CN113676921A

CN113676921A - Determination method of PUSCH transmission parameters and communication equipment

Info

Publication number: CN113676921A
Application number: CN202010403912.9A
Authority: CN
Inventors: 王勇; 顾一
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-11-19
Anticipated expiration: 2040-05-13
Also published as: CN113676921B

Abstract

The embodiment of the invention provides a method for determining a PUSCH transmission parameter and communication equipment, wherein the method for determining the PUSCH transmission parameter comprises the following steps: for a current PUSCH repeated transmission in the plurality of PUSCH repeated transmissions, determining a transmission parameter of the current PUSCH repeated transmission according to a transmission resource of the PUSCH repeated transmission, wherein the transmission parameter comprises at least one of the following: RV; the RV starting position; and a PUSCH mapping mode. In the embodiment of the invention, the method for determining the RV, the RV initial position and/or the PUSCH mapping mode is provided for the Actual repetition transmission in the repeated transmission of a plurality of PUSCHs, the problem that the Actual effective code rate is higher or part of system bits cannot be transmitted in the Actual repetition transmission can be solved, the probability of correct decoding of a receiving end is improved, and the system performance is improved.

Description

Determination method of PUSCH transmission parameters and communication equipment

Technical Field

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method for determining PUSCH transmission parameters and communication equipment.

Background

A Physical Uplink Shared Channel (PUSCH) repetition (repetition) type b (type b) employs multiple Nominal repetitions (Nominal repetitions) for transmission of the PUSCH.

The Nominal priorities may be further segmented to form a series of Actual repetitions (actions), which are repeated transmissions for a single Transport Block (TB) or Hybrid Automatic Repeat reQuest (HARQ) process scheduled by Downlink Control Information (DCI).

However, if the Actual available resources of the Actual retransmission are less, the Actual equivalent transmission rate is higher, or some systematic bits (systematic bits) cannot be transmitted, especially for the case that some systematic bits cannot be transmitted, the probability of decoding failure at the receiving end is increased, which leads to performance degradation, thereby affecting the coverage performance.

Disclosure of Invention

The embodiment of the invention provides a method for determining a PUSCH transmission parameter and communication equipment, which are used for solving the problems that because Nominal repetition is segmented, Actual available resources of Actual repetition are less, Actual equivalent transmission code rate is higher or certain system bits cannot be transmitted.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for determining a PUSCH transmission parameter, including:

for a current PUSCH repeated transmission in a plurality of PUSCH repeated transmissions, determining a transmission parameter of the current PUSCH repeated transmission according to a transmission resource of the PUSCH repeated transmission, the transmission parameter comprising at least one of:

RV；

the RV starting position;

and a PUSCH mapping mode.

In a second aspect, an embodiment of the present invention provides a communication device, including:

a determining module, configured to determine, for a current PUSCH repeated transmission among a plurality of PUSCH repeated transmissions, a transmission parameter of the current PUSCH repeated transmission according to a transmission resource of the PUSCH repeated transmission, where the transmission parameter includes at least one of:

RV；

the RV starting position;

and a PUSCH mapping mode.

Optionally, the determining module is configured to, if the transmission resources of the current PUSCH repeated transmission and the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission both satisfy a first condition, continue to use the RV used by the previous PUSCH repeated transmission in the current PUSCH repeated transmission.

Optionally, the determining module is configured to, if at least one of the transmission resources of the current PUSCH repeated transmission and the transmission resource of the previous PUSCH repeated transmission does not satisfy the first condition, use, by the current PUSCH repeated transmission, a next RV in an RV sequence of the RV of the previous PUSCH repeated transmission.

Optionally, the determining module is configured to, if the transmission resources of the current PUSCH repeated transmission and the consecutive N times of PUSCH repeated transmission before the current PUSCH repeated transmission both satisfy a first condition, add N × offset to an initial RV initial position of the current PUSCH repeated transmission, where N is an integer greater than or equal to 1, and the offset is an offset value.

Optionally, the determining module is configured to determine that the RV starting position of the current PUSCH repeated transmission is equal to the initial RV starting position if the current PUSCH repeated transmission does not meet the first condition, or there are no consecutive N PUSCH repeated transmissions meeting the first condition before the current PUSCH repeated transmission.

Optionally, the determining module is configured to determine the initial RV starting position according to the RV and an RV starting position table of the current PUSCH repeated transmission; the RV starting position table comprises starting positions corresponding to a plurality of RVs, and the RV starting position table is specified by RRC configuration or a protocol.

Optionally, the value of the offset is determined by one of the following methods:

when x is {0,1,2}, offset is (S)₂-S₁) Y is an integer of 2 or more, S₁Is the initial RV starting position when RV is x, S₂The value of the offset when x is 3 is the initial RV starting position when RV is mod (x +1, 4) and the value of the offset when RV is 0;

by RRC configuration or protocol provisioning or network side dynamic indication.

Alternatively, Y is 2, or alternatively, Y is N + 1.

Optionally, the determining module is configured to, if the transmission resource of the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission meets a first condition, determine a mapping manner of the current PUSCH repeated transmission as follows: and continuing to map the symbols which are not transmitted in the previous PUSCH repeated transmission.

Optionally, the determining module is configured to start mapping from a first symbol mapped by the previous PUSCH repeated transmission if the resource available for the current PUSCH repeated transmission is greater than the resource required by the symbol not transmitted by the previous PUSCH repeated transmission.

Optionally, the determining module is configured to determine, according to an RRC configuration or a mode specified by a protocol, a mapping mode of the current PUSCH repeated transmission if the transmission resource of the previous PUSCH repeated transmission does not meet the first condition.

Optionally, the first condition includes at least one of:

the actual effective transmission code rate is higher than or equal to the target code rate;

the actual available transmission resources are lower than or equal to the target resources;

the systematic bits corresponding to the currently used RV are completely transmitted or the systematic bits which are completely transmitted are higher than a specified proportion.

Optionally, the target code rate is determined by at least one of:

m times of code rate corresponding to MCS level configured or dynamically indicated by RRC, wherein M is greater than or equal to 1;

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, M ═ 1,3/2,4/3, 5/4.

Optionally, the target resource is determined by at least one of:

the time domain allocation length or the transmission duration time of the RRC configuration or the network side dynamic indication is N times, and N is less than or equal to 1;

p times of the number of the available resource units determined according to the RRC configuration or the network side dynamic indication, wherein P is less than or equal to 1;

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, N is 1, or N is a/b, a < b, and a,/b are integers between 1 and 14.

Optionally, P ═ 1,2/3,3/4, 2/5.

In a third aspect, an embodiment of the present invention provides a communication device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the method for determining a PUSCH transmission parameter in the first aspect.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the determination method for PUSCH transmission parameters in the first aspect.

In the embodiment of the invention, for Actual retransmission transmission of the PUSCH retransmission Type B, because the transmission resource (Actual transmission resource) of PUSCH repeated transmission is considered when determining the RV, the RV initial position and/or the PUSCH mapping mode, the problem that the Actual effective code rate is higher or part of system bits cannot be transmitted in the Actual retransmission transmission can be solved, the probability of correct decoding of a receiving end is improved, and the system performance is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a block diagram of a wireless communication system according to an embodiment of the present invention;

FIG. 2 is a schematic view of an RV;

FIGS. 3 and 4 are schematic diagrams of a transmission scenario in which the Actual availability of Actual retransmission is low;

fig. 5 is a flowchart illustrating a method for determining PUSCH transmission parameters according to an embodiment of the present invention;

fig. 6a to fig. 6g are schematic diagrams illustrating a method for determining PUSCH transmission parameters according to a first embodiment of the present invention;

fig. 7 and fig. 8 are schematic diagrams of a determination method of PUSCH transmission parameters according to a second embodiment of the present invention;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a communication device according to another embodiment of the present invention;

fig. 11 is a schematic structural diagram of a communication device according to another embodiment of the present invention.

Detailed Description

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Embodiments of the present invention are described below with reference to the accompanying drawings. The method for determining the PUSCH transmission parameter and the communication equipment provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may adopt a 5G system, or an Evolved Long Term Evolution (lte) system, or a subsequent Evolved communication system.

Referring to fig. 1, an architecture diagram of a wireless communication system according to an embodiment of the present invention is shown. As shown in fig. 1, the wireless communication system may include: a network side device 11 and a terminal 12, wherein the terminal 12 can be connected with the network side device 11. In practical applications, the connections between the above devices may be wireless connections, and fig. 1 illustrates the connections between the devices by solid lines for convenience and convenience in visual representation.

It should be noted that the communication system may include a plurality of terminals 12, and the network side device 11 may communicate (transmit signaling or transmit data) with the plurality of terminals 12.

The network side device 11 provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node base station (eNB), or a network side device in a 5G system (for example, a next generation base station (gNB), a Transmission and Reception Point (TRP), or a cell) and the like. Or a network side device in a subsequent evolution communication system.

The terminal 12 provided in the embodiment of the present invention may be a Mobile phone, a tablet Computer, a notebook Computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, a Personal Digital Assistant (PDA), or the like.

The communication device related in the embodiment of the invention can be a terminal or a network side device.

First, communication terms related to embodiments of the present invention will be described below.

(1) PUSCH repetition Type B (PUSCH repeption Type B)

In the PUSCH repetition type B scheme, a single non-Fallback DCI (which may be DCI format 0_1 or DCI format 0_2) may schedule one to many temporally consecutive Nominal repetitions (Nominal repetitions) determined by a row in a time domain resource allocation table configured by a higher layer by indicating an index of the row, where a first Nominal repetition of the Nominal repetitions is determined by a K2 parameter and a Start and Length Indicator Value (slip) in the row, and the remaining Nominal repetitions are arranged next to each other, i.e., where L × K consecutive symbols of time domain resource allocation are determined by the DCI (where L is the number of consecutive symbols occupied by each Nominal repetition and K is the number of time domain consecutive symbols). When a certain non-Fallback DCI format is configured to support PUSCH repetition type B, a column of number repetition parameters is added to a time domain resource allocation table configured independently for the non-Fallback DCI format, and the number repetition parameters of each row in the resource allocation table are configured independently for indicating the number of corresponding negative repetitions of the row.

The temporally consecutive subframes scheduled by the DCI are further segmented, and a series of Actual repetition (Actual repetition) transmissions are formed based on the original boundaries between the subframes and the newly appeared boundaries due to the segmentation, and are all repeated transmissions for a single Transport Block (TB) or Hybrid Automatic Repeat reQuest (HARQ) process scheduled by the DCI:

1) always segmented based on slot boundaries when a certain Nominal repetition crosses a slot boundary;

2) before and after the semi-static downlink symbols (DL symbols) configured at the upper layer, the Nominal repetition is segmented (the semi-static DL symbols in the range of L × K are not occupied by PUSCH);

3) when a dynamic (dynamic) Slot Format Indication (SFI) is configured, a Pattern (Pattern) for Invalid symbols (Invalid symbols) may be further configured for the non-Fallback DCI Format, and the Nominal reptitions is indicated based on 1 bit in the DCI or always segmented before and after the Invalid symbols (when the aforementioned 1 bit does not exist) (Invalid symbols in the L K range are not occupied by PUSCH).

(2) Redundancy Version (Redundant Version, RV)

Referring to fig. 2, fig. 2 is a schematic diagram of an RV, which is designed to implement Incremental Redundancy (IR) HARQ transmission, that is, coded bits (coded bits) generated by an encoder are divided into a plurality of groups, each RV defines a starting position, and different RVs are respectively used for first transmission and HARQ retransmissions to implement gradual accumulation of redundant bits and complete Incremental Redundancy HARQ operation. In fig. 2, RVs include RV0, RV1, RV2 and RV3, RV0 and RV3 contain mainly systematic bits (systematic bits) and are self-decodable.

The starting position of the RV is shown in the following table:

TABLE 1 starting position S (starting position of differential redundancy versions), k₀

The determination method of the RV of the PUSCH repetition Type B is as follows:

the domain repK-RV in the high level parameter configredGrantConfig defines the RV sequence applied to the repetition (actual repetitions);

if configuredGrantConfig does not configure the domain, RV0 is used every Actual repetition. Otherwise, for the nth-th transmission in all the Actual predictions (including omitted ones) corresponding to the defined K Nominal predictions, selecting the (mod (n-1,4) +1) th RV in the sequence for use according to the configured RV sequence. That is, the RV is selected based on Actual repeptions cycling (cycling) through the RV sequence.

For cg (configured grant) PUSCH repetition Type B:

if the field StartingfromRV0 in the higher layer parameter config _ grant _ config is configured to be 'off', the initial transmission of a TB may be the first transmission opportunity (occasion) of Actual retransmissions;

otherwise:

if the RV sequence is {0,2,3,1}, the initial transmission of one TB is the first transmission opportunity of Actual repeptions;

if the RV sequence is {0,3,0,3}, the initial transmission of a TB is the transmission timing of any RV ═ 0 in Actual retransmissions;

if the RV sequence is {0,0,0,0}, the initial transmission of a TB is the transmission timing of any Actual repetition (when K is greater than or equal to 8, except for any Actual repetition within the last Nominal repetition).

As shown in fig. 3, when the 1 st timing retransmission symbol is configured as a downlink symbol due to tdd-UL-DL-Configuration, the first timing retransmission is cancelled/omitted (cancelled/acknowledged), the second timing retransmission is Actual retransmission, the Transport Block Size (TBS, Transport Block Size) is determined based on the symbol length L configured for the first timing retransmission, and is transmitted with redundancy version 0(RV0), and the initial transmission of the Transport Block (TB) is performed with high probability.

However, the Actual available resources of the Actual retransmission are few, so that the Actual equivalent transmission code rate is high, or some systematic bits cannot be transmitted, as shown in fig. 4, especially for the case where some systematic bits cannot be transmitted, the probability of decoding failure at the receiving end is increased, which leads to performance degradation, thereby affecting the coverage performance.

Referring to fig. 5, an embodiment of the present invention provides a method for determining PUSCH transmission parameters, including:

step 51: for a current PUSCH repeated transmission in a plurality of PUSCH repeated transmissions, determining a transmission parameter of the current PUSCH repeated transmission according to a transmission resource of the PUSCH repeated transmission, the transmission parameter comprising at least one of:

RV；

the RV starting position;

and a PUSCH mapping mode.

In this embodiment of the present invention, optionally, after determining the transmission parameter of the current PUSCH repeated transmission according to the transmission resource of the PUSCH repeated transmission, the method further includes: and acquiring the configuration information of the PUSCH repeated transmission.

In this embodiment of the present invention, optionally, after determining the transmission parameter of the current PUSCH repeated transmission according to the transmission resource of the PUSCH repeated transmission, the method further includes: and performing PUSCH repeated transmission according to the transmission parameter of the current PUSCH repeated transmission.

In this embodiment of the present invention, optionally, the transmission resources for PUSCH repeated transmission at least include transmission resources for current PUSCH repeated transmission.

Optionally, the PUSCH repetition transmission may be a nominal retransmission transmission or an actual retransmission transmission.

Optionally, the transmission resource is a time domain resource, or a frequency domain resource, or a time domain resource and a frequency domain resource, and the like.

In the embodiment of the present invention, optionally, whether to perform PUSCH retransmission is configured by the network side.

The following describes in detail the determination methods of RV, RV starting position, and PUSCH mapping method, respectively.

(1) RV determination method

In some embodiments of the present invention, optionally, the determining, according to the transmission resource of the PUSCH repeated transmission, the transmission parameter of the current PUSCH repeated transmission includes:

and if the transmission resources of the current PUSCH repeated transmission and the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission both meet a first condition, the current PUSCH repeated transmission continues to use the RV used by the previous PUSCH repeated transmission.

and if at least one item of the transmission resources of the current PUSCH repeated transmission and the previous PUSCH repeated transmission does not meet the first condition, the current PUSCH repeated transmission uses the next RV of the previous PUSCH repeated transmission in an RV sequence (sequence).

In the embodiment of the invention, the RV is obtained from the RV sequence in a sequential cycling way, as long as the RV used by the PUSCH repeated transmission at the previous time is known, and one RV is taken out from the RV sequence.

The RV sequence may be indicated dynamically or by RRC configuration or protocol conventions. The current protocol gives a total of three RV sequences: {0,2,3,1}, {0,3,0,3}, and {0,0,0,0 }.

In some embodiments of the present invention, optionally, if the current PUSCH repeated transmission is a first Actual repetition transmission of a plurality of PUSCH repeated transmissions, the RV of the current PUSCH repeated transmission is specified by an RRC configuration or protocol.

In the embodiment of the present invention, optionally, the first condition includes at least one of the following:

Optionally, the target code rate is determined by at least one of:

1) m times of code rate corresponding to Modulation and Coding Scheme (MCS) level of RRC configuration or dynamic indication, wherein M is greater than or equal to 1;

2) RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, M ═ 1,3/2,4/3, 5/4.

Optionally, the target resource is determined by at least one of:

1) the time domain allocation length or transmission duration (allocation length/transmission duration) of the RRC configuration or network side dynamic indication is N times, wherein N is less than or equal to 1;

2) p times of the number of available Resource Elements (REs) determined according to RRC configuration or network side dynamic indication, wherein P is less than or equal to 1;

3) RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, N is 1, or N is a/b, a < b, and a,/b are integers between 1 and 14.

Optionally, P ═ 1,2/3,3/4, 2/5.

(2) Method for determining RV starting position

if the transmission resources of the current repeated PUSCH transmission and the N times of repeated PUSCH transmission before the current repeated PUSCH transmission both meet a first condition, the RV starting position of the current repeated PUSCH transmission is equal to the initial RV starting position plus N times of offset, wherein N is an integer greater than or equal to 1, and the offset is an offset value.

The following illustrates the meaning of PUSCH repeated transmission N times in succession. For example, if the first condition is satisfied 5 times before the current PUSCH repetition transmission, but the 1 st, 2 nd and 3 last times are separated by the PUSCH repetition transmission that does not satisfy the first condition, then N of the consecutive N times is 3.

In some embodiments of the present invention, optionally, before determining the transmission parameter of the current PUSCH repeated transmission according to the transmission resource of the PUSCH repeated transmission, the method further includes: determining the initial RV starting position according to the RV repeatedly transmitted by the current PUSCH and an RV starting position table;

the RV starting position table comprises starting positions corresponding to a plurality of RVs, and the RV starting position table is defined by Radio Resource Control (RRC) configuration or a protocol.

1) when x is {0,1,2}, offset is (S)₂-S₁) Y is an integer of 2 or more, S₁Is the initial RV starting position when RV is x, S₂The initial RV starting position when RV ═ mod (x +1, 4), x ═ 3, the value of the offset being the same as the value of the offset when RV ═ 0;

2) by RRC configuration or protocol provisioning or network side dynamic indication.

Alternatively, Y is 2, or alternatively, Y is N + 1.

if the current repeated transmission of the PUSCH does not meet the first condition, or there are no consecutive N times of repeated transmissions of the PUSCH meeting the first condition before the current repeated transmission of the PUSCH, and the RV starting position of the current repeated transmission of the PUSCH is equal to the initial RV starting position, wherein N is an integer greater than or equal to 1.

Optionally, the target code rate is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, M ═ 1,3/2,4/3, 5/4.

Optionally, the target resource is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, N is 1, or N is a/b, a < b, and a,/b are integers between 1 and 14.

Optionally, P ═ 1,2/3,3/4, 2/5.

(3) Method for determining PUSCH mapping mode

In some embodiments of the present invention, optionally, the determining, according to the transmission resource of the PUSCH repeated transmission, the transmission parameter of the current PUSCH repeated transmission includes: if the transmission resource of the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission meets a first condition, the mapping mode of the current PUSCH repeated transmission is as follows: continuing mapping the symbols (symbols) which are not transmitted in the previous PUSCH repeated transmission.

Further optionally, the continuously mapping the symbols that were not transmitted in the previous PUSCH repeated transmission includes: and if the available resources of the current PUSCH repeated transmission are larger than the resources required by the symbols which are not transmitted in the previous PUSCH repeated transmission, starting mapping from the first symbol of the previous PUSCH repeated transmission mapping.

Wherein the symbols are modulation symbols.

In some embodiments of the present invention, optionally, the determining, according to the transmission resource of the PUSCH repeated transmission, the transmission parameter of the current PUSCH repeated transmission includes: and if the transmission resource of the previous PUSCH repeated transmission does not meet the first condition, determining the mapping mode of the current PUSCH repeated transmission according to a mode specified by RRC configuration or a protocol.

Optionally, the target code rate is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, M ═ 1,3/2,4/3, 5/4.

Optionally, the target resource is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, N is 1, or N is a/b, a < b, and a,/b are integers between 1 and 14.

Optionally, P ═ 1,2/3,3/4, 2/5.

Since both RV0 and RV can be decoded by itself, the determination method of PUSCH transmission parameters in the above embodiment is particularly suitable for scenarios where RV is RV0 and RV 3.

The method for determining the PUSCH transmission parameters in the above embodiment is applicable to repeated transmission in two frequency hopping manners of the PUSCH repetition Type B: frequency hopping between repeated transmissions (Inter-repetition), frequency hopping between slots (Inter-slot).

The PUSCH repeated transmission in the above embodiment may be one of the following manners:

1) configured granted transmission (Configured Grant);

2) an uplink grant transmission (UL grant) indicated in the DCI.

The determination method of the PUSCH transmission parameter in the above embodiment may be applied to the terminal side, and may also be applied to the network side.

The following describes the determination method of the PUSCH transmission parameter in conjunction with a specific embodiment.

The first embodiment of the invention:

as shown in fig. 6a to 6g, the time domain resource distribution available for 8 actual retransmission transmissions of retransmission transmissions is given, an LDPC base graph 2 is adopted, the RV sequence configured on the network side is {0,2,3,1}, the RV start position table configured on the network side is as shown in table 1, that is, the start position corresponding to RV0 is 0, and the start position corresponding to RV1 is 0

The starting position corresponding to RV2 is

The starting position corresponding to RV3 is

For example, the first condition at this time is that the actually available time domain symbols (available transmission resources) are smaller than the configured nominal repetition time domain symbol number (target resources).

As shown in fig. 6a, the current PUSCH repeated transmission uses RV0, with RV starting position being 0.

As shown in fig. 6b, the current PUSCH repeated transmission uses RV2, and the RV starting position is

As in fig. 6c, the current PUSCH repetition transmission uses RV2, at which point

Then RV is at the starting position

As shown in fig. 6d, the current PUSCH repeated transmission uses RV3, and the RV starting position is

As shown in fig. 6e, the current PUSCH repeated transmission uses RV1, and the RV starting position is

As shown in fig. 6f, the current PUSCH repeated transmission uses RV0, with RV starting position 0.

As in fig. 6g, the current PUSCH repeated transmission uses RV0, at which point

The RV start position is 0+ offset.

Embodiment two of the present invention:

fig. 7 shows a resource distribution of actual repetition transmission (actual repetition) in the time domain according to an embodiment of the present invention:

for the first actual repetition, determining a corresponding mapping mode according to RRC configuration or protocol specification;

referring to fig. 8, since the time domain resource (available transmission resource) available for the first actual retransmission is smaller than 1/2 (target resource) of the time domain resource required for the nominal retransmission, the second actual retransmission transmission continues to transmit the remaining symbols (symbols); while the third actual retransmission transport does not satisfy the first condition, the mapping of all Transport Blocks (TBs) continues.

In fact, in some cases, Demodulation Reference Signal (DMRS) symbols may not be mapped for the second actual repetition transmission, and then the symbols (modulation symbols) not transmitted by the first actual repetition may be transmitted continuously.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention, where the communication device 90 includes:

a determining module 91, configured to determine, for a current PUSCH repeated transmission among a plurality of PUSCH repeated transmissions, a transmission parameter of the current PUSCH repeated transmission according to a transmission resource of the PUSCH repeated transmission, where the transmission parameter includes at least one of:

RV；

the RV starting position;

and a PUSCH mapping mode.

In this embodiment of the present invention, optionally, the communication device further includes: and the acquisition module is used for acquiring the configuration information of the PUSCH repeated transmission.

In this embodiment of the present invention, optionally, the communication device further includes: and the transmission module is used for carrying out PUSCH repeated transmission according to the transmission parameters of the current PUSCH repeated transmission.

Optionally, the determining module is configured to determine the initial RV starting position according to the RV and an RV starting position table of the current PUSCH repeated transmission;

Alternatively, Y is 2, or alternatively, Y is N + 1.

Wherein the symbols are modulation symbols.

Optionally, the first condition includes at least one of:

Optionally, the target code rate is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, M ═ 1,3/2,4/3, 5/4.

Optionally, the target resource is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

Optionally, N is 1, or N is a/b, a < b, and a,/b are integers between 1 and 14.

Optionally, P ═ 1,2/3,3/4, 2/5.

The terminal provided in the embodiment of the present invention can implement each process implemented by the communication device in the method embodiment of fig. 5, and is not described here again to avoid repetition.

Figure 10 is a schematic diagram of the hardware architecture of a terminal implementing various embodiments of the present invention,

the terminal 100 includes but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 1010, and power source 1011. Those skilled in the art will appreciate that the terminal configuration shown in fig. 1 is not intended to be limiting, and that the terminal may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

Wherein, the processor 1010 is configured to determine, for a current PUSCH repeated transmission in a plurality of PUSCH repeated transmissions, a transmission parameter of the current PUSCH repeated transmission according to a transmission resource of the PUSCH repeated transmission, where the transmission parameter includes at least one of:

RV；

the RV starting position;

and a PUSCH mapping mode.

In the embodiment of the present invention, the first and second substrates,

The terminal provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiment of fig. 5, and is not described here again to avoid repetition.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1010; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 102, such as helping the user send and receive e-mails, browse web pages, access streaming media, and the like.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.

The terminal 100 also includes at least one sensor 105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1010, and receives and executes commands sent by the processor 1010. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 1010 to determine the type of the touch event, and then the processor 1010 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 10, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the terminal, and is not limited herein.

The interface unit 108 is an interface for connecting an external device to the terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 100 or may be used to transmit data between the terminal 100 and the external device.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1010 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the terminal. Processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.

The terminal 100 may also include a power source 1011 (e.g., a battery) for powering the various components, and preferably, the power source 1011 may be logically coupled to the processor 1010 via a power management system that may be configured to manage charging, discharging, and power consumption.

In addition, the terminal 100 includes some functional modules that are not shown, and thus, the detailed description thereof is omitted.

Preferably, an embodiment of the present invention further provides a terminal 130, including a processor 131, a memory 132, and a computer program stored in the memory 132 and capable of running on the processor 131, where the computer program, when executed by the processor 131, implements each process of the foregoing method for reporting a random access report, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

Referring to fig. 11, an embodiment of the present invention further provides a communication device 110, which includes a processor 111, a memory 112, and a computer program stored in the memory 112 and capable of running on the processor 101, where the computer program is executed by the processor 111 to implement the processes of the PUSCH transmission parameter determining method embodiment shown in fig. 5, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the embodiment of the PUSCH transmission parameter determining method shown in fig. 5, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for determining a Physical Uplink Shared Channel (PUSCH) transmission parameter is characterized by comprising the following steps:

a redundancy version RV;

the RV starting position;

and a PUSCH mapping mode.

2. The method of claim 1, wherein the determining the transmission parameters for the current PUSCH repeated transmission according to the transmission resources for the PUSCH repeated transmission comprises:

3. The method of claim 1, wherein the determining the transmission parameters for the current PUSCH repeated transmission according to the transmission resources for the PUSCH repeated transmission comprises:

and if at least one item of transmission resources of the current PUSCH repeated transmission and the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission does not meet a first condition, the current PUSCH repeated transmission uses the next RV of the RV sequence of the previous PUSCH repeated transmission.

4. The method of claim 1, wherein the determining the transmission parameters for the current PUSCH repeated transmission according to the transmission resources for the PUSCH repeated transmission comprises:

5. The method of claim 1, wherein the determining the transmission parameters for the current PUSCH repeated transmission according to the transmission resources for the PUSCH repeated transmission comprises:

if the current PUSCH repeated transmission does not meet a first condition, or continuous N times of PUSCH repeated transmission meeting the first condition does not exist before the current PUSCH repeated transmission, and the RV starting position of the current PUSCH repeated transmission is equal to the initial RV starting position.

6. The method of claim 4 or 5, wherein determining the transmission parameters of the current PUSCH repeated transmission according to the transmission resources of the PUSCH repeated transmission further comprises prior to:

determining the initial RV starting position according to the RV repeatedly transmitted by the current PUSCH and an RV starting position table;

7. The method of claim 4, wherein the value of the offset is determined by one of:

8. The method of claim 7, wherein Y is 2 or Y is N + 1.

9. The method of claim 1, wherein the determining the transmission parameters for the current PUSCH repeated transmission according to the transmission resources for the PUSCH repeated transmission comprises:

if the transmission resource of the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission meets a first condition, the mapping mode of the current PUSCH repeated transmission is as follows: and continuing to map the symbols which are not transmitted in the previous PUSCH repeated transmission.

10. The method of claim 9, wherein the continuing to map the symbols not transmitted for the previous PUSCH repetition transmission comprises:

and if the available resources of the current PUSCH repeated transmission are larger than the resources required by the symbols which are not transmitted in the previous PUSCH repeated transmission, starting mapping from the first symbol of the previous PUSCH repeated transmission mapping.

11. The method of claim 1, wherein the determining the transmission parameters for the current PUSCH repeated transmission according to the transmission resources for the PUSCH repeated transmission comprises:

and if the transmission resource of the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission does not meet the first condition, determining the mapping mode of the current PUSCH repeated transmission according to the mode specified by RRC configuration or protocol.

12. The method of any of claims 2-5, 9, 11, wherein the first condition comprises at least one of:

13. The method of claim 12, wherein the target code rate is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

14. The method of claim 12, wherein the target resource is determined by at least one of:

RRC configuration or protocol provisioning or network side dynamic indication.

15. A communication device, comprising:

a redundancy version RV;

the RV starting position;

and a PUSCH mapping mode.

16. The communication device of claim 15,

the determining module is configured to, if the transmission resources of the current PUSCH repeated transmission and the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission both satisfy a first condition, continue using, by the current PUSCH repeated transmission, the RV used by the previous PUSCH repeated transmission.

17. The communication device of claim 15,

the determining module is configured to, if at least one of the transmission resources of the current PUSCH repeated transmission and the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission does not satisfy a first condition, use, by the current PUSCH repeated transmission, a next RV in an RV sequence of the RV of the previous PUSCH repeated transmission.

18. The communication device of claim 15,

the determining module is configured to, if the transmission resources of the current PUSCH repeated transmission and the consecutive N times of PUSCH repeated transmission before the current PUSCH repeated transmission both satisfy a first condition, add N × offset to an initial RV initial position of the current PUSCH repeated transmission, where N is an integer greater than or equal to 1, and the offset is an offset value.

19. The communication device of claim 15,

the determining module is configured to determine that an RV starting position of the current PUSCH repeated transmission is equal to an initial RV starting position if the current PUSCH repeated transmission does not meet a first condition, or there are no consecutive N PUSCH repeated transmissions meeting the first condition before the current PUSCH repeated transmission.

20. The communication device of claim 15,

the determining module is configured to, if the transmission resource of the previous PUSCH repeated transmission adjacent to the current PUSCH repeated transmission satisfies a first condition, map the current PUSCH repeated transmission in a manner of: and continuing to map the symbols which are not transmitted in the previous PUSCH repeated transmission.

21. The communication device of claim 15,

the determining module is configured to determine a mapping manner of the current PUSCH repeated transmission according to a manner specified by RRC configuration or a protocol if the transmission resource of the current PUSCH repeated transmission adjacent to the previous PUSCH repeated transmission does not satisfy a first condition.

22. The communication device of any of claims 16-21, wherein the first condition comprises at least one of:

23. A communication device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for determination of PUSCH transmission parameters according to any of claims 1 to 14.

24. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for determination of PUSCH transmission parameters according to any one of claims 1 to 15.