for sending the Msg3 on the designated UL grant.

According to still another aspect, an embodiment of the present invention provides a base station, including:

the configuration module is used for configuring the repetition times of the PRACH resource pool and the preamble sequence;

a detection module for detecting a preamble sequence;

a sending module, configured to send an RAR, where two uplink resource configurations available for Msg3 transmission are configured in the RAR;

And the decoding module is used for decoding the Msg3 on the corresponding physical resources according to the one or more MCS values.

Compared with the prior art, the base station allocates bandwidth part BWP resources and physical resource block PRB resources in BWP for User Equipment (UE), then the base station sends BWP resource indication information and BWP internal PRB resource indication information to the UE, the BWP resource indication information is used for indicating the BWP resources allocated by the base station for the UE, the BWP internal PRB resource indication information is used for indicating the BWP internal PRB resources allocated by the base station for the UE, then the UE receives the BWP resource indication information and the BWP internal PRB resource indication information sent by the base station, and then the UE determines the BWP resources allocated by the base station for the base station and the PRB resources in the BWP according to the BWP resource indication information and the BWP internal PRB resource indication information so as to carry out uplink transmission. I.e. a new uplink resource allocation method is designed to be suitable for use in the form of BWP-based bandwidth partitioning for future wireless communication systems.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is an interaction flow chart of an uplink resource allocation method and an uplink transmission method according to an embodiment of the present invention;

fig. 2 is a diagram illustrating UL Grant binary bit arrangement according to this embodiment;

fig. 3 is a diagram illustrating another UL Grant binary bit arrangement according to this embodiment;

fig. 4 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 5 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 6 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 7 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 8 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 9 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 10 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 11 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 12 is a diagram illustrating still another UL Grant binary bit arrangement according to this embodiment;

fig. 13 is a schematic diagram of binary bit arrangement of PRB resource allocation information in BWP in UL Grant according to this embodiment;

Fig. 14 is a schematic diagram of binary bit arrangement of PRB resource allocation information in BWP in UL Grant according to another embodiment;

fig. 15 is a schematic diagram of binary bit arrangement of PRB resource allocation information in BWP in UL Grant according to another embodiment;

fig. 16 is a schematic diagram illustrating binary bit arrangement of PRB resource allocation information in BWP in UL Grant according to another embodiment;

fig. 17 is a schematic diagram of binary bit arrangement of PRB resource allocation information in BWP in UL Grant according to another embodiment;

fig. 18 is a schematic flow chart of UE transmitting UL data through Msg3 in the embodiment of the present invention;

FIG. 19 is a schematic diagram of a MAC RAR of an NB-IOT UE in an embodiment of the present invention;

FIG. 20 is a schematic diagram of MAC RAR of eMTC Mode B UE in an embodiment of the present invention;

fig. 21 is a schematic flow chart of UL data transmission by UE through Msg3 in the embodiment of the present invention;

fig. 22 is a schematic flow chart of a procedure for transmitting TBS information actually used by Msg3 by a UE through PUCCH in an embodiment of the present invention;

fig. 23 is a schematic flow chart of TBS information actually used by the UE through Msg3 piggyback Msg3 in the embodiment of the present invention;

fig. 24 is a schematic flow chart of a UE transmitting TBS information actually used by Msg3 through DMRS of Msg3 in an embodiment of the present invention;

fig. 25 is a schematic flow chart of scheduling Msg3 retransmission by the eNB based on the TBS value actually used by Msg3 in the embodiment of the present invention;

Fig. 26 is a schematic diagram of an exemplary mobile communication network in accordance with an embodiment of the present invention;

fig. 27 is a schematic diagram of an apparatus structure of a base station according to an embodiment of the present invention;

fig. 28 is a schematic diagram of an apparatus structure of a User Equipment (UE) according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, a "terminal" or "terminal device" includes both a device of a wireless signal receiver having no transmitting capability and a device of receiving and transmitting hardware having receiving and transmitting hardware capable of bi-directional communication over a bi-directional communication link, as will be appreciated by those skilled in the art. Such a device may include: a cellular or other communication device having a single-line display or a multi-line display or a cellular or other communication device without a multi-line display; a PCS (Personal Communications Service, personal communication system) that may combine voice, data processing, facsimile and/or data communication capabilities; a PDA (Personal Digital Assistant ) that can include a radio frequency receiver, pager, internet/intranet access, web browser, notepad, calendar and/or GPS (Global Positioning System ) receiver; a conventional laptop and/or palmtop computer or other appliance that has and/or includes a radio frequency receiver. As used herein, "terminal," "terminal device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or adapted and/or configured to operate locally and/or in a distributed fashion, to operate at any other location(s) on earth and/or in space. The "terminal" and "terminal device" used herein may also be a communication terminal, a network access terminal, and a music/video playing terminal, for example, may be a PDA, a MID (Mobile Internet Device ), and/or a mobile phone with a music/video playing function, and may also be a smart tv, a set top box, and other devices.

In the prior art, an uplink resource allocation method of full system bandwidth continuous PRB adopted in UL Grant of LTE/LTE-A cannot be suitable for a future wireless communication system. There is a need to design a new uplink resource allocation method for a BWP-based bandwidth division form in a future wireless communication system.

Aiming at a future wireless communication system, the embodiment of the invention provides a new uplink resource allocation method. In this method, UL Grant is still used for uplink resource allocation, where the uplink resource allocation information at least includes two parts of indication information: some of the information indicating BWP and some of the information indicating PRBs within BWP. If the UL Grant further includes an indication of frequency hopping, the uplink resource allocation information should further include resource allocation of corresponding frequency hopping. Specifically, for the two parts of indication information, the embodiment of the invention provides different specific resource allocation schemes, wherein each scheme supports two different frequency hopping indications of non-frequency hopping and frequency hopping, and also supports three different PRB allocation modes of PRB continuous allocation, discontinuous allocation and partial continuous allocation.

The uplink resource allocation method provided by the embodiment of the invention can be suitable for the situation that the full bandwidth needs to be divided in the future wireless communication system, meets the requirement of diversity resource allocation, has lower complexity and system overhead, can enable users to carry out more efficient uplink transmission and provides better access experience for the users.

Fig. 1 is an interactive flow chart of an uplink resource allocation method, in which,

step 101, a base station allocates bandwidth part BWP resources and physical resource block PRB resources in BWP for user equipment UE; step 102, the base station sends BWP resource indication information and BWP inner PRB resource indication information to the UE, where the BWP resource indication information is used to indicate BWP resources allocated by the base station to the UE, and the BWP inner PRB resource indication information is used to indicate the BWP inner PRB resources allocated by the base station to the UE; step 103, the UE receives BWP resource indication information sent by the base station and PRB resource indication information in BWP; step 104, the UE determines the BWP resources allocated to the base station and the PRB resources in the BWP according to the BWP resource indication information and the in-BWP PRB resource indication information; step 105, the UE performs uplink transmission according to the BWP resources allocated to the UE by the determined base station and the PRB resources in the BWP.

Further, before step 102, the method further includes: the base station transmits remaining system information RMSI based on the resource information of the downlink BWP.

Specifically, step 102 includes: the base station sends BWP resource indication information and PRB resource indication information in BWP to the UE through the uplink authorization information; or, the base station transmits BWP resource indication information to the UE through RMSI, and transmits PRB resource indication information in BWP to the UE through uplink grant information.

If the uplink grant information does not carry the frequency hopping indication information, the BWP resource indication information in the uplink grant information indicates BWP used by the UE for uplink transmission, and the PRB resource indication information in the BWP in the uplink grant information indicates PRB used by the UE for uplink transmission in the BWP indicated by the BWP indication information;

if the uplink grant information carries the frequency hopping indication information, the frequency hopping indication information is located in at least one of the BWP indication information and the PRB resource indication information in the BWP.

Specifically, the arrangement mode of the BWP resource indication information and the PRB resource indication information in the BWP in the uplink grant information is a first preset arrangement mode;

the first preset arrangement mode comprises at least one of the following:

the BWP resource indication information and the PRB resource indication information in BWP are adjacently arranged, and the BWP resource indication information or the PRB resource indication information in BWP is in the most significant bit;

the BWP resource indication information and the PRB resource indication information in BWP are adjacently arranged, and the BWP resource indication information or the PRB resource indication information in BWP is at least significant bits;

the BWP resource indication information and the PRB-within-BWP resource indication information are arranged adjacently, and neither the BWP resource indication information nor the PRB-within-BWP resource indication information is in the most significant bit nor the least significant bit;

The BWP resource indication information and the PRB resource indication information in BWP are not adjacently arranged, and the BWP resource indication information or the PRB resource indication information in BWP is in the most significant bit or the least significant bit;

the BWP resource indication information and the PRB resource indication information in BWP are not adjacently arranged, and neither the BWP resource indication information nor the PRB resource indication information in BWP is in the most significant bit or the least significant bit.

Wherein the method further comprises:

distributing time domain indication information for User Equipment (UE);

wherein, the step of sending the BWP resource indication information and the PRB resource indication information in the BWP to the UE includes: and sending BWP resource indication information, PRB resource indication information in BWP and time indication information to the UE.

Wherein the time domain resource indication information indicates a time domain starting position of uplink data transmission of the UE and a symbol, a mini time slot or a time slot number used in one mini time slot/subframe for uplink data transmission.

Further, the step of transmitting BWP resource indication information, PRB resource indication information within BWP, and time domain indication information to the UE includes any one of the following:

transmitting BWP resource indication information, PRB resource indication information in BWP and time indication information to the UE through the uplink authorization information;

Sending BWP resource indication information to the UE through the RMSI, and sending PRB resource indication information and time indication information in the BWP to the UE through the uplink authorization information;

the BWP resource indication information and the PRB resource indication information in the BWP are used as frequency domain indication information;

the arrangement mode of the frequency domain indication information and the time domain indication information in the uplink authorization information is a second preset arrangement mode;

the second preset arrangement mode comprises at least one of the following:

the frequency domain indication information and the time domain indication information are adjacently arranged, and the frequency domain indication information or the time domain indication information is in the most significant bit;

the frequency domain indication information and the time domain indication information are adjacently arranged, and the frequency domain indication information or the time domain indication information is in the least significant bit;

the frequency domain indication information and the time domain indication information are adjacently arranged, and neither the frequency domain indication information nor the time domain indication information is in the least significant bit nor the most significant bit.

Further, the arrangement mode of the PRB resource indication information and the time indication information in the uplink authorization information in the BWP is a third preset arrangement mode;

the third preset arrangement mode comprises at least one of the following:

the PRB resource indication information in BWP is adjacently arranged, and the time domain indication information or the PRB resource indication information in BWP is in the most significant bit;

The PRB resource indication information in BWP is adjacently arranged, and the time domain indication information or the PRB resource indication information in BWP is in the least significant bit;

the PRB resource indication information in BWP is arranged adjacent to both the time domain indication information and the PRB resource indication information in BWP, and neither the time domain indication information nor the PRB resource indication information in BWP is at least significant bits nor at most significant bits.

Further, the BWP resource indication information indicates BWP resources allocated by the base station for the UE by at least one of:

a first index value, wherein the first index value is an index value of BWP;

and a second index value, wherein the second index value is an index value corresponding to a frequency difference value between the frequency position of the BWP and a frequency position of a preset BWP, and the frequency position includes: a start frequency position or a center frequency position.

A third index value and a fourth index value, the third index value being an index value of BWP allocated by the base station for the UE in the first time unit, the fourth index value being an index value of BWP allocated by the base station for the UE in the second time unit, the time unit comprising: any one of a slot, a mini slot and a subframe;

a fifth index value corresponding to a difference between a frequency position of BWP for uplink transmission and a frequency position of preset BWP allocated to the UE in the first time unit, and a sixth index value corresponding to a difference between a frequency position of BWP for uplink transmission and a frequency position of preset BWP allocated to the UE in the second time unit.

Further, the BWP internal physical resource block PRB resource indication information indicates the BWP internal PRB resource allocated by the base station for the UE by at least one of the following means:

the resource block indicates the index value RIV;

the base station allocates the number of segments of the multi-segment continuous uplink PRB resource to the UE and RIV values corresponding to the segments respectively;

bit map information, wherein PRB resource indication information in BWP is in RBG units;

RBG set indication information and bit map information, wherein PRB resource indication information in BWP takes RBG set as a unit;

the method comprises the steps of RBG aggregate resource allocation information and bit group information, wherein PRB resource indication information in BWP takes PRB as a unit;

the base station allocates at least one of the number of sections of the multi-section continuous RBG resources, the initial position information of each section of resource block group RBG and the length information of each section of RBG to the UE;

the base station allocates at least one of the number of segments of the multiple continuous PRB resources, starting position information of each segment of PRB, and length information of each segment of PRB to the UE.

Further, the starting position information of each RBG segment is used for indicating at least one of the following:

starting positions of RBG resources of each section;

the starting position of the RBG resource of the 0 th section and the difference value of the starting positions of the RBG resources of the rest sections;

The starting position of the RBG resource of the 0 th section and the ratio of the starting positions of the RBG resources of the rest sections;

wherein, the length information of each section RBG is used for indicating at least one of the following:

the length of each section of RBG resource;

the length of the RBG resource of the 0 th section and the difference value of the lengths of the RBG resources of the rest sections;

the length of the RBG resource of the 0 th section and the ratio of the lengths of the RBG resources of the rest sections;

wherein, the starting position information of each PRB is used for indicating at least one of the following:

starting positions of PRB resources of each segment;

starting position of PRB resource of the 0 th segment and difference value of starting position of PRB resource of each remaining segment;

starting position of PRB resource of the 0 th segment and ratio of starting position of PRB resource of each remaining segment;

wherein, the length information of each segment of PRB is used for indicating at least one of the following:

the length of each PRB resource;

the length of the 0 th PRB resource and the difference value of the lengths of the remaining PRB resources;

the length of the 0 th segment PRB resource and the ratio of the lengths of the remaining PRB resources.

Further, step 103 includes any one of the following: comprising the following steps: the UE receives BWP resource indication information sent by the base station through the uplink authorization information and PRB resource indication information in the BWP; and/or the UE receives BWP resource indication information sent by the base station through the RMSI and receives PRB resource indication information in BWP sent by the base station through the uplink authorization information.

Further, if the frequency hopping indication information does not exist in the uplink grant information, the UE determines, according to the BWP resource indication information and the PRB resource indication information in BWP, BWP resources allocated by the base station and PRB resources in BWP, including: the UE determines BWP resources allocated thereto by the base station and PRB resources within BWP from the BWP resource indication information and the in-BWP PRB resource indication information in the uplink grant information.

Further, if the frequency hopping indication information exists in the uplink grant information, the UE determines, according to the BWP resource indication information, a mode of the BWP resource allocated by the base station for the UE, including:

if the BWP resource indication information does not have the frequency hopping indication information, the UE determines BWP resources allocated to the UE by the base station according to the BWP resource indication information in the uplink authorization information; or alternatively, the first and second heat exchangers may be,

if the BWP resource indication information does not have the frequency hopping indication information, determining BWP used for uplink transmission in the first time unit and the second time unit according to the frequency hopping resource allocation information between BWP in the inter-PRB resource indication information in BWP and the BWP resource indication information, respectively; or alternatively, the first and second heat exchangers may be,

if the BWP resource indication information includes the inter-BWP hopping resource allocation information, determining BWP used for uplink transmission in the first time unit and the second time unit according to the inter-BWP hopping resource allocation information and the portion of the BWP resource indication information that is not the hopping resource allocation information, respectively; or alternatively, the first and second heat exchangers may be,

If the BWP resource indication information includes both the inter-BWP hopping resource allocation information and inter-PRB hopping resource allocation information in the BWP, the BWP used for uplink transmission in the first time unit and the second time unit is determined based on the inter-BWP hopping resource allocation information and the portion of the BWP resource indication information that is not the hopping resource allocation information.

Further, if the frequency hopping indication information exists in the uplink grant information, the UE determines, according to the PRB resource indication information in the BWP, a manner of PRB resources in the BWP allocated by the base station for the UE, including:

if the PRB resource indication information in BWP does not contain the frequency hopping indication information, the UE determines PRB resources in BWP allocated by the base station based on the PRB resource indication information in BWP; or alternatively, the first and second heat exchangers may be,

if the intra-BWP PRB resource indicator information does not include the hopping indicator information, determining PRB resources in the BWP used for uplink transmission in the first time unit and the second time unit based on the hopping resource allocation information between PRBs in the BWP resource indicator information and the intra-BWP PRB resource indicator information, respectively; or alternatively, the first and second heat exchangers may be,

if the intra-BWP PRB resource indicator information includes inter-BWP PRB hopping resource allocation information, determining PRB resources in the BWP used for uplink transmission in the first time unit and the second time unit, respectively, based on the inter-BWP PRB hopping resource allocation information and the non-hopping resource in the intra-BWP PRB resource indicator information; or alternatively, the first and second heat exchangers may be,

If the intra-BWP PRB resource indicator information includes both inter-BWP PRB hopping resource allocation information and inter-BWP hopping resource allocation information, the intra-BWP PRB resources used for uplink transmission in the first time unit and the second time unit are determined based on the inter-BWP hopping resource allocation information and the non-hopping resource allocation information in the intra-BWP PRB resource indicator information.

Further, if the UE only obtains the PRB resource indication information in the BWP from the uplink grant information, the method further includes:

if the uplink authorization information does not contain the frequency hopping indication information, the UE determines the PRB resources for uplink transmission allocated in the uplink BWP based on the PRB resource indication information in the BWP acquired in the uplink authorization information; if the uplink grant information includes the frequency hopping indication information, the PRB resources allocated in the first time unit and the second time unit for uplink transmission in the uplink BWP are determined based on the frequency hopping resource allocation information between PRBs in the BWP resource indication information and the portion of the PRB resource indication information that is not the frequency hopping resource allocation information in the BWP.

Specifically, the step of receiving BWP resource indication information and PRB resource indication information in BWP sent by the base station includes:

Receiving BWP resource indication information and intra-BWP PRB resource indication information sent by a base station, and time resource indication information;

the step of determining the BWP resources allocated thereto by the base station and the PRB resources within the BWP according to the BWP resource indication information and the in-BWP PRB resource indication information, comprises:

and determining BWP resources allocated to the base station by the base station, PRB resources in BWP and time resources according to the BWP resource indication information, the BWP resource indication information in BWP and the time resource indication information.

Specifically, the step of receiving BWP resource indication information, PRB resource indication information in BWP, and time resource indication information sent by the base station includes:

receiving BWP resource indication information sent by a base station through uplink authorization information, PRB resource indication information in BWP and time resource indication information; or,

and the receiving base station sends the BWP resource indication information through the RMSI, and the receiving base station sends the PRB resource indication information in the BWP and the time resource indication information through the uplink authorization information.

Specifically, the method for determining the time domain resource according to the time domain resource indication information includes:

and determining the time domain resources allocated to the base station from the time domain resource indication information in the uplink authorization information.

Specifically, according to the BWP resources allocated to the determined base station by the base station and the PRB resources in the BWP, uplink transmission is performed, including: and carrying out uplink transmission according to the BWP resources allocated to the base station by the determined base station, the PRB resources in the BWP and the time resources.

Further, the method further comprises: the UE reads the RMSI and acquires resource information of at least one available uplink BWP, wherein the resource information of each available uplink BWP comprises: at least one of a center frequency position of each BWP, a start frequency position of each BWP, a frequency position difference value, and a bandwidth of the BWP, the frequency position difference value being a position difference value between the center frequency position of the BWP and a center frequency position of a preset BWP or a position difference value between the start frequency position of the BWP and a start frequency position of the preset BWP.

Further, determining, according to the BWP resource indication information, a mode of the BWP resource allocated by the base station for the base station, includes: the UE determines at least one of an index value of an uplink BWP allocated to the UE by the base station and an index value corresponding to a frequency position difference value according to BWP resource indication information carried in the uplink authorization information, and determines at least one of a center frequency position, a starting frequency position and a bandwidth of the BWP allocated to the UE by the base station for uplink transmission according to at least one of the determined index value of the uplink BWP allocated to the UE by the base station and the index value corresponding to the frequency position difference value and the acquired resource information of a plurality of available uplink BWPs; and/or the number of the groups of groups,

The UE determines indexes corresponding to the two uplink BWPs respectively according to the BWP resource indication information carried in the uplink authorization information, and determines at least one of a BWP center frequency position, a starting frequency position and a bandwidth for uplink transmission on a first time unit and a second time unit respectively according to at least one of the indexes corresponding to the determined two uplink BWPs respectively, index values corresponding to the frequency position difference values and the acquired resource information of a plurality of available uplink BWPs.

Further, determining, according to the PRB resource indication information in the BWP, a manner of PRB resources in the BWP allocated by the base station for the base station includes:

the UE determines PRB resources in BWP allocated to the UE by the base station through the RIV value; and/or the number of the groups of groups,

the UE determines PRB resources in BWP allocated by the base station according to the number of segments of the multi-segment continuous uplink PRB resources allocated by the base station for the UE and RIV values respectively corresponding to the segments; and/or the number of the groups of groups,

the UE determines PRB resources in BWP allocated to the UE through bit map information, wherein PRB resource indication information in BWP takes RBG as a unit; and/or the number of the groups of groups,

the UE determines PRB resources in BWP allocated to the UE by the RBG set indication information and the bit map information, wherein the PRB resource indication information in the BWP takes the RBG set as a unit; and/or the number of the groups of groups,

The UE determines PRB resources in BWP allocated to the UE by the RBG aggregate resource allocation information and bit group information, wherein PRB resource indication information in the BWP takes PRB as a unit; and/or the number of the groups of groups,

the UE determines PRB resources in BWP allocated to the UE by the base station through at least one of the number of sections of the multi-section continuous RBG resources allocated to the UE by the base station, the initial position information of each section of RBG and the length information of each section of RBG; and/or the number of the groups of groups,

the UE determines PRB resources within the BWP allocated thereto by the base station through at least one of the number of segments of the multi-segment contiguous PRB resources allocated thereto by the base station, starting position information of each segment of PRB, and length information of each segment of PRB.

Compared with the prior art, the base station allocates bandwidth part BWP resources and physical resource block PRB resources in BWP for User Equipment (UE), then the base station sends BWP resource indication information and BWP resource indication information in BWP to the UE, the BWP resource indication information is used for indicating the BWP resources allocated by the base station for the UE, the BWP resource indication information in BWP is used for indicating the BWP resources allocated by the base station for the UE, then the UE receives the BWP resource indication information and the BWP resource indication information in BWP, which are sent by the base station, and then the UE determines the BWP resources allocated by the base station for the base station and the PRB resources in BWP according to the BWP resource indication information and the BWP resource indication information in BWP so as to carry out uplink transmission. I.e. a new uplink resource allocation method is designed to be suitable for use in the form of BWP-based bandwidth partitioning for future wireless communication systems.

Example 1

The embodiment of the invention introduces a method for a base station to allocate uplink resources for UE. In this embodiment, the bandwidth used by the entire system uplink is divided into several BWP. Wherein each BWP may be continuous, may be partially continuous, or may be discrete. If the whole isThe bandwidth is divided into N upstream BWP (where N is a positive integer), and the N BWP are sequentially numbered and assigned indexes 0,1, …, N-1. Wherein the nth BWP includes L _n The PRBs, L _n The PRBs are also numbered in turn and are assigned indexes 0,1, …, L _n -1。

The UE first detects the physical broadcast channel (Physical Broadcast Channel, PBCH), acquires resource information of one downlink BWP, further acquires remaining system information (Remaining System Information, RMSI) of the BWP and reads all available BWP information in RMSI, which may include index numbers of all available uplink BWP, a center frequency position (or a start frequency position, a frequency position difference with BWP of a known position, etc.), a bandwidth, and the like.

It should be noted that, the information may be displayed or implicit; and the uplink BWP may or may not have a pairing relationship with the downlink BWP.

When the subsequent base station transmits a random access response (Random Access Response, RAR), uses downlink control information (Downlink Control Information, DCI), and the like, and needs to perform uplink scheduling, the transmitted UL Grant includes the following information:

BWP resource indication information

PRB resource indication information within BWP

-other information

When no frequency hopping indication exists in the UL Grant, the BWP resource indication information indicates a certain BWP resource used for uplink data transmission of the UE, and the intra-BWP PRB resource indication information indicates a PRB resource used for uplink data transmission of the UE in the indicated uplink BWP; when there is a frequency hopping indication in UL Grant, the BWP resource indication information may include both frequency hopping indication information and BWP resource information used for UE uplink data transmission, and the indication information of PRB resources in BWP may include both frequency hopping indication information and PRB resource information used for active uplink BWP.

It should be noted that, the frequency hopping indication information may be included in the BWP resource indication information, may be included in the PRB resource indication information in the BWP, or may be included in both the two information; and the frequency hopping indication information may only include frequency hopping resource allocation among BWP, may only include frequency hopping resource allocation among PRBs in the same BWP, and may also include both frequency hopping resource allocation.

Specifically, after converting the above information into binary bits, the composition of UL Grant may have the following several different arrangements from left to right:

(1) The BWP indication information is on the left side of the PRB resource indication information within the BWP and is adjacent to each other, as shown in fig. 2, in several possible cases.

(2) The BWP indication information is on the left side of the PRB resource indication information within the BWP and the two are not adjacent, and specific possible cases are shown in fig. 3.

(3) The BWP indication information is on the right side of the PRB resource indication information within the BWP and is adjacent to each other, as shown in fig. 4, in several possible cases.

(4) The BWP indication information is on the right side of the PRB resource indication information within the BWP and the two are not adjacent, and specific possible cases are shown in fig. 5.

For the different binary bit arrangements of UL Grant, the most significant bit (Most Significant Bit, MSB) of the system may be on the left side or the right side of the least significant bit (Least Significant Bit, LSB). The MSBs and LSBs of fig. 2 to 5 are exchanged, which is also a possible binary bit arrangement of UL Grant in this embodiment. In addition, the BWP resource indication information and the PRB resource indication information in the BWP may be two independent indications, or may be combined into the same indication.

When the UL Grant has no frequency hopping indication information, after receiving the UL Grant, the UE may acquire allocation information of uplink resources by:

11. and reading BWP resource indication information in the UL Grant, and acquiring BWP used by the allocated uplink transmission resources based on the indication information.

12. And reading PRB resource indication information in BWP in the UL Grant, and acquiring PRB resources occupied by the allocated uplink transmission resources in the BWP based on the indication information.

13. And acquiring final PRB resource information for uplink transmission based on the BWP information used by the uplink transmission resources acquired in the step 11 and the PRB resource information occupied by the uplink transmission resources acquired in the step 12 in BWP.

It should be noted that, the step 11 may be performed before the step 12, the step 12 may be performed before the step 11, and the step 11 and the step 12 may be performed simultaneously. The embodiment of the invention is not limited.

When the UL Grant contains the frequency hopping indication information, after receiving the UL Grant, the UE may acquire allocation information of the uplink resource by:

21. the UE reads the BWP resource indication information in the UL Grant, and if no frequency hopping indication information is included therein, obtains the BWP used by the allocated uplink transmission resource based on the indication information, or obtains the BWP used by the uplink transmission resource of the first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) based on the frequency hopping resource allocation information among the BWP obtained in step 22, the BWP resource indication information, and other possible information (e.g., cell identifier, UE identifier, etc.), respectively; if the BWP-to-BWP resource allocation information is included, the BWP used by the uplink transmission resource of the first time slot (or symbol, mini-slot, subframe) and the second time slot (or symbol, mini-slot, subframe) is acquired based on the BWP resource indication information, the portion of the BWP resource indication information that is not the hopping resource allocation information, and other possible information (e.g., cell identifier, UE identifier, etc.), respectively; if the BWP-to-BWP hopping resource allocation information and the BWP-to-PRB hopping resource allocation information are included at the same time, the BWP used by the uplink transmission resource in the first slot (or symbol, mini-slot, subframe) and the second slot (or symbol, mini-slot, subframe) is acquired based on the portion of the BWP hopping resource allocation information and the BWP resource indication information that is not the hopping resource allocation information and other possible information (e.g., cell identity, UE identity, etc.).

22. Reading PRB resource indication information in BWP in UL Grant, if no frequency hopping indication information is contained in the PRB resource indication information, acquiring PRB resources occupied by allocated uplink transmission resources in BWP based on the indication information, or acquiring PRB resources occupied by uplink transmission resources allocated by a first time slot (or a symbol, a mini time slot, a subframe) and a second time slot (or a symbol, a mini time slot, a subframe) in BWP based on frequency hopping resource allocation information among PRBs in BWP, PRB resource indication information in BWP and other possible information (such as a cell identifier, a UE identifier and the like) acquired in the step 21; if the information contains the information of the allocation of the frequency hopping resources among the PRBs in the BWP, based on the indication information, the part of the PRB resource indication information in the BWP which is not the information of the allocation of the frequency hopping resources and other possible information (such as cell identification, UE identification and the like), PRB resources occupied by the uplink transmission resources allocated by the first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) in the BWP are respectively acquired; if the information of the frequency hopping resource allocation between BWP and the information of the frequency hopping resource allocation between PRBs in BWP are contained at the same time, the PRB resources occupied by the uplink transmission resources allocated by the first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) in the BWP are acquired based on the frequency hopping resource allocation information between PRBs in BWP, the part of the PRB resource indication information in BWP that is not the frequency hopping resource allocation information, and other possible information (such as cell identity, UE identity, etc.), respectively.

23. Based on the BWP information and the possible frequency hopping information between BWP used by the uplink transmission resources acquired in step 21 and the PRB resource information occupied by the uplink transmission resources occupied in the BWP and the possible frequency hopping information between PRBs in the BWP acquired in step 22, the PRB resources occupied by the uplink transmission resources allocated in the BWP and the second time slot (or symbol, mini-slot, subframe) that are finally allocated are acquired, respectively.

The step 21 may be performed before the step 22, the step 22 may be performed before the step 21, and the step 21 and the step 22 may be performed simultaneously. The embodiment of the invention is not limited.

Example two

The embodiment of the invention introduces a method for a base station to allocate uplink resources for UE. Similar to the embodiment, the bandwidth used by the entire system upstream is divided into several BWP. Wherein each BWP may be continuousMay be partially continuous or may be discrete. If the entire bandwidth is divided into N upstream BWP (where N is a positive integer), the N BWP are sequentially numbered and assigned indexes 0,1, …, N-1. Wherein the nth BWP includes L _n The PRBs, L _n The PRBs are also numbered in turn and are assigned indexes 0,1, …, L _n -1。

The UE first detects the PBCH, acquires resource information of a downlink BWP, further acquires RMSI under the BWP, and reads resource information of an uplink BWP in the RMSI. In the embodiment of the present invention, RMSI only includes 1 uplink BWP resource information, which may include a center frequency position (or a start frequency position, a frequency position difference value of BWP with a known position, etc.) and a bandwidth of the uplink BWP.

When the subsequent base station transmits RAR, uses DCI, or the like, and needs to perform uplink scheduling, the transmitted ULGrant includes the following information:

PRB resource indication information within BWP

-other information

Wherein when there is no frequency hopping indication in the UL Grant, the in-BWP PRB resource indication information indicates PRB resources used for UE transmission in uplink BWP; when there is a frequency hopping indication in UL Grant, indication information of PRB resources in BWP may include both frequency hopping indication information and PRB resource information used for transmission in uplink BWP.

Specifically, after converting the above information into binary bits, possible specific composition of UL Grant is shown in fig. 6.

It should be noted that, for the different binary bit arrangements of UL Grant in fig. 6, the MSB of the system may be on the left side of LSB or on the right side. The MSB and LSB exchange in fig. 6 is also a possible binary bit arrangement of UL Grant in the embodiment of the present invention.

31. and reading PRB resource indication information in BWP in the UL Grant.

32. The PRB resources allocated in the uplink BWP for uplink transmission are acquired based on the indication information in step 31.

41. and reading frequency hopping resource allocation information among the BWP in the BWP resource indication information in the UL Grant.

42. And reading a part which is not the frequency hopping resource allocation information in the PRB resource indication information in BWP in the BWP resource indication information in the UL Grant.

43. Based on the information obtained in step 41, the information obtained in step 42, and possibly other information (such as cell identity, UE identity, etc.), PRB resources allocated in the uplink BWP of the first slot (or symbol, mini-slot, subframe) and the second slot (or symbol, mini-slot, subframe) are obtained, respectively.

The step 41 may be performed before the step 42, the step 42 may be performed before the step 41, and the step 41 and the step 42 may be performed simultaneously. The embodiment of the invention is not limited.

Example III

The embodiment of the invention introduces a method for a base station to allocate uplink resources for UE. In this embodiment, the bandwidth used by the entire system uplink is divided into several BWP. Wherein each BWP may be continuous, may be partially continuous, or may be discrete. If the entire bandwidth is divided into N upstream BWP (where N is a positive integer), the N BWP are sequentially numbered and assigned indexes 0,1, …, N-1. Wherein the nth BWP includes L _n The PRBs, L _n The PRBs are also numbered in turn and are assigned indexes 0,1, …, L _n -1。

The UE first detects the PBCH, acquires resource information of one downlink BWP, further acquires RMSI under the BWP, and reads all available BWP information in the RMSI, where the information may include index numbers of all available uplink BWP, a center frequency position (or a start frequency position, a frequency position difference with BWP of a known position, etc.), a bandwidth, and the like.

BWP resource indication information

PRB resource indication information within BWP

-time domain resource indication information

-other information

Wherein the time domain resource indication information indicates a time domain start position of uplink data transmission of the UE (for example, K symbols/mini-slots/subframes after the start of downlink data transmission, K is a positive integer) and a symbol, mini-slot or slot number L (L is a positive integer) used in one mini-slot/subframe for uplink data transmission. When there is no frequency hopping indication in UL Grant, the BWP resource indication information indicates a certain BWP resource used for uplink data transmission by the UE, and the intra-BWP PRB resource indication information indicates a PRB resource used for uplink data transmission by the UE in the indicated uplink BWP; when there is a frequency hopping indication in UL Grant, the BWP resource indication information may include both frequency hopping indication information and BWP resource information used for UE uplink data transmission, and the indication information of PRB resources in BWP may include both frequency hopping indication information and PRB resource information used for active uplink BWP.

(1) The time domain indication information is on the left side of the frequency domain indication information (BWP indication information and PRB indication information in BWP are adjacent) and the two are adjacent, as shown in fig. 7 and 8.

(2) The time domain indication information is on the right side of the frequency domain indication information (BWP indication information and PRB indication information in BWP are adjacent) and the two are adjacent, as shown in fig. 9 and 10.

For the above-mentioned different binary bit arrangements of UL Grant, the MSB of the system may be on the left side of LSB or on the right side. The MSB and LSB exchanges in fig. 7 to 10 are also possible binary bit arrangements of UL Grant in this embodiment. In addition, the BWP resource indication information and the PRB resource indication information in the BWP may be two independent indications, or may be combined into the same indication.

51. and reading time domain resource indication information in the UL Grant, and acquiring allocated uplink transmission time domain resources based on the indication information.

52. And reading BWP resource indication information in the UL Grant, and acquiring BWP used by the allocated uplink transmission resources based on the indication information.

53. And reading PRB resource indication information in BWP in the UL Grant, and acquiring PRB resources occupied by the allocated uplink transmission resources in the BWP based on the indication information.

54. And acquiring final resource information for uplink transmission based on the uplink transmission time domain resource acquired in the step 51, the BWP information used by the uplink transmission resource acquired in the step 52, and the PRB resource information occupied by the uplink transmission resource acquired in the step 53 in BWP.

The steps 51, 52 and 53 may be performed in any order, or two or three may be performed simultaneously. The embodiment of the invention is not limited.

61. and reading time domain resource indication information in the UL Grant, and acquiring allocated uplink transmission time domain resources based on the indication information.

62. The UE reads BWP resource indication information in UL Grant, if no frequency hopping indication information is included, obtains BWP used by allocated uplink transmission resources based on the indication information, or obtains BWP used by uplink transmission resources of the first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) based on frequency hopping resource allocation information among the BWP obtained in step 22, part of the BWP resource indication information which is not frequency hopping resource allocation information, and other possible information (e.g. cell identifier, UE identifier, etc.), respectively; if the BWP-to-BWP resource allocation information is included, the BWP used by the uplink transmission resource of the first time slot (or symbol, mini-slot, subframe) and the second time slot (or symbol, mini-slot, subframe) is acquired based on the BWP resource indication information, the portion of the BWP resource indication information that is not the hopping resource allocation information, and other possible information (e.g., cell identifier, UE identifier, etc.), respectively; if the BWP-to-BWP hopping resource allocation information and the BWP-to-PRB hopping resource allocation information are included at the same time, the BWP used by the uplink transmission resource in the first slot (or symbol, mini-slot, subframe) and the second slot (or symbol, mini-slot, subframe) is acquired based on the portion of the BWP hopping resource allocation information and the BWP resource indication information that is not the hopping resource allocation information and other possible information (e.g., cell identity, UE identity, etc.).

63. Reading PRB resource indication information in BWP in UL Grant, if no frequency hopping indication information is contained in the PRB resource indication information, acquiring PRB resources occupied by allocated uplink transmission resources in BWP based on the indication information, or acquiring PRB resources occupied by uplink transmission resources allocated by first time slots (or symbols, mini time slots, subframes) and second time slots (or symbols, mini time slots, subframes) in BWP based on frequency hopping resource allocation information among PRBs in BWP acquired in step 21, parts of PRB resource indication information in BWP and other possible information (such as cell identification, UE identification and the like) respectively; if the information contains the information of the allocation of the frequency hopping resources among the PRBs in the BWP, based on the indication information, the part of the PRB resource indication information in the BWP which is not the information of the allocation of the frequency hopping resources and other possible information (such as cell identification, UE identification and the like), PRB resources occupied by the uplink transmission resources allocated by the first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) in the BWP are respectively acquired; if the information of the frequency hopping resource allocation between BWP and the information of the frequency hopping resource allocation between PRBs in BWP are contained at the same time, the PRB resources occupied by the uplink transmission resources allocated by the first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) in the BWP are acquired based on the frequency hopping resource allocation information between PRBs in BWP, the part of the PRB resource indication information in BWP that is not the frequency hopping resource allocation information, and other possible information (such as cell identity, UE identity, etc.), respectively.

64. Based on the uplink transmission time domain resource acquired in step 61, the BWP information and possible frequency hopping information between BWPs used by the uplink transmission resource acquired in step 62, and the PRB resource information occupied by the uplink transmission resource acquired in step 63 in the BWP and the possible frequency hopping information between PRBs in the BWP, the uplink transmission resources allocated by the final first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) are acquired, respectively.

The steps 61, 62 and 63 may be performed in any order, or two or three may be performed simultaneously. The embodiment of the invention is not limited.

Example IV

The embodiment of the invention introduces a method for a base station to allocate uplink resources for UE. Similar to the embodiment, the bandwidth used by the entire system upstream is divided into several BWP. Wherein each BWP may be continuous, may be partially continuous, or may be discrete. If the entire bandwidth is divided into N upstream BWP (where N is a positive integer), the N BWP are sequentially numbered and assigned indexes 0,1, …, N-1. Wherein the nth BWP includes L _n P numberRB, this L _n The PRBs are also numbered in turn and are assigned indexes 0,1, …, L _n -1。

PRB resource indication information within BWP

-time domain resource indication information

-other information

Wherein the time domain resource indication information indicates a time domain start position of uplink data transmission of the UE (for example, K symbols/mini-slots/subframes after the start of downlink data transmission, K is a positive integer) and a symbol, mini-slot or slot number L (L is a positive integer) used in one mini-slot/subframe for uplink data transmission. When no frequency hopping indication exists in the UL Grant, the PRB resource indication information in the BWP indicates PRB resources used by the UE for transmission in the uplink BWP; when there is a frequency hopping indication in UL Grant, indication information of PRB resources in BWP may include both frequency hopping indication information and PRB resource information used for transmission in uplink BWP.

(1) The time domain indication information is on the left side of the PRB indication information in BWP and the two are adjacent, as shown in fig. 11.

(2) The time domain indication information is on the right side of the PRB indication information in BWP and the two are adjacent, as shown in fig. 12.

For the above-mentioned different binary bit arrangements of UL Grant, the MSB of the system may be on the left side of LSB or on the right side. The MSB and LSB exchanges in fig. 11 to 12 are also possible binary bit arrangements of UL Grant in this embodiment.

step 71, reading time domain resource indication information in the UL Grant, and acquiring allocated uplink transmission time domain resources based on the indication information.

Step 72, the PRB resource indication information in BWP in UL Grant is read.

Step 73, acquiring final resource information for uplink transmission based on the uplink transmission time domain resource acquired in step 71 and the PRB resource information occupied by the uplink transmission resource in BWP in step 72.

The step 71 may be performed before the step 72, the step 72 may be performed before the step 71, and the step 71 and the step 72 may be performed simultaneously. The embodiment of the invention is not limited.

and 81, reading time domain resource indication information in the UL Grant, and acquiring allocated uplink transmission time domain resources based on the indication information.

Step 82, the frequency hopping resource allocation information between the PRBs in the BWP resource indication information in the UL Grant is read.

Step 83 and reading a part which is not the frequency hopping resource allocation information in the PRB resource indication information in BWP in the BWP resource indication information in the UL Grant.

Step 84, based on the uplink transmission time domain resource acquired in step 71, the information acquired in step 82, and the information acquired in step 43 and other possible information (such as cell identifier, UE identifier, etc.), the resources allocated in the first time slot (or symbol, mini-slot, subframe) and the second time slot (or symbol, mini-slot, subframe) uplink BWP are acquired, respectively.

The steps 81, 82 and 83 may be performed in any order, or two or three may be performed simultaneously. The embodiment of the invention is not limited.

Example five

On the basis of the uplink resource allocation method for the UE by the base station described in the first embodiment, the second embodiment, the third embodiment and the fourth embodiment, the embodiment of the present invention specifically describes a method for generating BWP resource indication information and PRB resource indication information in BWP in UL Grant sent by the base station, and a method for detecting the indication information by the UE. In the embodiment of the invention, the bandwidth used by the uplink of the whole system is divided into a plurality of BWPs. Wherein each BWP may be continuous, may be partially continuous, or may be discrete.

After the UE reads the RMSI, the specific indication BWP resource information and the UE detection BWP resource information may have several different types as follows:

type 1: after reading RMSI, the UE obtains N pieces of available upstream BWP (where N is a positive integer and n+.2) information, including the center frequency position or start frequency position of each BWP or the frequency difference from a certain known frequency position BWP. The indexes of the N uplink BWPs are sequentially 0,1, … and N-1; the bandwidth of the nth (N is more than or equal to 0 and less than or equal to N-1) BWP is L _n Several PRBs, and this L _n The indexes of the PRBs are 0,1, … and L in sequence _n -1。

Base station useThe binary information of the bits represents the allocated BWP resources. Wherein, the indexes are BWP and +.1 with N (1.ltoreq.n.ltoreq.N-1) >The binary information of the bits has the following mapping relation: for any BWP with index n, there is a non-repeating length +.>The bit binary information corresponds thereto. One possible mapping relationship is: for the decimal index n, it is converted into a length of +.>The binary numbers (less than the number of bits and added with 0) are arranged according to the sequence of the left MSB, the right LSB or the left LSB, the right MSB as the corresponding BWP resource allocation information.

The base station does not indicate the hopping resource allocation information. And the base station allocates an uplink BWP with an index of N (N is more than or equal to 1 and less than or equal to N-1) for a certain UE, obtains binary information corresponding to the BWP according to the mapping relation, and sends the binary information in the UL Grant as BWP resource allocation information.

After receiving the BWP resource allocation information in the UL Grant, the UE obtains an index of the uplink BWP based on the mapping relation. Based on the index of the uplink BWP and the read RMSI BWP information, the BWP center frequency position (or start frequency position) and bandwidth allocated for uplink transmission are acquired.

Type 2: after the UE reads the RMSI, the UE acquires bandwidth information of the uplink BWP. For a start frequency position or a center frequency position of a BWP of a certain known frequency position, the base station uses a frequency difference from this BWP start frequency position or center frequency position to represent the frequency position of the upstream BWP. Assuming that there are M possible frequency differences, the indexes of the frequency differences are 0,1, …, M-1, respectively, the base station uses The binary information of the bits represents the allocated BWP resources. BWP and ++M-1 with frequency difference index of M (1.ltoreq.m.ltoreq.M-1)>The binary information of the bits has the following mapping relation: for any BWP with a difference index of m, there is a non-repeating length of +.>The bit binary information corresponds thereto. One possible mapping relationship is: the possible frequency differences are arranged from small to large or from large to small, and the difference indexes 0,1, … and M-1 are sequentially allocated, the decimal index is converted into binary numbers according to the method of the case 1, and the converted binary numbers are used as corresponding BWP resource allocation information.

The base station does not indicate the hopping resource allocation information. And the base station allocates an uplink BWP with a difference index of M (M is more than or equal to 1 and less than or equal to M-1) for a certain UE, obtains binary information corresponding to the BWP frequency difference of the known position according to the mapping relation, and sends the binary information in the UL Grant as BWP resource allocation information.

After receiving the BWP resource allocation information in the UL Grant, the UE obtains an index of the frequency difference between the uplink BWP and the known location BWP based on the mapping relation. Based on the index, the frequency location of the known BWP, and the uplink BWP bandwidth information acquired by reading RMSI, the BWP center frequency location (or start frequency location) and bandwidth of the uplink transmission allocation are acquired.

Type 3: based on the type 1, the base station indicates frequency hopping resource allocation information between BWPs. Similarly, after reading RMSI, the UE obtains N pieces of available uplink BWP (where N is a positive integer and n+.2) information, including the center frequency position or the start frequency position of each BWP or the frequency difference from a certain known frequency position BWP. The indexes of N uplink BWPs are 0,1, … and N-1 in sequence, and for any BWP with the index of N, a non-repeated length is presentThe bit binary information corresponds thereto.

The base station allocates two indexes n for a certain UE ₁ And n ₂ (1. Ltoreq.n.ltoreq.N-1) uplink BWP indicating BWP resource allocation of the UE in the first time slot (or symbol, mini-slot, subframe) and the second time slot (or symbol, mini-slot, subframe), respectively. According to the mapping relation, the base station obtains the binary information corresponding to the two BWPs respectively, and sends the two binary information in the UL Grant as BWP resource allocation information.

After receiving the BWP resource allocation information in the UL Grant, the UE obtains two uplink BWP indexes based on the mapping relation. Based on the index and information obtained by reading RMSI, a BWP center frequency position (or start frequency position) and a bandwidth allocated for uplink transmission in the first slot (or symbol, mini-slot, subframe) and the second slot (or symbol, mini-slot, subframe) are obtained, respectively.

Type 4: on a type 2 basis, the base station indicates frequency hopping resource allocation information between BWPs. Similarly, after reading the RMSI, the UE acquires bandwidth information of the uplink BWP. For a start frequency position or a center frequency position of a BWP of a certain known frequency position, the base station uses a frequency difference from this BWP start frequency position or center frequency position to represent the frequency position of the upstream BWP. Assuming that there are M possible frequency differences, the indexes of the frequency differences are 0,1, …, M-1, respectively, the base station usesThe binary information of the bits represents the allocated BWP resources. BWP with frequency difference index of M (M is more than or equal to 1 and less than or equal to M-1) andthe binary information of the bits has the following mapping relation: for any BWP with a difference index of m, there is a non-repeating length of +.>The bit binary information corresponds thereto.

The base station allocates two indexes m for a certain UE ₁ And m ₂ (1.ltoreq.m.ltoreq.M-1) uplink BWP indicating BWP resource allocation of the UE in the first time slot (or symbol, mini-slot, sub-frame) and the second time slot (or symbol, mini-slot, sub-frame), respectively. According to the mapping relation, the base station obtains binary information corresponding to the BWP frequency difference value of the two BWPs and the known position, and sends the binary information in the UL Grant as BWP resource allocation information.

After receiving the BWP resource allocation information in the UL Grant, the UE obtains indexes of the frequency difference between the two uplink BWP and the known location BWP based on the mapping relation. Based on the index and the uplink BWP bandwidth information obtained by reading RMSI, a BWP center frequency position (or start frequency position) and bandwidth allocated for uplink transmission in the first slot (or symbol, mini slot, subframe) and the second slot (or symbol, mini slot, subframe) are obtained, respectively.

On the other hand, for a certain BWP, there may be several different cases of specifically indicating PRB resource information within the BWP and detecting PRB resource information within the BWP by the UE:

type 1: the bandwidth of BWP where uplink resource allocated by base station to UE is located is L _UL Several PRBs, and this L _UL The indexes of the PRBs are 0,1, … and L in sequence _UL -1. Base station usage log ₂ 「L _UL (L _UL +1)/2 bits of information indicate an uplink resource allocation with a starting PRB index position of RBSTART and a length of LCRBs PRBs. In this case, the RIV can be calculated from the following formula:

when the base station does not indicate the frequency hopping resource allocation information among PRBs in BWP, the base station allocates a section of initial PRB index position as RB for a certain UE _START Length L _CRBs Uplink transmission resources of the PRB, calculating the value of RIV according to the relation, and converting the calculated RIV decimal value into a value with the length The binary numbers (less than the number of bits and 0) of the number of bits are arranged in the order of the left MSB, the right LSB, or the left LSB, the right MSB, and the converted binary numbers are transmitted in the UL Grant as PRB resource allocation information in BWP.

After receiving PRB resource allocation information in BWP in UL Grant, UE converts binary information into decimal information to obtain RIV information, and then obtains RB by the following formula _START And L _CRBs Obtain the value of BWP internal upper partRow transmission of allocated PRB information:

if a+b>L _UL RB is then _START ＝L _UL -1-b，L _CRBs ＝L _UL +2-a；

If a+b is less than or equal to L _UL RB is then _START ＝b，L _CRBs ＝a。

If the base station indicates the frequency hopping resource allocation information among the PRBs in the BWP, the PRB resource allocation information in the BWP includes both the frequency hopping resource allocation information and the normal PRB resource allocation information. When the base station allocates PRB resources, the RIV value may be calculated based on the normal PRB resource allocation information as described above. After receiving the resource indication information between PRBs in BWP, the UE may obtain the common PRB resource allocation information from the RIV according to the above method. Based on the frequency hopping resource allocation information, the common PRB resource allocation information and other possible information (such as cell identity, UE identity, etc.), PRB resources occupied by the uplink transmission resources allocated by the first slot (or symbol, mini-slot, subframe) and the second slot (or symbol, mini-slot, subframe) in BWP are acquired respectively.

The length of the PRB resource allocation information in the BWP may be a variable related to the BWP bandwidth or a fixed value. When the information length is a fixed value, if the number of bits required for actually calculating the PRB resource allocation information in BWP is smaller than the fixed value, 0 can be added to MSB or LSB, and the ue can detect after removing these 0 added; if the number of bits required for actually calculating the PRB resource allocation information in BWP is greater than the fixed value, equal-length truncation can be performed at the MSB or LSB, and the UE can supplement several 0 s or 1 s at the corresponding position for detection.

Type 2: the bandwidth of BWP where uplink resource allocated by base station to UE is located is L _UL Several PRBs, and this L _UL The indexes of the PRBs are 0,1, … and L in sequence _UL -1. Base station usage log ₂ 「L _UL (L _UL +1)/2 bits of information indicate a segment of starting PRB index position as RBSTART and uplink resources with length of LCRBs PRBsAnd (5) distribution. In this case, the RIV can be calculated from the following formula:

when the base station does not indicate the frequency hopping resource allocation information among the PRBs in the BWP, the base station allocates Q segments of consecutive uplink PRB resources to a certain UE, where Q is a positive integer and each segment of uplink PRB resources is allocated with indexes 0,1, …, Q-1. The index position of the initial PRB of the uplink transmission resource of the Q (Q is more than or equal to 0 and less than or equal to Q-1) section is Length of->And the number of PRBs. For each section of uplink transmission resource, sequentially calculating RIV value RIV corresponding to the section of resource according to the relation ^q (0.ltoreq.q.ltoreq.Q-1), and converting the calculated RIV decimal value of each segment into a binary number of a fixed length (the length may be +.>Less than digit complement 0). The base station uses the converted resource RIV value of each segment and the possible number of uplink PRB resource segments Q as the PRB resource allocation information in BWP, and transmits the information in UL Grant.

Specifically, after the above information is converted into binary bits, a possible specific composition of PRB resource allocation information in BWP in UL Grant is shown in fig. 13.

For the binary bit arrangement with different PRB resource allocation information in BWP in UL Grant, the MSB of the system may be on the left side or the right side of the LSB. The MSB and LSB exchange in fig. 13 is also a possible binary bit arrangement of PRB resource allocation information in BWP in UL Grant in the embodiment of the present invention.

After receiving PRB resource allocation information in BWP in UL Grant, UE converts binary information into decimal information to obtain uplink transmission resource segment number Q and RIV information of each segment, and then obtains the information by the following formulaTo each sectionAnd->Acquiring the resource information (Q is more than or equal to 0 and less than or equal to Q-1) of each PRB segment allocated by uplink transmission in BWP:

If a is ^q +b ^q >L _UL Then/>

If a is ^q +b ^q ≤L _UL RB is then _START ＝b ^q ，

If the base station indicates the frequency hopping resource allocation information among the PRBs in the BWP, the PRB resource allocation information in the BWP simultaneously comprises the frequency hopping resource allocation information and the common PRB resource allocation information. When the base station allocates the PRB resources, the RIV values of each segment may be calculated based on the normal PRB resource allocation information according to the above-described method. After receiving the resource indication information between PRBs in BWP, UE can obtain the common PRB resource allocation information from the uplink transmission resource segment number and each segment RIV according to the method. Based on the frequency hopping resource allocation information, the common PRB resource allocation information and other possible information (such as cell identity, UE identity, etc.), each segment of PRB resources occupied by the uplink transmission resources allocated by the first time slot (or symbol, mini time slot, subframe) and the second time slot (or symbol, mini time slot, subframe) in the BWP is acquired respectively.

The length of the PRB resource allocation information in the BWP may be a variable related to the BWP bandwidth or a fixed value. When the information length is a fixed value, if the number of bits required for actually calculating the PRB resource allocation information in BWP is smaller than the fixed value, the MSB or LSB of each RIV can be complemented with 0, and the ue can detect after removing these complements 0; if the number of bits required for actually calculating the PRB resource allocation information in BWP is greater than the fixed value, equal-length truncation can be performed on the MSB or LSB of each RIV, and the UE can supplement several 0 or 1 s at the corresponding position for detection.

Type 3: the bandwidth of BWP where uplink resource allocated by base station to UE is located is L _UL Several PRBs, and this L _UL The indexes of the PRBs are 0,1, … and L in sequence _UL -1. The system defines a concept of a resource block group (Resource Block Group, RBG) according to the size of the BWP bandwidth, wherein each RBG consists of a fixed number P of PRBs (the number of PRBs may be smaller than P in RBGs of the BWP edge), where P is a positive integer. Base station useThe bit-map (bit-map) information indicates a PRB uplink resource allocation situation within the BWP and the base station allocates uplink transmission resources in RBG units.

Specifically, indexes 0,1, …, Q-1 are added to Q RBGs in BWP in order and a bit group b= [ b ] is defined ₀ ,…,b _Q-1 ]The number of elements in the bit group is the same as the number of divided RBGs. Element b in a bit group _i The value of (0.ltoreq.i.ltoreq.Q-1) is 0 or 1, indicating whether the ith RBG is allocated, wherein 0 indicates no allocation and 1 indicates allocation.

The base station allocates one or more RBG resources for a certain UE, generates a corresponding bit group according to whether a certain RBG in the BWP is allocated or not by using the above method, and transmits the bit group in UL Grant as PRB resource allocation information in the BWP.

After receiving the PRB resource allocation information in BWP in UL Grant, UE obtains one or more RBG information allocated by uplink transmission in BWP according to the position with value 1 in the information. If multiple RBG resources are allocated, different RBGs may be continuous or discrete.

The length of the PRB resource allocation information in the BWP may be a variable related to the BWP bandwidth or a fixed value.

Type 4: uplink resource allocated by base station for UEThe bandwidth of the BWP where the source is located is L _UL Several PRBs, and this L _UL The indexes of the PRBs are 0,1, … and L in sequence _UL -1. Based on the BWP bandwidth size, the system defines a concept of RBGs, each consisting of a fixed number of P ₁ The number of PRB components (the number of PRBs in RBGs at the BWP edge may be smaller than P ₁ And P) in the formula ₁ Is a positive integer. Where it isBased on the RBGs, the system further defines P ₂ A plurality of RBG sets, wherein the RBG number of each RBG set is +.>Or->In turn P ₂ The RBG sets are assigned indexes 0,1, …, P ₂ -1. The base station uses RBG set indication and bit-map information to indicate PRB uplink resource allocation condition in BWP and allocates uplink transmission resources by taking RBG as unit.

Specifically, for P ₂ A plurality of RBG sets, useThe bit information indicates information of the RBG set. Wherein the index is P (P is more than or equal to 0 and less than or equal to P) ₂ RBG set of-1) and +.>The binary information of the bits has the following mapping relation: for any RBG set, there is a non-duplicate length of +.>The bit information corresponds to it. Let the number of RBGs in the RBG set with index p be Q _p (0≤p≤P ₂ -1) Q in sequence in RBG set _p The RBGs add indices 0,1, …, Q _p -1 and defines the bit group->The number of elements in the bit group is the same as the number of RBGs in the set of RBGs. Element b in a bit group _i (0≤i≤Q _p -1) has a value of 0 or 1, indicating whether the ith RBG is allocated or not, wherein 0 indicates no allocation and 1 indicates allocation.

The base station allocates one or more RBG resources in an RBG set for a certain UE, and by using the method, the resource allocation information of the RBG set is indicated first, then a corresponding bit group is generated according to whether to allocate a certain RBG in the RBG set, and the corresponding bit group and the RBG resource allocation information are contained in PRB resource allocation information in BWP and are sent in UL Grant. It should be noted that the PRB resource allocation information in BWP may further include an RBG offset indication of a fixed bit.

Specifically, after the above information is converted into binary bits, a possible specific composition of PRB resource allocation information in BWP in UL Grant is shown in fig. 14.

For the binary bit arrangement with different PRB resource allocation information in BWP in UL Grant, the MSB of the system may be on the left side or the right side of the LSB. The MSB and LSB exchange in fig. 14 is also a possible binary bit arrangement of PRB resource allocation information in BWP in UL Grant in this embodiment.

After receiving the PRB resource allocation information in BWP in UL Grant, UE obtains RBG set resource allocation information according to RBG set index information therein, and obtains one or more RBG resource information allocated in the RBG set according to the position with value 1 in the RBG resource allocation bitmap information. If multiple RBG resources are allocated, different RBGs may be continuous or discrete.

Type 5: the bandwidth of BWP where uplink resource allocated by base station to UE is located is L _UL Several PRBs, and this L _UL The indexes of the PRBs are 0,1, … and L in sequence _UL -1. Based on the BWP bandwidth size, the system defines a concept of RBG, each of whichThe RBGs are composed of a fixed number of P ₁ The number of PRB components (the number of PRBs in RBGs at the BWP edge may be smaller than P ₁ And P) in the formula ₁ Is a positive integer. At this P ₁ Based on the RBGs, the system further defines P ₂ And a set of RBGs. In turn P ₂ The RBG sets are assigned indexes 0,1, …, P ₂ -1. The base station uses RBG set indication and bit-map information to indicate PRB uplink resource allocation condition in BWP and allocates uplink transmission resources by PRB unit.

Specifically, for P ₂ A plurality of RBG sets, useThe bit information indicates information of the RBG set. Wherein the index is P (P is more than or equal to 0 and less than or equal to P) ₂ RBG set of-1) and +.>The binary information of the bits has the following mapping relation: for any RBG set, there is a non-duplicate length of +.>The bit information corresponds to it.

Let the number of PRBs in the RBG set with index p be Q _p (0≤p≤P ₂ -1) Q in sequence in RBG set _p The PRBs add indexes 0,1, …, Q _p -1 and defining a group of bitsThe number of elements in the bit group is the same as the number of PRBs in the RBG set. Element b in a bit group _i (0≤i≤Q _p -1) has a value of 0 or 1, indicating whether the ith PRB is allocated, wherein 0 indicates no allocation and 1 indicates allocation.

The base station allocates one or more PRB resources in an RBG set for a certain UE, and by using the mode, the base station firstly indicates the resource allocation information of the RBG set, then generates corresponding bit groups according to whether to allocate a certain PRB in the RBG set, and includes the corresponding bit groups in PRB resource allocation information in BWP and sends the PRB resource allocation information in UL Grant. It should be noted that the PRB offset indication of the fixed bit may also be included in the PRB resource allocation information in BWP.

Specifically, after the above information is converted into binary bits, a possible specific composition of PRB resource allocation information in BWP in UL Grant is shown in fig. 15.

For the binary bit arrangement with different PRB resource allocation information in BWP in UL Grant, the MSB of the system may be on the left side or the right side of the LSB. The MSB and LSB exchange in fig. 15 is also a possible binary bit arrangement of PRB resource allocation information in BWP in UL Grant in this embodiment.

After receiving the PRB resource allocation information in BWP in UL Grant, UE obtains RBG set resource allocation information according to the RBG set index information therein, and obtains one or more PRB resource information allocated in the RBG set according to the position with the value of 1 in the PRB resource allocation bitmap information. If multiple PRB resources are allocated, different PRBs may be continuous or discrete.

Type 6: the bandwidth of BWP where uplink resource allocated by base station to UE is located is L _UL Several PRBs, and this L _UL The indexes of the PRBs are 0,1, … and L in sequence _UL -1. The system defines a concept of RBG according to the size of BWP bandwidth. Wherein each RBG consists of a fixed number P of PRBs (the number of PRBs in RBGs at the BWP edge may be less than P), where P is a positive integer. The number of RBGs in BWP is The RBGs are assigned indexes 0,1, …, < >>And the base station allocates uplink transmission resources by taking the RBG as a unit.

The base station allocates Q sections of continuous RBG resources for a certain UE, wherein Q is a positive integer and each section RBG resources are assigned indexes 0,1, …, Q-1. The initial RBG index position of the uplink transmission resource of the Q (Q is more than or equal to 0 and less than or equal to Q-1) section isLength ofAnd RBGs. The base station uses the starting position information of each RBG +.>Length information of RBG per section->And the possible number of RBG resource segments Q, and the PRB resource allocation information in BWP is transmitted in UL Grant.

Specifically, after the above information is converted into binary bits, a possible specific composition of PRB resource allocation information in BWP in UL Grant is shown in fig. 16.

For the binary bit arrangement with different PRB resource allocation information in BWP in UL Grant, the MSB of the system may be on the left side or the right side of the LSB. The MSB and LSB exchange in fig. 16 is also a possible binary bit arrangement of PRB resource allocation information in BWP in UL Grant in this embodiment.

Wherein, the starting position of each RBG resource section may have the following different composition conditions:

(1) Respectively indicating the starting position of each segment of RBG resource

(2) Indicating a starting position of a segment 0 RBG resource And the difference value of the starting position of RBG resources of each remaining section +.>And thisThese differences are generated in a finite set;

(3) Indicating a starting position of a segment 0 RBG resourceAnd the ratio of the starting positions of RBG resources of the rest sections +.>And these ratios are produced in a limited set.

The RBG resource lengths of each segment may have the following different composition conditions:

(1) Indicating the length of each RBG resource

(2) Indicating the length of a segment 0 RBG resourceThe difference value of the lengths of RBG resources of each remaining segmentAnd these differences are generated in a finite set;

(3) Indicating the length of a segment 0 RBG resourceAnd the ratio of the lengths of RBG resources of the rest sectionsAnd these ratios are produced in a limited set.

After receiving the PRB resource allocation information in BWP in UL Grant, UE obtains each segmentAndthe value of (q=0, 1, …, Q-1) of (a) to obtain the uplink transmission partition in BWPAnd each section of RBG resource information is allocated.

Type 7: the bandwidth of BWP where uplink resource allocated by base station to UE is located is L _UL Several PRBs, and this L _UL The indexes of the PRBs are 0,1, … and L in sequence _UL -1. And the base station allocates uplink transmission resources by taking the PRB as a unit.

The base station allocates Q segments of consecutive PRB resources to a certain UE, where Q is a positive integer and each segment of PRB resources is allocated an index of 0,1, …, Q-1. The initial PRG index position of the uplink transmission resource in the Q (Q is more than or equal to 0 and less than or equal to Q-1) section isLength of->And the number of PRBs. The base station uses the starting position information of each PRB section +.>Length information of each RBG And the possible number of PRB resource segments Q, and is transmitted in UL Grant as PRB resource allocation information in BWP.

Specifically, after the above information is converted into binary bits, a possible specific composition of PRB resource allocation information in BWP in UL Grant is shown in fig. 17.

For the binary bit arrangement with different PRB resource allocation information in BWP in UL Grant, the MSB of the system may be on the left side or the right side of the LSB. The MSB and LSB exchange in fig. 17 is also a possible binary bit arrangement of PRB resource allocation information in BWP in UL Grant in this embodiment.

The starting position of each PRB resource segment may have the following different composition conditions:

(1) Indicating starting positions of PRB resources of each segment respectively

(2) Indicating starting position of PRB resource of segment 0Difference of starting positions of PRB resources of each remaining segmentAnd these differences are generated in a finite set;

(3) Indicating starting position of PRB resource of segment 0And the ratio of the starting positions of the PRB resources of the remaining segments +.>And these ratios are produced in a limited set.

The PRB resource length of each segment may have the following different composition cases:

(1) Indicating the length of each PRB resource

(2) Indicating the length of a segment 0 PRB resourceAnd the difference of the resource length of each remaining PRB segment +.>And these differences are generated in a finite set;

(3) Indicating the length of a segment 0 PRB resourceRatio of the resource length of each remaining PRB segmentAnd these ratios are produced in a limited set.

After receiving the PRB resource allocation information in BWP in UL Grant, UE obtains each segmentAnd->The value (q=0, 1, …, Q-1) of the PRB resource information of each segment allocated for uplink transmission in BWP is acquired.

Type 8: the PRB resource allocation information in BWP in UL Grant may combine two or more cases of type 1 to type 7 to make an indication that one of multiple types is selected. Specifically, the PRB resource allocation information in BWP includes the following two parts: indication information of a type and normal PRB resource allocation information. Wherein the indication information of the type indicates one type of PRB resource allocation information in all available BWP, and the normal PRB resource allocation information is consistent with the types 1 to 7 or other possible types of PRB resource allocation information in BWP.

Example six

The embodiment of the invention relates to a process for transmitting UL data by UE through Msg3

In practical applications, NB-IOT UEs and eMTC UEs often support some small data packet services, and if these small data packets are transmitted after RRC connection is established with a base station by conventional methods, control signaling overhead for establishing the RRC connection is large, which is not economical and efficient compared with transmission of small data packets, and transmission delay of UE data is also large. An optimization method is that a small data packet is transmitted as soon as possible in Msg3 of the RACH process, so that the transmission delay of data and the power consumption of UE are greatly improved, and a lot of unnecessary control signaling cost can be saved. The following embodiments describe the flow of the UE transmitting UL data through Msg 3.

Fig. 18 is a schematic flow chart of UE transmitting UL data through Msg 3. In the first step, the UE selects one PRACH resource to transmit Msg1 (i.e. PRACH preamble) in the PRACH resource pool configured by the base station, and the PRACH resource pool used is the same regardless of whether the UE is about to transmit UL data at Msg 3.

And secondly, if the base station detects the Msg1, the base station transmits a corresponding Msg2 (borne by the PDSCH), and allocates two physical resource blocks with different sizes in the UL Grant of the RAR, wherein the two physical resource blocks correspond to different TBS values. Wherein a large TBS value is used to transmit UL data and MAC/RRC layer necessary control signaling such as UE ID at Msg3, and a small TBS value is used to transmit only MAC/RRC layer necessary control signaling such as UE ID at Msg 3.

In order not to affect the previous version of the UE, the first UL grant may be transmitted in the format of the previous version. For example, for NB-IoT, the UL grant in RAR may indicate 88 bits. The second UL grant may use reserved (reserved) information bits in the original RAR format to indicate the new TBS table. In another example, the base station transmits two Msg2, i.e., two PDSCH, to the same UE. Alternatively, the base station transmits one PDSCH including MAC PDUs of two RARs, respectively indicating two UL grant. Alternatively, the base station transmits a MAC PDU of one RAR, and indicates an additional MCS table with reserved bits for indicating an additional TBS, and other parameters are the same as another UL grant, for example, a frequency domain resource location, or a time domain start location, TA (timing advance), TPC command, etc.

Thirdly, the UE receives the Msg2, selects a corresponding TBS value according to whether UL data is to be transmitted at the Msg3, and transmits the Msg3 (carried by PUSCH) on a corresponding physical resource block. For example, if there is UL data to be transmitted in a buffer (buffer) of the UE, a larger TBS allocated in the RAR grant and a corresponding physical resource block are selected; if there is no UL data to be transmitted in the UE's buffer, i.e. UL data is not transmitted in Msg3, then the smaller TBS allocated in the RAR grant and the corresponding physical resource block are selected.

Fourthly, the base station tries to decode the Msg3 on two blocks of resources allocated by the RAR grant, and if the Msg3 is decoded in a larger physical resource block (corresponding to a large TBS value), the eNB considers that the Msg3 has UL data carrying UE; if Msg3 is decoded in a smaller physical resource block (corresponding to a small TBS value), then the eNB considers that Msg3 does not carry UL data for the UE. The base station transmits Msg4 (carried by PDSCH) according to the decoding result of Msg3.

In the flow of fig. 18, whether the UE carries UL data at Msg3 is known by the base station performing blind detection on two physical resource blocks, and no signaling indicates the information to the base station before Msg3 is sent.

In one embodiment, to support the flow of fig. 18, the UL grant in the RAR allocates two physical resources (corresponding to different TBS values) with different sizes, and the UE may select one of the two TBS values to transmit Msg3 according to its own needs. The resource scheduling of these two TBS values may share part of the scheduling information, such as a subcarrier spacing indication (1 bit), a subcarrier allocation information indication (6 bits), a scheduling delay indication (2 bits) and a repetition number indication (3 bits) described in section 16.3.3 of 3GPP specification 36.213. The resource scheduling of the two TBS values is distinguished by different MCS indication fields, the design of the MCS indication fields may refer to the table 16.3.3-1 of the 3GPP specification 36.213, that is, one MCS index may determine the modulation mode, the number of RU (resource unit) and the TBS value, the maximum TBS values supported by the two MCS indication fields are different, and under the same MCS index, the modulation mode, the number of RUs and the TBS value corresponding to the two MCS indication fields may be different. The two physical resources allocated in the RAR grant are identical in the frequency domain, and only the RU number in the time domain is different, i.e., the smaller physical resource block is contained in the larger physical resource block.

In one example, the first MCS indication field may reuse an existing table of the Rel-14 system (see table 16.3.3-1 of 3GPP specification 36.213, which only supports a TBS of 88bits for a fixed value), a UE before Rel-15 version may interpret the MCS indication field, and the second MCS indication field may use a new table (which supports a larger TBS value, such as 256 bits) and only the UE after Rel-15 version and the following UEs may interpret the MCS indication field.

If the UE before the Rel-15 version receives the UL grant in the RAR, the Msg3 is sent according to the dispatching of the first MCS indication domain, and only the necessary control signaling of the MAC/RRC layer such as UE ID is transmitted; if the Rel-15 version and the following UEs receive the ULgrant in this RAR, one of the two MCS indication fields may be selected to transmit Msg3 according to their own needs, and if the second MCS indication field is selected, UL data may be carried in Msg3, otherwise UL data may not be carried in Msg 3. The signaling overhead of the second MCS indication field may occupy a reserved area immediately after the UL Grant field (see "R" field after "UL Grant" in fig. 19) in the existing MAC RAR, and then the overall overhead of the existing MAC RAR remains unchanged.

In one example, the first MCS indication field and the second MCS indication field use the same field indication, but the interpretation mode is determined by another field, and the field for determining the interpretation mode of the MCS indication field is 1bit. In one example, this field is not together with the UL grant in the MAC RAR structure, but occupies the first reserved bit of the MAC RAR of the existing eMTC Mode B UE (see first "R" field in fig. 20). For example, when the "R" field indicates '0', the MCS indication field adopts a first interpretation scheme (e.g., table 1 below, the supported maximum TBS value is 328 bits), and when the "R" field indicates '1', the MCS indication field adopts a second solution (e.g., table 2 below, the supported maximum TBS value is 600 bits). This may leave the existing MAC RAR overhead unchanged to additionally indicate some information for extending the TBS value of the Msg3 PUSCH. In another example, this field belongs to UL grant.

If the UE before the Rel-15 version receives the UL grant in the RAR, msg3 is sent according to the schedule of the first MCS indication domain (table 1), and only the MAC/RRC layer necessary control signaling such as UE ID is transmitted; if the UE in Rel-15 version and later receives the RAR, judging whether the MCS indication domain in the UL grant adopts the scheduling of the table 1 or the table 2 according to the value of the R domain, and further obtaining the TBS value. Tables 1 and 2 are schematic diagrams of two TBSs.

TABLE 1 first TBS Table of CE Mode B

TABLE 2 second TBS Table of CE Mode B

Example seven

Fig. 21 is a schematic flow chart of UE transmitting UL data through Msg3. First, the UE selects a corresponding PRACH resource pool according to whether UL data is sent in the buffer memory. The UE randomly selects one PRACH resource in the selected PRACH resource pool to send Msg1. In one example, the Msg1 initiated PRACH procedure is contention access.

And secondly, the UE receives the Msg2 and interprets the UL grant in the RAR carried by the Msg2 according to the selected PRACH resource pool (or the purpose of initiating PRACH), namely, different PRACH resource pools correspond to different UL grant formats in the RAR.

Third, the UE transmits Msg3 on UL resources allocated by the interpreted UL grant. Note that although the UE selects the resources of NPRACH according to whether UL data transmission is in the buffer, the base station also decides whether to give a sufficiently large TBS according to its scheduling situation. Therefore, after the UE interprets the UL grant, it may be decided whether to carry UL data except for the MAC/RRC layer necessary control signaling or only BRS (buffer status report) information according to a predefined rule.

In the flow of fig. 21, whether the UE is to carry UL data at Msg3 is indicated to the eNB by Msg1, and the eNB may schedule a larger TBS for Msg3 to carry UL data of the UE using the corresponding RAR grant according to the indication.

In one embodiment, different PRACH resource pools are used for different PRACH purposes in fig. 21, and these PRACH resource pools for different PRACH purposes may be differentiated in the code domain, time domain, or frequency domain. In one example, the code field herein refers to a distinction by PRACH preamble, e.g., dividing PRACH preamble into GroupA and GroupB, where the PRACH preamble of GroupA is used for conventional PRACH purposes and the PRACH preamble of GroupB is used for PRACH purposes for transmitting UL data at Msg 3. In one example, for NB-IOT UEs, PRACH resources for different PRACH purposes are configured on different NB-IOT carriers (anchor carrier or non-anchor carriers). In one example, for eMTC UEs, PRACH resources for different PRACH purposes are configured on different narrowband (Narrow-band).

In yet another embodiment, the PRACH resource pools for different PRACH purposes in fig. 21 are distinguished by using different PRACH plus wrap-around different mask (mask) sequences, where the PRACH preamble (preamble) is repeatedly transmitted, one signal sequence may be superimposed on repeated PRACH (i.e. each repeated PRACH is masked by a different signal), there may be multiple signal sequences for the mask, and the eNB blindly solves the mask sequence at the receiving end to obtain additional information. For example, the mask sequences available for 4 PRACH retransmissions are {1, 1} and {1, -1,1-1}, if the UE transmits PRACH with {1, 1}, indicating that the UE requests to establish a normal RRC connection, and if the UE transmits PRACH with {1, -1, -1}, indicating that the UE requests to transmit UL data on Msg 3.

In one embodiment, different PRACH resource pools (or different PRACH purposes) correspond to different UL grant formats in the RAR, where the TBS indicated by the UL grant in the RAR may be the same or different, but the maximum TBS value that may be indicated is definitely different, and the RAR grant corresponding to the PRACH resource pool for transmitting UL data in Msg3 may indicate a larger TBS to support UL data transmission in addition to the necessary MAC/RRC layer necessary control signaling such as UE ID.

Example eight

The embodiment of the invention is used for scheduling the NB-IOT UE to transmit the RAR grant of the UL data at the Msg 3.

The existing NB-IOT UE has a fixed value (88 bits) of the TBS allocable at Msg3, see table 16.3.3-1 of 3gpp Spec 36.213, for transmission of MAC/RRC layer necessary control signaling such as UE ID, and if UL data is to be transmitted at Msg3, the TBS value supportable by Msg3 must be extended. The following embodiments describe a TBS expansion method for Msg3 of NB-IOT UE.

Table 3 is an example of the use of NB-IOT UE to determine the MCS of Msg3 NPUSCH, where the definition and physical meaning of specific parameters can be found in section 16.3.3 of 3GPP Spec 36.213. In this MCS table, two TBS values may be supported, such as 88bits and 256bits given in example table 3. If the eNB is configured with a minimum TBS value of 88bits in the RAR grant, the UE only transmits the necessary control signaling of the MAC/RRC layer such as UE ID and the like in the Msg 3; if the base station configures 256bits of maximum TBS value in RAR grant, the UE can transmit UL data in Msg3 in addition to the necessary control signaling of MAC/RRC layer such as UE ID.

This MCS table may allow the base station to flexibly decide whether to schedule the UE to transmit UL data in Msg3 according to the actual resource allocation, and although the UE requests to transmit UL data in Msg3 through the dedicated PRACH resource pool, the base station may not schedule the UE to transmit UL data in Msg 3.

In another embodiment, the MCS table may support multiple TBS values, i.e., the eNB may flexibly determine whether to allow the UE to carry UL data in Msg3 according to the actual resource allocation situation, and may also determine the UL data size carried by the UE in Msg 3. For example, the MCS table may support three TBS values, where the smallest TBS value is used for transmission of MAC/RRC layer necessary control signaling such as UE ID, the middle TBS value is used for transmission of MAC/RRC layer necessary control signaling such as UE ID and a small amount of UL data (e.g., BSR), and the largest TBS value is used for transmission of MAC/RRC layer necessary control signaling such as UE ID and a large amount of UL data.

In yet another embodiment, the minimum TBS value supported by table 3 is a predefined value (88 bits), and the maximum TBS value is not a predefined value, but is statically configured by the base station in SIB (system information block). In one example, the base station configures only one TBS value in the SIB for transmitting UL data at Msg 3. In another example, the base station configures multiple TBS values (e.g., 2 or 3) in the SIB for transmitting UL data at Msg3 to flexibly schedule the size of UL data packets transmitted at Msg 3.

In yet another embodiment, the maximum TBS value supported in table 3 relates to the resource pool selected at Msg1, i.e. the UE may request UL data transmission at Msg3 according to the selection request of Msg1, and may request TBS of corresponding size for UL data transmission according to the buffered data size. In other words, the UE may report the buffer data size at Msg1, and the base station indicates, at Msg2, a TBS value with a corresponding size according to the buffer data size reported by Msg1, for Msg3 to carry UL data.

For example, there are two PRACH mask sequences corresponding to different Msg3 maximum TBS values, the Msg3 maximum TBS value corresponding to the PRACH mask sequence {1, 1} is 536bits for transmitting more UL data at Msg3, and the Msg3 maximum TBS value corresponding to the PRACH mask sequence {1, -1, -1} is 256bits for transmitting less UL data at Msg 3.

TABLE 3 MCS table for Msg3 NPUSCH for NB-IOT UE

Table 4 is another example of MCS table used by NB-IOT UE to determine Msg3 NPUSCH, where definition and physical meaning of specific parameters can be found in section 16.3.3 of 3GPP Spec 36.213, where Nrep refers to the number of PRACH repetitions selected by UE at Msg 1. The MCS/TBS table is similar to table 1, and can support two TBS values, a small TBS value is used to transmit only MAC/RRC layer necessary control signaling such as UE ID, and a large TBS value is used to transmit MAC/RRC layer necessary control signaling such as UE ID and UL data.

Table 4 differs from table 3 in that the code rate selection supporting the TBS transmission is related to the NPRACH repetition number selected at Msg1, i.e., the number of RUs and/or modulation scheme corresponding to the NPRACH repetition number may be different at the same MCS value. When the NPRACH repetition number is small, the Msg3 transmission carrying UL data may use a higher code rate, and when the NPRACH repetition number is large, the Msg3 transmission carrying UL data may use a lower code rate.

TABLE 4 MCS table for Msg3 NPUSCH for NB-IOT UE

For example, in Table 4, when Msg1 has a selected NPRACH repetition number equal to R1, the interpretation of the number of RUs is one column of Table 4, and when Msg1 has a selected NPRACH repetition number equal to R2/R3, the interpretation of the number of RUs is another column of Table 4. Here, R1, R2, and R3 are three different repetition numbers of NPRACH configured in SIB at the eNB, and the UE selects a corresponding NPRACH repetition number according to its own channel quality.

In another embodiment, at the same MCS value, different NPRACH repetition numbers correspond to different TBS values, for example, the maximum TBS value supported when the NPRACH repetition number is smaller may be larger, and the maximum TBS value supported when the NPRACH repetition number is smaller may be smaller, because when the UE channel quality is poor, transmitting a larger TBS at Msg3 may occupy more resources, if the transmission contention of Msg3 fails, it is wasteful for system resources, and it is more efficient to determine the supportable TBS value according to the UE channel quality (corresponding to the NPRACH repetition number).

In yet another embodiment, the number of repetitions of different NPRACHs corresponds to different MCS tables, i.e. the modulation scheme, RU number and TBS value corresponding to the number of repetitions of different NPRACHs may all be different under the same MCS index.

Example nine

The embodiment of the invention is used for scheduling the eMTC modeB UE to transmit the RAR of the UL data in the Msg 3.

The existing eMTC modeB UE has a maximum value of 328bits of TBS allocable at Msg3, see section 6.2 of 3gpp Spec 36.213, which is suitable for transmitting MAC/RRC layer necessary control signaling such as UE ID at Msg3, and if UL data is to be transmitted at Msg3, the TBS value supportable by Msg3 must be extended. The following embodiments describe TBS extension methods for Msg3PUSCH for eMTC modeB UEs.

The number of PRBs assignable by the existing eMTC modeB UE is 3 and 6, and the TBS of the msg3PUSCH is valued by indexing the TBS of the regular PUSCH (I _TBS ) The range is truncated to obtain the lowest 4 values, and in order to expand the TBS value, the TBS value is modified to intermittently select 4 TBS indexes of a normal PUSCH to obtain, and meanwhile, the TBS domain size (2 bits) in the RAR grant is maintained unchanged. Example(s)As table 5 is a TBS table of the existing eMTC PUSCH (only I is shown _TBS 0-7), several discrete TBS values (e.g. I) with PRB number of 3 and 6 columns are selected _TBS TBS values corresponding to 0,2,4, 6) are used for Mode B UE, then table 6 is the TBS table of the Msg3PUSCH for eMTC Mode B UE, where the maximum TBS value supportable is 600bits, and is used for merging transmission of MAC/RRC layer necessary control signaling such as UE ID and UL data in Msg 3.

Table 5 TBS table (section) for eMTC PUSCH

TABLE 6 TBS Table for Msg3 PUSCH of eMTC mode B

Examples ten

The embodiment of the invention is used for scheduling eMTC UE to transmit UL data on the Msg3 PUSCH, wherein a base station provides a plurality of possible TBSs in an RAR grant for the UE to select one TBS value which is most matched with the data size in a MAC buffer to transmit the Msg3, so that the number of padding bits in the MAC PDU is reduced as much as possible, the base station can perform blind decoding on the Msg3 based on the plurality of possible TBS values, and the maximum blind decoding times are consistent with the provided number of possible TBSs.

In this embodiment, the multiple possible TBSs are transmitted using the same resource allocation, the same modulation scheme (QPSK is used by default) and different repetition times, and the existing indication field for the repetition times in the RAR grant is used by default for one TBS with the largest value among the multiple TBSs, and the repetition times corresponding to the other TBSs can be calculated based on the repetition times indicated by the indication field and a predefined formula.

In one example, the formula is: rn_2= { rn_1, (tbs_2+24)/(tbs_1+24) }, in another example, the formula is rn_2= { rn_1, (tbs_2)/(tbs_1) }. Here, tbs_1 is the one TBS with the largest value among the TBSs, rn_1 is the number of repetitions corresponding to tbs_1, that is, the number of repetitions indicated in the RAR grant, tbs_2 is the other TBS with the largest removal value among the TBSs, rn_2 is the number of repetitions corresponding to tbs_2, and rn_2 can be implicitly derived from rn_1. In one example, the calculation operator { } refers to selecting one closest value up among all the repetition times supported by the existing specification for the value within { }, and in another example, the calculation operator { } refers to selecting one closest value satisfying a multiple of 2 up for the value within { }.

For example, for CE Mode B, the set of all repetition number values supported by the existing specification is {1,4,8,16,32,64,128,192,256,384,512,768,1024,1536,2048}, assuming tbs_1=1000 bits, rn_1=1024, tbs_2=328 bits, then rn_2= {1024, (328+24)/(1000+24) }, then rn_2=384, as the closest value is selected up in the existing repetition number; rn_2=352 by selecting the closest value satisfying the multiple of 2 upward.

In this embodiment, the indication of the plurality of TBS values in the RAR grant may be implemented based on a predefined TBS set table indicating which TBS set is therein. For example, tables 7 and 8 show an example of TBS set tables for CE Mode a and CE Mode B, respectively, which may provide a plurality of possible TBS sets, for example, TBS sets may contain 1 to 4 TBS values, and then the blind decoding number of Msg3 corresponding to the base station is 1 to 4.

The value in one TBS set may be selected in an arithmetic progression, or TBS values corresponding to a plurality of typical EDT traffic may be selected. The maximum TBS value contained in these TBS sets should be the same, which is also the maximum TBS value allowed by EDT Msg3 broadcasted by the base station in the system information. The base station may configure a corresponding maximum TBS value for each CE level, where each broadcasted maximum TBS value corresponds to a TBS set table. For example, the maximum TBS value supported by EDTMsg3 broadcast in the system information may have 8 candidate values, and then corresponds to 8 TBSset tables at most.

In addition, the base station may broadcast whether multiple TBS values can be used in the system information, if the base station configures the multiple TBS values to be used, the UE may select one TBS value from the indicated TBS sets for transmission of Msg3, and if the base station does not configure the multiple TBS values to be used, the UE may select only the largest one TBS value from the indicated TBS sets for transmission of Msg 3.

TABLE 7 TBS set Table for Msg3 PUSCH of CE Mode A

Index	TBS set
		‘000’	{1000,776,552,328}bits
‘001’	{1000,840,632,424}bits
		‘010’	{1000,632,328}bits
‘011’	{1000,776,424}bits
		‘100’	{1000,776}bits
‘101’	{1000,552}bits
		‘110’	1000bits
‘111’	Reserved status

TABLE 8 TBS set Table for Msg3 PUSCH of CE Mode A

Index	TBS set
		‘000’	{936,776,552,328}bits
‘001’	{936,632,328}bits
		‘010’	{936,552}bits
‘011’	936bits

Table 7 contains 8 TBS sets, and can reuse the existing 3bit MCS indication field in the RAR grant to indicate, and table 8 contains 4 TBS sets, and can reuse the existing 3bit TBS indication field in the RAR grant to indicate, so that the overall size of the RAR grant can be kept unchanged.

Example eleven

The embodiment of the invention is used for scheduling NB-IOT UE to transmit UL data in Msg3 NPUSCH, wherein a base station provides a plurality of possible TBSs in RAR grant for UE to select, the UE selects one TBS value which is most matched with the data size in a MAC buffer to transmit Msg3, so that the number of padding bits in the MAC PDU is reduced as much as possible, the base station can perform blind decoding on the Msg3 based on the plurality of possible TBS values, and the maximum blind decoding times are consistent with the provided number of possible TBSs.

In this embodiment, the transmission of the plurality of possible TBSs uses the same resource allocation (frequency domain resource allocation within one RU), the same modulation scheme, different numbers of RUs and the same number of repetitions, and the indication of the plurality of TBS values and corresponding numbers of RUs in the RAR grant may be implemented based on a predefined MCS/RU/TBS table indicating which MCS/RU/TBS value is among them.

For example, table 9 gives an example of an MCS/RU/TBS table for Msg3 NPUSCH of NB-IOT, which may provide a plurality of possible TBS sets for EDT Msg3, e.g. TBS sets may contain 1 to 4 TBS values, and the blind decoding number of Msg3 corresponding to the base station is 1 to 4. And for each TBS set there is a corresponding number of RUs in the column of RU number, e.g. the '00111' value in the table indicates a TBS set comprising 4 TBS, i.e. 1000,776,552,328} bits, the RU numbers corresponding to these 4 TBS values being 10,8,6,4, respectively.

For EDT Msg3, the values in one TBS set may be selected in an arithmetic progression, or TBS values corresponding to a plurality of typical EDT traffic may be selected. The maximum TBS value contained in these TBS sets should be the same, which is also the maximum TBS value allowed by EDT Msg3 broadcasted by the base station in the system information. The base station may configure a corresponding maximum TBS value for each CE level, where each broadcasted maximum TBS value corresponds to one MCS/RU/TBS table.

In addition, table 9 also contains TBS values for non-EDT Msg3, that is, 88bits TBS for Msg3 NPUSCH in the existing specification (containing the possibility of 3 RU allocations), so that when the base station is allocating resources for Msg3, if the available resources at that time are not enough for carrying UE data at Msg3, the base station can roll back EDT to non-EDT mode, that is, indicates a TBS value of 88bits in RAR grant, and if the UE receives the indication, msg3 cannot carry UE data, only for transmitting UE ID and necessary MAC/RRC layer control signaling.

The number of indications contained in table 9 may be greater than the existing canonical MCS/RU/TBS table, then the existing 3bit MCS/RU/TBS indication field in the RAN grant may be extended, e.g., to 5 bits for supporting table 9.

TABLE 9 MCS/RU/TBS Table for Msg3 NPUSCH of NB-IOT

In another example, table 9 contains only an indication of MCS/TBS values, i.e. an indication of modulation scheme and TBS set, and the RU number is indicated by another dedicated field in the RAR grant, similar to the description of the repetition number in embodiment ten, where the RU number indicated in the RAR grant is for the largest TBS value in the indicated TBS set, and the RU numbers corresponding to other TBS values may be calculated based on the RU number indicated in this indicated field and a predefined formula, e.g. using a calculation formula similar to that in embodiment ten.

In another embodiment, the multiple TBS values use the same resource allocation (frequency domain resource allocation in one RU), the same modulation scheme, the same number of RUs and different repetition times, and similar to the description for eMTC in embodiment ten, the existing indication field for the repetition times in RAR grant is default for one TBS with the largest value among the multiple TBSs, and the repetition times corresponding to other TBSs can be calculated based on the repetition times indicated by the indication field and a predefined formula, for example, using a similar calculation formula as in embodiment ten.

Example twelve

In the feature supported by Msg3 EDT (Early Data Transmission), the base station does not know the data size actually required to be transmitted by the UE before receiving Msg3, and cannot provide accurate TBS for Msg3, when the TBS value of Msg3 is greater than the data size required to be transmitted by the UE, the UE can only perform bit padding on the MAC PDU, so as to reduce the number of padding bits in Msg3 by the UE, the base station provides multiple possible TBSs for Msg3 for the UE to select, the UE selects one of the TBSs most suitable for Msg3 according to the actual data size, and at the receiving end, the base station needs to perform blind decoding on Msg3 based on multiple possible TBS hypotheses, which can bring additional complexity to the base station, so as to avoid such blind decoding, the UE can inform the base station of TBS information actually used by Msg3 before sending Msg3 or when sending Msg3, and can detect the TBS value used by Msg3 according to the TBS value used by Msg 3.

In one embodiment, the eNB provides multiple possible TBSs for Msg3 for the UE to select an appropriate TBS value according to the actual data size, the UE transmits TBS information used for the actual transmission of Msg3 through the PUCCH and sends the TBS information to the base station before sending Msg3, and the eNB may detect the TBS information used for the actual transmission of Msg3 and decode Msg3 based on the TBS value, so as to avoid blind decoding of multiple TBS hypotheses for Msg3, where the specific steps of this embodiment are shown in fig. 22:

in the first step, the UE sends a PRACH to the eNB requesting EDT.

And secondly, after receiving the PRACH, the eNB sends a RAR to schedule the Msg3 to the UE, and provides a plurality of possible TBSs for the Msg3 for the UE to select.

And thirdly, after receiving the RAR, the UE selects one TBS value for Msg3 according to the transmitted data volume, and sends the selected TBS information to the base station through the PUCCH.

Fourth, the UE transmits Msg3 immediately after transmitting the PUCCH based on the selected TBS value.

In the above embodiment, the base station provides up to 4 possible TBSs for the Msg3 for the UE to select, i.e. the TBS information used for the actual transmission of the Msg3 may be indicated by up to 2bits, and the PUCCH used for carrying the 1-2 bits TBS information may reuse the existing PUCCH format.

In one example, the PUCCH format used to carry TBS information used by the Msg3 for actual transmission is related to the number of possible TBSs provided by the base station for Msg3, which may be related to the maximum TBS value of Msg3 broadcast in the system information, or may be related to real-time scheduling by the base station. For example, when the base station provides 2 TBSs for Msg3 for the UE to select, the existing PUCCH format 1a may be used to carry the 1bit information; and when the base station provides 3-4 TBSs for Msg3 for the UE to select, the existing PUCCH format 1b may be used to carry the 2bit information.

In another example, when the base station provides 2-4 TBSs for Msg3 for the UE to select, the fixed use PUCCH format 1b carries TBS information used for the actual transmission of Msg 3.

For eMTC UEs, referring to the description of HARQ-ACK resources at section 10.1.2.1 of the existing standard 3gpp 36.213, when MPDCCH-PRB-set for scheduling Msg2 is configured for distributed transmission, the PUCCH resources are calculated according to the following formula:

the calculation formula can be similarly obtained when the MPDCCH-PRB-set is configured for centralized transmission. Wherein p is ₀ For antenna port number. q is the index number of the MPDCCH-PRB-set used for scheduling Msg 2. n is n _ECCE,q Index number of starting CCE occupied by MPDCCH of Msg 2.For base station pair MPDCH-PRB-set _q Configured PUCCH parameters (reference PUCCH resources).

In one example, the parameterThe parameters used by the PUCCH carrying the ACK/NACK of the Msg4 are the same, namely, the parameters n1PUCCH-AN-InfoList-r13 broadcasted by the base station in the system information are configured with corresponding reference PUCCH resource values for each CE level; in another example, the parameter +.>The PUCCH dedicated to carry TBS information used for actual transmission of Msg3 may be named n1PUCCH-Msg 3-infoslist-r 15, unlike the parameters used for PUCCH carrying ACK/NACK of Msg4, which is broadcast by the base station in system information and configures a corresponding reference PUCCH resource value for each CE level, similar to the existing parameter n1 PUCCH-AN-infoslist-r 13.

Where rar_id is an index number of the UE's RAR in the MAC PDU, one or more MAC RARs are included in the MAC PDU of Msg2, e.g., rar_id=0 of the first MAC RAR of the MAC PDU, and rar_id=n-1 of the nth MAC RAR. In another example, the rar_id in the above calculation formula is replaced by the preamble ID used by Msg1 PRACH.

In another example, the calculation formula of the resources of the PUCCH is (rar_id and other descriptions can be reused):

Wherein delta is _ARO Indicated by ARO field included in MPDCCH of Msg2, the indicated values are interpreted according to table 10, table 10 referring to table 10.1.2.1-1 of 3gpp 36.213 of the existing standard.

TABLE 10Δ _ARO Interpretation of values

ACK/NACK Resource offset field	Δ _ARO
		0	0
1	-1
		2	-2
3	2

In the above embodiment, the transmission time of the PUCCH carrying the TBS information actually used by the Msg3 is reused in the method for determining the transmission time of the Msg3 in the existing system, for example, the UE transmits the PUCCH in the 6 th subframe after receiving the Msg2, and the existing Msg3 may be transmitted immediately after the PUCCH.

In the above embodiment, the number of repetitions of PUCCH for carrying TBS information used for the actual transmission of Msg3 is the same as the number of repetitions of PUCCH for carrying ACK/NACK of Msg4, i.e. the number of repetitions of PUCCH configured by the base station for each CE level in the system information.

In the above embodiment, the PUCCH is transmitted before Msg3, and the time relationship between the PUCCH and Msg3 complies with a predefined rule. For example, msg3 is transmitted immediately after the PUCCH, i.e., the UE transmits Msg3 in the 1 st subframe after transmitting the PUCCH, and if the PUCCH is a repeated transmission, the UE transmits Msg3 in the 1 st subframe after transmitting the last subframe of the PUCCH. In another example, the PUCCH has a fixed interval from Msg3 to reserve the decoding time of the PUCCH by the base station, for example, the UE transmits Msg3 in the 3 rd subframe after transmitting the PUCCH, and if the PUCCH is a repeated transmission, the UE transmits Msg3 in the 3 rd subframe after transmitting the last subframe of the PUCCH.

In the above embodiment, when the base station provides only one TBS value for Msg3, the PUCCH does not need to be transmitted, and Msg3 follows the existing transmission time, i.e. the UE transmits Msg3 in the 6 th subframe after receiving Msg 2.

For NB-IOT UEs, TBS information used for actual transmission of Msg3 is transmitted through NPUSCH format 2, in the existing system, the time-frequency resource of NPUSCH format 2 is explicitly indicated by a 4-bit HARQ-ACK resource indication field of the corresponding DCI, and when NPUSCH format 2 is used to carry TBS information used for actual transmission of Msg3, the corresponding resource is jointly determined by the HARQ-ACK resource indicated by DCI for scheduling Msg2 and rar_id, for example, according to the following formula:

Resource_index＝(AN_resource+RAR_ID)mod16

wherein AN_resource is AN indication value (0-15) contained in MPDCH of Msg2, RAR_ID is AN index of RAR of the UE in the MAC PDU, the calculated resource_index range is 0-15, and time-frequency resources corresponding to NPUSCH format 2 are determined according to the existing tables 11 and 12, and the tables 11 and 12 refer to the tables 16.4.2-1 and 16.4.2-2 of the existing standard 3GPP 36.213.

In another example, the resource_index is determined according to the following formula (RAR_ID and other descriptions can be reused):

Resource_index＝RAR_IDmod16

table 11 time-frequency resource determination of PUCCH at 3.75kHz subcarrier spacing.

Table 12 time-frequency resource determination of PUCCH at subcarrier spacing of 15 kHz.

For NB-IOT UE, the sending time of Msg3 is explicitly indicated in RAR grant by the indication field of 2-bit scheduling delay, the base station shall ensure that the NPUSCH format 1 carrying Msg3 is sent after the NPUSCH format 2 carrying TBS information used by the actual transmission of Msg3 when scheduling Msg3, and if NPUSCH format 2 is resent, it shall ensure that the above NPUSCH format 1 is restarted after the above NPUSCH format 2 is completely sent.

In one example, NPUSCH format 1 carrying Msg3 has a predefined time relationship with NPUSCH format 2 carrying TBS information used for actual transmission of Msg3, and the transmission time of NPUSCH format 1 may be determined according to the predefined time relationship and the transmission time of NPUSCH format 2, or the transmission time of NPUSCH format 1 may be determined according to the predefined time relationship and the transmission time of NPUSCH format 2.

In one example, the transmission time of NPUSCH format 2 carrying TBS information used for actual transmission of Msg3 is indicated in the corresponding RAR grant, for example by a dedicated 2-bit indication field, see table 13, table 13 referring to table 16.5.1-1 of existing standard 3gpp 36.213, NPUSCH format 1 carrying Msg3 being transmitted immediately after the NPUSCH format 2.

Table 13 scheduling delay k of TBS information used for Msg3 actual transmission ₀

I _Delay	k ₀
		0	12
1	16
		2	32
3	64

In another embodiment, the eNB provides multiple possible TBSs for Msg3 for the UE to select an appropriate TBS value according to the actual data size, the UE transmits TBS information used for the actual transmission of Msg3 through Msg3 piggyback, and sends the TBS information to the base station together when sending Msg3, so that the eNB may detect the TBS information used for the actual transmission of Msg3 and decode Msg3 based on the TBS value, so as to avoid blind decoding of multiple TBS hypotheses for Msg3, and the specific steps of this embodiment are shown in fig. 23:

in the first step, the UE sends a PRACH to the eNB requesting EDT.

And thirdly, after receiving the RAR, the UE selects one TBS to send Msg3 according to the size of the transmitted data volume, and sends the selected TBS information to the base station through the Msg3 piggyback.

In the above embodiment, the base station provides up to 4 possible TBSs for Msg3 for the UE to select, i.e. the TBS information used by the actual transmission of Msg3 may be indicated by up to 2 bits, which may occupy part of the resources of Msg3 for transmission, and when the base station provides only one TBS for Msg3, no transmission of TBS information is required.

In one example, when the base station provides 2-4 possible TBSs for Msg3, the TBS information used by the Msg3 actual transmission is fixedly indicated using 2-bit information. In another example, when the base station provides 3 to 4 possible TBSs for Msg3, TBS information used by Msg3 for actual transmission is indicated using 2-bit information, and when the base station provides 2 possible TBSs for Msg3, TBS information used by Msg3 for actual transmission is indicated using 1-bit information.

In one example, when TBS information is transmitted by Msg3 piggyback, the number of REs used to carry TBS information is a fixed value. In another example, the number of REs used to carry TBS information is related to one or more of the following factors, including the number of bits of TBS information, a number of possible TBS values provided by the base station to Msg3, the number of total REs allocated to Msg3 by the base station (within one subframe), etc.

In one example, the number of REs used to carry TBS information is only related to the number of bits of TBS information, e.g., N for TBS information of 1 bit and 2N for TBS information of 2 bits.

In one example, the number of REs used to carry TBS information is the same as the existing method of determining the number of REs occupied by 1-2 bit HARQ-ACKs in PUSCH piggyback. In another example, the number of REs used to carry TBS information is the same as the existing method of determining the number of REs occupied by CSI in PUSCHpiggyback.

In one example, the coding scheme of the TBS information is the same as that used in the PUSCH piggyback for the existing 1-2 bit HARQ-ACK, i.e., repetition coding. In another example, the coding mode of the TBS information is the same as the coding mode used in the PUSCH piggyback for the existing CSI, i.e. Reed-Muller coding.

In one example, the RE mapping of TBS information is similar to the RE mapping of existing 1-2 bit HARQ-ACKs on PUSCH piggyback, i.e., on surrounding REs of DMRS symbols. In another example, the RE position occupied by the TBS information is similar to the RE position occupied by the existing CSI when the PUSCH piggyback is performed, that is, mapping is started from the lowest position or the highest position of the frequency domain resource, and a mapping manner of time domain first and frequency domain second is adopted.

In one example, when TBS information actually used by Msg3 for transmission is punctured by Msg3, msg3 performs puncturing (puncturing) on resources occupied by TBS information, that is, msg3 performs rate matching according to the number of total REs, and discards data symbols of Msg3 corresponding to the RE positions occupied by TBS information. In another example, when TBS information actually used by Msg3 for transmission is received by Msg3 piggyback, msg3 performs rate matching (rate matching) on resources occupied by TBS information, that is, msg3 performs rate matching according to the number of total REs, excluding the number of remaining REs of the number of REs occupied by TBS information.

In the above embodiment, when the Msg3 repeatedly transmits, the number of repetitions corresponding to the plurality of TBSs provided by the base station for the Msg3 is different, the number of repetitions indicated by the base station in the RAR grant corresponds to the maximum TBS value, and the number of repetitions of other TBS values may be deduced from the number of repetitions corresponding to the maximum TBS value, where the number of repetitions actually used by the Msg3 corresponds to the TBS value actually used.

In one example, the number of repetitions of TBS information is by default the same as the number of repetitions of the actual transmission of Msg3, without signaling indication, i.e. there are some REs for transmission of TBS information within each subframe of Msg 3.

In another example, the number of repetitions of TBS information is default the same as the number of repetitions corresponding to the minimum TBS value of the multiple TBS values provided to Msg3 by the base station, and no signaling is required, and when the TBS actually used by Msg3 is not the minimum TBS value, the number of repetitions of actual transmission of Msg3 is greater than the number of repetitions of TBS information, and then a part of REs are used for transmission of TBS information in a previous subframe of Msg3, but no RE is used for transmission of TBS information in a subsequent subframe of Msg 3.

In yet another example, the number of repetitions of TBS information is independent of the number of repetitions corresponding to the multiple TBS values provided by the base station to Msg3, and signaling is required, e.g., the base station specifically configures the corresponding number of repetitions for each CE level in the system information. The base station should ensure that the number of repetitions of Msg3 should not be less than the number of repetitions of TBS information when scheduling Msg 3.

In the above embodiment, the modulation scheme used for TBS information is the same as that used for Msg3, and is fixed to QPSK modulation, for example.

In yet another embodiment, the eNB provides multiple possible TBSs for Msg3 for the UE to select an appropriate TBS value according to the actual data size, the UE carries TBS information used for the actual transmission of Msg3 through the DMRS of Msg3, and sends the TBS information to the base station together when sending Msg3, so that the eNB may detect the TBS information used for the actual transmission of Msg3 and decode Msg3 based on the TBS value, thereby avoiding blind decoding of multiple TBS hypotheses for Msg3, and the specific steps of this embodiment are shown in fig. 24:

in the first step, the UE sends a PRACH to the eNB requesting EDT.

And a third part, after the UE receives the RAR, selecting one TBS according to the size of the transmitted data volume to send Msg3, carrying the information of the selected TBS by the DMRS of the Msg3, and sending the information and the Msg3 to the base station.

In the above embodiment, the base station provides up to 4 possible TBSs for Msg3 for the UE to select, i.e. the TBS information used by the actual transmission of Msg3 may be indicated by up to 2bits, which may be carried by the DMRS of Msg 3. When the base station provides only one TBS for Msg3, then the TBS information used by Msg3 for the actual transmission need not be transmitted.

In one example, when the base station provides 2-4 possible TBSs for Msg3, the TBS information used by the Msg3 actual transmission is fixedly indicated using 2bits of information. In another example, when the base station provides 3 to 4 possible TBSs for Msg3, TBS information used by Msg3 for actual transmission is indicated using 2bits of information, and when the base station provides 2 possible TBSs for Msg3, TBS information used by Msg3 for actual transmission is indicated using 1bit of information.

In the above embodiment, the TBS information used for the actual transmission of the Msg3 is carried through the DMRS of the Msg3, that is, the TBS information used for the actual transmission of the Msg3 corresponds to different DMRS signals. For example, TBS information used for actual transmission of Msg3 is carried by different cyclic shifts of DMRS, and referring to a generation formula of DMRS signals of section 5.5.1 of the existing standard 3gpp 36.211, TBS information used for actual transmission of Msg3 corresponds to different α values, and corresponding DMRS signals are generated based on the same base sequence and different α values.

Example thirteen

In one embodiment, the eNB provides multiple possible TBSs for Msg3 for the UE to select an appropriate TBS value according to the actual data size, the UE sends the selected TBS information and Msg3 to the base station together, the eNB may not decode Msg3 successfully, but may detect the TBS value used by the Msg3 for actual transmission, when the eNB schedules Msg3 retransmission, the eNB may allocate resources based on only the TBS value, and when the TBS value is smaller than the TBS value indicated in RARgrant (the TBS value that is the largest of the multiple TBSs provided by Msg 3), the retransmission of Msg3 may save more resources than the initial transmission, and the eNB does not need to perform blind decoding of multiple TBS hypotheses for retransmission of Msg3, which is shown in fig. 25 in the specific steps of this embodiment:

In the first step, the UE sends a PRACH to the eNB requesting EDT.

And thirdly, after receiving the RAR, the UE selects one TBS to send Msg3 according to the size of the transmitted data volume, and sends the selected TBS information to the base station.

Fourth, the eNB receives the TBS information and decodes the Msg3 according to the TBS information. When the eNB decodes the Msg3 unsuccessfully, the eNB schedules retransmission of the Msg3, if the eNB decodes the TBS information successfully, the retransmission of the Msg3 is scheduled according to the TBS value obtained by decoding, otherwise, the retransmission is the same as the scheduling of the primary transmission of the Msg3, and a plurality of possible TBSs are provided for the Msg3 for UE to select.

Fifth, the UE transmits retransmission of Msg3, and the TBS value used is the same as that used for initial transmission of Msg 3.

In this embodiment, the eNB provides multiple possible TBSs for Msg3 for the UE to select an appropriate TBS value according to the actual data size, the UE sends TBS information used by Msg3 for actual transmission to the eNB, the eNB decides whether to provide one TBS or multiple possible TBSs for Msg3 retransmission depending on whether TBS information is successfully detected, only the detected TBS value is provided for Msg3 retransmission if TBS information is successfully detected by the eNB, and multiple possible TBS values are provided for Msg3 retransmission if TBS information is not successfully detected by the eNB, which should be the same as the multiple possible TBS values provided for Msg3 initial transmission.

In order to support the above function, the DCI for scheduling Msg3 retransmission includes a 1-bit flag for indicating whether one TBS or a plurality of possible TBSs, for example, when the flag is indicated as '0', it indicates that the eNB provides only one TBS for Msg3 retransmission, where the TBS value indicated in the DCI is the TBS, and the number of repetitions indicated in the DCI is the number of repetitions of the TBS; when the flag indicates '1', it indicates that the eNB provides multiple possible TBSs for Msg3 retransmission, the TBS value indicated in the DCI is the largest TBS value among the multiple possible TBS values, according to the largest TBS value and a predefined table (the table defines multiple possible TBSs for each largest TBS value of Msg3 broadcasted by the system information), other possible TBS values may be implicitly obtained, the repetition number indicated in the DCI is the repetition number corresponding to the largest TBS value, and according to the repetition number and the predefined rule, the repetition number of other TBS values may be implicitly obtained.

In one example, the 1-bit flag may borrow some indication fields in the existing DCI format, so that it may be ensured that DCI for scheduling Msg3 retransmission may reuse the format and size of DCI for scheduling other PUSCH, so as to reduce complexity of DCI design. For example, the 1-bit flag is borrowed by 1 bit of the MCS field in the existing DCI format, and for eMTC UE, when DCI format 6-0A/6-0B is used to schedule Msg3 retransmission, 3 bits in the existing 4-bit MCS field are used as MCS indication, and another 1 bit is used as the flag.

In another embodiment, the eNB provides multiple possible TBSs for Msg3 for the UE to select an appropriate TBS according to the actual data size, the UE sends TBS information used for the actual transmission of Msg3 to the eNB, and the eNB only provides one TBS value for Msg3 retransmission, regardless of whether the eNB successfully detects the TBS information. Here, when the UE reports TBS information used for the actual transmission of Msg3, the reliability of the transmission is higher than Msg3, for example, the error probability reaches 1e-3 or lower. In this embodiment, the TBS value indicated by the DCI for scheduling the Msg3 retransmission is the TBS value used for the actual transmission of the Msg3 retransmission, the repetition number indicated by the DCI for scheduling the Msg3 retransmission is the repetition number used for the actual transmission of the Msg3 retransmission, and the DCI for scheduling the Msg3 retransmission is not different from the DCI for scheduling other PUSCHs in interpretation. Here, the eNB should ensure that the TBS value indicated by the DCI scheduling the Msg3 retransmission is the same as the TBS value used by the UE for the actual transmission at the Msg3 initial transmission, possibly different from the TBS value indicated by the RAR grant scheduling the Msg3 initial transmission, which is the largest one of the possible TBS values.

In yet another embodiment, the eNB provides multiple possible TBSs for Msg3 for the UE to select an appropriate TBS according to the actual data size, and the UE does not need to send TBS information used by Msg3 for actual transmission to the eNB, and then the eNB still provides multiple possible TBSs when scheduling Msg3 retransmissions, which are the same as the multiple possible TBSs provided for Msg3 initial transmissions. In this embodiment, the TBS indicated by the DCI for scheduling the Msg3 retransmission is the largest TBS among the possible TBS, and according to the largest TBS value and a predefined table (the table defines a plurality of possible TBSs corresponding to each largest TBS value of the Msg3 broadcasted by the system information), other possible TBS values may be implicitly obtained, and the repetition number indicated by the DCI for scheduling the Msg3 retransmission is the repetition number corresponding to the largest TBS value, and according to the repetition number and the predefined rule, the repetition number of other TBS values may be implicitly obtained. Here, the eNB should ensure that the TBS value indicated by the DCI scheduling the Msg3 retransmission is the same as the TBS value indicated by the RAR grant scheduling the Msg3 initial transmission, and is the one TBS with the largest of the possible TBSs.

Based on the embodiments provided in the present invention described above, as shown in fig. 26, an example wireless communication system 100 according to an embodiment of the present invention is shown, in which a UE detects indication information. The wireless communication system 100 includes one or more fixed infrastructure elements forming a network distributed over a geographic area. The base unit may also be referred to as an Access Point (AP), an Access Terminal (AT), a base station BS (Base Station), a Node-B (Node-B), and an evolved NodeB (eNB), a next generation base station (gNB), or other terminology used in the art. The access point in embodiments of the present invention may be replaced with any of the terms described above. As shown in fig. 22, one or more base stations 101 and 102 serve several mobile stations MS (Mobile Station) or UEs or terminal devices or users 103 and 104 in a service area, e.g., a service area within a cell or cell sector. In some systems, one or more BSs are communicatively coupled (coupled to) to a controller forming an access network, the controller being communicatively coupled to one or more core networks. The disclosed examples are not limited to any one particular wireless communication system.

Base stations 101 and 102 transmit Downlink (DL) communication signals 112 and 113 to UEs 103 and 104, respectively, in the time and/or frequency domain. UEs 103 and 104 communicate with one or more base units 101 and 102 via Uplink (UL) communication signals 111 and 114, respectively. In one embodiment, the mobile communication system 100 is an orthogonal frequency division multiplexing (Orthogonal Frequency DivisionMultiplexing, OFDM)/orthogonal frequency division multiplexing multiple access (Orthogonal Frequency Division MultipleAccess, OFDMA) system including a plurality of base stations including base station 101, base station 102, and a plurality of UEs including UE103 and UE104. Base station 101 communicates with UE103 via uplink communication signals 111 and downlink communication signals 112. When a base station has downlink packets to send to UEs, each UE obtains a downlink allocation (resource), such as a set of radio resources in the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) or the narrowband downlink shared channel NPDSCH (narrowbandPhysical Downlink Shared Channel, NPDSCH). When the user equipment needs to send a packet in uplink to the base station, the UE obtains an grant from the base station, wherein the grant allocation contains a physical downlink uplink shared channel (Physical Uplink Shared Channel, PUSCH) or a narrowband uplink shared channel NPUSCH of a set of uplink radio resources. The UE obtains downlink or uplink scheduling information from a PDCCH (Physical Downlink Control Channel ), or MPDCCH, or EPDCCH or NPDCCH, specific to itself. Downlink or uplink scheduling information and other control information carried by the downlink control channel are referred to as downlink control information (Downlink Control Information, DCI). Fig. 22 also shows different physical channels for the downlink 112 and uplink 111 examples. The downlink 112 includes a PDCCH or EPDCCH or NPDCCH or MPDCCH 121, a PDSCH or NPDSCH 122, a physical control format indicator channel (Physical Control Formation IndicatorChannel, PCFICH) 123, a physical multicast channel (Physical Multicast Channel, PMCH) 124, a physical broadcast channel (Physical Broadcast Channel, PBCH) or narrowband physical broadcast channel NPBCH125, a physical hybrid automatic repeat request indicator channel (Physical Hybrid Automatic Repeat Request Indicator Channel, PHICH) 126 and a primary synchronization signal (Primary Synchronization Signal, PSS), a secondary synchronization signal (Secondary Synchronization Signal, SSS), or a narrowband primary/secondary synchronization signal NPSS/NSSS 12x. The downlink control channel 121 transmits a downlink control signal to a user. DCI120 is carried over downlink control channel 121. PDSCH122 transmits data information to UEs. PCFICH123 transmits information for decoding PDCCH, such as a number of symbols dynamically indicating the number of symbols used by PDCCH 121. PMCH124 carries broadcast multicast information. The PBCH or NPBCH125 carries a master information block (Master Information Block, MIB) for UE early discovery and cell-wide coverage. The PHICH carries hybrid automatic repeat request HARQ information indicating whether the base station correctly receives the transmission signal thereon. The uplink 111 includes a physical uplink control channel (Physical Uplink Control Channel, PUCCH) 131, a PUSCH 132, and a physical random access channel (Physical Random Access Channel, PRACH) 133 carrying random access information.

In one embodiment, wireless communication network 100 uses an OFDMA or multicarrier architecture, including adaptive modulation and coding (Adaptive Modulation and Coding, AMC) on the downlink and a next generation single carrier FDMA architecture or multicarrier OFDMA architecture for UL transmissions. FDMA-based single carrier architectures include Interleaved Frequency Division Multiple Access (IFDMA), localized FDMA (LFDMA), IFDMA, or extended discrete fourier transform orthogonal frequency division multiplexing (DFT-spread OFDM, DFT-SOFDM) of LFDMA. In addition, various enhanced Non-interleaved multiple access NOMA architectures of an OFDMA system are included, such as PDMA (Pattern division multiple access), SCMA (Sparse code multiple access, MUSA (Multi-user shared access), LCRSFDS (Low code rate spreadingFrequency domain spreading), NCMA (Non-orthogonal coded multiple access), RSMA (Resource spreading multiple access), IGMA (Interface-grid multiple access), LDS-SVE (Low density spreading with signature vector extension), LSSA (Low code rate and signature based shared access), NOCA (Non-orthogonal coded access), IDMA (Interleave division multiple access), RDMA (Repetition division multiple access), GOCA (Group orthogonal coded access), WSMA (Welch-bound equality based spread MA), and the like.

In an OFDMA system, a remote unit is served by allocating downlink or uplink radio resources, which typically contain a set of subcarriers over one or more OFDM symbols. Example OFDMA protocols include the LTE and IEEE 802.16 standards of the evolution of the 3GPP UMTS standard. The architecture may also include the use of transmission techniques such as multi-carrier CDMA (MC-CDMA), multi-carrier direct sequence code division multiple access (multi-carrier direct sequence CDMA, MC-DS-CDMA), orthogonal frequency code division multiplexing (Orthogonal Frequency and Code Division Multiplexing, OFCDM) for one-or two-dimensional transmission. Alternatively, it may be based on simpler time and/or frequency division multiplexing/multiple access techniques, or a combination of these different techniques. In an alternative embodiment, the communication system may use other cellular communication system protocols including, but not limited to, TDMA or direct sequence CDMA.

An embodiment of the present invention provides a base station, as shown in fig. 27, including: an allocation module 2301, a transmission module 2302, wherein,

an allocation module 2301 is configured to allocate bandwidth portion BWP resources and physical resource block PRB resources within BWP for the user equipment UE.

A transmitting module 2302, configured to send BWP resource indication information and PRB resource indication information in BWP to the UE.

Wherein the BWP resource indication information is used to indicate BWP resources allocated by the base station for the UE, and the intra-BWP PRB resource indication information is used to indicate intra-BWP PRB resources allocated by the base station for the UE.

Compared with the prior art, the base station allocates bandwidth part BWP resources and physical resource block PRB resources in BWP for user equipment UE, then the base station sends BWP resource indication information and BWP resource indication information in BWP to the UE, the BWP resource indication information is used for indicating the BWP resources allocated for the UE by the base station, then the UE receives the BWP resource indication information and the BWP resource indication information sent by the base station, and then the UE determines the BWP resources allocated for the base station and the PRB resources in the BWP according to the BWP resource indication information and the BWP resource indication information so as to carry out uplink transmission. I.e. a new uplink resource allocation method is designed to be suitable for use in the form of BWP-based bandwidth partitioning for future wireless communication systems.

The base station provided by the embodiment of the present invention is applicable to the above method embodiment, and is not described herein.

The embodiment of the invention provides a UE, as shown in FIG. 28, comprising: a receiving module 2401, a transmitting module 2402, wherein,

a receiving module 2401, configured to receive BWP resource indication information and intra-BWP PRB resource indication information sent by the base station.

A sending module 2402, configured to determine BWP resources allocated to the base station by using the BWP resource indication information and the PRB resource indication information in BWP received by the receiving module 1501, and perform uplink transmission.

Compared with the prior art, the embodiment of the invention allocates bandwidth part BWP resources and physical resource block PRB resources in BWP for user equipment UE, then the base station sends BWP resource indication information and BWP internal PRB resource indication information to the UE, the BWP resource indication information is used for indicating the BWP resources allocated for the UE by the base station, the BWP internal PRB resource indication information is used for indicating the BWP internal PRB resources allocated for the UE by the base station, then the UE receives the BWP resource indication information and the BWP internal PRB resource indication information sent by the base station, and then the UE determines the BWP resources allocated for the base station and the PRB resources in the BWP according to the BWP resource indication information and the BWP internal PRB resource indication information so as to carry out uplink transmission. I.e. a new uplink resource allocation method is designed to be suitable for use in the form of BWP-based bandwidth partitioning for future wireless communication systems.

The user equipment provided by the embodiment of the present invention is applicable to the above method embodiment, and is not described herein.

The embodiment of the invention provides a base station, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, and is characterized in that the processor executes the method for allocating uplink resources executed by the base station.

The embodiment of the invention provides a UE, which comprises: comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor performs a method of uplink transmission performed by a UE.

The user equipment provided by the embodiment of the present application is applicable to the above method embodiment, and is not described herein.

Those skilled in the art will appreciate that the present application includes apparatuses related to performing one or more of the operations described herein. These devices may be specially designed and constructed for the required purposes, or may comprise known devices in general purpose computers. These devices have computer programs stored therein that are selectively activated or reconfigured. Such a computer program may be stored in a device (e.g., a computer) readable medium or any type of medium suitable for storing electronic instructions and respectively coupled to a bus, including, but not limited to, any type of disk (including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks), ROMs (Read-Only memories), RAMs (Random Access Memory, random access memories), EPROMs (Erasable Programmable Read-Only memories), EEPROMs (Electrically Erasable Programmable Read-Only memories), flash memories, magnetic cards, or optical cards. That is, a readable medium includes any medium that stores or transmits information in a form readable by a device (e.g., a computer).

It will be understood by those within the art that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. Those skilled in the art will appreciate that the computer program instructions can be implemented in a processor of a general purpose computer, special purpose computer, or other programmable data processing method, such that the blocks of the block diagrams and/or flowchart illustration are implemented by the processor of the computer or other programmable data processing method.

Those of skill in the art will appreciate that the various operations, methods, steps in the flow, acts, schemes, and alternatives discussed in the present invention may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed herein may be alternated, altered, rearranged, disassembled, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present invention may also be alternated, altered, rearranged, decomposed, combined, or deleted.

The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. A method performed by a base station in a wireless communication system, comprising:

sending BWP resource indication information and PRB resource indication information in BWP to the UE through uplink authorization information;

receiving an uplink signal based on the BWP resource indication information and the PRB resource indication information in the BWP;

wherein the BWP resource indication information is used for indicating BWP resources allocated by the base station for the UE, and the intra-BWP PRB resource indication information is used for indicating intra-BWP PRB resources allocated by the base station for the UE;

wherein the BWP resource indication information and the BWP-inner PRB resource indication information are arranged adjacent to each other, the BWP resource indication information is an index value of BWP, the BWP-inner PRB resource indication information indicates an index value RIV through a resource block, and/or bit map information indicates an inner PRB resource allocated by the base station for the UE;

the uplink authorization information comprises frequency hopping indication information.

2. The method according to claim 1, wherein the BWP resource indication information indicates BWP resources allocated by the base station for the UE by at least one of:

a first index value, wherein the first index value is an index value of the BWP;

and a second index value, wherein the second index value is an index value corresponding to a frequency difference value between the frequency position of the BWP and a frequency position of a preset BWP, and the frequency position includes: a start frequency position or a center frequency position;

a third index value and a fourth index value, the third index value being an index value of BWP allocated by the base station on a first time unit for the UE, the fourth index value being an index value of BWP allocated by the base station on a second time unit for the UE, the time units comprising: any one of a symbol, a slot, a mini slot, and a subframe;

a fifth index value corresponding to a difference between a frequency position of BWP for uplink transmission and a frequency position of preset BWP allocated by the UE on a first time unit, and a sixth index value corresponding to a difference between a frequency position of BWP for uplink transmission and a frequency position of preset BWP allocated by the UE on a second time unit.

3. The method according to claim 1, wherein the BWP-within-physical resource block, PRB, resource indication information indicates the BWP-within-PRB resources allocated by the base station for the UE by at least one of:

the resource block indicates the index value RIV;

the base station allocates the number of segments of the multi-segment continuous uplink PRB resource to the UE and respectively corresponds to RIV values of the segments;

bit map information, wherein PRB resource indication information in BWP is in units of resource block groups RBGs;

the base station allocates at least one of the number of sections of multi-section continuous RBG resources, the initial position information of each section of RBG and the length information of each section of RBG to the UE;

the base station allocates at least one of the number of segments of multiple continuous PRB resources, the initial position information of each segment of PRB and the length information of each segment of PRB to the UE;

wherein, the starting position information of each RBG is used for indicating at least one of the following:

starting positions of RBG resources of each section;

wherein, the length information of each section of RBG is used for indicating at least one of the following:

the length of each section of RBG resource;

wherein, the starting position information of each segment of PRB is used to indicate at least one of the following:

starting positions of PRB resources of each segment;

the length of each PRB resource;

4. The method of claim 1, further comprising at least one of:

if the BWP resource indication information does not have the frequency hopping indication information, determining BWP resources allocated by the base station based on the BWP resource indication information in the uplink authorization information;

If the BWP resource indication information does not have the frequency hopping indication information, determining BWP for uplink transmission of the first time unit and the second time unit respectively based on the BWP resource indication information in the BWP inter-hopping resource allocation information and the BWP source indication information in the inter-PRB resource indication information in the BWP;

if the BWP resource indication information includes BWP inter-hop resource allocation information, determining BWP for uplink transmission of the first time unit and the second time unit, respectively, based on the BWP inter-hop resource allocation information and the non-hop resource allocation information in the BWP resource indication information;

if the BWP resource indication information includes both the inter-BWP hopping resource allocation information and inter-PRB hopping resource allocation information in the BWP, determining the BWP for uplink transmission in the first time unit and the second time unit, respectively, based on the inter-BWP hopping resource allocation information and the non-hopping resource allocation information in the BWP resource indication information.

5. The method of claim 1, further comprising at least one of:

if the PRB resource indication information in BWP does not contain the frequency hopping indication information, determining PRB resources in BWP allocated by the base station based on the PRB resource indication information in BWP;

If the PRB resource indication information in BWP does not include the frequency hopping indication information, determining PRB resources in BWP for uplink transmission in the first time unit and the second time unit based on frequency hopping resource allocation information between PRBs in BWP in the BWP resource indication information and the PRB resource indication information in BWP;

if the BWP-inner PRB resource indication information includes the hopping resource allocation information between the BWP-inner PRBs, determining PRB resources in the BWP for uplink transmission in the first time unit and the second time unit, respectively, based on the hopping resource allocation information between the BWP-inner PRBs and the non-hopping resource in the BWP-inner PRB resource indication information;

if the intra-BWP PRB resource indicator information includes both inter-BWP PRB hopping resource allocation information and inter-BWP hopping resource allocation information, the PRB resources in the BWP for uplink transmission in the first time unit and the second time unit are determined based on the inter-BWP hopping resource allocation information and the non-hopping resource allocation information in the intra-BWP PRB resource indicator information.

6. The method as recited in claim 1, further comprising:

configuring frequency domain location information of a downlink BWP through a physical broadcast channel, and transmitting remaining system information to the UE based on the downlink BWP; and/or the number of the groups of groups,

And configuring frequency domain position information of the uplink BWP and/or index numbers of the uplink BWP through the residual system information.

7. The method according to claim 1, wherein the BWP resource indication information or the intra-BWP PRB resource indication information is located at the most significant bit MSB in an uplink UL grant.

8. A method performed by a user equipment, UE, in a wireless communication system, comprising:

receiving BWP resource indication information and intra-BWP PRB resource indication information from the base station through the uplink grant information;

transmitting an uplink signal according to the resource indication information of the BWP and the PRB resource indication information in the BWP;

wherein the BWP resource indication information and the BWP-inner PRB resource indication information are arranged adjacent to each other, the BWP resource indication information is an index value, the BWP-inner PRB resource indication information indicates an index value RIV through a resource block, and/or bit map information indicates an inner PRB resource allocated by the base station for the UE;

9. The method of claim 8, further comprising at least one of:

if the BWP resource indication information does not have the frequency hopping indication information, determining BWP resources allocated by a base station based on the BWP resource indication information in the uplink authorization information;

10. The method of claim 8, further comprising at least one of:

11. The method of claim 8, wherein the method further comprises:

if the uplink authorization information does not contain the frequency hopping indication information, determining PRB resources which are allocated in the uplink BWP and used for uplink transmission based on PRB resource indication information in the BWP obtained in the uplink authorization information;

if the uplink grant information includes the frequency hopping indication information, determining PRB resources for uplink transmission allocated in the uplink BWP of the first time unit and the second time unit based on frequency hopping resource allocation information between PRBs in the BWP resource indication information and a portion of non-frequency hopping resource allocation information in the PRB resource indication information in the BWP.

12. The method of claim 8, wherein the method further comprises:

acquiring frequency domain position information of downlink BWP through a physical broadcast channel;

receiving the rest system information sent by the base station based on the downlink bandwidth part BWP; and/or the number of the groups of groups,

and acquiring frequency domain position information of at least one available uplink BWP and/or index numbers of the uplink BWP through the residual system information.

13. The method of claim 12, wherein the frequency domain location information of each available upstream BWP comprises: at least one of a center frequency position of each BWP, a start frequency position of each BWP, a frequency position difference value, and a bandwidth of the BWP, the frequency position difference value being a position difference value between the center frequency position of the BWP and a center frequency position of a preset BWP or a position difference value between the start frequency position of the BWP and a start frequency position of the preset BWP;

Also included is at least one of:

determining at least one of an index value of an uplink BWP allocated by a base station and an index value corresponding to a frequency position difference value according to the BWP resource indication information carried in the uplink grant information, and determining at least one of a center frequency position, a starting frequency position and a bandwidth of the BWP allocated by the base station for uplink transmission according to at least one of the determined index value of the uplink BWP allocated by the base station and the index value corresponding to the frequency position difference value and the acquired resource information of a plurality of available uplink BWP;

determining indexes corresponding to two uplink BWP respectively according to the BWP resource indication information carried in the uplink grant information, and determining at least one of a BWP center frequency position, a starting frequency position and a bandwidth for uplink transmission respectively on a first time unit and a second time unit according to at least one of the indexes corresponding to the determined two uplink BWP respectively, the index value corresponding to the frequency position difference value, and the acquired resource information of a plurality of available uplink BWP;

determining PRB resources in BWP allocated by the base station through a resource indication value RIV;

Determining PRB resources in BWP allocated by the base station according to the number of segments of the multi-segment continuous uplink PRB resources allocated by the base station for the UE and RIVs respectively corresponding to the segments;

determining PRB resources within BWP allocated by the base station through bit map information, wherein PRB resource indication information within BWP is in RBG units;

determining PRB resources in BWP allocated by the base station through RBG set indication information and bit map information, wherein the PRB resource indication information in BWP takes RBG set as a unit;

determining PRB resources in BWP allocated by the base station through RBG aggregate resource allocation information and bit group information, wherein PRB resource indication information in BWP takes PRB as a unit;

determining PRB resources in BWP allocated by the base station through at least one of the number of sections of multi-section continuous RBG resources allocated by the base station for the UE, starting position information of each section of RBG and length information of each section of RBG;

the PRB resources within the BWP allocated by the base station are determined by at least one of the number of segments of the multi-segment contiguous PRB resources allocated by the base station to the UE, starting position information of each segment of PRB, and length information of each segment of PRB.

14. The method according to claim 8, wherein the BWP resource indication information or the intra-BWP PRB resource indication information is located at a most significant bit MSB in an uplink UL grant.

15. A base station in a wireless communication system, comprising:

a processor;

a memory for storing a computer program, wherein the computer program is executed by the processor to implement the method of any one of claims 1 to 7.

16. A UE in a wireless communication system, comprising:

a processor;

a memory for storing a computer program, wherein the computer program is executed by the processor to implement the method of any one of claims 8 to 14.

17. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any one of claims 1 to 7.

18. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any of claims 8 to 14.