CN109391412B

CN109391412B - Uplink control information transmission method and device

Info

Publication number: CN109391412B
Application number: CN201710682646.6A
Authority: CN
Inventors: 尹稳山; 陈亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-10
Filing date: 2017-08-10
Publication date: 2022-02-25
Anticipated expiration: 2037-08-10
Also published as: CN109391412A

Abstract

The application discloses an uplink control information transmission method and device, which are applied to the technical field of communication and are used for solving the technical problem that resource scheduling delay on a Uu port does not meet service requirements. The method comprises the following steps: the terminal acquires indication information sent by the base station, wherein the indication information is used for indicating resource information required by the terminal for sending the short SR signal; the short SR signal occupies 7 symbols, the 7 symbols including 4 data symbols and 3 reference signal symbols; the terminal determines 7 symbols from the uplink subframe corresponding to the SR signal according to the indication information, and determines orthogonal code words corresponding to the 7 symbols and resource positions corresponding to the 7 symbols; and the terminal configures the short SR signal according to the 7 symbols and the orthogonal code words corresponding to the 7 symbols and sends the short SR signal at the resource positions corresponding to the 7 symbols. Compared with the traditional SR, the time delay and the time delay jitter caused by each user scheduling period can be reduced by one time, and the number of users simultaneously sending the SR in one PRB is increased by one time.

Description

Uplink control information transmission method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting uplink control information.

Background

In Long Term Evolution (LTE), if a User Equipment (UE) does not have uplink data to transmit, an Evolved base station or Node B (eNodeB) does not need to allocate uplink resources to the UE, otherwise, resource waste is caused, and therefore, when the UE does not have available uplink resources, the eNodeB is notified that uplink data needs to be transmitted, and the eNodeB allocates uplink resources to the UE. The UE notifies the eNodeB that there is uplink data to transmit by sending an uplink Scheduling Request (SR) to the eNodeB. And after the UE has a high-level service packet reaching the sending buffer and obtains the time-frequency resource which can be used for sending the SR, the UE sends an SR request to the eNodeB. The method comprises the steps that SR resources are configured to UE by an eNodeB, the eNodeB allocates a special SR resource for each UE, the SR resources are periodic, each n subframe appears once, one UE only occupies one SR resource on one uplink subframe in one period, the SR resources and the UE have one-to-one correspondence, and the eNodeB knows which UE requests the uplink resources through the time-frequency position of the SR resources.

Each user's SR Resource occupies one Physical Resource Block (PRB), and taking TDD ratio 2 as an example, one PRB can simultaneously accommodate 36 users to transmit SRs by using cyclic shift, orthogonal code, and scrambling code. Taking TDD ratio 2 as an example, assume that the system has only one PRB available for resource scheduling. Because one PRB can accommodate 36 users, when the number of system users is not greater than 36, the scheduling period of each user is 5 Transmission Time Interval (TTI); when the number of the system users is greater than 36 and not greater than 72, the scheduling period of each user is 10TTI, therefore, under the condition that the available time-frequency resources are fixed and the time-frequency resources among the users are not conflicted, the more the number of the system users is, the longer the SR scheduling period of the user is, the longer the SR period is, and the larger the resource scheduling delay consumed on the Uu port is.

In the field of road traffic, the requirement of traffic information sharing on the real-time performance of traffic safety information is very high, an eNodeB can issue the traffic safety information to a vehicle-mounted terminal through a traditional Uu port, or after the vehicle-mounted terminal applies resources to the eNodeB through the Uu port, the vehicle-mounted terminals issue the traffic safety information mutually, and in order to reduce information transmission delay, the resource scheduling delay on the Uu port needs to be reduced. In the field of road traffic, the protocol provides that the time delay from the arrival of a service data packet to the transmission of the service data packet is not more than 20 ms. In order to meet the requirement of the time delay, under the condition of not increasing resource conflicts among users, the resource scheduling time delay consumed on the Uu port needs to be reduced.

In summary, in the prior art, as the user capacity increases, the resource scheduling delay consumed on the Uu port increases, so that the resource scheduling delay on the Uu port does not meet the service requirement.

Disclosure of Invention

The application provides an uplink control information transmission method and device, which are used for solving the technical problem that the resource scheduling delay consumed on a Uu port is increased along with the increase of user capacity in the prior art, so that the resource scheduling delay on the Uu port cannot meet the service requirement.

In a first aspect, an embodiment of the present application provides an uplink control information transmission method, where the method includes: a terminal acquires indication information sent by a base station, wherein the indication information is used for indicating resource information required by the terminal for sending a short Scheduling Request (SR) signal; the short SR signal occupies 7 symbols, the 7 symbols comprising 4 data symbols and 3 reference signal symbols; the terminal determines the 7 symbols from the uplink subframe corresponding to the SR signal according to the indication information; the terminal determines orthogonal code words corresponding to the 7 symbols and resource positions corresponding to the 7 symbols according to the indication information; and the terminal configures the short SR signal according to the 7 symbols and the orthogonal code words corresponding to the 7 symbols and sends the short SR signal on the resource positions corresponding to the 7 symbols.

In one possible design, the determining, by the terminal, the 7 symbols from the SR signal according to the indication information includes: the indication information further comprises positions of the 7 symbols on the uplink subframe, and the terminal determines the 7 symbols from the 14 symbols of the uplink subframe according to the positions of the 7 symbols on the uplink subframe.

In one possible design, the indication information includes orthogonal code words corresponding to the 7 symbols and resource locations corresponding to the 7 symbols.

In one possible design, the determining, by the terminal, the orthogonal code words corresponding to the 7 symbols according to the indication information includes: the terminal splits a group of orthogonal code words with the length of 14 into a first sub-group of orthogonal code words and a second sub-group of orthogonal code words according to the indication information, wherein the first sub-group of orthogonal code words and the second sub-group of orthogonal code words both comprise 7 orthogonal code words, and the group of orthogonal code words with the length of 14 is one of three pre-configured groups of orthogonal code words with the length of 14; allocating 7 orthogonal codewords contained in the first or second subset of orthogonal codewords to the 7 symbols.

In one possible design, the assigning 7 orthogonal codewords included in the first or second subset of orthogonal codewords to the 7 symbols includes: when the terminal determines that the terminal is of a first user category, 7 orthogonal code words in the first sub-group of orthogonal code words are allocated to the 7 symbols; and when the terminal determines that the terminal is of the second user category, allocating 7 orthogonal code words in the second sub-group of orthogonal code words to the 7 symbols.

In a possible design, the resource positions corresponding to the 7 symbols include mapping relationships between the 4 data symbols and subcarrier positions thereof on one physical resource block in different frequency hopping modes, and further include mapping relationships between the 3 reference signal symbols and subcarrier positions thereof on the physical resource block in different frequency hopping modes.

In a possible design, when the frequency hopping mode is inter-slot frequency hopping, the physical resource block occupies two slots, the two slots include 14 symbols, and each symbol corresponds to 12 subcarrier positions; when the terminal is of a first user category, 2 reference signal symbols in the 3 reference signal symbols are respectively mapped on 12 subcarriers of a 5 th symbol and a 10 th symbol of the physical resource block, 6 subcarriers of a 3 rd reference signal symbol in the 3 reference signal symbols are mapped on the last 6 subcarriers of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of an 11 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of the physical resource block; when the terminal is of a second user category, mapping 2 of the 3 reference signal symbols on 12 subcarriers of a 3 rd symbol and a 12 th symbol of the physical resource block; the 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the 4 th symbol of the physical resource block, the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the 11 th symbol of the physical resource block, and the 4 data symbols are mapped on the 12 subcarriers of the 1 st symbol, the 2 nd symbol, the 13 th symbol, and the 14 th symbol of the physical resource block.

In a possible design, when the frequency hopping mode is frequency hopping within a time slot, the physical resource block occupies 1 time slot, the 1 time slot includes 7 symbols, and each symbol corresponds to 12 subcarrier positions of an upper sideband and 12 subcarrier positions of a lower sideband; when the terminal is in a first user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of an upper sideband of a 3 rd symbol and 12 subcarriers of a lower sideband of a 5 th symbol of the physical resource block, 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the upper sideband of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the lower sideband of the 4 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol and 12 subcarriers of a lower sideband of a 7 th symbol of the physical resource block; when the terminal is in a second user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of a lower sideband of a 3 rd symbol and 12 subcarriers of an upper sideband of a 5 th symbol of the physical resource block, 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of a lower sideband of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of an upper sideband of the 4 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a lower sideband of a 1 st symbol, 12 subcarriers of a lower sideband of a 2 nd symbol, 12 subcarriers of an upper sideband of a 6 th symbol, and 12 subcarriers of an upper sideband of a 7 th symbol of the physical resource block.

In a possible design, when the frequency hopping mode is inter-slot frequency hopping, the physical resource block occupies two slots, the two slots include 14 symbols, and each symbol corresponds to 12 subcarrier positions; when the terminal is of a first user class, mapping the 3 reference signal symbols on 12 subcarriers of a 4 th symbol, a 5 th symbol and a 10 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of the physical resource block; when the terminal is of a second user category, mapping the 3 reference signal symbols on 12 subcarriers of a 3 rd symbol, an 11 th symbol and a 12 th symbol of the physical resource block; the 4 data symbols and the 3 reference signal symbols are mapped on 12 subcarriers of 1 st symbol, 2 nd symbol, 13 th symbol and 14 th symbol of the physical resource block.

In a possible design, when the frequency hopping mode is frequency hopping within a time slot, the physical resource block occupies 1 time slot, the 1 time slot includes 7 symbols, and each symbol corresponds to 12 subcarrier positions of an upper sideband and 12 subcarrier positions of a lower sideband; when the terminal is of a first user category, mapping the 3 reference signal symbols on 12 subcarriers of an upper sideband of a 3 rd symbol, 12 subcarriers of a lower sideband of a 4 th symbol and 12 subcarriers of a lower sideband of a 5 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol and 12 subcarriers of a lower sideband of a 7 th symbol of the physical resource block; when the terminal is of a second user category, the 3 reference signal symbols are on 12 subcarriers of a lower sideband of a 3 rd symbol, 12 subcarriers of an upper sideband of a 4 th symbol and 12 subcarriers of an upper sideband of a 5 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a lower sideband of a 1 st symbol, 12 subcarriers of a lower sideband of a 2 nd symbol, 12 subcarriers of an upper sideband of a 6 th symbol, and 12 subcarriers of an upper sideband of a 7 th symbol of the physical resource block.

In one possible design, when the identification number of the terminal is an odd number, the terminal is in the first user category, and when the identification number of the terminal is an even number, the terminal is in the second user category, or when the identification number of the terminal is an even number, the terminal is in the first user category, and when the identification number of the terminal is an odd number, the terminal is in the second user category.

In one possible design, the resource padding corresponding to the symbol positions of the uplink subframe except for the 7 symbols is 0.

In a second aspect, the present application provides an uplink control information transmission apparatus, including: the terminal comprises a processing unit and a sending unit, wherein the processing unit is used for acquiring indication information sent by a base station, and the indication information is used for indicating resource information required by the terminal for sending a short Scheduling Request (SR) signal; the short SR signal occupies 7 symbols, the 7 symbols comprising 4 data symbols and 3 reference signal symbols; determining the 7 symbols from an uplink subframe corresponding to the SR signal according to the indication information; according to the indication information, determining orthogonal code words corresponding to the 7 symbols and resource positions corresponding to the 7 symbols; configuring the short SR signal and transmitting the short SR signal on resource positions corresponding to the 7 symbols according to the 7 symbols and orthogonal code words corresponding to the 7 symbols, and instructing a transceiver unit to transmit the short SR signal on the resource positions; the transceiver unit is configured to transmit the short SR signal at the resource location.

In one possible design, the processing unit is specifically configured to: the indication information further comprises positions of the 7 symbols on the uplink subframe, and the 7 symbols are determined from 14 symbols of the uplink subframe according to the positions of the 7 symbols on the uplink subframe.

In one possible design, the processing unit is specifically configured to: splitting a group of orthogonal code words with the length of 14 into a first sub-group of orthogonal code words and a second sub-group of orthogonal code words according to the indication information, wherein the first sub-group of orthogonal code words and the second sub-group of orthogonal code words both comprise 7 orthogonal code words, and the group of orthogonal code words with the length of 14 is one of three pre-configured groups of orthogonal code words with the length of 14; allocating 7 orthogonal codewords contained in the first or second subset of orthogonal codewords to the 7 symbols.

In one possible design, the processing unit is specifically configured to: when the terminal is determined to be in the first user category, allocating 7 orthogonal code words in the first sub-group of orthogonal code words to the 7 symbols; and when the terminal is determined to be in the second user category, allocating 7 orthogonal code words in the second sub-group of orthogonal code words to the 7 symbols.

In a possible design, when the frequency hopping mode is inter-slot frequency hopping, the physical resource block occupies two slots, the two slots include 14 symbols, and each symbol corresponds to 12 subcarrier positions; when the terminal is in the first user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of a 5 th symbol and a 10 th symbol of the physical resource block, 6 subcarriers of a 3 rd reference signal symbol are mapped on a last 6 subcarriers of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on a first 6 subcarriers of an 11 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of the physical resource block; when the terminal is of a second user category, mapping 2 of the 3 reference signal symbols on 12 subcarriers of a 3 rd symbol and a 12 th symbol of the physical resource block; the 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the 4 th symbol of the physical resource block, the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the 11 th symbol of the physical resource block, and the 4 data symbols are mapped on the 12 subcarriers of the 1 st symbol, the 2 nd symbol, the 13 th symbol, and the 14 th symbol of the physical resource block.

In a possible design, when the frequency hopping mode is inter-slot frequency hopping, the physical resource block occupies two slots, the two slots include 14 symbols, and each symbol corresponds to 12 subcarrier positions; when the terminal is of a first user class, mapping the 3 reference signal symbols on 12 subcarriers of a 4 th symbol, a 5 th symbol and a 10 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of the physical resource block; when the terminal is of a second user category, the 3 reference signal symbols are mapped to resource positions corresponding to 12 subcarriers of a 3 rd symbol, an 11 th symbol and a 12 th symbol of the physical resource block; the 4 data symbols and the 3 reference signal symbols are mapped on 12 subcarriers of 1 st symbol, 2 nd symbol, 13 th symbol and 14 th symbol of the physical resource block.

In a possible design, when the frequency hopping mode is frequency hopping within a time slot, the physical resource block occupies 1 time slot, the 1 time slot includes 7 symbols, and each symbol corresponds to 12 subcarrier positions of an upper sideband and 12 subcarrier positions of a lower sideband; when the terminal is of a first user category, the 3 reference signal symbols are mapped on 12 subcarriers of an upper sideband of a 3 rd symbol, 12 subcarriers of a lower sideband of a 4 th symbol and 12 subcarriers of a lower sideband of a 5 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol and 12 subcarriers of a lower sideband of a 7 th symbol of the physical resource block; when the terminal is of a second user category, the 3 reference signal symbols are on 12 subcarriers of a lower sideband of a 3 rd symbol, 12 subcarriers of an upper sideband of a 4 th symbol and 12 subcarriers of an upper sideband of a 5 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a lower sideband of a 1 st symbol, 12 subcarriers of a lower sideband of a 2 nd symbol, 12 subcarriers of an upper sideband of a 6 th symbol, and 12 subcarriers of an upper sideband of a 7 th symbol of the physical resource block.

In a third aspect, an embodiment of the present application provides a terminal, where the terminal includes a memory, a transceiver, and a processor, where: the memory is used for storing instructions; the processor is configured to execute the instructions stored in the memory and control the transceiver to perform signal receiving and signal transmitting, and when the processor executes the instructions stored in the memory, the terminal is configured to perform any one of the methods of the first aspect or the first aspect.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a fifth aspect, embodiments of the present application provide a computer program product containing instructions that, when executed on a computer, cause the computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, the present application provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory, so as to implement the method in the first aspect and various possible designs of the first aspect.

In the above embodiment, according to the indication information of the base station, the short SR signal is configured and transmitted on the corresponding uplink subframe, because the short SR signal occupies 7 symbols, and for a given number of users and time-frequency resources, on the premise of ensuring that DA symbols and RS symbols of different users are respectively orthogonal to each other, the short SR signal occupies 14 symbols as compared with the conventional SR, the short SR can reduce time delay and time delay jitter caused by each user scheduling period by one time, and because 7 orthogonal codewords corresponding to 7 symbols, the remaining 7 orthogonal codewords of a group of orthogonal codewords having a length of 14 can be simultaneously allocated to a second user for use, it is only necessary to adopt time division and frequency division to ensure that SR signals are orthogonal between users, so that the number of users simultaneously transmitting SRs in one PRB can be doubled. Taking TDD scheme 2 as an example, suppose that the system has 72 users and only one PRB. Based on the conventional SR, the scheduling period of each user is 10 ms. Based on the short SR, the scheduling period for each of the 72 users is 5 ms. Based on the conventional SR, the system can only accommodate 36 LTE-V users. Based on the short SR, the system can accommodate 72 users.

Drawings

Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present application;

fig. 2 is a schematic diagram illustrating an influence result of the number of system users on an SR period according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating a resource mapping method of a conventional SR in the prior art;

fig. 4 is a flowchart illustrating a method for uplink control information transmission according to an embodiment of the present application;

fig. 5 is a schematic diagram of a short SR resource mapping method for inter-slot frequency hopping according to embodiment 1 of the present application;

fig. 6 is a schematic diagram of a short SR resource mapping method for frequency hopping within a timeslot according to embodiment 2 of the present application;

fig. 7 is a schematic diagram of a short SR resource mapping method for inter-slot frequency hopping according to embodiment 3 of the present application;

fig. 8 is a schematic diagram of a short SR resource mapping method for frequency hopping within a timeslot according to embodiment 4 of the present application;

fig. 9 is a schematic diagram illustrating a comparison between SR periods of a short SR when the number of system users exceeds 36 according to an embodiment of the present application and a conventional SR;

fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a data transmission device according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 schematically illustrates a system architecture applicable to the present application, where the system architecture is a system architecture of an LTE-based Vehicle terminal (LTE Vehicle, LTE-V) communication system, and is mainly applied to a communication scenario in which there is an eNodeB covering Vehicle-to-Vehicle communication (V2V), as shown in fig. 1. The related network elements comprise an eNodeB base station and a terminal, wherein the terminal is an LTE-V user, the LTE-V user sends a resource scheduling request SR to the eNodeB on a Uu port (an air interface between the base station and the terminal), the eNodeB distributes time-frequency resources which can be used for data transmission of a PC5 port for the user after receiving the SR from the LTE-V user, and the LTE-V user sends traffic safety information to other LTE-V users in a broadcasting mode on a PC5 port after obtaining the time-frequency resources of the PC5 port (a communication interface between vehicle-mounted terminals) authorized by the eNodeB. The application mainly relates to the problem of how to reduce the time delay of sending a resource Scheduling Request (SR) to an eNodeB by an LTE-V user on a Uu interface.

A base station may be a device that can communicate with the terminals. The base station may be any device having a wireless transceiving function. Including but not limited to: a base station (e.g., a base station NodeB, an evolved base station eNodeB, a base station in the fifth generation (5G) communication system, a base station or network device in a future communication system, an access node in a WiFi system, a wireless relay node, a wireless backhaul node), etc. The base station may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. The base station may also be a network device in a 5G network or a network device in a future evolution network; but also wearable devices or vehicle-mounted devices, etc. The base station may also be a small station, a Transmission Reference Point (TRP), or the like. Although the application is not so limited.

The terminal is a device with a wireless transceiving function, which can be deployed on land, including indoors or outdoors, held by hands, worn or carried by a vehicle; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical treatment (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. The embodiments of the present application do not limit the application scenarios. A terminal may also be referred to as a User Equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a remote terminal, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE device, among others.

It should be noted that the terms "system" and "network" in the embodiments of the present invention may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present invention. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified. In addition, it is to be understood that the terms first, second, etc. in the description of the present application are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order.

Hereinafter, some terms in the present application are explained to be understood by those skilled in the art.

The sub-frames referred to in this application may be understood as: one subframe occupies time-frequency resources of the entire system bandwidth in the frequency domain and occupies a fixed time length, e.g., 1 millisecond (ms), in the time domain. Meanwhile, one subframe can also occupy continuous K symbols, wherein K is a natural number greater than zero. The value of K may be determined according to actual conditions, and is not limited herein. For example, in LTE, 1 subframe occupies 14 consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain.

The time slot referred to in this application can be understood as: the time slot is a basic time-frequency resource unit, and occupies continuous L OFDM symbols in the time domain, wherein L is a natural number greater than zero. The value of L may be determined according to actual conditions, for example, 7 OFDM symbols.

The symbols mentioned in the present application include, but are not limited to, OFDM symbols, Sparse Code Multiple Access (SCMA) symbols, Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) symbols, and Non-Orthogonal Multiple Access (NOMA) symbols, which may be determined according to actual situations and are not described herein again.

With the rapid development of economy, the quantity of motor vehicles in all countries in the world is rapidly increased. Meanwhile, the negative effects of traffic jam and traffic accidents on people's daily life are becoming more and more serious. The reasons for traffic congestion are manifold, such as insufficient road resources, road maintenance and the like, wherein one of the main reasons is asymmetry of traffic information; causes of traffic accidents are also very complicated, such as blind areas, excessive speeds, etc., where the timeliness of traffic information is one of the main causes.

In order to solve the problems of traffic efficiency and traffic safety in the field of road traffic, the field of information and communication has been intensively studied from the viewpoint of information sharing. In the aspect of improving traffic efficiency, considering that the requirement of traffic information sharing on the real-time performance of information is not high, the eNodeB can issue traffic information to the vehicle-mounted terminal through a traditional Uu port, so that the symmetry of the traffic information is improved, and traffic jam is relieved; in the aspect of traffic safety, the requirement of traffic information sharing on the real-time performance of traffic safety information is very high, and if the information of one vehicle-mounted terminal is sent to a network through a Uu port and then sent to the vehicle-mounted terminal from the network, the traffic safety information is likely to fail due to overlarge time delay. In order to reduce the time delay of information transmission and improve the traffic safety, the industry proposes to use the PC5 port to directly transmit the traffic safety information. Under the scene covered by the eNodeB, an LTE-V user applies for time-frequency resources which can be used for PC5 transmission to the eNodeB on a Uu port, and sends traffic safety information on the PC5 after obtaining the time-frequency resources authorized by the eNodeB, and the Mode is called as a Mode3 Mode.

In Mode3, an LTE-V user applies for time-frequency resources on a port PC5 to an eNodeB by adopting a traditional SR-BSR process on a Uu port. According to TR 36.881, the SR-BSR procedure of the LTE-V user on the Uu port mainly consists of six steps, and the time delay corresponding to each step is shown in table 1. The SR period T represents a time interval between two times of SR transmission by the user, and the time length of 1TTI is 1 ms.

Step 1, UE waits for scheduling SR opportunity at Uu port;

step 2, UE sends SR at Uu port;

step 3, the eNodeB resolves the SR and sends the authority indication information Grant to the UE, and the authority indication information Grant indicates the resource for sending the BSR to the UE;

step 4, UE resolves Grant and sends BSR;

step 5, the eNodeB decodes the BSR and sends authority indication information Grant to the UE, and the authority indication information Grant indicates the resource for sending the PC5 data to the UE;

and step 6, the UE resolves the Grant and sends data at the PC 5.

TABLE 1

Taking Time Division Multiplexing (TDD) scheme 2 as an example, the period T of the SR is at least 5TTI, as shown in fig. 2. In fig. 2, D denotes a Downlink (Downlink) subframe, S denotes a Special (Special) subframe, and U denotes an Uplink (Uplink) subframe. As can be seen from fig. 2, since the LTE-V user can only send the SR to the eNodeB in the uplink subframe U, the shortest delay caused by the SR period is 0, and the largest delay is T. Therefore, in the case that the user traffic arrival times are uniformly distributed between 0 and T, the average delay caused by the SR period is T/2.

After a high-level service packet reaches a transmission buffer and a time-frequency resource available for transmitting an SR is obtained, an LTE-V user transmits an SR request to an eNodeB on a Physical Uplink Control Channel (PUCCH). The SR of each user occupies one PRB and adopts a structure of inter-slot frequency hopping, as shown in fig. 3, there are 4 Data (Data, DA) symbols and 3 Reference Signal (RS) symbols in each slot. With cyclic shift, orthogonal code and scrambling code, one PRB can simultaneously accommodate 36 users transmitting SRs. These 36 users are grouped together as indicated by UEG 1.

As can be seen from Table 1, the total average scheduling delay is T/2+17TTI (ms). This means that the longer the SR period T, the larger the resource scheduling delay consumed by the LTE-V user on the Uu port. Under the condition that available time frequency resources are certain and the time frequency resources among users are not conflicted, the more the number of system users is, the longer the scheduling period of the users is. Taking TDD ratio 2 as an example, assume that the system has only one PRB available for resource scheduling. Since one PRB can accommodate 36 users, as shown in fig. 2, the UEG1 represents one group of 36 users, and the UEG2 represents another group of 36 users. When the number of system users is not more than 36, the scheduling period of each user is 5TTI, and when the number of system users is more than 36 and not more than 72, the scheduling period of each user becomes 10 TTI.

With the SR resource mapping scheme of the prior art, only 36 users can be accommodated in one PRB at most. This is mainly because one PRB for transmitting the SR employs an inter-slot frequency hopping scheme, and there are 4 DA symbols and 3 RS symbols in each slot. 4 DA symbols correspond to 4 different sets of orthogonal codes and 3 RS symbols correspond to three different sets of orthogonal codes. However, since there are only 3 RS symbols in a slot, in order to support multiple users to multiplex one PRB at the same time, the system can only use 3 different sets of orthogonal codes at most, as shown in table 2, each set of orthogonal codes includes 14 orthogonal codewords, and these 14 codewords are allocated to 14 symbols of one uplink subframe for transmitting SR. In addition, one PRB has 12 subcarriers in total, and 12 different cyclic shifts are supported. Together with 12 different cyclic shifts, 3 different sets of orthogonal codes generate 36 mutually orthogonal time-frequency signals for 36 different users to use simultaneously.

TABLE 2

If the system only has one PRB and the number of LTE-V users exceeds 36, the average scheduling delay of each user is increased under the condition that no resource conflict exists among the users. TS 22.185 requires that the time delay from arrival to transmission of the LTE-V traffic packets from buffering to transmission is no greater than 20 ms.

In order to solve the problem that in the prior art, as the capacity of users increases, the resource scheduling delay consumed on a Uu port increases, so that the resource scheduling delay on the Uu port cannot meet the service requirement, the uplink control information scheduling method is provided, so that more users can be accommodated in one PRB, the average scheduling delay of each user is reduced under the condition that resource conflicts among the users are not increased, and the delay requirement of LTE-V is met. Further, the core of the application lies in that under the condition of ensuring orthogonality between DA symbols of different users and between RS symbols, the average resource scheduling delay of LTE-V users in the Mode3 is reduced by improving the capacity of SR in one PRB.

The present application provides a method for transmitting uplink control information, as shown in fig. 4, which mainly includes the following steps:

step 101, a terminal reports own short SR capability to a base station;

the terminal may be a terminal configured to have a short SR signal transmission capability, or may be a terminal configured to transmit a short SR signal, or may transmit a conventional SR signal. After the terminal reports the short SR capability of the terminal to the base station, the base station determines whether the terminal sends the short SR signal or not according to the overall performance of the system. In the system architecture shown in fig. 1, the terminal is an LTE vehicle-mounted terminal, i.e., an LTE-V user.

102, the base station indicates the terminal to send resource information required by a short SR signal according to the indication information sent by the short SR capability of the terminal;

103, the terminal configures a short SR signal on an uplink subframe according to the indication information of the base station, and determines resource positions of 7 symbols occupied by the short SR signal;

the configured short SR signal occupies 7 symbols of the uplink subframe, the short SR signal is used for indicating the base station to perform uplink resource scheduling, and the mode for configuring the short SR signal and the resource position of the 7 symbols occupied by the short SR signal are indicated by the base station or are preconfigured in the terminal.

For example, the base station may indicate, to the terminal, a manner of configuring the short SR signal and a resource location where the short SR signal is transmitted through the downlink control information. For example, the base station sends indication information to the terminal, where the indication information indicates an uplink subframe in which the terminal sends a short scheduling request SR signal, the number of symbols occupied by the short SR signal on the uplink subframe is 7 symbols, an orthogonal codeword corresponding to the 7 symbols occupied by the short SR signal and a resource location corresponding to the 7 symbols, and the 7 symbols include 4 data symbols and 3 reference signal symbols, so that the terminal configures the short SR signal on the uplink subframe according to the indication information and sends the short SR signal on the resource location.

The terminal indicates that configuring the short SR signal mainly includes two processes of symbol puncturing and codeword allocation. The symbol puncturing mainly punctures 7 symbols from 14 original symbols of the uplink subframe to obtain the 7 symbols needing to be reserved; the code word allocation mainly determines the orthogonal code words corresponding to the 7 symbols according to the indication information. And then modulating the 7 symbols according to the orthogonal code words corresponding to the 7 symbols to form the short SR signal.

The terminal generates 14 original symbols from the configured uplink subframe position, wherein the 14 original symbols comprise 8 data symbols and 6 reference signal symbols, the terminal divides 7 symbols from the 14 original symbols of the uplink subframe for transmitting the short SR signal and reserves 7 symbols, the reserved 7 symbols comprise 4 data symbols and 3 reference signal symbols, and the reserved 7 symbols are used for transmitting the short SR signal. After puncturing the symbols, the terminal configures a set of orthogonal codewords for the reserved 7 symbols, where the set of orthogonal codewords includes 7 orthogonal codewords, and the 7 orthogonal codewords are sequentially allocated to the reserved 7 symbols. Wherein, the orthogonal code word allocated for the short SR signal is an orthogonal code word with the length of 7. Which symbols need to be punctured can be configured by the base station or pre-configured in the terminal.

The process of allocating the code words by the terminal is configured by the base station, and specifically, the determining, by the terminal, the orthogonal code words corresponding to the 7 symbols according to the indication information includes: the terminal splits a group of orthogonal code words with the length of 14 into a first sub-group of orthogonal code words and a second sub-group of orthogonal code words according to the indication information, wherein the first sub-group of orthogonal code words and the second sub-group of orthogonal code words both comprise 7 orthogonal code words, and the group of orthogonal code words with the length of 14 is any one of three pre-configured groups of orthogonal code words with the length of 14; when the terminal is determined to be in the first user category, allocating 7 orthogonal code words in the first sub-group of orthogonal code words to the 7 symbols; and when the terminal is determined to be in the second user category, allocating 7 orthogonal code words in the second sub-group of orthogonal code words to the 7 symbols.

The resource positions of 7 symbols occupied by the short SR signal are determined to be indicated by the base station, where the resource positions corresponding to the 7 symbols include mapping relationships between the 4 data symbols and subcarrier positions thereof on one physical resource block in different frequency hopping patterns, and mapping relationships between the 3 reference signal symbols and subcarrier positions thereof on the physical resource block in different frequency hopping patterns, and a specific example is described in detail in the following paragraphs.

And 104, the terminal sends the short SR signal at the determined resource position.

And 105, the base station receives the short SR signal and carries out uplink resource scheduling aiming at the received short SR signal.

The specific implementation manner of configuring the short SR signal by the terminal is as follows:

(1) generating 14 original symbols in an uplink subframe, wherein the original symbols comprise 8 DA symbols and 6 RS symbols;

the uplink subframe is a subframe configured to send an SR to a terminal, and occupies 2 slots, each slot includes 7 symbols, and a resource location of each symbol is pre-configured. As shown in fig. 3, wherein the 3 rd symbol, the 4 th symbol and the 5 th symbol are RS symbols of a first slot, the 10 th symbol, the 11 th symbol and the 12 th symbol are RS symbols of a second slot, the 1 st symbol, the 2 nd symbol, the 6 th symbol and the 7 th symbol are DA symbols of the first slot, and the 8 th symbol, the 9 th symbol, the 13 th symbol and the 14 th symbol are DA symbols of the second slot.

The resource position corresponding to the DA symbol is a resource position corresponding to the 1 st symbol, the 2 nd symbol, the 6 th symbol, the 7 th symbol, the 8 th symbol, the 9 th symbol, the 13 th symbol and the 14 th symbol of the uplink subframe, and the resource position corresponding to the RS symbol is a resource position corresponding to the 3 rd symbol, the 4 th symbol, the 5 th symbol, the 10 th symbol, the 11 th symbol and the 12 th symbol of the uplink subframe. Each DA symbol and RS symbol corresponds to 12 subcarriers on one frequency band.

The DA symbol and the RS symbol of the LTE-V user in each time slot are obtained by circularly shifting the root sequence. According to TS 36.211, a root sequence is generated according to u and v values, wherein the u value and the v value are jointly determined by the number of RBs, a cell ID (cell ID), a sequence Hopping flag (Seq Hopping), a Group Hopping flag (Group Hopping) and a Slot number (Slot Idx). If group hopping is adopted, the u and v values of the first time slot and the second time slot are different, or the root sequences of the first time slot and the second time slot are different; otherwise, the u and v values of the first slot and the second slot are the same, or the root sequence of one slot and the second slot is the same. The root sequence of the DA symbol and the root sequence of the RS symbol are the same in each slot. And after the root sequence is obtained, circularly shifting the root sequence according to TS 36.211 so as to obtain a corresponding DA symbol and a corresponding RS symbol. This step is related to the same prior art and will not be described again here.

(2) Splitting existing three groups of orthogonal code words

In order to enable the eNodeB to distinguish signals of different LTE-V users, after the DA symbol and the RS symbol are obtained, orthogonal codewords are allocated to the DA symbol and the RS symbol. The prior art divides any one of the three sets of orthogonal codes in table 2 into 12 LTE-V users for simultaneous use. For example, a first set of orthogonal codes is distributed to 12 LTE-V users for simultaneous use, but cyclic shifts of signals used by the 12 different LTE-V users are different, i.e., orthogonality among the 12 LTE-V user signals is maintained through the 12 different cyclic shifts.

In order to enable one PRB to accommodate more SRs, namely 72 users are simultaneously supported to transmit the SRs, any one of three sets of orthogonal codes is divided into 24 LTE-V users for use. In order for the eNodeB to distinguish the signals of the 24 LTE-V users, the signals of the 24 LTE-V users need to be made interactive. The application provides a feasible splitting method, so that any one group of orthogonal code words is split into 2 groups of orthogonal code words, the orthogonality of the two groups of orthogonal code words can be ensured, and the splitting of the orthogonal code words is indicated by a base station.

The specific splitting method comprises the following steps: splitting each set of orthogonal codes of length 14 into two parts, each part having a length of 7, splitting the 1 st set of orthogonal codes of length 14 in table 2 into the 1 st set of orthogonal codes of length 7 in tables 3 and 4, splitting the 2 nd set of orthogonal codes of length 14 in table 2 into the 2 nd set of orthogonal codes of length 7 in tables 3 and 4, and splitting the 3 rd set of orthogonal codes of length 14 in table 2 into the 3 rd set of orthogonal codes of length 7 in tables 3 and 4. Where table 3 is a first orthogonal codeword index table and table 4 is a second orthogonal codeword index table. Any two sets of orthogonal codes in table 3 are orthogonal to each other and any two sets of orthogonal codes in table 4 are orthogonal to each other.

As shown in table 3, the symbol index of each group of orthogonal codes having a length of 7 is the 4 th symbol, the 5 th symbol, the 6 th symbol, the 7 th symbol, the 8 th symbol, the 9 th symbol, and the 10 th symbol.

As shown in table 4, the symbol index of each group of orthogonal codes having a length of 7 is the 1 st symbol, the 2 nd symbol, the 3 rd symbol, the 11 th symbol, the 12 th symbol, the 13 th symbol, and the 14 th symbol.

It should be noted that, a splitting manner shown in table 3 and table 4 is only an example, and the present application includes, but is not limited to, the splitting manner described above, where any group of orthogonal code words with a length of 14 in table 2 is split into 2 sub-groups of orthogonal code words, and any splitting manner in which each sub-group of orthogonal code words includes 7 orthogonal code words is within the scope of the present application.

TABLE 3

TABLE 4

(3) Redundant 4 DA symbols and 3 RS symbols are punctured from the 14 original symbols according to the user class.

The users are classified firstly, and can be grouped in a plurality of different modes, wherein the simplest grouping mode is that users with odd IDs are grouped into one group, and users with even IDs are grouped into one group. If the odd-numbered users are of the first user class, the even-numbered users are of the second user class.

After splitting the orthogonal code word, the length of each group of orthogonal code words is only 7, so that the 14 original symbols of each LTE-V user need to be cut by half. After symbol puncturing, the 14 original symbols of each LTE-V user are left with 7 symbols, which include 4 DA symbols and 3 RS symbols.

Alternatively, if each set of orthogonal codes in table 3 is assigned to users of a first user class, each set of orthogonal codes in table 4 is assigned to users of a second user class. The users of the first user category may reserve the 4 th, 5 th, 6 th, 7 th, 8 th, 9 th and 10 th symbols of the 14 original symbols and puncture the 1 st, 2 nd, 3 rd, 11 th, 12 th, 13 th and 14 th symbols. The users of the second user category may reserve the 1 st, 2 nd, 3 rd, 11 th, 12 th, 13 th and 14 th symbols of the 14 original symbols and puncture the 4 th, 5 th, 6 th, 7 th, 8 th, 9 th and 10 th symbols. Or vice versa.

Alternatively, another puncturing method may be adopted, for example, the symbol of the 1 st slot of the original symbol is reserved, and the symbol of the 2 nd slot of the original symbol is punctured, so that any one set of orthogonal codes in table 3 or table 4 may also be allocated to the 7 symbols of the reserved 1 st slot. Alternatively, the 1 st slot symbol may be punctured and the 2 nd slot symbol of the original symbol may be reserved. Such a symbol puncturing scheme is suitable for a resource mapping scheme for frequency hopping within a slot.

Of course, the present application includes, but is not limited to, the two puncturing manners described above, and other manners of puncturing 7 symbols are within the scope of the present application.

(4) Allocation of orthogonal code words for reserved 4 DA symbols and 3 RS symbols

And sequentially distributing 7 elements in the code word with the length of 7 after the code word is split to 7 symbols of the LTE-V user with the punctured symbols, namely, sequentially distributing one element in the code word with the length of 7 for each symbol.

For example, if any set of orthogonal codes in table 3 is allocated to the user of the first user class, the orthogonal codes of any set of symbol indexes in table 3, which are the 4 th symbol, the 5 th symbol, the 6 th symbol, the 7 th symbol, the 8 th symbol, the 9 th symbol and the 10 th symbol, are sequentially allocated to the 7 reserved symbols of the user of the first user class, and the 7 reserved symbols of the user of the first user class are exactly the 4 th symbol, the 5 th symbol, the 6 th symbol, the 7 th symbol, the 8 th symbol, the 9 th symbol and the 10 th symbol.

If each set of orthogonal codes in table 3 is assigned to users of a first user class, any set of orthogonal codes in table 3 can be assigned for use by users of 12 first user classes, and if each set of orthogonal codes in table 4 is assigned to users of a second user class, any set of orthogonal codes in table 4 can be assigned for use by users of 12 second user classes. By adopting the code word allocation scheme, any group of orthogonal codes in table 1 can ensure that the signals of 24 LTE-V users are orthogonal to each other, mainly because after 24 users are divided into two groups, the signals between 12 users of the first user class and 12 users of the second user class are orthogonal in a time division/frequency division manner; whereas for any set of 12 users, the cyclic shifts of the user signals through the root sequence are orthogonal.

(5) And modulating the 7 symbols according to the orthogonal code words corresponding to the 7 symbols to form the short SR signal.

After the short SR signal is configured, resource locations for transmitting the short SR signal, that is, resource locations corresponding to 4 DA symbols and 3 RS symbols, are determined.

The specific implementation manner for determining the resource location for transmitting the short SR signal is as follows:

for users of a first user class or users of a second user class, the reserved DA symbols and RS symbols are mapped into PRBs specified by an upper layer, and the mapping mode has at least 4 schemes: namely, a short SR resource mapping scheme in which the RS is split and frequency hopping is performed between time slots, a short SR resource mapping scheme in which the RS is split and frequency hopping is performed within a time slot, a short SR resource mapping scheme in which the RS is not split and frequency hopping is performed between time slots, and a short SR resource mapping scheme in which the RS is not split and frequency hopping is performed within a time slot.

For convenience of description, the resource locations corresponding to the DA symbol and the RS symbol include two dimensions of a frequency domain and a time domain. And (l, k) can be used to represent that the resource position corresponding to the DA symbol or the RS symbol is the kth subcarrier of the ith symbol, and all short SR resource mapping schemes are mapped from small to large by l ∈ [1,14] first, and then mapped from small to large by k ∈ [1,12 ]. After mapping with short SR resources, (l, k) of punctured symbols is filled with 0.

The four resource mapping schemes are described below with reference to specific examples.

Fig. 5 is a short SR resource mapping scheme with RS splitting and inter-slot frequency hopping according to example 1 of the present application. As shown in fig. 5, a mapping relationship exists between resource positions of 7 symbols reserved by a terminal and subcarrier positions of one physical resource block PRB, one PRB occupies two slots, where the two slots include 14 symbols, each symbol corresponds to 12 subcarrier positions, and the position of the PRB in each slot is specified by an upper layer. Wherein, the 3 rd symbol, the 4 th symbol and the 5 th symbol of the 14 symbols are RS symbols of the first slot, the 10 th symbol, the 11 th symbol and the 12 th symbol are RS symbols of the second slot, the 1 st symbol, the 2 nd symbol, the 6 th symbol and the 7 th symbol are DA symbols of the first slot, and the 8 th symbol, the 9 th symbol, the 13 th symbol and the 14 th symbol are DA symbols of the second slot.

When the terminal is in the first user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of a 5 th symbol and a 10 th symbol of a physical resource block, 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of an 11 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of the 6 th symbol, the 7 th symbol, the 8 th symbol and the 9 th symbol of the physical resource block.

When the terminal is in the second user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of the 3 rd symbol and the 12 th symbol of the physical resource block; the 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the 4 th symbol of the physical resource block, the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the 11 th symbol of the physical resource block, and the 4 data symbols are mapped on the 12 subcarriers of the 1 st symbol, the 2 nd symbol, the 13 th symbol, and the 14 th symbol of the physical resource block.

The user of the second user category splits 12 subcarriers of the 3 rd RS symbol into two parts, and each part of 6 subcarriers is mapped to the upper half part (corresponding to 6 subcarrier positions) of the first slot middle symbol and the lower half part (corresponding to the remaining 6 subcarrier positions) of the second slot middle symbol of the physical resource block, respectively. The user of the first user category splits the 12 sub-carriers of the 3 rd RS symbol into two parts, and each part of 6 sub-carriers is mapped to the lower half of the middle symbol of the first slot (corresponding to 6 sub-carrier positions) and the upper half of the middle symbol of the second slot (corresponding to the remaining 6 sub-carrier positions), respectively.

Fig. 6 is a short SR resource mapping scheme with RS split and frequency hopping within a timeslot according to example 2 of the present application. The resource positions of 7 symbols reserved by a terminal and the subcarrier positions of a physical resource block PRB have a mapping relation, one PRB occupies one time slot, 1 time slot comprises 7 symbols, each symbol corresponds to 12 subcarrier positions of an upper sideband and 12 subcarrier positions of a lower sideband, and the specific position of the PRB in the time slot is specified by an upper layer.

Specifically, when the terminal is of the first user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of an upper sideband of a 3 rd symbol and 12 subcarriers of a lower sideband of a 5 th symbol of the physical resource block, 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the upper sideband of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the lower sideband of the 4 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol, and 12 subcarriers of a lower sideband of a 7 th symbol of a physical resource block.

When the terminal is in the second user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of a lower sideband of a 3 rd symbol and 12 subcarriers of an upper sideband of a 5 th symbol of a physical resource block, 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the lower sideband of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the upper sideband of the 4 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a lower sideband of a 1 st symbol, 12 subcarriers of a lower sideband of a 2 nd symbol, 12 subcarriers of an upper sideband of a 6 th symbol, and 12 subcarriers of an upper sideband of a 7 th symbol of a physical resource block.

And the users of the second user category divide the 12 subcarriers of the 3 rd RS symbol into two parts, and each part has 6 subcarriers which are respectively mapped to the upper half part of the lower sideband intermediate symbol and the lower half part of the upper sideband intermediate symbol. The users of the first user category split the 12 subcarriers of the 3 rd RS symbol into two parts, 6 subcarriers per part, mapped to the lower half of the lower sideband middle symbol and the upper half of the upper sideband middle symbol, respectively.

Fig. 7 is a short SR resource mapping scheme with no RS splitting and inter-slot frequency hopping provided in example 3. As shown in fig. 7, a mapping relationship exists between resource positions of 7 symbols reserved by a terminal and subcarrier positions of one physical resource block PRB, one PRB occupies two slots, each slot includes 14 symbols, each symbol corresponds to 12 subcarrier positions, and the position of the PRB in each slot is specified by an upper layer.

When the terminal is of a first user category, mapping 3 reference signal symbols on 12 subcarriers of a 4 th symbol, a 5 th symbol and a 10 th symbol of a physical resource block; mapping 4 data symbols on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of a physical resource block;

when the terminal is of a second user type, mapping 3 reference signal symbols at resource positions corresponding to 12 subcarriers of a 3 rd symbol, an 11 th symbol and a 12 th symbol of a physical resource block; the 4 data symbols and the 3 reference signal symbols are mapped on 12 subcarriers of the 1 st symbol, the 2 nd symbol, the 13 th symbol and the 14 th symbol of the physical resource block.

Fig. 8 is a short SR resource mapping scheme with no RS splitting and frequency hopping within a timeslot, according to example 4 of the present application. The resource positions of 7 symbols reserved by a terminal and the subcarrier positions of a physical resource block PRB have a mapping relation, one PRB occupies one time slot, 1 time slot comprises 7 symbols, each symbol corresponds to 12 subcarrier positions of an upper sideband and 12 subcarrier positions of a lower sideband, and the specific position of the PRB in the time slot is specified by an upper layer.

When the terminal is in a first user category, 3 reference signal symbols are mapped on 12 subcarriers of an upper sideband of a 3 rd symbol, 12 subcarriers of a lower sideband of a 4 th symbol and 12 subcarriers of a lower sideband of a 5 th symbol of a physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol, and 12 subcarriers of a lower sideband of a 7 th symbol of a physical resource block.

When the terminal is in a second user category, 12 subcarriers of a lower sideband of a 3 rd symbol, 12 subcarriers of an upper sideband of a 4 th symbol and 12 subcarriers of an upper sideband of a 5 th symbol of 3 reference signal symbol physical resource blocks are arranged; the 4 data symbols are mapped on 12 subcarriers of a lower sideband of a 1 st symbol, 12 subcarriers of a lower sideband of a 2 nd symbol, 12 subcarriers of an upper sideband of a 6 th symbol, and 12 subcarriers of an upper sideband of a 7 th symbol of a physical resource block.

It should be noted that the above 4 resource mapping schemes are only examples, and a new resource mapping scheme can be obtained by further expanding and deforming on the basis of the four resource mapping schemes, which are all within the protection scope of the present application.

Compared with the prior art, the method and the process have the advantages that the number of users capable of simultaneously sending the SR in one PRB is doubled on the premise that the DA symbols and the RS symbols of different users are respectively orthogonal, so that the scheduling period and the average scheduling time delay of LTE-V users are reduced.

As shown in fig. 9, for a given number of users and time-frequency resources, the short SR can reduce the delay and delay jitter caused by the user scheduling period by two times compared with the conventional SR. Taking TDD ratio 2 as an example, suppose that the system has 72 users, but only one PRB. Based on the conventional SR, the 72 users need to be divided into two groups, and the scheduling period of each group of 36 users is 10 ms. Based on the short SR, only the 72 users need to be grouped, and the scheduling period of all users in the group is 5 ms. Meanwhile, for a given scheduling period and time-frequency resources, compared with the traditional SR, the number of users of the LTE-V system can be doubled by the method. Still taking TDD ratio 2 as an example, assume that the scheduling period of the system is 5ms, but there is only one PRB. Based on the conventional SR, the system can only accommodate 36 LTE-V users. Based on the short SR, the system can accommodate 72 users.

It should be noted that the method and the device are applied to reducing the Uu port scheduling delay of the LTE-V user. But in practical application, the method can also be applied to reducing the scheduling delay of the traditional Uu port service.

The embodiment of the application provides an uplink control information transmission device, which is used for solving the problem that in the prior art, along with the increase of user capacity, the resource scheduling delay consumed on a Uu port is increased, so that the resource scheduling delay on the Uu port cannot meet the service requirement. The method and the device for transmitting the uplink control information provided by the embodiment of the application are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not described again.

Based on the same concept, the present application provides a terminal as above, which is used for executing the method steps related to the terminal in various embodiments related to the present application. In one possible design, the terminal includes a plurality of functional blocks for performing the method steps associated with the terminal in the various embodiments to which the present application relates.

As shown in fig. 10, terminal 1000 can include a processing unit 1010 and a transceiver unit 1020. It is to be noted that the operations performed by the processing unit 1010 or the transceiver unit 1020 can be regarded as the operations of the terminal 1000.

In one possible design, the terminal structurally includes a processor and a transceiver, and the processor is configured to support the terminal to perform corresponding functions in the downlink control information monitoring method. The transceiver is configured to support communication between a terminal and a base station, and transmit information or instructions related to the method for resource allocation in the communication system to the base station. The terminal may also include a memory, coupled to the processor, that retains program instructions and data necessary for the terminal. The processing unit 1010 in the terminal 1000 can be implemented by a processor in the terminal 1000, and the transceiving unit 1020 can be implemented by a transceiver in the terminal 1000.

In one possible design, the terminal structurally includes a processor and a transceiver, and the processor is configured to support the terminal to perform corresponding functions in the downlink control information monitoring method. The transceiver is configured to support communication between a terminal and a base station, and transmit information or instructions related to the method for resource allocation in the communication system to the base station. The terminal may also include a memory, coupled to the processor, that retains program instructions and data necessary for the terminal.

It should be noted that, in the embodiment of the present application, the structural relationship of the transceiver, the processor, the memory and the bus system included in the terminal described above can be referred to in fig. 11. The transceiver 1105 in fig. 11 may be a wired transceiver, a wireless transceiver, or a combination thereof. The wired transceiver may be, for example, an ethernet interface. The ethernet interface may be an optical interface, an electrical interface, or a combination thereof. The wireless transceiver may be, for example, a wireless local area network communication interface, a cellular network communication interface, or a combination thereof.

The processor 1102 in the embodiment of the present application may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof. The memory 1103 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory 1103 may also include a non-volatile memory (ROM), such as a read-only memory (read-only memory), a flash memory (flash memory), a hard disk (HDD) or a solid-state drive (SSD); the memory 1103 may also comprise a combination of memories of the kind described above.

The bus system 1104 may also be included in embodiments of the present application, and the bus system 1104 may include any number of interconnected buses and bridges, with one or more processors 1102, represented by a processor, and various circuits of memory, represented by the memory 1103, being linked together. The bus may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are not described in any further detail herein. The transceiver 1105 provides a means for communicating with various other apparatus over a transmission medium. The processor 1102 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1102 in performing operations.

Based on the same inventive concept, an embodiment of the present application further provides a data transmission apparatus, and fig. 12 is a schematic structural diagram of the data transmission apparatus provided in the embodiment of the present invention (for example, a communication apparatus such as an access point, a base station, a station, or a terminal, or a chip in the foregoing communication apparatus).

As shown in fig. 12, the data transmission apparatus 1200 may be implemented by a bus 1201 as a general bus architecture. The bus 1201 may include any number of interconnecting buses and bridges depending on the specific application of the data transfer device 1200 and the overall design constraints. The bus 1201 couples various circuits together including the processor 1202, the storage medium 1203, and the bus interface 1204. Alternatively, the data transmission apparatus 1200 connects a network adapter 1205 or the like via the bus 1201 using the bus interface 1204. The network adapter 1205 may be used to implement signal processing functions at the physical layer of the wireless communication network and to transmit and receive radio frequency signals through the antenna 1207. The user interface 1206 may connect user terminals, such as: a keyboard, a display, a mouse or a joystick, etc. The bus 1201 may also connect various other circuits such as timing sources, peripherals, voltage regulators, or power management circuits, which are well known in the art, and therefore, will not be described in detail.

Alternatively, the data transmission device 1200 may also be configured as a general purpose processing system, such as what is commonly referred to as a chip, including one or more microprocessors that provide the functionality of a processor; and an external memory providing at least a portion of the storage medium 1203, all connected together with other support circuitry through an external bus architecture.

Alternatively, the data transfer device 1200 may be implemented using an ASIC (application specific integrated circuit) having a processor 1202, a bus interface 1204, and a user interface 1206; and at least a portion of the storage medium 1203 integrated within a single chip, or the data transfer device 1200 may be implemented using one or more FPGAs (field programmable gate arrays), PLDs (programmable logic devices), controllers, state machines, gated logic, discrete hardware components, any other suitable circuitry, or any combination of circuitry capable of performing the various functions described throughout this disclosure.

Among other things, the processor 1202 is responsible for managing the bus and general processing (including executing software stored on the storage medium 1203). The processor 1202 may be implemented using one or more general-purpose processors and/or special-purpose processors. Examples of processors include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Software should be construed broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

In the following figures the storage medium 1203 is shown separate from the processor 1202, however, it is readily apparent to a person skilled in the art that the storage medium 1203, or any part thereof, may be located outside the data transmission device 1200. The storage medium 1203 may include, for example, a transmission line, a carrier wave modulated with data, and/or a computer product separate from the wireless node, all of which may be accessed by the processor 1202 through the bus interface 1204. Alternatively, the storage medium 1203, or any portion thereof, may be integrated into the processor 1202, e.g., may be a cache and/or general purpose registers.

The processor 1202 may execute the uplink control information transmission method in any of the embodiments described above in this application, and specific content is not described herein again.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Based on the same idea, the present application provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method steps related to the terminal in the various embodiments to which the present application relates.

Based on the same concept, the present application provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method steps related to the base station in the various embodiments to which the present application relates.

Based on the same idea, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method steps related to the terminal in the various embodiments to which the present application relates.

Based on the same idea, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method steps related to the base station in the various embodiments to which the present application relates.

It is clearly understood by those skilled in the art that the descriptions of the embodiments of the present invention may be referred to each other, and for convenience and brevity of description, the functions and the steps of the apparatuses and the devices provided by the embodiments of the present invention may be referred to the relevant descriptions of the method embodiments of the present invention, which are not repeated herein.

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

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

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

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

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for transmitting uplink control information, the method comprising:

a terminal acquires indication information sent by a base station, wherein the indication information is used for indicating resource information required by the terminal for sending a short Scheduling Request (SR) signal; the short SR signal occupies 7 symbols, the 7 symbols comprising 4 data symbols and 3 reference signal symbols;

the terminal determines the 7 symbols from the uplink subframe corresponding to the SR signal according to the indication information;

the terminal determines orthogonal code words corresponding to the 7 symbols and resource positions corresponding to the 7 symbols according to the indication information;

and the terminal configures the short SR signal according to the 7 symbols and the orthogonal code words corresponding to the 7 symbols and sends the short SR signal on the resource positions corresponding to the 7 symbols.

2. The method of claim 1, wherein the terminal determines the 7 symbols from the SR signal according to the indication information, comprising:

the indication information further comprises positions of the 7 symbols on the uplink subframe, and the terminal determines the 7 symbols from the 14 symbols of the uplink subframe according to the positions of the 7 symbols on the uplink subframe.

3. The method of claim 1, wherein the indication information comprises orthogonal code words corresponding to the 7 symbols and resource locations corresponding to the 7 symbols.

4. The method of claim 1, wherein the determining, by the terminal, the orthogonal code words corresponding to the 7 symbols according to the indication information comprises:

the terminal splits a group of orthogonal code words with the length of 14 into a first sub-group of orthogonal code words and a second sub-group of orthogonal code words according to the indication information, wherein the first sub-group of orthogonal code words and the second sub-group of orthogonal code words both comprise 7 orthogonal code words, and the group of orthogonal code words with the length of 14 is one of three pre-configured groups of orthogonal code words with the length of 14;

allocating 7 orthogonal codewords contained in the first or second subset of orthogonal codewords to the 7 symbols.

5. The method according to claim 4, wherein said assigning 7 orthogonal codewords contained in said first or second subset of orthogonal codewords to said 7 symbols comprises:

when the terminal determines that the terminal is of a first user category, 7 orthogonal code words in the first sub-group of orthogonal code words are allocated to the 7 symbols;

and when the terminal determines that the terminal is of the second user category, allocating 7 orthogonal code words in the second sub-group of orthogonal code words to the 7 symbols.

6. The method according to any of claims 1 to 5, wherein the resource locations corresponding to the 7 symbols comprise mapping relationships between the 4 data symbols and their subcarrier locations on one physical resource block in different frequency hopping patterns, and further comprise mapping relationships between the 3 reference signal symbols and their subcarrier locations on the physical resource block in different frequency hopping patterns.

7. The method of claim 6, wherein when the frequency hopping pattern is inter-slot frequency hopping, the physical resource block occupies two slots, and the two slots include 14 symbols, and each symbol corresponds to 12 subcarrier positions;

when the terminal is of a first user category, 2 reference signal symbols in the 3 reference signal symbols are respectively mapped on 12 subcarriers of a 5 th symbol and a 10 th symbol of the physical resource block, 6 subcarriers of a 3 rd reference signal symbol in the 3 reference signal symbols are mapped on the last 6 subcarriers of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of an 11 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of the physical resource block;

when the terminal is of a second user category, mapping 2 of the 3 reference signal symbols on 12 subcarriers of a 3 rd symbol and a 12 th symbol of the physical resource block; the 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the 4 th symbol of the physical resource block, the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the 11 th symbol of the physical resource block, and the 4 data symbols are mapped on the 12 subcarriers of the 1 st symbol, the 2 nd symbol, the 13 th symbol, and the 14 th symbol of the physical resource block.

8. The method of claim 6, wherein when the frequency hopping pattern is intra-slot frequency hopping, the physical resource block occupies 1 slot, and the 1 slot comprises 7 symbols, and each symbol corresponds to 12 subcarrier locations of an upper sideband and 12 subcarrier locations of a lower sideband;

when the terminal is in a first user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of an upper sideband of a 3 rd symbol and 12 subcarriers of a lower sideband of a 5 th symbol of the physical resource block, 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of the upper sideband of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of the lower sideband of the 4 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol and 12 subcarriers of a lower sideband of a 7 th symbol of the physical resource block;

when the terminal is in a second user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of a lower sideband of a 3 rd symbol and 12 subcarriers of an upper sideband of a 5 th symbol of the physical resource block, 6 subcarriers of the 3 rd reference signal symbol are mapped on the first 6 subcarriers of a lower sideband of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on the last 6 subcarriers of an upper sideband of the 4 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a lower sideband of a 1 st symbol, 12 subcarriers of a lower sideband of a 2 nd symbol, 12 subcarriers of an upper sideband of a 6 th symbol, and 12 subcarriers of an upper sideband of a 7 th symbol of the physical resource block.

9. The method of claim 6, wherein when the frequency hopping pattern is inter-slot frequency hopping, the physical resource block occupies two slots, and the two slots include 14 symbols, and each symbol corresponds to 12 subcarrier positions;

when the terminal is of a first user class, mapping the 3 reference signal symbols on 12 subcarriers of a 4 th symbol, a 5 th symbol and a 10 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of the physical resource block;

when the terminal is of a second user category, mapping the 3 reference signal symbols on 12 subcarriers of a 3 rd symbol, an 11 th symbol and a 12 th symbol of the physical resource block; the 4 data symbols and the 3 reference signal symbols are mapped on 12 subcarriers of 1 st symbol, 2 nd symbol, 13 th symbol and 14 th symbol of the physical resource block.

10. The method of claim 6, wherein when the frequency hopping pattern is intra-slot frequency hopping, the physical resource block occupies 1 slot, and the 1 slot comprises 7 symbols, and each symbol corresponds to 12 subcarrier locations of an upper sideband and 12 subcarrier locations of a lower sideband;

when the terminal is of a first user category, mapping the 3 reference signal symbols on 12 subcarriers of an upper sideband of a 3 rd symbol, 12 subcarriers of a lower sideband of a 4 th symbol and 12 subcarriers of a lower sideband of a 5 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol and 12 subcarriers of a lower sideband of a 7 th symbol of the physical resource block;

when the terminal is of a second user category, the 3 reference signal symbols are on 12 subcarriers of a lower sideband of a 3 rd symbol, 12 subcarriers of an upper sideband of a 4 th symbol and 12 subcarriers of an upper sideband of a 5 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a lower sideband of a 1 st symbol, 12 subcarriers of a lower sideband of a 2 nd symbol, 12 subcarriers of an upper sideband of a 6 th symbol, and 12 subcarriers of an upper sideband of a 7 th symbol of the physical resource block.

11. The method according to any one of claims 5, 7 to 10,

when the identification number of the terminal is an odd number, the terminal is in the first user category, when the identification number of the terminal is an even number, the terminal is in the second user category, or when the identification number of the terminal is an even number, the terminal is in the first user category, and when the identification number of the terminal is an odd number, the terminal is in the second user category.

12. The method according to any one of claims 1 to 5,

and the resource filling corresponding to the symbol positions of the uplink subframe except the 7 symbols is 0.

13. An apparatus for uplink control information transmission, the apparatus comprising:

the terminal comprises a processing unit and a sending unit, wherein the processing unit is used for acquiring indication information sent by a base station, and the indication information is used for indicating resource information required by the terminal for sending a short Scheduling Request (SR) signal; the short SR signal occupies 7 symbols, the 7 symbols comprising 4 data symbols and 3 reference signal symbols; determining the 7 symbols from an uplink subframe corresponding to the SR signal according to the indication information; according to the indication information, determining orthogonal code words corresponding to the 7 symbols and resource positions corresponding to the 7 symbols; configuring the short SR signal and transmitting the short SR signal on resource positions corresponding to the 7 symbols according to the 7 symbols and orthogonal code words corresponding to the 7 symbols, and instructing a transceiver unit to transmit the short SR signal on the resource positions;

the transceiver unit is configured to transmit the short SR signal at the resource location.

14. The apparatus according to claim 13, wherein the processing unit is specifically configured to:

the indication information further comprises positions of the 7 symbols on the uplink subframe, and the 7 symbols are determined from 14 symbols of the uplink subframe according to the positions of the 7 symbols on the uplink subframe.

15. The apparatus of claim 13, wherein the indication information comprises orthogonal code words corresponding to the 7 symbols and resource locations corresponding to the 7 symbols.

16. The apparatus according to claim 13, wherein the processing unit is specifically configured to:

splitting a group of orthogonal code words with the length of 14 into a first sub-group of orthogonal code words and a second sub-group of orthogonal code words according to the indication information, wherein the first sub-group of orthogonal code words and the second sub-group of orthogonal code words both comprise 7 orthogonal code words, and the group of orthogonal code words with the length of 14 is one of three pre-configured groups of orthogonal code words with the length of 14;

17. The apparatus according to claim 16, wherein the processing unit is specifically configured to:

when the terminal is determined to be in the first user category, allocating 7 orthogonal code words in the first sub-group of orthogonal code words to the 7 symbols;

and when the terminal is determined to be in the second user category, allocating 7 orthogonal code words in the second sub-group of orthogonal code words to the 7 symbols.

18. The apparatus of any one of claims 13 to 17,

the resource positions corresponding to the 7 symbols include mapping relationships between the 4 data symbols and subcarrier positions thereof on one physical resource block in different frequency hopping modes, and further include mapping relationships between the 3 reference signal symbols and subcarrier positions thereof on the physical resource block in different frequency hopping modes.

19. The apparatus of claim 18, wherein when the frequency hopping pattern is inter-slot frequency hopping, the physical resource block occupies two slots, and the two slots comprise 14 symbols, and each symbol corresponds to 12 subcarrier positions;

when the terminal is in the first user category, 2 of the 3 reference signal symbols are mapped on 12 subcarriers of a 5 th symbol and a 10 th symbol of the physical resource block, 6 subcarriers of a 3 rd reference signal symbol are mapped on a last 6 subcarriers of a 4 th symbol of the physical resource block, and the remaining 6 subcarriers of the 3 rd reference signal symbol are mapped on a first 6 subcarriers of an 11 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of a 6 th symbol, a 7 th symbol, an 8 th symbol and a 9 th symbol of the physical resource block;

20. The apparatus of claim 18, wherein when the frequency hopping pattern is intra-slot frequency hopping, the physical resource block occupies 1 slot, and the 1 slot comprises 7 symbols, and each symbol corresponds to 12 subcarrier locations of an upper sideband and 12 subcarrier locations of a lower sideband;

21. The apparatus of claim 18, wherein when the frequency hopping pattern is inter-slot frequency hopping, the physical resource block occupies two slots, and the two slots comprise 14 symbols, and each symbol corresponds to 12 subcarrier positions;

when the terminal is of a second user category, the 3 reference signal symbols are mapped to resource positions corresponding to 12 subcarriers of a 3 rd symbol, an 11 th symbol and a 12 th symbol of the physical resource block; the 4 data symbols and the 3 reference signal symbols are mapped on 12 subcarriers of 1 st symbol, 2 nd symbol, 13 th symbol and 14 th symbol of the physical resource block.

22. The apparatus of claim 18, wherein when the frequency hopping pattern is intra-slot frequency hopping, the physical resource block occupies 1 slot, and the 1 slot comprises 7 symbols, and each symbol corresponds to 12 subcarrier locations of an upper sideband and 12 subcarrier locations of a lower sideband;

when the terminal is of a first user category, the 3 reference signal symbols are mapped on 12 subcarriers of an upper sideband of a 3 rd symbol, 12 subcarriers of a lower sideband of a 4 th symbol and 12 subcarriers of a lower sideband of a 5 th symbol of the physical resource block; the 4 data symbols are mapped on 12 subcarriers of an upper sideband of a 1 st symbol, 12 subcarriers of an upper sideband of a 2 nd symbol, 12 subcarriers of a lower sideband of a 6 th symbol and 12 subcarriers of a lower sideband of a 7 th symbol of the physical resource block;

23. The apparatus of any one of claims 17, 19 to 22,

24. The apparatus of any one of claims 13 to 17,

25. A terminal, comprising: a memory and a processor, wherein:

the memory is to store instructions;

the processor is configured to execute the instructions stored in the memory, and when the processor executes the instructions stored in the memory, the terminal is configured to perform the method of any of claims 1-12.

26. A computer-readable storage medium having stored therein instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-12.