WO2018018609A1

WO2018018609A1 - Feedback information transmission apparatus and method, and communication system

Info

Publication number: WO2018018609A1
Application number: PCT/CN2016/092313
Authority: WO
Inventors: 周华; 郤伟; 蒋琴艳
Original assignee: 富士通株式会社; 周华; 郤伟; 蒋琴艳
Priority date: 2016-07-29
Filing date: 2016-07-29
Publication date: 2018-02-01

Abstract

A feedback information transmission apparatus and method, and a communication system. The transmission method is applied to a time-frequency resource communication system using one or more standards. The transmission method comprises: sending configuration information about one or more standards via a physical broadcast channel and sending configuration information about channels bearing feedback information and respectively corresponding to the standards; and respectively sending the feedback information about the standards via the corresponding channels bearing feedback information. Thereby, in a future system where a super-large bandwidth and various standards coexist, feedback information can be transmitted reliably and the reception complexity can be reduced, and channel collisions of the feedback information can also be reduced or prevented even if a non-orthogonal multiple access technology is used.

Description

Transmission device, method and communication system for feedback information

Technical field

The present invention relates to the field of communications technologies, and in particular, to a device, method, and communication system for transmitting feedback information.

Background technique

In the existing Long Term Evolution (LTE) system, the base station and the user equipment (UE, User Equipment) use Hybrid Automatic Repeat ReQuest (HAR) technology to improve the data transmission success rate. At the receiving end, a Cyclic Redundancy Check (CRC) is used to determine whether the data block is correctly received. If the receiving end does not correctly receive the data, it sends back a Negative Acknowledgement (NACK) message to the transmitting end to request retransmission of data; if the data is correctly received, the acknowledgment (ACK, Acknowledgement) information is fed back to the transmitting end. So that the sender can send new data.

For the feedback information (ACK/NACK information) of the data transmitted by the user equipment, in the LTE and LTE-Advanced systems, the base station may carry the feedback information by using a Physical Hybrid Automatic Redirect Indicator Channel (PHICH).

Specifically, if the user equipment transmits the Physical Uplink Shared Channel (PUSCH) information at time n, the base station will transmit PHICH information at a fixed time n+k, in frequency division duplex (FDD, Frequency Division). In a Duplexing system, k=4, in a Time Division Duplexing (TDD) system, k varies with the different values of the TDD uplink and downlink configuration, but is still a preset value.

The PHICHs of different user equipments can be mapped to the same downlink physical resource element (RE). In order to ensure that PHICHs between user equipments do not interfere with each other, different PHICHs can be transmitted on the same RE by code division multiplexing.

Specifically, one PHICH may be mapped to one PHICH resource group (PHICH group for short), and one orthogonal multiplexing Walsh sequence in the PHICH group is used, that is, each PHICH may be numbered by the PHICH group.

Sequence number

The only certainty is as shown below.

The n _DMRS indicates the cyclic shift (CS, Cycle Shift) number of the Demodulation Reference Signal (DMRS) indicated in the downlink control information (DCI, Downlink Control Information) of the last scheduled PUSCH, as shown in Table 1 below. :

Table 1

Represents the spreading factor used to modulate the PHICH, and for a subframe of the Normal (Cycle Predix),

among them,

The lowest sequence number of the Physical Resource Block (PRB) occupied by the PUSCH in the first time slot, TB indicates a Transmission Block; I _PHICH indicates a multiple of the number of PHICH groups, TDD and FDD Take different values (for example, 0 for FDD and 1 for TDD).

The number of PHICH groups configured for the upper layer can be calculated by the following formula:

For the system bandwidth, the Ng can be carried by the Main Information Block (MIB) in the Physical Broadcast Channel (PBCH). As shown in Table 2 below, the Ng value is 1/6, 1/2. One of 1,2. Table 2 shows some of the contents of the MIB.

Table 2

Base station based on calculation

with

The PHICH mapping may be performed on the physical resources occupied by the control channel in the downlink subframe (except the Physical Control Format Indicator Channel (PCFICH)). For example, PHICHs of different PHICH groups can be mapped to different frequency resources; the same PHICH group but different

The PHICH can be mapped to the same RE, but spread with different orthogonal sequences.

On the other hand, there is a need to provide more advanced wireless communication technologies in the future. At present, some standards organizations have carried out research on the needs of future wireless communication systems. For example, the system must support a large-capacity transmission rate communication method, which can be called enhanced mobile broadband (eMBB); also consider support for a large number of machine type communication, which can be called massive machine type communication (mMTC, massive). Machine type communication); In addition, in consideration of automatic driving, emergency communication in disaster scenarios, etc., it is also required to support high reliability and low-latency communication, which can be called ultra-reliable low latency communication (uRLLC). .

It should be noted that the above description of the technical background is only for the purpose of facilitating a clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these aspects are set forth in the background section of the present invention.

Summary of the invention

However, the inventors found that the current feedback information (such as ACK/NACK) occupies the PHICH on the full bandwidth resource, and on the future very large bandwidth system, if all the full bandwidth resources are used for the PHICH transmission, due to different standards (Numerology) The corresponding receiver structure is different and will result in user equipment (or It can also be called terminal). The complexity of detecting PHICH becomes large, and it is necessary to consider how to transmit feedback information in a system with large bandwidth and multiple systems coexisting in the future.

On the other hand, for certain service requirements (such as mMTC service), the system needs to be able to access a large number of MTC user equipments. One possible solution is to use non-orthogonal multiple access (NOMA) in uplink transmission (NOMA, non-orthogonal Multiplex access technology, which is different from existing orthogonal multiple access technology. The use of the non-orthogonal multiple access technology may result in different PHICH group numbers and serial numbers calculated by different user equipments according to the resource location of the PUSCH and the CS of the DMRS, so that the user equipment cannot correctly receive the PHICH. It is necessary to consider how to avoid PHICH collisions in non-orthogonal multiple access systems.

Embodiments of the present invention provide a device, a method, and a wireless communication system for transmitting feedback information. It is expected to reliably transmit feedback information and reduce reception complexity in a system with large bandwidth and multiple modes of coexistence in the future; and at the same time, it can reduce or avoid a channel carrying feedback information (such as PHICH) even if non-orthogonal multiple access technology is adopted. collision.

According to a first aspect of the embodiments of the present invention, a method for transmitting feedback information is provided, which is applied to a communication system using time-frequency resources of one or more standards, where the transmission method includes:

And transmitting, by using a physical broadcast channel, configuration information of the one or more standards and configuration information of a channel that carries feedback information corresponding to the system respectively;

The feedback information for the system is separately transmitted through the corresponding channel carrying the feedback information.

According to a second aspect of the embodiments of the present invention, there is provided a transmission apparatus for feedback information, which is configured in a communication system using time-frequency resources of one or more standards, the transmission apparatus comprising:

a configuration unit, configured to send, by using a physical broadcast channel, configuration information of the one or more standards and configuration information of a channel that carries feedback information corresponding to the system respectively;

a feedback unit that separately transmits feedback information for the system through the corresponding channel carrying the feedback information.

According to a third aspect of the embodiments of the present invention, there is provided a base station or a transmitting end, the transmission apparatus configured with the feedback information according to the second aspect above.

According to a fourth aspect of the embodiments of the present invention, there is provided a communication system using time-frequency resources of one or more standards, the communication system comprising:

a sending end, where the configuration information of the one or more standards and the configuration information of the channel carrying the feedback information corresponding to the system respectively are sent through a physical broadcast channel; and the corresponding feedback information by the bearer feedback information The channel separately sends feedback information for the system;

a receiving end, which receives configuration information of the one or more systems transmitted through the physical broadcast channel and configuration information of a channel that carries feedback information corresponding to the system respectively; and correspondingly according to configuration information of the channel The feedback information for the system is received on the channel.

The beneficial effects of the embodiment of the present invention are: transmitting configuration information of one or more standards through the physical broadcast channel, and configuration information of a channel carrying the feedback information corresponding to the system respectively; and passing the corresponding channel carrying the feedback information Send feedback information separately. Therefore, in the future system with large bandwidth and multiple modes coexisting, not only reliable feedback information can be transmitted and reception complexity can be reduced, but also channel collision of feedback information can be reduced or avoided even by using non-orthogonal multiple access technology. .

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the drawings, in which <RTIgt; It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the scope of the appended claims.

Features described and/or illustrated with respect to one embodiment may be used in one or more other embodiments in the same or similar manner, in combination with, or in place of, features in other embodiments. .

It should be emphasized that the term "comprising" or "comprises" or "comprising" or "comprising" or "comprising" or "comprising" or "comprises"

DRAWINGS

The elements and features described in one of the figures or one embodiment of the embodiments of the invention may be combined with the elements and features illustrated in one or more other figures or embodiments. In the accompanying drawings, like reference numerals refer to the

1 is a schematic diagram of a frame structure in various modes according to an embodiment of the present invention;

2 is a schematic diagram of a method for transmitting feedback information according to Embodiment 1 of the present invention;

3 is another schematic diagram of a method for transmitting feedback information according to Embodiment 1 of the present invention;

4 is a schematic diagram of a transmission device for feedback information according to Embodiment 2 of the present invention;

Figure 5 is a schematic diagram of a communication system according to Embodiment 3 of the present invention;

6 is a schematic diagram of a base station according to Embodiment 3 of the present invention;

FIG. 7 is a schematic diagram of a user equipment according to Embodiment 3 of the present invention.

detailed description

The foregoing and other features of the present invention will be apparent from the The specific embodiments of the present invention are disclosed in the specification and the drawings, which are illustrated in the embodiment of the invention The invention includes all modifications, variations and equivalents falling within the scope of the appended claims.

In the present application, a base station may be referred to as an access point, a broadcast transmitter, a Node B, an evolved Node B (eNB), etc., and may include some or all of their functions. The term "base station" will be used herein. Each base station provides communication coverage for a particular geographic area. The term "cell" can refer to a base station and/or its coverage area, depending on the context in which the term is used.

In this application, a mobile station or device may be referred to as a "User Equipment" (UE). A UE may be fixed or mobile and may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, and the like. The UE may be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless telephone, and the like.

For the three different application scenarios of future communication, in order to simplify the design, a unified system design is required. For example, for a uRLLC application (or a service, it can also be called a service), the transmission delay should be as low as possible, and the symbol length should be reduced, that is, the subcarrier spacing should be elongated (if OFDM is used). Orthogonal Frequency Division Multiplexing); for mMTC applications, the data transfer rate is not high, longer symbols can be used, that is, the subcarrier spacing is reduced; and for eMBB applications, the two applications are uRLLC and mMTC. Between the needs.

The parameters such as the subcarrier spacing and the symbol length used by the three different services may be different, and one subcarrier spacing and symbol length (and other parameters, etc.) may be referred to as a system (Numerology). Other parameters include, for example, a cyclic prefix (CP, Cycle Prefix) length, and the like; however, the present invention is not limited thereto.

In order to ensure the simplicity of the system design, the time intervals (such as the subframe length) under various Numerologies can be designed to be the same. It should be noted that each user equipment may use one system or multiple systems, and the present invention is not limited thereto.

FIG. 1 is a schematic diagram of a frame structure in various modes according to an embodiment of the present invention. As shown in FIG. 1, during a certain time interval (for example, a subframe length), time-frequency resources may have multiple formats (as shown in FIG. System 1, system 2 and system 3) shown in Fig. 1. Different Numerology has different subcarrier spacing and symbol length, but the subframe length is The degrees are the same. In the future ultra-large bandwidth system, multiple Numerologies may coexist, and different Numerologies may occupy an independent frequency portion or share a frequency division.

The above is a schematic description of the system; wherein different sub-carrier spacings and/or symbol lengths are used in different systems, but the invention is not limited thereto, for example, different systems may have different other parameters. Regarding the name of the system, the present invention is not limited thereto, and may be referred to as a mode, a pattern, and the like, for example.

The following is an example in which a base station in a communication system is used as a transmitting end and a user equipment is used as a receiving end. However, the present invention is not limited thereto. For example, the transmitting end and/or the receiving end may be other network devices. In addition, the communication system of the embodiment of the present invention can adopt a plurality of different standards, and of course, a communication system using a standard is also applicable to the present invention.

Example 1

Embodiments of the present invention provide a method for transmitting feedback information, which is applied to a communication system using time-frequency resources of one or more standards. FIG. 2 is a schematic diagram of a method for transmitting feedback information according to an embodiment of the present invention, which is described from the side of a transmitting end (for example, a base station). As shown in FIG. 2, the method for transmitting the feedback information includes:

Step 201: Send, by using a physical broadcast channel, configuration information of one or more standards and configuration information of a channel that carries feedback information corresponding to the system respectively;

Step 202: Send feedback information for the system by using the corresponding channel carrying the feedback information.

In this embodiment, the transmitting end may be a macro base station (for example, an eNB), and the receiving end is a user equipment; a macro cell (for example, a Macro cell) generated by the macro base station may provide a service for the user equipment. Alternatively, the sending end may be a micro base station, and the receiving end is a user equipment; the micro cell generated by the micro base station (for example, a small cell, a Pico cell) may provide services for the user equipment. Alternatively, the sender and/or the receiver may also be other network devices. In addition, the base station or the cell in the present invention may work in a licensed frequency band or may operate in an unlicensed frequency band. The present invention is not limited thereto, and a specific scenario can be determined according to actual needs.

In this embodiment, in a communication system in which a variety of Numerology exists, the PBCH can be transmitted at a fixed frequency domain location and periodically. The fixed frequency resource location may be pre-agreed, may occupy the same size frequency resource as the synchronization channel, or may occupy different size frequency resource locations; and may be periodically transmitted in a time-sharing manner.

In this embodiment, by transmitting the frequency domain resource of the PBCH, it is convenient for the user equipment to receive the system message after the synchronization is completed. If the PBCH is transmitted separately on the system resources corresponding to different Numerology, The receiving complexity of the user equipment is increased. For this purpose, the system information corresponding to different Numerology can be uniformly transmitted in a fixed frequency domain location, so that the user equipment can receive system information corresponding to different Numerology in the frequency domain location, and reduce the user equipment. Receive complexity.

In addition, the time domain resource for transmitting the PBCH in the embodiment of the present invention may also be determined in advance, that is, the PBCH may be periodically sent on the predetermined frequency domain resource and the time domain resource.

In this embodiment, the PBCH can carry configuration information of a plurality of different standards. The configuration information of each system may include one or more of the following information: bandwidth information, frequency domain resource information, and time domain resource information. In addition, the PBCH can also carry beam ID related information. However, the present invention is not limited thereto, and other information may be included.

For example, the configuration information may include one or more of the following information: bandwidth information of different Numerology, frequency domain resource information, time domain resource information; and may further include one or more of the following information: system frame number, scheduling of SIB1 Information, beam ID related information, etc. The time domain resource information may be time information that the Numerology configuration can last. These configuration information can be carried in the MIB.

In addition, the PBCH may also carry configuration information of a channel that carries feedback information corresponding to a plurality of different systems, and the channel that carries the feedback information may be, for example, a PHICH; each system may correspond to one PHICH, or each system has its own Independent PHICH. However, the present invention is not limited thereto. For example, the channel carrying the feedback information may also be a PDCCH, where each system may correspond to one PDCCH.

It should be noted that the physical broadcast channel of the embodiment of the present invention may be a PBCH of an existing LTE or LTE-A system, or may be a new physical broadcast channel, or may be part or all of a multi-level physical broadcast channel. Used to carry more important system related parameters.

Regarding the multi-level physical broadcast channel, for example, part of the most important system information is transmitted on the first-level physical broadcast channel, and secondly, important system information is transmitted on the second-level physical broadcast channel, and so on, and different levels of physical broadcast channels are different. Transmission period and/or time-frequency resource location, etc.

In addition, the physical hybrid automatic retransmission indication channel of the embodiment of the present invention may be a PHICH of an existing LTE or LTE-A system, or may be a new physical hybrid automatic retransmission indication channel. The physical downlink control channel of the embodiment of the present invention may be a PDCCH of an existing LTE or LTE-A system, or may be a new physical downlink control channel.

That is, the above concept or content regarding a signal or channel is not limited to the content in the LTE or LTE-A system, for example, it may be an enhanced signal or channel, or a newly defined signal or channel, and the present invention does not Make restrictions.

The PHICH will be described in detail below as an example.

In this embodiment, the PHICH configuration information corresponding to each system may include one or more of the following information: PHICH occupied frequency domain location information, PHICH occupied time domain location information, and PHICH group number indication. Information (Ng), PHICH spreading factor

A multiple of the number of groups of _PHICH (I _PHICH ).

For example, the PHICH configuration information includes: a frequency resource location used by the PHICH, that is, a frequency potion occupied by the PHICH, and a group number indication information (Ng) of the PHICH in the frequency division, and a time domain resource information occupied by the PHICH. . Alternatively, the frequency division occupied by the PHICH may be preset to be the frequency division occupied by the Numerology, and the PHICH configuration information may include only the PHICH group number indication information (Ng) and the occupied time domain resource information under different Numerology. Alternatively, the frequency division occupied by the PHICH may be preset to be the frequency division occupied by the Numerology, and the occupied time domain resource location (for example, which symbol is specified) may be preset, and the PHICH configuration information may only include different Numerology. The number of groups of PHICH indicates information (Ng).

In this embodiment, by carrying the configuration information of different Numerology in the PBCH, the user equipment can obtain the bandwidth, the frequency domain configuration, the time domain configuration (including the periodic or non-periodic configuration) of each Numerology through the PBCH, so that The user equipment selects a suitable Numerology for data transmission in subsequent data transmission.

In addition, by carrying the configuration information of the PHICH corresponding to the different Numerology in the PBCH, the user equipment can obtain the PHICH configuration information corresponding to each Numerology through the PBCH, and receive the PHICH on the corresponding time-frequency resource, thereby reliably obtaining the PHICH. A feedback from Numerology.

Of course, Numerology and corresponding PHICH of different services may use the same set of configuration information respectively, or different configuration information may be used, which may depend on the settings of the system.

In this embodiment, the group number indication information of the PHICH may be configured, and in addition, the spreading factor of the PHICH and/or the multiple of the number of groups of the PHICH may also be configured. As described above, one or more of the PHICH group number indication information, the PHICH spreading factor, and the multiple of the PHICH group number may be transmitted through the PBCH, and the PHICH group number indication information, the PHICH spreading factor. One or more of the multiples of the PHICH group number may also be sent through higher layer signaling (eg, Radio Resource Control (RRC) signaling), or may be predetermined.

In this embodiment, the group number indication information of the PHICH may include part or all of the following values: 1/6, 1/2, 1, 2, 4, 6, 8, 10, 12, 16. In the case where the communication system is an FDD system, the spreading factor of the PHICH can be To include some or all of the following values: 4, 8, 16; in the case where the communication system is a TDD system, the spreading factor of the PHICH may include some or all of the following values: 2, 4, 8.

That is, by allowing a higher number of PHICH groups {1/6, 1/2, 1, 2, 4, 6, 8, 10, 12, 16}, and more spreading PHICH spreading factor {2, 4, 8} or {4, 8, 16} can significantly increase the PHICH resources so that more user equipment can be allowed to allocate PHICH transmissions.

Specifically, by allowing a higher number of PHICH groups, the number of physical resources used for PHICH transmission can be expanded, and a higher order spreading factor can be introduced, and more orthogonal sequences can be used for PHICH transmission with the same group number. . In addition, for each type of Numerology, the group number indication information in the corresponding PHICH resource configuration and the spreading factor of the modulation PHICH may be different from other PHUM resource configuration parameters of the Numerology, or may be the same.

As previously mentioned, when a multi-level broadcast channel configuration is employed, some of the PHICH configuration information can be transmitted in different levels of the broadcast channel. For example, the location of the frequency resource used by the PHICH (ie, the frequency division occupied by the PHICH) and the time domain location information occupied by the PHICH may be transmitted in the first-level broadcast channel, and other configuration information may be transmitted on the subsequent broadcast channel. Other designs can also be employed to determine which level of broadcast channel transmits the configuration information of the PHICH, or can be pre-set according to system design.

FIG. 3 is another schematic diagram of a method for transmitting feedback information according to an embodiment of the present invention. The base station and the user equipment are taken as an example for description from both the transmitting end and the receiving end. As shown in FIG. 3, the method for transmitting the feedback information includes:

Step 301: The base station sends configuration information of multiple different systems and PHICH configuration information corresponding to the multiple different systems by using the PBCH.

In this embodiment, the user equipment can obtain the PHICH configuration information of the corresponding system in the PBCH. For example, if the MTC user equipment that performs the mMTC service uses the standard 1 (mMTC system), the PHICH configuration information corresponding to the system 1 can be obtained.

Step 302: The user equipment sends uplink data for a certain standard to the base station through the PUSCH.

For example, an MTC user equipment using the standard 1 (mMTC system) can transmit uplink data for the system 1 to the base station through the PUSCH.

Step 303: The base station sends feedback information by using the PHICH corresponding to the standard.

For example, after receiving the uplink data for the system 1 sent by the MTC user equipment, the base station may send an ACK/NACK to the MTC user equipment by using the PHICH corresponding to the system 1.

The above has only been described by taking a certain system as an example, and can be similarly processed for various systems.

It is to be noted that FIG. 3 is only illustrative of an embodiment of the invention, but the invention is not limited thereto. For example, the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced. Those skilled in the art can appropriately modify the above based on the above contents, and are not limited to the description of the above drawings.

In an embodiment, when the transmission resource of the uplink data corresponding to the feedback information is allocated by the base station by using the DCI, the resource for transmitting the PHICH may be determined by one or more of the following parameters: the uplink data allocated by the base station to be transmitted. a cyclic shift sequence number of the DMRS, an Orthogonal Cover Code (OCC) number of the DMRS for transmitting the uplink data, a physical resource location allocated by the base station to transmit the uplink data, a base station allocation, or a user equipment Selecting a spreading sequence number used for transmitting the uplink data, a base station allocation, or a code pattern number used by the user equipment to transmit the uplink data, a base station allocation, or an interlace used by the user equipment to transmit the uplink data Device pattern number, user equipment identifier, beam ID (Beam ID), cell ID (Cell ID).

For example, the PHICH resource mapping can be uniquely determined by the PHICH group number and sequence number:

Here, the UE_SPID indicates the spreading sequence number when the user equipment transmits the uplink data. Similarly, the ID of the user equipment may be used instead of the UE_SPID, or the UE ID and the UE_SPID may be used at the same time, and the present invention is not limited thereto, and other forms of mapping methods based on these parameters may also be employed.

In this embodiment, the resource mapping of the PHICH based on which parameters may be notified by higher layer signaling or by a physical broadcast channel, or different mapping relationships may also be implicitly defined. For example, when there are multiple user equipments for multiple access in the system, the PHICH of the user equipment using orthogonal multiple access may be cyclically shifted according to the resource location of the PUSCH and the DMRS (may also include the DMRS OCC number). For resource mapping, the PHICH of the user equipment using non-orthogonal multiple access can perform resource mapping according to the method shown in the above formula.

In addition, when the communication system uses multiple antennas and transmits based on the beam, the frequency domain resource location of the PHICH may also be mapped based on the beam identification and the cell identity.

For example, it can be as follows:

That is, you can

Replace with

In this embodiment, the PHICH resource mapping method can be applied to a plurality of communication systems of different standards, and the above methods can be used separately for each system. Of course, the PHICH resource mapping method disclosed in this embodiment can also be applied to a communication system having only one system.

In another embodiment, in a case that the transmission resource of the uplink data corresponding to the feedback information is not allocated by the base station through the DCI, the resource for transmitting the PHICH may be determined by one or more of the following parameters: the transmission selected by the user equipment. a cyclic shift sequence number of the DMRS of the uplink data, an OCC number of the DMRS for transmitting the uplink data selected by the user equipment, a physical resource location selected by the user equipment for transmitting the uplink data, and the uplink data selected by the user equipment The spreading sequence number used, the preamble sequence number selected by the user equipment, the code pattern number used by the user equipment to transmit the uplink data, the interleaver pattern number used by the user equipment to transmit the uplink data, and the user Device identification, beam identification, and cell identification.

Here, the UE_SPID is a spreading sequence number of the transmission uplink data channel selected by the user equipment. Similarly, the ID of the user equipment or the preamble sequence number (the sequence number of the preamble) may be used instead of the UE_SPID, or these numbers may be used at the same time. The present invention is not limited thereto, and other forms of mapping methods based on these parameters may also be employed.

For example, you can also use the following formula to calculate PHICH resources:

In addition, when mapping the PHICH to the physical frequency domain resource location, when multi-antenna and beam-based transmission is used, it can be mapped according to the beam ID and the cell ID.

For example, it can be as follows:

That is, you can

Replace with

It is to be noted that the present invention has been described above by taking PHICH as an example, but the present invention is not limited thereto. The channel carrying the feedback information may also be a PDCCH. The feedback information can also be transmitted through the corresponding PDCCHs under different Numerology. That is, the base station may transmit feedback information of each PUSCH in the PDCCH, thereby avoiding resource allocation collision of multiple PHICHs.

It can be seen that, by using the physical broadcast channel, the configuration information of one or more standards and the configuration information of the channel that carries the feedback information corresponding to the standard respectively are sent through the physical broadcast channel; and the feedback is respectively sent through the corresponding channel carrying the feedback information. information. Therefore, in the future system with large bandwidth and multiple modes coexisting, not only reliable feedback information can be transmitted and reception complexity can be reduced, but also channel collision of feedback information can be reduced or avoided even by using non-orthogonal multiple access technology. .

Example 2

The embodiment of the present invention provides a device for transmitting feedback information, which is configured in a communication system using time-frequency resources of one or more standards, and the same content as that of Embodiment 1 is not described herein.

4 is a schematic diagram of a transmission device for feedback information according to an embodiment of the present invention. As shown in FIG. 4, the transmission device 400 for feedback information includes:

a configuration unit 401, configured to send, by using a physical broadcast channel, configuration information of one or more standards and configuration information of a channel that carries feedback information corresponding to the system respectively;

The feedback unit 402 respectively sends feedback information for the system through the corresponding channel carrying the feedback information.

In an embodiment, the channel carrying the feedback information may be a PHICH.

The configuration information of the PHICH may include one or more of the following information: PHICH occupied frequency domain location information, PHICH occupied time domain location information, PHICH group number indication information, PHICH spreading factor, PHICH A multiple of the number of groups. However, the present invention is not limited thereto, and other information may be included.

The one or more of the PHICH group number indication information, the PHICH spreading factor, and the multiple of the PHICH group number may be transmitted through the PBCH as described above, but the present invention is not limited thereto, and may also be adopted by a high layer. Signaling (eg, RRC signaling) is sent or predetermined.

In this embodiment, the group number indication information of the PHICH may include part or all of the following values: 1/6, 1/2, 1, 2, 4, 6, 8, 10, 12, 16. In the case where the communication system is an FDD system, the spreading factor of the PHICH may include part or all of the following values: 4, 8, 16; in the case where the communication system is a TDD system, the spreading factor of the PHICH may Includes some or all of the following values: 2, 4, 8.

In this embodiment, in the case that the transmission resource of the uplink data corresponding to the feedback information is allocated by the base station through the DCI, the resource for transmitting the PHICH may be determined by one or more of the following parameters: a cyclic shift sequence number of the DMRS of the uplink data, an OCC number of the DMRS for transmitting the uplink data allocated by the base station, a physical resource location allocated by the base station to transmit the uplink data, a base station assignment, or a transmission of the uplink data selected by the user equipment a spreading sequence number used, a base station allocation, or a code pattern number used by the user equipment to transmit the uplink data, a base station allocation, or an interleaver pattern number used by the user equipment to transmit the uplink data, a user equipment identifier, Beam identification, cell identification.

Or, in a case that the transmission resource of the uplink data corresponding to the feedback information is not allocated by the base station by using the DCI, the resource for transmitting the PHICH may be determined by one or more of the following parameters: the uplink that is selected by the user equipment to transmit the uplink data. a cyclic shift sequence number of the DMRS, an OCC number of the DMRS that the user equipment selects to transmit the uplink data, a physical resource location selected by the user equipment to transmit the uplink data, and a spread spectrum used by the user equipment to transmit the uplink data a sequence number, a preamble sequence number selected by the user equipment, a code pattern number used by the user equipment to transmit the uplink data, an interleaver pattern number used by the user equipment to transmit the uplink data, a user equipment identifier, and a beam identifier , cell identification.

In this embodiment, when the communication system uses multiple antennas and transmits based on the beam, the frequency domain resource location of the PHICH may be mapped based on the beam identification and the cell identity.

In another embodiment, the channel carrying the feedback information may be a PDCCH.

It can be seen that, by using the physical broadcast channel, the configuration information of one or more standards and the configuration information of the channel that carries the feedback information corresponding to the standard respectively are sent through the physical broadcast channel; and the feedback is respectively sent through the corresponding channel carrying the feedback information. information. Therefore, in the future system with large bandwidth and multiple modes coexisting, not only the feedback information can be reliably transmitted and the reception complexity can be reduced, but also the non-orthogonal multiple access technology can be reduced. Less or avoid channel collisions with feedback information.

Example 3

The embodiment of the present invention further provides a communication system, and the same content as Embodiment 1 or 2 is not described herein. The communication system uses time-frequency resources of one or more standards; the communication system can include:

a sending end, where the configuration information of one or more standards and the configuration information of the channel carrying the feedback information corresponding to the system respectively are sent by using the PBCH; and the channel for transmitting the feedback information is respectively sent by the corresponding channel for the standard Feedback;

a receiving end, which receives configuration information of the one or more systems sent by the PBCH and configuration information of a channel that carries feedback information corresponding to the system respectively; and corresponding channels according to configuration information of the channel Feedback information for the system is received.

FIG. 5 is a schematic diagram of a communication system according to an embodiment of the present invention, which schematically illustrates a case where a transmitting end is a base station and a receiving end is a user equipment. As shown in FIG. 5, the communication system 500 may include a base station 501 and a user equipment 502. The base station 501 can be configured with the transmission device 400 of the feedback information as described in Embodiment 2.

The embodiment of the present invention further provides a transmitting end, which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices. The following takes a base station as an example for description.

FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 6, base station 600 can include a central processing unit (CPU) 200 and memory 210; and memory 210 is coupled to central processing unit 200. The memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200. The central processing unit 200 can be configured to implement the transmission method of the feedback information described in Embodiment 1.

For example, the central processing unit 200 may be configured to perform control of: transmitting, by using a physical broadcast channel, configuration information of the one or more standards and configuration information of a channel carrying feedback information respectively corresponding to the system; and The channel carrying the feedback information respectively sends feedback information for the system.

In addition, as shown in FIG. 6, the base station 600 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the base station 600 does not have to include all the components shown in FIG. 6; in addition, the base station 600 may further include components not shown in FIG. 6, and reference may be made to the prior art.

The embodiment of the present invention further provides a receiving end, which may be, for example, a user equipment, but the present invention is not limited thereto, and It can be other network devices. The following uses the user equipment as an example for description.

FIG. 7 is a schematic diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 7, the user device 700 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100. It should be noted that the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions. The central processing unit 100 may be configured to implement the transmission method of the feedback information described in Embodiment 1.

For example, the central processing unit 100 may be configured to perform control of: receiving configuration information of one or more systems transmitted through a physical broadcast channel and configuration information of a channel carrying feedback information respectively corresponding to the system; The configuration information of the channel receives feedback information for the system on the corresponding channel.

As shown in FIG. 7, the user equipment 700 may further include: a communication module 110, an input unit 120, a display 160, and a power source 170. The functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 700 does not have to include all the components shown in FIG. 7, and the above components are not required; in addition, the user equipment 700 may further include components not shown in FIG. There are technologies.

The embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a transmitting device or a transmitting end of the feedback information, the program causes the transmitting device or the transmitting end of the feedback information to execute the embodiment 1 The method of transmitting feedback information.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a transmission device or a transmitting end of the feedback information to perform the transmission method of the feedback information described in Embodiment 1.

The above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

The information transmission method/device described in connection with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in FIG. 4 and/or one or more combinations of functional block diagrams (eg, configuration units, feedback units, etc.) may correspond to various software modules of a computer program flow. It can also correspond to each hardware module. These software modules may correspond to the respective steps shown in FIG. 2, respectively. These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).

The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) uses a larger capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.

One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein. An application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof. One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that A person skilled in the art can make various modifications and changes to the present invention within the scope of the present invention.

Claims

A method for transmitting feedback information is applied to a communication system using time-frequency resources of one or more standards, the transmission method comprising:

And transmitting, by using a physical broadcast channel, configuration information of the one or more standards and configuration information of a channel that carries feedback information corresponding to the system respectively;

The feedback information for the system is separately transmitted through the corresponding channel carrying the feedback information.
The transmission method according to claim 1, wherein the channel carrying the feedback information is a physical hybrid automatic repeat indication channel.
The transmission method according to claim 2, wherein the configuration information of the physical hybrid automatic repeat indication indication channel comprises one or more of the following information:

The frequency mixing location information of the physical hybrid automatic retransmission indication channel, the time domain location information occupied by the physical hybrid automatic retransmission indication channel, the group number indication information of the physical hybrid automatic retransmission indication channel, the physical The spreading factor of the hybrid automatic repeat indication channel and the multiple of the number of groups of the physical hybrid automatic repeat indication channel.
The transmission method according to claim 3, wherein said physical hybrid automatic retransmission indication channel group number indication information, said physical hybrid automatic retransmission indication channel spreading factor, said physical hybrid automatic retransmission indication channel One or more of the multiples of the number of groups are also sent via higher layer signaling or are predetermined.
The transmission method according to claim 2, wherein, when the transmission resource of the uplink data corresponding to the feedback information is allocated by the base station by using downlink control information, the resource for transmitting the physical hybrid automatic retransmission indication channel is as follows One or more determinations of the parameter:

a cyclic shift sequence number of the demodulation reference signal for transmitting the uplink data allocated by the base station, an orthogonal superposition code number of the demodulation reference signal for transmitting the uplink data allocated by the base station, and a physical resource allocated by the base station for transmitting the uplink data a location, a base station assignment, or a spreading sequence number used by the user equipment to transmit the uplink data, a base station assignment, or a code pattern number used by the user equipment to transmit the uplink data, a base station assignment, or a transmission selected by the user equipment The interleaver pattern number, user equipment identifier, beam identifier, and cell identifier used for the uplink data.
The transmission method according to claim 2, wherein, when the transmission resource of the uplink data corresponding to the feedback information is not allocated by the base station by using the downlink control information, the resource for transmitting the physical hybrid automatic repeat indication channel is as follows One or more determinations of the parameter:

a cyclic shift sequence number of the demodulation reference signal for transmitting the uplink data selected by the user equipment, an orthogonal superposition code number of the demodulation reference signal for transmitting the uplink data selected by the user equipment, and the uplink data selected by the user equipment The location of the physical resource, the spreading sequence number used by the user equipment to transmit the uplink data, the preamble sequence number selected by the user equipment, the code pattern number used by the user equipment to transmit the uplink data, and the user equipment selection An interleaver pattern number, a user equipment identifier, a beam identifier, and a cell identifier used for transmitting the uplink data.
The transmission method according to claim 2, wherein when the communication system employs multiple antennas and transmits based on a beam, the frequency domain resource location of the physical hybrid automatic repeat indication channel is mapped based on the beam identification and the cell identity.
The transmission method according to claim 1, wherein the channel carrying the feedback information is a physical downlink control channel.
A transmission device for feedback information, configured in a communication system using time-frequency resources of one or more standards, the transmission device comprising:

a configuration unit, configured to send, by using a physical broadcast channel, configuration information of the one or more standards and configuration information of a channel that carries feedback information corresponding to the system respectively;

a feedback unit that separately transmits feedback information for the system through the corresponding channel carrying the feedback information.
The transmission device according to claim 9, wherein the channel carrying the feedback information is a physical hybrid automatic repeat indication channel.
The transmission device according to claim 10, wherein the configuration information of the physical hybrid automatic repeat indication channel comprises one or more of the following information:

The frequency mixing location information of the physical hybrid automatic retransmission indication channel, the time domain location information occupied by the physical hybrid automatic retransmission indication channel, the group number indication information of the physical hybrid automatic retransmission indication channel, the physical The spreading factor of the hybrid automatic repeat indication channel and the multiple of the number of groups of the physical hybrid automatic repeat indication channel.
The transmission apparatus according to claim 11, wherein said physical hybrid automatic retransmission indication channel group number indication information, said physical hybrid automatic retransmission indication channel spreading factor, said physical hybrid automatic retransmission indication channel One or more of the multiples of the number of groups are also sent via higher layer signaling or are predetermined.
The transmission device according to claim 10, wherein the physical hybrid automatic retransmission finger is transmitted when the transmission resource of the uplink data corresponding to the feedback information is allocated by the base station by using downlink control information. The resources of the channel are determined by one or more of the following parameters:

a cyclic shift sequence number of the demodulation reference signal for transmitting the uplink data allocated by the base station, an orthogonal superposition code number of the demodulation reference signal for transmitting the uplink data allocated by the base station, and a physical resource allocated by the base station for transmitting the uplink data a location, a base station assignment, or a spreading sequence number used by the user equipment to transmit the uplink data, a base station assignment, or a code pattern number used by the user equipment to transmit the uplink data, a base station assignment, or a transmission selected by the user equipment The interleaver pattern number, user equipment identifier, beam identifier, and cell identifier used for the uplink data.
The transmission device according to claim 10, wherein, when the transmission resource of the uplink data corresponding to the feedback information is not allocated by the base station by using the downlink control information, the resource for transmitting the physical hybrid automatic repeat indication channel is as follows One or more determinations of the parameter:

a cyclic shift sequence number of the demodulation reference signal for transmitting the uplink data selected by the user equipment, an orthogonal superposition code number of the demodulation reference signal for transmitting the uplink data selected by the user equipment, and the uplink data selected by the user equipment The location of the physical resource, the spreading sequence number used by the user equipment to transmit the uplink data, the preamble sequence number selected by the user equipment, the code pattern number used by the user equipment to transmit the uplink data, and the user equipment selection An interleaver pattern number, a user equipment identifier, a beam identifier, and a cell identifier used for transmitting the uplink data.
The transmission device according to claim 10, wherein when the communication system employs multiple antennas and transmits based on the beam, the frequency domain resource location of the physical hybrid automatic repeat indication channel is mapped based on the beam identification and the cell identity.
The transmission device according to claim 9, wherein the channel carrying the feedback information is a physical downlink control channel.
A communication system using time-frequency resources of one or more standards; the communication system comprising:

And sending, by the physical broadcast channel, the configuration information of the one or more standards, and the configuration information of the channel that carries the feedback information corresponding to the system respectively; and sending respectively by using the corresponding channel carrying the feedback information Feedback information for the system;

a receiving end, which receives configuration information of the one or more systems transmitted through the physical broadcast channel and configuration information of a channel that carries feedback information corresponding to the system respectively; and correspondingly according to configuration information of the channel The feedback information for the system is received on the channel.
The communication system according to claim 17, wherein said transmitting end is a base station, and said receiving end is a user equipment.