CN108242989B

CN108242989B - Data transmission method, data demodulation method, device and terminal

Info

Publication number: CN108242989B
Application number: CN201611225229.0A
Authority: CN
Inventors: 袁志锋; 李卫敏; 鲁照华; 唐红
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-12-27
Filing date: 2016-12-27
Publication date: 2022-07-15
Anticipated expiration: 2036-12-27
Also published as: CN108242989A; WO2018121599A1

Abstract

The invention provides a data transmission method, a data demodulation device and a terminal, which are used for solving the problems of high reliability and high resource overhead in a URLLC scene in the prior art, and comprise the following steps: the base station sends configuration information to the terminal, wherein the configuration information at least comprises: transmitting indication information of time-frequency resources, indication information of a transmission signal generation method, and demodulation-dedicated pilot indication information on the time-frequency resources; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises the following information: the scheme improves the resource utilization rate by the indication information of the demodulation special pilot frequency on the first transmission time frequency resource and the second transmission time frequency resource.

Description

Data transmission method, data demodulation method, device and terminal

Technical Field

The present invention relates to the field of communications, and in particular, to a data transmission method, a data demodulation method, an apparatus, and a terminal.

Background

In the future, the 5G rich application scenarios are abstracted into two categories, one is mobile broadband access, and the other is the Internet of Things (IoT Internet of Things) developed for object-to-object connection, wherein the IoT is divided into two categories, one is mass machine type communication (mtc) with low data rate but massive nodes; the other is an ultra-high reliable low latency connection scenario (URLLC).

In a 5G URLLC scene, scheduling-free access can avoid the whole access process, and the method is an important technology for realizing ultra-low delay access. For periodic URLLC service, a conventional Semi-Persistent Scheduling (Semi-Persistent Scheduling) orthogonal access method SPS based on Semi-Persistent periodic resource reservation can be regarded as an efficient dynamic Scheduling-free and low-delay access method. The period reserved resources matched with the service generation period can ensure high-efficiency resource utilization rate; and each user monopolizes resources, no interference exists between users, and the performance is relatively guaranteed. Of course, to meet the ultra-high reliability requirements of URLLC, it is often necessary to incorporate other techniques to improve reliability.

For the event-triggered aperiodic URLLC service, the conventional periodically reserved orthogonal resources are often not fully utilized: the longer the period of the reserved orthogonal resources is, the higher the utilization rate of the reserved resources is, but the longer the average time for the terminal to access to the terminal to wait is, the more difficult the ultra-low delay requirement is ensured; conversely, the shorter the period of the reserved orthogonal resources is, the shorter the average time for the terminal access to wait for the terminal access is, the easier the ultra-low delay requirement is to be ensured, but the higher the vacancy rate of the reserved resources is, the lower the utilization rate is. In order to improve the utilization rate of the periodically reserved resources, a natural method is to reserve one resource for sharing use by a plurality of users having event triggered services, as shown in fig. 1, where 11 denotes the reserved resource, 12 denotes the user corresponding to the reserved resource, and one SPS resource pool is reserved for 4 users, so that the vacancy rate of the resource is greatly reduced, and the number on the SPS pool accessed twice in fig. 1 is the number of users accessed simultaneously. In order to improve reliability, data of each user may be transmitted more than once, for example, 2 times or 4 times in continuous time, which is also a simplified HARQ (Hybrid Automatic Repeat reQuest) retransmission scheme, that is, retransmission does not require the base station to feed back NACK (non-acknowledgement) for retransmission, but the terminal retransmits according to the pre-configured retransmission times. Thus, high reliability of multiple retransmissions of HARQ can be achieved, and signaling interaction related to the HARQ process is not needed, so that the advantages are obvious, but the disadvantages are also obvious, which may result in large time-frequency overhead, as shown in fig. 2, where 21 is reserved resource and 22 is user corresponding to the resource, and in this case, the resource overhead is doubled.

Disclosure of Invention

The invention provides a data transmission method, a data demodulation device and a terminal, which are used for solving the problems of high transmission reliability and high resource overhead in a URLLC scene in the prior art.

According to a first aspect of the present invention, there is provided a data transmission method, comprising: the base station sends configuration information to the terminal, wherein the configuration information at least comprises: transmitting indication information of time-frequency resources, indication information of a transmission signal generation method, and demodulation-dedicated pilot indication information on the time-frequency resources; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises the following information: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource.

Optionally, the indication information of the transmission signal generation method at least includes indication information of a coding modulation mode, and/or at least one of the following indication information sets: a set of weighting factor information for modulation symbols on a first transmission time-frequency resource and weighting factor information for modulation symbols on a second transmission time-frequency resource.

Optionally, the indication information of the demodulation dedicated pilot on the transmission time-frequency resource indicates the demodulation dedicated pilot of the first transmission time-frequency resource and the demodulation dedicated pilot of the second transmission time-frequency resource.

Optionally, the indication information of the demodulation dedicated pilot of the second transmission time-frequency resource includes: and indicating the second transmission time-frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time-frequency resource, or generating the demodulation special pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time-frequency resource and the indication information of the first transmission time-frequency resource.

Optionally, the transmitting the indication information of the dedicated demodulation pilot on the time-frequency resource includes: the demodulation dedicated pilot on the second transmission time frequency resource is more than the indication information of the demodulation dedicated pilot on the first transmission time frequency resource.

Optionally, the demodulation dedicated pilot on the second transmission time-frequency resource is at least one time of the demodulation dedicated pilot on the first transmission time-frequency resource, and the indication information of the demodulation dedicated pilot on the transmission time-frequency resource includes multiple indication information between the number of the demodulation dedicated pilots on the second transmission time-frequency resource and the number of the first transmission time-frequency resource.

Optionally, the information indicating the signal generation manner transmitted on the second transmission time-frequency resource at least includes: information indicating that the modulation symbols on the second transmission time-frequency resource are full repetitions or partial repetitions of the modulation symbols on the first transmission time-frequency resource.

Optionally, the value of the weighting factor is taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

Optionally, the information is configured to include sequence information by specifying a weighting factor for modulating a symbol on the second transmission time-frequency resource through a sequence, or specifying a weighting factor for modulating a symbol on the first transmission time-frequency resource and a weighting factor for modulating a symbol on the second transmission time-frequency resource through a sequence.

Optionally, the sequence is a sequence in a sequence set, a weighting factor for specifying a modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or the weighting factor for specifying a modulation symbol on the first transmission time-frequency resource and the weighting factor for specifying a modulation symbol on the second transmission time-frequency resource are configured, and the configuration information includes the index of the sequence in the sequence set.

Optionally, the values of the sequences and elements of all sequences in the sequence set are taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

Optionally, the sequence set includes at least one of the following sequence sets and a sequence set formed by processing the following sequence sets; wherein, processing the following sequence sets comprises: multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by 1, i, -1 or-i or multiplying by the power A of i; or, performing phase adjustment or rotation of W × π on each sequence or the Xth sequence element of each sequence in the following sequence set, or multiplying by exp (i × W × π); or multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by a specified value, or multiplying each sequence or the Xth sequence element of each sequence by a specified value respectively; wherein i is an imaginary unit, i ═ sqrt (-1), X is an integer greater than or equal to 1 and less than or equal to the sequence length, a is an integer, and W is a real number; wherein, the sequence set 1 comprises 4 sequences with the length of 1, wherein, the first sequence is [1], the second sequence is [ -1], the third sequence is [ i ], and the fourth sequence is [ -i ]; a sequence set 2 comprising 4 sequences of length 2, wherein the first sequence is [1, 1], the second sequence is [1, -1], the third sequence is [1, i ], and the fourth sequence is [1, -i ]; the sequence set 3 comprises 16 sequences with a length of 3, wherein the first sequence is [1, 1, 1], the second sequence is [1, -1, -1], the third sequence is [ -1, 1, -1], the fourth sequence is [ -1, -1, 1], the fifth sequence is [1, i, -i ], the sixth sequence is [ 1-i, i ], the seventh sequence is [ -1, i, i ], the eighth sequence is [ -1, -i, -i ], the ninth sequence is [ i, 1, -i ], the tenth sequence is [ i, -1, i ], the eleventh sequence is [ -i, 1, i ], the twelfth sequence is [ -i, -1, -i ], the thirteenth sequence is [ i, i, -1], the fourteenth sequence is [ i, -i, 1], a fifteenth sequence of [ -i, i, 1], a sixteenth sequence of [ -i, -i, -1 ]; a set of sequences 4 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, -1], the second sequence is [1, -1, 1], the third sequence is [ -1, 1, 1], the fourth sequence is [ -1, -1, -1], the fifth sequence is [1, i, i ], the sixth sequence is [1, -i, -i ], the seventh sequence is [ -1, i, -i ], the eighth sequence is [ -1, -i, i ], the ninth sequence is [ i, 1, i ], the tenth sequence is [ i, -1, -i ], the eleventh sequence is [ -i, 1, -i ], the twelfth sequence is [ -i, -1, i ], the thirteenth sequence is [ i, i, 1], the fourteenth sequence is [ i, -i, -1] with a fifteenth sequence of [ -i, i, -1] and a sixteenth sequence of [ -i, -i, 1 ];

A sequence set 5 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, i ], the second sequence is [1, -1, -i ], the third sequence is [ -1, 1, -i ], the fourth sequence is [ -1, -1, i ], the fifth sequence is [1, i, 1], the sixth sequence is [1, -i, -1], the seventh sequence is [ -1, i, -1], the eighth sequence is [ -1, -i, 1], the ninth sequence is [ i, 1, 1], the tenth sequence is [ i, -1, -1], the eleventh sequence is [ -i, 1, -1], the twelfth sequence is [ -i, -1, 1], the thirteenth sequence is [ i, i, -i ], the fourteenth sequence is [ i, -i, i ], a fifteenth sequence of [ -i, i, i ], a sixteenth sequence of [ -i, -i, -i ]; a sequence set 6 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, -i ], the second sequence is [1, -1, i ], the third sequence is [ -1, 1, i ], the fourth sequence is [ -1, -1, -i ], the fifth sequence is [1, i, -1], the sixth sequence is [1, -i, 1], the seventh sequence is [ -1, i, 1], the eighth sequence is [ -1, -i, -1], the ninth sequence is [ i, 1, -1], the tenth sequence is [ i, -1, 1], the eleventh sequence is [ -i, 1, 1], the twelfth sequence is [ -i, -1, -1], the thirteenth sequence is [ i, i, i ], the fourteenth sequence is [ i, -i, -i ], a fifteenth sequence of [ -i, i, -i ], a sixteenth sequence of [ -i, -i, i ]; a set of sequences 7 comprising 32 sequences of length 3, wherein the first sequence is [1, 1, 1], the second sequence is [ i, -1, -i ], the third sequence is [ -1, 1, -1], the fourth sequence is [ -i, -1, i ], the fifth sequence is [1, i, -i ], the sixth sequence is [ i, -i, -1], the seventh sequence is [ -1, i, i ], the eighth sequence is [ -i, -i, 1], the ninth sequence is [ i, 1, -i ], the tenth sequence is [ -1, -1, -1], the eleventh sequence is [ -i, 1, i ], the twelfth sequence is [1, -1, 1], the thirteenth sequence is [ i, i, -1], the fourteenth sequence is [ -1, -i, i ], a fifteenth sequence of [ -i, i, 1], a sixteenth sequence of [1, -i, -i ], a seventeenth sequence of [1, 1, -1], an eighteenth sequence of [ i, -1, i ], a nineteenth sequence of [ -1, 1, 1], a twentieth sequence of [ -i, -1, -i ], a twenty-first sequence of [1, i, i ], a twenty-second sequence of [ i, -i, 1], a twenty-third sequence of [ -1, i, -i ], a twenty-fourth sequence of [ -i, -i, -1], a twenty-fifth sequence of [ i, 1, i ], a twenty-sixth sequence of [ -1, -1, 1], a twenty-seventh sequence of [ -i, 1, -i ], a twenty-eighth sequence of [1, -1, -1], a twenty-ninth sequence of [ i, i, 1], a thirty-eighth sequence of [ -1, -i, -i ], a thirty-eighth sequence of [ -i, i, -1], a thirty-seventh sequence of [1, -i, i ]; a set of sequences 8 comprising 32 sequences of length 3, wherein the first sequence is [1, 1, i ], the second sequence is [ i, -1, 1], the third sequence is [ -1, 1, -i ], the fourth sequence is [ -i, -1, -1], the fifth sequence is [1, i, 1], the sixth sequence is [ i, -i, -i ], the seventh sequence is [ -1, i, -1], the eighth sequence is [ -i, -i, i ], the ninth sequence is [ i, 1, 1], the tenth sequence is [ -1, -1, -i ], the eleventh sequence is [ -i, 1, -1], the twelfth sequence is [1, -1, i ], the thirteenth sequence is [ i, i, -i ], the fourteenth sequence is [ -1, -i, -1, the fifteenth sequence being [ -i, i, i ], the sixteenth sequence being [1, -i, 1], the seventeenth sequence being [1, 1, -i ], the eighteenth sequence being [ i, -1, -1], the nineteenth sequence being [ -1, 1, i ], the twentieth sequence being [ -i, -1, 1], the twenty-first sequence being [1, i, -1], the twenty-second sequence being [ i, -i, i ], the twenty-third sequence being [ -1, i, 1], the twenty-fourth sequence being [ -i, -i, -i ], the twenty-fifth sequence being [ i, 1, -1], the twenty-sixth sequence being [ -1, -1, i ], the twenty-seventh sequence being [ -i, 1, 1], the twenty-eighth sequence being [ 1], -1, -i ], the twenty ninth sequence is [ i, i, i ], the thirty th sequence is [ -1, -i, 1], the thirty eleventh sequence is [ -i, i, -i ], the thirty second sequence is [1, -i, -1 ]; a set of sequences 9 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, 1], the second sequence is [1, 1, -1, -1], the third sequence is [1, -1, 1, -1], the fourth sequence is [1, -1, -1, 1], the fifth sequence is [1, 1, i, -i ], the sixth sequence is [1, 1, -i, i ], the seventh sequence is [1, -1, i, i ], the eighth sequence is [1, -1, -i, -i ], the ninth sequence is [1, i, 1, -i ], the tenth sequence is [1, i, -1, i ], the eleventh sequence is [1, -i, 1, i ], the twelfth sequence is [1, -i, -1, -i ], the thirteenth sequence is [1, i, i, -1], the fourteenth sequence is [1, i, -i, 1], the fifteenth sequence is [1, -i, i, 1], the sixteenth sequence is [1, -i, -i, -1 ]; a set of sequences 10 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, -1], the second sequence is [1, 1, -1, 1], the third sequence is [1, -1, 1, 1], the fourth sequence is [1, -1, -1, -1, 1, the fifth sequence is [1, 1, i, i ], the sixth sequence is [1, 1, -i, -i ], the seventh sequence is [1, -1, i, -i ], the eighth sequence is [1, -1, -i, i ], the ninth sequence is [1, i, 1, i ], the tenth sequence is [1, i, -1, -i, i ], the eleventh sequence is [1, -i, 1, -i ], the twelfth sequence is [1, -i, -1, i ], the thirteenth sequence is [1, i, i, 1], the fourteenth sequence is [1, i, -i, -1], the fifteenth sequence is [1, -i, i, -1], the sixteenth sequence is [1, -i, -i, 1 ]; a set of sequences 11 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, i ], the second sequence is [1, 1, -1, -i ], the third sequence is [1, -1, 1, -i ], the fourth sequence is [1, -1, -1, i ], the fifth sequence is [1, 1, i, 1], the sixth sequence is [1, 1, -i, -1], the seventh sequence is [1, -1, i, -1], the eighth sequence is [1, -1, -i, 1], the ninth sequence is [1, i, 1, 1], the tenth sequence is [1, i, -1, -1, 1], the eleventh sequence is [1, -i, 1, -1], the twelfth sequence is [1, -i, -1, 1], the thirteenth sequence is [1, i, i, -i ], the fourteenth sequence is [1, i, -i, i ], the fifteenth sequence is [1, -i, i, i ], the sixteenth sequence is [1, -i, -i, -i ]; a set of sequences 12 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, -i ], the second sequence is [1, 1, -1, i ], the third sequence is [1, -1, 1, i ], the fourth sequence is [1, -1, -1, -i ], the fifth sequence is [1, 1, i, -1], the sixth sequence is [1, 1, -i, 1], the seventh sequence is [1, -1, i, 1], the eighth sequence is [1, -1, -i, -1], the ninth sequence is [1, i, 1, -1], the tenth sequence is [1, i, -1, 1, 1], the eleventh sequence is [1, -i, 1, 1], the twelfth sequence is [1, -i, -1, -1], the thirteenth sequence is [1, i, i, i ], the fourteenth sequence is [1, i, -i, -i ], the fifteenth sequence is [1, -i, i, -i ], the sixteenth sequence is [1, -i, -i, i ]; a set of sequences 13 comprising 32 sequences of length 4, wherein the first sequence is [1, 1, 1, 1], the second sequence is [1, i, -1, -i ], the third sequence is [1, -1, 1, -1], the fourth sequence is [1, -i, -1, i ], the fifth sequence is [1, 1, i, -i ], the sixth sequence is [1, i, -i, -1], the seventh sequence is [1, -1, i, i ], the eighth sequence is [1, -i, -i, 1], the ninth sequence is [1, i, 1, -i ], the tenth sequence is [1, -1, -1], the eleventh sequence is [1, -i, 1, i ], the twelfth sequence is [1, 1, -1, 1], the thirteenth sequence is [1, i, i, -1], the fourteenth sequence is [1, -1, -i, i ], the fifteenth sequence is [1, -i, i, 1], the sixteenth sequence is [1, 1, -i, -i ], the seventeenth sequence is [1, 1, 1, -1], the eighteenth sequence is [1, i, -1, i ], the nineteenth sequence is [1, -1, 1, 1], the twentieth sequence is [1, -i, -1, -i ], the twenty-first sequence is [1, 1, i, i ], the twenty-second sequence is [1, i, -i, 1], the twenty-third sequence is [1, -1, i, -i ], the twenty-fourth sequence is [1, -i, -i, -1], the twenty-fifth sequence is [1, i, 1, i ], the twenty-sixth sequence is [1, -1, -1, 1], the twenty-seventh sequence is [1, -i, 1, -i ], the twenty-eighth sequence is [1, 1, -1, -1], the twenty-ninth sequence is [1, i, i, 1], the thirty-fifth sequence is [1, -1, -i, -i ], the thirty-eleventh sequence is [1, -i, i, -1], the thirty-second sequence is [1, 1, -i, i ]; the sequence set 14 comprises 32 sequences with a length of 4, wherein the first sequence is [1, 1, 1, i ], the second sequence is [1, i, -1, 1], the third sequence is [1, -1, 1, -i ], the fourth sequence is [1, -i, -1, -1], the fifth sequence is [1, 1, i, 1], the sixth sequence is [1, i, -i, -i ], the seventh sequence is [1, -1, i, -1], the eighth sequence is [1, -i, -i, i ], the ninth sequence is [1, i, 1, 1], the tenth sequence is [1, -1, -1, -i ], the eleventh sequence is [1, -i, 1, -1], the twelfth sequence is [1, 1, -1, i ], the thirteenth sequence is [1, i, i, -i ], the fourteenth sequence is [1, -1, -i, -1], the fifteenth sequence is [1, -i, i, i ], the sixteenth sequence is [1, 1, -i, 1], the seventeenth sequence is [1, 1, 1, -i ], the eighteenth sequence is [1, i, -1, -1], the nineteenth sequence is [1, -1, 1, i ], the twentieth sequence is [1, -i, -1, 1], the twenty-first sequence is [1, 1, i, -1], the twenty-second sequence is [1, i, -i, i ], the twenty-third sequence is [1, -1, i, 1], the twenty-fourth sequence is [1, -i, -i, -i ], the twenty-fifth sequence is [1, i, 1, -1], the twenty-sixth sequence is [1, -1, -1, i ], the twenty-seventh sequence is [1, -i, 1, 1], the twenty-eighth sequence is [1, 1, -1, -i ], the twenty-ninth sequence is [1, i, i, i ], the thirty-fifth sequence is [1, -1, -i, 1], the thirty-eleventh sequence is [1, -i, i, -i ], the thirty-second sequence is [1, 1, -i, -1 ]; a set of sequences 15 comprising 16 sequences of length 5, wherein the first sequence is [1, 1, 1, 1, 1], the second sequence is [1, 1, 1, -1, -1], the third sequence is [1, 1, -1, 1, -1], the fourth sequence is [1, 1, -1, -1, 1, 1], the fifth sequence is [1, -1, 1, 1, -1], the sixth sequence is [1, -1, 1, -1, 1], the seventh sequence is [1, -1, -1, 1, 1], the eighth sequence is [1, -1, -1, 1, 1], the ninth sequence is [ -1, 1, 1, 1, -1], the tenth sequence is [ -1, 1, 1, -1, 1, 1], the eleventh sequence is [ -1, 1, -1, 1, 1], the twelfth sequence is [ -1, 1, -1, -1, -1], the thirteenth sequence is [ -1, -1, 1, 1, 1], the fourteenth sequence is [ -1, -1, 1, -1, -1, 1], the fifteenth sequence is [ -1, -1, -1, 1, -1], the sixteenth sequence is [ -1, -1, -1, 1, 1 ]; a set of sequences 16 comprising 16 sequences of length 6, wherein the first sequence is [1, 0, 1, 0, 1, 0], the second sequence is [ -1, 0, 1, 0, -1, 0], the third sequence is [1, 0, -1, 0, -1, 0], the fourth sequence is [ -1, 0, -1, 0, 1, 0], the fifth sequence is [1, 0, 0, 1, 0, 1], the sixth sequence is [ -1, 0, 0, 1, 0, -1], the seventh sequence is [1, 0, 0, -1, 0, -1, 0, -1, 1], the eighth sequence is [ -1, 0, 0, -1, 0, 1], the ninth sequence is [0, 1, 0, 0, 1], the tenth sequence is [0, -1, 1, 0, 0, -1], the eleventh sequence is [ 0], 1, -1, 0, 0, -1], the twelfth sequence is [0, -1, -1, 0, 0, 1], the thirteenth sequence is [0, 1, 0, 1, 1, 0], the fourteenth sequence is [0, -1, 0, 1, -1, 0], the fifteenth sequence is [0, 1, 0, -1, -1, 0], the sixteenth sequence is [0, -1, 0, -1, 1, 0 ]; a sequence set 17 comprising 16 sequences of length 6, wherein the first sequence is [1, 1, 1, 0, 0, 0], the second sequence is [ -1, 1, -1, 0, 0, 0], the third sequence is [1, -1, -1, 0, 0, 0], the fourth sequence is [ -1, -1, 1, 0, 0, 0], the fifth sequence is [0, 0, 1, 1, 1, 0], the sixth sequence is [0, 0, -1, -1, 1, 0], the seventh sequence is [0, 0, -1, 1, -1, 0], the eighth sequence is [0, 0, 1, -1, -1, 0], the ninth sequence is [1, 0, 0, 0, 1, 1], the tenth sequence is [1, 0, 0, 1, -1], the eleventh sequence is [ 1], 0, 0, 0, -1, -1], the twelfth sequence being [ -1, 0, 0, 0, -1, 1], the thirteenth sequence being [0, 1, 0, 1, 0, 1], the fourteenth sequence being [0, 1, 0, -1, 0, -1], the fifteenth sequence being [0, -1, 0, 1, 0, -1], the sixteenth sequence being [0, -1, 0, -1, 0, 0, 1 ]; a set of sequences 18 comprising 16 sequences of length 6, wherein the first sequence is [1, 1, 1, 1], the second sequence is [1, 1, 1, 1, -1, -1, 1], the third sequence is [1, 1, 1, -1, 1, -1], the fourth sequence is [1, 1, 1, -1, -1, 1], the fifth sequence is [1, 1, -1, 1, -1], the sixth sequence is [1, 1, -1, 1, 1], the seventh sequence is [1, 1, -1, -1, 1, 1, 1], the eighth sequence is [1, 1, -1, -1, 1], the ninth sequence is [1, -1, 1, 1, 1, -1], the tenth sequence is [1, -1, 1, 1, -1, 1], the eleventh sequence is [1, -1, 1, -1, 1, 1], the twelfth sequence is [1, -1, 1, -1, -1, -1], the thirteenth sequence is [1, -1, -1, 1, 1, 1], the fourteenth sequence is [1, -1, -1, 1, -1], the fifteenth sequence is [1, -1, -1, -1, 1, -1], the sixteenth sequence is [1, -1, -1, -1, 1, 1.

Optionally, the transmission time corresponding to the first transmission time-frequency resource is the same as the transmission time corresponding to the second transmission time-frequency resource, the transmission time slot corresponding to the first transmission time-frequency resource is the same as the TTI corresponding to the second transmission time-frequency resource, and the frame number corresponding to the first transmission time-frequency resource is the same as the frame number corresponding to the second transmission time-frequency resource.

Optionally, the transmission time corresponding to the first transmission time-frequency resource is different from the transmission time corresponding to the second transmission time-frequency resource, or the transmission time slot TTI corresponding to the first transmission time-frequency resource is different from the TTI corresponding to the second transmission time-frequency resource, or the frame number corresponding to the first transmission time-frequency resource is different from the frame number corresponding to the second transmission time-frequency resource.

Optionally, the first transmission time-frequency resource and the second transmission time-frequency resource have the same size.

Optionally, the first transmission time-frequency resource and the second transmission time-frequency resource have different sizes.

Optionally, the configuration information is semi-persistent scheduling SPS information, and the configuration information further indicates that the terminal transmits data at a preset transmission start time and a preset transmission period within a preset time period.

According to a second aspect of the present invention, there is provided a data transmission method, comprising: the terminal receives configuration information sent by a base station, wherein the configuration information at least comprises: transmitting indication information of the time-frequency resource, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the time-frequency resource; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises the following information: indication information of the demodulation dedicated pilot on the first transmission time-frequency resource and the second transmission time-frequency resource; generating a transmission signal according to the indication information of the transmission signal generation method; inserting the corresponding special demodulation pilot frequency into the transmission signal according to the indication information of the special demodulation pilot frequency; and mapping the transmission signal inserted with the special demodulation pilot frequency to the time frequency positions of the first transmission time frequency resource and the second transmission time frequency resource according to the configuration information.

Optionally, the indication information of the transmission signal generation method at least includes indication information of a coding modulation mode, and/or at least one of the following indication information sets: a set of weighting factor information for modulation symbols on a first transmission time-frequency resource and weighting factor information for modulation symbols on a second transmission time-frequency resource; generating a transmission signal according to indication information of a transmission signal generation method, including: and/or the terminal correspondingly weights a weighting factor for the modulation symbols on the first transmission time-frequency resource and the second transmission time-frequency resource according to the indication information of the coding modulation mode and/or the weighting factor information.

Optionally, the indication information of the demodulation dedicated pilot of the second transmission time-frequency resource includes: and indicating the second transmission time-frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time-frequency resource, or generating the demodulation special pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time-frequency resource.

Optionally, the information indicating the signal generation manner transmitted on the second transmission time-frequency resource at least includes: information indicating that a modulation symbol on the second transmission time-frequency resource is a full repetition or a partial repetition of a modulation symbol on the first transmission time-frequency resource; generating a transmission signal according to indication information of a transmission signal generation method, including: and repeating all or part of the modulation symbols on the first transmission time-frequency resource to generate modulation symbols on the second transmission time-frequency resource.

Optionally, the configuration information includes sequence information, where a weighting factor of a modulation symbol on the second transmission time-frequency resource is specified by a sequence, or a weighting factor of a modulation symbol on the first transmission time-frequency resource and a weighting factor of a modulation symbol on the second transmission time-frequency resource are specified by a sequence; generating a transmission signal according to indication information of a transmission signal generation method, including: and determining a sequence through sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is expanded by using the sequence, or forming the transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

Optionally, the sequence is a sequence in a sequence set, and a weighting factor for specifying a modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or a weighting factor for specifying a modulation symbol on the first transmission time-frequency resource and a weighting factor for specifying a modulation symbol on the second transmission time-frequency resource, where the configuration information includes an index of the sequence in the sequence set; generating a transmission signal according to indication information of a transmission signal generation method, including: the terminal determines a sequence from the sequence set known to the terminal by the index of the sequence in the sequence set included in the configuration information, and forms a transmission symbol on the second transmission time-frequency resource or forms a transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource after the generated modulation symbol is extended by using the sequence.

Optionally, the sequences and the values of the elements of all sequences in the sequence set are taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

Optionally, the configuration information is semi-persistent scheduling SPS information, and the configuration information further indicates that the terminal transmits data at a preset transmission start time and a preset transmission period within a preset time period; generating a transmission signal according to indication information of a transmission signal generation method, including: and generating a transmission signal according to the SPS information, and transmitting data at a preset starting transmission time and a preset transmission period within a preset time period.

According to a third aspect of the present invention, there is provided a data demodulation method comprising: the base station receives data sent by the terminal and identifies the terminal through demodulation special pilot frequency in the data; demodulating data on a first transmission time-frequency resource; reconstructing and eliminating successfully decoded data on the first transmission time-frequency resource and reconstructing and eliminating data on a second transmission time-frequency resource corresponding to the successfully decoded data; and demodulating the rest data in the first transmission time-frequency resource and the second transmission time-frequency resource according to the symbol weighting factor on the first transmission time-frequency resource and the symbol weighting factor on the second transmission time-frequency resource preset in the configuration information, or according to the sequence of the symbol weighting factor of the first transmission time-frequency resource and the symbol weighting factor of the second transmission time-frequency resource preset in the configuration information, wherein the preset symbol weighting factor is used for separating data of different terminals.

Optionally, the configuration information includes: a demodulation dedicated pilot frequency of the first transmission time frequency resource and a demodulation dedicated pilot frequency of the second transmission time frequency resource; or, the configuration information indicates that the second transmission time-frequency resource directly multiplexes the demodulation dedicated pilot frequency of the first transmission time-frequency resource, or, the demodulation dedicated pilot frequency of the second transmission time-frequency resource is generated through the indication information of the demodulation dedicated pilot frequency of the first transmission time-frequency resource; or, the configuration information indicates that the modulation symbol on the second transmission time-frequency resource is a full repetition or a partial repetition of the modulation symbol on the first transmission time-frequency resource.

According to a fourth aspect of the present invention, there is provided a data transmission apparatus comprising: a sending module, configured to send configuration information to a terminal through a base station, where the configuration information at least includes: transmitting indication information of time-frequency resources, indication information of a transmission signal generation method, and demodulation-dedicated pilot indication information on the time-frequency resources; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource;

the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource.

Optionally, the indication information of the demodulation dedicated pilot on the transmission time-frequency resource configures the demodulation dedicated pilot of the first transmission time-frequency resource and the demodulation dedicated pilot of the second transmission time-frequency resource.

Optionally, the indication information of the transmission signal generation manner on the second transmission time-frequency resource at least includes: information indicating that the modulation symbols on the second transmission time-frequency resource are full repetitions or partial repetitions of the modulation symbols on the first transmission time-frequency resource.

According to a fifth aspect of the present invention, there is provided a data transmission apparatus comprising: a receiving module, configured to receive, by a terminal, configuration information sent by a base station, where the configuration information at least includes: indication information of transmission time-frequency resources, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the transmission time-frequency resources; wherein, the indication information of the transmission time frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of the demodulation dedicated pilot on the first transmission time-frequency resource and the second transmission time-frequency resource; the generating module is used for generating a transmission signal according to the indication information of the transmission signal generating method; the pilot frequency inserting module is used for inserting the corresponding special demodulation pilot frequency into the transmission signal according to the indication information of the special demodulation pilot frequency; and the mapping module is used for mapping the transmission signals inserted with the demodulation special pilot frequency to the time frequency positions of the first transmission time frequency resource and the second transmission time frequency resource according to the configuration information.

Optionally, the indication information of the transmission signal generation method at least includes indication information of a coding modulation mode, and/or at least one of the following indication information sets: a set of weighting factor information for modulation symbols on a first transmission time-frequency resource and weighting factor information for modulation symbols on a second transmission time-frequency resource; the generation module is specifically configured to: and/or the terminal correspondingly weights a weighting factor for the modulation symbols on the first transmission time-frequency resource and the second transmission time-frequency resource according to the indication information of the coded modulation mode and/or the weighting factor information.

Optionally, the indication information of the signal generation manner transmitted on the second transmission time-frequency resource at least includes: information indicating that a modulation symbol on the second transmission time-frequency resource is a full repetition or a partial repetition of a modulation symbol on the first transmission time-frequency resource; the generation module is specifically configured to: and repeating all or part of the modulation symbols on the first transmission time-frequency resource to generate modulation symbols on the second transmission time-frequency resource.

Optionally, the weighting factor of the modulation symbol on the second transmission time-frequency resource is specified by a sequence, or the weighting factor of the modulation symbol on the first transmission time-frequency resource and the weighting factor of the modulation symbol on the second transmission time-frequency resource are specified by a sequence, and the configuration information includes information of the sequence; the generation module is specifically configured to: and determining a sequence through sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is expanded by using the sequence, or forming the transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

Optionally, the sequence is a sequence in a sequence set, a weighting factor for specifying a modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or a weighting factor for specifying a modulation symbol on the first transmission time-frequency resource and a weighting factor for specifying a modulation symbol on the second transmission time-frequency resource are configured, and the configuration information includes an index of the sequence in the sequence set; the generation module is specifically configured to: and determining a sequence through sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is expanded by using the sequence, or forming the transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

Optionally, the configuration information is semi-persistent scheduling SPS information, and the configuration information further indicates that the terminal transmits data at a preset transmission start time and a preset transmission period within a preset time period; the generation module is specifically configured to: and generating a transmission signal according to the SPS information, and transmitting data at a preset starting transmission time and a preset transmission period in a preset time period.

According to a sixth aspect of the present invention, there is provided a data demodulation apparatus comprising: the receiving module is used for receiving data sent by the terminal and identifying the terminal through demodulation special pilot frequency in the data; the first demodulation module is used for demodulating data on the first transmission time-frequency resource; the reconstruction module is used for reconstructing and eliminating successfully decoded data on the first transmission time-frequency resource and reconstructing and eliminating data on a second transmission time-frequency resource corresponding to the successfully decoded data; and the second demodulation module is configured to demodulate remaining data in the first transmission time-frequency resource and the second transmission time-frequency resource according to a symbol weighting factor on the first transmission time-frequency resource and a symbol weighting factor on the second transmission time-frequency resource preset in the configuration information, or according to a sequence of a symbol weighting factor of the first transmission time-frequency resource and a symbol weighting factor of the second transmission time-frequency resource preset in the configuration information, where the preset symbol weighting factors are used to separate data of different terminals.

Optionally, the configuration information includes: a demodulation dedicated pilot frequency of the first transmission time-frequency resource and a demodulation dedicated pilot frequency of the second transmission time-frequency resource; or, the configuration information indicates that the second transmission time-frequency resource directly multiplexes the demodulation dedicated pilot frequency of the first transmission time-frequency resource, or, the demodulation dedicated pilot frequency of the second transmission time-frequency resource is generated through the indication information of the demodulation dedicated pilot frequency of the first transmission time-frequency resource; or, the configuration information indicates that the modulation symbols on the second transmission time-frequency resource are all or part of the repetition of the modulation symbols on the first transmission time-frequency resource.

According to a seventh aspect of the present invention, there is provided a terminal comprising a processor and a memory storing processor-executable instructions and storing a set of sequences, the instructions, when executed by the processor, performing the following: receiving configuration information sent by a base station through a terminal, wherein the configuration information at least comprises: transmitting indication information of the time-frequency resource, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the time-frequency resource; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource;

the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of the demodulation dedicated pilot on the first transmission time-frequency resource and the second transmission time-frequency resource; generating a transmission signal according to the indication information of the transmission signal generation method; inserting the corresponding special demodulation pilot frequency into the transmission signal according to the indication information of the special demodulation pilot frequency;

And mapping the transmission signal inserted with the special demodulation pilot frequency to the time frequency positions of the first transmission time frequency resource and the second transmission time frequency resource according to the configuration information.

Optionally, the indication information of the demodulation dedicated pilot in the second transmission time-frequency resource includes: and indicating the second transmission time frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time frequency resource, or generating the demodulation special pilot frequency of the second transmission time frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time frequency resource.

Optionally, the indication information of the signal generation manner transmitted on the second transmission time-frequency resource at least includes: information indicating that the modulation symbols on the second transmission time-frequency resource are full or partial repetitions of modulation symbols on the first transmission time-frequency resource.

Optionally, the configuration information includes sequence information by specifying a weighting factor for modulating a symbol on the second transmission time-frequency resource through a sequence, or specifying a weighting factor for modulating a symbol on the first transmission time-frequency resource and a weighting factor for modulating a symbol on the second transmission time-frequency resource through a sequence.

Optionally, the configuration information is SPS information, and the configuration information further indicates that the terminal transmits data at a preset transmission start time and a preset transmission period within a preset time period. The invention has the following beneficial effects:

In the scheme provided by this embodiment, the base station allocates the common redundancy pool to the terminal through the issuance of the configuration information, so that the terminal sends the data for repeated transmission through the common redundancy pool, and the resource utilization rate is improved.

Drawings

Fig. 1 is a schematic diagram illustrating a resource reservation for SPS reservation shared by multiple URLLC users in the related art;

fig. 2 is a schematic diagram of twice continuous transmissions of an URLLC signal and twice SPS pre-allocated resources in a simplified HARQ retransmission scenario in the related art;

fig. 3 is a flowchart of a data transmission method according to a second embodiment of the present invention;

FIG. 4 is a diagram illustrating data transmission according to a fourth embodiment of the present invention;

FIG. 5 is a diagram illustrating data transmission according to a fifth embodiment of the present invention;

FIG. 6 is a diagram illustrating data transmission according to a sixth embodiment of the present invention;

FIG. 7 is a diagram illustrating data transmission according to a seventh embodiment of the present invention;

fig. 8 is a flowchart of a data demodulation method according to an eighth embodiment of the present invention;

fig. 9 is a diagram of terminal data on a pool dedicated to a data demodulation SPS group according to an eighth embodiment of the present invention;

fig. 10 is a diagram illustrating demodulation cancellation of demodulation success data according to an eighth embodiment of the present invention;

fig. 11 is a schematic diagram of jointly detecting and demodulating terminal data according to an eighth embodiment of the present invention;

Fig. 12 is a block diagram of a data transmission apparatus according to a ninth embodiment of the present invention;

fig. 13 is a block diagram of a data transmission apparatus according to a tenth embodiment of the present invention;

fig. 14 is a block diagram showing a data demodulating apparatus according to an eleventh embodiment of the present invention;

fig. 15 is a schematic structural diagram of a base station apparatus according to a thirteenth embodiment of the present invention;

fig. 16 is a schematic structural diagram of a terminal device according to a fourteenth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First embodiment

The embodiment provides a data transmission method, which is executed by a base station and comprises the following processing:

before the configuration information is sent by the base station to the terminal, the method provided in this embodiment may further include a processing procedure of configuring the configuration information by the base station, where the configuration information at least includes: transmitting indication information of time-frequency resources, indication information of a transmission signal generation method, and demodulation-dedicated pilot indication information on the time-frequency resources; wherein, the indication information of the transmission time frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource.

The indication information of the transmission signal generation method at least comprises indication information of a coding modulation mode, and/or at least one of the following indication information sets: a set of weighting factor information for modulation symbols on a first transmission time-frequency resource and weighting factor information for modulation symbols on a second transmission time-frequency resource.

The indication information of the demodulation dedicated pilot on the transmission time-frequency resource may be configured in the following manners:

the indication information of the demodulation dedicated pilot frequency on the transmission time frequency resource indicates the demodulation dedicated pilot frequency of the first transmission time frequency resource and the demodulation dedicated pilot frequency of the second transmission time frequency resource; or, the indication information of the demodulation dedicated pilot of the time-frequency resource in the second transmission includes: and indicating the second transmission time-frequency resource to directly multiplex the demodulation dedicated pilot frequency of the first transmission time-frequency resource, or generating the demodulation dedicated pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation dedicated pilot frequency of the first transmission time-frequency resource and the demodulation dedicated pilot frequency of the first transmission time-frequency resource.

The indication information of the demodulation dedicated pilot on the transmission time-frequency resource may specifically include: the indication information that the demodulation dedicated pilot frequency on the second transmission time frequency resource is more than the demodulation dedicated pilot frequency on the first transmission time frequency resource; or the demodulation dedicated pilot on the second transmission time-frequency resource is at least one time of the demodulation dedicated pilot on the first transmission time-frequency resource, and the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises multiple indication information between the number of the demodulation dedicated pilots on the second transmission time-frequency resource and the number of the first transmission time-frequency resource.

The indication information of the signal generation mode transmitted on the second transmission time-frequency resource at least comprises: information indicating that the modulation symbols on the second transmission time-frequency resource are full or partial repetitions of modulation symbols on the first transmission time-frequency resource.

The weighting factor in this embodiment is taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

Specifically, in this embodiment, the weighting factor of the modulation symbol on the second transmission time-frequency resource may be specified by a sequence, or the weighting factor of the modulation symbol on the first transmission time-frequency resource and the weighting factor of the modulation symbol on the second transmission time-frequency resource are specified by a sequence, and the configuration information includes information of the sequence, where the sequence may be a sequence in a sequence set, the weighting factor of the modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or the weighting factor of the modulation symbol on the first transmission time-frequency resource and the weighting factor of the modulation symbol on the second transmission time-frequency resource are specified, the configuration information includes an index of the sequence in the sequence set, and values of elements of all sequences in the sequence and the sequence set are taken from a set {1, -1, j, -j } or a set {1, -1, j, -j,0 }.

The spreading of the modulation symbols using the sequence is as follows: spreading the modulated data symbols with a spreading sequence of a certain length (e.g., a spreading sequence of length N, where the spreading sequence of length N means that the spreading sequence is composed of N symbols, or may be composed of N elements, where N symbols/N elements may be N digital symbols), and specifically, multiplying each modulated data symbol with each symbol of the spreading sequence to finally form a symbol sequence of the same length as the used spreading sequence.

Assuming that the data symbol is Sk, where Sk may be a constellation point symbol modulated by BPSK/QAM or a symbol modulated by an OFDM carrier, and assuming that the spreading sequence is N-long spreading sequence C ═ C1, C2, … … cN }, in this case, the symbol spreading process is to multiply Sk by each element in the spreading sequence C, so as to finally obtain a spread sequence { Skc1, Skc2, … … SkcN }. The specific formula can be expressed as:

the sequence set referred to in this embodiment includes at least one of the following sequence sets and a sequence set formed by processing the following sequence sets; wherein, processing the following sequence sets comprises: multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by 1, i, -1 or-i or multiplying by the power A of i; or, performing phase adjustment or rotation of W × π on each sequence or the Xth sequence element of each sequence in the following sequence set, or multiplying by exp (i × W × π); or multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by a specified value, or multiplying each sequence or the Xth sequence element of each sequence by a specified value respectively; wherein i is an imaginary unit, i ═ sqrt (-1), X is an integer greater than or equal to 1 and less than or equal to the sequence length, a is an integer, and W is a real number;

Wherein, the sequence set 1 comprises 4 sequences with the length of 1, wherein, the first sequence is [1], the second sequence is [ -1], the third sequence is [ i ], and the fourth sequence is [ -i ];

a sequence set 2 comprising 4 sequences of length 2, wherein the first sequence is [1, 1], the second sequence is [1, -1], the third sequence is [1, i ], and the fourth sequence is [1, -i ];

a set of sequences 3 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, 1], the second sequence is [1, -1, -1], the third sequence is [ -1, 1, -1], the fourth sequence is [ -1, -1, 1], the fifth sequence is [1, i, -i ], the sixth sequence is [1, -i, i ], the seventh sequence is [ -1, i, i ], the eighth sequence is [ -1, -i, -i ], the ninth sequence is [ i, 1, -i ], the tenth sequence is [ i, -1, i ], the eleventh sequence is [ -i, 1, i ], the twelfth sequence is [ -i, -1, -i ], the thirteenth sequence is [ i, i, -1], the fourteenth sequence is [ i, -i, 1], a fifteenth sequence of [ -i, i, 1], a sixteenth sequence of [ -i, -i, -1 ];

a set of sequences 4 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, -1], the second sequence is [1, -1, 1], the third sequence is [ -1, 1, 1], the fourth sequence is [ -1, -1, -1], the fifth sequence is [1, i, i ], the sixth sequence is [1, -i, -i ], the seventh sequence is [ -1, i, -i ], the eighth sequence is [ -1, -i, i ], the ninth sequence is [ i, 1, i ], the tenth sequence is [ i, -1, -i ], the eleventh sequence is [ -i, 1, -i ], the twelfth sequence is [ -i, -1, i ], the thirteenth sequence is [ i, i, 1], the fourteenth sequence is [ i, -i, -1], a fifteenth sequence of [ -i, i, -1], a sixteenth sequence of [ -i, -i, 1 ];

A set of sequences 5 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, i ], the second sequence is [1, -1, -i ], the third sequence is [ -1, 1, -i ], the fourth sequence is [ -1, -1, i ], the fifth sequence is [1, i, 1], the sixth sequence is [1, -i, -1], the seventh sequence is [ -1, i, -1], the eighth sequence is [ -1, -i, 1], the ninth sequence is [ i, 1, 1], the tenth sequence is [ i, -1, -1], the eleventh sequence is [ -i, 1, -1], the twelfth sequence is [ -i, -1, 1], the thirteenth sequence is [ i, i, -i ], the fourteenth sequence is [ i, -i, i ], a fifteenth sequence of [ -i, i, i ], a sixteenth sequence of [ -i, -i, -i ];

a set of sequences 6 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, -i ], the second sequence is [1, -1, i ], the third sequence is [ -1, 1, i ], the fourth sequence is [ -1, -1, -i ], the fifth sequence is [1, i, -1], the sixth sequence is [1, -i, 1], the seventh sequence is [ -1, i, 1], the eighth sequence is [ -1, -i, -1], the ninth sequence is [ i, 1, -1], the tenth sequence is [ i, -1, 1], the eleventh sequence is [ -i, 1, 1], the twelfth sequence is [ -i, -1, -1], the thirteenth sequence is [ i, i, i ], the fourteenth sequence is [ i, -i, -i ], a fifteenth sequence of [ -i, i, -i ], a sixteenth sequence of [ -i, -i, i ];

A sequence set 7 comprising 32 sequences of length 3, wherein the first sequence is [1, 1, 1], the second sequence is [ i, -1, -i ], the third sequence is [ -1, 1, -1], the fourth sequence is [ -i, -1, i ], the fifth sequence is [1, i, -i ], the sixth sequence is [ i, -i, -1], the seventh sequence is [ -1, i, i ], the eighth sequence is [ -i, -i, 1], the ninth sequence is [ i, 1, -i ], the tenth sequence is [ -1, -1, -1], the eleventh sequence is [ -i, 1, i ], the twelfth sequence is [1, -1, 1], the thirteenth sequence is [ i, i, -1], the fourteenth sequence is [ -1, -i, i, the fifteenth sequence is [ -i, i, 1], the sixteenth sequence is [1, -i, -i ], the seventeenth sequence is [1, 1, -1], the eighteenth sequence is [ i, -1, i ], the nineteenth sequence is [ -1, 1, 1], the twentieth sequence is [ -i, -1, -i ], the twenty-first sequence is [1, i, i ], the twenty-second sequence is [ i, -i, 1], the twenty-third sequence is [ -1, i, -i ], the twenty-fourth sequence is [ -i, -i, -1], the twenty-fifth sequence is [ i, 1, i ], the twenty-sixth sequence is [ -1, -1, 1], the twenty-seventh sequence is [ -i, 1, -i ], the twenty-eighth sequence is [1, -1, -1], the twenty ninth sequence is [ i, i, 1], the thirty th sequence is [ -1, -i, -i ], the thirty eleventh sequence is [ -i, i, -1], the thirty second sequence is [1, -i, i ];

A sequence set 8, comprising 32 sequences of length 3, wherein the first sequence is [1, 1, i ], the second sequence is [ i, -1, 1], the third sequence is [ -1, 1, -i ], the fourth sequence is [ -i, -1, -1], the fifth sequence is [1, i, 1], the sixth sequence is [ i, -i, -i ], the seventh sequence is [ -1, i, -1], the eighth sequence is [ -i, -i, i ], the ninth sequence is [ i, 1, 1], the tenth sequence is [ -1, -1, -i ], the eleventh sequence is [ -i, 1, -1], the twelfth sequence is [1, -1, i ], the thirteenth sequence is [ i, i, -i ], the fourteenth sequence is [ -1, -i, -1, the fifteenth sequence being [ -i, i, i ], the sixteenth sequence being [1, -i, 1], the seventeenth sequence being [1, 1, -i ], the eighteenth sequence being [ i, -1, -1], the nineteenth sequence being [ -1, 1, i ], the twentieth sequence being [ -i, -1, 1], the twenty-first sequence being [1, i, -1], the twenty-second sequence being [ i, -i, i ], the twenty-third sequence being [ -1, i, 1], the twenty-fourth sequence being [ -i, -i, -i ], the twenty-fifth sequence being [ i, 1, -1], the twenty-sixth sequence being [ -1, -1, i ], the twenty-seventh sequence being [ -i, 1, 1], the twenty-eighth sequence being [ 1], -1, -i ], the twenty ninth sequence is [ i, i, i ], the thirty th sequence is [ -1, -i, 1], the thirty eleventh sequence is [ -i, i, -i ], the thirty second sequence is [1, -i, -1 ];

A set of sequences 9 comprising 16 sequences of length 4, wherein,

the first sequence is [1, 1, 1, 1], the second sequence is [1, 1, -1, -1], the third sequence is [1, -1, 1, -1], the fourth sequence is [1, -1, -1, 1], the fifth sequence is [1, 1, i, -i ], the sixth sequence is [1, 1, -i, i ], the seventh sequence is [1, -1, i, i ], the eighth sequence is [1, -1, -i, -i ], the ninth sequence is [1, i, 1, -i ], the tenth sequence is [1, i, -1, i ], the eleventh sequence is [1, -i, 1, i ], the twelfth sequence is [1, -i, -1, -i ], the thirteenth sequence is [1, i, i, -1], the fourteenth sequence is [1, i, -i, 1], the fifteenth sequence being [1, -i, i, 1], the sixteenth sequence being [1, -i, -i, -1 ];

a set of sequences 10 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, -1], the second sequence is [1, 1, -1, 1], the third sequence is [1, -1, 1, 1], the fourth sequence is [1, -1, -1, -1, 1, the fifth sequence is [1, 1, i, i ], the sixth sequence is [1, 1, -i, -i ], the seventh sequence is [1, -1, i, -i ], the eighth sequence is [1, -1, -i, i ], the ninth sequence is [1, i, 1, i ], the tenth sequence is [1, i, -1, -i, i ], the eleventh sequence is [1, -i, 1, -i ], the twelfth sequence is [1, -i, -1, i ], the thirteenth sequence is [1, i, i, 1], the fourteenth sequence is [1, i, -i, -1], the fifteenth sequence is [1, -i, i, -1], the sixteenth sequence is [1, -i, -i, 1 ];

A set of sequences 11 comprising 16 sequences of length 4, wherein,

the first sequence is [1, 1, 1, i ], the second sequence is [1, 1, -1, -i ], the third sequence is [1, -1, 1, -i ], the fourth sequence is [1, -1, -1, i ], the fifth sequence is [1, 1, i, 1], the sixth sequence is [1, 1, -i, -1], the seventh sequence is [1, -1, i, -1], the eighth sequence is [1, -1, -i, 1], the ninth sequence is [1, i, 1, 1], the tenth sequence is [1, i, -1, -1], the eleventh sequence is [1, -i, 1, -1], the twelfth sequence is [1, -i, -1, 1, the thirteenth sequence is [1, i, i, -i ], the fourteenth sequence is [1, i, -i, i ], a fifteenth sequence of [1, -i, i, i ], a sixteenth sequence of [1, -i, -i, -i ];

a set of sequences 12 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, -i ], the second sequence is [1, 1, -1, i ], the third sequence is [1, -1, 1, i ], the fourth sequence is [1, -1, -1, -i ], the fifth sequence is [1, 1, i, -1], the sixth sequence is [1, 1, -i, 1], the seventh sequence is [1, -1, i, 1], the eighth sequence is [1, -1, -i, -1], the ninth sequence is [1, i, 1, -1], the tenth sequence is [1, i, -1, 1, 1], the eleventh sequence is [1, -i, 1, 1], the twelfth sequence is [1, -i, -1, -1], the thirteenth sequence is [1, i, i, i ], the fourteenth sequence is [1, i, -i, -i ], the fifteenth sequence is [1, -i, i, -i ], the sixteenth sequence is [1, -i, -i, i ];

A set of sequences 13 comprising 32 sequences of length 4, wherein the first sequence is [1, 1, 1, 1], the second sequence is [1, i, -1, -i ], the third sequence is [1, -1, 1, -1], the fourth sequence is [1, -i, -1, i ], the fifth sequence is [1, 1, i, -i ], the sixth sequence is [1, i, -i, -1], the seventh sequence is [1, -1, i, i ], the eighth sequence is [1, -i, -i, 1], the ninth sequence is [1, i, 1, -i ], the tenth sequence is [1, -1, -1], the eleventh sequence is [1, -i, 1, i ], the twelfth sequence is [1, 1, -1, 1], the thirteenth sequence is [1, i, i, -1], the fourteenth sequence is [1, -1, -i, i ], the fifteenth sequence is [1, -i, i, 1], the sixteenth sequence is [1, 1, -i, -i ], the seventeenth sequence is [1, 1, 1, -1], the eighteenth sequence is [1, i, -1, i ], the nineteenth sequence is [1, -1, 1, 1, twenty, the twenty-first sequence is [1, -i, -1, -i ], the twenty-second sequence is [1, i, -i, 1], the twenty-third sequence is [1, -1, i, -i, 1], the twenty-fourth sequence is [1, -i, -i, -1], the twenty-fifth sequence is [1, i, 1, i ], the twenty-sixth sequence is [1, -1, -1, 1], the twenty-seventh sequence is [1, -i, 1, -i ], the twenty-eighth sequence is [1, 1, -1, -1, 1], the twenty-ninth sequence is [1, i, i, 1], the thirty-fifth sequence is [1, -1, -i, -i ], the thirty-eleventh sequence is [1, -i, i, -1], the thirty-second sequence is [1, 1, -i, i ];

A set of sequences 14 comprising 32 sequences of length 4, wherein the first sequence is [1, 1, 1, i ], the second sequence is [1, i, -1, 1], the third sequence is [1, -1, 1, -i ], the fourth sequence is [1, -i, -1, -1], the fifth sequence is [1, 1, i, 1], the sixth sequence is [1, i, -i, -i ], the seventh sequence is [1, -1, i, -1], the eighth sequence is [1, -i, -i, i ], the ninth sequence is [1, i, 1, 1, tenth sequence is [1, -1, -1, -i ], the eleventh sequence is [1, -i, 1, -1], the twelfth sequence is [1, 1, -1, i ], the thirteenth sequence is [1, i, i, -i ], the fourteenth sequence is [1, -1, -i, -1], the fifteenth sequence is [1, -i, i, i ], the sixteenth sequence is [1, 1, -i, 1], the seventeenth sequence is [1, 1, 1, -i ], the eighteenth sequence is [1, i, -1, -1], the nineteenth sequence is [1, -1, 1, i ], the twentieth sequence is [1, -i, -1, 1], the twenty-first sequence is [1, 1, i, -1], the twenty-second sequence is [1, i, -i, i ], the twenty-third sequence is [1, -1, i, 1], the twenty-fourth sequence is [1, -i, -i, -i ], the twenty-fifth sequence is [1, i, 1, -1], the twenty-sixth sequence is [1, -1, -1, i ], the twenty-seventh sequence is [1, -i, 1, 1], the twenty-eighth sequence is [1, 1, -1, -i ], the twenty-ninth sequence is [1, i, i, i ], the thirty-fifth sequence is [1, -1, -i, 1], the thirty-eleventh sequence is [1, -i, i, -i ], the thirty-second sequence is [1, 1, -i, -1 ];

A set of sequences 15 comprising 16 sequences of length 5, wherein the first sequence is [1, 1, 1, 1, 1], the second sequence is [1, 1, 1, -1, -1], the third sequence is [1, 1, -1, 1, -1], the fourth sequence is [1, 1, -1, -1, 1, 1], the fifth sequence is [1, -1, 1, 1, -1], the sixth sequence is [1, -1, 1, -1, 1], the seventh sequence is [1, -1, -1, 1, 1], the eighth sequence is [1, -1, -1, 1, 1], the ninth sequence is [ -1, 1, 1, 1, -1], the tenth sequence is [ -1, 1, 1, -1, 1, 1], the eleventh sequence is [ -1, 1, -1, 1, 1], the twelfth sequence is [ -1, 1, -1, -1, -1], the thirteenth sequence is [ -1, -1, 1, 1, 1], the fourteenth sequence is [ -1, -1, 1, -1, -1, 1], the fifteenth sequence is [ -1, -1, -1, 1, -1], the sixteenth sequence is [ -1, -1, -1, 1, 1 ];

a set of sequences 16 comprising 16 sequences of length 6, wherein the first sequence is [1, 0, 1, 0, 1, 0], the second sequence is [ -1, 0, 1, 0, -1, 0], the third sequence is [1, 0, -1, 0, -1, 0], the fourth sequence is [ -1, 0, -1, 0, 1, 0], the fifth sequence is [1, 0, 0, 1, 0, 1], the sixth sequence is [ -1, 0, 0, 1, 0, -1], the seventh sequence is [1, 0, 0, -1, 0, -1, 0, -1], the eighth sequence is [ -1, 0, 0, -1, 0, 1], the ninth sequence is [0, 1, 0, 0, 1], the tenth sequence is [0, -1, 1, 0, 0, -1], the eleventh sequence is [ 0], 1, -1, 0, 0, -1], the twelfth sequence is [0, -1, -1, 0, 0, 1], the thirteenth sequence is [0, 1, 0, 1, 1, 0], the fourteenth sequence is [0, -1, 0, 1, -1, 0], the fifteenth sequence is [0, 1, 0, -1, -1, 0], the sixteenth sequence is [0, -1, 0, -1, 1, 0 ];

A set of sequences 17 comprising 16 sequences of length 6, wherein the first sequence is [1, 1, 1, 0, 0, 0], the second sequence is [ -1, 1, -1, 0, 0, 0], the third sequence is [1, -1, -1, 0, 0, 0], the fourth sequence is [ -1, -1, 1, 0, 0, 0], the fifth sequence is [0, 0, 1, 1, 1, 0], the sixth sequence is [0, 0, -1, -1, 1, 0], the seventh sequence is [0, 0, -1, 1, -1, 0], the eighth sequence is [0, 0, 1, -1, 0], the ninth sequence is [1, 0, 0, 1, 1], the tenth sequence is [1, 0, 0, 1, -1], the eleventh sequence is [1, 0, 0, 0, -1, wherein the twelfth sequence is [ -1, 0, 0, 0, -1, 1], the thirteenth sequence is [0, 1, 0, 1, 0, 1], the fourteenth sequence is [0, 1, 0, -1, 0, -1], the fifteenth sequence is [0, -1, 0, 1, 0, -1], the sixteenth sequence is [0, -1, 0, -1, 0, 0, 1 ];

a set of sequences 18 comprising 16 sequences of length 6, wherein the first sequence is [1, 1, 1, 1], the second sequence is [1, 1, 1, 1, -1, -1, 1], the third sequence is [1, 1, 1, -1, 1, -1], the fourth sequence is [1, 1, 1, -1, -1, 1], the fifth sequence is [1, 1, -1, 1, 1, -1], the sixth sequence is [1, 1, -1, 1, 1], the seventh sequence is [1, 1, -1, -1, 1, 1, 1], the eighth sequence is [1, 1, -1, -1, -1, 1], the ninth sequence is [1, -1, 1, 1, 1, -1], the tenth sequence is [1, -1, 1, 1, -1, 1, wherein the eleventh sequence is [1, -1, 1, -1, 1, 1], the twelfth sequence is [1, -1, 1, -1, -1, 1], the thirteenth sequence is [1, -1, -1, 1, 1], the fourteenth sequence is [1, -1, -1, 1, -1], the fifteenth sequence is [1, -1, -1, -1, 1, -1], and the sixteenth sequence is [1, -1, -1, -1, -1, 1.

Wherein, the transmission time corresponding to the first transmission time frequency resource is the same as the transmission time corresponding to the second transmission time frequency resource, the transmission time slot corresponding to the first transmission time frequency resource is the same as the TTI corresponding to the second transmission time frequency resource, and the frame number corresponding to the first transmission time frequency resource is the same as the frame number corresponding to the second transmission time frequency resource.

Wherein, the transmission time corresponding to the first transmission time frequency resource is different from the transmission time corresponding to the second transmission time frequency resource, or the transmission time slot TTI corresponding to the first transmission time frequency resource is different from the TTI corresponding to the second transmission time frequency resource, or the frame number corresponding to the first transmission time frequency resource is different from the frame number corresponding to the second transmission time frequency resource.

In this embodiment, the configuration information may be SPS information, and based on this, the terminal is further instructed to transmit data at a preset start transmission time and a preset transmission period within a preset time period in the configuration information.

Second embodiment

The embodiment provides a data transmission method, which is executed by a terminal and comprises the following processing: step 301: the terminal receives configuration information sent by a base station, wherein the configuration information at least comprises: indication information of transmission time-frequency resources, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the transmission time-frequency resources; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises the following information: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource;

Step 302: generating a transmission signal according to the indication information of the method for generating the transmission signal on the first uplink transmission time-frequency resource and the second uplink transmission time-frequency resource;

step 303: inserting the corresponding special demodulation pilot frequency into the transmission signal according to the indication information of the special demodulation pilot frequency;

step 304: and mapping the transmission signal inserted with the special demodulation pilot frequency to the time frequency positions of the first transmission time frequency resource and the second transmission time frequency resource according to the configuration information.

The indication information of the transmission signal generation method at least comprises indication information of a coding modulation mode, and/or at least one of the following indication information sets: a set of weighting factor information for modulation symbols on a first transmission time-frequency resource and weighting factor information for modulation symbols on a second transmission time-frequency resource; based on this, generating a transmission signal according to the indication information of the transmission signal generation method includes: and/or the terminal correspondingly weights a weighting factor for the modulation symbols on the first transmission time-frequency resource and the second transmission time-frequency resource according to the indication information of the coded modulation mode and/or the weighting factor information.

The indication information of the demodulation dedicated pilot on the transmission time-frequency resource may be configured in the following ways: the indication information of the demodulation dedicated pilot frequency on the transmission time frequency resource indicates the demodulation dedicated pilot frequency of the first transmission time frequency resource and the demodulation dedicated pilot frequency of the second transmission time frequency resource; or, the indication information of the demodulation dedicated pilot in the second transmission time-frequency resource includes: and indicating the second transmission time-frequency resource to directly multiplex the demodulation dedicated pilot frequency of the first transmission time-frequency resource, or generating the demodulation dedicated pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation dedicated pilot frequency of the first transmission time-frequency resource and the demodulation dedicated pilot frequency of the first time-frequency resource.

Wherein, the indication information of the demodulation dedicated pilot frequency on the transmission time frequency resource comprises: the demodulation dedicated pilot on the second transmission time frequency resource is more than the indication information of the demodulation dedicated pilot on the first transmission time frequency resource.

The dedicated demodulation pilot on the second transmission time-frequency resource is at least one time of the dedicated demodulation pilot on the first transmission time-frequency resource, and the indication information of the dedicated demodulation pilot on the transmission time-frequency resource comprises multiple indication information between the number of the dedicated demodulation pilots on the second transmission time-frequency resource and the number of the first transmission time-frequency resource.

Transmitting indication information of a signal generation mode on a second transmission time-frequency resource, wherein the indication information at least comprises the following information: information indicating that the modulation symbols on the second transmission time-frequency resource are all repetitions or partial repetitions of the modulation symbols on the first transmission time-frequency resource, based on which a transmission signal is generated according to the indication information of the transmission signal generation method, including:

and repeating all or part of the modulation symbols on the first transmission time-frequency resource to generate modulation symbols on the second transmission time-frequency resource.

Specifically, in this embodiment, the step of assigning a weighting factor for modulating a symbol on the second transmission time-frequency resource through a sequence, or assigning a weighting factor for modulating a symbol on the first transmission time-frequency resource and a weighting factor for modulating a symbol on the second transmission time-frequency resource through a sequence, where the configuration information includes information of the sequence, and based on this, the step of generating a transmission signal according to the indication information of the transmission signal generation method includes: and determining a sequence through sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is expanded by using the sequence, or forming the transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

Wherein, the sequence may be a sequence in a sequence set, a weighting factor for specifying a modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or a weighting factor for specifying a modulation symbol on the first transmission time-frequency resource and a weighting factor for specifying a modulation symbol on the second transmission time-frequency resource, the configuration information includes an index of the sequence in the sequence set, values of elements of all sequences in the sequence and the sequence set are taken from a set {1, -1, j, -j } or a set {1, -1, j, -j,0}, and based on this, a transmission signal is generated according to indication information of a transmission signal generation method, including: the generating of the transmission signal according to the indication information of the transmission signal generating method includes: and the terminal determines a sequence from the sequence set known by the terminal according to the index of the sequence in the sequence set contained in the configuration information, and forms a transmission symbol on the second transmission time-frequency resource after expanding the generated modulation symbol by using the sequence, or forms a transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource. The sequence set referred to in this embodiment may specifically include at least one of the nineteen sequence sets listed in the first embodiment and the sequence sets formed by processing these sequence sets; wherein processing the sequence sets comprises: multiplying each sequence or the Xth sequence element of each sequence in the sequence sets by 1, i, -1 or-i or multiplying by the power A of i; or, performing phase adjustment or rotation of W × π on each sequence or the Xth sequence element of each sequence in the following sequence set, or multiplying by exp (i × W × π); or multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by a specified value, or multiplying each sequence or the Xth sequence element of each sequence by a specified value; wherein i is an imaginary unit, i ═ sqrt (-1), X is an integer greater than or equal to 1 and less than or equal to the sequence length, a is an integer, and W is a real number.

The transmission time or transmission time slot TTI or frame number corresponding to the first transmission time frequency resource and the second transmission time frequency resource configured for the terminal in the configuration information are the same or at least one item is different; the first transmission time frequency resource and the second transmission time frequency resource have the same or different sizes.

In this embodiment, the configuration information may be SPS information, based on which the terminal is further instructed to transmit data in a preset transmission start time and a preset transmission period within a preset time period, and based on which the transmission signal is generated according to the instruction information of the transmission signal generation method, the method includes: and generating a transmission signal according to the SPS information, and transmitting data at a preset starting transmission time and a preset transmission period in a preset time period.

Third embodiment

In this embodiment, the first transmission time-frequency resource is equivalent to an SPS dedicated pool dedicated to a group of SPS users, and therefore may be referred to as a group dedicated pool, for example, 4 users are a group, and are configured as users dedicated to the first transmission time-frequency resource through SPS configuration information; in contrast, the second transmission time-frequency resource is equivalent to a common redundant resource pool, which is shared by the repeatedly transmitted data of multiple groups of users.

And the amount of data retransmitted on the common redundant resource pool may not be equal to the amount of data sent on the group-specific pool, i.e. the number of retransmitted symbols may not be equal to the number of symbols sent on the group-specific pool. The SPS common redundancy pool is used for transmitting data repeatedly transmitted by the preset terminals, and each preset terminal corresponds to an SPS group dedicated pool, i.e. the first transmission time-frequency resource.

Based on this, the SPS group dedicated pool may be configured to be larger than the SPS common redundant pool, in this case, the SPS configuration information sent by the base station to the terminal, and other transmission-related information may be specifically as shown in table 1 below:

TABLE 1

As shown in table 1 above, in particular, the configuration information may also be configured as weighted repetition, where the scalar quantity of the repeated weighting may also be-1, j, or-j, i.e. corresponding to the time domain spreading, i.e. the group-specific pool and the common redundant pool, together using the (1, 1) (1, -1) or (1, j) or (1, -j) spreading sequence.

Further, the TTI in table 1 may also be set to 0.125ms, or the subcarrier spacing may be set to 15KHz, and the TTI may be set to 1 OFDM duration.

Further, the MCS in table 1 may also be set to LTE convolutional code, 1/3, QPSK.

Fourth embodiment

The present embodiment provides another data transmission method, which is substantially the same as the data transmission method provided in the first embodiment, except that in the present embodiment, the number of SPS common redundancy pools may be multiple, and TTIs corresponding to the SPS common redundancy pools and the SPS group dedicated pools are different from each other, as shown in fig. 4, 41 indicates an SPS group dedicated pool, 42 is 3, and 43 indicates a user, in which case, SPS configuration information, and other transmission-related information may be specifically shown in table 2 below:

TABLE 2

A set of 16 sequences of 4 lengths:

the first sequence is [1, 1, 1, 1],

the second sequence is [1, 1, -1, -1],

the third sequence is [1, -1, 1, -1],

the fourth sequence is [1, -1, -1, 1],

the fifth sequence is [1, 1, 1i, -1i ],

the sixth sequence is [1, 1, -1i, 1i ],

the seventh sequence is [1, -1, 1i, 1i ],

the eighth sequence is [1, -1, -1i, -1i ],

the ninth sequence is [1, 1i, 1, -1i ],

the tenth sequence is [1, 1i, -1, 1i ],

the eleventh sequence is [1, -1i, 1, 1i ],

The twelfth sequence is [1, -1i, -1, -1i ],

the thirteenth sequence is [1, 1i, 1i, -1],

the fourteenth sequence is [1, 1i, -1i, 1],

the fifteenth sequence is [1, -1i, 1i, 1],

the sixteenth sequence is [1, -1i, -1i, -1 ];

further, the TTI in table 2 may also be set to 0.125ms, or the subcarrier spacing may be set to 15KHz, and the TTI may be set to 1 OFDM duration.

Further, the MCS in table 2 may also be set to LTE convolutional code, 1/3, QPSK.

Fifth embodiment

The present embodiment provides another data transmission method, which is substantially the same as the data transmission method provided in the first embodiment, except that, as shown in fig. 5, the number of SPS common redundancy pool 52 may be multiple (3 shown in the figure), and TTIs corresponding to SPS group dedicated pool 51 and SPS common redundancy pool 52 are different, 53 represents a user, where TTIs corresponding to at least two (two shown in the figure) SPS common redundancy pools in the SPS common redundancy pool are the same, in which case, SPS configuration information, and other transmission related information may be specifically shown in table 3 below:

TABLE 3

A set of sequences comprising 16 4 long sequences:

The first sequence is [1, 1, 1, -1],

the second sequence is [1, 1, -1, 1],

the third sequence is [1, -1, 1, 1],

the fourth sequence is [1, -1, -1, -1],

the fifth sequence is [1, 1, 1i, 1i ],

the sixth sequence is [1, 1, -1i, -1i ],

the seventh sequence is [1, -1, 1i, -1i ],

the eighth sequence is [1, -1, -1i, 1i ],

the ninth sequence is [1, 1i, 1, 1i ],

the tenth sequence is [1, 1i, -1, -1i ],

the eleventh sequence is [1, -1i, 1, -1i ],

the twelfth sequence is [1, -1i, -1, 1i ],

the thirteenth sequence is [1, 1i, 1i, 1],

the fourteenth sequence is [1, 1i, -1i, -1],

the fifteenth sequence is [1, -1i, 1i, -1],

the sixteenth sequence is [1, -1i, -1i, 1 ];

further, the TTI in table 3 may also be set to 0.125ms, or the subcarrier spacing may be set to 15KHz, and the TTI may be set to 1 OFDM duration.

Further, the MCS in table 3 may also be set to LTE convolutional code, 1/3, QPSK.

Sixth embodiment

This embodiment provides a data transmission method, which is substantially the same as the data transmission method provided in the first embodiment, except that the method sets the same TTI corresponding to the SPS group dedicated pool and the SPS common redundant pool, and the number of PRBs corresponding to the SPS group dedicated pool and the SPS common redundant pool is different.

As shown in fig. 6, the base station configures 4 group dedicated pools 61 having a certain period and one common redundant pool 62 for the next TTI through SPS. 4 SPS dedicated pools, each dedicated pool being pre-allocated to 4 users, i.e. a total of 16 users 63. The SPS common redundancy pool is reserved for these 16 users 63. Each user transmits repeated copy data of the previous dedicated pool 61 on the common redundancy pool, and the data of each user is weighted with different weights (i.e. scalars), and specifically, the data of the terminal is transmitted on the SPS group dedicated pool and the SPS common redundancy pool after repeating and weighting the preset scalars, which is equivalent to a symbol spreading technique. As shown in fig. 6, the data is transmitted repeatedly, and the repeated versions of different users are weighted by one of [1, j, -1, -j ], and these weighted values can be pre-configured by the base station through SPS configuration information. Equivalent to time domain spreading, 2 long spreading, the spreading sequence is [ 11 ]; [ 1-1 ]; [1 j] (ii) a One of [ 1-j ].

In this embodiment, the MCS used by each terminal may also be configured by the base station, specifically may be configured by the SPS configuration information, and the UL DMRS (Demodulation Reference Signal) pilots used by the terminals in the SPS group dedicated pool and the SPS common redundant pool may also be configured in advance by the base station through the SPS configuration information, and generally, different users may be configured to use DMRS configurations with different cyclic shifts, or different users may be configured to use mutually orthogonal sequences as the DMRSs.

In this embodiment, the SPS configuration information and other transmission-related information may be specifically shown in table 4 below:

TABLE 4

Set of sequences comprising 4 sequences of length 2:

the first sequence is [1, 1],

the second sequence is [1, -1],

the third sequence is [1, i ],

the fourth sequence is [1, -i ];

further, the TTI in table 4 may also be set to 0.125ms, or the subcarrier spacing may be set to 15KHz, and the TTI may be set to 1 OFDM duration.

Further, the MCS in table 4 may also be set to LTE convolutional code, 1/3, QPSK.

Seventh embodiment

This embodiment provides a data transmission method, which is substantially the same as the method provided in the first embodiment, except that the method sets that the transmission time intervals TTI corresponding to the SPS group dedicated pool and the SPS common redundant pool are different, and the number of physical resource blocks PRB corresponding to the SPS group dedicated pool and the SPS common redundant pool is the same.

As shown in fig. 7, the base station configures 4 group dedicated pools 71 having a certain period and one common redundant pool 72 through SPS. 4 SPS dedicated pools, each dedicated pool being pre-allocated to 4 users, i.e. a total of 16 users 73. The SPS common redundancy pool 72 is reserved for these 16 users 73. Each user transmits repeated copy data of the dedicated pool 71 on the common redundancy pool, and the data of each user is weighted with different weights (i.e. scalars), specifically, the data of the terminal is transmitted on the SPS group dedicated pool and the SPS common redundancy pool after repeating and weighting the preset scalars, which is equivalent to a symbol spreading technique. As shown in fig. 7, the data is transmitted repeatedly once, and the repeated versions of different users are weighted by one of [1, j, -1, -j ], and these weighted values can be preconfigured by the base station through SPS configuration information. Equivalent to frequency domain spreading, 2-length spreading, the spreading sequence is [ 11 ]; [ 1-1 ]; [1 j] (ii) a One of [ 1-j ].

In this embodiment, the SPS configuration information and other transmission-related information may be specifically shown in table 5 below:

TABLE 5

Further, the TTI in table 5 may also be set to 0.125ms, or the subcarrier spacing may be set to 15KHz, and the TTI may be set to 1 OFDM duration.

Further, the MCS in table 5 may also be set to LTE convolutional code, 1/3, QPSK.

Eighth embodiment

The present embodiment provides a data demodulation method, which may be performed by a receiver on the base station side, and fig. 8 is a flowchart of the method, and as shown in fig. 8, the method includes the following processes:

step 801: the base station receives data sent by the terminal and identifies the terminal through demodulation special pilot frequency in the data;

step 802: demodulating data on a first transmission time-frequency resource;

step 803: reconstructing and eliminating successfully decoded data on the first transmission time-frequency resource and reconstructing and eliminating data on a second transmission time-frequency resource corresponding to the successfully decoded data;

step 804: and demodulating the rest data in the first transmission time-frequency resource and the second transmission time-frequency resource according to the symbol weighting factor on the first transmission time-frequency resource and the symbol weighting factor on the second transmission time-frequency resource preset in the configuration information, or according to the sequence of the symbol weighting factor of the first transmission time-frequency resource and the symbol weighting factor of the second transmission time-frequency resource preset in the configuration information, wherein the preset symbol weighting factor is used for separating the data of different terminals.

The second transmission time-frequency resource corresponds to at least two preset terminals, the second transmission time-frequency resource is used for transmitting data repeatedly transmitted by the preset terminals, and each preset terminal corresponds to one first transmission time-frequency resource.

The SPS common redundancy pool (i.e., the second transmission time-frequency resource) corresponds to at least two preset terminals, the SPS common redundancy pool is used for transmitting data repeatedly transmitted by the preset terminals, and each preset terminal corresponds to one SPS group dedicated pool (i.e., the first transmission time-frequency resource).

The implementation process of the method is further explained as follows:

in this embodiment, because the DMRSs for the pilots of the terminals are pre-configured and orthogonal to each other by the base station, the base station may first perform user discovery through the DMRSs (i.e., identify the lowest user/z corresponding to the current data), and perform channel estimation through the DMRSs after the user discovery.

Then, the terminal data in the SPS group dedicated pool may be demodulated and decoded first, as shown in fig. 9, the terminal data in the first 3 SPS group dedicated pools may be decoded successfully, and then these 3 terminal data may be reconstructed and eliminated, and this reconstruction and elimination includes the reconstruction and elimination in the two pools of the SPS group dedicated pool and the SPS common redundant pool. After the 3 terminal data are deleted from the redundancy pool, 2 users remain, as shown in fig. 10. Until the SPS group dedicated pool cannot decode the terminal data any more, as shown in fig. 11, the SPS group dedicated pool and the SPS common redundant pool are jointly detected by two pools, and jointly detected by sequence despreading or MMSE (maximum likelihood sequence detection) method.

And reconstructing and eliminating successfully decoded terminal data, wherein the reconstructing and eliminating comprises successfully decoded data in the SPS group dedicated pool and data in an SPS common redundant pool corresponding to the data.

Ninth embodiment

The present embodiment provides a data transmission apparatus, the apparatus is disposed at a base station side, fig. 12 is a block diagram of the apparatus, and as shown in fig. 12, the apparatus 120 includes the following structure:

a sending module 121, configured to send configuration information to a terminal through a base station, where the configuration information at least includes: transmitting indication information of time-frequency resources, indication information of a transmission signal generation method, and demodulation-dedicated pilot indication information on the time-frequency resources; wherein, the indication information of the transmission time frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource.

the indication information of the demodulation dedicated pilot frequency on the transmission time frequency resource indicates the demodulation dedicated pilot frequency of the first transmission time frequency resource and the demodulation dedicated pilot frequency of the second transmission time frequency resource; or, the indication information of the demodulation dedicated pilot of the time-frequency resource in the second transmission includes: and indicating the second transmission time frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time frequency resource, or generating the demodulation special pilot frequency of the second transmission time frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time frequency resource and the indication information of the first transmission time frequency resource.

The indication information of the signal generation mode transmitted on the second transmission time-frequency resource at least comprises: information indicating that the modulation symbols on the second transmission time-frequency resource are full repetitions or partial repetitions of the modulation symbols on the first transmission time-frequency resource.

In this embodiment, the weighting factor is selected from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

The sequence set referred to in this embodiment may specifically include at least one of the nineteen sequence sets listed in the first embodiment and the sequence sets formed by processing these sequence sets; wherein processing the sequence sets comprises: multiplying each sequence or the Xth sequence element of each sequence in the sequence sets by 1, i, -1 or-i or multiplying by the power A of i; or, performing phase adjustment or rotation of W × π on each sequence or the Xth sequence element of each sequence in the following sequence set, or multiplying by exp (i × W × π); or multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by a specified value, or multiplying each sequence or the Xth sequence element of each sequence by a specified value; wherein i is an imaginary unit, i ═ sqrt (-1), X is an integer greater than or equal to 1 and less than or equal to the sequence length, a is an integer, and W is a real number.

The configuration information related in this embodiment may also have the following characteristics:

In this embodiment, the configuration information may be SPS information, and based on this, the terminal is further instructed in the configuration information to transmit data at a preset start transmission time and a preset transmission period within a preset time period.

Tenth embodiment

This embodiment provides a data transmission device, which is applied to a terminal side, and fig. 13 is a block diagram of the device, as shown in the figure, the device 130 specifically includes the following components:

a receiving module 131, configured to receive, by a terminal, configuration information sent by a base station, where the configuration information at least includes:

indication information of transmission time-frequency resources, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the transmission time-frequency resources; wherein, the indication information of the transmission time frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource;

The indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises the following information: indication information of the demodulation dedicated pilot on the first transmission time-frequency resource and the second transmission time-frequency resource;

a generating module 132, configured to generate a transmission signal according to the indication information of the transmission signal generating method;

an insert pilot module 133, which inserts the corresponding demodulation dedicated pilot into the transmission signal according to the indication information of the demodulation dedicated pilot;

the mapping module 134 is configured to map the transmission signal inserted with the demodulation dedicated pilot to the time-frequency positions of the first transmission time-frequency resource and the second transmission time-frequency resource according to the configuration information.

The indication information of the transmission signal generation method at least comprises indication information of a coding modulation mode, and/or at least one of the following indication information sets: the generating module 132 is specifically configured to, based on the set of weighting factor information of the modulation symbols on the first transmission time-frequency resource and the set of weighting factor information of the modulation symbols on the second transmission time-frequency resource: and/or the terminal correspondingly weights a weighting factor for the modulation symbols on the first transmission time-frequency resource and the second transmission time-frequency resource according to the indication information of the coding modulation mode and/or the weighting factor information.

The indication information of the demodulation dedicated pilot on the transmission time-frequency resource may be configured in the following ways:

the indication information of the demodulation dedicated pilot frequency on the transmission time frequency resource indicates the demodulation dedicated pilot frequency of the first transmission time frequency resource and the demodulation dedicated pilot frequency of the second transmission time frequency resource; or, the indication information of the demodulation dedicated pilot in the second transmission time-frequency resource includes: and indicating the second transmission time-frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time-frequency resource, or generating the demodulation special pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time-frequency resource and the indication information of the first transmission time-frequency resource.

The indication information of the signal generation mode transmitted on the second transmission time-frequency resource at least comprises: the generating module 132 is specifically configured to, based on the information indicating that the modulation symbols on the second transmission time-frequency resource are full repetitions or partial repetitions of the modulation symbols on the first transmission time-frequency resource: and repeating all or part of the modulation symbols on the first transmission time-frequency resource to generate modulation symbols on the second transmission time-frequency resource.

Specifically, in this embodiment, the weighting factor of the modulation symbol on the second transmission time-frequency resource may be specified by a sequence, or the weighting factor of the modulation symbol on the first transmission time-frequency resource and the weighting factor of the modulation symbol on the second transmission time-frequency resource are specified by a sequence, and the configuration information includes sequence information, based on which the generating module 132 is specifically configured to: and determining a sequence through sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is expanded by using the sequence, or forming the transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

The sequence may be one sequence in a sequence set, the weighting factor specifying the modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or the weighting factor specifying the modulation symbol on the first transmission time-frequency resource and the weighting factor specifying the modulation symbol on the second transmission time-frequency resource are configured, the configuration information includes an index of the sequence in the sequence set, values of elements of all sequences in the sequence and the sequence set are taken from a set {1, -1, j, -j } or a set {1, -1, j, -j,0}, and based on this, the generating module 132 is specifically configured to: and determining a sequence through sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is expanded by using the sequence, or forming the transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

The sequence set referred to in this embodiment may specifically include at least one of the nineteen sequence sets listed in the first embodiment and the sequence sets formed by processing these sequence sets; wherein processing the sequence sets comprises: multiplying each sequence or the Xth sequence element of each sequence in the sequence sets by 1, i, -1 or-i or by the power A of i; or, performing phase adjustment or rotation of W × π on each sequence or the Xth sequence element of each sequence in the following sequence set, or multiplying by exp (i × W × π); or multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by a specified value, or multiplying each sequence or the Xth sequence element of each sequence by a specified value respectively; wherein i is an imaginary unit, i ═ sqrt (-1), X is an integer greater than or equal to 1 and less than or equal to the sequence length, a is an integer, and W is a real number.

In this embodiment, the configuration information may be SPS information, and based on this, the configuration information further indicates that the terminal transmits data at a preset start transmission time and a preset transmission period within a preset time period, and based on this, the generating module is specifically configured to: and generating a transmission signal according to the SPS information, and transmitting data at a preset starting transmission time and a preset transmission period within a preset time period.

Eleventh embodiment

This embodiment provides a data demodulation apparatus, which may be specifically disposed on a base station side, and as shown in fig. 14, a block diagram of a structure of the apparatus 140 is shown, and the apparatus includes the following structures:

a receiving module 141, configured to receive data sent by a terminal, and identify the terminal through a demodulation dedicated pilot in the data;

a first demodulation module 142, configured to demodulate data on the first transmission time-frequency resource;

a reconstructing module 143, configured to reconstruct and eliminate successfully decoded data on the first transmission time-frequency resource, and reconstruct and eliminate data on the second transmission time-frequency resource corresponding to the successfully decoded data;

the second demodulation module 144 is configured to demodulate remaining data in the first transmission time-frequency resource and the second transmission time-frequency resource according to a symbol weighting factor on the first transmission time-frequency resource and a symbol weighting factor on the second transmission time-frequency resource preset in the configuration information, or according to a sequence of a symbol weighting factor of the first transmission time-frequency resource and a symbol weighting factor of the second transmission time-frequency resource preset in the configuration information, where the preset symbol weighting factors are used to separate data of different terminals.

Wherein, the configuration information includes: a demodulation dedicated pilot frequency of the first transmission time frequency resource and a demodulation dedicated pilot frequency of the second transmission time frequency resource; or, the configuration information indicates that the second transmission time-frequency resource directly multiplexes the demodulation dedicated pilot frequency of the first transmission time-frequency resource, or, the demodulation dedicated pilot frequency of the second transmission time-frequency resource is generated through the indication information of the demodulation dedicated pilot frequency of the first transmission time-frequency resource and the demodulation dedicated pilot frequency of the first time-frequency resource; or, the configuration information indicates that the modulation symbols on the second transmission time-frequency resource are all or part of the repetition of the modulation symbols on the first transmission time-frequency resource.

The configuration information related in this embodiment may be specifically the same as the configuration information described in the first embodiment, and therefore, the description thereof is omitted.

Twelfth embodiment

The present embodiments provide a terminal comprising a processor and a memory storing processor-executable instructions that, when executed by the processor, perform the following:

the terminal receives configuration information sent by a base station, wherein the configuration information at least comprises: transmitting indication information of the time-frequency resource, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the time-frequency resource; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of the demodulation dedicated pilot on the first transmission time-frequency resource and the second transmission time-frequency resource;

Generating a transmission signal according to the indication information of the method for generating the transmission signal on the first uplink transmission time-frequency resource and the second uplink transmission time-frequency resource;

inserting the corresponding special demodulation pilot frequency into the transmission signal according to the indication information of the special demodulation pilot frequency;

and mapping the transmission signal inserted with the demodulation special pilot frequency to the time frequency positions of the first transmission time frequency resource and the second transmission time frequency resource according to the configuration information.

Specifically, in this embodiment, the weighting factor of the modulation symbol on the second transmission time-frequency resource may be specified by a sequence, or the weighting factor of the modulation symbol on the first transmission time-frequency resource and the weighting factor of the modulation symbol on the second transmission time-frequency resource may be specified by a sequence, and the configuration information includes information of the sequence, where the sequence may be a sequence in a sequence set, the weighting factor of the modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or the weighting factor of the modulation symbol on the first transmission time-frequency resource and the weighting factor of the modulation symbol on the second transmission time-frequency resource are specified, the configuration information includes an index of the sequence in the sequence set, and values of elements of all sequences in the sequence and the sequence set are taken from a set {1, -1, j, -j } or a set {1, -1, j, -j,0 }.

Thirteenth embodiment

The embodiment of the invention also relates to a computer program, a storage medium storing the program or the sequence set and base station equipment.

The program is used for implementing the data transmission method, and includes:

sending configuration information to a terminal, wherein the configuration information at least comprises: indication information of transmission time-frequency resources, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the transmission time-frequency resources; the transmitting the indication information of the time-frequency resource comprises the following steps: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises the following information: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource.

The configuration information related in this embodiment may specifically have any one of the characteristics of the configuration information described in the first embodiment, and details of this part have been described in the first embodiment, so details are not described here again.

The storage medium is mainly used for storing the program, and therefore, the program in the storage medium is not described in detail in the embodiment; the storage medium may be a medium capable of storing the program.

The technical solutions of the data transmission methods disclosed in the foregoing embodiments may be implemented and executed by base station equipment. As shown in fig. 15, the base station apparatus 150 may include one or more (only one shown) processors 152 (the processors 152 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 154 for storing data, and a data transceiver 156 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 15 is merely illustrative and is not intended to be a single limitation on the structure of the base station. For example, the base station apparatus 150 may further include more or fewer components than those shown in fig. 15 or have a different configuration from that shown in fig. 15 by splitting or combining the above functions.

The memory 154 may be used to store software programs and modules of application software, and program instructions/modules corresponding to the data transmission method disclosed in the foregoing embodiments may be stored in the memory 154, which has been described in detail in the foregoing embodiments with respect to the data transmission method, so that this embodiment will not be repeated in detail.

The processor 152 executes various functional applications and data processing by executing software programs and modules stored in the memory 154, thereby implementing the above-described method. The memory 154 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 154 may further include memory located remotely from the processor 152 (cloud memory), which may be connected to the base station apparatus 150 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The data transceiver 156 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the base station apparatus 150. In one example, the data transceiver 156 includes a Network adapter (NIC) that can be connected to other Network devices via a base station to communicate with the internet. In one example, the data transceiver 156 may be a Radio Frequency (RF) module, which is used to communicate with the internet via wireless.

Fourteenth embodiment

The embodiment of the invention also relates to a computer program, a storage medium and a terminal, wherein the storage medium and the terminal store the program or the sequence set.

Wherein, the program is used for realizing the data transmission method, and comprises the following steps:

the terminal receives configuration information sent by a base station, wherein the configuration information at least comprises: transmitting indication information of the time-frequency resource, indication information of a transmission signal generation method and indication information of demodulation dedicated pilot frequency on the time-frequency resource; wherein, the indication information of the transmission time frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource; the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on a first transmission time-frequency resource and a second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises the following information: indication information of the demodulation dedicated pilot on the first transmission time-frequency resource and the second transmission time-frequency resource;

The configuration information related in this embodiment may specifically have any one of the characteristics of the configuration information described in the first embodiment, and since the detailed description of this part has been already made in the first embodiment, it is not repeated herein. The storage medium is mainly used for storing the program, and therefore, the program in the storage medium is not described in detail in the embodiment; the storage medium may be a medium capable of storing the program.

The technical solution of the data transmission method disclosed in the foregoing embodiment may be implemented and executed by a terminal device. The terminal may be a mobile terminal (a mobile phone, a tablet computer, or other devices with processing functions), a computer terminal, or the like. The present embodiment is described by taking an operation on a mobile terminal as an example, and fig. 16 is a schematic diagram of a hardware structure of a mobile terminal for implementing an uplink control information sending method according to an embodiment of the present invention. As shown in fig. 16, the terminal device 160 may include one or more (only one shown) processors 162 (the processors 162 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 164 for storing data, and a data transceiver 166 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 16 is merely illustrative and is not intended to be a single limitation on the structure of the base station. For example, the terminal device 160 may also include more or fewer components than shown in fig. 16 or have a different configuration than shown in fig. 16 by splitting or combining the above functions.

The memory 164 may be used to store software programs and modules of application software, and program instructions/modules corresponding to the data transmission method disclosed in the foregoing embodiments may be stored in the memory 164, which has been described in detail in the foregoing embodiments with respect to the data transmission method, so that this embodiment will not be repeated in detail.

The processor 162 executes various functional applications and data processing by executing software programs and modules stored in the memory 164, thereby implementing the above-described method. The memory 164 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 164 may further include memory remotely located from processor 162 (cloud storage), which may be connected to mobile terminal 160 over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The data transceiver 166 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 160. In one example, data transceiver 166 includes a Network adapter (NIC) that may be coupled to other Network devices via a base station to communicate with the internet. In one example, the data transceiver 166 may be a Radio Frequency (RF) module, which is used to communicate with the internet by wireless.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

Claims

1. A method of data transmission, comprising:

a base station sends configuration information to a terminal, wherein the configuration information at least comprises:

transmitting indication information of a time-frequency resource, indication information of a transmission signal generation method, and demodulation-dedicated pilot indication information on the time-frequency resource;

wherein, the indication information of the transmission time-frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource;

the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on the first transmission time-frequency resource and the second transmission time-frequency resource;

the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource;

the indication information of the transmission signal generation method at least comprises indication information of a coding modulation mode, and/or at least one of the following indication information sets:

A set of weighting factor information for modulation symbols on the first transmission time-frequency resource and weighting factor information for modulation symbols on the second transmission time-frequency resource.

2. The method of claim 1, wherein the indication information of demodulation-specific pilots on the transmission time-frequency resource indicates demodulation-specific pilots of the first transmission time-frequency resource and demodulation-specific pilots of the second transmission time-frequency resource.

3. The method of claim 1, wherein the indication of the demodulation-specific pilot for the second transmission time-frequency resource comprises:

and indicating the second transmission time-frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time-frequency resource, or generating the demodulation special pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time-frequency resource and the indication information of the first transmission time-frequency resource.

4. The method of claim 1, wherein the information indicating the dedicated demodulation pilots on the transmission time-frequency resource comprises:

the indication information of the demodulation dedicated pilot on the second transmission time frequency resource is more than that of the demodulation dedicated pilot on the first transmission time frequency resource.

5. The method according to claim 4, wherein the demodulation-dedicated pilots on the second transmission time-frequency resource are at least one times as many demodulation-dedicated pilots on the first transmission time-frequency resource, and the indication information of the demodulation-dedicated pilots on the transmission time-frequency resource comprises multiple indication information between the number of demodulation-dedicated pilots on the second transmission time-frequency resource and the number of the first transmission time-frequency resource.

6. The method according to claim 1, wherein transmitting information indicative of a manner of generating signals on the second transmission time-frequency resource comprises:

information indicating that a modulation symbol on the second transmission time-frequency resource is a full or partial repetition of a modulation symbol on the first transmission time-frequency resource.

7. The method of claim 1, wherein the weighting factor takes the value from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

8. The method of claim 1,

assigning a weighting factor for modulating symbols on the second transmission time-frequency resource through a sequence, or assigning a weighting factor for modulating symbols on the first transmission time-frequency resource and a weighting factor for modulating symbols on the second transmission time-frequency resource through a sequence, where the configuration information includes information of the sequence.

9. The method according to claim 8, wherein the sequence is a sequence in a sequence set, and the weighting factor for the modulation symbols on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or the weighting factor for the modulation symbols on the first transmission time-frequency resource and the weighting factor for the modulation symbols on the second transmission time-frequency resource are configured by configuring a weighting factor in the sequence set, and the configuration information includes the index of the sequence in the sequence set.

10. The method according to claim 8 or 9, wherein the sequences and the values of the elements of all sequences in the set of sequences are taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

11. The method of claim 9, wherein the sequence set comprises at least one of the following sequence sets and a sequence set formed by processing the following sequence sets;

wherein, processing the following sequence sets comprises: multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by 1, i, -1 or-i or multiplying by the power A of i; or,

performing phase adjustment or rotation of W multiplied by pi or multiplied by exp (i multiplied by W multiplied by pi) on each sequence or the Xth sequence element of each sequence in the following sequence set; or,

Multiplying each sequence or the Xth sequence element of each sequence in the following sequence set by a specified value or multiplying each sequence by the specified value respectively;

wherein i is an imaginary unit, i is sqrt (-1), X is an integer greater than or equal to 1 and less than or equal to the sequence length, a is an integer, and W is a real number;

the sequence set 3 comprises 16 sequences with a length of 3, wherein the first sequence is [1, 1, 1], the second sequence is [1, -1, -1], the third sequence is [ -1, 1, -1], the fourth sequence is [ -1, -1, 1], the fifth sequence is [1, i, -i ], the sixth sequence is [ 1-i, i ], the seventh sequence is [ -1, i, i ], the eighth sequence is [ -1, -i, -i ], the ninth sequence is [ i, 1, -i ], the tenth sequence is [ i, -1, i ], the eleventh sequence is [ -i, 1, i ], the twelfth sequence is [ -i, -1, -i ], the thirteenth sequence is [ i, i, -1], the fourteenth sequence is [ i, -i, 1], a fifteenth sequence of [ -i, i, 1], a sixteenth sequence of [ -i, -i, -1 ];

A set of sequences 4 comprising 16 sequences of length 3, wherein the first sequence is [1, 1, -1], the second sequence is [1, -1, 1], the third sequence is [ -1, 1, 1], the fourth sequence is [ -1, -1, -1], the fifth sequence is [1, i, i ], the sixth sequence is [1, -i, -i ], the seventh sequence is [ -1, i, -i ], the eighth sequence is [ -1, -i, i ], the ninth sequence is [ i, 1, i ], the tenth sequence is [ i, -1, -i ], the eleventh sequence is [ -i, 1, -i ], the twelfth sequence is [ -i, -1, i ], the thirteenth sequence is [ i, i, 1], the fourteenth sequence is [ i, -i, -1] with a fifteenth sequence of [ -i, i, -1] and a sixteenth sequence of [ -i, -i, 1 ];

a sequence set 7 comprising 32 sequences of length 3, wherein the first sequence is [1, 1, 1], the second sequence is [ i, -1, -i ], the third sequence is [ -1, 1, -1], the fourth sequence is [ -i, -1, i ], the fifth sequence is [1, i, -i ], the sixth sequence is [ i, -i, -1], the seventh sequence is [ -1, i, i ], the eighth sequence is [ -i, -i, 1], the ninth sequence is [ i, 1, -i ], the tenth sequence is [ -1, -1, -1], the eleventh sequence is [ -i, 1, i ], the twelfth sequence is [1, -1, 1], the thirteenth sequence is [ i, i, -1], the fourteenth sequence is [ -1, -i, i ], a fifteenth sequence of [ -i, i, 1], a sixteenth sequence of [1, -i, -i ], a seventeenth sequence of [1, 1, -1], an eighteenth sequence of [ i, -1, i ], a nineteenth sequence of [ -1, 1, 1], a twentieth sequence of [ -i, -1, -i ], a twenty-first sequence of [1, i, i ], a twenty-second sequence of [ i, -i, 1], a twenty-third sequence of [ -1, i, -i ], a twenty-fourth sequence of [ -i, -i, -1], a twenty-fifth sequence of [ i, 1, i ], a twenty-sixth sequence of [ -1, -1, 1], a twenty-seventh sequence of [ -i, 1, -i ], a twenty-eighth sequence of [1, -1, -1], a twenty-ninth sequence of [ i, i, 1], a thirty-eighth sequence of [ -1, -i, -i ], a thirty-eighth sequence of [ -i, i, -1], a thirty-seventh sequence of [1, -i, i ];

A set of sequences 8 comprising 32 sequences of length 3, wherein the first sequence is [1, 1, i ], the second sequence is [ i, -1, 1], the third sequence is [ -1, 1, -i ], the fourth sequence is [ -i, -1, -1], the fifth sequence is [1, i, 1], the sixth sequence is [ i, -i, -i ], the seventh sequence is [ -1, i, -1], the eighth sequence is [ -i, -i, i ], the ninth sequence is [ i, 1, 1], the tenth sequence is [ -1, -1, -i ], the eleventh sequence is [ -i, 1, -1], the twelfth sequence is [1, -1, i ], the thirteenth sequence is [ i, i, -i ], the fourteenth sequence is [ -1, -i, -1, the fifteenth sequence being [ -i, i, i ], the sixteenth sequence being [1, -i, 1], the seventeenth sequence being [1, 1, -i ], the eighteenth sequence being [ i, -1, -1], the nineteenth sequence being [ -1, 1, i ], the twentieth sequence being [ -i, -1, 1], the twenty-first sequence being [1, i, -1], the twenty-second sequence being [ i, -i, i ], the twenty-third sequence being [ -1, i, 1], the twenty-fourth sequence being [ -i, -i, -i ], the twenty-fifth sequence being [ i, 1, -1], the twenty-sixth sequence being [ -1, -1, i ], the twenty-seventh sequence being [ -i, 1, 1], the twenty-eighth sequence being [ 1], -1, -i ], the twenty ninth sequence is [ i, i, i ], the thirty th sequence is [ -1, -i, 1], the thirty eleventh sequence is [ -i, i, -i ], the thirty second sequence is [1, -i, -1 ];

A set of sequences 9 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, 1], the second sequence is [1, 1, -1, -1], the third sequence is [1, -1, 1, -1], the fourth sequence is [1, -1, -1, 1], the fifth sequence is [1, 1, i, -i ], the sixth sequence is [1, 1, -i, i ], the seventh sequence is [1, -1, i, i ], the eighth sequence is [1, -1, -i, -i ], the ninth sequence is [1, i, 1, -i ], the tenth sequence is [1, i, -1, i ], the eleventh sequence is [1, -i, 1, i ], the twelfth sequence is [1, -i, -1, -i ], the thirteenth sequence is [1, i, i, -1], the fourteenth sequence is [1, i, -i, 1], the fifteenth sequence is [1, -i, i, 1], the sixteenth sequence is [1, -i, -i, -1 ];

A set of sequences 11 comprising 16 sequences of length 4, wherein the first sequence is [1, 1, 1, i ], the second sequence is [1, 1, -1, -i ], the third sequence is [1, -1, 1, -i ], the fourth sequence is [1, -1, -1, i ], the fifth sequence is [1, 1, i, 1], the sixth sequence is [1, 1, -i, -1], the seventh sequence is [1, -1, i, -1], the eighth sequence is [1, -1, -i, 1], the ninth sequence is [1, i, 1, 1], the tenth sequence is [1, i, -1, -1, 1], the eleventh sequence is [1, -i, 1, -1], the twelfth sequence is [1, -i, -1, 1], the thirteenth sequence is [1, i, i, -i ], the fourteenth sequence is [1, i, -i, i ], the fifteenth sequence is [1, -i, i, i ], the sixteenth sequence is [1, -i, -i, -i ];

The sequence set 14 comprises 32 sequences with a length of 4, wherein the first sequence is [1, 1, 1, i ], the second sequence is [1, i, -1, 1], the third sequence is [1, -1, 1, -i ], the fourth sequence is [1, -i, -1, -1], the fifth sequence is [1, 1, i, 1], the sixth sequence is [1, i, -i, -i ], the seventh sequence is [1, -1, i, -1], the eighth sequence is [1, -i, -i, i ], the ninth sequence is [1, i, 1, 1], the tenth sequence is [1, -1, -1, -i ], the eleventh sequence is [1, -i, 1, -1], the twelfth sequence is [1, 1, -1, i ], the thirteenth sequence is [1, i, i, -i ], the fourteenth sequence is [1, -1, -i, -1], the fifteenth sequence is [1, -i, i, i ], the sixteenth sequence is [1, 1, -i, 1], the seventeenth sequence is [1, 1, 1, -i ], the eighteenth sequence is [1, i, -1, -1], the nineteenth sequence is [1, -1, 1, i ], the twentieth sequence is [1, -i, -1, 1], the twenty-first sequence is [1, 1, i, -1], the twenty-second sequence is [1, i, -i, i ], the twenty-third sequence is [1, -1, i, 1], the twenty-fourth sequence is [1, -i, -i, -i ], the twenty-fifth sequence is [1, i, 1, -1, the twenty-sixth sequence is [1, -1, -1, i ], the twenty-seventh sequence is [1, -i, 1, 1], the twenty-eighth sequence is [1, 1, -1, -i ], the twenty-ninth sequence is [1, i, i, i ], the thirty-fifth sequence is [1, -1, -i, 1], the thirty-eleventh sequence is [1, -i, i, -i ], the thirty-second sequence is [1, 1, -i, -1 ];

A set of sequences 15 comprising 16 sequences of length 5, wherein the first sequence is [1, 1, 1, 1, 1], the second sequence is [1, 1, 1, -1, -1], the third sequence is [1, 1, -1, 1, -1], the fourth sequence is [1, 1, -1, -1, 1, 1], the fifth sequence is [1, -1, 1, 1, -1], the sixth sequence is [1, -1, 1, 1], the seventh sequence is [1, -1, -1, 1, 1], the eighth sequence is [1, -1, -1, 1], the ninth sequence is [ -1, 1, 1, 1, -1], the tenth sequence is [ -1, 1, 1, -1, 1], the eleventh sequence is [ -1, 1, -1, 1, 1, the twelfth sequence is [ -1, 1, -1, -1, -1], the thirteenth sequence is [ -1, -1, 1, 1, 1], the fourteenth sequence is [ -1, -1, 1, -1, -1], the fifteenth sequence is [ -1, -1, -1, 1, -1], the sixteenth sequence is [ -1, -1, -1, 1, 1 ];

a set of sequences 16 comprising 16 sequences of length 6, wherein the first sequence is [1, 0, 1, 0, 1, 0], the second sequence is [ -1, 0, 1, 0, -1, 0], the third sequence is [1, 0, -1, 0, -1, 0], the fourth sequence is [ -1, 0, -1, 0, 1, 0], the fifth sequence is [1, 0, 0, 1, 0, 1], the sixth sequence is [ -1, 0, 0, 1, 0, -1], the seventh sequence is [1, 0, 0, -1, 0, -1, 0, -1], the eighth sequence is [ -1, 0, 0, -1, 0, 1], the ninth sequence is [0, 1, 0, 0, 1], the tenth sequence is [0, -1, 1, 0, 0, -1], the eleventh sequence is [ 0], 1, -1, 0, 0, -1, the twelfth sequence is [0, -1, -1, 0, 0, 1], the thirteenth sequence is [0, 1, 0, 1, 1, 0], the fourteenth sequence is [0, -1, 0, 1, -1, 0], the fifteenth sequence is [0, 1, 0, -1, 1, 0], the sixteenth sequence is [0, -1, 0, -1, 1, 0 ];

A sequence set 17 comprising 16 sequences of length 6, wherein the first sequence is [1, 1, 1, 0, 0, 0], the second sequence is [ -1, 1, -1, 0, 0, 0], the third sequence is [1, -1, -1, 0, 0, 0], the fourth sequence is [ -1, -1, 1, 0, 0, 0], the fifth sequence is [0, 0, 1, 1, 1, 0], the sixth sequence is [0, 0, -1, -1, 1, 0], the seventh sequence is [0, 0, -1, 1, -1, 0], the eighth sequence is [0, 0, 1, -1, -1, 0], the ninth sequence is [1, 0, 0, 0, 1, 1], the tenth sequence is [1, 0, 0, 1, -1], the eleventh sequence is [ 1], 0, 0, 0, -1, wherein the twelfth sequence is [ -1, 0, 0, 0, -1, 1], the thirteenth sequence is [0, 1, 0, 1, 0, 1], the fourteenth sequence is [0, 1, 0, -1, 0, -1], the fifteenth sequence is [0, -1, 0, 1, 0, -1], the sixteenth sequence is [0, -1, 0, -1, 0, 0, 1 ];

12. The method of claim 1, wherein a transmission time corresponding to the first transmission time-frequency resource is the same as a transmission time corresponding to the second transmission time-frequency resource, wherein a transmission time slot corresponding to the first transmission time-frequency resource is the same as a TTI corresponding to the second transmission time-frequency resource, and wherein a frame number corresponding to the first transmission time-frequency resource is the same as a frame number corresponding to the second transmission time-frequency resource.

13. The method of claim 1, wherein a transmission time corresponding to the first transmission time-frequency resource is different from a transmission time corresponding to the second transmission time-frequency resource, or a transmission time slot TTI corresponding to the first transmission time-frequency resource is different from a TTI corresponding to the second transmission time-frequency resource, or a frame number corresponding to the first transmission time-frequency resource is different from a frame number corresponding to the second transmission time-frequency resource.

14. The method of claim 1, wherein the first transmission time-frequency resource and the second transmission time-frequency resource are the same size.

15. The method of claim 1, wherein the first transmission time-frequency resource and the second transmission time-frequency resource are different sizes.

16. The method of claim 1, wherein the configuration information is semi-persistent scheduling (SPS) information, and wherein the configuration information further indicates that the terminal transmits data at a preset starting transmission time and a preset transmission period within a preset time period.

17. A method of data transmission, comprising:

a terminal receives configuration information sent by a base station, wherein the configuration information at least comprises:

transmitting indication information of a time-frequency resource, indication information of a transmission signal generation method and indication information of a demodulation dedicated pilot frequency on the time-frequency resource;

Generating a transmission signal according to the indication information of the transmission signal generation method;

inserting corresponding demodulation special pilot frequency into the transmission signal according to the indication information of the demodulation special pilot frequency;

mapping the transmission signal inserted with the demodulation special pilot frequency to the time frequency positions of the first transmission time frequency resource and the second transmission time frequency resource according to the configuration information;

18. The method of claim 17,

the generating of the transmission signal according to the indication information of the transmission signal generating method includes:

and according to the indication information of the code modulation mode and/or the weighting factor information, code modulation generates modulation symbols on the first transmission time-frequency resource and modulation symbols on the second transmission time-frequency resource, and/or the terminal weights corresponding weighting factors for the modulation symbols on the first transmission time-frequency resource and/or the modulation symbols on the second transmission time-frequency resource according to the indication information of the code modulation mode and/or the weighting factor information.

19. The method according to claim 17, wherein the indication information of demodulation dedicated pilots on the transmission time-frequency resource indicates demodulation dedicated pilots of the first transmission time-frequency resource and demodulation dedicated pilots of the second transmission time-frequency resource.

20. The method of claim 17, wherein the indication of the demodulation-specific pilot for the second transmission time-frequency resource comprises:

and indicating the second transmission time-frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time-frequency resource, or generating the demodulation special pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time-frequency resource.

21. The method of claim 17, wherein the information indicating the demodulation-dedicated pilots on the transmission time-frequency resource comprises:

22. The method of claim 21, wherein the demodulation-dedicated pilots on the second transmission time-frequency resource are at least one times as many demodulation-dedicated pilots on the first transmission time-frequency resource, and wherein the indication information of the demodulation-dedicated pilots on the transmission time-frequency resource comprises indication information of a multiple between the number of demodulation-dedicated pilots on the second transmission time-frequency resource and the number of the first transmission time-frequency resource.

23. The method according to claim 18, wherein transmitting information indicative of a manner of generating signals on the second transmission time-frequency resource comprises:

information indicating that a modulation symbol on the second transmission time-frequency resource is a full repetition or a partial repetition of a modulation symbol on the first transmission time-frequency resource;

24. The method of claim 18, wherein the weighting factor takes the value from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

25. The method of claim 18,

assigning a weighting factor for modulating symbols on the second transmission time-frequency resource through a sequence, or assigning a weighting factor for modulating symbols on the first transmission time-frequency resource and a weighting factor for modulating symbols on the second transmission time-frequency resource through a sequence, wherein the configuration information comprises information of the sequence;

determining a sequence according to sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is extended by using the sequence, or forming a transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

26. The method according to claim 25, wherein the sequence is a sequence in a sequence set, and the weighting factor specifying the modulation symbols on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or the weighting factor specifying the modulation symbols on the first transmission time-frequency resource and the weighting factor specifying the modulation symbols on the second transmission time-frequency resource are configured, and the configuration information includes the index of the sequence in the sequence set;

and the terminal determines a sequence from the sequence set known by the terminal according to the index of the sequence in the sequence set, which is contained in the configuration information, and forms a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is spread by using the sequence, or forms a transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

27. The method according to claim 25 or 26, wherein the sequences and the values of the elements of all sequences in the set of sequences are taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

28. The method of claim 27, wherein the configuration information is SPS information, and the configuration information further indicates that the terminal transmits data at a preset starting transmission time and a preset transmission period within a preset time period;

and generating a transmission signal according to the SPS information, and transmitting data at the preset starting transmission time and the preset transmission period in the preset time period.

29. A method of demodulating data, comprising:

a base station receives data sent by a terminal, and identifies the terminal through a demodulation special pilot frequency in the data;

demodulating data on a first transmission time-frequency resource;

reconstructing and eliminating successfully decoded data on the first transmission time-frequency resource, and reconstructing and eliminating data on a second transmission time-frequency resource corresponding to the successfully decoded data;

and demodulating the remaining data in the first transmission time-frequency resource and the second transmission time-frequency resource according to a symbol weighting factor on the first transmission time-frequency resource and a symbol weighting factor on the second transmission time-frequency resource preset in configuration information, or according to a sequence of the symbol weighting factor of the first transmission time-frequency resource and the symbol weighting factor of the second transmission time-frequency resource preset in the configuration information, wherein the preset symbol weighting factors are used for separating data of different terminals.

30. The method of claim 29, wherein the configuration information comprises:

a demodulation dedicated pilot of the first transmission time-frequency resource and a demodulation dedicated pilot of the second transmission time-frequency resource;

or, the configuration information indicates that the second transmission time-frequency resource directly multiplexes the demodulation dedicated pilot of the first transmission time-frequency resource, or, generates the demodulation dedicated pilot of the second transmission time-frequency resource through the indication information of the demodulation dedicated pilot of the first transmission time-frequency resource and the indication information of the first transmission time-frequency resource;

or, the configuration information indicates that the modulation symbols on the second transmission time-frequency resource are all or part of the repetitions of the modulation symbols on the first transmission time-frequency resource.

31. A data transmission apparatus, comprising:

a sending module, configured to send configuration information to a terminal through a base station, where the configuration information at least includes:

wherein, the indication information of the transmission time-frequency resource comprises:

Indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource;

the indication information of the transmission signal generation method comprises the following steps:

transmitting indication information of a signal generation method on the first transmission time-frequency resource and the second transmission time-frequency resource;

the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises:

indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource;

32. The apparatus of claim 31, wherein the indication of demodulation-specific pilots on the transmission time-frequency resource configures demodulation-specific pilots for the first transmission time-frequency resource and demodulation-specific pilots for the second transmission time-frequency resource.

33. The apparatus of claim 31, wherein the indication information of the demodulation dedicated pilot for the second transmission time-frequency resource comprises: and indicating the second transmission time-frequency resource to directly multiplex the demodulation special pilot frequency of the first transmission time-frequency resource, or generating the demodulation special pilot frequency of the second transmission time-frequency resource through the indication information of the demodulation special pilot frequency of the first transmission time-frequency resource and the indication information of the first transmission time-frequency resource.

34. The apparatus of claim 31, wherein the information indicative of the manner in which signals are generated for the second transmission time-frequency resource comprises at least:

information indicating that a modulation symbol on the second transmission time-frequency resource is a full repetition or a partial repetition of a modulation symbol on the first transmission time-frequency resource.

35. The apparatus of claim 32, wherein the weighting factor is selected from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

36. The apparatus of claim 31, wherein the weighting factors for modulating symbols on the second transmission time-frequency resource are specified by a sequence, or wherein the weighting factors for modulating symbols on the first transmission time-frequency resource and the weighting factors for modulating symbols on the second transmission time-frequency resource are specified by a sequence, and wherein the configuration information comprises information of the sequence.

37. The apparatus of claim 36, wherein the sequence is a sequence in a sequence set, and wherein a weighting factor specifying a modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or a weighting factor specifying a modulation symbol on a first transmission time-frequency resource and a weighting factor specifying a modulation symbol on a second transmission time-frequency resource are configured, and wherein the index of the sequence in the sequence set is included in the configuration information.

38. The apparatus according to claim 36 or 37, wherein the sequences and the values of the elements of all sequences in the set of sequences are taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

39. The apparatus of claim 31, wherein the configuration information is SPS information, and wherein the configuration information further indicates that the terminal transmits data at a preset starting transmission time and a preset transmission period within a preset time period.

40. A data transmission apparatus, comprising:

a receiving module, configured to receive, by a terminal, configuration information sent by a base station, where the configuration information at least includes:

transmitting indication information of a time-frequency resource, indication information of a transmission signal generation method and indication information of a demodulation dedicated pilot frequency on the time-frequency resource; wherein, the indication information of the transmission time-frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource;

the indication information of the transmission signal generation method comprises the following steps: transmitting indication information of a signal generation method on the first transmission time-frequency resource and the second transmission time-frequency resource; the indication information of the demodulation dedicated pilot on the transmission time-frequency resource comprises: indication information of demodulation dedicated pilots on the first transmission time-frequency resource and the second transmission time-frequency resource;

The generating module is used for generating a transmission signal according to the indication information of the transmission signal generating method;

the pilot frequency inserting module is used for inserting the corresponding demodulation special pilot frequency into the transmission signal according to the indication information of the demodulation special pilot frequency;

a mapping module, configured to map, according to the configuration information, the transmission signal with the dedicated demodulation pilot inserted therein to the time-frequency positions of the first transmission time-frequency resource and the second transmission time-frequency resource;

41. The apparatus of claim 40,

the generation module is specifically configured to: and according to the indication information of the coded modulation mode and/or the weighting factor information, code modulation generates modulation symbols on the first transmission time-frequency resource and modulation symbols on the second transmission time-frequency resource, and/or the terminal weights corresponding weighting factors for the modulation symbols on the first transmission time-frequency resource and/or the modulation symbols on the second transmission time-frequency resource according to the indication information of the coded modulation mode and/or the weighting factor information.

42. The apparatus of claim 40, wherein the indication of demodulation-specific pilots on the transmission time-frequency resource configures demodulation-specific pilots for a first transmission time-frequency resource and demodulation-specific pilots for a second transmission time-frequency resource.

43. The apparatus of claim 40, wherein the indication information of the dedicated demodulation pilot for the second transmission time-frequency resource comprises:

44. The apparatus according to claim 41, wherein transmitting information indicative of a manner of signal generation on the second transmission time-frequency resource comprises:

the generation module is specifically configured to:

45. The apparatus of claim 41, wherein the weighting factor takes the value from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

46. The apparatus of claim 41,

the generation module is specifically configured to:

47. The apparatus of claim 46, wherein the sequence is a sequence in a sequence set, and wherein a weighting factor specifying a modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or a weighting factor specifying a modulation symbol on the first transmission time-frequency resource and a weighting factor specifying a modulation symbol on the second transmission time-frequency resource are configured, and wherein the configuration information includes an index of the sequence in the sequence set;

The generation module is specifically configured to: determining a sequence according to sequence information contained in the configuration information, and forming a transmission symbol on the second transmission time-frequency resource after the generated modulation symbol is extended by using the sequence, or forming a transmission symbol on the first transmission time-frequency resource and the second transmission time-frequency resource.

48. The apparatus of claim 46 or 47, wherein the sequences and the values of the elements of all the sequences in the set of sequences are taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

49. The apparatus of claim 48, wherein the configuration information is semi-persistent scheduling (SPS) information, and wherein the configuration information further indicates that the terminal transmits data at a preset starting transmission time and a preset transmission period within a preset time period;

the generation module is specifically configured to:

50. A data demodulation apparatus, comprising:

a receiving module, configured to receive data sent by a terminal, and identify the terminal through a demodulation dedicated pilot in the data;

The first demodulation module is used for demodulating data on the first transmission time-frequency resource;

the reconstruction module is used for reconstructing and eliminating the successfully decoded data on the first transmission time-frequency resource and reconstructing and eliminating the data on a second transmission time-frequency resource corresponding to the successfully decoded data;

and the second demodulation module is used for demodulating the remaining data in the first transmission time-frequency resource and the remaining data in the second transmission time-frequency resource according to a symbol weighting factor on the first transmission time-frequency resource and a symbol weighting factor on the second transmission time-frequency resource preset in configuration information, or according to a sequence of the symbol weighting factor of the first transmission time-frequency resource and the symbol weighting factor of the second transmission time-frequency resource preset in the configuration information, wherein the preset symbol weighting factors are used for separating the data of different terminals.

51. The apparatus of claim 50, wherein the configuration information comprises:

52. A terminal comprising a processor and a memory storing processor-executable instructions and storing a set of sequences, the instructions when executed by the processor perform the following:

receiving configuration information sent by a base station through a terminal, wherein the configuration information at least comprises:

transmitting indication information of a time-frequency resource, transmitting indication information of a signal generation method and indicating information of a demodulation dedicated pilot frequency on the time-frequency resource; wherein, the indication information of the transmission time-frequency resource comprises: indication information of a first transmission time-frequency resource and indication information of a second transmission time-frequency resource;

inserting corresponding demodulation dedicated pilot frequency in the transmission signal according to the indication information of the demodulation dedicated pilot frequency;

mapping the transmission signal inserted with the demodulation special pilot frequency to the time frequency positions of the first transmission time frequency resource and the second transmission time frequency resource according to the configuration information; the indication information of the transmission signal generation method at least comprises indication information of a coding modulation mode, and/or at least one of the following indication information sets:

53. The terminal of claim 52, wherein the indication information of the dedicated demodulation pilots on the transmission time frequency resource configures the dedicated demodulation pilots for the first transmission time frequency resource and the dedicated demodulation pilots for the second transmission time frequency resource.

54. The terminal of claim 52, wherein the indication information of the dedicated demodulation pilot for the second transmission time-frequency resource comprises:

55. The terminal of claim 52, wherein the information indicative of the manner in which signals are generated for transmission on the second transmission time-frequency resource at least comprises:

56. The terminal of claim 52, wherein the weighting factors take on values from a set {1, -1, j, -j } or a set {1, -1, j, -j,0 }.

57. The terminal of claim 52,

and assigning a weighting factor for modulating symbols on the second transmission time-frequency resource through a sequence, or assigning a weighting factor for modulating symbols on the first transmission time-frequency resource and a weighting factor for modulating symbols on the second transmission time-frequency resource through a sequence, wherein the configuration information comprises information of the sequence.

58. The terminal according to claim 57, wherein the sequence is a sequence in a sequence set, and wherein a weighting factor specifying a modulation symbol on the second transmission time-frequency resource is configured by configuring an index in the sequence set, or a weighting factor specifying a modulation symbol on a first transmission time-frequency resource and a weighting factor specifying a modulation symbol on a second transmission time-frequency resource are configured, and wherein the configuration information includes the index of the sequence in the sequence set.

59. A terminal as claimed in claim 57 or 58, characterised in that the sequences and the values of the elements of all the sequences in the set of sequences are taken from the set {1, -1, j, -j } or the set {1, -1, j, -j,0 }.

60. The terminal of claim 52, wherein the configuration information is semi-persistent scheduling (SPS) information, and wherein the configuration information further indicates that the terminal transmits data at a preset starting transmission time and a preset transmission period within a preset time period.